CN207527053U - A kind of integral type overhauls strainer valve - Google Patents

Abstract

The utility model is related to service valve technical fields, disclose a kind of integral type maintenance strainer valve.The integral type maintenance strainer valve includes valve body and valve body on off mechanism, the body cavity is S type runners, the S types runner both ends are respectively equipped with air valve connector and pipeline connection port, S type runners are divided into the cavity of left and right two to be used to connecting or cutting off the flow between air valve connector and pipeline connection port by the valve body on off mechanism, and cartridge filter is additionally provided in the cavity equipped with air valve connector.The utility model integrates maintenance and filtering function, and both air valve can be overhauled, and but also with contaminant filter function, and air valve is helped to realize the fast function of inhaling slow row from structure, is conducive to air valve and preferably plays a role.

Description

A kind of integral type overhauls strainer valve

Technical field

The utility model is related to service valve technical fields, are overhauled more particularly, to a kind of integral type for air valve Strainer valve.

Background technology

The various air valves installed on pipeline, its entrance should installation and repairing valve, for the maintenance of air valve.Maintenance Valve generally use hand sluice valve or Hand-operated butterfly valve, but it functions only as on or off function, pipeline medium can not be carried out miscellaneous Matter filters, and various impurity is usually contained in pipeline medium, particularly raw water operating mode, leaf, aquatic weed, various floating materials and Waste is very common.Once into air valve, the sealing of air valve lapses impurity in medium, causes air valve long-term Leak, this will cause serious consequence, if installing individual service valve and individual filter simultaneously, air valve can be caused to install Position is substantially increased, and is also bothered even if installing individual filter maintenance.

It is empty in pipeline in addition, supplying water initial stage in pipeline, has a large quantity of air, when pipeline water-filling needs air valve to arrange Except the air in pipeline.In pipeline fluctuating section, local water-filling speed can be accelerated, and exhaust velocity also can be improved accordingly.Water-filling speed Too fast to cause intense impact to pipeline, water-filling excessive velocities easily generate biphase gas and liquid flow in air valve exhaust, and gas Liquid two-phase is easiest to that air valve is caused to be closed suddenly in the case where not draining air, generates air valve and closes valve water hammer, causes Pipe explosion accident can occur when serious for pipeline and equipment damage.It, will in the fluctuating section of pipeline after pipeline stops water supply a period of time The water column of disjunction is generated, when resuming water supply, existing air will be discharged between the water column of separation, if exhaust is too fast, stop water It is just fast that column makes speed up, is also easy to produce cutout water column and makes water hammer up.For ideal air valve, aspiratory action is fast, exhaust speed Degree should properly, and too fast too fast pipeline gas explosion and the cutout water column of causing of water-filling that easily generate instead of exhaust velocity makes water hammer up, properly Exhaust resistance can limit excessively high exhaust velocity, interim retention part air forms buffer air bag in pipeline, and limitation is too fast And unsafe water-filling speed, reducing cutout water column makes energy up, subtracts the water hammer harm that disappears, this is advantageous to pipeline protection, at present also There is no a service valve for being specially adapted for air valve.

Invention content

The technical issues of the utility model solves in view of the deficiencies of the prior art, provides a kind of integral type for air valve Strainer valve is overhauled, air valve can both be overhauled, but also with contaminant filter function, and overhauls or need to only dismantle valve when safeguarding Lid is not required to remove valve from pipeline, can realize on-bne repair and maintenance；The valve can also help air valve real simultaneously It is now fast to inhale slow row function, air valve is avoided to close generation water hammer suddenly, water hammer accident occurs so as to cause pipeline.

The purpose of this utility model is achieved through the following technical solutions：

There is provided integral type maintenance strainer valve, including valve body and valve body on off mechanism, the body cavity be S type runners, institute It states S type runners both ends and is respectively equipped with air valve connector and pipeline connection port, S type runners are divided by the valve body on off mechanism The cavity of left and right two is used to connecting or cutting off the flow between air valve connector and pipeline connection port, equipped with air valve connector Cavity in be additionally provided with cartridge filter, the length of the cartridge filter covers the air valve connector, by the length for lengthening cartridge filter Degree, with effective area of passage of the bore bigger connected than matched air valve.

The utility model body cavity runner is S-type, larger to resistance to water-flow, and relatively small to gas-flow resistance, therefore inhales Gas and exhaust are unimpeded, and the flow poured at a high speed can be greatly reduced its flow velocity and impact, can avoid biphase gas and liquid flow completely The phenomenon that air valve closes valve water hammer, occurs for high-rate discharge → impinging air valve float → air valve is closed suddenly →.In addition, this reality It can not only stop impurity, and in air valve air-breathing, air-flow is externally entering with Novel filtration cylinder, cartridge filter trapped inside Impurity will leave filter hole under external airflow function, not influence air-flow entrance, air valve be helped to realize simultaneously with reference to S types runner The fast function of inhaling slow row, without separately installed filter again.

Further, the valve body on off mechanism includes flap, valve seat, valve rod and handwheel, and the flap is connect with valve rod, The valve rod is connect with handwheel, the valve seat be fixed on left and right two cavitys segmentation portion, rotation handwheel by valve rod lifting come The sealing surface of flap and the sealing surface of valve seat is controlled to realize sealing disengaging or in sealing contact.

Preferably, the cartridge filter includes outer leaching net, Inner filter net and support plate for double-layer structure, and the Inner filter net is inserted in outer In strainer, the support plate is fixed on the opening of cartridge filter one end.

Preferably, the reel seam of the outer leaching net and Inner filter net is staggered by 180 °, and both ends alignment is fixed by spot welding.

Further in order to have both filtering fineness and intensity, the outer leaching net is punching stainless steel plate, the Inner filter net For the square-mesh screen of 0.4mm stainless steel wire plain weaves, filter pore size 1x1mm.

Further double medium filtration resistance is too big in order to prevent, can by calculating the effective discharge area of double-layer leaching net Ensure in the case of double-layer leaching net, be effectively also greater than by area the calculating of valve latus rectum by area, it is described outer Strainer percentage sieving area is about 51.3%, is equivalent to 26 mesh/square feet made in Great Britain, the Inner filter net percentage sieving area About 51%, quite 329 mesh of mesh number made in Great Britain/square feet.

Preferably, the body cavity is additionally provided with opening, and the opening is equipped with the valve being connect with opening removable seal Lid, one end of the cartridge filter are connected on valve deck, and the other end is connected in the groove of valve seal seat, and port corresponds to valve Body on off mechanism avoids impact of the strainer on cartridge filter directly facing flow, and realizes that cartridge filter is removably mounted at valve In vivo, in the case where not dismantling air valve, cartridge filter is cleared up online, and maintenance is convenient and easy, workload is as far as possible Few, one can be easily accomplished.

Preferably, the inner surface that the valve deck is contacted with cartridge filter is concave inward structure, which can accommodate one Divide the sundries blocked by cartridge filter, because the sundries blocked by cartridge filter is always intended to be rushed at the recess of valve deck by flow, The maintenance time of cartridge filter can be appropriately extended in this；Pressure release plug screw is additionally provided on the valve deck, to ensure people during repair and maintenance Body safety；The valve deck is connect with being open by bolt seal.

Preferably, the cartridge filter is connected with the reinforcing rib of one or two or more at the port of valve deck.

Cartridge filter is designed to double-layer structure by the utility model, and internal layer is fie screen, and outer layer is rushes eurypyloue orifice plate volume Cylinder, two layers of strainer are fixed by spot welding, and cartridge filter intensity is high, and impact resistance is good, are equipped in cartridge filter convenient for assembly and disassembly cartridge filter Reinforcing rib, further for the intensity that improves cartridge filter and the stability being connect with valve body, the quantity of reinforcing rib can be with It is arranged to multiple, cartridge filter easy to disassemble can not only be played the role of, moreover it is possible to the stability that reinforcement structure is connect with valve body.

Preferably, the valve outer surface is additionally provided with the watch window for observing cartridge filter, in order to observe cartridge filter Whether block, at any time convenient for maintenance clean.

Preferably, in order to not influence flow by valve seat, the valve seat is cyclic annular for open circles, and the corresponding flap is circle And sealing surface is fitted closely with sealing surface of seat.

Preferably, integral type maintenance strainer valve is metal hard-sealing, wear-resistant, than trip service valve sealed reliable, Service life is long, and more preferably described metal hard-sealing is wedging type metal hard-sealing, and operation is lighter.

Compared with prior art, the utility model has following advantageous effect：

The utility model integrates maintenance and filtering function, and both air valve can be overhauled, but also with impurity mistake Function is filtered, it is larger to resistance to water-flow since body cavity runner is S-type, and it is relatively small to gas-flow resistance, therefore air-breathing and exhaust It is unimpeded, and the flow poured at a high speed can be greatly reduced its flow velocity and impact, biphase gas and liquid flow high-rate discharge can be avoided completely The phenomenon that air valve closes valve water hammer, and cartridge filter conduct of arranging in pairs or groups occur for → impinging air valve float → air valve is closed suddenly → Filter, in air valve air-breathing, air-flow is externally entering, and the impurity of cartridge filter trapped inside will be under external airflow function Filter hole is opened, does not influence air-flow entrance；And in air valve exhaust, cartridge filter will slow down the speed that air-flow is discharged, and cartridge filter is not Blocking impurity is only capable of, and air valve is helped to realize the fast function of inhaling slow row from structure, is conducive to air valve and preferably plays Effect in addition, being also avoided that impact of the strainer on cartridge filter directly facing flow as filter using cartridge filter, is reduced and become Shape improves service life.

The utility model cartridge filter uses double-layer structure, and structural strength is more preferable, is unlikely to deform, and internal layer uses thin stainless steel wire The Inner filter net good filtration effect of braiding, but its intensity is not high, be easily crushed deformation, therefore redesigns a punching press in outer layer Eurypyloue reel orifice plate, since stomata is larger, the strainer filtering fineness that filtering function compares stainless steel wire braiding is poor, but It is the steel plate of punching, intensity is good, is connected by spot welding, and in the opening spot welding fixed support plate of cartridge filter one end, thus Have both filtering fine degree and intensity.

The utility model retracts conveniently for cartridge filter, and the reinforcing rib convenient for assembly and disassembly is equipped in cartridge filter, takes out valve deck When cartridge filter can be pulled out by reinforcing rib by valve body, the quantity of reinforcing rib can be arranged to multiple, further increase The intensity of filter cylinder and the stability being connect with valve body, can not only play the role of cartridge filter easy to disassemble, moreover it is possible to strengthen filtering The intensity of cylinder, it is more firm so as to be connect with valve body.

The utility model on-line maintenance is simple, conveniently, it is laborsaving.After the device is installed, the Maintenance and Repair of air valve are just become Into the maintenance to the device, i.e., to the cleaning of cartridge filter.And it is very light easy to the cleaning of cartridge filter：Rotate handwheel Flap is closed, blocks the pressure release plug screw of pipeline pressure medium → unscrew on valve deck, release → removing valve deck → is taken by reinforcing rib Go out cartridge filter, cleaning impurity → installation cartridge filter → loads onto valve deck, tightens pressure release plug screw → unlatching flap → maintenance and completes, air Valve restores normal use.Air valve need not be dismantled in entire maintenance process, one man operation is easily accomplished.Either narrow It is single to safeguard, without field in valve well or in the case of pipeline is above ground level, air valve is higher by pipeline certain altitude Lifting appliance assists dismounting air valve part to move down and carry on, and overall process does not connect with delicate flange seal part without the second people It touches, attended operation is simple and rapid, great hommization, really realizes light labour-saving on-line maintenance.

The utility model can ensure that the air valve never seal failure caused by impurity invading air valve in use And air valve drainage occurs, and subsidiary water hammer-resistant function, be conducive to the long-term work of air valve, protective conduit safety.

Description of the drawings

Fig. 1 valve body schematic diagrames.

Fig. 2 integral types overhaul strainer valve front view.

Fig. 3 integral types overhaul strainer valve structure diagram.

Fig. 4 integral types overhaul strainer valve sectional view.

Fig. 5 cartridge filter front views.

Fig. 6 support plates weld schematic diagram with cartridge filter.

Fig. 7 outer leaching net structure diagrams.

Fig. 8 Inner filter net structure diagrams.

Fig. 9 cartridge structure schematic diagrames.

2 cartridge structure schematic diagram of Figure 10 embodiments.

Wherein, 1- valve bodies, 2- air valve connectors, 3- pipeline connection ports, 4- left chamber bodies, 5- right chamber bodies, 6- valve seats, 7- valves Valve, 7-1 flap closed states, 7-2 flap openings, 8- valve rods, 9- handwheels, 10- cartridge filters, 11- valve decks, 12- bolts, 13- pressure release plug screws, 14- watch windows, 15- openings, 16- support plates, 17- outer leaching nets, 18- Inner filter nets, the inside and outside strainer points of 19- Solid welding pinpoints, 20- support plates and barrel spot welding fixed point, 21- reinforcing ribs, 22- concave inward structures, 23- valve body recess.

Specific embodiment

The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing Illustrate, expression is only schematic diagram rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which this reality is better described With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.

Embodiment 1

As shown in Fig. 1~9, the present embodiment provides a kind of integral types to overhaul strainer valve, including valve body 1 and valve body break-make machine Structure, valve body on off mechanism include flap 7, valve seat 6, valve rod 8 and handwheel 9, and flap 7 is connect with valve rod 8, and valve rod 8 connects with handwheel 9 It connects, rotation handwheel 9 lifts that the sealing surface of flap 7 and the sealing surface of valve seat 6 is controlled to connect realization sealing disengaging or close by valve rod 8 Sealing-in is touched.

As shown in Figure 1,1 inner cavity of valve body is S type runners, S type runners both ends are respectively equipped with air valve connector 2 and pipeline connects Interface 3, air valve connector 2 are connect with air valve, and S type runners are divided into left chamber body 4 and right chamber body 5 for cutting off by valve seat 6 Flow between air valve connector 2 and pipeline connection port 3 is additionally provided with cartridge filter in the left chamber body 4 equipped with air valve connector 2 10；

Valve seat 6, by valve seat 6, is designed to open circles ring-type, corresponding flap 7 by the present embodiment in order to not influence flow It is slightly less than the cricoid round of open circles for diameter, 7 sealing surface of flap can be fitted closely with 6 sealing surface of valve seat.

As shown in figs. 2 to 4,1 inner cavity of valve body is additionally provided with opening 15, is equipped at opening 15 and is connect with 15 removable seals of opening Valve deck 11, specific the present embodiment is bolted, and cartridge filter 10 is connected in valve body 1 by the foot of valve deck 11, specific to filter 10 one end of cylinder are connected on the foot of valve deck 11, and the other end is connected in the valve body recess 23 of 1 seal receptacle of valve body, and port corresponds to And covering valve seat 6, avoid impact of the strainer on the cartridge filter 10 of double-layer structure directly facing flow, improve impact resistance and With the stability being connect with valve body 1.

The present embodiment is designed as concave inward structure 22 in valve deck 11 with the inner surface that cartridge filter 10 contacts, which can be with The sundries that a part is blocked by the cartridge filter 10 of double-layer structure is accommodated, because the sundries blocked by the cartridge filter 10 of double-layer structure is total It is the recess for being intended to be rushed at valve deck by flow, this can be appropriately extended the maintenance time of cartridge filter 10, also be set on valve deck 11 There is pressure release plug screw 13 to ensure personal safety during repair and maintenance.

As shown in Fig. 5~9, the present embodiment cartridge filter 10 uses double-layer structure, in design by lengthening cartridge filter 10 Length, with effective area of passage of the bore bigger than matched air valve connector 2, the cartridge filter 10 of double-layer structure wraps Outer leaching net 17, Inner filter net 18 and support plate 16 are included, Inner filter net 18 is inserted in outer leaching net 17, and respective reel seam presses 180 ° of mistakes It opens, both ends alignment, it is internal to be fixed according to the progress spot welding of inside and outside strainer spot welding fixed point 19, as shown in fig. 6,16 spot welding of support plate The opening at 10 both ends of cartridge filter is fixed on, is safeguarded for the intensity for strengthening cartridge filter 10 and convenient for assembly and disassembly, wherein outer leaching net 17 According to the punching stainless steel plate required shown in Fig. 7, outer leaching net 17 is made in reel, and reel seam welds are secured, and outer leaching net 17 sieves Area percentage is about 51.3%, is equivalent to 26 mesh/square feet made in Great Britain；Inner filter net 18 is illustrated in figure 8 0.4mm stainless steel wires Plain weave square-mesh screen, filter pore size 1x1mm, percentage sieving area are about 51%, and 329 mesh of mesh number quite made in Great Britain/square Foot, the reel abutment joint of Inner filter net 18 answer firm welding, and making is met the requirements of the standard.

If meeting fine filtering requirement if necessary, filter screen just needs to form using very thin braided steel wire, such as The braided steel wire of 0.4mm into cartridge filter, but be just easy to the deformation that is crushed, this reality in the case that hydraulic pressure is very big in valve body It applies example and cartridge filter is designed to double-layer structure in order to have both filtering fineness and intensity, internal layer is interior using the braiding of thin stainless steel wire Strainer, good filtration effect, but its intensity is not high, be easily crushed deformation, therefore redesigns one in outer layer and be stamped with macropore Reel orifice plate, since stomata is larger, the strainer filtering fineness that filtering function compares stainless steel wire braiding is poor, but punching Steel plate, intensity is good, is connected by spot welding, and in the opening spot welding fixed support plate of cartridge filter one end, so as to have both Filter fine degree and structural strength.

But it be easy to cause that resistance is too big using double medium filtration, therefore the present embodiment is by calculating the effectively logical of double-layer leaching net Area is crossed, can be ensured in the case of double-layer leaching net, the calculating of valve latus rectum is effectively also greater than by area passes through face Long-pending.

As shown in figure 9, the present embodiment dismantles cartridge filter 10 for the ease of safeguarding, cartridge filter 10 is set close to one end of valve deck 11 There is reinforcing rib 21, when valve deck 11 are opened, directly can quickly be drawn cartridge filter 10 out of valve body by drawing reinforcing rib 21 Go out.

1 outer surface of valve body is additionally provided with the watch window 14 for observing cartridge filter 10, in order to whether observe cartridge filter 10 It blocks, at any time convenient for maintenance clean.

All components of the present embodiment are metal hard-sealing, and wear-resistant, than trip service valve sealed reliable, service life is long, The present embodiment is preferably wedging type metal hard-sealing, and operation is lighter.

Ideal air valve, aspiratory action is fast, and exhaust velocity should be suitable, and exhaust velocity too fast easily generate instead is filled Water is too fast to cause pipeline gas explosion and cutout water column makes water hammer up, suitable exhaust resistance can in pipeline interim retention part air Buffer air bag is formed, limits too fast and unsafe water-filling speed, cutout water column is reduced and makes energy up, subtract the water hammer harm that disappears, this Advantageous to pipeline protection, the present embodiment body cavity runner is S-type, larger to resistance to water-flow, and relatively small to gas-flow resistance, Therefore air-breathing and exhaust are unimpeded, and the flow poured at a high speed can be greatly reduced its flow velocity and impact, gas-liquid two can be avoided completely Mutually the phenomenon that air valve closes valve water hammer occurs for stream high-rate discharge → impinging air valve float → air valve is closed suddenly →.In addition, In air valve air-breathing, air-flow is externally entering the present embodiment, and the impurity of cartridge filter trapped inside will under external airflow function Filter hole is left, does not influence air-flow entrance；And in air valve exhaust, cartridge filter will slow down the speed that air-flow is discharged, and use Filter cylinder can not only stop impurity as filter, and air valve be helped to realize the fast function of inhaling slow row from structure, be conducive to Air valve preferably plays a role.

The present embodiment on-line maintenance is simple, conveniently, it is laborsaving.After the device is installed, the Maintenance and Repair of air valve are reformed into Maintenance to the device, i.e., to the cleaning of cartridge filter.And it is very light easy to the cleaning of cartridge filter：Handwheel is rotated to close Valve closing valve, blocks the pressure release plug screw of pipeline pressure medium → unscrew on valve deck, and release → removing valve deck → is taken out by reinforcing rib Cartridge filter, cleaning impurity → installation cartridge filter → load onto valve deck, tighten pressure release plug screw → unlatching flap → maintenance and complete, air valve Restore normal use.Air valve need not be dismantled in entire maintenance process, one man operation is easily accomplished.Either in narrow valve Still in the case of pipeline is above ground level, air valve is higher by pipeline certain altitude, single maintenance rises Men Jingzhong without field It hangs equipment, dismounting air valve part is assisted to move down and carry on, and overall process is not contacted with delicate flange seal part without the second people, Attended operation is simple and rapid, great hommization, really realizes light labour-saving on-line maintenance.

The present embodiment can ensure that the air valve never seal failure caused by impurity invading air valve in use, into And air valve drainage occurs, and subsidiary water hammer-resistant function, be conducive to the long-term work of air valve, protective conduit safety.

Embodiment 2

As shown in Figure 10, the present embodiment is substantially the same manner as Example 1, and the difference lies in the quantity of reinforcing rib 21 is at least It it is two, two reinforcing ribs 21, which intersect, is fixed on cartridge filter on the port of valve deck, can play the work of embodiment 1 With, and the intensity and stability of the cartridge filter of double-layer structure can also be strengthened further via more reinforcing ribs.

Obviously, above-described embodiment is only intended to clearly illustrate the technical solution of the utility model example, and simultaneously Non- is the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.It is made within the spirit and principles of the present invention All any modification, equivalent and improvement etc., should be included within the protection of the utility model claims.

Claims (10)

1. a kind of integral type overhauls strainer valve, which is characterized in that including valve body and valve body on off mechanism, the body cavity is S Type runner, the S types runner both ends are respectively equipped with air valve connector and pipeline connection port, and the valve body on off mechanism is by S types Runner is divided into the cavity of left and right two to be used to connecting or cutting off the flow between air valve connector and pipeline connection port, equipped with sky Cartridge filter is additionally provided in the cavity of air valve connector.

2. according to claim 1 integral type maintenance strainer valve, which is characterized in that the valve body on off mechanism include flap, Valve seat, valve rod and handwheel, the flap are connect with valve rod, and the valve rod is connect with handwheel, and the valve seat is fixed on left and right two The segmentation portion of cavity, rotation handwheel control the sealing surface of the sealing surface of flap and valve seat to realize that sealing is detached from by valve rod lifting It is or in sealing contact.

3. integral type maintenance strainer valve according to claim 1, which is characterized in that the cartridge filter is double-layer structure, including Outer leaching net, Inner filter net and support plate, the Inner filter net are inserted in outer leaching net, and the support plate is fixed on the opening of cartridge filter one end Place.

4. integral type maintenance strainer valve according to claim 3, which is characterized in that the reel of the outer leaching net and Inner filter net connects Seam is staggered by 180 °, and both ends alignment is fixed by spot welding.

5. integral type maintenance strainer valve according to claim 3, which is characterized in that the outer leaching net is punching stainless steel plate, The Inner filter net is the square-mesh screen of stainless steel wire plain weave.

6. integral type maintenance strainer valve according to claim 3, which is characterized in that the outer leaching net sieving area is English system 329 mesh/square feet, the Inner filter net sieving area are 26 mesh/square feet made in Great Britain.

7. integral type maintenance strainer valve according to claim 3, which is characterized in that the body cavity is additionally provided with opening, institute It states opening and is equipped with the valve deck being connect with opening removable seal, one end of the cartridge filter is connected on valve deck, and the other end supports It is connected in the groove of valve seal seat, and port corresponds to valve body on off mechanism.

8. integral type maintenance strainer valve according to claim 7, which is characterized in that the interior table that the valve deck is contacted with cartridge filter Face is concave inward structure, and pressure release plug screw is additionally provided on the valve deck, and the valve deck is connect with being open by bolt seal.

9. integral type maintenance strainer valve according to claim 4, which is characterized in that the cartridge filter is at the port of valve deck It is connected with the reinforcing rib of one or two or more.

10. integral type maintenance strainer valve according to claim 1, which is characterized in that the valve outer surface, which is additionally provided with, to be used for Observe the watch window of cartridge filter.