Efficient distributor for refrigeration house

Abstract

The invention discloses an efficient distributor for a refrigeration house, which comprises a main body, the sealing cover is fixedly arranged at the top end of the main body, the branching disc is fixedly arranged at the bottom end of the main body and used for sealing the bottom end of the main body, the liquid distribution needle column is fixedly inserted into a disc body of the branching disc and used for achieving coolant liquid distribution, and the liquid supply pipe is fixedly arranged in the middle of the branching disc and penetrates through the branching disc. The liquid supply pipe is arranged in the main body and used for supplying a coolant into the main body, the flow dividing cover is arranged in the main body and fixedly connected with the liquid supply pipe, the content of flash evaporation gas of the refrigerant discharged out of coolant liquid is reduced to a certain extent, and the discharge amount of the coolant liquid is more uniform through the liquid discharge mode; the influence on the refrigerating system caused by uneven distribution of the coolant liquid is reduced, the influence on the effect of the evaporator is reduced through even distribution of the coolant liquid, and the control precision of the refrigerating system and the adjusting range of the refrigerating capacity are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of distributors, in particular to a high-efficiency distributor for cold storage. Background Art

[0002] The distributor is a device that plays an important role in the refrigeration system. It is mainly used to achieve the average distribution of refrigerant. By evenly distributing the refrigerant, the working pressure and temperature of each part of the refrigeration system are more stable, which helps to reduce the probability of fluctuations and failures in the system and improve the reliability and stability of the system. When the refrigerant can be evenly distributed to each evaporator, the heat exchange efficiency of the evaporator will be improved. The uniform distribution of the refrigerant can make the temperature of the evaporator surface more uniform, thereby enhancing the heat exchange effect with the object to be cooled or the flash gas of the refrigerant. Reasonable refrigerant distribution can also reduce the energy loss of the system and improve the energy efficiency ratio of the entire refrigeration system.

[0003] The traditional distributor is mainly composed of a diversion head and a liquid distribution pipeline. After the refrigerant enters the cavity, it is directly distributed to each outlet by diversion. The distribution accuracy is relatively low. The load change of the refrigeration system will affect the flow and pressure distribution of the refrigerant. When the traditional distributor is supplying liquid, the amount of flash gas of the refrigerant entering different diversion pipelines cannot be controlled due to the flash gas of the refrigerant in the coolant, and the flash gas of the refrigerant cannot be restricted, which leads to uneven distribution of the traditional distributor, thereby affecting the stability, refrigeration effect, service life, adjustment accuracy and cooling capacity adjustment range of the refrigeration system, affecting the actual effect after the response of the refrigeration system command. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency distributor for cold storage, so as to solve the problem proposed in the above background technology that the traditional distributor is mainly composed of a diverter head and a liquid distribution pipeline. After the refrigerant enters the cavity, it is directly distributed to each outlet by diversion. The distribution accuracy is relatively low. The load change of the refrigeration system will affect the flow rate and pressure distribution of the refrigerant. When the traditional distributor is supplying liquid, due to the flash gas of the refrigerant in the coolant, the amount of the flash gas of the refrigerant entering the different diversion pipelines cannot be controlled, and the flash gas of the refrigerant cannot be restricted, which leads to the problem of uneven diversion of the traditional distributor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a main body, and further comprising;

[0006] A sealing cover, fixedly disposed on the top of the main body, for sealing the top of the main body;

[0007] A branching disc, fixedly arranged at the bottom end of the main body, for sealing the bottom end of the main body;

[0008] A liquid dispensing needle column is fixedly inserted into the body of the dispensing disc to achieve coolant liquid distribution;

[0009] A liquid supply pipe, fixedly arranged in the middle of the branch disc and passing through the branch disc;

[0010] The splitter hood is arranged inside the main body and the splitter hood is fixedly connected to the liquid supply pipe, which is used to supply coolant to the inside of the main body. The coolant liquid enters the liquid storage cavity formed by the main body, the sealing cover, the branch disc and the splitter hood through the liquid supply pipe. The liquid is deposited to the bottom of the cavity due to the influence of gravity, and the flash gas of the refrigerant is above the coolant liquid. Then, due to the increase of coolant liquid in the cavity, the coolant liquid level rises, so that the coolant liquid is discharged through the drainage groove provided on the wall of the liquid separator needle column. In this process, the liquid makes the flash gas of the refrigerant retained in the coolant liquid remain in the liquid storage cavity, which reduces the flash gas content of the refrigerant in the discharged coolant liquid to a certain extent, and the discharge amount of the coolant liquid is more uniform through this drainage method, which reduces the influence of uneven distribution of the coolant liquid on the refrigeration system, reduces the influence on the effect of the evaporator through uniform distribution of the coolant liquid, and ensures the control accuracy of the refrigeration system and the adjustment range of the cooling capacity.

[0011] Preferably, the edge of the top surface of the cover is arc-shaped and is connected to the top of the main body by welding, so that the connection is more stable and the connection method has high strength and can withstand large loads and stresses, ensuring structural safety and achieving good sealing performance to ensure that the equipment does not leak under harsh conditions.

[0012] Preferably, the branch disk body is provided with a plurality of through holes distributed in an equidistant array with the center of the branch disk body as the axis near the edge, and another circular through hole is provided in the middle of the branch disk body to provide a channel for the installation of the liquid separating needle column and the liquid supply tube, so as to ensure the structural integrity of the liquid separating needle column and the liquid supply tube and ensure their performance.

[0013] Preferably, a plurality of slots are equidistantly formed on the side wall of the diverter hood, and a through hole is formed in the middle of the diverter hood, so that diversion is achieved when the coolant liquid enters the diverter hood.

[0014] Preferably, the body of the separating needle column extends into the interior of the main body through a through hole near the edge of the branch disk, and the top of the separating needle column does not contact the diversion cover. The wall of the separating needle column is provided with a liquid inlet groove so that the internal coolant liquid can enter through the liquid inlet groove.

[0015] Preferably, the liquid supply pipe body enters the interior of the main body through another circular through hole opened in the middle of the branch disk body, the top end of the liquid supply pipe contacts the diverter cover, and the top end of the liquid supply pipe is welded to the wall of the through hole in the middle of the diverter cover to transport the coolant liquid to the interior of the main body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the device is in use, the coolant liquid enters the liquid storage cavity formed by the main body, the sealing cover, the branch disc and the diverter cover through the liquid supply pipe. The liquid is deposited to the bottom of the cavity due to the influence of gravity, and the flash gas of the refrigerant is above the coolant liquid. Then, due to the increase of coolant liquid in the cavity, the coolant liquid level rises, and the coolant liquid is discharged through the drainage groove provided on the wall of the liquid separator needle column. In this process, the liquid makes the flash gas of the refrigerant retained in the coolant liquid remain in the liquid storage cavity, which reduces the flash gas content of the refrigerant in the discharged coolant liquid to a certain extent, and the discharge amount of the coolant liquid is more uniform through this drainage method, which reduces the influence of uneven distribution of the coolant liquid on the refrigeration system, reduces the influence on the effect of the evaporator through uniform distribution of the coolant liquid, and ensures the control accuracy of the refrigeration system and the adjustment range of the refrigeration capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a schematic diagram of the branch disc structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the liquid separation needle column of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the splitter cover of the present invention.

[0023] In the figure: 1. main body; 2. sealing cover; 3. branching disc; 4. splitter cover; 5. liquid dispensing needle column; 6. liquid supply tube. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1-5 , the present invention provides a high-efficiency dispenser for cold storage, comprising a main body 1, and also comprising;

[0026] The sealing cover 2 is fixedly arranged on the top of the main body 1 and is used to seal the top of the main body 1;

[0027] The branching disc 3 is fixedly arranged at the bottom end of the main body 1 and is used to seal the bottom end of the main body 1;

[0028] The liquid dispensing needle column 5 is fixedly inserted into the body of the branching disc 3 and is used to achieve the coolant liquid distribution;

[0029] The liquid supply pipe 6 is fixedly arranged in the middle of the branch disk 3 and passes through the branch disk 3, and is used to supply the coolant to the inside of the main body 1;

[0030] A flow divider 4 is disposed inside the main body 1 and is fixedly connected to the liquid supply pipe 6;

[0031] The edge of the top surface of the cover 2 is arc-shaped and is connected to the top of the main body 1 by welding. The fixing method in the device adopts laser welding. The branch disc 3 is fixedly arranged at the bottom end of the main body 1 to seal the bottom end of the main body 1. The connection method of the cover 2, the branch disc 3, the splitter cover 4 and the main body 1, the liquid separation needle column 5, the liquid supply tube 6 and the branch disc 3 is laser welding. The laser welding method accurately connects the components without causing thermal damage to the surrounding components, so that the material properties near the welding area change less, and the mechanical properties and corrosion resistance of the parent material are maintained. At the same time, the laser welding position is accurately controllable, and the laser beam can be accurately focused to a specific welding position through an optical system to achieve high-precision positioning welding, improve strength and sealing,

[0032] A plurality of through holes are provided in an equidistant array with the center of the disk body of the branch disk 3 as the axis near the edge of the disk body of the branch disk 3. The number and position of the through holes are determined according to actual needs. Another circular through hole is provided in the middle of the disk body of the branch disk 3 for passing and fixing the liquid supply pipe 6. A plurality of notches are provided in an equidistant manner on the side wall of the shield body of the flow divider 4. A through hole is provided in the middle of the shield body to provide a discharge passage for the incoming coolant liquid and realize flow diversion. The body of the liquid separation needle column 5 extends into the interior of the main body 1 through the through hole near the edge of the disk body of the branch disk 3, and The top of the liquid separation needle column 5 does not contact the diverter hood 4. The wall of the liquid separation needle column 5 is provided with a drainage groove. The drainage groove on the liquid separation needle column 5 is used to adjust the pressure balance so that after the flash gas of the refrigerant inside the coolant liquid is discharged, the pressure is balanced during the transfer, which is convenient for uniform distribution of the drainage. The body of the liquid supply pipe 6 enters the interior of the main body 1 through another circular through hole opened in the middle of the body of the branch disk 3. The top of the liquid supply pipe 6 contacts the diverter hood 4, so that after the coolant liquid enters the main body 1 through the liquid supply pipe 6, it impacts the diverter hood 4 so that part of the coolant liquid is diverted through the notch.

[0033] When using the embodiment of the present application:

[0034] When the device is used, the bottom end of the liquid-separating needle column 5 is connected to the liquid-separating pipeline, and the bottom end of the liquid-supplying pipe 6 is connected to the coolant supply pipeline. The coolant liquid enters the liquid storage cavity formed by the main body 1, the cover 2, and the branch disc 3 through the liquid-supplying pipe 6. The liquid is deposited due to the influence of gravity, and the flash gas of the refrigerant is above the coolant liquid. Then, due to the increase of the coolant liquid in the cavity, the coolant liquid level rises, so that the coolant liquid is discharged through the liquid inlet groove provided on the wall of the liquid-separating needle column 5;

[0035] When the device is used, the coolant is evenly distributed, and each refrigeration cycle link can get an appropriate amount of refrigerant, ensuring that the temperature of the evaporator surface is more uniform, so that the evaporator can more fully exchange heat with the flash gas or object of the refrigerant to be cooled, thereby improving the heat transfer efficiency, thereby expanding the effective refrigeration range, expanding the regulation of refrigeration capacity, and avoiding the unstable performance of the refrigeration system caused by excessive or insufficient local refrigerant. The uniform refrigerant distribution helps the system to operate stably, reduce energy loss, and enable the refrigeration equipment to maintain a lower temperature in a larger range. The average distribution of refrigerant can ensure that each evaporator can perform at its best performance, and each evaporator can perform at its designed temperature. It works efficiently within the refrigeration range, thereby expanding the total refrigeration range of the refrigeration equipment as a whole. The evenly distributed refrigerant can make the system pressure fluctuate within a reasonable range, improve the reliability and stability of the system, and then ensure the stability of the refrigeration range. The evenly distributed refrigerant can reduce the uneven wear of various components in the refrigeration system, avoid certain parts from being subjected to excessive pressure due to excessive refrigerant, and also prevent other parts from excessive dry friction due to insufficient refrigerant, which helps to extend the service life of the refrigeration equipment, ensure that it maintains good refrigeration performance and a larger refrigeration range for a longer period of time, reduce the maintenance cost of the system, and thus provide a more lasting and stable refrigeration service.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency dispenser for cold storage, comprising a main body (1), characterized in that: Also includes; A sealing cover (2) is fixedly arranged on the top of the main body (1) and is used to seal the top of the main body (1); A branching disc (3) is fixedly arranged at the bottom end of the main body (1) and is used to seal the bottom end of the main body (1); A liquid dispensing needle column (5) is fixedly inserted into the body of the branching disc (3) and is used to achieve coolant liquid distribution; A liquid supply pipe (6) is fixedly arranged in the middle of the branch disc (3) and passes through the branch disc (3), and is used to supply coolant to the inside of the main body (1); A flow distribution cover (4) is arranged inside the main body (1) and the flow distribution cover (4) is fixedly connected to the liquid supply pipe (6).

2. The high-efficiency distributor for cold storage according to claim 1, characterized in that: The edge of the top surface of the sealing cover (2) is in an arc shape and is connected to the top of the main body (1) by welding.

3. The high-efficiency distributor for cold storage according to claim 1, characterized in that: The branch disk (3) is provided with a plurality of through holes arranged in an equidistant array near the edge thereof and with the center of the branch disk (3) as the axis, and another circular through hole is provided in the middle of the branch disk (3).

4. The high-efficiency distributor for cold storage according to claim 1, characterized in that: A plurality of slots are equidistantly provided on the side wall of the shroud body of the shroud (4), and a through hole is provided in the middle of the shroud (4).

5. The high-efficiency distributor for cold storage according to claim 1, characterized in that: The body of the liquid-separating needle column (5) extends into the interior of the main body (1) through a through hole located near the edge of the branching disc (3), and the top end of the liquid-separating needle column (5) does not contact the flow divider (4). The wall of the liquid-separating needle column (5) is provided with a liquid inlet groove.

6. The high-efficiency distributor for cold storage according to claim 1, characterized in that: The body of the liquid supply pipe (6) enters the interior of the main body (1) through another circular through hole opened in the middle of the body of the branch disc (3), and the top end of the liquid supply pipe (6) is in welding contact with the wall of the through hole in the middle of the flow dividing cover (4).

Images