Isolating valve for on-line detection of breather valve of oil tank

Abstract

The utility model discloses an isolating valve for detecting a breather valve of an oil tank on line, and belongs to the field of oil storage. The device comprises a partition bin, one end of the partition bin is sequentially connected with a first sleeve and a first flange, the other end of the partition bin is sequentially connected with a second sleeve and a second flange, and a partition assembly capable of blocking and partitioning all the interior of the partition bin is detachably installed in the partition bin. The first sleeve and / or the second sleeve are / is connected with a pressure detection assembly used for detecting whether the pressure in the partition bin meets a design value or not. The online detection of the breather valve on the oil tank is realized, the trouble that the breather valve needs to be disassembled every time is avoided, and the use is relatively convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of petroleum storage, and specifically relates to a cut-off valve for on-line detection of an oil tank breather valve. BACKGROUND

[0002] The breather valve is a safe and energy-saving product for maintaining the air pressure balance of the oil tank, reducing oil evaporation, and ensuring that the oil tank is not damaged when the pressure is too high or too low. Its principle is to use the weight of the positive and negative pressure valve disc to control the exhaust positive pressure and inhalation negative pressure of the storage tank. According to the "Atmospheric Storage Tank Integrity Management" (GB / T 37327-2019), it is clearly stipulated that the breather valve must be inspected once a year. In addition to annual inspection, the breather valve should also be detected in daily operation to prevent risks, but the off-line detection of the breather valve requires a crane and the cutting out of the storage tank, which is difficult to operate, risky, costly, and has the risk of causing inaccurate pressure setting of the breather valve during transportation. At present, the on-line detection of the breather valve, such as CN201720949619.6, an on-line detection device for an atmospheric storage tank breather valve, uses a positive and negative pressure generator, a portable pressure stabilizing tank, a pressure sensor, a signal amplifier, an A / D converter, and an intelligent analysis system, and sets a pressure relief valve on the portable pressure stabilizing tank to detect the pressure. Its structure is complex; CN202410012335.9, an on-line detection device for the breathing performance of a breather valve, includes a gas source mechanism, a pressure regulating mechanism, a measuring mechanism, and a measuring system. The gas source is preliminarily controlled by a pressure reducing valve, the operating pressure is determined according to the model and grade of the breather valve, the pressure regulating mechanism adjusts the gas source pressure to an appropriate operating pressure, and after the detection device is connected to the breather valve to be detected, a dynamic level is formed, the opening pressure of the breather valve is detected by a second pressure transmitter, the leakage is detected by a flow valve, and the data is sent to a terminal computer for detection. Its structure is complex and the cost is high. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims to solve at least one of the above problems, and provides a cut-off valve for on-line detection of an oil tank breather valve, which comprises a cut-off bin, the cut-off bin is sequentially connected with a first sleeve and a first flange at one end, and is sequentially connected with a second sleeve and a second flange at the other end, a cut-off assembly for completely plugging and cutting off the inside of the cut-off bin is detachably installed in the cut-off bin, and a pressure detection assembly for detecting whether the pressure in the cut-off bin meets the design value is connected to the first sleeve and / or the second sleeve.

[0004] In the above technical solution, the pressure detection assembly comprises a pressure detection pipe and a detection gas pipe, and the pressure detection pipe and the detection gas pipe are arranged on the first sleeve and / or the second sleeve.

[0005] In the above technical solution, a standby gas pipe is further arranged on the first sleeve and / or the second sleeve.

[0006] In the above technical solution, the side wall of the partition bin is connected with a partition seat, the partition assembly comprises a partition plate and a sealing ring, one end of the partition plate is provided with an annular groove corresponding to the end of the first sleeve and / or the second sleeve, the other end is connected with a fixing seat for connecting the partition seat, and the sealing ring is arranged in the annular groove.

[0007] In the above technical solution, the partition seat is provided with a partition opening, the partition seat and the fixing seat are detachably connected, and the partition assembly can enter or come out of the inside of the partition bin through the partition opening.

[0008] In the above technical solution, a connecting rod is arranged between the partition plate and the fixing seat.

[0009] In the above technical solution, the sealing ring is an inflation sealing ring, and the connecting rod or the side wall of the partition bin is provided with an inflation channel in communication with the inflation sealing ring.

[0010] In the above technical solution, a Teflon gasket is connected between the partition seat and the fixing seat.

[0011] The utility model provides a kind of partition valve for the online detection oil tank breather valve, it includes partition bin, first flange, second flange, partition assembly and pressure detection component etc., first flange can be used to connect oil tank, second flange can be used to connect breather valve, when pressure detection component detects that the pressure in partition bin exceeds preset value, the application only needs to insert partition assembly into partition bin, so that partition valve realizes partition function, in this way, the application also realizes the online detection of breather valve on oil tank, eliminates the trouble of disassembling breather valve every time, it is less inconvenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the description of the embodiments of the utility model, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the structure schematic view of partition valve for the online detection oil tank breather valve;

[0014] Figure 2 It is Figure 1 Structure schematic view when along main view direction;

[0015] Figure 3 It is the structure schematic view of partition assembly;

[0016] Figure 4 It isFigure 1 A structural diagram excluding partition components.

[0017] In the diagram: 1. Partition compartment; 11. Partition seat; 12. Partition opening; 13. Arc-shaped compartment; 14. Rectangular compartment; 21. First sleeve; 22. First flange; 23. Second sleeve; 24. Second flange; 3. Partition assembly; 31. Partition plate; 32. Sealing ring; 33. Annular groove; 34. Connecting rod; 35. Fixing seat; 4. Pressure detection assembly; 41. Pressure detection tube; 42. Detection air tube; 43. Spare air tube; 51. Inflation channel; 52. PTFE gasket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. At the same time, it should be understood that the specific embodiments described herein are merely used to explain the present utility model and are not intended to limit the present utility model.

[0019] like Figure 1 As shown, this utility model provides an isolation valve for online detection of the breather valve of an oil tank, including an isolation chamber 1. One end of the isolation chamber 1 is sequentially connected to a first sleeve 21 and a first flange 22, and the other end is sequentially connected to a second sleeve 23 and a second flange 24. An isolation component 3 that can completely seal off the interior of the isolation chamber 1 is detachably installed inside the isolation chamber 1. A pressure detection component 4 for detecting whether the pressure inside the isolation chamber 1 meets the design value is connected to the first sleeve 21 and / or the second sleeve 23.

[0020] In actual operation, the first flange 22 can be used to connect the oil tank, and the second flange 24 can be used to connect the breather valve. When the pressure detection component 4 detects that the pressure in the isolation chamber 1 exceeds the preset value, this application only needs to insert the isolation component 3 into the isolation chamber 1 to enable the isolation valve to perform the isolation function. In this way, this application also realizes online detection of the breather valve on the oil tank, eliminating the trouble of disassembling the breather valve every time, and making it more convenient to use.

[0021] In practical applications, the main function of this application is to disconnect the connection between the breather valve and the oil tank when people are inspecting the breather valve, thereby enabling online inspection of the breather valve. Simultaneously, when the breather valve is not being inspected, this application allows the isolation assembly 3 to be removed from the isolation chamber 1, ensuring the connection between the breather valve and the oil tank remains unobstructed.

[0022] The pressure detection assembly 4 comprises a pressure detection pipe 41 and a detection air pipe 42, which are arranged on the first sleeve pipe 21 and / or the second sleeve pipe 23. In this way, the arrangement of the pressure detection assembly 4 is realized, which can well determine whether the pressure in the partition chamber 1 exceeds the preset value.

[0023] The first sleeve pipe 21 and / or the second sleeve pipe 23 are further provided with a standby air pipe 43, so as to make the application more convenient to use.

[0024] The partition assembly 3 comprises a partition plate 31 and a sealing ring 32. The partition plate 31 is provided with an annular groove 33 at one end corresponding to the end of the first sleeve pipe 21 and / or the second sleeve pipe 23, and is connected with a fixing seat 35 for connecting the partition seat 11 at the other end. The sealing ring 32 is arranged in the annular groove 33. The partition plate 31 can realize the partition function, and the sealing ring 32 can realize the sealing function. In this way, the arrangement of the structure of the partition assembly 3 is realized.

[0025] The side wall of the partition chamber 1 is connected with the partition seat 11, and the partition seat 11 is provided with a partition opening 12. The partition seat 11 and the fixing seat 35 are detachably connected, and the partition assembly 3 can enter or come out of the partition chamber 1 through the partition opening 12. The partition seat 11 is arranged on the partition chamber 1, and the partition seat 11 and the partition assembly 3 are detachably connected, which can conveniently install or extract the partition assembly 3 in or from the partition chamber 1, so as to make the application more convenient to use.

[0026] The partition chamber 1 comprises an arc-shaped chamber 13 coaxial with the first sleeve pipe 21 and a rectangular chamber 14 connected with the arc-shaped chamber 13. The rectangular chamber 14 and the arc-shaped chamber 13 are of an integrated structure, and the partition seat 11 is connected with the free end of the rectangular chamber 14.

[0027] The sealing ring 32 is an inflatable sealing ring 32, and the connecting rod 34 or the side wall of the partition chamber 1 is provided with an inflation passage 51 in communication with the inflatable sealing ring 32. In this way, the sealing effect of the application is better after inflating the sealing ring 32, which can better partition the breathing valve and the oil tank.

[0028] The connecting rod 34 is arranged between the partition plate 31 and the fixing seat 35, so as to reduce the material of the partition assembly 3 and reduce the manufacturing cost.

[0029] The partition seat 11 and the fixing seat 35 are connected with a Teflon gasket 52, so as to increase the sealing performance and structural stability of the application.

[0030] In summary, the advantages of the application are as follows:

[0031] 1. The application uses an inflatable sealing ring, which not only is simple and convenient, but also can reliably achieve the sealing of the passage, and can also adapt to the deformation error of the partition valve shell caused by the manufacturing process, and has no strict requirements on the roughness of the sealing surface.

[0032] 2. The partition valve of the application is designed symmetrically up and down, and will not be installed in reverse or incorrectly.

[0033] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A shut-off valve for online detection of breather valves in oil tanks, characterized in that: The device includes a partition chamber (1), one end of which is connected to a first sleeve (21) and a first flange (22) in sequence, and the other end is connected to a second sleeve (23) and a second flange (24) in sequence. A partition assembly (3) that can completely seal off the interior of the partition chamber (1) is detachably installed inside the partition chamber (1). A pressure detection assembly (4) for detecting whether the pressure inside the partition chamber (1) meets the design value is connected to the first sleeve (21) and / or the second sleeve (23).

2. The isolation valve for online detection of oil tank breather valves according to claim 1, characterized in that: The pressure detection assembly (4) includes a pressure detection tube (41) and a detection air tube (42), which are disposed on the first sleeve (21) and / or the second sleeve (23).

3. The isolation valve for online detection of oil tank breather valves according to claim 2, characterized in that: A spare air pipe (43) is also provided on the first sleeve (21) and / or the second sleeve (23).

4. The isolation valve for online detection of oil tank breather valves according to claim 1, 2, or 3, characterized in that: The partition compartment (1) is connected to a partition seat (11) on its side wall. The partition assembly (3) includes a partition plate (31) and a sealing ring (32). One end of the partition plate (31) is provided with an annular groove (33) corresponding to the end of the first sleeve (21) and / or the second sleeve (23). The other end is connected to a fixing seat (35) for connecting the partition seat (11). The sealing ring (32) is disposed in the annular groove (33).

5. The isolation valve for online detection of oil tank breather valve according to claim 4, characterized in that: The partition seat (11) is provided with a partition opening (12). The partition seat (11) and the fixed seat (35) are detachably connected. The partition assembly (3) can enter into the partition chamber (1) or exit from the partition chamber (1) through the partition opening (12).

6. The isolation valve for online detection of oil tank breather valves according to claim 4, characterized in that: A connecting rod (34) is provided between the partition plate (31) and the fixing seat (35).

7. The isolation valve for online detection of oil tank breather valves according to claim 6, characterized in that: The sealing ring (32) is an inflatable sealing ring, and an inflation channel (51) communicating with the inflatable sealing ring (32) is provided on the side wall of the connecting rod (34) or the partition chamber (1).

8. The isolation valve for online detection of oil tank breather valve according to claim 4, characterized in that: A PTFE gasket (52) is connected between the partition seat (11) and the fixing seat (35).

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