Breather valve convenient for self-inspection and oil tank applying breather valve

Abstract

An oil tank comprises a breather valve facilitating self-inspection, pressure testing can be conveniently conducted, the breather valve comprises a breather valve body, a connecting ring and an isolating valve are sequentially connected to a connecting flange of the breather valve body in a sealed mode, and the connecting ring and the isolating valve are provided with through holes corresponding to open holes of the connecting flange; an insertion hole is formed in the side wall of the connecting circular ring, a test mechanism which is detachable relative to the connecting circular ring is arranged in the insertion hole in a penetrating manner, and the test mechanism is in sealed connection with the connecting circular ring; the testing mechanism comprises a testing pipe inserted into the connecting ring, and one end, far away from the connecting ring, of the testing pipe is connected with an external air pressure adjusting mechanism through an electromagnetic valve. Firstly, different from a conventional mode that the breather valve needs to be disassembled or is subjected to pressure testing together with equipment installation, the device can independently perform pressure testing on the breather valve through the air pressure adjusting mechanism after the breather valve is closed by arranging the isolating valve so as to ensure whether the breather valve can normally perform air inlet and air outlet or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breathing valve self -checking mechanism technical field, concretely is a breathing valve and the oil tank of applying it convenient for self -checking. BACKGROUND

[0002] As shown in the announcement number CN114321408A, a kind of green energy-saving environment-friendly storage tank breather valve and its use method are shown, disclose a kind of breathing valve structure, it can be seen, the pressure regulating mode of breathing valve includes two valve plates, i.e. upper valve plate and lower valve plate, after being installed in oil tank, once oil tank appears air pressure variation, one of two valve plates can be pushed to carry out air intake or air exhaust, and in order to ensure the normal operation of the above structure, it needs to be detected periodically, to ensure that the above valve plate can be moved under pressure threshold condition, and when detecting, since tank volume is larger, the time required for pressure rise and pressure drop is relatively long, in turn it will affect detection efficiency. UTILITY MODEL CONTENTS

[0003] To solve the problem that the time required for pressure rise and pressure drop is relatively long when detecting the breathing valve provided in the tank, affect detection efficiency, the utility model provides a kind of breathing valve and the oil tank of applying it convenient for self -checking.

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

[0005] A kind of breathing valve convenient for self -checking, including breathing valve main body, the connecting flange of breathing valve main body is sequentially sealed and connected with connecting ring and cut-off valve, and connecting ring and cut-off valve are provided with the through hole corresponding to the opening of connecting flange;

[0006] The side wall of the connecting ring is provided with a socket, and a test mechanism detachable relative to the connecting ring is arranged in the socket, and the test mechanism is sealed and connected with the connecting ring;

[0007] The test mechanism includes a test tube inserted into the connecting ring, and the test tube is connected to an external air pressure adjusting mechanism through a solenoid valve at one end away from the connecting ring.

[0008] By setting the cut-off valve, pressure test can be carried out on the breathing valve through the air pressure adjusting mechanism alone after the cut-off valve is closed, to ensure whether it can normally intake and exhaust.

[0009] In order to facilitate the real-time position of valve plate, a first distance measuring mechanism is arranged inside the connecting ring, and the first distance measuring mechanism is located directly below the lower valve plate, and a second distance measuring mechanism is further arranged above the upper valve plate.

[0010] The test tube is connected by fixing a connecting piece on the outside of the test tube, and the connecting piece is detachably and sealingly connected with the connecting ring.

[0011] In order to facilitate understanding of real-time pressure, the test pipe is provided with a pressure gauge at a position between the connecting piece and the electromagnetic valve.

[0012] The first distance measuring mechanism is mounted in a manner that the test pipe is sealed at the end within the connecting ring and detachably connected with the first distance measuring mechanism, and a plurality of air holes are arranged in the circumferential direction of the side surface.

[0013] In order to avoid affecting the normal operation of the breathing valve, the pipe diameter of the connecting ring and the partition valve is greater than the pipe diameter of the breathing valve connecting flange.

[0014] As a preferred solution, the partition valve is a butterfly valve.

[0015] In order to facilitate installation, the connecting ring and the partition valve are integrally formed.

[0016] An oil tank comprises a tank body, and the breathing valve is arranged at the opening of the tank body, and the tank flange is detachably connected with the breathing valve through the bolt penetrating the connecting flange, the connecting ring and the partition valve.

[0017] In the above manner, it can be quickly confirmed whether the breathing valve of the oil tank can normally operate and will not affect the internal environment of the oil tank.

[0018] In order to avoid the failure of the breathing valve, the oil tank is provided with an alarm, and the alarm can be turned on after the partition valve is closed.

[0019] The beneficial effects of the utility model lie in: the utility model is a breathing valve convenient for self-checking and an oil tank applying the same, on the basis of the existing breathing valve, by increasing the connecting ring and the partition valve structure, the normal operation condition of the breathing valve can be confirmed alone, so that it can be quickly learned whether it can normally inhale and exhale under the preset pressure threshold, in addition to this mode, by the distance measuring mechanism, the displacement distance of the valve plate under different pressure conditions can be learned, the breathing valve can be confirmed whether it can normally operate according to the condition, and after being installed in the oil tank, the structure can detect the breathing valve without affecting the internal environment of the oil tank. 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 following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the utility model.

[0021] In the drawings:

[0022] Figure 1 It is a structural schematic view of the utility model;

[0023] Figure 2 It is a sectional structural schematic view of the utility model;

[0024] Figure 3 It is a top view structure schematic diagram of the utility model;

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

[0026] The components represented by the reference numerals in the drawings are:

[0027] 1, breathing valve body; 11, connecting flange; 12, lower valve plate; 13, upper valve plate; 2, connecting ring; 3, butterfly valve; 4, test mechanism; 41, test tube; 42, connecting piece; 43, pressure gauge; 44, electromagnetic valve; 51, first distance measuring mechanism; 52, second distance measuring mechanism. DETAILED DESCRIPTION

[0028] Example 1

[0029] As Figures 1-3 shown, a breathing valve convenient for self-checking, including breathing valve body 1, and breathing valve body 1 is due to the existing conventional structure, therefore, no longer tedious, it mainly includes the upper valve plate 13 and the lower valve plate 12 of controlling the air inlet and outlet, and including the connecting flange 11 connected with the pipe orifice of the oil tank or other equipment, the main difference lies in, the connecting flange 11 of the breathing valve body 1 is sealed and connected with the connecting ring 2 and the partition valve in turn, ensure that it will not affect the sealing of the equipment connected with it normally, and the connecting ring 2 and the partition valve are provided with through holes corresponding to the opening of the connecting flange 11, the purpose of setting the above through hole is that it will not affect the connection with the oil tank or other equipment, under normal circumstances, the breathing valve is directly connected with the above equipment through bolts, and after the above structure is added, it is necessary to ensure the sealing of the structure connection, therefore, the above through hole is set, only the length of the original fixing bolt needs to be extended, which can ensure that the nut can be normally installed and fastened to realize the connection.

[0030] In addition, in order to facilitate pressure test, the connecting ring 2 side wall is provided with a jack, and the purpose of the jack is to obtain a pressure regulating hole, therefore, as Figure 2 、 4 shown, the test mechanism 4 detachable relative to the connecting ring 2 is arranged in the jack, and the test mechanism 4 is sealed and connected with the connecting ring 2, through the above mode, the gas can be injected into the interior and the pressure test can be completed, it should be noted that the test mechanism 4 needs to ensure that the partition valve is in the closed state during use, so as to ensure that the internal cavity is a sealed cavity under the condition that the valve plate is not moved, therefore, during the pressure increasing process, the above lower valve plate 12 can be pushed normally, and during the pressure decreasing process, the above upper valve plate 13 will also be pushed, thereby completing the breathing pressure regulating operation.

[0031] And, in the structure, the testing mechanism 4 comprises a testing pipe 41 inserted into the connecting ring 2, the testing pipe 41 is used for adjusting air pressure, and for this purpose, one end of the testing pipe 41 away from the connecting ring 2 is connected with an external air pressure adjusting mechanism through an electromagnetic valve 44, and the electromagnetic valve 44 can control the opening and closing of the testing pipe 41, so as to ensure that the structure cannot inhale and exhale air from the testing pipe 41 during use.

[0032] Therefore, it can be seen that by arranging the cut-off valve, the pressure test of the breather valve can be carried out through the air pressure adjusting mechanism alone after the cut-off valve is closed, so as to ensure whether the breather valve can inhale and exhale air normally, and because the cavity is small, the problem of time-consuming for air pressure rising or falling does not occur.

[0033] And as a preferred solution, as shown in Figure 2 The connection of the testing pipe 41 is achieved by fixing a connecting piece 42 outside the testing pipe 41, and the connecting piece 42 is detachably and sealingly connected with the connecting ring 2, and the connecting ring 2 can be provided with a flange structure to be connected with the connecting piece 42, and if necessary, the connecting piece 42 can also be connected with the connecting ring 2 by welding or bonding or other ways, as long as the sealing connection can be achieved, and the detachable design can facilitate maintenance, but the bonding and welding do not have the above characteristics, but can be selected.

[0034] Then, in order to facilitate the understanding of real-time pressure, the testing pipe 41 is provided with a pressure gauge 43 at a position between the connecting piece 42 and the electromagnetic valve 44. The pressure gauge 43 can feedback the air pressure in the sealing cavity in real time, and can judge and confirm the normal operation of the breather valve according to the air pressure.

[0035] Finally, in order to facilitate installation, the connecting ring 2 is integrally formed with the cut-off valve, and the cut-off valve is a butterfly valve 3 for the purpose of convenient control. That is, a cut-off valve can be welded on one side of the butterfly valve 3, or a cylinder can be directly selected as the valve body of the butterfly valve 3, as long as the target can be achieved to meet the demand.

[0036] In addition to the above structure, as a preferred solution, in order to avoid affecting the normal operation of the breather valve, the pipe diameter of the connecting ring 2 and the cut-off valve is greater than the pipe diameter of the breather valve connecting flange 11.

[0037] In addition to the above structure, according to the characteristics of the breather valve, the device also discloses an oil tank comprising a tank body, and the opening of the tank body is provided with the above-mentioned breather valve. When detecting, the butterfly valve can be closed to directly detect the breather valve without affecting the internal environment of the oil tank, and the tank flange is detachably connected with the breather valve after penetrating the connecting flange 11, the connecting ring 2 and the cut-off valve through bolts.

[0038] The above method can quickly confirm whether the breather valve of the oil tank can operate normally and will not affect the internal environment of the oil tank. It takes less time. However, when using it, it is necessary to avoid closing the butterfly valve, which would affect the normal internal air pressure regulation of the oil tank.

[0039] Therefore, to prevent the breather valve from malfunctioning, the oil tank is equipped with an alarm that can be activated after the isolation valve is closed. In this mode, the oil tank has a limit switch installed at the actuator of the butterfly valve 3. When the butterfly valve 3 is in a fully closed state, the limit switch can be triggered. By connecting it to the alarm, the alarm can be triggered to provide a reminder.

[0040] Example 2

[0041] In addition to the structure described in Example 1, since the valve plate of the breathing valve is located in the internal space, its opening and closing degree cannot be known. Therefore, based on this, as... Figure 2 As shown, in order to facilitate knowing the real-time position of the valve plate, the test tube 41 is provided with a first ranging mechanism 51 inside the connecting ring 2, and the first ranging mechanism 51 is located directly below the lower valve plate 12. The breathing valve is also provided with a second ranging mechanism 52 directly above the upper valve plate 13. The position monitoring of the upper and lower valve plates can be realized through the setting of the two ranging mechanisms. With the help of the pressure gauge, it is possible to know whether the breathing valve can normally adjust the air intake and exhaust according to the air pressure and the actual position of the two valve plates.

[0042] Furthermore, the first ranging mechanism 51 is installed in such a way that the end of the test tube 41 inside the connecting ring 2 is sealed and detachably connected to the first ranging mechanism 51. Multiple air holes are provided on the side circumferentially to prevent gas from blowing towards the first ranging mechanism 51 and causing it to shake or shift.

Claims

1. A breather valve which is convenient for self-checking, comprising a breather valve main body (1), characterized in that, The connecting flange (11) of the breathing valve body (1) is sequentially and sealingly connected with a connecting ring (2) and a cut-off valve, and the connecting ring (2) and the cut-off valve are provided with through holes corresponding to the openings of the connecting flange (11); The connecting ring (2) is provided with a bushing on the side wall, and a test mechanism (4) is detachably arranged in the bushing and relative to the connecting ring (2), and the test mechanism (4) is sealingly connected with the connecting ring (2); The test mechanism (4) comprises a test tube (41) inserted into the connecting ring (2), and one end of the test tube (41) away from the connecting ring (2) is connected with an external air pressure adjusting mechanism through a solenoid valve (44).

2. A breather valve for ease of self-checking according to claim 1, characterized in that The test tube (41) is provided with a first distance measuring mechanism (51) inside the connecting ring (2), and the first distance measuring mechanism (51) is located directly below the lower valve plate (12), and the breathing valve is further provided with a second distance measuring mechanism (52) directly above the upper valve plate (13).

3. A breather valve for facilitating self-checking according to claim 1, wherein, The test tube (41) is provided with a connecting piece (42) on the outside, and the connecting piece (42) is detachably and sealingly connected with the connecting ring (2).

4. A breather valve for facilitating self-checking according to claim 3, wherein, The test tube (41) is provided with a pressure gauge (43) between the connecting piece (42) and the solenoid valve (44).

5. A breather valve for facilitating self-checking according to claim 2, wherein, The end of the test tube (41) in the connecting ring (2) is sealed and detachably connected with the first distance measuring mechanism (51), and a plurality of air holes are arranged on the side surface in a circumferential direction.

6. A breather valve for ease of self-checking according to claim 1, wherein, The pipe diameters of the connecting ring (2) and the cut-off valve are greater than that of the breathing valve connecting flange (11).

7. A breather valve for facilitating self-checking according to claim 1, wherein, The cut-off valve is a butterfly valve (3).

8. A breather valve for facilitating self-checking according to claim 1, wherein, The connecting ring (2) and the cut-off valve are integrally formed.

9. A tank characterized in that, A tank body is provided, and the above-mentioned breathing valve is arranged at the opening of the tank body, and the tank flange is detachably connected with the breathing valve after penetrating the connecting flange (11), the connecting ring (2) and the cut-off valve through bolts.

10. A tank as claimed in claim 9, wherein The oil tank is provided with an alarm, and the alarm can be turned on after the cut-off valve is closed.

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