CN2040512U - Pneumatic water supply device - Google Patents
Pneumatic water supply device Download PDFInfo
- Publication number
- CN2040512U CN2040512U CN 88206093 CN88206093U CN2040512U CN 2040512 U CN2040512 U CN 2040512U CN 88206093 CN88206093 CN 88206093 CN 88206093 U CN88206093 U CN 88206093U CN 2040512 U CN2040512 U CN 2040512U
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- piston
- pressure
- auto
- 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.)
- Withdrawn
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a full automatic constant voltage type pneumatic water supply unit. A special air-supply and water-storage tank, a controllable pressure-regulating valve and a power-failure protecting valve are also provided except for the elements of a water pump, a pneumatic water-tank, a pressure controller, etc. Compared with the domestic variable-pressure type pneumatic water supply unit and the foreign variable-pressure type pneumatic water supply unit, the unit has the advantages of little variation of water-supply pressure, low start-up frequency of the water pump, automatic shut-off of the pneumatic water-tank on the occasion of power failure, automatic pump-priming at any time, etc.
Description
The utility model patent relates to a kind of constant pressure type full automatic gas pressure waterworks.
Traditional waterworks that adopt in China cities and towns are water tower formula and high level cistern formula waterworks.The major defect of this waterworks is that investment is big, energy consumption is many, the water quality vulnerable to pollution, construction period is long and use and keep in repair inconvenience etc.
Since the seventies; developed a kind of novel waterworks both at home and abroad, promptly formed pressure swing type full automatic gas pressure waterworks by electric-motor pump, auto-pneumatic cylinder, pressure controller (comprising pressure sensor and hydraulic pressure protective device), automatic air supply device, hot-water heating valve, water supply line and console.This waterworks have overcome the shortcoming of water tower formula (or high level cistern formula) waterworks basically, the cycle short (being generally about one month) that it has reduced investment (can save investment 70～80% than water tower formula, can save investment 50～70% than high level cistern formula), floor space is little, use from design to installation, water quality is not contaminated and use advantages such as maintenance is more convenient.Thereby this novel waterworks are just promptly applied in the every civilian and industrial building project in town and country.
Yet in use also there is following major defect in present this pressure swing type full automatic gas pressure waterworks.First shortcoming be feed pressure change greatly (be generally 1 kgf/centimetre
2), thereby the application life of having reduced parts such as the valve in the supply line, water meter.Second shortcoming is that the volume adjusted in the auto-pneumatic cylinder is smaller, thereby makes the number of starts frequent (average is per hour 10-20 time) of electric-motor pump, the application life of having reduced electric-motor pump.The 3rd shortcoming is that the compressed air in the auto-pneumatic cylinder can charge into feedwater piping when having a power failure, and makes water meter quicken rotation, thereby causes economic loss to the user.The 4th shortcoming is that water pump just may not inhaled water when the suction water pipe bottom valve in the pond seriously leaks.At present, for the startup frequency problem that reduces electric-motor pump, many producers have made some improvement both at home and abroad.For example, adopted one jar of double pump formula scheme of two electric-motor pump alternations in the Japanese ebara corporatlon patented product 400 type full automatic gas pressure waterworks that Harbin Water Pump Factory introduces (special permission number be clear 48-29403), thereby the startup frequency of water pump has been reduced half, prolonged the application life of waterworks, but simultaneously because of having used a cover electric-motor pump device to increase cost of equipment more.The ZYG-2 type full automatic gas pressure water supply installation of Changchun Material Testing Machine research institute and Changchun striving metallic structure factory joint research and development and for example, except that adopting one jar of double pump formula scheme, also strengthened the volume adjusted of auto-pneumatic cylinder, the number of starts of electric-motor pump is reduced on average per hour 4-6 time, has further prolonged the application life of waterworks.But, in the improvement project of present each factory for the other problems of this waterworks, such as feed pressure change greatly, during power failure compressed air enter feedwater piping and bottom valve leak can't operate as normal etc. problem still do not properly settle so far.Theoretically, solve feed pressure variation problem greatly, its otherwise effective technique approach is on the outlet supply line pressure-regulating valve to be set, thereby makes device become constant pressure type full automatic gas pressure waterworks.But understand according to the inventor, as yet do not develop a kind of more satisfactory pressure-regulating valve at present, thereby the full-automatic waterworks of constant pressure type both domestic and external also fail to be developed rapidly.
The purpose of the utility model patent provides a kind of novel constant pressure type full automatic gas pressure waterworks, compare with existing pressure swing type full automatic gas pressure waterworks, it has is neither increasing the platform number of electric-motor pump, is not increasing under the condition of volume of auto-pneumatic cylinder again, the startup frequency of electric-motor pump is reduced greatly, feed pressure change very little, can prevent when having a power failure that compressed air from entering feedwater piping and water pump advantage such as all can normally absorb water at any time.
Further introduce the basic structure of the utility model patent below in conjunction with accompanying drawing and form and operating principle, simultaneously the concrete structure and the service behaviour thereof of some special-purpose member of being adopted in this patent are made more detailed introduction.
Fig. 1 is the fundamental diagram of the utility model patent.
Fig. 2 is the electrical schematic diagram of console.
Fig. 3 is the structure chart of tonifying Qi-water storage tank.
Fig. 4 is the structure chart of power-failure protecting valve.
Fig. 5 is the sectional drawing of Fig. 4 along the B-B line.
Fig. 6 is the structure chart of controllable type pressure regulator valve.
The structure of the utility model waterworks forms as shown in Figure 1. It comprises the parts such as pond 1, filter 2, suction hose 3, trap 4, gate valve 5, electric-motor pump 6, tonifying Qi-water storage tank (comprising 7 two parts of air supply tank 8 and water storing vessel), check-valves 9, charging pipe 10, auto-pneumatic cylinder 11, controllable type pressure regulator valve 12, outlet gate valve 13, power-failure protecting valve 14, drainpipe 15, control valve 16, magnetic valve 17, air cleaner 18, water pressure gauge 19, pressure controller 20, air gauge 21, stop valve 22 and console 23. Except three special-purpose members such as tonifying Qi-water storage tank, controllable type pressure regulator valve 12 and power-failure protecting valve 14, all the other all parts and components are industrial general part commonly used or standard component in this device. Therefore, before introducing the operation principle of whole device, we introduce concrete structure and the service behaviour thereof of these three special-purpose members first.
Referring to Fig. 1 and Fig. 3, the top of tonifying Qi-water storage tank is air supply tank 8, is used for to auto-pneumatic cylinder 11 tonifying Qi, and the internal thread hole at tank 8 tops is connected with suction line, magnetic valve 17 and air cleaner 18. Its bottom is water storing vessel 7, is used for feed pump 6 to pour water, and the lower flange C of water storing vessel 7 is connected with the outlet pipe of water pump 6 and its side direction flange A is connected with trap 4 with suction hose 3 respectively with B. Water-holding quantity in the water storing vessel 7 is more than the twice of suction hose 3 water volumes. Therefore, this tonifying Qi-water storage tank is connected with the outlet water pipe with the import of water pump simultaneously, makes water pump be in all the time the state of pouring water, so no matter when when starting water pump 6, can guarantee that all the suction lift of water pump is more than 5 meters.
Referring to Fig. 4 and Fig. 5; the technical functionality of power-failure protecting valve has two; the one, can control the lowest water level in the auto-pneumatic cylinder 11, the 2nd, when having a power failure, pressure regulator valve 12 cuts out, thereby can maintain the compressed-air actuated pressure P in the auto-pneumatic cylinder 11
1Do not descend.The top of power-failure protecting valve 12 is a common normally closed type two-bit triplet electromagnetic valve DF3-3.Pressure inlet a mouth is connected with the screw top hole of auto-pneumatic cylinder with the conduit of φ 6 * 1, and b mouth and c mouth also use the conduit of φ 6 * 1 to be connected to each other.The bottom of valve 12 is special two-position three way Pneumatic valve, and three connector e, f of valve, g use 1/2 respectively, and " conduit is connected with the control valve 16 of charging pipe 10, gutter 15 and the pressure regulator valve 12 of auto-pneumatic cylinder.
The loam cake 405 of Pneumatic valve cooperates the location with its end face h and the face of cylinder with the last hole of valve body 401, in the middle circle connected in star of loam cake 405 and piston 402 heads spring 404 is housed.The face of cylinder of the lower cover 411 of Pneumatic valve cooperates the location with the following hole of valve body 401, spool 406 and liner 410 slide in the following hole of valve body 401, utilize four bolts 412 that are through on the valve body that valve body 401, loam cake 405, spool 406, liner 410 and lower cover 411 axially are connected and fixed.
Piston 402 is made up of the piston crown that has O type circle 403, piston rod and piston tail end three parts.Wherein, the head of piston 402 can upper and lower slip in the hole on valve body 401, the middle part aperture cunning of piston rod and spool 406 is joined and is put in the H chamber of spool 406, the socket cap of piston tail end (its top is a sphere) then is inserted in the interior ring groove of valve 409, thereby makes piston 402 and valve 409 hinged.Electromagnetic valve DF3-3 is fixed on the loam cake 405 of Pneumatic valve by two side direction screw (not shown)s of its bottom.In the cylindrical of spool 406 and middle part aperture, O type circle 408 and 407 is housed respectively, thus G chamber and H chamber is spaced-apart.Metering hole area f in the interface tube e of valve body 401
SArea F much smaller than drain hole
K, the scope of its best area ratio is: F
K/ f
S=10～15.
When electricity, electromagnetic valve DF3-3 opens, and makes the compressed air P at auto-pneumatic cylinder top
1Enter the cavity of resorption G of piston 402 through a, b, c mouth, overcome the counter-force of spring 403, promote piston and rise and drive valve 405 and open.At this moment, the low amounts of water in the auto-pneumatic cylinder enters spool 406 inner chamber H and enters the pond 1 from drain hole through e mouth metering hole.Because F
KMuch larger than f
S, make the pressure P in H chamber
3(pressure among control valve 16 and the controllable type pressure regulator valve control chamber I just) approaches zero, thereby can not influence the work of pressure regulator valve.If the drawdown in the auto-pneumatic cylinder 11 is to charging pipe 10(Fig. 1) the lower surface, the compressed air in then jar is through metering hole, drain hole and gutter 15(Fig. 1 of charging pipe 10 and power-failure protecting valve) enter the pond rapidly, make the pressure P in the jar
1Also quickly fall to pressure controller 20(Fig. 1) the lower limit controlled pressure, thereby restart water pump, make the auto-pneumatic cylinder water-filling, water level rises, this has just realized the function of the control lowest water level of power-failure protecting valve.
When having a power failure, electromagnetic valve DF3-3 outage, a mouth is closed, and b mouth and d mouth are connected.At this moment the compressed air of piston 402 cavity of resorption G is discharged in the atmosphere through c, b and d mouth.Drain hole is closed in counter-force effect lower piston 402 drive valve 409 declines at spring 404.Thereby the water (or gas) that enters spool 406 through metering hole can only charge into control valve 16(Fig. 1 through the g mouth), make the pressure P among the pressure regulator valve control chamber I
3Rise to P
1Thereby, closed reducing valve, this has just realized that power-failure protecting closes the compressed-air actuated pressure P that keeps in the auto-pneumatic cylinder 11 when having a power failure
1The function that does not descend.
Fig. 6 is the structure chart of controllable type pressure regulator valve.This is a kind of controllable type forward reducing valve with inverse type reducing valve static characteristic, and it can regulate the heavy caliber reducing valve automatically with very little spring force, thereby makes outlet feed pressure P
2Variation (Fig. 1) remain in the very little scope (0.5～0.7 kgf/centimetre
2).The technical functionality of this valve has two, and the one, when having a power failure, because the control of power-failure protecting valve can make the reducing valve 515 of pressure regulator valve close, thereby prevent that compressed air from entering feedwater piping, and kept P in the auto-pneumatic cylinder
1Pressure constant.The 2nd, can control feed pressure P
2Variable quantity remain in the scope of customer requirements (generally 1 kgf/centimetre
2Below), the while can enlarge the pressure P of auto-pneumatic cylinder again exponentially
1Variable quantity (can enlarge the volume adjusted of auto-pneumatic cylinder exponentially).
On the top of valve body 501, the upper hole cunning of the cylindrical of fairlead 513 and this valve body join and axially mounting on the step in this hole.Its cylindrical and valve body upper hole cunning are joined go up a sleeve 502 and with its sliding main piston sleeve 503 axially mounting of joining on fairlead 513.The flange end face of upper bush 507 is bearing on the flange end face of main piston sleeve 503 down, and external screw thread is arranged at its top, and box nut 509 is twisted thereon.Bonnet, 511 axially is fixed tightly in valve body top by stud 504 in the cavity that is surrounded by fairlead 513, box nut 509, upper bush 507 and main piston sleeve 503 with main piston sleeve 503, upper bush 507 and fairlead 513, slide block 508 is housed, spring 506, regulate bolt 510, thimble 505 and have the main piston 512 of O type circle (among the figure not label), main piston 512 can slide up and down in main piston sleeve endoporus.Spring 506 axially holds out against on upper and lower two spring keepers (among the figure not label), and it gives tight power and acts on the main piston 512 by thimble 505.The endoporus of slide block 508 has screw thread to be connected with adjusting bolt 510, and the profile of slide block is hexagon and slides in the upper bush 507 that has interior hexagonal.When bolt 510 is regulated in clockwise direction rotation, slide block 508 just upper bush 507 in to lower slider, thereby compress spring 506, apply needed pretightning force to main piston 512.Owing to adopt this slide block type adjustment structure, make the length of upper bush 507 can shorten 70 millimeters approximately, thereby reduced the overall height of pressure regulator valve.
In the upright opening of the middle part of valve body 501, the lining 514 with this hole close-fitting is housed, the endoporus conical surface of this lining is valve base.513 sliding joining of the bar portion of main piston 512 and fairlead are with reducing valve 515 in the lower end of this bar, it is tightened be fixed on the main piston rod with tightening up nut 516.The lower end that tightens up nut 516 is a cylinder, and it slides in the endoporus of paying piston 517 bar portions, thereby makes main piston 512, reducing valve 515 and pair piston 517 threes concentric, overcomes the deflection function of current out-of-balance force to valve with mutual supporting.
In the bottom of valve body 501, bottom flange 519 join with the bottom hole cunning of valve body and axial limiting on the end face in this hole.Lower support sleeve 518 sliding bearings are in the endoporus of bottom flange 519, pressing plate 521 is axially fixed on the valve body paying piston cylinder 520, lower support sleeve 518 and bottom flange 519 by stud 522, the bar portion that pays piston 517 can slide in the endoporus of the lower support sleeve 518 that has O type circle (not label), and the piston crown of paying that has O type circle (not label) can slide in the endoporus of paying piston 520, can control the piston mechanism that reducing valve is closed thereby constituted when having a power failure.
When having a power failure, under the effect of power-failure protecting valve, the pressure P among the control chamber I
3Rise to and equal pressure regulator valve inlet pressure P
1Thereby, promote to pay piston 517 and rise, overcome spring force reducing valve 515 is pressed on the valve base, realized first technical functionality of pressure regulator valve.
When electricity, under the effect of power-failure protecting valve, the pressure P among the pressure regulator valve control chamber I
3Drop to and approach zero.At this moment giving of spring 506 tightly tried hard to recommend moving main piston 512 declines, reducing valve 515 is opened, thereby pressure is P among the high pressure chest E
1Water, be throttled among the low pressure chamber F through this valve.When the F cavity pressure rose, the counter-force of reducing valve lower end water also rose, and spring 506 is compressed, and reducing valve is turned down, thereby the throttling action reinforcement makes the F cavity pressure reduce again, and effect can make P so repeatedly
2Pressure change and to remain in the very little scope.
Generally speaking, the ratio △ P of the import and export pressure variety of pressure regulator valve
1/ △ P
2Be about 3～4.Therefore, at outlet pressure variable quantity △ P
2Satisfy under the condition of customer requirements the pressure variety in the auto-pneumatic cylinder (being the inlet pressure variable quantity) △ P
1Allow to strengthen 3～4 times, thereby strengthen the volume adjusted of auto-pneumatic cylinder with identical multiple, make the startup frequency of water pump be reduced to 1/3～1/4 of general pressure swing type pressurized-type water supply unit, this has just improved the functional reliability and the application life of waterworks greatly.Therefore, may instead be minimizing starting mode of pump frequency with a controllable type pressure regulator valve increases (1～2) platform electric-motor pump group, and the motor general power also can drop to 1/2～1/3 of pressure swing type pressurized-type water supply unit.This has just realized second technical functionality of pressure regulator valve.
Below in conjunction with Fig. 1 and Fig. 2, further introduce the full-automatic feedwater process of these waterworks.
At first, close Q among Fig. 2
1, Q
2And S
1～S
4All switches, then system enters the fully automatic working state.At this moment, be lower than the lower limit controlled pressure of pressure controller 20 as the gas pressure in the auto-pneumatic cylinder 11, then 1 of the cut-in pressure controller and 3 contacts make A.C. contactor K work, and motor M drives the water pump rotation.Meanwhile, cut off electromagnet D
2Circuit electromagnetic valve 17 cuts out, promptly cut off linking of air supply tank 8 and ambient atmosphere.At this moment, because the rotation of the high speed of water pump, the water in the water storing vessel 7 suck through water pump and are discharged to again in the air supply tank 8, thereby form negative pressure in water storing vessel, make suction water pipe 3 generation siphonages and the water in the pond 1 is passed through filter 2 and suction water pipe 3, constantly be inhaled in the water storing vessel 7.From the water under high pressure that water pump 6 is discharged, enter air supply tank 8 after, promptly the air in the compressed tanks through flap valve 9 and charging pipe 10, enters in the auto-pneumatic cylinder 11, makes the water level in this jar rise the air pressure P in jar
1Also progressively rise.Work as P
1When rising to the upper limit controlled pressure of pressure controller 20,1 and 2 contactings of pressure controller, the circuitry cuts of contactor K is stopped the rotation motor and pump.Connected electromagnet D simultaneously
2, electromagnetic valve 17 energisings are opened, outside air enters the air supply tank 8 from strainer 18 and electromagnetic valve 17.At this moment because the non-return effect of flap valve 9, water under high pressure in the auto-pneumatic cylinder can't flow backwards and air supply tank 8 is connected with atmosphere, thereby the water in this jar is through water pump 6 and water storing vessel 7, and refluence pond 1 from suction water pipe 3 is till air enters water storing vessel and makes water level balance.But the water amount in the water storing vessel makes still greater than more than 2 times of suction water pipe volume whenever water pump all is in the state of pouring water.
When opening gate valve 13 feedwater, the drawdown in the auto-pneumatic cylinder 11, pressure P
1Also progressively descend.At this moment pressure regulator valve can keep feed pressure P
2Variation remain on (0.5～0.7) kgf/centimetre
2Scope in.Work as pressure P
1When dropping to the lower limit controlled pressure of pressure controller 20, reclose 1 and 3 contacts of pressure controller, repeat above water filling process, just can realize Automatic Cycle, constantly the user is supplied water.
If when taking place to have a power failure, signal lamp H
0And H
1Extinguish electromagnet D
1Outage, the DF3-3 electromagnetic valve on the power-failure protecting valve also has a power failure and cuts out, thus the pressure P of control valve 16 and pressure regulator valve control chamber I
3Rise to P
1, and then close pressure regulator valve automatically.At this moment, reliable as the sealing of flap valve 9, can make auto-pneumatic cylinder be in the complete closed state, keep P
1Pressure is constant.Like this, when sending a telegram here again, this device just need not through general waterworks institutes must process the inferior start-up course of hundreds of, and can directly enter the normal water supply state, this has also further improved the reliability of this device.
In sum, waterworks described in the utility model also have following outstanding feature except that the advantage with general pressure swing type full automatic gas pressure waterworks:
1. no matter in the suction water pipe 3 whether water is arranged, whenever start the water pump work that can both absorb water reliably.
User's feed pressure change very little, be generally (0.5～0.7) kgf/centimetre
2, the safety that can ensure to grid is with reliable.
3. do not enlarge the auto-pneumatic cylinder volume or do not increasing under the situation of water pump platform number, can make the water pump frequency be reduced to 1/3～1/4 of at present general pressure swing type pressurized-type water supply unit, thereby increasing the reliability and the application life of device greatly.
4. can prevent gas leak to waterline network when having a power failure, not need during incoming call can directly enter the normal water supply state through the start-up course of hundreds of repeatedly time.
Therefore, the described constant pressure type full automatic gas pressure of the utility model patent waterworks can replace present pressure swing type full automatic gas pressure waterworks fully in all scopes of application.
Embodiment 1: can give the constant pressure type pressurized-type water supply unit that 300 tame users supply water below six layers.
1) capital equipment and running parameter thereof:
3.9 meters of pneumatic water supply tank volumes
3
Model of pump IS6S-40-200
53 meters of H-Maxs
30 meters of maximum pump discharges
3/ hour
Pressure controller model YWK-50-6
Upper limit controlled pressure 4.0 kgfs/centimetre
2
Lower limit controlled pressure 3.5 kgfs/centimetre
2
2) measured data
The electric-motor pump operating frequency:
Limiting frequency 6.92 times/hour
Per day frequency 4.34 times/hour
Pressure range:
Auto-pneumatic cylinder pressure variation 5.3～4.0 kgfs/centimetre
2
Feed pressure variation 4.0～3.5 kgfs/centimetre
2
Embodiment 2: can give the constant pressure type pressurized-type water supply unit that 300 tame users supply water below 15 layers.
1) capital equipment and running parameter thereof:
3.9 meters of pneumatic water supply tank volumes
3
Model of pump IS6S-40-250
93 meters of H-Maxs
30 meters of maximum pump discharges
3/ hour
Pressure controller model YWK-50-7
Upper limit controlled pressure 8.0 kgfs/centimetre
2
Lower limit controlled pressure 5.5 kgfs/centimetre
2
2) actual measurement parameter:
The electric-motor pump operating frequency:
Limiting frequency 6.65 times/hour
Per day frequency 4.17 times/hour
Pressure range:
Auto-pneumatic cylinder pressure variation 8.0～5.6 kgfs/centimetre
2
Feed pressure variation 6.0～5.4 kgfs/centimetre
2
Claims (3)
1, a kind of pressurized-type water supply unit, it comprises water pump, auto-pneumatic cylinder, pressure controller, making-up air device, supply channel, hot-water heating valve and console, it is characterized in that: in this device, be provided with special-purpose tonifying Qi-water storage tank, but control type pressure regulator valve (12) and power-failure protecting valve (14); The top of tonifying Qi-water storage tank is air supply tank (8), the bottom is water storing vessel (7), the lower flange C of water storing vessel is connected with the outlet pipe of water pump (6) and its side direction flange A is connected with trap (4) with the suction water pipe (3) of water pump (6) respectively with B, thereby makes water pump be in the state of pouring water all the time; Between the delivery port of auto-pneumatic cylinder (11) and gate valve (13), be provided with controllable type pressure regulator valve (12), top in this valve body (501), bonnet, (511) passes through stud (504) with main piston sleeve (503), upper bush (507) axially is fixed tightly on the valve body, by fairlead (513), box nut (509), in the cavity of upper bush (507) and main piston sleeve (503) Bao Gu of institute, slide block (508) is housed, spring (506), regulate bolt (510), thimble (505) and have the main piston (512) of O type circle, the internal thread of slide block (508) is connected with adjusting bolt (510), the profile of slide block is hexagon and slides in the upper bush (507) that has interior hexagonal, when bolt (510) is regulated in rotation, slide block only slides and does not rotate and compress spring (506), constituted the slide block type governor motion, in the middle part upright opening of valve body (501), be equipped with and the friction tight lining in this hole (514), the endoporus conical surface of this lining is valve base, the bar portion of main piston (512) and fairlead (513) are sliding joins, be with reducing valve (515) in the lower end of this bar, with tightening up nut (516) it is fixed on the main piston rod, the lower end that tightens up nut (516) is a cylinder, it slides in the endoporus of paying piston (517) bar portion, thereby make main piston (512), reducing valve (515) and the bottom of paying piston (517), pressing plate (521) passes through stud (522) paying a piston cylinder (520), lower support sleeve (518) and bottom flange (519) are axially fixed on the valve body, the bar portion that pays piston (517) can slide in the endoporus of the lower support sleeve (518) that has O type circle (not label), and the piston crown of paying that has O type circle (not label) can slide in the endoporus of paying piston cylinder (520), thereby can control the piston mechanism that reducing valve (515) is closed when having constituted power failure; Between tonifying Qi-water storage tank and auto-pneumatic cylinder, be provided with power-failure protecting valve (14); the top of this valve is a common DF3-3 type two-position three way magnetic valve; be used for controlling the two-position three way Pneumatic valve that is positioned at this valve bottom; in the middle circle connected in star of the loam cake of this Pneumatic valve (405) and piston (402) head the middle part aperture sliding fit of spring (404) piston rod and spool (406) is housed and puts in the H chamber of spool (406); the socket cap of piston tail end (its top is a sphere) then is inserted in the interior ring groove of valve (409); thereby make piston (402) and valve (409) hinged; the pressure inlet inlet of electromagnetic valve is connected with the screwed hole of conduit with the auto-pneumatic cylinder top; b mouth and c mouth also are connected to each other with conduit, three connector e of Pneumatic valve; f; g uses the charging pipe (10) of conduit and auto-pneumatic cylinder respectively; the control valve (16) of gutter (15) and pressure regulator valve (12) is connected.
2, the pressurized-type water supply unit described in the claim 1 is characterized in that: the water storage volume of water storing vessel (7) is greater than the volume of suction water pipe (3) more than 2 times.
3, the pressurized-type water supply unit described in the claim 1 is characterized in that: the metering hole area f in the water inlet e of power-failure protecting valve (14)
SWith drain hole area F
KThe optimum range of ratio is: F
K/ f
S=10～15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206093 CN2040512U (en) | 1988-05-28 | 1988-05-28 | Pneumatic water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206093 CN2040512U (en) | 1988-05-28 | 1988-05-28 | Pneumatic water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2040512U true CN2040512U (en) | 1989-07-05 |
Family
ID=4840357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88206093 Withdrawn CN2040512U (en) | 1988-05-28 | 1988-05-28 | Pneumatic water supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2040512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132561A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Water supply device for golf course and farm |
-
1988
- 1988-05-28 CN CN 88206093 patent/CN2040512U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132561A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Water supply device for golf course and farm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201128925Y (en) | Full-automatic non-negative pressure frequency conversion energy storage emergency water supply facility | |
| CN201666281U (en) | Hydraulic system energy-saving device fully using piston accumulator for feeding liquid | |
| CN2040512U (en) | Pneumatic water supply device | |
| CN2425954Y (en) | Double-intelligent type pipe network pressure and flow boosted water supply equipment | |
| CN2668709Y (en) | Pressure-relieve water-complementing full-automatic constant-pressure water-feeding device for use in peak-hour of water use | |
| CN2825761Y (en) | Safety energy-saving direct water supply device | |
| CN2701919Y (en) | Automatic supercharging and stabilizing pressure water supply equipment connecting to water pipe network | |
| CN201650591U (en) | Integrated pressure oil source device for hydraulic control equipment of vertical axis wind-driven generator | |
| CN2614276Y (en) | Air pressure type chemical material grouting pump | |
| CN2787737Y (en) | Boosting type automatic water supply device | |
| CN220337024U (en) | Three guide pillar ceramic plunger pump drive arrangement of energy-saving type of reducing consumption | |
| CN1314863C (en) | Device for tapwater pipe line directly pressurizating | |
| CN1718947A (en) | Device for directly water supplementing pressurization of tap water pipe line | |
| CN2130949Y (en) | Hydraulic water-supply pump | |
| CN2732846Y (en) | Fully-automatic pressurized water-supplying device with cushion device for direct pipeline | |
| CN217630233U (en) | Wisdom water utilities engineering is with prefabricated pump station of wisdom type integration that degree of automation is high | |
| CN2753810Y (en) | Running water pipeline direct pressurizing apparatus | |
| CN113638941B (en) | Anti-pollution automatic oil supplementing and changing device and method for hydraulic oil tank | |
| CN2547773Y (en) | Automatic constant-pressure variable energy-saving water supply apparatus | |
| CN2324190Y (en) | Energy-saving air pressing automatic supplying water equipment | |
| CN2733052Y (en) | Quick dismounting and mounting system for water-feeding submersible pump | |
| CN2832928Y (en) | Water supply device with muffling and purifying function | |
| CN2121640U (en) | High-low pressure expansion tank automatic stead pressure feed water device | |
| CN2719929Y (en) | Filter ballast | |
| CN1021983C (en) | Automatic pressure-stabilizing water supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |