CN2418328Y - Flow control valve - Google Patents
Flow control valve Download PDFInfo
- Publication number
- CN2418328Y CN2418328Y CN 00231495 CN00231495U CN2418328Y CN 2418328 Y CN2418328 Y CN 2418328Y CN 00231495 CN00231495 CN 00231495 CN 00231495 U CN00231495 U CN 00231495U CN 2418328 Y CN2418328 Y CN 2418328Y
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- hole
- valve
- automatic
- guide sleeve
- diaphragm
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- Expired - Fee Related
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Abstract
The utility model relates to an improvement of a flow quantity control device in warming and heating equipment, which comprises a valve body 1, a hand-operated regulating valve 3, and an automatic regulating valve which is coaxially provided with the hand-operated regulating valve 3. The utility model is characterized in that primary members of the automatic regulating valve are arranged in a diaphragm inner cavity 9, and a guide sleeve 15 which is arranged in the diaphragm inner cavity 9 is tightly matched with the inner circle surface of the diaphragm inner cavity 9; the upper end of a central through hole of the guide sleeve 15 is matched with the outer circle surface of an automatic valve flap 17 in a sliding mode, the lower end of the central through hole of the guide sleeve 15 is matched with the outer diameter of an automatic valve rod 14 in a sliding mode, and the automatic valve rod 14 is penetrated in the central through hole of the guide sleeve 15; a spring 16 is positioned between the guide sleeve 15 and a spring seat 12. The utility model has the advantages of simple structure, light weight, and low cost. The overall dimension of the valve is greatly reduced.
Description
The utility model belongs to heating, heat supply process field, relates to the improvement to flow control device in heating, the heating equipment.
Be used to now to heat, the flow control device of heating equipment, modal have following two kinds: the self-operated flow regulator that the first is introduced from Germany, the V130D05 type self-operated flow regulator that for example Sino-German joint venture " Anshan IWK regulator Co., Ltd " produces, its typical structure as shown in Figure 1.A upper end-hole manual modulation valve 3 is installed, is manually set flow with valve body 1 of water-inlet cavity 4 and water chamber 5.Lower end mouth at valve body 1 is installed an automatic balancing valve 23 that has bellows 28, it and manual modulation valve 3 coaxial installations, and balance Control Scheme is set flow.The diaphragm that is connected with automatic valve rod is clamped between membrane cover 24 and the following membrane cover 25.It is diaphragm exocoel 8 that diaphragm surrounds the chamber that forms with following membrane cover 25, and this chamber is communicated with water-inlet cavity 4 by external PRESSURE PIPE 27.It is diaphragm inner chamber 9 that diaphragm and last membrane cover 24 surround the chamber that forms, and it communicates with automatic flap upper chamber by external PRESSURE PIPE 26.The working principle of this self-operated flow regulator and working procedure are known already, do not do repetition at this.The advantage of this self-operated flow regulator is not need additionaling power, promptly can eliminate system's residual pressure head automatically, guarantees that Flow-rate adjustment is constant.But it adopts sylphon seal, complex structure, and volume is big, and therefore the cost height is difficult to promote the use of.
Domestic most popular flow regulator is second kind of valve at present, " liking the energy board " self-operated flow controller that for example environment protection energy-saving equipment factory of oil-piping power industry parent company produces in Langfang, effluent north, and its structural principle is seen Fig. 2.On the valve body 1 that has water-inlet cavity 4 and water chamber 5, an automatic regulating valve that has diaphragm and two automatic flaps 30 is installed, balance Control Scheme is set flow.Manual modulation valve 3 is installed in the automatic regulating valve next door abreast, manually sets flow.Diaphragm inner chamber 9 communicates with the chamber in automatic flap 30 outlet ports, and diaphragm exocoel 8 is communicated with water chamber 5 by the back-pressure hole 29 of valve body 1 inside.The main member of automatic regulating valve is installed in the diaphragm exocoel 8.This valve has been cancelled the sylphon seal structure, has reduced cost, equally can dependable flow the precision of control, be significant improvement to structure shown in Figure 1.But this bivalve valve structure and twin shaft layout also cause the complexity of structure and volume to increase.Make its occasion less be difficult to install, dismantle and maintenance in some spaces.
The purpose of this utility model is: provide a kind of and be used to heat, the flow control valve of heating equipment, on the basis of dependable flow degree of regulation, simplified structure, reduces cost, so that it is promoted the use of in various occasions at reduced volume, weight reduction.
The technical solution of the utility model is: a kind of being used for heats, the flow control valve of heating equipment, comprise that has a water-inlet cavity 4, the valve body 1 of water chamber 5 and a upper end-hole and a lower end mouth, one is installed in valve body 1 upper end-hole and the capping upper end-hole, manually set the manual modulation valve 3 of flow, one is coaxially installed in valve body 1 lower end mouth with manual modulation valve 3, balance Control Scheme is set the automatic regulating valve of flow, one is connected and the lower cover 2 of capping lower end mouth by bolt with valve body 1 lower end mouth, this automatic regulating valve comprises diaphragm 13, by pressing plate 11 and spring seat 12 automatic valve rod 14 that is connected with diaphragm 13 and the automatic flap 17 that is connected with automatic valve rod 14 upper ends, it is characterized in that
(1) diaphragm 13 is clamped between the lower end mouth and lower cover 2 of valve body 1, surrounding the chamber that forms by diaphragm 13 and lower cover 2 is diaphragm exocoel 8, it by being positioned at lower cover 2 inside back-pressure hole 7 and be positioned at back-pressure hole 6 valve body 1 inside, that be communicated with back-pressure hole 7, be communicated with water-inlet cavity 4; Chamber above the diaphragm 13 is a diaphragm inner chamber 9, holds the main member of automatic regulating valve;
(2) guide sleeve 15 is arranged in diaphragm inner chamber 9, it is a step axle that has axial pass-through holes, and upper diameter is big, and lower diameter is little, on large diameter cylndrical surface, have and the friction tight junction plane of the inner headed face of diaphragm inner chamber 9, seal ring 21 is arranged on this junction plane;
(3) the interior step circle guide surface of a diameter greater than through hole arranged in the upper end of guide sleeve 15 center through holes, with the periphery sliding fit of automatic flap 17; The interior step circle guide surface of a diameter less than through hole arranged, with the external diameter sliding fit of automatic valve rod 14 in the lower end of guide sleeve 15 center through holes; Automatically valve rod 14 is through in the center through hole of guide sleeve 15, and the automatic flap 17 that is connected in automatic valve rod 14 upper ends closes with the interior step circle guide surface cunning of through hole upper end, guide sleeve 15 center; Spring 16 is between guide sleeve 15 and spring seat 12;
(4) on the flap 17 pressure guide hole 18 that runs through is arranged automatically, the pressure guide hole 19 that communicates with the center through hole is arranged on the small diameter cylinders face of guide sleeve 15 bottoms, and diaphragm inner chamber 9 communicates with the upper chamber of automatic flap 17 through the center through hole and the pressure guide hole 18 of pressure guide hole 19, guide sleeve 15.
The utility model has the advantages that greatly to simplify the structure, dwindled the boundary dimension of valve significantly, alleviated weight, also reduced cost simultaneously.Through the actual design checking, a kind of embodiment of the utility model alleviates 40% than existing valve overall weight, and cost reduces more than 30%.Why can dwindle the volume of valve greatly, reason is following 2 points: the first, the utility model has recovered manual modulation valve and the coaxial mounted layout of automatic regulating valve, this structure is compared with structure shown in Figure 2, cancelled the diaxon layout and the two self-acting valve valve structure that are arranged in parallel, can shorten the horizontal dimension of valve greatly and simplify valve body structure.The second, valve shown in Figure 2 is installed in the main member of automatic regulating valve in the diaphragm exocoel 8, fails to make full use of the space in the diaphragm inner chamber 9, causes the height of valve to reduce.And the utility model is installed in the main member of automatic regulating valve in the diaphragm inner chamber 9, makes originally that vacant diaphragm inner chamber becomes the place that holds the automatic regulating valve main member, has dwindled the volume of diaphragm exocoel 8 greatly.Therefore, compare with Fig. 1 or structure shown in Figure 2, in the vertical direction, the size of valve also can be dwindled greatly.Owing to dwindled volume, alleviated weight, saved material and machining period, therefore also reduced cost.The precision that the utility model energy dependable flow is regulated, volume is small and exquisite, in light weight, has broad prospect for its application.
Description of drawings.
Fig. 1 is a kind of structure principle chart of existing self-operated flow regulator.
Fig. 2 is the structure principle chart of another kind of existing self-operated flow regulator.
Fig. 3 is a structure principle chart of the present utility model.
Below in conjunction with accompanying drawing the utility model is described in further details.Referring to Fig. 3, this is a structure example of the present utility model.Water-inlet cavity 4 is arranged on the valve body 1, and water chamber 5 and upper end-hole and lower end mouth, upper end-hole are installed with manual modulation valve 3.Can use dissimilar manual modulation valves, for example screw valve.Manual modulation valve 3 is adjusted to certain aperture to set flow according to the needs of flow.The water of coming in from water-inlet cavity 4, valve seat 10 from valve body 1 inside behind manual modulating valve 3 flows out manual modulation valves 3, also be to flow to automatic regulating valve simultaneously, because automatic regulating valve and manual modulation valve 3 coaxial relative installations, valve seat 10 is the valve seat of manual modulation valve 3, also is the valve seat of automatic regulating valve simultaneously.This structure is basic identical with the structure of the corresponding part of valve shown in Figure 1.The water that flows out from automatic regulating valve flows out flow control valve through water chamber 5.Automatic regulating valve is installed in the lower end mouth of valve body 1, and lower cover 2 is connected with valve body 1 usefulness bolt, and lower end mouth is sealed.Main improvement of the present utility model is that the main member of automatic regulating valve is installed in the diaphragm inner chamber 9, has effectively utilized the volume of valve body 1 internal chamber, makes the automatic regulating valve compact structure, thereby reduces the volume of valve.The main member of automatic regulating valve comprises automatic valve rod 14, guide sleeve 15, spring 16 and automatic flap 17.Automatically the lower end of valve rod 14 links together by the clamping and the diaphragm 13 of pressing plate 11 and spring seat 12.Be that diaphragm 13 surrounds the diaphragm exocoel 8 that forms with lower cover 2 below the diaphragm 13, this chamber is communicated with water-inlet cavity 4 by back-pressure hole 7 that is made in lower cover 2 body inside and the back-pressure hole 6 that is made in valve body 1 body inside.Therefore, the hydraulic pressure in the diaphragm exocoel 8 equals the hydraulic pressure P1 in the water-inlet cavity 4.Because diaphragm exocoel inside need not hold other members, so its volume can dwindle greatly.Automatically the upper end of valve rod 14 is connecting flap 17 automatically, and it is accurately relative with the internal diameter of valve seat 10, and the upper surface of flap 17 is parallel with the lower surface of valve seat 10 automatically.Automatically the distance between flap 17 and the valve seat 10 has determined the resistance size of automatic regulating valve.When pushing up on the valve rod 14 automatically, the distance between flap 17 and the valve seat 10 is dwindled automatically, and it is big that resistance becomes, and stops flow to become big; Otherwise when valve rod 14 descended automatically, the distance between flap 17 and the valve seat 10 increased automatically, and resistance force diminishes stops flow to diminish.Guide sleeve 15 is very important members, it is a step axle that has axial pass-through holes, and its upper diameter is big, and lower diameter is little, on the bigger cylndrical surface of diameter, have and the friction tight junction plane of the inner headed face of diaphragm inner chamber 9, seal ring 21 is arranged on this junction plane.
The interior step circle guide surface of a diameter greater than through hole arranged, with the periphery sliding fit of automatic flap 17 in the upper end of guide sleeve 15 center through holes; The interior step circle guide surface of a diameter less than through hole arranged, with the external diameter sliding fit of automatic valve rod 14 in the lower end of guide sleeve 15 center through holes.Automatically valve rod 14 is through in the center through hole of guide sleeve 15, is connected in the automatic flap 17 of automatic valve rod 14 upper ends and the interior step circle guide surface sliding fit of through hole upper end, guide sleeve 15 center.Because flap 17 and automatic valve rod 14 all have the guiding of guide surface automatically, have guaranteed the coaxality of automatic valve rod 14 when moving up and down.For the ease of processing, an engage sleeves 20 can be set, its periphery and guide sleeve 15 center through hole drive fits, the external diameter sliding fit of its inner headed face and automatic valve rod 14 in the lower end of guide sleeve 15 center through holes.Simultaneously in the interior step circle of through holes upper end, guide sleeve 15 center, an engage sleeves 22 is set, its periphery with should in step circle drive fit, its inner headed face and the periphery sliding fit of flap 17 automatically.Engage sleeves 20,22 can be used the made of wear-and corrosion-resistant.
Spring 16 is enclosed within on the less cylinder of guide sleeve 15 lower diameter between guide sleeve 15 and spring seat 12.One end of spring 16 withstands guide sleeve 15, and the other end withstands diaphragm 13 by spring seat 12.The effect of spring 16 is Balance Control diaphragm chamber pressures, makes the gravity of the moving member of chamber pressure and automatic regulating valve and the pressure that the spring force sum equals the diaphragm exocoel.
Automatically on the flap 17 pressure guide hole 18 that runs through is being arranged, the chamber of automatic flap 17 tops, valve seat 10 lower areas is communicated with gap between guide sleeve 15 center through holes and the automatic valve rod 14.Have the pressure guide hole 19 that communicates with the center through hole on the small diameter cylinders face of guide sleeve 15 bottoms, like this, diaphragm inner chamber 9 through the center through hole of pressure guide hole 19, guide sleeve 15 with gap between the valve rod 14 and pressure guide hole 18 communicate with the upper chamber of automatic flap 17 automatically.If hydraulic pressure is P2 in the chamber of flap 17 tops, valve seat 10 lower areas automatically, then the hydraulic pressure of diaphragm inner chamber also is P2.
The utility model flow control valve, relies on mutually and restricts at the organic assembling by manual modulation valve and automatic regulating valve, reaches under different intake pressures and the different situation that goes out water resistance, keeps the purpose of constant flow automatically.Manual modulation valve is used to set flow, and automatic regulating valve is used for balance, control flow rate.According to formula: △ P=P
1-P
2=k*G
2, in the formula, △ P is the pressure reduction of manual modulation valve import and outlet, P
1Be inlet pressure, P
2Be outlet pressure, i.e. the pressure of valve seat 10 lower chamber in the utility model, k is the manual modulation valve flow coefficient, G is a flow.For example, when systematic Water supply pressure improved (or decline), flow G had the trend of increase (or reducing), but because the accommodation coefficient k of manual modulation valve is a definite value, made △ P=P
1-P
2The trend that increase (or reducing) also arranged, and P
1And P
2Act on diaphragm exocoel and epicoele by pressure guide hole respectively, the build-up of pressure difference increases (or reducing), thereby overcome (or surrender) spring force, drive on the automatic flap and move (or moving down), reduce (or increase) circulation area, increase (or reducing) resistance, limited the increase (or reducing) of flow, till the diaphragm applied force balance.By said process, finally kept the flow of setting, reach the purpose of control flow rate.
Claims (2)
1, a kind of being used for heats, the flow control valve of heating equipment, comprise that has a water-inlet cavity [4], the valve body [1] of water chamber [5] and a upper end-hole and a lower end mouth, one is installed in valve body [1] upper end-hole and the capping upper end-hole, manually set the manual modulation valve [3] of flow, one is coaxially installed in valve body [1] lower end mouth with manual modulation valve [3], balance Control Scheme is set the automatic regulating valve of flow, one is connected and the lower cover [2] of capping lower end mouth by bolt with valve body [1] lower end mouth, this automatic regulating valve comprises diaphragm [13], by pressing plate [11] and spring seat [automatic valve rod [14] that [12] are connected with diaphragm [13] and the automatic flap [17] that is connected with automatic valve rod [14] upper end, it is characterized in that
(1) diaphragm [13] is clamped between the lower end mouth and lower cover [2] of valve body [1], surrounding the cavity that forms by diaphragm [13] and lower cover [2] is diaphragm exocoel [8], and it is communicated with water-inlet cavity [4] by being positioned at the inner back-pressure hole [7] of lower cover [2] and being positioned at valve body [1] back-pressure hole [6] inner, that be communicated with back-pressure hole [7]; Cavity above the diaphragm [13] is diaphragm inner chamber [9], holds the main member of automatic regulating valve;
(2) guide sleeve [15] is arranged in diaphragm inner chamber [9], it is a step axle that has axial pass-through holes, and upper diameter is big, and lower diameter is little, the friction tight junction plane of inner headed face with diaphragm inner chamber [9] is arranged on large diameter cylndrical surface, seal ring [21] is arranged on this junction plane;
(3) the interior step circle guide surface of a diameter greater than through hole arranged in the upper end of guide sleeve [15] center through hole, with the periphery sliding fit of automatic flap [17]; The interior step circle guide surface of a diameter less than through hole arranged, with the external diameter sliding fit of automatic valve rod [14] in the lower end of guide sleeve [15] center through hole; Automatically valve rod [14] is through in the center through hole of guide sleeve [15], is connected in the automatic flap [17] of automatic valve rod [14] upper end and the interior step circle guide surface sliding fit of guide sleeve [15] center through hole upper end; Spring [16] is positioned between guide sleeve [15] and the spring seat [12];
(4) on the flap [17] pressure guide hole [18] that runs through is arranged automatically, the pressure guide hole [19] that communicates with the center through hole is arranged on the small diameter cylinders face of guide sleeve [15] bottom, and diaphragm inner chamber [9] communicates with the top valve pocket of automatic flap [17] through the center through hole and the pressure guide hole [18] of pressure guide hole [19], guide sleeve [15].
2, flow control valve according to claim 1, it is characterized in that, there is an engage sleeves [20] lower end at guide sleeve [15] center through hole, its periphery and guide sleeve [15] center through hole drive fit, the external diameter sliding fit of its inner headed face and automatic valve rod [14]; In the interior step circle of guide sleeve [15] center through hole upper end, an engage sleeves [22] is arranged, its periphery with should in step circle drive fit, its inner headed face and the periphery sliding fit of flap [17] automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231495 CN2418328Y (en) | 2000-04-05 | 2000-04-05 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231495 CN2418328Y (en) | 2000-04-05 | 2000-04-05 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418328Y true CN2418328Y (en) | 2001-02-07 |
Family
ID=33594374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231495 Expired - Fee Related CN2418328Y (en) | 2000-04-05 | 2000-04-05 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418328Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316190C (en) * | 2004-09-30 | 2007-05-16 | 刘克勤 | Self force type flow control valve in using small membrane |
| CN100353271C (en) * | 2003-03-13 | 2007-12-05 | F.W.奥文特罗普两合公司 | Flow regulating valve with hidden presetting mechanism |
| CN102829222A (en) * | 2012-08-17 | 2012-12-19 | 浙江盾安阀门有限公司 | Pressure-difference-variable flow control valve |
| CN105159333A (en) * | 2015-09-29 | 2015-12-16 | 黄杰 | Airflow control device |
| CN109114271A (en) * | 2018-09-11 | 2019-01-01 | 浙江盾安智控科技股份有限公司 | dynamic flow control valve |
| CN109764171A (en) * | 2017-11-10 | 2019-05-17 | 丹佛斯有限公司 | Pressure-control valve |
| EP3677981A1 (en) * | 2019-01-07 | 2020-07-08 | Danfoss A/S | Differential pressure valve arrangement |
| CN115978201A (en) * | 2022-05-12 | 2023-04-18 | 江苏享旺阀门有限公司 | Detachable valve |
-
2000
- 2000-04-05 CN CN 00231495 patent/CN2418328Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353271C (en) * | 2003-03-13 | 2007-12-05 | F.W.奥文特罗普两合公司 | Flow regulating valve with hidden presetting mechanism |
| CN1316190C (en) * | 2004-09-30 | 2007-05-16 | 刘克勤 | Self force type flow control valve in using small membrane |
| CN102829222A (en) * | 2012-08-17 | 2012-12-19 | 浙江盾安阀门有限公司 | Pressure-difference-variable flow control valve |
| CN105159333A (en) * | 2015-09-29 | 2015-12-16 | 黄杰 | Airflow control device |
| CN105159333B (en) * | 2015-09-29 | 2018-01-19 | 黄杰 | Air flow controller |
| CN109764171A (en) * | 2017-11-10 | 2019-05-17 | 丹佛斯有限公司 | Pressure-control valve |
| CN109114271A (en) * | 2018-09-11 | 2019-01-01 | 浙江盾安智控科技股份有限公司 | dynamic flow control valve |
| CN109114271B (en) * | 2018-09-11 | 2023-12-22 | 浙江迪艾智控科技股份有限公司 | Dynamic flow control valve |
| EP3677981A1 (en) * | 2019-01-07 | 2020-07-08 | Danfoss A/S | Differential pressure valve arrangement |
| CN111412311A (en) * | 2019-01-07 | 2020-07-14 | 丹佛斯有限公司 | Differential pressure valve device |
| CN115978201A (en) * | 2022-05-12 | 2023-04-18 | 江苏享旺阀门有限公司 | Detachable valve |
| CN115978201B (en) * | 2022-05-12 | 2023-11-17 | 江苏享旺阀门有限公司 | Detachable valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |