CN217177528U - Ultra-high temperature quick valve - Google Patents

Abstract

An ultrahigh-temperature quick valve comprises a main valve body, a main valve cavity is formed in the main valve body, a main valve medium pipe group and a flow passage double-layer heat insulation structure are arranged in the main valve cavity, the main valve body comprises a high-temperature stop valve and an air quick valve, the high-temperature stop valve and the air quick valve are connected and fixed, the main valve cavity comprises an air inlet flow passage formed in the high-temperature stop valve and an air outlet flow passage formed in the air quick valve, the air inlet flow passage is communicated with the air outlet flow passage, the main valve medium pipe group comprises an air inlet liner pipe and an air outlet liner pipe, the air inlet liner pipe is arranged in the air inlet flow passage, the air outlet liner pipe is arranged in the air outlet flow passage, one end of the air inlet liner pipe is communicated with the air outlet liner pipe, the flow passage double-layer heat insulation structure is wrapped on the outer surfaces of the air inlet liner pipe and the air outlet liner pipe to insulate heat inside the air inlet liner pipe and the air outlet liner pipe, the main valve cavity is internally provided with the double-layer heat insulation structure, and can prevent the valve sealing failure caused by plastic deformation due to overhigh temperature, meanwhile, the heat energy can be prevented from leaking to achieve the effect of saving energy.

Description

Ultra-high temperature quick valve

Technical Field

The utility model relates to a high temperature, high-pressure valve technical field, concretely relates to ultra-high temperature fast valve.

Background

From the structure of valve and in the valve operation process, people realize under the super high temperature operating mode, adopt the thermal-insulated structure of inside lining, have the better effect that prevents heat energy transfer to the valve body. Therefore, the valve body can be prevented from generating plastic deformation due to overhigh temperature to cause sealing failure of the valve, and meanwhile, heat energy can be prevented from leaking to achieve the energy-saving effect.

When the valve is used in high-temperature and low-pressure applications, no problem arises with this structure. The air inlet liner tube and the air outlet liner tube are arranged in the passage and the valve cavity of the valve, heat insulation cotton is filled between the liner tube and the valve body, a certain number of micropores are drilled on the liner tube, so that the internal pressure and the external pressure of the liner tube are balanced, and the valve can work well when the valve is subjected to low pressure. After the working pressure has increased, it has been found difficult to prevent the insulating cotton in the valve chamber from being blown out by the high-pressure gas. This problem is particularly pronounced when the working temperature reaches 1200 ℃ and the working pressure reaches 46 MPa.

The data obtained by the hypersonic wind tunnel test is accurate. Therefore, the hot air medium is required to be very clean, and meanwhile, extremely high requirements are provided for the heat preservation performance (heat energy loss) of the valve, the structure of the valve, the sealing performance of the valve and the quick closing speed. If the valve structure is unreasonable in design, the heat preservation and insulation measures are improper, and the accurate data of the test can be directly influenced.

Disclosure of Invention

In view of this, the utility model provides an ultra-high temperature fast valve.

In order to achieve the above object, the utility model provides a following technical scheme:

an ultra-high temperature quick valve comprises a main valve body, a main valve cavity is formed in the main valve body, a main valve medium pipe group and a flow passage double-layer heat insulation structure are arranged in the main valve cavity, the main valve body comprises a high-temperature stop valve and an air quick valve, the high-temperature stop valve is connected with the air quick valve, the main valve cavity comprises an air inlet valve cavity formed in the high-temperature stop valve and an air outlet valve cavity formed in the air quick valve, the air inlet valve cavity is communicated with the air outlet valve cavity, the main valve medium pipe group comprises an air inlet liner pipe and an air outlet liner pipe, an air inlet flow channel is formed in the air inlet liner tube, an air outlet flow channel is formed in the air outlet liner tube, the air inlet flow channel is communicated with the air outlet flow channel, the air inlet liner tube is arranged in the air inlet valve cavity, the air outlet liner tube is arranged in the air outlet valve cavity, and the double-layer heat preservation structure of the flow channel wraps the outer surfaces of at least part of the air inlet liner tube and the air outlet liner tube to preserve heat inside the air inlet liner tube and the air outlet liner tube.

Preferably, the flow channel double-layer insulation structure comprises a flow channel sleeve, the flow channel sleeve is arranged outside the air inlet liner pipe and the air outlet liner pipe, a first insulation cavity is formed between the flow channel sleeve and the air inlet liner pipe and between the flow channel sleeve and the air outlet liner pipe, a second insulation cavity is formed between the flow channel sleeve and the inner wall of the main valve cavity, and insulation materials are arranged in the first insulation cavity and the second insulation cavity.

Preferably, a blowing-prevention connecting structure is arranged between the air outlet liner tube and the air inlet liner tube, the blowing-prevention connecting structure is arranged in a tubular shape, the inner wall of the blowing-prevention connecting structure is arranged in a stepped structure, the portion, corresponding to the air outlet liner tube, of the blowing-prevention connecting structure is in sealing connection with the air outlet liner tube, a blowing-prevention gap is formed between the portion, corresponding to the air inlet liner tube, of the blowing-prevention connecting structure and the air inlet liner tube in the radial direction, and the blowing-prevention gap is communicated with the first heat preservation cavity.

Preferably, the anti-blowing connection structure is further arranged on the air inlet liner tube and the air outlet liner tube, the air inlet liner tube and the air outlet liner tube are divided into a multi-section structure by the anti-blowing connection structure, one end of the anti-blowing connection structure is welded and fixed with the corresponding air outlet liner tube, the other end of the anti-blowing connection structure is connected with the air outlet liner tube at the adjacent end of the air outlet liner tube, an anti-blowing gap is formed between the air outlet liner tubes at the adjacent end, and the anti-blowing connection structure on the air inlet liner tube is the same as the anti-blowing connection structure on the air outlet liner tube.

Preferably, the flow passage sleeve is provided with a transition connection structure, the transition connection structure includes a first transition connection structure and a second transition connection structure, the first transition connection structure extends obliquely from one end of the air inlet liner tube close to the air outlet liner tube toward the cavity wall of the main valve cavity, the second transition connection structure extends obliquely from one end of the air outlet liner tube close to the air inlet liner tube toward the cavity wall of the main valve cavity, and the first transition connection structure and the second transition connection structure are both connected with the cavity wall of the main valve cavity.

Preferably, still set up heat exchange device on the main valve body, heat exchange device sets up the one side that is close to the air rapid valve at the main valve body, heat exchange device includes heat exchange connecting pipe, air inlet proportion control valve and air outlet proportion control valve, set up the connecting hole on the air rapid valve, the both ends intercommunication main valve chamber of connecting hole and main valve body outside, the one end of heat exchange connecting pipe stretches into the connecting hole and communicates with main valve chamber.

The preferred, the heat exchange connecting pipe is the three layer construction setting, the heat exchange connecting pipe includes heat exchange siphunculus, the first sleeve pipe of heat exchange and heat exchange second sleeve pipe, the first sleeve pipe setting of heat exchange is at the surface of heat exchange siphunculus, the second sleeve pipe setting of heat exchange is at the first sheathed tube surface of heat exchange, form heat exchange chamber between the first sleeve pipe of heat exchange and the heat exchange siphunculus, the heat exchange siphunculus is close to one of total valve body and serves and set up a plurality of intercommunication mouths, the heat exchange siphunculus passes through intercommunication mouth and heat exchange chamber intercommunication.

Preferably, the pipe wall of the first heat exchange sleeve extends towards the center position far away from the first heat exchange sleeve to form an adjusting pipe, the adjusting pipe penetrates through the pipe wall of the second heat exchange sleeve, the air inlet proportion adjusting valve is arranged at one end, far away from the first heat exchange sleeve, of the adjusting pipe, the air inlet proportion adjusting valve is communicated with the heat exchange cavity in the first heat exchange sleeve through the adjusting pipe, and the air outlet proportion adjusting valve is arranged at one end, far away from the main valve body, of the heat exchange connecting pipe.

Preferably, the main valve body is further provided with a water cooling jacket, the water cooling jacket is arranged on the outer surface of the main valve body, a water cooling cavity is formed between the water cooling jacket and the outer surface of the main valve body, the water cooling cavity is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is arranged at one end, close to the air inlet channel, of the water cooling jacket, and the cooling water outlet is arranged at one end, close to the air outlet channel, of the water flow jacket.

The beneficial effects of the utility model reside in that: the utility model discloses a connect high temperature stop valve and quick valve of air and form pair valve structure, and flow passage intercommunication between them forms the main valve pocket, thereby when having reduced installation space, the cost of installation production has been reduced, and set up double-deck insulation construction in the main valve pocket, can avoid the valve body high temperature to produce plastic deformation and lead to the valve seal inefficacy, and simultaneously, can prevent again that heat energy from leaking and reach energy-conserving effect, double-deck insulation construction is in heat retaining, when enduring extremely high temperature and pressure, also can not blow away the heat preservation cotton from the heat preservation intracavity, and guarantee the normal safe work of valve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is an enlarged view at C of FIG. 1;

fig. 5 is an enlarged view at D in fig. 1.

Reference numerals:

1. a main valve body, 2, a main valve cavity, 3, a main valve medium pipe group, 4, a flow channel double-layer heat preservation structure, 5, a high-temperature stop valve, 6, an air quick valve, 7, an air inlet flow channel, 8, an air inlet liner pipe, 9, an air outlet liner pipe, 10, a driving device, 11, a valve rod, 12, a valve cover, 13, a valve core, 14, a valve seat, 15, a valve core channel, 16, a transition connection structure, 17, a flow channel sleeve pipe, 18, a first heat preservation cavity, 19, a second heat preservation cavity, 20, heat preservation cotton, 21, an anti-blowing connection structure, 22, an anti-blowing gap, 23, a heat exchange device, 24, a heat exchange connecting pipe, 25, an air inlet proportion adjusting valve, 26, an air outlet proportion adjusting valve, 27, a connecting hole, 28, a heat exchange through pipe, 29, a heat exchange first sleeve pipe, 30, a heat exchange second sleeve pipe, 31, a heat exchange cavity, 32, a communication port, 33 and a cooling cavity, 34. the cooling water system comprises an air outlet flow passage 35, an upper through pipe 36, a lower through pipe 37, a small-diameter part 38, a large-diameter part 39, a regulating pipe 40, a first transition connecting structure 41, a cooling water inlet 42 and a second transition connecting structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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

The utility model provides a following technical scheme:

as shown in the accompanying drawings 1-5, the utility model discloses an ultra-high temperature fast valve, which comprises a main valve body 1, a main valve cavity 2 is formed in the main valve body 1, a main valve medium pipe group 3 and a flow channel double-layer heat insulation structure 4 are arranged in the main valve cavity 2, the main valve body 1 comprises a high temperature stop valve 5 and an air fast valve 6, the high temperature stop valve 5 and the air fast valve 6 are fixedly connected, the main valve cavity 2 comprises an inlet flow channel 7 formed in the high temperature stop valve 5 and an outlet flow channel 34 formed in the air fast valve 6, the inlet flow channel 7 is communicated with the outlet flow channel 34, the main valve medium pipe group 3 comprises an inlet liner pipe 8 and an outlet liner pipe 9, the inlet liner pipe 8 is arranged in the inlet flow channel 7, the outlet liner pipe 9 is arranged in the outlet flow channel 34, one end of the inlet liner pipe 8 is communicated with the outlet liner pipe 9, the double-layer heat preservation structure 4 of the flow channel wraps the outer surfaces of the air inlet liner tube 8 and the air outlet liner tube 9 to preserve heat inside the air inlet liner tube 8 and the air outlet liner tube 9. Specifically, the high-temperature stop valve 5 and the air quick valve 6 are connected to form a double-valve structure, and the flow passages of the high-temperature stop valve and the air quick valve are communicated to form the main valve cavity 2, so that the length of a circulation passage in the valve body is greatly reduced, the installation space is reduced, the installation and production cost is reduced, the temperature attenuation in the experimental process is reduced, the number of connecting flanges is reduced, and the number of leakage risk points is reduced; and set up double-deck insulation construction in main valve chamber 2, can avoid the valve body high temperature to produce plastic deformation and lead to the valve seal inefficacy, simultaneously, can prevent heat energy to leak and reach energy-conserving effect again, runner double-deck insulation construction 4 is when keeping warm, when suffering extreme high temperature and pressure, also can not blow away insulation material 20 from the heat preservation intracavity to guarantee the normal safe work of valve.

Specifically, the high-temperature stop valve 5 and the air quick valve 6 are provided with corresponding valve opening and closing structures, the valve opening and closing structures on the high-temperature stop valve 5 and the air quick valve 6 are set to be the same structure, the valve opening and closing structure comprises a driving device 10, a valve rod 11, a valve cover 12 and a valve core 13, the interiors of the high-temperature stop valve 5 and the air quick valve 6 are respectively provided with a valve core channel 15 communicated with a corresponding air inlet channel 7 and an air outlet channel 34, the valve core 13 is arranged in the valve core channel 15, one end of the valve rod 11 is connected with the valve core 13, the other end of the valve rod 11 is connected with the driving device 10 to drive the valve core 13 to perform lifting movement in the valve core channel 15, the valve cover 12 is sleeved on the valve rod 11, the valve cover 12 is arranged above the valve core 13 to seal the valve core channel 15 above the valve core 13, the valve seat 14 is also arranged in the valve core channel 15, and the valve seat 14 is arranged at the bottom end of the valve core channel 15, the valve core 13 is driven by the valve rod 11 to seal the air inlet channel 7 or the air outlet channel 34 in a separating way, when the valve core 13 falls to a state of being tightly attached to the valve seat 14, the air inlet channel 7 and the air outlet channel 34 are separated, when the valve core 13 rises, the air inlet channel 7 and the air outlet channel 34 are opened, and the whole main valve cavity 2 is in a smooth state.

Further, the double-layer heat preservation structure 4 of the flow channel comprises a flow channel sleeve 17, the flow channel sleeve 17 is arranged outside the air inlet liner pipe 8 and the air outlet liner pipe 9, a first heat preservation cavity 18 is formed between the flow channel sleeve 17 and the flow channel liner pipe, a second heat preservation cavity 19 is formed between the flow channel sleeve 17 and the inner wall of the main valve cavity 2, and heat preservation materials 20 are arranged in the first heat preservation cavity 18 and the second heat preservation cavity 19. Specifically, in the present design, the thermal insulation material 20 may be thermal insulation cotton or a ceramic fiber rope.

Further, set up between air outlet liner pipe 9 and the air inlet liner pipe 8 and prevent blowing connection structure 21, prevent blowing connection structure 21 and be the tubulose setting, the inner wall of preventing blowing connection structure 21 is the echelonment structure setting, prevent blowing connection structure 21 and correspond the part of air outlet liner pipe 9 and air outlet liner pipe 9 sealing connection, prevent blowing connection structure 21 and correspond between the part of air inlet liner pipe 8 and the air inlet liner pipe 8 and radially form and prevent blowing clearance 22, prevent blowing clearance 22 and first heat preservation chamber 18 intercommunication. Prevent blowing connection structure 21 still sets up on the bushing pipe 8 and the bushing pipe 9 of giving vent to anger admits air, prevent blowing connection structure 21 will admit air bushing pipe 8 and give vent to anger the bushing pipe 9 and divide into multistage formula structure, prevent blowing connection structure 21's one end and the bushing pipe 9 welded fastening that gives vent to anger that corresponds, prevent blowing connection structure 21's the other end and give vent to anger the adjacent one end of bushing pipe 9 and give vent to anger the bushing pipe and be connected, and with adjacent one end is given vent to anger and is formed between the bushing pipe 9 and prevent blowing clearance 22, prevent blowing connection structure 21 on the bushing pipe 8 that admits air is the same with preventing on the bushing pipe 9 of giving vent to anger. Specifically, by arranging the anti-blowing gap 22, a deformable space can be provided for the inlet liner tube 8 and the outlet liner tube 9 in a long-time ultrahigh-temperature environment, so that the inlet liner tube and the outlet liner tube are prevented from being extruded and deformed under the condition of being attached tightly; and the anti-blowing gap 22 can also play a limiting role in the insulation material 20 in the first insulation cavity 18, and the insulation material 20 cannot be blown out towards the direction of the air outlet liner tube 9 due to the fact that the anti-blowing gap 22 is communicated with the first insulation cavity 18 to form a turning structure.

Further, a transition connection structure 16 is arranged on the flow channel sleeve 17, the transition connection structure 16 includes a first transition connection structure 40 and a second transition connection structure 45, the first transition connection structure 40 extends obliquely from one end of the inlet liner 8 close to the outlet liner 9 toward the cavity wall of the main valve cavity 2, the second transition connection structure 45 extends obliquely from one end of the outlet liner 9 close to the inlet liner 8 toward the cavity wall of the main valve cavity 2, and the first transition connection structure 40 and the second transition connection structure 45 are both connected with the cavity wall of the main valve cavity 2. Specifically, the expansion amount and the expansion stress in the diameter direction of the high-temperature metal flow passage can be released, and the transition connection structure 16 prolongs the heat transfer distance, namely the first transition connection structure 40 and the second transition connection structure 45 extend towards the direction of the central cavity wall of the main valve cavity 2 in an inclined manner, so that the temperature loss and the temperature of the valve body are greatly reduced.

Further, high-temperature and high-pressure gas is discharged in the process of preheating pipelines and valves along the way by the high-temperature gas. For solving the influence of the high temperature air of discharging to valve body and exhaust pipe, this scheme sets up heat exchange device 23 on main valve body 1, and heat exchange device 23 is at mixing cooling gas, discharges after the rethread water cooling falls to being close the normal atmospheric temperature still set up heat exchange device 23 on the main valve body 1, heat exchange device 23 sets up the one side that is close to air quick valve 6 at main valve body 1, heat exchange device 23 includes heat exchange connecting pipe 24, air inlet proportional control valve 25 and air outlet proportional control valve 26, set up connecting hole 27 on the air quick valve 6, the inside and the main valve body 1 outside of the main valve medium nest of tubes 3 of both ends intercommunication of connecting hole 27, connecting hole 27 and the inside intercommunication of main valve medium nest of tubes 3 are stretched into to the one end of heat exchange connecting pipe 24. Specifically, one side that is close to air rapid valve 6 through at main valve body 1 sets up heat exchange device 23, can carry out the heat exchange to the high temperature air in main valve medium nest of tubes 3, in this design, it is full of high temperature air all the time in air inlet liner pipe 8 and the air outlet liner pipe 9, under the state of ultrahigh temperature rapid valve in inoperative, through opening heat exchange device 23, outside cooling gas passes through air inlet proportion control valve 25 and enters into heat exchange cavity 31, again by heat exchange cavity 31 through intercommunication mouth 32 entering heat exchange siphunculus 28, thereby carry out the heat exchange through heat exchange siphunculus 28 and the ultrahigh temperature air in the main valve medium nest of tubes 3, take out to air outlet proportion control valve 26 through heat exchange siphunculus 28 and discharge to main valve body 1 outside, thereby realize the heat exchange.

Further, heat exchange connecting pipe 24 is the three layer construction setting, heat exchange connecting pipe 24 includes heat exchange siphunculus 28, the first sleeve pipe 29 of heat exchange and heat exchange second sleeve pipe 30, the first sleeve pipe 29 of heat exchange sets up the surface at heat exchange siphunculus 28, heat exchange second sleeve pipe 30 sets up the surface at the first sleeve pipe 29 of heat exchange, form heat exchange chamber 31 between heat exchange first sleeve pipe 29 and the heat exchange siphunculus 28, heat exchange siphunculus 28 is close to one of total valve body 1 and serves and set up a plurality of intercommunication mouths 32, heat exchange siphunculus 28 communicates through intercommunication mouth 32 and heat exchange chamber 31. Specifically, a cooling cavity 33 is formed between the heat exchange second sleeve 30 and the heat exchange first sleeve 29, the cooling cavity 33 is communicated with a water cooling cavity (not shown in the figure), and the cooling water inlet 41 can also be arranged on the heat exchange second sleeve 30, so that cooling water is introduced into the water cooling cavity (not shown in the figure) from the cooling cavity 33, and the heat exchange connecting pipe 24 can be cooled while the main valve body 1 is cooled, and the temperature at the heat exchange connecting pipe 24 is prevented from being too high.

In this design, the heat exchange tube 28 is a segmented structure, the heat exchange tube 28 includes an upper tube 35 and a lower tube 36, the upper tube 35 is connected to the top end of the heat exchange first tube 29, the lower tube 36 is connected to the bottom end of the heat exchange first tube 29, and the inner diameters of the upper tube 35 and the lower tube 36 are the same, one side of the upper tube 35 close to the lower tube 36 has a small diameter portion 37, one side of the lower tube 36 close to the upper tube 35 is provided with a large diameter portion 38, the outer diameter of the small diameter portion 37 is smaller than the inner diameter of the large diameter portion 38, so that the small diameter portion 37 can extend into the large diameter portion 38, and a stepped structure is formed between the large diameter portion 38 and the inner wall of the rest portion of the lower tube 36, after the small diameter portion 37 extends into the large diameter portion 38, there is a certain distance between the small diameter portion 37 and the stepped surface of the stepped structure, the distance can facilitate the heat exchange tube 28 to expand after being heated, so as to provide a space for deformation for the heat exchange tube 28, the extrusion deformation of the part of the heat exchange tube 28 close to the main valve body 1 due to the absence of expansion space is avoided.

Further, the pipe wall of the heat exchange first sleeve 29 extends towards the central position far away from the heat exchange first sleeve 29 to form an adjusting pipe 39, the adjusting pipe 39 penetrates through the pipe wall of the heat exchange second sleeve 30 to be arranged, the air inlet proportional control valve 25 is arranged at one end, far away from the heat exchange first sleeve 29, of the adjusting pipe 39, the air inlet proportional control valve 25 is communicated with the heat exchange cavity 31 in the heat exchange first sleeve 29 through the adjusting pipe 39, and the air outlet proportional control valve 26 is arranged at one end, far away from the main valve body 1, of the heat exchange connecting pipe 24.

Specifically, in order to further reduce the temperature of the surface of the main valve body 1, thereby preventing the scald of the operator, a water cooling jacket (not shown) is further disposed on the main valve body 1, the water cooling jacket (not shown) is disposed on the outer surface of the main valve body 1, a water cooling cavity (not shown) is formed between the water cooling jacket (not shown) and the outer surface of the main valve body 1, the water cooling cavity (not shown) has a cooling water inlet 41 and a cooling water outlet (not shown), the cooling water inlet 41 is disposed at one end of the water cooling jacket (not shown) close to the air inlet channel 7, the cooling water outlet (not shown) is disposed at one end of the water cooling jacket (not shown) close to the air outlet channel 34, external cooling water enters the water cooling cavity (not shown) from the cooling water inlet 41 and gradually covers the outer surface of the main valve body 1, and the main valve body 1 is subjected to a cooling treatment, the cooled cooling water is discharged from a cooling water outlet (not shown).

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides an ultra-high temperature fast valve, includes the main valve body which characterized in that: a main valve cavity is formed in the main valve body, a main valve medium pipe group and a flow channel double-layer heat insulation structure are arranged in the main valve cavity, the main valve body comprises a high-temperature stop valve and an air quick valve, the high-temperature stop valve is connected with the air quick valve, the main valve cavity comprises an air inlet valve cavity formed in the high-temperature stop valve and an air outlet valve cavity formed in the air quick valve, the air inlet valve cavity is communicated with the air outlet valve cavity, the main valve medium pipe group comprises an air inlet liner pipe and an air outlet liner pipe, an air inlet flow channel is formed in the air inlet liner tube, an air outlet flow channel is formed in the air outlet liner tube, the air inlet flow channel is communicated with the air outlet flow channel, the air inlet liner tube is arranged in the air inlet valve cavity, the air outlet liner tube is arranged in the air outlet valve cavity, and the double-layer heat preservation structure of the flow channel wraps the outer surfaces of at least part of the air inlet liner tube and the air outlet liner tube to preserve heat inside the air inlet liner tube and the air outlet liner tube.

2. Ultrahigh temperature rapid valve according to claim 1 characterized in that: the double-deck insulation construction of runner includes the runner sleeve pipe, the runner sleeve pipe sets up in the outside of the bushing pipe that admits air with the bushing pipe of giving vent to anger, form first heat preservation chamber between runner sleeve pipe and the bushing pipe that admits air and the bushing pipe of giving vent to anger, form second heat preservation chamber between the inner wall of runner sleeve pipe and main valve chamber, all set up insulation material in first heat preservation chamber and the second heat preservation chamber.

3. The ultra high temperature fast valve according to claim 2, characterized in that: set up between the bushing pipe of giving vent to anger and the bushing pipe of admitting air and prevent blowing connection structure, prevent blowing connection structure and be the tubulose setting, prevent blowing connection structure's inner wall is the echelonment structure setting, prevent blowing connection structure correspond the part of the bushing pipe of giving vent to anger and give vent to anger bushing pipe sealing connection, prevent blowing connection structure correspond between the part of the bushing pipe of admitting air and radially form and prevent blowing the clearance, prevent blowing clearance and first heat preservation chamber intercommunication.

4. The ultra high temperature fast valve according to claim 3, characterized in that: the anti-blowing connecting structure is further arranged on the air inlet liner tube and the air outlet liner tube, the air inlet liner tube and the air outlet liner tube are divided into a multi-section structure by the anti-blowing connecting structure, one end of the anti-blowing connecting structure is welded and fixed with the corresponding air outlet liner tube, the other end of the anti-blowing connecting structure is connected with the air outlet liner tube at the adjacent end of the air outlet liner tube, an anti-blowing gap is formed between the air outlet liner tubes at the adjacent end of the air outlet liner tube, and the anti-blowing connecting structure on the air inlet liner tube is the same as the anti-blowing connecting structure on the air outlet liner tube.

5. The ultra high temperature fast valve according to claim 2, characterized in that: the runner sleeve is provided with a transition connection structure, the transition connection structure comprises a first transition connection structure and a second transition connection structure, the first transition connection structure extends obliquely towards the cavity wall of the main valve cavity from one end, close to the air outlet liner pipe, of the air inlet liner pipe, the second transition connection structure extends obliquely towards the cavity wall of the main valve cavity from one end, close to the air inlet liner pipe, of the air outlet liner pipe, and the first transition connection structure and the second transition connection structure are connected with the cavity wall of the main valve cavity.

6. The ultra high temperature fast valve according to claim 1, characterized in that: still set up heat exchange device on the main valve body, heat exchange device sets up the one side that is close to the air rapid valve at the main valve body, heat exchange device includes heat exchange connecting pipe, air intlet proportional control valve and air outlet proportional control valve, set up the connecting hole on the air rapid valve, the both ends intercommunication of connecting hole is always valve pocket and is always outside of the valve body, the one end of heat exchange connecting pipe stretches into connecting hole and always valve pocket intercommunication.

7. The ultra high temperature fast valve according to claim 6, characterized in that: the heat exchange connecting pipe is three layer construction and sets up, the heat exchange connecting pipe includes heat exchange siphunculus, the first sleeve pipe of heat exchange and heat exchange second sleeve pipe, the first sleeve pipe of heat exchange sets up the surface at the heat exchange siphunculus, the second sleeve pipe of heat exchange sets up at the first sheathed tube surface of heat exchange, form heat exchange chamber between the first sleeve pipe of heat exchange and the heat exchange siphunculus, the heat exchange siphunculus is close to one of main valve body and serves and set up a plurality of intercommunication mouths, the heat exchange siphunculus passes through intercommunication mouth and heat exchange chamber intercommunication.

8. The ultra high temperature fast valve according to claim 7, characterized in that: the first sheathed tube pipe wall of heat exchange is towards keeping away from the first sheathed tube central point of heat exchange and is put the extension and form the control tube, the control tube runs through the sheathed tube pipe wall setting of heat exchange second, the air intlet proportional control valve sets up and keeps away from the first sheathed tube one end of heat exchange at the control tube, just the air intlet proportional control valve passes through the control tube and communicates with the first intramural heat exchange chamber of heat exchange, the air exports proportional control valve sets up the one end of keeping away from the main valve body at the heat exchange connecting pipe.

9. The ultra high temperature fast valve according to claim 6, characterized in that: the water-cooling type air valve is characterized in that a water-cooling jacket is further arranged on the main valve body and is arranged on the outer surface of the main valve body, a water-cooling cavity is formed between the water-cooling jacket and the outer surface of the main valve body and is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is arranged at one end, close to the air inlet channel, of the water-cooling jacket, and the cooling water outlet is arranged at one end, close to the air outlet channel, of the water-cooling jacket.

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