Mechanical seal high temperature and high pressure testing device

Abstract

The utility model relates to mechanical seal technical field discloses a kind of mechanical seal high temperature high pressure test device, including test bin, the right side of the test bin is provided with end cap, the left side of the end cap is provided with centering mechanism, the outer wall top left side of the test bin is connected with water inlet pipe, the front end of the water inlet pipe is provided with filter mechanism;The centering mechanism includes sealing sleeve ring, the right end of the sealing sleeve ring is fixedly connected with the left end of end cap, the left end inboard of the sealing sleeve ring is fixedly connected with multiple fixed wedges.In the utility model, when another group of sealing parts is replaced to test in high temperature high pressure test experiment by test bin, the sliding hole of fixed wedge is inserted by the sliding column of synchronous ring alignment, then synchronous ring is pushed right to press sliding wedge, sliding wedge is matched with the slope of fixed wedge, the uniform extrusion force of multiple groups of wedges is used to make static ring automatic centering, dynamic ring and static ring contact evenly, improve the installation positioning accuracy of sealing part.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seal technology, and in particular to a high-temperature and high-pressure testing device for mechanical seals. Background Technology

[0002] Mechanical seals are dynamic sealing devices used between rotating shafts and equipment housings. They prevent media leakage through the tight fit of stationary and rotating rings, while reducing frictional losses. They are used in industrial equipment such as pumps, compressors, and reactors. Because mechanical seals face extreme conditions such as high temperature, high pressure, and corrosive media in actual operation, their sealing performance, wear resistance, and lifespan directly affect the safe and stable operation of the equipment. Seal failure can lead to media leakage, equipment shutdown, and safety accidents. Therefore, it is necessary to use a high-temperature and high-pressure mechanical seal testing device to test the leakage rate, sealing surface wear, and frictional heat generation of the seal by simulating the temperature, pressure, and shaft speed parameters under actual operating conditions. This verifies the reliability of the seal, optimizes the design, and ensures that it can maintain a stable sealing effect under extreme conditions.

[0003] Early mechanical seal testing devices consisted of an open chamber, electric heating wires, a manual pressure pump, and a standard motor. The open chamber housed the seal, the electric heating wires were wound around the outside of the chamber to simulate temperature, the manual pressure pump controlled the medium pressure via valves, and the motor directly drove the shaft to rotate. Because the open chamber could not maintain high pressure, and the uneven distribution of the heating wires resulted in large temperature deviations, existing devices use a closed testing chamber made of forged steel to withstand high pressure. Temperature deviations are controlled by a spiral heating sleeve and a temperature sensor. However, in practical use, when replacing the mechanical seal, manual adjustment of the coaxiality of the rotating and stationary rings based on experience is required, leading to low installation and positioning accuracy of the seal, uneven contact between the rotating and stationary rings, poor test repeatability, and affecting the accuracy of experimental results, thus failing to meet user needs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-temperature and high-pressure testing device for mechanical seals, which aims to improve the problems of low installation and positioning accuracy of seals, uneven contact between the dynamic and static rings, poor test repeatability, and the impact on the accuracy of experimental results in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical seal high temperature and high pressure test device, including a test chamber, an end cover is provided on the right side of the test chamber, a centering mechanism is provided on the left side of the end cover, a water inlet pipe is connected to the top left side of the outer wall of the test chamber, and a filter mechanism is provided at the front end of the water inlet pipe;

[0006] The centering mechanism includes a sealing collar, the right end of which is fixedly connected to the left end of the end cap. Multiple fixing wedges are fixedly connected to the inner side of the left end of the sealing collar. Each fixing wedge has a sliding hole at its left end. Each fixing wedge has a sliding wedge on its left side, and each sliding wedge has a sliding groove at its left end. A synchronization ring is located on the left side of the sealing collar. Multiple sliding pillars are fixedly connected to the right end of the synchronization ring. The outer walls of the sliding pillars are slidably connected to the inner walls of their respective sliding grooves. The rear ends of the sliding pillars penetrate one side of the inner wall of their respective sliding grooves and are slidably connected to the inner wall of their respective sliding holes. Multiple bolts are located on the left end of the synchronization ring. The right ends of the bolts penetrate the left end of the synchronization ring and are threadedly connected to the left end of the sealing collar. A positioning assembly is located on the left side of the end cap, and a fixing assembly is located on the outer wall of the test chamber.

[0007] As a further description of the above technical solution:

[0008] The filtration mechanism includes a filter tube, the rear end of which is connected to the front end of the water inlet pipe. A slag collection box is connected to the left side of the filter tube. A filter shell is installed inside the filter tube. The left side of the filter shell is fixedly connected to the right side of the slag collection box. A filter screen is fixedly connected to the front end of the filter shell. A sealing ring is fixedly connected to the left side of the outer wall of the filter tube. A connecting component is installed in the middle of the outer wall of the filter tube.

[0009] As a further description of the above technical solution:

[0010] The positioning component includes multiple positioning cones, the right ends of which are fixedly connected to the left end of the end cap. The right end of the test chamber has multiple positioning holes, and the outer walls of the multiple positioning cones are slidably connected to the inner walls of the corresponding positioning holes.

[0011] As a further description of the above technical solution:

[0012] The fixing assembly includes multiple brackets, the left ends of which are rotatably connected to the outer wall of the test chamber, the inner right ends of which are rotatably connected to a rotating shaft, the outer walls of which are fixedly connected to an eccentric wheel, and one side of the outer wall of which are fixedly connected to a handle.

[0013] As a further description of the above technical solution:

[0014] The connecting assembly includes two connecting arms. The left ends of the two connecting arms are rotatably connected to the upper and lower ends of the slag collection box, respectively. A connecting piece is fixedly connected to the right end of each adjacent side of the two connecting arms. The inner walls of the two connecting pieces are threaded with the same bolt.

[0015] As a further description of the above technical solution:

[0016] The front end of the filter tube is connected to an outer shell, and a heat-conducting shell is fixedly connected inside the outer shell. A heating wire is provided on the inner wall of the outer shell.

[0017] As a further description of the above technical solution:

[0018] A water return pipe is connected to the bottom right side of the outer wall of the test chamber, and an air inlet pipe is connected to the top middle of the outer wall of the test chamber. A valve is installed on the outer wall of the air inlet pipe, and a pressure gauge is installed on the top right side of the outer wall of the test chamber.

[0019] As a further description of the above technical solution:

[0020] One side of each of the multiple sliding wedges is slidably connected to one side of a corresponding fixed wedge, and the outer wall size of the filter housing matches the inner wall size of the filter tube.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when a new set of seals needs to be replaced for testing during a high-temperature and high-pressure test in the test chamber, the new stationary ring is placed inside the sealing sleeve, the sliding pin of the synchronizing ring is inserted into the sliding hole of the fixed wedge, and then the synchronizing ring is pushed to the right to press the sliding wedge. The sliding wedge contracts synchronously inward through its cooperation with the inclined surface of the fixed wedge. The uniform squeezing force of multiple sets of wedges makes the stationary ring automatically centered, and the contact between the moving ring and the stationary ring is uniform, thereby improving the installation and positioning accuracy of the seals.

[0023] 2. In this utility model, after the external water pump pumps the circulating liquid in, the medium heated by the heating wire enters the filter tube. Particle impurities in the liquid are blocked by the filter screen. Through the inclined filter screen, the liquid slides along the inclined surface to the left gap and flows into the connected slag collection box. The filtered fluid enters the water inlet pipe through the filter screen. The impurity-containing liquid temporarily stored in the slag collection box is filtered through the filter shell and flows into the water inlet pipe, thereby achieving the filtration of the medium and avoiding the blockage of the pipeline by impurities. Attached Figure Description

[0024] Figure 1 This is a perspective view of a mechanical seal high-temperature and high-pressure testing device proposed in this utility model;

[0025] Figure 2 This is a front view of a mechanical seal high-temperature and high-pressure testing device proposed in this utility model;

[0026] Figure 3 This is a structurally exploded view of the test chamber of a mechanical seal high-temperature and high-pressure testing device proposed in this utility model;

[0027] Figure 4 This is an exploded view of the end cap structure of a mechanical seal high-temperature and high-pressure testing device proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the filter tube structure of a mechanical seal high temperature and high pressure testing device proposed in this utility model;

[0029] Figure 6 This is a structurally disassembled diagram of the slag collection box of a mechanical seal high-temperature and high-pressure testing device proposed in this utility model.

[0030] Legend:

[0031] 1. Test chamber; 2. End cap; 3. Centering mechanism; 301. Sealing ring; 302. Fixed wedge; 303. Synchronizing ring; 304. Sliding wedge; 305. Slide groove; 306. Slide hole; 307. Slide column; 308. Bolt 1; 309. Positioning assembly; 3091. Positioning cone; 3092. Positioning hole; 310. Fixing assembly; 3101. Bracket; 3102. Rotating shaft; 3103. Eccentricity 3104. Wheel; 4. Handle; 5. Inlet pipe; 6. Filter mechanism; 7. Filter tube; 8. Sludge collection box; 9. Filter housing; 10. Filter screen; 11. Sealing ring; 22. Connecting assembly; 33. Connecting arm; 44. Connecting piece; 55. Bolt 2; 6. Outer shell; 7. Heat-conducting shell; 8. Heating wire; 9. Return pipe; 10. Air inlet pipe; 11. Valve; 12. Pressure gauge. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a mechanical seal high temperature and high pressure test device, including a test chamber 1. The test chamber 1 provides a simulated working environment of high temperature and high pressure for the mechanical seal. An end cover 2 is provided on the right side of the test chamber 1, and a centering mechanism 3 is provided on the left side of the end cover 2. A water inlet pipe 4 is connected to the top left side of the outer wall of the test chamber 1, and a filter mechanism 5 is provided at the front end of the water inlet pipe 4.

[0034] The centering mechanism 3 includes a sealing collar 301. The inner wall of the sealing collar 301 provides an installation reference surface for the stationary ring. The right end of the sealing collar 301 is fixedly connected to the left end of the end cap 2. Multiple fixing wedges 302 are fixedly connected to the inner side of the left end of the sealing collar 301. Each of the multiple fixing wedges 302 has a sliding hole 306 at its left end. The sliding hole 306 restricts the movement trajectory of the sliding column 307 and prevents the sliding wedge 304 from tilting. Each of the multiple fixing wedges 302 has a sliding wedge 304 on its left side. When the sliding wedge 304 is under pressure, it slides along the inclined surface of the fixing wedge 302 and retracts inward. It uses the wedge self-locking principle to form a uniform extrusion force on the outer wall of the stationary ring, realizing the automatic centering of the stationary ring. Each of the multiple sliding wedges 304 has a sliding groove 305 at its left end. A synchronization ring is provided on the left side of the sealing collar 301. 303, the synchronizing ring 303 simultaneously compresses all sliding wedges 304, causing the sliding wedges 304 to move synchronously. Multiple sliding pillars 307 are fixedly connected to the right end of the synchronizing ring 303. The outer walls of the multiple sliding pillars 307 are slidably connected to the inner walls of the corresponding sliding grooves 305. The rear ends of the multiple sliding pillars 307 penetrate one side of the inner wall of the corresponding sliding grooves 305 and are slidably connected to the inner wall of the corresponding sliding holes 306. Multiple bolts 308 are provided on the left end of the synchronizing ring 303. Bolts 308 are used to connect the synchronizing ring 303 and the sealing ring 301. The right ends of the multiple bolts 308 penetrate the left end of the synchronizing ring 303 and are threadedly connected to the left end of the sealing ring 301. A positioning component 309 is provided on the left side of the end cover 2. A fixing component 310 is provided on the outer wall of the test chamber 1.

[0035] The positioning component 309 includes multiple positioning cones 3091. The right ends of the multiple positioning cones 3091 are fixedly connected to the left end of the end cap 2. The right end of the test chamber 1 is provided with multiple positioning holes 3092. The positioning cones 3091 and the positioning holes 3092 ensure that the axis of the end cap 2 and the test chamber 1 coincides. The outer walls of the multiple positioning cones 3091 are slidably connected to the inner walls of the corresponding positioning holes 3092.

[0036] The fixing assembly 310 includes multiple brackets 3101. The left ends of the multiple brackets 3101 are rotatably connected to the outer wall of the test chamber 1. The inner right ends of the multiple brackets 3101 are rotatably connected to a rotating shaft 3102. The outer walls of the multiple rotating shafts 3102 are fixedly connected to an eccentric wheel 3103. Rotating the handle 3104 causes the eccentric wheel 3103 to press against the outer wall of the end cover 2. The self-locking characteristic of the eccentric structure provides axial pressure to quickly fix the end cover 2. The outer walls of the multiple eccentric wheels 3103 are fixedly connected to a handle 3104. Rotating the handle 3104 in the opposite direction can release the fixation, making it convenient to put on and take off the end cover 2.

[0037] Specifically, when conducting high-temperature and high-pressure tests in test chamber 1, and it is necessary to replace another set of seals for testing, by pulling multiple handles 3104, the eccentric wheel 3103 is released from friction self-locking. Then, the bracket 3101 is rotated, causing the end cover 2 to disengage from its fixed state. After removing the end cover 2, the bolt 308 is unscrewed. At this time, the synchronizing ring 303 drives the sliding column 307 to disengage from the sliding groove 305 of the sliding wedge 304 and the sliding hole 306 of the fixed wedge 302. The sliding wedge 304 loses its constraint, and the fixation of the stationary ring is released, allowing the old stationary ring to be removed. When installing the new stationary ring, it is placed inside the sealing sleeve 301, and the sliding column 307 of the synchronizing ring 303 is aligned with the sliding hole 306 of the fixed wedge 302 and inserted. Then, the synchronizing ring 303 is pushed to the right, and the sliding column 307 is inserted into the sliding hole 306 of the fixed wedge 302. The column 307 slides along the groove 305 and presses against the sliding wedge 304. The column 307 slides inside the groove 305, serving as a guide and limiter. The sliding wedge 304, through its engagement with the inclined surface of the fixed wedge 302, contracts synchronously inward. The uniform squeezing force of multiple sets of wedges automatically centers the stationary ring, avoiding experience errors caused by manual adjustment. After the synchronous ring 303 is fixed by bolt 308, the positioning cone 3091 of the positioning component 309 engages with the positioning hole 3092 of the test chamber 1, ensuring that the axis of the end cover 2 coincides with that of the test chamber 1, thereby ensuring the coaxiality of the stationary ring and the moving ring inside the test chamber 1. Then, the bracket 3101 is rotated, and the eccentric wheel 3103 is locked by the handle 3104, so that the end cover 2 and the test chamber 1 fit tightly together.

[0038] Reference Figure 1 , Figure 5 and Figure 6The filtration mechanism 5 includes a filter tube 501, which provides space for media filtration. The rear end of the filter tube 501 is connected to the front end of the water inlet pipe 4. A sludge collection box 502 is connected to the left side of the filter tube 501. The sludge collection box 502 is used to temporarily store particulate impurities intercepted by the filter screen 504. A filter shell 503 is installed inside the filter tube 501. The left side of the filter shell 503 is fixedly connected to the right side of the sludge collection box 502. A filter screen 504 is fixedly connected to the front end of the filter shell 503. The inclined angle of the filter screen 504 guides impurities to slide towards the sludge collection box 502 using water flow. A sealing ring 505 is fixedly connected to the left side of the outer wall of the filter tube 501. When the sludge collection box 502 is connected to the filter tube 501, the sealing ring 505 is squeezed. 5. A seal is formed to prevent high-pressure medium from leaking from the connection. A connecting assembly 506 is provided in the middle of the outer wall of the filter tube 501. The connecting assembly 506 includes two connecting arms 5061. The left ends of the two connecting arms 5061 are rotatably connected to the upper and lower ends of the slag collection box 502, respectively. A connecting piece 5062 is fixedly connected to the right end of each adjacent side of the two connecting arms 5061. The inner wall of the two connecting pieces 5062 is threaded with the same bolt 5063. Loosening the bolt 5063 allows the connecting arm 5061 to rotate. One side of each of the multiple sliding wedges 304 is slidably connected to one side of the corresponding fixed wedge 302. The outer wall size of the filter shell 503 matches the inner wall size of the filter tube 501.

[0039] After the external water pump pumps in the circulating liquid, the medium heated by the heating wire 8 enters the filter pipe 501. Particulate impurities in the liquid are intercepted by the filter screen 504. The filter screen 504 is set at an angle, and the impurities will slide along the inclined surface to the left gap and flow into the connected slag collection box 502. The filtered fluid passes through the filter screen 504 and enters the water inlet pipe 4. The liquid containing impurities temporarily stored in the slag collection box 502 is filtered by the filter shell 503 and then flows into the water inlet pipe 4, thus achieving the filtration of the medium and avoiding the blockage of the pipeline due to the residue of impurities. When it is necessary to clean the impurities, loosen the bolt 2 5063 to release the fixing of the connecting arm 5061 to the slag collection box 502, rotate the connecting arm 5061 and remove the slag collection box 502. The sealing ring 505 on the left side of the filter pipe 501 can ensure the sealing performance of the connection between the slag collection box 502 and the filter pipe 501 to prevent the medium from leaking.

[0040] Reference Figure 1 , Figure 2 and Figure 5The front end of the filter tube 501 is connected to the outer shell 6, which provides installation space for the heating wire 8. A heat-conducting shell 7 is fixedly connected inside the outer shell 6, which evenly transfers heat to the medium. The inner wall of the outer shell 6 is provided with the heating wire 8, which heats the medium by means of current. The bottom right side of the outer wall of the test chamber 1 is connected to the return water pipe 9, which guides the medium after testing back to the circulation system. The top middle of the outer wall of the test chamber 1 is connected to the air inlet pipe 10, and the outer wall of the air inlet pipe 10 is provided with the valve 11. The top right side of the outer wall of the test chamber 1 is provided with the pressure gauge 12. Pressurized gas is introduced into the air inlet pipe 10, and the valve 11 controls the air intake by adjusting the opening degree. The pressure gauge 12 displays the pressure inside the test chamber 1 in real time.

[0041] Specifically, the medium enters the outer shell 6 after being filtered by the filter pipe 501. The heating wire 8 on the inner wall of the outer shell 6 is energized and heats up. The heat is evenly transferred to the internal medium through the heat-conducting shell 7. The heated medium enters the test chamber 1 through the water inlet pipe 4. After participating in the sealing test, it flows out through the return water pipe 9 on the bottom right side of the test chamber 1, forming a closed loop circulation to ensure that the medium is continuously renewed and the flow rate is stable, simulating the dynamic flow state of the medium in the actual equipment. At the same time, gas is introduced into the test chamber 1 through the air inlet pipe 10. The air intake can be adjusted by turning the valve 11, and the pressure gauge 12 displays the internal pressure value in real time.

[0042] Working principle: When a new set of seals needs to be replaced during a high-temperature and high-pressure test in test chamber 1, pulling multiple handles 3104 releases the friction self-locking of the eccentric wheel 3103. Then, the bracket 3101 is rotated away from the end cover 2, causing the end cover 2 to disengage. After removing the end cover 2, the bolt 308 is unscrewed. The synchronizing ring 303 drives the sliding column 307 to disengage from the sliding groove 305 of the sliding wedge 304 and the sliding hole 306 of the fixed wedge 302. The sliding wedge 304 loses its constraint, releasing the fixation of the stationary ring, allowing the old stationary ring to be removed. When installing the new stationary ring, it is placed inside the sealing sleeve 301. The sliding column 307 of the synchronizing ring 303 is aligned with the sliding hole 306 of the fixed wedge 302 and inserted. Then, the synchronizing ring 303 is pushed to the right. The sliding column 307 slides along the sliding groove 305 and presses the sliding wedge 304. The sliding column 307 slides inside the sliding groove 305 for guidance and limitation. The sliding wedge 304, through its cooperation with the inclined surface of the fixed wedge 302, synchronously contracts inward. The uniform squeezing force of multiple sets of wedges makes the stationary ring automatically centered, avoiding the experience error of manual adjustment. After the synchronous ring 303 is fixed by bolt 308, the positioning cone 3091 of the positioning component 309 fits into the positioning hole 3092 of the test chamber 1, ensuring that the end cover 2 and the axis of the test chamber 1 are coincident, thereby ensuring the coaxiality of the stationary ring and the moving ring in the test chamber 1. Then, the bracket 3101 is rotated, and the eccentric wheel 3103 is locked by the handle 3104, so that the end cover 2 and the test chamber 1 are tightly fitted.

[0043] After the external water pump pumps in the circulating liquid, the medium heated by the heating wire 8 enters the filter tube 501. Particulate impurities in the liquid are blocked by the filter screen 504. Through the inclined filter screen 504, the liquid slides along the inclined surface to the left gap and flows into the connected slag collection box 502. The filtered fluid enters the water inlet pipe 4 through the filter screen 504. The impurity-containing liquid temporarily stored in the slag collection box 502 is filtered through the filter shell 503 and flows into the water inlet pipe 4, thus achieving medium filtration and preventing impurities from clogging the pipeline. When it is necessary to clean the impurities, loosen the bolt 2 5063 to release the connecting arm 5061 from fixing the slag collection box 502. Rotate the connecting arm 5061 to remove the slag collection box 502. The sealing ring 505 on the left side of the filter tube 501 ensures the sealing performance of the connection between the slag collection box 502 and the filter tube 501 to prevent medium leakage.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical seal high-temperature and high-pressure testing device, comprising a test chamber (1), characterized in that: An end cap (2) is provided on the right side of the test chamber (1), a centering mechanism (3) is provided on the left side of the end cap (2), a water inlet pipe (4) is connected to the top left side of the outer wall of the test chamber (1), and a filter mechanism (5) is provided at the front end of the water inlet pipe (4). The centering mechanism (3) includes a sealing ring (301). The right end of the sealing ring (301) is fixedly connected to the left end of the end cap (2). Multiple fixing wedges (302) are fixedly connected to the inner side of the left end of the sealing ring (301). Each of the multiple fixing wedges (302) has a sliding hole (306) at its left end. Each of the multiple fixing wedges (302) has a sliding wedge (304) on its left side. Each of the multiple sliding wedges (304) has a sliding groove (305) at its left end. A synchronization ring (303) is provided on the left side of the sealing ring (301). Multiple sliding pins (304) are fixedly connected to the right end of the synchronization ring (303). 07), the outer walls of the plurality of sliding columns (307) are slidably connected to the inner walls of the corresponding sliding grooves (305), the rear ends of the plurality of sliding columns (307) penetrate one side of the inner wall of the corresponding sliding grooves (305) and are slidably connected to the inner wall of the corresponding sliding holes (306), the left end of the synchronization ring (303) is provided with a plurality of bolts (308), the right end of the plurality of bolts (308) penetrates the left end of the synchronization ring (303) and is threadedly connected to the left end of the sealing sleeve (301), the left side of the end cover (2) is provided with a positioning component (309), and the outer wall of the test chamber (1) is provided with a fixing component (310).

2. The mechanical seal high-temperature and high-pressure testing device according to claim 1, characterized in that: The filtration mechanism (5) includes a filter tube (501), the rear end of which is connected to the front end of the water inlet pipe (4), the left side of which is connected to a slag collection box (502), a filter shell (503) is provided inside the filter tube (501), the left side of which is fixedly connected to the right side of the slag collection box (502), a filter screen (504) is fixedly connected to the front end of the filter shell (503), a sealing ring (505) is fixedly connected to the left side of the outer wall of the filter tube (501), and a connecting component (506) is provided in the middle of the outer wall of the filter tube (501).

3. The mechanical seal high-temperature and high-pressure testing device according to claim 1, characterized in that: The positioning component (309) includes multiple positioning cones (3091), the right ends of the multiple positioning cones (3091) are fixedly connected to the left end of the end cap (2), and the right end of the test chamber (1) is provided with multiple positioning holes (3092), and the outer walls of the multiple positioning cones (3091) are slidably connected to the inner walls of the corresponding positioning holes (3092).

4. The mechanical seal high-temperature and high-pressure testing device according to claim 1, characterized in that: The fixing assembly (310) includes multiple brackets (3101), the left ends of which are rotatably connected to the outer wall of the test chamber (1), the inner right ends of which are rotatably connected to a rotating shaft (3102), the outer walls of which are fixedly connected to an eccentric wheel (3103), and one side of the outer wall of which are fixedly connected to a handle (3104).

5. The mechanical seal high-temperature and high-pressure testing device according to claim 2, characterized in that: The connecting assembly (506) includes two connecting arms (5061), the left ends of the two connecting arms (5061) are rotatably connected to the upper and lower ends of the slag collection box (502) respectively, and the right ends of the adjacent sides of the two connecting arms (5061) are fixedly connected to connecting pieces (5062), and the inner walls of the two connecting pieces (5062) are threaded with the same bolt (5063).

6. The mechanical seal high-temperature and high-pressure testing device according to claim 2, characterized in that: The front end of the filter tube (501) is connected to the outer shell (6), and a heat-conducting shell (7) is fixedly connected inside the outer shell (6). A heating wire (8) is provided on the inner wall of the outer shell (6).

7. The mechanical seal high-temperature and high-pressure testing device according to claim 1, characterized in that: A return water pipe (9) is connected to the bottom right side of the outer wall of the test chamber (1), an air inlet pipe (10) is connected to the top middle of the outer wall of the test chamber (1), a valve (11) is provided on the outer wall of the air inlet pipe (10), and a pressure gauge (12) is provided on the top right side of the outer wall of the test chamber (1).

8. The mechanical seal high-temperature and high-pressure testing device according to claim 2, characterized in that: One side of each of the multiple sliding wedges (304) is slidably connected to one side of the corresponding fixed wedge (302), and the outer wall size of the filter shell (503) matches the inner wall size of the filter tube (501).

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