CN208237138U - A kind of Direct Travel reversal valve for heat storage type combustion - Google Patents
A kind of Direct Travel reversal valve for heat storage type combustion Download PDFInfo
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- CN208237138U CN208237138U CN201820764231.3U CN201820764231U CN208237138U CN 208237138 U CN208237138 U CN 208237138U CN 201820764231 U CN201820764231 U CN 201820764231U CN 208237138 U CN208237138 U CN 208237138U
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Abstract
The utility model discloses a kind of Direct Travel reversal valves for heat storage type combustion, including valve body, valve rod, power part, the first sealing structure and second seals structure.Wherein, power part is removably disposed on valve body, and its output end connects valve rod, moves linearly for driving stem.Valve inner is goed deep into the lower end of valve rod, and valve rod is connect by the first sealing structure with body movable sealing.Second seals structure is set to the lower end of valve rod, the open and close of the burner side interface for application valve body.The application is sealed valve rod and valve body by the first sealing structure, is sealed by second seals structure to burner side interface, has better seal effect compared with the existing technology.In addition, the application is moved linearly using cylinder as dynamical element driving second seals structure, guarantee that the stroke of second seals structure is most short, therefore the used time is minimum, to improve working sensitivity and working efficiency.
Description
Technical field
It is the utility model relates to the reversal valve technical field of combustion system, in particular to a kind of for the straight of heat storage type combustion
Return of stroke valve.
Background technique
With the continuous propulsion of economic globalization, resource and environmental problem day aobvious protrusion, industrial furnace is as energy consumption
How rich and influential family carries out efficient, environmentally friendly power-saving technology as the most important thing as early as possible.
Regenerative combustion technology uses direct heat exchange mode, by air or/and gas-preheating to 1000 DEG C or more, smoke evacuation temperature
Degree realizes maximum waste heat recycling at 150 DEG C or so.
In heat storage type combustion, high-temperature flue gas is discharged from heat-accumulating burner, and heat storage is heated to close to fire box temperature；Flue gas
Out through the Vavle switching that commutates after burner, which switches to combustion state by smoke evacuation state, and the combustion air of room temperature or combustion gas enter
Burner draw heat storage thermal energy to 1000 DEG C or more, and enter heating furnace in then or air be mixed and burned.
Above-mentioned heat transfer process is commutated by exchange system, wherein reversal valve is the critical component of exchange system.It changes
It is an important factor for influencing its service life to the leakproofness of valve, but in the prior art, there are two sealing problems for reversal valve: first is that
It is poorly sealed between valve plate when burner side-inlet is closed；Second is that interior leakage is easy to appear at the dynamic sealing of valve rod and valve body,
Even as the problem of the ease gas of valve outside.
Utility model content
To solve the above-mentioned problems, the technical solution of the utility model is:
A kind of Direct Travel reversal valve for heat storage type combustion, including valve body, valve rod and power part, the power part
Part is set on the valve body, and its output end connects the valve rod, further includes the first sealing structure and second seals structure, described
First sealing structure includes the clamping cap being socketed on valve rod, sleeve, locating part and sealing element；
The power part driving stem linear movement；
The second seals structure is set to the end of valve rod, and the open and close of the burner side interface of application valve body；
The sleeve and the clamping cap are detachably connected with valve body；The locating part and the sealing element are built in
In the sleeve, and the downward displacement freedom of locating part is constrained by sleeve；The sealing element is carried out by clamping cap
It pre-tightens.
Preferably, the clamping cap includes the flange part being socketed on valve rod and center canister portion, the flange part
It is detachably connected with valve body, one end of the center canister portion is set to the center of flange part, and the other end is plugged in sleeve and presses
Tight seal.
Preferably, the lower end of the sleeve limits the locating part to in-flanges, the flange.
Preferably, the sealing element is V-shaped seal ring.
Preferably, the second seals structure includes valve plate and valve plate sealing ring, and the valve plate is equipped with slot bottom and is wider than slot
The mounting groove of mouth, the valve plate are removably attachable to the end of valve rod, and the valve plate sealing ring is tightly embedded intp in mounting groove.
Preferably, a contact surface of the valve plate sealing ring and valve plate is equipped with deformation dashpot.
Preferably, the output flange of the valve rod and power part connect, and the output end of valve rod and power part it
Between be filled with heat-barrier material.
Preferably, the power part includes cylinder and bracket, and the cylinder is fixed on valve body by the bracket, institute
State the piston rod connection valve rod of cylinder.
Preferably, the valve body further includes blower side interface, access hole and maintenance flange, the blower side interface connection
Extraneous blower fan system, the maintenance flange are detachably arranged at the access hole.
Preferably, the locating part is retaining ring.
Compared with the existing technology, the beneficial effects of the utility model are:
1, power part drives the second sealing mechanism linear reciprocal movement by valve rod, to control the logical of burner side interface
It is disconnected.Linear motion guarantees that the stroke of second seals structure is most short, therefore the used time is minimum, to improve working sensitivity and work
Efficiency.
2, in the case that the gap between valve rod and sleeve is certain, second seals structure by clamping cap to sealing element into
Row pre-tightens, and fits closely sealing element with valve rod, to guarantee the leakproofness of valve rod and valve body.
3, the slot bottom of mounting groove is wider than notch, and slot bottom is seamlessly transitted to notch；The shape and size and installation of embedded division
Slot is embedded in mounting groove to matching, which solves the problems, such as that valve plate sealing ring is easy to fall off valve plate.
4, in use process, especially the smoke evacuation stage, the temperature of system is higher, by Effect of Materials valve plate and valve plate sealing ring
Can deform slightly, deformation dashpot for both provide the cushion space of deformation, to improve valve plate and valve plate sealing ring
Service life.
5, heat-barrier material is filled between valve rod and cylinder piston rod, the temperature for avoiding medium is transmitted to gas by valve rod
Cylinder and damage is generated to it.
6, in later period maintenance or maintenance, reversal valve internal structure can be overhauled by opening maintenance flange, without
Remove entire valve.
Detailed description of the invention
Fig. 1 is the overall schematic of the reversal valve of the application；
Fig. 2 is the portion the A enlarged drawing of Fig. 1；
Fig. 3 is the portion the B enlarged drawing of Fig. 1.
Wherein, 101, valve body, 101-1, blower side interface, 101-2, burner side interface, 101-3, maintenance flange, 102, valve
Bar, 201, cylinder, 202, bracket, 301, flange, 302, heat-barrier material, 401, clamping cap, 401-1, flange part, 401-2, in
Heart canister portion, 402, sleeve, 403, sealing element, 404, locating part, 501, connector sleeve, 502, valve plate, 503, valve plate sealing ring, 503-
1, embedded division.
Specific embodiment
It is described in detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1-3, a kind of reversal valve for heat storage type combustion, for switching the air and flue gas of air side, or
Combustion gas and the flue gas for switching combustion gas side, can be vertically arranged, can also be horizontally disposed with, depending on the needs of system, for the ease of
It illustrates, is illustrated by taking vertically disposed operating condition as an example below.
Direct Travel reversal valve for heat storage type combustion includes valve body 101, valve rod 102, power part, the first sealing structure
And second seals structure.Wherein, power part is removably disposed on valve body 101, and its output end connects valve rod 102,
It is moved linearly for driving stem 102.The lower end of valve rod 102 is goed deep into inside valve body 101, and valve rod 102 passes through the first sealing knot
Structure is connect with 101 dynamic sealing of valve body.Second seals structure is set to the lower end of valve rod 102, and the burner for application valve body 101 flanks
The open and close of mouth 101-2.
First sealing structure includes the clamping cap 401 being socketed on valve rod 102, sleeve 402, locating part 404 and close
Sealing 403.Wherein, clamping cap 401 and sleeve 402 are removably attachable on valve body 101 by fastener, locating part 404
It is built in sleeve 402 with sealing element 403, the downward displacement freedom of locating part 404 is constrained by sleeve 402；Limit
Retaining ring can be selected for limiting to sealing element 403 in position part 404；Clamping cap 401 has downward preload to sealing element 403
Power, the size of pretightning force by adjusting clamping cap 401 and valve body 101 relative positional relationship and realize.
Power part drives the second sealing mechanism linear reciprocal movement by valve rod 102, to control burner side interface
The on-off of 101-2.Linear motion guarantees that the stroke of second seals structure is most short, therefore the used time is minimum, to improve work spirit
Sensitivity and working efficiency.
In the case that gap between valve rod 102 and sleeve 402 is certain, second seals structure is right by clamping cap 401
Sealing element 403 is pre-tightened, and fits closely sealing element 403 with valve rod 102, to guarantee the sealing of valve rod 102 Yu valve body 101
Property.
Please continue to refer to Fig. 2, in one embodiment, a upper embodiment is optimized, clamping cap 401 includes flange
Pan portion 401-1 and center canister portion 401-2, wherein flange part 401-1 is detachably connected on valve body 101 by fastener,
The upper end of center canister portion 401-2 is fixed on the center of flange part 401-1, and lower end is goed deep into sleeve 402 compressing sealing element
403.Preferably, flange part 401-1 and center canister portion 401-2 are integrally formed in the present embodiment.
Please continue to refer to Fig. 2, in another embodiment, a upper embodiment is optimized, the upper end of sleeve 402 to
Flanging, the flange are connect with valve body 101 by fastener；The lower end of sleeve 402 is to in-flanges, and the flange is to locating part 404
Displacement freedom downward in the axial direction is constrained.
In another embodiment, a upper embodiment is optimized, sealing element 403 selects V-shaped seal ring.
Referring to Fig. 3, in another embodiment, a upper embodiment is optimized, second seals structure includes valve
Plate 502, conical seal ring and connector sleeve 501.Wherein, valve plate 502 is mounted on the end of valve rod by connector sleeve 501；Valve plate
502 lower part is plate-like, and is equipped with mounting groove, and the slot bottom of the mounting groove is wider than notch, and slot bottom is seamlessly transitted to notch；Valve plate
Sealing ring 503 includes embedded division 503-1 and sealing, wherein the shape and size of embedded division 503-1 and mounting groove to matching,
And be embedded in mounting groove, sealing protrudes from valve plate 502, and when closing burner side interface 101-2, sealing and valve body 101 are close
Envelope connection.
In the prior art, the sealing ring on valve plate 502 is easy to fall off after a period of use, and in the present embodiment, valve plate is close
The type of attachment of seal 503 and valve plate 502 solves the problems, such as this.
Further, in the present embodiment, a contact surface of valve plate sealing ring 503 and valve plate 502 is equipped with the shape of annular
Slow down jet-bedding.In use process, especially the smoke evacuation stage, the temperature of system is higher, is sealed by Effect of Materials valve plate 502 and valve plate
Circle 503 can deform slightly, and deformation dashpot provides the cushion space of deformation for the two.
Further, valve plate sealing ring 503 is fluorubber material, carries out targetedly type selecting according to circulation medium difference,
When medium has temperature and corrosivity, and contains micro dust, the valve plate sealing ring 503 of fluorubber material is using hard sealing shape
Formula；When medium is air, the valve plate sealing ring 503 of fluorubber material uses flexible soft seal.
Fig. 1 and Fig. 2 are please referred to, in another embodiment, a upper embodiment is optimized, power part includes cylinder
201 and bracket 202.Wherein, 202 surrounding of bracket is divulged information, in order to 102 natural cooling of valve rod.Bracket 202 is solid by fastener
It is scheduled on valve body 101, cylinder 201 is fixed on bracket 202, and the output end of cylinder 201, i.e. piston rod, is connected by flange 301
Connect valve rod 102.Generate damage to it to avoid the temperature of medium from being transmitted to cylinder 201 by valve rod 102, in the present embodiment
Heat-barrier material 302 is filled between 201 piston rod of valve rod 102 and cylinder.
Referring to Fig. 1, in another embodiment, a upper embodiment is optimized, except above-mentioned burner side access hole
Outside, valve body 101 further includes blower side interface 101-1, access hole and maintenance flange 101-3, wherein blower side interface 101-1
Extraneous blower fan system is connected, maintenance flange 101-3 is mounted at access hole by fastener.In later period maintenance or maintenance, beat
Reversal valve internal structure can be overhauled by opening maintenance flange 101-3, without removing entire valve.
Disclosed above is only some embodiments of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (10)
1. a kind of Direct Travel reversal valve for heat storage type combustion, including valve body, valve rod and power part, the power part
On the valve body, and its output end connects the valve rod, which is characterized in that further includes the first sealing structure and the second sealing
Structure, first sealing structure include the clamping cap being socketed on valve rod, sleeve, locating part and sealing element；
The power part driving stem linear movement；
The second seals structure is set to the end of valve rod, and the open and close of the burner side interface of application valve body；
The sleeve and the clamping cap are detachably connected with valve body；The locating part and the sealing element are built in described
In sleeve, and the downward displacement freedom of locating part is constrained by sleeve；The sealing element is pre-tightened by clamping cap.
2. reversal valve as described in claim 1, which is characterized in that the clamping cap includes the ring flange being socketed on valve rod
Portion and center canister portion, the flange part are detachably connected with valve body, and one end of the center canister portion is set in flange part
The heart, the other end are plugged in sleeve and compress sealing element.
3. reversal valve as described in claim 1, which is characterized in that the lower end of the sleeve is to in-flanges, and the flange is to institute
Locating part is stated to be limited.
4. reversal valve as described in claim 1, which is characterized in that the sealing element is V-shaped seal ring.
5. reversal valve as described in claim 1, which is characterized in that the second seals structure includes valve plate and valve plate sealing
Circle, the valve plate are equipped with the mounting groove that slot bottom is wider than notch, and the valve plate is removably attachable to the end of valve rod, the valve
Plate sealing ring is tightly embedded intp in mounting groove.
6. reversal valve as claimed in claim 5, which is characterized in that set on a contact surface of the valve plate sealing ring and valve plate
The tangible jet-bedding that slows down.
7. reversal valve as described in claim 1, which is characterized in that the connection of the output flange of the valve rod and power part,
And heat-barrier material is filled between valve rod and the output end of power part.
8. reversal valve as described in claim 1, which is characterized in that the power part includes cylinder and bracket, the cylinder
It is fixed on valve body by the bracket, the piston rod of the cylinder connects valve rod.
9. reversal valve as described in claim 1, which is characterized in that the valve body further include blower side interface, access hole and
Flange is overhauled, the blower side interface connects extraneous blower fan system, and the maintenance flange is detachably arranged at the access hole.
10. reversal valve as described in claim 1, which is characterized in that the locating part is retaining ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764231.3U CN208237138U (en) | 2018-05-22 | 2018-05-22 | A kind of Direct Travel reversal valve for heat storage type combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820764231.3U CN208237138U (en) | 2018-05-22 | 2018-05-22 | A kind of Direct Travel reversal valve for heat storage type combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237138U true CN208237138U (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820764231.3U Active CN208237138U (en) | 2018-05-22 | 2018-05-22 | A kind of Direct Travel reversal valve for heat storage type combustion |
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| CN (1) | CN208237138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882602A (en) * | 2019-04-10 | 2019-06-14 | 浙江天地环保科技有限公司 | A kind of device improving the poppet sealing of RTO furnace |
-
2018
- 2018-05-22 CN CN201820764231.3U patent/CN208237138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882602A (en) * | 2019-04-10 | 2019-06-14 | 浙江天地环保科技有限公司 | A kind of device improving the poppet sealing of RTO furnace |
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