CN213984162U - Cold energy recovery system and container type cold energy recovery equipment with same - Google Patents

Cold energy recovery system and container type cold energy recovery equipment with same Download PDF

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Publication number
CN213984162U
CN213984162U CN202023176570.6U CN202023176570U CN213984162U CN 213984162 U CN213984162 U CN 213984162U CN 202023176570 U CN202023176570 U CN 202023176570U CN 213984162 U CN213984162 U CN 213984162U
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cold energy
refrigerant
energy recovery
pipeline
heat exchange
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CN202023176570.6U
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Chinese (zh)
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刘勇
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Chongqing Paichi Energy Saving Technology Co ltd
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Chongqing Paichi Energy Saving Technology Co ltd
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Abstract

The utility model discloses a cold energy recovery system, which comprises a heat exchange water tank, a first refrigerant pipeline, a refrigerant tank, a circulating pump, a water pump and a control module, wherein the inner cavity of the heat exchange water tank is provided with the heat exchange pipeline, and the heat exchange water tank is connected with a water inlet pipeline and a water outlet pipeline; the cold energy recovery device, the heat exchange pipeline and the refrigerant box are connected through the pipeline head to form a loop, a first refrigerant pipeline is connected between the heat exchange water tank and the cold energy recovery device, a third refrigerant pipeline is connected between the refrigerant box and the cold energy recovery device, and the circulating pump is arranged on the first refrigerant pipeline or the third refrigerant pipeline; the water pump is arranged on the water inlet pipeline or the water outlet pipeline; the control module is respectively electrically connected with the water pump and the circulating pump. Through above-mentioned structure, drive the refrigerant by water pump and circulating pump and flow, realize the refrigerant after the temperature is controllable around cold energy is retrieved, further recycle cold energy through setting up heat exchange water tank, cold energy recovery efficiency effectively improves.

Description

Cold energy recovery system and container type cold energy recovery equipment with same
Technical Field
The utility model relates to a cold energy recovery field, in particular to cold energy recovery system and container formula cold energy recovery plant who has it.
Background
Generally, a cold energy recovery device is composed of a refrigerant tank, a circulation pump, a refrigerant, a control module and the like. However, when the cold energy recovery device is used for recovering cold energy of an LNG (liquefied oxygen, liquid nitrogen and liquid argon) gasification bottle filling station and an industrial gas (LNG temperature is-145 ℃), the flow, the freezing point and the specific heat capacity of a refrigerant cannot meet the requirement of cold energy recovery due to the ultralow temperature characteristic of a cold source medium and the cold energy change caused by the medium flow change, the temperature of the refrigerant before and after cold energy is unstable, the cold energy recovery rate of the cold source is low, and large blocks of ice often occur when the temperature of the refrigerant is lower than the freezing point of the refrigerant.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a cold energy recovery system, can solve the problem that cold energy recycle in-process cold energy rate of recovery is low.
The utility model discloses still provide including the box and have above-mentioned cold energy recovery system's container formula cold energy recovery plant.
According to the utility model discloses a cold energy recovery system of first aspect embodiment, including heat exchange water tank, first refrigerant pipeline, refrigerant case, circulating pump, water pump and control module.
In this embodiment, the inner cavity of the heat exchange water tank is provided with a heat exchange pipeline, and the heat exchange water tank is connected with a water inlet pipeline and a water outlet pipeline; the first refrigerant pipeline is connected with the heat exchange pipeline, and a first interface for connecting the cold energy recovery device is arranged on the first refrigerant pipeline; a second refrigerant pipeline is connected between the refrigerant box and the heat exchange pipeline, the refrigerant box is also connected with a third refrigerant pipeline, and the third refrigerant pipeline is provided with a second interface for connecting a cold energy recovery device; the circulating pump is arranged on the first refrigerant pipeline or the third refrigerant pipeline; the water pump is arranged on the water inlet pipeline or the water outlet pipeline; the control module is respectively electrically connected with the water pump and the circulating pump.
In this embodiment, the heat exchange pipeline includes two main pipes and branch pipes, the two main pipes are arranged in parallel, the first refrigerant pipeline is connected with one main pipe, and the second refrigerant pipeline is connected with the other main pipe; the branch pipes are arranged between the two main pipes and are more than two, the more than two branch pipes are sequentially arranged along the axial direction of the main pipes, one end of each branch pipe is connected with one main pipe, and the other end of each branch pipe is connected with the other main pipe, so that the heat exchange of the refrigerant is more sufficient.
In some embodiments, the control module has a temperature sensor signal interface and a flow sensor signal interface.
In this embodiment, heat exchange water tank's top is provided with spray assembly, and spray assembly is connected with the inlet channel.
In this embodiment, the circulation pump is a variable frequency pump.
In this embodiment, still including sweeping the mechanism, sweep the inlet line that the mechanism includes the air supply subassembly and is connected with the air supply subassembly, be equipped with the third interface that is used for connecting cold energy recovery unit on the inlet line to make air supply subassembly, heat exchange water tank and refrigerant case link to each other in order through each pipeline and form the return circuit.
According to the utility model discloses cold energy recovery system has following beneficial effect at least: through above-mentioned structure, by the rivers flow in the water pump drive heat transfer water tank, the circulating pump drive refrigerant flows, realizes that the refrigerant is after the temperature is controllable around cold energy is retrieved, through setting up the further recycle cold energy of heat transfer water tank, cold energy recovery efficiency effectively improves.
According to the utility model discloses a container formula cold energy recovery plant of second aspect embodiment, it includes the box and has as the embodiment of the utility model discloses a cold energy recovery system.
According to the utility model discloses container formula cold energy recovery plant has following beneficial effect at least: through above-mentioned structure, cold energy recovery system sets up in the box, is convenient for remove, and the rivers that are in driving the heat transfer water tank by the water pump again flow, and circulating pump drive refrigerant flows, realizes that the refrigerant is after the temperature is controllable around cold energy is retrieved, through setting up the further recycle cold energy of heat transfer water tank, and cold energy recovery efficiency effectively improves.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of a cold energy recovery system and a container type cold energy recovery device;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a block circuit diagram of a cold energy recovery system;
fig. 4 is a schematic structural diagram of a spray assembly of the cold energy recovery system.
Reference numerals: the heat exchange water tank 100, the heat exchange pipeline 110, the main pipe 111, the branch pipe 112, the first refrigerant pipeline 120, the water inlet pipeline 130, the water outlet pipeline 140, the spray assembly 150, the spray pipe 151, the spray joint 152, the through hole 153, the refrigerant tank 200, the second refrigerant pipeline 210, the third refrigerant pipeline 220, the cold energy recovery device 300, the first interface 310, the second interface 320, the third interface 330, the control module 400, the circulating pump 410, the water pump 420, the temperature sensor signal interface 430, the flow sensor signal interface 440, the purging mechanism 500, the air inlet pipeline 510 and the air source assembly 520.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, according to the utility model discloses a cold energy recovery system, including heat exchange water tank 100, first refrigerant pipeline 120, refrigerant case 200, circulating pump 410, water pump 420 and control module 400.
The inner cavity of the heat exchange water tank 100 is provided with a heat exchange pipeline 110, and the heat exchange water tank 100 is connected with a water inlet pipeline 130 and a water outlet pipeline 140; the first refrigerant pipeline 120 is connected with the heat exchange pipeline 110, and a first connector 310 for connecting the cold energy recovery device 300 is arranged on the first refrigerant pipeline 120; a second refrigerant pipeline 210 is connected between the refrigerant box 200 and the heat exchange pipeline 110, the refrigerant box 200 is also connected with a third refrigerant pipeline 220, and the third refrigerant pipeline 220 is provided with a second interface 320 for connecting the cold energy recovery device 300; the circulation pump 410 is disposed on the first refrigerant pipe 120 or the third refrigerant pipe 220; the water pump 420 is disposed on the water inlet pipe 130 or the water outlet pipe 140, and the control module 400 is electrically connected to the water pump 420 and the circulation pump 410.
Specifically, the water pump 420 and the heat exchange water tank 100 are connected end to end through a pipeline to form a loop, and the heat exchange water tank 100, the refrigerant tank 200 and the cold energy recovery device 300 are connected end to end through a pipeline to form a loop, so that the refrigerant flows among the heat exchange water tank 100, the refrigerant tank 200 and the cold energy recovery device 300.
Referring to fig. 2, the heat exchange pipe 110 includes a main pipe 111 and a branch pipe 112, the main pipe 111 is provided in two, the two main pipes 111 are arranged in parallel, the first refrigerant pipe 120 is connected to one main pipe 111, and the second refrigerant pipe 210 is connected to the other main pipe 111; the branch pipes 112 are located between the two main pipes 111 and are arranged into more than two, the more than two branch pipes 112 are sequentially arranged along the axial direction of the main pipes 111, the more than two branch pipes 112 are arranged in parallel, one end of each branch pipe 112 is connected with one main pipe 111, and the other end of each branch pipe 112 is connected with the other main pipe 111, so that heat exchange of the refrigerant is more sufficient.
Referring to fig. 3, the control module 400 is electrically connected to the water pump 420 and the circulation pump 410, the control module 400 has a temperature sensor signal interface 430 and a flow sensor signal interface 440, the control module 400 can control the water pump 420 to drive the water in the heat exchange water tank to flow, and the control module 400 can control the circulation pump 410 to drive the refrigerant to flow.
Preferably, the control module 400 can be a PLC (programmable logic controller), the flow sensor signal interface 440 is electrically connected to a flow sensor (not shown), and the temperature sensor signal interface 430 is electrically connected to a temperature sensor (not shown).
Referring to fig. 4, a spray assembly 150 is disposed at the top of the heat exchange water tank 100, and the spray assembly 150 is connected to the water inlet pipe 140. Specifically, the spray assembly 150 includes a spray joint 152 and a spray pipe 151, the spray pipe 151 has more than two through holes 153 arranged transversely, and the water inlet pipe 130, the spray assembly 150, the water pump 420 and the water outlet pipe 140 are connected in series in sequence.
The water pump 420 is a non-variable frequency pump, and the water pump 420 pumps out water in the heat exchange water tank 100, and then sprays the water through the water inlet pipe 140 from the spraying assembly 150 to flow the water entering the water inlet pipe 130, so that the temperature of the refrigerant is stable.
Preferably, circulating pump 410 is the inverter pump, and the sensor can be installed on cold energy recovery unit 300 for detect the temperature and the flow of the cold source of cold energy recovery unit 300 of flowing through, and when flow sensor detected the cold source flow too little, temperature sensor detected the refrigerant temperature and crossed when low excessively, control module 400 control circulating pump 410 increased the rotational speed, promoted refrigerant output quantity, reached cold source cold volume and refrigerant heat transfer volume equilibrium, realized that the refrigerant is temperature stable after cold energy retrieves.
In this embodiment, the purging device 500 is further included, the purging device 500 includes an air source assembly 520 and an air inlet pipe 510 connected to the air source assembly 520, and the air inlet pipe 510 is provided with a third connector 330 for connecting the cold energy recovery device 300, so that the air source assembly 520, the heat exchange water tank 100 and the refrigerant tank 200 are sequentially connected through pipes to form a loop.
Optionally, the air source assembly 520 may use nitrogen, and when the cold energy recovery is stopped, the control module 400 controls the air source assembly 520 to input dry nitrogen into the air inlet pipe 510 to blow the refrigerant into the refrigerant box 200 from the cold energy recovery device 300, so as to prevent the refrigerant from staying in the cold energy recovery device 300 for a long time and being supercooled and frozen, thereby preventing the pipeline from being unsmooth.
The utility model discloses a working method as follows: the water pump 420 drives water in the heat exchange water tank 100 to flow, the circulating pump 410 drives a refrigerant to flow, and water in the water inlet pipeline is sprayed out through the spraying assembly 150, so that the heat exchange water tank 100 can stabilize the refrigerant in a proper range, the heat exchange rate of the refrigerant and a cold source is prevented from being reduced due to unstable temperature of the refrigerant, and the recovery rate of cold energy can be improved; the water in the heat exchange water tank can exchange heat with the refrigerant to absorb the cold energy of the refrigerant, so that the temperature of the refrigerant is increased, the temperature difference between the refrigerant and a cold source is increased, and the cold energy recovery rate is improved.
When stopping cold energy recovery, control module 400 controls air supply assembly 520 and passes through admission line 510 to the dry nitrogen gas of third interface 330 inner chamber input of cold energy recovery unit 300, insufflate refrigerant case 200 from cold energy recovery unit 300 with the refrigerant, avoid the refrigerant to stop for a long time in cold energy recovery unit 300 supercooling and freeze, influence cold energy recovery, the temperature of refrigerant before and after cold energy recovery realizes controllable back, after further recycle cold energy through setting up heat exchange water tank 100, cold energy recovery efficiency effectively improves.
According to the utility model discloses container formula cold energy recovery plant, including box (not shown in the figure) and the utility model discloses the cold energy recovery system, wherein, cold energy recovery system locates in the box.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but 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 of those skilled in the art.

Claims (8)

1. Cold energy recovery system, characterized in that includes:
the heat exchange water tank (100) is characterized in that a heat exchange pipeline (110) is arranged in an inner cavity of the heat exchange water tank (100), and the heat exchange water tank (100) is connected with a water inlet pipeline (130) and a water outlet pipeline (140);
the first refrigerant pipeline (120), the first refrigerant pipeline (120) is connected with the heat exchange pipeline (110), and a first connector (310) for connecting the cold energy recovery device (300) is arranged on the first refrigerant pipeline (120);
the heat exchanger comprises a refrigerant box (200), wherein a second refrigerant pipeline (210) is connected between the refrigerant box (200) and a heat exchange pipeline (110), the refrigerant box (200) is also connected with a third refrigerant pipeline (220), and the third refrigerant pipeline (220) is provided with a second interface (320) for connecting a cold energy recovery device (300);
the circulating pump (410), the circulating pump (410) is set on the first refrigerant pipeline (120) or the third refrigerant pipeline (220);
the water pump (420), the water pump (420) is arranged on the water inlet pipeline (130) or the water outlet pipeline (140);
the water pump system comprises a control module (400), wherein the control module (400) is electrically connected with a water pump (420) and a circulating pump (410) respectively.
2. The cold energy recovery system according to claim 1, wherein the heat exchange pipes (110) comprise a main pipe (111) and branch pipes (112), the main pipe (111) is provided in two and arranged in parallel, the first refrigerant pipe (120) is connected to one main pipe (111), the second refrigerant pipe (210) is connected to the other main pipe (111), the branch pipes (112) are provided in more than two between the two main pipes (111), the more than two branch pipes (112) are sequentially arranged along the axial direction of the main pipe (111), one end of each branch pipe (112) is connected to one main pipe (111), and the other end of each branch pipe (112) is connected to the other main pipe (111).
3. The cold energy recovery system of claim 1, wherein the control module (400) has a temperature sensor signal interface (430) and a flow sensor signal interface (440).
4. A cold energy recovery system according to claim 1 or 3, wherein the circulation pump (410) is a variable frequency pump.
5. The cold energy recovery system according to claim 1, wherein a spray assembly (150) is arranged on the top of the heat exchange water tank (100), and the spray assembly (150) is connected with the water inlet pipe (130).
6. The cold energy recovery system according to claim 5, wherein the spray assembly (150) comprises a spray pipe (151) and a spray joint (152), the spray pipe (151) having more than two through holes (153).
7. The cold energy recovery system according to claim 1, further comprising a purging mechanism (500), wherein the purging mechanism (500) comprises an air source assembly (520) and an air inlet pipeline (510) connected to the air source assembly (520), and the air inlet pipeline (510) is provided with a third interface (330) for connecting the cold energy recovery device (300).
8. Container type cold energy recovery apparatus, comprising a box body and a cold energy recovery system according to any one of claims 1 to 7, said cold energy recovery system being provided in the box body.
CN202023176570.6U 2020-12-25 2020-12-25 Cold energy recovery system and container type cold energy recovery equipment with same Active CN213984162U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023176570.6U CN213984162U (en) 2020-12-25 2020-12-25 Cold energy recovery system and container type cold energy recovery equipment with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023176570.6U CN213984162U (en) 2020-12-25 2020-12-25 Cold energy recovery system and container type cold energy recovery equipment with same

Publications (1)

Publication Number Publication Date
CN213984162U true CN213984162U (en) 2021-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023176570.6U Active CN213984162U (en) 2020-12-25 2020-12-25 Cold energy recovery system and container type cold energy recovery equipment with same

Country Status (1)

Country Link
CN (1) CN213984162U (en)

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