CN214250234U - Hot fluorine defrosting system of water-cooled refrigerator unit and refrigeration equipment - Google Patents
Hot fluorine defrosting system of water-cooled refrigerator unit and refrigeration equipment Download PDFInfo
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- CN214250234U CN214250234U CN202120254334.7U CN202120254334U CN214250234U CN 214250234 U CN214250234 U CN 214250234U CN 202120254334 U CN202120254334 U CN 202120254334U CN 214250234 U CN214250234 U CN 214250234U
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Abstract
The application provides a water-cooled freezer unit hot fluorine defrost system and refrigeration plant, including the cooling water module, the cooling water module includes water-cooled condenser, communicate with water-cooled condenser delivery port and be used for drawing forth the outlet conduit of cooling water, be equipped with the pressure regulating valve who is used for adjusting discharge on the outlet conduit, the last parallelly connected bypass branch road that is used for the reposition of redundant personnel to draw forth the cooling water that has of pressure regulating valve, be equipped with the control valve that is used for controlling rivers break-make on the bypass branch road, discharge through pressure regulating valve automatically regulated water-cooled condenser, parallelly connected installation control valve on pressure regulating valve, open the control valve when the hot fluorine defrosting of system and play the bypass effect, make rivers in the condenser can keep great flow, the problem that water takes place to freeze in the condenser is solved.
Description
Technical Field
The application belongs to the technical field of refrigeration equipment, and particularly relates to a hot fluorine defrosting system of a water-cooled refrigeration house unit and refrigeration equipment.
Background
The refrigeration house unit is the most important equipment in the refrigeration industry, and the mainstream cooling modes in the market at present are mainly an air-cooled condenser, a water-cooled condenser, an evaporative condenser applied to a cascade system and the like. For a refrigeration system using a water-cooled condenser, an electric heating tube is generally used for defrosting in the defrosting mode of an air cooler, the defrosting time is long, the defrosting power consumption is large, and energy is not saved; in order to solve the defect of defrosting of an electric heating tube. The ideal method is that a four-way reversing valve is installed on a refrigeration system, hot fluorine defrosting is realized by reversing of the four-way valve, after the four-way valve is reversed, a water-cooled condenser can be converted into a cold water type evaporator, frosting is more on the high-pressure side in the early stage of defrosting, the high-pressure ratio is lower, the opening of a condensation pressure regulating valve installed in a water path system is very small or in a closed state, a water path in a heat exchanger of the cold water type evaporator is obstructed, the risk that a copper pipe in the heat exchanger is broken due to icing of water in the heat exchanger exists, and further improvement is needed urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides a hot fluorine defrosting system of a water-cooled refrigerator unit.
A second object of the present application is to provide a refrigeration device.
In order to solve the technical problem, the following technical scheme is adopted in the application:
water-cooled freezer unit hot fluorine defrost system, including the cooling water module, the cooling water module include water-cooled condenser, with water-cooled condenser delivery port intercommunication is used for drawing forth the outlet conduit of cooling water, be equipped with the pressure regulating valve who is used for adjusting discharge on the outlet conduit, the last parallelly connected bypass branch road that is used for the reposition of redundant personnel to draw forth the cooling water that has of pressure regulating valve, the bypass is equipped with the control valve that is used for controlling the rivers break-make on the road.
The water-cooled refrigerator unit hot fluorine defrosting system further comprises a refrigeration module, wherein the refrigeration module is communicated with the water-cooled condenser through a four-way valve, and the four-way valve is used for reversing.
The water-cooled refrigeration house unit hot fluorine defrosting system comprises a refrigeration compressor, an oil separator, a four-way valve, an evaporator, an electronic expansion valve and a vapor-liquid heat regenerator which are sequentially connected through pipelines.
According to the water-cooled refrigerator unit hot fluorine defrosting system, the vapor-liquid heat regenerator is communicated with the water-cooled condenser through a pipeline, and the vapor-liquid heat regenerator can be used for conveying a refrigerant to the water-cooled condenser.
According to the water-cooled type cold storage machine set hot fluorine defrosting system, the water-cooled condenser is a high-efficiency tank heat exchanger or a shell and tube water-cooled condenser.
According to the water-cooled refrigerator unit hot fluorine defrosting system, the pressure regulating valve is a mechanical pressure regulating valve or an electronic pressure regulating valve.
According to the hot fluorine defrosting system of the water-cooled refrigerator unit, the control valve is a water electromagnetic valve.
According to the water-cooled type cold storage machine set hot fluorine defrosting system, the water outlet pipelines on the two sides of the pressure regulating valve are communicated with the bypass branch through the tee.
According to the water-cooled refrigerator unit hot fluorine defrosting system, the cooling water module further comprises a water inlet pipeline for introducing cooling water to the water inlet of the water-cooled condenser.
A refrigeration equipment comprises the water-cooled refrigeration house unit hot fluorine defrosting system.
Compared with the prior art, the beneficial effects of this application are as follows:
1. the application provides a water-cooled freezer unit hot fluorine defrost system, including the cooling water module, the cooling water module includes water-cooled condenser, with water-cooled condenser delivery port intercommunication and be used for drawing forth the outlet conduit of cooling water, be equipped with the pressure regulating valve who is used for adjusting discharge on the outlet conduit, the last parallelly connected bypass branch road that is used for the reposition of redundant personnel to draw forth the cooling water that has been used for on the pressure regulating valve, the bypass is equipped with the control valve that is used for controlling the rivers break-make on the branch road, discharge through pressure regulating valve automatically regulated water-cooled condenser, install the control valve on pressure regulating valve parallelly connected, open the control valve when the defrosting of system hot fluorine and play the bypass effect, make rivers in the condenser can keep great flow, the problem that water takes place to freeze in the condenser is solved.
2. The utility model provides a hot fluorine defrost system of water-cooled freezer unit still includes the refrigeration module, the refrigeration module passes through cross valve and water-cooled condenser intercommunication, realize hot fluorine defrosting through the cross valve switching-over, through parallelly connected bypass branch road on pressure regulating valve, install the control valve on the bypass branch road, open the control valve when the hot fluorine defrosting of system and play the bypass effect, make rivers in the condenser can keep great flow, when having avoided hot fluorine defrosting, the water route in the water-cooled condenser that the condensing pressure regulating valve aperture is crossed lowly or is closed and lead to is obstructed, water in the condenser freezes and breaks the risk of copper pipe in the heat exchanger.
3. The application provides a refrigeration plant, including water-cooled freezer unit hot fluorine defrost system. This application is through the unable problem in water route in the water-cooled condenser when water-cooled freezer unit hot fluorine defrost system solves the defrosting, compares with traditional electrical heating defrosting, and defrosting time shortens 75%, and energy-conservation more than 85%.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic perspective view of a hot fluorine defrosting system of a water-cooled refrigerator set according to the present application;
FIG. 2 is a schematic perspective view of another view of the water-cooled refrigerator unit hot fluorine defrosting system of the present application;
fig. 3 is a schematic diagram of the principle of the hot fluorine defrosting system of the water-cooled refrigerator unit.
Detailed Description
As shown in fig. 1-3, the hot fluorine defrosting system of the water-cooled freezer unit comprises a cooling water module, wherein the cooling water module comprises a water-cooled condenser 4 and a water outlet pipeline communicated with a water outlet of the water-cooled condenser 4 and used for leading out cooling water, a pressure regulating valve 1 used for regulating water flow is arranged on the water outlet pipeline, a bypass branch used for shunting and leading out the cooling water is connected in parallel on the pressure regulating valve 1, and a control valve 2 used for controlling the on-off of water flow is arranged on the bypass branch.
The application provides a water-cooled freezer unit hot fluorine defrost system, including the cooling water module, the cooling water module includes water-cooled condenser, with water-cooled condenser delivery port intercommunication and be used for drawing forth the outlet conduit of cooling water, be equipped with the pressure regulating valve who is used for adjusting discharge on the outlet conduit, the last parallelly connected bypass branch road that is used for the reposition of redundant personnel to draw forth the cooling water that has been used for on the pressure regulating valve, the bypass is equipped with the control valve that is used for controlling the rivers break-make on the branch road, discharge through pressure regulating valve automatically regulated water-cooled condenser, install the control valve on pressure regulating valve parallelly connected, open the control valve when the defrosting of system hot fluorine and play the bypass effect, make rivers in the condenser can keep great flow, the problem that water takes place to freeze in the condenser is solved.
The hot fluorine defrosting system of the water-cooled refrigerator unit further comprises a refrigerating module, wherein the refrigerating module is communicated with the water-cooled condenser 4 through a four-way valve 5, and the four-way valve 5 is used for reversing. The four-way valve is adopted for hot fluorine defrosting, the hot fluorine defrosting is realized by reversing the four-way valve, and after the four-way valve is reversed, the water-cooled condenser is converted into a cold water type evaporator, and because the high-pressure side frosts more and the high-pressure side is lower in the early stage of defrosting, the opening of a condensation pressure regulating valve arranged in a water channel system is small or is in a closed state, the water channel in the heat exchanger of the cold water type evaporator is not communicated, the risk that the copper pipe in the heat exchanger is crushed due to the icing of the water in the heat exchanger is solved by connecting a bypass branch in parallel with a pressure regulating valve, installing a control valve on the bypass branch, when the system is used for hot fluorine defrosting, the control valve is opened to play a bypass role, so that the water flow in the condenser can keep a larger flow, the problem that water is frozen in the condenser is solved, compared with the traditional electric heating defrosting, the defrosting time is shortened by 75%, and the energy is saved by more than 85%.
According to the hot fluorine defrosting system of the water-cooled refrigerator unit, the refrigeration module comprises a refrigeration compressor 11, an oil separator 9, a four-way valve 5, an evaporator 22, an electronic expansion valve 6 and a vapor-liquid heat regenerator 8 which are sequentially connected through pipelines. The refrigeration part mainly comprises a refrigeration compressor 11, an oil separator 9, a defrosting four-way valve 5, a water-cooled condenser 4, a condensing pressure regulating valve 1, an electronic expansion valve 6, a vapor-liquid heat regenerator 8, a two-way drying filter 18, a liquid viewing mirror 19, a filter with a net 20, a liquid outlet stop valve 21, an air return stop valve 23, a high-pressure sensor 24, a low-pressure sensor 25, a refrigeration circulating pipeline and the like.
According to the hot fluorine defrosting system of the water-cooled refrigerator unit, the vapor-liquid heat regenerator 8 is communicated with the water-cooled condenser 4 through a pipeline, and the vapor-liquid heat regenerator 8 can be used for conveying a refrigerant to the water-cooled condenser 4.
According to the water-cooled refrigerator unit hot fluorine defrosting system, the water-cooled condenser 4 is a high-efficiency tank heat exchanger or a shell-and-tube water-cooled condenser 4. The hot fluorine defrosting is realized by reversing the four-way valve, and after the four-way valve is reversed, the water-cooled condenser is converted into a cold water type evaporator.
In the above water-cooled refrigerator unit hot fluorine defrosting system, the pressure regulating valve 1 is a mechanical pressure regulating valve or an electronic pressure regulating valve. The water path of the unit is provided with a condensing pressure regulating valve for regulating water flow in the condenser (solving the problem of low high pressure under the condition of low water temperature), and the water flow of the water-cooled condenser is automatically regulated by the pressure regulating valve, so that the problem of low high pressure of the refrigerating system when the water inlet temperature is low is solved.
According to the hot fluorine defrosting system of the water-cooled refrigerator unit, the control valve 2 is a water electromagnetic valve. Through parallelly connected installation control valve on pressure regulating valve, the mode of opening control valve when the hot fluorine defrosting of system, the water route in the water-cooled condensation that has avoided cross valve hot fluorine defrosting time pressure regulating valve aperture to hang down and lead to is obstructed, and there is the risk of freezing and breaking the interior copper pipe of heat exchanger in the water in the condenser, and this water solenoid valve is opened at defrosting in-process, plays the effect of bypass, solves the problem that the water route in the heat exchanger is obstructed during the defrosting.
According to the water-cooled type cold storage machine set hot fluorine defrosting system, the water outlet pipelines on two sides of the pressure regulating valve 1 are communicated with the bypass branch through the tee joint 3.
According to the water-cooled refrigerator unit hot fluorine defrosting system, the cooling water module further comprises a water inlet pipeline for introducing cooling water to the water inlet of the water-cooled condenser 4.
The refrigerating equipment comprises the water-cooled refrigerator unit hot fluorine defrosting system. The problem that the water route in the heat exchanger is obstructed when this application solves the defrosting through water-cooled freezer unit hot fluorine defrost system compares with traditional electrical heating defrosting, and the defrosting time shortens 75%, and energy-conserving more than 85%.
When the water-cooled refrigerator unit hot fluorine defrosting system defrosts, the working process of the cooling water system is as follows: normal temperature water from a cooling tower or other cooling equipment flows into the water-cooled condenser 4 from a water inlet of a water inlet pipeline, the normal temperature water is cooled by a low-temperature and low-pressure refrigerant in the condenser to be changed into low temperature water, and the low temperature water flows out of a water outlet of the water-cooled condenser to reach the position of the tee joint 3; at the moment, the low-temperature water is divided into two paths, one path passes through the pressure regulating valve 1, but the opening degree of the pressure regulating valve 1 is smaller or even in a closed state due to the fact that the high pressure in the refrigerant system is lower, the path of water cannot flow, the other path of water flows to a water outlet of the water outlet pipeline through the bypass branch and the control valve 2 (the valve is in an open state only during defrosting), and then flows into a cooling tower or other cooling equipment through the pipeline to exchange heat, so that the water temperature is changed from a low-temperature state to a normal-temperature state, and the circulation of the water system is completed. In the process, due to the bypass effect of the control valve 2, the water flow in the condenser can keep a larger flow, and the problem that water freezes in the condenser is solved.
When the water-cooled refrigerator unit hot fluorine defrosting system defrosts, the working process of the refrigerant system is as follows: the low-temperature low-pressure refrigerant gas is compressed by a compressor 11 and then becomes high-temperature high-pressure gas, the gas flows through an oil separator 9 for oil-gas separation and then flows to a four-way valve 5, the gas flows to a stop valve 23 by the four-way valve 5 to perform heat exchange with an air cooler (namely an evaporator 22) in a refrigeration house to achieve the purpose of defrosting, the refrigerant after defrosting in the air cooler becomes normal-temperature high-pressure liquid, the liquid flows to an electronic expansion valve 6 after flowing through the stop valve 21, the refrigerant after throttling and pressure reduction by the electronic expansion valve becomes low-temperature low-pressure liquid, the liquid flows through a liquid storage bottle part of a vapor-liquid heat regenerator 8, redundant refrigerant in the system is stored in the liquid storage bottle, the refrigerant required by system circulation flows out of the liquid storage bottle and flows into a water-cooled condenser for heat exchange, the refrigerant becomes low-temperature low-pressure gas by a water, after the refrigerant is subjected to gas-liquid separation by the gas-liquid separator, the gas returns to the compressor 11, and the circulation of the refrigerant system is completed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The hot fluorine defrost system of water-cooled freezer unit, its characterized in that, including the cooling water module, the cooling water module include water-cooled condenser (4), with water-cooled condenser (4) delivery port intercommunication is used for drawing forth the outlet conduit of cooling water, be equipped with pressure regulating valve (1) that are used for adjusting discharge on the outlet conduit, the parallel connection has the bypass branch road that is used for the reposition of redundant personnel to draw forth the cooling water on pressure regulating valve (1), be equipped with control valve (2) that are used for controlling rivers break-make on the bypass branch road.
2. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: the refrigeration system is characterized by further comprising a refrigeration module which is communicated with the water-cooled condenser (4) through a four-way valve (5), wherein the four-way valve (5) is used for reversing.
3. The water-cooled freezer unit hot fluorine defrost system of claim 2, characterized in that: the refrigeration module comprises a refrigeration compressor (11), an oil separator (9), a four-way valve (5), an evaporator (22), an electronic expansion valve (6) and a vapor-liquid heat regenerator (8) which are sequentially connected through pipelines.
4. The water-cooled freezer unit hot fluorine defrost system of claim 3, characterized in that: the vapor-liquid heat regenerator (8) is communicated with the water-cooled condenser (4) through a pipeline, and the vapor-liquid heat regenerator (8) can be used for conveying a refrigerant to the water-cooled condenser (4).
5. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: the water-cooled condenser (4) is a high-efficiency tank heat exchanger or a shell-and-tube water-cooled condenser (4).
6. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: the pressure regulating valve (1) is a mechanical pressure regulating valve or an electronic pressure regulating valve.
7. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: the control valve (2) is an electromagnetic valve for water.
8. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: and water outlet pipelines on two sides of the pressure regulating valve (1) are communicated with the bypass branch through a tee joint (3).
9. The water-cooled freezer unit hot fluorine defrost system of claim 1, characterized in that: the cooling water module further comprises a water inlet pipeline for introducing cooling water to a water inlet of the water-cooled condenser (4).
10. A refrigeration apparatus, characterized by: the water-cooled refrigerator unit hot fluorine defrosting system comprises the water-cooled refrigerator unit hot fluorine defrosting system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254334.7U CN214250234U (en) | 2021-01-28 | 2021-01-28 | Hot fluorine defrosting system of water-cooled refrigerator unit and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254334.7U CN214250234U (en) | 2021-01-28 | 2021-01-28 | Hot fluorine defrosting system of water-cooled refrigerator unit and refrigeration equipment |
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| Publication Number | Publication Date |
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| CN214250234U true CN214250234U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120254334.7U Active CN214250234U (en) | 2021-01-28 | 2021-01-28 | Hot fluorine defrosting system of water-cooled refrigerator unit and refrigeration equipment |
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| CN (1) | CN214250234U (en) |
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- 2021-01-28 CN CN202120254334.7U patent/CN214250234U/en active Active
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