CN109610401B - Water conservancy water and electricity gate upstream face anti-freezing device - Google Patents
Water conservancy water and electricity gate upstream face anti-freezing device Download PDFInfo
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- CN109610401B CN109610401B CN201811548811.XA CN201811548811A CN109610401B CN 109610401 B CN109610401 B CN 109610401B CN 201811548811 A CN201811548811 A CN 201811548811A CN 109610401 B CN109610401 B CN 109610401B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/003—Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
The invention discloses an anti-freezing device for the upstream surface of a water conservancy and hydropower gate, which comprises an electric heating layer arranged on the upstream surface of the water conservancy and hydropower gate, wherein the electric heating layer is divided into a plurality of sub electric heating layers capable of independently heating and melting ice on the upstream surface, each sub electric heating layer is respectively provided with a pressure sensor, and meanwhile, a water suction pipe is respectively distributed on each sub electric heating layer; the draining pump, the sub electric heating layers and the microprocessor are also respectively connected with a power supply. According to the invention, by repeatedly melting ice and discharging the melted water under the set conditions, a stable gap is finally formed between the gate and the ice layer, so that the gate is not subjected to extrusion force of the ice layer in severe cold winter, and power-consumption ice melting is not repeatedly performed after the gap is formed.
Description
Technical Field
The invention relates to the field of water conservancy and hydropower facilities, in particular to an anti-freezing device for an upstream surface of a water conservancy and hydropower gate.
Background
The water conservancy and hydropower gate plays a role in blocking reservoir water and discharging reservoir water at a fixed flow rate, most gates are still static in the freezing period of northern cold winter, and thick ice layers can be formed on the upstream surface of the gate. The ice is one of three states of water, after the ice is formed by the water, the specific gravity is reduced, the volume is increased, the initial estimation is carried out, and the ice layer formed by a steel gate with the width of 10 meters on the upstream face under the condition that the air temperature is minus 20 ℃ can cause the upstream face of the gate to bear hundreds of tons of ice expansion pressure, which is extremely destructive static pressure, so the anti-freezing technical measure of the upstream face of the gate is indispensable. At present, an important antifreezing method is to arrange an electric heating body on the upstream surface of the gate so as to melt the ice layer on the upstream surface of the gate, thereby releasing or relieving the huge pressure of the ice layer on the gate. However, in the current method for melting ice by electric heating in the prior art, the electric heating element must be continuously heated in cold weather, so that the upstream surface contacting with the gate is kept from freezing, if the heating is stopped, a new ice layer is formed between the ice layer and the gate quickly under the action of water and ice heat conduction and low environmental temperature, and because the heating must be continuously carried out in low temperature environment to prevent freezing, a large amount of electric energy is consumed, which is not beneficial to energy conservation.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides an anti-freezing device for the upstream surface of a water conservancy and hydropower gate, which can automatically detect whether each part on the upstream surface of the water conservancy and hydropower gate is subjected to pressure caused by icing or not, can automatically heat and melt ice at the same time, and automatically removes water generated by melting ice; by repeatedly melting ice and removing the melted water under the set conditions, a stable gap is finally formed between the gate and the ice layer, so that the gate is not stressed by the extrusion force of the ice layer in severe cold winter, and the power-consumption ice melting is not repeatedly performed after the gap is formed.
The technical scheme of the invention is as follows: the water conservancy water and electricity gate upstream face anti-freezing device comprises an electric heating layer arranged on the upstream face of the water conservancy water and electricity gate, wherein the electric heating layer is divided into a plurality of sub electric heating layers capable of independently heating and melting ice on the upstream face, the upstream face of each sub electric heating layer is respectively provided with a pressure sensor, the position of each sub electric heating layer is also respectively provided with a water suction pipe, each water suction pipe is provided with an electromagnetic valve and is respectively connected with a water discharge pipe, the water discharge pipe is connected with a water discharge pump, each sub electric heating layer is respectively in signal connection with a microprocessor through an electric heating switch, and the microprocessor is respectively in signal connection with each electromagnetic valve, each pressure sensor and the water discharge pump; the drainage pump, each sub electric heating layer and the microprocessor are also electrically connected with a power supply respectively; the pressure sensor is used for detecting the pressure value from the ice layer or the water layer on the upstream surface of the sub electric heating layer where the pressure sensor is located and sending the detected pressure value to the microprocessor in real time; the microprocessor is used for receiving the pressure value sent by the pressure sensor in real time, comparing the pressure value with a first pressure setting value corresponding to the pressure sensor, when the pressure value is higher than the first pressure setting value, defaulting that a water body in contact with a sub-electric heating layer where the pressure sensor is located is frozen to generate expansion extrusion force, controlling the sub-electric heating layer to generate heat through an electric heating switch by the microprocessor so as to melt the ice surface of the ice layer in contact with the sub-electric heating layer until the pressure value is lower than a second pressure setting value and higher than a third pressure setting value, defaulting that the ice surface in contact with the sub-electric heating layer where the pressure sensor is located is melted into water, controlling an electromagnetic valve on a water suction pipe on the same sub-electric heating layer as the pressure sensor to be in an open state by the microprocessor, and controlling the drainage pump to be in a water discharge state at the same time, and when the pressure value is lower than the third pressure set value, the water body contacting with the sub-electric heating layer where the pressure sensor is located is eliminated by default, the microprocessor controls the sub-electric heating layer to be closed and generate heat through the electric heating switch, meanwhile, the electromagnetic valves on the corresponding water suction pipes are controlled to be in a closed state, and when all the electromagnetic valves are in the closed state, the microprocessor controls the drainage pump to be in the closed state.
The outer wall of the drainage pipe is coated with an electric heating coating layer for preventing the interior of the drainage pipe from freezing, and the electric heating coating layer is connected with a power supply through a power supply switch.
The first pressure setting value is in a pressure range applied when the corresponding sub electric heating layer is subjected to water icing; the second pressure setting value is equal to the pressure value applied by the water body to the corresponding sub-electric heating layer when the water body is not frozen; the third pressure setting is set to zero or less than one third of the second pressure setting.
The sub-electric heating layers adopt PTC heating elements to generate heat.
The water discharge pipe is arranged between the electric heating layer and the water conservancy and hydropower gate.
The microprocessor PLC controller or MSP430 single chip microcomputer; the electric heating switch is a relay switch.
The invention provides an anti-freezing device for the upstream surface of a water conservancy and hydropower gate, which can automatically detect whether each part on the upstream surface of the water conservancy and hydropower gate is subjected to pressure caused by freezing, can automatically heat and melt ice at the same time, and automatically removes water generated by melting ice; by the invention, the surface of the ice layer 9, which is in contact with the electric heating layer 2, continuously generates heat and removes water melted due to the heat, a stable gap 8 is gradually formed between the upstream surface of the water conservancy and hydropower gate 1 and the ice layer 9, so that the pressure between the ice layer 9 and the water conservancy and hydropower gate 1 is obviously reduced or even disappears, and meanwhile, ice melting electric energy does not need to be supplied, and the whole water conservancy and hydropower gate 1 can be in contact with the water body 10 again after ice and snow melt in the next year. According to the invention, by repeatedly melting ice and discharging the melted water under the set conditions, a stable gap 8 is finally formed between the gate and the ice layer, so that the gate is not stressed by extrusion force of the ice layer in severe cold winter, and power consumption ice melting is not repeatedly performed after the gap is formed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a block diagram of the electrical system connection of the present invention.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
Referring to the figures 1 and 2, the invention provides an anti-freezing device for the upstream surface of a water conservancy and hydropower gate, which comprises an electric heating layer 2 arranged on the upstream surface of the water conservancy and hydropower gate 1, wherein the electric heating layer 2 is divided into a plurality of sub electric heating layers 2-1 capable of independently heating and melting ice on the upstream surface, a pressure sensor 6 is respectively arranged on the upstream surface of each sub electric heating layer 2-1, a water suction pipe 7 is respectively arranged at the position of each sub electric heating layer 2-1, an electromagnetic valve 4 is arranged on each water suction pipe 7, each water suction pipe 7 is also respectively connected with a water discharge pipe 3, the water discharge pipe 3 is connected with a drainage pump 5, each sub electric heating layer 2-1 is respectively in signal connection with a microprocessor 12 through an electric heating switch 11, and the microprocessor is also respectively in signal connection with each electromagnetic valve 4, each pressure sensor 6 and the drainage pump 5; the drainage pump 5, each sub electric heating layer 2-1 and the microprocessor are also respectively connected with a power supply; the pressure sensor 6 is used for detecting the pressure value from the ice layer 9 or the water layer 10 on the upstream surface of the sub electric heating layer 2-1 where the pressure sensor is located and sending the detected pressure value to the microprocessor in real time; the microprocessor is used for receiving the pressure value sent by the pressure sensor 6 in real time, comparing the pressure value with a first pressure setting value corresponding to the pressure sensor 6, when the pressure value is higher than the first pressure setting value, defaulting that the water body in contact with the sub-electric heating layer 2-1 where the pressure sensor 6 is located is frozen to generate expansion extrusion force, controlling the sub-electric heating layer 2-1 to generate heat through an electric heating switch by the microprocessor to melt the ice surface of the ice layer 9 in contact with the sub-electric heating layer 2-1 until the pressure value is lower than a second pressure setting value and higher than a third pressure setting value, defaulting that the ice surface in contact with the sub-electric heating layer 2-1 where the pressure sensor 6 is located is melted into water, and controlling the electromagnetic valve 4 on the water suction pipe 7 on the same sub-electric heating layer 2-1 as the pressure sensor 6 to be in an open state by the microprocessor, meanwhile, the microprocessor controls the drainage pump 5 to be in a drainage opening state, when the pressure value is lower than the third pressure set value, the default is that the water body in contact with the sub electric heating layer 2-1 where the pressure sensor 6 is located is removed, the microprocessor controls the sub electric heating layer 2-1 to be closed and generate heat through an electric heating switch, meanwhile, the microprocessor controls the electromagnetic valves 4 on the corresponding water suction pipes 7 to be in a closing state, and when all the electromagnetic valves 4 are in the closing state, the microprocessor controls the drainage pump 5 to be in the closing state. Because the ice layer 9 is more and more frozen and firmer under the condition that the temperature of the external environment is lower and lower, the invention ensures that the surface of the ice layer 9 contacted with the electric heating layer 2 continuously generates heat and removes water melted due to the heat, and a stable gap 8 is gradually formed between the upstream surface of the water conservancy and hydropower gate 1 and the ice layer 9, so that the pressure between the ice layer 9 and the water conservancy and hydropower gate 1 is eliminated, and meanwhile, the ice-melting electric energy does not need to be supplied, and the whole water conservancy and hydropower gate 1 can be contacted with the water body 10 again after the ice and snow melt in the coming year.
Further, an electric heating coating layer for preventing the interior of the drain pipe 3 from being frozen is coated on the outer wall of the drain pipe 3, and the electric heating coating layer is electrically connected with a power supply through a power supply switch.
Further, the first pressure setting value is in a pressure range applied when the corresponding sub-electrothermal layer 2-1 is subjected to water icing; the second pressure setting value is equal to the pressure value applied by the water body to the corresponding sub-electric heating layer 2-1 when the water body is not frozen; the third pressure setting is set to zero or less than one third of the second pressure setting.
Furthermore, each sub-electric heating layer 2-1 adopts a PTC heating element to generate heat.
Further, the drain pipe 3 is arranged between the electric heating layer 2 and the water conservancy and hydropower gate 1.
Further, the microprocessor PLC controller or MSP430 single chip microcomputer; the electric heating switch is a relay switch.
In conclusion, the anti-freezing device for the upstream surface of the water conservancy and hydropower gate, provided by the invention, can automatically detect whether each part on the upstream surface of the water conservancy and hydropower gate is subjected to pressure caused by freezing, can automatically heat and melt ice at the same time, and automatically removes water generated by melting ice; the invention can lead the ice layer 9 to continuously generate heat on the surface contacted with the electric heating layer 2 and remove the water melted by the heat, and a stable gap 8 can be gradually formed between the upstream surface of the water conservancy and hydropower gate 1 and the ice layer 9, thus leading the pressure between the ice layer 9 and the water conservancy and hydropower gate 1 to be obviously reduced or even disappear, simultaneously, the ice-melting electric energy does not need to be supplied, and the whole water conservancy and hydropower gate 1 can be contacted with the water body 10 again after the ice and snow melt in the next year. According to the invention, by repeatedly melting ice and discharging the melted water under the set conditions, a stable gap 8 is finally formed between the gate and the ice layer, so that the gate is not stressed by the extrusion force of the ice layer in severe cold winter, and the power-consumption ice melting is not repeatedly performed after the gap is formed.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (5)
1. Water conservancy water and electricity gate upstream face anti-freezing device, including locating electric heat layer (2) on the upstream face of water conservancy water and electricity gate (1), its characterized in that, electric heat layer (2) are divided into a plurality of sub-electric heat layer (2-1) that can independently generate heat the ice-melt on the upstream face, are provided with pressure sensor (6) respectively on the upstream face of each sub-electric heat layer (2-1), and respectively the position of each sub-electric heat layer (2-1) has still laid respectively and has absorbed water pipe (7) simultaneously, all is equipped with solenoid valve (4) on each absorbed water pipe (7), and each absorbed water pipe (7) still is connected with drain pipe (3) respectively, and drain pipe (3) are connected with drain pump (5), each sub-electric heat layer (2-1) is through an electric heat switch (11) and microprocessor (12) signal connection respectively, and microprocessor still respectively with each solenoid valve (4), The pressure sensors (6) are in signal connection with the drainage pump (5); the drainage pump (5), each sub electric heating layer (2-1) and the microprocessor are also respectively electrically connected with a power supply;
the pressure sensor (6) is used for detecting the pressure value from the ice layer (9) or the water layer (10) on the upstream surface of the sub electric heating layer (2-1) where the pressure sensor is located and sending the detected pressure value to the microprocessor in real time; the microprocessor is used for receiving the pressure value sent by the pressure sensor (6) in real time, comparing the pressure value with a first pressure setting value corresponding to the pressure sensor (6), when the pressure value is higher than the first pressure setting value, defaulting the water body in contact with the sub-electric heating layer (2-1) where the pressure sensor (6) is located to generate expansion extrusion force, controlling the sub-electric heating layer (2-1) to generate heat through an electric heating switch by the microprocessor to melt the ice surface of the ice layer (9) in contact with the sub-electric heating layer (2-1) until the pressure value is lower than a second pressure setting value and higher than a third pressure setting value, defaulting the ice surface in contact with the sub-electric heating layer (2-1) where the pressure sensor (6) is located to melt into water, and controlling the water suction pipe (2-1) on the same sub-electric heating layer (2-1) with the pressure sensor (6) to be located by the microprocessor 7) The electromagnetic valves (4) are in an open state, the microprocessor controls the drainage pump (5) to be in a state of opening drainage, until the pressure value is lower than the third pressure set value, the default water body contacting with the sub-electric heating layer (2-1) where the pressure sensor (6) is located is removed, the microprocessor controls the sub-electric heating layer (2-1) to be closed and generate heat through the electric heating switch, meanwhile, the electromagnetic valves (4) on the corresponding water suction pipes (7) are controlled to be in a closed state, and when all the electromagnetic valves (4) are in the closed state, the microprocessor controls the drainage pump (5) to be in the closed state.
2. The water conservancy and hydropower gate upstream face anti-freezing device according to claim 1, wherein the outer wall of the drain pipe (3) is coated with an electric heating coating layer for preventing the interior of the drain pipe (3) from being frozen, and the electric heating coating layer is electrically connected with a power supply through a power supply switch.
3. The water conservancy and hydropower gate upstream face anti-freezing device according to claim 1, wherein each sub-electric heating layer (2-1) adopts a PTC heating element for heating.
4. The water conservancy and hydropower gate upstream face anti-freezing device of claim 1, wherein the drain pipe (3) is provided between the electrically heated layer (2) and the water conservancy and hydropower gate (1).
5. The water conservancy and hydropower gate upstream face anti-freezing device of claim 1, wherein the microprocessor is a PLC controller or an MSP430 singlechip; the electric heating switch is a relay switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548811.XA CN109610401B (en) | 2018-12-18 | 2018-12-18 | Water conservancy water and electricity gate upstream face anti-freezing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548811.XA CN109610401B (en) | 2018-12-18 | 2018-12-18 | Water conservancy water and electricity gate upstream face anti-freezing device |
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| Publication Number | Publication Date |
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| CN109610401A CN109610401A (en) | 2019-04-12 |
| CN109610401B true CN109610401B (en) | 2020-09-15 |
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| CN201811548811.XA Active CN109610401B (en) | 2018-12-18 | 2018-12-18 | Water conservancy water and electricity gate upstream face anti-freezing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110924362B (en) * | 2019-11-21 | 2021-06-08 | 华北水利水电大学 | Be applied to energy-efficient anti-icing gate of channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4379825B2 (en) * | 2008-04-15 | 2009-12-09 | 日本工営株式会社 | Sluice freezing prevention device with induction heating steel pipe |
| CN104846795A (en) * | 2015-05-26 | 2015-08-19 | 武汉静磁栅机电制造有限公司 | Anti-freezing device for water attaining surface of water conservancy and hydropower gate |
| CN206337540U (en) * | 2016-12-03 | 2017-07-18 | 郑州大学 | A kind of water conservancy and hydropower gate upstream face anti-freezing device |
| CN206368345U (en) * | 2017-01-04 | 2017-08-01 | 武汉迈克斯热能技术有限公司 | A kind of good gate of deicing effect |
| CN206941522U (en) * | 2017-07-10 | 2018-01-30 | 扬州市飞龙气动液压设备有限公司 | Steel dam anchor gate anti-freezing device |
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Effective date of registration: 20230403 Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: Yucai Road 725000 health city of Shaanxi province Hanbin District No. 92 Patentee before: ANKANG University Effective date of registration: 20230403 Address after: 472000 No. 1, Middle Section of Jianshe Road, Sanmenxia City, Henan Province Patentee after: Sanmenxia Xinhua Hydraulic Machinery Co.,Ltd. Address before: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee before: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |