A hydrogen compressor packing seal test system

Abstract

The application relates to a hydrogen compressor packing seal test system, which comprises a base and a fixing table fixedly arranged on the base, a pushing assembly is arranged in the middle of the fixing table, a plurality of groups of bearing assemblies are arranged on the fixing table, a single group of bearing assemblies comprises a carrier for bearing a sealing packing piece, a hydrogen cylinder is arranged on the carrier, a pull rod is slidably arranged in the sealing packing piece, a test assembly is arranged on the carrier, the pushing assembly is used for extruding hydrogen in the hydrogen cylinder in the reciprocating sliding process of the pull rod, and the test assembly tests the sealing property of the sealing packing piece through hydrogen leakage, so that the packing seal piece can meet the installation requirements before installation, and leakage can be prevented.

Description

TECHNICAL FIELD

[0001] The application relates to the compressor technical field, in particular to a hydrogen compressor packing seal test system. BACKGROUND

[0002] The compressor is an important equipment, and the packing seal performance of the reciprocating compressor directly affects the working efficiency and reliability, the packing seal test device of the reciprocating compressor can timely and accurately detect the leakage of the packing seal through specific detection device design, and the packing of the compressor needs to know whether the leakage of the packing device meets the requirements of the field operation or the standard before being replaced, and the quantitative leakage detection of the packing of the reciprocating compressor before being installed can determine whether the leakage after being installed can meet the requirements of the production operation, thereby becoming a key basis for judging whether the packing of the compressor is qualified before being installed.

[0003] A compressor piston rod packing seal device is disclosed in Chinese Patent No. CN116558234B, which comprises a plurality of packing boxes and packing. The plurality of packing boxes are overlapped and distributed. A packing accommodating groove is arranged between the two adjacent packing boxes. The packing is accommodated in the packing accommodating groove. The two sides of the packing abut against the two groove walls opposite to each other. The packing of the compressor piston rod packing seal device of the utility model abuts against the two groove walls opposite to each other at two ends. The piston rod is arranged in the packing. This makes the packing seal the outer surface of the piston rod, the two groove walls of the packing accommodating groove seal the packing, and the piston rod is well sealed, avoiding leakage.

[0004] However, the present inventor found that in the actual application process, the existing test device has the problems of low test efficiency and inaccurate test effect when testing whether the packing seal leaks, and the leakage of the packing is found after the packing is installed on the compressor. SUMMARY

[0005] The application aims at the deficiencies of the prior art, and provides a hydrogen compressor packing seal test system, which drives the first piston and the second piston to reciprocate in the hydrogen cylinder through the push assembly, pressurizes the hydrogen, and when the hydrogen leaks, the hydrogen enters the water tank through the test assembly, so that the sealing performance of the packing seal is detected, the test efficiency is high, the packing seal can meet the requirements of installation before being installed, and the leakage is prevented.

[0006] The technical solution of the application is as follows:

[0007] A kind of hydrogen compressor packing seal test system, including base and fixedly arranged on the base fixed platform, the middle part of the fixed platform is provided with push assembly, a plurality of groups of bearing assembly are provided on the fixed platform, single group bearing assembly includes the carrier for bearing sealing packing piece, the carrier is provided with hydrogen cylinder, the pull rod is slidably arranged in the sealing packing piece, test assembly is provided on the carrier, the push assembly is used to drive the hydrogen cylinder in the process of reciprocating sliding of pull rod and extrude hydrogen, the test assembly tests the sealing property of sealing packing piece by hydrogen leakage.

[0008] As a kind of preferred, the push assembly includes rotating shaft rotatably arranged on the base, guide rail fixedly arranged on rotating shaft, guide groove opened in guide rail, guide rod fixedly arranged on pull rod, the guide rod cooperates with guide groove.

[0009] As a kind of preferred, single group bearing assembly further includes connecting cylinder fixedly arranged between carrier and hydrogen cylinder, and the pull rod and connecting cylinder are slidably matched.

[0010] As a kind of preferred, single group test assembly includes bellow fixedly arranged between carrier and pull rod, hose fixedly arranged on bellow, water tank fixedly arranged on fixed platform, first piston slidably arranged in hydrogen cylinder, telescopic rod fixedly arranged on first piston, second piston slidably arranged in hydrogen cylinder, air pipe fixedly arranged in the middle of hydrogen cylinder, air leakage plate fixedly arranged on first piston, baffle fixedly arranged between air leakage plate and hydrogen cylinder, connecting pipe fixedly arranged on both sides of hydrogen cylinder, the hose is communicated with water tank, the first piston is fixedly connected with pull rod, the second piston is fixedly connected with telescopic rod, the baffle and air leakage plate are matched with connecting pipe, and the baffle is arranged as telescopic structure.

[0011] As a kind of preferred, the second piston is fixedly provided with sliding block, the hydrogen cylinder is provided with sliding groove, the sliding block cooperates with sliding groove and spring is arranged between sliding block and sliding groove.

[0012] As a kind of preferred, fixed sleeve is fixedly arranged on the fixed platform, and the pull rod and fixed sleeve are slidably matched.

[0013] As a kind of preferred, one-way valve is arranged on the hose.

[0014] As a kind of preferred, the guide groove is arranged as wave-shaped groove structure.

[0015] The beneficial effects of the present application are

[0016] 1. The present application is provided with a bearing assembly and a pushing assembly, through the pushing assembly to drive the pull rod reciprocating movement, drive the first piston and the second piston reciprocating movement in the hydrogen cylinder, when the hydrogen is extruded to test the sealing of the packing seal.

[0017] 2. The present application is also provided with a test assembly, when the hydrogen leaks, the bellows reciprocating contraction and stretching will drive the hydrogen through the hose into the water tank, by dropping blue reagent in the water tank, when the blue disappears, it represents that the water contains hydrogen, greatly improves the test efficiency of the packing seal, ensures that it meets the installation requirements before installation, prevents leakage.

[0018] In summary, the present application has the advantages of good test effect and high efficiency, and is suitable for the technical field of compressor. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in conjunction with the drawings:

[0020] Figure 1 It is a structure schematic view of a hydrogen compressor packing seal test system;

[0021] Figure 2 It is a structure schematic view of a pushing assembly;

[0022] Figure 3 It is a structure schematic view of a connecting cylinder;

[0023] Figure 4 It is a cross-sectional structure schematic view of a hydrogen cylinder;

[0024] Figure 5 It is a structure schematic view of a guide groove;

[0025] Figure 6 It is a structure schematic view of a guide rod;

[0026] Figure 7 It is a state schematic view of the guide rail driving the pull rod reciprocating movement;

[0027] Figure 8 It is a state schematic view of the first piston extruding hydrogen from the connecting pipe into the second piston;

[0028] Figure 9 It is Figure 8 the enlarged view of A in the middle;

[0029] Figure 10 It is Figure 8 the enlarged view of B in the middle;

[0030] Figure 11 It is a state schematic view of the second piston extruding hydrogen from the connecting pipe into the first piston;

[0031] Figure 12 It isFigure 11 Enlarged view at C;

[0032] Figure 13 Schematic view of the state of hydrogen gas entering the water tank through the corrugated pipe;

[0033] The drawings show that the application comprises a base 1, a fixed table 2 fixedly arranged on the base 1, a pushing assembly 3 arranged in the middle of the fixed table 2, a plurality of bearing assemblies 4 arranged on the fixed table 2, each bearing assembly 4 comprising a carrier 41 for bearing a sealing packing 5, a hydrogen cylinder 6 arranged on the carrier 41, a pull rod 7 slidably arranged in the hydrogen cylinder 6, a test assembly 8 arranged on the carrier 41, the pushing assembly 3 being used to extrude hydrogen in the hydrogen cylinder 6 during reciprocating sliding of the pull rod 7, and the test assembly 8 being used to test the sealing property of the sealing packing 5 through hydrogen leakage. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings.

[0035] Embodiment 1

[0036] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0037] As shown in Figures 1 to 13 , a hydrogen compressor packing test system comprises a base 1 and a fixed table 2 fixedly arranged on the base 1, a pushing assembly 3 arranged in the middle of the fixed table 2, a plurality of bearing assemblies 4 arranged on the fixed table 2, each bearing assembly 4 comprising a carrier 41 for bearing a sealing packing 5, a hydrogen cylinder 6 arranged on the carrier 41, a pull rod 7 slidably arranged in the hydrogen cylinder 6, a test assembly 8 arranged on the carrier 41, the pushing assembly 3 being used to extrude hydrogen in the hydrogen cylinder 6 during reciprocating sliding of the pull rod 7, and the test assembly 8 being used to test the sealing property of the sealing packing 5 through hydrogen leakage.

[0038] As shown in Figures 7 to 9 , the pushing assembly 3 comprises a rotating shaft 31 rotatably arranged on the base 1, a guide rail 32 fixedly arranged on the rotating shaft 31, a guide groove 33 arranged on the guide rail 32, and a guide rod 34 fixedly arranged on the pull rod 7, the guide rod 34 being matched with the guide groove 33, wherein the rotating shaft 31 is rotatably arranged in a shaft of the fixed table 2, and a driving device is arranged on the fixed table 2 to drive the rotating shaft 31 and the guide rail 32 to rotate, when the driving device drives the guide rail 32 to rotate, the pull rod 7 is moved reciprocally, and a plurality of packing seals 5 can be tested at the same time, thereby improving the test efficiency.

[0039] In addition, as shown in Figure 4 The single set of bearing assembly 4 also includes a connecting cylinder 42 fixedly arranged between the carrier 41 and the hydrogen cylinder 6, and the pull rod 7 is in sliding fit with the connecting cylinder 42. In use, the filler seal 5 is carried by the carrier 41, the condition that the filler seal 5 is assembled in the compressor can be simulated, the use efficiency of the filler seal 5 is improved by testing before installation, and the problem of leakage after installation is prevented.

[0040] It should be emphasized that, as Figures 8 to 13As shown, the single-group test assembly 8 comprises a bellows 81 fixedly arranged between the carrier 41 and the pull rod 7, a hose 82 fixedly arranged on the bellows 81, a water tank 83 fixedly arranged on the fixed table 2, a first piston 84 slidingly arranged in the hydrogen cylinder 6, an extension rod 85 fixedly arranged on the first piston 84, a second piston 86 slidingly arranged in the hydrogen cylinder 6, an air pipe 87 fixedly arranged in the middle of the hydrogen cylinder 6, a gas leakage plate 88 fixedly arranged on the first piston 84, a baffle 89 fixedly arranged between the gas leakage plate 88 and the hydrogen cylinder 6, and connecting pipes 810 fixedly arranged on both sides of the hydrogen cylinder 6. The hose 82 is in communication with the water tank 83, the first piston 84 is fixedly connected with the pull rod 7, the second piston 86 is fixedly connected with the extension rod 85, the baffle 89 and the gas leakage plate 88 are matched with the connecting pipes 810, and the baffle 89 is arranged in an extension structure. The blue reagent can be dropped into water by using the reducing property of hydrogen, and when the blue color disappears, it indicates that the water tank 83 contains hydrogen. The initial position of the baffle 89 is arranged on a section of the connecting pipes 810 to block the connecting pipes 810. When the first piston 84 moves towards the packing seal 5, the first piston 84 slides, and at this time, the second piston 86 remains stationary under the action of the spring 814, and at the same time, external air enters between the first piston 84 and the second piston 86 through the air pipe 87. Then the baffle 89 is compressed, and in this period of time, hydrogen is pressurized until the gas leakage plate 88 moves to the connecting pipe 11, and then the hydrogen enters the second piston 86 through the connecting pipes 810, and pushes the second piston 86 to move towards the first piston 84. At this time, the air between the first piston 84 and the second piston 86 is discharged through the air pipe 87. When the first piston 84 moves away from the packing seal 5, the first piston 84 drives the second piston 86 to move simultaneously, and in the moving process, the second piston 86 causes the hydrogen to enter the first piston 84 through the connecting pipes 810 and the gas leakage plate 88. Since the first piston 84 and the second piston 86 move simultaneously, the air between the first piston 84 and the second piston 86 does not change. When the baffle 89 blocks the connecting pipes 810 again, the first piston 84 and the second piston 86 stop sliding. Through the reciprocating movement of the first piston 84 and the second piston 86, it is tested whether the hydrogen leaks. When the packing seal 5 has poor sealing performance, the hydrogen leaks, and the hydrogen flows into the bellows 81 through the packing seal 5. Since the bellows 81 is fixedly connected with the carrier 41 and the pull rod 7 at both ends, the bellows 81 reciprocally contracts and stretches under the action of the pull rod 7, and in the contracting and stretching process, the bellows 81 drives the hydrogen to enter the water tank 83 through the hose 82, so as to test whether the hydrogen leaks, and thus the sealing performance of the packing seal 5 is determined.

[0041] It is worth mentioning that, as Figure 4As shown, the second piston 86 is fixedly provided with a sliding block 812, and the hydrogen cylinder is provided with a sliding groove 813, the sliding block 812 is matched with the sliding groove 813, and a spring 814 is arranged between the sliding block 812 and the sliding groove 813.

[0042] It is worth mentioning that, as Figure 3 As shown, the fixed sleeve 9 is fixedly arranged on the fixed table 2, and the pull rod 7 is in sliding cooperation with the fixed sleeve 9

[0043] Further, as Figure 3 As shown, the hose 82 is provided with a one-way valve 10, the hydrogen gas only enters but does not exit through the one-way valve 10, and meanwhile, the water can be prevented from flowing into the bellows 81 through the hose 82.

[0044] In addition, as Figure 5

[0045] Working process

[0046] When the pull rod 7 and the packing seal 5 are installed, the driving device drives the guide rail 32 to rotate, drives the pull rod 7 to reciprocate, and drives the first piston 84 and the second piston 86 to reciprocate in the hydrogen cylinder 6, and in the reciprocating process, the hydrogen gas is driven to flow through the connecting pipe 810, when the packing seal 5 is poorly sealed, the hydrogen gas is leaked, the bellows 81 is stretched and contracted with the pull rod 7, the hydrogen gas is driven to enter the water tank 83 through the hose 82, and the hydrogen leakage condition is judged through the hydrogen reduction method, so that the efficiency of testing the sealing performance of the packing seal 5 can be improved.

[0047] In the description of the present application, it should be understood that the terms "front and back", "left and right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the application.

[0048] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0049] The above description in conjunction with the drawings is only a preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiment, it should be pointed out that for those skilled in the art, without departing from the structure of the present application, various modifications and improvements can be made, which should be regarded as the protection scope of the present application, and will not affect the effect and practicability of the present application.​

Claims

1. A hydrogen compressor packing seal testing system, comprising a base (1) and a fixed platform (2) fixedly mounted on the base (1), characterized in that: A push assembly (3) is provided in the middle of the fixed platform (2). The push assembly (3) includes a rotating shaft (31) rotatably mounted on the base (1), a guide rail (32) fixedly mounted on the rotating shaft (31), a guide groove (33) opened on the guide rail (32), and a guide rod (34) fixedly mounted on the pull rod (7). The guide rod (34) cooperates with the guide groove (33). Several sets of bearing assemblies (4) are provided on the fixed platform (2). Each set of bearing assemblies (4) includes a carrier (41) for bearing the sealing packing (5) and a connecting cylinder (42) fixedly mounted between the carrier (41) and the hydrogen cylinder (6). The pull rod (7) slides with the connecting cylinder (42). In conjunction with this, a hydrogen cylinder (6) is provided on the carrier (41), and a pull rod (7) is slidably provided inside the hydrogen cylinder (6) and the sealing packing (5). A test assembly (8) is provided on the carrier (41). Each test assembly (8) includes a bellows (81) fixedly provided between the carrier (41) and the pull rod (7), a hose (82) fixedly provided on the bellows (81), a water tank (83) fixedly provided on the fixed platform (2), a first piston (84) slidably provided inside the hydrogen cylinder (6), a telescopic rod (85) fixedly provided on the first piston (84), a second piston (86) slidably provided inside the hydrogen cylinder (6), and a rod fixedly provided on the hydrogen cylinder (6). The gas pipe (87) in the middle, the gas leak plate (88) fixedly installed on the first piston (84), the baffle (89) fixedly installed between the gas leak plate (88) and the hydrogen cylinder (6), and the connecting pipes (810) fixedly installed on both sides of the hydrogen cylinder (6), the hose (82) is connected to the water tank (83), the first piston (84) is fixedly connected to the pull rod (7), the second piston (86) is fixedly connected to the telescopic rod (85), the baffle (89) and the gas leak plate (88) are both matched with the connecting pipes (810), the baffle (89) is set as a telescopic structure, the second piston (86) is fixedly installed with a slider (812), and the hydrogen cylinder is provided with a groove (812). 13) The slider (812) cooperates with the slide groove (813) and a spring (814) is provided between the slider (812) and the slide groove (813). The initial position of the baffle is set on a section of the connecting pipe to block the connecting pipe. After the pull rod and sealing packing are installed, the driving device drives the rotating shaft and guide rail to rotate, drives the pull rod to move back and forth, drives the first piston and the second piston to move back and forth in the hydrogen cylinder. During the reciprocating movement, the hydrogen is driven to flow through the connecting pipe. When the sealing packing is not sealed well, the hydrogen leaks. The bellows is stretched and contracted back and forth with the pull rod, driving the hydrogen to enter the water tank through the hose. The hydrogen leakage is judged by the hydrogen reduction method.

2. The hydrogen compressor packing seal testing system according to claim 1, characterized in that: A fixed sleeve (9) is fixedly installed on the fixed platform (2), and the pull rod (7) slides with the fixed sleeve (9).

3. The hydrogen compressor packing seal testing system according to claim 1, characterized in that: A one-way valve (10) is provided on the hose (82).

4. The hydrogen compressor packing seal testing system according to claim 1, characterized in that: The guide groove (33) is configured as a wavy groove structure.

Images