Cold supply system

Abstract

The utility model relates to a cold supply system. The cold supply system comprises a cold supply assembly using Freon as a cooling medium, a compressor unit connected with the cold supply assembly and used for compressing the Freon, and a heat exchanger connected with the compressor unit. The heat exchanger is further connected with the cold supply assembly, and Freon is adopted as a heat exchange medium. The heat exchanger is directly connected with the cold supply assembly, Freon in an original cold supply assembly is directly used as a heat exchange medium, lubricating oil in the compressor unit is subjected to heat exchange and cooling, the heat exchange medium of the heat exchanger is changed with low cost, and the situation that blockage is likely to happen when circulating water is used as the heat exchange medium for heat exchange is avoided; the cleaning and overhauling work of the heat exchanger is reduced, the working stability and the working effect of the heat exchanger are improved, then the oil temperature of lubricating oil can be better controlled, normal work of a compressor unit is guaranteed, and the heat exchange effect of a cooling system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, and more specifically, to a refrigeration system. Background Art

[0002] In chemical production, refrigeration compressor units use Freon as a heat exchange medium for cooling. Freon absorbs heat and then vaporizes. It needs to be compressed and then cooled before it can provide cooling again. The existing technology generally uses a refrigeration compressor unit to compress Freon. The refrigeration compressor unit is a mechanical equipment that uses a compressor to change the pressure change of the refrigerant gas to achieve low-temperature refrigeration. During the compression process of the refrigeration compressor unit, the lubricating oil of the compressor needs to be cooled through a shell-and-tube heat exchanger. The heat exchange medium of the shell-and-tube heat exchanger generally uses factory circulating water. The heat exchange effect of circulating water is affected by environmental factors and water quality. Calcium and magnesium ions in the water will form scale to block the tubes, which will reduce the heat exchange effect of the circulating water, resulting in insufficient cooling of the lubricating oil temperature and unstable compressor oil temperature control, which affects the compression effect of the compressor on Freon, and ultimately affects the cooling and heat exchange effect of Freon, affecting production. In addition, during the compression of Freon by the compressor, part of the engine oil will dissolve in the liquid Freon and be carried away. After the Freon absorbs heat and vaporizes, the dissolved engine oil will precipitate and adhere to the heat exchange equipment, causing the heat exchange equipment to become dirty and reducing the heat exchange effect of the Freon. Utility Model Content

[0003] In order to overcome the defect in the prior art that the shell and tube heat exchanger using circulating water for heat exchange is prone to blockage of the tubes, resulting in poor heat exchange effect, the utility model provides a cooling system, which uses Freon as the heat exchange medium of the shell and tube heat exchanger to avoid blockage of the tubes of the shell and tube heat exchange tubes and ensure the heat exchange effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a refrigeration system, comprising: a refrigeration component using Freon as a cooling medium, a compressor unit connected to the refrigeration component and used to compress the Freon, and a heat exchanger connected to the compressor unit; the heat exchanger is also connected to the refrigeration component and uses Freon as a heat exchange medium.

[0005] The cooling system also provides cooling for a variety of other equipment. Specifically, the cooling components transport Freon to other equipment. After absorbing heat, Freon vaporizes and returns to the compressor unit. The compressor unit compresses the vaporized Freon and then cools the compressed Freon. After cooling, the Freon liquefies and is then transported to other equipment for cooling. When the compressor unit compresses Freon, lubricating oil is required, and the lubricating oil needs to be controlled at a low oil temperature to ensure the compression effect of the compressor unit. The heat exchanger is connected to the compressor unit. The lubricating oil of the compressor unit flows into the heat exchanger for heat exchange and cooling, and then returns to the compressor unit to participate in the compression work. The heat exchanger is also connected to the cooling component. The liquid Freon in the cooling component flows into the heat exchanger to cool the lubricating oil, thereby reducing the oil temperature of the lubricating oil, ensuring the compression effect, and thus ensuring the cooling effect of the cooling system on various equipment. The heat exchange medium of the heat exchanger is changed from circulating water to Freon to avoid scale inside the heat exchanger, thereby ensuring the heat exchange effect of the heat exchanger; compared with water, Freon has a lower working temperature and better heat exchange effect; the heat exchanger directly uses Freon in the cooling component as the heat exchange medium, without the need to purchase additional Freon raw materials and its supporting facilities or equipment, eliminating the use of circulating water, and Freon can be recycled to achieve better heat exchange effect at a lower cost. The heat exchanger can choose a shell and tube heat exchanger or a shell and tube heat exchanger, etc. The lubricating oil and Freon enter different channels in the heat exchanger that are isolated from each other. All components are connected and connected through pipes.

[0006] Preferably, the cooling assembly includes a cooling device connected to both the compressor unit and the heat exchanger, and the cooling device is used to cool the Freon.

[0007] The Freon compressed by the compressor unit enters the cooling device for cooling and liquefaction. The Freon used by the heat exchanger also enters the cooling device for cooling and liquefaction. The compressor unit and the heat exchanger share a cooling device, which further saves costs. It should be noted that the Freon in the refrigeration component is cooled by other equipment and becomes a low-temperature and low-pressure gas. The specific working principle can refer to the working principle of refrigerators or air conditioners. After the Freon is cooled, it needs to be compressed and heated before cooling. The Freon in the heat exchanger absorbs heat and directly becomes a relatively high-temperature and high-pressure gas, so it does not need to be further compressed and can be directly cooled.

[0008] Preferably, the refrigeration component also includes a first liquid storage tank connected to the cooling device and a condenser connected to the first liquid storage tank; the condenser is also connected to the compressor unit, the compressor unit is used to compress the Freon after passing through the condenser, and the first liquid storage tank is also connected to the heat exchanger.

[0009] The first liquid storage tank is used to store Freon to ensure a continuous supply of Freon. The condenser provides cooling for other equipment. After passing through the condenser, the Freon becomes low-temperature and low-pressure Freon, and then returns to the compressor unit to be compressed. The first liquid storage tank is also connected to the heat exchanger. The first liquid storage tank provides Freon for the condenser and the heat exchanger at the same time.

[0010] Preferably, the cooling component also includes a second liquid storage tank connected to the first liquid storage tank at one end, the second liquid storage tank is located between the first liquid storage tank and the condenser, the other end of the second liquid storage tank is connected to the condenser, and the first liquid storage tank is a siphon tank and is set at a height higher than the heat exchanger and the second liquid storage tank.

[0011] The first liquid storage tank is a siphon tank, which uses the height difference to provide Freon to the heat exchanger and condenser. After the Freon flows from the first liquid storage tank to the second liquid storage tank, it flows to the condenser. The second liquid storage tank can further ensure the supply of Freon to the condenser. The pressure difference between the second liquid storage tank and the condenser realizes the transportation of Freon.

[0012] Preferably, the cooling device comprises an active heat sink having one end connected to both the compressor unit and the heat exchanger, and the other end of the active heat sink is connected to the first liquid storage tank.

[0013] In the cooling device, after the Freon flows through the active heat sink, the heat is dissipated to the outside through the active heat sink, and then the temperature is reduced, and then the temperature is reduced and then returned to the first liquid storage tank. The active heat sink can be a tubular evaporator, a tubular radiator, or a finned tube.

[0014] Preferably, the cooling device also includes a circulating water pool, a water pipe connected to the circulating water pool, and a pump body installed on the water pipe. The end of the water pipe is arranged toward the active heat sink and is used for spray cooling. The active heat sink is located above the circulating water pool.

[0015] The pump body draws up water from the circulating water pool and sprays the water onto the active heat sink through the water pipe to further cool the active heat sink and Freon. The active heat sink is located above the circulating water pool. The sprayed water returns to the circulating water pool. At the same time, the circulating water pool is also connected to a water inlet pipe to ensure the water level of the circulating water pool.

[0016] Preferably, the cooling device also includes a fan for dissipating heat for the active heat sink.

[0017] The fan blows air toward the active heat sink to further cool the active heat sink and Freon.

[0018] Preferably, a spray head is installed at the end of the water pipe to ensure the spraying effect.

[0019] Preferably, the heat exchanger is a shell and tube heat exchanger.

[0020] Preferably, it further comprises an oil separator connected to the second liquid storage tank, wherein the oil separator is located between the second liquid storage tank and the condenser.

[0021] After Freon is compressed by the compressor unit, some engine oil will be dissolved in it. After the condenser, the vaporized engine oil will precipitate and adhere to the condenser, which will reduce the working effect of the condenser. An oil separator is set between the condenser and the second liquid storage tank to separate the engine oil dissolved in the liquid Freon to prevent the engine oil from adhering to the condenser.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The heat exchanger is directly connected to the cooling component, and the Freon in the original cooling component is directly used as the heat exchange medium to exchange heat and cool the lubricating oil in the compressor unit. The heat exchange medium of the heat exchanger is changed at a lower cost, and the blockage caused by using circulating water as the heat exchange medium is avoided. The cleaning and maintenance work of the heat exchanger is reduced, and the working stability and working effect of the heat exchanger are improved, so that the oil temperature of the lubricating oil can be better controlled, the normal operation of the compressor unit and the heat exchange effect of the cooling system can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of Embodiment 1 and Embodiment 2 of a cooling system of the utility model;

[0025] Figure 2 It is a schematic diagram of an implementation structure of a third embodiment of a cooling system of the utility model;

[0026] Figure 3 It is a schematic diagram of another implementation structure of the third embodiment of a cooling system of the utility model.

[0027] In the figure: 1. Refrigeration component; 2. Compressor unit; 3. Heat exchanger; 4. Cooling device; 401. Active heat sink; 402. Circulating water pool; 403. Water pipe; 404. Pump body; 405. Fan; 406. Sprinkler head; 5. First liquid storage tank; 6. Condenser; 7. Second liquid storage tank; 8. Oil separator. DETAILED DESCRIPTION

[0028] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0031] Example 1

[0032] like Figure 1 As shown, a cooling system includes: a cooling component 1 using Freon as a cooling medium, a compressor unit 2 connected to the cooling component 1 and used to compress the Freon, and a heat exchanger 3 connected to the compressor unit 2; the heat exchanger 3 is also connected to the cooling component 1 and uses Freon as a heat exchange medium. The heat exchanger 3 is a shell-and-tube heat exchanger 3.

[0033] The cooling system provides cooling for a variety of other equipment at the same time. Specifically, the cooling component 1 transports Freon to various other equipment. After absorbing heat, the Freon vaporizes and returns to the compressor unit 2. The compressor unit 2 compresses the vaporized Freon and then cools the compressed Freon. After cooling, the Freon liquefies and is then transported to various other equipment for cooling. When the compressor unit 2 compresses the Freon, lubricating oil is required, and the lubricating oil needs to be controlled at a low oil temperature to ensure the compression effect of the compressor unit 2. The heat exchanger 3 is connected to the compressor unit 2. The lubricating oil of the compressor unit 2 flows into the heat exchanger 3 for heat exchange and cooling, and then returns to the compressor unit 2 to participate in the compression work. The heat exchanger 3 is also connected to the cooling component 1. The liquid Freon in the cooling component 1 flows into the heat exchanger 3 to cool the lubricating oil, thereby reducing the oil temperature of the lubricating oil, ensuring the compression effect, and then ensuring the cooling effect of the cooling system on various equipment. The heat exchange medium of the heat exchanger 3 is changed from circulating water to Freon, so as to avoid the scale inside the heat exchanger 3 and ensure the heat exchange effect of the heat exchanger 3; compared with water, Freon has a lower working temperature and better heat exchange effect; the heat exchanger 3 directly uses the Freon in the cooling component 1 as the heat exchange medium, and there is no need to purchase Freon raw materials and its supporting facilities or equipment, which saves the use of circulating water. At the same time, Freon can be recycled to achieve better heat exchange effect at a lower cost. The heat exchanger 3 can use a shell and tube heat exchanger 3 or a shell and tube heat exchanger 3, etc., and the lubricating oil and Freon enter different channels in the heat exchanger 3 that are isolated from each other. In this embodiment, the heat exchanger 3 is a shell and tube heat exchanger 3. All components are connected and connected through pipes.

[0034] The beneficial effects of this embodiment are as follows: the heat exchanger 3 is directly connected to the cooling component 1, and the Freon in the original cooling component 1 is directly used as the heat exchange medium to perform heat exchange and cooling for the lubricating oil in the compressor unit 2, thereby changing the heat exchange medium of the heat exchanger 3 at a relatively low cost, avoiding the situation in which heat exchange using circulating water as the heat exchange medium is prone to blockage, reducing the cleaning and maintenance work of the heat exchanger 3, improving the working stability and working effect of the heat exchanger 3, and thus being able to better control the oil temperature of the lubricating oil, thereby ensuring the normal operation of the compressor unit 2, and ensuring the heat exchange effect of the cooling system.

[0035] Example 2

[0036] like Figure 1 As shown, based on Example 1, the difference from Example 1 is that:

[0037] The cooling assembly 1 includes a cooling device 4 connected to both the compressor unit 2 and the heat exchanger 3, a first liquid storage tank 5 connected to the cooling device 4, and a condenser 6 connected to the first liquid storage tank 5. The cooling device 4 is used to cool the Freon. The condenser 6 is also connected to the compressor unit 2. The compressor unit 2 is used to compress the Freon after passing through the condenser 6. The first liquid storage tank 5 is also connected to the heat exchanger 3. Further, the cooling assembly 1 also includes a second liquid storage tank 7 connected to the first liquid storage tank 5 at one end. The second liquid storage tank 7 is located between the first liquid storage tank 5 and the condenser 6. The other end of the second liquid storage tank 7 is connected to the condenser 6. The first liquid storage tank 5 is a siphon tank and is set at a higher height than the heat exchanger 3 and the second liquid storage tank 7.

[0038] The Freon compressed by the compressor unit 2 enters the cooling device 4 for cooling and liquefaction, and the Freon used by the heat exchanger 3 also enters the cooling device 4 for cooling and liquefaction. The compressor unit 2 and the heat exchanger 3 share a cooling device 4, which further saves costs. It should be noted that the Freon in the cooling component 1 is cooled by other equipment and becomes a low-temperature and low-pressure gas. The specific working principle can refer to the working principle of a refrigerator or an air conditioner. After the Freon is cooled, it needs to be compressed and heated before cooling. The Freon in the heat exchanger 3 directly becomes a relatively high-temperature and high-pressure gas after absorbing heat, so there is no need for further compression and it can be directly cooled. The first liquid storage tank 5 is used to store Freon, thereby ensuring the continuous supply of Freon. The condenser 6 provides cooling for other equipment. The Freon becomes a low-temperature and low-pressure Freon after passing through the condenser 6, and then returns to the compressor unit 2 for compression. The first liquid storage tank 5 is also connected to the heat exchanger 3. The first liquid storage tank 5 provides Freon for the condenser 6 and the heat exchanger 3 at the same time. The first liquid storage tank 5 is a siphon tank, which uses the height difference to provide Freon to the heat exchanger 3 and the condenser 6. The Freon flows from the first liquid storage tank 5 to the second liquid storage tank 7, and then flows to the condenser 6. The second liquid storage tank 7 can further ensure the supply of Freon to the condenser 6. The Freon is transported between the second liquid storage tank 7 and the condenser 6 by the pressure difference.

[0039] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1.

[0040] Example 3

[0041] Based on Example 1 or Example 2, Example 1 or Example 2 is further limited, and the difference is that:

[0042] like Figure 2As shown, the cooling device 4 includes an active heat sink 401 connected to both the compressor unit 2 and the heat exchanger 3 at one end, a circulating water pool 402, a water pipe 403 connected to the circulating water pool 402, a pump body 404 installed on the water pipe 403, and a fan 405 for the active heat sink 401 to dissipate heat. The other end of the active heat sink 401 is connected to the first liquid storage tank 5. The end of the water pipe 403 is arranged toward the active heat sink 401 and is used for spraying and cooling. The active heat sink 401 is located above the circulating water pool 402, and a spray head 406 is installed at the end of the water pipe 403. Figure 3 As shown, it also includes an oil separator 8 connected to the second liquid storage tank 7 , and the oil separator 8 is located between the second liquid storage tank 7 and the condenser 6 .

[0043] In the cooling device 4, after the Freon flows through the active heat sink 401, the heat is dissipated to the outside through the active heat sink 401, and then the temperature is reduced, and then it returns to the first liquid storage tank 5 after the temperature is reduced. The active heat sink 401 can be a tubular evaporator, a tubular radiator, or a finned tube. The pump body 404 pumps up the water in the circulating water pool 402, and sprays the water onto the active heat sink 401 through the water pipe 403, so as to further cool the active heat sink 401 and the Freon. The active heat sink 401 is located above the circulating water pool 402, and the water after spraying returns to the circulating water pool 402. At the same time, the circulating water pool 402 is also connected to the water inlet pipe 403 to ensure the water level of the circulating water pool 402. The fan 405 blows air toward the active heat sink 401 to further cool the active heat sink 401 and the Freon. A spray head 406 is installed at the end of the water pipe 403 to ensure the spraying effect. After the Freon is compressed by the compressor unit 2, some engine oil will be dissolved in it. The vaporized engine oil after the condenser 6 will precipitate and adhere to the condenser 6, which will reduce the working effect of the condenser 6. An oil separator 8 is set between the condenser 6 and the second liquid storage tank 7 to separate the engine oil dissolved in the liquid Freon to prevent the engine oil from adhering to the condenser 6.

[0044] The rest of the working principle and working process of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0045] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A cooling system, characterized in that: include: A refrigeration component (1) using Freon as a cooling medium, a compressor unit (2) connected to the refrigeration component (1) and used to compress the Freon, and a heat exchanger (3) connected to the compressor unit (2); the heat exchanger (3) is also connected to the refrigeration component (1) and uses Freon as a heat exchange medium.

2. A cooling system according to claim 1, characterized in that: The cooling assembly (1) comprises a cooling device (4) connected to both the compressor unit (2) and the heat exchanger (3), and the cooling device (4) is used to cool the Freon.

3. A cooling system according to claim 2, characterized in that: The cooling assembly (1) further comprises a first liquid storage tank (5) connected to the cooling device (4) and a condenser (6) connected to the first liquid storage tank (5); the condenser (6) is also connected to the compressor unit (2), the compressor unit (2) is used to compress the Freon after passing through the condenser (6), and the first liquid storage tank (5) is also connected to the heat exchanger (3).

4. A cooling system according to claim 3, characterized in that: The cooling assembly (1) further comprises a second liquid storage tank (7) having one end connected to the first liquid storage tank (5), the second liquid storage tank (7) being located between the first liquid storage tank (5) and the condenser (6), the other end of the second liquid storage tank (7) being connected to the condenser (6), the first liquid storage tank (5) being a siphon tank and being arranged at a height higher than the heat exchanger (3) and the second liquid storage tank (7).

5. A cooling system according to claim 4, characterized in that: The temperature reduction device (4) comprises an active heat sink (401) having one end connected to both the compressor unit (2) and the heat exchanger (3), and the other end of the active heat sink (401) is connected to the first liquid storage tank (5).

6. A cooling system according to claim 5, characterized in that: The cooling device (4) further comprises a circulating water pool (402), a water pipe (403) connected to the circulating water pool (402), and a pump body (404) installed on the water pipe (403); the end of the water pipe (403) is arranged toward the active heat sink (401) and is used for spraying and cooling; the active heat sink (401) is located above the circulating water pool (402).

7. A cooling system according to claim 6, characterized in that: The temperature reduction device (4) further comprises a fan (405) for dissipating heat for the active heat dissipation element (401).

8. A cooling system according to claim 6, characterized in that: A spray head (406) is installed at the end of the water pipe (403).

9. A cooling system according to any one of claims 1 to 8, characterized in that: The heat exchanger (3) is a shell-and-tube heat exchanger (3).

10. A cooling system according to any one of claims 4 to 8, characterized in that: It also includes an oil separator (8) connected to the second liquid storage tank (7), and the oil separator (8) is located between the second liquid storage tank (7) and the condenser (6).

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