CN101713682A - External sensing and measuring device for water level and water temperature of solar water heater - Google Patents
External sensing and measuring device for water level and water temperature of solar water heater Download PDFInfo
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- CN101713682A CN101713682A CN200910044752A CN200910044752A CN101713682A CN 101713682 A CN101713682 A CN 101713682A CN 200910044752 A CN200910044752 A CN 200910044752A CN 200910044752 A CN200910044752 A CN 200910044752A CN 101713682 A CN101713682 A CN 101713682A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention discloses an external sensing and measuring device for water level and water temperature of a solar water heater. A water pipe leads the water level in a water tank to the outside of the water tank; any side of the two ends of the water tank is provided with a water level measuring cylinder for accommodating a water level measurer; the lower end of the water level measuring cylinder is connected with water inlet and outlet pipes, while the upper end is higher than the water tank; a vent pipe is led out from a vent on one side of the water tank; a temperature sensor is inserted into the innermost layer of a water tank foaming layer to attach to a stainless steel inner steel plate of the water tank through a temperature measuring port; and terminals of water temperature and water level measuring elements and corresponding signal connecting wires access the controlling instrument for control and use. The defects that the sensor is easily failed, has short service life and the like because the traditional water level and water temperature sensing device is arranged in the water tank and the sensor works in high temperature and high humidity environment for a long time are overcome. The invention provides the water temperature and water level measuring device arranged outside the water tank of the solar water heater; the problem of scaling of a sensing probe used in the high temperature environment is solved; and the service life of the sensing and measuring probe is prolonged.
Description
Technical field
The present invention relates to a kind of external sensing and measuring device for water level and water temperature of solar water heater.
Background technology
The measurement mechanism of solar water-temperature water-level and instrument are the vitals that is related to the solar water heater fully automatic operation, by these parts, the consumer can clear clear understanding and is seen the water yield water temperature that solar water heater is indicated, and control and the utility appliance that is associated with it of commander are (as electrical heating, water pump, solenoid valve and heating tape etc.), to measure the sensing tool of most critical be exactly measuring sonde and wherein be used for water-temperature water-level.
The composition of probe is by thermistor and relevant electronic component and waterproof with use, and parts such as inductive material are formed, and put into solar water heater water tank inside and are used for the water temperature detection water level; Because the specific environment of solar water heater water tank inside; From normal water temperature when the coldest about 5 ℃, to 99 ℃ of the temperature that forms boiling water, the temperature difference is very big, and sensor is to work in hot and humid environment for a long time; Cause faulty sensor easily, serviceable life is short, so after sale service is too frequent, brings suitable inconvenience and trouble for producer and dealer and consumer.
Most important reason wherein;
1, the composition of sensor components and parts is except that electronic component, the also supporting material that is used for environmental sealing electric wire and electronic component that has used multiple different components; As stainless-steel tube/copper pipe, silica gel and plastics etc.; Because its expansion coefficient separately is different fully, make faulty sensor thereby under high low temperature telescopic action, be very easy to water inlet.
2, sensing probe reaches under high temperature action and easily forms incrustation scale, because sensing probe has certain light current to separate the electrode magneticaction, the mineral composition that is decomposed by hot water is very easy to be adsorbed onto on the metal position of sensor, and makes the measurement effect of sensor produce error or malfunctioning.
In sum, numerous domestic electronic instrument accessory producer has carried out the improvement of several different methods, is no lack of from material structure, waterproof, the high temperature resistant development and application that waits critical aspects.Its product is for high temperature resistant, waterproof, and durable problem all has no small progress; Such as silica gel water temperature sensing probe, the float-ball type sensing probe also has other style first-class etc. such as grape string data sensing probe or electronic component external sensing.But fundamentally can not solve the problem of aspects such as hot and humid and scaling, and the sensitivity of overall sensing probe and service time are not long.
Its reason is:
1: the silica gel sensing probe is owing to the problem that has solved waterproof and incrustation scale, but because the electric conductivity of silica gel than metal material difference, has certain shortcoming in sensitivity.
2: the probe cost of mechanical float-ball type compares higher, and installs also cumbersome.
3: the external method for sensing of grape string data or electronic component can not solve the problem that hot conditions light current is separated metal inductive means absorption incrustation scale under the electromagnetic action, because the sensing measurement probe must just can be had an effect under the condition of direct current energising, just produced light current and separated magnetic field and pop one's head in survey to use once energising, be similar to electrolysis electrode, because the solar water container water temperature is being higher than more than 70 ℃ for a long time, water is under high temperature action, compositions such as mineral salt wherein are decomposed, thereby sensing metal probe absorption with electrolysis the action of a magnetic field, just form crystalline material when being adsorbed onto certain quality, the sensitivity of probe will decrease even is ineffective.And in the middle of the high-temperature water tank internal hot-water, finish all for the surveying work of water level and water temperature of solar water heater.
Summary of the invention
Deficiency at above-mentioned similar technology exists the object of the present invention is to provide a kind of external sensing and measuring device for water level and water temperature of solar water heater.The water-level and water-temperature measurement mechanism is mounted in any end of both sides, solar water heater water tank outside like this, and the water-level and water-temperature measurement is to carry out work in different places respectively.
Technical scheme of the present invention is: water pipe is guided to the water tank outside with the water level in the water tank, and any side is provided for placing the water level measuring cylinder of fluviometer at the water tank two ends, and the lower end of water level measuring cylinder connects water inlet pipe and water outlet pipe, and the upper end of water level measuring cylinder is higher than water tank; Draw gas outlet from the side exhausr port of water tank; Steel plate place in the stainless steel of water tank is close in the innermost layer that temperature sensor is inserted into the water tank foaming layer by temperature-measuring port; The terminals of water temperature and level measuring element and corresponding signal connecting line insert in the indoor control instrument, are used for control and use.
Described gas outlet is connected with water level measuring cylinder, and the following position of the lower end of water level measuring cylinder and the Inlet and outlet water mouth of pipe is connected, and the coated outside heating tape of water level measuring cylinder is with to be used for winter protection and insulation.
Another embodiment, exhaust outlet down, described gas outlet and water level measuring cylinder are tied up side by side, the coated outside heating tape of water level measuring cylinder.So not only can play scavenging action, the while also can prevent freezing, is used for being incubated, and gas outlet is not connected with water level measuring cylinder here.
As preferred version: the junction of described water level measuring cylinder and water inlet pipe and water outlet pipe is provided with the filter screen that is used to filter.
The thermistor outer body sleeve of temperature sensor has stainless steel hollow tubular or copper pipe, line end is reserved from afterbody, and can make irregular flexibility from corresponding position as required, steel plate place in the stainless steel of water tank is close in the innermost layer that is inserted into the water tank foaming layer by temperature-measuring port when being convenient to install.
Described temperature-measuring port is arranged on the centre position of water tank both sides, is used for the measurement of water temperature.The water temperature of water tank upper is too high, and the water below the water tank is lower, measures the temperature of middle part water here, and is more moderate accurate.
Advantage of the present invention is:
1, the complete difference finished in water-heater water tank inside of in the past solar water heater water-temperature water-level sensing measuring method of contrast, sensing probe in the past are that water-temperature water-level concentrates on and puts into ladle body on the detector bar and measure being used for; And method of the present invention is that the water level in the solar water heater water tank is extended outside bucket by the road, measurement is to finish in the water level synchro measure tube outside bucket fully, and the sensing measurement of water level and water temperature is separately to place different positions and environmental work respectively.
2, the measurement of water level through pipeline extend to the bucket outside after, the water temperature that solar water heater water tank is inner and the externally measured tube of water tank is interior is different fully, the outer temperature of bucket is in air normal temperature, in the bucket then is the heated condition that constantly absorbs amount of solar heat at heat collectors for solar water heater, has assembled high heat in the heat-preserving container of water heater.Level sensor measuring method of the present invention is in the measurement tube of the outside of solar water heater heat-preserving container, and its maximum benefit is the serviceable life that can prolong the sensing measurement probe.Because the expansion coefficient of detecting head in normal temperature is low, sensing probe can not make metal tube and silica gel sealing location dislocation cracking make the electronic component water inlet malfunctioning because of excessively expanding with heat and contract with cold, and the life-span of its sensing probe can prolong more than 2-3 times relatively.
Incrusted problem when 3, having solved sensing probe and in hot environment, use, the formation of incrustation scale be water when the high temperature that is heated to more than 70 ℃, mineral compositions such as the calcium magnesium salts in the water decompose to be adsorbed or to precipitate in free state and form.And the easy incrusted problem of sensing probe be because sensing probe under direct current energising effect, detector bar has formed light current within the specific limits and has separated magnetic field, be similar to electrolysis electrode, the mineral free molecule that water is decomposed under high temperature action is very easy to be adsorbed on the electrode, just can form crystallization when the mineral matter that is adsorbed is too much.Sensing probe can reduce sensitivity because of the increase of crystallizable mineral absorption even be malfunctioning.Using this method sensing measurement is basically in normal temperature environment, and the mineral matter in the water can not be decomposed yet and adsorb.
4, be to utilize the present invention need only manufacture the pipe fitting sleeve pipe that a cover is used for extension and measurement, water temperature sensing probe and level sensor probe then are divided into two, its electronic component is not made too complicated improvement and mensuration, production cost is low, it is more convenient and practical that replacing is installed, and can be compatible with the control instrument that major part was installed in the past.Solved solar water heater because of the short too frequent after sale service that produces in serviceable life of instrument sensing probe.For producer and dealer have saved operating cost and after service cost.
Description of drawings
Fig. 1 is the structural representation of embodiments of the invention 1.
Embodiment
Now in conjunction with the accompanying drawings, technology contents of the present invention is described further.
Wherein: described water level measuring cylinder 3 is provided with the filter screen that is used to filter with the junction of water inlet pipe and water outlet pipe 4.
The thermistor outer body sleeve of temperature sensor 6 has stainless steel hollow tubular or copper pipe, line end is reserved from afterbody, and can make irregular flexibility from corresponding position as required, steel plate 9 places in the stainless steel of water tank 2 are close in the innermost layer that is inserted into the water tank foaming layer by temperature-measuring port 8 when being convenient to install.
Another embodiment, difference from Example 1 is: gas outlet 5 goes out mouth down, and described gas outlet 5 is tied up the coated outside heating tape 10 of water level measuring cylinder 3 side by side with water level measuring cylinder 3.So not only can play scavenging action, the while also can prevent freezing, is used for being incubated, and gas outlet 5 is not connected with water level measuring cylinder 3 here.
Be preferred embodiment of the present invention more than, but be not used in restriction the present invention.
Claims (6)
1. external sensing and measuring device for water level and water temperature of solar water heater, it is characterized in that: water pipe (1) is guided to water tank (2) outside with the water level in the water tank (2), any side is provided for placing the water level measuring cylinder (3) of fluviometer (7) at water tank (2) two ends, the lower end of water level measuring cylinder (3) connects water inlet pipe and water outlet pipe (4), and the upper end of water level measuring cylinder (3) is higher than water tank (2); Draw gas outlet (5) from the side exhausr port of water tank (3); The innermost layer that temperature sensor (6) is inserted into the water tank foaming layer by temperature-measuring port (8) is close in the stainless steel of water tank (2) steel plate (9) and is located; The terminals of fluviometer (7) and temperature sensor (6) and corresponding signal connecting line insert in the indoor control instrument, are used for control and use.
2. external sensing and measuring device for water level and water temperature of solar water heater according to claim 1, it is characterized in that: described gas outlet (5) is connected with water level measuring cylinder (3), the following position of the lower end of water level measuring cylinder (3) and water inlet pipe and water outlet pipe (4) is connected the coated outside heating tape (10) of water level measuring cylinder (3).
3. external sensing and measuring device for water level and water temperature of solar water heater according to claim 1, it is characterized in that: described gas outlet (5) goes out mouth down, described gas outlet (5) is tied up the coated outside heating tape (10) of water level measuring cylinder (3) side by side with water level measuring cylinder (3).
4. external sensing and measuring device for water level and water temperature of solar water heater according to claim 1 is characterized in that: described water level measuring cylinder (3) is provided with the filter screen that is used to filter with the junction of water inlet pipe and water outlet pipe (4).
5. external sensing and measuring device for water level and water temperature of solar water heater according to claim 1 is characterized in that: the thermistor outer body sleeve of described temperature sensor (6) has stainless steel hollow tubular or copper pipe.
6. external sensing and measuring device for water level and water temperature of solar water heater according to claim 1 is characterized in that: described temperature-measuring port (8) is arranged on the centre position of water tank (2) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044752A CN101713682A (en) | 2009-11-10 | 2009-11-10 | External sensing and measuring device for water level and water temperature of solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044752A CN101713682A (en) | 2009-11-10 | 2009-11-10 | External sensing and measuring device for water level and water temperature of solar water heater |
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| Publication Number | Publication Date |
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| CN101713682A true CN101713682A (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910044752A Pending CN101713682A (en) | 2009-11-10 | 2009-11-10 | External sensing and measuring device for water level and water temperature of solar water heater |
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| CN (1) | CN101713682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792425A (en) * | 2015-04-03 | 2015-07-22 | 周佩龙 | Thermometer of cooling tower |
| CN105020913A (en) * | 2014-04-25 | 2015-11-04 | 上海犀科环境科技有限公司 | Heat countercurrent prevention solar circulating pump station |
-
2009
- 2009-11-10 CN CN200910044752A patent/CN101713682A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020913A (en) * | 2014-04-25 | 2015-11-04 | 上海犀科环境科技有限公司 | Heat countercurrent prevention solar circulating pump station |
| CN105020913B (en) * | 2014-04-25 | 2019-06-18 | 上海犀科环境科技有限公司 | Solar heat protection adverse current solar energy water circulating pump station |
| CN104792425A (en) * | 2015-04-03 | 2015-07-22 | 周佩龙 | Thermometer of cooling tower |
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Open date: 20100526 |