CN118030913B - Integral jacket heat-insulating fire-retarding breather valve - Google Patents
Integral jacket heat-insulating fire-retarding breather valve Download PDFInfo
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- CN118030913B CN118030913B CN202410426693.4A CN202410426693A CN118030913B CN 118030913 B CN118030913 B CN 118030913B CN 202410426693 A CN202410426693 A CN 202410426693A CN 118030913 B CN118030913 B CN 118030913B
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Abstract
The invention discloses an integrated jacket heat-insulating fire-retarding breather valve, which relates to the technical field of breather valves and comprises a shell unit, a fire retarding unit, a valve seat and a valve seat, wherein the fire retarding unit comprises a fire retarding seat arranged on a shell part, a fire retarding air passage arranged on the fire retarding seat and a fire retarding disk arranged between the fire retarding seat and the shell part; and the breathing unit comprises a ventilation end arranged at the shell part, a first conical valve core component, a second conical valve core component and a protective valve core component which is rotatably arranged on the top cover and connected with the second conical valve core component. The valve disc of the integrated jacket heat-insulating fire-retarding breather valve adopts a conical design, so that the change of air pressure can be timely felt when air flows pass through, the sensitivity of the breather valve is improved, meanwhile, the arrangement of the conical valve core assembly I and the conical valve core assembly II can greatly improve the operating pressure range of the storage tank, the phenomenon of leakage caused by overhigh air pressure is avoided, and illegal discharge of VOCs and nitrogen seal gas in the storage tank where the breather valve is located is effectively reduced.
Description
Technical Field
The invention relates to the technical field of breather valves, in particular to an integrated jacket heat-preservation fire-retarding breather valve.
Background
An integrated fire-resistant breather valve is a safety device commonly used in explosion-proof or fire-proof equipment. The function of the device is mainly to control the flow of the internal and external gases by adjusting the pressure, so that the device can effectively ventilate and ventilate, and prevent the fire from spreading.
Such a fire-resistant breather valve can reduce the risk of fire or explosion by preventing flames or high-temperature gas from entering the inside of the apparatus. Meanwhile, the pressure difference between the inside and the outside of the equipment can be balanced, and the stable operation of the equipment is ensured. In some special environments, such as industrial fields or dangerous goods storage areas, the use of the integrated fire-retarding breather valve can play an important role in safety protection. The existing breather valve heat preservation measures mainly adopt local jacket heat preservation or electric heating or steam coil heating, the heat preservation effect is poor, the phenomenon that local areas inside the valve body are coagulated can be caused, and the breather valve cannot work normally.
Disclosure of Invention
The invention is provided in view of the problems of the existing integral jacket heat-insulating fire-retarding breather valve.
Therefore, the invention provides an integrated jacket heat-insulating fire-retarding breather valve, which aims to: the technical problems that the sensitivity of the traditional breather valve to the change of the air pressure of the connected tank body is low, the weak change of the air pressure in the tank body cannot be regulated, and when the air pressure temperature of the tank body connected with the breather valve is low, the air with special temperature and pressure is in contact with the breather valve, so that the air can be solidified on the valve body, and the normal work of the breather valve is not facilitated are solved.
In order to solve the technical problems, the invention provides the following technical scheme: an integrated jacket heat-insulating fire-retarding breather valve comprises a shell unit, a fire-retarding unit and a breather unit.
The shell unit comprises a top cover and a shell part arranged on the top cover, wherein the shell part comprises an outer shell arranged on the top cover and an inner shell arranged inside the outer shell and communicated with the fire-retarding air passage; the fire-retarding unit comprises a fire-retarding seat arranged on the shell part, a fire-retarding air passage arranged on the fire-retarding seat and a fire-retarding disk arranged between the fire-retarding seat and the shell part; and the breathing unit comprises a conical valve core component I arranged at the ventilation end of the shell part and at one end of the inner shell, a conical valve core component II arranged at the other end of the inner shell, and a protective valve core component which is rotatably arranged on the top cover and connected with the conical valve core component II.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the outer shell comprises an outer shell surface layer arranged on the top cover and an outer shell inner layer which is arranged inside the outer shell surface layer and forms a vacuum layer with the outer shell surface layer;
the inner shell comprises an inner pressure cabin, a transition fire-retarding seat and a top cover vacuum layer, wherein the inner pressure cabin is arranged in the outer shell, the two ends of the inner pressure cabin are respectively provided with the first conical valve core assembly and the second conical valve core assembly, the transition fire-retarding seat is connected between the fire-retarding seat and the inner pressure cabin, and the top cover vacuum layer is arranged at one end, close to the top cover, of the outer shell; and a fire-retarding and air-penetrating nozzle is arranged on the transition fire-retarding seat.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the shell part is provided with a pressure end purging interface and a vacuum end purging interface.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the conical valve core assembly I comprises a valve core cabin I arranged on the inner pressure cabin, a valve core connecting part I arranged on the valve core cabin I, a conical valve core I arranged on the valve core connecting part I, and a valve core pneumatic rod part arranged on the conical valve core I and the valve core cabin I.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the valve core connecting part I comprises a built-in sealing sleeve arranged on the valve core cabin I, a valve core cabin sealing cover arranged on the built-in sealing sleeve, a convex sealing cover arranged on the upper surface of the valve core cabin sealing cover, and a valve core rod connecting sleeve arranged between the convex sealing cover and the conical valve core I and arranged on the valve core pneumatic rod part; and a sealing bulge is arranged on the contact surface of the convex sealing cover and the conical valve core I.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the conical valve core I comprises a valve core mounting seat arranged on the valve core rod connecting sleeve, a gasket arranged on the valve core mounting seat, and a conical valve core I body arranged on the gasket and the valve core connecting part I.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the valve core pneumatic rod part comprises a valve core rod arranged on the first conical valve core, a movable valve core arranged in the valve core rod, a pneumatic valve ring I arranged on the valve core rod and the first conical valve core body, and a backing ring arranged on the valve core rod and contacted with the gasket.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the conical valve core assembly II comprises a valve core cabin II arranged on the inner pressure cabin, a valve core connecting part II arranged on the valve core cabin II, a sealing valve core plate arranged on the valve core connecting part II and connected with the protection valve core assembly, and a conical valve core II arranged on the sealing valve core plate.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the protection valve core assembly comprises a protection valve core rod arranged on the second conical valve core assembly, a second conical valve core assembly connecting piece arranged on the protection valve core rod, and a control knob arranged on the top cover and connected with the protection valve core rod.
As a preferable scheme of the integrated jacket heat-preservation fire-retarding breather valve, the invention comprises the following steps: the second connecting piece of the conical valve core assembly comprises a second pneumatic valve ring which is arranged on the protection valve core rod and connected with the second conical valve core, and a limiting valve core sleeve which is arranged on the sealing valve core plate and the protection valve core rod.
The invention has the beneficial effects that: the valve disc of the breather valve adopts a conical design, so that the change of air pressure can be timely felt when air flows pass through, the sensitivity of the breather valve is improved, meanwhile, the arrangement of the conical valve core assembly I301 and the conical valve core assembly II 302 can greatly improve the operating pressure range of the storage tank, the phenomenon of leakage caused by overhigh air pressure is avoided, and illegal discharge of VOCs and nitrogen seal gas in the storage tank where the breather valve is located is effectively reduced. The valve body adopts whole no dead angle steam jacket heat preservation design, fire retardant unit and casing unit integral type casting form simultaneously, cone valve core subassembly one adopts full metal valve disc to seal with cone valve core subassembly two to set up, cone valve core can be under the unanimous prerequisite of case volume, increase with gaseous area of contact, thereby can prevent effectively that the medium from solidifying, and through setting up the jacket heat preservation shell of full coverage, it mainly adopts local jacket heat preservation or electrical heating or steam coil heating to have solved current breather valve heat preservation measure, the heat preservation effect is relatively poor, can lead to the inside local region of valve body to appear the phenomenon of condensing, lead to the problem that the breather valve can not normally work.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an integrated jacket thermal insulation fire-retarding breather valve of the present invention.
Fig. 2 is a front cross-sectional view of an outer housing of the integrated jacketed heat-preserving fire-blocking breather valve of the present invention.
Fig. 3 is a right side cross-sectional view of the outer housing of the integrated jacket thermal insulation fire-retardant breather valve of the present invention.
Fig. 4 is a front cross-sectional view of the outer housing of the integrated jacketed heat-preserving fire-blocking breather valve of the present invention.
Fig. 5 is a cross-sectional view of a first conical valve element assembly in an integrated jacketed heat-preserving fire-retardant respiratory valve of the present invention.
Fig. 6 is a perspective view of an outer housing of the integrated jacketed heat-preserving fire-blocking breather valve of the present invention.
Fig. 7 is a perspective view II of the outer housing of the integrated jacketed heat-preserving fire-retarding breather valve of the present invention.
Fig. 8 is a front cross-sectional view of one embodiment of an integrated jacketed thermal fire-resistant breather valve of the present invention.
Fig. 9 is a partial enlarged view at a in fig. 5.
Description of the drawings: 100. a housing unit; 101. a top cover; 102. a housing portion; 102a, an outer housing; 102a-1, an outer shell surface layer; 102a-2, an outer housing inner layer; 102b, an inner housing; 102b-1, an inner pressure compartment; 102b-2, a transition firestop seat; 102b-21, fire-retardant aeration nozzle; 102b-3, a top cover vacuum layer; 102c, a pressure end purge interface; 102d, a vacuum end purging interface; 200. a fire-blocking unit; 201. a fire-retardant seat; 202. a fire-retardant air passage; 203. a firestop tray; 300. a breathing unit; 301. a conical valve core assembly I; 301a, a first valve core cabin; 301b, valve core connecting part I; 301b-1, built-in sealing sleeve; 301b-2, a valve cartridge sealing cover; 301b-3, a male seal cap; 301b-31, sealing projections; 301b-4, valve core rod connecting sleeve; 301c, a conical valve core I; 301c-1, a valve core mounting seat; 301c-2, washers; 301c-3, a conical valve core body; 301d, a valve core pneumatic rod part; 301d-1, a valve core rod; 301d-2, a movable valve core; 301d-3, pneumatic valve circle one; 301d-4, backing ring; 302. a conical valve core assembly II; 302a, a conical valve core II; 302b, sealing the valve core plate; 302c, a valve core connecting part II; 302d, a valve core cabin II; 303. protecting the valve core assembly; 303a, a protective valve core rod; 303b, a conical valve core assembly two connecting piece; 303b-1, pneumatic valve ring two; 303b-2, a limiting valve core sleeve; 400. a vacuum tube is arranged; 500. a vacuum tube is communicated; 600. a lower vacuum tube; 700. and vacuumizing the tube.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Embodiment 1 referring to fig. 1 to 3, an integrated jacket thermal insulation fire-resistant breather valve is provided for a first embodiment of the present invention, and includes a housing unit 100, a fire-resistant unit 200, and a breather unit 300.
The housing unit 100 includes a top cover 101, and a housing part 102 disposed on the top cover 101, wherein the housing part 102 includes an outer housing 102a disposed on the top cover 101 and an inner housing 102b disposed inside the outer housing 102a and communicating with the firestop air passage 202. A vacuum layer is arranged between the inner shell 102b and the outer shell 102a to play a role in heat preservation of the breather valve.
The firestop unit 200 includes a firestop seat 201 provided on the housing portion 102, a firestop air passage 202 provided on the firestop seat 201, and a firestop tray 203 provided between the firestop seat 201 and the housing portion 102. The fire-retardant unit 200 is provided to prevent the ventilation channel of the breather valve from being fire-protected, and since the breather valve is usually provided in explosion-proof equipment and fire-proof equipment, when a dangerous situation occurs, a flame will be blocked by the fire-retardant plate 203 on the fire-retardant air duct 202 and will not enter the inside of the housing unit 100, so that the breather valve has good fire-retardant performance.
And the respiratory unit 300 comprises a first conical valve core assembly 301 arranged at the ventilation end of the shell part 102 and at one end of the inner shell 102b, a second conical valve core assembly 302 arranged at the other end of the inner shell 102b, and a protective valve core assembly 303 rotatably arranged on the top cover 101 and connected with the second conical valve core assembly 302. Through setting up cone valve core subassembly 301 and cone valve core subassembly second 302 on interior casing 102b, can in time feel the change of atmospheric pressure when the air current passes through, improve the sensitivity of breather valve, cone valve core subassembly 301 and cone valve core subassembly second 302's setting can increase substantially storage tank operating pressure range simultaneously, avoids taking place the too high leakage phenomenon of atmospheric pressure, effectively reduces the illegal emission of VOCs and nitrogen seal gas in the storage tank that the breather valve is located.
Further, the outer shell 102a includes an outer shell surface layer 102a-1 disposed on the top cover 101, and an outer shell inner layer 102a-2 disposed inside the outer shell surface layer 102a-1 and forming a vacuum layer with the outer shell surface layer 102 a-1; a vacuum layer is arranged between the inner shell 102b and the outer shell 102a to play a role in heat preservation of the breather valve.
Preferably, the inner shell 102b comprises an inner pressure cabin 102b-1 arranged inside the outer shell 102a, two ends of which are respectively provided with a first conical valve core assembly 301 and a second conical valve core assembly 302, a transition fire-retardant seat 102b-2 connected between the fire-retardant seat 201 and the inner pressure cabin 102b-1, and a top cover vacuum layer 102b-3 arranged at one end of the outer shell 102a close to the top cover 101; the transition firestop seat 102b-2 is provided with firestop vents 102b-21. The internal pressure cabin 102b-1 is provided with an air pressure change debugging sensing space inside the shell unit 100, and the conical valve core component I301 and the conical valve core component II 302 which are arranged at two ends of the internal pressure cabin 102b-1 can both react to the air pressure change inside the breather valve, and meanwhile, the air flow outside the valve body is controlled. The vacuum layer 102b-3 is arranged on the top cover, so that the whole vacuum heat preservation arrangement of the shell unit 100 can be realized, and the heat preservation performance of the breather valve is further improved. Fire-blocking vent nozzles 102b-21 are arranged to prevent fire of the vent channel of the breather valve and ensure smooth connection between the breather valve and the atmosphere.
Further, a pressure end purge port 102c and a vacuum end purge port 102d are provided on the housing portion 102. The pressure side purge port 102c communicates with the inner pressure chamber 102b-1 and the vacuum side purge port 102d communicates with the vacuum layer between the inner housing 102b and the outer housing 102 a. The purging interface is arranged to facilitate cleaning of the inside of the breather valve, and dust is prevented from entering.
In the use process, when the pressure of the storage tank provided with the breather valve in the embodiment reaches the set pressure of the breather valve, the valve disc of the first conical valve core component 301 of the breather valve is opened, and the maximum rated displacement of the breather valve can be achieved when the breather valve is in 10% overpressure. The valve disc adopts the toper design, can in time feel the change of atmospheric pressure when the air current passes through, improves the sensitivity of breather valve, and the setting of toper case subassembly one 301 and toper case subassembly two 302 can improve storage tank operating pressure range by a wide margin simultaneously, avoids taking place the too high leakage phenomenon of atmospheric pressure, effectively reduces the illegal emission of VOCs and nitrogen seal gas in the storage tank that the breather valve is located. This integral type fire-retardant breather valve, the valve body adopts whole no dead angle steam jacket heat preservation design, set up the vacuum between shell body 102a and the interior casing 102b, fire-retardant unit 200 and the casting of shell body unit 100 are formed simultaneously in an organic whole, cone valve core subassembly one 301 and cone valve core subassembly two 302 adopt full metal valve disc to seal the setting, cone valve core can increase under the unanimous prerequisite of case volume with gaseous area of contact, thereby can effectively prevent the medium solidification, and through set up the elongated passageway of ventilating on shell body unit 100, also can avoid the medium to solidify under special atmospheric pressure temperature environment. The fire-retarding unit 200 is arranged on the communication unit between the breather valve and the atmosphere, so that gas deflagration can be effectively prevented, and meanwhile, the fire-retarding device is arranged on the atmosphere side, so that the personnel can conveniently check and maintain. The whole structure has good tightness, and can ensure that the gas leakage amount is zero under the normal operating pressure of the storage tank.
Embodiment 2, referring to fig. 1-5 and 9, is a second embodiment of the present invention, which is different from the first embodiment in that: the first conical valve element assembly 301 comprises a first valve element cabin 301a arranged on the inner pressure cabin 102b-1, a first valve element connecting part 301b arranged on the first valve element cabin 301a, a first conical valve element 301c arranged on the first valve element connecting part 301b, and a first valve element pneumatic rod part 301d arranged on the first conical valve element 301c and the first valve element cabin 301 a. The first valve core cabin 301a is connected with the first conical valve core 301c through the first valve core connecting part 301b, and the first conical valve core 301c slides on the valve core pneumatic rod part 301d according to the pressure condition inside the first valve core cabin 301a, so that the regulation function on the air pressure inside the first valve core cabin 301a is achieved. The first valve core cabin 301a is arranged on the inner pressure cabin 102b-1, and can adjust the air pressure in the tank body mounted by the breather valve according to the air inflow of the ventilation channel connected with the tank body mounted by the breather valve on the shell unit 100, so that the air exchange between the tank body and the atmosphere is realized, the air pressure respiration control function of the tank body is realized, the first valve core cabin 301a is independently arranged on the inner pressure cabin 102b-1, the air pressure debugging sensitivity of the breather valve is improved, the contact area between air and the valve core is improved due to the conical valve core design, the weight of the whole breather valve is reduced, and the working safety of the breather valve is improved on the premise that the normal working of the breather valve is ensured.
Compared with the embodiment 1, the first valve core connecting part 301b comprises an inner sealing sleeve 301b-1 arranged on the first valve core cabin 301a, a valve core cabin sealing cover 301b-2 arranged on the inner sealing sleeve 301b-1, a convex sealing cover 301b-3 arranged on the upper surface of the valve core cabin sealing cover 301b-2, and a valve core rod connecting sleeve 301b-4 arranged between the convex sealing cover 301b-3 and the first conical valve core 301c and arranged on the valve core pneumatic rod part 301 d; the contact surface of the male seal cap 301b-3 and the tapered spool one 301c is provided with a seal projection 301b-31. The first valve core connecting part 301b is arranged, and the contact connection between the built-in sealing sleeve 301b-1 and the convex sealing cover 301b-3 ensures that the gas leakage condition in the inner pressure cabin 102b-1 can not occur, and effectively improves the sealing effect of the whole breather valve.
Further, the first conical valve element 301c includes a valve element mounting seat 301c-1 provided on the valve element stem connecting sleeve 301b-4, a gasket 301c-2 provided on the valve element mounting seat 301c-1, and a first conical valve element body 301c-3 provided on the gasket 301c-2 and the first valve element connecting portion 301 b. The gasket 301c-2 is provided to protect the valve core mounting seat 301c-1 and the tapered valve core body 301c-3, and reduce wear of the tapered valve core body 301c-3.
Further, the spool pneumatic rod portion 301d includes a spool rod 301d-1 disposed on the first tapered spool 301c, a movable spool 301d-2 disposed inside the spool rod 301d-1, a pneumatic ring 301d-3 disposed on the spool rod 301d-1 and the first tapered spool body 301c-3, and a grommet 301d-4 disposed on the spool rod 301d-1 and in contact with the gasket 301 c-2. The first conical valve core 301c slides on the valve core pneumatic rod portion 301d under the control of the first pneumatic valve ring 301d-3 according to the air pressure in the inner pressure cabin 102b-1, and the movable valve core 301d-2 in the valve core pneumatic rod portion 301d plays a role in respiratory regulation of the air pressure in the respiratory valve connecting tank body, so that the air pressure in the tank body is maintained stable.
Further, the second tapered valve element assembly 302 includes a second valve element compartment 302d disposed on the inner pressure compartment 102b-1, a second valve element connecting portion 302c disposed on the second valve element compartment 302d, a second sealing valve element plate 302b disposed on the second valve element connecting portion 302c and connected to the protection valve element assembly 303, and a second tapered valve element 302a disposed on the sealing valve core plate 302 b. The conical valve core assembly II 302 is located at the other end of the internal pressure cabin 102b-1, so that the regulation of the internal pressure cabin 102b-1 is achieved, namely the regulation of the internal pressure cabin 102b-1 in the breather valve is further achieved, the air pressure of a tank body connected with the breather valve is stable, the breather valve breathes and regulates the air pressure of the tank body through the internal pressure cabin 102b-1, the sensitivity of the air pressure change induction in the tank body is improved, the contact area and the contact time of the air in the breather valve and the valve core can be improved through the arrangement of the double-group valve cores, and therefore the working safety and the sensitivity of the breather valve are improved.
In the use process, the first valve core cabin 301a is connected with the first conical valve core 301c through the first valve core connecting part 301b, and the first conical valve core 301c slides on the valve core pneumatic rod part 301d according to the pressure condition in the first valve core cabin 301a, so that the regulation function on the air pressure in the first valve core cabin 301a is achieved. The first valve core cabin 301a is arranged on the inner pressure cabin 102b-1, and can adjust the air pressure in the tank body mounted by the breather valve according to the air inflow of the ventilation channel connected with the tank body mounted by the breather valve on the shell unit 100, so that the air exchange between the tank body and the atmosphere is realized, the air pressure respiration control function of the tank body is realized, the first valve core cabin 301a is independently arranged on the inner pressure cabin 102b-1, the air pressure debugging sensitivity of the breather valve is improved, the contact area between air and the valve core is improved due to the conical valve core design, the weight of the whole breather valve is reduced, and the working safety of the breather valve is improved on the premise that the normal working of the breather valve is ensured.
The rest of the structure is the same as that of embodiment 1.
Embodiment 3, referring to fig. 1-7 and 9, is a third embodiment of the present invention, which differs from the second embodiment in that: the protection valve core assembly 303 includes a protection valve core rod 303a disposed on the second tapered valve core assembly 302, a second tapered valve core assembly connector 303b disposed on the protection valve core rod 303a, and a control knob 303c disposed on the top cover 101 and connected to the protection valve core rod 303 a. The position of the protection valve core rod 303a on the second conical valve core assembly 302 can be adjusted by arranging the control knob 303c, so that the moving range of the second conical valve core assembly 302 is limited, and the phenomenon of excessive air leakage of the breather valve is avoided.
In comparison with embodiment 2, the second connecting member 303b of the conical valve core assembly includes a second pneumatic valve ring 303b-1 disposed on the second protective valve core rod 303a and connected to the second conical valve core 302a, and a limiting valve core sleeve 303b-2 disposed on the sealing valve core plate 302b and the second protective valve core rod 303 a. The second conical valve core assembly connecting piece 303b is arranged, and the protection valve core rod 303a is connected with the valve core of the second conical valve core assembly 302 and the valve core rod, so that the air pressure adjusting range of the second conical valve core assembly 302 can be conveniently controlled by using the control knob 303 c.
During the use, if the air pressure adjustment in the breather valve is out of control, the position of the control knob 303c on the top cover 101 can be utilized to adjust the position of the protection valve core rod 303a on the second conical valve core assembly 302, and if the control knob 303c is closer to the second conical valve core assembly 302, the pressure adjustment range of the protection valve core rod 303a in the second conical valve core assembly 302 can be reduced, the movement range of the second conical valve core assembly 302 is limited, and the phenomenon of excessive air leakage of the breather valve is avoided. Under normal operation of the breather valve, the adjusting control knob 303c is not in contact with the second conical valve core assembly 302, and the second conical valve core assembly 302 can work independently.
The rest of the structure is the same as that of embodiment 2.
Embodiment 4, referring to fig. 8, is a fourth embodiment of the present invention, which is different from the third embodiment in that: the breather valve is provided with an upper vacuum tube 400 and a lower vacuum tube 600 connected to a vacuum layer formed between the outer housing layer 102a-1 and the outer housing layer 102a-2, wherein the lower vacuum tube 600 is provided near a breather passage of the breather valve. The top cover 101 is provided with a communicating vacuum pipe 500 and an evacuating pipe 700, and the communicating vacuum pipe 500 is correspondingly connected with the upper vacuum pipe 400.
In use, a worker connects the evacuated machine to the evacuated tube 700 and the lower tube 600. The vacuum layer inside the breather valve connected with the lower vacuum pipe 600 is vacuumized, and the vacuum layer formed between the outer shell surface layer 102a-1 and the outer shell surface layer 102a-2 connected with the upper vacuum pipe 400 is communicated with the vacuuming pipe 700 through the communicating vacuum pipe 500 on the top cover 101, and a worker vacuumizes the top cover 101 and the vacuum layer inside the breather valve communicated with the top cover through the vacuuming pipe 700, so that the heat insulation performance of the breather valve is improved.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. An integral type presss from both sides cover heat preservation fire-retardant breather valve which characterized in that: comprising the steps of (a) a step of,
A housing unit (100) comprising a top cover (101), and a housing part (102) provided on the top cover (101);
a fire-retardant unit (200) comprising a fire-retardant seat (201) arranged on the shell part (102), a fire-retardant air passage (202) arranged on the fire-retardant seat (201), and a fire-retardant tray (203) arranged between the fire-retardant seat (201) and the shell part (102), wherein the shell part (102) comprises an outer shell (102 a) arranged on the top cover (101) and an inner shell (102 b) arranged inside the outer shell (102 a) and communicated with the fire-retardant air passage (202);
The breathing unit (300) comprises a first conical valve core component (301) arranged at the ventilation end of the shell part (102) and at one end of the inner shell (102 b), a second conical valve core component (302) arranged at the other end of the inner shell (102 b), and a protective valve core component (303) rotatably arranged on the top cover (101) and connected with the second conical valve core component (302);
The outer shell (102 a) comprises an outer shell surface layer (102 a-1) arranged on the top cover (101), and an outer shell inner layer (102 a-2) arranged inside the outer shell surface layer (102 a-1) and forming a vacuum layer with the outer shell surface layer (102 a-1); the inner shell (102 b) comprises an inner pressure cabin (102 b-1) which is arranged in the outer shell (102 a) and is provided with a first conical valve core component (301) and a second conical valve core component (302) at two ends respectively, a transition fire-retarding seat (102 b-2) which is connected between the fire-retarding seat (201) and the inner pressure cabin (102 b-1), and a top cover vacuum layer (102 b-3) which is arranged on the outer shell (102 a) and is close to one end of the top cover (101); the transition fire-retarding seat (102 b-2) is provided with a fire-retarding and ventilation nozzle (102 b-21);
The first conical valve core assembly (301) comprises a first valve core cabin (301 a) arranged on the inner pressure cabin (102 b-1), a first valve core connecting part (301 b) arranged on the first valve core cabin (301 a), a first conical valve core (301 c) arranged on the first valve core connecting part (301 b), and a valve core air pressure rod part (301 d) arranged on the first conical valve core (301 c) and the first valve core cabin (301 a);
The first valve core connecting part (301 b) comprises a built-in sealing sleeve (301 b-1) arranged on the first valve core cabin (301 a), a valve core cabin sealing cover (301 b-2) arranged on the built-in sealing sleeve (301 b-1), a convex sealing cover (301 b-3) arranged on the upper surface of the valve core cabin sealing cover (301 b-2), and a valve core rod connecting sleeve (301 b-4) arranged between the convex sealing cover (301 b-3) and the first conical valve core (301 c) and arranged on the valve core pneumatic rod part (301 d); the contact surface of the convex sealing cover (301 b-3) and the first conical valve core (301 c) is provided with a sealing protrusion (301 b-31).
2. The integrated jacketed insulation fire-resistant breather valve of claim 1, wherein: a pressure end purging interface (102 c) and a vacuum end purging interface (102 d) are arranged on the shell part (102).
3. The integrated jacketed insulation fire-resistant breather valve of claim 2, wherein: the first conical valve core (301 c) comprises a valve core mounting seat (301 c-1) arranged on the valve core rod connecting sleeve (301 b-4), a gasket (301 c-2) arranged on the valve core mounting seat (301 c-1), and a first conical valve core body (301 c-3) arranged on the gasket (301 c-2) and the first valve core connecting part (301 b).
4. The integrated jacketed insulation fire-resistant breather valve of claim 3, wherein: the valve core pneumatic rod part (301 d) comprises a valve core rod (301 d-1) arranged on the first conical valve core (301 c), a movable valve core (301 d-2) arranged inside the valve core rod (301 d-1), a pneumatic valve ring (301 d-3) arranged on the valve core rod (301 d-1) and the first conical valve core body (301 c-3), and a backing ring (301 d-4) arranged on the valve core rod (301 d-1) and contacted with the gasket (301 c-2).
5. The integrated jacketed insulation fire-resistant breather valve of claim 4, wherein: the conical valve core assembly II (302) comprises a valve core cabin II (302 d) arranged on the inner pressure cabin (102 b-1), a valve core connecting part II (302 c) arranged on the valve core cabin II (302 d), a sealing valve core plate (302 b) arranged on the valve core connecting part II (302 c) and connected with the protection valve core assembly (303), and a conical valve core II (302 a) arranged on the sealing valve core plate (302 b).
6. The integrated jacketed insulation fire-resistant breather valve of claim 5, wherein: the protection valve core assembly (303) comprises a protection valve core rod (303 a) arranged on the second conical valve core assembly (302), a second conical valve core assembly connecting piece (303 b) arranged on the protection valve core rod (303 a), and a control knob (303 c) arranged on the top cover (101) and connected with the protection valve core rod (303 a).
7. The integrated jacketed insulation fire-resistant breather valve of claim 6, wherein: the second conical valve core assembly connecting piece (303 b) comprises a second pneumatic valve ring (303 b-1) which is arranged on the protective valve core rod (303 a) and connected with the second conical valve core (302 a), and a limiting valve core sleeve (303 b-2) which is arranged on the sealing valve core rod (302 b) and the protective valve core rod (303 a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410426693.4A CN118030913B (en) | 2024-04-10 | 2024-04-10 | Integral jacket heat-insulating fire-retarding breather valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410426693.4A CN118030913B (en) | 2024-04-10 | 2024-04-10 | Integral jacket heat-insulating fire-retarding breather valve |
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| CN118030913B true CN118030913B (en) | 2024-06-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204420239U (en) * | 2015-01-22 | 2015-06-24 | 上海凯凡石化设备有限公司 | Round-the-clock fire-retardant breather valve |
| CN114183571A (en) * | 2021-12-14 | 2022-03-15 | 西南石油大学 | Integrated valve core breather valve capable of being maintained and maintained quickly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB203644A (en) * | 1922-06-19 | 1923-09-13 | John Charles Philip De Krafft | Improvements in or relating to automatic loaded valves, particularly for vents of oil tanks and like containers |
| CN212899949U (en) * | 2020-08-13 | 2021-04-06 | 定州市东方石油设备有限公司 | Fire-retardant breather valve convenient to dismouting |
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2024
- 2024-04-10 CN CN202410426693.4A patent/CN118030913B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204420239U (en) * | 2015-01-22 | 2015-06-24 | 上海凯凡石化设备有限公司 | Round-the-clock fire-retardant breather valve |
| CN114183571A (en) * | 2021-12-14 | 2022-03-15 | 西南石油大学 | Integrated valve core breather valve capable of being maintained and maintained quickly |
Also Published As
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| CN118030913A (en) | 2024-05-14 |
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