CN204311316U - Bridge floor making ice system - Google Patents
Bridge floor making ice system Download PDFInfo
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- CN204311316U CN204311316U CN201420712265.XU CN201420712265U CN204311316U CN 204311316 U CN204311316 U CN 204311316U CN 201420712265 U CN201420712265 U CN 201420712265U CN 204311316 U CN204311316 U CN 204311316U
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Abstract
The utility model discloses a kind of bridge floor making ice system, primarily of heat pump, heat preservation storage water tank, circulation pump, feed pipe, return pipe, heating unit composition.Adopt heat pump as thermal source, utilize the efficient conduction of heat pump, underground heat is converted to high-temperature-hot-water, hot water is delivered to by circulation pump, feed pipe the heating unit be laid in bridge deck pavement again, heating unit is to bridge floor heating and thermal insulation, maintain bridge deck temperature above freezing, prevent bridge floor water freezing, the water of heating unit is back to heat preservation storage water tank by return pipe again.This system adopts less energy to prevent bridge floor water from becoming ice, decreases the loss in power conversion.The utility model is applied in highway bridge, effectively can reduce bridge floor and freeze and cause the generation of traffic accident.
Description
Technical field
The utility model relates to a kind of bridge floor making ice system, belongs to bridge engineering field, particularly prevents the system that bridge floor freezes.
Background technology
Northern China winter temperature is lower, and sleety weather bridge floor easily freezes, and causes very large hidden danger to traffic safety.Current bridge floor deicing mainly contains removing method and melts and sends out.Mechanical Method is more traditional, and adopt freezing on artificial or mechanical output bridge floor, this method efficiency is low, easily damages bridge deck pavement; The method of melting is the bridge floor spreading chemical material frozen, and main component is salt compounds, and it is high that the method deicing efficiency comparatively removes method, but to environment, salt compounds also can cause corrosion to bridge construction reinforcing bar, should not too much adopt.In addition also have hot fusion method, namely imbed electric calorifie installation when bridge construction, adopt electrical heating to make bridge floor melt ice.General electric energy conversion becomes the most frequently used method that obtains of heat energy to be adopt heating wire, but its converting electric energy is that heat energy efficiency is lower, adopts the method ice-melt of electric heating to consume a large amount of electric energy.
Environment temperature residing for water declines, and build-ups ice when being reduced to the below freezing of water.It is 4.2 × 103J/kg that specific heat of water holds, and namely the water of 1kg often reduces the heat that 1 DEG C needs release 4.2 × 103J; Water at normal atmospheric pressure freezing point is 0 DEG C, and the melting heat of ice is 3.34 × 105J/kg, and the ice that namely water of 0 DEG C forms 0 DEG C needs the heat of release 3.34 × 105J/kg; After water build-ups ice, the temperature of ice declines with environment temperature and also can reduce, and the specific heat capacity of ice is the half of water, i.e. 2.1 × 103J/kg, and after water build-ups ice, temperature still can release heat as continued decline.On the contrary, when the ice temperature of less than 0 DEG C is increased to 0 DEG C, need to absorb heat, ice-out becomes water needs more heat, and 0 DEG C of ice-out of 1kg becomes the water of 0 DEG C, needs the heat of absorption 3.34 × 105J/kg.Therefore, not only electric energy conversion heat energy efficiency is low for electro-heat deicing, and becomes after ice releases a large amount of heats at water and melt as water again, and than maintaining, the water required heat that do not freeze is larger, and electro-heat deicing is not the method that bridge making ice is good.
Summary of the invention
The purpose of this utility model is: provide a kind of bridge floor making ice system, utilize the inverse Carnot's principle of heat pump, by medium, heat is delivered to the water of high temperature from cryogenic object.Heat pump has higher heating capacity and the ratio of input power, usually reaches about 3 ~ 4, and that is, the heat energy of 3 ~ 4 times of self institute's energy requirement can be sent to high temp objects from cryogenic object by heat pump.Bridge floor making ice system utilizes heat pump as thermal source exactly, heat lower for underground is delivered to the heat preservation storage water tank of high temperature by heat pump.Beneficial effect is: adopt high efficiency heat pump that underground heat is converted into high-temperature-hot-water, by circulation pump, heating unit, bridge floor is heated again, maintain the temperature of bridge floor water more than 0 DEG C, less energy is adopted to prevent bridge floor water from becoming ice,---ice---power conversion between water that decreases water, decreases energy loss.
The utility model is realized by following technology: described bridge floor making ice system, form primarily of heat pump 1, heat preservation storage water tank 2, circulation pump 3, feed pipe 4, return pipe 5, heating unit 6, described heat pump 1 mainly comprises compressor 7, evaporimeter 8, condenser 9, expansion valve 10, condenser 9 is the water tanks arranging coil pipe, condenser 9 water tank is communicated with heat preservation storage water tank 2, the hot water of heat preservation storage water tank 2 adopts circulation pump 3 to pressurize, enter heating unit 6 by feed pipe 4, then flow back to heat preservation storage water tank 2 through return pipe 5.The compressor 7 of heat pump 1, condenser 9, expansion valve 10 and heat preservation storage water tank 2 and circulation pump 3 are arranged in equipment room 11, and the evaporimeter 8 of heat pump 1 is arranged on the end of the bridge underground outside equipment room 11.The operating principle of heat pump is as follows: in the system of heat pump 1, be filled with a kind of refrigerant, after low pressure refrigerant is compressed by compressor 7, the gas becoming HTHP is discharged, the cold media gas of HTHP flows through condenser 9, the water in outside heats through the coil pipe conduction of condenser 9 by heat, the refrigerant cooled down is liquefy under the continuous action of pressure, evaporimeter 8 is entered after expansion valve 10, because the pressure of evaporimeter 8 reduces suddenly, liquid refrigerant evaporates rapidly and becomes gaseous state in evaporimeter 8, and absorb the heat of underground, complete primary energy conversion cycle.The water tank of condenser 9 is communicated with heat preservation storage water tank 2, and the setting position of heat preservation storage water tank 2 is higher than condenser 9, rely on the temperature difference circulation constantly by water heated storage in heat preservation storage water tank 2.Heating unit 6 forms one group, coil space 10 ~ 20cm by the steel pipe convolution coil pipe of diameter 20 ~ 25mm, and one group of wide 1.5 ~ 2.0m of unit, length stretches into 0.5 ~ 1.0m in sidewalk 13.The water inlet pipe 61 of heating unit 6 is connected with feed pipe 4, and outlet pipe 62 is connected with return pipe 5, often organizes heating unit 6 and is connected in parallel with feed pipe 4 and return pipe 5, connects side by side and the origin temp high terminal temperature of heating unit 6 can be avoided low.Heating unit 6 is arranged in pontic 14 top concrete bridge deck pavement layer 15, and be asphalt surface course 16 above, feed pipe 4 and return pipe 5 are laid in sidewalk 13 times.Heat preservation storage water tank 2, circulation pump 3, feed pipe 4, return pipe 5, heating unit 6 form a closed loop, and loop Inner eycle medium is water, adds antifreezing agent in water.When temperature is close to 0 DEG C, start bridge floor making ice system, the underground heat of low temperature is converted to high-temperature-hot-water and is stored in heat preservation storage water tank 2 by heat pump 1, heating unit 6 is delivered to again by circulation pump 3, feed pipe 4, heating unit 6 is by bridge deck pavement 15 and asphalt surface course 16 heat temperature raising, make bridge deck temperature remain on 0.5 ~ 1 DEG C above freezing, prevent bridge floor sleet from freezing.Equipment room 11 is positioned at the underground beyond pontic 14, and manhole 12 is left on equipment room 11 top, and easy access is safeguarded.
Bridge floor making ice system can arrange air-temperature sensor, bridge deck temperature sensor control device is local controls automatically, also can pass through network or Wireless remote control.
Accompanying drawing explanation
Fig. 1 is the utility model floor map;
Fig. 2 is the A-A sectional drawing of Fig. 1.
In figure: 1-heat pump, 2-heat preservation storage water tank, 3-circulation pump, 4-feed pipe, 5-return pipe, 6-heating unit, 7-compressor, 8-evaporimeter, 9-condenser, 10-expansion valve, 11-equipment room, 12-manhole, 13-sidewalk, 14-pontic, 15-bridge deck pavement, 16-asphalt surface course, 61-water inlet pipe, 62-outlet pipe.
Detailed description of the invention
Enforcement of the present utility model, together will design bridge floor making ice system when bridge design, simultaneous construction during bridge construction.Calculate required heat requirement according to conditions such as the lowest temperatures of bridge floor area, bridge their location during design, and should increase by the pipeline heat loss of 5%.Floor map of the present utility model is shown in Fig. 1, and what draw in figure is the part plan of end of the bridge.Bridge floor making ice system forms a closed loop primarily of heat pump 1, heat preservation storage water tank 2, circulation pump 3, feed pipe 4, return pipe 5, heating unit 6, and loop Inner eycle medium is water, adds antifreezing agent in water.Feed pipe 4 and return pipe 5 are the thermal pipes with insulation layer, and interface adopts welding, and feed pipe 4 and the end of return pipe 5 are closed mutually discrete.The high-temperature-hot-water of heat preservation storage water tank 2 enters feed pipe 4 under the pressure of circulation pump 3, then flows into return pipe 5 by each group of heating unit 6, finally flows back to heat preservation storage water tank 2.Heat pump 1 is the thermal source of this system, is the heat pump high-efficiency water heater utilizing inverse Carnot's principle.Heat pump has higher heating capacity and the ratio of input power, usually reaches about 3 ~ 4, and that is, the heat energy of 3 ~ 4 times of self institute's energy requirement can be sent to high temp objects from cryogenic object by heat pump.Bridge floor making ice system utilizes heat pump as thermal source exactly, underground is delivered to the heat preservation storage water tank of high temperature by heat pump compared with the heat of low temperature.Be heat pump 1 in Fig. 1 dotted line frame, mainly comprise compressor 7, evaporimeter 8, condenser 9, expansion valve 10, condenser 9 is the water tanks arranging coil pipe, and condenser 9 water tank is communicated with heat preservation storage water tank 2.The operating principle of heat pump is as follows: in the system of heat pump 1, be filled with a kind of refrigerant, through compressor 7 by after the compression of the low pressure refrigerant of backflow, the gas becoming HTHP is discharged, the cold media gas of HTHP flows through condenser 9, the water in outside heats through the coil pipe conduction of condenser 9 by heat, the refrigerant cooled down is liquefy under the continuous action of pressure, evaporimeter 8 is entered after expansion valve 10, because the pressure of evaporimeter 8 reduces suddenly, liquid refrigerant evaporates rapidly and becomes gaseous state in evaporimeter 8, and the heat absorbed in the soil of underground, heat is delivered to the water of high temperature from cryogenic object, complete primary energy conversion cycle.Heat pump has a complete set of equipment of various different size.
The compressor 7 of heat pump 1, condenser 9, expansion valve 10 and heat preservation storage water tank 2 and circulation pump 3 are arranged in equipment room 11, and the evaporimeter 8 of heat pump 1 is arranged on the end of the bridge underground outside equipment room 11, should consider dismantled and assembled maintenance.Equipment room 11 is positioned at the underground beyond pontic 14, and equipment room adopts steel concrete to build, and manhole 12 is left on equipment room 11 top, and easy access is safeguarded.The water tank of the condenser 9 of heat pump 1 is communicated with heat preservation storage water tank 2, and the setting position of heat preservation storage water tank 2 is higher than condenser 9, rely on the temperature difference circulation constantly by water heated storage in heat preservation storage water tank 2.The hot water of heat preservation storage water tank 2 adopts circulation pump 3 to pressurize, and enters heating unit 6, then flow back to heat preservation storage water tank 2 through return pipe 5 by feed pipe 4.Heating unit 6 forms one group by the steel pipe convolution coil pipe of diameter 20 ~ 25mm, spacing 10 ~ the 20cm of coil pipe, one group of wide 1.5 ~ 2.0m of unit, length stretches into 0.5 ~ 1.0m in sidewalk 13, the water inlet pipe 61 of heating unit 6 is connected with feed pipe 4, outlet pipe 62 is connected with return pipe 5, often organizes heating unit 6 and is connected in parallel with feed pipe 4 and return pipe 5, connects side by side and the origin temp high terminal temperature of heating unit 6 can be avoided low.Heating unit 6 is arranged in pontic 14 top concrete bridge deck pavement layer 15, heating unit 6 is arranged on the steel mesh reinforcement of bridge deck pavement 15, together builds with deck paving of concrete, is asphalt surface course 16 above, feed pipe 4 and return pipe 5 are laid in sidewalk 13 times, see Fig. 2.
The setting of this system can arrange one or more sets according to bridge floor heat requirement, and bridge is longer can be arranged in two of a bridge end of the bridge underground; Wider or the double width bridge of bridge floor can at side end of the bridge horizontally set two cover system, under feed pipe and return pipe are separately positioned on the sidewalk of bridge both sides.
In actual applications, should in conjunction with weather forecast, will be ready at temperature on average lower than 5 DEG C, when weather forecast will have sleet, in advance by good for hot water storage in heat preservation storage water tank 2, when temperature is close to 0 DEG C, start bridge floor making ice system, the underground heat of low temperature is converted to high-temperature-hot-water and is stored in heat preservation storage water tank 2 by heat pump 1, heating unit 6 is delivered to again by circulation pump 3, feed pipe 4, heating unit 6, by bridge deck pavement 15 and asphalt surface course 16 heat temperature raising, makes bridge deck temperature remain on 0.5 ~ 1 DEG C above freezing, prevents bridge floor sleet from freezing.Bridge floor making ice system can arrange air-temperature sensor, bridge deck temperature sensor control device is local controls automatically, also can pass through network or Wireless remote control.
Claims (5)
1. a bridge floor making ice system, it is characterized in that: primarily of heat pump (1), heat preservation storage water tank (2), circulation pump (3), feed pipe (4), return pipe (5), heating unit (6) forms, described heat pump (1) mainly comprises compressor (7), evaporimeter (8), condenser (9), expansion valve (10), condenser (9) is the water tank arranging coil pipe, condenser (9) water tank is communicated with heat preservation storage water tank (2), the hot water of heat preservation storage water tank (2) adopts circulation pump (3) pressurization, heating unit (6) is entered by feed pipe (4), heat preservation storage water tank (2) is flowed back to again through return pipe (5).
2. bridge floor making ice system according to claim 1, it is characterized in that: the compressor (7) of described heat pump (1), condenser (9), expansion valve (10) and heat preservation storage water tank (2) and circulation pump (3) are arranged in equipment room (11), and the evaporimeter (8) of heat pump (1) is arranged on equipment room (11) end of the bridge underground outward.
3. bridge floor making ice system according to claim 1, it is characterized in that: described heating unit (6) forms one group by the steel pipe convolution coil pipe of diameter 20 ~ 25mm, coil space 10 ~ 20cm, one group of wide 1.5 ~ 2.0m of unit, length stretches into 0.5 ~ 1.0m in sidewalk (13), the water inlet pipe (61) of heating unit (6) is connected with feed pipe (4), outlet pipe (62) is connected with return pipe (5), often organize heating unit (6) to be connected in parallel with feed pipe (4) and return pipe (5), heating unit (6) is arranged in pontic (14) top concrete bridge deck pavement layer (15), be asphalt surface course (16) above, under feed pipe (4) and return pipe (5) are laid in sidewalk (13).
4. bridge floor making ice system according to claim 1, it is characterized in that: described heat preservation storage water tank (2), circulation pump (3), feed pipe (4), return pipe (5), heating unit (6) form a closed loop, loop Inner eycle medium is water, adds antifreezing agent in water.
5. bridge floor making ice system according to claim 2, is characterized in that: described equipment room (11) is positioned at the underground beyond pontic (14), and manhole (12) is left on equipment room (11) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420712265.XU CN204311316U (en) | 2014-11-25 | 2014-11-25 | Bridge floor making ice system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420712265.XU CN204311316U (en) | 2014-11-25 | 2014-11-25 | Bridge floor making ice system |
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| CN204311316U true CN204311316U (en) | 2015-05-06 |
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| CN201420712265.XU Active CN204311316U (en) | 2014-11-25 | 2014-11-25 | Bridge floor making ice system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679881A (en) * | 2018-05-10 | 2018-10-19 | 王梅军 | Odevity is alternatively arranged long rectangle reciprocating cold medium heater and its snow melt de-icing method |
| CN110373970A (en) * | 2019-07-29 | 2019-10-25 | 湖北工业大学 | A kind of overhead road surface underground heat ice-melting structure and its construction method |
| CN110512512A (en) * | 2019-09-29 | 2019-11-29 | 中建七局第四建筑有限公司 | A kind of bridge earth source heat pump heat-exchange system and its construction method |
| CN111235986A (en) * | 2020-01-12 | 2020-06-05 | 邸帅 | Environment-friendly highway structure and construction method thereof |
| CN111287084A (en) * | 2020-03-19 | 2020-06-16 | 湘潭大学 | Intelligent anti-freezing bridge deck structure and construction method |
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
-
2014
- 2014-11-25 CN CN201420712265.XU patent/CN204311316U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679881A (en) * | 2018-05-10 | 2018-10-19 | 王梅军 | Odevity is alternatively arranged long rectangle reciprocating cold medium heater and its snow melt de-icing method |
| CN110373970A (en) * | 2019-07-29 | 2019-10-25 | 湖北工业大学 | A kind of overhead road surface underground heat ice-melting structure and its construction method |
| CN110512512A (en) * | 2019-09-29 | 2019-11-29 | 中建七局第四建筑有限公司 | A kind of bridge earth source heat pump heat-exchange system and its construction method |
| CN111235986A (en) * | 2020-01-12 | 2020-06-05 | 邸帅 | Environment-friendly highway structure and construction method thereof |
| CN111287084A (en) * | 2020-03-19 | 2020-06-16 | 湘潭大学 | Intelligent anti-freezing bridge deck structure and construction method |
| CN111287084B (en) * | 2020-03-19 | 2021-10-15 | 湘潭大学 | Intelligent anti-freezing bridge deck structure and construction method |
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
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