CN201016529Y

CN201016529Y - Water heater automatic thermostatic control apparatus

Info

Publication number: CN201016529Y
Application number: CNU2007201060931U
Authority: CN
Inventors: 王海平
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2008-02-06
Anticipated expiration: 2017-02-01

Abstract

The utility model relates to a heater automatic constant-temperature control device, including a shell (1), two control valves arranged in the shell (1), which are a gas control valve and a water temperature regulating valve. The gas control valve is provided with a mixing water chamber (2) and a combustion chamber (3), the combustion chamber (3) is provided with a gas inlet (31) and a gas outlet (32), and a spool (41) of a valve (4) arranged in the combustion chamber (3) is connected with a first thermal expansion inductive rod (6) through a first pushing bar (5). The water temperature regulating valve is provided with a cavity (7), the cavity (7) is communicated with the mixing water chamber (2) through a mixing water channel (8), the cavity (7) is provided with a cold water inlet (71) and a hot water inlet (72), as well as a second thermal expansion inductive rod (9) inside, and the mixing water channel (8) is arranged below the cold water inlet (71) and the hot water inlet (72). The utility model is a heater automatic constant-temperature control device with higher accuracy of water temperature control and more reliable use.

Description

The water heater automatic thermostatic controller

Technical field

The utility model relates to a kind of water heater automatic thermostatic controller.

Background technology

Gas heater has generally comprised the aqueous vapor linked switch, gas electromagnetic valve and water temperature control device, water temperature control device mainly is guarantee water temperature constant, existing water temperature control device adopts computer mostly, parts such as motor and gear structure, it is that the Chinese utility model patent " water temperature control device of gas heater " of ZL99239346.9 (notification number is CN2392131Y) has disclosed a kind of such structure that one patent No. is arranged, comprise gas regulator, gas regulator comprises control motor and decelerator, be connected with rotary spool on the output shaft of decelerator, the rotary spool upper sleeve gasket is provided with valve seat, and the side of valve seat is provided with gas inlet; This device can be controlled the leaving water temperature of gas heater quantitatively, no matter be before water, still can both make leaving water temperature reach consistent rapidly with user's design temperature in water.Also having a patent No. is that the Chinese utility model patent " gas heater automatic constant-temperature discharging device " of ZL97207548.8 (notification number is CN2298480Y) has disclosed a kind of such structure, and it is sleeved on a cooling-water temperature sensor that is made of the flexible bag of temperature-sensitive, expansion link, guide plate, back-moving spring, indicating arm, temperature selective pan and temperature display panel on the hot water outlet pipe of water heater.Simultaneously an electrical ball valve that is made of small size motor, decelerator, output gear, ball valve switch gear and ball valve is serially connected in that institute forms on the gas inlet pipe of water heater.This device is not only easy to use, simple to operate, safe and reliable, water temperature can arbitrarily be set, and water temperature just can be continual and steady once setting, and guarantees water heater automatic constant-temperature water outlet all the time.

There are some defectives in above-mentioned two patents, as operational motion the variation of leaving water temperature are had hysteresis, and the temperature error of leaving water temperature and its setting is bigger, and its structure is complicated in addition, job stability is bad.

At above-mentioned present situation, it is that the Chinese utility model patent " control device of gas heater " of ZL200520014491.1 (notification number is CN2819116Y) has disclosed a kind of such structure that one patent No. is arranged, constituted by aqueous vapor linked switch, gas electromagnetic valve and thermostatically-controlled equipment, wherein thermostatically-controlled equipment is by two control valves that are set up in parallel on a shell, be that gas quantity control valve and leaving water temperature control valve constitute, the concrete formation of thermostatically-controlled equipment is: two axis are arranged in housing, be furnished with the gas quantity control valve on the axis; Be furnished with the leaving water temperature control valve on another axis.Avoided the anxiety of valve issuable seepage when connecting of two divisions, and favourable energy savings, manufacturing, installation cost reduced.This structure has also improved the integrated level of the control device of gas heater, and security, reliability are higher, more helps improving standard and makes its versatility in the gas heater of different model stronger.

But also there is certain defective in above-mentioned patent, the thermal expansion part is by the induction to water temperature during work, and produce corresponding swell increment, gas valve body was tending towards cutting little combustion gas flux and enlarges the cold water input when heat-swelling element expanded, because the passage that is communicated with gas quantity control valve and leaving water temperature control valve is between hot water inlet and cooling water inlet, event is not fully mixed from the hot water of hot water inlet inflow with from the cold water that cooling water inlet flows into just to be entered in the gas valve body, so the water temperature that enters in the gas valve body then is unsettled, heat-swelling element in the gas valve body is flow into the current Temperature Influence instability in the gas valve body like this, it is bigger to fluctuate, so the expansion of thermal expansion part can not accurately reflect water temperature, the precision of control water temperature is not high.

Summary of the invention

Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of water temperature control accuracy higher, use more reliable water heater automatic thermostatic controller.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of water heater automatic thermostatic controller, include a shell, and be set side by side with two control valves in the shell, be respectively gas quantity control valve and leaving water temperature control valve; The gas quantity control valve has the mixing hydroecium and the fuel chamber of sealing each other, have fuel gas inlet and gas outlet in the fuel chamber, the spool that is arranged on the valve body of fuel chamber links to each other with the first thermal expansion inductive rod through first push rod, it is indoor that the first thermal expansion inductive rod is positioned at mixing water, mixing hydroecium has outlet to draw outside the housing, the first thermal expansion inductive rod expanded by heating or catch a cold when shrinking, the spool on the valve body is tending towards cutting little combustion gas flux or enlarges the combustion gas flux; Has chamber on the leaving water temperature control valve, chamber communicates with above-mentioned mixing hydroecium by a mixing water passage, have cooling water inlet and hot water inlet on the chamber, be provided with the second thermal expansion inductive rod in the chamber, the movement of valve that is positioned at chamber links to each other with the second thermal expansion inductive rod and also can move with the second thermal expansion inductive rod, second thermal expansion inductive rod upper end links to each other with adjusting device, and movement of valve is tending towards cutting little hot water input and enlarges the cold water input during the second thermal expansion inductive rod expanded by heating; It is characterized in that described mixing water passage is positioned at the below of cooling water inlet and hot water inlet.

Above-mentioned mixing water passage is good with the bottom that is arranged on chamber, and takes the shape of the letter U.Can make like this to flow into the indoor water of mixing water and mix more fully, water temperature is more stable.

For guaranteeing under the lower situation of adjustment, also to have the gas supply of capacity, have a base unit weight blast tube that communicates with fuel gas inlet and gas outlet all the time on the above-mentioned valve body that is positioned at fuel chamber.Even it is lower in adjustment like this, perhaps under the environment temperature condition with higher, spool too cuts little combustion gas flux, make the combustion gas flux very few, under the state that the base unit weight blast tube is arranged, it has guaranteed that all the time a certain amount of combustion gas is supplied to gas heater by gas outlet, and then has guaranteed that gas heater can not stop working.

Above-mentioned adjusting device includes two adjusting screw(rod)s that are arranged in the shell upper end, one of them adjusting screw(rod) links to each other with the upper end of the first thermal expansion inductive rod, another adjusting screw(rod) links to each other with the upper end of the second thermal expansion inductive rod, above-mentioned two adjusting screw(rod)s are multiple thread and left rotation and right rotation each other, on two adjusting screw(rod)s, a gear is installed respectively and is meshing with each other, on an adjusting screw(rod) knob is installed therein.

Compared with prior art, advantage of the present utility model is: it will be communicated with the below that the mixing water passage that mixes hydroecium and chamber is arranged on cooling water inlet and hot water inlet, so can guaranteeing to flow into the indoor water of mixing water, it in chamber and mixing water passage, fully mixes, the water temperature of current that flows through the mixing water passage like this is very stable, can not produce fluctuation, therefore the first expansion inductive rod can induce definite water temperature, and make corresponding expansion, guaranteeing has suitable gas quantity to pass through gas outlet.

Description of drawings

Fig. 1 is the structure cutaway view (adjustment state one) of the utility model embodiment;

Fig. 2 is the structure cutaway view (adjustment state two) of the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1～2, a kind of water heater automatic thermostatic controller, include a shell 1 with copper or the casting of other alloy material, be processed with two column cavitys according to two parallel axis, in these two cavitys, respectively be provided with the adjusting device that a control valve and has adjusting screw(rod) 11,12, one of them control valve is the gas quantity control valve, and another control valve is the leaving water temperature control valve;

The gas quantity control valve has the mixing hydroecium 2 and the fuel chamber 3 of sealing each other, mixing hydroecium 2 and fuel chamber 3 is the part of one of them column cavity, mixing hydroecium 2 is positioned at the top of fuel chamber 3, in fuel chamber 3, have fuel gas inlet 31 and gas outlet 32, fuel gas inlet 31 and gas outlet 32 communicate with each other, the spool 41 that is arranged on the valve body 4 of fuel chamber 3 links to each other with the first thermal expansion inductive rod 6 through first push rod 5, spool 41 valve body 4 relatively moves up and down, the mobile size that can control the combustion gas flux of spool 41, sealing ring 16 sealings are arranged between push rod 5 and the column cavity, to prevent that combustion gas from mixing mutually with hot water, be supported with spring 17 between spool 41 and fuel chamber 3 bottoms, so that spool 41 resets, the induction part of the first thermal expansion inductive rod 6 is positioned at and mixes hydroecium 2, mixing hydroecium 2 has outlet 21 to draw outside the housing 1, this outlet 21 is the outlet of the mixing water of supply constant temperature, the first thermal expansion inductive rod, 6 upper ends link to each other with adjusting screw(rod) 11, during the first thermal expansion inductive rod, 6 expanded by heating or the contraction of catching a cold, spool 41 on the valve body 4 can move down to be tending towards cutting little combustion gas flux or expansion combustion gas flux by relative valve body 4, on valve body 4, also have a base unit weight blast tube 42 that communicates with fuel gas inlet 31 and gas outlet 32 all the time, base unit weight blast tube 42 can design as required, adjusting screw(rod) 11 is a multiple thread, the part that passes shell 1 at adjusting screw(rod) 11 is connected with driving gear 13, and a knob 15 is installed on adjusting screw(rod) 11;

Has chamber 7 on the leaving water temperature control valve, this chamber 7 is the column chamber, chamber 7 mixes water channel 8 by one and communicates with above-mentioned mixing hydroecium 2, have cooling water inlet 71 and hot water inlet 72 on the chamber 7, be provided with the second thermal expansion inductive rod 9 in the chamber 7, the movement of valve 10 that is positioned at chamber 7 links to each other with the second thermal expansion inductive rod 9 and also can move with the second thermal expansion inductive rod 9, moving down of movement of valve 10 can make cooling water inlet 71 enlarge, and hot water inlet 72 is dwindled, move on the movement of valve 10 hot water inlet 71 is enlarged, and cooling water inlet 72 is dwindled, has the passage that is communicated with cooling water inlet 71 and hot water inlet 72 on the movement of valve 10, seal by sealing ring 18 between movement of valve 10 and chamber 7 inwalls, so that chamber 7 is divided into two parts, hot water inlet 72 is positioned at the bottom of movement of valve 10, cooling water inlet 71 is positioned at the top of movement of valve 10, the induction part of the second thermal expansion inductive rod 9 is positioned at the bottom of movement of valve 10, the second thermal expansion inductive rod, 9 bottoms are provided with spring base 19, spring base 19 chamber 7 relatively moves up and down, back-moving spring 20 between spring base 19 bottoms and chamber 7 bottoms, movement of valve is tending towards cutting little hot water input and enlarges the cold water input during the second thermal expansion inductive rod, 9 expanded by heating, the mixing water channel 8 is positioned at the below of cooling water inlet 71 and hot water inlet 72, promptly in the bottom of chamber 7, and be roughly U-shaped, the second thermal expansion inductive rod, 9 upper ends are passed movement of valve 10 backs and are linked to each other with adjusting screw(rod) 12, adjusting screw(rod) 12 is a multiple thread, the part that passes shell 1 at adjusting screw(rod) 12 is connected with driven gear 14, driving gear 13 and driven gear 14 are meshing with each other, above-mentioned two adjusting screw(rod)s 11,12 left rotation and right rotation each other.

During use, fuel gas inlet 31 is linked to each other with feeder, then (it is a known technology to gas outlet 32 with the heater of gas heater, do not have in the drawings to show) inlet end be communicated with, the hot water outlet of heater is communicated with hot water inlet 72 on the chamber 7, and the cooling water inlet 71 on the chamber 7 links to each other with the water service device.

Operation principle of the present utility model and process are:

After regulating leaving water temperature by knob 15, when the cold water temperature that enters from cooling water inlet 71 has fluctuation, the second thermal expansion inductive rod 9 can correspondingly expand, because the second thermal expansion inductive rod, 9 upper ends and adjusting screw(rod) 12 are fixing, can drive after such second thermal expansion inductive rod 9 expands that movement of valve 10 moves down or on move, cooling water inlet 71 is enlarged or dwindle, hot water inlet 72 is corresponding to be dwindled or enlarges and make, the temperature maintenance that guarantees hot water and the abundant mixed current of cold water is constant, because the fluctuating temperature of mixing water is little more stable, when mixing water enters in the mixing hydroecium 2 by mixing water channel 8, temperature mixing water more stably enters in the mixing hydroecium 2, the first thermal expansion inductive rod 9 can accurately be responded to adjusted good temperature, corresponding expansion or contraction, come the amount of movement of regulating spool 41, allow suitable gas quantity pass through gas outlet to play, and enter in the combustion chamber of water heater, be its fine setting effect of passing through the first thermal expansion inductive rod 6 and the second thermal expansion inductive rod 9, and then guarantee from exporting 21 water termostats that flow out.

Claims

1. a water heater automatic thermostatic controller includes a shell (1), is set side by side with two control valves in the shell (1), is respectively gas quantity control valve and leaving water temperature control valve;

The gas quantity control valve has the mixing hydroecium (2) and the fuel chamber (3) of sealing each other, have fuel gas inlet (31) and gas outlet (32) in the fuel chamber (3), the spool (41) that is arranged on the valve body (4) of fuel chamber (3) links to each other with the first thermal expansion inductive rod (6) through first push rod (5), the first thermal expansion inductive rod (6) is positioned at mixes hydroecium (2), mixing hydroecium (2) has outlet (21) to draw outside the housing (1), the first thermal expansion inductive rod (6) upper end links to each other with adjusting device, first thermal expansion inductive rod (6) expanded by heating or catch a cold when shrinking, the spool (41) on the valve body (4) is tending towards cutting little combustion gas flux or enlarges the combustion gas flux;

Has chamber (7) on the leaving water temperature control valve, chamber (7) communicates with above-mentioned mixing hydroecium (2) by a mixing water passage (8), have cooling water inlet (71) and hot water inlet (72) on the chamber (7), and in chamber (7), be provided with the second thermal expansion inductive rod (9), the movement of valve (10) that is positioned at chamber (7) links to each other with the second thermal expansion inductive rod (9) and also can move with the second thermal expansion inductive rod (9), the second thermal expansion inductive rod (9) upper end links to each other with adjusting device, and movement of valve (10) is tending towards cutting little hot water input and enlarges the cold water input during second thermal expansion inductive rod (9) expanded by heating;

It is characterized in that described mixing water passage (8) is positioned at the below of cooling water inlet (71) and hot water inlet (72).

2. water heater automatic thermostatic controller according to claim 1 is characterized in that described mixing water passage (8) is positioned at the bottom of chamber (7), and takes the shape of the letter U.

3. water heater automatic thermostatic controller according to claim 1 is characterized in that having a base unit weight blast tube (42) that communicates with fuel gas inlet (31) and gas outlet (32) all the time on the described valve body (4) that is positioned at fuel chamber (3).

4. water heater automatic thermostatic controller according to claim 1, it is characterized in that described adjusting device includes two adjusting screw(rod)s (11 that are arranged in shell (1) upper end, 12), one of them adjusting screw(rod) (11) links to each other with the upper end of the first thermal expansion inductive rod (6), another adjusting screw(rod) (12) links to each other with the upper end of the second thermal expansion inductive rod (9), above-mentioned two adjusting screw(rod)s (11,12) be multiple thread and left rotation and right rotation each other, at two adjusting screw(rod)s (11, one gear (13 respectively is installed 12), 14) and be meshing with each other, on the adjusting screw(rod) (11) knob (15) is installed therein.