CN112211166A - Self-adaptive anti-freezing device for gate and heating method - Google Patents
Self-adaptive anti-freezing device for gate and heating method Download PDFInfo
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- CN112211166A CN112211166A CN202011047301.1A CN202011047301A CN112211166A CN 112211166 A CN112211166 A CN 112211166A CN 202011047301 A CN202011047301 A CN 202011047301A CN 112211166 A CN112211166 A CN 112211166A
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- heating elements
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- gate
- heat conduction
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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
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
The invention discloses a self-adaptive anti-freezing device for a gate and a heating method, wherein the self-adaptive anti-freezing device comprises the gate, the gate is fixedly connected with a guide post, one side of the gate is provided with a heat conduction box, the heat conduction box is also fixedly connected with a floating box, and the floating box enables the heat conduction box to float on the water surface; an icing sensor is arranged in the heat conduction box and used for detecting the icing condition of the water surface; the heat conduction box is also internally provided with a group A of heating elements and a group B of heating elements, and the group A of heating elements and the group B of heating elements are used for heating water; the floating box is connected with the guide post in a sliding way, and the bottom end of the floating box is also fixedly connected with a temperature sensor; the group A heating elements, the group B heating elements, the temperature sensor and the icing sensor are connected with the controller. The invention realizes that the heat conduction box changes correspondingly along with the height of the water surface by the arranged buoyancy tank mechanism, and the heat conduction box with two groups of heating elements selects a corresponding heating mode according to different water surface conditions, thereby realizing the antifreezing of the gate.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a self-adaptive anti-freezing device for a gate and a heating method.
Background
At present, in high latitudes, alpine regions or places with icing periods, water conservancy facilities are always subjected to physical damage to the water conservancy facilities caused by low-temperature icing, and most commonly, the damage to a gate and a water conservancy main body is caused by the fact that an ice layer has a certain thickness when the gate is sealed and needs to be opened due to icing.
The existing gate heating device is basically characterized in that a heating module is added in the gate, so that the heating area is too many, the energy consumption is high, the maintenance is inconvenient, and particularly, when the temperature is sharply reduced, the icing phenomenon is easy to occur; or the ice is frozen, and when the brake needs to be opened, the ice is physically broken, so that the efficiency is low, the energy consumption is high, and meanwhile, the ice can cause a lot of potential safety hazards to water conservancy facilities; meanwhile, the height of the water surface is changed in different degrees due to the influence of icing or weather and other conditions, and the conventional heating device is difficult to adjust according to the actual condition of the water surface.
Disclosure of Invention
In order to solve the problems in the prior art, a self-adaptive anti-freezing device for a gate and a heating method are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a self-adaptive anti-freezing device for a gate, which comprises the gate, wherein the gate is fixedly connected with a guide column, one side of the gate is provided with a heat conduction box, the heat conduction box is also fixedly connected with a floating box, and the floating box enables the heat conduction box to float on the water surface; an icing sensor is arranged in the heat conduction box and used for detecting the icing condition of the water surface; the heat conduction box is also internally provided with a group A of heating elements and a group B of heating elements, and the group A of heating elements and the group B of heating elements are used for heating water; the floating box is connected with the guide column in a sliding manner, and the bottom end of the floating box is fixedly connected with a temperature sensor; the group A heating elements, the group B heating elements, the temperature sensor and the icing sensor are connected with a controller.
Preferably, the group a heating elements are PTC heating units, and the group B heating elements are high-power heating wire units.
Preferably, the gate is fixedly connected with a motor, the bottom end of the guide post is further connected with a lifting plate matched with the floating box in a sliding mode, the lifting plate is driven by the motor, and the motor is connected with the controller.
Preferably, the output shaft of the motor is fixedly connected with a lifting wheel, and a rope is wound on the lifting wheel; the head of the rope is fixedly connected with the lifting wheel, and the other end of the rope is fixedly connected with the lifting plate.
Preferably, the A, B two groups of heating elements are fixed in the heat-conducting box through heat-conducting silica gel; the heat conduction box is connected with a power supply through a transformer.
The invention also provides a heating method, which comprises the following steps:
s1, firstly, presetting the temperature threshold value in the controller as T0The controller controls the heat-conducting box, the temperature sensor and the icing sensor to start working;
s2, in the working state, the temperature sensor detects that the temperature of the water near the gate is T1And transmitting corresponding signals to the controller, comparing the signals with a threshold value after the controller receives the signals, and if T is detected1≥T0When the heat conduction box does not work;
if T1＜T0And when the icing sensor does not detect a corresponding signal, the controller controls the group A heating elements in the heat-conducting box to start working to gradually increase the water temperature until the numerical value T measured by the temperature sensor1＝T0When the device is in use, the device stops working;
if T1＜T0When the icing sensor detects that icing occurs, the controller transmits corresponding signals to control the group B heating elements in the heat conduction box to start working, and at the moment, the group A heating elements and the group B heating elements in the heat conduction box work simultaneously; after working for a period of time, the purpose of melting ice is finished, the icing sensor does not detect icing phenomenon, the icing sensor transmits corresponding signals to the controller, the controller controls the group B heating elements in the heat-conducting box to stop working, the working condition of the group A heating elements is continuously controlled by the controller, and the controller continues to control the heating elements according to the water temperature T measured by the temperature sensor at the moment2And T0Comparing;
if T2≥T0When it is, the group A heating elements stop working, if T2＜T0The controller controls the group A heating elements to continue working until the temperature is reachedValue T measured by sensor2＝T0And when the device stops working, the anti-freezing work of the gate is completed.
Preferably, when the water needs to be drained, the controller controls the motor to start working, the motor drives the lifting wheel to rotate, the rope is gradually wound on the lifting wheel and drives the lifting plate to ascend, the lifting plate drives the floating box to ascend, and then the heat conduction box is driven to ascend, so that the heat conduction box is prevented from influencing the water drainage work.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can adapt to the water surface height under different weather conditions and the like through the arranged buoyancy tank mechanism, so that the heat conduction tank can correspondingly change along with the difference of the water surface height, and the heating work is convenient to be carried out.
2. The invention can work according to different water surface conditions by arranging A, B two groups of heating element heat conduction boxes, when the temperature is below a preset value, the A group of heat conduction elements start to work, and when the icing sensor detects that the icing phenomenon is found, the B group of heat conduction elements start to work, thereby completing the anti-freezing work of the gate.
3. According to the invention, the lifting plate can drive the heat conduction box to move under the action of the motor through the arranged movable lifting plate mechanism, so that the heat conduction box is prevented from being damaged by crushed ice or water flow and the like when the brake is opened and water is discharged.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of the present invention (with the heat transfer case shown only in the right half for clarity of presentation);
FIG. 2 is a left side view of the present invention;
fig. 3 is a circuit control schematic of the present invention.
Description of reference numerals:
1, a gate; 2 a temperature sensor; 3, a buoyancy tank; 4 a guide post; 5, fixing a base;
6, a motor; 601 a lifting wheel; 7 a rope;
8, a heat conduction box; 801 heat-conducting silica gel body;
9 lifting the plate; 10 icing sensor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1-3, the present embodiment provides an adaptive freeze-proof device for a gate, including a gate 1, a plurality of fixing bases 5 fixedly connected to the gate 1, guide posts 4 fixedly connected between the fixing bases 5, two guide posts 4, and four fixing bases 5.
A heat conduction box 8 is arranged above the gate 1, the heat conduction box 8 is also fixedly connected with a floating box 3, and the floating box 3 enables the upper half part of the heat conduction box 8 to float on the water surface; the buoyancy tank 3 can adapt to the water surface height under the conditions of different weather and the like, so that the heat conduction tank 8 follows the height difference of the water surface to perform corresponding change, and the heating work is convenient to perform. Flotation tank 3 and guide post 4 sliding connection, guide post 4 play direction and spacing effect, and flotation tank 3 bottom is fixedly connected with temperature sensor 2 still.
The temperature sensor 2 is connected with the controller, and the temperature sensor 2 is used for measuring the temperature of the water and transmitting corresponding signals to the controller for processing. The temperature sensor 2 is made of a contact type low temperature resistant thermistor or thermocouple material, so that the temperature sensor 2 can normally work in a corresponding environment.
An icing sensor 10 is arranged in the heat conduction box 8, and the heat conduction box 8 is contacted with the water surface under the action of the buoyancy tank 3; a, B two groups of heating elements are further arranged in the heat conduction box 8, the proportion occupied by A, B two groups of heating elements is matched with the water surface condition, and A, B two groups of heating elements are used for heating water; conventionally, the ratio of group A to group B is 4:1, and the ratio can be adjusted according to different use environments.
The group A heating elements are PTC heating units, and the group B heating elements are high-power heating wire units; the group A adopts a PTC heating element consisting of a low-voltage PTC ceramic heating element and an aluminum pipe, and the group B adopts a high-power quick heating element electric heating wire and dry burning prevention protection. The group A is mainly used for heating water under daily conditions to prevent water from freezing, and the group B is used for deicing when freezing occurs.
The icing sensor 10 and the group A heating elements are connected with a controller, and the controller is also connected with the group B heating elements through a switch. When the icing sensor 10 detects that the icing phenomenon is found, a corresponding signal is transmitted to the controller, and the controller controls the switch to be turned on, so that the group B heating elements are controlled to start working. The temperature sensor 2 transmits corresponding signals to the controller after detecting the temperature of the water, and the controller controls the group A heating elements to start working when the temperature of the water is lower than the preset temperature of the controller.
A. The two groups B of heating elements are fixed in the heat conduction box 8 through heat conduction silica gel 801; the heat conduction box 8 is connected with a power supply through a transformer, the arranged transformer is used for realizing, the device can normally run under different environmental conditions, and the heat output by the A, B two groups of heating elements can be adjusted conveniently according to actual conditions.
Since the formation of ice from water is a phase change process of water, water emits a large amount of heat energy during the process. 1 kg of water is converted into ice at the same temperature, 79.6 kilocalories of heat energy is released, and 1 kg of ice is converted into water at the same temperature, and 79.6 kilocalories of heat energy is absorbed; 1 kilocalorie of water can only release 1 kilocalorie of heat energy when the temperature drops by 1 degree, and 1 kilocalorie of water can only absorb 1 kilocalorie of heat energy when the temperature rises by 1 degree. The difference between the two is approximately 80 times.
This physical law reminds us of: to dissolve the water after it has frozen, more energy is used, and technical measures are preferably taken to prevent the water from freezing. In addition, in order to prevent the gate 1 from freezing, heating is only required in a small area of water near the gate 1.
The water surface is a main interface for heat exchange between the strong cold air and the water body, the A group of heating elements are arranged at the position close to the gate 1, the temperature of the water body in the area near the gate 1 is slightly higher than zero ℃, the phase change heat exchange of the water body in the area is effectively prevented, the water body in a small range is properly heated, the consumed energy source is limited to an extremely low reasonable level, and the problems of high energy consumption and the like do not need to be considered. Only when the temperature is sharply reduced and the icing phenomenon occurs, the group B heating elements start to work under the action of the icing sensor 10 to melt ice; under normal conditions, when the measured water temperature is lower than the preset temperature of the controller, the controller controls the group A heating elements to work.
Example two
Referring to fig. 1, the other structure is the same as the first embodiment, except that in the present embodiment, it is considered that the operation of the heat conducting box 8 is affected by the crushed ice or water flow and the like which may exist when the water is discharged by opening the gate; the whole device is also provided with a lifting plate 9 matched with the buoyancy tank 3.
The lifting plate 9 is connected to the guide post 4 in a sliding mode, the lifting plate 9 is arranged below the floating box 3, the lifting plate 9 is driven by the motor 6, and the motor 6 is connected with the controller.
A motor 6 is fixedly connected above the gate 1, an output shaft of the motor 6 is fixedly connected with a lifting wheel 601, and a rope 7 is wound on the lifting wheel 601; the rope head part of the rope 7 is fixedly connected with the lifting wheel 601, and the other end of the rope 7 is fixedly connected with the lifting plate 9. Motor 6 drive lifting wheel 601 rotates, and then makes rope 7 twine on lifting wheel 601, and rope 7 drives and carries the arm-tie 9 and rise, carries arm-tie 9 and drives flotation tank 3 and rise to reasonable position, prevents that heat conduction box 8 height from crossing lowly to influence the going on of the work of draining of switching off.
The invention also provides a heating method, and the self-adaptive anti-freezing device for the gate, which is adopted by the embodiment II, comprises the following steps:
s1, firstly, presetting the temperature threshold value in the controller as T0The controller controls the heat conduction box 8, the temperature sensor 2 and the icing sensor 10 to start working;
s2, in the working state, the temperature sensor 2 detects that the temperature of the water near the gate 1 is T1And transmitting corresponding signals to the controller, comparing the signals with a threshold value after the controller receives the signals, and if T is detected1≥T0When the temperature is higher than the set temperature, the heat conduction box 8 does not work;
if T1＜T0And when the icing sensor 10 does not detect a corresponding signal, the controller controls the group A heating elements in the heat conducting box 8 to start working, so that the water temperature is gradually increased until the numerical value T measured by the temperature sensor 21＝T0When the device is in use, the device stops working;
if T1＜T0When the icing sensor 10 detects that icing occurs, corresponding signals are transmitted to the controller, the controller controls the group B heating elements in the heat conduction box 8 to start working, and at the moment, the group A heating elements and the group B heating elements in the heat conduction box 8 work simultaneously; after working for a period of time, the purpose of melting ice is completed, the icing sensor 10 does not detect icing phenomenon, the icing sensor 10 transmits corresponding signals to the controller, the controller controls the group B heating elements in the heat conduction box 8 to stop working, the working conditions of the group A heating elements are continuously controlled by the controller, and the controller controls the water temperature T measured by the temperature sensor 2 according to the water temperature T at the moment2And T0Comparing;
if T2≥T0When it is, the group A heating elements stop working, if T2＜T0The controller controls the group A heating elements to continue working until the value T measured by the temperature sensor 22＝T0And when the device stops working, the anti-freezing work of the gate is completed.
In addition, when the water needs to be discharged by opening the gate, the controller controls the motor 6 to start working, the motor 6 drives the lifting wheel 601 to rotate, the rope 7 is gradually wound on the lifting wheel 601, the rope 7 drives the lifting plate 9 to ascend, the lifting plate 9 drives the floating box 3 to ascend, and then the heat conduction box 8 is driven to ascend, so that the heat conduction box 8 is prevented from influencing the water discharging operation.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A self-adaptive anti-freezing device for a gate comprises the gate (1), wherein a guide column (4) is fixedly connected to the gate (1), and the self-adaptive anti-freezing device is characterized in that a heat conduction box (8) is arranged on one side of the gate (1), the heat conduction box (8) is also fixedly connected with a buoyancy tank (3), and the buoyancy tank (3) enables the heat conduction box (8) to float on the water surface; an icing sensor (10) is arranged in the heat conduction box (8), and the icing sensor (10) is used for detecting the icing condition of the water surface; the heat conduction box (8) is also internally provided with a group A of heating elements and a group B of heating elements, and the group A of heating elements and the group B of heating elements are used for heating water; the floating box (3) is connected with the guide column (4) in a sliding manner, and the bottom end of the floating box (3) is also fixedly connected with a temperature sensor (2); the group A heating elements, the group B heating elements, the temperature sensor (2) and the icing sensor (10) are connected with a controller.
2. The adaptive antifreeze apparatus for a gate of claim 1, wherein said group a heating elements are PTC heating units and said group B heating elements are high power heating wire units.
3. The adaptive anti-freezing device for the gate is characterized in that a motor (6) is fixedly connected to the gate (1), a lifting plate (9) matched with the buoyancy tank (3) is further connected to the bottom end of the guide column (4) in a sliding mode, the lifting plate (9) is driven by the motor (6), and the motor (6) is connected with a controller.
4. The adaptive anti-freezing device for the gate is characterized in that a lifting wheel (601) is fixedly connected to an output shaft of the motor (6), and a rope (7) is wound on the lifting wheel (601); the rope head part of the rope (7) is fixedly connected with the lifting wheel (601), and the other end of the rope (7) is fixedly connected with the pulling plate (9).
5. The adaptive antifreeze apparatus for gate of claim 1, wherein said A, B two groups of heating elements are fixed in said heat conductive box (8) by heat conductive silicone body (801); the heat conduction box (8) is connected with a power supply through a transformer.
6. A heating method, characterized in that the adaptive antifreeze apparatus for a gate of any one of claims 1 to 4 is used, comprising the steps of:
s1, firstly, presetting the temperature threshold value in the controller as T0The controller controls the heat conduction box (8), the temperature sensor (2) and the icing sensor (10) to start working;
s2, in the working state, the temperature sensor (2) detects that the temperature of the water near the gate (1) is T1And transmitting corresponding signals to the controller, comparing the signals with a threshold value after the controller receives the signals, and if T is detected1≥T0When the heat conduction box (8) does not work;
if T1＜T0And when the icing sensor (10) does not detect a corresponding signal, the controller controls the group A heating elements in the heat-conducting box (8) to start working, so that the water temperature is gradually increased until the numerical value T measured by the temperature sensor (2)1＝T0When the device is in use, the device stops working;
if T1＜T0When the icing sensor (10) detects that icing occurs, corresponding signals are transmitted to the controller, the controller controls the group B heating elements in the heat conducting box (8) to start working, and at the moment, the group A heating elements and the group B heating elements in the heat conducting box (8) work simultaneously; after the ice melting device works for a period of time, the purpose of ice melting is finished, the icing sensor (10) does not detect icing phenomenon, the icing sensor (10) transmits corresponding signals to the controller, the controller controls the group B heating elements in the heat conducting box (8) to stop working, the working conditions of the group A heating elements are continuously controlled by the controller, and the controller controls the water temperature T measured by the temperature sensor (2) according to the working conditions2And T0Comparing;
if T2≥T0When it is, the group A heating elements stop working, if T2＜T0The controller controls the group A heating elements to continue working until the value T measured by the temperature sensor (2)2＝T0At the same time, the device stops workingThereby completing the anti-freezing work of the gate.
7. A heating method according to claim 6, characterized in that when the water needs to be drained, the controller controls the motor (6) to start working, the motor (6) drives the lifting wheel (601) to rotate, so that the rope (7) is gradually wound on the lifting wheel (601), the rope (7) drives the lifting plate (9) to ascend, the lifting plate (9) drives the buoyancy tank (3) to ascend, and further drives the heat conduction tank (8) to ascend, and the heat conduction tank (8) is prevented from influencing the water drainage work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047301.1A CN112211166A (en) | 2020-09-29 | 2020-09-29 | Self-adaptive anti-freezing device for gate and heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047301.1A CN112211166A (en) | 2020-09-29 | 2020-09-29 | Self-adaptive anti-freezing device for gate and heating method |
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| Publication Number | Publication Date |
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| CN112211166A true CN112211166A (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011047301.1A Withdrawn CN112211166A (en) | 2020-09-29 | 2020-09-29 | Self-adaptive anti-freezing device for gate and heating method |
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| CN (1) | CN112211166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165922A (en) * | 2021-10-29 | 2022-03-11 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
| CN118166723A (en) * | 2024-05-15 | 2024-06-11 | 安徽省康宇水电机械成套设备有限公司 | Energy-saving antifreezing gate |
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| JPS56133610A (en) * | 1980-03-24 | 1981-10-19 | Mitsubishi Electric Corp | Preventing device for water-surface freezing |
| CN204282312U (en) * | 2014-11-21 | 2015-04-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Floating gate anti-icing device |
| CN104846792A (en) * | 2015-05-26 | 2015-08-19 | 武汉静磁栅机电制造有限公司 | Defroster for gate slot of water conservancy and hydropower gate |
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| CN107794889A (en) * | 2017-10-30 | 2018-03-13 | 祝敏 | The sustainable water gate used in a kind of water conservancy dam |
| CN207846352U (en) * | 2018-02-01 | 2018-09-11 | 无锡职业技术学院 | A kind of water conservancy and hydropower gate recess defroster |
| CN110106824A (en) * | 2019-04-25 | 2019-08-09 | 内蒙古自治区水利水电勘测设计院 | A kind of automatic inflating floating body gas shield dam anti-freezing for gate device |
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| JPS56133610A (en) * | 1980-03-24 | 1981-10-19 | Mitsubishi Electric Corp | Preventing device for water-surface freezing |
| CN204282312U (en) * | 2014-11-21 | 2015-04-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Floating gate anti-icing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165922A (en) * | 2021-10-29 | 2022-03-11 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
| CN114165922B (en) * | 2021-10-29 | 2023-03-14 | 华能辽宁清洁能源有限责任公司 | Heat flow circulating system for preventing ice layer of gate of hydropower station from being frozen |
| CN118166723A (en) * | 2024-05-15 | 2024-06-11 | 安徽省康宇水电机械成套设备有限公司 | Energy-saving antifreezing gate |
| CN118166723B (en) * | 2024-05-15 | 2024-07-09 | 安徽省康宇水电机械成套设备有限公司 | Energy-saving antifreezing gate |
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Application publication date: 20210112 |