CN2846936Y - Flow self control valve - Google Patents
Flow self control valve Download PDFInfo
- Publication number
- CN2846936Y CN2846936Y CN 200520110553 CN200520110553U CN2846936Y CN 2846936 Y CN2846936 Y CN 2846936Y CN 200520110553 CN200520110553 CN 200520110553 CN 200520110553 U CN200520110553 U CN 200520110553U CN 2846936 Y CN2846936 Y CN 2846936Y
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- CN
- China
- Prior art keywords
- valve body
- flow
- valve
- diaphragm
- urceolus
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- Expired - Fee Related
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Abstract
The utility model relates to a flow self control valve, which comprises a valve body, a press cover and a valve rod, wherein the press cover is connected with the upper end of the valve body and the valve rod penetrates out of the center hole of a valve cover. A flow control assembly is arranged in the valve body, and a control channel is arranged between an inlet of the valve body and the bottom end of the flow control assembly, which results in that the flow passing area of the flow control assembly is in inverse proportion with the pressure value of fluid medium flowing into the inlet of the valve body. The utility model has the advantages that once a basic flow is well adjusted by the valve rod, when the fluid pressure of a system is fluctuated, the fluctuation can be applied on the lower end of a diaphragm of the flow control assembly via the control channel and can drive the central part of the upper end of the diaphragm to move axially; thus, the flow passing area of a flow passing hole on the lower part of a flow passing cylinder is changed, the purpose of automatically controlling a steady flow is achieved, the phenomena of imbalanced water system of each region and energy waste or insufficient heat or cold supplying caused by the pressure change of the system are avoided and the trouble and possibility of damage to the balance of the system caused by artificial debugging can be avoided.
Description
Technical field
The utility model relates to a kind of Fluid valve, specifically is a kind of flow Self controlling valve, is mainly used on the end-equipment of heating and air-conditioning system, with the water flow of control by end-equipment, reaches the purpose of constant control area temperature and energy saving.
Background technique
Existing valve does not have the function of the fluid flow that flows through valve body being carried out dynamic adjustments.In case the pressure of current fluctuates, the size of the water flow in the pipeline just changes thereupon, causes the too high or too low for temperature of heating (cold) space, causes energy waste or heating (cold) deficiency; Also can cause the imbalance of each regional water system.In order to alleviate the influence of this water pressure fluctuations, need debug system, not only trouble expends the plenty of time; Artificial adjusting may damage system balancing.
Summary of the invention
The purpose of this utility model just provides a kind of flow Self controlling valve, to solve the problem that can not carry out dynamic adjustments to the fluid flow that flows through valve body that prior art exists.
The technical solution of the utility model is: comprise valve body, gland and valve rod, gland is connected the upper end of valve body, valve rod passes the center hole of valve gap, be provided with the screw thread that cooperatively interacts between the two, in described valve body, be provided with flow control assembly, between the bottom of the inlet of valve body and described flow control assembly, be provided with control channel, so that the force value of the area of passage of flow control assembly and the flowing medium that flows into the valve body inlet is inversely proportional to.
Described flow control assembly comprises lower end cap, diaphragm, overcurrent tube, diaphragm spring and adjustable lever, and lower end cap is connected the lower end of described valve body central authorities, and the inboard central authorities of this lower end cap of word are provided with flange, and the cavity of these flange central authorities is connected with described control channel; The overcurrent tube is made of urceolus and guide cylinder, the bottom and the upper end of urceolus are equipped with flowing hole, the coaxial center upper portion that is located in urceolus of guide cylinder, connect by radial rib between the two, the lower end of urceolus is enclosed within outside the flange of described lower end cap, is provided with seal ring between the outside and the valve body import and export between the flowing hole up and down at urceolus; Described diaphragm is circular, and its external diameter cooperates with the urceolus internal diameter of described overcurrent tube, and this circular axial cross section is approximately the M structure, and the upper end central authorities of this M structure are provided with the spring seat of protrusion, and the edge that protrude this M structure upper end is a circular shape; One end of the spring seat junctional membrane flat spring of described diaphragm, the other end of this diaphragm spring stretch in the guide cylinder of described overcurrent tube and by adjustable lever and are connected with the inner of described valve rod; The lower end that connects a regulating sleeve in the upper end of described overcurrent tube urceolus, its upper end is connected with described gland center hole.
Upper end at described diaphragm spring is provided with loose collar, and the internal diameter of this loose collar and external diameter are slidingly matched with the external diameter of described adjustable lever and the internal diameter of guide cylinder respectively, is provided with axial key that is slidingly matched mutually and groove between described adjustable lever and this loose collar; Be provided with Regulation spring between the upper end of this loose collar and the upper end of adjustable lever.
Be provided with a limiting bracket in the upper end of described diaphragm, this limiting bracket is made of with several pawls that are connected in the top sleeve, and the sleeve flip sleeve is outside described guide cylinder.
Outer end at described valve rod is provided with driving mechanism.
Described driving mechanism comprises support, connecting rod, nut and electric actuator, the lower end of support is fastened on the upper end of described gland by nut, the upper end of support is connected with the electric actuator shell, and connecting rod is connected between the clutch end of described valve rod outer end and electric actuator.
The utility model has the advantages that: in case after regulating bare flow by valve rod, hydrodynamic pressure appearance fluctuation when system, this fluctuation is applied to the diaphragm lower end of flow control assembly by control channel, and the middle body of the upper end of driven diaphragm moves axially, thereby changed the area of passage of the flowing hole of overcurrent tube bottom, reached the purpose of automatic control regime flow, avoided because the variation of system pressure causes energy waste or heating (cold) is not enough and the imbalance of each regional water system, avoided the trouble of artificial debugging and the destruction that may cause system balancing.
Description of drawings
Fig. 1 is a general structure cross-sectional schematic of the present utility model;
Fig. 2 is the decomposition texture schematic representation of Fig. 1;
Fig. 3 is the sectional view of diaphragm of the present utility model;
Fig. 4 is the form structure schematic representation of overcurrent tube of the present utility model;
Fig. 5 is the worm's eye view of Fig. 4;
Fig. 6 is the A-A sectional view of Fig. 4;
Fig. 7 is the structural representation of the utility model limiting bracket;
Fig. 8 is the plan view of Fig. 7;
Fig. 9 is the structural representation of the utility model adjustable lever;
Figure 10 is the plan view of Fig. 9.
Embodiment
Referring to Fig. 1～Figure 10, the utility model comprises valve body 11, gland 14, valve rod 13 and flow control assembly.Gland 14 is by being threaded in the upper end of valve body 11, and valve rod 13 passes the center hole of valve gap 14, is provided with the screw thread that cooperatively interacts between the two.Control unit is installed in the inlet 25 of described valve body 11 and the inside between the outlet 24, between the bottom of the inlet 25 of valve body 11 and described flow control assembly, be provided with control channel 20 and 22, so that the force value of the area of passage of flow control assembly and the flowing medium that flows into valve body inlet 25 is inversely proportional to.
Described flow control assembly comprises lower end cap 2, diaphragm 3, overcurrent tube 4, diaphragm spring 7, limiting bracket 6 and adjustable lever 9, lower end cap 2 is connected the lower end of described valve body 11 central authorities, the inboard central authorities of this lower end cap are provided with flange 21, and the cavity of these flange 21 central authorities is connected with described control channel.
Described diaphragm 3 is circular, its external diameter cooperates with urceolus 48 internal diameters of described overcurrent tube, this circular axial cross section is approximately the M structure, and the upper end central authorities of this M structure are provided with the spring seat 31 of protrusion, and the edge that protrude this M structure upper end is the annulus 32 (referring to Fig. 3) of circular shape.The lower end of the spring seat 31 junctional membrane flat springs 7 of diaphragm 3, the upper end of this diaphragm spring 7 are stretched in the guide cylinder 44 of described overcurrent tube and by adjustable lever 9 and are connected (tip 91 on adjustable lever 9 tops heads into the corresponding awl in valve rod 13 lower ends and cheats interior) with the inner of described valve rod 13.Connect the lower end of regulating sleeve 12 in the upper end of described overcurrent tube urceolus 48, the upper end of this regulating sleeve 12 is connected with described gland 14 center holes.
Be provided with limiting bracket 6 in the upper end of described diaphragm 3, this limiting bracket is made of with several the pawls 61 that are connected in the top sleeve 62, and sleeve 62 flip sleeves are outside described guide cylinder 44.
Be provided with loose collar 8 in the upper end of described diaphragm spring 7, the internal diameter of this loose collar 8 and external diameter are slidingly matched with the external diameter of described adjustable lever 9 and the internal diameter of guide cylinder 44 respectively, are provided with axial key that is slidingly matched mutually and groove 93 between described adjustable lever 9 and this loose collar 8; Be provided with Regulation spring 10 between the flange 91 of the upper end of the upper end of this loose collar 8 and adjustable lever 9.
Valve rod of the present utility model can adopt manual tune, also can be provided with driving mechanism in the upper end of described valve rod 13.An embodiment of this driving mechanism comprises support 15, connecting rod 18, nut 16 and electric actuator 19, the lower end of support 15 is fastened on the upper end of described gland 14 by nut 16, the upper end of support 15 is connected with electric actuator 19 shells, and connecting rod 18 is connected between the clutch end of the upper end of described valve rod 13 and electric actuator 19.
The utility model is when work, the flowing medium of system flows into from the inlet 25 of valve body 11, order flows out from the outlet 24 of valve body at last through the gap between flowing hole (gap) 41, urceolus 48 and the guide cylinder on overcurrent tube urceolus 48 tops and the flowing hole 43 of urceolus bottom.When hydrodynamic pressure increases, this pressure is delivered to the lower end of diaphragm 3 by control channel 20 and 22, promote the stretching, extension that moves up of diaphragm 3 middle parts, stretch the flowing hole 43 that rear film 3 has blocked part overcurrent tube, its area of passage is reduced, flow reduces, and reaches balance at last, realizes the automatic control of flow.Vice versa, repeats no more.
Claims (6)
1. flow Self controlling valve, comprise valve body, gland and valve rod, gland is connected the upper end of valve body, valve rod passes the center hole of valve gap, be provided with the screw thread that cooperatively interacts between the two, it is characterized in that: in described valve body, be provided with flow control assembly, between the bottom of the inlet of valve body and described flow control assembly, be provided with control channel, so that the force value of the area of passage of flow control assembly and the flowing medium that flows into the valve body inlet is inversely proportional to.
2. flow Self controlling valve according to claim 1, it is characterized in that: described flow control assembly comprises lower end cap, diaphragm, overcurrent tube, diaphragm spring and adjustable lever, lower end cap is connected the lower end of described valve body central authorities, the inboard central authorities of this lower end cap of word are provided with flange, and the cavity of these flange central authorities is connected with described control channel; The overcurrent tube is made of urceolus and guide cylinder, the bottom and the upper end of urceolus are equipped with flowing hole, the coaxial center upper portion that is located in urceolus of guide cylinder, connect by radial rib between the two, the lower end of urceolus is enclosed within outside the flange of described lower end cap, is provided with seal ring between the outside and the valve body import and export between the flowing hole up and down at urceolus; Described diaphragm is circular, and its external diameter cooperates with the urceolus internal diameter of described overcurrent tube, and this circular axial cross section is approximately the M structure, and the upper end central authorities of this M structure are provided with the spring seat of protrusion, and the edge that protrude this M structure upper end is a circular shape; One end of the spring seat junctional membrane flat spring of described diaphragm, the other end of this diaphragm spring stretch in the guide cylinder of described overcurrent tube and by adjustable lever and are connected with the inner of described valve rod; The lower end that connects a regulating sleeve in the upper end of described overcurrent tube urceolus, its upper end is connected with described gland center hole.
3. flow Self controlling valve according to claim 2, it is characterized in that: the upper end at described diaphragm spring is provided with loose collar, the internal diameter of this loose collar and external diameter are slidingly matched with the external diameter of described adjustable lever and the internal diameter of guide cylinder respectively, are provided with axial key that is slidingly matched mutually and groove between described adjustable lever and this loose collar; Be provided with Regulation spring between the upper end of this loose collar and the upper end of adjustable lever.
4. flow Self controlling valve according to claim 2 is characterized in that: be provided with a limiting bracket in the upper end of described diaphragm, this limiting bracket is made of with several pawls that are connected in the top sleeve, and the sleeve flip sleeve is outside described guide cylinder.
5. flow Self controlling valve according to claim 1 is characterized in that: the outer end at described valve rod is provided with driving mechanism.
6. flow Self controlling valve according to claim 5, it is characterized in that: described driving mechanism comprises support, connecting rod, nut and electric actuator, the lower end of support is fastened on the upper end of described gland by nut, the upper end of support is connected with the electric actuator shell, and connecting rod is connected between the clutch end of described valve rod outer end and electric actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110553 CN2846936Y (en) | 2005-06-29 | 2005-06-29 | Flow self control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110553 CN2846936Y (en) | 2005-06-29 | 2005-06-29 | Flow self control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846936Y true CN2846936Y (en) | 2006-12-13 |
Family
ID=37512360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520110553 Expired - Fee Related CN2846936Y (en) | 2005-06-29 | 2005-06-29 | Flow self control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846936Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929574A (en) * | 2010-09-19 | 2010-12-29 | 卓旦春 | Dynamic balance motor-driven pressure-difference valve |
| CN105546188A (en) * | 2016-01-25 | 2016-05-04 | 苏州巨瀚阀门有限公司 | Flow self-adjusting valve |
| CN112610740A (en) * | 2020-12-23 | 2021-04-06 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
-
2005
- 2005-06-29 CN CN 200520110553 patent/CN2846936Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929574A (en) * | 2010-09-19 | 2010-12-29 | 卓旦春 | Dynamic balance motor-driven pressure-difference valve |
| CN105546188A (en) * | 2016-01-25 | 2016-05-04 | 苏州巨瀚阀门有限公司 | Flow self-adjusting valve |
| CN112610740A (en) * | 2020-12-23 | 2021-04-06 | 江苏科技大学 | Mechanical self-operated constant flow control combined device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |