CN101294726A - Heat preserving device of thermal water supply pipe - Google Patents
Heat preserving device of thermal water supply pipe Download PDFInfo
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- CN101294726A CN101294726A CNA2007100401882A CN200710040188A CN101294726A CN 101294726 A CN101294726 A CN 101294726A CN A2007100401882 A CNA2007100401882 A CN A2007100401882A CN 200710040188 A CN200710040188 A CN 200710040188A CN 101294726 A CN101294726 A CN 101294726A
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- pipe
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Abstract
The invention discloses an attemperator for a hot water supply line, which is composed of a water circulation loop composed of internal and external sleeves, a positive displacement pump, an electric heater, a temperature sensor, a controller, etc. The attemperator is applied to various water supply lines of hot water supply systems. The negative effect of cooled line water caused by the time interval of using the hot water supply system can be avoided, thus being conducive to saving water source and energy source.
Description
Affiliated technical field
The present invention relates to a kind of hot water feeding pipe road attemperator, a kind of hot water feeding pipe road attemperator of forming by water-flow circuit, water pump and electric heater.
Background technology
Hot supply equipment is one of basic facilities of the modern life; because a variety of causes hot-water heating system is (as gas heater; solar water heater; hot-water boiler etc.) with use intake (as the washroom; between bathroom etc.) between usually have certain distance; between this segment distance, adopt water supply line to connect; because the residing environment temperature of pipeline is relatively low; under heat transfer effect; the hot water temperature descends with water blanking time gradually in the pipeline; when water temperature drops to certain numerical value and enables hot water once more; people usually can drain the water at low temperature in the pipeline; be put into the suitable back of hot water temperature uses always; this uses to hot water and makes troubles, and has caused the waste of the water resource and the energy etc. simultaneously to a certain extent.
In order to reduce the negative effect that the heat radiation of delivery pipeline causes, people have taked multiple measure, as adopt the pipeline material of low thermal conductivity, water supply line wrapped up etc., similar approach can reduce the heat transmission of hot water supplying pipe road and environment effectively, the occasion low at the pipeline thermal water flow velocity and short time interval uses, this class heat preserving method generally can meet the demands.But, the pipeline water temperature reduction that long period is caused at interval tends to exceed instructions for use, especially in some are had relatively high expectations to water temperature or extra long distance supplies water occasion, people also cooperate the water temperature that adopts circulating hot water water supply pipe net system (as accompanying drawing 2) to keep water supply line, comprising water pipeline 7, water return pipeline 16, water circulating pump 17 etc., the water at low temperature that temperature is descended is drawn back by water pump and is reheated.Because the recirculation water water temperature is different from water heater water inlet (cold water) temperature, heating causes the unusual fluctuations of pipeline water temperature easily once more.Therefore, often need to be equipped with thermometric and the control device that dynamic property is had relatively high expectations when adopting this class circulation heat-insulation system, perhaps be equipped with the hot water tank of larger capacity: in addition, similar pipe network system need be laid return (as return among Fig. 2 16), makes hot water system design and installation more complicated.Therefore, existing most of (especially small-sized, domestic gas, solar energy etc.) hot water system is the circulating attemperator of pipe laying not, and people still adopt and above-mentionedly manually the method for pipeline cold water emptying used hot water supply installation.
Summary of the invention
The invention provides a kind of heat preserving device of thermal water supply pipe.This device is made up of volumetric water pump, internal and external casing formula water circulation pipe, electric heater and controller etc.Device provided by the invention is applicable to the insulation of all kinds of hot water system water supply lines.
The closed circuit structure of hot water feeding pipe provided by the invention road attemperator is: penetrate the less plastics of internal diameter (as PA tube etc.) tubule in general hot water supplying pipe road, under the effect of volumetric water pump (as plunger displacement pump, gear pump etc.), form water-flow circuit by path inside and outside the plastic straw, in water-flow circuit, be installed with electric heater unit, by to the temperature detection feedback regulation pump capacity of recirculation water and the power of electric calorifie installation, thereby make inside, hot water supplying pipe road reach metastable temperature range.
Heat preserving device of thermal water supply pipe provided by the invention has following characteristics:
1, circulation line is located at water supply line inside, has avoided laying independently return, makes space availability ratio higher, and design and construction are than being easier to;
2, circulation power adopts volumetric water pump, has the flow adjustment range of broad.The startup stage of the very low hot water system of water temperature, adopt higher circular flow, make that water temperature reaches control range fast in the pipe; Use the gap at hot water,, adopt the lower circular flow just can holding temperature, be convenient to cut down the consumption of energy to greatest extent and noise because that water supply line water temperature inside under the heat-barrier coating effect changes is very slow.
3, electric heater unit is adopted in insulation.Though the electric energy calorific value is low with respect to the equivalent price comparison of other energy such as combustion gas,, electric heater efficient height, overall power little (electric heater unit only is used for the compensation of heat dissipation of pipeline), power adjusting is easy, and adjustable range is bigger.Therefore, adopt the electrothermal pipe insulation to have comprehensive advantage.
Description of drawings
Fig. 1 is a heat preserving device of thermal water supply pipe structure principle chart of the present invention
Fig. 2 is known hot water supplying pipe road circulation heat preservation principle figure
Fig. 3 is an application example of the present invention
Among the figure:
Water heater, 2, water heater cold water water inlet, 3. the water heater hot-water delivery port,
The heat preserving device of thermal water supply pipe main body, 5. the recirculated water inner sleeve, 6. pipe insulation device water inlet,
The hot water supplying pipe road, 8. hot water use terminal device, 9. the insulation electric heater,
10, positive displacement pump delivery port, 11. volumetric water pumps, 12. volumetric water pump drive train,
13. volumetric water pump water inlet (pipe), 14. controllers, 15. temperature transducers,
16. reflux line, 17. centrifugal water pumps, 18. check valves
The specific embodiment
Hot water feeding pipe provided by the invention road attemperator structure and operation principle mainly contain volumetric water pump 11, water pump drive train 12, electric heater 9, temperature transducer 15, controller 14 and the parts such as recirculated water inner sleeve 5 that are installed in the hot water supplying pipe road are formed as shown in Figure 1.
Wherein: positive displacement pump 11 can adopt various forms such as plunger displacement pump, gear pump, drive train 12 is made up of motor and reducing gear, correlation technique all is a mature technology, and its principle can be consulted technology books such as " " hydraulic drive design manual " Shanghai science tech publishing house of Ministry of Coal Industry in April, 1981 versions "; Electric heater 9 causes the duct type structure that heater element (resistance wire, far-infrared heating element) etc. is formed by electricity, and the tube wall by high-termal conductivity carries out heat exchange, thereby realizes the heating of convection current heater via pipeline water.Similar electric heater unit is the mature technology that generally uses, and specifically can consult technology books such as " " eelctrical engineering handbook " Shanghai science tech publishing house in April, 1978 versions ".Temperature transducer 15 can adopt temperature elements such as thermal resistance (or thermistor, temperature integrated circuit).Controller 14 can adopt digital temperature adjuster and drive circuit composition (can be combined by master meter, but expense to be higher; Also can adopt compositions such as embedded system or single-chip microcomputer).Inner sleeve 5 adopts plastics (as polypropylene PP) tubing, and internal diameter is generally thinner, can require to take into account stimulating the menstrual flow and the traffic requirement that does not influence water supply line of pipe bending place according to parameters selections such as water supply line internal diameters.
During work, the circulating reflux coolant-temperature gage that controller 14 records by temperature transducer 15 forms the driving signal through computing (relatively waiting with setting value), controls the rotating speed of motor in the water pump drive train 12 and the heating power of electric heater 9 respectively; Motor drives volumetric water pump 11 work by deceleration device.During volumetric water pump 11 operations, water from water inlet 6 suction water supply lines, and it is pumped from pump outlet 10, the water that pumps follows ring inner sleeve 5 and delivers to hot water use terminal device 8 position (see figure 3)s always after pipeline is flowed through electric heater 9 heating, flow out to hot water feeding pipe road 7 through interior pipe outlet again and return.In flow process, water temperature is higher than outside the pipe in interior pipe 5 pipes, carries out the portion of hot exchange by tube wall and can make pipe temperature even relatively.When controller 14 was experienced the pipeline water temperature and reached setting range by temperature transducer 15, control water pump 11 and electric heater 9 were operated in the low running status of dynamic equilibrium, with the water temperature of maintaining heat water supply line, thereby reached the requirement of hot water supplying pipe road insulation.
Claims (3)
1, a kind of heat preserving device of thermal water supply pipe, comprising water pump, hot water supplying pipe road, water-flow circuit, temperature transducer, controller etc. is characterized in that: circulation line adopts internal and external casing formula structure, promptly penetrates the thinner water-flow circuit pipeline of diameter in hot water supplying pipe inside.
2, as claim 1 described a kind of heat preserving device of thermal water supply pipe, it is characterized in that: being used for the water pump that pipe insulation circulates is positive displacement pump, and flow is directly proportional with the drive motors rotating speed.
3, as claim 1 described a kind of heat preserving device of thermal water supply pipe, it is characterized in that: the heater that is used for pipe insulation is an electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100401882A CN101294726A (en) | 2007-04-28 | 2007-04-28 | Heat preserving device of thermal water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100401882A CN101294726A (en) | 2007-04-28 | 2007-04-28 | Heat preserving device of thermal water supply pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101294726A true CN101294726A (en) | 2008-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100401882A Pending CN101294726A (en) | 2007-04-28 | 2007-04-28 | Heat preserving device of thermal water supply pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101294726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361809A (en) * | 2018-03-31 | 2018-08-03 | 柳州市展虹科技有限公司 | A kind of small-sized household pipe network hot water regulating device |
-
2007
- 2007-04-28 CN CNA2007100401882A patent/CN101294726A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361809A (en) * | 2018-03-31 | 2018-08-03 | 柳州市展虹科技有限公司 | A kind of small-sized household pipe network hot water regulating device |
| CN108361809B (en) * | 2018-03-31 | 2024-02-06 | 广西科技大学 | Small-size domestic pipe network hot water adjusting device |
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Open date: 20081029 |