CN2731208Y - Independent variable constant flow water valve - Google Patents
Independent variable constant flow water valve Download PDFInfo
- Publication number
- CN2731208Y CN2731208Y CN 200420093880 CN200420093880U CN2731208Y CN 2731208 Y CN2731208 Y CN 2731208Y CN 200420093880 CN200420093880 CN 200420093880 CN 200420093880 U CN200420093880 U CN 200420093880U CN 2731208 Y CN2731208 Y CN 2731208Y
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- water
- valve
- independent variable
- responsive element
- water flow
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Abstract
The utility model relates to an independent variable constant flow water valve, belonging to the technical field of liquid flow control valve. The utility model provides an independent variable constant flow water valve for which the water flow can not be influenced by the fluctuation of the pressure of water supply and the water output is in function relation with the temperature of inlet water. When the independent variable constant flow water valve is applied to a fast gas water-heater, the water output is in direct proportion function relation with the temperature of the inlet water, so the water flow is enlarged when the temperature of the inlet water raises. Therefore, the fast gas water-heater only need to regulate the gas flow in order to regulate the temperature of outlet water conveniently. For this reason, the inner part of a high pressure chamber of the valve body is provided with a flow regulating block and a temperature-sensing element. The cone part of the flow regulating block aims at a port of a water flow regulating valve and keeps a gap with the water flow regulating valve. The rod body part of the flow regulating block is in elastically ductile connection with one end of the temperature-sensing element in the direction of deformation. The other end of the temperature-sensing element in the direction of deformation is in elastically ductile connection with a regulating rod which is vertical to the port of the water flow regulating valve and extends out of the valve body.
Description
Technical field
The utility model relates to the liquid flow control valve technical field, particularly a kind of independent variable constant current water valve that is used for quick formula gas water-heater as flow of inlet water control.
Background technique
In quick formula gas water-heater, make water-exit temperature be adjusted to the temperature value of a certain appointment, thereby except the flow that will change combustion gas changes its heat load, but also need the constant current water valve of the regulated at will water yield that is not subjected to the water supply pressure influence of fluctuations.In the prior art, the general employing: (1) manual tune permanent-flow valve; (2) stepper motor or other Electromagnetic Drive are regulated permanent-flow valve.
Adopt the manual tune mode, except can not realizing control automatically, in adjustment process, because there is thermal inertia in the heat exchanger of water heater, often water temperature is regulated impossible one-time-reach-place, and above-mentioned the 2nd kind of scheme is mainly used in the thermostatic type water heater, its control mode is to regulate its water-outlet quantity by feedback water-exit temperature value, thereby reaction velocity is slow, and its structure is also complicated, the manufacture cost height.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of water supply pressure influence of fluctuations that is not subjected to is provided, the independent variable constant current water valve that its water-outlet quantity and entering water temp have functional relation, when it is applied to quick formula gas water-heater, its water-outlet quantity function relation that is directly proportional with entering water temp, be that entering water temp strengthens, water flow strengthens thereupon, thereby makes quick formula gas water-heater only need regulate gas flow, just can adjust coolant-temperature gage easily.
The technical solution that the utility model proposed is such: a kind of independent variable constant current water valve, be positioned at valve body 2 water intakes 1 inboard and be provided with constant flow regulation valve port 5, constant flow regulation piece 4 places this valve port 5, between water intake 1 outer side wall and constant flow regulation piece 4 Returnning spring 3 is housed; Valve body 2 inner chambers are provided with vertical moisture film assembly 13, and this inner chamber is separated into hyperbaric chamber 19 and low-pressure cavity 15, the strip tail end of described constant flow regulation piece 4 contacts with moisture film assembly 13 right side mid points, between the low-pressure cavity 15 left side walls middle part of moisture film assembly 13 left side central portion and valve body 2 Regulation spring 14 is housed; In the water outlet 11 of described valve body 2 Venturi tube 10 is housed, and have and low-pressure cavity 15 at sidewall corresponding to the aditus laryngis section of Venturi tube 10, the through hole that pressure-taking hole 12 is connected, be provided with Water flow adjusting valve mouth 9 between Venturi tube 10 and the hyperbaric chamber 19, in described hyperbaric chamber 19, also be provided with water flow regulating block 8, heat responsive element 6, the cone part 8-1 of this water flow regulating block 8 is facing to Water flow adjusting valve mouth 9 and leave the gap, the elasticity of doing the rod body part 8-2 of water flow regulating block 8 and an end of heat responsive element 6 deformation directions extends and is connected, the other end of heat responsive element 6 deformation directions with perpendicular to Water flow adjusting valve mouth 9 and extend valve body 2 adjustable lever 17 outward and do the elasticity extension and be connected.Described adjustable lever 17 is threaded with valve body 2, is provided with seal ring 18 and is tightly connected with adjustable lever 17 polished rod section 17-1 on the inboard valve body 2 in this joint.Between one end of the rod body part 8-2 of described water flow regulating block 8 and heat responsive element 6 deformation directions elastic component 7 is housed, does the elasticity extension and connect.Between the other end of described heat responsive element 6 deformation directions and the adjustable lever 17 inner polished rod 17-1 elastic component 16 is housed, does the elasticity extension and connect.Described elastic component is metal spring or rubber washer.The cone part 8-1 of described water flow regulating block 8 facing to Water flow adjusting valve mouth 9 places in the hyperbaric chamber 19 or in the Venturi tube 10.Described heat responsive element 6 adopts expansion of liquids formula heat responsive element or double-metal sheet type heat responsive element.The bimetallic strip sectional shape of described double-metal sheet type heat responsive element is " Z " shape.
When current when the water intake 1 of valve body 2 flows into, flow into hyperbaric chamber 19 through constant flow regulation valve port 5, flow out through Water flow adjusting valve mouth 9 and Venturi tube 10 again, because Venturi tube 10 aditus laryngis sectional area minimums, flow velocity is the fastest, lateral wall pressure significantly descends, lose along stroke pressure in addition, make the pressure of the low-pressure cavity 15 that links to each other with Venturi tube 10 aditus laryngis sidewall through holes by pressure-taking hole 12 be lower than hyperbaric chamber 19, under the effect of moisture film assembly 13, moisture film Regulation spring 14 is compressed, Returnning spring 3 makes constant flow regulation piece 4 move with moisture film assembly 13, reduce in the adjusting conical surface of constant flow regulation piece 4 and the gap of constant flow regulation valve port 5, and water flow can obviously not strengthened, when intake pressure big more, high, low-pressure cavity 19, pressure reduction between 15 is big more, moisture film Regulation spring 14 is stressed big more, and the adjusting conical surface of constant flow regulation piece 4 and the gap of constant flow regulation valve port 5 are more little, has reached the purpose of constant current.On the basis of the above, if reduce the gap that water flow regulating block 8 is regulated between conical surface 8-1 and the Water flow adjusting valve mouth 9, the water resistance except increasing, the pressure reduction between the high and low pressure chamber 19,15 also can increase, thereby water-outlet quantity can reduce by constant, reaches the purpose that changes water-outlet quantity.Owing to adopt the elasticity extension to be connected between adjustable lever 17, heat responsive element 6 and water flow regulating block 8 threes, make between the adjusting conical surface 8-1 of water flow regulating block 8 and the Water flow adjusting valve mouth 9 distance in the 0-2mm scope, water flow regulating block 8 is positioned at Venturi tube 10 1 sides and is extended with thin bar 8-3,8-1 is positioned at hyperbaric chamber 19 1 sides as this adjusting conical surface, because heat responsive element 6 expands, reduce in above-mentioned gap, and water flow diminishes; When this adjusting conical surface 8-1 was positioned at Venturi tube 10 1 sides, because of heat responsive element 6 expands, above-mentioned gap was strengthened, and water flow strengthens.At this moment, regulate conical surface 8-1 over against Water flow adjusting valve mouth 9, Venturi tube 10 1 sides tapered still keep thin bar 8-3 and rod body part 8-2 relative position constant.Why adopting elasticity to extend connects, be because the impulse force of water always pushes away water flow regulating block 8 to water outlet 11 directions, by means of the flexible connection that adds elastic component 7,16, both can adjustable lever 17, heat responsive element 6 and water flow regulating block 8 be linked to be one can appropriateness swing integral body, can remain on elongation state again, thereby guarantee to regulate the precision that presets water flow.Heat responsive element 6 can utilize the characteristic and the form of filling liquid at the elastic metallic shell of expanding with heat and contract with cold of liquid, also can adopt bimetallic strip, when adopting bimetallic strip, its thickness is chosen between 0.2mm-1.5mm, and its width is chosen in the 5mm-20mm scope.Rotary regulating lever 17 can change the preset clearance between Water flow adjusting valve mouth 9 and the adjusting conical surface 8-1, thereby change the pre-allowance of water outlet.
The utility model is as after being used for quick formula gas water-heater and choosing the temperature flow curve, because water flow can be is promptly changed according to the variation of entering water temp, and need not to regulate inflow more conversely according to the water-exit temperature value, thereby only need regulate gas flow, just can be adjusted to required water-exit temperature simply, quickly and accurately.
Compared with prior art, the utlity model has following remarkable result: as be used in quick formula gas water-heater particularly on the thermostatic type water heater, can:
(1) thus simplified control system, reduce cost and also improved reliability;
(2) it is simple, accurately quick water-exit temperature to be regulated.
As be used in hot water charging supply system or the charge system by the hot water circuit central heating, and automatic flow diminishes when adopting entering water temp high, on the contrary the scheme that strengthens can be calculated the water time, just can calculate its expense.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is heat responsive element shown in Figure 1 its A-A sectional view when adopting the bimetallic strip temp-sensitive apparatus.
Embodiment
By following embodiment the utility model is further elaborated.
Present embodiment be the utility model to be applied to the specified heat production water yield be the quick formula thermostatic type of 10L gas water-heater, the about 5.5L/min of water-outlet quantity when 5 ℃ of entering water temps, water-outlet quantity is about 10L/min in the time of 30 ℃.It is 0.3mm that heat responsive element 6 adopts two thickness, width is the V-arrangement bimetallic strip of 12mm, rivet Z-shaped shape as shown in Figure 2, adopt the adjusting conical surface 8-1 of water flow regulating block 8 to be positioned at hyperbaric chamber 19 1 sides, so, inflow reduces when entering water temp descends, thereby the bimetallic strip riveting becomes the distance between two parallel surfaces of Z-shaped heat responsive element 6 to be the short cold length of heat, and promptly the expanding noodles of bimetallic strip is positioned at outer surface.The bimetallic strip riveting becomes Z-shaped both can the assurance that the temperature deformation of increasing coefficient is being arranged under the situation of enough rigidity, two parallel surfaces that can make Z-shaped bimetallic strip again keeping parallelism still after deformation.The assemblying body that elasticity extended configuration between water flow regulating block 8, heat responsive element 6 and the adjustable lever 17 had not only made the three constitute has certain rigidity but also can freely swing and size that its original length is out-of-date with current are arranged keeps basically identical, elastic component 7 or 16 adopts silicone rubber gasket, can preset water flow exactly by rotation adjustable lever 17, rubber seal 18 being housed between adjustable lever 17 and the valve body 2 and having can be for the screw thread of regulating usefulness.Also have the breach of 2 pairs of symmetries on the circumference of Water flow adjusting valve mouth 9, when the adjusting conical surface 8-1 of water flow regulating block 8 is adjacent to Flow-rate adjustment valve port 9, still have minimum discharge, be chosen as 4L/min here.
When the water intake 1 of water from valve body 2 flows into, enter hyperbaric chamber 19 through constant flow regulation valve port 5, flow to water outlet 11 through Water flow adjusting valve mouth 9, Venturi tube 10 again, because the through hole of Venturi tube 10 aditus laryngis sidewalls is communicated with pressure-taking hole 12, intake pressure is big more, and hyperbaric chamber 19 is big more with the pressure reduction of low-pressure cavity 15, and the pressure that moisture film assembly 13 is bestowed moisture film Regulation spring 14 is big more, Returnning spring 4 makes constant flow regulation piece 4 move to left, thereby plays the constant current effect.Under heat responsive element 6 effect, when water temperature descended, the parallel surface of the Z-shaped bimetallic strip of heat responsive element 6 was apart from increasing, the adjusting conical surface 8-1 of water flow regulating block 8 and the gap smaller between the Water flow adjusting valve mouth 9, and water-outlet quantity diminishes; Otherwise water temperature raises, and the water outlet quantitative change is big.The upwardly extending thin bar 8-3 of water flow regulating block 8 plays a part directed rudder, makes water flow regulating block 8 parallel with water outlet 11 directions and remain on the center of Water flow adjusting valve mouth 9 in current.
Claims (8)
1, a kind of independent variable constant current water valve is positioned at valve body (2) water intake (1) inboard and is provided with constant flow regulation valve port (5), and constant flow regulation piece (4) places this valve port (5), between water intake (1) outer side wall and constant flow regulation piece (4) Returnning spring (3) is housed; Valve body (2) inner chamber is provided with vertical moisture film assembly (13), and this inner chamber is separated into hyperbaric chamber (19) and low-pressure cavity (15), the strip tail end of described constant flow regulation piece (4) contacts with moisture film assembly (13) right side mid point, between low-pressure cavity (15) the left side wall middle part of moisture film assembly (13) left side central portion and valve body (2) Regulation spring (14) is housed; In the water outlet (11) of described valve body (2) Venturi tube (10) is housed, and have and low-pressure cavity (15) at sidewall corresponding to the aditus laryngis section of Venturi tube (10), the through hole that pressure-taking hole (12) is connected, be provided with Water flow adjusting valve mouth (9) between Venturi tube (10) and the hyperbaric chamber (19), it is characterized in that: in described hyperbaric chamber (19), also be provided with water flow regulating block (8), heat responsive element (6), the cone part (8-1) of this water flow regulating block (8) is facing to Water flow adjusting valve mouth (9) and leave the gap, the elasticity of doing the rod body part (8-2) of water flow regulating block (8) and an end of heat responsive element (6) deformation direction extends and is connected, the other end of heat responsive element (6) deformation direction with perpendicular to Water flow adjusting valve mouth (9) and extend valve body (2) adjustable lever (17) outward and do the elasticity extension and be connected.
2, independent variable constant current water valve according to claim 1 is characterized in that: described adjustable lever (17) is threaded with valve body (2), is provided with seal ring (18) and is tightly connected with adjustable lever (17) polished rod section (17-1) on the inboard valve body in this joint (2).
3, independent variable constant current water valve according to claim 1 is characterized in that: between the end of the rod body part (8-2) of described water flow regulating block (8) and heat responsive element (6) deformation direction elastic component (7) is housed, does the elasticity extension and connect.
4, independent variable constant current water valve according to claim 1 is characterized in that: between the other end of described heat responsive element (6) deformation direction and the inner polished rod of adjustable lever (17) (17-1) elastic component (16) is housed, does the elasticity extension and connect.
5, according to claim 3 or 4 described independent variable constant current water valves, it is characterized in that: described elastic component is metal spring or rubber washer.
6, independent variable constant current water valve according to claim 1 is characterized in that: the cone part (8-1) of described water flow regulating block (8) facing to Water flow adjusting valve mouth (9) places in the hyperbaric chamber (19) or in the Venturi tube (10).
7, independent variable constant current water valve according to claim 1 is characterized in that: described heat responsive element (6) adopts expansion of liquids formula heat responsive element or double-metal sheet type heat responsive element.
8, independent variable constant current water valve according to claim 7, it is characterized in that: the bimetallic strip sectional shape of described double-metal sheet type heat responsive element is " Z " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093880 CN2731208Y (en) | 2004-10-08 | 2004-10-08 | Independent variable constant flow water valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093880 CN2731208Y (en) | 2004-10-08 | 2004-10-08 | Independent variable constant flow water valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731208Y true CN2731208Y (en) | 2005-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420093880 Expired - Fee Related CN2731208Y (en) | 2004-10-08 | 2004-10-08 | Independent variable constant flow water valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731208Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022566A1 (en) * | 2008-08-29 | 2010-03-04 | Lin Wenjuan | A temperature-controlled water-saving device |
| CN101514761B (en) * | 2008-02-22 | 2012-07-04 | 海尔集团公司 | Automatic flow rate adjusting device |
| CN103090095A (en) * | 2013-01-28 | 2013-05-08 | 苏州宇东暖通技术有限公司 | Low temperature protecting valve |
| CN111351164A (en) * | 2020-04-30 | 2020-06-30 | 四川中邦模具有限公司 | Composite filter element with air humidifying, peculiar smell removing and purifying effects |
| CN114353339A (en) * | 2020-09-29 | 2022-04-15 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and computer readable storage medium |
-
2004
- 2004-10-08 CN CN 200420093880 patent/CN2731208Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514761B (en) * | 2008-02-22 | 2012-07-04 | 海尔集团公司 | Automatic flow rate adjusting device |
| WO2010022566A1 (en) * | 2008-08-29 | 2010-03-04 | Lin Wenjuan | A temperature-controlled water-saving device |
| CN103090095A (en) * | 2013-01-28 | 2013-05-08 | 苏州宇东暖通技术有限公司 | Low temperature protecting valve |
| CN111351164A (en) * | 2020-04-30 | 2020-06-30 | 四川中邦模具有限公司 | Composite filter element with air humidifying, peculiar smell removing and purifying effects |
| CN111351164B (en) * | 2020-04-30 | 2023-12-08 | 中邦(成都)电器有限公司 | Composite filter element with air humidifying, deodorizing and purifying effects |
| CN114353339A (en) * | 2020-09-29 | 2022-04-15 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20091109 |