Liquid pressure test operation device with explosion-proof function

Abstract

The utility model relates to a liquid pressure test operating device with an explosion-proof function, which comprises an operating cabinet, a manual pressurization system, a multi-path shunt and a pressure detector, cabinet doors capable of being opened or closed are arranged in multiple directions of the side wall of the operating cabinet, the manual pressurization system and the multi-path shunt are arranged in the operating cabinet, the pressure detector is arranged outside the operating cabinet, and the pressure detector is arranged in the operating cabinet. An operation part of the manual pressurization system penetrates through an operation opening matched with the front side of the operation cabinet, a medium outlet of the manual pressurization system is connected with an inlet of the multi-way flow divider through a front-end output pipeline, and a plurality of outlets of the multi-way flow divider are connected with a pressure signal collecting pipeline, a pressure relief pipeline and a rear-end output pipeline respectively. The pressure signal acquisition pipeline is connected with a pressure detector, the pressure relief pipeline passes through or penetrates out of the side wall of the operation cabinet, a pressure relief control valve is arranged on the pressure relief pipeline, the operation part of the pressure relief control valve is exposed out of the operation cabinet, and the rear end output pipeline penetrates out of the rear side of the operation cabinet. The hand-operated pressure test device has the advantages of effectively avoiding accidental injury of personnel in the hand-operated pressure test process and being high in safety.

Description

Technical Field

[0001] This utility model relates to the field of aviation and aerospace product testing technology, and in particular to a liquid pressure testing operating device with explosion-proof function. Background Technology

[0002] Pressure testing is an essential method for inspecting components that require pressure (pneumatic or hydraulic) during the manufacturing process of aerospace products. However, during pressure testing of the tested product, the pressure value of the product and the pressurizing equipment rises from the initial zero point to tens of megapascals. Because some traditional manual pressurizing equipment exposes the booster pump and high-pressure pipelines to personnel, these pressure-bearing pipelines and joints can easily rupture and cause accidental injury to the testers if the pressure increases.

[0003] To address the issues of preventing accidental injury to personnel during manual pressure testing of components requiring pressure (pneumatic or hydraulic pressure) while simultaneously improving work efficiency, it is necessary to develop a liquid pressure testing operating device with explosion-proof functionality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a liquid pressure testing device with explosion-proof function, which effectively overcomes the defects of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An explosion-proof liquid pressure testing operating device includes an operating cabinet, a manual pressurization system, a multi-channel distributor, and a pressure detector. The operating cabinet has multiple doors on its side wall that can be opened or closed. The manual pressurization system and the multi-channel distributor are built into the operating cabinet, while the pressure detector is mounted outside the operating cabinet. The operating part of the manual pressurization system passes through a suitable operating port on the front side of the operating cabinet. The medium outlet of the manual pressurization system is connected to the inlet of the multi-channel distributor via a front-end output pipeline. Multiple outlets of the multi-channel distributor are respectively connected to a pressure signal acquisition pipeline, a pressure relief pipeline, and a rear-end output pipeline. The pressure signal acquisition pipeline is connected to the pressure detector. The pressure relief pipeline passes through the side wall of the operating cabinet or exits through it, and a pressure relief control valve is installed on the pressure relief pipeline. The operating part of the pressure relief control valve is exposed outside the operating cabinet. The rear-end output pipeline exits from the rear side of the operating cabinet.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the bottom of the aforementioned control cabinet is equipped with multiple casters.

[0009] Furthermore, the aforementioned wheels are omnidirectional wheels.

[0010] Furthermore, the aforementioned control cabinet is equipped with handrails.

[0011] Furthermore, the aforementioned pressure relief control valve is a high-pressure needle valve, and its knob handle constitutes the operating part of the aforementioned pressure relief control valve.

[0012] Furthermore, the aforementioned pressure detector is a pressure gauge.

[0013] Furthermore, the aforementioned manual booster system includes a manual booster pump and a water storage tank. The water storage tank is installed inside the aforementioned control cabinet. The medium inlet of the aforementioned manual booster pump is connected to the aforementioned water storage tank via a pipeline. The operating lever of the aforementioned manual booster pump constitutes the operating part of the aforementioned manual booster system.

[0014] Furthermore, a mounting bracket is vertically installed between the top and bottom walls of the aforementioned control cabinet, and the aforementioned manual booster pump, multi-way distributor, and pressure relief control valve are respectively mounted on the aforementioned mounting bracket.

[0015] Furthermore, the top of the aforementioned control cabinet is equipped with a safety protection structure that separates the front and rear spaces.

[0016] Furthermore, the aforementioned safety protection structure is an integrally formed protective box located on the rear side of the top of the control cabinet, with an openable or closed door on the front side of the protective box.

[0017] The advantages of this utility model are: reasonable structural design, which can effectively avoid accidental injury to personnel during manual pressure testing; modular design, easy operation, easy maintenance, and high safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the explosion-proof liquid pressure testing device of this utility model.

[0019] Figure 2 This is a schematic diagram of the control cabinet of the explosion-proof liquid pressure testing device of this utility model after the cabinet door is opened.

[0020] Figure 3 This is a schematic diagram of the connection between the pipeline and the pressurization system in the explosion-proof liquid pressure testing operating device of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Control cabinet; 2. Mounting frame; 3. Manual booster system; 4. Diverter; 5. Pressure detector; 6. Pressure relief control valve; 11. Cabinet door; 12. Wheels; 13. Safety protection structure; 31. Front-end output pipeline; 32. Pressure signal acquisition pipeline; 33. Pressure relief pipeline; 34. Rear-end output pipeline; 311. Manual booster pump; 312. Water storage tank. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example

[0025] like Figure 1 , 2 As shown in Figure 3, the explosion-proof liquid pressure testing operating device of this embodiment includes an operating cabinet 1, a manual pressurization system 3, a multi-channel distributor 4, and a pressure detector 5. The operating cabinet 1 has multiple doors 11 on its side walls that can be opened or closed. The manual pressurization system 3 and the multi-channel distributor 4 are built into the operating cabinet 1, while the pressure detector 5 is mounted outside the operating cabinet 1. The operating part of the manual pressurization system 3 passes through an operating port adapted to the front of the operating cabinet 1, and the medium outlet of the manual pressurization system 3 is... The front-end output pipeline 31 is connected to the inlet of the multi-way splitter 4. The multiple outlets of the multi-way splitter 4 are respectively connected to the pressure signal acquisition pipeline 32, the pressure relief pipeline 33 and the rear-end output pipeline 34. The pressure signal acquisition pipeline 32 is connected to the pressure detector 5. The pressure relief pipeline 33 passes through the side wall of the operating cabinet 1 or extends out. The pressure relief pipeline 33 is equipped with a pressure relief control valve 6. The operating part of the pressure relief control valve 6 is exposed outside the operating cabinet 1. The rear-end output pipeline 34 extends out from the rear side of the operating cabinet 1.

[0026] The control cabinet 1 in this embodiment is assembled by welding sheet metal parts. Its main parts consist of a frame (including columns, beams and other components) and cabinet doors 11 set on the four sides of the frame. All cabinet doors 11 adopt a hinged installation design, which makes it easy to inspect and maintain the pressurization system inside the cabinet.

[0027] The operation process of the explosion-proof liquid pressure testing device in this embodiment is as follows:

[0028] Connect the product to be tested to the rear output pipe 34 port on the rear side. Before pressurization, close the cabinet door 11. The operator operates the exposed operating part of the manual pressurization system 3 on the front side of the control cabinet 1. The medium flows through the front output pipe 31, the multi-way distributor 4, the rear output pipe 34, and the product to be tested. During the pressurization process, the pressure detector 5 monitors the pressure data transmitted through the pressure signal acquisition pipe 32 in real time. The pressure is stopped when the set value is reached, and then the operation of the manual pressurization system 3 is stopped. The pressure is maintained for a period of time. If the product under test leaks, the real-time pressure data measured by the pressure detector 5 will decrease, and vice versa. This determines whether the product under test is qualified. After the test is completed, the pressure relief control valve 6 is opened, and the fluid is discharged through the pressure relief control valve 6 and the pressure relief pipe 33 until the pressure of the entire circuit is 0. At this time, the product under test can be removed. Because the product is connected to the rear of the device during the testing process, and the pipelines and core components are all located inside the control cabinet 1, the operator only operates the manual pressurization system 3 from the front of the device. Therefore, even if an accident such as a pipeline or internal component bursts, the operator can be effectively isolated and protected. At the same time, during the depressurization process, the depressurization control valve 6 is operated only from the outside of the control cabinet 1, resulting in high overall safety and a good explosion-proof effect.

[0029] In this embodiment, the bottom of the control cabinet 1 is provided with multiple wheels 12, which facilitates the movement of the entire device along the ground.

[0030] In this embodiment, the aforementioned traveling wheel 12 is a swivel wheel, which allows for more flexible movement. Specifically, swivel wheels with brakes can be used, and the specific model can be flexibly adapted according to requirements.

[0031] In this embodiment, the control cabinet 1 is equipped with a handrail. A pushing force can be applied through the handrail to propel the entire device forward.

[0032] In this embodiment, the pressure relief control valve 6 is a commercially available high-pressure needle valve of a compatible model, and its knob handle constitutes the operating part of the pressure relief control valve 6. The knob handle can be rotated from outside the control cabinet 1 to open or close the pressure relief control valve 6.

[0033] In this embodiment, the pressure detector 5 uses a commercially available pressure gauge of a compatible model. When the pressure gauge reading reaches a predetermined parameter, the manual pressurization system 3 is stopped, thus maintaining the liquid pressure inside the pressurization system and the product under test.

[0034] In a preferred embodiment, the manual booster system 3 includes a manual booster pump 311 and a water storage tank 312. The water storage tank 312 is installed in the control cabinet 1. The medium inlet of the manual booster pump 311 is connected to the water storage tank 312 through a pipeline. The operating lever of the manual booster pump 311 constitutes the operating part of the manual booster system 3.

[0035] In the above implementation scheme, "pressurization" can be achieved by repeatedly pressing the control lever of the manual booster pump 311 up and down along the control port on the front side of the control cabinet 1, so that the medium in the water storage tank 312 can be transported to the subsequent pipeline through the front output pipeline 31.

[0036] Specifically, the manual booster pump 311 in this embodiment uses a commercially available compatible manual pump, including a pump body. A piston is located inside the pump body. A medium inlet is located at the lower end of the pump body, and a one-way valve is installed at the medium inlet. A medium outlet is located on the lower side of the pump body, and a one-way valve is also installed inside the medium outlet. A piston rod is connected to the upper end of the piston, and the upper end of the piston rod extends out of the upper end of the pump body. A control lever is also hinged to the upper end of the pump body. A spring connects the upper end of the piston rod to the upper end of the pump body. The upper end of the piston rod is located at the lower end of the control lever. When the control lever is pressed down, the piston rod and piston are pressed down, and the spring is compressed, causing the medium inside the pump body to be output through the medium outlet. When the control lever is lifted down, the spring drives the piston rod to move upward back to its original position, drawing in the medium through the medium inlet.

[0037] In this embodiment, the manual booster system 3 outputs an effective safe pressure value of 0-45 MPa. The control cabinet 1 is made of high-strength, high-quality carbon structural steel sheet metal, ensuring high safety. In the event of an accidental rupture in any part of the manual booster system 3, it can effectively protect the personal safety of the operator.

[0038] In this embodiment, a mounting bracket 2 is vertically installed between the top and bottom walls of the control cabinet 1. The manual booster pump 311, the multi-way distributor 4, and the pressure relief control valve 6 are respectively mounted on the mounting bracket 2. The modular assembly design results in a simple structure and high safety.

[0039] As a preferred embodiment, the top of the above-mentioned control cabinet 1 is provided with a safety protection structure 13 that separates the front and rear spaces.

[0040] In the above implementation scheme, since the height of the control cabinet 1 needs to take into account the on-site usage factors during the design, it is impossible to make it too high. Therefore, by setting a safety protection structure 13 at the top, it can effectively match the height of the operator, achieve complete front and rear isolation, and greatly improve the safety performance.

[0041] In this embodiment, the aforementioned safety protection structure 13 is an integrally formed protective box located on the top rear side of the control cabinet 1. The front side of the protective box has an openable or closable door. Tools can be placed inside the protective box to improve storage performance.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A liquid pressure testing operating device with explosion-proof function, characterized in that: The system includes an operating cabinet (1), a manual pressurization system (3), a multi-channel distributor (4), and a pressure detector (5). The operating cabinet (1) has multiple doors (11) on its side walls that can be opened or closed. The manual pressurization system (3) and the multi-channel distributor (4) are built into the operating cabinet (1). The pressure detector (5) is installed outside the operating cabinet (1). The operating part of the manual pressurization system (3) passes through the operating port adapted on the front side of the operating cabinet (1). The medium outlet of the manual pressurization system (3) is connected to the multi-channel distributor (4) through a front-end output pipe (31). The inlet of the shunt (4) and the multiple outlets of the shunt (4) are respectively connected to the pressure signal acquisition pipeline (32), the pressure relief pipeline (33) and the rear output pipeline (34). The pressure signal acquisition pipeline (32) is connected to the pressure detector (5). The pressure relief pipeline (33) passes through the side wall of the operating cabinet (1) or exits through it. The pressure relief pipeline (33) is equipped with a pressure relief control valve (6). The operating part of the pressure relief control valve (6) is exposed outside the operating cabinet (1). The rear output pipeline (34) exits from the rear side of the operating cabinet (1).

2. The liquid pressure testing operating device with explosion-proof function according to claim 1, characterized in that: The bottom of the control cabinet (1) is equipped with multiple wheels (12).

3. The liquid pressure testing operating device with explosion-proof function according to claim 2, characterized in that: The traveling wheel (12) is a swivel wheel.

4. The liquid pressure testing operating device with explosion-proof function according to claim 2, characterized in that: The control cabinet (1) is equipped with handrails.

5. The liquid pressure testing operating device with explosion-proof function according to claim 1, characterized in that: The pressure relief control valve (6) is a high-pressure needle valve, and its knob handle constitutes the operating part of the pressure relief control valve (6).

6. The liquid pressure testing operating device with explosion-proof function according to claim 1, characterized in that: The pressure detector (5) is a pressure gauge.

7. A liquid pressure testing operating device with explosion-proof function according to any one of claims 1 to 6, characterized in that: The manual booster system (3) includes a manual booster pump (311) and a water storage tank (312). The water storage tank (312) is installed in the control cabinet (1). The medium inlet of the manual booster pump (311) is connected to the water storage tank (312) through a pipeline. The operating lever of the manual booster pump (311) constitutes the operating part of the manual booster system (3).

8. A liquid pressure testing operating device with explosion-proof function according to claim 7, characterized in that: A fixed frame (2) is vertically installed between the top and bottom walls of the control cabinet (1). The manual booster pump (311), the multi-way distributor (4), and the pressure relief control valve (6) are respectively mounted on the fixed frame (2).

9. A liquid pressure testing operating device with explosion-proof function according to any one of claims 1 to 6, characterized in that: The top of the control cabinet (1) is equipped with a safety protection structure (13) that separates the front and rear spaces.

10. A liquid pressure testing operating device with explosion-proof function according to claim 9, characterized in that: The safety protection structure (13) is an integrally formed protective box located on the rear side of the top of the operating cabinet (1), and the front side of the protective box is provided with a door that can be opened or closed.

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