CN212244705U

CN212244705U - Safety box of breather valve

Info

Publication number: CN212244705U
Application number: CN202020572136.0U
Authority: CN
Inventors: 佟凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-12-29
Anticipated expiration: 2030-04-16

Abstract

The utility model provides a breather valve safety box, comprises a box bod and a cover body, be equipped with the cavity that is used for holding the breather valve in the box body, be equipped with the opening with the cavity intercommunication on the box body, lid and box body swing joint are in order to be used for sealed and open the opening, be equipped with the connecting pipe on the box body, connecting pipe one end is used for the breather pipe intercommunication with the oil storage tank, the other end and cavity intercommunication, the breather valve is used for setting up in the cavity and is connected with the mouth of pipe of connecting pipe, breather valve safety box is still including adding the high pipe, add high pipe first end and cavity intercommunication, and the box body is installed when the breather pipe, it is not less. So set up, realized breather valve low department installation and exceeded the ventilation effect, solved the problem that the maintenance was maintained in the operation of need ascending a height among the prior art to stopped ascending a height personnel risk of falling and instrument risk of hurting one's life that falls, reduced maintenance time, practiced thrift the maintenance cost, reduced the maintenance cost of oil station to the breather valve.

Description

Safety box of breather valve

Technical Field

The utility model relates to an oil tank warehousing and transportation technical field, more specifically says, relates to a breather valve safety box.

Background

The underground oil storage tank of filling station changes when temperature, outside atmospheric pressure, or volume, and tank internal pressure can change to lead to taking place to be greater than the outside atmospheric pressure or be less than the outside atmospheric pressure condition, be greater than the certain limit when the pressure difference, can arouse a series of problems, if unable normal refueling, oil discharge, oil gas leaks outward etc.. To solve this problem, the tank needs to be vented to atmosphere to achieve gas equilibrium. Because the discharged oil gas is flammable and explosive gas, the exhaust port needs to be arranged at a high position. According to the requirements of GB50156-2012 'design and construction specification of automobile refueling and gas filling station', the exhaust port needs to be larger than 4m of the ground, and the pipe orifice is provided with a flame arrester. The diameter of the vent pipe is not less than 50 mm. When the gas station adopts the oil gas recovery system, oil gas can not be discharged outside at will, so the mouth of the breather pipe is provided with a breather valve (also called a vacuum pressure cap) besides a flame arrester.

It can be known from the above that, breather valve among the prior art is usually installed at the height of about 4 meters from ground, because the height of 4 meters belongs to the height of operation of ascending a height, consequently when carrying out maintenance inspection or maintenance change to breather valve, all need constructor operation of ascending a height, and the oil station generally does not be furnished with the operation of ascending a height personnel, needs coordination personnel and equipment of ascending a height, brings the puzzlement for oil station management, has increased administrative cost simultaneously and has also maintained the cost. Therefore, how to solve the problem that the height of the breather valve is too high to facilitate maintenance inspection or repair and replacement in the prior art is a great need for those skilled in the art to solve.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a breather valve protection box convenient to maintain the inspection and maintain the change to the breather valve.

In order to solve the problem, the utility model provides a breather valve safety box, comprises a box bod and lid, be equipped with the cavity that is used for holding the breather valve in the box body, be equipped with on the box body with the opening of cavity intercommunication, the lid with box body swing joint is in order to be used for sealing and opening the opening, be equipped with the connecting pipe on the box body, connecting pipe one end be used for with the breather pipe intercommunication of oil storage tank, the other end with the cavity intercommunication, the breather valve be used for set up in the cavity and with the mouth of pipe of connecting pipe is connected, breather valve safety box is still including adding the high pipe, add high pipe first end with the cavity intercommunication, just the box body install in during the breather pipe, it is not less than four meters to add high pipe second end mouth of pipe distance ground.

Preferably, the second end orifice of the heightening pipe is provided with a protective device.

Preferably, the protection means comprises a flame arrester and/or a rain cover and/or an insect shield.

Preferably, a sealing element is arranged at the joint surface of the cover body and the box body.

Preferably, the sealing member is a gasket, a seal ring or a sealant.

Preferably, the cover body is connected with the box body through a fastening piece, the box body is provided with a threaded hole matched with the fastening piece in a threaded mode, a through hole for the fastening piece to penetrate through is formed in the position, corresponding to the threaded hole, of the cover body, and the fastening piece penetrates through the through hole and is screwed with the threaded hole.

Preferably, the cover is rotatably connected with the case.

Preferably, the connecting pipe is connected with the breather valve through threads or a flange.

Preferably, the connection pipe is connected with the vent pipe by a thread, a flange or welding.

Preferably, the box body is provided with a liquid discharge hole for discharging liquid.

The utility model provides an among the technical scheme, a breather valve safety box, including box body and lid, be equipped with the cavity that is used for holding the breather valve in the box body, be equipped with the opening with the cavity intercommunication on the box body, lid and box body swing joint are in order to be used for sealed and open the opening, be equipped with the connecting pipe on the box body, connecting pipe one end is used for the breather pipe intercommunication with the oil storage tank, the other end and cavity intercommunication, the breather valve is used for setting up in the cavity and is connected with the mouth of pipe of connecting pipe, breather valve safety box is still including adding the high pipe, add high pipe first end and cavity intercommunication, and the box body is installed when the breather pipe, it is not less than four. So set up, arrange the breather valve in the box body and sealed with the lid, when the internal gas pressure change of oil storage tank need maintain balanced, breather valve work in the box body, it is gaseous through adding high pipe upper portion mouth of pipe and atmosphere and linking to each other, play the balancing action, the end of ventilating still is more than 4 meters, accord with the emission requirement, thereby realized breather valve low-lying installation and exceeded the ventilation effect, the problem that the maintenance was maintained in the operation of need ascending a height among the prior art has been solved, and stopped ascending a height personnel risk of falling and instrument injury people's risk that falls, the maintenance time has been reduced, the maintenance cost has been practiced thrift, the maintenance cost of oil station to the breather valve has been reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a safety box of a breather valve in an embodiment of the present invention;

FIG. 2 is a schematic view of the mounting state of the box body and the box cover of the safety box of the breather valve in FIG. 1;

fig. 3 is a schematic view of the safety box of the breather valve in fig. 2 in a state that the box cover is opened.

In fig. 1-3:

1. a guard; 2. heightening the pipe; 3. a breather valve; 4. a breather pipe; 5. a ball valve; 6. a seal member; 7. a cover body; 8. a box body; 9. a fastener; 10. rotating the screw; 11. and (4) connecting the pipes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

This implementation provides a breather valve protection box convenient to maintain inspection and maintenance change breather valve.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-3, an embodiment of the present invention provides a safety box for a breather valve, including a box body 8 and a cover body 7, a cavity for accommodating the breather valve 3 is provided in the box body 8, and an opening communicated with the cavity is further provided on a side wall of the box body 8. The cover 7 is movably connected with the box 8 to seal and open the opening of the box 8. The box body 8 is also provided with a connecting pipe 11, one end of the connecting pipe 11 penetrates through the box wall of the box body 8 and is communicated with the cavity in the box body 8, and the other end of the connecting pipe is used for being connected with the opening of the vent pipe 4 of the oil storage tank. The vent pipe 4 is typically provided with a ball valve 5, which ball valve 5 can be closed when the breather valve 3 or other device needs to be replaced or serviced. The breather valve safety box further comprises an heightening pipe 2, one end of the heightening pipe 2 is communicated with the cavity inside the box body 8, and when the breather valve safety box is installed on the breather pipe 4, the length of the heightening pipe 2 is not less than four meters. For example, the height for human body operation is about 0.5-1.5m, that is, the height of the box body 8 is 0.5-1.5m from the ground, the length of the heightening pipe 2 plus the height of the box body 8 from the ground should be no less than four meters.

So set up, arrange breather valve 3 in box body 8 and sealed with lid 7 in, when the change of oil storage tank internal gas pressure need maintain balance, for example, the rising of oil storage tank internal gas pressure needs discharge gas, gas enters into breather valve 3 through breather pipe 4, breather valve 3 work in the box body 8, gas enters into in the box body 8 and emits into the atmosphere through adding 2 upper portion mouths of pipe, play the balancing act, the end of ventilating still is more than 4 meters, accord with the emission requirement, thereby realized breather valve 3 low department installation eminence ventilation effect, the problem that the operation of need ascending a height among the prior art maintains breather valve 3 is solved, and stopped ascending a height personnel risk of falling and instrument risk of falling injury, the maintenance time is reduced, the maintenance cost is practiced thrift, the maintenance cost of oil station to breather valve 3 has been reduced.

In some embodiments, the second end orifice of the heightening pipe 2 is provided with a protective device 1. The entry of foreign matter from the outside can be prevented by providing the protector 1. Optionally, the protective device 1 may be a flame arrester and/or a rain cover and/or an insect cover. The fire arrestor is a safety device for preventing flame spread of inflammable gas and inflammable liquid steam, the safety of the oil storage tank can be guaranteed by isolating an external fire source through the fire arrestor, the rain-proof cover can prevent rainwater from entering the oil storage tank along the pipeline, and the insect-proof cover can prevent sundries such as winged insects from flying into the pipeline. Of course, a flame arrestor with rain and insect protection may also be selected. It should be noted that the flame arrester, the rain cover and the insect-proof cover all belong to the prior art, and the structures thereof are not important in the discussion, and are not described herein again.

In some embodiments, a sealing member 6 is disposed at the joint surface of the cover 7 and the case 8. The sealing effect between the cover 7 and the box 8 can be enhanced by arranging the sealing member 6, and the gas discharged from the oil storage tank is prevented from leaking from the joint surface between the cover 7 and the box 8. Optionally, the sealing member 6 is a gasket, a seal ring or a sealant.

In some embodiments, the cover 7 is attached to the box 8 by fasteners 9. For example, a threaded hole in threaded fit with the fastening piece 9 is formed in the box body 8, a through hole through which the fastening piece 9 passes is formed in the cover body 7 at a position corresponding to the threaded hole, and the fastening piece 9 passes through the through hole and is screwed with the threaded hole to press the cover body 7. Referring to fig. 2, the number of the fastening members 9 is plural, and the fastening members are distributed along the edge of the cover body 7, so that the connection between the cover body 7 and the box body 8 is firmer, thereby increasing the explosion-proof performance of the safety box of the breather valve. Alternatively, the material of the box 8 and the cover 7 may be gray iron, nodular iron, steel, stainless steel or copper.

In some embodiments, the cover 7 is rotatably coupled to the case 8. Referring to fig. 2 and 3, the cover 7 and the case 8 may be rotatably coupled by a rotary screw 10. Specifically, a threaded hole may be provided in the case 8 to be engaged with the rotary screw 10, and a through hole may be provided in the cover 7 at a position corresponding to the threaded hole, and the rotary screw 10 may be inserted through the through hole in the cover 7 and engaged with the threaded hole in the case 8, but the rotary screw 10 does not press the cover 7, so that the cover 7 can rotate around the rotary screw 10. When the breather valve 3 needs to be overhauled, the fastening piece 9 is only required to be screwed down, the cover body 7 rotates around the rotating screw 10, the opening on the box body 8 can be opened, the opening state is shown in figure 3, and after the overhaul is finished, the cover body 7 rotates around the rotating screw 10 to the normal position and is fixed by the fastening piece 9. So set up, need not take off lid 7, be more convenient for to breather valve 3 maintenance and repair.

In some embodiments, the connection tube 11 is connected to the breathing valve 3 through a screw thread or a flange connection or a bayonet connection, and the connection tube 11 and the breathing valve 3 may be sealed by a sealing tape, a sealant, a sealing ring or a sealing gasket.

In some embodiments, the connection pipe 11 may be connected to the ventilation pipe 4 by means of a thread, a flange, or a welding.

In some embodiments, the box 8 is provided with a drain hole for draining liquid, such as condensed water. The draining hole can be a threaded hole and is sealed by a sealing screw, the draining can be performed by opening the sealing screw when the draining is needed, and the sealing screw is screwed down to ensure the tightness of the box body 8 when the draining is not needed at ordinary times.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety box of a breather valve, which is characterized by comprising a box body (8) and a cover body (7), a cavity for accommodating the breather valve (3) is arranged in the box body (8), the box body (8) is also provided with an opening communicated with the cavity, the cover body (7) is movably connected with the box body (8) to seal and open the opening, a connecting pipe (11) is arranged on the box body (8), one end of the connecting pipe (11) is used for being communicated with a vent pipe (4) of the oil storage tank, the other end is communicated with the cavity, the breather valve (3) is arranged in the cavity and is connected with the pipe orifice of the connecting pipe (11), the breather valve safety box also comprises an increasing pipe (2), the first end of the increasing pipe (2) is communicated with the chamber, and when the box body (8) is arranged on the vent pipe (4), the distance between the pipe orifice of the second end of the heightening pipe (2) and the ground is not less than four meters.

2. A safety box according to claim 1, characterised in that the second end orifice of the riser pipe (2) is provided with a guard (1).

3. A safety box according to claim 2, characterised in that the protection means (1) comprise a flame arrester and/or a rain cover and/or an insect cover.

4. A safety box according to claim 1, characterized in that a seal (6) is provided at the junction surface of the cover (7) and the box (8).

5. A safety box according to claim 4, characterised in that said sealing element (6) is a gasket, a sealing ring or a sealant.

6. The safety box of a breather valve according to claim 1, wherein the cover body (7) is connected with the box body (8) through a fastening piece (9), a threaded hole which is in threaded fit with the fastening piece (9) is arranged on the box body (8), a through hole for the fastening piece (9) to pass through is arranged on the cover body (7) at a position corresponding to the threaded hole, and the fastening piece (9) passes through the through hole and is screwed with the threaded hole.

7. A safety box according to claim 6, wherein the cover (7) is rotatably connected to the box (8).

8. A safety box according to claim 1, characterised in that the connection tube (11) is screwed or flanged to the breathing valve (3).

9. A safety box according to claim 1, characterised in that the connection tube (11) is connected to the ventilation tube (4) by means of a thread, a flange or a weld.

10. A safety box according to claim 1, characterised in that the box body (8) is provided with drainage holes for drainage.