CN1108474C - Flow control valve of feedback regulation pressure-difference hydraulic machine - Google Patents
Flow control valve of feedback regulation pressure-difference hydraulic machine Download PDFInfo
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- CN1108474C CN1108474C CN99121722A CN99121722A CN1108474C CN 1108474 C CN1108474 C CN 1108474C CN 99121722 A CN99121722 A CN 99121722A CN 99121722 A CN99121722 A CN 99121722A CN 1108474 C CN1108474 C CN 1108474C
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- hydraulic press
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Abstract
The present invention relates to a flow rate control valve for a feedback pressure difference regulating type hydraulic press. In order to provide a flow rate control device having the advantages of simple structure, low device cost, convenient operation and repair, and service life extension of hydraulic press, the present invention is proposed. The flow rate control valve for a feedback pressure difference regulating type hydraulic press comprises a body, a control piece, an elastic element and an adjusting element, wherein a casing pipe is rotatablely installed on the body, and an inlet and an outlet which are communicated by a flow passage are arranged at both sides of the body. A hollow chamber which is communicated with the flow passage is formed on the casing pipe, and the bottom end of the hollow chamber is provided with an extending part which forms a valve port and is inserted in the flow passage of the body. The control piece is arranged in the hollow chamber of the casing pipe in a sliding mode, and the top surface of the control piece is lower than the height of an interface. The elastic element is arranged between the top surface of the control piece and the inner top surface of the hollow chamber.
Description
Technical field
The invention belongs to the control valve of water supply system auxiliary device, particularly a kind of feedback regulating pressure difference type hydrualic press flow rate.
Background technique
Now in the water system that building adopted, for fear of tap water pipe line hypotony or too high, thereby produce the situation that current are intermittent or current spray suddenly rapidly when causing water discharge of water faucet, more than installing on the supply channel in order to stablize the hydraulic press of hydraulic pressure, the hydraulic pressure of keeping supply channel by hydraulic press keeps within the specific limits greatly.
Commonly use in order to the hydraulic press of control hydraulic pressure according to the difference of its control mode, can be divided into haply with the constant voltage hydraulic press of the variable-frequency type motor of frequency variator collocation and with pressure switch control hydraulic press and start the pressure-difference hydraulic machine that stops.
Pressure-difference hydraulic machine comprises hydraulic press, is arranged on the pressure switch and the storage pressure cylinder of hydraulic press export pipeline.By the hydraulic pressure of pressure switch sensing export pipeline, but and setting pressure scope.Prescribe a time limit when user's water makes supply channel pressure be reduced to the following of this pressure switch setting pressure scope, control this hydraulic press by pressure switch and start, to replenish the hydraulic pressure of supply channel; And after water pipe pressure rises, control this hydraulic press by pressure switch to shut down, so that the hydraulic pressure of supply channel can not continue to rise.Storage pressure cylinder system is used for when hydraulic press starts, and stores hydraulic pressure; And after hydraulic press shut down, the pressure that stores by the storage pressure cylinder replenished the water yield that supply channel runs off, so that after hydraulic press shut down, it is too fast that the pressure of supply channel can not descend, to reduce the frequency that hydraulic press starts.
Variable-frequency type constant voltage hydraulic press comprises the pressure-sensing switch and the frequency variator of the variable variable-frequency type motor of hydraulic press, rotating speed, detecting supply channel pressure.By the hydraulic pressure size that frequency variator measures according to the pressure-sensing switch, the lifting of control hydraulic press motor speed is to keep the supply channel stable water pressure.
The pressure-difference hydraulic machine of commonly using is compared with the variable-frequency type hydraulic press, because the motor speed of pressure-difference hydraulic machine is for immobilizing, system utilizes starting or stoping of pressure switch control hydraulic press motor to regulate hydraulic pressure merely, therefore, if the water-outlet quantity of hydraulic press is during greater than the water demand amount of supply channel, will make that the rate of pressure rise of supply channel is too fast, after hydraulic press starts, just shut down at once, the frequency that causes hydraulic press to start, stop is too frequent, not only cause hydraulic press power consumption excessive, but also can have a strong impact on the working life of hydraulic press.
Simultaneously, when the water-outlet quantity of hydraulic press during greater than water consumption, the current that hydraulic press is sent are blocked in the outlet of hydraulic press, and the hydraulic press outlet pressure is risen, and my load rises significantly when making the hydraulic pressure running, and power consumption heightens when making motor rotation.
Therefore, the water flow that the ideal design of pressure-difference hydraulic machine should be hydraulic press is equal to the water-outlet quantity of supply channel, so that after the hydraulic press startup, the pressure of supply channel can rise lentamente, hydraulic press starts to avoid, stop frequency too frequently reaches the excessive situation of power consumption.
But because the motor speed of pressure-difference hydraulic machine is fixed, its water-outlet quantity can't be changed, and the water consumption of general mansion can have great difference along with the difference of time.Therefore the water system artificer just must adopt the hydraulic press of big water-outlet quantity in order to satisfy the water consumption of peak hour.But like this one is, when the slack hours water consumption reduced, the water-outlet quantity of hydraulic press just can far surpass user's water consumption, does not therefore have and can cause the hydraulic press running to waste energy with avoiding, and have influence on the shortcoming of hydraulic press electrical machinery life, and make the water pressure transient.
And frequency-changing pressure stabilizing formula hydraulic press owing to adopt the variable-frequency type motor of speed variable, therefore, can reduce rotating speed of motor in water consumption hour; When water consumption is big, improve motor speed.So that the water-outlet quantity of hydraulic press can adjust along with the water consumption of supply channel size, thereby can avoid the hydraulic press electric motor starting to stop too frequent shortcoming.
But this frequency-changing pressure stabilizing formula hydraulic press of commonly using, owing to must use complex structure, expensive variable-frequency type motor and frequency variator, and need the professional workforce to safeguard, therefore, though frequency-changing pressure stabilizing formula hydraulic press has comparatively favorable effects, the cost of its equipment cost and operation and maintenance is much larger than pressure-difference hydraulic machine, and its cost is far from general small user and can bears, therefore, have only large-scale user just can select to use constant pressure frequency conversion formula hydraulic press now.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, equipment cost is low, operation and maintenance is convenient, usability is good, save the energy and prolong the control valve of the feedback regulating pressure difference type hydrualic press flow rate in hydraulic press working life.
The elasticity that the present invention includes body, control piece, elastic element and be connected in elastic element is adjusted element; The body top center is rotatablely equipped with sleeve pipe, and the body both sides are provided with inlet and the outlet that is communicated with by runner; Sleeve pipe constitutes the empty chamber be communicated with runner, and its bottom is provided with the formation valve port and inserts extension in the body runner; It is indoor that the control piece slip is arranged at the sleeve pipe sky, and make its end face be lower than the height of interface, and elastic element is arranged between control piece end face and the empty indoor top surface.
Wherein:
Be provided with rotary positioning structure between body and the sleeve pipe.
Rotary positioning structure has the connecting base that is upwards extended the fit sleeve pipe by body, establishes several axial elasticity groovings in the connecting base opening end, week is provided with annular groove in it; Sleeve pipe is provided with the trip that engages with all annular grooves in the connecting base with connecting base suit place periphery.
The body connecting base is screwed with bunching ring outward; Body connecting base periphery is provided with outside thread; Bunching ring be provided with connecting base on external thread spiro fastening to tighten the internal thread of connecting base opening end.
Owing to the present invention includes body, control piece, elastic element and adjust element; Be rotatablely equipped with sleeve pipe on the body, the body both sides are provided with by what runner was communicated with to go into, export; Sleeve pipe constitutes the empty chamber be communicated with runner, and its bottom is provided with the formation valve port and inserts extension in the body runner; It is indoor that the control piece slip is arranged at the sleeve pipe sky, and make its end face be lower than the height of interface, and elastic element is arranged between control piece end face and the empty indoor top surface.During assembling, when the present invention is used for comprising the pressure-difference hydraulic machine of motor, water pump, intake pipe, supply channel, storage pressure cylinder, pressure switch and check valve.The present invention is arranged on the intake pipe of water pump, so that current flow through after the present invention, flows into the inlet of this water pump again.During operation, the present invention can be controlled by hydraulic press pump outlet variation in pressure, and changes the flow by current along with the variation in pressure of supply channel, uses the inflow and the water-outlet quantity that make water pump and can adjust along with the water consumption of supply channel.When the water consumption of supply channel made supply channel pressure descend greatly, flow of the present invention was to strengthen, and the inflow of water pump is increased; When water consumption after a little while, flow of the present invention system can reduce, and makes the inflow of water pump reduce, and therefore makes the water-outlet quantity of water pump also along with minimizing.When hydraulic press flow and pressure range are very big, by the sleeve pipe that is rotatably installed in the body connecting base, adjust valve port and the overlapping degree of body cross section of fluid channel that the casing shoe extension constitutes, pass through the runner flow to adjust current; And by the elasticity coefficient of adjusting element adjustment elastic element, with the various lifts that are adapted to hydraulic press, the setting of pressure, not only simple in structure, equipment cost is low, operation and maintenance is convenient, and usability is good, save the energy and prolong hydraulic press working life, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, for structural representation sectional view of the present invention.
Fig. 2, move schematic representation for the present invention.
Fig. 3, be among Fig. 2 A to view.
Fig. 4, be B-B sectional view among Fig. 1.
Fig. 5, for being assembled with pressure-difference hydraulic machine structural representation of the present invention.
Fig. 6, be C-C sectional view (the sleeve bottom opening transfers to maximum) among Fig. 1.
Fig. 7, be C-C sectional view (the sleeve bottom opening is turned down) among Fig. 1.
Embodiment
As shown in Figure 5, the present invention 30 is used for comprising the pressure-difference hydraulic machine 10 of motor 11, water pump 12, intake pipe 13, supply channel 14, storage pressure cylinder 20, pressure switch 21 and check valve 60.Water pump 12 is driven by motor 11, and the water intake of water pump 12 and water outlet are connected with intake pipe 13 and supply channel 14 respectively.Storage pressure cylinder 20 is arranged on the supply channel 14, system can be when hydraulic press 10 starts, allow current enter in the storage pressure cylinder 20, and when hydraulic press 10 shuts down, the hydraulic pressure that stores by this storage pressure cylinder 20 replenishes the water yield that supply channel 14 runs off, so that after hydraulic press 10 shut down, the hydraulic pressure of supply channel 14 can not descend at once, must start at once again after avoiding hydraulic press 10 to shut down.
Pressure is opened 21 and is closed and to be arranged on the supply channel 14, by the hydraulic pressure of pressure switch 21 sensing supply channels 14, and control these hydraulic press 10 motors 11 start and stop.
The present invention 30 is arranged on the intake pipe 13 of water pump 12, so that current flow through after the present invention 30, flows into the inlet of this water pump 12 again.As shown in Figure 5, the present invention 30 has the connecting tube 50 that is connected with connection mouth seat 37, and the other end of connecting tube 50 is provided with the pressure export 22 that is communicated with supply channel 14, therefore makes the hydraulic pressure of supply channel 14 can be directed among the present invention 30.
The present invention 30 major technique feature ties up in controlled by hydraulic press 10 water pumps 12 outlet end variation in pressure, and along with the variation in pressure of supply channel 14 changes flow by current, use the inflow and the water-outlet quantity that make water pump 12 and can adjust along with the water consumption of supply channel 14.When the water consumption of supply channel 14 made supply channel 14 pressure descend greatly, the present invention 30 flow system can strengthen, and the inflow of water pump 12 is increased; When water consumption after a little while, flow of the present invention is to reduce, and make the inflow of water pump 12 reduce, therefore make the water-outlet quantity of water pump 12 also along with minimizing, and the hydraulic pressure that pressure switch 21 senses also can gently rise, make motor 11 start the stable action that stops, to avoid the frequent situation of motor 11 startings.
As shown in Figure 1, the present invention 30 comprises body 31, control piece 40, is the elastic element 42 of extension spring, adjustment element 70, bunching ring 81,82, cock body 45 and connection mouth seat 37.
Adjust the elasticity coefficient that element 70 is used to adjust elastic element 42, it is for being contained in sleeve pipe 33 slide lid outward by upper and lower flip sleeve, which is provided with interface 71, and extend hook 43 down in interface 71 tops, adjust element 70 bottoms and establish several axial elasticity groovings 72, and be respectively equipped with trip 73 and the outside thread 74 that engages with sleeve pipe 33 annular grooves 331 in the bottom internal and external circumferential.
As shown in Figure 5, check valve 60 is arranged on the present invention 30 the inlet 34 side intake pipes 13, with the working life that is used to prevent supply channel 14 and the present invention's 30 interior current adverse currents and prolongs seal ring 41.
As shown in Figure 2, after the pressure of supply channel 14 enters sky chamber 32, can promote control piece 40 moves towards the below, by between control piece 40 and empty chamber 32 inner top surfaces, being the elastic element 42 of extension spring, control piece 40 is produced the elastic acting force opposite with the hydraulic pressure direction, and 40 generations of drive control piece are born the opposite displacement of hydraulic pressure direction with it.Therefore, when the hydraulic pressure of supply channel 14 when being the tensile-elasticity of elastic element 42 of extension spring, just can make control piece 40 under water pressure pushing, produce downward displacement, and when the hydraulic pressure of supply channel 14 descended, control piece 40 moved up under for the elastic element 42 tensile-elasticity effects of extension spring.
As Fig. 1, Fig. 2, shown in Figure 4, control piece 40 bears supply channel 14 interior hydraulic pressure alternately and is the effect of elastic element 42 tensile-elasticities of extension spring, make upper and lower shift reciprocately on the body 31 in the sleeve pipe empty chambers 32 33 and be installed in rotation, and its bottom system can stretch into extend to be communicated with to go into, valve port 332 places of the extension 333 of the sleeve pipe 33 in the runner 39 of outlet 34,35, and make runner 39 be subjected to covering in various degree.As shown in Figure 2, when the pressure of supply channel 14 increased, control piece 40 was subjected to the promotion of hydraulic pressure, stretch into the valve port that extends to extension 333 in the runner 39 332 places of sleeve pipe 33, shelter from valve port 332, the reduced cross-sectional area that current are passed through, and the inflow of water pump 12 is reduced.Simultaneously, as shown in Figure 1, when the pressure of supply channel 14 hour, be the tensile-elasticity of the elastic element 42 of the extension spring pressure greater than supply channel 14, control piece 40 moves up under the elastic element 42 tensile-elasticity effects that are extension spring, the degree that the valve port 332 controlled products 40 of minimizing sleeve pipe 33 extensions 333 cover, therefore, the sectional area that current are passed through strengthens, and the inflow of water pump 12 is increased.And by the positioning ring 321 restriction control pieces 40 of sleeve pipe empty chambers 33 32 inner circle walls upwards mobile extreme higher position in empty chamber 32 in.
As shown in Figure 3, the some grooves 47 that are provided with by control piece 40 bottoms when control piece 40 contact with body 31 inner bottom parts, still can have small amount of water 34 to flow to through groove 47 and to export 35 from entering the mouth, and cause cavitation corrosion because of suction less than water to prevent water pump 12.
As shown in Figure 5, by the check valve 60 on the inlet 34 side intake pipes 13 that are arranged at the present invention 30, prevent current adverse current in supply channel 14 and the present invention 30.
Whether the present invention 30 can reach the main key of effective control of pump 12 inflows and the mutual balanced effect of supply channel 14 water consumptions, tie up in whether can suitably cooperating with the pressure of storage pressure cylinder 20 and supply channel 14 in order to the elastic force size that promotes control piece 40 for the elastic element 42 of extension spring, and make under various different water consumption states, control piece 40 all can produce suitable displacement amount in sleeve pipe empty chambers 32 33, move to suitable height and position, regulate to be communicated with body 31 inlets 34 and to export the open area of 35 runner 39, so that the water consumption on the inflow of water pump 12 and the supply channel 14 cooperatively interacts.And because of the hydraulic press lift difference of all size, so pressure and flow status during its running are neither identical, therefore, the present invention 30 is provided with an adjustment element 70 in order to elastic element 42 elasticity coefficient that are adjusted into extension spring, so that the present invention 30 can cooperate the hydraulic press of all size and different lifts to use.
As shown in Figure 1, when control piece 40 is promoted by hydraulic pressure,, the elastic element 42 of extension spring saves elastic force downwards for being stretched.And as shown in Figure 2, when the present invention 30 is used with different size and lift hydraulic press, and when need adjusting the elasticity coefficient of elastic element 42, unscrew spiral shell and be contained in the bunching ring 81 of adjusting element 70 bottoms, by adjusting element 70 bottom axial elasticity groovings 72, make the elasticity expansion outwardly of its bottom, all trips 73 break away from sleeve pipe 33 annular grooves 331 in it, just can make into the adjustment element 70 of slide lid along sleeve pipe 33 upwards (or downwards) move, transfer long (or transferring short) upper end to be connected in to adjust that element 70 interfaces 71 tops extend goes up the length for the elastic element 42 of extension spring on the hook 43 down, to increase (or reducing) is the elasticity coefficient of the elastic element 42 of extension spring, when the elasticity coefficient of elastic element 42 is adjusted to desirable value, be loaded on the outside thread 74 of adjusting element 70 bottoms with bunching ring 81 spiral shells, by the elasticity grooving 72 of adjusting element 42 bottoms, tighten and adjust element 70 bottoms, its interior all trip 73 is sticked on the annular groove 331 of sleeve pipe 33 peripheries, to adjust element 70 and elastic element 42 is fixed in setting, to be adapted to the various lifts of hydraulic press, the setting of pressure.
When hydraulic press flow and pressure range are very big, as Fig. 2, Fig. 6, shown in Figure 7, unscrew bunching ring 82, by connecting base 311 opening end axial elasticity groovings 312, make the elasticity expansion outwardly of its opening end, all annular grooves 313 break away from sleeve pipe 33 trips 334 in it, rotating casing 33 in connecting base 311, adjust valve port 332 and the overlapping degree in body 31 runners, 39 cross sections that sleeve pipe 33 bottom extension 333 constitute, as shown in Figure 6, when valve port 332 and body 31 runners 39 cross sections whole when overlapping, by the flow maximum of runner 39.As shown in Figure 7, when reducing overlapping degree gradually, the flow by runner 39 then reduces gradually.When being adjusted to required overlapping degree, be loaded on connecting base 311 opening ends with bunching ring 82 spiral shells, axial elasticity grooving 312 by connecting base 311 opening ends, tighten connecting base 311 opening ends, its interior all annular groove 313 is sticked on the trip 334 of sleeve pipe 33 peripheries, makes between sleeve pipe 44 and the connecting base 311 and be fixed in setting.
The present invention 30 is by above elements combination, and size that can dual adjustment the present invention 30 control of pump 12 inflows to adapt to the hydraulic press of different flow and pressure, enlarges Applicable scope of the present invention.
Claims (4)
1, a kind of control valve of feedback regulating pressure difference type hydrualic press flow rate, it comprises body, control piece, elastic element and is connected in the elasticity adjustment element of elastic element; The body center upper portion is for constituting the sleeve pipe of cylindric empty chamber, and both sides, body bottom are provided with inlet and the outlet that is communicated with by the runner that is communicated with empty chamber; It is indoor that the control piece slip is arranged at the body sky, and make its end face be lower than the height of interface, and elastic element is arranged between control piece end face and the empty indoor top surface; It is characterized in that described sleeve pipe rotation is installed on the body top; Casing shoe is provided with and constitutes valve port and insert extension in the body runner.
2, the control valve of feedback regulating pressure difference type hydrualic press flow rate according to claim 1 is characterized in that being provided with rotary positioning structure between described body and the sleeve pipe.
3, the control valve of feedback regulating pressure difference type hydrualic press flow rate according to claim 2, it is characterized in that having the connecting base that upwards extends the fit sleeve pipe by body at described rotary positioning structure, establish several axial elasticity groovings in the connecting base opening end, week be provided with annular groove in it; Sleeve pipe is provided with the trip that engages with all annular grooves in the connecting base with connecting base suit place periphery.
4, the control valve of feedback regulating pressure difference type hydrualic press flow rate according to claim 3 is characterized in that being screwed with bunching ring outside described body connecting base; Body connecting base periphery is provided with outside thread; Bunching ring be provided with connecting base on external thread spiro fastening to tighten the internal thread of connecting base opening end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99121722A CN1108474C (en) | 1999-10-08 | 1999-10-08 | Flow control valve of feedback regulation pressure-difference hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99121722A CN1108474C (en) | 1999-10-08 | 1999-10-08 | Flow control valve of feedback regulation pressure-difference hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1292469A CN1292469A (en) | 2001-04-25 |
| CN1108474C true CN1108474C (en) | 2003-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99121722A Expired - Fee Related CN1108474C (en) | 1999-10-08 | 1999-10-08 | Flow control valve of feedback regulation pressure-difference hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108474C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752323B (en) * | 2013-12-27 | 2018-03-20 | 中芯国际集成电路制造(上海)有限公司 | A kind of semiconductor devices and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0452496A1 (en) * | 1989-09-30 | 1991-10-23 | Asahi Yukizai Kogyo Co., Ltd | Constant flow rate valve |
| US5105850A (en) * | 1991-07-22 | 1992-04-21 | Harris David M | Fluid fuse valve |
| JPH08226558A (en) * | 1994-12-22 | 1996-09-03 | Matsushita Electric Works Ltd | Constant flow valve device |
-
1999
- 1999-10-08 CN CN99121722A patent/CN1108474C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0452496A1 (en) * | 1989-09-30 | 1991-10-23 | Asahi Yukizai Kogyo Co., Ltd | Constant flow rate valve |
| US5105850A (en) * | 1991-07-22 | 1992-04-21 | Harris David M | Fluid fuse valve |
| JPH08226558A (en) * | 1994-12-22 | 1996-09-03 | Matsushita Electric Works Ltd | Constant flow valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1292469A (en) | 2001-04-25 |
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