CN105221386B - It is a kind of for conveying the low pressure recycle pumping system of coating - Google Patents
It is a kind of for conveying the low pressure recycle pumping system of coating Download PDFInfo
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- CN105221386B CN105221386B CN201510627989.3A CN201510627989A CN105221386B CN 105221386 B CN105221386 B CN 105221386B CN 201510627989 A CN201510627989 A CN 201510627989A CN 105221386 B CN105221386 B CN 105221386B
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- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 238000005086 pumping Methods 0.000 title claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 3
- 241000233855 Orchidaceae Species 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention is a kind of for conveying the low pressure recycle pumping system of coating, including circulating pump, circulation pipe, circulating pump includes the pump housing and motor, feed controller is installed on the left of the pump housing, feed controller includes driving motor, worm screw, connecting rod and circular piston, connecting rod is equipped with worm gear, and worm and wheel is intermeshed, and is connected with circular piston on connecting rod；Aspiration pump is installed on the right side of the pump housing；Electronic box is installed in the pump housing, transformer and pause switch are installed in electronic box, the first parallel branch and the second parallel branch are connected on transformer, driving motor is connected in the first parallel branch, aspiration pump and pause switch are connected in the second parallel branch；The circulation pipe of discharge port is equipped with pressure maintaining valve and check valve.The present invention increases exhaust apparatus in circulating pump, so that forming environment under low pressure in circulating pump, has dramatically speeded up the delivery rate of coating, improves the working efficiency of circulating pump, promotes product competitiveness, and do not easily cause circulating pump to block.
Description
Technical field
The present invention relates to circulating pumps, more particularly, to a kind of for conveying the low pressure recycle pumping system of coating.
Background technique
Circulating pump refers to conveying reaction in device, absorbs, separates, the circulation fluid of regeneration of absorption solution pump.Generally use single-stage
Centrifugal pump.The flow median size of circulating pump, in a steady working condition, the changes in flow rate of pump is smaller.Its lift is small low,
It is used only to overcome the pressure drop of the circulatory system.Low-lift pump can be used.For circulating pump refers to the effect of pump, centrifugal pump refers to
For the structure of pump, the two is entirely two concepts.Circulation fluid is recycled pump used, example by the working principle of circulating pump
As the hot water in heating pipeline gets up by circulation pump circulation.
Coating, in the entitled paint of Chinese tradition.So-called coating be coated in the body surface being protected or decorated, and
The continuous film of firm attachment can be formed with coated article, usually based on resin or oil or lotion, add or do not add face
Material, filler add corresponding additive, the thick liquid being formulated with organic solvent or water.Since coating is thick liquid, use
Recycling pump circulation coating, the effect is unsatisfactory, and circulation rate is excessively slow, and when coating stays in circulating pump for a long time, coating is easily solidifying
It ties and circulating pump is caused to block.
Summary of the invention
The purpose of the present invention is to provide a kind of for conveying the low pressure recycle pumping system of coating, increases row in circulating pump
Device of air, so that environment under low pressure is formed in circulating pump, thus inside and external formation pressure difference in circulating pump, under pressure difference help
The delivery rate for having dramatically speeded up coating improves the working efficiency of circulating pump, promotes product competitiveness, and do not easily cause circulation
Pump blocking.
In order to solve the above-mentioned technical problem, it adopts the following technical scheme that
It is a kind of for conveying the low pressure recycle pumping system of coating, including circulating pump, circulation pipe, circulating pump includes the pump housing and electricity
Machine, the pump housing are equipped with pump head, and the two sides of pump head are equipped with feed inlet and discharge port, are respectively connected with circulation on feed inlet and discharge port
Pipe, it is characterised in that: feed controller is equipped on the left of the pump housing, feed controller includes driving motor, worm screw, connecting rod and circle
Shape piston is connected with transmission device, transmission device connecting worm on driving motor, and connecting rod is located in pump head, and connecting rod is equipped with snail
Wheel, worm and wheel are intermeshed, and are connected with circular piston on connecting rod, circular piston is mutually matched with feed inlet；The right side of the pump housing
Side is equipped with aspiration pump, and aspiration pump and pump head are interconnected；Electronic box is installed in the pump housing, transformer and interval are installed in electronic box
It switchs, is connected with the first parallel branch and the second parallel branch on transformer, is connected with driving motor in the first parallel branch, the
Aspiration pump and pause switch are connected in two parallel branches；The circulation pipe of discharge port is equipped with pressure maintaining valve and check valve.
Further, flange is connected between the pump housing and motor, flange includes upper flange and lower flange, upper flange connection electricity
Machine, lower flange connect the pump housing, are equipped with screw hole on upper flange and lower flange, bolt are connected in screw hole, on being bolted
Flange and lower flange.The pump housing and motor are connect with lower flange by upper flange, sealing effect is good, be connected firmly, and motor with
The pump housing is separable, is convenient for changing and daily maintenance.
Further, it is connected with output shaft on driving motor, shaft coupling, shaft coupling connection transmission dress are connected on output shaft
It sets.The output mechanical energy of output shaft transmitting driving motor, shaft coupling buffering, vibration damping and the shafting dynamic property for improving output shaft,
Reduce the probability that failure occurs.
Further, transmission device includes eccentric ratio and output gear, and one end of eccentric ratio is connected with shaft coupling, eccentric
The other end of connecting rod connects output gear, output gear connecting worm.Transmission device is for transmitting mechanical energy, to drive worm screw
Rotation, of simple structure and strong practicability.
Further, exhaust tube and exhaust pipe are connected on aspiration pump, exhaust tube and pump head are interconnected.Exhaust tube is for taking out
Gas, exhaust pipe is for being vented, to form environment under low pressure in pump head, structure is simple.
Further, the upper end of pressure maintaining valve is equipped with pressure stabilizing valve body, is equipped with air inlet and gas outlet, air inlet position in pressure maintaining valve body
In the right side of pressure stabilizing valve body, negative pressure spool is equipped at air inlet, negative pressure spool is flexibly connected with the inner wall of pressure stabilizing valve body, negative pressure valve
The inner wall of core and pressure stabilizing valve body is formed with first through hole, and first through hole and air inlet cooperate；Gas outlet is located at pressure stabilizing valve body
Left side, positive pressure spool is equipped at gas outlet, positive pressure spool is flexibly connected with the inner wall of pressure stabilizing valve body, and positive pressure spool is equipped with the
Two through-holes, the second through-hole and gas outlet cooperate.Pressure maintaining valve is used to control the circulation pipe air pressure of discharge port, when in the circulation pipe
Air pressure when being lower than design requirement air pressure, outside air squeezes negative pressure spool, and negative pressure spool inwardly moves, air inlet open, outside
Boundary's air enters pressure maintaining valve from air inlet, first through hole, and then enters in the circulation pipe, the air pressure in the circulation pipe rise until
Reach design requirement air pressure；When the air pressure in the circulation pipe is higher than design requirement air pressure, inner air squeezes positive pressure spool, promotees
Move out positive pressure spool, gas outlet is opened, and inner air runs out of pressure maintaining valve from the second through-hole, gas outlet, in the circulation pipe
Air pressure decline until reach design requirement air pressure.Pressure maintaining valve realizes pressure stabilization function, and smart structural design, voltage regulation result is good,
Environment under low pressure can be kept for a long time, be obviously improved the working efficiency of low-pressure delivery coating.
Further, air inlet goes out to be equipped with negative pressure closure, and negative pressure is blocked is equipped with the first sealing ring between negative pressure spool.Negative pressure
Closure prevents pressure maintaining valve gas leakage, and the first sealing ring sealing effect is good, further prevents pressure maintaining valve gas leakage.
Further, be connected with mobile plate on positive pressure spool, mobile plate is movably connected on gas outlet, mobile plate with
The second sealing ring is equipped between positive pressure spool.Mobile plate limits the moving range of positive pressure spool, the second sealing ring sealing effect
Well, pressure maintaining valve gas leakage is prevented.
Further, relay is installed in electronic box, relay connects transformer, and relay connects the first parallel branch, after
Electric appliance connects the second parallel branch.Relay protection circuit avoids the faults such as short circuit.
As a result of the above technical solution, the following beneficial effects are obtained:
The present invention be it is a kind of for conveying the low pressure recycle pumping system of coating, increase exhaust apparatus in circulating pump so that
Environment under low pressure is formed in circulating pump, so that inside and external formation pressure difference in circulating pump, dramatically speed up under pressure difference help
The delivery rate of coating improves the working efficiency of circulating pump, promotes product competitiveness, and do not easily cause circulating pump to block.Its
Specific beneficial effect shows as the following:
1, pressure maintaining valve is used to control the circulation pipe air pressure of discharge port, when the air pressure in the circulation pipe is lower than design requirement air pressure
When, outside air squeezes negative pressure spool, and negative pressure spool inwardly moves, air inlet open, and outside air is from air inlet, first through hole
Into pressure maintaining valve, and then enter in the circulation pipe, the air pressure in the circulation pipe rises until reaching design requirement air pressure；When this is followed
When air pressure in endless tube is higher than design requirement air pressure, inner air squeezes positive pressure spool, promotes positive pressure spool to move out, outlet
Mouth is opened, and inner air runs out of pressure maintaining valve from the second through-hole, gas outlet, and the air pressure decline in the circulation pipe is wanted until reaching design
Ask air pressure.Pressure maintaining valve realizes pressure stabilization function, and smart structural design, voltage regulation result is good, can keep environment under low pressure for a long time, significantly
Promote the working efficiency of low-pressure delivery coating.
2, feed controller drives connecting rod to move horizontally by drive motor, and then circular piston is driven to move horizontally, when
When circular piston moves right, circular piston blocks feed inlet, and the partial air in pump head is taken away in aspiration pump work, to be formed
Environment under low pressure.Meanwhile there is opposite hyperbar in the circulation pipe of feed inlet, pressure difference is formed with pump head.When circular piston to the left
Feed inlet is opened when mobile, and coating is delivered as quickly under the action of pressure difference.Design feature based on feed controller simultaneously,
Coating in batches, it is regular conveyed, effectively prevent circulating pump system to block.
3, aspiration pump is used to extract the air pressure in pump head out, to make to form environment under low pressure in pump head, structure is simple, practicability
By force, cheap.
4, transformer reduces operating voltage and avoids so that voltage swing meets the work requirements of driving motor and aspiration pump
Operating voltage is excessive and damages driving motor and aspiration pump, protects driving motor and aspiration pump, prolongs its service life.
5, pause switch controls aspiration pump discontinuous operation, when suitably reducing work under the premise of ensuring its working effect
Between, to reduce job costs.
6, check valve prevents paint return, and structure is simple.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is a kind of structural schematic diagram of the low pressure recycle pumping system with d in conveying coating of the present invention；
Fig. 2 is the structural schematic diagram of circulating pump in the present invention；
Fig. 3 is the structural schematic diagram of feed controller in the use of the new type；
Fig. 4 is the structural schematic diagram of pressure maintaining valve in the present invention；
Operation principle schematic diagram when Fig. 5 is negative pressure superpressure in pressure maintaining valve；
Operation principle schematic diagram when Fig. 6 is positive pressure superpressure in pressure maintaining valve；
Fig. 7 is the enlarged diagram in Fig. 4 at I；
Fig. 8 is the enlarged diagram in Fig. 4 at II；
Fig. 9 is working circuit diagram in the present invention.
Wherein in Fig. 9, T1For transformer；C1、C2、C3For capacitor；P1For switch；P2For pause switch；U2For relay；YA1
For driving motor；YA2For aspiration pump.
Specific embodiment
It is as shown in Figures 1 to 9, a kind of for conveying the low pressure recycle pumping system of coating, including circulating pump 1 and circulation pipe 4,
Circulating pump 1 includes the pump housing 3 and motor 2, flange is connected between the pump housing 3 and motor 2, flange includes upper flange 33 and lower flange
34, upper flange 33 connects motor 2, and lower flange 34 connects the pump housing 3, is equipped with screw hole (in figure not on upper flange 33 and lower flange 34
Mark), bolt 35 is connected in screw hole, connects upper flange 33 and lower flange 34 by bolt 35.Pass through upper flange 33 and laxative remedy
Orchid 34 connects the pump housing 3 and motor 2, and sealing effect is good, is connected firmly, and motor 2 and the pump housing 3 are separable, is convenient for changing and day
Often maintenance.
The pump housing 3 is equipped with pump head 5, and the left side of pump head 5 is equipped with feed inlet 6, and the right side of the pump housing 3 is equipped with discharge port 7, feed inlet
6 be equipped with circulation pipe 4 on discharge port 7, coating enters pump head 5 by the circulation pipe 4 of feed inlet 6, then is delivered to following for discharge port 7
Endless tube 4.
The circulation pipe 4 of discharge port 7 is equipped with pressure maintaining valve 8 and check valve 9, and the upper end of pressure maintaining valve 8 is equipped with pressure stabilizing valve body 22, surely
Air inlet 24 and gas outlet 29 are equipped in pressure valve body 22, air inlet 24 is located at the right side of pressure stabilizing valve body 22, is equipped at air inlet 24
Negative pressure spool 23, negative pressure spool 23 are flexibly connected with the inner wall of pressure stabilizing valve body 22, the inner wall of negative pressure spool 23 and pressure stabilizing valve body 22
It is formed with first through hole 31, first through hole 31 and air inlet 24 cooperate.When (i.e. discharge port 7 recycles the air pressure in pressure maintaining valve 8
Air pressure in pipe 4) when being lower than design requirement air pressure, outside air squeezes negative pressure spool 23, so that negative pressure spool 23 moves inward,
Negative pressure spool 23 no longer blocks air inlet 24, and air inlet 24 is opened, and outside air enters pressure stabilizing from air inlet 24, first through hole 31
In valve 8, the air pressure in pressure maintaining valve 8 rises until rising to design requirement air pressure, and negative pressure spool 23 resets at this time, negative pressure spool 23
Air inlet 24, stable gas pressure in pressure maintaining valve 8 are blocked again.Meanwhile air inlet 24 go out be equipped with negative pressure block 25, negative pressure block 25 with
The first sealing ring 26 is equipped between negative pressure spool 23.Negative pressure, which blocks 25, prevents 8 gas leakage of pressure maintaining valve, 26 sealing effect of the first sealing ring
Well, 8 gas leakage of pressure maintaining valve is further prevented.
Gas outlet 29 is located at the left side of pressure stabilizing valve body 22, is equipped with positive pressure spool 27 at gas outlet 29, positive pressure spool 27 and steady
The inner wall of pressure valve body 22 is flexibly connected, and positive pressure spool 27 is equipped with the second through-hole 28, the second through-hole 28 and 29 phase interworking of gas outlet
It closes.When the air pressure in the circulation pipe 4 is higher than design requirement air pressure, inner air squeezes positive pressure spool 27, promotes positive pressure spool
27 move out, and gas outlet 29 is opened, and inner air runs out of pressure maintaining valve 8 from the second through-hole 28, gas outlet 29, in the pressure maintaining valve 8
Air pressure decline until reach design requirement air pressure, positive pressure spool 27 resets at this time, and gas outlet 29 is closed, air pressure in pressure maintaining valve 8
Stablize.Pressure maintaining valve 8 realizes pressure stabilization function, and smart structural design, voltage regulation result is good, can keep environment under low pressure for a long time, significantly
Promote the working efficiency of low-pressure delivery coating.Meanwhile mobile plate 30 is connected on positive pressure spool 27, mobile 30 activity of plate is even
It is connected on gas outlet 29, is equipped with the second sealing ring 32 between mobile plate 30 and positive pressure spool 27.Mobile plate 30 limits positive pressure
The moving range of spool 27,32 sealing effect of the second sealing ring is good, prevents 8 gas leakage of pressure maintaining valve.
Check valve 9 is one-way conduction valve body, forces coating that can only be conveyed by feed inlet 6 beyond 7 direction of material mouth, prevents coating
It flows backwards, improves 1 system working efficiency of circulating pump, reduce the probability of its failure generation, prolong the service life.
The left side of the pump housing 3 is equipped with feed controller, feed controller include driving motor 10, worm screw 15, connecting rod 17 and
Circular piston 18 is connected with output shaft 11 on driving motor 10, and shaft coupling 12 is connected on output shaft 11, and the transmitting of output shaft 11 is driven
The output mechanical energy of dynamic motor 10, the buffering of shaft coupling 12, vibration damping and the shafting dynamic property for improving output shaft 11 reduce failure hair
Raw probability.Transmission device is connected on shaft coupling 12, transmission device includes eccentric ratio 13 and output gear 14, eccentric ratio
13 one end is connected with shaft coupling 12, and the other end of eccentric ratio 13 connects output gear 14,14 connecting worm 15 of output gear.
Transmission device is for transmitting mechanical energy, of simple structure and strong practicability.Connecting rod 17 is located in pump head 5, and connecting rod 17 is equipped with worm gear
16, worm gear 16 and worm screw 15 are intermeshed, and are connected with circular piston 18 on connecting rod 17, circular piston 18 with feed inlet 6 mutual
Match.The course of work of above structure is as follows: driving motor 10 drives output gear by output shaft 11, shaft coupling 12 and eccentric ratio 13
14 rotation of wheel, the rotation of output gear 14 drive worm screw 15 to rotate, since worm screw 15 and worm gear 16 are intermeshed, what worm screw 15 rotated
Working condition, which is converted into, to be moved horizontally, therefore connecting rod 17 is able to drive circular piston 18 and moves horizontally.
The right side of the pump housing 3 is equipped with aspiration pump 19, and exhaust tube 20 and exhaust pipe 21, exhaust tube 20 are connected on aspiration pump 19
It is interconnected with pump head 5, exhaust pipe 21 connects external environment.For being evacuated, exhaust pipe 21 is used to be vented exhaust tube 20, thus
Environment under low pressure is formed in pump head 5, structure is simple.Electronic box 36 is installed, electronic box 36 connects driving motor 10 and aspiration pump in the pump housing 3
19, to constitute operating circuit, are equipped with transformer T in electronic box 361, pause switch P2, switch P1, relay U1And capacitor, become
Depressor T1The input power for acting on 220V passes through transformer T1Transformation after operating voltage be converted into 36V.Operating circuit includes
Main road 37, the first parallel branch 38 and the second parallel branch 39 are connected with transformer T on main road 371And switch P1, first is in parallel
Be connected with driving motor 10 on branch 38, and with relay U1It is connected with each other；Aspiration pump 19 is connected in second parallel branch 39
And pause switch P2, and with relay U1It is connected with each other；Relay U1, capacitor C1, capacitor C2And capacitor C3It is used to protect the work
Make circuit.Aspiration pump 19 is cooperated with each other with feed controller, and the course of work is as follows: feed controller is by drive motor band
Dynamic connecting rod 17 moves horizontally, and then circular piston 18 is driven to move horizontally, when circular piston 18 moves right, circular piston 18
Feed inlet 6 is blocked, the partial air in pump head 5 is taken away in the work of aspiration pump 19, to form environment under low pressure.Meanwhile feed inlet 6
There is opposite hyperbar in circulation pipe 4, forms pressure difference with pump head 5.When circular piston 18 is moved to the left, feed inlet 6 is opened,
Coating is delivered as quickly under the action of pressure difference.Simultaneously the design feature based on feed controller, coating in batches, it is regular
Conveyed, effectively prevent circulating pump system to block.
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair
Based on bright, to solve essentially identical technical problem, essentially identical technical effect is realized, made ground simple change, etc.
With replacement or modification etc., all it is covered by among protection scope of the present invention.
Claims (7)
1. a kind of for conveying the low pressure recycle pumping system of coating, including circulating pump, circulation pipe, the circulating pump include the pump housing and
Motor, the pump housing are equipped with pump head, and the two sides of the pump head are equipped with feed inlet and discharge port, the feed inlet and the discharging
The circulation pipe is respectively connected on mouthful, it is characterised in that: feed controller, the charging control are installed on the left of the pump housing
Device includes driving motor, worm screw, connecting rod and circular piston, and transmission device, the transmission device are connected on the driving motor
The worm screw is connected, the connecting rod is located in the pump head, and the connecting rod is equipped with worm gear, and the worm screw and the worm gear are mutual
It engages, is connected with circular piston on the connecting rod, the circular piston is mutually matched with feed inlet；It installs on the right side of the pump housing
There is aspiration pump, the aspiration pump and the pump head are interconnected；Electronic box is installed in the pump housing, change is installed in the electronic box
Depressor and pause switch are connected with the first parallel branch and the second parallel branch, first parallel branch on the transformer
On be connected with the driving motor, the aspiration pump and the pause switch are connected in second parallel branch；It is described go out
The circulation pipe of material mouth is equipped with pressure maintaining valve and check valve, and flange, the method are connected between the pump housing and the motor
Orchid includes upper flange and lower flange, and the upper flange connects the motor, and the lower flange connects the pump housing, the upper flange
With screw hole is equipped on the lower flange, be connected with bolt in the screw hole, by it is described be bolted the upper flange under
Flange is connected with output shaft on the driving motor, and shaft coupling is connected on the output shaft, and the shaft coupling connects the biography
Dynamic device.
2. a kind of for conveying the low pressure recycle pumping system of coating according to claim 1, it is characterised in that: the transmission dress
Set including eccentric ratio and output gear, one end of the eccentric ratio is connected with the shaft coupling, the eccentric ratio it is another
One end connects the output gear, and the output gear connects the worm screw.
3. a kind of for conveying the low pressure recycle pumping system of coating according to claim 1, it is characterised in that: the aspiration pump
On be connected with exhaust tube and exhaust pipe, the exhaust tube and the pump head are interconnected.
4. a kind of for conveying the low pressure recycle pumping system of coating according to claim 1, it is characterised in that: the pressure maintaining valve
Upper end be equipped with pressure stabilizing valve body, air inlet and gas outlet are equipped in the pressure maintaining valve body, the air inlet is located at the pressure maintaining valve
The right side of body is equipped with negative pressure spool at the air inlet, and the negative pressure spool is flexibly connected with the inner wall of the pressure stabilizing valve body, institute
The inner wall for stating negative pressure spool and the pressure stabilizing valve body is formed with first through hole, the first through hole and the air inlet phase interworking
It closes；The gas outlet is located at the left side of the pressure stabilizing valve body, is equipped with positive pressure spool, the positive pressure spool and institute at the gas outlet
The inner wall for stating pressure stabilizing valve body is flexibly connected, and the positive pressure spool is equipped with the second through-hole, second through-hole and the gas outlet
It cooperates.
5. a kind of for conveying the low pressure recycle pumping system of coating according to claim 4, it is characterised in that: the air inlet
Place is equipped with negative pressure and blocks, and the negative pressure is blocked is equipped with the first sealing ring between the negative pressure spool.
6. a kind of for conveying the low pressure recycle pumping system of coating according to claim 4, it is characterised in that: the positive valve
Mobile plate is connected on core, the mobile plate is movably connected on the gas outlet, the mobile plate and the positive pressure
The second sealing ring is equipped between spool.
7. a kind of for conveying the low pressure recycle pumping system of coating according to claim 1, it is characterised in that: in the electronic box
Relay is installed, the relay connects the transformer, and the relay connects first parallel branch, the relay
Device connects second parallel branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627989.3A CN105221386B (en) | 2015-09-28 | 2015-09-28 | It is a kind of for conveying the low pressure recycle pumping system of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627989.3A CN105221386B (en) | 2015-09-28 | 2015-09-28 | It is a kind of for conveying the low pressure recycle pumping system of coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221386A CN105221386A (en) | 2016-01-06 |
| CN105221386B true CN105221386B (en) | 2019-04-05 |
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ID=54990573
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510627989.3A Expired - Fee Related CN105221386B (en) | 2015-09-28 | 2015-09-28 | It is a kind of for conveying the low pressure recycle pumping system of coating |
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| CN (1) | CN105221386B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107880915B (en) * | 2017-11-10 | 2020-08-11 | 东南大学 | Feeding device and method for feeding solid fuel by using same |
| CN112254437B (en) * | 2020-09-30 | 2022-04-15 | 金陵科技学院 | Air exhaust mechanism for vacuum drying oven, vacuum drying oven and vacuum drying method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856969A (en) * | 1987-04-01 | 1989-08-15 | The Gorman-Rupp Company | Fluid powered diaphragm pump with cycle timer |
| JPH09189291A (en) * | 1995-06-26 | 1997-07-22 | Karsten Lang | Hot water circulating pump |
| DE10346196A1 (en) * | 2002-10-12 | 2004-04-22 | Laing, Oliver | Centrifugal circulation pump, e.g. for water, has degasifying device including gas line coming out at one end to pump wheel and at other end to low pressure region |
| CN101892976A (en) * | 2010-08-17 | 2010-11-24 | 中国工程物理研究院核物理与化学研究所 | Vacuum gas diaphragm circulating pump for tritium purification |
| JP2013136954A (en) * | 2011-12-28 | 2013-07-11 | Hino Motors Ltd | Water pump |
| CN205089547U (en) * | 2015-09-28 | 2016-03-16 | 绍兴泰克精工机电有限公司 | A low pressure circulating pump system for carrying coating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996395B (en) * | 2011-09-13 | 2016-12-21 | 精工爱普生株式会社 | Liquid-feeding pump, liquid circulating apparatus, armarium and electronic equipment |
-
2015
- 2015-09-28 CN CN201510627989.3A patent/CN105221386B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856969A (en) * | 1987-04-01 | 1989-08-15 | The Gorman-Rupp Company | Fluid powered diaphragm pump with cycle timer |
| JPH09189291A (en) * | 1995-06-26 | 1997-07-22 | Karsten Lang | Hot water circulating pump |
| DE10346196A1 (en) * | 2002-10-12 | 2004-04-22 | Laing, Oliver | Centrifugal circulation pump, e.g. for water, has degasifying device including gas line coming out at one end to pump wheel and at other end to low pressure region |
| CN101892976A (en) * | 2010-08-17 | 2010-11-24 | 中国工程物理研究院核物理与化学研究所 | Vacuum gas diaphragm circulating pump for tritium purification |
| JP2013136954A (en) * | 2011-12-28 | 2013-07-11 | Hino Motors Ltd | Water pump |
| CN205089547U (en) * | 2015-09-28 | 2016-03-16 | 绍兴泰克精工机电有限公司 | A low pressure circulating pump system for carrying coating |
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| CN105221386A (en) | 2016-01-06 |
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