CN203586385U - Water return device used for gravity water supply of solar concentrated hot water system - Google Patents
Water return device used for gravity water supply of solar concentrated hot water system Download PDFInfo
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- CN203586385U CN203586385U CN201320735781.XU CN201320735781U CN203586385U CN 203586385 U CN203586385 U CN 203586385U CN 201320735781 U CN201320735781 U CN 201320735781U CN 203586385 U CN203586385 U CN 203586385U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 230000005484 gravity Effects 0.000 title claims abstract description 17
- 238000009408 flooring Methods 0.000 claims description 28
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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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 utility model discloses a water return device used for gravity water supply of a solar concentrated hot water system. The water return device used for gravity water supply of the solar concentrated hot water system comprises a floor hot water storage tank, a hot water consuming site, a hot water supply pipe, a water return pipe, a water return circulating pump, a one-way valve, a temperature sensor and the like, wherein the floor hot water storage tank and hot water consuming site are connected to form a loop through the hot water supply pipe and the water return pipe, the one-way valve and the water return circulating pump are arranged in the same direction and in parallel and are arranged on a floor water supply pipeline close to an outlet of the water tank, the temperature is arranged in a pipeline at the tail end of the water consuming site, and a temperature controller or system centralized control component controls the water return circulating pump to be started and stopped according to water temperature signals measured by the temperature sensor, and maintains the water temperature of the water consuming site. Compared with various existing technical schemes, the water return device used for gravity water supply of the solar concentrated hot water system has the advantages of not affecting flowing loss and water supply amount of a water supply main pipeline, not generating air blockage before pumping, not affecting water supply in the process of water return, and bringing convenience to centralized maintenance and management of equipment and the like. The water return device is suitable for the solar concentrated hot water system in the project scale and a united heat supply system of solar energy and a heat pump or electrical heating or other auxiliary heat sources.
Description
Technical field
the utility model relates to a kind of project scale solar energy utilization technique field, and a kind of hot water water pipe network water recovery apparatus for adopting the flooring hot water storage tank of gravity water supply scheme to provide is provided.
Background technology
along with the day by day minimizing of traditional fossil energies such as oil, coal, natural gas, and use the increasingly severe environmental problem that these fossil energies bring, develop all kinds of clean energy resourcies and renewable energy utilization technology has been subject to increasing attention.Wherein, use the solar energy heat collector of scale on building, for building centralizedly supply domestic hot-water is a kind of effectively renewable energy utilization means, and have good environmental-protecting performance, therefore, its development and application is very fast in recent years.Owing to being limited by climatic factor, solar energy can not be supplied with continually and steadily, therefore in solar energy central hot water supply system, is often provided with the auxiliary heat production devices such as air source heat pump or electric heater, thereby forms solar energy heat pump system or electric assisted solar system.The hot water storage tank of solar energy central hot water supply system is generally placed on building flooring, relies on gravity hot water to be delivered to the hot water water site being positioned at below flooring.Using the water spot less time period of water consumption, hot water in water site can be lowered the temperature because of heat radiation, therefore need continuously or off and on the water circulation of lowering the temperature because of heat radiation in pipe network to be returned to flooring water tank, guarantee that user is not less than a certain numerical value all the time by the water temperature at water spot place, therefore a return circulating pump need to be set in pipe network.For saving the power consumption of return circulating pump, solar energy central hot water system generally adopts the intermittently mode of backwater of temperature control, a temperature sensor is set in the pipeline of water pipe network end, when sensor detects local water temperature lower than a certain numerical value (as 33 ℃), by temperature controller or system centralized Control parts, send instruction, open return circulating pump, hot water in water tank is pumped into pipe network, the water of lowering the temperature because of heat radiation in pipe network is pushed up back to flooring water tank, until the water temperature that sensor detects is elevated to a certain numerical value (as 45 ℃); Some system is further to save circulating pump power consumption, by the setting of control assembly, can stop backwater circulation function in the time period of basic unmanned water; Certainly, the return water system of simplification also can only carry out timing cycle.
hot water storage tank is placed in the solar energy central hot water supply system of the employing gravity water supply of flooring, and the setting of conventional water recovery apparatus roughly has several schemes shown in Fig. 1～Fig. 5.It is the most simply the scheme shown in Fig. 1, return pipe and water recovery apparatus are not set, only will between flooring hot water storage tank 1 and hot water water site 3, with hot water feeding pipe 2, be connected, during user's water, need first the cold water in pipeline to be emitted and could be obtained hot water, have the problem that affects comfort and waste water.Shown in Fig. 2 is a kind of conventional backwater scheme, for the convenience of equipment maintenance and management and control and power-supply wiring, return circulating pump 6 is installed on flooring return pipe 4, in this scheme, the working method of circulating pump is water suction, do not meet the working method of centrifugal pump " setting-out ", in actual use, in pump preceding pipeline, be easy to build-up of air, cause backwater not smooth.The not smooth problem of backwater occurring for solving the scheme shown in Fig. 2, scheme shown in Fig. 3 (also can before pump) after return circulating pump 6 is provided with a check valve 7, attempt during termination of pumping, the water in return riser and pump to be maintained, so that can normal backwater during next turn on pump; But in actual use,, because the sealability of check valve 7 is limited, the water-column maintaining for a long time in return pipe 4 by check valve 7 is difficult to good realization.The most effective solution as shown in Figure 4, return circulating pump 6 is installed on to the minimum point place of hot water water site 3 end water supply networks, but there is the difficulty of certain enforcement aspect in this scheme in actual use, mainly often because the reasons such as building structure are difficult to find suitable return circulating pump 6 installation sites and space on hot water feeding pipe road 2 end pipelines, return circulating pump 6 is arranged on the position away from flooring device cluster in addition, having larger maintenance and management difficulty, is secondly to control and power line difficult wiring away from the return circulating pump 6 of flooring device cluster.For solving the problems such as equipment installation, management, wiring, the backwater of such scheme be not smooth, scheme shown in Fig. 5 is installed on return circulating pump 6 on flooring hot water feeding pipe road 2, although this has solved the problems such as backwater reliability, equipment installation and maintenance, wiring, but all water supply all needs the return circulating pump 6 of flowing through, the flow resistance that when return circulating pump 6 is not worked, pump itself causes is larger, cause reducing by the discharge of water spot, affect comfort.
Utility model content
the utility model object is: a kind of water recovery apparatus for solar energy central hot water system gravity water supply is provided, can overcomes the shortcoming such as of the prior artly waste water, current are smooth, discharge is little, affect comfort, pump consumption is large.
the technical solution of the utility model is:
for a water recovery apparatus for solar energy central hot water system gravity water supply, comprise the hot water feeding pipe road, return pipe, the return circulating pump that flooring hot water storage tank and hot water water site are connected into loop; On nearly flooring hot water storage tank's vibration means for main pipe for supplying water road, be arranged in parallel check valve and return circulating pump, flowing to of described check valve and described return circulating pump is identical.
preferably, described check valve is arranged on the nearly flooring hot water storage tank place in the vibration means for main pipe for supplying water road in flooring, and described return circulating pump is arranged on the branch road in parallel with check valve.
preferably, in described hot water water site end is the pipeline of described return pipe front end, be provided with temperature sensor, described temperature sensor is connected with the temperature controller of controlling return circulating pump start and stop.
preferably, described temperature sensor is installed in the return pipe of flooring part.
preferably, described return circulating pump is connected with the timer of controlling its start-stop time.
the utility model compared with prior art has following advantage:
one, during system normal water supply, the circulating pump on check valve and bye-pass that hot water is flowed through on vibration means for main pipe for supplying water road is simultaneously delivered to water spot, and the flow area of water channel is larger, and resistance of ducting loss is little, more easily guarantees to guarantee water comfortableness by larger output.
two, during backwater circulation pump work, the check valve on vibration means for main pipe for supplying water road is closed under the effect of water pump inlet outlet pressure differential, and the whole discharge capacities of water pump are all sent into pipe network, and the water in can Rapid replacement pipe network also improves the water temperature with water spot, guarantees that user has hot water to use at any time; During backwater circulation pump work, if there is user's water, although the closed check valve on vibration means for main pipe for supplying water road now, the lift producing due to water pump generally exceedes the pressure that gravity water supply produces, so do not affect the discharge at user place.
three, return circulating pump is " setting-out " working method, than " drawing water " working method, can not produce the stifled problem of brought gas of finding time before pump, can guarantee reliable backwater.
four, return circulating pump is placed in flooring, is installed together with other equipment, is convenient to the maintenance and management of equipment.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 ~ Fig. 5 is the schematic diagram of prior art;
fig. 6 is the schematic diagram of the utility model embodiment 1.
wherein: 1. flooring hot water storage tank, 2. hot water feeding pipe road, 3. hot water water site, 4. return pipe, 5. temperature sensor, 6. return circulating pump, 7. check valve.
The specific embodiment
embodiment 1:
as described in Figure 6, flooring hot water storage tank 1 is linked to be water supply network loop with hot water water site 3 by hot water feeding pipe road 2 and return pipe 4, on the flooring hot water feeding pipe road 2 that closes on flooring hot water storage tank 1, check valve 7 is set, on hot water feeding pipe road 2, be provided with a branch road, branch road is in parallel with check valve 7, return circulating pump 6 is set on branch road, and the check valve 7 on described vibration means for main pipe for supplying water road flows to identical with the return circulating pump 6 on described branch road.At the end of described hot water water site 3, i.e. set temperature sensor 5 in the pipeline of described return pipe 4 front ends, temperature sensor 5 is connected with temperature controller or the system centralized Control parts (not shown) of controlling described return circulating pump 6 start and stop.In whole solar energy central hot water system, configure the assisted heating devices such as heat pump, electric heater, combustion heater.
the method of work of the present embodiment is: when temperature sensor 5 detects local water temperature lower than a certain numerical value (as 33 ℃), by coupled temperature controller or system centralized Control parts, send instruction, open return circulating pump 6, hot water in flooring hot water storage tank 1 is pumped to hot water water site 3, substitute the water of wherein lowering the temperature because of heat radiation, until the local water temperature that described temperature sensor 5 detects is elevated to a certain numerical value (as 45 ℃), close return circulating pump 6.During system normal water supply, hot water is mainly by described hot water feeding pipe road 2, and the described check valve 7 of flowing through, relies on gravity supplying hot water water site 3, and the return circulating pump 6 of a small amount of flow of hot water on described branch road delivered to water spot 3 for hot water; When return circulating pump 6 is worked, check valve 7 on hot water feeding pipe road 2 is closed under the inlet outlet pressure differential effect of water pump 6, the circulating backwater that circulating pump 6 produces all enters hot water water site 3, thereby the water at 3 places, Rapid replacement hot water water site improves the water temperature at 3 places, hot water water site.
embodiment 2:
the present embodiment is compared with embodiment 1, and temperature sensor 5 is installed in return pipe 4 more than flooring, to reduce field wiring, facilitates the maintenance and management of equipment.
embodiment 3:
the present embodiment is compared with embodiment 1, save temperature controller and temperature sensor 5, return circulating pump 6 is connected with the timer of controlling its start-stop time, by corresponding setting, in time period of basic unmanned water (as the morning of residential building, concentrate the non-open hour in bathroom etc.), stop backwater circulation function, to save circulating pump power consumption.It is that return circulating pump 6 is worked according to the mode of timing backwater circulation that the one of the present embodiment is simplified method of work.
above by reference to the accompanying drawings the preferred specific embodiment of described the utility model only for embodiment of the present utility model is described; rather than as the restriction to aforementioned utility model object and appended claims content and scope; every foundation technical spirit of the present utility model, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs to the utility model technology and rights protection category.
Claims (5)
1. the water recovery apparatus for solar energy central hot water system gravity water supply, comprise the hot water feeding pipe road, return pipe, the return circulating pump that flooring hot water storage tank and hot water water site are connected into loop, it is characterized in that: on nearly flooring hot water storage tank's vibration means for main pipe for supplying water road, be arranged in parallel check valve and return circulating pump, flowing to of described check valve and described return circulating pump is identical.
2. the water recovery apparatus of solar energy central hot water system gravity water supply according to claim 1, it is characterized in that: described check valve is arranged on the nearly flooring hot water storage tank place in the vibration means for main pipe for supplying water road in flooring, and described return circulating pump is arranged on the branch road in parallel with check valve.
3. the water recovery apparatus of solar energy central hot water system gravity water supply according to claim 1, it is characterized in that: in described hot water water site end is the pipeline of described return pipe front end, be provided with temperature sensor, described temperature sensor is connected with the temperature controller of controlling return circulating pump start and stop.
4. the water recovery apparatus of solar energy central hot water system gravity water supply according to claim 3, is characterized in that: described temperature sensor is installed in the return pipe of flooring part.
5. the water recovery apparatus of solar energy central hot water system gravity water supply according to claim 1, is characterized in that: described return circulating pump is connected with the timer of controlling its start-stop time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735781.XU CN203586385U (en) | 2013-11-19 | 2013-11-19 | Water return device used for gravity water supply of solar concentrated hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320735781.XU CN203586385U (en) | 2013-11-19 | 2013-11-19 | Water return device used for gravity water supply of solar concentrated hot water system |
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| Publication Number | Publication Date |
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| CN203586385U true CN203586385U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320735781.XU Expired - Fee Related CN203586385U (en) | 2013-11-19 | 2013-11-19 | Water return device used for gravity water supply of solar concentrated hot water system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567040A (en) * | 2019-09-24 | 2019-12-13 | 江苏帅因特光电科技开发有限公司 | Intelligent hot water outlet device for centralized water supply and control method thereof |
| CN113944952A (en) * | 2020-07-17 | 2022-01-18 | 合肥暖流信息科技有限公司 | Home user water supply anti-theft monitoring system and detection method |
| CN116989378A (en) * | 2023-08-01 | 2023-11-03 | 厦门金名节能科技有限公司 | A centralized hot water intelligent return system and its control method |
-
2013
- 2013-11-19 CN CN201320735781.XU patent/CN203586385U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567040A (en) * | 2019-09-24 | 2019-12-13 | 江苏帅因特光电科技开发有限公司 | Intelligent hot water outlet device for centralized water supply and control method thereof |
| CN110567040B (en) * | 2019-09-24 | 2021-06-25 | 江苏帅因特光电科技开发有限公司 | Intelligent hot water outlet device for centralized water supply and control method thereof |
| CN113944952A (en) * | 2020-07-17 | 2022-01-18 | 合肥暖流信息科技有限公司 | Home user water supply anti-theft monitoring system and detection method |
| CN116989378A (en) * | 2023-08-01 | 2023-11-03 | 厦门金名节能科技有限公司 | A centralized hot water intelligent return system and its control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |