Synthesis kettle convenient for pressure test

Abstract

The utility model discloses a synthesis kettle convenient for pressure test. A pipe orifice of the synthesis kettle is connected with a pressure release valve through a middleware; the middle piece comprises a butterfly valve body and an extending body, the butterfly valve body is provided with a butterfly valve plate capable of being opened and closed, and the extending body is transversely provided with a through hole. The middleware is detachably connected with a testing assembly, an air pipe of the testing assembly penetrates through the through hole, one end, extending into the main body, of the air pipe is provided with an open hole, and the other end of the air pipe extends to be connected with the output end of an external air pressure adjusting device; and the synthesis kettle can be opened only when the butterfly valve plate of the butterfly valve main body is in an open state. Different from the conventional mode of pressure boosting detection on the reaction kettle, the device can directly and quickly perform pressure testing on the pressure release valve independently after the gas channel is cut off through the butterfly valve main body, so that the required pressure boosting time is shorter, the pressure release valve can be maintained and checked in a shorter time, and the normal use of the reaction kettle cannot be influenced by the arrangement of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to synthetic kettle structure technical field, concretely is a synthetic kettle convenient for pressure test. BACKGROUND

[0002] For security consideration, the reaction kettle needs to set the pressure relief valve at the pipe mouth, and can carry out pressure relief through the pressure relief valve when the pressure in the reaction kettle rises to more than the threshold value, and for security consideration, the pressure relief valve needs to be maintained regularly and needs to be tested to ensure that it can normally carry out pressure relief operation, because the volume of the reaction kettle is larger, the time required when carrying out pressure test is longer, and even if the pressure relief valve is disassembled and tested on a smaller equipment, the work is more complex, and the efficiency is lower. UTILITY MODEL CONTENTS

[0003] To solve the problem that the time required when the conventional synthetic kettle carries out pressure test is longer, the utility model provides a synthetic kettle convenient for pressure test.

[0004] The utility model technical scheme is as follows:

[0005] A synthetic kettle convenient for pressure test, the pipe mouth of the synthetic kettle is connected with the pressure relief valve through the intermediate piece, the intermediate piece includes the butterfly valve body and the extension body, the butterfly valve body is provided with the butterfly valve plate that can be opened and closed, and the extension body is provided with the through hole in the transverse direction.

[0006] The butterfly valve body is provided with the butterfly valve plate that can be opened and closed, and the extension body is provided with the through hole in the transverse direction.

[0007] The intermediate piece is detachably connected with the test assembly, the gas pipe of the test assembly passes through the through hole, one end of the gas pipe in the extension body is provided with the opening, and the other end extends to the output end of the external gas pressure adjusting device.

[0008] The synthetic kettle can be opened only when the butterfly valve plate of the butterfly valve body is in the opened state.

[0009] Different from the conventional way of increasing the pressure of the reaction kettle as a whole, the device can directly and quickly test the pressure of the pressure relief valve after cutting off the gas passage through the butterfly valve body, which facilitates maintenance and inspection, and the required time is shorter.

[0010] The detachable connection of the gas pipe is realized by the following manner: a fixed part is arranged on the outside of the gas pipe, a connecting part is arranged at the position of the through hole of the extension body, and the connecting part and the fixed part are connected through bolts.

[0011] In order to facilitate reading of the pressure value, a tee pipe is arranged between the gas pipe and the output end of the gas pressure adjusting device, and a pressure gauge is arranged at one opening of the tee pipe.

[0012] In order to ensure the normal gas flow, the tee pipe is provided with a one-way valve between the gas pressure regulating device output end.

[0013] In order to facilitate understanding of the stroke of the pressure relief valve disc, the gas pipe is fixedly connected with a distance measuring unit at one end inside the extension body, and the distance measuring unit is located directly below the pressure relief valve disc.

[0014] As a preferred scheme, the gas pressure regulating device can only be opened when the butterfly valve plate of the butterfly valve body is in a closed state.

[0015] The butterfly valve plate of the butterfly valve body is driven by a servo motor, and the servo motor is connected to a controller through a CAN bus, and the controller is electrically connected to the gas pressure regulating device and the total switch of the reaction kettle through a selection switch.

[0016] As a preferred scheme, the butterfly valve plate can cut off the gas passage between the reaction kettle pipe and the pressure relief valve.

[0017] In order to facilitate disassembly and assembly, the butterfly valve body and the extension body are integrally formed.

[0018] In order to avoid affecting normal pressure relief, the pipe cross section of the intermediate part is larger than the pipe of the synthesis kettle and the pressure relief valve.

[0019] The beneficial effects of the present application are: the synthesis kettle for convenient pressure test, on the basis of the existing structure, increases the intermediate structure, by virtue of this structure, the synthesis kettle pipe can be blocked and the pressure test can be carried out through the gas pressure regulating device, so the required time is shorter, the efficiency is higher, and through the setting of the distance measuring unit, the contraction depth of the valve disc of the pressure relief valve can be monitored, and whether it meets the demand can be judged, and it should be noted that the increase of the above-mentioned intermediate part will not affect the normal use of the original equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] The scheme and advantages of the present application will become clear to those skilled in the art by reading the detailed description of the preferred embodiments below. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the present application.

[0021] In the drawings:

[0022] Figure 1 is a cross-sectional structure schematic view of the present application;

[0023] Figure 2 is a cross-sectional structure schematic view of the intermediate part of the present application;

[0024] Figure 3 is a structure schematic view of the intermediate part of the present application;

[0025] Figure 4 It is the structure schematic view of test assembly of the utility model;

[0026] Figure 5 It is the schematic view of opening and closing circuit of butterfly valve feedback control reaction kettle and air pressure adjusting device of the utility model;

[0027] The components represented by the reference numerals in the drawings are:

[0028] 1, pressure relief valve;2, intermediate;21, butterfly valve body;22, butterfly valve plate;23, extension body;24, connecting part;25, through hole;3, test assembly;31, distance measuring unit;32, air pipe;33, fixed part;34, tee;35, pressure gauge;36, check valve;4, reaction kettle pipe. DETAILED DESCRIPTION

[0029] EMBODIMENT

[0030] As Figure 1 shown in a kind of synthesis kettle for facilitating pressure test, different from the mode of direct connection pressure relief valve 1 of conventional, the synthesis kettle pipe of the device is connected pressure relief valve 1 by intermediate 2, and intermediate 2 is provided with through channel to connect pipe and pressure relief valve 1.

[0031] As Figure 2 , 3 The specific structure of the above-mentioned intermediate 2 is that the intermediate 2 includes butterfly valve body 21 and extension body 23, wherein the butterfly valve body 21 is provided with butterfly valve plate 22 that can be opened and closed, and the through channel can be controlled by opening and closing the butterfly valve plate 22, so that the pressure relief valve 1 can be tested separately, and because the cavity space is small, it will not take a long time, and the efficiency will be higher accordingly, and it needs to be noted that, in order to facilitate detection, the extension body 23 is transversely provided with through hole 25, and the existence of through hole 25 facilitates the setting of test assembly 3.

[0032] And in the above structure, in order to facilitate disassembly and assembly, the butterfly valve body 21 and the extension body 23 are integrally formed, when disassembling, two components do not need to be disassembled, and the integrated design can avoid the gap between the two components, which causes the sealing failure.

[0033] After that, as Figure 4As shown, in order to carry out the necessary pressure test, the intermediate 2 is detachably connected with test assembly 3, and the gas pipe 32 of test assembly 3 passes through the through hole 25, and test assembly 3 needs to be sealed with the extension body 23 to ensure the sealing, and the gas pipe 32 is provided with an opening at one end inside the extension body 23 for injecting gas, and the other end extends to the output end of the external gas pressure regulating device, in use, the external gas pressure regulating device needs to be opened, and then the opening can be used to inject gas into the cavity of the test assembly 3, and due to the sealing effect of the butterfly valve plate 22, the pressure test of the pressure relief valve 1 can be directly carried out.

[0034] As can be seen, due to the presence of the butterfly valve plate 22, the above-mentioned pressure test of the pressure relief valve 1 will not be affected by the cavity of the reaction kettle, so that the pressure can be directly carried out in a short time, but due to the presence of the butterfly valve plate 22, it is possible that the pressure relief valve 1 is disabled due to accidental closing, and for safety considerations, in the above structure, the synthesis kettle can only be opened when the butterfly valve plate 22 of the butterfly valve body 21 is in the open state. To ensure that under normal circumstances, the presence of the butterfly valve body 21 and the butterfly valve plate 22 will not affect the normal use of the pressure relief valve 1.

[0035] Moreover, in order to ensure that the test will not be affected by the reaction kettle, the gas pressure regulating device can only be opened when the butterfly valve plate 22 of the butterfly valve body 21 is in the closed state. Then, according to the needs of the above structure, the following way can be used, that is, through the state of the butterfly valve plate 22, the control of the above two components is realized, first, the butterfly valve plate 22 of the butterfly valve body 21 is driven by a servo motor, which is convenient for controlling the stroke and opening and closing the butterfly valve plate 22, and the servo motor is connected to the controller through the CAN bus, which can confirm the position of the butterfly valve plate 22 through the rotation angle of the servo motor, and the controller is electrically connected to the gas pressure regulating device and the general switch of the reaction kettle through the selection switch, as Figure 5 shown, when the general switch of the gas pressure regulating device or the reaction kettle is opened alone, it cannot be opened, but needs to meet the above-mentioned condition that the servo motor is also in the corresponding angle, that is, the butterfly valve plate 22 is in the open or closed corresponding position, and when both conditions are met, the reaction kettle or the gas pressure regulating device can be opened.

[0036] Through the above-mentioned way, which is different from the conventional way of increasing the pressure of the reaction kettle as a whole, after the butterfly valve body 21 cuts off the gas passage, the pressure relief valve 1 can be directly and quickly tested, which is convenient for maintenance and inspection, and the required time is short, and through the setting of the servo motor and the controller, the problem that the pressure relief valve 1 cannot function can be avoided, and the safety is better.

[0037] As a preferred embodiment, as Figure 3 , 4As shown, the gas pipe 32 is detachably connected by setting a fixing part 33 on the outside of the gas pipe 32, setting a connecting part 24 on the extension body 23 at the position of the through hole 25, connecting the connecting part 24 and the fixing part 33 by screwing through, and setting a sealing strip between the connecting part 24 and the fixing part 33 to ensure the sealing effect.

[0038] As a preferred embodiment, in order to read the pressure value conveniently, a three-way pipe 34 is set between the gas pipe 32 and the output end of the gas pressure adjusting device, and a pressure gauge 35 is set on one opening of the three-way pipe 34, so that the current pressure can be known by reading the pressure gauge 35, and then it can be judged whether the pressure relief valve 1 can be normally applied.

[0039] In the above structure, in order to ensure the normal flow of gas, a one-way valve 36 is set between the three-way pipe 34 and the output end of the gas pressure adjusting device.

[0040] On the basis of the above structure, since the opening degree of the pressure relief valve 1 will affect the size of the pressure relief port and then affect the pressure relief effect, in order to know the stroke of the valve disc of the pressure relief valve 1 conveniently, a distance measuring unit 31 is fixedly connected to one end of the gas pipe 32 inside the extension body 23, and the distance measuring unit 31 is located directly below the valve disc of the pressure relief valve 1, and there is no any shielding object between the distance measuring unit 31 and the valve disc of the pressure relief valve 1, so that the opening degree of the pressure relief valve 1 under different pressure conditions can be known by reading the distance measuring unit 31, and then it can be judged whether there is a problem, and the wiring of the distance measuring unit 31 can be led out from the inside of the gas pipe 32, so that it will not affect the sealing effect of the gas pipe 32.

[0041] Finally, in order to avoid affecting the normal pressure relief, the pipe cross section of the intermediate part 2 is larger than the pipe port of the synthesis kettle and the pressure relief valve 1.

Claims

1. A synthesis vessel that facilitates pressure testing, characterized in that, The pipe opening of the synthesis kettle is connected with the pressure relief valve (1) through the intermediate piece (2); The intermediate piece (2) comprises a butterfly valve body (21) and an extension body (23), the butterfly valve body (21) is provided with a butterfly valve plate (22) capable of being opened and closed, and the extension body (23) is transversely provided with a through hole (25); The intermediate piece (2) is detachably connected with a test assembly (3), and a gas pipe (32) of the test assembly (3) passes through the through hole (25), one end of the gas pipe (32) inside the extension body (23) is provided with an opening, and the other end extends to be connected with the output end of the external gas pressure adjusting device; The synthesis kettle can only be opened when the butterfly valve plate (22) of the butterfly valve body (21) is in the open state.

2. The synthesis vessel of claim 1, wherein, An external sleeve knot of the gas pipe (32) is provided with a fixing part (33), and the extension body (23) is provided with a connecting part (24) at the position of the through hole (25), and the connecting part (24) and the fixing part (33) are connected through bolt penetration.

3. The synthesis vessel of claim 1, wherein, A three-way pipe (34) is arranged between the gas pipe (32) and the output end of the gas pressure adjusting device, and one opening of the three-way pipe (34) is provided with a pressure gauge (35).

4. The synthesis vessel of claim 3, wherein, A one-way valve (36) is arranged between the three-way pipe (34) and the output end of the gas pressure adjusting device.

5. The synthesis vessel of claim 1, wherein, A distance measuring unit (31) is fixedly connected to one end of the gas pipe (32) inside the extension body (23), and the distance measuring unit (31) is located directly below the valve clack of the pressure relief valve (1).

6. The synthesis vessel of claim 1, wherein, The gas pressure adjusting device can only be opened when the butterfly valve plate (22) of the butterfly valve body (21) is in the closed state.

7. The synthesis vessel of claim 6, wherein, The butterfly valve plate (22) of the butterfly valve body (21) is driven by a servo motor, and the servo motor is connected with a controller through a CAN bus, and the controller is electrically connected with the gas pressure adjusting device and the total switch of the reaction kettle through a selection switch.

8. The synthesis vessel of claim 1, wherein, The butterfly valve plate (22) can cut off the gas passage between the pipe opening (4) of the reaction kettle and the pressure relief valve (1).

9. The synthesis vessel of claim 1, wherein, The butterfly valve body (21) and the extension body (23) are integrally formed.

10. The synthesis vessel of claim 1, wherein, The pipe cross section of the intermediate piece (2) is larger than the pipe opening of the synthesis kettle and the pressure relief valve (1).

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