CN218439061U

CN218439061U - Adjustable explosion door

Info

Publication number: CN218439061U
Application number: CN202222146341.2U
Authority: CN
Inventors: 钱晋; 张建平; 蒋岳盘; 钱重羽; 杭兵; 张田明
Original assignee: Jiangsu Zhongding Environment Engineering Share Co ltd
Current assignee: Jiangsu Zhongding Environment Engineering Share Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-02-03
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses an adjustable explosion vent, which comprises a connecting pipe, a first flange and a second flange, wherein the second flange is arranged on the connecting pipe and is connected with the first flange; the adjusting assembly A comprises a screw and an elastic piece, the screw is connected to the first flange, and the first flange can move along the axis direction of the screw, so that the first flange and the second flange are separately decompressed or tightly sealed. The utility model discloses normal during operation seals through tongue-and-groove and sealed the pad, sets for the blasting pressure through calculating the back, is realized by the pulling force or the tension of spring, can adjust explosion-proof pressure in real time according to operating condition's change.

Description

Adjustable explosion door

Technical Field

The utility model relates to an explosion vent specifically is an explosion vent with adjustable.

Background

The explosion-proof door is basically of two types, one type is a rupture disk type, the rupture disk can be torn when a set pressure is exceeded, the purpose of pressure relief is achieved, the rupture disk is disposable and cannot be repaired, and once the rupture disk is torn, the whole device stops running. The other type is an explosion vent adopting a gravity rotary type, and the set sealing pressure is achieved through a certain balance weight or the weight of the rotary explosion vent. The explosion-proof door has the advantages that the weight is the smallest under the same sealing pressure when the explosion-proof door is vertically installed, the weight is increased along with the increase of the included angle with the horizontal plane, and the explosion-proof door cannot be used when the angle is increased to a certain value.

SUMMERY OF THE UTILITY MODEL

For solving the defect of above-mentioned prior art, the utility model provides an explosion vent with adjustable, the utility model discloses normal during operation seals through tongue-and-groove and sealed the pad, sets for the burst pressure and through calculating the back, realizes by the pulling force or the tension of spring, can adjust explosion-proof pressure in real time according to operating condition's change.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: an adjustable explosion vent comprises a connecting pipe and a second flange, wherein the second flange is arranged on the connecting pipe, the second flange is connected with a first flange, and the first flange is connected with the second flange in a sealing manner; the adjusting assembly A comprises a screw and an elastic piece, the screw is connected to the first flange, and the first flange can move along the axis direction of the screw, so that the first flange and the second flange are separately decompressed or tightly sealed.

Further, first flange adopts the tenon face flange and possesses the tenon strip, the second flange adopts the capping flange and possesses the recess, the tenon strip inlays to be established in the recess.

Furthermore, a sealing gasket is arranged in the groove, and the tenon strip abuts against the sealing gasket.

Furthermore, the elastic part adopts a spring which is sleeved on the screw rod.

Further, the adjusting assembly a further comprises a first gasket and a second gasket disposed at two ends of the spring, the first gasket is close to the free end of the screw, and the second gasket is close to the fixed end of the screw; the fixed end of the screw rod is also provided with an adjusting nut and a fastening nut.

Furthermore, the first flange is located outside the connecting pipe, one end of the screw rod is fixed on the second flange, the other end of the screw rod penetrates through the first flange, the second gasket is located outside the first flange, and the first flange moves along the screw rod to be far away from the second flange when receiving internal pressure.

Furthermore, the first flange is located outside the connecting pipe, one end of the screw rod is fixed on the first flange, the other end of the screw rod penetrates through the second flange, the second gasket is located outside the second flange, and the first flange drives the screw rod to move to be far away from the second flange when receiving internal pressure.

Furthermore, the first flange is located inside the connecting pipe, one end of the screw rod is fixed to the first flange, the other end of the screw rod penetrates through the second flange, the second gasket is located outside the second flange, and the first flange drives the screw rod to move to be far away from the second flange when being subjected to external pressure.

To sum up, the utility model discloses following technological effect has been gained:

1. the utility model adjusts the sealing pretightening force through the spring, thereby reducing the weight of the explosion door to the maximum extent and saving steel;

2. the explosion door is wide in application direction, can be applied in all directions, and does not need to consider the problem of installation angle;

3. the pressure adjusting range is wide, and the selection of the spring and the pretightening force of the nut can be adjusted according to different explosion-proof pressures;

4. the explosion-proof pressure can be adjusted in real time according to the change of the actual working condition;

5. the explosion door is composed of a screw, a nut, a gasket, a spring, a tongue-and-groove surface flange cover plate, a sealing gasket, a connecting pipe and the like, wherein the flange sealing surface is a tongue-and-groove surface. And during normal work, the sealing is carried out through the tongue-and-groove and the sealing gasket. The set burst pressure is calculated and is achieved by the tension or tension of the spring.

Drawings

Fig. 1 is a first installation pattern provided by the embodiment of the present invention;

fig. 2 is a second installation pattern provided by the embodiment of the present invention;

fig. 3 is a third installation pattern provided by the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

an adjustable explosion vent comprises a connecting pipe 1 and a second flange 3 arranged on the connecting pipe 1, wherein the second flange 3 is connected with a first flange 2, and the first flange 2 is hermetically connected with the second flange 3; the flange further comprises an adjusting assembly A, the adjusting assembly A comprises a screw rod 8 and an elastic piece, the screw rod 8 is connected to the first flange 2, and the first flange 2 can move along the axial direction of the screw rod 8, so that the first flange 2 and the second flange 3 are separated to release pressure or are sealed in a tight fit mode.

In this embodiment, the first flange 2 adopts the tenon face flange and possesses the tenon strip 21, the second flange 3 adopts the groove face flange and possesses the ring strip 31, set up recess 32 on the ring strip 31, and the tenon strip 21 inlays to be established in recess 32, and during the two butt, the realization is sealed, prevents that the inside atmospheric pressure of connecting pipe from leaking or outside atmospheric pressure from leaking in.

Further, a sealing gasket 11 is arranged in the groove 32, the sealing gasket 11 is made of a material which can be sealed, such as a rubber strip gasket, a rubber gasket and the like, and the tenon strip 21 abuts against the sealing gasket 11, so that the sealing effect is enhanced.

In this embodiment, the elastic member is a spring 4, and the spring 4 is sleeved on the screw 8 and used for attaching and resetting the first flange 2 and the second flange 3 with spring force after separation.

In this embodiment, the adjusting assembly a further includes a first gasket 5 and a second gasket 9 disposed at two ends of the spring 4, the first gasket 5 is close to the free end of the screw 8, and the second gasket 9 is close to the fixed end of the screw 8; the fixed end of the screw rod 8 is further provided with an adjusting nut 6 and a fastening nut 7, the adjusting nut 6 is used for adjusting the length of the spring 4, and the fastening nut 7 is used for ensuring the stability of the adjusting nut 6.

On the basis, the embodiment gives 3 installation modes.

The 1 st: for withstanding internal pressure:

as shown in fig. 1, the first flange 2 is located outside the connection pipe 1, the second flange 3 is fixed at the pipe orifice of the connection pipe 1, one end of the screw 8 is fixed on the second flange 3 (in fig. 1, the fixed end of the screw 8 is blocked), the other end of the screw passes through the first flange 2, and the second gasket 9 is located outside the first flange 2, so that the spring 4, the first gasket 5 and the second gasket 9, the adjusting nut 6, and the fastening nut 7 are all located above (in the direction shown in fig. 1), forming the state shown in fig. 1, when the pressure inside the device is suddenly increased, the first flange 2 moves along the screw 8 to be away from the second flange 3 when being subjected to internal pressure (in the direction shown by the arrow in the figure), the spring 4 is compressed, so that a gap occurs between the tenon 21 and the sealing gasket 11, and the air pressure inside the connection pipe 1 leaks out of the high gap. When the pressure inside the device drops to the design value, the first flange 2 is restored along the screw 8 under the action of the spring force and then sealed by the sealing gasket 11.

The 2 nd: for withstanding internal pressure:

as shown in fig. 2, the first flange 2 is located outside the connecting pipe 1, the second flange 3 is fixed at the pipe orifice of the connecting pipe 1, one end of the screw 8 is fixed on the first flange 2, the other end of the screw penetrates through the second flange 3, and the second gasket 9 is located outside the second flange 3, so that the spring 4, the first gasket 5 and the second gasket 9, the adjusting nut 6 and the fastening nut 7 are all located below (in the direction shown in fig. 2), which is opposite to the direction of the first flange 1 in fig. 1, when the pressure inside the device is suddenly increased, the screw 8 is driven to move to be far away from the second flange 3 when the first flange 2 receives the internal pressure (the arrow in the figure is the pressure direction), the spring 4 is compressed, so that a gap occurs between the tenon strip 21 and the sealing gasket 11, and the air pressure inside the connecting pipe 1 is discharged from the high gap. When the pressure inside the device drops to the design value, the first flange 2 is restored along the screw 8 under the action of the spring force and then sealed by the sealing gasket 11.

And (3) type: for withstanding external pressure:

as shown in fig. 3, the first flange 2 is located inside the connecting pipe 1, the second flange 3 is fixed at the pipe orifice of the connecting pipe 1, one end of the screw 8 is fixed on the first flange 2, the other end of the screw penetrates through the second flange 3, and the second gasket 9 is located outside the second flange 3, when the first flange 2 is subjected to external pressure (an arrow in the figure is a pressure direction), the screw 8 is driven to move to be far away from the second flange 3, so that the external pressure and the internal pressure are neutralized, and the device is prevented from being sunken due to overlarge external pressure.

In this embodiment, when the explosion vent is in type selection, the size and shape of the pipe orifice can be designed and the explosion pressure can be calculated according to the relevant standard specification, and then which type is selected for manufacturing according to the space size at the position where the explosion vent is installed.

During actual manufacturing, the number of the springs and the number of the screws are not less than three, and the springs and the screws are uniformly arranged on the circumference, so that the situation that the stress is uneven and the bursting pressure cannot reach a design value when the deviation is overlarge is avoided.

The other side of the screw rod needs to be fastened by double nuts, wherein the first nut close to the spring is an adjusting nut and used for adjusting the pressure of the spring, and the second nut is a fastening nut and used for preventing the first nut from loosening.

The spring can be a compression spring or an extension spring. When an extension spring is used, a sleeve needs to be added.

The connecting pipe can be round or rectangular according to actual conditions.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all changes and modifications equivalent to any simple modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an explosion vent with adjustable, includes connecting pipe (1), its characterized in that: the connecting pipe comprises a second flange (3) arranged on the connecting pipe (1), the second flange (3) is connected with a first flange (2), and the first flange (2) is in sealing connection with the second flange (3); the adjusting device is characterized by further comprising an adjusting assembly A, wherein the adjusting assembly A comprises a screw rod (8) and an elastic piece, the screw rod (8) is connected to the first flange (2), and the first flange (2) can move along the axis direction of the screw rod (8), so that the first flange (2) and the second flange (3) are separated, decompressed or tightly sealed.

2. An adjustable explosion vent as set forth in claim 1, wherein: first flange (2) adopt the tenon face flange and possess tenon strip (21), second flange (3) adopt the groove face flange and possess recess (32), tenon strip (21) are inlayed and are established in recess (32).

3. An adjustable explosion vent according to claim 2, wherein: a sealing gasket (11) is arranged in the groove (32), and the tenon strip (21) abuts against the sealing gasket (11).

4. An adjustable explosion vent according to claim 3, wherein: the elastic piece adopts a spring (4), and the spring (4) is sleeved on the screw rod (8).

5. An adjustable explosion vent as set forth in claim 4, wherein: the adjusting assembly A further comprises a first gasket (5) and a second gasket (9) which are arranged at two ends of the spring (4), the first gasket (5) is close to the free end of the screw rod (8), and the second gasket (9) is close to the fixed end of the screw rod (8); the fixed end of the screw rod (8) is also provided with an adjusting nut (6) and a fastening nut (7).

6. An adjustable explosion vent as set forth in claim 5, wherein: the first flange (2) is located outside the connecting pipe (1), one end of the screw rod (8) is fixed on the second flange (3), the other end of the screw rod penetrates through the first flange (2), the second gasket (9) is located outside the first flange (2), and the first flange (2) moves along the screw rod (8) to be far away from the second flange (3) when internal pressure is applied to the first flange.

7. An adjustable explosion vent as set forth in claim 5, wherein: first flange (2) are located the outside of connecting pipe (1), the one end of screw rod (8) is fixed on first flange (2), and the other end wears to establish on second flange (3), just second gasket (9) are located the outside of second flange (3), first flange (2) drive when receiving internal pressure screw rod (8) move in order to keep away from second flange (3).

8. An adjustable explosion vent according to claim 5, wherein: first flange (2) are located the inside of connecting pipe (1), the one end of screw rod (8) is fixed on first flange (2), and the other end wears to establish on second flange (3), just second gasket (9) are located the outside of second flange (3), drive when first flange (2) receive external pressure screw rod (8) motion is in order to keep away from second flange (3).