CN214620160U - Low-temperature cold water refrigerating unit - Google Patents
Low-temperature cold water refrigerating unit Download PDFInfo
- Publication number
- CN214620160U CN214620160U CN202023248487.5U CN202023248487U CN214620160U CN 214620160 U CN214620160 U CN 214620160U CN 202023248487 U CN202023248487 U CN 202023248487U CN 214620160 U CN214620160 U CN 214620160U
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- Prior art keywords
- refrigerant
- water
- low
- cavity
- liquid
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- Withdrawn - After Issue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 239000003507 refrigerant Substances 0.000 claims abstract description 141
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 238000001704 evaporation Methods 0.000 claims description 29
- 230000008020 evaporation Effects 0.000 claims description 27
- 238000002955 isolation Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of chilled water storage, specifically disclose a low temperature cold water refrigerating unit, including the compressor, refrigerant high pressure liquid pipeline and refrigerant low pressure gaseous state pipeline that are connected with the compressor, set up the condenser between refrigerant high pressure liquid pipeline and compressor, with a plurality of evaporimeters of refrigerant high pressure liquid pipeline parallelly connected, and set up respectively in the choke valve of the liquid entry of the refrigerant of a plurality of evaporimeters, the choke valve is connected with refrigerant high pressure liquid pipeline, a plurality of evaporimeters are connected with refrigerant low pressure gaseous state pipeline respectively, the water route of a plurality of evaporimeters is established ties mutually. The low-temperature cold water refrigerating unit designed in the mode can meet the low-temperature water outlet requirement of the low-temperature cold water refrigerating unit through the arrangement of the plurality of evaporators, and the evaporators cannot be frozen.
Description
Technical Field
The utility model relates to a chilled water storage technical field especially relates to a low temperature cold water refrigerating unit.
Background
The wide low-temperature water demand below 3 ℃ exists in the civil building field of large-temperature difference water cold accumulation and supply and the industrial chilled water field. However, the existing electric refrigeration water chilling unit adopting the reverse Carnot cycle principle is technically difficult to break through the outlet water temperature below 3 ℃, and the evaporator of the refrigeration main machine is frozen due to the excessively low outlet water temperature, so that the heat exchange copper pipe of the evaporator is frozen or blocked, and the work of the refrigeration main machine must be stopped. Generally, in order to obtain the chilled water with the temperature below 3 ℃, the chilled water is finished by using a glycol antifreeze solution system, so that the cost and the energy consumption of a refrigerating system are increased, and the utility model discloses a refrigerating main machine capable of directly discharging water at low temperature is always pursued in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-temperature cold water refrigerating unit which can realize the low-temperature water outlet requirement of the low-temperature cold water refrigerating unit through the arrangement of a plurality of evaporators and can not cause the evaporators to freeze;
to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a low temperature cold water refrigerating unit, including the compressor, with refrigerant high pressure liquid pipeline and refrigerant low pressure gaseous state pipeline that the compressor is connected, set up in refrigerant high pressure liquid pipeline with condenser between the compressor, with a plurality of evaporimeters that refrigerant high pressure liquid pipeline is parallelly connected and set up respectively in a plurality of the choke valve of the liquid entry of refrigerant of evaporimeter, the choke valve with refrigerant high pressure liquid pipeline is connected, and is a plurality of the evaporimeter respectively with refrigerant low pressure gaseous state pipeline is connected, and is a plurality of the water route of evaporimeter is established ties mutually.
The plurality of evaporators comprise vertical evaporators and horizontal evaporators, the water paths of the vertical evaporators are connected in series, the water paths of the vertical evaporators are arranged at the downstream of the water paths of the horizontal evaporators, and the pressure drop of water flows of the vertical evaporators and the horizontal evaporators after being connected in series is gradually increased from the upstream to the downstream.
The vertical evaporator comprises an upper water inlet and outlet, an upper water distribution cavity, a refrigerant liquid caching cavity, a refrigerant evaporation cavity, a lower water distribution cavity, a lower water inlet and outlet, a plurality of heat exchange tubes penetrating through the refrigerant liquid caching cavity and the refrigerant evaporation cavity, a liquid refrigerant guiding structure matched with the refrigerant liquid caching cavity and a gaseous refrigerant recovery structure matched with the refrigerant evaporation cavity, wherein the upper water distribution cavity, the refrigerant liquid caching cavity, the refrigerant evaporation cavity, the lower water inlet and outlet, the plurality of heat exchange tubes, the liquid refrigerant guiding structure and the gaseous refrigerant recovery structure are arranged from top to bottom along the length direction of a shell cavity; the two ends of the heat exchange tubes are respectively communicated with the upper water distribution cavity and the lower water distribution cavity.
The water distributor comprises a shell, a water distributor and a water distributor, wherein an upper water distribution end and a lower water distribution end are respectively arranged at two ends of the shell, and an upper partition plate, a screen plate and a lower partition plate are arranged in parallel in a cavity of the shell at intervals from top to bottom; the heat exchange tubes vertically penetrate through the screen plate, and two ports of the heat exchange tubes are respectively exposed out of the upper isolation plate and the lower isolation plate; the peripheral surfaces of the heat exchange tubes are in clearance fit with the corresponding plate holes distributed on the screen plate.
The liquid refrigerant leading-in structure comprises an annular refrigerant storage cavity, a first annular guide pipe and a first U-shaped guide pipe, wherein the annular refrigerant storage cavity is arranged in the refrigerant liquid cache cavity, the first annular guide pipe is sleeved on the periphery of the shell, the first U-shaped guide pipe is communicated with the first annular guide pipe and the refrigerant high-pressure liquid input pipeline respectively, the first annular guide pipe is communicated with the annular refrigerant storage cavity, and a plurality of liquid injection holes communicated with the refrigerant liquid cache cavity are uniformly distributed on the circumferential direction of the cavity wall of the annular refrigerant storage cavity.
The gaseous refrigerant recovery structure comprises a second annular guide pipe sleeved on the periphery of the shell and a second U-shaped guide pipe communicated with the second annular guide pipe and the refrigerant low-pressure gaseous output pipeline respectively; and a plurality of gaseous refrigerant outlets communicated with the refrigerant evaporation cavity are uniformly distributed on the second annular guide pipe.
The total area of the liquid injection holes is smaller than the area of a refrigerant liquid inlet of the first annular conduit; the total area of the gaps between the heat exchange tubes and the corresponding plate holes is smaller than that of the liquid injection holes.
Wherein, the peripheral surface of the heat exchange tube is provided with a spiral groove along the length direction.
The water-saving type evaporator comprises a horizontal evaporator, a water pump and a water outlet, wherein the water pump is connected with a water channel of the horizontal evaporator, and the water outlet of the water pump is communicated with the water inlet of the horizontal evaporator.
The utility model has the advantages that: the utility model provides a low temperature cold water refrigerating unit, including the compressor, refrigerant high pressure liquid pipeline and refrigerant low pressure gaseous state pipeline that are connected with the compressor, set up the condenser between refrigerant high pressure liquid pipeline and compressor, a plurality of evaporimeters parallelly connected with refrigerant high pressure liquid pipeline, and set up respectively in the choke valve of the liquid entry of the refrigerant of a plurality of evaporimeters, the choke valve is connected with refrigerant high pressure liquid pipeline, a plurality of evaporimeters are connected with refrigerant low pressure gaseous state pipeline respectively, the water route of a plurality of evaporimeters is established ties mutually. The low-temperature cold water refrigerating unit designed in the mode can meet the low-temperature water outlet requirement of the low-temperature cold water refrigerating unit through the arrangement of the plurality of evaporators, and the evaporators cannot be frozen.
Drawings
Fig. 1 is a schematic view of the structural connection of the low-temperature cold water refrigerating unit of the present invention.
Fig. 2 is a sectional view of the shaft section of the neutral evaporator of fig. 1.
Fig. 3 is an exploded view of fig. 2 with the upper and lower break-out tips removed.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is an isometric view of the neutral evaporator of fig. 1.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present embodiment provides a low-temperature cold water refrigeration unit, including a compressor 901, a refrigerant high-pressure liquid pipeline 902 and a refrigerant low-pressure gaseous pipeline 903 connected to the compressor 901, a condenser 904 disposed between the refrigerant high-pressure liquid pipeline 902 and the compressor 901, a plurality of evaporators connected in parallel to the refrigerant high-pressure liquid pipeline 902, and throttle valves 905 respectively disposed at refrigerant liquid inlets of the plurality of evaporators, where the throttle valves 905 are connected to the refrigerant high-pressure liquid pipeline 902, the plurality of evaporators are respectively connected to the refrigerant low-pressure gaseous pipeline 903, and water paths of the plurality of evaporators are connected in series. With this structural design's low temperature cold water refrigerating unit, can be through setting up and control to a plurality of evaporimeters, effectively adjust low temperature cold water refrigerating unit's leaving water temperature, make low temperature cold water refrigerating unit's leaving water temperature keep invariable relatively in certain extent then, can also effectively avoid causing low temperature cold water refrigerating unit to break down because of the unbalanced local icing that leads to of low reaches evaporimeter evaporating temperature.
More specifically, the plurality of evaporators in the present embodiment include a vertical evaporator 906 and a horizontal evaporator 907 connected in series in a water path, the water path of the vertical evaporator 906 is disposed downstream of the water path of the horizontal evaporator 907, and the pressure drop of the vertical evaporator 906 and the horizontal evaporator 907 connected in series gradually increases from upstream to downstream. Preferably, a water pump 908 is connected to a water channel of the horizontal evaporator 907, and a water outlet of the water pump 908 is communicated with a water inlet of the horizontal evaporator 907. Therefore, the water flow pressure and the water flow speed of the water path of the evaporator, particularly the downstream low-temperature outlet water evaporator are increased, and the possibility of freezing local supercooled water caused by uneven evaporation is reduced.
Further specifically, in this embodiment, in order to further improve the evaporation uniformity of the refrigerant liquid of the upright evaporator 906 and to prevent the upright evaporator 906 at the last stage of chilled water from freezing, as shown in fig. 2 to 5, the upright evaporator 906 in this embodiment includes an upper water inlet and outlet 111, an upper water distribution cavity 1, a refrigerant liquid buffer cavity 2, a refrigerant evaporation cavity 3, a lower water distribution cavity 4, a lower water inlet and outlet 121, a plurality of heat exchange tubes 5 penetrating through the refrigerant liquid buffer cavity 2 and the refrigerant evaporation cavity 3, a liquid refrigerant guiding structure matching the refrigerant liquid buffer cavity 2, and a gaseous refrigerant recovery structure matching the refrigerant evaporation cavity 3, which are arranged from top to bottom along the length direction of the housing cavity; two ends of the heat exchange tubes 5 are respectively communicated with the upper water distribution cavity 1 and the lower water distribution cavity 4.
Specifically, the vertical evaporator 906 with the above structural design is provided with an upper water diversion end 11 and a lower water diversion end 12 at two ends of the shell respectively, and an upper isolation plate 13, a screen plate 14 and a lower isolation plate are arranged in parallel and at intervals from top to bottom in the cavity of the shell; the heat exchange tubes 5 vertically penetrate through the sieve plate 14, and two ports of the heat exchange tubes are respectively exposed out of the upper isolation plate 13 and the lower isolation plate 15; the heat exchange tubes 5 vertically penetrate through the screening plate 14, two ports of the heat exchange tubes are respectively exposed out of the upper isolation plate 13 and the lower isolation plate 15, and gaps are formed between the peripheral surfaces of the heat exchange tubes 5 and plate holes distributed corresponding to the screening plate 14, so that refrigerant liquid flows into the refrigerant evaporation cavity 3 along the outer surfaces of the heat exchange tubes 5 to be uniformly evaporated;
in addition, in order to achieve a good isolation effect by the upper and lower isolation plates 13 and 15, preferably, the outer peripheral surfaces of both ends of the plurality of heat exchange tubes 5 are hermetically fastened to the corresponding upper and lower isolation plates 13 and 15, respectively, and then the chilled water in the upper and lower water diversion cavities 1 and 4 on the sides of the upper and lower isolation plates 13 and 15, respectively, flows through the heat exchange tubes.
In the vertical evaporator 906 with the above structural design, the cavity between the upper partition plate 13 and the upper water diversion end forms the upper water diversion cavity 1, the cavity between the lower partition plate 15 and the lower water diversion end forms the lower water diversion cavity 4, the cavity between the upper partition plate 13 and the screen plate 14 forms the refrigerant liquid buffer cavity 2, and the cavity between the screen plate 14 and the lower partition plate 15 forms the refrigerant evaporation cavity 3. Two ends of the cavity of the heat exchange tubes 5 are respectively communicated with the upper water-dividing cavity 1 and the lower water-dividing cavity 4, so that a water channel of the vertical evaporator 906 is formed.
More specifically, the liquid refrigerant guiding structure in this embodiment includes an annular refrigerant accommodating cavity 61 disposed in the refrigerant liquid buffer cavity 2, a first annular conduit 62 sleeved on the periphery of the housing, and a first U-shaped conduit respectively communicated with the first annular conduit 62 and the refrigerant high-pressure liquid input pipeline, where the first annular conduit 62 is communicated with the annular refrigerant accommodating cavity 61, and a plurality of liquid injection holes 611 communicated with the refrigerant liquid buffer cavity 2 are uniformly distributed on the cavity wall of the annular refrigerant accommodating cavity 61 in the circumferential direction.
Preferably, in the embodiment, the first annular conduit 62 is circumferentially and uniformly provided with a plurality of through holes communicated with the annular refrigerant accommodating cavity 61, so that the refrigerant liquid guided into the first annular conduit 62 along the first U-shaped conduit 63 can be uniformly injected into the annular refrigerant accommodating cavity 61, and then the refrigerant liquid can flow into the refrigerant evaporation cavity 3 along the gaps around the plurality of heat exchange tubes 5 to be uniformly evaporated through the plurality of injection holes 611 uniformly distributed on the cavity wall of the annular refrigerant accommodating cavity 61 and the circumferentially uniform injected refrigerant liquid buffer cavity 2. Preferably, the annular refrigerant accommodating chamber 61 in this embodiment is formed by combining an annular groove provided in the refrigerant liquid buffer chamber 2 and a sealing cover 612 engaged with the annular groove, and the sealing cover 612 is pressed by the upper partition plate 13.
In order to further improve the evaporation uniformity of the refrigerant liquid and effectively control the flow rate and the speed of the refrigerant liquid injected into the refrigerant liquid buffer chamber 2, preferably, the total area of the plurality of injection holes 611 in the present embodiment is smaller than the inlet area of the plurality of through holes communicating the first annular conduit 62 with the annular refrigerant accommodating chamber 61.
Furthermore, in order to further improve the uniformity of refrigerant liquid evaporating along the length direction of the heat exchange tube 5 and improve the heat exchange efficiency, preferably, the outer peripheral surface of the heat exchange tube 5 is provided with a first spiral groove convenient for the refrigerant liquid to uniformly evaporate along the length direction, and the total area of the gaps between the outer peripheral surfaces of the heat exchange tubes 5 and the plate holes distributed on the screen plate 14 is smaller than the total area of the liquid injection holes 611. Thereby enabling the refrigerant liquid to uniformly flow and evaporate through the gaps and along the first spiral grooves on the outer peripheral surfaces of the plurality of heat exchange tubes 5.
Furthermore, in this embodiment, in order to monitor whether the refrigerant liquid is sufficiently evaporated along the plurality of heat exchange tubes 5 in real time, it is prevented that the refrigerant is excessive due to the vertical evaporator 906, which causes uneven evaporation of the refrigerant liquid at the ends of the plurality of heat exchange tubes 5, the local temperature difference is too large, and then the low-temperature area is frozen or the heat exchange efficiency is reduced, preferably, this implementation is provided with a refrigerant level sensor 7 for detecting whether the refrigerant is sufficiently evaporated at the bottom of the refrigerant evaporation cavity 3, which is used for monitoring whether the refrigerant in the bottom of the refrigerant evaporation cavity 3 is not evaporated, the refrigerant level sensor 7 is electrically connected with an external electric control device, the external electric control device controls the refrigerant flow through the signal of the refrigerant level sensor 7, so that the refrigerant is just evaporated at the bottom of the refrigerant evaporation cavity 3.
In addition, in order to further improve the heat exchange efficiency between the liquid flowing through the heat exchange tube 5 and the refrigerant liquid, preferably, the inner wall of the heat exchange tube 5 in the embodiment is provided with a second spiral groove along the length direction for the cooling water to flow uniformly along the inner wall, and the second spiral groove may also be provided as a spiral protrusion matching with the first spiral groove according to the forming process of the heat exchange tube 5.
Further, similar to the liquid refrigerant guiding structure, the gaseous refrigerant recycling structure in this embodiment includes a second annular conduit 81 sleeved on the outer periphery of the housing, and a second U-shaped conduit 82 respectively connected to the second annular conduit 81 and the low-pressure gaseous refrigerant output pipeline; the second annular conduit 81 is uniformly distributed with a plurality of gaseous refrigerant outlets communicated with the refrigerant evaporation cavity 3, so that the recovery efficiency of the gaseous refrigerant is effectively improved, and the uniformity of refrigerant evaporation of the refrigerant evaporation cavity 3 is increased.
More specifically, the present embodiment further provides a control method, which is mainly used for the low-temperature cold water refrigeration unit, and includes the following steps:
firstly, the refrigerant flow of the downstream evaporator in the waterway series connection is preferentially controlled through a throttle valve 905, and a heat exchange pipeline in the downstream evaporator is in a uniform evaporation state, and in the state, the refrigerant flow of the downstream evaporator is kept constant; then, the refrigerant flow of the upstream evaporator in which the water paths are connected in series is adjusted through the throttle valve 905, and then the final outlet water temperature of the low-temperature cold water refrigerating unit is adjusted, so that the outlet water temperature of the low-temperature cold water refrigerating unit is constant. Therefore, the stable water outlet temperature of the unit in a certain range is ensured, and the downstream evaporator can be stably in a uniform evaporation state under a low-temperature water outlet state without freezing.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. The utility model provides a low temperature cold water refrigerating unit, its characterized in that, including the compressor, with refrigerant high pressure liquid pipeline and refrigerant low pressure gaseous state pipeline that the compressor is connected, set up in refrigerant high pressure liquid pipeline with condenser between the compressor, with a plurality of evaporimeters that refrigerant high pressure liquid pipeline connects in parallel, and set up respectively in a plurality of the choke valve of the liquid entry of refrigerant of evaporimeter, the choke valve with refrigerant high pressure liquid pipeline is connected, and is a plurality of the evaporimeter respectively with refrigerant low pressure gaseous state pipeline is connected, and is a plurality of the water route of evaporimeter is established ties mutually.
2. The low-temperature cold water refrigerating unit according to claim 1, wherein the plurality of evaporators include a vertical evaporator and a horizontal evaporator which are connected in series in a water path, the water path of the vertical evaporator is arranged at the downstream of the water path of the horizontal evaporator, and the pressure drop of the water flow of the vertical evaporator and the horizontal evaporator after being connected in series is gradually increased from the upstream to the downstream.
3. The low-temperature cold water refrigerating unit as claimed in claim 2, wherein the vertical evaporator comprises an upper water inlet and outlet, an upper water distribution chamber, a refrigerant liquid buffer chamber, a refrigerant evaporation chamber, a lower water distribution chamber, a lower water inlet and outlet, a plurality of heat exchange tubes penetrating through the refrigerant liquid buffer chamber and the refrigerant evaporation chamber, a liquid refrigerant guiding structure matched with the refrigerant liquid buffer chamber, and a gaseous refrigerant recovery structure matched with the refrigerant evaporation chamber, which are arranged from top to bottom along the length direction of the housing cavity; the two ends of the heat exchange tubes are respectively communicated with the upper water distribution cavity and the lower water distribution cavity.
4. The low-temperature cold water refrigerating unit according to claim 3, wherein an upper water diversion end and a lower water diversion end are respectively arranged at two ends of the shell, and an upper isolation plate, a screen plate and a lower isolation plate are arranged in parallel in the cavity of the shell at intervals from top to bottom; the heat exchange tubes vertically penetrate through the screen plate, and two ports of the heat exchange tubes are respectively exposed out of the upper isolation plate and the lower isolation plate; the peripheral surfaces of the heat exchange tubes are in clearance fit with the corresponding plate holes distributed on the screen plate.
5. The low-temperature cold water refrigerating unit according to claim 4, wherein the liquid refrigerant guiding structure comprises an annular refrigerant storage cavity arranged in the refrigerant liquid buffer cavity, a first annular duct sleeved on the periphery of the shell, and a first U-shaped duct communicated with the first annular duct and the refrigerant high-pressure liquid input pipeline respectively, the first annular duct is communicated with the annular refrigerant storage cavity, and a plurality of liquid injection holes communicated with the refrigerant liquid buffer cavity are uniformly distributed on the wall of the annular refrigerant storage cavity in the circumferential direction.
6. The low-temperature cold water refrigerating unit as claimed in claim 3, wherein the gaseous refrigerant recovery structure comprises a second annular conduit sleeved on the periphery of the housing, and a second U-shaped conduit respectively communicated with the second annular conduit and the refrigerant low-pressure gaseous output pipeline; and a plurality of gaseous refrigerant outlets communicated with the refrigerant evaporation cavity are uniformly distributed on the second annular guide pipe.
7. The cryogenic cold water chiller according to claim 5 wherein the total area of the plurality of liquid injection holes is less than the refrigerant liquid inlet area of the first annular duct; the total area of the gaps between the heat exchange tubes and the corresponding plate holes is smaller than that of the liquid injection holes.
8. The low-temperature cold water refrigerating unit as claimed in claim 3, wherein the outer peripheral surface of the heat exchange pipe is provided with a spiral groove along the length direction.
9. The low-temperature cold water refrigerating unit according to claim 2, further comprising a water pump connected to the water path of the horizontal evaporator, wherein a water outlet of the water pump is communicated with a water inlet of the horizontal evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023248487.5U CN214620160U (en) | 2020-12-29 | 2020-12-29 | Low-temperature cold water refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023248487.5U CN214620160U (en) | 2020-12-29 | 2020-12-29 | Low-temperature cold water refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214620160U true CN214620160U (en) | 2021-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023248487.5U Withdrawn - After Issue CN214620160U (en) | 2020-12-29 | 2020-12-29 | Low-temperature cold water refrigerating unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN214620160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594950A (en) * | 2020-12-29 | 2021-04-02 | 深圳市海吉源科技有限公司 | Low-temperature cold water refrigerating unit and control method |
-
2020
- 2020-12-29 CN CN202023248487.5U patent/CN214620160U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594950A (en) * | 2020-12-29 | 2021-04-02 | 深圳市海吉源科技有限公司 | Low-temperature cold water refrigerating unit and control method |
| CN112594950B (en) * | 2020-12-29 | 2024-02-09 | 深圳市海吉源科技有限公司 | Low-temperature cold water refrigerating unit and control method |
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