CN217271912U

CN217271912U - Air cushion combined type sealed emergency relief valve

Info

Publication number: CN217271912U
Application number: CN202220068217.6U
Authority: CN
Inventors: 闫正伟; 屠根栋; 裘清清; 高同顺; 孙建春
Original assignee: Wujiang Tianwu Special Safety Valve Co ltd
Current assignee: Wujiang Tianwu Special Safety Valve Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-08-23
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a sealed urgent bleeder valve of air cushion combined type, which comprises a valve body, the disk seat is installed to the bottom of valve body, the leading truck is installed to the inboard of valve body, the valve disc is installed to the upper end of valve body, the inboard rigidity of valve disc has diaphragm and diaphragm clamp plate, the balancing weight is installed to the upper end of valve disc, the bolt is installed with the position that the valve disc is connected to the leading truck, the mid-mounting of balancing weight has the round pin axle, the locating pin is installed to the bottom of round pin axle, the pull ring is installed to the upper end of round pin axle, the negative pressure subassembly is installed to the middle part position of valve disc, the negative pressure seat is installed to the inboard position of negative pressure subassembly. A sealed urgent bleeder valve of air cushion combined type, have that the level pressure discharges, the level pressure inhales, the switching is nimble, overall structure is compact, sealing performance is good, advantages such as safe and reliable to the switching of valve disc is adjusted to the counter weight of definite value, on-the-spot change easy maintenance.

Description

Air cushion combined type sealed emergency relief valve

Technical Field

The utility model relates to a bleeder valve field, in particular to sealed urgent bleeder valve of air cushion combined type.

Background

The relief valve is a supporting device capable of executing emergency pressure relief and vacuum pressure relief, the emergency relief valve is a safe emergency ventilation device vertically arranged at the top of the storage tank, the emergency relief valve is matched with the breather valve for use, and the emergency relief valve basically keeps a sealing state under the normal working condition of the breather valve; the valve remains substantially sealed; when the normal work of breather valve had not satisfied causing the interior sudden and violent superpressure of storage tank because of unexpected reason, the pressure release lid of the valve of promptly releasing is automatic to be opened, carry out urgent pressure release, make storage tank internal pressure keep normal, when storage tank internal pressure reduces to the specified value, the valve clack is in time closed, form sealedly, otherwise, when the sharp decompression of pressure in the storage tank or the supercavity, the valve clack of negative pressure end is opened, the atmosphere is inhaled suddenly, maintain the interior normal pressure of jar, along with the continuous development of science and technology, people are also higher and higher to the manufacturing process requirement of releasing the valve.

The existing relief valve has certain defects when in use, and the weight of a machined valve disc is difficult to control, so that the pressure error of the emergency relief valve is large during pressure testing; and the machined valve disc is high in cost, the period from purchasing to processing is long, the delivery period is influenced, certain adverse effect is brought to the use process of people, and therefore the air cushion composite type sealed emergency relief valve is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art's not enough, the utility model provides a sealed urgent bleeder valve of air cushion combined type has that the level pressure discharges, the level pressure inhales, advantages such as the switching is nimble, overall structure is compact, sealing performance is good, safe and reliable to the switching that valve disc was adjusted to the counter weight of definite value, field replacement easy maintenance can effectively solve the problem in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a sealed emergency relief valve of air cushion combined type, includes the valve body, the disk seat is installed to the bottom of valve body, the leading truck is installed to the inboard of valve body, the valve disc is installed to the upper end of valve body, the inboard rigidity of valve disc has diaphragm and diaphragm clamp plate, the balancing weight is installed to the upper end of valve disc.

Preferably, a bolt is installed at the position where the guide frame is connected with the valve disc, a pin shaft is installed in the middle of the balancing weight, a positioning pin is installed at the bottom of the pin shaft, and a pull ring is installed at the upper end of the pin shaft.

Preferably, a negative pressure assembly is installed in the middle of the valve disc, a negative pressure seat is installed in the inner side of the negative pressure assembly, a valve rod is installed in the middle of the negative pressure seat, and a connector is arranged at the position where the bottom of the negative pressure assembly is connected with the valve disc.

Preferably, the guide frame and the valve body are positioned, the top of the guide frame is positioned with the bottom of the valve disc through a bolt, and the bottom side of the valve disc is fixedly connected with the diaphragm and the diaphragm pressing plate.

Preferably, the upper end position of the valve disc is positioned through a connector and the lower end position of the negative pressure assembly, and the negative pressure seat is connected with the negative pressure assembly in a positioning mode.

Preferably, the inner wall of the valve body and the guide frame are positioned, the valve disc, the diaphragm and the diaphragm pressing plate are positioned through bolts, and skirt edges are arranged at two ends of the valve disc.

(III) advantageous effects

Compared with the prior art, the utility model provides a sealed urgent bleeder valve of air cushion combined type possesses following beneficial effect: the air cushion composite sealed emergency relief valve has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, compact integral structure, good sealing performance, safety, reliability and the like, the valve disc is adjusted to be opened and closed by a constant-value counterweight, the valve disc is convenient to replace and maintain on site, a basic valve disc designed according to the conventional pressure is adjusted to be opened by the constant-value counterweight, and the valve disc under different pressures can be stocked in batches; the valve disc is formed by punching, so that machining is omitted, the delivery period is shortened, and the cost is reduced; the design of shirt rim has the recoil effect, can make the valve disc open fast, and can guarantee that the valve reaches and opens entirely under lower superpressure, the diaphragm adopts the combined type, adopt one deck or multilayer rubber materials to set the end, seal face is formed with FEP promptly perfluoroethylene propylene copolymer combination, replace original PTFE promptly polytetrafluoroethylene, the air cushion groove of diaphragm cooperation valve disc forms an air cushion layer when sealed, sealing performance is good, the diaphragm is the soft material of multilayer and constitutes, can compensate the valve body deformation that leads to owing to receiving the influence of external force when screwing up the fastener promptly when the valve installation, guarantee sealedly, whole bleeder valve simple structure, high durability and convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic structural view of the emergency pressure relief in the air cushion composite sealed emergency relief valve of the present invention.

Fig. 2 is a schematic structural view of vacuum release in an air cushion composite sealed emergency release valve of the present invention.

In the figure: 1. a valve body; 2. a valve disc; 3. a membrane; 4. a diaphragm pressing plate; 5. a guide frame; 6. a balancing weight; 7. a negative pressure assembly; 8. a pin shaft; 9. a pull ring; 10. a bolt; 11. positioning pins; 12. a valve stem; 13. a negative pressure seat; 14. a connector; 15. a valve seat.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 and 2, the air cushion combined type sealed emergency relief valve comprises a valve body 1, a valve seat 15 is installed at the bottom of the valve body 1, a guide frame 5 is installed on the inner side of the valve body 1, a valve disc 2 is installed at the upper end of the valve body 1, a diaphragm 3 and a diaphragm pressing plate 4 are fixed at the inner side of the valve disc 2, and a balancing weight 6 is installed at the upper end of the valve disc 2.

Further, a bolt 10 is installed at the position where the guide frame 5 is connected with the valve disc 2, a pin shaft 8 is installed in the middle of the balancing weight 6, a positioning pin 11 is installed at the bottom of the pin shaft 8, and a pull ring 9 is installed at the upper end of the pin shaft 8.

Furthermore, the guide frame 5 and the valve body 1 are positioned, the top of the guide frame 5 is positioned with the bottom of the valve disc 2 through a bolt 10, and the bottom of the valve disc 2 is fixedly connected with the diaphragm 3 and the diaphragm pressing plate 4.

Furthermore, the inner wall of the valve body 1 and the guide frame 5 are positioned, the valve disc 2, the diaphragm 3 and the diaphragm pressing plate 4 are positioned through bolts 10, and skirt edges are arranged at two ends of the valve disc 2.

Example two:

on the basis of the first embodiment, as shown in fig. 1 and 2, the air cushion combined type sealed emergency relief valve comprises a valve body 1, a valve seat 15 is installed at the bottom of the valve body 1, a guide frame 5 is installed on the inner side of the valve body 1, a valve disc 2 is installed at the upper end of the valve body 1, a diaphragm 3 and a diaphragm pressing plate 4 are fixed at the inner side position of the valve disc 2, and a balancing weight 6 is installed at the upper end of the valve disc 2.

Further, a negative pressure assembly 7 is installed in the middle of the valve disc 2, a negative pressure seat 13 is installed in the inner side of the negative pressure assembly 7, a valve rod 12 is installed in the middle of the negative pressure seat 13, and a connector 14 is arranged at the position where the bottom of the negative pressure assembly 7 is connected with the valve disc 2.

Furthermore, the upper end position of the valve disc 2 is positioned with the lower end position of the negative pressure assembly 7 through the connector 14, and the negative pressure seat 13 is connected with the negative pressure assembly 7 in a positioning manner.

The working principle is as follows: the utility model comprises a valve body 1, a valve disc 2, a diaphragm 3, a diaphragm pressing plate 4, a guide frame 5, a balancing weight 6, a negative pressure component 7, a pin shaft 8, a pull ring 9, a bolt 10, a positioning pin 11, a valve rod 12, a negative pressure seat 13, a connector 14 and a valve seat 15, wherein when the valve is used, a basic valve disc 2 is designed according to the conventional pressure, the valve clacks under different pressures are adjusted to be opened by a constant counter weight, and the valve clacks can be stocked in batches; the valve disc 2 is formed by punching, so that machining is omitted, the delivery period is shortened, the cost is reduced, the valve disc 2 is provided with an air cushion groove and a skirt edge, and the sealing performance is improved due to the design of the air cushion groove; the design of shirt rim has the recoil effect, can make valve disc 2 open fast, and can guarantee that the valve reaches full-open under lower superpressure, diaphragm 3 adopts the combined type, adopt one deck or multilayer rubber materials to play the bottom, it forms to combine with FEP namely perfluoroethylene propylene copolymer on the sealed face, replace original PTFE promptly polytetrafluoroethylene, diaphragm 3 cooperates the air cushion groove of valve disc 2 and forms an air cushion layer when sealed, sealing performance is good, diaphragm 3 is the soft material of multilayer and constitutes, can compensate the valve body 1 deformation that leads to owing to the influence that receives external force when screwing up the fastener promptly when the valve is installed, guarantee to seal, have the constant pressure and discharge, the constant pressure inhales, the switching is nimble, overall structure is compact, sealing performance is good, safety and reliability etc. advantages, adjust the switching of valve disc 2 with the counter weight of definite value, the field replacement maintenance is convenient.

It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An air cushion composite sealed emergency relief valve, comprising a valve body (1), characterized in that: disk seat (15) are installed to the bottom of valve body (1), leading truck (5) are installed to the inboard of valve body (1), valve disc (2) are installed to the upper end of valve body (1), the inboard position of valve disc (2) is fixed with diaphragm (3) and diaphragm clamp plate (4), balancing weight (6) are installed to the upper end of valve disc (2).

2. The air-cushion composite sealing emergency relief valve of claim 1, wherein: bolt (10) are installed to the position that leading truck (5) and valve disc (2) are connected, the mid-mounting of balancing weight (6) has round pin axle (8), locating pin (11) are installed to the bottom of round pin axle (8), pull ring (9) are installed to the upper end of round pin axle (8).

3. The air-cushion composite sealing emergency relief valve of claim 1, wherein: negative pressure subassembly (7) are installed to the intermediate position of valve disc (2), negative pressure seat (13) are installed to the inboard position of negative pressure subassembly (7), the mid-mounting of negative pressure seat (13) has valve rod (12), the position that negative pressure subassembly (7) bottom and valve disc (2) are connected is provided with connector (14).

4. The air-cushion composite sealing emergency relief valve of claim 2, wherein: the valve is characterized in that the guide frame (5) and the valve body (1) are positioned and installed, the top of the guide frame (5) is positioned with the bottom of the valve disc (2) through a bolt (10), and the bottom side of the valve disc (2) is fixedly connected with the diaphragm (3) and the diaphragm pressing plate (4).

5. The air-cushion composite sealing emergency relief valve of claim 3, wherein: the upper end position of the valve disc (2) is positioned through a connector (14) and the lower end position of the negative pressure assembly (7), and the negative pressure seat (13) is connected with the negative pressure assembly (7) in a positioning mode.

6. The air-cushion composite sealing emergency relief valve of claim 1, wherein: the valve is characterized in that the inner wall of the valve body (1) and the guide frame (5) are positioned, the valve disc (2), the diaphragm (3) and the diaphragm pressing plate (4) are positioned through bolts (10), and skirt edges are arranged at two ends of the valve disc (2).