阅读说明：本技术 一种全通径爆炸泄压口 (Full latus rectum explosion pressure release mouth ) 是由 徐锦国 顾培财 陈广栋 钟文辉 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种全通径爆炸泄压口,包括：柜体,第一活门、第二活门、连杆、插销、第一弹簧和第二弹簧。本发明一种全通径爆炸泄压口,由单个活门改为多个活门组成,使得爆炸泄压口的每个活门变得小巧轻便,开启更灵活；由上下平移开启改为旋转开启,打开后开口可达90°,流通截面最大达到爆炸泄压口的全通径截面,使得泄压更流畅；第一活门和第二活门通过铰链或转轴安装在柜体上,使得活门与柜体的连接更牢固；利用插销和连杆互锁限位,在柜体外面不能单独打开任意活门,只能在柜体内侧在气压作用下同时打开,这样可以防止动物或风雨等外力侵入,一旦内部超压又能迅速打开完成泄压,提高了爆炸泄压口的可靠性,确保了安全性。(The invention discloses a full-bore explosion pressure relief port, which comprises: the cabinet body, first valve, second valve, connecting rod, bolt, first spring and second spring. The full-bore explosion pressure relief port is formed by changing a single valve into a plurality of valves, so that each valve of the explosion pressure relief port becomes small and exquisite and light, and is more flexible to open; the opening can reach 90 degrees after being opened, and the maximum flow cross section reaches the full-bore cross section of the explosion pressure relief opening, so that the pressure relief is smoother; the first valve and the second valve are arranged on the cabinet body through hinges or rotating shafts, so that the connection between the valves and the cabinet body is firmer; the interlocking limiting of the bolt and the connecting rod is utilized, any valve can not be opened independently outside the cabinet body, and the valve can only be opened simultaneously under the action of air pressure at the inner side of the cabinet body, so that the invasion of external force such as animals or wind, rain and the like can be prevented, once the internal overpressure can be quickly opened to complete pressure relief, the reliability of the explosion pressure relief port is improved, and the safety is ensured.)

1. A full latus rectum explosion pressure relief vent, its characterized in that includes: a cabinet body, a first valve, a second valve, a connecting rod, a bolt, a first spring and a second spring,

the first valve and the second valve are rotatably connected to the cabinet body, the first valve and the second valve are opened towards two different rotating directions, the bottom of the first valve is provided with the bolt, the tail end of the bottom of the bolt is provided with an inclined stop block, the bolt is provided with a first spring connected with the cabinet body to provide pre-tightening force for closing the first valve, so that the first valve is reset and closed after being opened,

the bottom of the second valve is movably connected with the connecting rod, the connecting rod is provided with a clamping groove, the top of the clamping groove is provided with a folded edge, the connecting rod is connected with the cabinet body through a second spring to provide pre-tightening force for closing the second valve, so that the second valve is reset and closed after being opened,

the clamp groove on the connecting rod is movably connected with the inclined stop block on the bolt, the inclined stop block is matched with the clamp groove and the folded edge to be interlocked and fastened, the bolt is driven to move up and down when the first valve rotates, the connecting rod is driven to move left and right when the second valve rotates, and therefore the interlocking of the bolt and the clamp groove is removed or locked, and the first valve and the second valve are synchronously opened and closed.

2. A full bore explosion relief vent according to claim 1, wherein the number of first and second shutters is greater than or equal to 1 each.

3. The full-bore explosion relief vent according to claim 1, wherein said angled stop is wedge-shaped.

4. A full bore explosion relief vent according to claim 1, wherein each of said first shutters has a said latch attached thereto.

5. The full-bore explosion relief vent according to claim 1, wherein a plurality of said first shutters have a latch mounted thereon, and all of said first shutters are connected by a linkage rod so that the first shutters are linked to rotate synchronously.

6. A full-bore explosion relief vent according to claim 1, wherein the bottom of said second flapper is rotatably connected to said link.

7. The full-bore explosion pressure relief vent according to claim 1, wherein a plurality of second shutters are simultaneously connected to the connecting rod, and all the second shutters are driven by the connecting rod to rotate synchronously in a linkage manner.

8. A full-bore explosion relief vent according to claim 1, wherein said first and second shutters open to the exterior of said cabinet.

9. The full-bore explosion relief vent according to claim 1, wherein the steps of implementing the full-bore explosion relief vent comprise:

(1) when the first valve and the second valve are closed, the connecting rod and the bolt are in a static state, and the inclined stop block and the clamping groove of the bolt are in an interlocking, limiting and fastening state;

(2) when only the first valve is opened and the second valve is closed, the connecting rod is in a static state, the first valve drives the bolt to be lifted, but the inclined stop block of the bolt is clamped by the folded edge on the clamping groove, and the inclined stop block and the clamping groove are still in an interlocking limiting fastening state, so that the bolt cannot continue to move upwards, and the first valve cannot be opened independently;

(3) when only the second valve is opened and the first valve is closed, when the bolt is in a static state, the second valve drives the connecting rod to translate, but the clamping groove in the connecting rod is blocked by the inclined blocking block, so that the connecting rod cannot continue to move leftwards, and the second valve cannot be opened independently;

(4) when the first valve and the second valve are opened simultaneously, the first valve rotates outwards the cabinet body by taking a hinge or a rotating shaft fixed on the cabinet body as a fulcrum, so that the first valve overcomes the pre-tightening force of the first spring to open and lift the bolt; when the first valve is opened, the second valve is rotated and opened outwards by taking a hinge or a rotating shaft fixed on the cabinet body as a fulcrum to drive the connecting rod connected with the second valve to move leftwards, the inclined stop block on the bolt avoids the folded edge positioned on the clamping groove, so that the folded edge on the clamping groove is unlocked and released with the bolt, and the first valve and the second valve are continuously rotated and opened to 90 degrees.

Technical Field

The invention relates to the field of explosion pressure relief, in particular to a full-bore explosion pressure relief opening.

Background

The national standard GB50028 Town gas design Specification 6.6.4.2 article: the pressure regulating cabinet is provided with an explosion pressure relief opening, the pressure relief opening is not less than 50% of the area of the upper cover or the maximum cabinet wall, and the pressure regulating cabinet is provided with a ventilation opening. According to the requirements of national standards, a gas pressure regulating cabinet exceeding a certain volume must be provided with an explosion pressure relief opening and a natural ventilation opening. The existing explosion pressure relief opening is characterized in that a movable door opened by vertical up-down translation is arranged on an upper cover of a pressure regulating cabinet, 2-4 pull rods pre-tightened by springs are arranged on the movable door and connected with a cabinet body, when the pressure in the cabinet exceeds the standard, the movable door overcomes the pre-tightening force of self weight and the springs under the action of air pressure, the movable door is translated and raised to a certain height, and therefore the air pressure is released along the gaps of four sides of the movable door.

This way of explosion vent has drawbacks: the movable door has heavy weight, unsmooth pressure relief passage, easy clamping and insecure connection with the cabinet body. The area of the pressure relief opening meeting the standard requirement is heavy, the weight of the single movable door is heavy, and the pretightening force of the spring is required to enable the movable door to be horizontally moved and jacked open. The movable door serving as the pressure relief opening is connected with the cabinet body through 2 to 4 movable pull rods, and the opening of gaps on four sides of the movable door is limited when the movable door is lifted due to limited travel of the pull rods, so that the actual opening area of the pressure relief opening often cannot reach the area required by the specification. In addition, because the distance between the pull rods is large, the movement and the guide of the pull rods are difficult to ensure to be consistent, so that one or more corners are easy to clamp, the movable door cannot be opened, and the pressure cannot be released smoothly. The movable door serving as the pressure relief opening is connected with the cabinet body only through the movable pull rod and is not firmly connected with the cabinet body, so that the movable door is easily separated from the cabinet body, and the movable door is often blown off by wind or vibrated in the transportation process.

Disclosure of Invention

The invention mainly solves the technical problem of providing a full-bore explosion pressure relief port which has the advantages of light and handy structure, large circulation section, flexible opening, stable installation, high safety and reliability and the like, and can obviously improve the reliability and the safety of a gas pressure regulating cabinet and a sealed cabin when the gas pressure regulating cabinet or other sealed cabins are popularized and used.

In order to solve the technical problems, the invention adopts a technical scheme that:

there is provided a full bore explosion pressure relief vent comprising: a cabinet body, a first valve, a second valve, a connecting rod, a bolt, a first spring and a second spring,

the first valve and the second valve are rotatably connected to the cabinet body, the first valve and the second valve are opened towards two different rotating directions, the bottom of the first valve is provided with the bolt, the tail end of the bottom of the bolt is provided with an inclined stop block, the bolt is provided with a first spring connected with the cabinet body to provide pre-tightening force for closing the first valve, so that the first valve is reset and closed after being opened,

the bottom of the second valve is movably connected with the connecting rod, one end of the connecting rod is provided with a clamping groove, the top of the clamping groove is provided with a folded edge, the connecting rod is connected with the cabinet body through a second spring to provide pre-tightening force for closing the second valve, so that the second valve is reset and closed after being opened,

the clamp groove on the connecting rod is movably connected with the inclined stop block on the bolt, the inclined stop block is matched with the clamp groove and the folded edge to be interlocked and fastened, the bolt is driven to move up and down when the first valve rotates, the connecting rod is driven to move left and right when the second valve rotates, and therefore the interlocking of the bolt and the clamp groove is removed or locked, and the first valve and the second valve are synchronously opened and closed.

In a preferred embodiment of the present invention, the number of the first shutter and the second shutter is greater than or equal to 1 each.

In a preferred embodiment of the present invention, the inclined stopper has a wedge-shaped structure.

In a preferred embodiment of the present invention, each of the first shutters is connected to one of the latches.

In a preferred embodiment of the present invention, a plurality of the first shutters are provided with a latch, and all the first shutters are connected by a linkage rod so that the first shutters are linked to rotate synchronously.

In a preferred embodiment of the present invention, the bottom of the second shutter is rotatably connected to the link.

In a preferred embodiment of the present invention, the plurality of second shutters are simultaneously connected to the connecting rod, and all the second shutters are driven by the connecting rod to rotate synchronously in a linkage manner.

In a preferred embodiment of the present invention, the first shutter and the second shutter are opened to the outside of the cabinet body.

In a preferred embodiment of the present invention, the steps for implementing the full bore explosion pressure relief vent include:

(1) when the first valve and the second valve are closed, the connecting rod and the bolt are in a static state, and the inclined stop block and the clamping groove of the bolt are in an interlocking, limiting and fastening state;

(2) when only the first valve is opened and the second valve is closed, the connecting rod is in a static state, the first valve drives the bolt to be lifted, but the inclined stop block of the bolt is clamped by the folded edge on the clamping groove, and the inclined stop block and the clamping groove are still in an interlocking limiting fastening state, so that the bolt cannot continue to move upwards, and the first valve cannot be opened independently;

(3) when only the second valve is opened and the first valve is closed, the bolt is in a static state, the second valve drives the connecting rod to translate, but the clamping groove in the connecting rod is blocked by the inclined blocking block, so that the connecting rod cannot continue to move leftwards, and the second valve cannot be opened independently;

(4) when the first valve and the second valve are opened simultaneously, the first valve rotates outwards the cabinet body by taking a hinge or a rotating shaft fixed on the cabinet body as a fulcrum, so that the first valve overcomes the pre-tightening force of the first spring to open and lift the bolt; when the first valve is opened, the second valve is rotated and opened outwards by taking a hinge or a rotating shaft fixed on the cabinet body as a fulcrum to drive the connecting rod connected with the second valve to move leftwards, the inclined stop block on the bolt avoids the folded edge positioned on the clamping groove, so that the folded edge on the clamping groove is unlocked and released with the bolt, and the first valve and the second valve are continuously rotated and opened to 90 degrees.

The invention has the beneficial effects that: the explosion pressure relief port is composed of a plurality of valves, so that each valve of the explosion pressure relief port becomes small and portable, and the explosion pressure relief port is more convenient to open; the opening can reach 90 degrees after being opened by changing the vertical translation opening into the rotation opening, and the maximum flow cross section reaches the full-bore cross section of the explosion pressure relief opening, so that the pressure relief is smoother; the hinge or the rotating shaft is used for rotary support, most weight of the valve is borne by the cabinet body, only a small amount of weight of the valve needs to be overcome, and the valve is opened more flexibly; the hinge or the rotating shaft is fixedly installed with the cabinet body, and the bolt and the connecting rod are interlocked and fastened, so that the valve is more firmly connected with the cabinet body, the reliability of the explosion pressure relief opening is improved, and the safety is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of an embodiment of a full-bore explosion relief vent according to the present invention in a closed state;

FIG. 2 is a schematic structural view of an embodiment of a full bore explosion relief vent of the present invention in an open state;

FIG. 3 is an enlarged partial schematic view of the interlocking fastening of the latch and the link in a full bore explosion vent embodiment of the present invention;

FIG. 4 is a partially enlarged view of the state of the unlocking trip of the latch and the connecting rod in the embodiment of the full-bore explosion pressure relief vent according to the invention;

FIG. 5 is a schematic diagram of an axial view of a first embodiment of a full bore explosion vent in accordance with the present invention;

FIG. 6 is a schematic diagram of a second embodiment of a full bore explosion vent in accordance with the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention includes:

the utility model provides a full latus rectum explosion pressure release mouth, can be used to on gas regulator cabinet or other airtight cabins, its structure includes: the cabinet comprises a cabinet body 1, a first valve 2, a second valve 3, a connecting rod 4, a bolt 5, a first spring 6 and a second spring 11.

The first valve (left valve) 2 and the second valve (right valve) 3 are arranged on the cabinet body 1 through hinges or rotating shafts, and the number of the first valve and the number of the second valve are respectively more than or equal to 1. The first shutter and the second shutter open in two different rotational directions. In this embodiment, the first shutter is opened leftward and the second shutter is opened rightward.

The bottom of the first valve, which is close to the joint with the cabinet body, is provided with the bolt 5, the tail end of the bolt is connected with an inclined stop block 9 of a wedge-shaped structure, and the bolt is connected with the cabinet body through the first spring 6 to provide pre-tightening force for closing the first valve, so that the valve is reset and closed after being opened.

The first valves can be connected with a bolt respectively so as to be matched and connected with the clamping grooves 10 of the connecting rods respectively. Or only one bolt is arranged on one first valve, and all the first valves are connected together by an additional linkage rod to realize linkage synchronous rotation, and the interlocking and limiting effects are the same.

One end of the connecting rod is connected with the cabinet body through a second spring 11 to provide pre-tightening force for closing the second valve, so that the valve is reset and closed after being opened. The connecting rod is provided with one or more clamping grooves 10 movably connected with the inclined stop blocks, the tops of the clamping grooves are provided with folded edges 8 matched with the inclined stop blocks for interlocking and fastening, and after the first valve is closed, the bolt and the folded edges on the clamping grooves are interlocked and fastened. After the bolt and the clamping groove folded edges are interlocked and fastened, any valve (the first valve and the second valve) cannot be opened independently, and only when the interlocking limit is released, the first valve and the second valve can be opened synchronously.

The bottom of the second valve can be rotatably connected with the connecting rod through connecting structures such as a rotating shaft/hinge/sliding groove and the like so as to drive the connecting rod to move left and right in the cabinet body, so that the interlocking of the bolt and the clamping groove is released or locked, and the first valve and the second valve are opened and closed.

The second valves are connected to the same connecting rod at the same time, and all the second valves are driven to rotate synchronously in a linkage mode through the connecting rod.

As shown in fig. 1 and 2, the first valve 2 rotates outwards from the cabinet body by taking a hinge or a rotating shaft fixed on the cabinet body as a fulcrum to drive the bolt connected with the first valve to move upwards, when the first valve rotates to be opened to 90 degrees, the bolt is lifted to the uppermost end, and the spring connected with the bolt is compressed; the second valve 3 rotates outwards the cabinet body by taking a hinge or a rotating shaft fixed on the cabinet body as a pivot to drive a connecting rod connected with the second valve to move leftwards, and when the second valve rotates to open to 90 degrees, the connecting rod moves to the leftmost end, and a spring connected with the connecting rod is stretched. When the valve of the explosion pressure relief opening is opened at 90 degrees, the direction of the valve is consistent with the direction of the channel of the explosion pressure relief opening, namely the section of the pressure relief passage is equivalent to the section of the full diameter of the explosion pressure relief opening. Because most of the weight of the valve is borne on the hinge or the rotating shaft, when the valve is opened, only the pretightening force of the spring and the gravity of a small amount of the valve need to be overcome, and therefore the valve can be opened more conveniently. When the external force disappears, the spring is restored and the valve is closed.

In addition, in order to ensure that the valve of the explosion pressure relief opening can be smoothly opened when the pressure in the cabinet body or the closed cabin exceeds the standard, but cannot be easily opened from the outside under the action of external force such as wind, rain or animals, the opening and closing of the valve are controlled by a valve interlocking limiting mechanism, namely when the left valve 2 and the right valve 3 are closed, the folded edge 8 of the clamping groove on the connecting rod 4 and the bolt 5 are in an interlocking limiting fastening state, and the left valve 2 and the right valve 3 cannot be independently opened; only when the left valve 2 and the right valve 3 are opened together and the connecting rod 4 and the bolt 5 are driven to move simultaneously, the connecting rod 4 and the bolt 5 can be separated in a tripping mode, and the left valve 2 and the right valve 3 can be opened completely. The specific content comprises the following steps:

when the left valve 2 and the right valve 3 are opened simultaneously: the left valve 2 overcomes the pretightening force of the spring 6 to open and lift the bolt 5, and meanwhile, the right valve 3 is opened to drive the connecting rod 4 to translate leftwards, so that the folded edge 8 on the clamping groove is separated from the bolt 5 in a tripping manner, and the left valve 2 and the right valve 3 are continuously rotated to be opened to 90 degrees.

As shown in fig. 4, at this time, the connecting rod 4 translates to the left, the oblique stop 9 on the plug 5 avoids the folded edge 8 at the left part of the slot on the connecting rod 4, the plug 5 can be smoothly lifted, and the slot 10 of the connecting rod 4 can also cross the bottom of the oblique stop and continue to move to the left, i.e., the plug 5 and the connecting rod 4 realize unlocking and tripping.

And (II) when only the left valve 2 is opened and the right valve 3 is closed, the left valve 2 drives the bolt 5 to be lifted, but an inclined stop block of the bolt 5 is clamped by the clamping groove and the folding edge 8 on the connecting rod 4, so that the bolt 5 cannot continue to move upwards, and the left valve 2 cannot be opened. As shown in fig. 3, at this time, the connecting rod 4 connected to the right shutter 3 is in a static state, and the inclined stopper of the latch 5 is located below the left folding edge 8 of the slot on the connecting rod 4, so that the latch 5 cannot be lifted, that is, the left shutter 2 cannot be opened.

And (III) when only the right valve 3 is opened and the left valve 2 is closed, the right valve 3 drives the connecting rod 4 to translate, but the clamping groove in the connecting rod 4 is blocked by the inclined blocking block of the bolt 5, so that the connecting rod 4 cannot continue to move leftwards, and the right valve 3 cannot be opened. As shown in fig. 3, at this time, the latch 5 connected to the left shutter 2 is in a stationary state, the lower end of the inclined block of the latch 5 is inserted into the slot of the connecting rod 4, and the connecting rod 4 cannot move to the left, that is, the right shutter 3 cannot be opened.

The interlocking limit of the left valve 2 and the right valve 3 is realized under the three conditions.

Detailed description of the preferred embodiment

As shown in fig. 5, a full bore explosion relief vent includes 2 valves, a left valve 2 and a right valve 3. The two valves are respectively rotated and opened towards different directions. The illustrated shutter is in a nearly fully open position with the latch and link unlocked and tripped. When the two valves are reset to be in the closed position, one of the 2 valves is not moved, and the other valve cannot be opened, so that the invasion of a certain valve to wind and rain or external force of animals and the like can be prevented. However, if the pressure in the box body or the closed cabin exceeds the standard, the air pressure can act on 2 valves at the same time, and the valves can be completely opened to release the pressure smoothly after exceeding the pre-tightening force of the spring and a small amount of gravity.

Detailed description of the invention

As shown in fig. 6, a full bore explosion pressure relief vent includes two left valves 2 and two right valves 3. The left shutter, which is opened by rotation toward the left, includes two doors, door 2A and door 2B, and the right shutter, which is opened toward the right, includes two doors, door 3A and door 3B. The illustrated shutter is in a nearly fully open position with the latch and link unlocked and tripped. The two left valves are connected with independent bolts respectively, and the two doors of the right valve are connected and linked through connecting rods. When all the valves are reset to be in the closed position, as long as any one of the 4 doors is not moved, the connecting rod and the bolt cannot be unlocked and released, namely, the valves cannot be opened by opening any door from the outside of the box body, so that the valve can be prevented from being invaded by external force such as wind, rain or animals. However, if the pressure in the box body or the closed cabin exceeds the standard, the air pressure can act on all the doors simultaneously, and the valve can be opened completely to release the pressure smoothly after exceeding the pre-tightening force of the spring and a small amount of gravity.

The full-bore explosion pressure relief port has the beneficial effects that:

the structure of each valve of the explosion pressure relief opening becomes smaller and lighter, and the opening is more convenient;

the original single valve moves up and down horizontally when opened, and the pressure can be released from the peripheral seams only after being opened, the invention changes the up-down horizontal movement opening into the rotation opening, the opening can reach 90 degrees after being opened, the maximum flow cross section reaches the full-bore cross section of the explosion pressure release port, so that the pressure release is smoother;

because of the hinge or the rotating shaft support, most weight of the valve is borne by the cabinet body, and the valve is opened only by overcoming the weight of a small amount of valve, so that the valve is more flexible to open;

and (IV) because the hinge or the rotating shaft is fixed, the bolt and the connecting rod are fastened in an interlocking manner, the valve is more firmly connected with the cabinet body, the reliability of the explosion pressure relief opening is improved, and the safety is ensured.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.