CN203348631U - Automatic reversing valve - Google Patents

Automatic reversing valve Download PDF

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Publication number
CN203348631U
CN203348631U CN 201320300894 CN201320300894U CN203348631U CN 203348631 U CN203348631 U CN 203348631U CN 201320300894 CN201320300894 CN 201320300894 CN 201320300894 U CN201320300894 U CN 201320300894U CN 203348631 U CN203348631 U CN 203348631U
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CN
China
Prior art keywords
end cap
spool
fuel gas
smoke
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201320300894
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Chinese (zh)
Inventor
靳世平
舒良锁
张永祥
黄素逸
梁宇明
李坦
刘政杰
孙文浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHAN ANHE ENERGY SAVING TECHNOLOGY Co Ltd
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WUHAN ANHE ENERGY SAVING TECHNOLOGY Co Ltd
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Priority to CN 201320300894 priority Critical patent/CN203348631U/en
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Publication of CN203348631U publication Critical patent/CN203348631U/en
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Abstract

The utility model discloses an automatic reversing valve. The automatic reversing valve comprises an upper end cover with a fuel gas inlet and a smoke outlet, a lower end cover with a fuel gas outlet and a smoke inlet, and valve elements arranged between the upper end cover and the lower end cover and capable of rotating relative to one another, wherein the fuel gas inlet and the smoke outlet are communicated with an external fuel gas pipeline and a smoke vent respectively, the fuel gas outlet and the smoke inlet are respectively communicated with a pipeline on a heat accumulator, and thus fuel gas enters the heat accumulator through the fuel gas outlet and smoke is exhausted out of the heat accumulator through the smoke inlet. The valve elements are provided with a plurality of through holes which are formed symmetrically in the circumferential direction, all the through holes are respectively correspondingly communicated with the fuel gas inlet and the smoke outlet in the upper end cover and the fuel gas outlet and the smoke inlet in the lower end cover through relative rotation of the valve elements, and therefore the fuel gas having entered and the exhausted smoke can be automatically switched and circulate in the heat accumulator. According to the automatic reversing valve, the valve elements and channels in a valve body can be communicated periodically, automatic switching between the fluid channels is competed, the switching frequency can be changed, sealing is good, and switching impact is small.

Description

Automatic diverter valve
Technical field
The utility model belongs to the regenerative combustion furnace field, is specifically related to a kind of selector valve for regenerative combustion furnace, for the flue gas of the air that will enter combustion furnace and discharge, automatically switches and conducting.
Background technique
Recuperative heater is in fact the combination of high-efficiency heat-accumulating heat exchanger and normal reheating furnace, mainly heating furnace body, regenerator, reversing mechanism and fuel, air feed and purging system, consists of.Regenerator is the main body of recuperative heater flue gas waste heat recovery, and it is the shape space, chamber of filling up heat retainer, is the part of flue gas and air flow passage.In oven, regenerator is always used in pairs, and stove can be with a pair of, also can be with several right, and even tens pairs.
When regenerative combustion furnace is worked, the flue gas of fuel gas and discharge need to make its alternating current through regenerator through reversing mechanism.This function realizes by selector valve usually, by the switching change gas flow direction of valve, to realize emitting and absorbing the purpose of heat in regenerator.
Current selector valve adopts three-way diverter valve to be switched usually, and three-way diverter valve mainly comprises valve body, spool, heat-accumulation combustor interface, air flue interface and flue adapter.By the position of regulating spool overhead gage, realize that respectively air flue, flue adapter are connected with the heat-accumulation combustor passage respectively.Be instantaneous switching owing to lighting with two kinds of fluids of flue gas handoff procedure in three-way valve, easily cause the collision to the spool baffle plate of gas in passage, and, in valve, two kinds of gases switchings are frequent, more cause the damage of valve body.And, being sealed into linear sealing between spool baffle plate and valve body, sealing effect is bad.
The model utility content
The utility model aims to provide a kind of automatic diverter valve, it is transformed into plane sealing by the traditional cambered surface sealing between spool and valve seat, by the 360 degree rotations of axle band movable valve plug, periodically realize being communicated with of spool and valve seat fluid passage, thereby complete, fluid passage automatically switches and switching frequency is variable, realizes the purpose that excellent sealing and switching shock are less.
Realize that the concrete technological scheme that the utility model purpose adopts is as follows:
A kind of four-way change-over valve, for recuperative heater, fuel gas is communicated with heat retainer by it with flue gas, realizes entering the combustion gas of heat retainer and the automatic switchover circulation of the flue gas of discharging heat retainer, it is characterized in that, and this selector valve comprises:
Upper end cap with fuel gas inlet and smoke outlet, wherein this fuel gas inlet and smoke outlet are communicated with outside gas pipeline and smoke-ejecting pipe respectively;
Lower end cap with gas outlet and flue gas inlet, wherein this gas outlet and flue gas inlet respectively with heat retainer on pipeline communication, combustion gas and flue gas are respectively by gas outlet and flue gas inlet inlet and outlet heat retainer;
Be arranged between described upper end cap and lower end cap can counterrotating spool, there are a plurality of through holes that circumferentially are arranged symmetrically with on it,
Rotation by the relative upper end cap of spool and lower end cap, realize each through hole on it respectively with upper end cap on fuel gas inlet and smoke outlet, and the corresponding conducting of the difference of the gas outlet on lower end cap and flue gas inlet, the automatic switchover circulation in heat retainer of the combustion gas that realization enters and the flue gas of discharge.
As of the present utility model further preferred, it between described spool and this upper end cap and lower end cap, is end face seal.
Further preferably the fuel gas inlet on described upper end cap and smoke outlet connect respectively the upper end cap both ends of the surface as of the present utility model, thereby relatively realize in rotation and being communicated with respectively or sealing of each through hole on spool at described spool.
As of the present utility model further preferred, the fuel gas inlet on described upper end cap is two in the end face upper shed contacted with spool of upper end cap, and relative other end upper shed is one, for being communicated with described outside gas pipeline.
As of the present utility model further preferred, the flue gas inlet on described upper end cap is two in the end face upper shed contacted with spool of upper end cap, and relative other end upper shed is one, for being communicated with described smoke-ejecting pipe.
Further preferably the gas outlet on described lower end cap and flue gas inlet connect respectively the lower end cap both ends of the surface as of the present utility model, thereby relatively realize in rotation and being communicated with respectively or sealing of each through hole on spool at described spool.
As of the present utility model further preferred, the gas outlet on described lower end cap is two in the end face upper shed contacted with spool of lower end cap, and relative other end upper shed is one.
As of the present utility model further preferred, the flue gas inlet on described lower end cap is two in the end face upper shed contacted with spool of lower end cap, and relative other end upper shed is one.
As of the present utility model further preferably, symmetrical centered by the through hole on described spool, sectional shape can be circular arc, fan-shaped, kidney-shaped or other shapes.
As of the present utility model further preferred, the sectional shape of described upper fuel gas inlet, gas outlet, flue gas inlet and the smoke outlet contacted with spool can be triangle, rectangle or other polygonal shapes.
Four-way change-over valve of the present utility model is transformed into plane sealing by the traditional cambered surface sealing between spool and upper and lower end cap, sealability that can poppet; When the switching of property performance period, spool always continuously, at the uniform velocity, stable rotation, can realize that fluid passage automatically switches and can reach the variable purpose of switching frequency.Compared with prior art, this equipment has valve passage and frequently switches, and the flow passage component commutation cycle is short, the valve switch speed can be regulated automatically, and valve seal is good, and can realize that temperature, pressure surge in stove, in regenerator are little, the thermal efficiency is higher, the life-span advantages of higher.Can realize the fluid passage automatic switchover by the utility model, handoff procedure is a continuous process, reduced gas to the collision of valve and can adjust the valve switching frequency according to on-the-spot actual operating mode, the face that is sealed into sealing between spool and upper and lower end cap, improved sealing effect greatly.
The accompanying drawing explanation
The structural representation of the selector valve that Fig. 1 is the utility model embodiment;
The upper end cap 3 that Fig. 2 is the utility model embodiment, the composite structure schematic diagram of spool 4 and lower end cap 5;
The valve plan view that Fig. 3 is the utility model embodiment;
Spool 4 and upper end cap 3 that Fig. 4 is the utility model embodiment, four access diagrams of surface of contact between lower end cap 5, wherein (a) is circular embodiment for channel cross-section, for channel cross-section, is (b) another fan-shaped embodiment;
The structural representation that Fig. 5 is spool 4 of the present utility model, the embodiment that wherein (a) is kidney-shaped for cross section, (b) for cross section is fan-shaped embodiment, be (c) another kind of fan-shaped embodiment for cross section;
The passage that Fig. 6 is upper end cap 3 of the present utility model and lower end cap 5 is tube welding composition model figure, and wherein (a) is the pipe embodiment of tube welding vertically upward, is (b) another embodiment of pipe inclination several angle welding;
The passage that Fig. 7 is upper end cap 3 of the present utility model and lower end cap 5 is that centre has baffle plate, the schematic diagram that casing hollows out up and down, and wherein a is the embodiment that channel vertical makes progress, and is (b) passage another embodiment in side;
The passage that Fig. 8 is upper end cap 3 of the present utility model and lower end cap 5 is to dig out the fluid passage schematic diagram in solid body, and the embodiment that wherein (a) makes progress for channel vertical (b) is passage another embodiment in side;
The passage that Fig. 9 is upper end cap 3 of the present utility model and lower end cap 5 is to dig out fluid passage schematic diagram (2) in solid body, and the embodiment that wherein (a) makes progress for channel vertical (b) is passage another embodiment in side.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.In addition, involved technical characteristics in each mode of execution of the utility model the following describes just can not mutually combine as long as form each other conflict.
Automatic diverter valve of the present utility model is for recuperative heater, realizes that the gaseous fuel of recuperative heater and the automatic switchover of the flue gas of discharge circulate.The gaseous fuel of recuperative heater and the flue gas of discharge are through this automatic diverter valve, constantly switch mutually the flow pass of fuel and flue gas, the heat that first will discharge flue gas is passed to heat retainer, again the heat of heat retainer is finally passed to gaseous fuel after commutation, reduce the discharge flue-gas temperature to reach, increase the purpose that enters the burner hearth fuel temperature.
Particularly, the automatic diverter valve of the present embodiment comprises rotating shaft 1, transmission part 2, upper end cap 3, spool 4 and lower end cap 5.
Wherein, upper end cap 3, spool 4, lower end cap 5 are axial symmetry object, are preferably cylindrical body, can be also round platform, rectangular block or other structures.Upper end cap 3, spool 4 and lower end cap 5 centers all have axial hole, and rotating shaft 1 through the central through bore of upper end cap 3, spool 4, lower end cap 5, coaxially is connected in series the three successively.
Spool 4 is between upper end cap 3 and lower end cap 5, and rotating shaft 1 and spool 4 fixed installations, can rotate with the rotation of rotating shaft 1.Upper end cap 3 and lower end cap 5 lay respectively at the above and below of spool 4, and rotating shaft 1 is set in the through hole of upper end cap 3 and lower end cap 5, and rotating shaft can relatively rotate with respect to upper end cap 3 and lower end cap 5.An axial end end face of upper end cap 3 and an axial end end face of lower end cap 5 seal with two axial end contacts of spool 4 respectively, and spool 4 can rotate by the opposite end lid under the drive of rotating shaft 1.The sectional drawing plan view of upper end cap 3, spool 4, lower end cap 5 and plan view following Fig. 1-5.
Driving component 2 is fixedly connected with rotating shaft 1, for external impetus being transferred to rotating shaft 1, with drive shaft 1 rotation.Driving component 2 can adopt motor to connect the drive mechanisms such as gear, chain, belt, connecting rod, chain, cam and drive rotation, also can adopt manual mode rotating shaft, drives rotatable parts, reaches the purpose of the open and close of regulating passage.
All have the runner through hole of perforation on upper end cap 3 and lower end cap 5, for the circulation of flue gas or air.Particularly, the upper-end surface of the upper end cap 3 of the present embodiment preferably has two through holes 31,32, and there are four through holes 321,322,311,312 lower end surface, and there are four through holes 511,512,521,522 upper-end surface of lower end cap 5, and there are two through holes 51,52 lower end surface.
Wherein, through hole 31 connects with through hole 311,312, and through hole 32 connects with through hole 321,322.Through hole 51 connects with through hole 511,512, and through hole 52 connects with through hole 521,522.Through hole 321 is corresponding with 511, wherein dead in line, and 322 is corresponding with 522, wherein dead in line, 311 is corresponding with 521, wherein dead in line, and 312 is corresponding with 512, wherein the medial axis of dead in line overlaps respectively.
The opening section shape of the through hole in upper end cap 3 and lower end cap 5 is preferably circle or ellipse, can be also other shapes, for example triangle, rectangle or other polygonal shapes.
Spool 4 and upper end cap 3 or and lower end cap 5 between four access diagrams of surface of contact as Fig. 4, the access diagram of spool 4 is as Fig. 5.
Needs according to various actual environments, upper end cap 3 can be become by tube welding to form also and can in solid body, dig out fluid passage with the runner via design in lower end cap 5, perhaps be designed in casing, the method that has baffle plate, casing to hollow out up and down in the middle of adopting realizes.Wherein the direction of pipe, casing, position, aperture are variable.Schematic diagram is as Fig. 6～9
Have a plurality of groove holes that upper and lower end face is axially connected on spool 4, for the circulation of flue gas or fuel gas, in the present embodiment, the groove hole is preferably two, can be also other quantity.As shown in Figure 5, symmetrical centered by each groove hole on end face, groove hole sectional shape can be circular arc, fan-shaped, kidney-shaped or other shapes.
During work, when position shown in Fig. 2, through hole 31 can be decided to be to combustion gas (as air, oxygen etc.) entrance, through hole 32 is decided to be to smoke outlet, through hole 51,52 connects respectively heat retainer passage correspondingly, now between spool 4 and upper end cap 3 and lower end cap 5, forms local path and local sealing.
As Fig. 2, the passage 311 of valve upper end cap links with valve core channel 41 at present, between passage 312 and spool, seals, and passage 321 links with valve core channel 42, between passage 322 and spool, seals; Passage 511 and the valve core channel 42 of valve lower end cap link, and between passage 512 and spool, seal, and passage 521 links with spool 41 passages, between passage 522 and spool, seals.Now in valve, the flow passage of combustion gas and flue gas is as follows: the combustion gas that gas fan is blown into, flow to passage 521 by through hole 31 along passage 311 via through holes 41, and finally by through hole 52, finally enter corresponding heat retainer pipeline.Now, flue gas is by corresponding heat retainer pipeline via through holes 51 flow channels 511, and via through holes 42 flow channels 321, finally passes through through hole 32 discharged to atmosphere.
Spool 4 dextrorotations are turn 90 degrees to (seeing from the top down) and carry out passage when switching, seal between the passage 311 of valve upper end cap and spool, passage 312 valve core through hole 42 link, and between passage 321 and spool, seal, and passage 322 links with valve core channel 41; Between the passage 511 of valve lower end cap and spool, seal, passage 512 links with valve core channel 42, between passage 521 and spool, seals, and passage 522 links with valve core channel 41.In valve, the flow passage of combustion gas and flue gas is as follows: the combustion gas that gas fan is blown into, flow to passage 512 by through hole 31 along passage 312 via through holes 42, and finally by through hole 51, enter corresponding heat retainer passage; Flue gas is by corresponding heat retainer passage via through holes 52 flow channels 522, and via through holes 41 flow channels 322, finally passes through through hole 32 discharged to atmosphere.
Spool 4 is continued to 90-degree rotation, and passage 311 and the valve core channel 42 of valve upper end cap link, and between passage 312 and spool, seal, and passage 321 links with spool 41 passages, between passage 322 and spool, seals; Passage 511 and the valve core channel 41 of valve lower end cap link, and between passage 512 and spool, seal, and passage 521 links with valve core channel 42, between passage 522 and spool, seals.In valve, the flow passage of combustion gas and flue gas is as follows: the combustion gas be blown into by gas fan, flow to passage 521 by through hole 31 along passage 311 via through holes 42, and finally by through hole 52, enter corresponding heat retainer passage; Flue gas is by corresponding heat retainer passage via through holes 51 flow channels 511, and via through holes 41 flow channels 321, finally passes through through hole 32 discharged to atmosphere.
Spool 4 is continued to 90-degree rotations, the passage 311 of valve upper end cap with and spool between seal, passage 312 links with valve core channel 41, between passage 321 and spool, seals, passage 322 and valve core channel 42 link; Between the passage 511 of valve lower end cap and spool, seal, passage 512 links with valve core channel 41, between passage 521 and spool, seals, and passage 522 links with valve core channel 42.In valve, the flow passage of combustion gas and flue gas is as follows: the combustion gas be blown into by gas fan, flow to passage 512 by through hole 31 along passage 312 via through holes 41, and finally by through hole 51, enter corresponding heat retainer passage; Flue gas is by corresponding heat retainer passage via through holes 52 flow channels 522, and via through holes 42 flow channels 322, finally passes through through hole 32 discharged to atmosphere.
By the spool of this device changeover valve, can realize valve auto-alternate fluid passage and can be according to field demand adjusting the speed of spool, adjustments of gas is flowed through time of heat retainer.Spool, in the process of rotation switching, by combining closely between spool and upper and lower end cap, has better been realized the face sealing for fluid.Owing at the uniform velocity rotating in the Spool rotating process, the instantaneous switching of valve before comparing, having reduced in handoff procedure due to gas, for the valve percussion, has increased the life-span of valve.
In the present embodiment, upper end cap 3 is from single channel, to flow into respectively by two, the passage that Twin channel flows out, and lower end cap 5 is from Twin channel, to flow into respectively by two, the passage that single channel flows out.According to the needs of various actual environments, this channels designs can be become formed also and can in solid body, be dug out fluid passage by tube welding, or be designed in casing, the method that has baffle plate, casing to hollow out up and down in the middle of adopting realizes.Wherein the direction of pipe, casing, position, aperture are variable.
Certainly, upper end cap 3 and lower end cap Shang Xia 5 the via openings quantity on both ends of the surface also can specifically arrange according to actual needs, be not defined as above-mentioned quantity and position.For example can also be designed to only have one to flow into from single channel upper end cap 3 and lower end cap 5, the passage that Twin channel flows out; Spool 4 is designed to only have one to flow into from Twin channel, the passage that single channel flows out.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (9)

1. an automatic diverter valve, for recuperative heater, fuel gas is communicated with heat retainer by it with flue gas, realizes entering the combustion gas of heat retainer and the automatic switchover circulation of the flue gas of discharging heat retainer, it is characterized in that, and this selector valve comprises:
Have the upper end cap (3) of fuel gas inlet and smoke outlet, wherein this fuel gas inlet and smoke outlet are communicated with outside gas pipeline and smoke-ejecting pipe respectively;
Lower end cap (5) with gas outlet and flue gas inlet, wherein this gas outlet and flue gas inlet respectively with heat retainer on pipeline communication, combustion gas and flue gas are respectively by gas outlet and flue gas inlet inlet and outlet heat retainer;
Be arranged between described upper end cap (3) and lower end cap (5) can counterrotating spool (4), there are a plurality of through holes that circumferentially are arranged symmetrically with on it,
Rotation by the relatively described upper end cap of spool (4) (3) and lower end cap (5), realize each through hole on it respectively with upper end cap (3) on fuel gas inlet and smoke outlet, and the corresponding conducting of the difference of the gas outlet on lower end cap (5) and flue gas inlet, thereby the automatic switchover circulation of the flue gas of the combustion gas that realization enters and discharge in heat retainer.
2. automatic diverter valve according to claim 1, is characterized in that, between described spool (4) and this upper end cap (3) and lower end cap (5), is end face seal.
3. automatic diverter valve according to claim 1 and 2, it is characterized in that, fuel gas inlet on described upper end cap (3) and smoke outlet connect respectively upper end cap (3) two broken ends of fractured bone faces, thereby relatively realize in rotation and being communicated with respectively or sealing of each through hole on spool (4) at described spool (4).
4. automatic diverter valve according to claim 3, it is characterized in that, fuel gas inlet on described upper end cap (3) is two in the end face upper shed contacted with spool (4) of upper end cap (3), and relative other end upper shed is one, for being communicated with described outside gas pipeline.
5. according to claim 1 or 2 or 4 described automatic diverter valves, it is characterized in that, smoke outlet on described upper end cap (3) is two in the end face upper shed contacted with spool (4) of upper end cap (3), and relative other end upper shed is one, for being communicated with described smoke-ejecting pipe.
6. automatic diverter valve according to claim 5, it is characterized in that, gas outlet on described lower end cap (5) and flue gas inlet connect respectively lower end cap (5) two ends end face, thereby relatively realize in rotation and being communicated with respectively or sealing of each through hole on spool (4) at described spool (4).
7. automatic diverter valve according to claim 6, is characterized in that, the gas outlet on described lower end cap (5) is two in the end face upper shed contacted with spool (4) of lower end cap (5), and relative other end upper shed is one.
8. automatic diverter valve according to claim 7, is characterized in that, the flue gas inlet on described lower end cap (5) is two in the end face upper shed contacted with spool (4) of lower end cap (5), and relative other end upper shed is one.
According to claim 1,2,4 and 6-8 in the described automatic diverter valve of any one, it is characterized in that, symmetrical centered by the through hole on described spool (4), sectional shape can be circular arc, fan-shaped or kidney-shaped.
CN 201320300894 2013-05-29 2013-05-29 Automatic reversing valve Expired - Lifetime CN203348631U (en)

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Application Number Priority Date Filing Date Title
CN 201320300894 CN203348631U (en) 2013-05-29 2013-05-29 Automatic reversing valve

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291961A (en) * 2013-05-29 2013-09-11 武汉安和节能新技术有限公司 Automatic reversing valve
CN104653307A (en) * 2015-03-04 2015-05-27 钱江集团浙江亿江机电有限公司 Dual-fuel transfer switch
CN110686099A (en) * 2019-09-27 2020-01-14 曼彻彼斯高新技术有限公司 Pneumatic logistics three-position four-way reversing valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291961A (en) * 2013-05-29 2013-09-11 武汉安和节能新技术有限公司 Automatic reversing valve
CN104653307A (en) * 2015-03-04 2015-05-27 钱江集团浙江亿江机电有限公司 Dual-fuel transfer switch
CN110686099A (en) * 2019-09-27 2020-01-14 曼彻彼斯高新技术有限公司 Pneumatic logistics three-position four-way reversing valve
CN110686099B (en) * 2019-09-27 2024-04-19 曼彻彼斯高新技术有限公司 Pneumatic logistics three-position four-way reversing valve

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Granted publication date: 20131218

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