Stainless steel air pipe pressure test device

Abstract

The utility model relates to the technical field of stainless steel air pipe pressure testing, in particular to a stainless steel air pipe pressure testing device which comprises a sealing plate, pressure testing pipes are symmetrically arranged in the middle of the sealing plate, butterfly valves are arranged on the pressure testing pipes, limiting plates are arranged on the outer wall of the sealing plate in a sleeved mode, annular baffles are arranged at the bottoms of the limiting plates, and a pressure gauge is arranged at the top of one pressure testing pipe. A plurality of fixers are inserted into the annular baffle plate; according to the pressure testing device for the stainless steel air pipe, the pressure testing pipes with the butterfly valves are arranged, the butterfly valves are manually controlled to be opened or closed, the pressure testing pipes are matched in a disconnected mode, a pressure gauge is installed on one of the pressure testing pipes, and then pressure testing matching of the interior of the stainless steel air pipe is achieved; the sealing plate can be conveniently inserted into a corresponding stainless steel air pipe opening, the sealing airtightness is improved under the cooperation of the sealing gasket, the fixing installation cooperation is carried out through the fixing bolt under the cooperation of the multiple fixers, and the sealing plate and the stainless steel air pipe are rapidly and conveniently inserted into each other.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel air duct pressure testing, in particular to a stainless steel air duct pressure testing device. Background Art

[0002] During the duct pressure test phase of the ventilation and air conditioning system installation project, stainless steel duct pressure testing is an essential but tedious task;

[0003] The utility model with the announcement number CN219573411U discloses a pressure test device for stainless steel pipes, which includes an operating table, a fixing structure for fixing the stainless steel pipe and a pressure test water pump are provided on the operating table, the water inlet of the pressure test water pump is connected to a water supply mechanism, the water outlet of the pressure test water pump is connected to a water injection pipe, the water injection pipe is connected to a first cannula, a first valve is provided on the first cannula, the first cannula is connected to one end of the stainless steel pipe through a connector, the water supply mechanism is further connected to a return water assembly, the return water assembly includes a return water pump and a return water pipe, one end of the return water pipe is connected to the water supply mechanism through the return water pump, the other end of the return water pipe is connected to a second cannula, a second valve is provided on the second cannula, and the second cannula is connected to the other end of the stainless steel pipe through a connector;

[0004] The above technical solution fixes the stainless steel pipe through a fixed structure, and then connects the first and second insert pipes to the two ends of the stainless steel pipe through connectors respectively, and then closes the second valve, opens the first valve and the pressure test water pump, and starts to inject water into the stainless steel pipe to perform a pressure test on the stainless steel pipe. After the pressure test is completed, the user closes the first valve and the pressure test water pump, and then opens the second valve and the return water pump to return the water to the water tank, thereby recycling the water after the pressure test and saving water resources; however, the traditional pressure test method has low work efficiency, high labor intensity, low accuracy, and is not convenient for quick loading and unloading and reuse. Utility Model Content

[0005] The purpose of the present invention is to provide a stainless steel air duct pressure testing device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A stainless steel air duct pressure test device includes a sealing plate, with pressure test tubes symmetrically arranged in the middle of the sealing plate, each of which is provided with a butterfly valve, a limit plate sleeved on the outer wall of the sealing plate, and an annular baffle at the bottom of each limit plate, a pressure gauge is provided on the top of one of the pressure test tubes, and several fixers are plugged into the annular baffle.

[0008] Preferably, the fixer is U-shaped, and a screw hole is provided on the top of each side arm of the fixer, and a fixing bolt is provided in the screw hole.

[0009] In the utility model, the sealing plate is plugged into and matched with the stainless steel air duct, the fixer is plugged into and matched with the annular baffle and the corresponding side wall of the stainless steel air duct, the fixing bolt is threadedly connected with the screw hole, and under the action of friction, the fixer fixes the position of the sealing plate and the stainless steel air duct.

[0010] Preferably, the limiting plate is annular, the width of the inner wall of the limiting plate is adapted to the width of the outer wall of the sealing plate, the inner wall of the limiting plate is tightly fitted to the outer wall of the sealing plate, and are fixed by welding.

[0011] In the present invention, the limiting plate and the sealing plate are fixed by welding, which increases the stability of the overall combined structure. At the same time, the junction between the limiting plate and the sealing plate is sealed and welded, which increases the sealing performance and reduces ventilation leakage that affects the pressure test.

[0012] Preferably, the inner side of the annular baffle is tightly fitted with the outer wall of the limiting plate and fixed by welding. A sealing gasket is provided at the bottom of the annular baffle. The sealing gasket is annular, and the upper surface of the sealing gasket is bonded and fixed to the lower surface of the annular baffle.

[0013] In the utility model, an annular baffle with a sealing gasket is provided to increase the sealing performance between the annular baffle and the external stainless steel air duct and reduce the impact of air leakage.

[0014] Preferably, the pressure test tube is fixed to the sealing plate by welding, and the butterfly valve is fixed to the pressure test tube by welding.

[0015] In the utility model, the butterfly valve is provided to help manually control the exhaust coordination inside the stainless steel air duct installed with the sealing plate.

[0016] Preferably, the pressure gauge is plugged into and fitted with the top of one of the pressure test tubes and is threadedly connected via a nut.

[0017] In the utility model, with the cooperation of the nut, the pressure gauge can be quickly installed and matched with the pressure test tube, and the nut can be disassembled to facilitate the removal and replacement of the pressure gauge.

[0018] Preferably, the length between the side arms of the fixer is greater than the total thickness of the annular baffle and the sealing gasket, and the inner diameter of the screw hole is adapted to the diameter of the fixing bolt.

[0019] In the present invention, the distance between the side walls of the fixer is large, which helps to quickly assemble and install stainless steel air ducts and sealing plates of different thicknesses, and with the cooperation of the fixing bolts, the assembly and installation can be quickly carried out.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model sets a pressure test tube with a butterfly valve, and the butterfly valve is manually controlled to open or close to realize the disconnection of the pressure test tube, and a pressure gauge is installed on one of the pressure test tubes, thereby realizing the pressure test inside the stainless steel air duct. The sealing plate is conveniently connected and installed with the corresponding stainless steel air duct opening in cooperation with the limit plate and the annular baffle, and the air tightness of the seal is increased in cooperation with the sealing gasket. In cooperation with multiple fixers, the sealing plate is fixed and installed by a fixing bolt. The connection and installation of the sealing plate and the stainless steel air duct are fast and convenient, which is conducive to rapid detection and cooperation.

[0022] 2. The utility model provides a detachable fixing bolt, which helps to disassemble and remove the fixer, thereby achieving rapid disassembly and facilitating reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the sealing plate, limit plate and pressure test tube structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the fixer of the present utility model.

[0026] The meaning of each number in the figure is:

[0027] 1. Sealing plate;

[0028] 2. Limit plate; 20. Annular baffle; 200. Sealing gasket;

[0029] 3. Test pressure tube; 30. Butterfly valve;

[0030] 4. Pressure gauge;

[0031] 5. Fixer; 50. Screw hole; 51. Fixing bolt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 3 , this embodiment provides a technical solution:

[0034] A stainless steel air duct pressure test device includes a sealing plate 1, a pressure test tube 3 is symmetrically provided in the middle of the sealing plate 1, a butterfly valve 30 is provided on each pressure test tube 3, a limit plate 2 is sleeved on the outer wall of the sealing plate 1, and an annular baffle 20 is provided at the bottom of the limit plate 2. The limit plate 2 is ring-shaped, and the width of the inner wall of the limit plate 2 is adapted to the width of the outer wall of the sealing plate 1. The inner wall of the limit plate 2 is tightly fitted with the outer wall of the sealing plate 1 and welded and fixed.

[0035] In the present invention, the limiting plate 2 and the sealing plate 1 are welded and fixed to increase the stability of the overall combined structure. At the same time, the limiting plate 2 and the sealing plate 1 are sealed and welded at their junction to increase the sealing performance and reduce ventilation leakage that affects the pressure test.

[0036] Furthermore, the inner side of the annular baffle 20 is tightly fitted with the outer wall of the limiting plate 2 and welded and fixed. A sealing gasket 200 is provided at the bottom of the annular baffle 20. The sealing gasket 200 is annular, and the upper surface of the sealing gasket 200 is bonded and fixed to the lower surface of the annular baffle 20.

[0037] In the present invention, an annular baffle 20 with a sealing gasket 200 is provided to increase the sealing performance between the annular baffle 20 and the external stainless steel air duct, thereby reducing the impact of air leakage.

[0038] Specifically, a pressure gauge 4 is provided on the top of one of the pressure test tubes 3 , the pressure test tube 3 is fixed to the sealing plate 1 by welding, and the butterfly valve 30 is fixed to the pressure test tube 3 by welding.

[0039] In the present invention, the butterfly valve 30 is provided to facilitate manual control of the exhaust coordination inside the stainless steel air duct on which the sealing plate 1 is installed.

[0040] It should be noted that the pressure gauge 4 is plugged into and matched with the top of one of the pressure test tubes 3 and is threadedly connected via a nut.

[0041] In the present invention, with the cooperation of the nut, the pressure gauge 4 can be quickly installed and matched with the pressure test tube 3, and the nut can be disassembled to facilitate the removal and replacement of the pressure gauge 4.

[0042] Secondly, a plurality of fixers 5 are plugged into the annular baffle 20 .

[0043] Furthermore, the fixer 5 is U-shaped, and a screw hole 50 is provided at the top of one side arm of each fixer 5 , and a fixing bolt 51 is provided in the screw hole 50 .

[0044] In the present invention, the sealing plate 1 is plugged into and matched with the stainless steel air duct, the fixer 5 is plugged into and matched with the annular baffle 20 and the corresponding side wall of the stainless steel air duct, the fixing bolt 51 is threadedly connected with the screw hole 50, and under the action of friction, the fixer 5 fixes the position of the sealing plate 1 and the stainless steel air duct.

[0045] Specifically, the length between the side arms of the fixer 5 is greater than the total thickness of the annular baffle 20 and the sealing gasket 200 , and the inner diameter of the screw hole 50 is adapted to the diameter of the fixing bolt 51 .

[0046] In the present invention, the distance between the side walls of the fixer 5 is large, which helps to quickly assemble and install the stainless steel air ducts and the sealing plate 1 of different thicknesses, and with the cooperation of the fixing bolts 51, the assembly and installation can be quickly carried out.

[0047] When using the stainless steel air duct pressure test device of this embodiment, the user first welds the annular baffle 20 with the sealing gasket 200 to the limit plate 2, then welds the limit plate 2 to the sealing plate 1, and welds the test pressure tube 3 with the butterfly valve 30 to the sealing plate 1. The corresponding pressure gauge 4 is plugged into one of the test pressure tubes 3 and fixed with a nut assembly;

[0048] When it is necessary to perform a pressure test on the stainless steel air duct, the processed sealing plate 1 is plugged into the corresponding air duct opening, the annular baffle 20 with the sealing gasket 200 is plugged into the inner wall of the air duct opening, and the sealing gasket 200 is tightly fitted with the side wall of the stainless steel air duct opening. The corresponding fixer 5 is manually plugged into the annular baffle 20, and the fixing bolt 51 is threadedly connected to the screw hole 50, and the end of the fixing bolt 51 is tightly fitted with the annular baffle 20. The two side arms of the fixer 5 clamp the stainless steel air duct and the annular baffle 20, and the installation is stably performed under the action of friction. The butterfly valve 30 on the pressure test tube 3 with the pressure gauge 4 is opened, and the pressure gauge 4 monitors the internal pressure of the air duct in real time. When disassembly is required, the fixing bolt 51 is taken out in turn, and the fixer 5 is taken out, and the Baina and sealing plate 1 are taken out for reuse.

Claims

1. A stainless steel air duct pressure test device, comprising a sealing plate (1), wherein pressure test tubes (3) are symmetrically arranged in the middle of the sealing plate (1), and each of the pressure test tubes (3) is provided with a butterfly valve (30), characterized in that: A limiting plate (2) is sleeved on the outer wall of the sealing plate (1), and an annular baffle (20) is provided at the bottom of each limiting plate (2). A pressure gauge (4) is provided on the top of one of the pressure test tubes (3), and a plurality of fixers (5) are plugged into the annular baffle (20).

2. The stainless steel air duct pressure test device according to claim 1, characterized in that: The fixer (5) is U-shaped, and a screw hole (50) is provided at the top of one side arm of each fixer (5), and a fixing bolt (51) is provided in each screw hole (50).

3. The stainless steel air duct pressure test device according to claim 1, characterized in that: The limiting plate (2) is annular, the width of the inner wall of the limiting plate (2) is adapted to the width of the outer wall of the sealing plate (1), the inner wall of the limiting plate (2) is tightly fitted to the outer wall of the sealing plate (1), and are fixed by welding.

4. The stainless steel air duct pressure test device according to claim 3, characterized in that: The inner side surface of the annular baffle (20) is tightly fitted with the outer wall surface of the limiting plate (2) and fixed by welding. A sealing gasket (200) is provided at the bottom of the annular baffle (20). The sealing gasket (200) is annular, and the upper surface of the sealing gasket (200) is bonded and fixed to the lower surface of the annular baffle (20).

5. The stainless steel air duct pressure test device according to claim 1, characterized in that: The pressure test tube (3) is fixed to the sealing plate (1) by welding, and the butterfly valve (30) is fixed to the pressure test tube (3) by welding.

6. The stainless steel air duct pressure test device according to claim 1, characterized in that: The pressure gauge (4) is plugged into and matched with the top of one of the pressure test tubes (3) and is threadedly connected via a nut.

7. The stainless steel air duct pressure test device according to claim 2, characterized in that: The length between the side arms of the fixer (5) is greater than the total thickness of the annular baffle (20) and the sealing gasket (200), and the inner diameter of the screw hole (50) is compatible with the diameter of the fixing bolt (51).

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