CN101650069A - Instant electric water heater - Google Patents
Instant electric water heater Download PDFInfo
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- CN101650069A CN101650069A CN200810145704A CN200810145704A CN101650069A CN 101650069 A CN101650069 A CN 101650069A CN 200810145704 A CN200810145704 A CN 200810145704A CN 200810145704 A CN200810145704 A CN 200810145704A CN 101650069 A CN101650069 A CN 101650069A
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Abstract
本发明提供一种即热式电热水器，包括加热器(1)、与加热器(1)两端相连的冷水进水口(2)和热水出水口(3)，在冷水进水口(2)和热水出水口(3)之间设置一条与加热器(1)并联的支路(4)，该并联支路(4)中安装有电磁阀(5)，该电磁阀(5)的控制驱动电路的信号输入端与测量加热器(1)中水温的温度传感器(6)相连。通过温度传感器(6)控制并联支路(4)中电磁阀(5)的开关，使得在恢复使用热水时，加热器中被短时加热的高温水与并联支路中的冷水混合后排出，从而保证不会出现出水的瞬时高温。
The invention provides an instant electric water heater, which comprises a heater (1), a cold water inlet (2) connected to both ends of the heater (1) and a hot water outlet (3). A branch (4) connected in parallel with the heater (1) is set between the hot water outlet (3), and a solenoid valve (5) is installed in the parallel branch (4), and the control of the solenoid valve (5) The signal input terminal of the driving circuit is connected with the temperature sensor (6) for measuring the water temperature in the heater (1). The switch of the electromagnetic valve (5) in the parallel branch (4) is controlled by the temperature sensor (6), so that when the hot water is resumed, the short-term heated high-temperature water in the heater is mixed with the cold water in the parallel branch and discharged , so as to ensure that there will be no instantaneous high temperature of the water.
Description
Technical field
The present invention relates to a kind of instant electric water heater, be meant a kind of thermostatic instant heating formula electric heater especially.
Background technology
The instant electric water heater adopts electrically heated rod or electric heater that the water of flowing through is wherein heated.When Temporarily Closed water outlet in use, the water that retains in the heater can be heated to higher temperature in short-term, exceeds set water temperature usually more than 10 ℃.Therefore, when opening hot water again, the user can feel that one section current is arranged is boiling hotter, when serious even can cause scald.At this moment, the user often takes to allow the hot water sky flow one section method when opening hot water again, treats to continue shower again after water temperature is recovered normally.Caused the waste of the water and the energy like this.
Utility model ZL200420073895.3 discloses a kind of constant temp gas water heater, comprise cold water inlet, heater, mixing chamber and outlet pipe, heater communicates with mixing chamber, and mixing chamber is communicated with outlet pipe, between cold water inlet and mixing chamber, be provided with a cold water in parallel and store device with the heater pipeline, cold water stores device to be in charge of with cold water inlet by cold water and to link to each other, and also has to be arranged on mixing chamber and cold water and to store hydraulic valve between the device.When from user mode temporary close water, hydraulic valve is in high pressure conditions, and cold water is in charge of and is opened, and cold water enters cold water and stores device; When opening water once more, hydraulic valve is in low-pressure state, and cold water is in charge of and is closed, in the heater moment high-temperature water and the cold water that stores in the device of cold water enter mixing chamber simultaneously, mix back output, reached the effect of constant water temperature.
Yet,, can not guarantee that in actual use cold water stores water in the device and the mixed water temperature of the water in the heater near design temperature because the temperature of high-temperature water in the heater is indefinite.When interrupting the water time more in short-term, the water in the heater heats up little, and may cause water temperature low excessively after cold water mixes; And when interrupting the water time when longer, the water in the heater is heated to very high temperature, and may still have higher temperature after cold water mixes.In addition, cold water stores device need have certain capacity, therefore causes the water heater overall volume to increase, and can take bigger space when mounted.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of instant electric water heater, uses the moment high temperature that occurs water outlet when recover using to avoid being suspended at water heater.
The invention provides a kind of instant electric water heater, comprise heater, the cold water inlet and the hot water outlet that link to each other with the heater two ends, a branch road in parallel with heater is set between cold water inlet and hot water outlet, in this parallel branch magnetic valve is installed, the signal input part of the control drive circuit of this magnetic valve links to each other with the temperature sensor of water temperature in the HEATER FOR MEASURING.
Switch by with magnetic valve in the temperature sensor control parallel branch makes when recovering to use hot water, discharge after high-temperature water that is heated in short-term in the heater and the cold water mix in the parallel branch, thereby the TRANSIENT HIGH TEMPERATURE of water outlet can not appear in assurance.In addition, the volume of arm in parallel is very little, need not to take a lot of spaces.
Described magnetic valve is the multi-stag magnetic valve with at least two apertures.
Described magnetic valve can be rotary stop valve, and the control drive circuit of described magnetic valve rotarily opens required aperture according to the pulse signal control spool that temperature sensor sends.
Described magnetic valve also can be reciprocating type stop valve, and the control drive circuit of described magnetic valve is opened required aperture according to the pulse signal control valve heart yearn reciprocating motion that temperature sensor sends.
Can control cold water flow in the arm in parallel by the aperture that temperature sensor is controlled magnetic valve, make the temperature of cold water flow, thereby guarantee the constant of water temperature corresponding to hot water in the heater.
The signal input part of the control drive circuit of described magnetic valve also links to each other with the flow sensor of measuring the cold water inlet flow.
When turn-offing hot water, the hydraulic pressure in the heater makes the flow at cold water inlet place drop to zero rapidly, and at the cold water inlet place flow sensor being set can accurately and timely control magnetic valve.
Be provided with one between heater and the hot water outlet and mix the water box body, and link to each other with described parallel branch.
Flow to hot water outlet again by after mixing the water that retains in the water box body and high-temperature-hot-water or cold water mixing, avoided since flow asynchronous of the high-temperature-hot-water from heater with the cold water in the parallel branch and when mixing the moment high temperature or low temperature of appearance.
Description of drawings
Fig. 1 is the structural representation of electric heater first embodiment of the present invention;
Fig. 2 is the structural representation of electric heater second embodiment of the present invention.
The specific embodiment
As shown in Figure 1, instant electric water heater of the present invention comprises heater 1, the cold water inlet 2 and the hot water outlet 3 that link to each other with heater 1 two ends, is connected to shower nozzle or gondola water faucet 8 that shower is used on the hot water outlet 3.A branch road 4 in parallel with heater 1 is set between cold water inlet 2 and hot water outlet 3, magnetic valve 5 is installed in this branch road, the signal input part of the control drive circuit of this magnetic valve 5 links to each other with flow sensor 7 with temperature sensor 6.The flow sensor 7 of the temperature sensor 6 of HEATER FOR MEASURING delivery port temperature and measurement water inlet flow is controlled its switch by the control drive circuit of described magnetic valve 5.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
When bringing into use water heater, the valve 5 on the parallel branch 4 is in the original state of cutting out, so current only pass through heater 1 and are heated to predetermined temperature, and discharge from gondola water faucet 8 via hot water outlet 3 without branch road 4.
When the user is interrupted water, hydraulic pressure in the heater 1 makes the flow of inlet water of cold water inlet 2 be dropped rapidly to zero, flow sensor 7 detects this changes in flow rate, and sends the control drive circuit of a pulse signal to magnetic valve 5, thereby magnetic valve 5 is opened.
When the user reuses hot water, under the hydraulic pressure effect at cold water inlet 2 places, be heated to the hot water of high temperature and the cold water mix in the parallel branch 4 in the heater 1 in short-term after flow out from gondola water faucet 8 by hot water outlet 3.
Along with the outflow of high-temperature water in the heater 1, the water temperature value of heater 1 delivery port descends gradually.When the temperature that detects heater 1 delivery port when temperature sensor 6 returns to setting value, send the control drive circuit of a pulse signal, thereby magnetic valve 5 cuts out to magnetic valve 5.
Like this, just can control the switching of magnetic valve exactly the real-time detection of flow and temperature, thereby keep the constant of water temperature by sensor.Wherein, the measurement category of described temperature sensor can be 20 to 50 ℃, and the measurement category of described flow sensor can be 0 to 20 liter/minute.
Yet because the time that common user is interrupted water is indefinite, the temperature that remaining water raises in the heater 1 is also different, that is, when interrupting the water time more in short-term, the water in the heater 1 heats up lower, and when the interruption water time was longer, the water in the heater 1 was heated to higher temperature.But in the above-described embodiment, the flow of cold water but is certain in the arm 4 in parallel, this feasible inconstant problem of water temperature that still may produce.For instance, just open heavily again if the user only closes after the water very short time, the water temperature ascensional range in the heater 1 is not high at this moment, and has sneaked into the cold water of full flow after unlatching, causes leaving water temperature well below design temperature probably.
Based on the problems referred to above, improve in the embodiment at one of the present invention, omitted the flow sensor 7 shown in Fig. 1, and only 6 pairs of magnetic valves 5 of serviceability temperature sensor are controlled, in addition, described magnetic valve 5 is for having the multi-stag valve of a plurality of different apertures.
When the user was interrupted water in short-term, the water temperature in 6 pairs of heaters 1 of temperature sensor was monitored in real time, and was raised to different warm rank and controls magnetic valve 5 and be opened to different apertures according to waterborne.If water is heated to higher temperature continuously, then temperature sensor 6 control magnetic valves 5 open to maximum opening, thereby make the cold water mix of hot water with the big flow of higher temperature.If user's very fast unlatching after interrupting water, and water temperature only rises slightly, then temperature sensor 6 control magnetic valves 5 are only opened less aperture, thereby make the hot water of lower temperature and cold water mix than low discharge.
Described magnetic valve 5 can be rotary stop valve, and the pulse signal that the control drive circuit of magnetic valve sends according to temperature sensor is controlled described spool and rotarily opened required aperture.Described magnetic valve 5 also can be reciprocating type stop valve, and the control drive circuit of magnetic valve is opened required aperture according to the pulse signal control valve heart yearn reciprocating motion that temperature sensor sends.
By the aperture of temperature sensor 6 control magnetic valves 5, and then the cold water flow in the control parallel branch 4, the constant of leaving water temperature can be guaranteed better.
In addition, as shown in Figure 2, can also further be provided with one with hot water outlet 3 places and mix water box body 9, link to each other with described parallel branch 4 at described heater 1.Like this, flow through when coming, also can flow to hot water outlet 3 again by after mixing the water that retains in the water box body 9 and high-temperature-hot-water or cold water mixing even the cold water in high-temperature-hot-water from heater 1 and the parallel branch 4 is asynchronous.Like this, further avoided because flow asynchronous of the high-temperature-hot-water from heater 1 and the moment high temperature or low temperature that when mixing, occurs with the cold water in the parallel branch 4.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. instant electric water heater, comprise heater (1), the cold water inlet (2) and the hot water outlet (3) that link to each other with heater (1) two ends, it is characterized in that, a branch road (4) in parallel with heater (1) is set between cold water inlet (2) and hot water outlet (3), magnetic valve (5) is installed in this parallel branch (4), and the signal input part of the control drive circuit of this magnetic valve (5) links to each other with the temperature sensor (6) of water temperature in the HEATER FOR MEASURING (1).
2. electric heater according to claim 1 is characterized in that, the multi-stag magnetic valve of described magnetic valve (5) for having at least two apertures.
3. electric heater according to claim 2 is characterized in that, described magnetic valve (5) is rotary stop valve, and the control drive circuit of described magnetic valve rotarily opens required aperture according to the pulse signal control spool that temperature sensor (6) sends.
4. electric heater according to claim 2, it is characterized in that, described magnetic valve (5) is reciprocating type stop valve, and the control drive circuit of described magnetic valve is opened required aperture according to the pulse signal control valve heart yearn reciprocating motion that temperature sensor (6) sends.
5. electric heater according to claim 1 and 2 is characterized in that, the signal input part of the control drive circuit of described magnetic valve (5) also links to each other with the flow sensor (7) of measuring cold water inlet (2) flow.
6. electric heater according to claim 1 is characterized in that, also is provided with one between heater (1) and the hot water outlet (3) and mixes water box body (9), and link to each other with described parallel branch (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810145704A CN101650069A (en) | 2008-08-11 | 2008-08-11 | Instant electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810145704A CN101650069A (en) | 2008-08-11 | 2008-08-11 | Instant electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN101650069A true CN101650069A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810145704A Pending CN101650069A (en) | 2008-08-11 | 2008-08-11 | Instant electric water heater |
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| CN (1) | CN101650069A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829551A (en) * | 2012-08-09 | 2012-12-19 | 建德博艾斯智能科技有限公司 | Intelligent constant-temperature yielding water temperature regulating method |
| CN102853549A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Automatic temperature control water heater |
| CN104236066A (en) * | 2013-06-21 | 2014-12-24 | 青岛经济技术开发区海尔热水器有限公司 | Water heater |
| CN106225215A (en) * | 2011-04-01 | 2016-12-14 | 豪威株式会社 | Hot-water supply device and hot water Supply Method |
| CN110749109A (en) * | 2016-01-04 | 2020-02-04 | 湖南工业大学 | A method for calculating control signal of gas proportional control valve of gas water heater |
| CN111425911A (en) * | 2020-04-16 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Thermoelectric decoupling system of heat exchange and heat storage tank and working method |
| CN111828706A (en) * | 2020-06-18 | 2020-10-27 | 宋彤云 | Cold and hot control valve regulation and control system and method applying opening degree detection |
| CN112032997A (en) * | 2020-07-22 | 2020-12-04 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method thereof |
-
2008
- 2008-08-11 CN CN200810145704A patent/CN101650069A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225215A (en) * | 2011-04-01 | 2016-12-14 | 豪威株式会社 | Hot-water supply device and hot water Supply Method |
| CN102829551A (en) * | 2012-08-09 | 2012-12-19 | 建德博艾斯智能科技有限公司 | Intelligent constant-temperature yielding water temperature regulating method |
| CN102829551B (en) * | 2012-08-09 | 2015-01-14 | 建德博艾斯智能科技有限公司 | Intelligent constant-temperature yielding water temperature regulating method |
| CN102853549A (en) * | 2012-08-18 | 2013-01-02 | 顾长相 | Automatic temperature control water heater |
| CN104236066A (en) * | 2013-06-21 | 2014-12-24 | 青岛经济技术开发区海尔热水器有限公司 | Water heater |
| CN110749110A (en) * | 2016-01-04 | 2020-02-04 | 湖南工业大学 | Circuit for controlling on-off and flow of gas for gas water heater |
| CN110749109A (en) * | 2016-01-04 | 2020-02-04 | 湖南工业大学 | A method for calculating control signal of gas proportional control valve of gas water heater |
| CN110749109B (en) * | 2016-01-04 | 2021-02-26 | 湖南工业大学 | Method for calculating control signal of gas proportional control valve of gas water heater |
| CN110749110B (en) * | 2016-01-04 | 2021-02-26 | 湖南工业大学 | Circuit for controlling on-off and flow of gas for gas water heater |
| CN111425911A (en) * | 2020-04-16 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Thermoelectric decoupling system of heat exchange and heat storage tank and working method |
| CN111828706A (en) * | 2020-06-18 | 2020-10-27 | 宋彤云 | Cold and hot control valve regulation and control system and method applying opening degree detection |
| CN112032997A (en) * | 2020-07-22 | 2020-12-04 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method thereof |
| CN112032997B (en) * | 2020-07-22 | 2022-04-22 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater and control method thereof |
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Application publication date: 20100217 |