CN87211313U

CN87211313U - Temp. sensitive flow self controlled valve

Info

Publication number: CN87211313U
Application number: CN 87211313
Authority: CN
Inventors: 陈喜文
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-10-22
Filing date: 1987-10-22
Publication date: 1988-09-14

Abstract

The utility model discloses a temperature sensitive flow self controlled device. The temperature sensitive sensor adopts double corrugated pipes, the change of temperature changes into the linear displacement of the double corrugated pipes L-[1] and L-[2], and the linear displacement of the L-[2] is controlled by the spacing. The linear displacement of L-[1] is used for controlling the positions of the valve port and the valve needle of the adjusting valve to realize the effect of temperature sensitive sense and self controlled flow. The utility model comprises a constant temperature flame controller, a constant temperature flow controller, and a constant temperature shower adjustor.

Description

Temp. sensitive flow self controlled valve

The utility model relates to a kind of temperature sensitive flow automatic control device.

The expand with heat and contract with cold temperature transducer of phenomenon manufacturing of applied material, stable performance, good reliability has good antijamming capability.This class sensor all is that temperature signal is become the displacement indication to watch and to measure at present; Or displacement indication further become electrical signal, make closing of circuit or disconnection, it is the switch indication of circuit, as the bimetallic strip temperature-sensitive switch, mercury thermometers etc. all are to provide an electrical signal that is switched on or switched off on a certain temperature value, remove to control the energy of heating by this electrical signal again, try to achieve a transient equiliblium, obtain constant temperature.If the energy is electric power, then this control is also very convenient, as it is just complicated to remove to control electric power other energy in addition.

The purpose of this utility model is the change in displacement that variation of temperature is become elastic element, by the size of the direct adjusting control valve door of this change in displacement, controls heat exchange with control flow rate, tries to achieve a transient equiliblium, obtains constant temperature.Can be the effect that the water heater of electric power, combustible gas, liquid fuel, coal, solar energy, underground heat is realized temperature sensitive sensing, flow automatic control to thermal source.

The temperature sensitive flow internally piloted valve of the utility model comprises constant temperature flame controller (Fig. 1), constant temperature flow dontroller (Fig. 2), constant temperature shower regulator three kinds of internally piloted valves such as (Fig. 3).Fig. 4 is a kind of content formula constant temperature flame controller.Among Fig. 1～Fig. 4, the 1-water intake, the 2-water outlet, 3-regulates valve port, and 4-regulates needle, 5-temperature adjustment bolt, 6-temp-sensitive sensor, 7-movable sealing cushion rubber, 8-shell, 9-alignment bolt, the 10-fuel gas inlet, 11-gas outlet, the thin copper pipe of 12-, 13-bellows L ₁, 14-bellows L ₂The change in displacement that changes the generation of promotion elastic element of expanding with heat and contract with cold of liquid realizes what constant temperature was modulated.Its change in displacement adopts two different cross-sectional and different-stiffness bellows to realize.In Fig. 1, Fig. 2, Fig. 3, Fig. 4, temp-sensitive sensor (6) is by bellows L ₁L ₂Form a seal container with container V.V is equipped with inside the bigger liquid of the coefficient of volume expansion, bellows L ₁, L ₂Make the linear displacement element.L ₁Net sectional area much smaller than L ₂Net sectional area, and L ₁Rigidity much larger than L ₂Rigidity.Expansion of liquids when not having extraneous restriction in the V promotes L simultaneously ₁, L ₂Make linear displacement, displacement amount and variation of temperature are linear, L ₁, L ₂Effect be distinguishing, L ₁The cross section is little, thus to same expanding volume (as L ₂Motionless), L ₁Linear displacement big (to L ₂Than).So at L ₂When motionless, variation of temperature only makes L ₁Make linear displacement, this linear displacement promotes to regulate needle (4), has changed the distance between adjusting needle and the adjusting valve port (3), has promptly changed the effective aperture size of valve, has controlled flow; L ₂Section area is bigger, thus to same expanding volume (as L ₁Motionless), L ₂Linear displacement less (to L ₁Than).L ₁Rigidity big, section area is again little, thus under same pressure, when not having extraneous restriction, L ₁Linear displacement much smaller than L ₂Line move outward, can regard motionless as, expanding volume is only by L ₂Linear displacement fill up, this moment L ₂The linear displacement amount just be the scale of thermometer flow function of temperature-rise period, displacement amount i.e. L among the figure ₂And the distance between the alignment bolt.By the geometric distance between definite B of temperature adjustment bolt (5) adjustment and the alignment bolt, whenever determine the just definite thermostat temperature point of a distance.L ₂And the ultimate range between the alignment bolt is thermostatically controlled maximum magnitude.The dynamic process of temp-sensitive sensor is as follows: rotate temperature adjustment bolt (artificially adjustable) on request, determine a certain thermostat temperature value (L ₂Relative geometric distance with the alignment bolt).The water of being heated is entered by import (1), contacts with temp-sensitive sensor (6), is flowed out by outlet (2).(6) internal liquid expanded by heating promotes L ₂Elongation, when AA contacts with BB, L ₂Can not extend because of spacing again, reach constant temperature point temperature this moment, the pressure surge that (6) are inner forces L ₁The relative position of modulating valve valve port (3) and needle (4) is being controlled in elongation, the variation of this linear displacement, has changed the effective aperture size of modulating valve, has modulated flow, is keeping the transient equiliblium on this constant temperature point.

The utility model has the advantages that applicable to multiple heating thermal source, realize the effect of temperature sensitive sensing, flow automatic control.As water heater for using gases fuel, then adopt constant temperature flame controller, can effectively modulate coolant-temperature gage.As for electric boiler, solar water heater then adopts the constant temperature flow dontroller to cooperate, and just can obtain a thermostatted water output.As hot water (high temperature) from hot spring (geothermal utilization) or heating boiler, need blend together warm water (for example about 42 ℃), then adopt constant temperature shower regulator to cooperate, just can obtain satisfied shower water, and how present shower bath obtains thermostatted water with hot and cold two inlet valves of artificial hand adjustment, both inconvenient, dangerous again.Another advantage of the present utility model is that its temperature transducer (6) adopts bi-bellow, so the control range of broad can be arranged.With higher degree of regulation, and the influence of not modulated of whole temperature-rise period.

Have only when temperature is elevated to and just modulate when closing on constant temperature point, so the time efficiency height.

Embodiment 1.Constant temperature flame controller (Fig. 1).Gaseous fuel enters by advancing gas port (10), modulating valve by valve port (3) and needle (4) composition, go out by going out gas port (11), deliver to heater burning (not drawing the water heater part among the figure), enter the water intake (1) of this controller by the hot water of water heater outflow, temp-sensitive sensor (6) obtains temperature information at this, is flowed out to supply with by water outlet (2) and uses.Temp-sensitive sensor when temperature-rise period, L ₂Elongation, L ₂When touching with the alignment bolt, L ₂Just no longer elongation, (3) arrive the control position with the distance of (4) at this moment, if this position is inaccurate, can regulate temperature adjustment bolt (5) and the relative position of proofreading and correct bolt (9).When water temperature near the constant temperature point, when water temperature rose again, the distance of (3) and (4) was dwindled, the inflammable gas flow that passes through just reduces, the water temperature of heater begins to descend.When water temperature was lower than the control temperature, (3) increased with the distance of (4), and the flow of inflammable gas increases, and the water temperature of heater begins to rise, and to reach the temperature on constant temperature point, keeps a transient equiliblium.The size of water consumption and the temperature of water inlet in time and irregular variation, this valve can both be regulated the flow of heater gaseous fuel automatically, the size of control flame keeps water termostat.

Embodiment 2.Constant temperature flow dontroller (Fig. 2).The valve port of this valve (3) maintains certain clearance with needle (4) when normal state (temperature is lower than the constant temperature point), can have a spot of water to pass through, and temp-sensitive sensor (6) is heated.Water is entered by water intake (1), and flow out to supply with by water outlet (2) and use, when water temperature rises, L ₂Elongation, L ₂Touch L with the alignment bolt ₂No longer elongation, water temperature is near thermostat temperature, and water temperature raises again, L ₁Elongation advances and regulates needle (4), and the flow of water strengthens, and makes water flow through heater as early as possible, absorbs heat less, has reduced water temperature.When water temperature reduces, L ₁Contraction retracts needle (4), and the flow of water reduces, and makes water slowly flow through heater, absorbs a little heats more, improves water temperature, is implemented in the transient equiliblium on the thermostat temperature point thus.

Embodiment 3.This regulator of constant temperature shower regulator (Fig. 3) is that it is constant to reach the water outlet water temperature by the water inlet ratio of hot and cold two valves of a temp-sensitive sensor (6) control.Low temperature valve valve port (3) is smaller with needle (4) gap under normal state, and thermal valve valve port (3) is big with needle (4) gap.To advance hot water much at first, sensor is heated, L ₂Begin elongation, when AA contacted with BB, water temperature was near thermostat temperature, and temperature raises again, L ₁Elongation left, the hot water input reduces, and the cold water input increases, and water temperature descends.When water temperature is hanged down, L ₁Retract to the right, the hot water input increases, and the cold water input reduces, and remains on the transient equiliblium on the thermostat temperature point thus.

Embodiment 4.Content formula constant temperature flame controller (Fig. 4).Its action principle is identical with constant temperature flame controller (Fig. 1).Just temperature sensitive head is connected by a thin copper pipe (12), be put in the controlled heat container, obtain temperature information, and this controller still is installed on the fuel gas pipeline, control flame size to regulate gas flow.It is applicable to the thermostatically control to heating kettle.

Claims

1, a kind of temperature sensitive flow internally piloted valve that adopts temp-sensitive sensor, feature of the present utility model are that temp-sensitive sensor adopts bi-bellow, and temp-sensitive sensor (6) is by bi-bellow L ₁, L ₂Form a seal container with container V, V is equipped with inside the bigger liquid of the coefficient of volume expansion, L ₁Net sectional area much smaller than L ₂Net sectional area, L ₁Rigidity much larger than L ₂Rigidity, on the shell (8) of temperature sensitive flow internally piloted valve, be provided with temperature adjustment bolt (5), alignment bolt (9), valve port (3), water intake (1), water outlet (2), fuel gas inlet (10), gas outlet (11), at bellows L ₁(13) front end is provided with needle (4), at bellows L ₂(14) end is provided with movable sealing cushion rubber (7), L ₂The position corresponding with the position of temperature adjustment bolt (5), L ₂The expansion line displacement amount be subjected to the spacing of temperature adjustment bolt (5), needle (4) is corresponding with the position of valve port (3), L ₁The expansion line displacement amount controlled the relative position of modulating valve valve port (3) and needle (4), promptly changed the effective aperture size of modulating valve, controlled flow.

2, temperature sensitive flow internally piloted valve as claimed in claim 1 is characterized in that not establishing fuel gas inlet and gas outlet.