Refrigerant distributor

Abstract

The utility model relates to the technical field of refrigerant distributors, in particular to a refrigerant distributor. The refrigerant distributor comprises a shell, a liquid inlet pipe is fixedly installed at one end of the shell, and a plurality of liquid distribution pipes are fixedly installed on the other side of the shell. A plurality of annularly-distributed liquid drainage branch openings are formed in the pipe wall of the liquid distribution pipe, and plugging covers used for plugging the liquid drainage branch openings are arranged in the pipe wall of the liquid distribution pipe; and the plugging covers are elastically arranged in the liquid distribution pipe. According to the refrigerant distributor provided by the utility model, after the refrigerant flows into the shell, the plugging cover enables the spring to be stretched under the action of the liquid gravity of the refrigerant, so that the plugging cover slides outwards along the liquid distribution pipe until the plugging cover and the liquid discharge branch opening are staggered and the liquid discharge branch opening is exposed, and the refrigerant in the shell can be quickly discharged; meanwhile, as the specifications of the springs in the plugging covers are the same, the liquid flow and flow velocity of the liquid distribution pipes are ensured to be consistent and uniform, and the situation that the flow distribution is not uniform due to pipeline bubbles is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerant distributors, in particular to a refrigerant distributor. Background Art

[0002] Refrigerant distributor, also known as liquid distributor or liquid distributor, is an important part in refrigeration and air conditioning system. Its main function is to evenly distribute the refrigerant output by the compressor to each channel of the evaporator to meet different refrigeration needs. The refrigerant distributor is composed of multiple parts, including liquid inlet head, liquid separation cone, liquid outlet head, etc. Traditional liquid distributors such as Figure 3 As shown, it includes a main port a, a cavity b, a cone c and a pipe port d. The refrigerant liquid enters the cavity b from the lower main port a of the liquid distributor, and is distributed to multiple pipe ports d through the cone c inside the cavity b. When the refrigerant flow rate is small, this type of liquid distributor may have the hidden danger of no refrigerant flowing out of a liquid outlet pipe.

[0003] Therefore, it is necessary to provide a new refrigerant distributor to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a refrigerant distributor.

[0005] The refrigerant distributor provided by the utility model comprises a shell, one end of which is fixedly mounted with a liquid inlet pipe, and the other side of which is fixedly mounted with a plurality of annularly distributed liquid distribution pipes;

[0006] A plurality of annularly distributed liquid discharge outlets are provided on the wall of each liquid dispensing tube, and a blocking cap for blocking the liquid discharge outlets is provided inside the tube, and the blocking cap is elastically arranged inside the liquid dispensing tube.

[0007] Preferably, a plurality of brackets distributed in an annular manner are installed on the inner wall of the shell, and the brackets correspond to the liquid dispensing tubes one by one.

[0008] Preferably, a spring is fixedly embedded in each of the brackets, and the other end of the spring is fixedly connected to the inner cover wall of the sealing cover.

[0009] Preferably, a plurality of annularly distributed limiting sliding blocks are fixedly embedded in the side wall of the blocking cover, and the limiting sliding blocks are respectively inserted into a plurality of axially distributed limiting sliding grooves provided in the liquid dispensing tube and are slidably connected with the limiting sliding grooves.

[0010] Preferably, the tube head of the liquid dispensing tube is fixedly mounted with an abutment ring.

[0011] Preferably, the bracket is provided with a plurality of annularly distributed liquid inlet cavities.

[0012] Compared with the related art, the refrigerant distributor provided by the utility model has the following beneficial effects:

[0013] In the utility model, when the refrigerant flow flows into the shell, the sealing cover is stretched by the liquid gravity of the refrigerant, so that the spring is stretched, so that the sealing cover slides outward along the liquid distribution pipe until the sealing cover and the discharge branch are misaligned and the discharge branch is exposed, so that the refrigerant in the shell can be discharged quickly. At the same time, since the spring specifications of each sealing cover are the same, the liquid flow and flow rate of multiple liquid distribution pipes are guaranteed to be consistent and uniform, avoiding the situation where the flow distribution is uneven due to air bubbles in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the refrigerant distributor provided by the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the dispensing tube shown.

[0016] Figure 3 It is a schematic diagram of the structure of a traditional liquid distributor.

[0017] Numbers in the figure: 1, shell; 2, liquid inlet pipe; 3, liquid distribution pipe; 3a, liquid discharge branch; 3b, limiting slide groove; 4, blocking cover; 5, bracket; 5a, liquid inlet chamber; 6, spring; 7, limiting slider; 8, abutment ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] See also Figure 1 to Figure 2 An embodiment of the utility model provides a refrigerant distributor, which includes: a shell 1, a liquid inlet pipe 2 and a liquid distribution pipe 3.

[0021] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 A liquid inlet pipe 2 is fixedly installed at one end of the shell 1, and a plurality of annularly distributed liquid distributing pipes 3 are fixedly installed at the other side of the shell 1, and a plurality of annularly distributed liquid distributing pipes 3 are opened on the tube wall of each of the liquid distributing pipes 3 and a sealing cover 4 for sealing the liquid distributing pipes 3a is provided therein, and the sealing cover 4 is elastically provided inside the liquid distributing pipe 3;

[0022] Specifically, a plurality of annularly distributed brackets 5 are installed on the inner wall of the shell 1, and a plurality of annularly distributed liquid inlet cavities 5a are opened on the brackets 5. The brackets 5 correspond to the liquid dispensing tubes 3 one by one, and each of the brackets 5 has a spring 6 fixedly embedded therein, and the other end of the spring 6 is fixedly connected to the inner cover wall of the sealing cover 4.

[0023] It should be noted that: when the refrigerant liquid enters the shell 1 through the liquid inlet pipe 2, the refrigerant liquid is collected at the lower part of the distribution shell 1 due to the weight, while the upper part of the shell 1 is all gas, so that no gas will appear in the liquid distribution pipe 3 to generate bubbles;

[0024] When the refrigerant flow flows into the shell 1, the plugging cover 4, under the action of the liquid gravity of the refrigerant, stretches the spring 6, so that the plugging cover 4 slides outward along the liquid distribution pipe 3 until the plugging cover 4 is misaligned with the discharge branch 3a and the discharge branch 3a is exposed, so that the refrigerant in the shell 1 can be quickly discharged. At the same time, since the springs 6 in each plugging cover 4 have the same specifications, the liquid flow and flow rate of multiple liquid distribution pipes 3 are guaranteed to be consistent and uniform, avoiding the situation where the flow distribution is uneven due to bubbles in the pipeline;

[0025] When there is no refrigerant in the shell 1, the sealing cover 4 seals the drain branch 3a under the elastic force of the spring 6, thereby preventing the inside of the shell 1 from being contaminated by the reflux liquid.

[0026] The side wall of the blocking cover 4 is fixedly embedded with a plurality of annularly distributed limiting sliders 7, and the limiting sliders 7 are respectively inserted into a plurality of axially distributed limiting slide grooves 3b provided in the liquid dispensing tube 3 and are slidably connected with the limiting slide grooves 3b, thereby improving the stability of the blocking cover 4 when sliding;

[0027] The tube head of the liquid dispensing tube 3 is fixedly mounted with an abutment ring 8 , thereby preventing the blocking cover 4 from slipping off the tube head of the liquid dispensing tube 3 .

[0028] The working principle of the refrigerant distributor provided by the utility model is as follows:

[0029] When the refrigerant liquid enters the shell 1 through the liquid inlet pipe 2, the refrigerant liquid is collected at the lower part of the distribution shell 1 due to the action of weight, while the upper part of the shell 1 is all gas, so that there will be no gas in the distribution tube 3 to generate bubbles. When the refrigerant flow flows into the shell 1, the sealing cover 4 is stretched by the liquid gravity of the refrigerant, so that the spring 6 is stretched, so that the sealing cover 4 slides outward along the distribution tube 3 until the sealing cover 4 is misaligned with the discharge branch 3a and the discharge branch 3a is exposed, so that the refrigerant in the shell 1 can be discharged quickly. At the same time, since the specifications of the springs 6 in each sealing cover 4 are the same, the liquid flow and flow rate of multiple distribution tubes 3 are guaranteed to be consistent and uniform, avoiding the situation where the flow distribution is uneven due to bubbles in the pipeline; and when there is no refrigerant in the shell 1, the sealing cover 4 seals the discharge branch 3a under the elastic force of the spring 6, thereby avoiding the contamination of the inside of the shell 1 by the reflux liquid.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A refrigerant distributor, characterized in that: It comprises a shell (1), one end of which is fixedly mounted a liquid inlet pipe (2), and the other side of which is fixedly mounted a plurality of annularly distributed liquid distributing pipes (3); The wall of each of the liquid dispensing tubes (3) is provided with a plurality of annularly distributed liquid discharge outlets (3a) and a sealing cap (4) for sealing the liquid discharge outlets (3a). The sealing cap (4) is elastically arranged in the liquid dispensing tube (3).

2. The refrigerant distributor according to claim 1, characterized in that: A plurality of brackets (5) distributed in an annular manner are installed on the inner wall of the housing (1), and the brackets (5) correspond one to one with the liquid dispensing tubes (3).

3. The refrigerant distributor according to claim 2, characterized in that: A spring (6) is fixedly embedded in each of the brackets (5), and the other end of the spring (6) is fixedly connected to the inner cover wall of the blocking cover (4).

4. The refrigerant distributor according to claim 1, characterized in that: A plurality of annularly distributed limiting slide blocks (7) are fixedly embedded on the side wall of the blocking cover (4); the limiting slide blocks (7) are respectively inserted into a plurality of axially distributed limiting slide grooves (3b) provided in the liquid dispensing tube (3) and are slidably connected to the limiting slide grooves (3b).

5. The refrigerant distributor according to claim 1, characterized in that: The tube head of the liquid dispensing tube (3) is fixedly mounted with an abutment ring (8).

6. The refrigerant distributor according to claim 2, characterized in that: The support (5) is provided with a plurality of liquid inlet cavities (5a) distributed in an annular manner.

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