Refrigerant cooling device

Abstract

The utility model discloses a refrigerant cooling device, which relates to the field of low-temperature refrigeration and comprises at least two refrigerant grooves, at least one of the refrigerant grooves is connected with a refrigerating unit through a refrigerant outer circulation pipeline, a balance pipe and an inner circulation pipe are connected between the refrigerant grooves, and a refrigerant variable frequency pump is additionally arranged on the inner circulation pipe. The refrigerant grooves are communicated together through the balance pipe and the inner circulation pipe, so that refrigerants are communicated with one another, the temperatures of the refrigerants in the refrigerant grooves are similar or the same, a single refrigerating unit can achieve cooling of a plurality of refrigerant grooves, one refrigerating unit is omitted, the use cost of equipment is reduced, and the refrigerating efficiency is improved. The working efficiency of the refrigerating unit under low load is improved, the operation time of the refrigerating unit is shortened, the service life of equipment can be prolonged, energy consumption and waste can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature refrigeration, in particular to a refrigerant cooling device. Background Art

[0002] Human plasma is a high-quality raw material for the production of blood preparation biological products. After the plasma is separated from the human body, it is required to be quickly frozen to below -30°C for storage. The effect and time of quick freezing directly affect the effect and economy of blood preparation products. Generally, the plasma is required to be quickly frozen to the specified temperature within 1 hour. Refrigerant is supplied in the blood preparation workshop. The refrigerant is transported to the freezer as a freezing medium to quickly freeze the plasma through heat exchange. The temperature of the refrigerant will rise after the heat exchange, and the refrigerant needs to be cooled. Patent application number 202310067082.0 discloses a low-temperature refrigeration process system for avoiding frequent start and stop of the evaporator of a refrigeration unit, including a refrigeration unit and a refrigerant tank, the refrigeration unit including an evaporator, the refrigerant tank including a hot side and a cold side, the hot side and the cold side are separated by a partition and connected at the top, the refrigerant inlet of the evaporator is connected to the hot side, the refrigerant outlet of the evaporator is connected to the cold side, the cold side is connected to a refrigerant liquid supply pipeline, the hot side is connected to a refrigerant liquid return pipeline, an internal circulation pump is provided on the pipeline connecting the refrigeration unit to the hot side, and an external circulation pump is provided on the refrigerant liquid supply pipeline. In this system, the cold side of the refrigerant tank is used as a storage device for the refrigerant after refrigeration, and the hot side of the refrigerant tank is used as a storage device for the refrigerant after heat exchange. The refrigerant is supplied to the industrial equipment by the cold side of the refrigerant tank, and the refrigerant returns to the hot side of the refrigerant tank after heat exchange and refrigeration of the process equipment, rather than directly exchanging heat with the process equipment after coming out of the refrigeration unit, and then directly returning to the refrigeration unit after heat exchange, so that the evaporator will not be shut down due to the small temperature difference between the inlet and outlet of the evaporator; when it is necessary to supply refrigerant to multiple blood preparation workshops, and a single refrigerant tank cannot reach the refrigerant oxygen supply, multiple refrigerant tanks need to be equipped, and each refrigerant tank corresponds to a refrigeration unit. The refrigeration unit cools down the refrigerant in the refrigerant tanks connected to each other, which increases energy consumption and causes energy waste. The efficiency of the refrigeration unit is low when working at low load, which increases production costs. Therefore, the utility model discloses a refrigerant cooling device to solve the above problems. Utility Model Content

[0003] Based on this, it is necessary to provide a refrigerant cooling device to address the above-mentioned technical problems. The refrigerant tanks are connected together through a balancing pipe and an internal circulation pipe, so that the refrigerants can flow together, and the refrigerant temperatures in the refrigerant tanks are similar or the same. A single refrigeration unit can achieve the cooling of multiple refrigerant tanks, reducing the use of one refrigeration unit, reducing the cost of equipment use, improving the working efficiency of the refrigeration unit at low load, reducing the operating time of the refrigeration unit, and increasing the service life of the equipment. It can reduce energy waste and reduce production costs.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A refrigerant cooling device comprises at least two refrigerant tanks, at least one of which is connected to a refrigeration unit via a refrigerant external circulation pipeline, a balancing pipe and an internal circulation pipe are connected between the refrigerant tanks, and a refrigerant variable frequency pump is installed on the internal circulation pipe.

[0006] As a preferred implementation of the refrigerant cooling device provided by the utility model, two refrigerant tanks are provided, and both of the two refrigerant tanks are connected to a refrigeration unit.

[0007] As a preferred implementation of the refrigerant cooling device provided by the utility model, the two ends of the balance pipe are respectively connected to the bottom end and the top end of the two refrigerant tanks.

[0008] As a preferred embodiment of the refrigerant cooling device provided by the utility model, the two refrigerant tanks are arranged in the same plane and at different heights, one end of the balance pipe is connected to the bottom of the higher refrigerant tank, and the other end of the balance pipe is connected to the top of the lower refrigerant tank.

[0009] As a preferred embodiment of the refrigerant cooling device provided by the utility model, the refrigerant frequency conversion pump is installed at the bottom of a low refrigerant tank, the refrigerant frequency conversion pump is connected to one end of an inner circulation pipe, and the other end of the inner circulation pipe is connected to a high refrigerant tank.

[0010] As a preferred embodiment of the refrigerant cooling device provided by the utility model, the refrigerant tank includes a cold tank and a hot tank, a partition is provided between the cold tank and the hot tank, and the upper parts of the cold tank and the hot tank are connected.

[0011] As a preferred embodiment of the refrigerant cooling device provided by the utility model, the refrigeration unit includes a cooling tower, a circulating pump, a cooling water pump and a cooling fan. A spiral cooling pipeline is arranged in the cooling tower, and the two ends of the cooling pipeline are respectively connected to the hot tank and the cold tank of the refrigerant tank. The circulating pump is arranged at one end of the cooling pipeline close to the hot tank. The cooling water pump is used to input cooling water into the cooling tower, and the cooling fan is used to discharge the hot air and water vapor in the cooling tower.

[0012] As a preferred implementation of the refrigerant cooling device provided by the utility model, both ends of the balance pipe are respectively connected to the cold tanks of the two refrigerant tanks.

[0013] As a preferred embodiment of the refrigerant cooling device provided by the utility model, both ends of the inner circulation pipe are respectively connected to the hot tanks of the two refrigerant tanks.

[0014] As a preferred implementation of the refrigerant cooling device provided by the utility model, a solenoid valve is installed on the balance pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The refrigerant cooling device provided by the utility model connects the refrigerant tanks together through a balance pipe and an internal circulation pipe, allowing the refrigerant to communicate with each other, so that the refrigerant temperature in the refrigerant tanks is similar or the same, and a single refrigeration unit can achieve the cooling of multiple refrigerant tanks, thereby reducing the use of one refrigeration unit, reducing the cost of equipment use, improving the work efficiency of the refrigeration unit at low load, reducing the operating time of the refrigeration unit, and prolonging the service life of the equipment, which can reduce energy waste and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the principle of the refrigerant cooling device provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the refrigerant cooling device provided by the utility model;

[0020] Figure 3 The utility model provides a schematic diagram of the structure of a refrigeration unit of the refrigerant cooling device.

[0021] The markings in the figure are as follows:

[0022] 1. Refrigerant tank; 101. Cold tank; 102. Hot tank; 103. Partition; 2. First refrigerant tank; 3. Second refrigerant tank; 4. Refrigerant external circulation pipeline; 5. Refrigeration unit; 6. Balance pipe; 7. Solenoid valve; 8. Refrigerant frequency conversion pump; 9. Internal circulation pipe; 10. Cooling tower; 11. Circulation pump; 12. Cooling water pump; 13. Cooling fan; 14. Cooling pipeline; 15. Spraying system. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] As described in the background technology, when refrigerant needs to be supplied to multiple blood preparation workshops and a single refrigerant tank cannot meet the refrigerant oxygen supply, multiple refrigerant tanks are required, and each refrigerant tank corresponds to a refrigeration unit. The refrigeration units cool down the refrigerant in the refrigerant tanks connected to them, which increases energy consumption and causes energy waste. The refrigeration units are inefficient when working at low loads, which increases production costs.

[0025] In order to solve this technical problem, the utility model provides a refrigerant cooling device, which is applied to the field of low-temperature refrigeration.

[0026] Specifically, please refer to Figure 1-2 The refrigerant cooling device specifically includes at least two refrigerant tanks 1, at least one of which is connected to a refrigeration unit 5 via a refrigerant external circulation pipeline 4, a balance pipe 6 and an internal circulation pipe 9 are connected between the refrigerant tanks 1, and a refrigerant variable frequency pump 8 is installed on the internal circulation pipe 9.

[0027] The refrigerant cooling device provided by the utility model connects the refrigerant tanks 1 together through the balance pipe 6 and the internal circulation pipe 9, so that the refrigerant can flow, and the refrigerant temperature in the refrigerant tank 1 is similar or the same. A single refrigeration unit 5 can achieve the cooling of multiple refrigerant tanks 1, reducing the use of one refrigeration unit 5, reducing the cost of equipment use, improving the work efficiency of the refrigeration unit 5 at low load, reducing the operating time of the refrigeration unit 5, and can increase the service life of the equipment, can reduce energy waste, and reduce production costs.

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] Please refer to Figure 1-2 , provides a refrigerant cooling device, which includes two refrigerant tanks 1, namely a first refrigerant tank 2 and a second refrigerant tank 3. The first refrigerant tank 2 has a storage capacity of 35 tons and a height of 3.5 meters. The first refrigerant tank 2 supplies refrigerant to a two-story blood preparation workshop. The second refrigerant tank 3 has a storage capacity of 30 tons and a height of 2.5 meters. The second refrigerant tank 3 supplies refrigerant to a single-story blood preparation workshop. Both refrigerant tanks 1 are connected to a refrigeration unit 5 through a refrigerant external circulation pipeline 4. A balance pipe 6 is connected between the first refrigerant tank 2 and the second refrigerant tank 3. The balance pipe 6 adopts a DM150 pipe. One end of the balance pipe 6 is connected to the bottom of the first refrigerant tank 2, and the balance pipe 6 is a DM150 pipe. The other end of the balancing pipe 6 is connected to the top of the second refrigerant tank 3. The first refrigerant tank 2 and the second refrigerant tank 3 are located on the same plane. After the balancing pipe 6 connects the two refrigerant tanks 1, the refrigerant in the first refrigerant tank 2 will flow into the second refrigerant tank 3. In order to control the amount of refrigerant in the two refrigerant tanks 1, a solenoid valve 7 is installed on the balancing pipe 6. A 4KW refrigerant frequency conversion pump 8 is installed at the bottom of the second refrigerant tank 3. The refrigerant frequency conversion pump 8 is connected to the internal circulation pipe 9. The internal circulation pipe 9 is connected to the first refrigerant tank 2. The internal circulation pipe 9 adopts a DN100 pipe to achieve the mixing of the refrigerants in the two refrigerant tanks 1 and realize the effect of internal circulation of the refrigerant.

[0032] When cooling the refrigerant in the two refrigerant tanks 1, when the temperature difference is small, only the refrigeration unit 5 connected to the first refrigerant tank 2 can be turned on, and the refrigerant in the first refrigerant tank 2 can be cooled by the refrigeration unit 5, and then the refrigerant in the two refrigerant tanks 1 is circulated through the balance pipe 6 and the internal circulation pipe 9, so as to achieve the effect of cooling the refrigerant in the two refrigerant tanks 1, so that the temperatures of the refrigerants in the two refrigerant tanks 1 are similar, thereby reducing the use of one refrigeration unit 5 and reducing energy consumption. When cooling with a large temperature difference is required, the two refrigeration units 5 can be turned on at the same time, so as to achieve the purpose of rapid cooling.

[0033] The refrigerant cooling device provided in Example 1 is further optimized. Specifically, Figure 2 As shown, the refrigerant tank 1 includes a cold tank 101 and a hot tank 102, a partition 103 is arranged between the cold tank 101 and the hot tank 102, and the upper parts of the cold tank 101 and the hot tank 102 are communicated with each other, the two ends of the balance pipe 6 are respectively communicated with the cold tanks 101 of the two refrigerant tanks 1, and the two ends of the inner circulation pipe 9 are respectively communicated with the hot tanks 102 of the two refrigerant tanks 1. After such a connection, the temperature of the refrigerant in the cold tanks 101 of the two refrigerant tanks 1 is consistent, thereby ensuring that the cooling effect is consistent after the refrigerant is transported out, the inner circulation pipe 9 connects the hot tanks 102 of the two refrigerant tanks 1, and the refrigerant frequency conversion pump 8 is used to transport the refrigerant in the hot tanks 102 of the two refrigerant tanks 1 to one place, so that a single refrigerant tank 1 is connected to a refrigeration unit 5 to complete the cooling of the refrigerant in the two refrigerant tanks 1, and the cold tanks 101 of the two refrigerant tanks 1 are connected to the external transmission pipe for outputting the refrigerant medium.

[0034] The refrigerant cooling device provided in Example 2 is further optimized. Specifically, Figure 3 As shown, the refrigeration unit 5 includes a cooling tower 10, a circulating pump 11, a cooling water pump 12 and a cooling fan 13. A spiral cooling pipeline 14 is arranged in the cooling tower 10. The two ends of the cooling pipeline 14 are respectively connected to the hot tank 102 and the cold tank 101 of the refrigerant tank 1. The circulating pump 11 is arranged at one end of the cooling pipeline 14 close to the hot tank 102. The cooling water pump 12 is used to input cooling water into the cooling tower 10. The cooling fan 13 is used to discharge the hot air and water vapor in the cooling tower 10. The refrigerant in the refrigerant tank 1 flows into the cooling pipeline 14. The cooling water pump 12 inputs the cooling water into the cooling tower 10. The spraying system 15 in the cooling tower 10 sprays the cooling water onto the surface of the cooling pipeline 14. The cooling water exchanges heat with the refrigerant in the cooling pipeline 14, thereby cooling the refrigerant. At the same time, the cooling fan 13 discharges the hot air and water vapor in the cooling tower 10 out of the cooling tower 10, and cools the interior of the cooling tower 10. The cooling fan 13 can be set to multiple.

[0035] The working principle of the refrigerant cooling device provided by the utility model is as follows: the refrigerant tanks 1 are connected together through the balance pipe 6 and the internal circulation pipe 9, so that the refrigerants can flow, and the refrigerant temperatures in the refrigerant tanks 1 are similar or the same. A single refrigeration unit 5 can achieve the cooling of multiple refrigerant tanks 1, thereby reducing the use of one refrigeration unit 5, reducing the cost of equipment use, improving the work efficiency of the refrigeration unit 5 at low load, reducing the operating time of the refrigeration unit 5, and prolonging the service life of the equipment, which can reduce energy waste and reduce production costs.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A refrigerant cooling device, characterized in that: It comprises at least two refrigerant tanks, at least one of which is connected to a refrigeration unit via a refrigerant external circulation pipeline, a balancing pipe and an internal circulation pipe are connected between the refrigerant tanks, and a refrigerant variable frequency pump is installed on the internal circulation pipe.

2. A refrigerant cooling device according to claim 1, characterized in that: The number of the refrigerant tanks is two, and both of the refrigerant tanks are connected to a refrigeration unit.

3. A refrigerant cooling device according to claim 2, characterized in that: The two ends of the balance pipe are respectively connected to the bottom end and the top end of the two refrigerant tanks.

4. A refrigerant cooling device according to claim 3, characterized in that: The two refrigerant tanks are arranged in the same plane and at different heights, one end of the balance pipe is connected to the bottom of the higher refrigerant tank, and the other end of the balance pipe is connected to the top of the lower refrigerant tank.

5. A refrigerant cooling device according to claim 4, characterized in that: The refrigerant frequency conversion pump is installed at the bottom of a low refrigerant tank, the refrigerant frequency conversion pump is connected to one end of an inner circulation pipe, and the other end of the inner circulation pipe is connected to a high refrigerant tank.

6. A refrigerant cooling device according to claim 1, characterized in that: The refrigerant tank includes a cold tank and a hot tank, a partition is arranged between the cold tank and the hot tank, and the upper parts of the cold tank and the hot tank are communicated.

7. A refrigerant cooling device according to claim 6, characterized in that: The refrigeration unit includes a cooling tower, a circulating pump, a cooling water pump and a cooling fan. A spiral cooling pipeline is arranged in the cooling tower. The two ends of the cooling pipeline are respectively connected to the hot tank and the cold tank of the refrigerant tank. The circulating pump is arranged at one end of the cooling pipeline close to the hot tank. The cooling water pump is used to input cooling water into the cooling tower. The cooling fan is used to discharge the hot air and water vapor in the cooling tower.

8. The refrigerant cooling device according to claim 6, characterized in that: Both ends of the balance pipe are respectively connected to the cold tanks of the two refrigerant tanks.

9. The refrigerant cooling device according to claim 6, characterized in that: Both ends of the inner circulation pipe are respectively connected to the hot tanks of the two refrigerant tanks.

10. The refrigerant cooling device according to claim 1, characterized in that: A solenoid valve is installed on the balance pipe.

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