Rotary four-way change-over valve
Technical field: the present invention relates to a kind of rotary four-way change-over valve that can change locking system and device interior water (flow) direction, reach the backwash purpose.
Technical background: in process systems such as heat supply, air-conditioning, refrigeration, chemical industry and municipal water supply and sewerage pipeline, water often flows to a locking system or the equipment of flowing out.Owing to have foreign material in the water, when water temperature is higher, therefore the inner also easy fouling of system or equipment, behind the system or equipment long-play, will be choked with filth in system or equipment or fouling.The existence of dirt and dirt, this has not only increased the circulation resistance of system and equipment, increases the energy consumption of water pump, and for heat transmission equipment, has also increased the heat exchanger fouling thermal resistance, influences heat-transfer effect.Backwash is the method for dirt in a kind of effective rinse-system and the equipment, but conventional back-flushing method need increase backwashing pump, has increased the investment of equipment undoubtedly.Therefore, invent a kind of simple in structure, cost of investment is low, the commutating device that can change the direction of a stream of water easily is that actual application value is arranged very much.
Summary of the invention: the purpose of this invention is to provide a kind of rotary four-way change-over valve that can change locking system and device interior water (flow) direction, reach the backwash purpose.
Above-mentioned purpose is achieved through the following technical solutions:
Rotary four-way change-over valve, its composition comprises: housing, described housing left end is equipped with first member plate, upper connecting tube and lower linking tube are housed respectively on the described first member plate, described housing right-hand member is equipped with right end plate, is provided with couple axle in the described housing, on the described couple axle stuffing box bearing is housed, on the described stuffing box bearing external diameter left valve block, right valve block and rotary valve plate are housed, the other end of described couple axle is connected with stepping motor.
Above-mentioned rotary four-way change-over valve, have horizontal partition and four quiet valve openings on the described left valve block, described horizontal partition is divided into two groups up and down with quiet valve opening, have vertical partition and four quiet valve openings on the described right valve block, about described vertical partition is divided into quiet valve opening two groups, quiet valve opening on the described left valve block and the quiet valve opening on the right valve block are over against installation.
Above-mentioned rotary four-way change-over valve has the rotation valve opening on the described rotary valve plate.
Above-mentioned rotary four-way change-over valve, described rotary valve plate are positioned in the middle of left valve block and the right valve block, and described rotary valve plate closely contacts with left and right sides valve block, and the three constitutes the flow channel reverser.
Above-mentioned rotary four-way change-over valve constitutes flow inlet chamber, right side and water export chamber, right side between described right end plate and the right valve block, the two is separated by the vertical partition on the right valve block.
Above-mentioned rotary four-way change-over valve has entrance and exit on the described right end plate.
Above-mentioned rotary four-way change-over valve, described stepping motor can be replaced by manual turning handle.
This technological scheme has following beneficial effect:
1. the rotary valve plate among the present invention is positioned in the middle of left valve block and the right valve block, and rotary valve plate closely contacts with left and right sides valve block, prevents the current Radial Flow, and rotary valve plate is by the stepper motor driven rotary.
2. the left valve block among the present invention, rotary valve plate and right valve block constitute the flow channel reverser, when communicating for 2 in 4 quiet valve openings on 2 on the rotary valve plate rotations valve openings and the left and right sides valve blocks, just constitute the flow channel of an one-in-and-one-out, this moment, water entered locking system or equipment (supposing that the flow direction in system or equipment this moment flows to for normal operation) through rotary four-way change-over valve; Rotate rotary valve plate, i.e. can regulate flow channel circulation area is regulated the size of water flow; When rotary valve plate turned over 90 ° of angles, then 2 the quiet valve openings in addition on 2 on rotary valve plate rotation valve opening and the left and right sides valve block communicated and constitute new flow channel, and this moment, current just in time were in reverse flow at system or equipment, thus the purpose of realization back flush.
3. the present invention utilizes stepping motor driven rotary valve block, and regulating and controlling is convenient, both can change the water (flow) direction in the system or equipment, and the size of can regulate water flow again has the effect of flow control valve.
4. the present invention utilizes left and right sides end plate, left and right sides valve block and rotary valve plate, has realized liquid four-way commutation adjustment process, and is simple in structure, is convenient to realize and control.
5. the present invention adopts measure such as seal between stuffing box bearing, rotary valve plate and the left and right sides valve block, can prevent the leakage and the Radial Flow of liquid.
6. the present invention can be connected with equipment with systems such as heat supply, air-conditioning, refrigeration, chemical industry and municipal plumbing, realizes the backwash process of said system and equipment, reaches the purpose of dirt in scavenge system and the equipment.
7. 1., 2., 3. and 4. be respectively the valve opening numbering of each valve block among the figure.
8. the present invention is installed between locking system (equipment) and the recycle pump, the control step motor rotates rotary valve plate, changes the passage of current turnover rotary four-way change-over valve, thereby realize the change of current water (flow) direction in system or equipment, reach the purpose of backwash.The present invention can be widely used in heat supply, air-conditioning, refrigeration, chemical industry and the municipal water supply and sewerage pipeline engineering.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is left views of accompanying drawing 1.
Accompanying drawing 3 is right elevations of accompanying drawing 1.
Accompanying drawing 4 is structural representations of left valve block.
Accompanying drawing 5 is structural representations of rotary valve plate.
Accompanying drawing 6 is structural representations of right valve block.
Accompanying drawing 7 is that this product is connected the forward circulation structural representation with equipment.
Accompanying drawing 8 is position views of this product time left side valve block that is connected forward circulation with equipment.
Accompanying drawing 9 is position views of this product rotary valve plate when being connected forward circulation with equipment.
Accompanying drawing 10 is position views of this product right valve block when being connected forward circulation with equipment.
Accompanying drawing 11 is that this product is connected the recycled back structural representation with equipment.
Accompanying drawing 12 is position views of this product time left side valve block that is connected recycled back with equipment.
Accompanying drawing 13 is position views of this product rotary valve plate when being connected recycled back with equipment.
Accompanying drawing 14 is position views of this product right valve block when being connected recycled back with equipment.
Embodiment:
Embodiment 1:
Rotary four-way change-over valve, its composition comprises: housing 6, described housing 6 left ends are equipped with first member plate 7, upper connecting tube 12 and lower linking tube 13 are housed respectively on the described first member plate 7, described housing 6 right-hand members are equipped with right end plate 8, are provided with couple axle 16 in the described housing 6, on the described couple axle 16 stuffing box bearing 5 are housed, on described stuffing box bearing 5 external diameters left valve block 2, right valve block 3 and rotary valve plate 4 are housed, the other end of described couple axle 16 is connected with stepping motor 1.
Embodiment 2:
Above-mentioned rotary four-way change-over valve, have horizontal partition 11 and four quiet valve openings 9 on the described left valve block 2, described horizontal partition is divided into two groups up and down with quiet valve opening 9, have vertical partition 11 and four quiet valve openings 9 on the described right valve block, about described vertical partition 11 is divided into quiet valve opening 9 two groups, quiet valve opening on the described left valve block and the quiet valve opening on the right valve block are over against installation.
Embodiment 3:
Above-mentioned rotary four-way change-over valve has rotation valve opening 10 on the described rotary valve plate 4.
Embodiment 4:
Above-mentioned rotary four-way change-over valve, described rotary valve plate 4 is positioned in the middle of left valve block 2 and the right valve block 3, described rotary valve plate 4 closely contacts with left and right sides valve block, the three constitutes the flow channel reverser, when communicating for 2 in 4 quiet valve openings on 2 valve openings on the rotary valve plate 4 and the left and right sides valve block, just constitute the flow channel of an one-in-and-one-out, rotate rotary valve plate, it is can regulate flow channel circulation area, when rotary valve plate turned over 90 ° of angles, then 2 the quiet valve openings in addition on 2 valve openings on the rotary valve plate and the left and right sides valve block constituted new flow channel again.
Embodiment 5:
Above-mentioned rotary four-way change-over valve constitutes flow inlet chamber, right side 17 and water export chamber, right side 18 between described right end plate 8 and the right valve block 3, the two is separated by the vertical partition 11 on the right valve block.
Embodiment 6:
Above-mentioned rotary four-way change-over valve has inlet 14 and outlet 15 on the described right end plate 8.
Embodiment 7:
Above-mentioned rotary four-way change-over valve, described stepping motor 1 can be replaced by manual turning handle, realizes manually control.
Embodiment 8:
Above-mentioned rotary four-way change-over valve, described first member plate 7 and on it between lower linking tube, adopt welding or cast inblock to realize between right end plate 8 and its gateway.
Embodiment 9:
Above-mentioned rotary four-way change-over valve adopts welding or cast inblock to realize between described left and right sides valve block and its partition.
Embodiment 10:
Above-mentioned rotary four-way change-over valve, 4 quiet valve openings 9 on the valve block of the described left and right sides evenly distribute on whole valve block, and angle is equal each other for it.
Embodiment 11:
Above-mentioned rotary four-way change-over valve, the rotation valve opening 10 on the described rotary valve plate 4 are symmetry with the center of circle, and rotation valve opening 10 sizes and 4 quiet valve opening 9 sizes on the valve block of the left and right sides equate.
Embodiment 12:
Above-mentioned rotary four-way change-over valve, described rotary valve plate 4 is driven by stuffing box bearing 5 by stepping motor 1.
Working procedure is described:
Above-mentioned rotary four-way change-over valve, being connected forward and reverse circulation with certain equipment with rotary four-way change-over valve is example:
Rotary four-way change-over valve is connected the forward circulation working procedure with certain equipment: rotary valve plate 4 is rotated to position in the accompanying drawing 9, at this moment, the rotation valve opening 1. and 2. respectively with left and right sides valve block on quiet valve opening 1. with 3. over against being communicated with, cut off and 2. and 4. the quiet valve opening on the valve block of the left and right sides is rotated valve block 4, so just form following forward circulation flow channel: the quiet valve opening of the inlet of right end plate 8 → right valve block 3 1. → the rotation valve opening of rotary valve plate 4 1. → the quiet valve opening of left valve block 2 1. → the quiet valve opening of the lower linking tube → left valve block 2 of upper connecting tube → equipment (the counterclockwise) → first member plate 7 of first member plate 7 3. → the rotation valve opening of rotary valve plate 4 2. → the quiet valve opening of right valve block 3 3. → outlet of right end plate 8.
Rotary four-way change-over valve is connected recycled back (backwash) working procedure with certain equipment: rotary valve plate 4 is rotated to position in the accompanying drawing 13, at this moment, the rotation valve opening 1. and 2. respectively with left and right sides valve block on quiet valve opening 2. with 4. over against being communicated with, cut off and 1. and 3. the quiet valve opening on the valve block of the left and right sides is rotated valve block 4, so just form following recycled back flow channel: the quiet valve opening of the inlet of right end plate 8 → right valve block 3 2. → the rotation valve opening of rotary valve plate 4 1. → the quiet valve opening of left valve block 2 2. → the quiet valve opening of the upper connecting tube → left valve block 2 of lower linking tube → equipment (the clockwise direction) → first member plate 7 of first member plate 7 4. → the rotation valve opening of rotary valve plate 4 2. → the quiet valve opening of right valve block 3 4. → outlet of right end plate 8.
In above-mentioned commutation working procedure, the entrance and exit of rotary four-way change-over valve constant (promptly constant), and water (flow) direction change in lower linking tube, the equipment on the first member plate 7 with being connected of external recycle pump.
Above-mentioned backwash working procedure can or be about at just start-up system or equipment carry out the backwash process before and after realization system and equipment normally move in shutdown system or the equipment.
Above-mentioned backwash working procedure can realize manually that also its working procedure is identical.