Pressure stabilizing valve monitoring equipment

Abstract

The utility model discloses a pressure stabilizing valve monitoring device, which is used for monitoring a pressure stabilizing valve and comprises an input pressure regulating valve, a high-pressure branch, a low-pressure branch, a placing module for placing the pressure stabilizing valve to be tested, a large-flow branch and a small-flow branch, the high-pressure branch comprises a high-pressure switch valve, and the low-pressure branch comprises a low-pressure switch valve. And the input end of the high-pressure switch valve is connected with the output end of the input pressure regulating valve through a pipeline. According to the pressure stabilizing valve monitoring equipment disclosed by the utility model, through linkage of the input pressure regulating valve, the high-pressure branch, the low-pressure branch, the placing module for placing the pressure stabilizing valve to be tested, the large-flow branch and the small-flow branch, the pressure stabilizing valve to be tested is monitored in various modes, and the pressure stabilizing function of the pressure stabilizing valve to be tested is ensured to be qualified; the device has the advantages of high practicability, high safety, stable structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure-stabilizing valve monitoring, and in particular relates to a pressure-stabilizing valve monitoring device. Background Art

[0002] A gas pressure regulating valve is a device designed to stabilize the pressure of gas (such as natural gas or liquefied petroleum gas) entering a pipeline or appliance. Its main function is to ensure that the pressure of the output gas remains within a safe range, preventing safety issues caused by excessively high or low pressure.

[0003] There is currently a lack of monitoring equipment for pressure-stabilizing valves, which makes it impossible to ensure that the pressure-stabilizing valves used in the end are functionally qualified, and poses certain safety risks. Therefore, they need to be monitored before leaving the factory. Utility Model Content

[0004] The main purpose of the utility model is to provide a pressure-stabilizing valve monitoring device, which is linked by an input pressure regulating valve, a high-pressure branch, a low-pressure branch, a placement module for placing the pressure-stabilizing valve to be tested, a large-flow branch and a small-flow branch, so as to monitor the pressure-stabilizing valve to be tested in various modes to ensure that its pressure-stabilizing function is qualified. The utility model has the advantages of high practicality, high safety and stable structure.

[0005] To achieve the above objectives, the present invention provides a pressure regulating valve monitoring device for monitoring a pressure regulating valve, comprising an input pressure regulating valve, a high-pressure branch, a low-pressure branch, a placement module for placing the pressure regulating valve to be tested, a large flow branch, and a small flow branch, wherein:

[0006] The high-pressure branch includes a high-pressure switch valve, and the input end of the high-pressure switch valve is connected to the output end of the input pressure regulating valve through a pipeline;

[0007] The low-pressure branch includes a low-pressure switch valve and a low-pressure pressure regulating valve, and the input end of the low-pressure switch valve is connected to the output end of the input pressure regulating valve through the low-pressure pressure regulating valve and (another) pipeline;

[0008] The output end of the high-pressure switch valve and the output end of the low-pressure switch valve are both connected to the input end of the pressure-stabilizing valve to be tested through a first common pipeline, and the first common pipeline is installed with a first pressure transmitter and a flow meter;

[0009] The large flow branch includes a large flow regulating valve, the input end of the large flow regulating valve is connected to the output end of the measured pressure stabilizing valve;

[0010] The small flow branch includes a small flow regulating valve, the input end of the small flow regulating valve is connected to the output end of the measured pressure stabilizing valve;

[0011] A second pressure transmitter is installed at the output end of the pressure-stabilizing valve to be measured.

[0012] As a further preferred technical solution of the above technical solution, the placement module includes a first vertical board, a second vertical board, a first sliding bar, a second sliding bar, a third sliding bar, a fourth sliding bar, a first sliding plate and a second sliding plate, wherein:

[0013] The first sliding bar, the second sliding bar, the third sliding bar and the fourth sliding bar are all fixedly installed between the first vertical plate and the second vertical plate;

[0014] The first slide plate and the second slide plate are both installed between the first slide bar, the second slide bar, the third slide bar and the fourth slide bar, the first slide plate is close to the first pressure transmitter and the second slide plate is close to the second pressure transmitter.

[0015] As a further preferred technical solution of the above technical solution, the second slide is equipped with a first cylinder and a second cylinder, and the driving end of the first cylinder and the driving end of the second cylinder are respectively connected to the first slide.

[0016] As a further preferred technical solution of the above technical solution, one end of the pressure-stabilizing valve to be tested is installed on a side of the first slide away from the second slide.

[0017] As a further preferred technical solution of the above technical solution, pads are provided at the bottoms of the first vertical plate and the second vertical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a structural diagram of the placement module of the present utility model.

[0020] The accompanying drawings include: 10, input pressure regulating valve; 20, high-pressure branch; 21, high-pressure switching valve; 30, low-pressure branch; 31, low-pressure switching valve; 32, low-pressure pressure regulating valve; 40, placement module; 41, first vertical plate; 42, second vertical plate; 43, first slide bar; 44, second slide bar; 45, third slide bar; 46, fourth slide bar; 47, first slide bar; 48, second slide bar; 481, first cylinder; 482, second cylinder; 50, large flow branch; 51, large flow regulating valve; 60, small flow branch; 61, small flow regulating valve; 70, first common pipeline; 71, first pressure transmitter; 72, flow meter; 80, pressure regulating valve; 81, second pressure transmitter. DETAILED DESCRIPTION

[0021] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0022] The utility model discloses a pressure-stabilizing valve monitoring device. The specific embodiments of the utility model will be further described below in conjunction with preferred embodiments.

[0023] In the embodiments of the present invention, those skilled in the art will note that the pressure stabilizing valve and the like involved in the present invention may be regarded as prior art.

[0024] Preferred embodiment.

[0025] like Figure 1-2 As shown, the utility model discloses a pressure regulating valve monitoring device for monitoring a pressure regulating valve 80, comprising an input pressure regulating valve 10, a high-pressure branch 20, a low-pressure branch 30, a placement module 40 for placing the pressure regulating valve to be tested, a large flow branch 50, and a small flow branch 60, wherein:

[0026] The high-pressure branch 20 includes a high-pressure switch valve 21, and the input end of the high-pressure switch valve 21 is connected to the output end of the input pressure regulating valve 10 through a pipeline;

[0027] The low-pressure branch 30 includes a low-pressure switch valve 31 and a low-pressure regulating valve 32 (reducing the air pressure from the input regulating valve). The input end of the low-pressure switch valve 31 is connected to the output end of the input regulating valve 10 through the low-pressure regulating valve 32 and (another) pipeline.

[0028] The output end of the high-pressure switch valve 21 and the output end of the low-pressure switch valve 31 are both connected to the input end of the pressure-stabilizing valve 80 to be tested via a first common pipeline 70 , and the first common pipeline 70 is installed with a first pressure transmitter 71 and a flow meter 72 ;

[0029] The large flow branch 50 includes a large flow regulating valve 51, and the input end of the large flow regulating valve 51 is connected to the output end of the measured pressure regulating valve 80;

[0030] The small flow branch 60 includes a small flow regulating valve 61, and the input end of the small flow regulating valve 61 is connected to the output end of the measured pressure regulating valve 80;

[0031] A second pressure transmitter 81 is installed at the output end of the pressure-stabilizing valve 80 to be tested.

[0032] Specifically, the placement module 40 includes a first vertical plate 41, a second vertical plate 42, a first sliding rod 43, a second sliding rod 44, a third sliding rod 45, a fourth sliding rod 46, a first sliding plate 47, and a second sliding plate 48, wherein:

[0033] The first sliding rod 43, the second sliding rod 44, the third sliding rod 45 and the fourth sliding rod 46 are all fixedly installed between the first vertical plate 41 and the second vertical plate 42;

[0034] The first slide 47 and the second slide 48 are both installed between the first slide bar 43, the second slide bar 44, the third slide bar 45 and the fourth slide bar 46, the first slide 47 is close to the first pressure transmitter 71 and the second slide 48 is close to the second pressure transmitter 81.

[0035] More specifically, the second slide plate 48 is equipped with a first cylinder 481 and a second cylinder 482 , and a driving end of the first cylinder 481 and a driving end of the second cylinder 482 are respectively connected to the first slide plate 47 .

[0036] Furthermore, one end of the tested pressure-stabilizing valve 80 is installed on a side of the first slide 47 away from the second slide 48 .

[0037] Furthermore, pads are provided at the bottoms of the first vertical plate 41 and the second vertical plate 42 .

[0038] The principle of this utility model is:

[0039] Securely install the solenoid valve under test on the placement module. First, install one end of the pressure regulating valve on the first slide. Then start the first / second cylinder to drive the first slide toward the first pressure transmitter until the first common pipeline passes through the first riser and is connected to the input end of the pressure regulating valve. Then, connect the pipeline of the output end of the pressure regulating valve. Pressure regulating valves of different sizes are applicable.

[0040] For high-pressure and high-flow mode, open the high-pressure switch valve, close the low-pressure switch valve, open the high-flow regulating valve, and close the low-flow regulating valve. The airflow enters from the input pressure regulating valve, passes through the high-pressure branch and the first common pipeline to the pressure regulating valve, and finally exits from the output end of the high-flow regulating valve. Check whether the values of the first pressure transmitter and the second pressure transmitter are close. If they are close, it is determined that the pressure stabilization function is qualified.

[0041] For high-pressure and low-flow mode, open the high-pressure switch valve, close the low-pressure switch valve, open the small-flow regulating valve, and close the large-flow regulating valve. The airflow enters from the input pressure regulating valve, passes through the high-pressure branch and the first common pipeline to the pressure regulating valve, and finally exits from the output end of the small-flow regulating valve. Check whether the values of the first pressure transmitter and the second pressure transmitter are close. If they are close, it is determined that the pressure stabilization function is qualified.

[0042] For the low-pressure, high-flow mode, open the low-pressure switch valve, close the high-pressure switch valve, open the high-flow regulating valve, and close the small-flow regulating valve. The airflow enters from the input pressure regulating valve, passes through the low-pressure branch and the first common pipeline to the pressure regulating valve, and finally exits from the output end of the high-flow regulating valve. Check whether the values of the first pressure transmitter and the second pressure transmitter are close. If they are close, it is determined that the pressure stabilization function is qualified.

[0043] For the low-pressure and low-flow mode, open the low-pressure switch valve, close the high-pressure switch valve, open the small-flow regulating valve, and close the large-flow regulating valve. The airflow comes in from the input pressure regulating valve, passes through the low-pressure branch and the first common pipeline to connect to the pressure regulating valve, and finally goes out from the output end of the small-flow regulating valve. Check whether the values of the first pressure transmitter and the second pressure transmitter are close. If they are close, it is judged that the pressure stabilization function is qualified.

[0044] To summarize, a pressure regulating valve is a device that maintains a constant and stable output air pressure regardless of whether it regulates the airflow at its input or output. Therefore, the air pressure at its input is regulated by high and low pressure switch valves, and the air pressure at its output is regulated by large and small flow regulating valves, and its function is monitored in each mode to ensure that it is qualified.

[0045] It is worth mentioning that the technical features such as the pressure-stabilizing valve involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected by conventional options in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0046] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A pressure stabilizing valve monitoring device for monitoring a pressure stabilizing valve, characterized in that: It includes an input pressure regulating valve, a high-pressure branch, a low-pressure branch, a placement module for placing the pressure regulating valve to be tested, a large flow branch, and a small flow branch, wherein: The high-pressure branch includes a high-pressure switch valve, and the input end of the high-pressure switch valve is connected to the output end of the input pressure regulating valve through a pipeline; The low-pressure branch includes a low-pressure switch valve and a low-pressure pressure regulating valve, and the input end of the low-pressure switch valve is connected to the output end of the input pressure regulating valve through the low-pressure pressure regulating valve and a pipeline; The output end of the high-pressure switch valve and the output end of the low-pressure switch valve are both connected to the input end of the pressure-stabilizing valve to be tested through a first common pipeline, and the first common pipeline is installed with a first pressure transmitter and a flow meter; The large flow branch includes a large flow regulating valve, the input end of the large flow regulating valve is connected to the output end of the measured pressure stabilizing valve; The small flow branch includes a small flow regulating valve, the input end of the small flow regulating valve is connected to the output end of the measured pressure stabilizing valve; A second pressure transmitter is installed at the output end of the pressure-stabilizing valve to be measured.

2. A pressure stabilizing valve monitoring device according to claim 1, characterized in that: The placement module includes a first vertical board, a second vertical board, a first sliding bar, a second sliding bar, a third sliding bar, a fourth sliding bar, a first sliding plate, and a second sliding plate, wherein: The first sliding bar, the second sliding bar, the third sliding bar and the fourth sliding bar are all fixedly installed between the first vertical plate and the second vertical plate; The first slide plate and the second slide plate are both installed between the first slide bar, the second slide bar, the third slide bar and the fourth slide bar, the first slide plate is close to the first pressure transmitter and the second slide plate is close to the second pressure transmitter.

3. The pressure regulating valve monitoring device according to claim 2, characterized in that: The second slide plate is equipped with a first cylinder and a second cylinder, and a driving end of the first cylinder and a driving end of the second cylinder are respectively connected to the first slide plate.

4. The pressure-stabilizing valve monitoring device according to claim 3, characterized in that: One end of the tested pressure-stabilizing valve is installed on a side of the first slide away from the second slide.

5. The pressure-stabilizing valve monitoring device according to claim 4, characterized in that: Pads are provided at the bottoms of the first vertical plate and the second vertical plate.

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