CN1280279A - Electric thermostatic tubular water heater - Google Patents
Electric thermostatic tubular water heater Download PDFInfo
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- CN1280279A CN1280279A CN 00117254 CN00117254A CN1280279A CN 1280279 A CN1280279 A CN 1280279A CN 00117254 CN00117254 CN 00117254 CN 00117254 A CN00117254 A CN 00117254A CN 1280279 A CN1280279 A CN 1280279A
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Abstract
The electric water heater has one heater comprising serveral cascade thin hollow metal plate heat absorbers, and heating bodies between two adjacent heat absorbers and with metal electrodes insulated from the heat absorbers and connected to power supply via edge terminals; one control circuit including power circuit, temperature setting circuit, temperature detecting circuit, temperature display, window comparator, power regulator circuit and water flow sensing switch; and one filtering safety valve inside the water inlet pipe. The present invention has the features of large heating area, high heat converting efficiency, fast temperature raise, high reliability, excellent power saving and environment protecting effect. etc.
Description
The present invention relates to a kind of water heater, particularly relate to a kind of water and flow through the electric thermostatic tubular water heater that can heat.
At present, water heater mainly contains following two big classes: a class is that combustion gas is Instant heating type, and this class water heater causes its thermal conversion rate low because of its mode of heating, can produce pernicious gas in the use, contaminated environment, and inflammable, explosive, easily cause human casualty accident.This for this reason water heater is eliminated.And during the current forced-ventilated gas water heater exhaust of generally using, easily produce negative pressure, and noise is big.So only should use, but central hot water apparatus mode causes water resource waste serious as central heater; Another kind of is the electric heating storage-type.Its defective is that volume is big, and it is many to take up room, and preheating time is long, can not use continuously, and heat leaks very big.Existing electric thermostatic type water heater is owing to using traditional exothermic material to cause thermal conversion rate low, and service life is not long, and problem such as in use, corrosion can appear in heating, easily leaks electricity, and safety coefficient is not high.Since the semiconductor exothermic material comes out, multiple semiconductor liquid heater has also appearred, and its great majority are small-sized water tank type.Can't produce in batches owing to its design problem.Therefore in fact the semiconductor liquid heater is not fully used.
Aspect the control circuit of water heater, present state-of-the-art combustion type constant-temperature hot water device has adopted the fuzzy control circuit, and after temperature was set, the water that heating is come out is not subjected to discharge or the energy is unsettled influences, reach the purpose of constant temperature, low when high when having avoided water temperature human body is damaged.But, it can not get comprehensively promoting the use of owing to costing an arm and a leg.The electrothermal water heater has water tank, and the water convection current is bad, does not reach the constant temperature effect, thereby also fails effectively to be developed and use.
In addition, on existing water heater product, screen pack and safety valve are installed in respectively on the water inlet and delivery port of water heater, and its defective is the manufacturing cost height, and aesthetic property is poor, trouble is installed, and wastes energy.Above-mentioned defective has hindered the development of water heater greatly.
The objective of the invention is to for solving the problems referred to above of existing water heater, and provide a kind of heating surface (area) (HS big, thermal conversion rate height, liquid heat up rapidly, and be safe and reliable, has the electric thermostatic tubular water heater of good energy-conservation and environment protecting;
The present invention also aims to this water heater provides one can accurately control water temperature, can regulate the power of firing equipment automatically according to the water temperature of setting, safe and reliable, stable performance, the life-span is long, and is easy to use, the control circuit of energy savings;
Further purpose of the present invention is to this water heater provides one safety valve and screen pack integrated, simple installation, and good looking appearance, it is convenient, with low cost to clean, reliable operation, but the filtration safety valve of energy savings.
For achieving the above object, the invention provides a kind of electric thermostatic tubular water heater, this water heater comprises shell 1, is fixed in heater 2 and control circuit 3 in the shell, it is characterized in that:
Described heater 2 is linked to each other by a plurality of ultrathin hollow slab shape metal sink 21 stacks, be provided with the square waveform pipeline in each heat dump, pipeline in a plurality of heat dumps is linked to be a pipeline that communicates, the two ends of pipeline are entery and delivery port 211,212, be provided with a heater 22 between per two adjacent heat dumps, the two sides of heater is provided with metal electrode 23, and its edge is provided with the binding post 24 with used for electric power connection, is separated by insulating materials 25 between metal electrode and the heat dump.
Described control circuit comprises power circuit 31, temperature setting circuit 32, temperature sensing circuit 33, temperature indicator 34, window comparator 35, power adjusting circuit 36 and current sensitive switch 37; The said temperature initialization circuit links to each other with window comparator and temperature indicator respectively; Window comparator also links to each other with temperature sensing circuit and power adjusting circuit respectively; And the output of power adjusting circuit links to each other with the overheat protector device 8 of heater; The temperature sensor of current sensitive switch and temperature sensing circuit is contained on the water inlet tube of water heater respectively and outlet pipe temperature detection mouth place; Temperature indicator is connected in the output of temperature setting circuit by A/D converter 38, and above-mentioned each circuit all is connected with power circuit.
In heater inleting pipe 4, be equipped with and filter safety valve 5.
Pipeline in the described metal sink 21 is separated with housing by multi-disc reinforcement, heat absorbing sheet 215, and cross-section of pipeline can be square, circular or other shape.
Described heater 22 adopts the semiconductor heating board.
Described power circuit 31 can adopt voltage-stabilized power supply circuit.
Temperature setting circuit 32 comprises temperature setting button 321 and bleeder circuit 322, and wherein bleeder circuit adopts digital regulation resistance.
Described temperature sensing circuit 33 is made of temperature sensor 331 and temperature detection amplifier 332, can adopt thermocouple, thermistor or RTD equitemperature sensor and corresponding temperature detection amplifier.
Described window comparator 35 can adopt the voltage comparator IC chip, and its front end can add a differential amplifier circuit.
Described power adjusting circuit 36 adopts high pressure to isolate electronically controlled phase shifter.
Described current sensitive switch 37 can adopt tongue tube.
Temperature setting circuit, window comparator and mould/number conversion circuit and power adjusting circuit can adopt the single-chip microcomputer that contains above-mentioned several circuit, and this single-chip microcomputer has the fuzzy control function.
The valve body 51 of described filtration safety valve 5 is an open column shape body, its outer surface and endoporus are respectively equipped with external screw thread 511 and internal thread 512, its end end away from internal thread has an aperture 513, the eye bolt 54 that spool 52, spring 53 is housed in the valve body successively and is connected with internal thread 512, its other end is equipped with filter 55 and sealing ring 56.
Good effect of the present invention is:
One, owing to adopted current state-of-the-art exothermic material semiconductor heating sheet, and above-mentioned heating sheet is close between adjacent two heat dumps, thereby makes thermal conversion rate significantly improve.Because the pipeline in the metal sink is separated into the square waveform pipeline by the metal reinforced sheet, not only increased the endotherm area of water, and convection current is better.Increase the intensity of heat dump simultaneously, reduced the thickness of metal material, made thermal conversion rate higher, reached energy-conservation purpose.Because water is at short notice, through a plurality of heat dumps, absorbed a large amount of heats, water temperature is risen rapidly, reaching is thermal effect.So, and can use hot water continuously without preheating.Because of it does not need storage tank,, realized ultrathin type so volume is little.Simultaneously, during the heating of this heater, the flames of anger is not burnt, and does not have waste gas to discharge, and is pollution-free; Do not have mechanical oscillation, therefore noiseless is the environment-friendly type heater.This heater has adopted novel heating element heater, and its metal electrode does not contact with water in the square waveform tube type metal heat dump pipeline, by encapsulation process, keeps dry between adjacent two heat dumps, accomplishes that really water power isolates, and has avoided electric leakage, reaches safety standard.Therefore, be not subjected to the restriction of installation site, can be installed in from the nearest place of usefulness water out, thus can using water wisely.This heater die forming, technology is simple, exquisiteness is attractive in appearance, cost is low, practicality is high, can be mass-produced.
Two, the present invention can accurately control water temperature, and stable performance, not influenced by extraneous factor, can avoid when discharge or supply voltage are unstable unstable the and inconvenience that causes burn and scald and bring other to use of water temperature.Because the present invention regulates power automatically by the water temperature of setting, temperature is set and is settled at one go, has reduced loaded down with trivial details water temperature and has regulated program, not only easy to use but also energy savings.In addition, rigidly connect when logical at power supply, power adjusting circuit with the power of heater by low toward raising, reduced the excessive influence of dash current of heater to switch and other electrical equipment, also make heater performance more stable, the life-span is longer.
Three, the present invention links into an integrated entity safety valve and screen pack, not only have to filter and the safeguard protection dual-use function, and this incorporate structure can effectively reduce production costs, and the simplification mounting process can also energy savings.
The invention will be further described below in conjunction with accompanying drawing and a preferred embodiment.
Fig. 1 is an electric thermostatic tubular water heater schematic perspective view of the present invention.
Fig. 2 is a heater A-A cutaway view of the present invention.
Fig. 3 is a heater B-B sectional exploded view of the present invention.
Fig. 4 is a heater C-C sectional exploded view of the present invention.
Fig. 5 is a control circuit structured flowchart of the present invention.
Fig. 6 is a control circuit schematic diagram of the present invention.
Fig. 7 is a filtration safety valve parts view sub-anatomy of the present invention.
Consult Fig. 1, electric thermostatic tubular water heater of the present invention comprises shell 1, heater 2 and control circuit 3, and heater and control circuit are fixed in the shell.
Main points of the present invention are that above-mentioned heater 2 is by a plurality of ultrathin hollow slab shape metal sink 21 stacks continuous (as Fig. 1～4).This metal sink 21 is made of housing 213, square waveform pipeline 214 and reinforced sheet 215, its middle shell 213 is ultrathin hollow slab shape housings, be provided with square waveform pipeline 214 in it, this pipeline is separated with housing by multi-disc reinforcement, heat absorbing sheet 215, the cross section of pipeline can be square, circular or other shape, is square structure in this example.Pipeline in a plurality of heat dumps is linked to be a pipeline that communicates, and the two ends of pipeline are entery and delivery port 211,212.In the present embodiment, the heat dump that three structures that heat dump is made by aluminium alloy extrusions (being commonly called as harmonica-shaped tube) are identical is superimposed, and connects (see figure 1) by the screw 218 usefulness bolts of its edge.The mouth of pipe 216 and 217 of per two adjacent heat dumps socket-connects, and leakproof cushion rubber 6 (see figure 3)s are housed between two mouths of pipe.Another key character of this heater is provided with one at 21 adjacent of two heat dumps and is used for the heater 22 that heating liquid is used as shown in Figure 3, Figure 4, and this heater adopts the semiconductor heating board.The two sides of this semiconductor heating board respectively is provided with a metal electrode 23, and heat conductivility good insulation performance material 25 is equipped with on the two sides of metal electrode, and this insulating materials is silica gel sheet, mica sheet etc., also can use other insulating materials.Power supply terminal 24 is equipped with in the edge of metal electrode 23.Show as Fig. 1, be provided with the fixedly jump ring mouth 219 that fixing water pipe is used at the delivery port place of heater.
This heater in use, running water enters metal sink 21 from water inlet 211, the square waveform pipeline 214 through in the heat dump absorbs a large amount of heats, and water temperature is raise rapidly, and from delivery port 212 outflows, reaches the effect of instant heating.
Main points of the present invention are that also described control circuit 3 comprises power circuit 31, temperature setting circuit 32, temperature sensing circuit 33, temperature indicator 34, window comparator 35, power adjusting circuit 36, current sensitive switch 37 (see figure 5)s.As shown in Figure 6, described temperature setting circuit 32 comprises two temperature setting buttons 321 and bleeder circuit 322, and wherein two temperature setting buttons are contained on the water heater panel, and are connected with bleeder circuit by lead.Bleeder circuit adopts digital regulation resistance, and as the digital regulation resistance of X9511 series, it carries out dividing potential drop with sampling voltage, obtains required temperature voltage.The input of temperature setting circuit is connected with power circuit, and its output links to each other with window comparator 35 and temperature indicator 34.Described temperature sensing circuit 33 is made of temperature sensor 331 and temperature detection amplifier 332, and temperature sensor can adopt thermocouple, thermistor or RTD, adopts thermocouple in this example.It is contained in the outlet pipe temperature detection mouth place of liquid heating apparatus, and is connected in the temperature detection amplifier input terminal.Described temperature indicator 34 adopts LCD or charactron, and it is connected in the output of temperature setting circuit by A/D converter 38, and is fixed on the panel of liquid heating apparatus.A/D converter 38 can adopt general A/D converter.Described window comparator 35 can adopt voltage comparator IC chips such as LM393, as improving accuracy, can add a differential amplifier before window comparator.The input of this window comparator, output link to each other with temperature setting circuit, temperature sensing circuit and power adjusting circuit respectively.Described power adjusting circuit 36 adopts existing high pressure to isolate electronically controlled phase shifter.The output of power adjusting circuit links to each other with the overheat protector device 8 of heater.Current sensitive switch 37 is contained on the water inlet pipe mouth of liquid heating apparatus.
This control circuit is arranged on the wiring board 7, and wiring board then is fixed in a side in the shell.When water passes through the water inlet pipe of liquid heating apparatus, current sensitive switch closure, power circuit 31 is connected, temperature sensing circuit 33 detects temperature voltage, as exceed window comparator 35 window ranges, and when being lower than the temperature voltage of setting, 36 past rises of the power with heater of power adjusting circuit, in the window ranges of detected temperature voltage, just stop the power adjusting of heater at comparator.The window ranges that exceeds comparator as the detected temperature voltage of temperature sensing circuit, when being higher than design temperature voltage, power adjusting circuit then with the past downward modulation of the power of heater, in the window ranges of detected temperature voltage at comparator, just stops the power adjusting of heater.Circulation is regulated successively, stablizes set water temperature, reaches the purpose of constant temperature.
Main points more of the present invention are to be equipped with to filter safety valve 5 in heater inleting pipe 4.
As shown in Figure 7, the valve body 51 of this filtration safety valve is an open column shape body, and its outer surface and endoporus are respectively equipped with external screw thread 511 and internal thread 512, and external screw thread is used for being connected with water inlet tube of water heater, and internal thread then is used for being connected with eye bolt 54.Having a dozen away from an end end of internal thread on the valve body opens or closes and closes the aperture 513 that safety valve is used.The eye bolt 54 that spool 52, spring 53 is housed successively and is connected by perforate end to the other end in the valve body with internal thread 12, wherein spool 52 is a column, the one end has the less boss of a diameter, is used for socket spring 53, its other end by spring compression in described aperture 513 bottoms.Described eye bolt 54 1 ends are provided with places the groove that spring is used, and the other end has the osculum 541 that draining is used, and it is connected with internal thread 512 on the valve body inner bore.Be connected with a filter 55 by outer rim place, aperture 13 1 end end on the valve body, this filter can be that cylinder is netted or dull and stereotyped netted, is the cylinder gauze filter in this example.This end outer rim also is equipped with sealing ring 6, is used for 4 sealings with the heater inleting pipe.
Above-mentioned filtration safety valve is threadedly connected in the heater inleting pipe 4 by its external screw thread 511, and water inlet pipe is provided with pipe joint 41,42, and wherein pipe joint 41 is the heater inleting pipe, and pipe joint 42 is connected with the water inlet pipe of heater.
This filters safety valve operation principle as shown in Figure 7, when opening water valve, if water pressure in the setting range that filters safety valve, then water safety valve elimination impurity wherein after filtration enters water heater again, is discharged by heater heating back.When if water pressure exceeds the setting range that filters safety valve; the aperture 513 of water on valve body 51 washed spool 52 open, and 541 discharges of the osculum on eye bolt 54, and the pressure of water can reduce rapidly; reach effect of easing stress, thereby water heater is played a protective role.
Claims (10)
1, a kind of electric thermostatic tubular water heater comprises shell (1), is fixed in heater (2) and control circuit (3) in the shell, it is characterized in that:
Described heater (2) is linked to each other by a plurality of ultrathin hollow slab shape metal sinks (21) stack, be provided with the square waveform pipeline in each heat dump, pipeline in a plurality of heat dumps is linked to be a pipeline that communicates, the two ends of pipeline are entery and delivery port (211), (212), be provided with a heater (22) between per two adjacent heat dumps, the two sides of heater is provided with metal electrode (23), its edge is provided with the binding post (24) with used for electric power connection, is separated by insulating materials (25) between metal electrode and the heat dump.
Described control circuit comprises power circuit (31), temperature setting circuit (32), temperature sensing circuit (33), temperature indicator (34), window comparator (35), power adjusting circuit (36) and current sensitive switch (37); The said temperature initialization circuit links to each other with window comparator and temperature indicator respectively; Window comparator also links to each other with temperature sensing circuit and power adjusting circuit respectively; And the output of power adjusting circuit links to each other with the overheat protector device (8) of heater; The temperature sensor of current sensitive switch and temperature sensing circuit is contained on the water inlet tube of water heater respectively and outlet pipe temperature detection mouth place; Temperature indicator is connected in the output of temperature setting circuit by A/D converter (38), and above-mentioned each circuit all is connected with power circuit.
In heater inleting pipe (4), be equipped with and filter safety valve (5).
2, electric thermostatic tubular water heater according to claim 1 is characterized in that, the pipeline in the described metal sink (21) is separated with housing by multi-disc reinforcement, heat absorbing sheet 215, and cross-section of pipeline can be square, circular or other shape.
3, electric tubular liquid heater according to claim 1 is characterized in that, described heater (22) adopts the semiconductor heating board.
4, electric thermostatic tubular water heater according to claim 1 is characterized in that, described power circuit (31) can adopt voltage-stabilized power supply circuit.
5, electric thermostatic tubular water heater according to claim 1 is characterized in that, temperature setting circuit (32) comprises temperature setting button 321 and bleeder circuit 322, and wherein bleeder circuit adopts digital regulation resistance.
6, electric thermostatic tubular water heater according to claim 1, it is characterized in that, described temperature sensing circuit (33) is made of temperature sensor (331) and temperature detection amplifier (332), can adopt thermocouple, thermistor or RTD equitemperature sensor and corresponding temperature detection amplifier.
7, electric thermostatic tubular water heater according to claim 1 is characterized in that, described window comparator (35) can adopt the voltage comparator IC chip, and its front end can add a differential amplifier circuit.
8, electric thermostatic tubular water heater according to claim 1 is characterized in that, described power adjusting circuit (36) adopts high pressure to isolate electronically controlled phase shifter.
9, electric thermostatic tubular water heater according to claim 1 is characterized in that, described current sensitive switch (37) can adopt tongue tube.
10, the hot device of electric thermostatic tubular according to claim 1, it is characterized in that, the valve body (51) of described filtration safety valve (5) is an open column shape body, its outer surface and endoporus are respectively equipped with external screw thread (511) and internal thread (512), its end end away from internal thread has an aperture (513), the eye bolt (54) that spool (52), spring (53) is housed in the valve body successively and is connected with internal thread (512), its other end is equipped with filter (55) and sealing ring (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117254 CN1116559C (en) | 2000-07-17 | 2000-07-17 | Electric thermostatic tubular water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117254 CN1116559C (en) | 2000-07-17 | 2000-07-17 | Electric thermostatic tubular water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1280279A true CN1280279A (en) | 2001-01-17 |
| CN1116559C CN1116559C (en) | 2003-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00117254 Expired - Fee Related CN1116559C (en) | 2000-07-17 | 2000-07-17 | Electric thermostatic tubular water heater |
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| Country | Link |
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| CN (1) | CN1116559C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400900A (en) * | 2003-04-23 | 2004-10-27 | Jian Wen Zhang | Tubular liquid heater |
| WO2012159584A1 (en) * | 2011-05-25 | 2012-11-29 | Shanghai Kohler Electronics, Ltd. | Near instantaneous water heater for kitchen or bath products |
| WO2013010364A1 (en) * | 2011-07-19 | 2013-01-24 | Guo Shijun | Dry burning prevention electromagnetic water heater |
| CN103322691A (en) * | 2013-06-29 | 2013-09-25 | 张秀英 | Temperature-control flow-in-gap electric water heater |
| CN104570900A (en) * | 2015-01-26 | 2015-04-29 | 芜湖美的厨卫电器制造有限公司 | Voltage protection circuit for water heater and water heater |
| CN106419648A (en) * | 2016-10-19 | 2017-02-22 | 郏玉菊 | Domestic fruit and vegetable disinfection device |
-
2000
- 2000-07-17 CN CN 00117254 patent/CN1116559C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400900A (en) * | 2003-04-23 | 2004-10-27 | Jian Wen Zhang | Tubular liquid heater |
| GB2400900B (en) * | 2003-04-23 | 2005-06-29 | Jian Wen Zhang | Tubular liquid heater |
| WO2012159584A1 (en) * | 2011-05-25 | 2012-11-29 | Shanghai Kohler Electronics, Ltd. | Near instantaneous water heater for kitchen or bath products |
| WO2013010364A1 (en) * | 2011-07-19 | 2013-01-24 | Guo Shijun | Dry burning prevention electromagnetic water heater |
| CN103322691A (en) * | 2013-06-29 | 2013-09-25 | 张秀英 | Temperature-control flow-in-gap electric water heater |
| CN104570900A (en) * | 2015-01-26 | 2015-04-29 | 芜湖美的厨卫电器制造有限公司 | Voltage protection circuit for water heater and water heater |
| CN104570900B (en) * | 2015-01-26 | 2018-06-08 | 芜湖美的厨卫电器制造有限公司 | Water heater electric voltage protection circuit and water heater |
| CN106419648A (en) * | 2016-10-19 | 2017-02-22 | 郏玉菊 | Domestic fruit and vegetable disinfection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1116559C (en) | 2003-07-30 |
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Effective date of registration: 20041203 Address after: 518052 second incubator center, Nanshan District science and technology innovation service center, Shenzhen, Guangdong 1302, China Patentee after: Shenzhen Universal Technology Co., Ltd. Address before: 518053 Guangdong city of Shenzhen province Nanshan District Shahe overseas Chinese Town Road exchange Nga Court 3 building 202 room Patentee before: Zhang Jianwen |
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