Thermocouple disassembling and assembling tool of kettle type reactor

Abstract

The utility model belongs to the technical field of chemical production equipment, and relates to a thermocouple dismounting tool for a kettle type reactor, which comprises a bottom plate provided with a first opening for a thermocouple to pass through, and bolt holes at least corresponding to part of fixing bolts of a mounting flange are arranged around the first opening; the cross beam is tightly attached to the thermocouple boss and is provided with a second opening for the thermocouple to pass through; the first mounting plate is arranged on one side, facing the boss, of the cross beam and is fixedly connected with the cross beam through a short connecting rod; the second mounting plate is arranged on the side, away from the cross beam, of the first mounting plate and fixedly connected with the bottom plate through a long connecting rod, and the cross beam is provided with a through hole allowing the long connecting rod to penetrate; a screw connected with one side, deviating from the cross beam, of the first mounting plate is connected with a nut with a handle, the nut with the handle is rotated to drive the screw and the cross beam to linearly move, and the cross beam pushes the boss to pull out the thermocouple. The thermocouple dismounting tool has the advantage that the dismounting work can be easily completed by a single person under the condition that the thermocouple is not impacted or deformed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical production equipment relates to a kind of hot-wire dismounting tool of kettle type reactor, especially applicable to the high-pressure hot-wire dismounting of EVA device kettle type reactor. BACKGROUND

[0002] EVA device kettle type reactor can be used to produce ethylene-vinyl acetate resin, to ensure reliable production, the agitator in it needs to be regularly disassembled and inspected. However, in the reactor used, the agitator is equipped with an ultrahigh-pressure thermocouple, so if the agitator is to be disassembled and removed, the ultrahigh-pressure thermocouple will block it. Therefore, the thermocouple needs to be removed first, and then the agitator can be removed.

[0003] The thermocouple is usually used with a thermocouple adapter. During normal production, the gap between the thermocouple and the thermocouple adapter is filled with polymer. During the reactor shutdown and replacement process, nitrogen used to replace flammable gas carries away a large amount of heat. As the heat is carried away by nitrogen, the molten polymer remaining in the gap between the thermocouple and the adapter will gradually solidify as the reactor temperature decreases. In this way, the polymer solidified in the gap will generate a large friction force when the thermocouple is removed, making it difficult to remove the thermocouple along the axial direction using manpower or a heavy hammer dismounting tool. Especially when the temperature drops below 80 degrees Celsius, it is difficult or even impossible to remove the thermocouple even with multiple people working in shifts.

[0004] In the existing thermocouple removal method, the use of axial heavy hammer to knock off the thermocouple will cause a great impact on the thermocouple body and even damage it. At the same time, the heavy hammer may cause the thermocouple body to bend and deform, and repeated bending will reduce the metal strength. In addition, if the reactor temperature is low, even using a heavy hammer dismounting tool cannot remove the thermocouple.

[0005] Based on the above status, how to smoothly remove the thermocouple of the EVA device kettle type reactor, and avoid impact and deformation of the thermocouple during removal, has become a problem to be solved. INVENTION CONTENTS

[0006] The thermocouple dismounting tool for kettle type reactor provided by the utility model amplifies the pulling force by using a screw rod, and a single person can easily complete the dismounting work without causing impact and deformation to the thermocouple.

[0007] The technical scheme of the utility model comprises: a thermocouple dismounting tool for kettle type reactor, comprising:

[0008] A bottom plate is provided with a first opening hole for the thermocouple to pass through, and a bolt hole is provided around the first opening hole, which corresponds to at least part of the fixing screw of the mounting flange;

[0009] A crossbeam is tightly attached to the boss of the thermocouple, and the crossbeam is provided with a second opening for the thermocouple to pass through, and the center line of the second opening is aligned with the center line of the first opening;

[0010] A first mounting plate is arranged on the side of the crossbeam facing the boss, and the first mounting plate is fixedly connected with the crossbeam through a short connecting rod;

[0011] A second mounting plate is arranged on the side of the first mounting plate away from the crossbeam, and the second mounting plate is fixedly connected with the bottom plate through a long connecting rod, and the crossbeam is provided with a through hole for the long connecting rod to pass through;

[0012] A screw rod is connected with the side of the first mounting plate away from the crossbeam, and a handle nut is connected with the screw rod, and rotating the handle nut drives the screw rod and the crossbeam to move linearly, and the crossbeam pushes the boss to pull out the thermocouple.

[0013] The technical scheme of the utility model further includes that the length of the short connecting rod is greater than or equal to the length of the transition part of the thermocouple.

[0014] The technical scheme of the utility model further includes that the number of the short connecting rods is two, and the two short connecting rods are symmetrically arranged with the second opening of the crossbeam as the center.

[0015] The technical scheme of the utility model further includes that the size of the second opening is smaller than the size of the first opening.

[0016] The technical scheme of the utility model further includes that the number of the long connecting rods is two, and the two long connecting rods are symmetrically arranged with the first opening of the bottom plate as the center, and the hole diameter of the through hole of the crossbeam is greater than the diameter of the long connecting rod.

[0017] The technical scheme of the utility model further includes that a gasket is arranged between the handle nut and the second mounting plate.

[0018] The beneficial effects of the utility model are as follows: the thermocouple is disassembled in the mode of screw rod, the pulling force is amplified through the handle nut, the disassembly workload is greatly reduced, and one person can complete the disassembly of the thermocouple; compared with the heavy hammer type disassembly tool, the stability is high, the thermocouple is not deformed and the reliability is not reduced, the thermocouple itself is not repeatedly impacted, and the strength of the welded part of the armored shell and the reliability of the internal thermocouple wire connection are avoided to be reduced. In short, the thermocouple disassembly tool of the scheme is fixed through cooperation with the flange bolt, the pulling force is amplified through the handle, the damage to the thermocouple body is avoided, the stability and safety of the device operation are improved, and the probability of accidents caused by thermocouple failure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme in the embodiments of the present application clearer, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is the installation schematic diagram before the thermocouple is removed in the embodiment.

[0021] Figure 2 is the dismounting tool schematic diagram of the embodiment.

[0022] Figure 3 is the bottom plate schematic diagram of the dismounting tool.

[0023] Figure 4 is the crossbeam schematic diagram of the dismounting tool.

[0024] Among them:

[0025] 1, thermocouple, 11, extension tail line, 12, transition part, 13, boss, 2, thermocouple adapter, 3, mounting thread;

[0026] 10, bottom plate, 101, bolt hole, 102, first opening, 20, crossbeam, 201, through hole, 202, second opening, 30, first mounting plate, 40, second mounting plate, 50, gasket, 60, handle nut, 70, short connecting rod, 80, long connecting rod, 90, screw rod. DETAILED DESCRIPTION

[0027] In order to make the technical scheme in the embodiments of the present application clearer, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] In this paper, the terms such as "up, down, left, right, inside, outside" are established based on the positional relationship shown in the drawings, and according to the different drawings, the corresponding positional relationship may also change accordingly, therefore, it cannot be understood as the absolute limitation of the protection scope; moreover, the relationship terms such as "first" and "second" are only used to distinguish one part from another part with the same name, and do not necessarily require or imply any such actual relationship or order between the parts. In addition, in the embodiments of the present application, "above", "below", etc.

[0029] As Figure 1As shown, the thermal couple 1 of the embodiment is roughly divided into three parts, i.e. the boss 13, the transition part 12 and the extended tail 11, and is fixed on the EVA device kettle reactor through the mounting flange before dismounting. Specifically, the mounting thread 3 sleeved outside the thermal couple adapter 2 is fixed with the mounting flange.

[0030] With reference to Figures 2 to 4 The thermal couple dismounting tool of the kettle reactor of the embodiment comprises a bottom plate 10 provided with a first opening hole 102 for the thermal couple 1 to pass through, and bolt holes 101 arranged around the first opening hole 102 and corresponding to at least part of the fixing bolts of the mounting flange. Figure 1 Before the thermal couple 1 is dismounted, the thermal couple adapter 2 is arranged outside the thermal couple 1, and the mounting thread 3 is designed outside the thermal couple adapter 2 to be fixed with the mounting flange for fixing the thermal couple 1 and the thermal couple adapter 2, and the fixing bolts are arranged around the mounting flange. Thus, when the thermal couple 1 needs to be dismounted, the bolt holes 101 of the bottom plate 10 can be matched with the fixing bolts of the mounting flange, i.e. the bolt holes 101 are sleeved on the fixing bolts, so that when the thermal couple 1 is dismounted, the bottom plate 10 will be attached to the mounting flange, ensuring that the axial tension is coincided with the axis of the thermal couple 1, avoiding the deformation of the thermal couple 1 during dismounting, thereby avoiding the reduction of the strength of the armored shell of the thermal couple 1, the reduction of the service life, and even the damage. At the same time, the matching of the bolt holes 101 and the fixing bolts of the mounting flange can limit the rotation of the whole tool when the handle nut 60 is rotated, and cannot play a stretching role. In addition, the limiting role of the fixing bolts can complete the dismounting work by one person.

[0031] The beam 20 is attached to the boss 13 of the thermal couple 1, and the beam 20 is provided with a second opening hole 202 for the thermal couple 1 to pass through, and the center line of the second opening hole 202 is aligned with the center line of the first opening hole 101, so that the first opening hole 102 of the bottom plate 10 and the second opening hole 202 of the beam 20 can accommodate the thermal couple 1 to pass through during dismounting. By attaching the beam 20 to the boss 13 of the thermal couple 1, the beam 20 can be used to clamp the thermal couple during dismounting of the thermal couple 1, and then the dismounting tension is transmitted to the thermal couple 1. Specifically, the size of the second opening hole 202 is smaller than the size of the first opening hole 102, and four bolt holes 101 are arranged around the first opening hole 102.

[0032] The first mounting plate 30 is arranged on the side of the crossbeam 20 facing the boss 13, and the first mounting plate 30 is fixedly connected with the crossbeam 20 through the short connecting rod 70. Specifically, the length of the short connecting rod 70 is greater than or equal to the length of the transition portion 12 of the thermocouple 1, so that the transition portion 12 of the thermocouple 1 is accommodated between the first mounting plate 30 and the crossbeam 20 when the thermocouple 1 is removed, thereby avoiding interference with the dismounting tool and even damage to the transition portion 12. Alternatively, the length of the short connecting rod 70 can be greater than the length of the transition portion 12 and the partially extended tail line 11. The number of the short connecting rods 70 is two, and the two short connecting rods 70 are symmetrically arranged with the second opening hole 202 of the crossbeam 20 as the center.

[0033] The second mounting plate 40 is arranged on the side of the first mounting plate 30 away from the crossbeam 20, and the second mounting plate 40 is fixedly connected with the bottom plate 10 through the long connecting rod 80, and the crossbeam 20 is provided with a through hole 201 through which the long connecting rod 80 passes. The long connecting rod 80 can bear the reaction force of the pulling force acting on the thermocouple 1, and plays a supporting role, and the long connecting rod 80 can also play a guiding and limiting role for the linear movement of the crossbeam 20 when the thermocouple 1 is removed. Specifically, the number of the long connecting rods 80 is two, and the two long connecting rods 80 are symmetrically arranged with the first opening hole 102 of the bottom plate 10 as the center, and the diameter of the through hole of the crossbeam 20 is greater than the diameter of the long connecting rod 80, so as to improve the smoothness of the linear movement of the crossbeam 20.

[0034] The screw rod 90 is connected with the side of the first mounting plate 30 away from the crossbeam 20, and the screw rod 90 is connected with the handle nut 60. Rotating the handle nut 60 drives the screw rod 90 and the crossbeam 20 to move linearly, and the crossbeam 20 pushes the boss 13 to pull out the thermocouple 1. That is, when the thermocouple 1 needs to be removed, the handle nut 60 is rotated, and the handle can form a force arm to amplify the pulling force. Then, the amplified force produces a linear movement force on the screw rod 90, and then the screw rod 90 transmits the linear movement force to the crossbeam 20 through the first mounting plate 30 and the short connecting rod 70 connected with the screw rod 90, so as to drive the crossbeam 20 to have a linear movement trend. Then, the crossbeam 20 pushes the boss 13 closely attached to the crossbeam 20, so as to exert an outward pulling force on the thermocouple 1 to remove the thermocouple 1.

[0035] Specifically, a gasket 50 is arranged between the handle nut 60 and the second mounting plate 40, so as to reduce the friction.

[0036] In the case where the embodiments do not conflict with each other, at least part of the technical solutions in each embodiment can be recombined to form the essential technical solutions of the utility model, and the embodiments can also be mutually referenced or contained.

[0037] The technical principle of the utility model is described above in combination with specific embodiments, but it should be noted that the above description is only for explaining the principle of the utility model and cannot be interpreted as a specific limitation on the protection scope of the utility model in any way. Based on the explanation here, other specific embodiments or equivalent substitutions of the utility model that can be thought of by those skilled in the art without creative labor will all fall within the protection scope of the utility model.

Claims

1. A thermocouple dismounting tool for a kettle reactor, characterized in that, The utility model relates to a heat -couple installation device, including: The bottom plate (10) is equipped with the first opening (102) that heat couple (1) passes, is equipped with bolt hole (101) around first opening (102), and the bolt hole (101) at least with the fixed bolt of partial mounting flange corresponds; Beam (20) is close to the boss (13) of heat couple (1), and beam (20) is equipped with the second opening (202) that heat couple (1) passes, and the center line of second opening (202) is aligned with the center line of first opening (102); First mounting plate (30) is equipped in the side of beam (20) towards boss (13), and first mounting plate (30) is fixedly connected with beam (20) through short connecting rod (70); Second mounting plate (40) is equipped in the side of first mounting plate (30) away from beam (20), and second mounting plate (40) is fixedly connected with bottom plate (10) through long connecting rod (80), and the beam (20) is equipped with the through -hole (201) that long connecting rod (80) passes through; Screw rod (90) is connected with the side of first mounting plate (30) away from beam (20), and screw rod (90) is connected with handle nut (60), and rotating handle nut (60) drives screw rod (90) and beam (20) linear movement, and the beam (20) pushes boss (13) and pulls out heat couple (1).

2. A thermowell installation and removal tool for a kettle reactor as defined in claim 1, wherein: The length of the short connecting rod (70) is greater than or equal to the length of the transition portion (12) of the heat couple (1).

3. A thermowell installation tool for a kettle reactor as defined in claim 2, characterized in that: The number of the short connecting rod (70) is two, and the two short connecting rods (70) are symmetrically arranged with the second opening (202) of the beam (20) as the center.

4. The thermowell installation tool for a tank reactor according to claim 1, wherein: The size of the second opening (202) is smaller than the size of the first opening (102).

5. The thermowell installation tool for a tank reactor according to claim 1, wherein: The number of the long connecting rod (80) is two, and the two long connecting rods (80) are symmetrically arranged with the first opening (102) of the bottom plate (10) as the center, and the hole diameter of the through hole (201) of the beam (20) is greater than the diameter of the long connecting rod (80).

6. A thermowell installation tool for a kettle reactor as defined in claim 1, wherein: The gasket (50) is arranged between the handle nut (60) and the second mounting plate (40).

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