Throttling device capable of achieving multi-stage pressure reduction

Abstract

The throttler comprises a body, the left side of the body is in threaded connection with a first threaded connector and is communicated with the first threaded connector, the right lower end of the body is in threaded connection with a second threaded connector and is communicated with the second threaded connector, a spring piece and a plurality of nozzles are sequentially arranged in the body from left to right, and the spring piece is tightly connected with the threaded connectors and the nozzles. The right angle of the body is in threaded connection with a plug screw. According to the throttling device, the multiple nozzles are structurally adopted, the multiple stages of pressure reducing holes are achieved, the throttling opening is subjected to pressure reduction step by step, the final pressure reducing purpose is achieved, the pressure of a medium is dispersed into the whole structure, too large pressure borne by a single valve cavity is avoided, and the requirement for the strength of materials of a throttling device body is lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of restrictors, and in particular to a restrictor capable of achieving multi-stage pressure reduction. Background Art

[0002] The main function of the restrictor in the pipeline is to throttle and reduce pressure. Traditional restrictors require manual operation, and the pressure reducing valve needs to be adjusted by a spring. Both are relatively troublesome, and it is difficult to guarantee the service life of the spring during use. This restrictor can adopt 9-stage throttle holes through calculation in terms of pressure reduction, without spring adjustment (the spring in this device does not have the function of adjusting and reducing pressure like the traditional pressure reducing valve spring), which greatly guarantees the safety and reliability of the equipment operation. From a technological perspective, it also greatly guarantees the coaxiality between the nozzle and the body and increases the service life. Summary of the Invention

[0003] In order to solve the above-mentioned deficiencies of the prior art, the present invention proposes a restrictor capable of achieving multi-stage pressure reduction.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A restrictor capable of achieving multi-stage pressure reduction, including a body, a first threaded joint is threadedly connected to the left side of the body and is in communication, a second threaded joint is threadedly connected to the lower right end of the body and is in communication, a spring member and a plurality of nozzles are sequentially arranged in the body from left to right, the spring member is tightly connected to the threaded joint and the nozzle, and a plug is threadedly connected to the right angle of the body.

[0005] Preferably, the spring member includes a washer and a spring. The washer is located on the right side of the threaded joint, and the spring member is located on the right side of the washer. It should be noted that since the washer has to bear the function of supporting the spring, the thickness of the washer should not be less than 5 mm.

[0006] Preferably, a pressure reduction hole is provided at the rear end of each nozzle.

[0007] Preferably, a fixing ring is sleeved on the right end of the body, which is used to strengthen the sealing between the plug and the body.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: This restrictor adopts multiple nozzles in terms of structure, realizes multi-stage pressure reduction holes, achieves the purpose of gradually reducing pressure at the throttle port to achieve the final pressure reduction, so that the pressure of the medium is dispersed throughout the structure, avoiding excessive pressure on a single valve cavity, reducing the strength requirement for the material of the restrictor body, and the extremely high coaxiality between the body and the nozzle ensures the reduction of wear during use and increases the service life of the restrictor. Brief Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the present invention.

[0010] Markings in the figure: 1. Body; 2. Washer; 3. Spring; 4. Nozzle; 5. Plug; 6. Fixed ring; 7. First threaded joint; 8. Second threaded joint; 9. Pressure relief hole. Detailed implementation mode

[0011] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0012] The present invention will be described in detail below with reference to the drawings and embodiments.

[0013] As Figure 1 As shown, a throttle device capable of realizing multi-stage pressure reduction proposed by the present invention includes a body 1. The left side of the body 1 is threadedly connected to a first threaded joint 7 and is communicated. The right lower end of the body 1 is threadedly connected to a second threaded joint 8 and is communicated. Inside the body 1, three springs 3 and four nozzles 4 are arranged in sequence from left to right. The three springs 3 are closely connected to the threaded joint and the nozzle 4. A plug 5 is threadedly connected at the right angle of the body 1.

[0014] As a preferred embodiment of the present invention, it may also have the following additional technical features: In this embodiment, the three springs 3 include a washer 2 and a spring 3. The washer 2 is located on the right side of the threaded joint, and the three springs 3 are located on the right side of the washer 2. It should be noted that since the washer 2 has to bear the load of the spring 3, the thickness of the washer 2 cannot be less than 5 mm.

[0015] In this embodiment, pressure relief holes 9 are opened at the rear ends of the nozzles 4.

[0016] In this embodiment, a fixed ring 6 is sleeved on the right end of the body 1 to fix and reinforce the sealing performance between the plug 5 and the body 1.

[0017] Installation steps: First, install the washer 2 inside the body 1 near the first threaded joint 7. Then, install the spring 3 on the right side of the washer 2. Next, install multiple nozzles 4 into the cavity of the body 1 one by one. Then, install the fixing ring 6 on the left side of the plug 5. Finally, tighten the plug 5 to complete the installation of the entire device. When in use, the medium enters the cavity of the body 1 through the first threaded joint 7 and then flows out through the second threaded joint 8 after achieving the goal of throttling and pressure reduction through various throttle devices. It should be noted that, in terms of processing, the body and the nozzles adopt the processes of rough turning, finish turning, grinding, and finally manual repeated polishing to ensure that the surface finish between the body and the nozzles is between 1 and 2 μm.

[0018] Working principle: Calculate the diameter of the nozzle orifice based on the pressures of the first spiral joint 7 and the second spiral joint 8. Determine the number of nozzles 4 according to the calculated diameter. The medium enters through the first threaded joint 7, passes through the first threaded joint 7, the nozzle 4, and the plug 5 respectively, and then flows out through the second threaded joint, achieving the function of medium throttling. Among them, the spring 3 is used to assist the nozzle in rebounding.

[0019] Those skilled in the art can flexibly select and design according to needs and are not limited thereto.

[0020] On the premise of no conflict, those skilled in the art can freely combine and superimpose the above-mentioned additional technical features.

[0021] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the patent and protection scope of the present invention should be subject to the appended claims.

Claims

1. A throttle that can achieve multi-stage pressure reduction, characterized in that: It includes a body (1), a first threaded joint (7) is threadedly connected to the left side of the body (1) and is in communication, a second threaded joint (8) is threadedly connected to the right lower end of the body (1) and is in communication, a spring (3) member and a plurality of nozzles (4) are sequentially arranged in the body (1) from left to right, the spring (3) member is closely connected to the threaded joint and the nozzle (4), and a plug (5) is threadedly connected to the right angle of the body (1).

2. The throttler capable of achieving multi-stage pressure reduction according to claim 1, characterized in that: The spring (3) member includes a washer (2) and a spring (3), the washer (2) is located on the right side of the threaded joint, and the spring (3) member is located on the right side of the washer (2).

3. The throttler capable of achieving multi-stage pressure reduction according to claim 2, characterized in that: A pressure reducing hole (9) is formed at the rear end of each of the nozzles (4).

4. The throttle device capable of achieving multi-stage pressure reduction according to claim 1, wherein: A fixing ring (6) is sleeved on the right end of the body (1).

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