CN111928510A - Modular plate type double-evaporator water source heat pump unit with two-position tee joint - Google Patents
Modular plate type double-evaporator water source heat pump unit with two-position tee joint Download PDFInfo
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- CN111928510A CN111928510A CN202010812942.5A CN202010812942A CN111928510A CN 111928510 A CN111928510 A CN 111928510A CN 202010812942 A CN202010812942 A CN 202010812942A CN 111928510 A CN111928510 A CN 111928510A
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- way valve
- refrigerant
- pipeline
- evaporator
- refrigerant pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a modularized plate type double-evaporator water source heat pump unit with a two-position tee joint, wherein a heat source water outlet on a first evaporator is connected with a heat source water inlet on a second evaporator; refrigerant outlets on the first evaporator and the second evaporator are connected with an inlet of a compressor through a first refrigerant pipeline, an outlet of the compressor is connected with a high-pressure refrigerant inlet through a second refrigerant pipeline, a first three-way valve and a fourth three-way valve are respectively arranged on the first refrigerant pipeline and the second refrigerant pipeline, the first three-way valve is also connected with the first refrigerant pipeline, and the second three-way valve is also connected with the second refrigerant pipeline; a third three-way valve is further arranged on a refrigerant pipeline III between the high-pressure refrigerant outlet and the filter, a third three-way valve is arranged on a supply pipeline at the rear section of the expansion valve, the second three-way valve is further connected with the supply pipeline, and the third three-way valve is further connected with the refrigerant pipeline III. The beneficial effects are as follows: the modular plate type double-evaporator water source heat pump unit with the two-position tee joint can fully recover waste water waste heat resources with higher temperature.
Description
Technical Field
The invention relates to the field of waste heat utilization, in particular to a modular plate type double-evaporator water source heat pump unit with two tee joints.
Background
The waste heat resources generated in production and life are not fully utilized all the time in the rapid development stage of the country. With the increasing requirements of the country on environmental protection in recent years, the technology for recovering waste heat resources in waste water, waste gas and the like is more and more emphasized by enterprises and public institutions. At present, the utilization of waste water waste heat resources is mainly based on a heat pump technology of a shell-and-tube heat exchanger, and heat in waste heat resources is extracted through forced heat exchange of a heat pump unit on a waste heat source. According to relevant standards, the heat pump unit basically reduces the waste water waste heat resource of about 15 degrees to 7 degrees in the use scene. When an enterprise has a high-temperature heat source, the heat cannot be fully recovered, and a large amount of resources are wasted.
Some enterprises recover high-temperature heat sources by serially connecting a plurality of heat pump units, but the working conditions of the heat pump units serially connected in the way are different, and when one of the heat pump units fails, the recovery efficiency of the subsequent heat pump unit is greatly reduced.
The disadvantages are that:
1. the existing heat pump unit shell-and-tube heat exchanger can not meet various heat requirements aiming at different seasons and different regions;
2. the whole set of unit is installed in a centralized way, which is not beneficial to maintenance, cleaning and replacement;
3. the cold and hot demands can be changed without any change.
Disclosure of Invention
The invention provides a modularized plate type double-evaporator water source heat pump unit with two tee joints, which aims to solve the problems in the prior art.
The technical scheme of the invention is realized as follows:
the utility model provides a board-like double evaporator water source heat pump set of modularization with two tee bend, includes: the system comprises a condenser, a compressor, a first evaporator and a second evaporator, wherein the condenser is provided with a preheated water inlet, a preheated water outlet, a high-pressure refrigerant inlet and a high-pressure refrigerant outlet;
the first evaporator and the second evaporator are respectively provided with a heat source water outlet, a heat source water inlet, a refrigerant outlet and a refrigerant inlet, and the heat source water outlet on the first evaporator is connected with the heat source water inlet on the second evaporator; the refrigerant outlets of the first evaporator and the second evaporator are connected with the inlet of the compressor through a refrigerant pipeline I, and the outlet of the compressor is connected with the high-pressure refrigerant inlet through a refrigerant pipeline II;
the high-pressure refrigerant outlet is connected with a filter, the filter is also connected with a liquid storage tank, the liquid storage tank is connected with the refrigerant inlets on the first evaporator and the second evaporator through a supply pipeline, and an expansion valve is also arranged on the supply pipeline;
a first three-way valve and a fourth three-way valve are respectively arranged on the first refrigerant pipeline and the second refrigerant pipeline, the first three-way valve is also connected with the first refrigerant pipeline, and the second three-way valve is also connected with the second refrigerant pipeline;
a third three-way valve is further arranged on a refrigerant pipeline III between the high-pressure refrigerant outlet and the filter, a third three-way valve is arranged on the supply pipeline at the rear section of the expansion valve, the second three-way valve is further connected with the supply pipeline, and the third three-way valve is further connected with the refrigerant pipeline III.
Furthermore, the first three-way valve is connected to the first refrigerant pipeline at the rear section of the fourth three-way valve through a pipeline, and the fourth three-way valve is connected to the second refrigerant pipeline at the rear end of the first three-way valve through a pipeline.
Further, the three-way valve two-way pipeline is connected to the supply pipeline at the front section of the three-way valve three, and the three-way valve is connected to the refrigerant pipeline three between the three-way valve two and the filter through a pipeline.
Further, the filter is a dry filter.
The invention has the beneficial effects that:
1. inside the modularized machine set, all parts are respectively and fixedly installed and are independent from each other, and the reserved space is convenient for technicians to independently overhaul the parts;
2. the modularized unit adopts a plate heat exchanger, and has smaller volume and lighter weight compared with a shell-and-tube heat exchanger under the condition of the same heat exchange area;
3. due to the modularized installation characteristic, a technician can disassemble and replace a problem component without disassembling the whole set of unit, so that the overhauling efficiency is greatly improved, and the labor intensity of the technician is reduced;
4. the modular plate type double-evaporator water source heat pump unit with the two-position tee joint can realize the full recovery of waste water and waste heat resources with higher temperature;
5. if the modularized plate type double-evaporator water source heat pump unit with the two-position tee joint is applied to a building central air conditioning system, the flow direction of a refrigerant in the system can be controlled through an electric valve in a refrigerant pipeline, the effect of supplying heat in summer and winter is achieved, and different requirements of users on cold and heat resources are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in FIG. 1, a modular plate type double-evaporator water source heat pump unit with two-position tee joint comprises: the system comprises a condenser 1, a compressor 2, a first evaporator 3 and a second evaporator 4, wherein the condenser 1 is provided with a preheated water inlet 9, a preheated water outlet 10, a high-pressure refrigerant inlet 7 and a high-pressure refrigerant outlet 16;
the first evaporator 3 and the second evaporator 4 are respectively provided with a heat source water outlet 11, a heat source water inlet 12, a refrigerant outlet 14 and a refrigerant inlet 13, and the heat source water outlet 11 on the first evaporator 3 is connected with the heat source water inlet 12 on the second evaporator 4; refrigerant outlets 14 on the first evaporator 3 and the second evaporator 4 are connected with an inlet of the compressor 2 through a refrigerant pipeline I21, and an outlet of the compressor 2 is connected with a high-pressure refrigerant inlet 7 through a refrigerant pipeline II 22;
the high-pressure refrigerant outlet 16 is connected with the filter 5, the filter 5 is a drying filter 5, the filter 5 is also connected with the liquid storage tank 6, the liquid storage tank 6 is connected with the refrigerant inlets 13 on the first evaporator 3 and the second evaporator 4 through the supply pipeline 15, the expansion valve 10 is also arranged on the supply pipeline 15, the expansion valve 10 plays a role in throttling and reducing the pressure in the pipe, the pressure is reduced, the temperature of the refrigerant is further reduced, and the heat absorption effect of the refrigerant in the last process is better;
a first three-way valve 17 and a fourth three-way valve 18 are respectively arranged on the first refrigerant pipeline 21 and the second refrigerant pipeline 22, the first three-way valve 17 is also connected with the first refrigerant pipeline 21, and the fourth three-way valve 18 is also connected with the second refrigerant pipeline 22;
a second three-way valve 19 is further disposed on a third refrigerant pipeline 23 between the high-pressure refrigerant outlet 16 and the filter 5, a third three-way valve 20 is disposed on the supply pipeline 15 at the rear section of the expansion valve 10, the second three-way valve 19 is further connected with the supply pipeline 15, and the third three-way valve 20 is further connected with the third refrigerant pipeline 23.
The first three-way valve 17 is connected to a first refrigerant pipeline 21 at the rear section of the fourth three-way valve 18 through a pipeline, and the fourth three-way valve 18 is connected to a second refrigerant pipeline 22 at the rear end of the first three-way valve 17 through a pipeline.
The second three-way valve 19 is connected to the supply line 15 at the front stage of the third three-way valve 20 through a pipeline, and the three-way valve is connected to a refrigerant line three 23 between the second three-way valve 19 and the filter 5 through a pipeline.
The working process of the device is as follows:
the condenser 1, the first evaporator 3 and the second evaporator 4 are all heat exchange equipment, when only the first refrigerant pipeline 21, the second refrigerant pipeline 22, the third refrigerant pipeline 23 and the supply pipeline 15 are opened, the pipeline between the first three-way valve 17 and the first refrigerant pipeline 21, the pipeline between the fourth three-way valve 18 and the second refrigerant pipeline 22, the pipeline between the second three-way valve 19 and the supply pipeline 15 and the pipeline between the third three-way valve 20 and the third refrigerant pipeline 23 are closed, heat source water enters the second evaporator 4 from the heat source water inlet 12, the heat source water and the refrigerant exchange heat in the second evaporator 4, and the heat source water after the heat exchange enters the first evaporator 3 to carry out secondary exchange to become cooling water and flows out from the heat source water outlet 11; the refrigerant is changed into a high-temperature refrigerant after heat exchange; the high-temperature and high-pressure refrigerant compressed by the compressor 2 releases heat in the condenser 1 to exchange heat with heating water, the cooled refrigerant enters the liquid storage tank 6 through the filter 5, and the refrigerant in the liquid storage tank 6 enters the first evaporator 3 and the second evaporator 4 again through the expansion valve 10 and exchanges heat with the water in the evaporators again.
When the direct connection ports of the three-way valve on the refrigerant pipeline I21, the refrigerant pipeline II 22, the refrigerant pipeline III 23 and the supply pipeline 15 are closed, and the pipeline between the three-way valve I17 and the refrigerant pipeline I21, the pipeline between the three-way valve IV 18 and the refrigerant pipeline II 22, the pipeline between the three-way valve II 19 and the supply pipeline 15 and the pipeline between the three-way valve III 20 and the refrigerant pipeline III 23 are all communicated, the functions of the evaporator and the condenser 1 are interchanged, the refrigerant in the condenser 1 passes through the three-way valve II 19 after heat exchange and enters the liquid storage tank 6 through the supply pipeline 15, the refrigerant in the liquid storage tank 6 enters the evaporator I3 and the evaporator II 4 through the filter 5 and the three-way valve III 20, the refrigerant enters the compressor 2 from the refrigerant outlet 14 through a part of the refrigerant pipeline and then through the three-way valve I17 after heat exchange in the evaporator I3 and the, after being compressed by the compressor 2, the refrigerant is introduced into the condenser 1 again through the three-way valve four 18.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a board-like double evaporator water source heat pump set of modularization with two tee bends which characterized in that includes: the system comprises a condenser, a compressor, a first evaporator and a second evaporator, wherein the condenser is provided with a preheated water inlet, a preheated water outlet, a high-pressure refrigerant inlet and a high-pressure refrigerant outlet;
the first evaporator and the second evaporator are respectively provided with a heat source water outlet, a heat source water inlet, a refrigerant outlet and a refrigerant inlet, and the heat source water outlet on the first evaporator is connected with the heat source water inlet on the second evaporator; the refrigerant outlets of the first evaporator and the second evaporator are connected with the inlet of the compressor through a refrigerant pipeline I, and the outlet of the compressor is connected with the high-pressure refrigerant inlet through a refrigerant pipeline II;
the high-pressure refrigerant outlet is connected with a filter, the filter is also connected with a liquid storage tank, the liquid storage tank is connected with the refrigerant inlets on the first evaporator and the second evaporator through a supply pipeline, and an expansion valve is also arranged on the supply pipeline;
a first three-way valve and a fourth three-way valve are respectively arranged on the first refrigerant pipeline and the second refrigerant pipeline, the first three-way valve is also connected with the first refrigerant pipeline, and the second three-way valve is also connected with the second refrigerant pipeline;
a third three-way valve is further arranged on a refrigerant pipeline III between the high-pressure refrigerant outlet and the filter, a third three-way valve is arranged on the supply pipeline at the rear section of the expansion valve, the second three-way valve is further connected with the supply pipeline, and the third three-way valve is further connected with the refrigerant pipeline III.
2. The modular plate type double-evaporator water source heat pump unit with the two-position tee joint as claimed in claim 1, wherein: the first three-way valve is connected to the first refrigerant pipeline at the rear section of the fourth three-way valve through a pipeline, and the fourth three-way valve is connected to the second refrigerant pipeline at the rear end of the first three-way valve through a pipeline.
3. The modular plate type double-evaporator water source heat pump unit with the two-position tee joint as claimed in claim 1, wherein: the three-way valve two-way pipeline is connected to the supply pipeline at the front section of the three-way valve three, and the three-way valve is connected to the refrigerant pipeline three between the three-way valve two and the filter through a pipeline.
4. The modular plate type double-evaporator water source heat pump unit with the two-position tee joint as claimed in claim 1, wherein: the filter is a dry filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812942.5A CN111928510A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit with two-position tee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812942.5A CN111928510A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit with two-position tee joint |
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| Publication Number | Publication Date |
|---|---|
| CN111928510A true CN111928510A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010812942.5A Pending CN111928510A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit with two-position tee joint |
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| CN (1) | CN111928510A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877553A (en) * | 2022-04-24 | 2022-08-09 | 大庆市普罗石油科技有限公司 | Double-evaporator heat pump unit utilizing waste heat of oily sewage |
-
2020
- 2020-08-13 CN CN202010812942.5A patent/CN111928510A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877553A (en) * | 2022-04-24 | 2022-08-09 | 大庆市普罗石油科技有限公司 | Double-evaporator heat pump unit utilizing waste heat of oily sewage |
| CN114877553B (en) * | 2022-04-24 | 2023-09-08 | 大庆市普罗石油科技有限公司 | Heat pump unit utilizing waste heat of oily sewage by double evaporators |
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