CN111928532A - Modular plate type double-evaporator water source heat pump unit - Google Patents
Modular plate type double-evaporator water source heat pump unit Download PDFInfo
- Publication number
- CN111928532A CN111928532A CN202010813930.4A CN202010813930A CN111928532A CN 111928532 A CN111928532 A CN 111928532A CN 202010813930 A CN202010813930 A CN 202010813930A CN 111928532 A CN111928532 A CN 111928532A
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- Prior art keywords
- evaporator
- refrigerant
- outlet
- inlet
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a modularized plate type double-evaporator water source heat pump unit, which 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; refrigerant outlets on the first evaporator and the second evaporator are connected with an inlet of a compressor through a refrigerant pipeline, and an outlet of the compressor is connected with a high-pressure refrigerant inlet through a refrigerant pipeline; the high-pressure refrigerant outlet is connected with the filter, the filter is also connected with the liquid storage tank, and the liquid storage tank is connected with the refrigerant inlets on the first evaporator and the second evaporator through the supply pipeline. The beneficial effects are as follows: inside the modularization unit, each spare part is fixed mounting respectively, and each spare part is independent each other, and the spare space makes things convenient for technical staff to overhaul the spare part alone.
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.
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. most shell-and-tube heat exchangers of the existing heat pump units are connected in series, and when refrigerant leakage occurs due to certain factors, leakage positions are not easy to check.
2. The compressor in the unit is fixed on the upper parts of the condenser and the evaporator. The structure is too compact, and when a certain section of heat exchanger breaks down and needs to be replaced, the problem part can be replaced only by disassembling the whole machine set.
Disclosure of Invention
The invention provides a modularized plate type double-evaporator water source heat pump unit for solving the problems in the prior art.
The technical scheme of the invention is realized as follows:
a modular plate type double-evaporator water source heat pump unit comprises: 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 evaporator I and the evaporator II are both 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 evaporator I is connected with the heat source water inlet on the evaporator II; the refrigerant outlets of the first evaporator and the second evaporator are connected with the inlet of the compressor through a refrigerant pipeline, and the outlet of the compressor is connected with the high-pressure refrigerant inlet through a refrigerant pipeline;
the high-pressure refrigerant outlet is connected with a filter, the filter is further connected with a liquid storage tank, and the liquid storage tank is connected with the refrigerant inlets on the first evaporator and the second evaporator through a supply pipeline.
Further, an expansion valve is also provided on the supply line.
Further, the condenser is a detachable plate heat exchanger.
Further, the first evaporator and the second evaporator are also detachable plate heat exchangers.
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 can fully recover waste water waste heat resources with higher temperature;
5. if the modularized plate type double-evaporator water source heat pump unit is applied to a central air conditioning system of a building, the flow direction of water supply in the system can be controlled through an electric valve in a pipeline, and the effect of supplying heat in summer and cold winter is achieved, so that different requirements of users on cold and hot 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 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 8, 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, and an outlet of the compressor 2 is connected with a high-pressure refrigerant inlet 137 through a refrigerant pipeline;
the high-pressure refrigerant outlet 16 is connected with the 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, and the supply pipeline 15 is also provided with the expansion valve 10.
The condenser 1, the first evaporator 3 and the second evaporator 4 are also detachable plate heat exchangers.
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, heat source water enters the second evaporator 4 from a heat source water inlet 12, the heat source water and a refrigerant exchange heat in the second evaporator 4, the heat source water after exchange enters the first evaporator 3 for secondary exchange, and flows out from a heat source water outlet 11; after heat exchange, the refrigerant absorbs heat and evaporates; the refrigerant after being compressed by the compressor 2 is changed into a high-pressure high-temperature refrigerant, the heat is released in the condenser 1 to exchange heat with heating water, the refrigerant after being cooled enters the liquid storage tank 6 through the filter 5, 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, in the process, 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 can be further reduced, and the heat absorption effect of the refrigerant in the final starting process is better.
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 two evaporimeter water source heat pump set of modularization which characterized in that includes: 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 evaporator I and the evaporator II are both 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 evaporator I is connected with the heat source water inlet on the evaporator II; the refrigerant outlets of the first evaporator and the second evaporator are connected with the inlet of the compressor through a refrigerant pipeline, and the outlet of the compressor is connected with the high-pressure refrigerant inlet through a refrigerant pipeline;
the high-pressure refrigerant outlet is connected with a filter, the filter is further connected with a liquid storage tank, and the liquid storage tank is connected with the refrigerant inlets on the first evaporator and the second evaporator through a supply pipeline.
2. The modular plate type double-evaporator water source heat pump unit according to claim 1, wherein: an expansion valve is also arranged on the supply pipeline.
3. The modular plate type double-evaporator water source heat pump unit according to claim 1, wherein: the condenser is a detachable plate heat exchanger.
4. The modular plate type double-evaporator water source heat pump unit according to claim 1, wherein: the first evaporator and the second evaporator are also detachable plate heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813930.4A CN111928532A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010813930.4A CN111928532A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111928532A true CN111928532A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010813930.4A Pending CN111928532A (en) | 2020-08-13 | 2020-08-13 | Modular plate type double-evaporator water source heat pump unit |
Country Status (1)
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| CN (1) | CN111928532A (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 CN202010813930.4A patent/CN111928532A/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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