CN203657273U - Heat exchange device - Google Patents
Heat exchange device Download PDFInfo
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- CN203657273U CN203657273U CN201320848130.1U CN201320848130U CN203657273U CN 203657273 U CN203657273 U CN 203657273U CN 201320848130 U CN201320848130 U CN 201320848130U CN 203657273 U CN203657273 U CN 203657273U
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Abstract
The utility model discloses a heat exchange device which consists of a closed type subsystem and an open type subsystem, wherein a first heat exchanger and a second heat exchanger in the closed type subsystem are connected in parallel through a pipeline; a phase change device in the open type subsystem is divided into a condensation chamber and a gasification chamber through a partition plate and a steam louver; a liquid outlet of the gasification chamber is connected with a pump and a nozzle of a jet device in sequence; a negative pressure cavity of the jet device is connected with a steam outlet of the condensation chamber; a liquid steam sprayer is mounted above the gasification chamber; an inlet of the liquid steam sprayer is connected with an outlet of a heating device; a liquid inlet of the heating device is connected with a heat exchange tower; a liquid steam outlet of the jet device is connected with a non-sealed spraying box; a liquid outlet of the spraying box is connected with a liquid sprayer mounted in the heat exchange tower; the first heat exchanger is mounted in the condensation chamber, and the second heat exchanger is mounted below the liquid sprayer in the heat exchange tower; a liquid level sensor is mounted in the gasification chamber; the liquid level sensor in the gasification chamber controls the working state of the heating device.
Description
Technical field
The utility model relates to a kind of heat-exchange system that can make full use of liquid vapour latent heat and sensible heat.
Background technology
Along with the continuous growth of the size of population and economic developing rapidly, aggravate consumption and the exhaustion of fossil energy, also brought compared with severe contamination and destruction to environment simultaneously.For this reason, people are just to make great efforts greatly to find the outlet of the energy: the one, save the energy, and the 2nd, tap a new source of energy.Up to the present, power-saving technology take the first law of thermodynamics as basis, is set about from amount aspect on the one hand, reduces various losses and waste; From the second law of thermodynamics, set about research from the aspect of matter on the other hand, utilize low-phase energy (air, soil, water, solar energy, industrial waste heat etc.) to replace a part of high-order energy (coal, oil, electric energy), to save the high-order energy.Therefore, utilize the heat pump techniques of low-phase energy to attract people's attention.
The Energy Efficiency Ratio of heat pump and environment temperature are directly to have relation, if the water of heating uniform temp, be directly proportional to environment temperature, environment temperature more high efficiency is also higher, environment temperature is more inefficient also lower, simultaneously the charging amount of cold-producing medium number, air-breathing, delivery temperature is all the main cause that directly affects efficiency.Utilize a small amount of high-grade electric energy as drive energy, from low-temperature heat source efficient absorption low grade heat energy and be transferred to high temperature heat source, reached the object of " pump heat ".Heat pump techniques is also a kind of technology that improves energy grade, and it is not the process of power conversion, is not subject to the restriction of the energy conversion efficiency limit 100%, but is subject to the restriction of contrary Carnot's cycle efficiency.Its efficiency COP refers to quantity of heat production and input electric energy relatively.Its theoretical efficiency is (operating temperature+273)/temperature rise △ T.When 25 ℃ of operating temperatures, when △ T is 20 ℃, theoretical heating efficiency just can reach COP=15.But in the middle of reality, motor efficiency=0.95, compressor efficiency=0.8, heat exchanger efficiency=0.9, system effectiveness=0.8, gross efficiency is 0.95 × 0.8 × 0.9 × 0.8=0.55.COP reality=15 × 0.55=8.25.Drop in other words the electric energy of 1KW and carry heat energy, when 25 ℃ of operating temperatures, when △ T is 20 ℃, the highest heat that can carry 8.25KW.
But different from the situation of air source heat pump manufacturing enterprise fast development, air source heat pump is unsatisfactory in the application feature of China.For a long time, the southern areas such as an air source heat pump Guangdong in China, Fujian, Zhejiang, Hunan, Jiangxi, Yunnan have obtained some application, and its situation of promoting at northern area is not fully up to expectations.To this, insider points out, under cold climate, is easy to occur the phenomenon of frosting on the unit coil pipe of air source heat pump, and this normal heat supply to whole net for air-source heat pump units is extremely unfavorable.Want to promote the application of air source heat pump at northern area, must solve in time net for air-source heat pump units coil pipe easy this problem of frosting under low temperature environment.But the defrost effect of several defrost technology that adopt in China's net for air-source heat pump units is at present not ideal greatly.
Data according to the large market of air conditioner refrigerating is understood, and the defrost technology adopting in air source heat pump at present mainly contains three kinds: the reverse defrost of cross valve, hot-gas bypass defrost, electrical heating defrost.With regard to applicable cases, utilize this technology of the reverse defrost of cross valve to carry out the product of defrost relatively many.Although the defrost effect of the reverse defrost of cross valve is better, while utilizing this kind of technology to carry out defrost, the compressor of air source heat pump stops heat supply, oppositely does refrigeration entry into service, therefore system heating load is obviously affected.Through relevant test, the heat loss causing while adopting this technology to carry out defrost accounts for 10.2% of air source heat pump total energy consumption loss.This defrost technology also easily causes " liquid hammer " simultaneously, very unfavorable to the normal use of compressor.
In addition, adopt the enterprise of this technology of hot-gas bypass defrost also many.Although the impact that this technology causes whole air source heat pump system is smaller, security is corresponding higher, and its maximum drawback is that the effect of defrost is thorough not.
For above two kinds of technology, the utility ratio of this technology of electrical heating defrost is lower.Although its actual defrost effect is ideal, adopt electrical heating defrost need to use electric heating tube, this increases the energy consumption of air source heat pump, and then its energy-conservation advantage has not been existed.In addition, the service life of electric heating tube is limited, and has the overheated possibility on fire that causes, and also has hidden danger aspect security.
Except above technology, there is very much the technology of new meaning although also proposed maximum average this class of heating load control defrost in some documents, these technology also rest on theoretical research stage at present mostly, and practical application example is little.So far also effectively do not solved just because of net for air-source heat pump units coil pipe easy this problem of frosting under low temperature environment, so the manufacturer of many air source heat pumps is all secretive for this problem of air source heat pump defrost poor effect.Because the air source heat pumps energy-saving that this phenomenon is external publicized with it, environmental protection, safety, image that can round-the-clock use are conflicting.
It is reported, the manufacturing enterprise of some air source heat pumps is making some progress aspect the defrost of air source heat pump at present, improved air source heat pump product can normally use under the environment of subzero 15 degrees Celsius, can adapt to the weather of most area.But this is for the extremely northern area of severe cold in winter, also slightly inadequate, need further improvement.In a word, not ideal enough having become of defrost effect restricts the key factor that air source heat pump is promoted in China on a large scale, is also " weakness " that numerous manufacturing enterprise had to overcome.Especially China's part also rests on and utilizes nature fossil energy to do the main resource means of heating, this administers haze weather for China very bad impact, how we look for another way is gone to solve the problem of this heating needle-holding hand, is also to administer the problem that China's haze weather stands in the breach.
In air, itself just contains huge heat energy in fact, especially the latent heat of steam also can not be despised, how we remove to develop air can, scientific worker has also done a large amount of trials, if any a kind of heat source tower, it utilizes air can carry out heating, but the existing drawback of existing heat source tower is also very many, non freezing solution can constantly absorb airborne steam in carrying out energy exchange processes with air, thereby non freezing solution concentration is declined, if do not concentrated, its freezing point will raise, even can cause situation about cannot move, certainly will be increased energy input if concentrated, Energy Efficiency Ratio also can decline.Have in view of that, the utility model patent has adopted does not affect concentrated effect, do not lose the way of steam latent heat yet, adopt injection injection principle to evaporate in lower temperature situation by non freezing solution, and vaporized steam, in heat exchanger, be condensed into again aqueous water, the latent heat of its condensation has fed back to the non freezing solution of heat exchanger inside again, reach perfect absorption water in air vapour latent heat object, and the steam latent heat getting unlike existing heat source tower handle, in non freezing solution concentration process, abandon in vain again, and to lose concentrated energy consumption, really lose more than gain.
In air, thermal source is what many, and that is endlessly, is also inexhaustible.Just how we adopt the problem that very economical means drive airborne heat energy to shift to high temperature place, and this is a huge problem, is also the problem that is worth going into seriously.
What existing heat source tower was discharged is steam, and it is to lose after having got it to airborne steam latent heat, do not made full use of, and it concentrates and also will consume a part of heat energy non freezing solution; In the larger place of humidity, energy consumption is more, and value is less.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, provides a kind of liquid vapour latent heat can fully be utilized, move that parts are few, the heat-exchange system of stable and reliable operation.
The technical scheme that the utility model solves its technical problem employing is: a kind of heat-exchange device, formed by closed subsystem and open subsystem, a heat exchanger in described closed subsystem and No. two heat exchangers are by pipeline parallel connection, and two port A, B of described pipeline are connected with work station; Phase change device in described open subsystem is sealed body structure, adopts dividing plate and steam shutter to be divided into condensation chamber and vaporizer in it, and described dividing plate is positioned at the below of steam shutter; The be linked in sequence nozzle of pump and ejector of the liquid outlet of described vaporizer, the negative pressure cavity of described ejector connects the gas outlet of condensation chamber; Liquid vapour shower nozzle is installed in the top of vaporizer, and the entrance of liquid vapour shower nozzle connects the outlet of heater, and the liquid inlet of heater connects heat exchange tower; The liquid vapor outlet of ejector connects the jet box of non-tight formula, and the liquid outlet of jet box is mounted on the fluid jetting head in heat exchange tower; No. one heat exchanger is arranged in condensation chamber, and No. two heat exchangers are arranged on the below of the fluid jetting head in heat exchange tower; Liquid level sensor is installed in vaporizer, and the liquid level that vaporizer detected when the liquid level sensor in vaporizer is during higher than setting value, heater work, otherwise, heater stop work.
Further, the parallel entry place of a described heat exchanger and No. two heat exchangers is provided with separating liquid valve.
Further, the above and below of described condensation chamber is provided with intake valve and draining valve, and condensed water liquid level sensor is installed in condensation chamber, and the liquid level that condensed water detected when condensed water liquid level sensor is during higher than setting value, intake valve and draining valve are opened simultaneously, air inlet discharge opeing; Otherwise intake valve and draining valve are all in closed condition.
Further, the top of described fluid jetting head is provided with air exhauster, and the sidewall of heat source tower is provided with ventilating opening.
Compared with prior art, the utlity model has following advantage: (l) system flow is simple in structure, cost of investment is low; (2) operation parts are few, stable and reliable operation; (3) quality is light, volume is little, installation is simple, need not people on duty; (4) both there is no the anxiety of frosting dewfall, can make full use of again the latent heat of water in air vapour, and made its important component part as thermal source, and be not subject to condition restriction, in the very large place of humidity, more can show its superiority; (5) Energy Efficiency Ratio is high, more more economical than existing air energy heat pump, more energy-conservation; (6) liquid vapour latent heat and sensible heat can fully be utilized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
In figure: 1-separating liquid valve, 2-intake valve, heat exchanger of 3-, 4-phase change device, 5-condensation chamber liquid level sensor, 6-condensation chamber, 7-draining valve, 8-dividing plate, 9-vaporizer, 10-vaporizer liquid level sensor, 11-heater, No. bis-heat exchangers of 12-, 13-heat source tower, 14-air exhauster, 15-fluid jetting head, 16-ventilating opening, 17-jet box, 18-ejector, 19-liquid vapour shower nozzle, 20-pump, 21-steam shutter.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to accompanying drawing: the utility model is made up of closed subsystem and open subsystem; A heat exchanger 3 and No. two heat exchangers 12 in described closed subsystem adopt pipeline parallel connection, and two port A, B of pipeline are connected with work station; Phase change device 4 in described open subsystem is sealed body structure, adopts dividing plate 8 and steam shutter 21 to be divided into condensation chamber 6 and vaporizer 9 in it, and dividing plate 8 is positioned at the below of steam shutter 21; The be linked in sequence nozzle of pump 20 and ejector 18 of the liquid outlet of vaporizer 9, the negative pressure cavity of ejector 18 connects the gas outlet of condensation chamber 6; Liquid vapour shower nozzle 19 is installed in the top of vaporizer 9, and the entrance of liquid vapour shower nozzle 19 connects the outlet of heater 11, and the liquid inlet of heater 11 connects heat source tower 13; The liquid vapor outlet of ejector 18 connects jet box 17, and the liquid outlet of jet box 17 is mounted on the fluid jetting head 15 in heat source tower 13; No. one heat exchanger 3 is arranged in condensation chamber 6, and No. two heat exchangers 12 are arranged on the below of the fluid jetting head 15 in heat exchange tower 13; Steam chamber 9 interior installation vaporizer liquid level sensor 10, the liquid level that vaporizer 9 detected when vaporizer liquid level sensor 10 is during higher than setting value, and heater 11 is worked, on the contrary heater 11 quits work.
Separating liquid valve 1 is installed at the parallel entry place of a described heat exchanger 3 and No. two heat exchangers 12.
The above and below of described condensation chamber 6 arranges intake valve 2 and draining valve 7, the interior installation condensed water of condensation chamber 6 liquid level sensor 5, the liquid level that condensed water detected when condensed water liquid level sensor 5 is during higher than setting value, and intake valve 2 and draining valve 7 are opened simultaneously, air inlet discharge opeing; Otherwise intake valve 2 and draining valve 7 are all in closed condition.
Air exhauster 14 is installed in the top of described fluid jetting head 15, and ventilating opening 16 is set on the sidewall of heat source tower 13.
Described separating liquid valve 1, intake valve 2, solidifying chamber liquid level sensor 5, draining valve 7, vaporizer liquid level sensor 10, air exhauster 14, fluid jetting head 15, ejector 18, liquid vapour shower nozzle 19 and pump 20 adopt commercially available prod.Separating liquid valve 1 function is the flow for a heat exchanger 3 and No. two heat exchanger 12 distribution media.
A described heat exchanger 3, No. two heat exchangers 12 adopt air side heat exchanger finned and that can realize adverse current to carry out supporting.
The work station that described port A, B connect is one or one group of thermal energy converter.
Embodiment 1:
Two subsystems: closed subsystem and open subsystem.
A heat exchanger 3 and No. two heat exchangers 12 in closed subsystem adopt pipeline parallel connection, and two port A, B of pipeline are connected with work station.
Phase change device 4 in open subsystem is sealed body structure, adopts dividing plate 8 and steam shutter 21 to be divided into condensation chamber 6 and vaporizer 9 in it, and dividing plate 8 is positioned at the below of steam shutter 21; The be linked in sequence nozzle of pump 20 and ejector 18 of the liquid outlet of vaporizer 9, the negative pressure cavity of ejector 18 connects the gas outlet of condensation chamber 6; Liquid vapour shower nozzle 19 is installed in the top of vaporizer 9, and the entrance of liquid vapour shower nozzle 19 connects the outlet of heater 11, and the liquid inlet of heater 11 connects heat source tower 13; The liquid vapor outlet of ejector 18 connects jet box 17, and the liquid outlet of jet box 17 is mounted on the fluid jetting head 15 in heat source tower 13; No. one heat exchanger 3 is arranged in condensation chamber 6, and No. two heat exchangers 12 are arranged on the servant quarters of the fluid jetting head 15 in heat source tower 13; Liquid level sensor 10 is installed in vaporizer 9.
The liquid level that vaporizer 9 detected when vaporizer liquid level sensor 10 is during higher than setting value, and heater 11 is worked, otherwise heater 11 quits work.
After port B in closed subsystem, forced circulation pump is installed, is allowed the liquid medium in closed subsystem enter a heat exchanger 3 and No. two heat exchangers 12 from port A shunting, then gone out by port B.In the present embodiment, the liquid medium flowing through in a heat exchanger 3 and No. two heat exchangers 12 does not have artificial intervention.
Embodiment 2:
On the basis of embodiment 1, at the parallel entry place of a heat exchanger 3 and No. two heat exchangers 12, separating liquid valve 1 is installed.In the present embodiment, the liquid medium flowing through in a heat exchanger 3 and No. two heat exchangers 12 is by separating liquid valve 1 pro rate.
Embodiment 3,4:
Respectively on the basis of embodiment 1,2, intake valve 2 and draining valve 7 are set in the above and below of condensation chamber 6, the interior installation condensed water of condensation chamber 6 liquid level sensor 5, the liquid level that condensed water detected when condensed water liquid level sensor 5 is during higher than setting value, intake valve 2 and draining valve 7 are opened simultaneously, air inlet discharge opeing; Otherwise intake valve 2 and draining valve 7 are all in closed condition.
Embodiment 5-8:
On the basis of embodiment 1-4, air exhauster 14 is installed above fluid jetting head 15 respectively, and on the sidewall of heat source tower 3, ventilating opening 16 is set.
The utility model is applicable to heating, health hot water processed.
Theoretical foundation of the present utility model: by the latent heat of a subsystem or/and the thermal energy transfer of sensible heat to another one subsystem, is accepted the subsystem of heat energy works in sensible heat mode.
Operation principle: when heater 11 is worked, the hot non freezing solution of its generation is or/and steam enters vaporizer 9 by liquid vapour shower nozzle 19, the hot non freezing solution of part is in the interior vaporization of vaporizer 9, steam in vaporizer 9 enters condensation chamber 6 by steam shutter 21, and high temperature heat is passed to heat exchanger 3 No. one with the form of latent heat; Pump 20 is sent into the non freezing solution of not vaporizing in vaporizer 9 at the nozzle of ejector 18, the steam of condensation chamber 6 is connected to the negative pressure cavity of ejector 18 by pipeline, when the nozzle ejection non freezing solution of ejector 18, condensation chamber 6 is caused certain vacuum environment by the negative pressure of the negative pressure cavity of ejector 18, and its object is exactly in order to utilize pressure reduction to make steam that vaporizer produces to condensation chamber 6 diffluences; The liquid vapor outlet of ejector 18 is ejected into liquid vapour in jet box 17, and the liquid outlet of jet box 17 is mounted on the fluid jetting head 15 in heat source tower 13; Outer wall with the non freezing solution spray in jet box 17 to No. two heat exchangers 12, that is: two systems are all with the mode transferring heat energy of sensible heat.
Claims (5)
1. a heat-exchange device, it is characterized in that: formed by closed subsystem and open subsystem, a heat exchanger (3) in described closed subsystem and No. two heat exchangers (12) are by pipeline parallel connection, and two port A, B of described pipeline are connected with work station; Phase change device (4) in described open subsystem is sealed body structure, adopts dividing plate (8) and steam shutter (21) to be divided into condensation chamber (6) and vaporizer (9) in it, and dividing plate (8) is positioned at the below of steam shutter (21); The be linked in sequence nozzle of pump (20) and ejector (18) of the liquid outlet of described vaporizer (9), the negative pressure cavity of ejector (18) connects the gas outlet of condensation chamber (6); The top of vaporizer (9) is provided with liquid vapour shower nozzle (19), and the entrance of described liquid vapour shower nozzle (19) connects the outlet of heater (11), and the liquid inlet of described heater (11) connects heat source tower (13); The liquid vapor outlet of described ejector (18) connects jet box (17), and the liquid outlet of described jet box (17) is mounted on the fluid jetting head (15) in heat exchange tower (13); A described heat exchanger (3) is arranged in condensation chamber (6), and No. two heat exchangers (12) are arranged on the below of the fluid jetting head (15) in heat source tower (13); Vaporizer liquid level sensor (10) is installed in described vaporizer (9), the liquid level that vaporizer (9) detected when vaporizer liquid level sensor (10) is during higher than setting value, described heater (11) work, on the contrary described heater (11) quits work.
2. system according to claim 1, is characterized in that: the parallel entry place of a described heat exchanger (3) and No. two heat exchangers (12) is provided with separating liquid valve (1).
3. system according to claim 1 and 2, it is characterized in that: the above and below of described condensation chamber (6) arranges respectively intake valve (2) and draining valve (7), condensed water liquid level sensor (5) is installed in described condensation chamber (6), the liquid level that condensed water detected when condensed water liquid level sensor (5) is during higher than setting value, described intake valve (2) and draining valve (7) are opened simultaneously, air inlet discharge opeing; Otherwise described intake valve (2) and draining valve (7) are all in closed condition.
4. system according to claim 1 and 2, is characterized in that: the top of described fluid jetting head (15) is provided with air exhauster (14), and on the sidewall of heat source tower (13), ventilating opening (16) is set.
5. system according to claim 3, is characterized in that: the top of described fluid jetting head (15) is provided with air exhauster (14), and on the sidewall of heat source tower (13), ventilating opening (16) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848130.1U CN203657273U (en) | 2013-12-20 | 2013-12-20 | Heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848130.1U CN203657273U (en) | 2013-12-20 | 2013-12-20 | Heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657273U true CN203657273U (en) | 2014-06-18 |
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ID=50923654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848130.1U Withdrawn - After Issue CN203657273U (en) | 2013-12-20 | 2013-12-20 | Heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673396A (en) * | 2013-12-20 | 2014-03-26 | 湖南创化低碳环保科技有限公司 | Heat exchange system |
-
2013
- 2013-12-20 CN CN201320848130.1U patent/CN203657273U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673396A (en) * | 2013-12-20 | 2014-03-26 | 湖南创化低碳环保科技有限公司 | Heat exchange system |
| CN103673396B (en) * | 2013-12-20 | 2015-11-18 | 湖南创化低碳环保科技有限公司 | Heat-exchange system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |