CN103511695B - Self-power type balance electric control valve - Google Patents
Self-power type balance electric control valve Download PDFInfo
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- CN103511695B CN103511695B CN201310440601.XA CN201310440601A CN103511695B CN 103511695 B CN103511695 B CN 103511695B CN 201310440601 A CN201310440601 A CN 201310440601A CN 103511695 B CN103511695 B CN 103511695B
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- flow
- chamber
- valve
- rate adjustment
- elongated hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of self-power type balance electric control valve, belong to regulating valve technical field, it is simple that technical problem to be solved there is provided a kind of structure, rationally, constant flow, the simultaneously flow self-power type balance electric control valve that can synchronously increase and reduce again, the technological scheme adopted is that valve inner is provided with pressure reduction adjustment chamber and Flow-rate adjustment chamber, pressure reduction regulates inside, chamber to be provided with the water-inlet cavity be communicated with water intake, water-inlet cavity is provided with spool, stem lower portion is fixed with trim ring and lower clamping ring, spring is provided with between lower clamping ring and stifle, diaphragm of rubber sheet is provided with between lower clamping ring and upper trim ring, mineralization pressure control chamber between diaphragm of rubber sheet and stifle, Flow-rate adjustment chamber is provided with telescopic flap, the middle part in Flow-rate adjustment chamber is provided with fluid passage, pressure control cavity is connected by the water outlet of connecting tube with Flow-rate adjustment chamber, the present invention is mainly used in building heating ventilation air-conditioning system and industrial or civilian fluid pipe network distributing system.
Description
Technical field
The present invention relates to a kind of self-power type balance electric control valve, belong to regulating valve technical field.
Background technique
Electric control valve is the transient equiliblium product integrated with motorized adjustment, mainly be applicable to heating ventilation air-conditioning system tail end air conditioner equipment, temperature as air-conditioning box, Fresh air handling units, air processing machine etc. controls, by configuration intelligent object control gear, can automatically control the flow of each loop, temperature easily, realize Appropriate application energy, energy-saving and cost-reducing, intelligent management.Apply this valve and make end-equipment only by the impact of standard control signal, and by the impact of system pressure fluctuation, make system fading margin more stable, more energy-conservation, be specially adapted in the variable flow system that system loading changes greatly.
Electric control valve refers to that valve according to the aperture of the automatic regulating valve of the change of target area temperature control signals, thus can change water flow, finally makes the true temperature of target area consistent with setting temperature.
In current heat supplying air conditioning flow control system, the dynamic electric control valve of use, the flow when valve wide open leads to is difficult to the design discharge equaling institute's Ore-controlling Role, often much larger than design discharge, this reduces the valve anthority of valve.Most dynamically electric control valve is angle stroke, is difficult to accomplish that aperture and flow synchronous equal amount increase.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved there is provided a kind of simple and reasonable for structure, constant flow, simultaneously the flow self-power type balance electric control valve that can synchronously increase and reduce again.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: self-power type balance electric control valve, comprise: valve body, described valve inner is provided with pressure reduction and regulates chamber and Flow-rate adjustment chamber, described pressure reduction regulates on chamber and is provided with water intake, chamber is provided with water outlet to Flow-rate adjustment, described pressure reduction regulates top, chamber to be provided with gland, bottom is provided with stifle, inside is also provided with the water-inlet cavity be communicated with water intake, described water-inlet cavity is provided with the through hole run through up and down, valve rod moving up and down is provided with in through hole, valve rod is provided with spool, spool is corresponding with through hole, described valve rod top is inserted on gland, the bottom of valve rod is fixed with trim ring and lower clamping ring, spring is provided with between described lower clamping ring and stifle, diaphragm of rubber sheet is provided with between lower clamping ring and upper trim ring, mineralization pressure control chamber between described diaphragm of rubber sheet and stifle,
Top, described Flow-rate adjustment chamber is provided with valve seat, drive link is provided with in described valve seat, the lower end of described drive link is provided with telescopic flap, and the middle part in Flow-rate adjustment chamber is provided with internal conical surface and with the fluid passage of boss bottom the conical surface, telescopic flap is positioned at directly over fluid passage;
Described pressure control cavity is connected by the water outlet of connecting tube with Flow-rate adjustment chamber.
Described pressure reduction regulates on chamber and is also provided with differential pressure adjusting device, described differential pressure adjusting device comprises modulating valve, the first elongated hole and the second elongated hole, described first elongated hole is arranged on valve body and regulates chamber to be connected with pressure reduction, second elongated hole is arranged on stifle and is connected with pressure control cavity, described first elongated hole is connected with the second elongated hole, and the second elongated hole is provided with modulating valve.
The beneficial effect that the present invention is compared with prior art had is: the present invention is simple and reasonable for structure, integrate pressure reduction to regulate and flow control, valve rod and the spool of interlock is comparatively regulated by the pressure ratio of diaphragm of rubber sheet both sides, valve opening under automatic change different pressures, realizes the transient equiliblium of flow; Pressure reduction regulates on chamber and is also provided with differential pressure adjusting device simultaneously, when valve opening reaches maximum, valve flow and design discharge unequal time, by regulating differential pressure adjusting device, valve flow is made to equal design discharge, this not only increases the valve anthority of valve, also make adjustment more accurate, control convenient; And the flap in Flow-rate adjustment chamber adopts the telescopic balanced force structure of straight journey, mutually move between telescopic flap and circulation passage and carry out Flow-rate adjustment, make valve often increase equivalent opening value, flow value increases equal, and degree of accuracy is higher.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention.
In figure: 1 is valve body, 2 is pressure reduction adjustment chamber, and 3 is Flow-rate adjustment chamber, and 4 is water intake, and 5 is water outlet, 6 is gland, and 7 is stifle, and 8 is water-inlet cavity, and 9 is through hole, 10 is valve rod, and 11 is spool, and 12 is upper trim ring, and 13 is lower clamping ring, 14 is spring, and 15 is diaphragm of rubber sheet, and 16 is valve seat, and 17 is drive link, 18 is telescopic flap, and 19 is fluid passage, and 20 is pressure control cavity, and 21 is connecting tube, 22 is differential pressure adjusting device, and 23 is modulating valve, and 24 is the first elongated hole, and 25 is the second elongated hole.
Embodiment
As shown in Figure 1, 1, self-power type balance electric control valve, comprise: valve body 1, it is characterized in that: described valve body 1 inside is provided with pressure reduction and regulates chamber 2 and Flow-rate adjustment chamber 3, described pressure reduction regulates on chamber 2 and is provided with water intake 4, Flow-rate adjustment chamber 3 is provided with water outlet 5, described pressure reduction regulates top, chamber 2 to be provided with gland 6, bottom is provided with stifle 7, inside is also provided with the water-inlet cavity 8 be communicated with water intake 4, described water-inlet cavity 8 is provided with the through hole 9 run through up and down, valve rod 10 moving up and down is provided with in through hole 9, valve rod 10 is provided with spool 11, spool 11 is corresponding with through hole 9, described valve rod 10 top is inserted on gland 6, the bottom of valve rod 10 is fixed with trim ring 12 and lower clamping ring 13, spring 14 is provided with between described lower clamping ring 13 and stifle 7, diaphragm of rubber sheet 15 is provided with between lower clamping ring 13 and upper trim ring 12, mineralization pressure control chamber 20 between described diaphragm of rubber sheet 15 and stifle 7,
Top, described Flow-rate adjustment chamber 3 is provided with valve seat 16, drive link 17 is provided with in described valve seat 16, the lower end of described drive link 17 is provided with telescopic flap 18, the middle part in Flow-rate adjustment chamber 3 is provided with internal conical surface and with the fluid passage 19 of boss bottom the conical surface, telescopic flap 18 is positioned at directly over fluid passage 19;
Described pressure control cavity 20 is connected with the water outlet 5 in Flow-rate adjustment chamber 3 by connecting tube 21.
Described pressure reduction regulates on chamber 2 and is also provided with differential pressure adjusting device 22, described differential pressure adjusting device 22 comprises modulating valve 23, first elongated hole 24 and the second elongated hole 25, described first elongated hole 24 is arranged on valve body 1 and regulates chamber 2 to be connected with pressure reduction, second elongated hole 25 is arranged on stifle 7 and is connected with pressure control cavity 20, described first elongated hole 24 is connected with the second elongated hole 25, and the second elongated hole 25 is provided with modulating valve 23.
In the present invention, drive link 17 can adopt the telescopic flap 18 of hand wheel component or electric actuator assembly manual tune or motorized adjustment, wherein telescopic flap 18 is same as the prior art, telescopic flap 18 and fluid passage 19 coordinate carries out flow control, the shape of fluid passage 19 is internal conical surface, and with boss bottom the conical surface, telescopic flap 18 moves down under the effect of drive link 17, is pressed on the boss of fluid passage 19, boss is provided with seal ring, realizes plane sealing.When carrying out Flow-rate adjustment, fluid enters water-inlet cavity 8 through water intake 4, due to the effect of spring 14, valve rod 10 and spool 11 are in the trend moved upward, namely there is the trend of increase in the gap between spool 11 and through hole 9, fluid backs down spool 11 and enters in pressure reduction adjustment chamber 2, then fluid is flowed out by water outlet 5 through fluid passage 19, segment fluid flow enters pressure control cavity 20 through connecting tube 21 simultaneously, diaphragm of rubber sheet 15 fluctuates under the effect of hydraulic pressure, the hydraulic pressure of diaphragm of rubber sheet 15 both sides is finally made to reach balance, thus the aperture between telescopic flap 18 and fluid passage 19 is when increasing, flow also synchronous equal amount increases, ensure that valve more easily controls, flow is more accurate.
Simultaneously when telescopic flap 18 aperture reaches maximum, the flow of valve does not reach the design discharge of institute's Ore-controlling Role.When passing through adjustment modulating valve 23, fluid in pressure reduction adjustment chamber 2 is in the first elongated hole 24 and the second elongated hole 25 feed pressure control chamber 20, diaphragm of rubber sheet 15 is linked valve rod 10 and spool 11, the aperture of valve is increased, thus make the flow of valve equal the design discharge of institute's Ore-controlling Role, use safer, reliable, flow more easily controls, and valve regulated is also more accurate.
By reference to the accompanying drawings embodiments of the invention are explained in detail above; but the present invention is not limited to above-described embodiment; in the ken that those of ordinary skill in the art possess; various change can also be made obtaining under the prerequisite not departing from present inventive concept, also should be considered as protection scope of the present invention.
Claims (1)
1. self-power type balance electric control valve, comprise: valve body (1), it is characterized in that: described valve body (1) inside is provided with pressure reduction and regulates chamber (2) and Flow-rate adjustment chamber (3), described pressure reduction regulates on chamber (2) and is provided with water intake (4), Flow-rate adjustment chamber (3) is provided with water outlet (5), described pressure reduction regulates chamber (2) top to be provided with gland (6), bottom is provided with stifle (7), inside is also provided with the water-inlet cavity (8) be communicated with water intake (4), described water-inlet cavity (8) is provided with the through hole (9) run through up and down, valve rod moving up and down (10) is provided with in through hole (9), valve rod (10) is provided with spool (11), spool (11) is corresponding with through hole (9), described valve rod (10) top is inserted on gland (6), the bottom of valve rod (10) is fixed with trim ring (12) and lower clamping ring (13), spring (14) is provided with between described lower clamping ring (13) and stifle (7), diaphragm of rubber sheet (15) is provided with between lower clamping ring (13) and upper trim ring (12), mineralization pressure control chamber (20) between described diaphragm of rubber sheet (15) and stifle (7),
Described Flow-rate adjustment chamber (3) top is provided with valve seat (16), drive link (17) is provided with in described valve seat (16), the lower end of described drive link (17) is provided with telescopic flap (18), the middle part in Flow-rate adjustment chamber (3) is provided with internal conical surface and with the fluid passage (19) of boss bottom the conical surface, telescopic flap (18) is positioned at directly over fluid passage (19);
Described pressure control cavity (20) is connected with the water outlet (5) of Flow-rate adjustment chamber (3) by connecting tube (21);
Described pressure reduction regulates on chamber (2) and is also provided with differential pressure adjusting device (22), described differential pressure adjusting device (22) comprises modulating valve (23), the first elongated hole (24) and the second elongated hole (25), described first elongated hole (24) is arranged on valve body (1) and above regulates chamber (2) to be connected with pressure reduction, second elongated hole (25) is arranged on stifle (7) and is above connected with pressure control cavity (20), described first elongated hole (24) is connected with the second elongated hole (25), the second elongated hole (25) is provided with modulating valve (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440601.XA CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440601.XA CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511695A CN103511695A (en) | 2014-01-15 |
| CN103511695B true CN103511695B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310440601.XA Active CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
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| Country | Link |
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| CN (1) | CN103511695B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650302B (en) * | 2016-04-01 | 2018-01-09 | 天津特克执行器有限公司 | Autoclave diaphragm valve with counter balance pocket |
| CN105927774B (en) * | 2016-06-30 | 2019-01-15 | 高继升 | A kind of Multifunctional balance valve |
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2803969B2 (en) * | 1993-05-20 | 1998-09-24 | 株式会社クボタ | Variable constant flow valve |
| CN201621342U (en) * | 2010-02-09 | 2010-11-03 | 天津银河阀门有限公司 | Dynamic flow balance valve |
| CN203477501U (en) * | 2013-09-25 | 2014-03-12 | 临汾华松阀门制造有限公司 | Self-operated balance electric control valve |
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2013
- 2013-09-25 CN CN201310440601.XA patent/CN103511695B/en active Active
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| CN103511695A (en) | 2014-01-15 |
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