CN2223828Y

CN2223828Y - Water heater with sectionally heating device automatically

Info

Publication number: CN2223828Y
Application number: CN 95204816
Authority: CN
Inventors: 林义华
Original assignee: AIKUAI ENTERPRISE Co Ltd
Current assignee: AIKUAI ENTERPRISE Co Ltd
Priority date: 1995-02-28
Filing date: 1995-02-28
Publication date: 1996-04-03
Anticipated expiration: 2005-02-28

Abstract

The utility model relates to a water heater with an automatic sectionally heating device, which comprises a set of water pressure inlet valve and pressure difference gas control valve, and a fuel gas valve body, wherein the water pressure inlet valve is communicated with the pressure difference gas control valve. The fuel gas valve body is provided with a fuel gas inlet, a pressure difference chamber and a gas outlet valve. The pressure difference gas control valve which is arranged on the gas outlet valve is normally closed. A sectional fuel gas valve is arranged on the channel of the gas outlet valve. A sectional processor which can control the sectional fuel gas valve to be opened and closed according to the inlet water temperature is arranged on the water heater. The flow capacity of the fuel gas of the water heater is controlled by the sectional processor to make the water heater deliver hot water with proper temperature. When the temperature of the water flow is changed, the water heater with an automatic sectionally heating device can provide hot water with proper temperature for use.

Description

Water heater with automatic segmentation heater

The utility model relates to a kind of water heater, particularly relates to a kind of water heater with automatic segmentation heater, and it can effectively control water temperature as required.

Though water heater in the past can provide hot water, but in the process of using, can't preestablish the water temperature of hot water, can only be by regulating gas adjustment valve to set gas flow, fixing current heating is produced certain temperature, when inflow temperature changed, then the hot water temperature that water heater provided will produce sometimes hot and sometimes cold variation.The water source of water heater is through outer pipeline and be embedded in interior pipeline in the wall by water tower, heat in the water heater and be delivered to, therefore, when water source this transfer pipeline of process, because of making water temperature, the heat conduction changes easily, particularly be arranged on the water source of outdoor water tower inside, because of being subjected to the influence of outdoor difference variation, the more direct variation that has influence on the water heater inflow temperature.

Because the conduction of the heat in the above-mentioned water source transfer pipeline, institute causes water heater inflow temperature difference, so under the constant situation of the combustion gas gas output condition of water heater in the past, the user must adjust gas control valve repeatedly, could obtain desirable hot water temperature, so, it is not only inconvenient to adjust gas control valve repeatedly, again accurate constant temperature.And, if do not adjust gas control valve, use in the mode of cold water mix hot water, improperly make cold water too much or very little when adjusting a little, similarly also can make water temperature sometimes hot and sometimes cold, use more inconvenient.

The purpose of this utility model is to provide a kind of water heater with automatic segmentation heater that can control the gas-flow output of water heater according to the variation of water temperature, it can make water heater that current are suitably heated, so that the hot water that the water heater output temperature is fit to makes things convenient for the user to use.

Of the present utility model being characterised in that: but this water heater automatic segmentation heating, it has the segment processor and the segmentation gas valve by segment processor control that are located on the water heater, this segment processor can produce the segmentation control signal according to the difference of actual water temperature and set water temperature, this segmentation gas valve can receive this segmentation control signal and basis signal action, and the gas flow of control water heater makes the stable and suitable use of hot water output temperature of water heater.

The utlity model has following effect: the utility model is owing to be provided with segment processor and by the segmentation gas valve of its control, can make the hot water temperature of output stable, so that use according to the flow of going into coolant-temperature gage control combustion gas on water heater.

Below by most preferred embodiment and accompanying drawing the water heater with automatic segmentation heater of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the structural representation of the utility model preferred embodiment.

Fig. 2 is the partial sectional view of the utility model preferred embodiment.

Fig. 3 is the structure calcspar of the utility model preferred embodiment segment processor.

Fig. 4 is the circuit diagram of the utility model preferred embodiment segment processor.

Fig. 5 is the action flow chart of the utility model preferred embodiment.

Fig. 6 is the partial sectional view of another preferred embodiment of the utility model.

As shown in Figure 1, 2, be the structural representation and the partial sectional view of the utility model preferred embodiment, this water heater comprises that the main burner of a

heating water tank

10,11, one can light the fire guider 12 of main burner 11, high-voltage ignition device 13, one group of the hydraulic pressure intake valve 14 that is connected, pressure reduction control valve 15 and gas valve body 16 (as shown in Figure 2).Be arranged with cold water inlet 101 and hot water outlet pipe 102 on the heating water tank 10, cold water inlet 101 communicates with hydraulic pressure intake valve 14, and high-voltage ignition device 13 comprises assemblies such as microswitch (figure do not show), cigar lighter 131, flame detector 132 (this is identical with in the past structure).As shown in Figure 2, gas valve body 16 is provided with import 161, pressure reduction chamber 162 and gives vent to anger valve 163.Pressure reduction control valve 15 is located on the valve 163 of giving vent to anger and has a valve plug 151, and valve plug 151 is controlled by a magnetic valve L1, uses air valve 163 and is normally off.Valve 163 to the passage of main burner 11 of giving vent to anger is provided with a segmentation gas valve 17, in the present embodiment, segmentation gas valve 17 has the two section valves 171,172 of exportable combustion gas to main burner 11, these two sections valves 171,172 are provided with respectively by magnetic valve L2, L3 control and make valve 171,172 be the valve plug 173,174 of normally open, the switch of two sections valves 171,172 control by this can change the gas flow that flow to main burner 11.As shown in Figure 1, on water heater, be provided with a segment processor 18.

Shown in Fig. 3,4, be the structure calcspar and the circuit diagram of segment processor 18, segment processor 18 comprises power circuit 181, temperature detector circuit 182, temperature setting circuit 183, temperature difference comparison circuit 184 and control circuit 185.Power circuit 181 connects power supply, make segment processor 18 actions, temperature detector circuit 182 is connected with water inlet pipe 101, utilize thermistor 1821 to detect inflow temperature on the water inlet pipe 101, temperature difference comparison circuit 184 is made up of an operational amplifier 1841, it can be compared the setting value of temperature setting circuit 183 with the value of detecting of temperature detector 182, and export a signal to control circuit 185, then the comparative result analysis of temperature difference comparison circuit 184 suitably can be controlled magnetic valve L2, the L3 action of segmentation gas valve 17 burnt gas valves 171,172.

As shown in Figure 5, it is the action flow chart of the utility model preferred embodiment, and cooperation Fig. 1,2, when the water heater start is used, the tap back current of fetching boiling water will enter cold water inlet 101 and pass through hydraulic pressure intake valve 14, the water pond barrier film 141 that makes hydraulic pressure intake valve 14 by the pressure of current is jack-up and interlock water pond push rod 142 jack-up upwards upwards, and the air inlet piston 164 of gas valve body 16 is opened, make combustion gas enter in the valve body 16 and flow into pressure reduction chamber 162, external and internal pressure variation through differential pressure control valve 15 makes 151 actions of magnetic valve L1 control valve plug, open and use air valve 163, so, combustion gas is flowed out from pressure reduction chamber 162 through the valve 163 of giving vent to anger, and wherein a part flows directly to main burner 11, and another part then flows to segmentation gas valve 17.Simultaneously, microswitch is pushed open and is made high-voltage ignition device 13 obtain power supply, and cigar lighter 131 is to fire guider 12 discharge ignitings, utilize flame detector 132 detect igniting finished signal and send high-voltage ignition device 13 back to and stop the igniting, as shown in Figure 5, and cooperation Fig. 3,4, at this moment, the temperature detector circuit 182 of segment processor 18 will detect water temperature and send the value of detecting back to, compare with the temperature setting of temperature setting circuit 183 via temperature difference comparison circuit 184, analyze the big or small and positive and negative of temperature difference comparative result via control circuit 185 again, with 17 actions of control segmentation gas valve, if temperature difference comparative result is that design temperature is greater than actual water temperature (temperature difference is not more than 20 ℃ (containing)), the magnetic valve L2 of segmentation gas valve 17 then, L3 will make valve plug 173,174 are failure to actuate and keep two sections valves 171,172 are normally open, when design temperature during less than actual water temperature, the magnetic valve L2 of segmentation gas valve 17 then, L3 will make valve plug 173,174 actions and make two sections valves 171,172 close, on the contrary, when design temperature is a bit larger tham actual water temperature (temperature difference is between 10 ℃ of (not containing)-20 ℃ (containing)), then 18 of segment processor can allow the magnetic valve L2 (or L3) of segmentation gas valve 17 order about valve plug 173 (or 174) action, valve 171 (or 172) is closed, flow to the flow of main burner 11 with the control combustion gas, current are carried out the heating of uniform temperature, about the action of segmentation gas valve 17 and the control of gas flow, the data that can consult following table show.25 ℃ of second section valves of first section valve 171,172 turn-on flow rate, 100% temperature rise 171 open, 172 to close that 20 ℃ of the 3rd section valves 171 of flow 80% temperature rise are closed, 15 ℃ of the 4th section valves 171,172 of 172 turn-on flow rate, 60% temperature rise are closed 10 ℃ of flow 40% temperature rises as can be known listed by last table, the valve 163 of giving vent to anger can flow out the combustion gas of 100% flow, but have only 40% bare flow can flow directly to main burner 11, remaining 60% is valve 171,172 controls by segmentation burner valve 17.

For example, when set water temperature is 40 ℃, and actual water temperature is when being 23 ℃, and the temperature difference is 17 ℃, and segment processor 18 will be carried out above-mentioned second section heating mode this moment, and elevate the temperature 20 ℃, so the hot water of water heater supply temperature about 43 ℃ at this moment.

As shown in Figure 6, it is the partial sectional view of another preferred embodiment of the utility model, the structure of present embodiment and a last embodiment are roughly the same, institute's difference is in the flow passage structure of two sections valves 271,272 of segmentation gas valve 27, but equally make valve 271, the 272 also switch in good time that is normally off by magnetic valve L2,273,274 actions of L3 control valve plug, just can control the gas-flow output of water heater, and current be carried out the heating of certain temperature rise.

The utility model water heater can be intake water temperature height via segment processor detect with design temperature relatively after, control segmentation burner valve events, make water heater that suitable gas-flow output be arranged, and current are done an amount of temperature rise, so even the current temperature changes, still can make the temperature of the hot water that water heater provides be fit to people and use, can avoid the waste of combustion gas simultaneously by the control of gas flow.

In sum, the water heater with automatic segmentation heater of the present utility model, certain controlled gas-flow output that heats hydrophone, and make water heater export the hot water of uniform temperature, use with convenient.

Claims

1, a kind of water heater with automatic segmentation heater, comprise one group of hydraulic pressure intake valve that is connected and pressure reduction control valve and gas valve body, this gas valve body is provided with fuel gas inlet, pressure reduction chamber and the valve of giving vent to anger, and this pressure reduction control valve is located on the valve of giving vent to anger and is normally off, it is characterized in that:

The passage of the described valve of giving vent to anger is provided with the segmentation gas valve; Water heater also is provided with a segment processor that is connected and just controls according to the water inlet water temperature switch motion of described segmentation gas valve with water inlet pipe.

2, the water heater with automatic segmentation heater as claimed in claim 1 is characterized in that:

Described segmentation gas valve has two sections valves and is normally open.

3, the water heater with automatic segmentation heater as claimed in claim 1 is characterized in that:

The temperature difference comparison circuit that described segment processor comprises power circuit, temperature setting circuit, detects the temperature detector circuit of the inflow temperature of water heater, the setting value of described temperature setting circuit is compared with the value of detecting of described temperature detector and with the comparative result analysis of described temperature difference comparison circuit control circuit with the switch motion of controlling described segmentation gas valve.