CN206600495U - The three of a kind of band purging function close four-way reversing valve - Google Patents

Abstract

Four-way reversing valve is closed the utility model discloses the three of a kind of band purging function, including valve body, valve plate, valve rod and drive device, bottom is provided with lower chambers in valve body, it is provided with top with vertical dividing plate mutually isolated left chamber, middle chamber and right chamber room, diaphragm plate is provided between lower chambers and left chamber, middle chamber and right chamber room, through hole corresponding with left chamber, middle chamber and right chamber room is provided with diaphragm plate, valve seat is provided with through hole；Drive device is housed in the top of left chamber, middle chamber and right chamber room, the bottom of drive device is connected by valve rod with valve plate, and valve plate is corresponding with the valve seat, one end of valve rod is provided with bulb and pin, and bulb is connected with the ball cup on valve plate；The lower port communicated with outside valve body, left port, middle port and right port are respectively equipped with lower chambers, left chamber, middle chamber and right chamber room.The present apparatus efficiently solves substantial amounts of residual combustion gases in regenerator and directly taken away, the problems such as causing significant wastage and the environmental pollution of combustion gas.

Description

The three of a kind of band purging function close four-way reversing valve

Technical field

The utility model is related to a kind of reversal valve, more particularly to a kind of band purges the three of function and closes four-way reversing valves, mainly Commutation for heat-accumulating industrial furnace kiln air, coal gas and flue gas system.

Background technology

The valve for being presently used for heat-accumulating industrial furnace kiln air, coal gas and flue gas system commutation is four-way valve or three mostly Port valve, heat storage uses ceramic bead or honeycomb ceramics, and during using honeycomb ceramics, the general aperture of honeycomb ceramics is smaller, is not suitable with flue gas Dustiness is larger and adhesive occasion, such as glass furnace, a molten point of stove.It is general larger using aperture under above-mentioned occasion Honeycomb ceramics (checker brick), in this case, regenerator is huger.The double-preheating system of preheating, commutation are also needed as combustion gas During, substantial amounts of residual combustion gases will directly be taken away in regenerator, the significant wastage and environment of combustion gas can be caused dirty, it would be highly desirable to need Improve.

Utility model content

The utility model provides a kind of three pass four-way reversing valves of band purging function, to solve the accumulation of heat of prior art presence Substantial amounts of residual combustion gases will directly be taken away in room, the problem of causing significant wastage and the environmental pollution of combustion gas.

According to one embodiment of utility model, the three of the band purging function closes four-way reversing valve, including valve body, valve Plate, valve rod and drive device；Wherein, bottom is provided with lower chambers in the valve body, is provided with mutually isolated with vertical dividing plate on top Left chamber, middle chamber and right chamber room, are provided with diaphragm plate, in institute between the lower chambers and left chamber, middle chamber and right chamber room Diaphragm plate is stated provided with through hole corresponding with left chamber, middle chamber and right chamber room, valve seat is provided with the through hole；On the left side The top of chamber, middle chamber and right chamber room is respectively arranged with drive device, and the bottom of the drive device passes through valve rod and valve plate Connection, the valve plate is corresponding with the valve seat, and one end of the valve rod is provided with bulb and slightly, on the bulb and the valve plate Ball cup is connected；Be respectively equipped with the lower chambers, left chamber, middle chamber and right chamber room communicated with outside valve body lower port, Left port, middle port and right port.

Further, the three of the band purging function close four-way reversing valve also with any one in following additional technical feature Plant or a variety of：

In some embodiments of the present utility model, the drive device includes the one of magnetic valve and cylinder or hydraulic cylinder Kind.

In some embodiments of the present utility model, the drive device is connected with the valve rod by universal joint.

In some embodiments of the present utility model, the valve rod is supported by body, and valve stem slides are ordinatedly located at body It is interior, the top connection of the body and valve body.

In some embodiments of the present utility model, in the body built with stem guiding bearing.

In some embodiments of the present utility model, the connection of the valve plate and valve rod is connected using the ball pivot with the free degree Connect.

In some embodiments of the present utility model, one of described left chamber, middle chamber and right chamber room are used as purging chamber Room.

In some embodiments of the present utility model, described lower port, left port, the bore of middle port or right port For：DN300~900mm；Depending on the bore of four ports is as needed, it may be the same or different.

Major advantage of the present utility model includes：Cylinder uses the catcher with universal characteristic to be attached with valve rod, vapour Cylinder piston rod is not influenceed by radial load, to extend the life-span of cylinder and sealing ring；Valve plate uses the ball pivot with bulb with valve rod Connection, makes valve plate reliably be fitted with valve seat, sealed reliable；Due to purging function, can largely reduce combustion gas and waste and to ring The pollution in border.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model one embodiment.

Marked in figure：1st, valve body, 2, valve seat, 3, valve plate, 4, ball cup, 5, pin, 6, bulb, 7, valve rod, 8, guide bearing, 9th, body, 10, cylinder saddle, 11, universal joint, 12, cylinder, 13, vertical dividing plate, 14, diaphragm plate, 15, left chamber, 16, middle chamber, 17th, right chamber room, 18, lower chambers, A, left side port (fuel gas inlet), B, middle port (purging chamber), the C, (smoke evacuation of the right port Mouthful), D, lower port.

Embodiment

Referring to Fig. 1, the three of a kind of band purging function of the utility model closes four-way reversing valve, including valve body 1, valve plate 3, valve rod 7 and drive device, the drive device of the embodiment uses cylinder 12.Bottom is provided with lower chambers 18 in the valve body 1, is set on top The mutually isolated left chamber 15 of useful vertical dividing plate 13, middle chamber 16 and right chamber room 17, the lower chambers 18 and left chamber 15, in Diaphragm plate 14 is provided between chamber 16 and right chamber room 17, is provided with and left chamber 15, middle chamber 16 and the right side on the diaphragm plate 14 The corresponding through hole of chamber 17, is provided with valve seat 2 on the through hole；Top in the left chamber 15, middle chamber 16 and right chamber room 17 Cylinder 12 is installed in end by cylinder saddle 10 above, and the piston rod of the bottom of the cylinder 12 passes through valve rod 7 and following valve Plate 3 is connected, and the valve plate 3 is corresponding with the valve seat 2；The lower end of the valve rod 7 is provided with bulb 6 and pin 5, the bulb 6 and the valve Ball cup 4 on plate 3 is connected.Connected between the piston rod and valve rod 7 of the cylinder 12 by universal joint 11.In the lower chambers 18th, left chamber 15, middle chamber 16 and right chamber room 17 be respectively equipped with the lower port D communicated with the outside of valve body 1, left side port A, in Between port B and the right port C.

The drive device, which may also be hydraulic cylinder or other, has the device of identical function.

The valve rod 7 is supported by body 9, and valve rod 7 is located in body 9 with being slidably matched, the top of the body 9 and valve body 1 Connection.Can be in the body 9 built with stem guiding bearing (not shown).

The connection of the valve plate 3 and valve rod 7 uses ball pivot (carrying bulb 6) connection with the free degree.

One of described left chamber 15, middle chamber 16 and right chamber room 17 are used as purging chamber.

Described lower port D, left side port A, middle port B and the right port C bore are：DN300~900mm；Four Depending on the bore of individual port is as needed, identical can also it differ.

The operation principle of specific embodiment is：

As shown in figure 1, the utility model uses vertical structure, four-way (chamber), is driven using air pressure altogether.Top left Port A, middle port B and tri- ports of the right port C, one is fuel gas inlet, and another port is exhanst gas outlet, and the 3rd leads to For purge gas entrance, (this valve can use flue gas or other inert gases, three ports and left chamber 15, lumen on top to mouth Room 16, right chamber room 17 can arbitrarily exchange and use), lower port D connects burner regenerator.Valve plate 3 uses flat seal with valve seat 2, has There is certain sealing compensation performance, valve plate 3 is relatively connected with valve rod 7 using the ball with bulb 6, can automatic capturing, sealed reliable.Valve Plate is driven by cylinder 12, and by solenoid valve control gas circuit.

Combustion gas enters left chamber 15 from the fuel gas inlet A on top, and now the chamber valve plate is opened, and other valve plates are closed, combustion gas Enter regenerator from lower port D by valve seat orifice, then to hearth combustion.After commutation instruction is provided, the valve plate of left chamber 15 is closed, Obtain closing after signal in place, the valve plate of middle chamber 16 is opened, and purge gas is purged to regenerator, i.e., will be residual in regenerator Remaining combustion gas is blown into burner hearth and burnt away.After by certain time, purging is finished, the valve plate of middle chamber 16 is closed, and is similarly obtained this Valve plate is closed after signal in place, and the valve plate of right chamber room 17 is opened, and performs smoke evacuation program.After smoke evacuation process is finished, the right chamber is closed The valve plate of room 17, and provide valve plate in-position signal, you can perform next cycle action.

Each valve plate 3 is acted to be detected by two position detecting switch, above one be that open position is detected, below one be Off-position is detected.After valve plate 3 is operating normally in place, signal is sent by detection switch, any one is dynamic in commutation for two detection switch As instruction provide after can't provide signal in place within 3~5 seconds when, system sends alarm, and expression is faulty, should exclude in time.It is whole When individual reversal valve commutates is determined by whole combustion system calls, can be controlled passage time, can be also controlled by temperature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff can be carried out the feature of the not be the same as Example described in this specification or example and non-be the same as Example or example With reference to and combination.

It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should It is defined by the protection domain of claims.

Claims (8)

1. the three of a kind of band purging function close four-way reversing valve, including valve body, valve plate, valve rod and drive device, it is characterised in that Bottom is provided with lower chambers in the valve body, and left chamber, middle chamber and the right chamber room mutually isolated with dividing plate is found is provided with top, Between the lower chambers and left chamber, middle chamber and right chamber room be provided with diaphragm plate, on the diaphragm plate be provided with left chamber, in The corresponding through hole of chamber and right chamber room, is provided with valve seat on the through hole；On the top of the left chamber, middle chamber and right chamber room Drive device is respectively arranged with above, the bottom of the drive device is connected by valve rod with valve plate, the valve plate and the valve seat pair Should, one end of the valve rod is provided with bulb and slightly, and the bulb is connected with the ball cup on the valve plate；The lower chambers, Left chamber, middle chamber and right chamber room are respectively equipped with the lower port communicated with outside valve body, left port, middle port and right port.

2. the three of band purging function according to claim 1 close four-way reversing valve, it is characterised in that the drive device bag Include one kind of magnetic valve and cylinder or hydraulic cylinder.

3. the three of band purging function according to claim 1 or 2 close four-way reversing valve, it is characterised in that the driving dress Put and be connected with the valve rod by universal joint.

4. the three of band purging function according to claim 3 close four-way reversing valve, it is characterised in that the valve rod is by body Support, valve stem slides are ordinatedly located at set in vivo, the top connection of the body and valve body.

5. the three of band purging function according to claim 4 close four-way reversing valve, it is characterised in that built-in in the body There is stem guiding bearing.

6. the three of band purging function according to claim 1 close four-way reversing valve, it is characterised in that the valve plate and valve rod Connection using with the free degree ball pivot connect.

7. the three of band according to claim 1 purging function close four-way reversing valves, it is characterised in that described left chamber, One of middle chamber and right chamber room are used as purging chamber.

8. the three of band according to claim 1 purging function close four-way reversing valves, it is characterised in that described lower port, The bore of left port, middle port and right port is：DN400~900mm.