Liquid distribution head applied to co2 refrigerating system and capable of avoiding excessive pressure drop

Abstract

The utility model belongs to the technical field of liquid distribution heads, and particularly relates to a liquid distribution head applied to a co2 refrigerating system and capable of avoiding overlarge pressure drop, which comprises a pipe body and a connecting cylinder, a flow distribution cone is fixedly mounted in the pipe body, a liquid distribution capillary tube insertion hole is formed in the pipe body, a weight reduction groove is formed in the pipe body, and a liquid distribution capillary tube insertion hole is formed in the connecting cylinder. And flow equalizing holes are formed in the flow equalizing plate. The gap between the pipe body and the connecting pipe does not exceed one millimeter, so that when the liquid distribution heads are fixed through the connecting pipe, the liquid distribution heads can be mounted in an aligned mode, fluid can smoothly enter the liquid distribution heads without changing the flowing direction and the flowing speed, the pipe body and the connecting cylinder are made of metal materials, and the liquid distribution heads can be welded through the connecting cylinder; the connecting cylinder is provided with two threads, welding slag is prevented from entering the liquid distribution head to block a flow channel, and the liquid distribution head and the throttling mechanism can be fixed through the connecting cylinder and work smoothly by arranging two second threads in the connecting cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of liquid distributor technology, specifically relating to a liquid distributor applied to CO2 refrigeration systems that can avoid excessive pressure drop. Background Technology

[0002] The distributor in a refrigeration system is a key component. Its main function is to evenly distribute the refrigerant flowing from the expansion valve to various parts of the evaporator. The design and structure of the distributor directly affect the performance and efficiency of the refrigeration system.

[0003] In refrigeration systems, the distributor head can cause significant resistance loss due to processing and installation issues. During welding, weld slag can easily be welded into the interior of the distributor head, causing blockage of the flow channel. Furthermore, the tilted installation position of the distributor head can affect the direction and speed of fluid flow, thus affecting the distribution effect. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a liquid distributor for use in CO refrigeration systems that avoids excessive pressure drop, thus solving the problem that tilting the installation position of the liquid distributor affects the direction and speed of fluid flow, thereby affecting the liquid distribution effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid distributor for use in CO refrigeration systems that avoids excessive pressure drop, comprising a tube body and a connecting cylinder. A flow-dividing cone is fixedly installed inside the tube body. A flow-dividing capillary insertion hole is opened inside the tube body. A weight-reducing groove is opened inside the tube body. A first-order thread is opened at one end of the tube body. A flow-equalizing plate is fixedly installed inside the tube body. A flow-equalizing hole is opened inside the flow-equalizing plate. The flow-equalizing plate divides the inside of the tube body into a mixing chamber. A second-order thread is opened inside the connecting cylinder.

[0006] Preferably, both the tube body and the connecting cylinder are made of metal, and the gap between the tube body and the connecting cylinder does not exceed one millimeter.

[0007] Preferably, the connecting cylinder is threaded to the outside of the pipe body, and there are two No. 2 threads inside the connecting cylinder.

[0008] Preferably, the flow divider cone is located inside the mixing chamber, and the tip of the flow divider cone is directly opposite the flow equalization orifice.

[0009] Preferably, there are multiple liquid dispensing capillary insertion holes, and the multiple liquid dispensing capillary insertion holes are arranged in a circular array inside the tube body.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This distributor head, applied to CO2 refrigeration systems, avoids excessive pressure drop. By ensuring the gap between the pipe body and the connecting pipe is no more than one millimeter, the distributor head can be aligned during installation when fixed through the connecting pipe. This allows the fluid to flow smoothly into the distributor head with consistent direction and speed. Since both the pipe body and the connecting cylinder are made of metal, welding the distributor head through the connecting cylinder prevents weld slag from entering the distributor head and causing flow channel blockage. Two No. 2 threads inside the connecting cylinder allow the distributor head to be fixed to the throttling mechanism and operate smoothly.

[0012] 2. This liquid distributor, applied to CO refrigeration systems, avoids excessive pressure drop. By positioning the flow-dividing cone inside the mixing chamber with its tip directly facing the flow equalization orifice, the gas-liquid mixture entering the mixing chamber is guided by the flow-dividing cone into the liquid-dividing capillary orifice, thus separating the refrigerant. By arranging multiple liquid-dividing capillary orifices in a circular array inside the tube body, the refrigerant can be divided into multiple streams that enter the evaporator, improving the evaporator's working efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:

[0014] Figure 1 This is a complete structural schematic diagram of the present invention;

[0015] Figure 2 This is a perspective view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Pipe body; 2. Connecting cylinder; 3. Diverting cone; 4. Separating capillary insertion hole; 5. Weight reduction groove; 6. No. 1 thread; 7. Flow equalization plate; 8. Flow equalization hole; 9. Mixing chamber; 10. No. 2 thread. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 The present invention provides the following technical solution: a liquid distributor for use in a CO2 refrigeration system that can avoid excessive pressure drop, comprising a tube body 1 and a connecting cylinder 2. A flow-dividing cone 3 is fixedly installed inside the tube body 1. A liquid-dividing capillary insertion hole 4 is opened inside the tube body 1. A weight-reducing groove 5 is opened inside the tube body 1. A first-order thread 6 is opened at one end of the tube body 1. A flow-equalizing plate 7 is fixedly installed inside the tube body 1. A flow-equalizing hole 8 is opened inside the flow-equalizing plate 7. The flow-equalizing plate 7 divides the inside of the tube body 1 into a mixing chamber 9. A second-order thread 10 is opened inside the connecting cylinder 2.

[0020] In this embodiment, by ensuring that the gap between the pipe body 1 and the connecting pipe 2 is no more than one millimeter, the liquid distributor can be aligned and installed when it is fixed by the connecting pipe 2, allowing the fluid to flow smoothly into the interior of the liquid distributor without changing its direction and speed. By making both the pipe body 1 and the connecting pipe 2 metal, the liquid distributor can be welded to the connecting pipe 2, preventing welding slag from entering the interior of the liquid distributor and causing flow channel blockage. The two No. 2 threads inside the connecting pipe 2 allow the liquid distributor to be fixed to the throttling mechanism through the connecting pipe 2 and to work smoothly. By positioning the flow divider cone 3 inside the mixing chamber 9 with its tip facing the flow equalization hole 8, the gas-liquid mixture entering the mixing chamber 9 can be guided by the flow divider cone 3 into the liquid distributor capillary insertion hole 4, allowing the refrigerant to be separated. By opening multiple liquid distributor capillary insertion holes 4 in a circular array inside the pipe body 1, the refrigerant can be divided into multiple streams of fluid to enter the evaporator, improving the working efficiency of the evaporator.

[0021] Specifically, both the pipe body 1 and the connecting cylinder 2 are made of metal, and the gap between the pipe body 1 and the connecting cylinder 2 is no more than one millimeter. By ensuring that the gap between the pipe body 1 and the connecting cylinder 2 is no more than one millimeter, the distributor head can be aligned and installed when it is fixed through the connecting cylinder 2, so that the fluid flow direction and speed remain unchanged and smoothly enter the interior of the distributor head. By making both the pipe body 1 and the connecting cylinder 2 made of metal, the distributor head can be welded through the connecting cylinder 2, preventing welding slag from entering the interior of the distributor head and causing blockage of the flow channel.

[0022] Specifically, the connecting cylinder 2 is threaded to the outside of the pipe body 1, and there are two No. 2 threads inside the connecting cylinder 2. By having two No. 2 threads inside the connecting cylinder 2, the liquid separator can be fixed to the throttling mechanism through the connecting cylinder 2 and work smoothly.

[0023] Specifically, the flow divider cone 3 is located inside the mixing chamber 9, and the tip of the flow divider cone 3 is directly facing the flow equalization hole 8. By placing the flow divider cone 3 inside the mixing chamber 9 and having its tip directly facing the flow equalization hole 8, the gas-liquid mixture entering the mixing chamber 9 can be guided by the flow divider cone 3 into the liquid distribution capillary insertion hole 4 to allow the refrigerant to be separated.

[0024] Specifically, there are multiple liquid distribution capillary insertion holes 4, and these multiple liquid distribution capillary insertion holes 4 are arranged in a circular array inside the tube body 1. By arranging the multiple liquid distribution capillary insertion holes 4 in a circular array inside the tube body 1, the refrigerant can be divided into multiple streams of fluid to enter the evaporator, thereby improving the working efficiency of the evaporator.

[0025] The working principle or usage process of this utility model is as follows: When using this utility model, firstly, the liquid distributor head is connected to the throttling mechanism through the No. 2 thread 10 inside the connecting cylinder 2. The liquid distributor head is restricted by the connecting cylinder 2 so that it can be aligned with the throttling mechanism. Then, the welding gun is used to weld the two ends of the connecting cylinder 2 to fix the liquid distributor head. During welding, the welding slag is blocked by the No. 1 thread 6 and the No. 2 thread 10, and at most it will be between the pipe body 1 and the connecting cylinder 2 to prevent the welding slag from blocking the flow channel. Then, the refrigerant enters the pipe body 1 through the throttling mechanism. When the refrigerant passes through the flow equalization hole 8 inside the flow equalization plate 7, the cross section suddenly contracts, the flow rate of the refrigerant increases, and it enters the mixing chamber 9 to make the refrigerant mix evenly. Then, the refrigerant is guided into the interior of the liquid distributor capillary insertion hole 4 through the flow divider cone 3 for liquid separation and then into the interior of the evaporator.

[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid distributor for use in CO2 refrigeration systems to avoid excessive pressure drop, comprising a tube body (1) and a connecting cylinder (2), characterized in that: A flow divider cone (3) is fixedly installed inside the tube body (1). A liquid-distributing capillary insertion hole (4) is opened inside the tube body (1). A weight-reducing groove (5) is opened inside the tube body (1). A first-order thread (6) is opened at one end of the tube body (1). A flow equalization plate (7) is fixedly installed inside the tube body (1). A flow equalization hole (8) is opened inside the flow equalization plate (7). The flow equalization plate (7) divides the inside of the tube body (1) into a mixing chamber (9). A second-order thread (10) is opened inside the connecting cylinder (2).

2. The distributor head for use in a CO2 refrigeration system according to claim 1, characterized in that: Both the tube (1) and the connecting cylinder (2) are made of metal, and the gap between the tube (1) and the connecting cylinder (2) is no more than one millimeter.

3. A distributor head for use in CO2 refrigeration systems to avoid excessive pressure drop, as described in claim 1, characterized in that: The connecting cylinder (2) is threaded to the outside of the pipe body (1), and there are two No. 2 threads inside the connecting cylinder (2).

4. A distributor head for use in CO2 refrigeration systems to avoid excessive pressure drop, as described in claim 1, characterized in that: The flow divider cone (3) is located inside the mixing chamber (9), and the tip of the flow divider cone (3) is directly opposite the flow equalization hole (8).

5. A distributor head for use in a CO2 refrigeration system to avoid excessive pressure drop, as described in claim 1, characterized in that: There are multiple liquid-dispensing capillary insertion holes (4), and the multiple liquid-dispensing capillary insertion holes (4) are arranged in a circular array inside the tube body (1).

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