CN201021727Y - A flow compensation valve - Google Patents
A flow compensation valve Download PDFInfo
- Publication number
- CN201021727Y CN201021727Y CNU2007201191213U CN200720119121U CN201021727Y CN 201021727 Y CN201021727 Y CN 201021727Y CN U2007201191213 U CNU2007201191213 U CN U2007201191213U CN 200720119121 U CN200720119121 U CN 200720119121U CN 201021727 Y CN201021727 Y CN 201021727Y
- Authority
- CN
- China
- Prior art keywords
- water
- waste water
- pressure
- flexible sheet
- valve body
- 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.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 143
- 239000002351 wastewater Substances 0.000 claims abstract description 90
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000004904 shortening Methods 0.000 claims description 5
- 230000000750 progressive effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 10
- 230000004907 flux Effects 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 description 48
- 239000012530 fluid Substances 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a flux compensation valve arranged on the waste water reverse-flow system pipeline, a water inlet channel communicated with the waste water outlet of the water filtration system is arranged on the valve body, in the inner cavity of the valve body, a control rod put inside the water inlet channel is arranged, the clearance between the control rod and the water inlet channel is formed into a waste water channel, the control rod can be moved following the pressure change of the water outlet, the moving distance of the control rod can cause that the length of the waste water channel is changed in inverse ratio following the pressure of the water outlet, or the moving distance of the control rod can cause that the area of the waste water channel is changed in direct ratio following the pressure of the water outlet, under the situation that the pressure of the water outlet is fluctuated, the flow rate entered the inner cavity of the flux compensation valve is adjusted to adapt to the pressure change of the pipeline, so as to cause the hydraulic resistance and the cross section area of the water inlet channel to be changed accordingly, thereby the invariable water resistance and stable waste water ratio of the waste water reverse-flow can be kept.
Description
[technical field]
The utility model relates to a kind of flow compensation valve, especially relates to a kind of flow compensation valve when being applied to return of waste water in the filtration system.
[background technique]
At present, in water treatment field,, can select for use R0 film or NF membrane, comprise the mineral substance filtering all impurity in the water if want to obtain purified water.But when leaching 1 liter of purified water, can produce the waste water (also claiming dense water) that 2-6 rises simultaneously, the impurity in the water be comprised that mineral substance takes away, otherwise the too high meeting of mineral concentration stops up R0 film or NF membrane, make it to lose efficacy by waste water.In filtration system, the ratio of waste water and purified water should be certain value, and this definite value is commonly referred to as the waste water ratio.It is to form fixing water resistance when waste water flow is crossed a pore, thereby forms fixing waste water ratio.Waste water than too high can waste water resource, waste water makes the mineral substance fouling easily and stops up filter membrane than too low.So waste water is also more constant than necessary choose reasonable.If will be return of waste water in water system, system's water pressure fluctuations can exert an influence to the waste water ratio.When system hydraulic pressure increased, under the effect of pressure, the water yield by R0 film or NF membrane can increase, and the waste water ratio can reduce; When system's hydraulic pressure reduced, the water yield by R0 film or NF membrane can reduce, and waste water is than increasing.As seen, the fluctuation of system's hydraulic pressure can influence the constant of waste water ratio, and therefore, system's hydraulic pressure and flow is stable particularly important in filtration system.
In the prior art, the technological scheme of eliminating the pipeline pressure influence of fluctuations generally is that the mode that adopts flexible sheet and taper valve core to combine is regulated pressure, as Chinese patent " equilibrated valve ", patent No. CN99214757.3, the applying date: 1999.07.01; Chinese patent " steady flow in pipe network amount distributing valve ", patent No. CN03243834.6, the applying date: 2003.03.27.In the said structure, generally be to adopt the water inlet of taper to cooperate with taper valve core, different pressure is created in the two ends of flexible sheet, when at one end hydraulic pressure is excessive, flexible sheet drives taper valve core and moves, make spool clog or leave the taper water inlet, regulate pressure, make the pressure at flexible sheet two ends keep balance by the size of regulating the water inlet passage.And, said structure all is to be applied in the inlet pipeline of open system, it is to regulate according to the size of pressure, when water inlet pressure increased, because pressure increases, the mobile valve port aisle spare that makes of control valve reduced, be that pressure and aisle spare are inversely proportional to, thereby pressure is reduced, make the waterexit end constant pressure, realize the function of decompression or pressure limiting.
And in the return of waste water of filtration system,, can only make the pressure balance of flexible sheet both sides as adopting said structure the constant of balance and flow that keep-up pressure, and can't realize the stable of waste water water resistance and flow system flow.Simultaneously, because water inlet and water outlet are worked as system pressure not at same cavity, when just water outlet pressure was big, the such scheme of prior art can make flexible sheet drive taper valve core and shift to water inlet that cause the water inlet Flow area to reduce, water resistance increases; System pressure, just water outlet pressure hour can make again flexible sheet drive taper valve core and leave water inlet that cause the water inlet Flow area to increase, water resistance reduces, and can not provide stable water resistance and flow for return of waste water.Therefore, for filtration system, adopt existing pressure balance valve arrangement can not keep constant waste water ratio.
[model utility content]
The utility model technical issues that need to address are the defectives that overcome above-mentioned prior art, provide a kind of and can provide the flow-compensated device of stablizing water resistance and stable wastewater flow by the return of waste water to filtration system under the situation of discharge pressure fluctuation.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions:
A kind of flow compensation valve, it comprises a valve body, described valve body contains an inner chamber, offer the water inlet and the water outlet that can be communicated with on the valve body with its inner chamber, it is characterized in that: be provided with a flexible sheet in the described body cavity, on inner chamber is divided into, following two chambers, advance, water inlet all is opened in the valve body epicoele, in described body cavity, offer the water channel of going into that links to each other with water inlet, controlling rod one end places describedly goes in the water channel, itself and the gap of going between the water channel form waste water tunnel, and described controlling rod is one can make the length of waste water tunnel increase or reduce corresponding shortening or lengthening with water outlet pressure, or the waste water tunnel area increases with water outlet pressure or corresponding increase or the mobile member that reduces when reducing.
Described to go into water channel be a clear opening, and controlling rod is a tapered rod, and its conical surface tapering off property from bottom to top is progressive, and length extends in the water channel;
Further as the utility model:
Can be arranged with spring on the described controlling rod;
Can be provided with supporting plate under the described flexible sheet;
Flexible sheet can be passed through in described controlling rod lower end, fixedlys connected with the supporting plate that places the flexible sheet below;
Can be provided with spring under the described supporting plate, the spring lower end is fixed in the valve body bottom;
Described spring can place on the adjustable spring pedestal of valve body bottom.
The utility model is regulated the variation that the flow that enters flow-compensated valve insertion comes adaptive loine pressure by a flow recuperation valve is set on the return of waste water pipeline, can guarantee the constant waste water ratio of water resistance and system that pipeline is stable.Adopt technique scheme, when system's hydraulic pressure increases, pressure in the valve body increases, water resistance to water inlet will increase, wastewater flow will reduce, but flexible sheet drove controlling rod and moved to the direction away from water inlet this moment, make that cavity volume and cross section of fluid channel are long-pending to increase, pressure reduces, so stoped the increase of water inlet water resistance and the minimizing of wastewater flow.Otherwise, when the system water pressure drop is low, hydraulic pressure reduces in the valve body, the water resistance of water inlet also reduces, wastewater flow will increase, but flexible sheet drove controlling rod and moved to the direction near water inlet this moment, make that cavity volume and cross section of fluid channel are long-pending to reduce, pressure increases, and has stoped the reduction of water inlet water resistance and the increase of wastewater flow.Therefore, adopt the utility model can under the situation of water outlet pressure surge, make return of waste water keep stable water resistance and constant waste water ratio.
[description of drawings]
Fig. 1 is the utility model embodiment one a generalized section;
Fig. 2 is the utility model embodiment two a generalized section;
Fig. 3 is the utility model embodiment three a generalized section;
Fig. 4 is the utility model embodiment four a generalized section.
Wherein:
The 1-valve body 11-12-of upper chamber lower chambers
2-water inlet 21-goes into water channel
The 3-water outlet
4-flexible sheet 41-diaphragm pressure ring
The adjustable spring pedestal of 5-supporting plate 51-supporting plate spring 52-
6-controlling rod 61-spring
[embodiment]
The utility model provides a kind of waste-water return-flow system flow recuperation valve that is applied in the existing water purification treatment system, it mainly is the variation that enters the next adaptive loine pressure of flow of flow-compensated valve insertion by adjusting, to guarantee the stable constant waste water ratio of water resistance and system of pipeline.Its concrete structure is to be provided with the water outlet of going into water channel and being communicated with the filtration system inlet that is communicated with the filtration system wastewater outlet on flow-compensated valve body, at body cavity, be provided with a controlling rod, place in the water channel, controlling rod and the gap of going between the water channel form waste water tunnel, filtration system waste water flows into flow-compensated valve insertion by this waste water tunnel, flows out through water outlet.Controlling rod described in the utility model can move with the water outlet variation in pressure, thereby controlling rod and the relative position of going into water channel are changed, and corresponding waste water tunnel changes thereupon.When water outlet pressure increased, the moving of controlling rod can make the corresponding shortening of length of waste water tunnel, and water resistance reduces, and flow increases; When water outlet pressure reduced, the moving of controlling rod can make the corresponding increase of length of waste water tunnel, and water resistance increases, and flow reduces, and promptly the length of waste water tunnel is with the variation that is inversely proportional to of water outlet pressure; Perhaps, when water outlet pressure increased, the moving of controlling rod can make the corresponding increase of aisle spare of waste water tunnel, and water resistance reduces, and flow increases; When water outlet pressure reduced, the moving of controlling rod can make the corresponding minimizing of area of waste water tunnel, and water resistance increases, flow reduces, be the waste water tunnel area with the variation that is directly proportional of water outlet pressure, thereby make filtration system wastewater outlet constant flow, and then obtain constant waste water ratio.
Below in conjunction with drawings and Examples the utility model structure is further described.
Embodiment one:
As shown in Figure 1, present embodiment one comprises valve body 1, described valve body 1 offers inner chamber, offer water inlet 2, the water outlet 3 that can be communicated with on the valve body 1 with this inner chamber, in described body cavity, offer link to each other with water inlet 2 go into water channel 21, be provided with a flexible sheet 4 in the described inner chamber, its periphery be fixed on valve body 1 inner chamber set on the diaphragm pressure ring 41, inner chamber is isolated into upper chamber 11 and lower chambers 12, it is described that to go into water channel 21 be an elongated straight through hole, water inlet 2, go into water channel 21, water outlet 3 all places valve body 1 epicoele.In the described upper chamber 11, be provided with a taper controlling rod 6, its upper end places in the water channel 21, the conical surface tapering off property from bottom to top is progressive, length extends in the water channel 21, and goes into the gap formation waste water tunnel between the water channel 21, and the lower end is positioned at flexible sheet 4 tops.Be arranged with spring 61 on the described controlling rod 6, these spring 61 1 ends are fixed on the valve body 1, another termination controlling rod 6 bottoms.Behind the water process filtration cycle system purification, waste water will flow back into water system by water outlet 3 by water inlet 2 in waste water tunnel flows into upper chamber 11, filter once more.Because return of waste water is to carry out in a closed-loop system, water outlet 3 has certain pressure, therefore, present embodiment is arranged at water inlet 2 and water outlet 3 on the same cavity, is an elongated straight through hole owing to go into water channel 21, and controlling rod 6 has certain tapering, the controlling rod 6 of taper is in water inlet 2 when mobile, the gap that can make controlling rod 6 and go between the water channel 21 changes, and this variation increases and increases along with water outlet 3 pressure, and both are proportional.Like this, can change the entry aisle spare, regulate the resistance of water, thereby the flow that may command waste water enters keeps the stable of flow, has realized the purpose of this utility model by moving of controlling rod 6.
The present embodiment working principle is as follows:
When the pressure of water outlet 3 equaled setting value, the elastic force of flexible sheet 4 self and the hydraulic pressure of upper chamber 11 kept balance, the hydraulic pressure maintenance balance that the elastic force of spring 61 and controlling rod 6 bear, and flexible sheet 4 and controlling rod 6 do not have displacement.
Work as system pressure, when just the hydraulic pressure of water outlet 3 increases, will cause the fluid pressure of valve body upper chamber 11 to increase, the water resistance at water inlet 2 places also will increase, and flow will reduce.But this moment, the fluid pressure of valve body upper chamber 11 will promote flexible sheet 4 and move downward, the space of upper chamber 11 is increased, hydraulic action is on controlling rod 6 simultaneously, promoting its resistance that overcomes controlling rod spring 61 moves downward, because controlling rod 6 is a cone-shaped component, its outer surface and the slit of going between the water channel 21 increase in the process that moves downward gradually, the cross-section area that is waste water tunnel increases gradually, flow increases gradually, water resistance reduces, thus stoped the minimizing of wastewater flow, thus keep the water resistance and the waste water ratio of system stability.
Work as system pressure, when just the hydraulic pressure of water outlet 3 reduces, cause the fluid pressure of valve body upper chamber 11 to decrease, the water resistance of water inlet 2 will reduce, and wastewater flow will increase.But this moment, the elastic force of flexible sheet 4 self is greater than hydraulic pressure, move on the flexible sheet 4, the resistance that push lever 6 overcomes spring 61 moves up, and moves past in the journey on controlling rod 6, dwindle gradually with the slit of going into water channel 21, the cross-section area that is runner reduces, and waste water flow gradually reduces, and water resistance increases, so stoped the increase of wastewater flow, thereby kept the water resistance and the waste water ratio of system stability.
Embodiment two:
As shown in Figure 2, present embodiment two valve bodies 1, controlling rod 6 structures are identical with embodiment one, and different is, present embodiment is provided with a supporting plate 5 that can contact with flexible sheet 4 in lower chambers 12, place the below of flexible sheet 4, supporting plate 5 is fixed on the valve body 1 by supporting plate spring 51.
When normal state, the pretensioning of supporting plate spring 51 gives the holding power that flexible sheet 4 makes progress by supporting plate 5, this holding power can be in state of equilibrium with the hydraulic pressure that flexible sheet 4 bears, the hydraulic pressure that the elastic force of spring 61 and controlling rod 6 bear keeps balance, and flexible sheet 4 and controlling rod 6 do not have displacement.
During the hydraulic pressure unusual fluctuation, the working principle of present embodiment is identical with embodiment one.
The elastic force that present embodiment transmits by supporting plate 5 with supporting plate spring 51 has replaced the elastic force of flexible sheet among the embodiment one 4 self, has protected flexible sheet 4 well.
Embodiment three:
As shown in Figure 3, present embodiment three valve bodies 1 are identical with embodiment one, two, controlling rod 6 also is a tapered rod, different is, the below of flexible sheet 4 is provided with supporting plate 5, the upper end of controlling rod 6 places water channel 21, and itself and the slit of going between the water channel 21 are tapering, and it is affixed with supporting plate 5 that flexible sheet 4 is passed through in the lower end.Along with controlling rod 6 moving up and down in going into water channel 21, itself and the slit of going between the water channel 21 also change thereupon, thereby regulate water resistance and flow.
The present embodiment working principle is as follows:
When the pressure of water outlet 3 equaled setting value, the elastic force of flexible sheet 4 self and the hydraulic pressure of upper chamber 11 kept balance, and flexible sheet 4 and controlling rod 6 do not have displacement.
When the pressure increase of water outlet 3 causes the fluid pressure of valve body upper chamber 11 to increase, the water resistance at water inlet 2 places also will increase, and flow will reduce.But this moment, the fluid pressure of valve body upper chamber 11 will promote flexible sheet 4 and move downward, and the space of upper chamber 11 increases, pressure reduces, and has stoped the increase of water inlet 2 water resistances, simultaneously, moving down of flexible sheet 4, to promote supporting plate 5 and move down, and then drive controlling rod 6 and move downward controlling rod 6 upper ends and the slit increase of going between the water channel 21, the cross-section area that is the water inlet runner increases, flow increases, and has stoped the minimizing of wastewater flow, thereby has kept stable water resistance and waste water ratio.
Work as system pressure, when just the hydraulic pressure of water outlet 3 reduced, the fluid pressure of valve body upper chamber 11 decreased, and the water resistance of water inlet 2 will reduce, and wastewater flow will increase.But this moment, the elastic force of flexible sheet 4 self will be greater than hydraulic pressure, moves on the flexible sheet 4, and the resistance that push lever 6 overcomes spring 61 moves up.Reduce in the space of upper chamber 11 on the one hand, and pressure increases, and has stoped the minimizing of water inlet 2 water resistances; Move the slit that makes it and go into water channel 21 on the while controlling rod 6 and dwindle, promptly the cross-section area of runner reduces, and wastewater flow reduces, and has stoped the increase of wastewater flow, thereby has kept stable water resistance and waste water ratio.
Embodiment four:
Present embodiment three has utilized the elastic force of flexible sheet 4 self equally, and in order to protect flexible sheet 4, present embodiment supporting plate 5 is fixed on the valve body 1 by supporting plate spring 51.
When normal state, the pretensioning of supporting plate spring 51 gives the holding power that flexible sheet 4 makes progress by supporting plate 5, and the hydraulic pressure that hydraulic pressure that this holding power and flexible sheet 4 bear and controlling rod 6 bear is in state of equilibrium, and flexible sheet 4 and controlling rod 6 do not have displacement.
When the pressure increase of water outlet 3 causes the fluid pressure of valve body upper chamber 11 to increase, the water resistance at water inlet 2 places also will increase, and flow will reduce.But this moment, the elastic force promotion flexible sheet 4 that the fluid pressure of valve body upper chamber 11 will overcome supporting plate spring 51 moves downward, the space of upper chamber 11 increases, pressure reduces, stoped the increase of water inlet 2 water resistances, simultaneously, moving down of flexible sheet 4, to promote supporting plate 5 and move down, and then drive controlling rod 6 moves downward the slit increase between controlling rod 6 upper ends and the water inlet 2, the cross-section area that is the water inlet runner increases, flow increases, and has stoped the minimizing of wastewater flow, thereby has kept stable water resistance and waste water ratio.
Work as system pressure, when just the hydraulic pressure of water outlet 3 reduced, the fluid pressure of valve body upper chamber 11 decreased, and the water resistance of water inlet 2 will reduce, and wastewater flow will increase.When the elastic force of supporting plate spring 51 greater than upper chamber 11 in during hydraulic pressure, flexible sheet 4 moves under the contacting of supporting plate 5, push lever 6 moves up.The space of upper chamber 11 is reduced, and pressure increases, and has stoped the minimizing of water inlet 2 water resistances; Move the slit that makes it and go into water channel 21 on the while controlling rod 6 and dwindle, promptly the cross-section area of runner reduces, and wastewater flow reduces, and has stoped the increase of wastewater flow, thereby has kept stable water resistance and waste water ratio.
The elastic force that present embodiment transmits by supporting plate 5 with supporting plate spring 51 has replaced the elastic force of flexible sheet among the embodiment three 4 self, has protected flexible sheet 4 well, the performance requirement of flexible sheet 4 is reduced, so reduced cost of production.
Embodiment five:
On embodiment two and four basis, the utility model can also carry out following improvement:
As Fig. 2 and shown in Figure 4, supporting plate spring 51 is not directly to be fixed on the valve body 1, but is fixed on the valve body 1 by adjustable spring pedestal 52.By regulating adjustable spring pedestal 52, can change the pretensioning of supporting plate spring 51, just change the holding power that gives flexible sheet 4 and controlling rod 6 under the normal state by supporting plate 5.This holding power is in case change can make flexible sheet 4 and controlling rod 6 produce the critical hydraulic pressure of displacements, and just the hydraulic pressure of aforementioned normal state will change, and the change of normal hydraulic pressure value can make the waste water ratio change.So, also can reach the purpose of reconciling the waste water ratio by regulating adjustable spring pedestal 52.
In addition, when controlling rod 6 is straight-bar, though itself and the gap of going between the water channel 21 are constant, but when increasing along with water outlet 3 pressure, controlling rod 6 moves down, itself and go between the water channel 21 the corresponding shortening of waste water tunnel length that forms be elongated hole owing to go into water channel 21, the corresponding shortening of waste water tunnel can cause the reduction of water inlet 2 water resistances, the corresponding increase of flow; On the contrary, when water outlet 3 pressure reduce, controlling rod 6 will move up, itself and go between the water channel 21 the corresponding lengthening of waste water tunnel length that forms, the increase of waste water tunnel length can cause the increase of water inlet 2 water resistances, the corresponding reduction of flow, same can regulate wastewater flow, thus keep stable water resistance and waste water ratio.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. flow compensation valve, it comprises a valve body, described valve body contains an inner chamber, offer the water inlet and the water outlet that can be communicated with on the valve body with its inner chamber, it is characterized in that: be provided with a flexible sheet in the described body cavity, on inner chamber is divided into, following two chambers, advance, water inlet all is opened in the valve body epicoele, in described body cavity, offer the water channel of going into that links to each other with water inlet, controlling rod one end places describedly goes in the water channel, itself and the gap of going between the water channel form waste water tunnel, and described controlling rod is one can make the length of waste water tunnel increase or reduce corresponding shortening or lengthening with water outlet pressure, or the waste water tunnel area increases with water outlet pressure or corresponding increase or the mobile member that reduces when reducing.
2. a kind of flow compensation valve as claimed in claim 1 is characterized in that: described to go into water channel be a clear opening, and controlling rod is a tapered rod, and its conical surface tapering off property from bottom to top is progressive, and length extends in the water channel.
3. a kind of flow compensation valve as claimed in claim 1 or 2 is characterized in that: be arranged with spring on the described controlling rod.
4. a kind of flow compensation valve as claimed in claim 1 or 2 is characterized in that: described flexible sheet below is provided with supporting plate.
5. a kind of flow compensation valve as claimed in claim 1 or 2 is characterized in that: flexible sheet is passed through in described controlling rod lower end, fixedlys connected with the supporting plate that places the flexible sheet below.
6. a kind of flow compensation valve as claimed in claim 3 is characterized in that: described flexible sheet below is provided with supporting plate.
7. a kind of flow compensation valve as claimed in claim 4 is characterized in that: described supporting plate has spring, and the spring lower end is fixed in the valve body bottom.
8. a kind of flow compensation valve as claimed in claim 5 is characterized in that: described supporting plate has spring, and the spring lower end is fixed in the valve body bottom.
9. as claim 7 or 8 described a kind of flow compensation valves, it is characterized in that: described spring places on the adjustable spring pedestal of valve body bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201191213U CN201021727Y (en) | 2007-03-26 | 2007-03-26 | A flow compensation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201191213U CN201021727Y (en) | 2007-03-26 | 2007-03-26 | A flow compensation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021727Y true CN201021727Y (en) | 2008-02-13 |
Family
ID=39089136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201191213U Expired - Lifetime CN201021727Y (en) | 2007-03-26 | 2007-03-26 | A flow compensation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021727Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692044A (en) * | 2018-06-04 | 2018-10-23 | 江苏天域阀业制造有限公司 | A kind of valve reducing compression shock |
| CN113110626A (en) * | 2021-04-28 | 2021-07-13 | 北京航空航天大学 | Rectangular transparent adjustable venturi |
-
2007
- 2007-03-26 CN CNU2007201191213U patent/CN201021727Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692044A (en) * | 2018-06-04 | 2018-10-23 | 江苏天域阀业制造有限公司 | A kind of valve reducing compression shock |
| CN113110626A (en) * | 2021-04-28 | 2021-07-13 | 北京航空航天大学 | Rectangular transparent adjustable venturi |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070326 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |