CN214307683U

CN214307683U - Energy-saving double-temperature regulation heat recovery system

Info

Publication number: CN214307683U
Application number: CN202120296580.9U
Authority: CN
Inventors: 刘长志
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-09-28
Anticipated expiration: 2031-02-04

Abstract

The utility model relates to an energy-saving two temperature control heat recovery system. The technical scheme includes that the system comprises a control center, a distribution box, a refrigeration compressor, a waste heat absorption water tank, a waste heat absorption water circulating pump, a condenser, a heat recovery unit, a waste heat exchanger, a refrigeration evaporator, a drying filter, a thermal expansion valve, a cold water storage tank, a circulating pump, a hot water storage tank and a cleaning liquid filler. The utility model discloses utilize the heat recovery unit to realize the thermal recovery recycle of compressor release, the heat of utilizing the recovery can add hot water and provide hot water for the user area, utilize waste heat exchanger and refrigeration evaporator can realize effective cooling and the heat absorption refrigeration effect of refrigerant simultaneously, thereby realize the thermal recovery recycle that the user area refrigeration discharged, and the heat recovery unit can utilize the washing liquid filling ware to provide the washing liquid and clear up the inside incrustation scale of heat recovery unit, its both ends lid dismouting of being convenient for also makes the clearance of whole heat recovery unit maintain more convenient simultaneously.

Description

Energy-saving double-temperature regulation heat recovery system

Technical Field

The utility model relates to a refrigeration plant technical field specifically is an energy-saving two temperature regulation heat recovery system.

Background

Along with the high-speed increase of national economy, the improvement of the living standard of the society is established, the country and people attach more and more importance to energy conservation, consumption reduction, emission reduction, environmental protection and green, in the aspect of refrigeration and heating equipment, various technologies are continuously developed and improved, energy conservation, environmental protection and resource waste reduction are sought, the existing refrigeration equipment used in families, hotels and other places is divided into an air cooling unit and a water cooling unit, the single refrigeration effect can be realized, heat emitted from a condenser during refrigeration is also discharged into the air and is not effectively utilized, and the resource waste is caused.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses an energy-saving double-temperature regulation heat recovery system, which adopts the technical proposal that the system comprises a control center, a distribution box, a refrigeration compressor and a condenser, it is characterized in that the control center is arranged in the distribution box and is electrically connected with the refrigeration compressor, the liquid outlet of the refrigeration compressor is communicated and connected with the refrigerant inlet of the heat recovery unit through a pipeline, the refrigerant outlet of the heat recovery unit is communicated and connected with the refrigerant inlet of the waste heat exchanger through a pipeline, the refrigerant outlet of the waste heat exchanger is communicated and connected with the refrigerant inlet of the refrigeration evaporator through a pipeline, a drying filter and a thermal expansion valve are sequentially arranged on a pipeline between the waste heat exchanger and the refrigeration evaporator along the circulation direction of a refrigerant, a refrigerant outlet of the refrigeration evaporator is communicated and connected to a liquid inlet of the refrigeration compressor through a pipeline; the water inlet and the water outlet of the heat recovery unit are respectively communicated and connected with a hot water storage tank through a pipeline, the water outlet of the heat recovery unit is communicated and connected with a cleaning liquid filler through a pipeline, a first valve is arranged on the pipeline, the hot water storage tank is communicated and connected with a heat supply pipeline in a user area through a pipeline to form a loop, and a second hot water circulating pump and a first hot water circulating pump are respectively arranged on a water supply pipeline and a water return pipeline between the hot water storage tank and the user area; a water inlet of the waste heat exchanger is communicated and connected with a waste heat absorption water tank through a pipeline, a waste heat absorption water circulating pump is installed on the pipeline between the waste heat absorption water tank and the waste heat exchanger, a water outlet of the waste heat exchanger is communicated and connected with a water inlet of a condensation heat exchanger in a condenser through a pipeline, a water outlet of the condensation heat exchanger is communicated and connected with the waste heat absorption water tank through a pipeline, and a cooling fan is installed at the top of the condenser; the water inlet of the refrigeration evaporator is connected with a cold water storage tank through a pipeline in a communicating manner, a second cold water circulating pump is installed on the pipeline between the cold water storage tank and the refrigeration evaporator, the water outlet of the refrigeration evaporator is connected with the cold water storage tank through a pipeline in a communicating manner, the cold water storage tank is connected with a refrigeration pipeline in a user area through a pipeline in a communicating manner to form a loop, the cold water storage tank is communicated with a water supply pipeline of the user area and provided with a first cold water circulating pump, and the control center and the distribution box are respectively connected with the cooling fan, the waste heat absorption water circulating pump, the heat recovery unit, the first cold water circulating pump, the second cold water circulating pump, the first hot water circulating pump and the second hot water circulating pump are electrically connected.

As a preferred scheme of the utility model, the heat recovery unit comprises a heat exchange tank body, the heat exchange tank body is divided into an inner cavity and an outer cavity, the inner cavity is communicated and connected with a refrigerant liquid inlet pipe and a refrigerant liquid outlet pipe, the refrigerant liquid inlet pipe is communicated and connected with the refrigeration compressor, the refrigerant liquid outlet pipe is communicated and connected with the waste heat exchanger, two ends of the heat exchange tank body are respectively and fixedly connected with a left end cover and a right end cover through an end cover connecting chuck in a sealing way, a hot water return pipe is fixedly connected onto the left end cover, the hot water return pipe is communicated and connected with the outer cavity of the heat exchange tank body through the left end cover, the hot water return pipe is fixedly installed through a pipeline fixing buckle, the other end of the hot water return pipe is communicated and connected with a hot water storage tank and is provided with a second valve, the lower end of the second valve is communicated and connected with a cleaning liquid on the hot water return pipe, the cleaning solution filling pipe is communicated and connected with the cleaning solution filler, the cleaning solution filling pipe is fixedly installed through the pipeline fixing buckle, the first valve is installed on the cleaning solution filling pipe, the right end cover is fixedly connected with a hot water transition communicating pipe and a drain pipe, the hot water transition communicating pipe and the drain pipe are respectively communicated and connected with the outer cavity of the heat exchange tank body through the right end cover, the drain pipe is provided with a third valve, the heat exchange tank body is provided with a safety valve, the other end of the hot water transition communicating pipe is communicated and connected with the liquid outlet of the heat exchange circulating pump, the hot water transition communicating pipe is provided with a damping pipe and a fourth valve and is fixedly installed through the pipeline fixing buckle, the liquid inlet of the heat exchange circulating pump is communicated and connected with a hot water inlet pipe, and the other end of the hot water inlet pipe is communicated and connected with the hot water storage tank, the heat exchange circulating pump is fixedly arranged at the upper part of the heat exchange tank body.

As an optimized scheme of the utility model, the heat recovery unit waste heat exchanger and be arranged in the pipeline of each equipment in the connected system all select stainless steel for use.

The utility model has the advantages that: the utility model discloses utilized heat recovery unit to realize recycling the thermal recovery of compressor release, the heat of utilizing the recovery can add hot water and provide hot water for the user area, utilize waste heat exchanger and refrigeration evaporator can realize effective cooling and the heat absorption refrigeration effect of refrigerant simultaneously, thereby realize recycling the thermal recovery of user area refrigeration emission, resource utilization has been promoted, and heat recovery unit can utilize the washing liquid filling device to provide the washing liquid and clear up the inside incrustation scale of heat recovery unit, its both ends lid dismouting of being convenient for also makes the clearance of whole heat recovery unit maintain more convenient simultaneously.

Drawings

Fig. 1 is an overall schematic diagram of the system of the present invention;

fig. 2 is a schematic structural view of the heat recovery unit of the present invention.

In the figure: 1-control center, 2-distribution box, 3-refrigeration compressor, 4-waste heat absorption water tank, 5-radiator fan, 6-condensation heat exchanger, 7-waste heat absorption water circulating pump, 8-condenser, 9-heat recovery unit, 901-heat exchange tank, 902-hot water return pipe, 903-hot water transition communicating pipe, 904-shock absorption pipe, 905-end cover connecting chuck, 906-heat exchange circulating pump, 907-refrigerant liquid inlet pipe, 908-refrigerant liquid outlet pipe, 909-safety valve, 910-hot water inlet pipe, 911-cleaning liquid filling pipe, 912-liquid outlet pipe, 913-left end cover, 914-right end cover, 10-waste heat exchanger, 11-refrigeration evaporator, 12-drying filter, 13-thermal expansion valve, 13-waste heat recovery unit, etc, 14-a cold water storage tank, 15-a first cold water circulating pump, 16-a user area, 17-a second cold water circulating pump, 18-a hot water storage tank, 19-a first hot water circulating pump, 20-a second hot water circulating pump, 21-a cleaning liquid filler, 22-a first valve, 23-a second valve, 24-a pipeline fixing buckle, 25-a third valve and 26-a fourth valve.

Detailed Description

Example 1

As shown in fig. 1 to fig. 2, an energy-saving double-temperature regulation heat recovery system, the technical scheme of adoption is, including control center 1, block terminal 2, compressor 3, condenser 8, its characterized in that, control center 1 install in block terminal 2 and with compressor 3 electric connection, compressor 3 liquid outlet passes through the refrigerant import of pipeline intercommunication connection heat recovery unit 9, the refrigerant export of heat recovery unit 9 passes through the refrigerant import of pipeline intercommunication connection waste heat exchanger 10, the refrigerant export of waste heat exchanger 10 passes through the refrigerant import of pipeline intercommunication connection refrigeration evaporator 11, waste heat exchanger 10 with install drier-filter 12, thermal expansion valve 13 along refrigerant flow direction on the pipeline between refrigeration evaporator 11 in proper order, the refrigerant export of refrigeration evaporator 11 is connected to through pipeline intercommunication the feed liquor of compressor 3 A mouth; a water inlet and a water outlet of the heat recovery unit 9 are respectively communicated and connected with a hot water storage tank 18 through a pipeline, the water outlet of the heat recovery unit 9 is communicated and connected with a cleaning liquid filler 21 through a pipeline, a first valve 22 is arranged on the pipeline, the hot water storage tank 18 is communicated and connected with a heat supply pipeline in a user area 16 through a pipeline to form a loop, and a second hot water circulating pump 20 and a first hot water circulating pump 19 are respectively arranged on a water supply pipeline and a water return pipeline between the hot water storage tank 18 and the user area 16; a water inlet of the waste heat exchanger 10 is communicated and connected with a waste heat absorption water tank 4 through a pipeline, a waste heat absorption water circulating pump 7 is installed on the pipeline between the waste heat absorption water tank 4 and the waste heat exchanger 10, a water outlet of the waste heat exchanger 10 is communicated and connected with a water inlet of a condensation heat exchanger 6 in a condenser 8 through a pipeline, a water outlet of the condensation heat exchanger 6 is communicated and connected with the waste heat absorption water tank 4 through a pipeline, and a cooling fan 5 is installed at the top of the condenser 8; the water inlet of the refrigeration evaporator 11 is connected with a cold water storage tank 14 through a pipeline in a communicating manner, a second cold water circulating pump 17 is installed on a pipeline between the cold water storage tank 14 and the refrigeration evaporator 11, the water outlet of the refrigeration evaporator 11 is connected with the cold water storage tank 14 through a pipeline in a communicating manner, the cold water storage tank 14 is connected with a refrigeration pipeline in a user area 16 through a pipeline in a communicating manner to form a loop, a first cold water circulating pump 15 is installed on a water supply pipeline of the user area 16, and the control center 1 and the distribution box 2 are respectively connected with the heat radiating fan 5, the waste heat absorption water circulating pump 7, the heat recovery unit 9, the first cold water circulating pump 15, the second cold water circulating pump 17, the first hot water circulating pump 19 and the second hot water circulating pump 20 in an electrically connecting manner.

The heat recovery unit 9 comprises a heat exchange tank 901, the heat exchange tank 901 is divided into an inner cavity and an outer cavity, the inner cavity is communicated and connected with a refrigerant liquid inlet pipe 907 and a refrigerant liquid outlet pipe 908, the refrigerant liquid inlet pipe 907 is communicated and connected with the refrigeration compressor 3, the refrigerant liquid outlet pipe 908 is communicated and connected with the waste heat exchanger 10, two ends of the heat exchange tank 901 are respectively fixedly connected with a left end cover 913 and a right end cover 914 in a sealing manner through an end cover connecting chuck 905, the left end cover 913 is fixedly connected with a hot water return pipe 902, the hot water return pipe 902 is communicated and connected with the outer cavity of the heat exchange tank 901 through the left end cover 913, the hot water return pipe 902 is fixedly installed through a pipeline fixing buckle 24, the other end of the hot water return pipe 902 is communicated and connected with the hot water storage tank 18 and is provided with a second valve 23, the lower end of the second valve 23 is communicated and connected with a cleaning liquid filling pipe 911 on the hot water return pipe 902, the cleaning liquid filling pipe 911 is connected with the cleaning liquid filler 21 in a communicating manner, the cleaning liquid filling pipe 911 is fixedly installed through the pipeline fixing buckle 24, the first valve 22 is installed on the cleaning liquid filling pipe 911, the right end cover 914 is fixedly connected with a hot water transition communicating pipe 903 and a liquid discharging pipe 912, the hot water transition communicating pipe 903 and the liquid discharging pipe 912 are respectively connected with the outer layer cavity of the heat exchange tank body 901 through the right end cover 914 in a communicating manner, the liquid discharging pipe 912 is provided with a third valve 25, the heat exchange tank body 901 is provided with a safety valve 909, the other end of the hot water transition communicating pipe 903 is connected with the liquid outlet of the heat exchange circulating pump 906 in a communicating manner, the hot water transition communicating pipe 903 is provided with a damping pipe 904 and a fourth valve 26 and is fixedly installed through the pipeline fixing buckle 24, and the liquid inlet of the heat exchange circulating pump 906 is connected with a hot water inlet pipe 910 in a communicating manner, the other end of the hot water inlet pipe 910 is connected to the hot water storage tank 18, and the heat exchange circulation pump 906 is fixedly installed on the upper portion of the heat exchange tank 901.

The heat recovery unit 9, the waste heat exchanger 10 and pipelines for communicating the devices in the system are all made of stainless steel.

The utility model discloses a theory of operation: the operation of the whole system is controlled by the control center 1, when refrigeration is provided for a user area 16, cold water in a cold water storage tank 14 is pumped into a refrigeration pipeline of the user area 16 through a first cold water circulating pump 15 to enable the cold water to absorb heat and flow back to the cold water storage tank 14, then the cold water is pumped into a refrigeration evaporator 11 through a second cold water circulating pump 17, hot water absorbing heat in the refrigeration evaporator 11 exchanges heat with refrigerant in the refrigeration evaporator 11, the hot water flows back into the cold water storage tank 14 for refrigeration after heat dissipation, the refrigerant absorbing heat enters a refrigeration compressor 3 and is conveyed into a heat recovery unit 9 through a refrigerant liquid inlet pipe 907 under pressure, the refrigerant absorbing heat in the heat recovery unit 9 exchanges heat with cold water in the cold water storage tank 14, so that the temperature of the refrigerant is reduced, and the refrigerant enters a waste heat exchanger 10 through a refrigerant liquid outlet pipe 908 to further exchange heat with the cold water in the waste heat exchanger, the refrigerant with the finally lowered temperature passes through the dry filter 12 and the thermostatic expansion valve 13 and then enters the refrigeration evaporator 11 again for heat absorption and refrigeration. The cold water absorbing heat in the waste heat exchanger 10 enters the condensing heat exchanger 6 to dissipate heat, the dissipated waste heat is discharged through the cooling fan 5, and the cooled cold water enters the waste heat absorbing water tank 4 and is pumped into the waste heat exchanger 10 again through the waste heat absorbing water circulating pump 7 to absorb the waste heat in the refrigerant. The cold water absorbed by the heat recovery unit 9 becomes hot water, and enters the hot water storage tank 18 through the hot water return pipe 902, and is pumped to the user area 16 by the second hot water circulation pump 20 for use, and the cooled hot water in the user area 16 is pumped to the hot water storage tank 18 by the first hot water circulation pump 19, and is then pumped into the heat exchange tank 901 by the heat exchange circulation pump 906 through the hot water transition connection pipe 903 to exchange heat with the refrigerant with higher temperature in the heat exchange tank to become hot water, so as to realize circulation. When scale formed in the heat recovery unit 9 needs to be cleaned, the system may be shut down, the second valve 23 and the fourth valve 26 are closed, the third valve 25 is opened to drain water in the heat exchange tank 901, then the third valve 25 is closed, the first valve 22 and the cleaning liquid filler 21 are opened again, the cleaning liquid filler 21 fills cleaning liquid into the heat exchange tank 901 to clean, then the third valve 25 is opened to drain the cleaned cleaning liquid, the end cover connecting chuck 905 is opened to remove the left end cover 913 and the right end cover 914 to further clean the interior of the heat exchange tank 901, and after the cleaning is completed, the left end cover 913 and the right end cover 914 are fixedly mounted through the end cover connecting chuck 905 again.

Components and circuit connections not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. The utility model provides an energy-saving double temperature regulation heat recovery system, includes control center (1), block terminal (2), compressor (3), condenser (8), its characterized in that, control center (1) install in block terminal (2) and with compressor (3) electric connection, the refrigerant import of compressor (3) liquid outlet through pipeline intercommunication connection heat recovery unit (9), the refrigerant import of waste heat exchanger (10) is connected through the pipeline intercommunication in the refrigerant export of waste heat exchanger (10), install drier-filter (12), thermal expansion valve (13) along refrigerant circulation direction in proper order on the pipeline between waste heat exchanger (10) and the refrigeration evaporimeter (11), a refrigerant outlet of the refrigeration evaporator (11) is communicated and connected to a liquid inlet of the refrigeration compressor (3) through a pipeline; a water inlet and a water outlet of the heat recovery unit (9) are respectively communicated and connected with a hot water storage tank (18) through pipelines, the water outlet of the heat recovery unit (9) is communicated and connected with a cleaning liquid filler (21) through a pipeline, a first valve (22) is arranged on the pipeline, the hot water storage tank (18) is communicated and connected with a heat supply pipeline in a user area (16) through a pipeline to form a loop, and a second hot water circulating pump (20) and a first hot water circulating pump (19) are respectively arranged on a water supply pipeline and a water return pipeline between the hot water storage tank (18) and the user area (16); a water inlet of the waste heat exchanger (10) is communicated and connected with a waste heat absorption water tank (4) through a pipeline, a waste heat absorption water circulating pump (7) is installed on the pipeline between the waste heat absorption water tank (4) and the waste heat exchanger (10), a water outlet of the waste heat exchanger (10) is communicated and connected with a water inlet of a condensation heat exchanger (6) in a condenser (8) through a pipeline, a water outlet of the condensation heat exchanger (6) is communicated and connected with the waste heat absorption water tank (4) through a pipeline, and a cooling fan (5) is installed at the top of the condenser (8); the water inlet of the refrigeration evaporator (11) is connected with a cold water storage tank (14) through a pipeline in a communicating manner, a second cold water circulating pump (17) is installed on the pipeline between the cold water storage tank (14) and the refrigeration evaporator (11), a water outlet of the refrigeration evaporator (11) is connected with the cold water storage tank (14) through a pipeline in a communicating manner, the cold water storage tank (14) is connected with a refrigeration pipeline in a user area (16) through a pipeline in a communicating manner to form a loop, the cold water storage tank (14) leads to a water supply pipeline of the user area (16) to be provided with a first cold water circulating pump (15), the control center (1) and the distribution box (2) are respectively connected with the radiating fan (5), the waste heat absorption water circulating pump (7), the heat recovery unit (9), the first cold water circulating pump (15), the second cold water circulating pump (17), The first hot water circulating pump (19) and the second hot water circulating pump (20) are electrically connected.

2. An energy efficient dual temperature regulated heat recovery system according to claim 1 further comprising: the heat recovery unit (9) comprises a heat exchange tank body (901), the heat exchange tank body (901) is divided into an inner cavity and an outer cavity, the inner cavity is communicated and connected with a refrigerant liquid inlet pipe (907) and a refrigerant liquid outlet pipe (908), the refrigerant liquid inlet pipe (907) is communicated and connected with the refrigeration compressor (3), the refrigerant liquid outlet pipe (908) is communicated and connected with the waste heat exchanger (10), two ends of the heat exchange tank body (901) are respectively fixedly connected with a left end cover (913) and a right end cover (914) in a sealing manner through an end cover connecting chuck (905), the left end cover (913) is fixedly connected with a hot water return pipe (902), the hot water return pipe (902) is communicated and connected with the outer cavity of the heat exchange tank body (901) through the left end cover (913), and the hot water return pipe (902) is fixedly installed through a pipeline fixing buckle (24), the other end of the hot water return pipe (902) is communicated and connected with the hot water storage tank (18) and is provided with a second valve (23), the lower end of the second valve (23) is communicated and connected with a cleaning liquid filling pipe (911) on the hot water return pipe (902), the cleaning liquid filling pipe (911) is communicated and connected with the cleaning liquid filling device (21), the cleaning liquid filling pipe (911) is fixedly installed through the pipeline fixing buckle (24), the first valve (22) is installed on the cleaning liquid filling pipe (911), the right end cover (914) is fixedly connected with a hot water transition communicating pipe (903) and a liquid discharge pipe (912), the hot water transition communicating pipe (903) and the liquid discharge pipe (912) are respectively communicated and connected with the outer layer of the cavity of the heat exchange tank body (901) through the right end cover (914), and the liquid discharge pipe (912) is provided with a third valve (25), the heat exchange tank body (901) is provided with a safety valve (909), the other end of the hot water transition communicating pipe (903) is communicated and connected with a liquid outlet of a heat exchange circulating pump (906), the hot water transition communicating pipe (903) is provided with a damping pipe (904) and a fourth valve (26) and is fixedly installed through the pipeline fixing buckle (24), a liquid inlet of the heat exchange circulating pump (906) is communicated and connected with a hot water inlet pipe (910), the other end of the hot water inlet pipe (910) is communicated and connected with the hot water storage tank (18), and the heat exchange circulating pump (906) is fixedly installed at the upper part of the heat exchange tank body (901).

3. An energy efficient dual temperature regulated heat recovery system according to claim 1 further comprising: the heat recovery unit (9), the waste heat exchanger (10) and pipelines for communicating the devices in the system are all made of stainless steel.