CN115046041A - High-temperature explosion venting device - Google Patents
High-temperature explosion venting device Download PDFInfo
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- CN115046041A CN115046041A CN202210820300.9A CN202210820300A CN115046041A CN 115046041 A CN115046041 A CN 115046041A CN 202210820300 A CN202210820300 A CN 202210820300A CN 115046041 A CN115046041 A CN 115046041A
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- valve body
- valve
- valve plate
- explosion venting
- water cooling
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- 238000004880 explosion Methods 0.000 title claims abstract description 52
- 238000013022 venting Methods 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 238000001816 cooling Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000003546 flue gas Substances 0.000 claims abstract description 56
- 239000000498 cooling water Substances 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000779 smoke Substances 0.000 description 9
- 239000000110 cooling liquid Substances 0.000 description 7
- 238000011065 in-situ storage Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
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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
- F16K1/46—Attachment of sealing rings
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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
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
- F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a high-temperature explosion venting device, which comprises: one side of the first valve body is used for being hermetically connected with the flue gas conveying equipment, so that a closed high-temperature flue gas conveying working space can be formed; the second valve body is connected to the other side of the first valve body in a sealing mode and combined with the first valve body to form a valve structure body; the second valve body is provided with a positioning hole; the valve plate is arranged on the second valve body in a sealing mode and used for sealing the valve structure body; the positioning rod is arranged in the positioning hole; the positioning device is sleeved on the positioning rod and at least partially pressed on the valve plate; and the water cooling structure is arranged in the first valve body, the second valve body and the valve plate. The application provides a high temperature is let out and is exploded device not only can be high temperature resistant, long service life, and the valve plate can automatic re-setting moreover, uses the reliability height.
Description
Technical Field
The invention relates to the technical field of valve devices, in particular to a high-temperature explosion venting device.
Background
In the production process of converter steelmaking, air and coal gas are changed alternately, and CO and O can appear in flue gas 2 The temperature of the mixed gas is lower than 610 ℃, and the risk of instantaneous overpressure caused by explosion exists.
At present, the explosion venting point of the converter flue gas purification and primary dust removal process is mostly arranged at a low-temperature flue gas section (the flue gas temperature is less than or equal to 200 ℃), and the explosion venting point is far away from the starting point of explosion venting, so that equipment, pipelines and the like before the explosion venting point are seriously damaged due to failure in timely explosion venting. The explosion venting point is arranged at the high-temperature section (the flue gas temperature is less than or equal to 1000 ℃) of the converter flue gas, and the high-temperature explosion venting device is arranged, so that the method has great practical significance and commercial value in the aspects of normal production of the steelmaking process, safety guarantee of related facilities and the like.
The prior art provides a common high-temperature explosion venting device structure suitable for high-temperature flue gas conditions. The structure mainly seals the high-temperature flue gas by the gravity of the valve plate. When the high-temperature flue gas explodes in the closed environment, the internal pressure suddenly rises, the valve plate of the explosion venting device is jacked open by the high-temperature flue gas, and the high-temperature flue gas is vented from the explosion venting port.
After the high-temperature valve plate in the prior art is jacked to exceed 70-90 degrees, the valve plate cannot be reset, and the following serious consequences are easily caused: if the valve plate can not be automatically reset, the process flue gas is no longer in a closed environment, and the normal production of converter steelmaking can not be carried out, so that the production is stopped. In addition, the valve plate can not reset, and the surrounding environment is in high temperature flue gas environment for a long time, and production environment safety can not ensure.
Therefore, there is a need for a high temperature explosion venting apparatus that at least solves the above-mentioned problems.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides the high-temperature explosion venting device which is high in temperature resistance, long in service life, capable of automatically resetting the valve plate and high in use reliability.
The specific technical scheme of the embodiment of the invention is as follows:
a high temperature explosion venting apparatus, comprising: one side of the first valve body is used for being hermetically connected with the flue gas conveying equipment, so that a closed high-temperature flue gas conveying working space can be formed; the second valve body is connected to the other side of the first valve body in a sealing mode and combined with the first valve body to form a valve structure body; the second valve body is provided with a positioning hole; the valve plate is arranged on the second valve body in a sealing mode and used for sealing the valve structure body; the positioning rod is arranged in the positioning hole; the positioning device is sleeved on the positioning rod and at least partially pressed on the valve plate; and the water cooling structure is arranged in the first valve body, the second valve body and the valve plate and used for cooling the first valve body, the second valve body and the valve plate.
In a preferred embodiment, the water cooling structure includes a first water cooling cavity disposed in the first valve body, the first valve body is integrally in a ring-shaped cylinder structure, and the first valve body includes: a first cylinder wall located at the inner side; the second cylinder wall is positioned on the outer side, and an annular gap is formed between the first cylinder wall and the second cylinder wall; a bottom plugging wall at one end of the annular gap; the first cylinder wall, the second cylinder wall and the bottom wall are matched to form the first water cooling cavity.
In a preferred embodiment, the water-cooling structure includes a second water-cooling cavity disposed in the second valve body, the second valve body is integrally in a revolving body structure, a hollow annular cavity is formed inside the second valve body, and the annular cavity is used for forming the second water-cooling cavity.
In a preferred embodiment, the high-temperature explosion venting device further includes a valve body cooling water pipeline, the valve body cooling water pipeline is respectively used for providing circulating cooling water for the first water cooling cavity and the second water cooling cavity, and the valve body cooling water pipeline includes a first branch for cooling the first valve body and a second branch for cooling the second valve body.
In a preferred embodiment, the water cooling structure includes a third water cooling cavity disposed in the valve plate, the valve plate is integrally in a solid of revolution structure, the valve plate is provided with a hollow annular cavity at an outer side position matched with the second valve body, and the annular cavity is used for forming the third water cooling cavity.
In a preferred embodiment, the high-temperature explosion venting device further comprises a valve plate cooling water pipeline, and the valve plate cooling water pipeline comprises a water inlet pipeline and a water outlet pipeline which are communicated with the annular cavity of the valve plate.
In a preferred embodiment, the high temperature explosion venting apparatus further comprises: a seal assembly disposed between the valve plate and the second valve body, the sealing mechanism comprising: a primary sealing unit comprising a metal face seal disposed between the valve plate and the second valve body; a secondary sealing unit comprising a first seal disposed between the valve plate and the second valve body and located at a periphery of the primary sealing unit; a tertiary sealing unit including a second seal disposed between the valve plate and the second valve body and peripheral to the first seal.
In a preferred embodiment, the first seal and the second seal comprise any one or a combination of the following: silica gel sealing member, rubber sealing member, high temperature resistant asbestos packing sealing member.
In a preferred embodiment, the smoke facing surface of the valve plate is a stainless steel plate, a filling cavity is formed inside the valve plate, and heat-resistant ceramic fibers are filled in the filling cavity.
In a preferred embodiment, the positioning device comprises: the pressing piece is sleeved on the positioning rod, and the pressing piece is pressed on a loading limiting mechanism which is deviated from the valve plate side, and the loading limiting mechanism comprises: the guide frame and the loading guide piece are axially limited through the guide frame, and the loading guide piece and the positioning rod are arranged in parallel.
In a preferred embodiment, the high-temperature explosion venting device further comprises a high-temperature flue gas collecting hood, and the high-temperature flue gas collecting hood is used for collecting the high-temperature flue gas released by the high-temperature explosion venting device.
The technical scheme of the invention has the following remarkable beneficial effects:
1. in order to ensure that the valve plate can reset in situ after jumping, the periphery of the valve plate and the upper valve body is provided with a positioning device and a positioning rod, and after the valve plate is separated from the upper valve body under the action of pressure, the valve plate can be accurately reset under the matching of the positioning device and the positioning rod and is in contact sealing with the upper valve body again. That is to say, through set up positioner and locating lever in the periphery of valve plate and last valve body that mutually supports, the high temperature that provides in the embodiment of this application lets out and explodes the device and constitutes a type high temperature that can reset in situ lets out and explodes the device, and it when using, can avoid the converter process to let out the condition of exploding and leading to the shut down production because of high temperature flue gas is urgent to appear, has solved the valve plate among the prior art better and has let out to explode for unstable structure, does not have limit structure, the problem that can not reset in situ.
2. The valve plate, the first valve body and the second valve body adopt water cooling structures, so that the valve plate, the first valve body and the second valve body can resist the baking of high-temperature flue gas, the poor sealing effect caused by the serious deformation of a pure metal heating surface is avoided, the service life of the valve body is prolonged, and the whole equipment can be suitable for the working environment of a converter flue gas high-temperature section (the flue gas temperature is less than or equal to 1000 ℃).
3. In addition, the flue gas sealing surface is provided with a tertiary seal. The primary seal adopts metal hard seal, and can isolate most high-temperature smoke; meanwhile, a small amount of high-temperature flue gas is subjected to supplementary sealing through secondary sealing and tertiary sealing, and a better sealing effect is achieved.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
Fig. 1 is a schematic structural diagram of a high-temperature explosion venting device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a high-temperature explosion venting device provided in the embodiment of the present application after a positioning device is removed;
FIG. 3 is a schematic view of the structure in the direction A of FIG. 2;
fig. 4 is a top view of a high temperature explosion venting apparatus provided in fig. 2.
The specification reference numbers:
1. a first valve body;
11. a first water cooling chamber;
2. a second valve body;
21. a second water cooling chamber;
3. a valve plate;
31. a third water cooling cavity;
4. a positioning device;
41. a pressing part;
42. a guide frame;
43. a loading guide;
5. positioning a rod;
6. a primary sealing unit;
7. a secondary sealing unit;
8. a third-stage sealing unit;
9. a valve body cooling water line;
10. valve plate cooling water pipeline.
Detailed Description
The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the application provides a high-temperature explosion venting device which is suitable for the working environment of a high-temperature section (the smoke temperature is less than or equal to 1000 ℃) of converter smoke.
Referring to fig. 1 and fig. 2 in combination, in an embodiment of the present disclosure, there is provided a high temperature explosion venting apparatus, which may include: one side of the first valve body 1 is used for being connected with a flue gas conveying device in a sealing mode, and a sealed high-temperature flue gas conveying working space can be formed; the second valve body 2 is connected to the other side of the first valve body 1 in a sealing mode, and is combined with the first valve body 1 to form a valve structure body; the second valve body 2 is provided with a positioning hole; the valve plate 3 is arranged on the second valve body 2 in a sealing mode and used for sealing the valve structure body; the positioning rod 5 is installed in the positioning hole; the positioning device 4 is sleeved on the positioning rod 5, and at least part of the positioning device 4 is pressed on the valve plate 3; and the water cooling structure is arranged in the first valve body 1, the second valve body 2 and the valve plate 3 and used for cooling the first valve body 1, the second valve body 2 and the valve plate 3.
In this embodiment, the high-temperature explosion venting device may mainly include: a first valve body 1 (i.e., a lower valve body in the drawings, and in the following embodiments, the following valve body may be described as an object), a second valve body 2 (i.e., an upper valve body in the drawings, and in the following embodiments, the above valve body may be described as an object), a valve plate 3, a positioning rod 5, a positioning device 4, a water cooling structure, and the like.
The lower valve body of the high-temperature explosion venting device is connected with large-space flue gas conveying equipment by welding or flanges to form a closed high-temperature flue gas conveying working space. A large amount of high-temperature flue gas generated in the production process enters a closed high-temperature flue gas conveying space. Wherein, the contact surface of valve plate 3 and last valve body is the sealed face of flue gas.
In the normal production process, the high-temperature explosion venting device is sealed by high-temperature smoke gas by means of the self gravity of the valve plate 3. When the pressure in the closed high-temperature flue gas conveying working space rises sharply due to flue gas explosion until the pressure exceeds the gravity of the valve plate 3, the valve plate 3 is jacked open, and the high-temperature flue gas is discharged to the external space from the outside of the flue gas sealing surface area. Subsequently, the pressure in the inner space rapidly drops in a short time due to the rapid release of the high-temperature overpressure flue gas, and when the pressure reaches a position below the self gravity of the valve plate 3, the valve plate 3 automatically restores to the original sealing state by the self gravity.
In the embodiment of the application, in order to ensure that the valve plate 3 can reset in situ after jumping, the positioning device 4 and the positioning rod 5 are arranged on the periphery of the valve plate 3 and the upper valve body, and after the valve plate 3 is separated from the upper valve body under the action of pressure, the valve plate can be reset accurately under the matching of the positioning device 4 and the positioning rod 5, and is in contact sealing with the upper valve body again. That is to say, through valve plate 3 and the peripheral setting positioner 4 and the locating lever 5 of last valve body mutually supporting, the high temperature that provides in the embodiment of this application lets out and explodes the device and constitute a type that can reset in situ high temperature lets out and explodes the device, and it when using, can avoid the converter process to let out the condition of exploding and leading to stopping production because of high temperature flue gas is urgent to appear, has solved the problem that valve plate 3 lets out when exploding for unstable structure among the prior art better, does not have limit structure, can not reset in situ.
As shown in fig. 1, the positioning device 4 may include: the cover is established the pressfitting spare 41 on the locating lever 5, the pressfitting is in the pressfitting spare 41 deviates from the loading stop gear of valve plate 3 side, loading stop gear includes: the positioning device comprises a guide frame 42 and a loading guide piece 43 which is axially limited by the guide frame 42, wherein the loading guide piece 43 is arranged in parallel with the positioning rod 5.
It should be noted that, a multi-stage elastic limiting mechanism can be further arranged in the loading limiting mechanism, and the elastic limiting mechanism can be used for limiting the valve plate 3 and preventing the valve plate from completely separating from the valve structure body under the action of pressure. For example, the number of the elastic limiting mechanisms can be set according to different pressure grades, and the lower ends of different limiting mechanisms are different from the interval of the valve plate 3, so that grading limiting is realized.
As shown in fig. 4, the number of the positioning rods 5 and the positioning devices 4 may be plural, and the plurality of positioning rods 5 and the positioning devices 4 may be uniformly arranged at intervals around the circumferential direction of the valve plate 3. The number of the positioning rods 5 and the positioning devices 4 is not specifically limited in this application, and may be, for example, 3, 4, or more or less. When the number of the positioning rods 5 and the positioning devices 4 is 4, two adjacent positioning rods 5 or two adjacent positioning devices 4 can be uniformly distributed at intervals of 90-degree circular arcs.
Referring to fig. 1, fig. 2 and fig. 3, the valve member of the high temperature explosion venting device directly contacting with the high temperature flue gas includes: lower valve body, last valve body and valve plate 3, in order to guarantee that these components are high temperature resistant, long-life, lower valve body, last valve body, valve plate 3 all are provided with water-cooling structure. The high-temperature smoke direct contact surface of the high-temperature explosion venting device adopts a water cooling structure, so that the high-temperature smoke can be resistant to baking, poor sealing effect caused by serious deformation of a pure metal heating surface is avoided, and the service life of the valve body is prolonged.
Specifically, the water-cooling structure comprises a first water-cooling cavity 11 arranged in the first valve body 1. First valve body 1 wholly is annular tubular structure, first valve body 1 includes: a first cylinder wall located at the inner side; the second cylinder wall is positioned on the outer side, and an annular gap is formed between the first cylinder wall and the second cylinder wall; a bottom plugging wall at one end of the annular gap; the first cylinder wall, the second cylinder wall and the bottom wall are matched to form the first water cooling cavity 11.
The first valve body 1 can be cooled by means of the first water cooling chamber 11. The first valve body 1 may be provided with a first inlet for introducing a cooling liquid (e.g., water) into the first water cooling chamber 11, and a first outlet for guiding the cooling liquid obtained by cooling the first valve body 1 out of the first valve body 1. When the valve is used, cooling liquid enters the first water cooling cavity 11 from the first inlet, flows through the annular gap to cool the first valve body 1, and then flows out from the first outlet.
The water-cooling structure is including setting up second water cooling chamber 21 in the second valve body 2, the whole solid of revolution structure that is of second valve body 2, the inside of second valve body 2 is formed with hollow annular cavity, the annular cavity is used for forming second water cooling chamber 21.
The second valve body 2 can be cooled by the second water cooling chamber 21. The second valve body 2 may be opened with a second inlet for introducing a coolant (e.g., water) into the second water cooling chamber 21, and a second outlet for guiding the coolant that cools the second valve body 2 out of the second valve body 2. When the valve is used, the cooling liquid enters the second water cooling cavity 21 from the second inlet, flows through the annular gap to cool the second valve body 2, and then flows out from the second outlet.
Further, the high-temperature explosion venting device further comprises a valve body cooling water pipeline 9, the valve body cooling water pipeline 9 is used for respectively providing circulating cooling water for the first water cooling cavity 11 and the second water cooling cavity 21, and the valve body cooling water pipeline 9 comprises a first branch for cooling the first valve body 1 and a second branch for cooling the second valve body 2.
In the present embodiment, the first water-cooled chamber 11 and the second water-cooled chamber 21 may share a single cooling water line, thereby simplifying the structure. The valve body cooling water pipe 9 may be a three-way structure having an inlet end and two outlet ends, wherein one of the outlet ends is connected to the first inlet of the first valve body 1, and the other outlet end is connected to the second inlet of the second valve body 2.
The water cooling structure is including setting up third water cooling chamber 31 in the valve plate 3, the whole solid of revolution structure that is of valve plate 3, valve plate 3 with second valve body 2 matched with outside position is provided with hollow annular cavity, the annular cavity is used for forming third water cooling chamber 31.
The third valve body can be cooled by the third water cooling chamber 31. The third valve body may be opened with a third inlet for introducing a coolant (e.g., water) into the third water cooling chamber 31 and a third outlet for guiding the coolant after cooling the third valve body out of the third valve body. When in use, the cooling liquid enters the third water cooling cavity 31 from the third inlet, flows through the annular gap to cool the third valve body, and then flows out from the third outlet.
Further, the high-temperature explosion venting device further comprises a valve plate cooling water pipeline 10, and the valve plate cooling water pipeline 10 comprises a water inlet pipeline and a water outlet pipeline which are communicated with the annular cavity of the valve plate 3. The water inlet pipeline is connected with a third inlet and used for introducing cooling liquid into the third inlet; the water outlet pipeline is connected with the third outlet and used for leading out the cooling liquid.
In one embodiment, the high temperature explosion venting apparatus may further include: a sealing assembly arranged between said valve plate 3 and said second valve body 2. The sealing mechanism may include: a primary sealing unit 6, said primary sealing unit 6 comprising a metal face seal disposed between said valve plate 3 and said second valve body 2; a secondary sealing unit 7, said secondary sealing unit 7 comprising a first seal disposed between said valve plate 3 and said second valve body 2 and located at the periphery of said primary sealing unit 6; a tertiary sealing unit 8, said tertiary sealing unit 8 comprising a second seal disposed between said valve plate 3 and said second valve body 2 and located at the periphery of said first seal. The flue gas sealing surface is provided with a three-stage sealing unit 8.
The primary sealing unit 6 is hard-sealed by metal, and can isolate most high-temperature smoke. Meanwhile, a small amount of high-temperature flue gas is subjected to supplementary sealing through the secondary sealing unit 7 and the tertiary sealing unit 8, namely, the medium leaked in the primary seal 6 is cooled through cooling water and then is subjected to secondary sealing and tertiary sealing, so that reliable sealing at high temperature is realized. Specifically, the first sealing element and the second sealing element comprise any one or a combination of the following components: silica gel sealing member, rubber sealing member, high temperature resistant asbestos packing sealing member.
In one embodiment, in order to improve the heat resistance of the valve plate 3, the smoke facing surface of the valve plate 3 is a stainless steel plate, and a filling cavity is formed inside the valve plate 3 and filled with heat-resistant ceramic fibers.
In one embodiment, the high-temperature explosion venting device further comprises a high-temperature flue gas collecting cover, and the high-temperature flue gas collecting cover is used for collecting the high-temperature flue gas released by the high-temperature explosion venting device.
The high-temperature flue gas discharged from the high-temperature explosion venting device is not suitable for being discharged in a relatively closed space in a workshop due to the characteristics of high temperature, large impact and the like. The high temperature let out explode device that this application provided is provided with the high temperature flue gas in letting out explode device relief area and collects the cover, can discharge the high temperature flue gas of releasing to the safety ring border outside the workshop through collecting cover and subsidiary exhaust gas channel. The high-temperature flue gas collecting cover is a closed space, a gas alarm facility and a monitoring system are arranged in the high-temperature flue gas collecting cover, no personnel operation requirement exists during normal production, and the high-temperature flue gas collecting cover can be completely divided from an external space.
It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.
The above embodiments are only a few embodiments of the present invention, and the embodiments of the present invention are described above, but the present invention is only used for the understanding of the present invention, and is not limited to the embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A high temperature explosion venting device, characterized in that it comprises:
one side of the first valve body is used for being hermetically connected with the flue gas conveying equipment, so that a closed high-temperature flue gas conveying working space can be formed;
the second valve body is connected to the other side of the first valve body in a sealing mode and combined with the first valve body to form a valve structure body; the second valve body is provided with a positioning hole;
the valve plate is arranged on the second valve body in a sealing mode and used for sealing the valve structure body;
the positioning rod is arranged in the positioning hole;
the positioning device is sleeved on the positioning rod and at least partially pressed on the valve plate;
and the water cooling structure is arranged in the first valve body, the second valve body and the valve plate and used for cooling the first valve body, the second valve body and the valve plate.
2. The high-temperature explosion venting device according to claim 1, wherein the water cooling structure comprises a first water cooling cavity disposed in the first valve body, the first valve body is integrally in a ring-shaped cylinder structure, and the first valve body comprises:
a first cylinder wall located at the inner side;
the second cylinder wall is positioned on the outer side, and an annular gap is formed between the first cylinder wall and the second cylinder wall;
a bottom plugging wall at one end of the annular gap;
the first cylinder wall, the second cylinder wall and the bottom wall are matched to form the first water cooling cavity.
3. The high-temperature explosion venting device according to claim 2, wherein the water cooling structure comprises a second water cooling cavity disposed in the second valve body, the second valve body is a revolving structure as a whole, and a hollow annular cavity is formed inside the second valve body and is used for forming the second water cooling cavity.
4. The high temperature explosion venting device according to claim 3, further comprising a valve body cooling water line for supplying circulating cooling water to the first water cooling chamber and the second water cooling chamber, respectively, the valve body cooling water line comprising a first branch for cooling the first valve body and a second branch for cooling the second valve body.
5. The high-temperature explosion venting device according to claim 4, wherein the water cooling structure comprises a third water cooling cavity arranged in the valve plate, the valve plate is integrally in a solid of revolution structure, the valve plate is provided with a hollow annular cavity at an outer side position matched with the second valve body, and the annular cavity is used for forming the third water cooling cavity.
6. The high temperature explosion venting device of claim 5, further comprising a valve plate cooling water line comprising a water inlet conduit and a water outlet conduit in communication with the annular cavity of the valve plate.
7. A high temperature explosion venting apparatus according to any one of claims 1 to 6, further comprising: a seal assembly disposed between the valve plate and the second valve body, the sealing mechanism comprising:
a primary sealing unit comprising a metal face seal disposed between the valve plate and the second valve body;
a secondary sealing unit comprising a first seal disposed between the valve plate and the second valve body and located at a periphery of the primary sealing unit;
a tertiary sealing unit including a second seal disposed between the valve plate and the second valve body and peripheral to the first seal.
8. The high temperature explosion venting device of claim 7, wherein the first seal and the second seal comprise any one or a combination of the following: silica gel sealing member, rubber sealing member, high temperature resistant asbestos packing sealing member.
9. A high-temperature explosion venting device as defined in any one of claims 1 to 6, wherein the flue gas facing surface of the valve plate is a stainless steel plate, a filling cavity is formed inside the valve plate, and heat-resistant ceramic fibers are filled inside the filling cavity.
10. A high temperature explosion venting device according to any one of claims 1 to 6, wherein the positioning means comprises: the pressing piece is sleeved on the positioning rod, and the pressing piece is pressed on a loading limiting mechanism which is deviated from the valve plate side, and the loading limiting mechanism comprises: the guide frame and the loading guide piece are axially limited through the guide frame, and the loading guide piece and the positioning rod are arranged in parallel.
11. The high-temperature explosion venting device according to claim 1, further comprising a high-temperature flue gas collecting hood for collecting the high-temperature flue gas discharged from the high-temperature explosion venting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210820300.9A CN115046041A (en) | 2022-07-13 | 2022-07-13 | High-temperature explosion venting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210820300.9A CN115046041A (en) | 2022-07-13 | 2022-07-13 | High-temperature explosion venting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115046041A true CN115046041A (en) | 2022-09-13 |
Family
ID=83164533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210820300.9A Pending CN115046041A (en) | 2022-07-13 | 2022-07-13 | High-temperature explosion venting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115046041A (en) |
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2022
- 2022-07-13 CN CN202210820300.9A patent/CN115046041A/en active Pending
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