Testing device for breather valve of inner cylinder of normal-pressure storage tank

Abstract

The utility model discloses a normal-pressure storage tank inner cylinder breather valve testing device, which relates to the technical field of breather valve testing and comprises a breather valve body, a fixing assembly is fixedly connected to the bottom of the breather valve body, one end of the fixing assembly is fixedly connected with a breather valve pressure tapping pipe, and the other end of the fixing assembly is fixedly connected with a pressure gauge. One side of the breather valve pressure tapping pipe is in threaded connection with a stop valve assembly, one side of the stop valve assembly is fixedly connected with a fastener, one side of the breather valve body is in threaded connection with a blow-off valve, and the inner side wall of the breather valve body is fixedly connected with a plugging assembly. According to the utility model, through the arrangement of the stop valve assembly and the blow-off valve, the effect of non-dismantling test is achieved during use, the inner cylinder breather valve can be subjected to reliability test in a put-in-use state, the operation is simple, the test does not need to be carried out after the operation state is released off line, the accident risk caused by the off-line test of the storage tank breather valve is reduced, and the reliability of the storage tank breather valve is improved. Test effect is good and operation is safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breathing valve test technical field, concretely is a normal pressure storage tank inner tube breathing valve testing arrangement. BACKGROUND

[0002] The device is mainly used for on-line testing of the breathing valve in the normal pressure low-temperature liquid flat-bottom storage tank inner tube, testing whether the operation is normal, ensuring the availability of the breathing valve, reducing the accident risk caused by off-line testing of the breathing valve, and the normal pressure low-temperature liquid flat-bottom storage tank inner tube breathing valve in the domestic stage does not have an on-line testing function, and can only be tested after being off-line and out of operation state, increasing the accident risk caused by off-line testing of the breathing valve of the storage tank.

[0003] The utility model discloses a kind of breathing valve testings, including connection port, the connection port includes the first port and the second port for connecting the breathing valve to be tested;Negative pressure testing structure connected to the first port, the negative pressure testing structure includes sequentially communicated vacuum pump, negative pressure tank, first valve, second valve, first pressure detection device for detecting the negative pressure in pipeline is arranged on the communication pipeline between the first valve and second valve;Positive pressure testing structure connected to the second port, the positive pressure testing structure includes sequentially communicated compressed air tank, third valve and fourth valve, second pressure detection device for detecting the positive pressure in pipeline is arranged on the communication pipeline between the third valve and fourth valve.The structure is simple, and manufacturing cost is low and test efficiency.

[0004] The above technical scheme in use:

[0005] (1) the normal pressure low-temperature liquid flat-bottom storage tank inner tube breathing valve does not have on-line testing function, and can only be tested after being off-line and out of operation state, increasing the accident risk caused by off-line testing of the breathing valve of the storage tank;

[0006] (2) the sealing of the existing testing device also has certain problem.If the sealing of testing device is not good, gas leakage can occur in the testing process, resulting in inaccurate test result.

[0007] To solve the above problems, the utility model provides a normal pressure storage tank inner tube breathing valve testing arrangement. UTILITY MODEL CONTENTS

[0008] (1) the technical problem solved

[0009] The utility model provides a normal pressure storage tank inner tube breathing valve testing arrangement, the utility model discloses can carry out the test to breathing valve body through stop valve subassembly and blow -off valve etc., makes the inner tube breathing valve reliable test under the state of putting into use, and filters and blocks breathing valve body through filter screen etc., avoids the accumulation of dust and other impurities in breathing valve body use's difficult, thereby solve the problem in prior art.

[0010] (II) Technical solutions

[0011] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a normal pressure storage tank inner tube breathing valve testing arrangement, including breathing valve body, the bottom fixedly connected with fixed component of breathing valve body, one end fixedly connected with breathing valve pressure tapping pipe of fixed component, one side screwd with stop valve subassembly of breathing valve pressure tapping pipe, one side fixedly connected with fastener of stop valve subassembly, one side screwd with blow -off valve of breathing valve body, the inner wall fixedly connected with plugging component of breathing valve body, the top fixedly connected with limit spring of one side of plugging component, the inner wall fixedly connected with filter screen of breathing valve body.

[0012] In some embodiments, the fixed component includes a first flange plate fixedly connected to the bottom of the breathing valve body, a bolt screwedly connected to the top of the first flange plate, and a second flange plate screwedly connected to one side of the bolt, achieving the effect of limiting fixation.

[0013] In some embodiments, the stop valve subassembly includes a stop valve screwedly connected to one side of the breathing valve body, and a valve screwedly connected to one side of the stop valve, achieving the effect of controlling the sealing plate.

[0014] In some embodiments, the plugging component includes a connecting column fixedly connected to the inner wall of the breathing valve body, and a limit valve plate slidingly connected to one side of the connecting column, achieving the effect of slidingly connecting the limit valve plate.

[0015] In some embodiments, the stop valve subassembly is internally fixedly connected with a double-pass pipeline, the inner wall of the double-pass pipeline is inserted with a sealing plate, one side of the sealing plate is fixedly connected with a sealing rubber strip, and the effect of sealing the gap is achieved.

[0016] In some embodiments, the bottom of the breathing valve body is screwedly connected with a limiting piece, and the material of the breathing valve body is steel, achieving the effects of not being easy to corrode and being durable.

[0017] (III) Advantages

[0018] Compared with the prior art, the utility model provides a normal pressure storage tank inner tube breathing valve testing arrangement, which has the following advantages:

[0019] 1. The atmospheric tank inner cylinder breather valve test device, through the setting of the stop valve assembly and the blow-off valve, achieves the effect of not disassembling the test during use, enables the inner cylinder breather valve to be tested in a service state, is simple to operate, does not need to be tested after being offline and removed from the operation state, reduces the accident risk caused by offline test of the tank breather valve, has good test effect, and is safe and reliable in operation.

[0020] 2. The atmospheric tank inner cylinder breather valve test device, through the setting of the filter screen and the plugging assembly, achieves the effects of plugging and filtering during use, the plugging assembly can form an effective sealing structure, prevents gas leakage, reduces test errors caused by poor sealing, provides double protection for obtaining accurate test results, and the filter screen can avoid the accumulation of dust and impurities to affect the use effect of the breather valve body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of a breather valve body of the utility model;

[0022] Figure 2 It is a schematic view of a stop valve of the utility model;

[0023] Figure 3 It is a schematic view of a limiting valve of the utility model;

[0024] Figure 4 It is a schematic view of a sealing plate of the utility model.

[0025] In the drawings:

[0026] 1, the breather valve body; 2, the fixed assembly; 201, the first flange plate; 202, the bolt; 203, the second flange plate; 3, the breather valve pressure tapping pipe; 4, the stop valve assembly; 401, the stop valve; 402, the valve; 5, the fastener; 6, the blow-off valve; 7, the plugging assembly; 701, the connecting column; 702, the limiting valve plate; 8, the limiting spring; 9, the filter screen; 10, the double-way pipeline; 11, the sealing plate; 12, the sealing rubber strip; 13, the limiting piece. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that all directionality indications in the embodiments of the present application are only used to explain the relative positional relationship, motion condition and the like between components in a certain posture, and if the certain posture changes, the directionality indications also change accordingly.

[0029] In the present application, unless specifically defined and limited otherwise, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0031] The atmospheric low-temperature liquid flat-bottom storage tank inner cylinder breather valve does not have an online test function, and can only be tested offline after the running state is removed, which increases the accident risk caused by the off-line test of the breather valve of the storage tank; the existing test device also has certain problems in sealing. If the sealing of the test device is not good, gas leakage may occur during the test, resulting in inaccurate test results.

[0032] In the related art, by setting the stop valve assembly and the blow-off valve, the effect of not removing the test is achieved during use, so that the inner cylinder breather valve can be tested for reliability in the service state, the operation is simple, and the test does not need to be performed after the running state is removed, which reduces the accident risk caused by the off-line test of the breather valve of the storage tank, has good test effect, and is safe and reliable in operation; by setting the filter screen and the plugging assembly, the effects of plugging and filtering are achieved during use, the plugging assembly can form an effective sealing structure to prevent gas leakage, reduces the test error caused by poor sealing, provides double protection for obtaining accurate test results, and the filter screen can avoid the accumulation of dust and impurities to affect the use effect of the breather valve body.

[0033] To solve the problems in the related art to some extent, the embodiment of the present application provides a normal-pressure storage tank inner cylinder breather valve testing device, the breather valve body 1 is fixed on the breather valve pressure-taking pipe 3 through the bolt 202, the first flange plate 201 and the second flange plate 203, the stop valve assembly 4 is fixed on one side of the breather valve body 1 through the fastener 5, the breather valve body 1 is fixed and strengthened through the limiting piece 13, so that damage does not occur during use, during use of the breather valve body 1, the stop valve 401 is controlled through the valve 402, the valve 402 drives the sealing plate 11 to move downward, so that the sealing plate 11 forms unidirectional flow in the double-pass pipeline 10, the sealing rubber strip 12 can seal the gap of the sealing plate 11 in the double-pass pipeline 10, so that the gas in the double-pass pipeline 10 of the stop valve 401 cannot enter the inside of the breather valve body 1, then the blow-off valve 6 is used to discharge the pressure in the breather valve pressure-taking pipe 3 between the stop valve 401 and the upper part of the breather valve body 1, at this time, if the breather valve body 1 is good, the limiting valve plate 702 at the bottom of the limiting spring 8 is automatically opened, which can prove that the state of the breather valve body 1 is normal, and if the gas is not automatically discharged, it is proved that the breather valve body 1 is damaged and cannot work normally.

[0034] The present application is described below in conjunction with the drawings and specific embodiments:

[0035] In conjunction with Figures 1-4 , the embodiment of the present application provides a normal-pressure storage tank inner cylinder breather valve testing device, which comprises a breather valve body 1, the bottom of the breather valve body 1 is fixedly connected with a fixing assembly 2, through the setting of the fixing assembly 2, the breather valve body 1 can be fixed on the top of the breather valve pressure-taking pipe 3, thereby achieving the effect of fixation, one end of the fixing assembly 2 is fixedly connected with the breather valve pressure-taking pipe 3, one side of the breather valve pressure-taking pipe 3 is threadedly connected with a stop valve assembly 4, through the setting of the stop valve assembly 4 and the blow-off valve 6, the effect of not removing the test is achieved during use, so that the inner cylinder breather valve can be tested for reliability in the state of being put into use, the operation is simple, and it is not necessary to test again after being offline and removed from the running state, thereby reducing the accident risk caused by offline testing of the storage tank breather valve, the test effect is good, and the operation is safe and reliable, thereby achieving the effects of safety and simplicity, one side of the stop valve assembly 4 is fixedly connected with a fastener 5, one side of the breather valve body 1 is threadedly connected with a blow-off valve 6, the inner side wall of the breather valve body 1 is fixedly connected with a plugging assembly 7, the top of one side of the plugging assembly 7 is fixedly connected with a limiting spring 8, the inner side wall of the breather valve body 1 is fixedly connected with a filter screen 9, through the setting of the filter screen 9 and the plugging assembly 7, the effects of plugging and filtering are achieved during use, the plugging assembly 7 can form an effective sealing structure to prevent gas leakage, thereby reducing the test error caused by poor sealing and providing double protection for obtaining accurate test results, the filter screen 9 can avoid the accumulation of dust and impurities to affect the use effect of the breather valve body 1, thereby achieving the effect of plugging.

[0036] In some embodiments, the fixing assembly 2 comprises a first flange plate 201 fixedly connected to the bottom of the breathing valve body 1, the top of the first flange plate 201 is threadedly connected with a bolt 202, and the bolt 202 is threadedly connected with a second flange plate 203 on one side, so that the first flange plate 201 and the second flange plate 203 can be fixed through the bolt 202, thereby achieving the effect of connection and fixation.

[0037] In some embodiments, the stop valve assembly 4 comprises a stop valve 401 threadedly connected to one side of the breathing valve body 1, and the stop valve 401 is threadedly connected with a valve 402 on one side, so that the limiting valve plate 702 can be controlled through the valve 402, thereby achieving the effect of control.

[0038] In some embodiments, the plugging assembly 7 comprises a connecting column 701 fixedly connected to the inner side wall of the breathing valve body 1, and the connecting column 701 is slidably connected with a limiting valve plate 702 on one side, so that the limiting valve plate 702 can be connected and fixed through the connecting column 701, thereby achieving the effect of connection and fixation.

[0039] In some embodiments, the stop valve assembly 4 is fixedly connected with a double-pass pipeline 10 inside, the inner side wall of the double-pass pipeline 10 is inserted with a sealing plate 11, and the sealing plate 11 is fixedly connected with a sealing rubber strip 12 on one side, so that the gap between the sealing plate 11 and the breathing valve body 1 can be sealed through the sealing rubber strip 12, thereby achieving the effect of sealing.

[0040] In some embodiments, the bottom of the breathing valve body 1 is threadedly connected with a limiting piece 13, and the material of the breathing valve body 1 is steel, so that the breathing valve body 1 can be fixedly connected through the limiting piece 13, thereby achieving the effect of fixed connection.

[0041] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0042] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of the technical solutions appears contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0043] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A test device for a breather valve in an inner cylinder of an atmospheric pressure storage tank, comprising a breather valve body (1), characterized in that: A fixing component (2) is fixedly connected to the bottom of the breathing valve body (1). A breathing valve pressure tapping tube (3) is fixedly connected to one end of the fixing component (2). A shut-off valve assembly (4) is threadedly connected to one side of the breathing valve pressure tapping tube (3). A fastener (5) is fixedly connected to one side of the shut-off valve assembly (4). A purge valve (6) is threadedly connected to one side of the breathing valve body (1). A sealing component (7) is fixedly connected to the inner wall of the breathing valve body (1). A limit spring (8) is fixedly connected to the top of one side of the sealing component (7). A filter screen (9) is fixedly connected to the inner wall of the breathing valve body (1).

2. The test device for the breather valve of the inner cylinder of an atmospheric pressure storage tank according to claim 1, characterized in that: The fixing component (2) includes a first flange (201) fixedly connected to the bottom of the breather valve body (1), a bolt (202) is threadedly connected to the top of the first flange (201), and a second flange (203) is threadedly connected to one side of the bolt (202).

3. The test device for the breather valve of the inner cylinder of an atmospheric pressure storage tank according to claim 1, characterized in that: The shut-off valve assembly (4) includes a shut-off valve (401) threaded to one side of the breather valve body (1), and a valve (402) is threaded to one side of the shut-off valve (401).

4. The test device for the breather valve of the inner cylinder of an atmospheric pressure storage tank according to claim 1, characterized in that: The sealing assembly (7) includes a connecting column (701) fixedly connected to the inner wall of the breathing valve body (1), and a limit valve plate (702) is slidably connected to one side of the connecting column (701).

5. The testing device for the breather valve of the inner cylinder of an atmospheric pressure storage tank according to claim 1, characterized in that: The shut-off valve assembly (4) is internally fixedly connected to a double-pass pipe (10), and a sealing plate (11) is inserted into the inner wall of the double-pass pipe (10). A sealing strip (12) is fixedly connected to one side of the sealing plate (11).

6. The test device for the breather valve of the inner cylinder of an atmospheric pressure storage tank according to claim 1, characterized in that: The bottom of the breathing valve body (1) is threadedly connected to a limiting member (13), and the breathing valve body (1) is made of steel.

Images