CN201875202U - Four-way reversing valve - Google Patents
Four-way reversing valve Download PDFInfo
- Publication number
- CN201875202U CN201875202U CN2010206333570U CN201020633357U CN201875202U CN 201875202 U CN201875202 U CN 201875202U CN 2010206333570 U CN2010206333570 U CN 2010206333570U CN 201020633357 U CN201020633357 U CN 201020633357U CN 201875202 U CN201875202 U CN 201875202U
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- valve
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- shaft
- rotary
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Abstract
A four-way reversing valve comprises a valve body, four partition plates, a valve shaft, a rotary valve plate and a pneumatic actuator. The valve body is in a square box structure, four vents are arranged on the periphery of the valve body symmetrically, the four partition plates are respectively arranged in the valve body, the lower portion of the valve shaft is inserted into the valve body and movably connected to the valve body, the upper end of the valve shaft extends out of the upper end face of the valve body, the rotary valve plate is arranged in the valve body and connected to the valve shaft, the edge of the rotary valve plate is matched with the partition plates in the valve body, and the pneumatic actuator is connected to the upper end of the valve shaft. The four-way reversing valve is characterized in that the valve shaft is deviated from the center line of the valve body. The valve shaft is in eccentric structure, so that leakage caused by rotating clearances among the valve shaft and the partition plates is overcome.
Description
Technical field
The utility model relates to selector valve, particularly a kind of four-way change-over valve that commutates between the cool air of regenerative combustion system, the high-temperature flue gas on the industrial furnace.
Background technique
The four-way change-over valve that present regenerative combustion system is adopted mainly contains three kinds, and its structural feature is as follows:
1, drawing and pulling type four-way change-over valve: structure is the casing form, and is airtight or open each cavity to realize commutation by the mobile plate knee-action in the casing, compresses seal ring by mobile plate and realizes sealing.Its problem is bulky, mainly is applicable to centralized commutation, can not adapt to dispersion and arrange flexibly, and slow motion.
2, rotary drum-type four-way change-over valve: form is inside and outside two tubular constructions.The Inner tube is a rotary drum, and urceolus is a stationary magazine creel.Urceolus respectively with air, flue gas, and A, B two to being connected, drive the Inner tube by pneumatic actuator and do 90 ° rotation and realize commutation function. characteristics are that volume is little, but have leakage problem between the inner/outer tube.
3, common rotary type four-way selector valve: structure is the small box body form, and Inner portion is four independently stationary barrier and the swivel plates that axis drives. doing back and forth by pneumatic actuator driven rotary plate, 90 ° rotation realizes commutation function.Characteristics are that volume is little, action is fast, can realize the requirement of distributing commutation.But the sealing of this selector valve is to realize by the Stamping Steel Ribbon that swivel plate is fixed on the dividing plate, and this face seal mode is not very tight; Rotate on center line owing to valve shaft in addition, thereby must leave the gap between valve shaft and the stationary barrier, this just makes reveals unavoidably.
Summary of the invention
The purpose of this utility model is to design a kind of four-way change-over valve, can have the advantage of above-mentioned various selector valve, and good leak tightness, do not have to reveal.
For achieving the above object, the technical solution of the utility model is:
Four-way change-over valve comprises, valve body, and the square box structure is provided with four air ports symmetrically around the valve body; Four dividing plates are separately positioned in the valve body; Valve shaft, bottom are inserted in the valve body, are movably connected on valve body, and the valve body upper-end surface is stretched out in the valve shaft upper end; Rotary valve plate is positioned at valve body, is connected in valve shaft; Dividing plate in rotary valve plate outer rim and the valve body cooperates; Pneumatic actuator is connected in the valve shaft upper end; It is characterized in that described valve shaft departs from the setting of valve body center line.
Further, the rounded shape of described rotary valve plate, correspondence has semi-circular through hole on each dividing plate, mates with rotary valve plate.
On the outer rim of described rotary valve plate, stud with the O RunddichtringO; Be connected by flange between described pneumatic actuator and the valve body.
Advantage of the present utility model is:
The valve shaft of the utility model four-way change-over valve adopts the eccentric structure, and making between valve shaft and the dividing plate has not had to contact, thereby has solved the leakage problem that running clearance brought between valve shaft and the dividing plate; Rotary valve plate is a round structure, makes that the O RunddichtringO is installed becomes possibility, and this kind linear sealing form has improved sealing effect greatly, and changes simple and convenient; Be connected with form of flanges between pneumatic actuator and the valve body, be convenient to safeguard and change.Novel structure, reasonable in design, volume is little, flexible movements are quick, and long service life can satisfy the requirement of distributing commutation.
Description of drawings
Fig. 1 holds structural representation to valve under the arm for the utility model four-way.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the enlarged view of C portion among Fig. 2.
Embodiment
Referring to Fig. 1 ~ Fig. 3, four-way change-over valve of the present utility model comprises, valve body 1, and the square box structure is provided with four air ports symmetrically around the valve body 1; Four dividing plates 2 are provided with respectively in the valve body 1; Valve shaft 3, bottom are inserted in the valve body 1, are movably connected on valve body 1, and the valve body upper-end surface is stretched out in valve shaft 3 upper ends; Rotary valve plate 4 is positioned at valve body 1, is connected in valve shaft 3; Dividing plate 2 in rotary valve plate 4 outer rims and the valve body 1 cooperates; Pneumatic actuator 5 is connected in valve shaft 3 upper ends; Described valve shaft 3 departs from valve body 1 center line setting.
In an embodiment, described rotary valve plate 4 rounded shapes, correspondence has semi-circular through hole on each dividing plate 2, with rotary valve plate 4 couplings.
Linear sealing between rotary valve plate 4 and the dividing plate 2 is to realize by 0 RunddichtringO 6 that is embedded on rotary valve plate 4 outer rims.
Because valve shaft 4 is the eccentric structure, not on center line, the sectional area of the semi-circular through hole on two dividing plates 2 that cause sealing with rotary valve plate 4 common realization commutations varies in size, and is promptly bigger near half hole sectional area on the dividing plate 2 of valve shaft 4.Semi-circular through-hole side (top of Fig. 2) that can sectional area is less in the use is used for the cool air that flows, the hot flue gas of the mobile expanded by heating of the semi-circular through-hole side that sectional area is bigger (below of Fig. 2).Can make air-flow obtain best distribution like this, reduce the drag losses of fume side.
Working procedure is as follows:
Two air ports of four-way change-over valve are connected with induced draught fan with blower respectively, and other two air ports are connected with two burners of A, B respectively.
In the work when rotary valve plate 4 is positioned at a side position, cool air is blown to A side burner by four-way change-over valve, cool air enters the stove internal combustion after being heated by heat retainer, the high Warm flue gas of stove Inner this moment is got rid of by induced draught fan through four-way change-over valve by B side burner, and high-temperature flue gas heats the heat retainer in the B side burner therebetween.When pneumatic actuator 5 drive valve shafts 4 arrive rotary valve plate 4 half-twists in another Side position, cool air is then blown to B side burner by four-way change-over valve, cool air enters the stove internal combustion after being heated by the heat retainer of B side burner Inner, this moment, the furnace high-temperature flue gas was got rid of by induced draught fan through four-way change-over valve by A side burner, and high-temperature flue gas is with the heat retainer heating of A side burner Inner therebetween. and its work moves so repeatedly.
Claims (3)
1. four-way change-over valve comprises,
Valve body, the square box structure is provided with four air ports symmetrically around the valve body;
Four dividing plates are separately positioned in the valve body;
Valve shaft, bottom are inserted in the valve body, are movably connected on valve body, and the valve body upper-end surface is stretched out in the valve shaft upper end;
Rotary valve plate is positioned at valve body, is connected in valve shaft; Dividing plate in rotary valve plate outer rim and the valve body cooperates;
Pneumatic actuator is connected in the valve shaft upper end; It is characterized in that,
Described valve shaft departs from the setting of valve body center line.
2. four-way change-over valve as claimed in claim 1 is characterized in that, the rounded shape of described rotary valve plate, and correspondence has semi-circular through hole on each dividing plate, mates with rotary valve plate.
3. as claim l or 2 described four-way change-over valves, it is characterized in that, stud with the O RunddichtringO on the outer rim of described rotary valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206333570U CN201875202U (en) | 2010-11-30 | 2010-11-30 | Four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206333570U CN201875202U (en) | 2010-11-30 | 2010-11-30 | Four-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875202U true CN201875202U (en) | 2011-06-22 |
Family
ID=44163119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206333570U Expired - Fee Related CN201875202U (en) | 2010-11-30 | 2010-11-30 | Four-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875202U (en) |
Cited By (2)
| 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 |
| CN105559996A (en) * | 2014-10-16 | 2016-05-11 | 唐德工业股份有限公司 | CPR (cardiopulmonary resuscitation) active air extraction apparatus of air bed |
-
2010
- 2010-11-30 CN CN2010206333570U patent/CN201875202U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN105559996A (en) * | 2014-10-16 | 2016-05-11 | 唐德工业股份有限公司 | CPR (cardiopulmonary resuscitation) active air extraction apparatus of air bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |