CN204062071U - Adjustable differential-pressure bypass valve - Google Patents
Adjustable differential-pressure bypass valve Download PDFInfo
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- CN204062071U CN204062071U CN201420379073.1U CN201420379073U CN204062071U CN 204062071 U CN204062071 U CN 204062071U CN 201420379073 U CN201420379073 U CN 201420379073U CN 204062071 U CN204062071 U CN 204062071U
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- pressure bypass
- rod
- adjustable differential
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Abstract
The utility model discloses a kind of adjustable differential-pressure bypass valve, relate to a kind of for supplying the valve mechanism of pressure balance between backwater in pipe-line system, it comprises valve body, valve gap, flap assembly, valve rod, elastic element, adjusting screw rod and handwheel etc., mainly in valve gap, dividing plate and piston are set up, valve rod movable upper end fixes with piston through dividing plate and is connected, elastic element lower end then pushing tow on piston, during use can simultaneously by means of elastic element and piston be used for ensure that flap assembly possesses the trend of closed valve water intake all the time, and the entering of regulation valve body, pressure between water outlet, therefore improve after structural design comparatively reasonable, operating process is laborsaving, and there is good sealability, and cost of production is low, the use needs in growing valve market can be met.
Description
Technical field
The utility model relates to a kind of pipeline valve, specifically refers to adjustable differential-pressure bypass valve.
Background technique
Differential-pressure bypass valve be a kind of for air-conditioning system between backwater to balance the valve of pressure reduction, thermostat valve when the temperature of end region of dispelling the heat in pipeline reaches setting value in system cuts out, end circular flow is low to moderate zero gradually, because in system, the minimizing of end flow causes pressure difference to raise, noise produces, even can produce and cause recycle pump to burn the problem of pump when all ends are closed, therefore by before in differential-pressure bypass valve keeping system, the accurately mutual definite value of end pressure reduction, and the noise of system can be reduced to greatest extent, and the damage that excessive pressure reduction causes equipment, also can according to terminal heat load situation adjustment aperture, at end loads very little or be zero time also can ensure that in air-conditioner set, a certain amount of water passes through, protect air-conditioner set and also serve energy-saving and cost-reducing effect.At present, traditional adjustable differential-pressure bypass valve and disclosed China Patent No. be 201320451653.2 " a kind of differential-pressure bypass valve " similar, its structure is mainly made up of valve body, valve gap, flap assembly, elastic element, adjusting screw rod, handwheel etc., elastic element two ends difference pushing tow on flap assembly and spring seat, thus makes flap assembly possess the trend of closed valve water intake all the time.But, along with the application area of pipeline valve constantly expands, the adjustable differential-pressure bypass valve of conventional construction has been difficult to the use needs meeting growing valve market, and more Consumers also wish that valve manufacturer can release the adjustable differential-pressure bypass valve with different structure and usage mode more.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and provides a kind of rational in infrastructure, rapid operation, sealing is reliable, cost of production is low adjustable differential-pressure bypass valve.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of adjustable differential-pressure bypass valve, comprise valve body and seal the valve gap being arranged on body top, valve body and valve gap are hollow structure; Be provided with water intake and water outlet in described valve body, between entery and delivery port, be provided with valve seat, this valve seat is provided with flap assembly and drives flap assembly to open and close the valve rod of valve seat; Described valve gap top is provided with handwheel, in handwheel, be provided with adjusting screw rod, and this adjusting screw rod lower end to be stretched in valve gap and is provided with the spring seat be threaded; Be provided with the elastic element of mutual pushing tow between described spring seat and valve rod upper end, described valve gap bottom is provided with the dividing plate of hermetically enclosed valve gap, and be provided with the piston that movable sealing is installed in valve gap, this piston will be separated into mutual disconnected epicoele and cavity of resorption in valve gap; Described valve rod movable upper end fixes with piston through dividing plate and is connected; Described elastic element lower end pushing tow is on piston.
Described handwheel comprises the main body of fastening on valve gap top and the upper shield of activity button-fold also rotation in main body; Described main body side is provided with dial and graduation indication lid, and this graduation indication covers and is provided with indication window; Be provided with the scale collar that suit is installed outside described upper shield, in upper shield, be provided with the plectrum that dial is rotated.
Be provided with pod apertures in described valve rod, this pod apertures upper end is communicated with cavity of resorption, and pod apertures lower end is communicated with water intake.
The mounting structure of described adjusting screw rod in handwheel is provided with the lock screw be connected and fixed between adjusting screw rod upper end and handwheel.
Described flap assembly comprises the flap seat, flap, pressing plate and the hexagon nut that seal and be fixed on valve rod lower end.
Described valve body is angie type valve body, and described water intake is located at valve body lower portion, and water outlet is located at valve body sidepiece, and the water channel shaft axis of entery and delivery port is vertical positional relationship.
The water outlet of described valve body is provided with the joint be tightly connected.
Compared with prior art, the utility model has mainly set up dividing plate and piston in the valve gap of adjustable differential-pressure bypass valve, valve rod movable upper end fixes with piston through dividing plate and is connected, elastic element lower end then pushing tow on piston, during use can simultaneously by means of elastic element and piston be used for ensure that flap assembly possesses the trend of closed valve water intake all the time, therefore structural design after improving comparatively rationally, operating process is laborsaving and have good sealability, and cost of production is low, can meet the use needs in growing valve market.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the sectional structure schematic diagram of handwheel.
Fig. 3 is the structural representation of dial.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As shown in Figure 1 to Figure 3, 1. valve body, 2. hexagon nut, 3. pressing plate, 4. flap, 5. flap seat, 6. valve rod, 7. pod apertures, 8. dividing plate, 9. handwheel, 91. main bodys, the 92. scale collars, 93. upper shields, 94. dust covers, 95. plectrums, 96. indication windows, 97. graduation indication lids, 98. dials, 981. scale numerals, 982. allocating slot, 10. "O"-ring, 11. valve gaps, 12. pistons, 13. spring washers, 14. elastic elements, 15. spring seats, 16. adjusting screw rods, 17. lock screws, 18. epicoeles, 19. cavity of resorptions, 20. water outlets, 21. joints, 22. pads, 23. locking nuts, 24. water intakes.
Adjustable differential-pressure bypass valve, relating to a kind of for supplying the valve mechanism of pressure balance between backwater in pipe-line system, being mainly made up of valve body 1, valve gap 11, flap assembly, valve rod 6, elastic element 14, piston 12, adjusting screw rod 16 and handwheel 9 etc.
Described valve body 1 is the angie type valve body of hollow structure, three-port structure is set in it, lower through-hole is set to water intake 24, side through-hole is set to water outlet 20, the joint 21 being connected to water outlet 20 end with locking nut 23 is also provided with at water outlet, be connected on pipeline to facilitate, be provided with pad 22 between the end face of joint 21 and water outlet 20 and form Hermetical connecting structure.
Described water intake 24 is vertical positional relationship with the water channel shaft axis of water outlet 20, at entery and delivery port, the place of connecting is provided with valve seat, this valve seat is actually a circle and is arranged on interior shoulder on valve body 1 inner tubal wall, and valve seat is provided with flap assembly and drives flap assembly do elevating movement and open and close the valve rod 6 of valve seat.
Described flap assembly mainly comprises the flap seat 5 in valve rod 6 lower end in tandem, flap 4 and pressing plate 3 successively, and three is undertaken being fastenedly connected by two hexagon nuts 2 of valve rod 6 underpart again and forms one with valve rod 6.The external diameter size of flap 4 need be designed to just in time sealing cover and be combined on valve seat.Described valve rod 6 is at right angle setting state, and valve rod 6 upper end is stretched in valve gap 11.
Described valve gap 11 is threaded in valve body 1 upper through-hole, needs to arrange "O"-ring 10 and seal to be formed between valve gap 11 and valve body 1; Described valve gap 11 is also set to hollow structure, its bottom is provided with the dividing plate 8 be threaded, valve gap 11 internal cavities can carry out hermetically enclosed by this dividing plate, and in valve gap 11, be also provided with piston 12, this outside piston week is provided with a "O"-ring 10 contacted with valve gap 11 internal chamber wall, to form the movable sealing structure of piston 12 in valve gap 11, and mutual disconnected epicoele 18 and cavity of resorption 19 will be separated in valve gap by piston.
Described valve rod 6 upper end is fixedly connected on piston 12 through dividing plate 8 with hexagon nut and spring washer 13, needs to arrange "O"-ring 10 using the dynamic seal moved as valve rod 6 between valve rod 6 and dividing plate 8; Be provided with the pod apertures 7 arranged along valve rod shaft axis in described valve rod 6, this pod apertures upper end is communicated with epicoele 18 from both sides respectively, the direct through valve rod 6 in lower end and being connected with water intake 24.
Described valve gap 11 top is provided with handwheel 9, and this handwheel comprises the main body 91 of fastening on valve gap 11 top and the upper shield 93 of activity button-fold in main body, therefore upper shield opposing body 91 and valve gap 11 can be formed and rotate; The minor axis of disjunctor is extended in described main body 91 side, this minor axis is provided with rotating dial 98, and on the exterior edge face of dial, the form of circumference uniform distribution is provided with scale numeral 981, the outer peripheral surface of dial 98 is then provided with multiple allocating slot 982, the number needs of allocating slot designs according to the rotation angle of dial 98 and the display number of turns; Meanwhile, outside dial 98, be also provided with the graduation indication lid 97 be arranged in main body 91, this graduation indication covers and is provided with indication window 96, reads for the scale numeral 981 on corresponding display scale dish 98 is also convenient; The scale collar 92 that suit is installed is provided with outside described upper shield 93, this scale collar can carry out with the scale numeral 981 on dial 98 correspondingly rotating the number of turns to show handwheel 9, the plectrum 95 of linking body structure is provided with in upper shield 93, multiple allocating slots 982 on this plectrum and dial 98 outer peripheral surface form corresponding position relation, namely upper shield 93 rotation drive plectrum 95 can distinguish the allocating slot 982 in dial 98, thus the number of turns of opening of current handwheel 9 is accurately presented in the indication window 96 of graduation indication lid 97 by the scale numeral 981 on dial 98.
Described upper shield 93 shaft core position is provided with an adjusting screw rod 16, this adjusting screw rod upper end is fitted in the mounting hole at upper shield 93 axle center place, and undertaken connecting by lock screw 17 and make upper shield 93 and adjusting screw rod 16 form entirety, mounting hole on upper shield 93 can be closed by dust cover 94, plays attractive in appearance and dustproof effect; Described adjusting screw rod 16 lower end is stretched in valve gap 11, it is active mounting relation between adjusting screw rod 16 and valve gap 11, namely upper shield 93 rotates and adjusting screw rod 16 can be driven to do freely to rotate and can not be subject to valve gap 11 and interfere, the lower end that adjusting screw rod 16 stretches into valve gap 11 is also provided with a spring seat be threaded 15, the elastic element 14 of mutual pushing tow is provided with, as cylindrical spring etc. between piston 12 in this spring seat and valve gap 11.When after rotation handwheel 9, flexible spring seat 15 can be with to form elevating movement through adjusting screw rod 16, thus adjust the pretightening force of elastic element 14, and by the pushing tow of elastic element for piston 12, flap assembly can be driven to possess the trend of closed valve water intake 24 all the time through valve rod 6 again, when the pretightening force that cavity of resorption 19 pressure below piston 12 exceedes elastic element 14 adds the pressure of water outlet 20, the pressure medium of water intake 24 moves upward through flap assembly and valve rod 6 pushing tow piston 12, and namely valve opens water flowing.
The utility model can be arranged on in water return pipeline, namely water intake 24 connects supply channel, water outlet 20 connects water return pipeline, when the pressure that the pressure of water intake 24 is greater than water outlet 20 adds the pretightening force of elastic element 14, namely flap assembly opens valve seat, and now the medium of supply channel flow into water return pipeline, increases the rate-of flow in water return pipeline, until when the pressure of water outlet 20 exceedes the pressure of water intake 24, flap assembly is closed again; In addition, the initial pretension force value of adjustable elastic element 14 is also carried out by rotating handwheel 9.
Claims (7)
1. an adjustable differential-pressure bypass valve, comprise valve body (1) and seal the valve gap (11) being arranged on body top, valve body (1) and valve gap (11) are hollow structure; Be provided with water intake (24) and water outlet (20) in described valve body (1), between entery and delivery port, be provided with valve seat, this valve seat is provided with flap assembly and drives flap assembly to open and close the valve rod (6) of valve seat; Described valve gap (11) top is provided with handwheel (9), is provided with adjusting screw rod (16) in handwheel, and this adjusting screw rod lower end to be stretched in valve gap (11) and is provided with the spring seat (15) be threaded; The elastic element (14) of mutual pushing tow is provided with between described spring seat and valve rod (6) upper end, it is characterized in that described valve gap (11) bottom is provided with the dividing plate (8) of hermetically enclosed valve gap, be provided with the piston (12) that movable sealing is installed in valve gap (11), this piston will be separated into mutual disconnected epicoele (18) and cavity of resorption in valve gap (11); Described valve rod (6) movable upper end fixes with piston (12) through dividing plate (8) and is connected; Described elastic element (14) lower end pushing tow is on piston (12).
2. adjustable differential-pressure bypass valve according to claim 1, is characterized in that described handwheel (9) comprises the main body (91) of fastening on valve gap (11) top and the upper shield (93) of activity button-fold also rotation in main body; Described main body (91) side is provided with dial (98) and graduation indication lid (97), and this graduation indication covers and is provided with indication window (96); Be provided with the scale collar (92) that suit is installed outside described upper shield (93), in upper shield (93), be provided with the plectrum (95) that dial (98) is rotated.
3. adjustable differential-pressure bypass valve according to claim 1 and 2, is characterized in that being provided with pod apertures (7) in described valve rod (6), and this pod apertures upper end is communicated with cavity of resorption (19), and pod apertures (7) lower end is communicated with water intake (24).
4. adjustable differential-pressure bypass valve according to claim 1 and 2, is characterized in that the described mounting structure of adjusting screw rod (16) in handwheel (9) is provided with the lock screw (17) be connected and fixed between adjusting screw rod (16) upper end and handwheel (9).
5. adjustable differential-pressure bypass valve according to claim 1 and 2, is characterized in that described flap assembly comprises sealing and is fixed on the flap seat (5) of valve rod (6) lower end, flap (4), pressing plate (3) and hexagon nut (2).
6. adjustable differential-pressure bypass valve according to claim 1 and 2, it is characterized in that described valve body (1) is angie type valve body, described water intake (24) is located at valve body lower portion, and water outlet (20) is located at valve body sidepiece, and the water channel shaft axis of entery and delivery port is vertical positional relationship.
7. adjustable differential-pressure bypass valve according to claim 6, is characterized in that the water outlet (20) of described valve body (1) is provided with the joint (21) be tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379073.1U CN204062071U (en) | 2014-07-10 | 2014-07-10 | Adjustable differential-pressure bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379073.1U CN204062071U (en) | 2014-07-10 | 2014-07-10 | Adjustable differential-pressure bypass valve |
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| Publication Number | Publication Date |
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| CN204062071U true CN204062071U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420379073.1U Active CN204062071U (en) | 2014-07-10 | 2014-07-10 | Adjustable differential-pressure bypass valve |
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| CN (1) | CN204062071U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299306A (en) * | 2015-11-13 | 2016-02-03 | 广东联塑科技实业有限公司 | Combined adjusting hand wheel device |
| CN106567953A (en) * | 2016-11-07 | 2017-04-19 | 武汉船用机械有限责任公司 | Steam regulating valve |
| CN109237089A (en) * | 2017-07-10 | 2019-01-18 | 苏州普联力量智能流体控制有限公司 | A kind of self-adjustable silk mouth pressure reducing valve |
| CN109654078A (en) * | 2017-10-11 | 2019-04-19 | 中国航发西安动力控制科技有限公司 | A kind of differential pressure valve component with fuel oil specific gravity debugging functions |
| CN112610700A (en) * | 2020-12-11 | 2021-04-06 | 中国北方发动机研究所(天津) | Bypass valve for circulating water in laboratory |
| WO2022237031A1 (en) * | 2021-05-12 | 2022-11-17 | 浙江鸿友压缩机制造有限公司 | Air compressor pressure-regulating valve capable of conveniently regulating pressure set interval value |
-
2014
- 2014-07-10 CN CN201420379073.1U patent/CN204062071U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299306A (en) * | 2015-11-13 | 2016-02-03 | 广东联塑科技实业有限公司 | Combined adjusting hand wheel device |
| CN106567953A (en) * | 2016-11-07 | 2017-04-19 | 武汉船用机械有限责任公司 | Steam regulating valve |
| CN109237089A (en) * | 2017-07-10 | 2019-01-18 | 苏州普联力量智能流体控制有限公司 | A kind of self-adjustable silk mouth pressure reducing valve |
| CN109654078A (en) * | 2017-10-11 | 2019-04-19 | 中国航发西安动力控制科技有限公司 | A kind of differential pressure valve component with fuel oil specific gravity debugging functions |
| CN109654078B (en) * | 2017-10-11 | 2020-09-22 | 中国航发西安动力控制科技有限公司 | Differential pressure valve assembly with fuel specific gravity correction function |
| CN112610700A (en) * | 2020-12-11 | 2021-04-06 | 中国北方发动机研究所(天津) | Bypass valve for circulating water in laboratory |
| WO2022237031A1 (en) * | 2021-05-12 | 2022-11-17 | 浙江鸿友压缩机制造有限公司 | Air compressor pressure-regulating valve capable of conveniently regulating pressure set interval value |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |