Fuel gas pressure regulation testing device

Abstract

The utility model discloses a fuel gas pressure regulation testing device which comprises a bottom plate, a clamping seat and a driving mechanism, the clamping seat is arranged on the bottom plate, and the clamping seat is movably connected with the bottom plate. Sliding blocks are arranged on the two sides of the clamping base and slidably connected with the bottom plate, and driving mechanisms are arranged at the bottoms of the sliding blocks. The driving mechanism drives the sliding block to be assembled with the pressure regulating valve from the two sides of the clamping base. The sliding block comprises a plug pipe, a through pipe and a moving plate, the plug pipe is arranged on the moving plate, the through pipe is arranged on the plug pipe, and a plug head is arranged at the end, close to the clamping base, of the plug pipe. The sliding blocks comprise the first sliding block and the second sliding block, a valve is arranged on a through pipe on the first sliding block, a barometer is arranged on a plug pipe of the second sliding block, an air pump is arranged on the through pipe, and a one-way valve is arranged between the air pump and the through pipe. The pressure regulating valve does not need to be heated or immersed in water in the using process, operation is easy and fast, and the testing effect is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas equipment detection, in particular to a gas pressure regulating test device. Background Art

[0002] Town gas is transported in closed pipelines at a certain pressure. The higher the pressure, the faster the gas flow rate and the larger the absolute volume after release. National standards divide gas pipelines into 7 levels according to different pressures. Pipelines of different pressure levels have different corresponding safety requirements. Gas pipelines of various pressure levels should be connected through pressure regulating devices.

[0003] The gas pressure regulating valve is a device that automatically changes the gas flow through the regulating valve to keep the outlet gas at a specified pressure. The biggest function of the gas pressure regulator is to maintain a stable gas pressure when the gas is in use, thereby ensuring that the gas appliance has a stable fuel-air ratio. In order to prevent gas leakage during use, the gas pressure regulator needs to be tested for air tightness before it is put into use. Existing technologies generally test the sealing of the pressure regulating valve by water immersion or heating. The sealing index of the pressure regulating valve is determined by observing whether bubbles emerge from the pressure regulating valve in water, or the change in the internal pressure of the pressure regulating valve after heating. The testing process is complicated and can easily affect the quality of the product itself and the efficiency of work. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a gas pressure regulating test device.

[0005] The technical solution of the utility model is as follows: a gas pressure regulating test device includes a base plate, a holder and a driving mechanism. The base plate is provided with a holder, and the holder is movably connected with the base plate. Slide blocks are provided on both sides of the holder, and the slide blocks are slidably connected with the base plate, and a driving mechanism is provided at the bottom of the slide block. The slide block includes a plug tube, a through tube and a movable plate, and a plug tube is provided on the movable plate, and a through tube is provided on the plug tube, and a plug head is provided at one end of the plug tube close to the holder. The slide block includes a first slide block and a second slide block, and the through tube on the first slide block is provided with a valve, and the plug tube of the second slide block is provided with a pressure gauge, and the through tube of the second slide block is provided with an air pump, and a one-way valve is provided between the air pump and the through tube.

[0006] Furthermore, a sliding groove matching the sliding block is provided on the bottom plate, and the sliding block moves along the sliding groove.

[0007] Furthermore, the driving mechanism includes a motor and a bidirectional lead screw, one end of the bidirectional lead screw is connected to the output end of the motor, and the other end passes through a slider and is rotatably connected to the base plate, and the slider is threadedly connected to the bidirectional lead screw.

[0008] Furthermore, the plug is sleeved on the plug tube, one end of the plug close to the seat is conical, and the other end of the plug is fitted with a limiting ring on the plug tube.

[0009] Furthermore, two ends of the holder close to the slider are provided with V-shaped grooves.

[0010] Furthermore, the bottom plate is provided with a plurality of limit plates matching the clamping seat, the clamping seat is provided with a plurality of symmetrically distributed protrusions, the protrusions are provided with threaded top screws, and the bottom plate is provided with round holes matching the top screws.

[0011] Furthermore, a side of the movable plate away from the plug tube is provided with reinforcing ribs.

[0012] Compared with the prior art, the advantages of the utility model are: the pressure regulating valve is placed on the base, the driving mechanism drives the first slider and the second slider to move toward the two end pipe openings of the pressure regulating valve, the plug fills the gap between the pressure regulating valve and the plug tube, and improves the sealing of the assembly of the plug tube and the pressure regulating valve; the air pump draws the gas in the pressure regulating valve out, and the one-way valve allows the gas to flow out of the pressure regulating valve in one direction. When the air pump stops working, if the pressure gauge displays a negative value, it means that the pressure regulating valve has good sealing, there is no need to heat the pressure regulating valve, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0016] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0017] Among them: 1. bottom plate; 2. holder; 11. slide groove; 12. first slider; 13. second slider; 14. plug; 15. plug tube; 16. limit plate; 17. motor; 18. reinforcing rib; 19. movable plate; 121. through pipe; 122. valve; 131. pressure gauge; 132. one-way valve; 133. air pump; 151. limit ring; 171. screw rod; 21. V-groove; 22. bump; 23. top screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0019] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0020] like Figures 1 to 3 As shown, a gas pressure regulating test device comprises a base plate 1, a holder 2 and a driving mechanism. The base plate 1 is provided with a holder 2, and the holder 2 is movably connected with the base plate 1. The holder 2 is provided with V-shaped grooves 21 at both ends close to the slider, and the V-shaped grooves 21 facilitate the preliminary positioning of pressure regulating valves of different models. Slide blocks are provided on both sides of the holder 2, and a slide groove 11 matching the slide block is provided on the base plate 1, and the slide block moves along the slide groove 11. A plurality of limit plates 16 matching the holder 2 are provided on the base plate 1, and a plurality of symmetrically distributed protrusions 22 are provided on the holder 2, and a threaded top screw 23 is provided on the protrusion 22, and a round hole matching the top screw 23 is provided on the base plate 1. The height of the slot can be changed by adjusting the length of the top screw 23 screwed into the protrusion 22, so that after the slot is assembled with pressure regulating valves of different models, the height of the pipe openings at both ends of the pressure regulating valve is consistent with the slider, which facilitates the assembly of the slider and the pressure regulating valve. A driving mechanism is provided at the bottom of the slider. The driving mechanism includes a motor 17 and a bidirectional screw 171, one end of the bidirectional screw 171 is connected to the output end of the motor 17, and the other end passes through the slider and is rotatably connected to the bottom plate 1, and the slider is threadedly connected to the bidirectional screw 171. The motor 17 drives the bidirectional screw 171 to rotate, and the bidirectional screw 171 drives the slider to move along the slide 11.

[0021] The slider includes a plug tube 15, a through tube 121 and a moving plate 19. The moving plate 19 is provided with a plug tube 15, and a through tube 121 is provided on the plug tube 15. A plug head 14 is provided at one end of the plug tube 15 close to the base 2. The slider includes a first slider 12 and a second slider 13. The through tube 121 on the first slider 12 is provided with a valve 122. A pressure gauge 131 is provided on the plug tube 15 of the second slider 13. An air pump 133 is provided on the through tube 121 of the second slider 13. A one-way valve 132 is provided between the air pump 133 and the through tube 121. The plug head 14 is sleeved on the plug tube 15. One end of the plug head 14 close to the base 2 is conical, and the other end of the plug head 14 fits with a limit ring 151 on the plug tube 15. The conical plug head 14 is convenient for matching with the pipe ports of pressure regulators of various sizes. The air pump 133 extracts the gas in the pressure regulating valve, and the one-way valve 132 allows the air flow to flow out of the pressure regulating valve in one direction. When the air pump 133 stops, if the pressure gauge 131 displays a negative value, it means that the sealing of the pressure regulating valve is good. After the test is completed, the valve 122 is opened to allow the air flow to flow back into the pressure regulating valve, and the air pressure in the pressure regulating valve returns to normal. The motor 17 drives the slider to separate from the pressure regulating valve, and the pressure regulating valve can be removed. The side of the movable plate 19 away from the plug tube 15 is provided with a reinforcing rib 18, which can enhance the anti-deformation ability of the movable plate 19.

[0022] The working principle of the specific implementation of the utility model is as follows: the pressure regulating valve is assembled on the base 2, the pipe openings at both ends of the pressure regulating valve are placed in the V-shaped groove 21, the motor 17 drives the slider to move toward the base 2, and the plug tube 15 is sealed and assembled with the pressure regulating valve through the plug head 14. The air pump 133 extracts the gas in the pressure regulating valve, and the air flow flows unidirectionally from the inside of the pressure regulating valve to the air pump 133. When the air pump 133 is stopped, if the air pressure shows a negative value, it means that the sealing performance of the pressure regulating valve is good, otherwise the sealing quality does not meet the standard.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A gas pressure regulating test device, characterized in that: The invention comprises a base plate (1), a holder (2) and a driving mechanism, wherein the base plate (1) is provided with the holder (2), and the holder (2) is movably connected to the base plate (1); sliders are provided on both sides of the holder (2), and the sliders are slidably connected to the base plate (1); the driving mechanism is provided at the bottom of the sliders; the sliders comprise a plug tube (15), a through tube (121) and a movable plate (19); the plug tube (15) is provided on the movable plate (19), and the through tube (121) is provided on the plug tube (15); A plug head (14) is provided at one end of the plug tube (15) close to the holder (2); the slider comprises a first slider (12) and a second slider (13); the through tube (121) on the first slider (12) is provided with a valve (122); the plug tube (15) of the second slider (13) is provided with a pressure gauge (131); the through tube (121) of the second slider (13) is provided with an air pump (133); and a one-way valve (132) is provided between the air pump (133) and the through tube (121).

2. The gas pressure regulating test device according to claim 1, characterized in that: The bottom plate (1) is provided with a sliding groove (11) that matches the sliding block.

3. The gas pressure regulating test device according to claim 1, characterized in that: The driving mechanism comprises a motor (17) and a bidirectional screw rod (171); one end of the bidirectional screw rod (171) is connected to the output end of the motor (17); the other end passes through the slider and is rotatably connected to the base plate (1); the slider is threadedly connected to the bidirectional screw rod (171).

4. The gas pressure regulating test device according to claim 1, characterized in that: The plug (14) is sleeved on the plug tube (15); one end of the plug (14) close to the holder (2) is conical, and the other end of the plug (14) is in contact with a limiting ring (151) on the plug tube (15).

5. The gas pressure regulating test device according to claim 1, characterized in that: The holder (2) is provided with V-shaped grooves (21) at both ends close to the slider.

6. The gas pressure regulating test device according to claim 1, characterized in that: The bottom plate (1) is provided with a plurality of limit plates (16) that match the clamping seat (2); the clamping seat (2) is provided with a plurality of symmetrically distributed protrusions (22); the protrusions (22) are provided with threaded top screws (23); and the bottom plate (1) is provided with round holes that match the top screws (23).

7. The gas pressure regulating test device according to claim 1, characterized in that: A reinforcing rib (18) is provided on a side of the movable plate (19) away from the plug tube (15).

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