An explosion-proof temperature monitoring device for reciprocating compressor packing

Abstract

The present invention relates to the field of temperature monitoring, and in particular to an explosion-proof temperature monitoring device for a reciprocating compressor packing, including a monitoring mechanism, which includes a housing, a compression rod and a packing are arranged on the housing, a bolt and a temperature measuring groove are arranged on the packing, a platinum thermal resistance is arranged inside the temperature measuring groove, a threaded block is arranged on the platinum thermal resistance, and a monitoring part is arranged on the outer side wall of the housing. A heat conduction mechanism, including a clamping rod on the platinum thermal resistance, a platinum sheet is connected to the clamping rod, the platinum sheet is in an "L" shape, there is a movable space between the platinum sheet and the platinum thermal resistance, an inclined groove on the platinum thermal resistance, an extrusion part and a limiting part are arranged inside the inclined groove, and a locking part is arranged on the platinum thermal resistance; a driving mechanism, including a groove on the threaded block, a pull rod is arranged inside the groove, a driving part is connected to the threaded block, and a follower part and a limiting part are arranged on the driving part. Through the settings of the monitoring mechanism, the heat conduction mechanism and the driving mechanism, the temperature measurement of the packing is more accurate, and it is easier to detect when the platinum thermal resistance is damaged.

Description

Technical Field

[0001] The present invention relates to the field of temperature monitoring, and particularly to an explosion-proof temperature monitoring device for a reciprocating compressor packing. Background Art

[0002] The packing of a reciprocating compressor is a very important component in the compressor, mainly used to seal the gap between the piston rod and the cylinder to prevent gas leakage. During the processing of the reciprocating compressor, in a high-pressure and high-temperature environment, the packing needs to be equipped with a cooling system to prevent the packing ring from quickly wearing due to high temperature. At the same time, in order to avoid damage to the packing caused by excessive temperature, it is also necessary to monitor the temperature of the packing in real time.

[0003] In the prior art, the method for measuring the temperature of the packing is to open a temperature measuring groove on the packing and insert a platinum thermal resistance into the inside of the temperature measuring groove for temperature measurement. This method cannot ensure that the platinum thermal resistance is in contact with the inner wall of the temperature measuring groove. When the platinum thermal resistance is not in contact with the inner wall of the temperature measuring groove, the packing temperature cannot be quickly transmitted to the platinum thermal resistance, there is a certain temperature difference, which will lead to inaccurate temperature data measured, and in the case of a single platinum thermal resistance measurement, once the platinum thermal resistance is damaged, the staff cannot discover it in time. Summary of the Invention

[0004] In view of the problem in the above or prior art that the platinum thermal resistance cannot be in contact with the inner wall of the temperature measuring groove, the accuracy of temperature measurement cannot be guaranteed, and at the same time, when using a single platinum thermal resistance for monitoring, the damage of the platinum thermal resistance cannot be discovered in time, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide an explosion-proof temperature monitoring device for a reciprocating compressor packing.

[0006] To solve the above technical problems, the present invention provides the following technical solution: An explosion-proof temperature monitoring device for a reciprocating compressor packing, including a monitoring mechanism, which includes a housing, a compression rod and a packing are arranged on the housing, bolts and temperature measuring grooves are arranged on the packing, a platinum thermal resistance is arranged inside the temperature measuring groove, a threaded block is arranged on the platinum thermal resistance, and a monitoring part is arranged on the outer side wall of the housing; a heat conduction mechanism, including a clamping rod on the platinum thermal resistance, a platinum sheet is connected to the clamping rod, the platinum sheet is in an "L" shape, there is a movable space between the platinum sheet and the platinum thermal resistance, a slotted groove is arranged on the platinum thermal resistance, an extrusion part and a limiting part are arranged inside the slotted groove, and a locking part is arranged on the platinum thermal resistance; a driving mechanism, including a groove on the threaded block, a pull rod is arranged inside the groove, a driving part is connected to the threaded block, and a follower part and a limiting part are arranged on the driving part.

[0007] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the monitoring part, a temperature display and an explosion-proof junction box are installed on the outer side wall of the housing, and the platinum thermal resistance is connected to the temperature display and the explosion-proof junction box respectively through power lines.

[0008] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the extrusion part, an extrusion block is arranged inside the inclined groove, one end of the extrusion block is connected with a slider, a ring is sleeved on the side wall of the platinum thermal resistance, a sliding groove is formed in the end face of the ring, and the slider is located inside the sliding groove.

[0009] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the limiting part, a first fixing piece is arranged inside the inclined groove, the first fixing piece is connected with a first V-shaped piece, the first V-shaped piece is connected with a second fixing piece, and the second fixing piece is connected with a second V-shaped piece.

[0010] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the locking part, a first thread is arranged on the platinum thermal resistance, and a rotating sleeve is arranged at the first thread.

[0011] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the driving part, a driving sleeve is rotatably connected to the threaded block, a chamber is arranged inside the driving sleeve, a fixing ring is arranged inside the chamber, the fixing ring is in threaded connection with the inner wall of the chamber, and the fixing ring is connected with the pull rod.

[0012] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the follower part, an arc-shaped groove is arranged on the rotating sleeve, one end of the arc-shaped groove penetrates through the end face of the rotating sleeve, and a fixing rod is arranged on the side wall of the pull rod.

[0013] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: in the limiting part, a threaded hole is arranged at the middle position of the driving sleeve, and a threaded rod is arranged inside the threaded hole.

[0014] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: the extrusion block is in sliding connection with the outer side wall of the platinum thermal resistance, and the outer side wall of the extrusion block is in contact with the inner wall of the platinum sheet.

[0015] As a preferred embodiment of the explosion-proof temperature monitoring device for the reciprocating compressor packing of the present invention, wherein: when the extrusion block moves to the innermost part of the inclined groove, the fixing ring contacts the threaded rod.

[0016] Beneficial effects of the reciprocating compressor packing explosion-proof temperature monitoring device of the present invention: Through the settings of the monitoring mechanism, heat conduction mechanism and driving mechanism, the temperature of the packing can be monitored in real time. At the same time, multi-point monitoring is adopted to display multiple temperature measurement data in real time. The multiple data are compared with each other, and the authenticity of the packing temperature can be grasped more accurately, avoiding the situation that it is impossible to detect in time when a single temperature measurement data is abnormal. When installing the platinum sheet, multiple platinum sheets can be made to fit the inner wall of the temperature measurement groove, making the platinum sheet more accurate in temperature measurement. When a single platinum sheet is damaged, it is easier for the staff to find, and it is convenient for the staff to replace the damaged platinum sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0018] Figure 1 It is a schematic diagram of the reciprocating compressor packing explosion-proof temperature monitoring device.

[0019] Figure 2 It is a schematic diagram of the packing in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0020] Figure 3 It is a schematic diagram of the platinum thermal resistor in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0021] Figure 4 It is a cross-sectional schematic diagram of the platinum thermal resistor in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0022] Figure 5 It is a schematic diagram of the extrusion part in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0023] Figure 6 It is a schematic diagram of the follower part in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0024] Figure 7 It is a schematic diagram of the chute in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0025] Figure 8 It is a schematic diagram of the limiting part in the reciprocating compressor packing explosion-proof temperature monitoring device.

[0026] In the figure: 10, housing; 11, compression rod; 12, packing; 13, bolt; 14, temperature measuring groove; 15, platinum thermal resistance; 16, threaded block; 17, monitoring part; 171, temperature display; 172, explosion-proof junction box; 173, power cord;

[0027] 20, clamping rod; 21, platinum sheet; 22, inclined groove; 23, extrusion part; 231, extrusion block; 232, slider; 233, ring; 234, chute; 24, limiting part; 241, first fixing piece; 242, first V-shaped piece; 243, second fixing piece; 244, second V-shaped piece; 25, locking part; 251, first thread; 252, rotating sleeve;

[0028] 30, groove; 31, pull rod; 32, driving part; 321, driving sleeve; 322, chamber; 323, fixed ring; 33, follower part; 331, arc groove; 332, fixed rod; 34, limiting part; 341, threaded hole; 342, threaded rod. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the drawings of the specification.

[0030] Referring to Figures 1 to 8 , this technical solution provides a monitoring mechanism, a heat conduction mechanism, and a driving mechanism for an explosion-proof temperature monitoring device of a reciprocating compressor packing 12, which can achieve a more accurate temperature monitoring effect. At the same time, the temperature is displayed in real time through the platinum thermal resistance 15 and the platinum sheet 21, and multiple temperature data are compared with each other, which can facilitate the staff to find out which device is damaged and replace it.

[0031] Further, the monitoring mechanism can monitor the real-time temperature of the packing 12. It includes a housing 10, on which a compression rod 11 and a packing 12 are provided. On the packing 12, a bolt 13 and a temperature measuring groove 14 are provided. The temperature measuring groove 14 is located on the end face of the packing 12, and a platinum thermal resistance 15 is arranged inside the temperature measuring groove 14. A threaded block 16 is arranged on the platinum thermal resistance 15, and a monitoring part 17 is arranged on the outer side wall of the housing 10. The platinum thermal resistance 15 can be threadedly connected to the packing 12 through the threaded block 16.

[0032] Furthermore, the monitoring part 17 includes a temperature display 171 and an explosion-proof junction box 172 installed on the outer side wall of the housing 10. The platinum thermal resistance 15 is connected to the temperature display 171 and the explosion-proof junction box 172 respectively through a power cord 173.

[0033] During use, after the reciprocating compressor has been in use for a period of time, the temperature of the packing 12 will rise accordingly. To prevent the excessive temperature of the packing 12 from affecting the normal operation of the compressor, the staff inserts the platinum thermal resistor 15 into the interior of the temperature measuring groove 14. When the temperature of the packing 12 rises, the real-time temperature of the packing 12 can be measured through the platinum thermal resistor 15 inside the temperature measuring groove 14 and displayed through the temperature display 171, which is convenient for the staff to understand the temperature of the packing 12 in real time and perform subsequent operations.

[0034] Furthermore, the heat conduction mechanism can accelerate the heat conduction efficiency of the platinum sheet 21, making the measurement of the temperature of the packing 12 more accurate. It includes the clamping rod 20 on the platinum thermal resistor 15. A platinum sheet 21 is connected to the clamping rod 20. The platinum sheet 21 is sleeved on the clamping rod 20. The platinum sheet 21 is in an "L" shape. There is a movable space between the platinum sheet 21 and the platinum thermal resistor 15. The inclined groove 22 on the platinum thermal resistor 15 is located at one end away from the threaded block 16, and the number of the inclined grooves 22 is multiple. The multiple inclined grooves 22 are evenly distributed on the outer side wall of the platinum thermal resistor 15. The number of the clamping rods 20 is the same as the number of the platinum sheets 21, and the number of the platinum sheets 21 is the same as the number of the inclined grooves 22. An extrusion part 23 and a limiting part 24 are arranged inside the inclined groove 22, and a locking part 25 is arranged on the platinum thermal resistor 15.

[0035] Even further, the extrusion part 23 includes the extrusion block 231 inside the inclined groove 22. The contact surface between the extrusion block 231 and the inclined groove 22 is an inclined surface. The number of the extrusion blocks 231 is the same as the number of the inclined grooves 22. One end of the extrusion block 231 is connected with a sliding block 232. Multiple extrusion blocks 231 are all connected with the ring 233. A ring 233 is sleeved on the side wall of the platinum thermal resistor 15. A sliding groove 234 is opened on the end surface of the ring 233. The sliding block 232 is located inside the sliding groove 234.

[0036] Even further, the extrusion block 231 is slidably connected with the outer side wall of the platinum thermal resistor 15, and the outer side wall of the extrusion block 231 contacts the inner wall of the platinum sheet 21.

[0037] Specifically, when the extrusion block 231 moves inside the inclined groove 22, the side of the extrusion block 231 away from the inclined groove 22 is horizontally parallel to the inner wall of the temperature measuring groove 14.

[0038] During use, when the extrusion block 231 moves inside the inclined groove 22, the extrusion block 231 can drive the sliding block 232 to move inside the sliding groove 234.

[0039] Furthermore, the limiting portion 24 includes a first fixing plate 241 inside the inclined groove 22, the number of the first fixing plates 241 is two, the two first fixing plates 241 are respectively in contact with the side walls of the extrusion block 231, the first fixing plate 241 is connected to a first V-shaped plate 242, the two first V-shaped plates 242 protrude in opposite directions, the first V-shaped plate 242 is connected to a second fixing plate 243, and the second fixing plate 243 is connected to a second V-shaped plate 244.

[0040] Specifically, both sides of each platinum sheet 21 are located below the two first V-shaped sheets 242 . The first V-shaped sheets 242 can restrict the platinum sheet 21 to prevent the platinum sheet 21 from turning outward and affecting the normal insertion of the platinum sheet 21 into the temperature measuring tank 14 .

[0041] When in use, when the extrusion block 231 moves inside the inclined groove 22, with the guidance of the inclined groove 22, the extrusion block 231 gradually rises and squeezes the platinum sheet 21, so that the paddle squeezes the first V-shaped sheet 242, so that the two first V-shaped sheets 242 are close to each other, so that the platinum sheet 21 can be detached from the bottom of the first V-shaped sheet 242, and finally the side wall of the platinum sheet 21 contacts the inner wall of the temperature measuring chamber 14. At this time, when the filler 12 heats up, the temperature of the filler 12 can be quickly transferred to the platinum sheet 21, and the temperature is displayed in real time on the temperature display 171 through the platinum sheet 21.

[0042] Furthermore, the locking portion 25 includes a first thread 251 on the platinum thermal resistor 15 , and a rotating sleeve 252 is provided at the first thread 251 . The rotating sleeve 252 presses the platinum sheet 21 , so that the docking of the platinum sheet 21 and the clamping rod 20 is more stable.

[0043] During use, when a platinum sheet 21 among multiple platinum sheets 21 is damaged, the temperature measured by the corresponding platinum sheet 21 will be different from the temperatures measured by other platinum sheets 21. By rotating the rotating sleeve 252, the restriction on the platinum sheet 21 can be released and the damaged platinum sheet 21 can be replaced.

[0044] Furthermore, the driving mechanism, when the staff inserts the platinum sheet 21 into the temperature measuring tank 14, the staff can make the platinum sheet 21 fit with the inner wall of the temperature measuring tank 14, so that the temperature measurement value is more accurate, including a groove 30 on the threaded block 16, the number of the grooves 30 is two, the two grooves 30 are both arranged on the side wall of the threaded block 16, a pull rod 31 is arranged inside the groove 30, one end of the pull rod 31 is connected to the end face of the ring 233, the pull rod 31 can drive the ring 233 to slide on the side wall of the platinum thermal resistor 15, the threaded block 16 is connected to a driving part 32, and the driving part 32 is provided with a follower part 33 and a limit part 34.

[0045] Furthermore, the driving part 32 includes a driving sleeve 321 rotatably connected to the threaded block 16. An inner chamber 322 is provided inside the driving sleeve 321. The chamber 322 is located between the driving sleeve 321 and the threaded block 16. A fixing ring 323 is provided inside the chamber 322. The fixing ring 323 is threadedly connected to the inner wall of the chamber 322, and the fixing ring 323 is connected to the pull rod 31.

[0046] During use, when the driving sleeve 321 rotates, the fixing ring 323 can move inside the chamber 322. When the fixing ring 323 moves, it can drive the pull rod 31 to move together, and drive the circular ring 233 to slide on the platinum resistance thermometer 15 through the pull rod 31.

[0047] Furthermore, the follower part 33 includes arc-shaped grooves 331 on the rotating sleeve 252. The number of arc-shaped grooves 331 is two. The two arc-shaped grooves 331 are evenly arranged on the outer side wall of the rotating sleeve 252. One end of the arc-shaped groove 331 penetrates through the end face of the rotating sleeve 252, and a fixing rod 332 is provided on the side wall of the pull rod 31.

[0048] During use, when the pull rod 31 drives the fixing rod 332 to move, the fixing rod 332 can enter the inside of the arc-shaped groove 331. When the fixing rod 332 moves inside the arc-shaped groove 331, it can drive the rotating sleeve 252 to rotate, so that the rotating sleeve 252 releases the extrusion restriction on the platinum sheet 21, and the platinum sheet 21 can be removed from the clamping rod 20.

[0049] Furthermore, the limiting part 34 includes a threaded hole 341 at the middle position of the driving sleeve 321, and a threaded rod 342 is provided inside the threaded hole 341.

[0050] Specifically, when the fixing ring 323 moves to contact the threaded rod, the fixing rod 332 does not enter the inside of the arc-shaped groove 331. At the same time, the extrusion block 231 drives the platinum sheet 21 to contact the inner wall of the temperature measuring groove 14, which is convenient for the platinum sheet 21 to conduct heat and is more accurate when measuring temperature.

[0051] Furthermore, when the extrusion block 231 moves to the innermost part of the inclined groove 22, the fixing ring 323 contacts the threaded rod, and the temperature data measured by the platinum resistance thermometer 15 and the platinum sheet 21 are separately displayed on the temperature display 171.

[0052] Specifically, according to the multiple temperature data measured by multiple platinum sheets 21, the actual temperature of the packing 12 can be judged more accurately.

[0053] Working principle:

[0054] In order to be able to monitor the temperature of the packing 12 in real time, a temperature measuring groove 14 is opened at the end face of the packing 12. Before the compressor works, the staff locks the packing 12 through the bolt 13. Then, the staff inserts the platinum resistance thermometer 15 with the platinum sheet 21 into the interior of the temperature measuring groove 14. Finally, the platinum resistance thermometer 15 is turned so that the threaded block 16 is threadedly connected to the packing 12. When the drive sleeve 321 contacts the packing 12, the installation of the platinum resistance thermometer 15 is completed.

[0055] In order to further improve the accuracy of temperature measurement, the staff can rotate the drive sleeve 321. After the drive sleeve 321 rotates, the fixed ring 323 located inside the chamber 322 moves. When the fixed ring 323 moves, it drives the pull rod 31 to move. The pull rod 31 drives the ring 233 to move. The ring 233 drives the extrusion block 231 inside the inclined groove 22 to move together. While the extrusion block 231 moves inside the inclined groove 22, it can drive the slider 232 on the extrusion block 231 to move together, so that the slider 232 moves inside the sliding groove 234. When the extrusion block 231 moves, it gradually squeezes the platinum sheet 21. When the platinum sheet 21 rises, it can squeeze the first V-shaped sheet 242, so that the platinum sheet 21 moves from the first fixing piece 241 to the second fixing piece 243. During this process, the second V-shaped sheet 244 is squeezed and contracted and then returns again. The position of the platinum sheet 21 is restricted by the second fixing piece 243 to prevent the position of the platinum sheet 21 from shifting. As the extrusion block 231 continues to move, one end of the platinum sheet 21 driven by the extrusion block 231 contacts the inner wall of the temperature measuring groove 14. As the extrusion block 231 continues to move, gradually, the side wall of the platinum sheet 21 gradually fits with the inner wall of the temperature measuring groove 14 until the fixed ring 323 contacts the threaded rod, and then stop rotating the drive sleeve 321.

[0056] After the compressor has been used for a long time, the temperature of the packing 12 gradually rises. The temperature is measured through the platinum sheet 21. Multiple platinum sheets 21 display the measured temperature data through the temperature display 171. When the multiple data displays show little difference, the actual temperature of the packing 12 can be determined, avoiding the situation where the staff cannot discover in time when the single temperature measurement data is inaccurate.

[0057] When the temperature measurement data of multiple platinum sheets 21 are different, the staff can promptly discover and determine the damaged platinum sheet 21. At this time, the staff rotates the threaded block 16 in the reverse direction, so that the platinum thermal resistor 15 disengages from the inside of the temperature measurement groove 14. Immediately afterwards, the staff removes the threaded rod from the driving sleeve 321. The staff can continue to rotate the driving sleeve 321. The driving sleeve 321 drives the fixed ring 323 to continue moving. The fixed ring 323 drives the pull rod 31 to move. The pull rod 31 drives the circular ring 233 and the fixed rod 332 to move together, so that the fixed rod 332 enters the inside of the arc-shaped groove 331. As the fixed rod 332 moves, the fixed rod 332 presses against the inner wall of the arc-shaped groove 331, causing the rotating sleeve 252 to rotate. Through the setting of the first thread 251, when the rotating sleeve 252 rotates, it can move on the side wall of the platinum thermal resistor 15, so that the rotating sleeve 252 does not press against the platinum sheet 21. At this time, the staff can remove the damaged platinum sheet 21 from the clamping rod 20. After replacing it with a new platinum sheet 21, the staff rotates the driving sleeve 321 in the reverse direction, so that the fixed ring 323 moves in the reverse direction. The fixed ring 323 drives the pull rod 31. The pull rod 31 drives the fixed rod 332 to disengage from the inside of the arc-shaped groove 331, causing the rotating sleeve 252 to rotate in the reverse direction, so that the rotating sleeve 252 squeezes and fixes the position of the platinum sheet 21. The pull rod 31 drives the extrusion block 231 to descend inside the inclined groove 22. At the same time, the extrusion block 231 drives the slider 232 to move inside the sliding groove 234. Finally, the end face of the fixed ring 323 contacts the inner wall of the chamber 322. At this time, the extrusion block 231 returns to its initial position. The staff presses the platinum sheet 21, so that both sides of the platinum sheet 21 contact the side walls of the two first fixing pieces 241 respectively, so that the platinum sheet 21 is restricted by the first V-shaped piece 242 again, preventing the platinum sheet 21 from turning outwards and affecting the normal insertion of the platinum thermal resistor 15, making it more convenient for the subsequent platinum thermal resistor 15 to be inserted into the inside of the temperature measurement groove 14.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A reciprocating compressor packing explosion-proof temperature monitoring device, characterized in that: include, A monitoring mechanism, comprising a housing (10), wherein a compression rod (11) and a filler (12) are arranged on the housing (10), a bolt (13) and a temperature measuring groove (14) are arranged on the filler (12), a platinum thermal resistor (15) is arranged inside the temperature measuring groove (14), a threaded block (16) is arranged on the platinum thermal resistor (15), and a monitoring portion (17) is arranged on the outer wall of the housing (10); The heat conduction mechanism comprises a clamping rod (20) on a platinum thermal resistor (15), a platinum sheet (21) being connected to the clamping rod (20), the platinum sheet (21) being in an "L" shape, a movable space being left between the platinum sheet (21) and the platinum thermal resistor (15), an inclined groove (22) on the platinum thermal resistor (15), a pressing portion (23) and a limiting portion (24) being arranged inside the inclined groove (22), and a locking portion (25) being arranged on the platinum thermal resistor (15); The driving mechanism comprises a groove (30) on the threaded block (16), a pull rod (31) is arranged inside the groove (30), a driving part (32) is connected to the threaded block (16), and a follower part (33) and a limit part (34) are arranged on the driving part (32); The monitoring unit (17) includes a temperature display (171) and an explosion-proof junction box (172) mounted on the outer wall of the housing (10), and the platinum thermal resistor (15) is respectively connected to the temperature display (171) and the explosion-proof junction box (172) via a power line (173); The extrusion portion (23) comprises an extrusion block (231) inside the inclined groove (22), one end of the extrusion block (231) is connected to a slider (232), a circular ring (233) is sleeved on the side wall of the platinum thermal resistor (15), a sliding groove (234) is formed on the end surface of the circular ring (233), and the slider (232) is located inside the sliding groove (234); The limiting portion (24) comprises a first fixing plate (241) inside the inclined groove (22), the first fixing plate (241) being connected to a first V-shaped plate (242), the first V-shaped plate (242) being connected to a second fixing plate (243), and the second fixing plate (243) being connected to a second V-shaped plate (244); The driving part (32) comprises a driving sleeve (321) rotatably connected to the threaded block (16), a chamber (322) being provided inside the driving sleeve (321), a fixing ring (323) being provided inside the chamber (322), the fixing ring (323) being threadably connected to the inner wall of the chamber (322), and the fixing ring (323) being connected to the pull rod (31); The extrusion block (231) is slidably connected to the outer wall of the platinum thermal resistor (15), and the outer wall of the extrusion block (231) is in contact with the inner wall of the platinum sheet (21).

2. The reciprocating compressor packing explosion-proof temperature monitoring device according to claim 1, characterized in that: The locking portion (25) comprises a first thread (251) on the platinum thermal resistor (15), and a rotating sleeve (252) is provided at the first thread (251).

3. The reciprocating compressor packing explosion-proof temperature monitoring device according to claim 2, characterized in that: The follower (33) comprises an arc-shaped groove (331) on the rotating sleeve (252), one end of the arc-shaped groove (331) penetrates the end surface of the rotating sleeve (252), and a fixing rod (332) is arranged on the side wall of the pull rod (31).

4. The reciprocating compressor packing explosion-proof temperature monitoring device according to claim 3, characterized in that: The limiting portion (34) comprises a threaded hole (341) at a middle position of the driving sleeve (321), and a threaded rod (342) is arranged inside the threaded hole (341).

5. The reciprocating compressor packing explosion-proof temperature monitoring device according to claim 4, characterized in that: When the extrusion block (231) moves to the innermost part of the inclined groove (22), the fixing ring (323) contacts the threaded rod, and the temperature data measured by the platinum thermal resistor (15) and the platinum sheet (21) are displayed separately on the temperature display (171).

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