CN203550277U - Indirect evaporation coupling solar cold and hot combined supplying system for rural family - Google Patents

Abstract

The utility model discloses a rural household indirect evaporation coupling solar cooling and heating combined supply system; it includes a solar water heating subsystem, a solar adsorption refrigeration subsystem and an indirect evaporation cooling subsystem; Bed, coil heat exchanger, tap water supply pipe, hot water storage tank, waste water drain pipe, hot water outlet pipe and auxiliary heater; solar adsorption refrigeration subsystem includes condenser, liquid receiver, evaporator, chilled water Water storage tank, air-chilled water partition wall heat exchanger, air-conditioning intake pipe, solar heat collection adsorption bed and coil heat exchanger; indirect evaporative cooling subsystem includes primary air intake pipe, secondary air intake pipe, exhaust pipe, Air-water mixing heat exchanger, air-air heat exchanger, air-water partition wall heat exchanger; the utility model utilizes solar energy and evaporative refrigeration to achieve energy saving and environmental protection, and can provide hot water and frozen water to meet the needs of users. Various needs such as supply and air conditioning supply.

Description

Rural Household Indirect Evaporation Coupled Solar Cooling and Heating System

technical field

The utility model relates to a solar energy system, in particular to a rural household indirect evaporation coupling solar cooling and heating combined supply system.

Background technique

With the continuous development of the rural economy, the living standards of farmers have been greatly improved, and the quality of life has also been greatly improved. With the introduction of a series of policies to benefit farmers, such as "home appliances to the countryside", the popularity of refrigerators, air conditioners and other home appliances in rural households has reached an unprecedented level. But then there is a common situation of overloading electricity in rural areas. Especially in the hot high temperature season, there is a phenomenon that the air conditioner in the home cannot be started due to the overload of electricity consumption.

Based on the current situation of rural electricity consumption, especially when it comes to the supply of cold and hot water for air conditioners, in actual use, the majority of rural users are still keen to use solar energy to drive air conditioners for cooling, use solar energy for hot water supply and use indirect evaporative cooling coupled with solar adsorption In view of this situation, through the development and effective utilization of natural energy, on the basis of the existing research on solar refrigeration and direct evaporative cooling, the air-conditioning treatment methods of solar adsorption refrigeration and indirect evaporative cooling have formed a new It is very necessary to develop a new combined cooling and heating system especially suitable for rural residential air-conditioning cooling and hot water supply. On the one hand, solar energy is used to achieve energy saving and environmental protection; on the other hand, evaporative cooling is used to provide chilled water for air conditioning and domestic hot water, making it suitable for exclusive single-family homes in rural areas, both in winter and in summer. Therefore, to build a new solar cooling Cogeneration system, no matter from the perspective of environmental protection or comprehensive utilization of energy, has broad application prospects, and will certainly bring new highlights to the promotion and application of rural household appliances.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide an energy-saving, environment-friendly and convenient rural household indirect evaporation coupling solar cooling and heating system.

The technical scheme adopted by the utility model to solve the problems of the prior art is: a rural household indirect evaporation coupling solar energy combined cooling and heating system, which includes:

A solar water heating subsystem, the solar water heating subsystem includes a solar heat collection adsorption bed, a coil heat exchanger, a tap water supply pipe, a hot water storage tank, a waste water drainage pipe and a hot water outlet pipe;

Wherein, the coil heat exchanger is built in the solar heat collecting adsorption bed, and the water inlet end of the coil heat exchanger is connected to the tap water supply pipe through a valve A, and the water outlet end is connected to the tap water supply pipe through a valve B all the way. The hot water storage tank is connected, and one way is connected with the waste water drainage pipe through a valve C; the outlet end of the hot water storage tank is connected with the hot water outlet pipe through a valve D;

The solar adsorption refrigeration subsystem, the solar adsorption refrigeration subsystem includes a condenser, a liquid storage device, an evaporator, a chilled water storage tank, an air-frozen water partition heat exchanger, an air-conditioning intake pipe and the solar heat collector adsorption bed;

Wherein, the output end of the solar heat-collecting adsorption bed is connected to the condenser and the liquid reservoir in turn through a valve E, the liquid reservoir is connected to the evaporator through a valve F, and the evaporator is connected to the evaporator through A valve G is connected to the input end of the solar heat collection adsorption bed; the frozen water storage tank is integrated with the evaporator through a concave-convex partition, and the frozen water storage tank is connected through a pump A The circulating pipeline is connected to the air-chilled water partition heat exchanger; the air-chilled water partition heat exchanger is connected to the air-conditioning intake pipe through a fan A, and the air-chilled water partition heat exchanger is connected to the A water adding pipe is also connected between the water pumps A.

The above technical scheme is further elaborated below:

Preferably, it also includes: an indirect evaporative cooling subsystem comprising a primary air intake duct, a secondary air intake duct, an exhaust duct, an air-water mixing heat exchanger, an air-air heat exchanger , Air-water partition wall heat exchanger;

Wherein, the primary air intake pipe is connected to the air-air heat exchanger, the air-air heat exchanger is connected to the air-water partition heat exchanger, and the air-water partition heat exchanger passes through A valve H is connected to the fan A, and one way is connected to the air-chilled water partition heat exchanger through a valve I; the secondary air intake pipe is connected to the air-water mixing heat exchanger through a fan B , the air-water mixing heat exchanger is connected to the exhaust pipe through the air-air heat exchanger all the way, and is connected to the air-water partition wall heat exchanger through a circulation pipeline with a water pump B and a valve J all the way. and the water inlet end of the air-water mixing heat exchanger is connected to the tap water supply pipe through a valve K, and the circulation pipe with the water pump B and the valve J is also provided with a one-way valve.

Preferably, the secondary air intake pipe includes an air intake pipe A for introducing air from the outside and an air intake pipe B for introducing air from an indoor exhaust port, and the air intake pipe A is connected to the fan B through a valve L The inlet pipe B is connected with the blower B through a valve M.

Preferably, an auxiliary heater for auxiliary heating is also provided in the hot water storage tank, and the auxiliary heater is connected to the pipeline where the valve A is located through a pipeline with a valve N.

Preferably, the solar heat-collecting adsorption bed is installed on the user's roof in a direction consistent with the user's local latitude.

Preferably, the surroundings of the coil heat exchanger are filled with adsorbent.

Preferably, the solar heat collection adsorption bed is a common device of the solar water heating subsystem and the solar adsorption cooling subsystem.

The beneficial effects of the utility model are:

First, on the one hand, the utility model utilizes solar energy to achieve energy conservation, environmental protection, and energy conservation; on the other hand, it utilizes evaporative refrigeration to provide chilled water, making it especially suitable for exclusive single courtyards in rural areas, and satisfying users' hot and cold water supply and air conditioning supply, etc. Various needs.

Second, the solar water heating subsystem, solar adsorption refrigeration subsystem and indirect evaporative cooling subsystem can operate independently or in combination according to external environmental conditions, and are suitable for all seasons in spring, summer, autumn and winter.

Third, the utility model rural household indirect evaporation coupling solar cooling and heating system mainly consists of solar heat collection adsorption bed, coil heat exchanger, hot water storage tank, auxiliary heater, condenser, liquid storage, evaporation It is composed of water tank, chilled water storage tank, air-water mixing heat exchanger, air-air heat exchanger, air-water partition heat exchanger and air-chilled water partition heat exchanger. It is very convenient to install and use. The whole system In addition to the water pump and fan, there are no other high-power moving parts, making full use of new energy, less energy consumption in operation, high efficiency and energy saving, and easy maintenance.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the present utility model;

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Among them, the solar heat collection adsorption bed 101; coil heat exchanger 102; tap water supply pipe 103; hot water storage tank 104; waste water drainage pipe 105; hot water outlet pipe 106; valve A107; valve B108; valve C109; ; Auxiliary heater 111; Valve N112;

Condenser 201; Liquid storage device 202; Evaporator 203; Chilled water storage tank 204; Air-chilled water partition wall heat exchanger 205; Air conditioner intake pipe 206; Valve E207; Valve F208; Valve G209; A211; fan A212; water pipe 213;

Primary air intake pipe 301; secondary air intake pipe 302; exhaust pipe 303; air-water mixing heat exchanger 304; air-air heat exchanger 305; air-water partition heat exchanger 306; valve H307; valve I308; Fan B309; water pump B310; valve J311; valve K312; one-way valve 313; valve L314; valve M315; air intake pipe A3021; air intake pipe B3022.

Detailed ways

The technical solution of the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to understand the essence of the utility model more clearly and intuitively.

As shown in Figure 1, the utility model provides a rural household indirect evaporation coupled solar heating and cooling system, which includes three parts: solar water heating subsystem, solar adsorption cooling subsystem and indirect evaporative cooling subsystem.

Wherein, the solar hot water subsystem includes a solar heat collection adsorption bed 101, a coil heat exchanger 102, a tap water supply pipe 103, a hot water storage tank 104, a hot water outlet pipe 105 and a waste water drainage pipe 106;

The coil heat exchanger 102 is built in the solar heat collection adsorption bed 101, the water inlet end of the coil heat exchanger 102 is connected to the tap water supply pipe 103 through a valve A107, and the water outlet end passes through a valve B108 all the way. It is connected with the hot water storage tank 104, and one way is connected with the waste water discharge pipe 105 through a valve C109; the outlet end of the hot water storage tank 104 is connected with the hot water outlet pipe 106 through a valve D110;

Secondly, the solar adsorption refrigeration subsystem includes a condenser 201, a liquid storage device 202, an evaporator 203, a chilled water storage tank 204, an air-chilled water partition heat exchanger 205, an air-conditioning intake pipe 206 and the solar collector thermal adsorption bed 101;

It should be noted that the output end of the solar heat collection adsorption bed is connected to the condenser 201 and the liquid storage device 202 in turn through a valve E207, and the liquid storage device 202 is connected to the evaporator 203 through a valve F208 , and the evaporator 203 is connected to the input end of the solar heat collection adsorption bed through a valve G209; the chilled water storage tank 204 is integrated with the evaporator 203 through a concave-convex partition 210, and the The chilled water storage tank 204 is connected to the air-chilled water partition heat exchanger 205 through a circulation pipeline with a water pump A211; the air-chilled water partition heat exchanger 205 is connected to the air-conditioning intake pipe through a fan A212 206, and a water adding pipe 213 is also connected between the air-chilled water partition wall heat exchanger 205 and the water pump A211.

Again, the indirect evaporative cooling subsystem includes a primary air intake pipe 301, a secondary air intake pipe 302, an exhaust pipe 303, an air-water mixing heat exchanger 304, an air-air heat exchanger 305, and an air-water partition wall exchange Heater 306;

Wherein, the primary air intake pipe 301 is connected to the air-air heat exchanger 305, the air-air heat exchanger 305 is connected to the air-water partition heat exchanger 306, and the air-water partition The heater 306 is connected to the fan A212 through a valve H307, and is connected to the air-chilled water partition heat exchanger 205 through a valve I308; the secondary air inlet pipe 302 is connected to the air fan B309 through a fan B309. - The water mixing heat exchanger 304 is connected, and the air-water mixing heat exchanger 304 is connected to the exhaust pipe 303 through the air-air heat exchanger 305, and a circulation with a water pump B310 and a valve J311 is passed all the way The pipeline is connected to the air-water partition wall heat exchanger 306, and the water inlet end of the air-water mixing heat exchanger 304 is connected to the tap water supply pipe 103 through a valve K312, and the water pump B310 and valve The circulation pipeline of J311 is also provided with a one-way valve 313 .

It should be noted that the secondary air intake pipe 302 includes an air intake pipe A3021 for introducing air from the outside and an air intake pipe B3022 for introducing air from an indoor exhaust port, wherein the air intake pipe A3021 passes through a valve L314 It is connected with the fan B309, and the inlet pipe B3022 is connected with the fan B309 through a valve M315.

It should be emphasized that the hot water storage tank 104 is also provided with an auxiliary heater 111 for auxiliary heating, and the auxiliary heater 111 is connected to the pipeline where the valve A107 is located through a pipeline with a valve N112.

In this embodiment, in order to better absorb the heat of the sun, the solar heat collection adsorption bed 101 is installed on the user's roof in the direction consistent with the user's local latitude during specific installation, and the coil heat The surroundings of the changer 102 are filled with adsorbent.

Through the above-mentioned rural household indirect evaporation coupling solar energy combined cooling and heating system described in the utility model, it can be seen that the solar heat collecting adsorption bed 101 is a combination of the solar water heating subsystem and the solar adsorption refrigeration system. Common equipment for subsystems.

In order to facilitate a more thorough understanding of the working principle of the utility model, a further brief description will be given of the rural household indirect evaporation coupled solar cooling and heating system shown in Figure 1. The specific implementation of the utility model is as follows:

Firstly, the solar heat collection adsorption bed 101 is installed on the roof of the user in the same direction as the user's local latitude, and the coil heat exchanger 102 in the solar heat collection adsorption bed 101 is filled with adsorbents, which undertakes the solar energy adsorption. The role of the adsorption bed in the refrigeration subsystem.

1. Part of the solar water heating subsystem

The solar hot water subsystem part is mainly composed of solar heat collection adsorption 101, built-in coil heat exchanger 102, hot water storage tank 104, and auxiliary heater 111 placed in the hot water storage tank 104. The heat exchanger 102 absorbs the heat of the sun through the solar heat collection adsorption bed 101, and converts the solar energy into thermal energy. After the water in the coil heat exchanger 102 becomes hot, the hot water can be delivered to the hot water storage by opening the valve B108 tank 104, the user opens the valve D110 to use hot water through the hot water outlet pipe 106, and at the same time, opens the valve A107 to continuously add water to the coil heat exchanger 102 through the tap water supply pipe 103, and secondly, the coil One end of the heat exchanger 102 is also connected with a waste water drain pipe 105. Meanwhile, when it rains continuously and there is no solar energy supply, by turning on the auxiliary heater 111, hot water can also be provided for the majority of users.

Therefore, the solar water heating subsystem can operate independently, regardless of spring, summer, autumn and winter, and can provide users with hot water even in the absence of solar energy.

2. Part of the solar adsorption refrigeration subsystem

The solar adsorption refrigeration subsystem is mainly composed of a solar adsorption bed 101, a coil heat exchanger 102, a condenser 201, a liquid receiver 202, an evaporator 203, a frozen water storage tank 204, and an air-frozen water partition heat exchanger 205. It should be noted that there is a concave-convex partition 210 between the chilled water storage tank 204 that provides chilled water for the air-chilled water heat exchanger 205 and the evaporator 203. The contact area between the chilled water cold storage tank 204 and the evaporator 203 is increased, so that the heat exchange effect between the two is better. The solar adsorption refrigeration subsystem is already a very mature prior art. In this embodiment, the chilled water storage tank 204 is connected to the air-chilled water partition wall heat exchanger through a circulation pipeline with a water pump A211 205, and between the circulation pipeline with water pump A211 and the air-chilled water partition heat exchanger 205, a water adding pipe 213 is added, through which the water adding pipe 213 can intermittently serve as the chilled water storage tank 204 water supply.

Therefore, the solar adsorption refrigeration subsystem can also operate independently to provide cooling for users independently, and output the cold air from the air-conditioning inlet pipe 206. At the same time, through the control of various pipes and valves, the solar adsorption refrigeration subsystem can also be connected with The solar hot water subsystems work together to provide users with cooling and heating at the same time.

3. Part of the indirect evaporative cooling subsystem

The indirect evaporative cooling subsystem is mainly composed of an air-water mixing heat exchanger 304; an air-air heat exchanger 305; and an air-water partition wall heat exchanger 306. - The air of the air heat exchanger 305 can be introduced in the outdoor environment, or the room return air, or a mixture of the two, and the air entering the air-water mixing heat exchanger 304 from the secondary air inlet pipe 302 can be The outdoor air is directly introduced from the air intake pipe A3021, or the indoor air discharged from the indoor exhaust pipe is introduced from the air intake pipe B3022.

It should be emphasized that the air entering the secondary air intake pipe 302 is selective. By comparing the relative humidity of the outdoor air and the indoor exhaust air, it is determined whether the secondary air is provided by the intake pipe A3021 or the intake pipe B3022 to provide.

The air that enters from the secondary air intake pipe 302 is delivered to the air-air heat exchanger 305 after being cooled and humidified by the air-water mixing heat exchanger 304. At this time, the air that enters from the primary air intake pipe 301 and the The cooled and humidified secondary air in the air-air heat exchanger 305 performs heat exchange. At this time, the discarded secondary air is discharged from the exhaust pipe 303, and the heat-exchanged primary air enters the air-water wall exchange. Heater 306 performs heat exchange again. If the primary air treated twice can meet the air-conditioning conditions, open the valve H307 and it can be directly sent into the air-conditioning inlet pipe 206 through the fan A212 to reach the room. If the air-conditioning conditions cannot be met, it needs to pass through the air- After further cooling by the chilled water heat exchanger 205, it is sent into the air-conditioning inlet pipe 206 through the fan A212, and then reaches the room, or after being mixed by both, it is sent into the air-conditioning inlet pipe 206 through the fan A212 and then sent into the room.

It should be noted that the chilled water cold storage tank 204 that provides chilled water for the air-chilled water heat exchanger 205 exchanges heat with the evaporator 203 through the concave-convex partition 210, and the evaporator 203 is produced in the adsorption refrigeration system. Devices with cooling effect. In this way, the indirect evaporative cooling subsystem and the solar adsorption refrigeration subsystem can respectively send the cooled air into the room, that is, while the two can operate independently, they can also operate jointly. Through joint operation, the energy can be brought To achieve a better cooling effect, especially in hot summer, when the two alone cannot meet the required air conditioning conditions, the combined operation of the two can meet the user's air conditioning requirements. Moreover, the indirect evaporative cooling subsystem, through the control of various pipes and valves, can also operate jointly with the solar water heating subsystem to provide users with cooling and heating at the same time.

In summary, the rural household indirect evaporation coupling solar cooling and heating system of the utility model, the solar hot water subsystem, solar adsorption refrigeration subsystem and indirect evaporative cooling subsystem can operate independently and can be combined according to external environmental conditions Running, all seasons are applicable in spring, summer, autumn and winter. The matched subsystems and their equipment are assembled and connected through pipes and valves, so that the utility model can realize independent hot water supply by solar heat collection, independent cooling by solar adsorption refrigeration, independent cooling by indirect evaporative cooling, and independent cooling by solar adsorption refrigeration-indirect Multi-functional effects such as evaporative refrigeration combined with cooling and solar combined cooling and heating.

When the air conditioner is not needed in winter, only the solar hot water subsystem is used to supply hot water, and other subsystems are not in operation; when the solar heating is not enough, the auxiliary heater 111 can also be activated to provide hot water; when cooling is required in hot seasons The solar adsorption refrigeration subsystem can be used for cooling alone, or the indirect evaporative cooling subsystem can be used for cooling alone, or the solar adsorption refrigeration subsystem and indirect evaporative cooling subsystem can be combined for cooling, and hot water can also be supplied while cooling is running; In transitional seasons or when the air is particularly dry, only the indirect evaporative cooling subsystem can be used for independent cooling, and the solar water heating subsystem can be used for independent heating. The entire system realizes the conversion of heating/cooling or simultaneous hot and cold supply mode through the opening and closing of the valves of each pipeline.

In this way, on the one hand, the utility model uses solar energy to achieve energy saving, environmental protection, and energy conservation. On the other hand, it uses evaporative refrigeration to provide chilled water, making it especially suitable for exclusive single courtyards in rural areas, and meeting users' hot and cold water supply and air conditioning supply, etc. Various needs. In addition to the water pump and fan, there are no other high-power moving parts in the whole system, making full use of new energy, less energy consumption in operation, high efficiency and energy saving, and easy maintenance.

The above descriptions are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification of the utility model and the contents of the accompanying drawings may be directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (7)

1. A rural household indirect evaporation coupling solar cooling and heating system, characterized in that it includes: A solar water heating subsystem, the solar water heating subsystem includes a solar heat collection adsorption bed, a coil heat exchanger, a tap water supply pipe, a hot water storage tank, a waste water drainage pipe and a hot water outlet pipe; Wherein, the coil heat exchanger is built in the solar heat collecting adsorption bed, and the water inlet end of the coil heat exchanger is connected to the tap water supply pipe through a valve A, and the water outlet end is connected to the tap water supply pipe through a valve B all the way. The hot water storage tank is connected, and one way is connected with the waste water drainage pipe through a valve C; the outlet end of the hot water storage tank is connected with the hot water outlet pipe through a valve D; The solar adsorption refrigeration subsystem, the solar adsorption refrigeration subsystem includes a condenser, a liquid storage device, an evaporator, a chilled water storage tank, an air-frozen water partition heat exchanger, an air-conditioning intake pipe and the solar heat collector adsorption bed; Wherein, the output end of the solar heat-collecting adsorption bed is connected to the condenser and the liquid reservoir in turn through a valve E, the liquid reservoir is connected to the evaporator through a valve F, and the evaporator is connected to the evaporator through A valve G is connected to the input end of the solar heat collection adsorption bed; the frozen water storage tank is integrated with the evaporator through a concave-convex partition, and the frozen water storage tank is connected through a pump A The circulating pipeline is connected to the air-chilled water partition heat exchanger; the air-chilled water partition heat exchanger is connected to the air-conditioning intake pipe through a fan A, and the air-chilled water partition heat exchanger is connected to the A water adding pipe is also connected between the water pumps A. 2. The rural household indirect evaporation coupling solar cooling and heating system according to claim 1, characterized in that it also includes: Indirect evaporative cooling subsystem, the indirect evaporative cooling subsystem includes a primary air intake pipe, a secondary air intake pipe, an exhaust pipe, an air-water mixing heat exchanger, an air-air heat exchanger, and an air-water partition heat exchange device; Wherein, the primary air intake pipe is connected to the air-air heat exchanger, the air-air heat exchanger is connected to the air-water partition heat exchanger, and the air-water partition heat exchanger passes through A valve H is connected to the fan A, and one way is connected to the air-chilled water partition heat exchanger through a valve I; the secondary air intake pipe is connected to the air-water mixing heat exchanger through a fan B , the air-water mixing heat exchanger is connected to the exhaust pipe through the air-air heat exchanger all the way, and is connected to the air-water partition wall heat exchanger through a circulation pipeline with a water pump B and a valve J all the way. and the water inlet end of the air-water mixing heat exchanger is connected to the tap water supply pipe through a valve K, and the circulation pipe with the water pump B and the valve J is also provided with a one-way valve. 3. The rural household indirect evaporative coupled solar cooling and heating system according to claim 2, wherein the secondary air intake pipe includes an air intake pipe A for introducing air from the outside and an air intake pipe for exhausting from the room. The air inlet pipe B is introduced into the mouth, the air inlet pipe A is connected with the fan B through a valve L, and the air inlet pipe B is connected with the fan B through a valve M. 4. The rural household indirect evaporative coupled solar combined cooling and heating system according to claim 1, wherein an auxiliary heater for auxiliary heating is also provided in the hot water storage tank, and the auxiliary heater It is connected to the pipeline where the valve A is located through a pipeline with a valve N. 5. The rural household indirect evaporative coupled solar cooling and heating system according to claim 1, wherein the solar heat collection adsorption bed is installed on the roof of the user in a direction consistent with the user's local latitude. 6. The rural household indirect evaporation coupled solar cooling and heating system according to claim 1, characterized in that the coil heat exchanger is filled with adsorbents. 7. The rural household indirect evaporative coupled solar combined cooling and heating system according to claim 1, wherein the solar heat collecting adsorption bed is a component of the solar hot water subsystem and the solar adsorption refrigeration subsystem shared equipment.

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