Padding sealing test system for hydrogen compressor

Abstract

The invention relates to a hydrogen compressor packing sealing test system which comprises a base and a fixed table fixedly arranged on the base, a pushing assembly is arranged in the middle of the fixed table, a plurality of bearing assemblies are arranged on the fixed table, each bearing assembly comprises a carrier used for bearing a sealing packing piece, and a hydrogen cylinder is arranged on each carrier. A pull rod is slidably arranged in the hydrogen cylinder and the sealing packing piece, a testing assembly is arranged on the carrier, the pushing assembly is used for extruding hydrogen in the hydrogen cylinder in the process of driving the pull rod to slide in a reciprocating mode, the testing assembly tests the sealing performance of the sealing packing piece through hydrogen leakage, and the packing sealing piece can meet the installation requirement before installation. And the leakage condition is 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 hydrogen compressor packing seal test system includes a base and a fixed platform fixed on the base, a push assembly is provided in the middle of the fixed platform, and several groups of bearing assemblies are provided on the fixed platform. A single group of bearing assemblies includes a carrier for carrying a sealing packing piece, a hydrogen cylinder is provided on the carrier, a pull rod is provided for sliding between the hydrogen cylinder and the sealing packing piece, a test assembly is provided on the carrier, the push assembly is used to squeeze the hydrogen in the hydrogen cylinder during the reciprocating sliding of the pull rod, and the test assembly tests the sealing of the sealing packing piece through hydrogen leakage.

[0008] As a preference, the pushing assembly includes a rotating shaft rotatably arranged on the base, a guide rail fixedly arranged on the rotating shaft, a guide groove provided on the guide rail, and a guide rod fixedly arranged on the pull rod, and the guide rod cooperates with the guide groove.

[0009] Preferably, a single group of the carrier assembly further includes a connecting tube fixedly disposed between the carrier and the hydrogen cylinder, and the pull rod is in sliding engagement with the connecting tube.

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

[0011] As a preference, a slider is fixedly provided on the second piston, a slide groove is provided in the hydrogen cylinder, the slider cooperates with the slide groove and a spring is provided between the slider and the slide groove.

[0012] As a preference, a fixing sleeve is fixedly provided on the fixing platform and the pull rod is in sliding cooperation with the fixing sleeve.

[0013] As a preference, a one-way valve is provided on the hose.

[0014] As a preference, the guide groove is configured as a wave-shaped groove structure.

[0015] The beneficial effects of the present invention are

[0016] 1. The present invention is provided with a bearing assembly and a push assembly, which drives the pull rod to move back and forth through the push assembly, drives the first piston and the second piston to move back and forth in the hydrogen cylinder, and tests the sealing performance of the packing seal when squeezing the hydrogen.

[0017] 2. The present invention is also provided with a test component. When hydrogen leaks, the reciprocating contraction and extension of the bellows will drive the hydrogen to flow into the water tank through the hose. By dripping a blue reagent into the water tank, when the blue color disappears, it means that the water contains hydrogen, which greatly improves the testing efficiency of the packing seal, ensures that it meets the installation requirements before installation, and prevents leakage.

[0018] In summary, the present invention has the advantages of good testing effect and high efficiency, and is suitable for the field of compressor technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 The figure is a schematic structural diagram of a hydrogen compressor packing seal test system;

[0021] Figure 2 Schematic diagram of the structure of the push assembly;

[0022] Figure 3 Schematic diagram of the structure of the connecting tube;

[0023] Figure 4 Schematic diagram of the cross-sectional structure of the hydrogen cylinder;

[0024] Figure 5 Schematic diagram of the structure of the guide groove;

[0025] Figure 6 Schematic diagram of the structure of the guide rod;

[0026] Figure 7 This is a schematic diagram of the state when the guide rail drives the pull rod to move back and forth;

[0027] Figure 8 This is a schematic diagram of the state when the first piston squeezes hydrogen and flows from the connecting pipe to the second piston;

[0028] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0029] Figure 10 for Figure 8 Enlarged view of point B in the middle;

[0030] Figure 11 This is a schematic diagram of the state when the second piston squeezes hydrogen gas to flow from the connecting pipe to the first piston;

[0031] Figure 12 for Figure 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 described clearly and completely 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 with 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 includes 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 platform 2, a first piston 84 slidably arranged in the hydrogen cylinder 6, a telescopic rod 85 fixedly arranged on the first piston 84, a second piston 86 slidably arranged in the hydrogen cylinder 6, an air pipe 87 fixedly arranged in the middle of the hydrogen cylinder 6, a leak plate 88 fixedly arranged on the first piston 84, a baffle 89 fixedly arranged between the leak 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 connected to the water tank 83, and the first piston 84 is fixed to the pull rod 7. The second piston 86 is fixedly connected to the telescopic rod 85, and the baffle 89 and the air leakage plate 88 are matched with the connecting pipe 810. The baffle 89 is set to a telescopic structure. Among them, the reducing property of hydrogen can be used to drip the blue reagent into the water. When the blue disappears, it means that there is hydrogen in the water tank 83. The initial position of the baffle 89 is set on a section of the connecting pipe 810 to block the connecting pipe 810. When in use, when the first piston 84 moves toward the direction close to the packing seal 5, the first piston 84 slides. At this time, the second piston 86 remains stationary under the action of the spring 814. At the same time, the outside air enters between the first piston 84 and the second piston 86 through the air pipe 87, and then The baffle 89 is compressed, and during this period of time, the hydrogen is pressurized until the leakage plate 88 moves to the connecting pipe 11. The hydrogen enters the second piston 86 through the connecting pipe 810, pushing the second piston 86 to approach 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 at the same time. During the movement, the second piston 86 pushes the hydrogen into the first piston 84 through the connecting pipe 810 and the leakage plate 88. Since the first piston 84 and the second piston 86 move at the same time, the air between the first piston 84 and the second piston 86 is discharged. The air remains unchanged. When the baffle 89 covers the connecting pipe 810 again, the first piston 84 and the second piston 86 stop sliding. During the reciprocating movement of the first piston 84 and the second piston 86, it is tested whether hydrogen leakage occurs. When the sealing of the packing seal 5 is poor, hydrogen leakage occurs. The hydrogen will flow into the bellows 81 through the packing seal 5. Since the two ends of the bellows 81 are fixedly connected to the carrier 41 and the pull rod 7 respectively, the bellows 81 reciprocates and stretches under the action of the pull rod 7, and the bellows 81 drives the hydrogen through the hose 82 into the water tank 83 during the contraction and stretching process, to test whether the hydrogen is leaking, thereby judging the sealing of the packing seal 5.

[0041] It is worth mentioning that Figure 4As shown, a slider 812 is fixedly provided on the second piston 86 , a slide groove 813 is provided in the hydrogen cylinder, the slider 812 cooperates with the slide groove 813 and a spring 814 is provided between the slider 812 and the slide groove 813 .

[0042] It is worth mentioning that Figure 3 As shown, a fixing sleeve 9 is fixedly provided on the fixing platform 2 and the pull rod 7 is slidably matched with the fixing sleeve 9.

[0043] Further, such as Figure 3 As shown, a one-way valve 10 is provided on the hose 82 , through which hydrogen can only enter but not exit, while preventing water from flowing into the bellows 81 through the hose 82 .

[0044] In addition, if Figure 5 As shown, the guide groove 33 is configured as a wave-shaped groove structure.

[0045] Working process

[0046] After the pull rod 7 and the stuffing seal 5 are installed, the driving device drives the guide rail 32 to rotate, drives the pull rod 7 to move back and forth, drives the first piston 84 and the second piston 86 to move back and forth in the hydrogen cylinder 6, and drives the hydrogen to flow through the connecting pipe 810 during the reciprocating movement. When the stuffing seal 5 has poor sealing, it causes hydrogen leakage. The bellows 81 stretches and contracts back and forth with the pull rod 7, driving the hydrogen to enter the water tank 83 through the hose 82. The hydrogen leakage situation is judged by the hydrogen reduction method, thereby improving the efficiency of testing the sealing performance of the stuffing seal 5.

[0047] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0048] Of course, in this 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 an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0049] The above description in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. A hydrogen compressor packing seal test system, comprising a base (1) and a fixing platform (2) fixedly arranged on the base (1), characterized in that: A pushing assembly (3) is provided in the middle of the fixed platform (2), and a plurality of bearing assemblies (4) are provided on the fixed platform (2). A single bearing assembly (4) includes a carrier (41) for carrying a sealing filler (5), a hydrogen cylinder (6) is provided on the carrier (41), a pull rod (7) is provided for sliding between the hydrogen cylinder (6) and the sealing filler (5), and a test assembly (8) is provided on the carrier (41). The pushing assembly (3) is used to squeeze the hydrogen in the hydrogen cylinder (6) during the reciprocating sliding of the pull rod (7), and the test assembly (8) tests the sealing of the sealing filler (5) by leaking hydrogen.

2. A hydrogen compressor packing seal testing system according to claim 1, characterized in that: The pushing assembly (3) includes 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) provided on the guide rail (32), and a guide rod (34) fixedly arranged on the pull rod (7), wherein the guide rod (34) cooperates with the guide groove (33).

3. A hydrogen compressor packing seal testing system according to claim 1, characterized in that: The single group of the bearing assembly (4) further includes a connecting tube (42) fixedly arranged between the carrier (41) and the hydrogen cylinder (6), and the pull rod (7) is slidably matched with the connecting tube (42).

4. A hydrogen compressor packing seal testing system according to claim 1, characterized in that: The single group of test components (8) includes 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 platform (2), a first piston (84) slidably arranged in the hydrogen cylinder (6), a telescopic rod (85) fixedly arranged on the first piston (84), a second piston (86) slidably arranged in the hydrogen cylinder (6), an air pipe (87) fixedly arranged in the middle of the hydrogen cylinder (6), and a first piston (84) fixedly arranged in the first piston (84). The air leakage plate (88) on the piston (84), the baffle (89) fixedly arranged between the air leakage plate (88) and the hydrogen cylinder (6), and the connecting pipes (810) fixedly arranged 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 air leakage plate (88) are both matched with the connecting pipe (810), and the baffle (89) is set as a telescopic structure.

5. A hydrogen compressor packing seal testing system according to claim 4, characterized in that: A slider (812) is fixedly provided on the second piston (86), a slide groove (813) is provided in the hydrogen cylinder, the slider (812) cooperates with the slide groove (813), and a spring (814) is provided between the slider (812) and the slide groove (813).

6. A hydrogen compressor packing seal testing system according to claim 1, characterized in that: A fixing sleeve (9) is fixedly provided on the fixing platform (2), and the pull rod (7) is slidably matched with the fixing sleeve (9).

7. A hydrogen compressor packing seal testing system according to claim 4, characterized in that: The hose (82) is provided with a one-way valve (10).

8. A hydrogen compressor packing seal testing system according to claim 2, characterized in that: The guide groove (33) is configured as a wave-shaped groove structure.

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