Pressure relief structure of reaction kettle

Abstract

The utility model provides a pressure relief structure of a reaction kettle, which relates to the technical field of auxiliary components of reaction kettles and comprises a pressure relief sleeve, a screw is rotatably connected to the inner wall of the upper end of the pressure relief sleeve through a bearing, a worm gear is fixedly sleeved at the upper end of the screw, a threaded sleeve is sleeved outside the lower end of the screw in a threaded manner, and a mounting plate is fixedly connected to the lower end of the threaded sleeve. A pressure adjusting mechanism is arranged at the lower end of the mounting plate and comprises a pressure sensor, the sealing performance of the reaction kettle can be effectively guaranteed in a non-pressure-relief state through the pressure adjusting mechanism, gas leakage is prevented, and the pressure of the reaction kettle can be adjusted according to the pressure requirement during processing of the reaction kettle. The extrusion force of mutual contact of the conical sealing block and the annular sealing block is automatically adjusted, and when the internal pressure of the reaction kettle is greater than a preset value, the conical sealing block is jacked up by the air pressure, so that the air is filtered by the activated carbon filter screen and then discharged, the pollution to the environment is reduced, the requirements under different working conditions are met, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to reaction kettle auxiliary component technical field especially relates to a reaction kettle's pressure -relief structure. BACKGROUND

[0002] Reaction kettle is widely used in petroleum, chemical industry, rubber, pesticide, dye, pharmaceutical and food fields, is used to complete vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and other process pressure vessel, for example reactor, reaction pot, decomposition pot, polymerization kettle etc.;Material quality has carbon manganese steel, stainless steel, zirconium, nickel base (hastelloy, monel, inco nickel) alloy and other composite materials, the reaction kettle is in use, the material in the reaction kettle will produce certain gas, make the pressure in the kettle body become big, the existing reaction kettle pressure -relief structure is inconvenient to use, part only has pressure -relief function, cannot better adjust pressure balance value, poor applicability.

[0003] Such as a kind of reaction kettle's pressure -relief structure of Chinese patent document publication (announcement number: CN220969074U), this patent although through kettle body interior pressure will push rubber head, rubber head pushes connecting column, connecting column pushes limit disc to overcome spring elasticity and moves upwards, until rubber head enters into cylinder, at this time, gas is entered into cylinder through pressure relief hole, finally is discharged through exhaust hole, when kettle body interior pressure is small, spring resets and pushes limit disc, limit disc pushes connecting column, connecting column pushes rubber head and enters into pressure relief hole, so as to keep pressure balance in kettle body, when needing to adjust balance pressure value, rotate nut, when nut is rotated downward, spring is compressed, pressure balance value becomes big, when nut is rotated upward, spring tends to natural length, pressure balance value becomes small, it is convenient to adjust according to need, strong applicability.The utility model structure is novel, clever, it is convenient to relieve pressure to kettle body, keep pressure balance in kettle body, can carry out balance pressure adjustment simultaneously, strong applicability.

[0004] However, in the actual process of adjusting, when the nut is rotated downward, due to its own limiting effect, it will make the threaded column drive the limit disc to move upwards. At this time, the spring is in a contracted state. However, since the limit disc is fixedly connected with the connecting column, when the limit disc moves upwards, it will inevitably drive the connecting column to move upwards synchronously. The upward movement of the connecting column will in turn drive the rubber head at the lower end to move upwards, thereby making the rubber head disengage from the pressure relief hole. In this way, the gas will directly overflow from the pressure relief hole, and the pressure relief value cannot be adjusted according to the actual needs of the reaction kettle. This makes the pressure relief structure of the reaction kettle have certain limitations in actual application, and cannot meet the demand for accurate adjustment of the internal pressure of the reaction kettle under different working conditions. In some process that requires high pressure control, this inability to accurately adjust the pressure relief value may have adverse effects on production safety and product quality. SUMMARY

[0005] The utility model discloses a pressure relief structure of a reaction kettle, which can accurately adjust the pressure relief value according to the use requirement of the reaction kettle, thereby avoiding the adverse effect on the product processing quality.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of pressure relief structure of reaction kettle, including pressure relief sleeve, the upper end inner wall of the pressure relief sleeve is rotatably connected with screw rod by bearing, the upper end of the screw rod is fixedly sleeved with worm wheel, the lower end outer thread of the screw rod is sleeved with threaded sleeve, the lower end of the threaded sleeve is fixedly connected with mounting plate;

[0008] The lower end of the mounting plate is provided with pressure regulating mechanism, and pressure regulating mechanism includes pressure sensor, the upper end of the pressure sensor is fixedly installed with the lower end of the mounting plate, the lower end of the pressure sensor is fixedly connected with movable column, the outer movable sleeve of the movable column is sleeved with guide sleeve, the lower end of the movable column is fixedly connected with support spring, one end of the support spring is fixedly connected with the inner bottom wall of the guide sleeve, the lower end of the guide sleeve is fixedly connected with conical sealing block.

[0009] Preferably, the upper end of the conical sealing block is fixedly connected with the guide rod that is symmetrically distributed, one end of the guide rod penetrates and extends to the upper of the mounting plate.

[0010] Preferably, the inner bottom wall of the pressure relief sleeve is fixedly connected with annular sealing block, the outer portion of the annular sealing block is in contact with the inner wall of the pressure relief sleeve, the upper end inner wall of the annular sealing block is in contact with the outer portion of the conical sealing block.

[0011] Preferably, the inner wall of the pressure relief sleeve is provided with the limit sliding slot that is symmetrically distributed, the inner wall of the limit sliding slot is slidably connected with limit sliding block, and the opposite surfaces of the two limit sliding blocks are fixedly connected with the outer portion of the threaded sleeve.

[0012] Preferably, the upper end of the pressure relief sleeve is fixedly installed with servo motor, the output shaft of the servo motor is fixedly installed with worm gear through shaft coupling, and the outer surface of the worm gear is in mesh with the tooth surface of the worm wheel.

[0013] Preferably, the outer portion of the pressure relief sleeve is fixedly connected with exhaust square tube, and the upper end of the exhaust square tube is movably inserted with activated carbon filter screen.

[0014] Preferably, the lower end of the pressure relief sleeve is fixedly connected with connecting pipe, and the lower end of the connecting pipe is fixedly sleeved with flange.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a pressure regulating mechanism, realized the sealing of the reaction kettle under the non pressure relief state can be effectively guaranteed, prevent gas leakage, and according to the pressure need when the reaction kettle processes, the extrusion force of automatic adjustment conical sealing block and annular sealing block mutual contact, when the internal pressure of reaction kettle is greater than the preset value, the gas pressure will lift the conical sealing block, make its gas discharge after filtering through activated carbon filter screen, reduce the pollution to the environment, and then satisfy the demand under different working conditions, improve the effect of product quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a reaction kettle's pressure relief structure's main body structure schematic diagram for the utility model provides a reaction kettle's pressure relief structure's pressure relief sleeve structure perspective view for the utility model provides a reaction kettle's pressure relief structure's threaded sleeve structure perspective view for the utility model provides a reaction kettle's pressure relief structure's movable column structure perspective view.

[0018] Figure 2 The utility model provides a reaction kettle's pressure relief structure's pressure relief sleeve structure perspective view for the utility model provides a reaction kettle's pressure relief structure's threaded sleeve structure perspective view for the utility model provides a reaction kettle's pressure relief structure's movable column structure perspective view.

[0019] Figure 3 The utility model provides a reaction kettle's pressure relief structure's threaded sleeve structure perspective view for the utility model provides a reaction kettle's pressure relief structure's movable column structure perspective view.

[0020] Figure 4 The utility model provides a reaction kettle's pressure relief structure's movable column structure perspective view.

[0021] Legend: 1, pressure relief sleeve;2, screw;3, worm wheel;4, threaded sleeve;5, mounting plate;6, pressure sensor;61, movable column;62, guide sleeve;63, support spring;64, conical sealing block;65, guide rod;66, annular sealing block;67, limit sliding groove;68, limit sliding block;69, servo motor;610, worm;611, exhaust square tube;612, activated carbon filter screen;613, connecting pipe;614, flange. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by the ordinary skilled in the art without creative labor based on the embodiments in the utility model belong to the range protected by the utility model.

[0023] In order to facilitate understanding of the utility model, the utility model will be described more fully below in conjunction with relevant, given several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described in the paper, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0024] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is described as being "connected" or "coupled" to another element, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] Embodiments

[0027] As shown in Figures 1-4 The utility model provides a kind of technical scheme: a kind of pressure relief structure of reaction kettle, including pressure relief sleeve 1, the upper end inner wall of pressure relief sleeve 1 is rotatably connected with screw rod 2 by bearing, pressure relief sleeve 1 is made of high-strength pressure-resistant material, its upper end inner wall is rotatably connected with screw rod 2 by high-precision bearing, ensure the stability and fluency of screw rod 2 rotation.

[0028] The upper end of screw rod 2 is fixedly sleeved with worm wheel 3, the lower end outer thread of screw rod 2 is sleeved with threaded sleeve 4, the lower end of threaded sleeve 4 is fixedly connected with mounting plate 5, screw rod 2 rotates under the transmission of servo motor 69 through worm 610 and worm wheel 3, to drive threaded sleeve 4 to move up and down, realize the height adjustment of pressure regulating mechanism, to adjust the pressure balance value in reaction kettle further.

[0029] The lower end of mounting plate 5 is provided with pressure regulating mechanism, and the pressure regulating mechanism includes pressure sensor 6, pressure sensor 6 uses high-precision, high-sensitivity sensor element, can accurately detect the pressure change in reaction kettle.

[0030] The upper end of pressure sensor 6 is fixedly installed with the lower end of mounting plate 5, the lower end of pressure sensor 6 is fixedly connected with movable column 61, movable column 61 is movably sleeved with guide sleeve 62 outside, movable column 61 is made of high-strength alloy steel, with good rigidity and wear resistance, ensure that movable column 61 can freely move up and down in guide sleeve 62.

[0031] The lower end of the movable column 61 is fixedly connected with a supporting spring 63, one end of the supporting spring 63 is fixedly connected with the inner bottom wall of the guide sleeve 62, the supporting spring 63 is made of high-strength spring steel, has good elasticity and fatigue resistance, and the elastic coefficient of the supporting spring 63 is selected according to the adjustment needs of the pressure in the reaction kettle, so as to ensure that sufficient reverse elastic force can be provided.

[0032] The lower end of the guide sleeve 62 is fixedly connected with a conical sealing block 64, the conical sealing block 64 is made of a sealing material resistant to high temperature and corrosion, has a conical shape, is in close contact with the upper end inner wall of the annular sealing block 66, and forms a good sealing effect.

[0033] The upper end of the conical sealing block 64 is fixedly connected with symmetrically distributed guide rods 65, one end of the guide rod 65 penetrates and extends above the mounting plate 5, the guide rod 65 provides a guide for the rising and falling of the conical sealing block 64, and ensures the stability and accuracy of the conical sealing block 64 during movement.

[0034] The inner bottom wall of the pressure relief sleeve 1 is fixedly connected with an annular sealing block 66, the outer part of the annular sealing block 66 is in contact with the inner wall of the pressure relief sleeve 1, the upper end inner wall of the annular sealing block 66 is in contact with the outer part of the conical sealing block 64, when the conical sealing block 64 is lifted, the annular sealing block 66 is separated from the conical sealing block 64, the gas is discharged through the pressure relief sleeve 1 and the exhaust square pipe 611, and when the conical sealing block 64 falls back, the annular sealing block 66 is in close contact with the conical sealing block 64, so as to realize the sealing function.

[0035] The inner wall of the pressure relief sleeve 1 is provided with symmetrically distributed limiting sliding grooves 67, the inner wall of the limiting sliding groove 67 is slidingly connected with limiting sliding blocks 68, the opposite surfaces of the two limiting sliding blocks 68 are fixedly connected with the outer part of the threaded sleeve 4, the limiting sliding groove 67 and the limiting sliding block 68 cooperate to limit the rotation of the threaded sleeve 4, so that the threaded sleeve 4 can only move in the axial direction, and the threaded sleeve 4 can stably move up and down when the screw rod 2 rotates, so as to realize the height adjustment of the pressure adjusting mechanism.

[0036] The upper end of the pressure relief sleeve 1 is fixedly installed with a servo motor 69, the output shaft of the servo motor 69 is fixedly installed with a worm 610 through a shaft coupling, the outer surface of the worm 610 is meshed with the tooth surface of the worm wheel 3, the servo motor 69 drives the screw rod 2 to rotate through the transmission of the worm 610 and the worm wheel 3, so as to realize the height adjustment of the threaded sleeve 4 and the pressure adjusting mechanism, and further adjust the pressure balance value in the reaction kettle.

[0037] The outer part of the pressure relief sleeve 1 is fixedly connected with an exhaust square pipe 611, the upper end of the exhaust square pipe 611 is movably inserted with an activated carbon filter screen 612, the exhaust square pipe 611 provides a channel for gas discharge, and the activated carbon filter screen 612 can effectively filter the discharged gas, reducing the pollution to the environment.

[0038] The lower end of the pressure relief sleeve 1 is fixedly communicated with a connecting pipe 613, the lower end of the connecting pipe 613 is externally fixedly sleeved with a flange 614, the connecting pipe 613 provides a channel for the gas in the reaction kettle, so that the gas can smoothly enter the pressure relief sleeve 1 for pressure relief, and the flange 614 ensures the firmness and sealing property of the connection, and prevents gas leakage.

[0039] The working process of the utility model is as follows:

[0040] Step one, first, the connecting pipe 613 is fixedly communicated with the pressure relief hole of the reaction kettle through the flange 614, when adjusting, the servo motor 69 is started to drive the worm 610 to rotate clockwise, the rotation of the worm 610 drives the screw rod 2 to rotate through the meshed worm wheel 3, the rotation of the screw rod 2 is limited and matched with the limiting sliding groove 67 and the limiting sliding block 68, so that the threaded sleeve 4 drives the mounting plate 5 to stably descend and move, the descending movement of the mounting plate 5 drives the movable column 61 to extrude the supporting spring 63 through the pressure sensor 6, the reverse elastic force of the supporting spring 63 is monitored through the pressure sensor 6, when the reverse elastic force of the supporting spring 63 reaches the value corresponding to the appropriate pressure value set, the work of the servo motor 69 is stopped, at this time, the pressure in the reaction kettle and the reverse elastic force of the supporting spring 63 reach the balanced state, so that the accurate adjustment of the pressure in the reaction kettle is realized;

[0041] Step two, when the internal pressure of the reaction kettle exceeds the preset value during processing, at this time, the pressure of the gas will overcome the elastic force of the supporting spring 63, so that the conical sealing block 64 is lifted up, the ascending movement of the conical sealing block 64 is stably ascended through the cooperation of the guide rod 65, and is separated from the annular sealing block 66, at this time, the gas enters the pressure relief sleeve 1 and is filtered through the activated carbon filter screen 612 in the exhaust square pipe 611 and is discharged, when the gas is discharged, at this time, the air pressure is reduced, the elastic force of the supporting spring 63 drives the conical sealing block 64 to descend and reset again, and cooperates with the annular sealing block 66 to realize contact sealing.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure relief structure for a reaction vessel, comprising a pressure relief sleeve (1), characterized in that: The upper inner wall of the pressure relief sleeve (1) is rotatably connected to a screw (2) via a bearing. A worm gear (3) is fixedly sleeved on the upper end of the screw (2). A threaded sleeve (4) is threaded on the lower end of the screw (2). A mounting plate (5) is fixedly connected to the lower end of the threaded sleeve (4). The lower end of the mounting plate (5) is provided with a pressure regulating mechanism, and the pressure regulating mechanism includes a pressure sensor (6). The upper end of the pressure sensor (6) is fixedly installed with the lower end of the mounting plate (5). The lower end of the pressure sensor (6) is fixedly connected with a movable column (61). A guide sleeve (62) is movably sleeved on the outside of the movable column (61). A support spring (63) is fixedly connected to the lower end of the movable column (61). One end of the support spring (63) is fixedly connected to the inner bottom wall of the guide sleeve (62). A conical sealing block (64) is fixedly connected to the lower end of the guide sleeve (62).

2. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: The upper end of the conical sealing block (64) is fixedly connected to symmetrically distributed guide rods (65), one end of which passes through and extends above the mounting plate (5).

3. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: The inner bottom wall of the pressure relief sleeve (1) is fixedly connected to an annular sealing block (66). The outer side of the annular sealing block (66) is in contact with the inner wall of the pressure relief sleeve (1), and the upper inner wall of the annular sealing block (66) is in contact with the outer side of the conical sealing block (64).

4. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: The inner wall of the pressure relief sleeve (1) is provided with symmetrically distributed limiting grooves (67), and the inner wall of the limiting grooves (67) is slidably connected to limiting sliders (68). The opposing surfaces of the two limiting sliders (68) are fixedly connected to the outside of the threaded sleeve (4).

5. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: A servo motor (69) is fixedly installed at the upper end of the pressure relief sleeve (1). The output shaft of the servo motor (69) is fixedly installed with a worm (610) through a coupling. The outer surface of the worm (610) meshes with the tooth surface of the worm wheel (3).

6. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: The pressure relief sleeve (1) is fixedly connected to an exhaust square pipe (611), and an activated carbon filter (612) is movably inserted into the upper end of the exhaust square pipe (611).

7. The pressure relief structure of a reaction vessel according to claim 1, characterized in that: The lower end of the pressure relief sleeve (1) is fixedly connected to a connecting pipe (613), and a flange (614) is fixedly sleeved on the lower end of the connecting pipe (613).

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