KR100469630B1 - Absorbtion chiller and heater - Google Patents

Abstract

The present invention relates to an absorption chiller having an absorber, a regenerator, an evaporator, and a condenser absorbing, regenerating, evaporating, and condensing using a heat source energy, a refrigerant, and an absorbing solution, and including a cooling unit accommodating an absorber and a condenser. The casing includes: a casing having an air supply port and an exhaust port through which cooling air is introduced and discharged, and forming a heat exchange region therein; A blowing fan for discharging the cooling air introduced through the air supply port to the exhaust port; A condenser accommodating part provided in the heat exchange area and having a condensation heat pipe through which refrigerant vapor generated from the regenerator flows, the condenser accommodating the refrigerant vapor by heat exchange with the cooling air and the cooling water; The absorber is provided in the heat exchange area, absorbs the refrigerant vapor generated in the evaporator and has an absorption heat pipe through which the rare solution absorbing the refrigerant vapor flows, and contains an absorber for removing the heat of absorption of the refrigerant vapor by exchanging heat with the cooling air and the cooling water. Wealth; A filler for cooling the cooling water by exchanging heat with the cooling air and the cooling water; A cooling water spraying unit provided at an upper portion of the condenser and the absorber to spray cooling water; An eliminator for recovering water droplets scattered through the exhaust port into the casing; A sump collecting water for cooling water passing through the condenser, the absorber and the filler; It characterized in that it comprises a cooling water circulation pump for circulating the cooling water in the collection tank to the cooling water spraying unit. As a result, it is possible to improve the heat exchange efficiency, reduce the driving failure, provide a cold and wet operation by wet and dry, and provide an absorption cold and hot water machine that can reduce the cooling water and operating costs.

Description

Absorption cold and hot water machine {ABSORBTION CHILLER AND HEATER}

The present invention relates to an absorption chiller, and more particularly, to an absorption chiller, in which a condenser and an absorber are accommodated in a cooling unit operated wet and dry.

In general, absorption type cold and hot water absorbers, regenerators, evaporators and condensers that absorb, regenerate, evaporate, and condense using heat source energy, refrigerants, and absorption solutions, and low temperature dilute absorbent solutions (hereinafter referred to as 'dilutions') and high temperature It has a solution heat exchanger for exchanging heat by flowing concentrated absorbent solution (hereinafter referred to as 'concentrate') and a boiler for producing a heating heat source.

A conventional absorption cold and hot water machine is shown in FIG. Conventional absorption chiller, evaporator 310 to produce cold water of low temperature using the latent heat of evaporation of the refrigerant (H2O) and to flow the water vapor generated in the evaporation process to the absorber and the absorber solution (LiBr) to the evaporator 310 Absorber 330 absorbs the refrigerant vapor generated in the evaporator, maintains the refrigerant vapor partial pressure in the evaporator at a saturation pressure lower than the required cold water temperature, and releases the heat of absorption into the cooling water, and heats the concentrated solution to separate the refrigerant and regenerate it into a concentrated solution. In the regenerator 350 through heat exchange between the regenerator 350 for flowing the absorber and the refrigerant vapor to the condenser, and the high temperature agricultural solution supplied from the regenerator 350 and the low temperature rare solution supplied from the absorber 330. Solution thermal bridge to reduce the amount of heating required for heating the solution and to reduce the amount of cooling heat to remove the heat generated when the concentrated solution supplied to the absorber 330 refrigerant vapor absorption Unit 370, a condenser 380 for condensing the refrigerant vapor generated in the regenerator 350, a solution circulation pump 345 for forcibly circulating the solution from the absorber 330 to the regenerator 350, and a refrigerant The refrigerant circulation pump 317 to be circulated, the heat source inlet pipe 353 and the heat source discharge pipe 355 connected to the regenerative heat pipe 351 accommodated in the regenerator 350, and the absorber 330 and the condenser 380 are respectively accommodated. Low temperature cooling water inlet pipe 237 connected to the absorption heat transfer pipe 331 and the condensation heat transfer pipe 381, high temperature coolant discharge pipe 439 connected to the condensation heat transfer pipe 381 disposed in the condenser 380, and an evaporator ( The cold water inlet pipe 313 and the cold water discharge pipe 315 connected to the evaporation heat pipe 311 accommodated in the 310 and the refrigerant suction pipe for injecting the coolant onto the evaporation heat pipe 311 while recirculating the refrigerant in the evaporator 310 ( 310 and a refrigerant jet pipe 321.

The refrigerant liquid condensed in the condenser 380 flows to the evaporator 310 through the refrigerant liquid supply pipe 385, and the refrigerant liquid flowing to the evaporator 310 maintains a high vacuum of about 6 mmHg. Accumulated in the refrigerant storage unit formed at the bottom of the The refrigerant circulation pump 317 inhales the refrigerant liquid through the refrigerant suction pipe 319 and injects the refrigerant liquid on the evaporator heat pipe 311 in the evaporator 310 through the refrigerant discharge pipe 321 to evaporate using latent heat of evaporation. Cold water is manufactured by absorbing the heat of cold water flowing into the heat transfer tube 311. Cold water is sent to the cooling load facility (not shown) through the cold water discharge pipe 315 and the cold water warmed by absorbing the cooling load is recycled to the evaporator 310 through the cold water inlet pipe 313, in the absorber 330 The pressure in the evaporator 310 is maintained at a low pressure due to the absorption of the sprayed agricultural solution to absorb the refrigerant vapor, so that the refrigerant injected onto the evaporator tube 311 in the evaporator 310 continuously evaporates and thus the production of cold water continues. It will follow.

The solution circulation pump 345 sucks the rare solution from the rare solution storage unit configured in the absorber 330 through the rare solution discharge pipe 343, and sends the solution to the solution heat exchanger 370 and the concentrated solution inlet pipe 367. The solution is heat-exchanged with the hot concentrated solution flowing from the regenerator 350 while flowing in the solution heat exchanger 370, and the rare solution whose temperature is raised is supplied to the regenerator 350 through the rare solution supply pipe 361.

Then, the rare solution supplied to the regenerator 350 is sprayed onto the regenerated heat transfer tube 351 configured in the regenerator 350, and the rare solution is separated into a refrigerant vapor and a high temperature agricultural solution while the refrigerant is heated, and the refrigerant vapor is a condenser 380. ) And the condensed refrigerant liquid while flowing on the surface of the condensation heat transfer tube 381 is sent into the evaporator 310 through the refrigerant liquid supply pipe 385. The hot agricultural solution in the solution storage unit provided in the lower region of the regenerator 350 flows into the solution heat exchanger 370 through the agricultural liquid discharge pipe 363 and exchanges heat with the rare solution directed to the regenerator 350 to introduce the agricultural solution. The tube 367 is sprayed onto the absorption heat pipe 331 configured in the absorber 330. The sprayed agricultural solution absorbs moisture in the process of absorbing the refrigerant vapor evaporated in the evaporator 310, and the concentration is diluted. The concentrated liquid whose temperature is increased by the absorption heat is cooled by the absorption heat pipe 331 through which the coolant flows. And the rare solution accumulated in the solution storage unit in the absorber 330 is regenerated as a concentrated solution in the regenerator 350 through the solution circulation pump 345 and the solution heat exchanger 370, and the recirculation flowed into the absorber 330 continues. do.

Meanwhile, the conventional absorption type hot and cold water heater removes the heat of absorption generated when the refrigerant vapor is absorbed into the absorption liquid in the absorber 330 through the recycling of the cooling water from the cooling tower 400 and the condensation heat of the refrigerant vapor in the condenser 380.

The cooling tower 400 includes a casing 410 having an air supply port 413 through which cooling air is introduced, an exhaust port 415 through which cooling air is discharged, and forming a heat exchange area 411 therein, and an air supply port 413. A blowing fan 417 for discharging the cooling air introduced through the exhaust port 415, a filler 423 provided in the heat exchange area 411 in the casing 410 to allow the cooling water and the air to flow in opposition to each other, and the cooling water discharge pipe Cooling water sprinkling unit 425 for supplying the high temperature cooling water introduced through the filler (439) to the filler 423, the eliminator 431 for collecting the water droplets scattered to the exhaust port 415 into the casing 410, It has a water collecting tank 423 for collecting the cooling water cooled through the filler 423. Here, the cooling water sprinkling part 425 is provided in the cooling water distribution pipe 427 and the cooling water distribution pipe 427 for distributing and supplying the high temperature cooling water, and a plurality of pressure water spraying of the high temperature cooling water toward the upper end of the filler 423. Has a spray nozzle (429).

Cooling water collected in the collection tank 433 of the cooling tower 400 removes the refrigerant vapor absorption heat of the agricultural liquid sprayed on the absorption heat pipe 331 configured in the absorber 330 through the cooling water inlet pipe 437, and then the condenser ( The condensed heat pipe 381 configured in the 380 condenses the refrigerant vapor in the condenser 380 and the heated coolant is recycled to the cooling tower 400 through the coolant discharge pipe 439 for recooling.

Therefore, in general, the absorption type hot and cold water remover absorbs heat generated when the concentrate is absorbed from the refrigerant vapor in the absorber and has a separate cooling tower for condensation of the refrigerant vapor.

However, in such a conventional absorption chiller, an open cooling tower is used in which the cooling water and air of the cooling tower are in direct contact heat exchange, and the contaminants contaminate the inside of the heat pipe because the coolant contaminated from the air flows in each heat pipe of the absorber and the condenser. Degradation of heat exchange efficiency and accumulation of contaminants can lead to shortening of life and failure of operation. In addition, in the case of a conventional absorption tower for a cold water heater, which is operated even in winter, the cooling water freezes in the filler and the sump, and may cause a driving failure.

Therefore, an air-cooled absorption chiller that does not require additional equipment, such as a cooling tower and cooling water piping, is disclosed in Korean Patent Publication No. 1989-4393.

The conventional air-cooled absorption chiller disclosed is durable without freezing, leaking and corrosion of the cooling water generated in the wet cooling tower.

On the other hand, in the same cooling capacity, air-cooled cooling that uses sensible heat of air is significantly more expensive than evaporative cooling that uses evaporative latent heat of water. When the air temperature rises above the design temperature in the summer and summer, there is a problem that the cooling efficiency is lowered.

In addition, a cooling device for absorption air conditioner is typically disclosed in Korean Utility Model Publication No. 2001-2231.

The disclosed conventional absorption air conditioner cooling system integrates the absorption chiller and the cooling tower, thereby making the product more compact and reducing heat loss and cooling water piping according to the cooling water flow distance, compared to installing the conventional absorption chiller and the cooling tower separately. There is an economic side to let.

However, as described above, there is a problem in operating problems such as deterioration of heat exchange efficiency and freezing of the cooling water due to contamination of the heat transfer tube according to the open cooling tower.

Therefore, it prevents contamination inside the heat exchanger tube where the fluid to be cooled flows and heat exchanges, and improves the cooling heat exchange efficiency and reduces water and energy by switching between wet cooling and dry cooling according to the temperature of the fluid to be cooled and the temperature of the cooling air. In addition, there is a need for an absorption cold and hot water machine that can reduce the driving obstacles.

Accordingly, an object of the present invention is to reduce the installation area and piping by integrating a cooling unit for receiving a condenser and an absorber in which the fluid to be cooled flows into the heat pipe, and an evaporator, a solution heat exchanger, and a boiler for producing a heat source. It is to provide an absorbent cold and hot water heater that saves money and facilitates operation.

Another object of the present invention is to provide an absorption type cold and hot water machine which allows the cooling medium to flow on the surface of the heat exchanger tube in a sealed structure, thereby improving pollution prevention and cooling heat exchange efficiency in the heat transfer tube, and reducing operation failure.

It is still another object of the present invention to provide an absorption cold / hot water machine capable of converting a cooling unit into wet and dry operation according to a change in cooling air temperature and temperature of a condensed refrigerant liquid and a rare solution, and reducing cooling water and operating costs.

1 is a schematic configuration diagram of an absorption cold / hot water heater according to a first embodiment of the present invention;

2 is a schematic configuration diagram of an absorption cold / hot water heater according to a second embodiment of the present invention;

Figure 3 is a schematic side cross-sectional view of the main part of the absorption chiller according to the third embodiment of the present invention,

Figure 4 is a schematic side cross-sectional view of the main part of the absorption chiller according to the fourth embodiment of the present invention,

5 is a schematic plan view of FIG. 4;

6 is an operation flowchart of the absorption type cold and hot water heater according to the embodiments of the present invention;

7 is a schematic configuration diagram of a conventional absorption chiller.

* Explanation of symbols for the main parts of the drawings

110: evaporator 111: evaporation heat pipe

117: refrigerant circulation pump 130: absorber

131: absorption heat pipe 132, 132a: absorption heat pipe header

133: agricultural solution spray unit 134: condensation tube header

145: solution circulation pump 150: regenerator

151: regenerated heat transfer tube 170: solution heat exchanger

180: condenser 181: condensation heat pipe

187: condensation refrigerant pump 200: cooling unit

210: casing 213: air supply

215: exhaust port 217: blowing fan

219: condenser accommodating part 221: absorber accommodating part

223: filler 225: coolant spraying part

227: cooling water distribution pipe 229: water spray nozzle

231: eliminator 233,233a: sump

235: cooling water circulation pump 241: cooling air temperature sensor

243: condensate temperature sensor 245: rare solution temperature sensor

247: control unit 251: air supply duct

253 exhaust exhaust duct

In order to achieve the above object, the present invention, in the absorption type cold and hot water having an absorber, a regenerator, an evaporator and a condenser absorbing, regenerating, evaporating and condensing using a heat source energy, a refrigerant and an absorbing solution, accommodating the absorber and the condenser And a cooling unit, the cooling unit comprising: a casing having an air supply port and an exhaust port through which cooling air is introduced and discharged, and forming a heat exchange region therein; A blowing fan configured to discharge cooling air introduced through the air supply port to the exhaust port; A condenser accommodating part provided in the heat exchange area and having a condensation heat exchanger tube through which refrigerant vapor generated from the regenerator flows, and accommodating the refrigerant vapor by exchanging heat with cooling air and cooling water; It is provided in the heat exchange area, and has an absorption heat pipe for absorbing the refrigerant vapor generated in the evaporator flows the rare solution absorbing the refrigerant vapor, the absorber for removing the heat of absorption of the refrigerant vapor by heat exchange with the cooling air and cooling water is accommodated An absorber receiving portion; A filler for cooling the cooling water by exchanging heat with the cooling air and the cooling water; A cooling water sprinkling unit provided at an upper portion of the condenser and the absorber to sprinkle the cooling water; An eliminator for recovering water droplets scattered to the exhaust port into the casing; A water collecting tank collecting the cooling water passing through the condenser, the absorber and the filler; It provides an absorption chiller, characterized in that it comprises a cooling water circulation pump for circulating the cooling water in the collection tank to the cooling water spraying unit.

Here, the cooling air temperature sensor for sensing the temperature of the cooling air supplied into the casing; A condensate temperature sensor for sensing a temperature of the condensed refrigerant liquid flowing from the condenser toward the evaporator; A rare solution temperature sensor for sensing a temperature of the rare solution flowing from the absorber to the regenerator; And a control unit for controlling the operation of the blower fan and the cooling water circulation pump according to the signals sensed by the cooling air temperature sensor, the condensate temperature sensor, and the rare solution temperature sensor. Depending on the sensing temperature of the solution, the cooling unit can be operated wet and dry, and cooling water consumption and operating cost can be reduced.

The control unit operates the blower fan at full speed when the temperature detected by the temperature sensor of the cooling air is higher than a set temperature, and decelerates the blower fan when the temperature is low, and detects each of the condensate temperature sensor and the rare solution temperature sensor. When the temperature is higher than each set temperature, the wet operation is performed, and when the temperature is low, the operation of the cooling water circulation pump is stopped to switch to the dry operation.

The cooling air and the cooling water flowing in the cooling unit may be formed of any one of counter flow and cross flow.

Cooling fins may be provided in the condensation heat pipe and the absorption heat pipe to improve heat exchange efficiency with the cooling air and the cooling water due to the condensation of the refrigerant steam in the condensation heat pipe and the absorption of the refrigerant vapor in the absorption heat pipe.

In accordance with the present invention further comprises an air supply duct coupled to the air supply and guides the flow of cooling air flowing into the air supply, and an exhaust duct is connected to the exhaust port to guide the flow of cooling air discharged to the outside. Absorption chiller can be installed indoors.

The upper end of the condenser communicates in the vertical direction and is coupled to the lower end of the regenerator. The heat exchanger is coupled to the heat exchanger in a horizontal direction with both sides as headers in the open heat exchange area of the condenser. You can also accept.

In addition, the upper end of the absorber is connected in the vertical direction and coupled to the lower end of the evaporator, the heat exchanger tube is coupled in the horizontal direction with both sides as headers in the open heat exchange area of the absorber, the upper part constitutes the coolant water spraying part and the lower part It can also accommodate a sump.

On the other hand, the regenerator and the condenser are coupled in communication in the horizontal direction, the heat exchanger tube is coupled in the horizontal direction with both sides as a header in the open heat exchange area of the condenser, the upper portion constitutes the cooling water spraying part and the bottom to accommodate the water collection tank It may be.

In addition, the evaporator and the absorber are coupled in a horizontal direction, the heat exchanger tube is coupled in the horizontal direction with both sides as a header in the open heat exchange region of the absorber, the upper portion constitutes a cooling water sprayer, and the lower part to receive a water tank. It may be.

The condenser side cooling water collection tank and the absorber side cooling water collection tank are preferably configured to have a water level balance tube communicating with each collection tank.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

Prior to the description, the illustration and description of the general accessory device configured in the absorption chiller and water heater will be omitted, and in the various embodiments described above, components having the same configuration will be described in the first embodiment using the same reference numerals. In the other embodiments, only the configuration different from the first embodiment will be described.

1 is a schematic diagram of an absorption cold / hot water heater according to a first embodiment of the present invention. As shown, the absorption chiller according to the first embodiment of the present invention, the evaporator 110 for producing cold water of low temperature using the evaporation of the refrigerant, and the refrigerant vapor generated in the evaporator 110 using the absorption solution Absorber 130 to absorb, the regenerator 150 to regenerate the rare solution to the concentrated solution and generates a high-temperature refrigerant vapor, and the hot agricultural solution supplied from the regenerator 150 and the low temperature supplied from the absorber 130 Solution heat exchanger that reduces the amount of heat required for heating the rare solution in the regenerator 150 through heat exchange between the rare solutions and reduces the amount of cooling heat that removes the heat generated when the concentrated solution supplied to the absorber 130 absorbs the refrigerant vapor. And a condenser 180 for condensing the refrigerant vapor generated in the regenerator 150.

An evaporator heat pipe 111 is provided in the evaporator 110, and the evaporator heat pipe 111 is connected to the cold water inlet pipe 113 and the cold water discharge pipe 115 through which cold water flowing in the evaporator heat pipe 111 flows in and out. It is. The cold water inflow pipe 113 is provided with a cold water circulation pump 114 for circulating cold water into the evaporation heat pipe 111. In addition, the evaporator 110 is provided with a refrigerant circulation pump 117 for recycling the refrigerant in the evaporator 110, the refrigerant circulation pump 117 to suck the refrigerant from the refrigerant storage unit (not shown) in the evaporator 110. The refrigerant suction pipe 119 and the refrigerant suctioned are connected to the refrigerant jet pipe 121 for injecting the evaporation heat pipe 111.

Absorber 130 is accommodated in the absorber accommodating portion 221 of the cooling unit 200 to be described later, the refrigerant solution flowing from the regenerator 150 is absorbed by the refrigerant vapor flowing from the evaporator 110 is changed into a rare solution It has an absorption heat pipe 131 flowing. The absorption heat exchanger tube 131 exchanges heat with cooling air and cooling water flowing to the surface of the absorption heat transfer tube 131 to remove heat generated when the concentrated liquid is absorbed by the refrigerant vapor. On the outer circumferential surface of the absorption heat pipe 131, a plurality of cooling fins 131a are mounted to increase the heat exchange efficiency between the cooling air and the cooling water.

One side of the absorption heat pipe 131 is provided with a concentrated solution spraying unit 133 in which the refrigerant vapor and the concentrated solution are mixed. The concentrate solution injection unit 133 has a refrigerant vapor pipe 135 through which the refrigerant vapor generated from the evaporator 110 flows, and a farm solution supply pipe 137 through which the agricultural solution passed through the solution heat exchanger 170 is introduced from the regenerator 150. ) Is connected.

In addition, a rare liquid storage unit 141 is provided in an adjacent region of the concentrated liquid injector 133, in which the absorption heat pipe 131 flows and the heat exchanged with the cooling air and the cooling water to collect the rare solution absorbing the refrigerant vapor. The rare solution storage unit 141 is connected to a rare solution discharge pipe 143 for supplying the rare solution to the solution heat exchanger 170. The rare solution discharge pipe 143 is provided with a solution circulation pump 145 for forcibly circulating the rare solution of the absorber 130 to the regenerator 150 via the solution heat exchanger 170.

A regeneration heat pipe 151 is provided in the regenerator 150, and the regeneration heat pipe 151 is connected to a heat source inlet pipe 153 and a heat source discharge pipe 155 through which heated hot water is introduced and discharged from the boiler 159. The heat source circulating pump 157 is provided on the heat source discharge pipe 155 to forcibly circulate the hot water flowing through the boiler 159, the heat source inlet pipe 153, the regenerative heat transfer pipe 151, and the heat source discharge pipe 155. In addition, the regenerator 150 flows a rare solution flowing from the solution heat exchanger 170, and a rare solution supply pipe 161 for injecting the rare solution onto the regenerator heat pipe 151, and a high temperature regenerated from the regenerator 150. The agricultural solution discharge pipe 163 for supplying the agricultural solution to the solution heat exchanger 170 and the refrigerant vapor pipe 165 for supplying the high temperature refrigerant vapor generated from the regenerator 150 to the condenser 180 are connected.

Between the absorber 130 and the regenerator 150, the hot agricultural solution flowing from the regenerator 150 toward the absorber 130 and the low temperature solvent flowing from the absorber 130 toward the regenerator 150 are mutually heat exchanged. The solution heat exchanger 170 is provided.

The condenser 180 is accommodated in the condenser accommodating part 219 of the cooling unit 200 to be described later, and has a condensation heat pipe 181 through which the condenser refrigerant vapor generated from the regenerator 150 flows. The condensation heat pipe 181 is connected to the refrigerant vapor pipe 165, the refrigerant vapor in the condensation heat pipe 181 is condensed by mutual heat exchange with the cooling air and the cooling water flowing on the surface of the condensation heat pipe 181. On the outer circumferential surface of the condensation heat pipe 181, a plurality of cooling fins 181a are mounted to increase the heat exchange efficiency between the cooling air and the cooling water. The condensed condensate is supplied to the evaporator 110 through a condensate storage unit (not shown) and a condensate supply pipe 185 configured on one side of the condensation heat pipe 181.

On the other hand, the absorption cold and hot water receiving unit, the condenser 180 and the absorber 130, the cooling unit for removing the heat of absorption generated in the absorber 130 and the heat of condensation generated in the condenser 180 by mutual heat exchange with the cooling air and the cooling water ( 200). The cooling unit 200 includes an air supply port 213 and an exhaust port 215 through which cooling air is introduced and discharged, and through a casing 210 to form a heat exchange area 211 therein, and an air supply port 213. Blowing air 217 for discharging the introduced cooling air to the exhaust port 215, and the steam generated in the process of heating and condensing the concentrated liquid from the regenerator 150 provided in the heat exchange area 211 in the casing 210 And a condenser composed of a condensation heat exchanger tube 181 and a condensate storage unit (not shown) for mutually heat-exchanging with the cooling water, and a concentrated solution provided in the heat exchange area 211 in the casing 210 and sprayed from the regenerator 150. Absorption heat transfer pipe 131 and the solution injection unit 133 and the solution storage to absorb the refrigerant vapor flowing from the evaporator 110 and remove the heat generated during the absorption process of the refrigerant vapor by mutual heat exchange with the falling Suction composed of part 141 A filler 223 for cooling the cooling water by exchanging heat with the water, the cooling air, and the high temperature cooling water, and a cooling water sprinkling unit 225 disposed above the condenser 180 and the absorber 130 to spray the cooling water; The eliminator 231 for collecting the water droplets scattered through the exhaust port 215 into the casing 210, the water collecting tank 233 for collecting the cooling water, and the cooling water in the water collecting tank 233 are circulated to the cooling water spraying unit 225. It has a cooling water circulation pump 235.

The condenser 180 is disposed in an upper region of the absorbers 130 spaced apart by a predetermined interval in the horizontal direction of the casing 210. Here, although not shown for the balanced distribution of cooling heat of the cooling unit, the coolant of the low temperature cooling water injected from the cooling water spraying unit 225 and the cooling air directed to the exhaust port, respectively, the heat transfer tubes 131 and 181 of the absorber 130 and the condenser 180. The condenser 180 and the absorber 130 are configured at the same height at a predetermined interval in the transverse direction of the casing 210 so as to flow directly on the upper side of the casing 210, or the vertically adjacent position avoiding the bottom of the condenser 180. Absorber 130 can be installed in the.

The filler 223 is disposed in the lower region of the absorber 130 to exchange heat with the cooling air directed to the absorber 130 and the condenser 180 and the high temperature coolant flowing from the absorber 130 via the condenser 180. Cool the coolant. Here, the filler 223 may be disposed in the lower region of the condenser 180 or over the lower regions of the condenser 180 and the absorber 130.

The cooling water sprinkling unit 225 is installed in the cooling water distribution pipe 227 for distributing and supplying the high temperature cooling water and the cooling water distribution pipe 227 to pressurize the cooling water toward the upper ends of the condensation heat transfer pipe 181 and the absorption heat transfer pipe 131. The sprayer has a plurality of spray nozzles 229.

In addition, the cooling unit 200 is provided with a cooling water circulation pump 235 for recirculating the cooling water collected in the collection tank 233 into the cooling unit 200, the cooling water circulation pump 235 to suck the cooling water in the collection tank 233 It is connected between the cooling water suction pipe 237 and the cooling water discharge pipe 239 which supplies the cooling water to the cooling water distribution pipe 227.

On the other hand, the absorption cold and hot water, the cooling air temperature sensor 241 for detecting the temperature of the cooling air supplied into the casing 210, and the condensate temperature for sensing the temperature of the condensate flowing from the condenser 180 toward the evaporator 110 It has a sensor 243, a rare solution temperature sensor 245 for measuring the temperature of the rare solution flowing from the absorber 130 to the regenerator 150, the cooling air temperature sensor 241, the condensate temperature sensor 243 The controller 247 further controls the shift of the blower fan 217 and the operation of the coolant circulation pump 235 according to the signal detected from the rare solution temperature sensor 245.

By this configuration, first, only the main points related to the system for the action of the absorption solution in the cooling cycle of the absorption type cold and hot water heater according to the present invention and the condensation of the refrigerant vapor by the cooling and the removal of absorption heat are as follows.

The refrigerant liquid flowing from the condenser 180 to the evaporator 110 accumulates in the lower part of the evaporator 110 which maintains a high vacuum of about 6 mmHg. The refrigerant circulation pump 117 inhales the refrigerant liquid through the refrigerant suction pipe 119 and injects the refrigerant liquid on the evaporator heat pipe 111 in the evaporator 110 through the refrigerant ejection pipe 121, thereby using latent heat of evaporation. By absorbing the heat of the cold water flowing into the evaporation heat pipe 111, the cold water is produced. Cold water is sent to the cooling load facility (not shown) through the cold water discharge pipe 115 and the cold water warmed by absorbing the cooling load is recycled to the evaporator 110 through the cold water inlet pipe 113, evaporation in the evaporator 110 The refrigerant vapor generated on the heat transfer pipe 111 continuously evaporates, and the refrigerant vapor generated in the evaporator 110 is absorbed by the agricultural liquid introduced into the absorber 130 from the regenerator 150. (About 6 ~ 7mmHg) and the saturation temperature (about 5 ??) of the refrigerant is maintained, so the production of cold water using the latent heat of evaporation of the refrigerant is continued.

The solution circulation pump 145 sucks the rare solution from the rare solution storage unit 141 configured in the absorber 130 through the low temperature rare solution discharge pipe 143 and sends the solution to the solution heat exchanger 170, and the regenerator 150 is The temperature is raised by exchanging heat with the hot agricultural liquid flowing in the solution heat exchanger 170 through the agricultural liquid discharge pipe 163 from the agricultural liquid storage unit (not shown) configured at the bottom, and the regenerator through the rare liquid supply pipe 161. Supplied to 150.

In addition, the agricultural liquid supplied to the regenerator 150 is connected to the heat source inlet pipe 153 and the heat source discharge pipe 155 and sprayed on the regeneration heat pipe 151 configured in the regenerator 150 and reheated, and the rare solution is a refrigerant. It is separated into steam and high temperature agricultural liquid, that is, the rare liquid is regenerated into the agricultural liquid and at the same time the refrigerant vapor is sent to the condenser 180 to condense by mutual heat exchange with the cooling air and cooling water flowing through the cooling unit 200, The coolant liquid is sent to the evaporator 110. The high temperature agricultural solution regenerated in the regenerator 150 is sent to the solution heat exchanger 170 through the agricultural liquid storage unit (not shown) and the agricultural liquid discharge pipe 163, and passes through the solution heat exchanger 170 to the regenerator 150. The farm solution whose temperature is lowered by heat exchange with the low temperature solution which is directed to the is sprayed to the farm solution spraying unit 133 of the absorber 130 through the farm solution supply pipe 137, and the farm solution of the absorber 130 is discharged from the evaporator 110. The refrigerant vapor supplied to the injection unit 133 is absorbed into a rare solution state and flows on the surface of the absorption heat transfer tube 131 in the cooling unit 200 while flowing the absorption heat transfer tube 131 configured in the absorber 130. Through mutual heat exchange with the cooling air and the cooling water, it becomes a low temperature rare solution and accumulates in the rare solution storage unit 141 of the absorber 130. The rare solution is recycled back into the concentrated solution in the regenerator 150, and recycling continues to the rare solution by the action of absorbing the refrigerant vapor again in the absorber 130.

On the other hand, before explaining the operation of the cooling unit 200, since the basic principle and operation of the cooling unit can be considered the same as the prior art, the description is omitted, the condenser 180 and the absorber 130 of the absorption type cold and hot water according to the present invention. If only the main matters related to the heat exchange action between the refrigerant liquid and the absorption liquid of the cooling liquid and the cooling air flowing through the cooling unit 200 and the cooling water is as follows.

In the cooling unit 200, the wet cooling is performed on the condensation heat transfer pipe 181 of the condenser 180 and the absorption heat transfer tube 131 of the absorber 130 through the spray nozzle 229 for cooling water circulating in the cooling unit 200. When sprayed toward the water, the coolant injected through the spray nozzle 229 is refrigerant steam flowing through the condensation heat pipe 181 and the absorption heat pipe 131 through the heat exchange of the evaporative cooling together with the cooling air introduced from the air supply 213. Heat of condensation and refrigerant vapor absorption of the concentrated solution are removed. The high temperature cooling water passing through the condensation heat transfer tube 181 and the absorption heat transfer tube 131 and the cooling air introduced from the air supply 213 flow to the filler 223 to evaporate and heat exchange to cool the high temperature cooling water. It is accumulated in the sump tank 233 and is recycled to the coolant sprinkling unit 225 through the coolant circulation pump 235. At this time, the cooling air flowing from the air supply port 213 and flowing through the filler 223 is directly contacted with the cooling water sprayed on the surface of the condensation heat transfer pipe 181 and the absorption heat transfer pipe 131, and then evaporated and heat exchanged, followed by a blower fan ( 217 and the exhaust port 215 are discharged to the outside.

Dry cooling in the cooling unit 200 is the configuration of the cooling unit 200 is the same as wet cooling, but the temperature in the low cooling air conditions that can remove the condensation of the refrigerant steam and the absorption heat of the refrigerant steam only by the cooling air in the atmosphere In the case of operating by detection and control, it is possible to reduce the consumption of the cooling water and to reduce the power consumption of the cooling water circulation pump 235 and to eliminate the freezing problem of the cooling water at the air temperature at the freezing point. In the dry operation, the coolant circulation pump 235 and the coolant flow are stopped and the air flowing from the air supply port 213 flows on the surfaces of the absorption heat transfer pipe 131 and the condensation heat transfer pipe 181 to remove the absorption heat and the heat of condensation. Then, the air is discharged to the outside through the blowing fan 217 and the exhaust port 215.

In addition, in the case of dry operation at low cooling air conditions, the blower fan may be decelerated to prevent overcooling.

2 is related to an absorption type cold and hot water heater according to a second embodiment of the present invention, and relates to an absorption type cold water heater installed in a room where supply and exhaust air flow is limited. Unlike the first embodiment described above, the absorption type cold and hot water machine according to the second embodiment of the present invention is combined with the air supply 213 of the cooling unit 200 to supply an air duct for guiding the flow of cooling air introduced from the outside ( 251 and an exhaust duct 253 coupled to the exhaust port 215 of the cooling unit 200 to guide the high temperature cooling air flow discharged to the outside. The blowing fan 217 for discharging the cooling air introduced through the air supply duct 251 to the outside is accommodated in the exhaust duct 253.

Meanwhile, the absorption cold / hot water machine according to the third embodiment of the present invention is shown in FIG. 3. As shown, unlike the above-described embodiments, the absorption chiller according to the third embodiment of the present invention, the regenerator 150 and the evaporator 110 is arranged in the upper portion and the cooling unit 200 in the lower portion, The upper end of the condensation tube tube header 134 accommodated and opened in the cooling unit 200 communicates with the bottom of the regenerator 150 and is coupled horizontally to the condensation tube tube header 134 facing each other. And a condenser liquid storage unit 183 coupled to the bottom of the condensation tube header 134.

In addition, the upper end of the absorption heat pipe header 132a accommodated in the cooling unit 200 is connected to the agricultural liquid spray unit 133 formed at the bottom of the evaporator 110 so as to be coupled to and opposed to each other. The absorber tube 131 coupled to the horizontal in the horizontal direction, and the absorber 130 is composed of a concentrated liquid reservoir 141 coupled to the bottom of the absorber tube header 132a.

An exhaust port 215 and a blowing fan 217 are provided in the central portion of the side of the casing 210 between the condenser 180 and the absorber 130, and the condenser 180 and the absorber are disposed at both sides with the exhaust port 215 interposed therebetween. 130 is arrange | positioned opposingly.

Collecting tanks 233 and 233a are provided between the inside of the condensation heat pipe header 134 under the condensation heat pipe 181 and the inside of the heat absorbing heat pipe header 132a under the absorption heat pipe 131. The water collection tank 233 on the absorption heat pipe 131 side and the water collection tank 233a on the condensation heat pipe 181 side are connected by a water level balance tube 234 so that the cooling water of the water collection tank 233 on the absorption heat pipe 131 side is condensed. It flows into the collection tank 233 on the heat transfer pipe 181 side, and is circulated to the cooling water spraying part 225 by the cooling water circulation pump 235.

In addition, the lower region of the collection tank 233 on the side of the condenser 180 is coupled to communicate with the bottom of the condensation tube 134 and the refrigerant liquid storage unit for storing the refrigerant liquid condensed refrigerant vapor through the condensation tube 181 183 is provided. The refrigerant liquid storage unit 183 is connected to the refrigerant liquid supply pipe 185 for supplying the refrigerant liquid to the evaporator 110. The refrigerant liquid supply pipe 185 is provided with a refrigerant circulation pump 117 for forcibly supplying the refrigerant liquid to the evaporator 110.

One side of the upper region of the casing 210 of the cooling unit 200 is provided with a regenerator 150 in communication with the upper portion of the condenser 180, the other side of the evaporator 110 is in communication with the upper portion of the absorber 130. Is arranged.

The solution heat exchanger 170 is provided in the lower region of the casing 210, that is, the lower region of the exhaust port 215.

Cooling water sprinkling portions 225 are respectively formed in the region between the upper inner portion of the condensation tube header 134 formed at the bottom of the regenerator 150 and the upper inner portion of the absorbing tube header 132a formed at the bottom of the evaporator 110. .

The cooling water distribution pipe 227 is connected to the cooling water spraying unit 225 of the condenser 180 and the cooling water spraying unit 225 of the absorber 130, and the cooling water is supplied to the cooling water circulation pump 235 and the cooling water distribution pipe 227. The water is sprayed onto the condensation heat pipe 181 and the absorption heat pipe 131 through the plurality of water spray nozzles 229. On each outer side of the casing 210 in which the condensation heat pipe 181 and the absorption heat pipe 131 are disposed, an air supply port 213 is provided for introducing cooling air from the outside, and thus the condensation heat pipe 181 and the absorption heat pipe 131 are provided. Cooling water sprayed on the surface and cooling air flowing from the air supply port 213 cross flow, and remove the condensation of the refrigerant vapor and the refrigerant vapor absorption heat flowing in the condensation heat pipe 181 and the absorption heat pipe 131, respectively. To evaporative heat exchange.

An eliminator 231 is provided between the condensation heat transfer pipe 181 and the absorption heat transfer pipe 131 and the exhaust port 215 to recover the scattering droplets generated from the high-temperature and high-humidity air discharged by evaporative cooling into the casing 210. .

In the above-described three embodiments, the exhaust port 215 and the blower fan 217 are provided in the central portion of the side portion of the casing 210 between the condenser 180 and the absorber 130. An exhaust port 215 and a blower fan 217 may be configured in the upper central region of the casing 210 between the evaporators 110.

FIG. 4 is a schematic sectional side view of the main part of the absorption type cold and hot water heater according to the fourth embodiment of the present invention, and FIG. 5 is a schematic plan view of FIG. As shown in these figures, unlike the above-described embodiments, the absorption chiller according to the fourth embodiment of the present invention, the regenerator 150 and the condenser 180 is opened in a horizontal direction by the first connecting conduit 261. The condenser 180 and the absorber coupled to each other and coupled to the evaporator 110 and the absorber 130 in a horizontal direction by the second connection conduit 263 and accommodated at both sides of the casing 210 of the cooling unit 200 ( 130 is disposed opposite. In the upper central region of the casing 210 between the regenerator 150 and the evaporator 110, an exhaust port 215 and a blowing fan 217 are configured.

The cooling water distribution pipe 227 is connected to the cooling water spraying unit 225 of the condenser 180 and the cooling water spraying unit 225 of the absorber 130, and the cooling water is supplied to the cooling water circulation pump 235 and the cooling water distribution pipe 227. The water is sprayed onto the condensation heat pipe 181 and the absorption heat pipe 131 through the plurality of water spray nozzles 229. On each outer side of the casing 210 in which the condensation heat pipe 181 and the absorption heat pipe 131 are disposed, an air supply port 213 is provided for introducing cooling air from the outside, and thus the condensation heat pipe 181 and the absorption heat pipe 131 are provided. Cooling water sprayed on the surface and cooling air flowing from the air supply port 213 cross flow, and remove the condensation of the refrigerant vapor and the refrigerant vapor absorption heat flowing in the condensation heat pipe 181 and the absorption heat pipe 131, respectively. To evaporative heat exchange.

An eliminator 231 is provided between the condensation heat transfer pipe 181 and the absorption heat transfer pipe 131 and the exhaust port 215 to recover the scattering droplets generated from the high-temperature and high-humidity air discharged by evaporative cooling into the casing 210. .

As a representative example of the fourth embodiment described above, the exhaust port 215 and the blowing fan 217 are provided in the upper central region of the casing 210 between the condenser 180 and the absorber 130, but the regenerator 150 The exhaust port 215 and the blowing fan 217 may be configured in the central portion of the side of the casing 210 between the evaporator 110 and the evaporator 110.

On the other hand, Figure 6 is a flow chart of the operation of the absorption chiller according to the embodiments of the present invention. Referring to the drawings, the wet and dry operation of the absorption chiller according to the present invention will be described as follows.

First, when the control unit 247 of the absorption type cold and hot water heater is operated by operation, the boiler 159, the cold water circulation pump 114, the refrigerant circulation pump 117, the solution circulation pump 145, the heat source circulation pump 157, and a blowing fan ( 217, the blowing fan 217, the cooling water circulation pump 235, etc. are operated based on the operation sequence.

At this time, the blowing fan 217 is driven at full speed by the signal of the control unit 247, the outside air temperature around the cooling unit 200 sensed by the cooling air temperature sensor 241, that is, the cooling unit If the detected temperature of the cooling air flowing into the 200 is greater than the set temperature, the blowing fan 217 continuously operates at full speed, and if the detected outside temperature is lower than the set temperature, the blowing fan 217 is the control unit 247. The shifting operation is performed by the signal of. When the detected outside temperature is higher than the set temperature again, the blowing fan 217 continuously operates at full speed until the outside temperature sensed by the signal of the controller 247 is lower than the set temperature.

On the other hand, the cooling water circulation pump 235 is the temperature of each of the condensate and the rare solution detected from the condensate temperature sensor 243 configured in the condenser 181 and the rare solution temperature sensor 245 configured in the absorber 130 is set. If the temperature is lower than the cooling water circulation pump 235 is stopped by the signal of the control unit 247 to stop the cooling water circulation, the cooling unit 200 is switched to dry operation, the temperature of each measured condensate and rare solution Is higher than the set temperature, the cooling water circulation pump 235 operates by the signal of the controller 247 to circulate the cooling water, and the cooling unit 200 is switched to the wet operation.

In the above-described embodiments, the wet and dry combined cooling unit is applied as an example of an absorption cold / hot water machine as a representative example, but is also applied to an absorption freezer having no heating function.

In addition, in the above-described embodiments as a representative example, the wet and dry combined use of the cooling unit for the single-effect absorption cold and hot water is shown and described above, but is applied to the dual-effect absorption cold and hot water heater or the absorption heat pump is a matter of course.

The refrigerant in the water above in the foregoing embodiments (H ₂ O) and the absorption liquid of lithium bromide (LiBr) for addition to an absorption cold or hot water generating machine coolant is ammonia (NH ₃₎ used as an absorbing solution in water absorption cold or hot water generating machine using the (H ₂ O) The application of absorption cold and hot water using other media is also included in the present invention.

In addition, in the above-described embodiments, the evaporator and the regenerator are illustrated in a substantially rectangular structure, but may be applied in various shapes and structures.

In the above embodiments, the shape and structure of the condenser and absorber shown and described above can also be applied to other forms and structures.

Further, in the above-described embodiments, the cooling fins are formed on the condensation heat pipe and the absorption heat pipe, but the condensation heat pipe and the absorption heat pipe without the cooling fins or the plate-shaped condensation heat exchanger and the absorption heat exchanger may also be applied.

In the above-described embodiments, although not shown and not described above, the condenser and the absorber may be installed in the condenser and the absorber to prevent freezing at the atmospheric temperature of the freezing point.

Therefore, the absorption type cold and hot water machine according to the present invention can selectively operate the cooling unit 200 wet and dry according to the temperature of the cooling air and the temperature of the condensate and the rare solution, it is possible to reduce the cooling water consumption and operating costs.

In this way, the cooling unit accommodating the condenser and the absorber, the evaporator, the solution heat exchanger and the boiler for producing the heat source are integrated to reduce the installation area and piping, and to reduce the manufacturing cost and the convenience of operation, condensation of the condenser The condensation heat of the refrigerant vapor flowing through the heat transfer tube and the absorbent liquid flowing in the absorption heat transfer tube of the absorber remove the refrigerant vapor absorption heat by mutually exchanging heat with the cooling air and cooling water flowing on the surface of the condensation heat transfer tube and the absorption heat transfer tube. In addition, the contamination of the coolant liquid and the rare solution flowing in each heat pipe can be prevented, thereby improving heat exchange efficiency and reducing operational obstacles. In addition, the cooling unit can be converted into wet and dry operation according to the cooling air temperature and the temperature change of the condensed refrigerant liquid and the concentrated liquid, thereby reducing cooling water consumption and operating cost.

As described above, according to the present invention, there is provided an absorption type cold and hot water machine capable of improving heat exchange efficiency and reducing operational obstacles. In addition, depending on the temperature of the cooling air and the temperature of the condensed refrigerant liquid and the rare solution solution can be operated in the cooling unit wet and dry and the variable speed operation of the blower fan, and the absorption cold and hot water machine that can reduce the cooling water and operating costs is provided.

Claims (11)

In an absorption cold / hot water machine having an absorber, a regenerator, an evaporator, and a condenser that absorbs, regenerates, evaporates, and condenses using heat source energy, a refrigerant, and an absorbing solution, It includes a cooling unit for receiving the absorber and the condenser, The cooling unit, A casing having an air supply port and an exhaust port through which cooling air is introduced and discharged, and forming a heat exchange region therein; A blowing fan configured to discharge cooling air introduced through the air supply port to the exhaust port; A condenser accommodating part provided in the heat exchange area and having a condensation heat exchanger tube through which refrigerant vapor generated from the regenerator flows, and accommodating the refrigerant vapor by exchanging heat with cooling air and cooling water; It is provided in the heat exchange area, and has an absorption heat pipe for absorbing the refrigerant vapor generated in the evaporator flows the rare solution absorbing the refrigerant vapor, the absorber for removing the heat of absorption of the refrigerant vapor by heat exchange with the cooling air and cooling water is accommodated An absorber receiving portion; A filler for cooling the cooling water by exchanging heat with the cooling air and the cooling water; A cooling water sprinkling unit provided at an upper portion of the condenser and the absorber to sprinkle the cooling water; An eliminator for recovering water droplets scattered to the exhaust port into the casing; A water collecting tank collecting the cooling water passing through the condenser, the absorber and the filler; And a cooling water circulation pump circulating the cooling water in the water collection tank to the cooling water spraying unit. The method of claim 1, A cooling air temperature sensor for sensing a temperature of cooling air supplied into the casing; A condensate temperature sensor for sensing a temperature of the condensed refrigerant liquid flowing from the condenser toward the evaporator; A rare solution temperature sensor for sensing a temperature of the rare solution flowing from the absorber to the regenerator; And a control unit for controlling the operation of the blower fan and the cooling water circulation pump according to the signals sensed by the cooling air temperature sensor, the condensate temperature sensor, and the rare solution temperature sensor. The method of claim 2, The control unit operates the blower fan at full speed when the temperature detected by the temperature sensor of the cooling air is higher than a set temperature, and decelerates the blower fan when the temperature is low, and detects each of the condensate temperature sensor and the rare solution temperature sensor. When the temperature is higher than the respective set temperature, the wet operation is performed, and when the temperature is low, the absorption cold and hot water heater, characterized in that the operation of the cooling water circulation pump is stopped and switched to dry operation. The method of claim 1, Cooling air and cooling water flowing in the cooling unit is absorption cold and hot water heater, characterized in that consisting of any one of the flow of the counter flow, cross flow. The method of claim 1, Absorption type cold and hot water heater, characterized in that the condensation heat pipe and the absorption heat pipe is provided with a cooling fin. The method of claim 1, An air supply duct coupled to the air supply port to guide the flow of cooling air flowing into the air supply port; And an exhaust duct coupled to the exhaust port to guide the flow of cooling air discharged to the outside. The method of claim 1, The upper end of the condenser communicates in the vertical direction and is coupled to the lower end of the regenerator. The heat exchanger is coupled to the heat exchanger in a horizontal direction with both sides as headers in the open heat exchange area of the condenser. Absorption cold water heater characterized in that it accommodates. The method of claim 7, wherein The upper end of the absorber communicates in the vertical direction and is coupled to the lower end of the evaporator. The heat exchanger is coupled to the heat exchanger in a horizontal direction with both sides as headers in the opened heat exchange area of the absorber. Absorption cold water heater characterized in that it accommodates. The method of claim 1, The regenerator and the condenser communicate with each other in a horizontal direction, and the heat exchanger tube is coupled in a horizontal direction with both sides as headers in an open heat exchange area of the condenser. Absorption chiller. The method of claim 9, The evaporator and the absorber are coupled in communication in the horizontal direction, and the heat exchanger tube is coupled in the horizontal direction with both sides as headers in the opened heat exchange area of the absorber. Absorption chiller. The method according to any one of claims 8 to 10, The condenser side cooling water collection tank and the absorber side cooling water collection tank is characterized in that the water level balance tube communicating each collection tank is configured.