CN108951357A - A kind of road surface heating and cooling device based on gravity assisted heat pipe principle - Google Patents
A kind of road surface heating and cooling device based on gravity assisted heat pipe principle Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 230000005484 gravity Effects 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 210000004262 dental pulp cavity Anatomy 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 3
- 239000008236 heating water Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 6
- 239000010426 asphalt Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010840 domestic wastewater Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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Abstract
Description
技术领域technical field
本发明属于路面温控装置领域，具体涉及一种基于重力热管原理的路面升降温装置。The invention belongs to the field of road surface temperature control devices, in particular to a road surface temperature raising and lowering device based on the principle of gravity heat pipes.
背景技术Background technique
夏季时，在太阳光的照射下，路面温度大幅上升，通常能达到60～70℃，较高的路面温度不仅导致路面病害的产生，而且加速城市的热岛效应，严重影响居民的日常生活；冬季时，尤其是北方地区，由于冰雪气候周期长、气温低，导致路面出现大量结冰、积雪等现象，严重影响车辆出行安全。传统的路面控温方法较多，如铺设热反射涂层、洒水、设置隔热层、埋设电热丝等，但大多数只能实现单一的升温或降温功能，造成资源的浪费。In summer, under the irradiation of sunlight, the temperature of the road surface rises sharply, usually reaching 60-70°C. The higher temperature of the road surface not only leads to the occurrence of road surface diseases, but also accelerates the urban heat island effect, which seriously affects the daily life of residents; During this period, especially in the northern region, due to the long ice and snow climate cycle and low temperature, there will be a lot of ice and snow on the road surface, which will seriously affect the safety of vehicles. There are many traditional road surface temperature control methods, such as laying heat-reflective coatings, spraying water, setting up heat insulation layers, and laying heating wires, etc., but most of them can only achieve a single heating or cooling function, resulting in a waste of resources.
热管是一种两相闭式热虹吸管，又称重力热管。将热管抽成负压后充溢适量的工作液体(工质)，管的一端为蒸发段(吸热段)，一端为冷凝段(放热段)，根据需要在两段中间布置绝热段。当热管的蒸发段受热时，热管内的工质因吸收热量而蒸发，蒸汽流向冷凝段，与相对温度较低的冷凝段管壁接触后放出汽化潜热冷凝成液体，随后工质在重力作用下沿管壁流回蒸发段再蒸发，如此循环将蒸发段的热量源源不断地传到冷凝段。Heat pipe is a two-phase closed thermosiphon, also known as gravity heat pipe. The heat pipe is pumped into a negative pressure and filled with an appropriate amount of working liquid (working fluid). One end of the tube is an evaporation section (endothermic section), and the other end is a condensation section (heat release section). An insulating section is arranged between the two sections as required. When the evaporation section of the heat pipe is heated, the working fluid in the heat pipe evaporates due to heat absorption, and the steam flows to the condensation section, and after contacting the wall of the condensation section with a relatively low temperature, it releases the latent heat of vaporization and condenses into a liquid, and then the working fluid condenses under the action of gravity It flows back to the evaporating section along the tube wall and evaporates again. This cycle transfers the heat from the evaporating section to the condensing section continuously.
重力热管因具有传热性能优良、工作状态稳定、价格低廉等优点得到了广泛的研究和应用。中国专利CN201843036U所公开“一种路基热棒”专利(申请号：201020612891.3)，将热管设计成“L”型，埋置在沥青路面内部，实现对沥青路面的降温；中国专利CN105603851A所公开的“一种沥青路面降温装置”专利(申请号：201510635485.6)，将热管设计成“L”型的双层结构，提高热棒对沥青路面的降温效率。但上述专利的不足之处在于：第一，由于热管外形为圆形，埋置在路面内部，在车辆荷载长时间的作用下，易出现偏移，甚至对路面产生损坏；第二，由于热管为“L”型结构，增大管内工质运行阻力，降低其传热效率；第三，仅单一地实现路面降温，造成资源浪费。因此需要设计出一种能根据实际的路面温度自动进行调控的路面升降温装置。Gravity heat pipes have been widely researched and applied due to their excellent heat transfer performance, stable working condition, and low price. Chinese patent CN201843036U discloses a patent for "a roadbed hot rod" (application number: 201020612891.3), which designs the heat pipe into an "L" shape and embeds it inside the asphalt pavement to cool the asphalt pavement; An asphalt pavement cooling device" patent (application number: 201510635485.6), the heat pipe is designed as an "L"-shaped double-layer structure to improve the cooling efficiency of the heat rod on the asphalt pavement. However, the disadvantages of the above-mentioned patents are as follows: first, because the heat pipe is circular in shape and embedded inside the road surface, it is easy to shift and even damage the road surface under the action of the vehicle load for a long time; second, because the heat pipe It is an "L"-shaped structure, which increases the running resistance of the working fluid in the tube and reduces its heat transfer efficiency; third, it only realizes cooling of the road surface, resulting in waste of resources. Therefore need to design a kind of road surface heating and cooling device that can automatically regulate according to actual road surface temperature.
发明内容Contents of the invention
为解决上述问题，本发明提供了一种基于重力热管原理的路面升降温装置，该装置设计合理、结构简单，能根据路面实际温度自动进行调控，实现夏季降温、冬季升温的功能。In order to solve the above problems, the present invention provides a road temperature raising and lowering device based on the principle of gravity heat pipe. The device has a reasonable design and a simple structure, and can automatically adjust and control according to the actual temperature of the road surface to realize the functions of cooling in summer and heating in winter.
为达到上述目的，本发明采用的技术方案是：一种基于重力热管原理的路面升降温装置，包括管道、温度传感器、水箱以及控制单元，其中，管道设置有第一工作段和第二工作段，第一工作段设置在路面内，第一工作段的外侧设置有用于监测路面温度的温度传感器；第二工作段设置在水箱中，水箱上设置有循环水的进水口和出水口，水箱中设置温度传感器，两个温度传感器与控制单元连接；管道内部为负压，沿管道的内壁轴向设置有吸液芯；吸液芯中充有工质；路面铺设有若干根管道。In order to achieve the above object, the technical solution adopted by the present invention is: a road surface heating and cooling device based on the principle of gravity heat pipe, including a pipeline, a temperature sensor, a water tank and a control unit, wherein the pipeline is provided with a first working section and a second working section , the first working section is set inside the road surface, and the outside of the first working section is provided with a temperature sensor for monitoring the temperature of the road surface; the second working section is set in the water tank, and the water tank is provided with a water inlet and outlet for circulating water. A temperature sensor is set, and the two temperature sensors are connected to the control unit; the inside of the pipeline is under negative pressure, and a liquid-absorbing core is arranged axially along the inner wall of the pipeline; the liquid-absorbing core is filled with working fluid; several pipes are laid on the road surface.
相邻两根管道的间距为1m～3m。The distance between two adjacent pipes is 1m~3m.
管道的外侧套设有一底座，底座的顶面为弧形，底面为平面。A base is sheathed on the outer side of the pipeline, the top surface of the base is arc-shaped, and the bottom surface is plane.
管道外径为20mm，壁厚为2mm～3mm。The outer diameter of the pipe is 20 mm, and the wall thickness is 2 mm to 3 mm.
管道的真空度为1.3×10-2Pa。The vacuum degree of the pipeline is 1.3×10 -2 Pa.
工质选用丙酮，充液率为65％～75％。The working medium is acetone, and the liquid filling rate is 65% to 75%.
吸液芯布满整个管道。The wick covers the entire pipe.
水箱设置在绿化带中。The water tank is set in the green belt.
控制单元还连接有用于显示温度的显示装置。The control unit is also connected with a display device for displaying the temperature.
管道的长度为所铺设路段路面宽度的2/3-3/4。The length of the pipeline is 2/3-3/4 of the pavement width of the paved section.
与现有技术相比，本发明至少具有以下有益效果：控制单元能实时监测水箱中的水温和路面温度，根据路面实际温度情况，采用水箱中的循环水实现对工质的加热和冷却，路面温度的调控，真正实现夏季降温和冬季升温的功能，有效解决夏季路面温度过高、冬季大面积积雪等问题；管道中设置吸液芯，直管道，减少工质运行阻力，提高传热效率；第二工作段以及水箱在道路绿化带内部，节约空间，避免对周边环境的影响。Compared with the prior art, the present invention has at least the following beneficial effects: the control unit can monitor the water temperature in the water tank and the temperature of the road surface in real time, and according to the actual temperature of the road surface, the circulating water in the water tank is used to realize heating and cooling of the working medium, and the road surface The temperature control can truly realize the function of cooling in summer and heating up in winter, and effectively solve the problems of high road surface temperature in summer and large area of snow in winter; liquid-absorbing cores are installed in the pipeline, and the pipeline is straight to reduce the running resistance of the working fluid and improve heat transfer efficiency ; The second working section and the water tank are inside the road green belt, saving space and avoiding the impact on the surrounding environment.
进一步的，底座增大管道与路面的接触面积，避免管道在车辆荷载长时间的作用下出现偏移和损坏。Further, the base increases the contact area between the pipeline and the road surface, so as to avoid the deviation and damage of the pipeline under the action of the vehicle load for a long time.
进一步的，相邻两根管道的间距、管道的直径可以根据当地的气候环境进行合理的调整和设计以达到更好的效果。Furthermore, the distance between two adjacent pipes and the diameter of the pipes can be reasonably adjusted and designed according to the local climate environment to achieve better results.
进一步的，底座的底面设置为平面提高底座对管道的固定作用，有效防止管道在长期载荷下发生偏移。Further, the bottom surface of the base is set as a plane to improve the fixing effect of the base on the pipeline and effectively prevent the pipeline from shifting under long-term load.
附图说明Description of drawings
图1为本发明结构示意图。Fig. 1 is a schematic diagram of the structure of the present invention.
图2为本发明横断面剖视示意图。Fig. 2 is a cross-sectional schematic diagram of the present invention.
图3为本发明在路面铺设示意图。Fig. 3 is a schematic diagram of laying the present invention on the road surface.
附图中，1-底座，2-管道，3-吸液芯，4-工质通道，5-水箱，6-温度传感器，7-控制单元，8-进水口，9-出水口。In the drawings, 1-base, 2-pipe, 3-liquid-absorbing core, 4-working medium channel, 5-water tank, 6-temperature sensor, 7-control unit, 8-water inlet, 9-water outlet.
具体实施方式Detailed ways
下面结合附图和具体实施方式对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1和图2所示，一种基于重力热管原理的路面升降温装置，包括管道2、温度传感器6、水箱5以及控制单元7，其中，管道2设置有第一工作段和第二工作段，第一工作段设置在路面内，第一工作段的外侧设置有温度传感器6；第二工作段设置在水箱5中，水箱5设置在绿化带中，水箱5中设置温度传感器6，两个温度传感器6与控制单元7连接；管道2内部为负压，沿管道2的内壁轴向设置有吸液芯3；吸液芯3中充有工质；路面铺设有若干根管道2；控制单元7还连接有用于显示温度的装置。As shown in Figures 1 and 2, a road heating and cooling device based on the principle of gravity heat pipes includes a pipeline 2, a temperature sensor 6, a water tank 5 and a control unit 7, wherein the pipeline 2 is provided with a first working section and a second working section. Section, the first working section is set in the road surface, the outside of the first working section is provided with a temperature sensor 6; the second working section is set in the water tank 5, the water tank 5 is set in the green belt, and the water tank 5 is provided with a temperature sensor 6, two A temperature sensor 6 is connected with the control unit 7; the inside of the pipeline 2 is negative pressure, and a liquid-absorbing core 3 is arranged axially along the inner wall of the pipeline 2; the liquid-absorbing core 3 is filled with working fluid; several pipelines 2 are laid on the road surface; Unit 7 is also connected with means for displaying the temperature.
参考图1和图2，管道2外形为“一”字形，即底座与水箱的中轴线位于同一水平面；管道采用紫铜或碳钢，管径为20mm～25mm，壁厚为2mm～3mm，管道2的长度为所铺设路段路面宽度的2/3-3/4；底座1的顶面为弧形，底面为平面；热管内部真空度为1.3×10-2Pa；工质选用丙酮，充液率为65％～75％；吸液芯3布满整个管道，厚度为3mm～5mm；在路面修建过程中，预先将该装置底座1水平铺设在路面内部，底座1曲面向上，铺设深度为5～10cm，铺设间距为1m～3m，待路面修筑完成后，装置右端与水箱5相连，设置在绿化带内部，水箱内部放置温度传感器6，将温度传感器6与控制单元7相连接。Referring to Figure 1 and Figure 2, the shape of the pipe 2 is "one" shape, that is, the base and the central axis of the water tank are on the same horizontal plane; The length is 2/3-3/4 of the pavement width of the paved section; the top surface of the base 1 is arc-shaped, and the bottom surface is flat; the internal vacuum of the heat pipe is 1.3×10 -2 Pa; the working medium is acetone, and the liquid filling rate 65% to 75%; the liquid-absorbing core 3 covers the entire pipeline, with a thickness of 3 mm to 5 mm; during the road construction process, the base 1 of the device is laid horizontally inside the road in advance, with the curved surface of the base 1 facing upwards, and the laying depth is 5 mm to 5 mm. 10cm, and the laying distance is 1m~3m. After the road surface is built, the right end of the device is connected to the water tank 5 and installed inside the green belt. A temperature sensor 6 is placed inside the water tank, and the temperature sensor 6 is connected to the control unit 7.
作为本发明的一个可选实施例，第二工作端在水箱5中采用盘管式设置。As an optional embodiment of the present invention, the second working end is arranged in the water tank 5 as a coil.
当路面温度过高时，选用温度低于25℃生活废水、自来水或其他液体由进水口8充入，出水口9流出，控制单元7对水箱5内的水温进行实时监测和显示；第二工作段为冷凝段，这种情况下，由于路面温度过高，第一工作段为蒸发段，第二工作段为冷凝段，蒸发段的工质因吸收热量而蒸发，转化为气相，蒸发段的压力随之增大，气相工质在压力差的作用下从工质通道4流向冷凝段，与相对温度较低的冷凝段管壁接触后放出潜热冷凝转化成液态，热量被水箱5内的水吸收，液态工质在毛细作用下沿吸液芯3流回蒸发段再蒸发气化，循环将蒸发段的热量源源不断地传到冷凝段，实现对路面的降温。When the temperature of the road surface is too high, use domestic waste water, tap water or other liquids with a temperature lower than 25°C to fill in from the water inlet 8 and flow out from the water outlet 9, and the control unit 7 will monitor and display the water temperature in the water tank 5 in real time; the second work The section is the condensation section. In this case, due to the high temperature of the road surface, the first working section is the evaporation section, and the second working section is the condensation section. The pressure increases accordingly, and the gas-phase working medium flows from the working medium channel 4 to the condensation section under the action of the pressure difference, and releases latent heat after contacting the tube wall of the condensation section with a relatively low temperature. Absorption, the liquid working medium flows back to the evaporating section along the liquid-absorbing core 3 under the capillary action, and then evaporates and gasifies, and the heat from the evaporating section is continuously transferred to the condensing section in a cycle to cool down the road surface.
当路面温度过低，出现积雪现象时，选用高于30℃的生活废水、暖气管道水由进水口8充入，出水口9流出，控制单元7对水箱5内的水温进行实时监测和显示；这种情况下，由于水箱温度高，第二工作段为蒸发段，第一工作段变为冷凝段，蒸发段的工质因吸收热量而转化为气态，气态工质沿工质通道4流向冷凝段，与相对温度较低的冷凝段管壁接触后放出潜热冷凝成液态，热量被路面吸收，液态工质在毛细作用下沿吸液芯3流回蒸发段再蒸发，如此循环将蒸发段的热量源源不断地传到冷凝段，实现对路面的升温，从而实现道路融冰除雪。When the road surface temperature is too low and snow accumulation occurs, use domestic waste water higher than 30°C, and the heating pipe water is filled into the water inlet 8 and flows out from the water outlet 9. The control unit 7 monitors and displays the water temperature in the water tank 5 in real time. In this case, due to the high temperature of the water tank, the second working section is an evaporation section, and the first working section becomes a condensation section, and the working fluid in the evaporation section is transformed into a gaseous state due to heat absorption, and the gaseous working medium flows along the working medium channel 4 Condensation section, after contacting the pipe wall of the condensation section with a relatively low temperature, it releases latent heat and condenses into a liquid state. The heat is absorbed by the road surface, and the liquid working medium flows back to the evaporation section along the liquid-absorbing core 3 under capillary action and evaporates again. The heat of the road is continuously transmitted to the condensation section to heat up the road surface, thereby realizing road melting and snow removal.
本发明的一个实施例，水箱中还设置有加热单元，加热单元和控制单元7连接，控制单元7能通过控制加热单元对水箱5中的水加热，使水温高于30℃；加热单元采用电加热器，电加热器设置在水箱中，需要工作的时候，当热水来源出现故障或热水供应不足时启动加热器，使水箱中的水不低于30℃，不需要工作时，加热单元还能使水箱5中的水温维持在冰点以上，确保系统的可靠性。In an embodiment of the present invention, a heating unit is also provided in the water tank, and the heating unit is connected to the control unit 7, and the control unit 7 can heat the water in the water tank 5 by controlling the heating unit to make the water temperature higher than 30° C.; Heater, the electric heater is set in the water tank, when it needs to work, when the hot water source fails or the hot water supply is insufficient, start the heater, so that the water in the water tank is not lower than 30 ℃, when it does not need to work, the heating unit It can also keep the water temperature in the water tank 5 above the freezing point to ensure the reliability of the system.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141429.7A CN108951357A (en) | 2018-09-28 | 2018-09-28 | A kind of road surface heating and cooling device based on gravity assisted heat pipe principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811141429.7A CN108951357A (en) | 2018-09-28 | 2018-09-28 | A kind of road surface heating and cooling device based on gravity assisted heat pipe principle |
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| CN108951357A true CN108951357A (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112030650A (en) * | 2020-09-01 | 2020-12-04 | 中国科学院西北生态环境资源研究院 | Heat pipe body, heat pipe, heat pipe foundation system of yin and yang slope roadbed and its construction method |
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| CN112030650A (en) * | 2020-09-01 | 2020-12-04 | 中国科学院西北生态环境资源研究院 | Heat pipe body, heat pipe, heat pipe foundation system of yin and yang slope roadbed and its construction method |
| CN112030650B (en) * | 2020-09-01 | 2021-09-24 | 中国科学院西北生态环境资源研究院 | Heat pipe body, heat pipe roadbed system of yin-yang slope roadbed and construction method thereof |
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Application publication date: 20181207 |