CN210177444U - Anti-ice-pulling system for concrete dam pattern hanging pipe in high and cold area - Google Patents
Anti-ice-pulling system for concrete dam pattern hanging pipe in high and cold area Download PDFInfo
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- CN210177444U CN210177444U CN201921002157.2U CN201921002157U CN210177444U CN 210177444 U CN210177444 U CN 210177444U CN 201921002157 U CN201921002157 U CN 201921002157U CN 210177444 U CN210177444 U CN 210177444U
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Abstract
The utility model discloses an anti-ice-pulling system for concrete dam floral tube in high and cold regions, which comprises a water spray floral tube, a water pump, a temperature sensor, a flowmeter, a control system and the like; a plurality of water spray perforated pipes are distributed on the concrete dam face in order through fixing anchor rods; 6 layers of 12cm XPS benzene boards are covered on the surface of the concrete dam or a layer of 12 cm-thick heat insulation material is sprayed on the surface of the concrete dam; the parts of the plurality of spray floral tubes exposed in the air are wrapped by or sprayed with heat insulation materials; the water spray floral tubes are communicated with a main water pipeline, and the main water pipeline is communicated with a water pump positioned in a deep water area; the utility model discloses a fix the water spray floral tube on the dam facing to at the fixed thermometer of certain quantity of dam facing, utilize the temperature information that real time monitoring arrived to adjust floral tube and open quantity and injection temperature, intensity etc. effectively alleviate the frozen temperature of dam facing, reduce the ice and pull out the damage of phenomenon to the dam facing.
Description
Technical Field
The utility model belongs to the technical field of anti ice pulls out, concretely relates to anti ice of high and cold district concrete dam string flower pipe pulls out system.
Background
The high and cold areas are high in latitude and cold in winter, and the dam face needs to be permanently insulated in order to prevent the concrete dam face from being damaged by low-temperature freezing. The upper part of the ice blocks can generate a pulling force effect on the dam surface under the condition that the water level rises due to the buoyancy effect of water after the upstream surface is frozen, the upper part of the ice blocks can generate the pulling force effect on the dam surface under the condition that the water level falls, the dam surface can be damaged and cracked through continuous pulling and pulling effects on the dam surface, leakage can be caused, the partial damage of the dam body can be caused, the integral damage of the dam body can be caused seriously, and the heat preservation work of the dam surface is very important.
The water storage is continued after the ice is sealed on the reservoir surface, the ice surface of the reservoir is raised, the upstream dam surface is pulled upwards, the water level of the reservoir is lowered to lower the ice surface when water is introduced, the dam surface is pulled downwards, and the upward or downward pulling effect is the ice pulling phenomenon. The ice-pulling phenomenon is very common in severe cold areas, and after a heat preservation measure is usually arranged on the upstream face of the concrete dam face, the ice-pulling effect is very easy to occur in winter, so that the heat preservation measure is out of work, and the damage of the dam face is caused.
The ice-pull phenomenon is mostly existed in the hydraulic engineering of high-cold and high-cold areas. On old water conservancy building, owing to do not keep moist, the heat preservation, the ice is pulled out direct action on concrete or soil stone bank protection, though because the basic unit is rigid structure, nevertheless owing to have certain hydroscopicity, the ice sheet can firmly be attached to water conservancy building surface, causes water conservancy building surface concrete fracture to destroy, and adverse effect such as inside stone, reinforcing bar are exposed. For newly-built hydraulic engineering in high-cold and high-cold areas at present, effective moisture preservation and heat preservation measures such as construction of waterproof layers or heat preservation layers and the like can be carried out on the surfaces of buildings in order to reduce temperature cracks and humidity cracks. Thus, ice pushing force and ice pulling damage can directly act on the moisture-preserving and heat-insulating layer. In the process of freezing in winter, the waterproof layer and the heat preservation layer can be damaged by ice pushing and ice pulling, and if the waterproof layer and the heat preservation layer can not effectively resist ice pushing force and ice pulling, the service life can be shortened, and even serious problems such as falling can occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the above-mentioned among the prior art not enough, provide an alpine region concrete dam string flower pipe anti-icing system of pulling out to solve the problem that the alpine region concrete dam easily appears icing and pulls out the phenomenon.
In order to achieve the purpose, the utility model adopts the technical proposal that:
an anti-icing system for concrete dam floral tube hanging in a high and cold area comprises a control system, a plurality of water spray floral tubes and water suction pumps; the water spray perforated pipes are distributed on the concrete dam face in order through fixing anchor rods, the distance between every two adjacent water spray perforated pipes in the vertical direction is 0.5m, and the distance between every two adjacent water spray perforated pipes in the horizontal direction is 1 m; covering 6 layers of 12cm XPS benzene boards on the surface of the concrete dam or spraying a layer of heat insulation material with the thickness of 12 cm; the parts of the plurality of spray floral tubes exposed in the air are wrapped by a rubber-plastic sponge heat-insulating material or sprayed with a polyurethane heat-insulating material;
the water spraying floral tubes are all communicated with a main water pipeline, and the main water pipeline is communicated with a water pump positioned in a deep water area; a flowmeter and an electromagnetic valve are arranged on the main water pipeline; at least one temperature sensor is arranged close to the single water spray floral tube; and the temperature sensor, the flowmeter, the electromagnetic valve and the water suction pump are all connected with a control system.
Preferably, the surface of the concrete dam is covered with a thermal insulation material with the thickness of not less than 12cm, and the water spray perforated pipe is fixed on the thermal insulation material on the surface of the concrete dam through a fixing anchor rod.
Preferably, the distance between adjacent temperature sensors is 2m, and at least two temperature sensors are embedded at the same position.
The utility model provides an anti ice-pulling system of alpine region concrete dam string flower pipe has following beneficial effect:
the utility model discloses a fix the water spray floral tube on the dam facing to at the fixed thermometer of certain quantity of dam facing, utilize the temperature information regulation water spray floral tube that real time monitoring arrived to open quantity, injection temperature, intensity etc. effectively alleviate the frozen temperature of dam facing, reduce the ice and pull out the damage of phenomenon to the dam facing.
Drawings
Fig. 1 is a system control structure diagram of an anti-icing system of a concrete dam flower tube hanging in a high and cold area.
FIG. 2 is a cross-sectional view of a dam body of the anti-ice-uplift system of the concrete dam pattern hanging pipe in the alpine region.
FIG. 3 is a longitudinal section of a dam body of the anti-ice-pulling system of the concrete dam pattern-hanging pipe in the alpine region.
Wherein, 1, controlling the system; 2. a concrete dam; 3. a temperature sensor; 4. spraying a floral tube; 5. a main water pipeline; 6. a flow meter; 7. a water pump; 8. an electromagnetic valve; 9. a heat-insulating layer; 10. ice bodies; 11. an upstream face; 12. a dam body.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
According to an embodiment of the application, referring to fig. 2 and 3, the pipe ice-pulling resisting system for the concrete dam in the alpine region comprises a control system 1, a plurality of water spraying pipes 4 and a water suction pump 7.
The water spray perforated pipe 4 is regularly distributed on the surface of the concrete dam 2 through the fixed anchor rods, and the water spray perforated pipe 4 can be vertically arranged in a snake shape or horizontally arranged in a snake shape.
When the axis of the concrete dam 2 is long, a plurality of water spray perforated pipes 4 can be arranged in sections; the length of the single spray floral tube 4 is different with the tube diameter, and when the inner diameter of the tube is about 1 inch (2.54cm), the length of the single tube is not more than 250 m.
The water spray floral tube 4 is connected with a water pump 7 through a main water pipeline 5 and is used for introducing water in a deep water area into the water spray floral tube 4; all the water spray floral tubes 4 are wrapped by heat-insulating materials to prevent freezing, circulating liquid in the water tubes can be waterproof liquid, and the anti-freezing index is determined according to the lowest temperature of the area where the dam is located.
6 layers of 12cm XPS benzene boards are covered on the surface of the concrete dam 2 or a layer of 12cm thermal insulation material is sprayed on the surface of the concrete dam, and the parts of the water spray floral tubes 4 exposed in the air are wrapped or sprayed with the thermal insulation material, so that the heat loss is reduced.
The water spray floral tubes 4 are all communicated with a main water pipeline 5, and the main water pipeline 5 is communicated with a water pump 7 positioned in a deep water area; a flowmeter 6 and an electromagnetic valve 8 are arranged on the main water pipeline 5; at least one temperature sensor 3 is arranged close to a single water spray floral tube 4; the temperature sensor 3, the flowmeter 6, the electromagnetic valve 8 and the water pump 7 are all connected with the control system 1.
The temperature sensors 3 are arranged on the concrete dam 2, and the distance between every two adjacent temperature sensors 3 is 2m and used for collecting the temperature information on the surface of the concrete dam 2 at present in real time.
Utilize suction pump 7 to draw water from the deep water district and supply water to spray floral tube 4 or heat the back from the deep water district and supply water to spray floral tube 4, spray floral tube 4 with water spray to the concrete dam face, avoid freezing, avoid producing the ice phenomenon of pulling out.
The control system 1 controls the working state of the electromagnetic valve 8 according to the measurement results of the temperature sensor 3 and the flowmeter 6, ensures enough water temperature and water quantity to prevent the dam surface from icing or melting ice, feeds the actual measurement result of the dam surface temperature back to the control system 1 in real time, and the control system 1 receives the information of the concrete dam 2 and controls the electromagnetic valve 8 to be opened or closed.
The calculation method of the lift of the water pump 7 comprises the following steps:
wherein H is the pump head, P1、P2Pressure, v, at the inlet and outlet of the water pipe1、v2Respectively the flow velocity at the inlet and outlet of the water pipe, z1、z2Elevation of an inlet and an outlet of a water pipe, rho is density of water, and g is gravity acceleration.
The outlet flow rate of the sprinkler pipe 4 can be calculated according to the following formula:
S1v1＝NS2v2
wherein S is1Cross-sectional area of inlet of pipeline, S2Is the area of the cross section of the outlet of the pipeline, v1Is the inlet flow velocity, v2The outlet flow rate is N, and the number of the outlets of the water pipes is N.
According to an embodiment of the application, the thermal insulation material is reinforced on the dam surface, and the water spray perforated pipe is arranged on the thermal insulation material, and the specific working principle is as follows:
s1, covering 6 layers of 12cm XPS benzene boards on the concrete dam surface or spraying a layer of 12 cm-thick heat insulation material;
s2, mounting a plurality of water spray floral tubes 4 on the heat insulation material, and fixing the water spray floral tubes on the surface of the concrete dam 2;
s3, collecting temperature information in real time by the temperature sensors 3 distributed around the sprinkler head pipe 4, and transmitting the temperature information to the control system 1;
s4, wrapping or spraying heat insulation materials on the exposed part of the sprinkler pipe 4 in the air;
and S5, the control system 1 controls the water pump to be started according to the received temperature information, and water in the deep water area is introduced into the water spray floral tube 4 and sprayed onto the surface of the concrete dam 2.
According to an embodiment of the application, the compound heated board of assembly water spray floral tube is installed on the concrete dam facing, and its concrete theory of operation is:
t1, covering a layer of heat insulation board on the surface of the concrete dam 2;
t2, arranging the water spray floral tube 4 on the heat insulation plate and fixing the whole body on the concrete dam face;
t3, collecting temperature information in real time by temperature sensors 3 distributed around the heat-insulation plate, and transmitting the temperature information to a control system 1;
t4, the part of the sprinkler pipe 4 exposed in the air is wrapped by or sprayed with heat insulation materials;
t5, the control system 1 controls the water pump to be started according to the received temperature information, and water in the deep water area is introduced into the water spray floral tube 4 and sprayed to the surface of the concrete dam 2.
According to an embodiment of the application, with the water spray floral tube direct mount on the concrete dam facing, its concrete theory of operation does:
b1, mounting a plurality of water spray floral tubes 4 on the surface of the concrete dam 2;
b2, collecting temperature information in real time by the temperature sensors 3 distributed around the sprinkler head pipe 4, and transmitting the temperature information to the control system 1;
b3, wrapping or spraying heat insulation materials on the exposed part of the sprinkler pipe 4 in the air;
b4, the control system 1 controls the water pump to be started according to the received temperature information, and water in the deep water area is introduced into the water spray floral tube 4 and sprayed onto the surface of the concrete dam 2.
Wherein, the total energy required for preventing the 2 surfaces of the concrete dam from icing or melting ice blocks on the dam surface is calculated, and the energy required for increasing the unit area of the dam surface to the target temperature is as follows:
Q＝cama(t-t0)
wherein Q is the heat quantity required by the unit area and unit thickness of the dam surface, and caIs the specific heat of air, maIs the mass of air per unit area and unit thickness of the dam surface, t is the target temperature, t0The current temperature value of the dam face is measured actually.
The utility model discloses a fix water spray floral tube 4 on the dam facing to at the fixed thermometer of certain quantity of dam facing, utilize the temperature information regulation water spray floral tube 4 that real time monitoring arrived to open quantity, injection temperature, intensity etc. effectively alleviate the dam facing temperature that freezes, reduce the damage of ice-pulling phenomenon to the dam facing.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (3)
1. The utility model provides an anti ice-pulling system of alpine region concrete dam flower hanging pipe which characterized in that: comprises a control system, a plurality of water spray floral tubes and water pumps; the water spray perforated pipes are distributed on the concrete dam face in order through fixing anchor rods, the distance between every two adjacent water spray perforated pipes in the vertical direction is 0.5m, and the distance between every two adjacent water spray perforated pipes in the horizontal direction is 1 m; 6 layers of 12cm XPS benzene boards are covered on the surface of the concrete dam or a layer of heat insulation material with the thickness of 12cm is sprayed on the surface of the concrete dam; the parts of the plurality of water spray floral tubes exposed in the air are wrapped by a rubber-plastic sponge heat-insulating material or sprayed with a polyurethane heat-insulating material;
the water spraying floral tubes are all communicated with a main water pipeline, and the main water pipeline is communicated with a water suction pump positioned in a deep water area; a flowmeter and an electromagnetic valve are installed on the main water pipeline; at least one temperature sensor is arranged close to the single water spray floral tube; and the temperature sensor, the flowmeter, the electromagnetic valve and the water suction pump are all connected with a control system.
2. The anti-icing system for concrete dam floral tubes in alpine regions according to claim 1, wherein: the surface of the concrete dam is covered with a heat insulation material with the thickness not less than 12cm, and the water spray perforated pipe is fixed on the heat insulation material on the surface of the concrete dam through a fixing anchor rod.
3. The anti-icing system for concrete dam floral tubes in alpine regions according to claim 1, wherein: the distance between adjacent temperature sensors is 2m, and at least two temperature sensors are embedded at the same position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921002157.2U CN210177444U (en) | 2019-06-28 | 2019-06-28 | Anti-ice-pulling system for concrete dam pattern hanging pipe in high and cold area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921002157.2U CN210177444U (en) | 2019-06-28 | 2019-06-28 | Anti-ice-pulling system for concrete dam pattern hanging pipe in high and cold area |
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| CN210177444U true CN210177444U (en) | 2020-03-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184988A (en) * | 2019-06-28 | 2019-08-30 | 中国水利水电科学研究院 | A kind of wounded pipe anti-ice of High-cold regions concrete dam pulls out system and method |
| CN110184988B (en) * | 2019-06-28 | 2024-05-10 | 中国水利水电科学研究院 | Anti-ice-pulling system and method for concrete dam flowtube in alpine region |
-
2019
- 2019-06-28 CN CN201921002157.2U patent/CN210177444U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184988A (en) * | 2019-06-28 | 2019-08-30 | 中国水利水电科学研究院 | A kind of wounded pipe anti-ice of High-cold regions concrete dam pulls out system and method |
| CN110184988B (en) * | 2019-06-28 | 2024-05-10 | 中国水利水电科学研究院 | Anti-ice-pulling system and method for concrete dam flowtube in alpine region |
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