CN2266722Y - Steam water heater flow control device - Google Patents

Abstract

The utility model relates to a flow control device of a water heater, which comprises a water-gas linkage valve, wherein a gas regulating valve and a diaphragm type water chamber are arranged on the water-gas linkage valve, a water inlet pipe is arranged on the right side of the diaphragm chamber, the right side of the diaphragm chamber is connected with an outlet pipe after passing through a water temperature regulating valve, and the left side of the diaphragm chamber is directly communicated with the outlet pipe; the bypass pipe is provided with a flow control valve, the opening range of a valve hole in the water temperature adjusting valve is 5% -70% of the flow passing through the calibrated flow, the control device has simple and reasonable structure, and the water heater adopting the device is a water heater capable of generating steam, so that the installation, maintenance and use are convenient, and the steam can be generated to preheat a bathroom under the condition of cold weather, thereby being suitable for the environment in the north.

Description

Steam-type water heater volume control device

The utility model relates to a kind of steam-type water heater volume control device, belongs to a kind of critical component that is used to control aqueous vapor in the water heater that can produce steam that is installed in.

In the gas heater of a plurality of series that the Ai Lite of Zhongshan city combustion gas tool factory produces the aqueous vapor interstage valve is housed, one end of aqueous vapor interstage valve is a gas control valve, the other end of aqueous vapor interstage valve is the diaphragm type hydroecium, the chamber of septum right side is equipped with water inlet pipe, the chamber of septum right side links to each other with outlet by behind the water temperature control valve, and the chamber of septum left side directly is connected with outlet.

Chinese patent discloses a kind of " combustion and steam water heater " for No. 91226293.1, it is in order to overcome existing water heater when the water yield reduces to certain value, fire promptly extinguishes, water can't be heated into the drawback of high-temperature steam, the aqueous vapor interstage valve of the diaphragm type structure that gas supply is associated with discharge in the water heater of cancellation prior art, and allow the control of combustion gas and the control of flow cut off fully, adopt some auxiliary electronic control circuits such as thermocouple, regulate and control two states of steam and hot water, the shortcoming of this scheme maximum is combustion gas and flow to be regulated and control relatively mechanism's cancellation of water temperature, make this water heater lose practicality, because the user under normal circumstances, can't guarantee suitable water temperature, when water pressure fluctuations changed, it also was very dangerous using so especially.

Chinese patent 94200069.2 discloses " combustion gas multi-functional water heater ", and it comprises water tank, is total to the closed steam chamber at the end and the control valve that is interconnected with water tank, and not only complex structure, and the thermal efficiency is low, is not suitable for gas heater.

Chinese patent 93211404.4 discloses " gas heater ", it adopts the structure of upper and lower storage chamber, with the very complicated valve of a structure but cooperate electronic circuit to realize the supply of hot water, boiling water, steam, also there is complex structure, the problem that the cost cost is high, the separation of two water cavities also causes the waste of heat energy.

The water heater volume control device that provides in the above prior art is installed in the purpose and the effect that all can't make this water heater realize producing steam on the water heater.

The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of simple in structure, and is cheap, the steam-type water heater volume control device that is suitable for producing in enormous quantities.

Steam-type water heater volume control device of the present utility model, comprise the aqueous vapor interstage valve, one end of aqueous vapor interstage valve is a gas control valve, the other end of aqueous vapor interstage valve is the diaphragm type hydroecium, the chamber of septum right side is equipped with water inlet pipe, the chamber of septum right side links to each other with outlet by behind the water temperature control valve, and the chamber of septum left side directly is connected with outlet; It is characterized in that: a bypass pipe is housed on the outlet, be equipped with flow control valve on the bypass pipe, the aperture scope of valve opening is to flow through 5%～70% of calibrational capacity in the water temperature control valve, and the aperture scope of valve opening is to flow through 0%～90% of calibrational capacity in the flow control valve on the bypass pipe.

Steam-type water heater volume control device of the present utility model, simple and reasonable for structure, be suitable for producing in enormous quantities, after adopting on the known water heater or this control device is installed, just can make this water heater change over a kind of water heater that can produce steam, not only installation and maintenance and easy to use, and under cold weather conditions, can produce the steam preheating bathroom, be adapted to the environment in the north, a tractor serves several purposes.

For introducing steam-type water heater volume control device of the present utility model in detail, be elaborated below in conjunction with accompanying drawing:

Fig. 1 is the structural representation that is equipped with the water heater of steam-type water heater volume control device of the present utility model.

Referring to Fig. 1 because control device of the present utility model is a crucial accessory in the water heater, so together provide its structure with whole water heater in the drawings, in the hope of illustrate better its architectural feature and and water heater other parts structure composition between correlation; Equally, when analyzing its architectural feature and function and effect,, narrated all sidedly in conjunction with the operation principle of water heater.

Steam-type water heater volume control device of the present utility model, comprise aqueous vapor interstage valve 10, one end of aqueous vapor interstage valve 10 is a gas control valve, the other end of aqueous vapor interstage valve is a diaphragm type hydroecium 101, the chamber of septum right side is equipped with water inlet pipe 8, the chamber of septum right side links to each other with outlet 41 by water temperature control valve 11 backs, and this outlet 41 is exactly the pipeline inlet that enters heat exchanger 4 in the whole water heater, and chamber of septum 101 left sides directly are connected with outlet 41; It is characterized in that: a bypass pipe 12 is housed on the outlet 41, be equipped with flow control valve 13 on the bypass pipe 12, the aperture scope of valve opening is to flow through 5%～70% of calibrational capacity in the water temperature control valve 11, and the aperture scope of valve opening is to flow through 0%～90% of calibrational capacity in the flow control valve on the bypass pipe.

After volume control device of the present utility model is applied to known water heater, whole water heater will comprise housing 1, burner 2, igniting and controlling organization 3, heat exchanger 4, air inlet pipe 5, intake valve 6, gas regulator 7, water inlet pipe 8, outlet pipe 9, aqueous vapor interstage valve 10, water temperature control valve 11, water inlet pipe 8 is connected to the right side of aqueous vapor interstage valve septation chambers 101 10, above-mentioned chamber of septum 101 right sides connect the inlet (be the outlet of of the present utility model volume control device this parts) of water temperature control valve 11 to heat exchanger 4, the left side of above-mentioned chamber of septum 101 is connected with the inlet of heat exchanger 4, the technology of this respect can have the water heater product of limit company referring to Zhongshan City, Guangdong Province Ai Lite combustion gas, based on the factor on the known technology, in the accompanying drawings, many architectural features only provide line chart, for housing 1, only schematically represented; Inventive point of the present utility model is to be equipped with a bypass pipe 12 on the inlet of heat exchanger 4, be equipped with flow control valve 13 on the bypass pipe 12, the aperture scope of valve opening is to flow through 5%～70% of calibrational capacity in the water temperature control valve 11, and the aperture scope of valve opening is to flow through 0%～90% of calibrational capacity in the flow control valve 13 on the bypass pipe 12.

The operation principle of water heater is as follows in the known technology: when using water heater, open the liquefied gas master switch of being installed, inlet valve, flowing water Valve, after water flows through water temperature control valve 11, resistance to water-flow forms differential water pressures in chamber of septum 101 left and right sides of aqueous vapor interstage valve 10, the water barrier film expands left, the valve rod 102 that promotes wherein moves to left, thereby promoting piston 103 moves to left, spring 104 shrinks, the air valve mouth is opened, valve rod 102 mechanical linkages ground drive shift fork 105 makes the switch closure in the ignition mechanism simultaneously, high-voltage generator 34 in the Pulse Electric ignition mechanism 3 sends circuit operation on the one hand, on the other hand magnetic valve (a kind of preferred version of intake valve) 6 once electric adhesive, intake valve 6 is opened, the pin 32 of lighting a fire simultaneously produces electrion with housing 1 on the burner 2, indicator lamp 33 is bright, combustible gas fire burns, flame detects the housing 1 of pin 35 and burner 2 by the flame conducting, magnetic valve 6 gets the electric voltage that makes and is maintained, this moment, electrion stopped, indicator lamp 33 extinguishes, and heat energy passes to cold water by water pipe on the heat exchanger 4 and heat transfer sheet; When flowing water Valve or inlet valve are closed, water barrier film left and right sides pressure differential in the chamber of septum 101 rapidly disappears, and piston 103 moves to right under the effect of spring 104, the intake valve port closure, cut off fuel gas path, valve rod 102 moves to right simultaneously, and promotion water barrier film resets and shift fork 105 moves to right, and switch is disconnected, magnetic valve 6 dead electricity reset, cut off fuel gas path, fray-out of flame, water heater quits work.

The blowout protection principle of this water heater is as follows: accident occurs as flame and extinguish, flame detects pin 35 and can't realize conducting by flame with the housing 1 of burner 2, and magnetic valve 6 loses to be kept voltage and reset, and cuts off fuel gas path automatically, guarantees safe handling.

The hypoxia protection principle of this water heater is as follows: as anoxycausis appears, flame is raised, flame detects pin 35 and can't realize conducting by flame with the housing 1 of burner 2; the magnetic valve dead electricity resets, and cuts off fuel gas path automatically, and fire extinguishes; water heater quits work, and guarantees personal safety.

Gas regulator 7 wherein and the flow size that water temperature control valve 11 can allow the user regulate the combustion G﹠W are respectively controlled separately, and the adjusting that cooperatively interacts can obtain desirable hot water temperature.

This water heater working principle is as follows: when the needs water heater produces steam, this situation is lower at temperature in the bathroom, earlier carry out preheating with steam, close the flow control valve 13 on the above-mentioned bypass pipe 12, promptly allow its aperture be 0, and the knob of water temperature control valve 11 is threaded to the high temperature place, even it is in the duty of aperture minimum, at this moment, because the overcurrent aperture of water temperature control valve is little in the water heater of the overcurrent opening ratio known technology of water temperature control valve 11, be controlled by the water yield in the water heater, thereby the water yield that flows through water heater during than the normal shower of known water heater the water yield of the condition of high temperature also lack, and firepower does not reduce, a spot of water is heated and vaporizes at water tank, become steam and come out from the hot water outlet splash, steam just generates.

When the normal shower of water heater is worked, knob with water temperature control valve 11 is threaded to low-temperature space or low-temperature zone on the one hand, at this moment, because the minimum aperture that the design of the overcurrent aperture of water temperature control valve 11 is subjected to need to produce steam limits, the overcurrent aperture of water temperature control valve 11 is little in the water heater of its maximum overcurrent opening ratio known technology, water yield supply also can be restricted, thereby minimum water temperature also can be than higher, for reaching the water temperature of normal shower, then need to replenish part discharge by bypass pipe 12, can outside the flow control valve on the bypass pipe 12 13, mark a desuperheat scale (scope that belongs to known technology, so on figure, do not mark), for example the temperature range on the water temperature control valve 11 is 50～100 degree, then the desuperheat scale of flow control valve 13 outer marks is-10～-40 degree, this scale can also can obtain by demarcation by calculating.

Above-mentioned bypass pipe 12 can be provided with separately, and also be connected with water inlet pipe (scheme among the figure) can install a check valve 121 on bypass pipe 12.

Be the security that guarantees to use, can a safe drain valve 106 be installed on the right side of above-mentioned chamber of septum 101.

Above-mentioned igniting and controlling organization 3 are preferably electric pulse igniting and controlling organization, and it comprises that igniting pin 31, flame detect pin 35, battery 31, high-voltage generator 34, indicator lamp 33.

Water heater for 5-8 raising of indices constant flow, best scheme is that the aperture scope of valve opening is to flow through 10%～40% of calibrational capacity in the above-mentioned water temperature control valve 11, and the aperture scope of valve opening is to flow through 0%～70% of calibrational capacity in the flow control valve 13 on the bypass pipe 12.The restriction that is subjected to the design of valve opening aperture scope to go up tolerant degree, can be designed to the aperture scope of valve opening in the above-mentioned water temperature control valve 11 for flowing through 15%～50% of calibrational capacity, the aperture scope of valve opening is designed to flow through 0%～65% of calibrational capacity in the flow control valve 13 on the bypass pipe 12 simultaneously, in the hope of the difficulty of reduction structural design and processing, in the utility model.

Adopt the water heater of volume control device of the present utility model to have compared with similar products following features:

1. at the in-built bypass pipe of gas heater, be connected with the water source or be connected with water inlet pipe, Well a check valve is installed therein, is made current single-phase mobile, can realize producing the purpose of steam, with employing The steam heated water heater of the two-way valve of labyrinth is compared, and has the saving raw material, reduces cost (because of what adopt Flow control valve and check valve are general type product on the market on sale) advantage.

2. this water heater structure is simple, and is easy for operation, and simple for assembly process, and detection method is simple, Be suitable for producing in enormous quantities.

Claims (5)

1, a kind of steam-type water heater volume control device, comprise the aqueous vapor interstage valve, one end of aqueous vapor interstage valve is a gas control valve, the other end of aqueous vapor interstage valve is the diaphragm type hydroecium, the chamber of septum right side is equipped with water inlet pipe, the chamber of septum right side links to each other with outlet by behind the water temperature control valve, and the chamber of septum left side directly is connected with outlet; It is characterized in that: a bypass pipe is housed on the outlet, be equipped with flow control valve on the bypass pipe, the aperture scope of valve opening is to flow through 5%～70% of calibrational capacity in the water temperature control valve, and the aperture scope of valve opening is to flow through 0%～90% of calibrational capacity in the flow control valve on the bypass pipe.

2, steam-type water heater volume control device according to claim 1 is characterized in that above-mentioned bypass pipe is connected with water inlet pipe.

3, steam-type water heater volume control device according to claim 1, the aperture scope that it is characterized in that valve opening in the above-mentioned water temperature control valve is to flow through 10%～40% of calibrational capacity, and the aperture scope of valve opening is to flow through 0%～70% of calibrational capacity in the flow control valve on the bypass pipe.

4, steam-type water heater volume control device according to claim 1, the aperture scope that it is characterized in that valve opening in the above-mentioned water temperature control valve is to flow through 15%～50% of calibrational capacity, and the aperture scope of valve opening is to flow through 0%～65% of calibrational capacity in the flow control valve on the bypass pipe.

5, steam-type water heater volume control device according to claim 1 is characterized in that being equipped with check valve in the above-mentioned bypass pipe.