CN111396606A - Spring type reusable flameless explosion venting valve - Google Patents
Spring type reusable flameless explosion venting valve Download PDFInfo
- Publication number
- CN111396606A CN111396606A CN202010358147.3A CN202010358147A CN111396606A CN 111396606 A CN111396606 A CN 111396606A CN 202010358147 A CN202010358147 A CN 202010358147A CN 111396606 A CN111396606 A CN 111396606A
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- valve
- spring
- groove
- valve seat
- disc
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a spring type reusable flameless explosion venting valve which comprises a valve disc, a valve seat, a valve cover, a fire retardant sheet and a spring, wherein the valve disc is provided with a central through hole; the valve cover is fixedly connected with the valve disc through an equipment connecting bolt; the middle part of the valve cover is connected with the middle part of the valve seat through the spring, and the spring presses the outer edge of the valve seat on the valve disc. When explosion occurs, the explosion pressure exceeds the set spring pressure of the flameless explosion venting valve system, so that the spring pressure is promoted, and the subsequent explosion flame passes through the explosion venting cavity, and the flame is prevented from spreading and extinguishing by utilizing the heat transfer effect and the wall effect of the flame barrier sheet.
Description
Technical Field
The invention relates to the technical field of dust explosion venting, in particular to a spring type reusable flameless explosion venting valve.
Background
With the development of modern industry, the potential danger of dust explosion is greatly increased, when the dust explosion is mixed with air during processing, treatment or storage operation, the explosion can cause ignition of combustible gas, mist or dust, rapid pressure rise occurs in a closed structure, meanwhile, if the explosion pressure is not borne by enough strength, serious loss and casualties can be caused, the severity of accident consequences can be effectively reduced by the flameless explosion venting valve, the flameless explosion venting valve not only can control the shock wave pressure released by explosion, but also can quench flame to control the shock wave temperature in the releasing process, so that surrounding equipment cannot be damaged, the safety of production personnel is guaranteed, and meanwhile, the occurrence of secondary explosion of combustible dust is effectively restrained.
Disclosure of Invention
According to the technical problem, the spring type reusable flameless explosion venting valve is provided.
The technical means adopted by the invention are as follows:
a spring type reusable flameless explosion venting valve comprises a valve disc, a valve seat, a valve cover, a fire-retardant sheet and a spring, wherein the valve disc is provided with a central through hole, the valve seat is arranged on the valve disc, the outer edge of the valve seat is connected with the inner edge of the valve disc, the valve cover is arranged above the valve seat,
the fire retardant sheet is barrel-shaped, the top of the fire retardant sheet is in contact connection with the lower surface of the outer edge of the valve cover, and the bottom of the fire retardant sheet is fixedly connected with the outer edge of the valve disc through a bolt; a plurality of vertical equipment connecting bolts are uniformly distributed around the axis of the valve disc, the valve cover and the valve disc are fixedly connected through the equipment connecting bolts, the equipment connecting bolts extend downwards to extend through the valve disc to be connected with equipment, and the opening of the equipment is opposite to the central through hole; the fire retardant sheet prevents flame generated by explosion from spreading outwards, and plays a role in fire retardation.
The middle part of the valve cover is connected with the middle part of the valve seat through the spring, and the spring presses the outer edge of the valve seat on the valve disc. The valve disc is directly contacted with the opening position of the equipment, and the flange type hard sealing effect is achieved.
The space enclosed by the valve cover, the valve seat and the fire-retardant sheet forms an explosion venting cavity, when explosion occurs, the explosion pressure can exceed the preset spring pressure of the spring to promote the spring to be further compressed, a gap is formed between the outer edge of the bottom of the valve seat and the inner edge of the valve disc at the moment, then explosion flame can enter the explosion venting cavity, and the flame is prevented from spreading and extinguishing by utilizing the heat transfer effect and the wall effect of the fire-retardant sheet.
Furthermore, a sealing ring arranged at the inner edge of the valve disc is arranged between the outer edge of the valve seat and the inner edge of the valve disc, so that high sealing performance is achieved.
Furthermore, the spring is a tower-shaped spring, the small end of the tower-shaped spring is connected with the lower surface of the valve cover, and the large end of the tower-shaped spring is connected with the upper surface of the valve seat. The setting of tower type spring can make the spring more stable in letting out the state that explodes the cavity, prevents to take place to empty the phenomenon under the circumstances of slope atress. The tower-shaped spring is used as a pressure-bearing element and can be used for multiple times, so that the using times of the product are increased, and the service life of the product is prolonged.
Furthermore, a groove I which is sunken downwards is formed in the middle of the valve seat, the wall of the groove I inclines towards the center of the valve seat, the bottom of the groove I protrudes upwards to form an arc surface I, the large end of the tower-shaped spring is arranged in the groove I, and the arc surface I is arranged in the tower-shaped spring;
the middle part of the valve cover protrudes upwards to form an arc surface II, a groove II which is sunken downwards is arranged at the center of the arc surface II, the groove wall of the groove II inclines towards the center of the valve cover, the small end of the tower-shaped spring is sleeved on the outer wall of the groove II, and the groove II is arranged in the small end of the tower-shaped spring. The structure setting of disk seat and valve gap can make tower type spring more firm in letting out explode the cavity, the phenomenon that tower type spring emptys can not appear. And when the explosion does not occur, the outer edge of the valve seat can be tightly contacted with the inner edge of the valve disc.
Further, the valve cover and the valve seat are formed by one-time stamping.
Further, the outer diameter of the fire retardant sheet is matched with the outer diameter of the valve disc, the outer diameter of the valve cover is larger than the outer diameter of the valve disc, and the outer edge of the valve cover inclines downwards.
Further, a sleeve for guiding the equipment connecting bolt is arranged between the valve cover and the valve seat, and the inner wall of the fire retardant sheet is attached to the sleeve.
Furthermore, the valve cover is provided with a lifting lug, so that the valve cover is convenient to use and lift.
Compared with the prior art, the invention has the following advantages:
1. the tower-shaped spring is used as a pressure-bearing element and can be used for multiple times, so that the using times of the product are increased, and the service life of the product is prolonged.
2. The sealing ring is used as a sealing element between the valve seat and the valve disc, and high sealing performance can be achieved.
3. The lug is installed on the valve cap, convenient transportation and installation.
4. The action is sensitive, reliable and accurate correspondingly.
Based on the reasons, the invention can be widely popularized in the fields of dust explosion suppression control technology and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 semi-sectional view of a spring type reusable flameless explosion venting valve according to an embodiment of the present invention.
In the figure: 1. a valve disc; 2. a seal ring; 3. a valve seat; 4. a sleeve; 5. a fire retardant sheet; 6. a valve cover; 7. an equipment connecting bolt; 8. lifting lugs; 9. springs (tower springs); 10. a groove I; 11. an arc surface I; 12. an arc surface II; 13. and a groove II.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in figure 1, the invention provides a spring type reusable flameless explosion venting valve, which comprises a valve disc 1, a valve seat 3, a valve cover 6, fire-retardant sheets 5 and a spring 9, wherein the valve disc 1 is provided with a central through hole, the valve seat 3 is arranged on the valve disc 1, the outer edge of the valve seat 3 is connected with the inner edge of the valve disc 1, the valve cover 6 is arranged above the valve seat 3,
the fire retardant sheet 5 is barrel-shaped, the top of the fire retardant sheet 5 is in contact connection with the lower surface of the outer edge of the valve cover 6, and the bottom of the fire retardant sheet 5 is fixedly connected with the outer edge of the valve disc 1 through a bolt; a plurality of vertical equipment connecting bolts 7 are uniformly distributed around the axis of the valve disc 1, the equipment connecting bolts 7 fixedly connect the valve cover 6 with the valve disc 1, the equipment connecting bolts 7 extend downwards to extend through the valve disc 6 to be connected with equipment, and the opening of the equipment is opposite to the central through hole; the fire-retardant sheet 5 prevents flame generated by explosion from spreading outwards, and plays a role in fire retardation.
The middle part of the valve cover 6 is connected with the middle part of the valve seat 3 through the spring 9, and the spring 9 presses the outer edge of the valve seat 3 on the valve disc 1.
The space enclosed by the valve cover 6, the valve seat 3 and the fire retardant sheet 5 forms an explosion venting cavity, when explosion occurs, the explosion pressure can exceed the preset spring pressure of the spring 9 to promote the spring 9 to be further compressed, a gap is formed between the outer edge of the bottom of the valve seat 3 and the inner edge of the valve disc 1, then the coming explosion flame can enter the explosion venting cavity, and the flame is prevented from spreading and extinguishing by utilizing the heat transfer effect and the wall effect of the fire retardant sheet 5.
Furthermore, a sealing ring 2 arranged at the inner edge of the valve disc 1 is arranged between the outer edge of the valve seat 3 and the inner edge of the valve disc 1, so that high sealing performance is achieved.
Further, the spring 9 is a tower spring 9, a small end of the tower spring 9 is connected with the lower surface of the valve cover 6, and a large end of the tower spring 9 is connected with the upper surface of the valve seat 3. The arrangement of the tower-shaped spring 9 can enable the state of the spring 9 in the explosion venting cavity to be more stable, and the phenomenon of dumping under the condition of inclined stress is prevented. The tower-shaped spring 9 is used as a pressure-bearing element and can be used for multiple times, so that the using times of the product are increased, and the service life of the product is prolonged.
Furthermore, a groove I10 which is recessed downwards is formed in the middle of the valve seat 3, the wall of the groove I10 inclines towards the center of the valve seat 3, the bottom of the groove I10 protrudes upwards to form an arc surface I11, the large end of the tower-shaped spring 9 is arranged in the groove I10, and the arc surface I11 is arranged in the tower-shaped spring 9;
the middle part of the valve cover 6 protrudes upwards to form an arc surface II 12, a groove II 13 which is sunken downwards is arranged at the center of the arc surface II 12, the groove wall of the groove II 13 inclines towards the center of the valve cover 6, the outer wall of the groove II 13 is sleeved with the small end of the tower-shaped spring 9, and the groove II 13 is arranged in the small end of the tower-shaped spring 9. The structure of the valve seat 3 and the valve cover 6 can ensure that the tower-shaped spring 9 is firmer in the explosion venting cavity, and the phenomenon that the tower-shaped spring 9 topples over can not occur. And the outer edge of the valve seat 3 can be closely contacted with the inner edge of the valve disc when explosion does not occur.
Further, the valve cover 6 and the valve seat 3 are formed by one-time stamping.
Further, the outer diameter of the fire retardant plate 5 is matched with that of the valve disc 6, the outer diameter of the valve cover 6 is larger than that of the valve disc, and the outer edge of the valve cover 6 inclines downwards.
Further, a sleeve 4 guiding the equipment connecting bolt 7 is arranged between the valve cover 6 and the valve seat 3, and the inner wall of the fire retardant sheet 5 is abutted against the sleeve 4.
Furthermore, a lifting lug 8 is arranged on the valve cover 6, so that the valve cover is convenient to use and lift.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A spring type reusable flameless explosion venting valve is characterized by comprising a valve disc, a valve seat, a valve cover, a fire retardant sheet and a spring, wherein the valve disc is provided with a central through hole, the valve seat is arranged on the valve disc, the outer edge of the valve seat is connected with the inner edge of the valve disc, the valve cover is arranged above the valve seat,
the fire retardant sheet is barrel-shaped, the top of the fire retardant sheet is in contact connection with the lower surface of the outer edge of the valve cover, and the bottom of the fire retardant sheet is fixedly connected with the outer edge of the valve disc through a bolt; a plurality of vertical equipment connecting bolts are uniformly distributed around the axis of the valve disc, the valve cover and the valve disc are fixedly connected through the equipment connecting bolts, the equipment connecting bolts extend downwards to extend through the valve disc to be connected with equipment, and the opening of the equipment is opposite to the central through hole;
the middle part of the valve cover is connected with the middle part of the valve seat through the spring, and the spring presses the outer edge of the valve seat on the valve disc.
2. The spring type reusable flameless explosion venting valve according to claim 1, wherein: and a sealing ring arranged at the inner edge of the valve disc is arranged between the outer edge of the valve seat and the inner edge of the valve disc.
3. The spring type reusable flameless explosion venting valve according to claim 1, wherein: the spring is a tower-shaped spring, the small end of the tower-shaped spring is connected with the lower surface of the valve cover, and the large end of the tower-shaped spring is connected with the upper surface of the valve seat.
4. The spring type reusable flameless explosion venting valve according to claim 3, wherein a groove I which is recessed downwards is formed in the middle of the valve seat, the groove wall of the groove I inclines towards the center of the valve seat, the groove bottom of the groove I protrudes upwards to form an arc surface I, the large end of the tower spring is arranged in the groove I, and the arc surface I is arranged in the tower spring;
the middle part of the valve cover protrudes upwards to form an arc surface II, a groove II which is sunken downwards is arranged at the center of the arc surface II, the groove wall of the groove II inclines towards the center of the valve cover, the small end of the tower-shaped spring is sleeved on the outer wall of the groove II, and the groove II is arranged in the small end of the tower-shaped spring.
5. A spring loaded reusable flameless venting valve as claimed in claim 1 wherein: the valve cover and the valve seat are formed by one-time stamping.
6. A spring loaded reusable flameless venting valve as claimed in claim 1 wherein: the outer diameter of the fire retardant sheet is matched with the outer diameter of the valve disc, the outer diameter of the valve cover is larger than the outer diameter of the valve disc, and the outer edge of the valve cover inclines downwards.
7. A spring loaded reusable flameless venting valve as claimed in claim 1 wherein: a sleeve for guiding the equipment connecting bolt is arranged between the valve cover and the valve seat, and the inner wall of the fire retardant sheet is attached to the sleeve.
8. A spring loaded reusable flameless venting valve as claimed in claim 1 wherein: the valve cover is provided with a lifting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358147.3A CN111396606A (en) | 2020-04-29 | 2020-04-29 | Spring type reusable flameless explosion venting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358147.3A CN111396606A (en) | 2020-04-29 | 2020-04-29 | Spring type reusable flameless explosion venting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396606A true CN111396606A (en) | 2020-07-10 |
Family
ID=71437440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010358147.3A Pending CN111396606A (en) | 2020-04-29 | 2020-04-29 | Spring type reusable flameless explosion venting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115721895A (en) * | 2022-12-30 | 2023-03-03 | 郑州中泰安科粉体科技有限公司 | Repeated flameless discharge device |
-
2020
- 2020-04-29 CN CN202010358147.3A patent/CN111396606A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115721895A (en) * | 2022-12-30 | 2023-03-03 | 郑州中泰安科粉体科技有限公司 | Repeated flameless discharge device |
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