CN215176172U - Waste heat utilization system for passive building - Google Patents
Waste heat utilization system for passive building Download PDFInfo
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- CN215176172U CN215176172U CN202121047053.0U CN202121047053U CN215176172U CN 215176172 U CN215176172 U CN 215176172U CN 202121047053 U CN202121047053 U CN 202121047053U CN 215176172 U CN215176172 U CN 215176172U
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Abstract
The utility model relates to a waste heat utilization system for passive building, including compressor, heat transfer subsystem and constant temperature subsystem. The compressor is used for compressing the gas refrigerant medium with low temperature and low pressure to form the gas refrigerant medium with high temperature and high pressure. The inlet of the heat exchange subsystem is connected with the outlet end of the compressor through a reversing valve. The heat exchange subsystem is internally filled with a heat exchange medium, and the heat exchange medium absorbs the heat of the high-temperature high-pressure gas refrigerant medium during waste heat recovery so as to form a high-temperature heat exchange medium. The outlet of the heat exchange subsystem is connected with the constant temperature subsystem and the water tank through a three-way pipe respectively, and high-temperature heat exchange medium is introduced into the constant temperature subsystem for storage. The constant temperature subsystem is used for keeping constant temperature of the high-temperature heat exchange medium. Compared with the prior art, the reversing valve is connected with the four-way valve body through the one-way valve, the problem that a large amount of heat is wasted when a heat pump system is used for refrigerating is solved, meanwhile, the heat is effectively utilized, a constant temperature subsystem which is convenient to use is formed, and the heat pump system is convenient for living.
Description
Technical Field
The utility model relates to an energy-conserving building technical field of passive form especially relates to a waste heat utilization system for passive building.
Background
The passive building, namely the passive house of the energy-saving house, is an energy-saving building built based on the passive design. The passive house is not only suitable for houses, but also suitable for office buildings, schools, kindergartens, supermarkets and the like. Passive buildings do not require active heating and rely essentially on passively collected heat to maintain a comfortable temperature for the building itself. The heat energy from the sun, human body, household electrical appliances, heat recovery devices, etc. is used, and the supply of an active heat source is not required. With the more urgent need for energy conservation, passive buildings are developed.
At present, a newly built building mostly adopts a passive energy-saving building form, adopts an enclosure structure with higher heat insulation performance and air tightness, and utilizes a heat pump system to reduce cooling energy consumption to the maximum extent, improve energy utilization rate and provide a residential building with more comfortable indoor environment with less energy consumption. Among them, the heat pump system generates a large amount of heat outdoors when cooling. A great deal of waste of heat is caused by the direct discharge of heat.
For this reason, waste heat recycling by a recovery heat pump is an urgent need for a waste heat utilization system for passive buildings.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above disadvantages and deficiencies of the prior art, the present invention provides a waste heat utilization system for passive buildings, which solves the technical problem that a heat pump system can generate a large amount of heat outdoors when refrigerating, and the direct discharge of heat can cause a large amount of waste of heat.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
a waste heat utilization system for passive buildings comprises a compressor, a heat exchange subsystem and a constant temperature subsystem;
the compressor is used for compressing the low-temperature low-pressure gas refrigerant medium to form a high-temperature high-pressure gas refrigerant medium;
the inlet of the heat exchange subsystem is connected with the outlet end of the compressor through a reversing valve;
a heat exchange medium is introduced into the heat exchange subsystem, and the heat exchange medium absorbs heat of a high-temperature high-pressure gas refrigerant medium during waste heat recovery so as to form a high-temperature heat exchange medium;
the outlet of the heat exchange subsystem is connected with the constant temperature subsystem and the water tank through a three-way pipe respectively, and the high-temperature heat exchange medium is introduced into the constant temperature subsystem for storage;
the constant temperature subsystem is used for keeping the constant temperature of the high-temperature heat exchange medium.
Optionally, the heat exchange subsystem comprises a plate heat exchanger, the plate heat exchanger is respectively communicated with one end of a cold water pipe and one end of a hot water pipe, the cold water of the cold water pipe is used as a heat exchange medium and passes through the plate heat exchanger to absorb heat of a high-temperature and high-pressure gas refrigerant medium at the outlet end of the compressor, and hot water flowing into the hot water pipe is obtained and used as a high-temperature heat exchange medium;
the reversing valve is also connected with the four-way valve body through a one-way valve.
Optionally, the constant temperature subsystem comprises a constant temperature storage room, a heat preservation assembly and a temperature sensor;
the inlet end of the constant temperature storage chamber is connected with the other end of the hot water pipe and is used for storing the high-temperature medium;
the heat preservation assembly is arranged outside the constant-temperature storage chamber and is used for preserving heat of the constant-temperature storage chamber so that the temperature of hot water in the constant-temperature storage chamber is always kept within a set temperature;
the temperature sensor is arranged in the constant-temperature storage chamber and used for detecting the temperature in the constant-temperature storage chamber;
when the temperature sensor detects that the temperature of the hot water in the constant-temperature storage chamber is lower than the set temperature, an outlet end valve of the constant-temperature storage chamber is opened, and an outlet end of the constant-temperature storage chamber is connected with a cleaning tank pipeline;
when the temperature is higher than the set temperature, cold water is supplemented through the water supplementing port so as to keep the temperature constant.
Optionally, the heat preservation assembly comprises a heat preservation box body with an open top and an upper heat preservation cover body;
the heat preservation box body is tightly covered outside the constant-temperature storage chamber, and sealing strips are arranged on the periphery above the heat preservation box body;
the bottom of going up the heat preservation lid with the top of constant temperature storeroom is contradicted, just go up the outside extension all around of heat preservation lid and form the extension, the extension corresponds the below of sealing strip is provided with the seal groove, the seal groove with the sealing strip cooperation.
Optionally, the other end of the cold water pipe is respectively communicated with the water tank and an external water supply pipeline.
Optionally, a heating pipe for heating is arranged in the water tank.
Optionally, an agitator and a detergent addition port are provided in the cleaning tank.
Optionally, a valve body is arranged between the three-way pipe and the constant temperature storage chamber, the water tank and the plate heat exchanger.
(III) advantageous effects
The utility model has the advantages that: the utility model discloses a waste heat utilization system for passive building compresses the gaseous refrigerant medium of low temperature low pressure through the compressor to form the highly compressed gaseous refrigerant medium of high temperature. When waste heat recovery is needed, the trend of the waste heat is adjusted through the reversing valve, so that the high-temperature and high-pressure gas refrigerant medium is introduced into the heat exchange subsystem, and the heat exchange medium in the heat exchange subsystem forms the high-temperature heat exchange medium. Wherein, a part of the high-temperature heat exchange medium is introduced into the constant-temperature subsystem to form a constant-temperature medium for storage. The other part is introduced into the water tank to realize water circulation. Compared with the prior art, the heat pump system solves the problem that a large amount of heat is wasted when the heat pump system is used for refrigerating, meanwhile, the heat is effectively utilized, a constant-temperature subsystem which is convenient to use is formed, and living needs are facilitated.
Drawings
Fig. 1 is a schematic circuit diagram of a waste heat utilization system for passive buildings according to the present invention;
fig. 2 is a schematic cross-sectional view of the constant temperature subsystem of fig. 1.
[ description of reference ]
1: a compressor;
2: a diverter valve;
3: a three-way pipe;
4: a plate heat exchanger;
5: a cold water pipe;
6: a hot water pipe;
7: a constant temperature storage room:
8: a heat preservation assembly; 81: a heat preservation box body; 82: an upper heat-insulating cover body; 83: a sealing strip; 84: a sealing groove;
9: a temperature sensor;
10: a water tank;
11: heating a tube;
12: a cleaning tank;
13: a stirrer;
14: a detergent addition port;
15: a one-way valve;
16: a four-way valve body;
17: a condenser;
18: an evaporator;
19: a water replenishing port;
100: and a constant temperature subsystem.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. As used herein, the terms "upper," "lower," and the like are used with reference to the orientation of FIG. 2.
Referring to fig. 1-2, an embodiment of the present invention provides a waste heat utilization system for passive buildings, including a compressor 1, a heat exchange subsystem, and a constant temperature subsystem 100.
The compressor 1 is used for compressing a low-temperature low-pressure gas refrigerant medium to form a high-temperature high-pressure gas refrigerant medium.
The inlet of the heat exchange subsystem is connected with the outlet end of the compressor 1 through a reversing valve 2.
The heat exchange subsystem is internally filled with a heat exchange medium, and the heat exchange medium absorbs the heat of the high-temperature high-pressure gas refrigerant medium during waste heat recovery so as to form a high-temperature heat exchange medium.
The outlet of the heat exchange subsystem is connected with the constant temperature subsystem 100 and the water tank 10 through a three-way pipe 3 respectively, and high-temperature heat exchange medium is introduced into the constant temperature subsystem 100 for storage.
The constant temperature subsystem 100 is used for keeping constant temperature of the high-temperature heat exchange medium.
Wherein, the other outlet end of the reversing valve 2 is connected with a four-way valve body 16 through a one-way valve 15. The high-temperature high-pressure gas refrigerant medium compressed by the compressor 1 enters the inlet end of the four-way valve body 16 through a one-way valve 15. Meanwhile, after waste heat is utilized at one outlet end of the heat exchange subsystem 4, the temperature of the refrigerant medium is reduced, the refrigerant medium enters the four-way valve body 16 through the other one-way valve 15, then enters the condenser 17 for condensation, and then enters the evaporator 18 for evaporation, so that the indoor temperature is reduced.
The utility model provides a waste heat utilization system for passive building compresses the gaseous refrigerant medium of low temperature low pressure through compressor 1 to form the highly compressed gaseous refrigerant medium of high temperature. When waste heat recovery is needed, the trend of the waste heat is adjusted through the reversing valve 2, so that a high-temperature and high-pressure gas refrigerant medium is introduced into the heat exchange subsystem, and the heat exchange medium in the heat exchange subsystem forms a high-temperature heat exchange medium. Wherein, a part of the high-temperature heat exchange medium is introduced into the constant-temperature subsystem to form a constant-temperature medium for storage. The other part is introduced into the water tank 10 to realize water circulation. Compared with the prior art, the heat pump system solves the problem that a large amount of heat is wasted when the heat pump system is used for refrigerating, meanwhile, the heat is effectively utilized, a constant-temperature subsystem which is convenient to use is formed, and living needs are facilitated.
Further, the heat exchange subsystem comprises a plate heat exchanger 4, the plate heat exchanger 4 is respectively communicated with one end of a cold water pipe 5 and one end of a hot water pipe 6, cold water of the cold water pipe 5 is used as a heat exchange medium and passes through the plate heat exchanger 4 to absorb heat of a high-temperature high-pressure gas refrigerant medium at the outlet end of the compressor 1, and hot water flowing into the hot water pipe 6 is obtained and used as the high-temperature heat exchange medium.
Specifically, the plate heat exchanger 4 has good heat exchange effect and uniform heat exchange.
Further, the constant temperature subsystem 100 includes a constant temperature storage compartment 7, a temperature maintenance assembly 8, and a temperature sensor 9.
The inlet end of the constant temperature storage chamber 7 is connected with the other end of the hot water pipe 6 for storing high temperature medium.
The heat-retaining unit 8 is provided outside the constant-temperature storage chamber 7 and retains heat in the constant-temperature storage chamber 7 so that the temperature of the hot water in the constant-temperature storage chamber 7 is always kept within a set temperature.
The temperature sensor 9 is provided in the constant temperature storage chamber 7, and detects the temperature in the constant temperature storage chamber 7.
When the temperature sensor 9 detects that the temperature of the hot water in the constant temperature storage chamber 7 is lower than the set temperature, the outlet valve of the constant temperature storage chamber 7 is opened, and the outlet of the constant temperature storage chamber 7 is connected with the cleaning tank 12 through a pipeline.
When the temperature is higher than the set temperature, cold water is supplied through the water supply port 19 to make the temperature constant.
The purpose of the constant temperature subsystem 100 is to set a constant specific temperature according to the requirement, detect the temperature by the temperature sensor 9, and send the temperature to the controller, and the controller is used to receive the temperature sent by the temperature sensor 9 and then regulate the temperature of the high temperature heat exchange medium in the constant temperature storage chamber 7. When the temperature is higher than the set temperature, the controller controls the water replenishing port 19 to be opened, cold water is put in, and the cold water is neutralized by the high-temperature heat exchange medium to form the required temperature, and then water replenishing is stopped. If the time is too long or the temperature of the initial high-temperature heat exchange medium is lower than the set temperature, the outlet valve is opened, and the heat exchange medium flows into the cleaning box 12 for reuse.
Further, the thermal insulation assembly 8 includes a thermal insulation case 81 having an open top and an upper thermal insulation cover 82.
The heat preservation box 81 is tightly covered outside the constant temperature storage chamber 7, and sealing strips 83 are arranged on the periphery above the heat preservation box 81.
The bottom of the upper heat-insulating cover body 82 is abutted against the top of the constant-temperature storage chamber 7, the periphery of the upper heat-insulating cover body 82 extends outwards to form an extension part, a sealing groove 84 is arranged below the extension part corresponding to the sealing strip 83, and the sealing groove 84 is matched with the sealing strip 83.
The heat insulation tightness of the heat insulation component is increased, and the constant temperature effect of the constant temperature subsystem 100 is further improved.
Further, the supply of cold water is facilitated, and the other end of the cold water pipe 5 is respectively communicated with the water tank 10 and an external water supply pipeline.
Further, a heating pipe 11 for heating is provided in the water tank 10.
Further, an agitator 13 and a detergent addition port 14 are provided in the cleaning tank 12. The mixing effect of the detergent 14 and the high temperature medium is increased by the agitator 13 to make the cleaning effect more effective.
Further, for convenience of control, valve bodies are arranged between the three-way pipe 3 and the constant-temperature storage chamber 7, and between the water tank 10 and the plate heat exchanger 4.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. A waste heat utilization system for passive construction, characterized by: comprises a compressor (1), a heat exchange subsystem and a constant temperature subsystem (100);
the compressor (1) is used for compressing low-temperature and low-pressure gas refrigerant medium to form high-temperature and high-pressure gas refrigerant medium;
the inlet of the heat exchange subsystem is connected with the outlet end of the compressor (1) through a reversing valve (2);
a heat exchange medium is introduced into the heat exchange subsystem, and the heat exchange medium absorbs heat of a high-temperature high-pressure gas refrigerant medium during waste heat recovery so as to form a high-temperature heat exchange medium;
the outlet of the heat exchange subsystem is connected with the constant temperature subsystem (100) and the water tank (10) through a three-way pipe (3), and the high-temperature heat exchange medium is introduced into the constant temperature subsystem (100) for storage;
the constant temperature subsystem (100) is used for keeping the high-temperature heat exchange medium at a constant temperature;
the reversing valve (2) is also connected with a four-way valve body (16) through a one-way valve (15).
2. The waste heat utilization system for passive buildings according to claim 1, characterized in that: the heat exchange subsystem comprises a plate type heat exchanger (4), the plate type heat exchanger (4) is respectively communicated with one end of a cold water pipe (5) and one end of a hot water pipe (6), cold water of the cold water pipe (5) is used as a heat exchange medium and passes through the plate type heat exchanger (4) to absorb heat of a high-temperature high-pressure gas refrigerant medium at the outlet end of the compressor (1), and hot water flowing into the hot water pipe (6) is obtained and used as the high-temperature heat exchange medium.
3. The waste heat utilization system for passive buildings according to claim 2, characterized in that: the constant temperature subsystem (100) comprises a constant temperature storage chamber (7), a heat preservation component (8) and a temperature sensor (9);
the inlet end of the constant temperature storage chamber (7) is connected with the other end of the hot water pipe (6) and is used for storing the high-temperature heat exchange medium;
the heat preservation assembly (8) is arranged outside the constant-temperature storage chamber (7) and is used for preserving heat of the constant-temperature storage chamber (7) so that the temperature of hot water in the constant-temperature storage chamber (7) is always kept within a set temperature;
the temperature sensor (9) is arranged in the constant-temperature storage chamber (7) and is used for detecting the temperature in the constant-temperature storage chamber (7);
when the temperature sensor (9) detects that the temperature of the hot water in the constant temperature storage chamber (7) is lower than the set temperature, an outlet valve of the constant temperature storage chamber (7) is opened, and an outlet of the constant temperature storage chamber (7) is connected with an inlet pipeline of a cleaning tank (12);
when the temperature is higher than the set temperature, cold water is supplemented through a water supplementing port (19) so as to make the temperature constant.
4. The waste heat utilization system for passive buildings according to claim 3, characterized in that: the heat preservation assembly (8) comprises a heat preservation box body (81) with an opening at the top and an upper heat preservation cover body (82);
the heat preservation box body (81) is tightly covered outside the constant temperature storage chamber (7), and sealing strips (83) are arranged on the periphery above the heat preservation box body (81);
the bottom of going up heat preservation lid (82) with the top of constant temperature storeroom (7) is contradicted, just go up the outside extension all around of heat preservation lid (82) and form the extension, the extension corresponds the below of sealing strip (83) is provided with seal groove (84), seal groove (84) with sealing strip (83) cooperation.
5. The waste heat utilization system for passive buildings according to claim 4, characterized in that: the other end of the cold water pipe (5) is respectively communicated with the water tank (10) and an external water supply pipeline.
6. The waste heat utilization system for passive buildings according to claim 5, characterized in that: a heating pipe (11) for heating is arranged in the water tank (10).
7. The waste heat utilization system for passive buildings according to claim 3, characterized in that: a stirrer (13) and a cleaning agent adding port (14) are arranged in the cleaning box (12).
8. The waste heat utilization system for passive buildings according to claim 5, characterized in that: valve bodies are arranged between the three-way pipe (3) and the constant temperature storage chamber (7), the water tank (10) and the plate heat exchanger (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121047053.0U CN215176172U (en) | 2021-05-17 | 2021-05-17 | Waste heat utilization system for passive building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121047053.0U CN215176172U (en) | 2021-05-17 | 2021-05-17 | Waste heat utilization system for passive building |
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| CN215176172U true CN215176172U (en) | 2021-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294934A (en) * | 2021-05-17 | 2021-08-24 | 济南一建集团有限公司 | Passive building waste heat utilization system |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294934A (en) * | 2021-05-17 | 2021-08-24 | 济南一建集团有限公司 | Passive building waste heat utilization system |
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