CN107338787A - A kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula - Google Patents
A kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula Download PDFInfo
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- CN107338787A CN107338787A CN201710792332.1A CN201710792332A CN107338787A CN 107338787 A CN107338787 A CN 107338787A CN 201710792332 A CN201710792332 A CN 201710792332A CN 107338787 A CN107338787 A CN 107338787A
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- temperature
- soil
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- control
- electrical blanket
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to a kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula, including electrical blanket（1）, temperature sensor（2）, temperature detect switch (TDS)（3）, be located at electrical blanket（1）The electronic roller of end（5）And it is symmetrically arranged at electronic roller（5）The spoke wheel at both ends（6）, spoke wheel（6）The direction switch of its direction of traffic can be adjusted by being provided with（7）；Wherein, electrical blanket（1）With insulation, waterproof, heat-proof quality, it is used to be covered in soil body surface and the soil body heated, temperature sensor（2）For measuring soil temperature, temperature detect switch (TDS)（3）Electrical blanket is controlled according to soil temperature（1）It is turned on and off and then controls the soil body to maintain preset temperature value.Prevention and control system of the present invention integrates the function such as heating, temperature control, waterproof, water conservation, heat-insulated, it is automatic deploying and retracting, time saving and energy saving, it can make the temperature of institute's overburden soil surface layer be rapidly heated simultaneously, and and can carries out Automated condtrol to the temperature of heating, and the efficiency for freezing prevention and control significantly improves.
Description
Technical field
The present invention relates to the temperature control freezing soil prevention and control of the device for preventing freezing soil, more particularly to a kind of automatic deploying and retracting formula
System.
Background technology
In China the north, western mountainous areas and Plateau Cold Area, seasonal frozen ground and ever-frozen ground are widely distributed, and area accounts for China
The 70% of the land gross area.In recent years, actively push forward with development of the West Regions, around relevant cold such as the energy, traffic, water conservancy
Area's Important Project is just progressively implemented in western mountainous areas and Plateau Cold Area.In these engineering construction processs of construction, inevitably
Frozen soil problems can be run into.
Will because frozen soil will cause its many soil strength variation to change in frozen-thaw process, such as after loose soil body freeze thawing
Cause its compactness increase, water penetration reduce etc. characteristic, and be compacted after the soil body will cause after freeze thawing undergo compactness decline,
The characteristics such as water penetration rise, and soil body particle produces sorting in frozen-thaw process, and its shearing strength, bearing capacity etc. are produced
Life significantly affects, so as to bring serious threat to the stability of cold regions engineering structures and security operation.Therefore, bear in the winter time
Under warm environment in project implementing process, either foundation engineering, dam body engineering etc. are required to used earth material and engineering construction
The scope of operation is forbidden to freeze.
But at present job site earth material and operation side freeze prevention and control measure mostly using artificial covering cotton-wadded quilt,
The methods of straw screen or mat, geotextiles, and job site is all often a large amount of earth materials and the large-area construction scope of operation, it is necessary to which it is extensive to carry out
Large-scale prevention and control, above-mentioned prevention and control measure need to expend substantial amounts of manpower and materials, and operating efficiency is low.Meanwhile above-mentioned prevention and control measure
Prevention and control main body can not be heated, control effect is poor, cannot ensure that freeze prevention and control main body does not freeze really.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula, both
Automatic deploying and retracting can be realized, it is time saving and energy saving, operating efficiency is improved, after and can ensures engineering construction operation without material input, densification is frozen
Ground or storehouse face are not freezed.Wherein, " soil body " in the application refers to earth material, operation side etc. and freezes prevention and control main body.
To solve the above problems, a kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula of the present invention, it is special
Sign is：The system includes electrical blanket, temperature sensor, temperature detect switch (TDS), the electronic roller for being located at the electrical blanket end and symmetrical
The spoke wheel at the electronic roller both ends is located at, the spoke wheel is provided with the direction switch that can adjust its direction of traffic；
Wherein, the electrical blanket has insulation, waterproof, heat-proof quality, and it is used to be covered in soil body surface and the soil body is heated,
The temperature sensor is used to measure soil temperature, and the temperature detect switch (TDS) is used to control the electrical blanket to open according to the soil temperature
Open or close and then control the soil body to maintain preset temperature value.
Preferably, it is wired connection or wireless connection between the temperature sensor and the temperature detect switch (TDS).
Preferably, the electrical blanket is multi-layer fiber and the composite construction of film interaction superposition, is uniformly spread in the composite construction
Provided with ribbon heater.
Preferably, the ribbon heater is parallel is distributed between fibrous layer and film layer, direction and the width side of the electrical blanket
To consistent.
Preferably, the temperature detect switch (TDS) is located at provides on the cable of electric energy for the ribbon heater, and it is internal with control institute
State cable connection or the switch block disconnected.
Preferably, the fiber is polyester fiber, and the film is polyethylene film.
The present invention has advantages below compared with prior art：
1st, automatic deploying and retracting, time saving and energy saving：The present invention has the electronic roller for being located at electrical blanket end and is symmetrically arranged at the electromotive roller
The spoke wheel at cylinder both ends, even freezes prevention and control main body on a large scale in face of a large amount of earth materials or the large-area construction scope of operation etc., uses
When only need one-key start electric roller that automatic covering to electrical blanket and automatic recovery can be achieved, implement very convenient quick, section
Substantial amounts of manpower and materials are saved, operating efficiency is high.
2nd, programming rate is fast, the efficiency of heating surface is high：Electrical blanket in the present invention directly converts electrical energy into heat energy and is close to the soil body
Surface is heated, and heat transfer type belongs to heat transfer, and heat energy is fully utilized, and the efficiency of heating surface significantly improves；Meanwhile electricity
Insulation, waterproof and the heat-proof quality of blanket enable electrical blanket that heat is substantially retained at into electrical blanket bottom, avoid the invalid of heat
Scatter and disappear, not only resisted the refrigeration of extraneous low temperature environment but also protected the efficient utilization of heat energy, therefore institute's overburden soil surface layer
Temperature can be raised quickly in a short time, and the efficiency for freezing prevention and control significantly improves.
3rd, automatic temperature-controlled, good freezing protection effect：Temperature sensor and temperature detect switch (TDS) are provided with the present invention, temperature detect switch (TDS) being capable of root
According to being turned on and off for the soil temperature control electrical blanket from temperature sensor, and then the heated soil body is controlled to maintain default temperature
Angle value, it can not only ensure that the soil body is not frozen really, moreover it is possible to so that the soil body is in the temperature range being actually needed, further improve
Freeze the efficiency of prevention and control.
4th, have a wide range of application：The present invention integrates the function such as heating, temperature control, waterproof, water conservation, heat-insulated, by electricity during use
Blanket is covered in soil body surface, and energization can automatic running；Meanwhile according to shape, the size for freezing prevention and control main body, the system
Corresponding shape, area can be adjusted freely, it is ensured that the scope for freezing management and control is adjusted flexibly as needed, has a wide range of applications model
Enclose, still there is very strong adaptability in frost, sleet environment.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure：1-electrical blanket, 2-temperature sensor, 3-temperature detect switch (TDS), 4-ribbon heater, 5-electronic roller, 6-spoke wheel,
7-direction switch, 8-cable.
Embodiment
As shown in figure 1, a kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula, the system can specifically include electrical blanket
1st, temperature sensor 2, temperature detect switch (TDS) 3 and the automatic deploying and retracting mechanism being made up of electronic roller 5 and spoke wheel 6；Electronic roller 5 is located at
The end of electrical blanket 1, spoke wheel 6 are symmetrically arranged at the electronic both ends of roller 5, and spoke wheel 6 is provided with the direction switch that can adjust its direction of traffic
7。
Specifically, the one end of electrical blanket 1 is fixed on the roller of electronic roller 5, and the rolling of roller can be by electrical blanket 1 wound on roller
Discharge above or from roller；The spoke wheel 6 on both sides can be linked or separated with electronic roller 5 by lockup switch, and its is right
Electronic roller 5 is supported and ensures that electrical blanket 1 is smoothly walked during folding and unfolding；Direction switch 7 controls electronic roller 5 to be applied
Pole change in polarity is powered up, electronic roller 5 is produced according to the conversion of applied polarity of electrode and rotated clockwise or counterclockwise, band
Dynamic spoke wheel 6 advances or retreated, and then realizes the automatic deploying and retracting of electrical blanket 1.Wherein, according to the scope and electrical blanket 1 for freezing prevention and control
Length, the diameter of spoke wheel 6 is adjustable.
In use, electrical blanket 1 is covered in soil body surface, control of the electrical blanket 1 in temperature detect switch (TDS) 3 using automatic deploying and retracting mechanism
Under the soil body is heated, temperature sensor 2 is embedded in 1 time soil body surface of electrical blanket, in real time measure present position the soil body
Temperature simultaneously transmits it to temperature detect switch (TDS) 3, can be wired connection or nothing between temperature sensor 2 and temperature detect switch (TDS) 3
Line connects；Temperature detect switch (TDS) 3 is used for the condition of work according to setting（Temperature）Open and close the power supply powered for electrical blanket 1.
Wherein, temperature sensor 2 is a kind of thermoelectricity resistance type that can be experienced temperature and be converted into usable output signal or thermoelectricity
Even type sensor, for its operating temperature between -45~45 DEG C, resolution ratio is ± 0.1 DEG C.
Above-mentioned electrical blanket 1 is in addition to it can heat, and it also has the performance such as insulation, waterproof, heat-insulated, non-hygroscopic so that electrical blanket 1
It is internal to isolate with the temperature in the external world, moisture, to ensure that heat caused by electrical blanket 1 is used for heating the soil body as much as possible, improve heating
Efficiency.In addition, in order to ensure the service life of electrical blanket 1, it can also have the characteristics that wear-resistant, resistance to drawing, the pliability of pulling is good.
Specifically, electrical blanket 1 can be multi-layer fiber and the composite construction of film interaction superposition, uniformly be laid in composite construction
There is ribbon heater 4, wherein, fiber is that fibrous material, the films such as polyester fiber are polyethylene Polymer material, and composite construction can be
One layer of fiber thin film, two layers of fiber thin film or multi-layer fiber multi-layer film structure.
Ribbon heater 4 is equably to wrap up one layer between two parallel metal buses to have positive temperature coefficient semi-conducting material system
Into core ribbon, parallel to be distributed between fibrous layer and film layer, such as in the composite construction of three layers of fiber double-layer films, electric heating
With 2 it is parallel at spacing intervals be distributed between the fibrous layer of soil body side and film layer, the width side of direction and electrical blanket 1
To consistent, the both positive and negative polarity of ribbon heater 2 accesses temperature switch 3 after coupling respectively by cable 8.
The condition of work that temperature switch 3 can be set according to（Temperature）The system for being switched on or off action can be produced
Row Automatic Control Component（That is its internal switch block that there is control cable 8 to connect or disconnect）, temperature control operating temperature range
For -25~240 DEG C；Certainly, temperature detect switch (TDS) 3 can also be wireless temperature control, i.e., temperature detect switch (TDS) 3 is by powering for electrical blanket 1
Power supply sends wireless signal（Open control command or closing control order）Realize the control opened and closed to power supply.
Specifically, temperature detect switch (TDS) 3 controls being turned on and off for electrical blanket 1 according to the soil temperature received, so that soil body temperature
Degree maintains some preset temperature value, specifically：Set in advance in temperature detect switch (TDS) 3 one it is current freeze prevention and control main body required for
The temperature value of maintenance, such as 5 DEG C；When receiving the soil temperature from temperature sensor 2, by current soil temperature with presetting
Temperature value compares, and when soil temperature is less than 5 DEG C, opens electrical blanket 1 and is heated so that soil temperature rises to 5 DEG C（If
In heated condition is opened, that continues to keep it turned on electrical blanket 1）, when soil temperature is equal to or more than 5 DEG C, close
Electrical blanket 1 stops heating, so that soil temperature is kept for 5 DEG C or drops to 5 DEG C.
Certainly, temperature detect switch (TDS) 3 as needed can also control soil temperature to maintain in some temperature range, such as 5 ~ 8
℃；When soil temperature exceedes 8 DEG C of higher limit, close electrical blanket 1 and stop heating, when soil temperature is less than 5 DEG C of lower limit, open
Electrical blanket 1 is heated.
Temperature control freezing soil prevention and control system based on automatic deploying and retracting formula disclosed in above-described embodiment, tie in another embodiment of the application
Close practical engineering application to illustrate the efficiency of the prevention and control system, specifically built with " the river mouth power station of Sichuan Yalongjiang River two " engineering
If the prevention and control of freezing of the dam body core wall construction scope of operation carry out live demonstration experiment during winter construction.
In experiment,（1）The composite construction of electrical blanket 1 uses the film geotextiles of three cloth two, ribbon heater 4 using on the market it is conventional from
Warm parallel type electric heating strip is limited, ribbon heater 4 is abreast placed among the fibrous layer and film layer of the bottom of electrical blanket 1 and handed over per 2m mono-
It is woven in together, the length of every ribbon heater 4 is identical with the breadth of electrical blanket 1, so as to form the electrical blanket with " film electricity composite construction "
1.（2）The electronic diameter 20cm of roller 5, length 4m, the diameter 1.6m of spoke wheel 6.
When carrying out freezing prevention and control to the operation side of dam body core-wall using the prevention and control system, it is moved into construction and makees
Industry face is connected with the mains behind one end, is then turned on direction switch 7 and is slowly covered electrical blanket 1 on operation side, by TEMP
Device 2 is placed in the top layer soil body of operation side, sets the temperature value that operation side needs to maintain, the prevention and control system
Self-heating is simultaneously incubated temperature control.At the end of operation side freezes prevention and control needs, start direction switch 7 and the electronic roller of locking
5 and spoke wheel 6, electrical blanket 1 is packed up and moves on to storage area storage.
Wherein, during prevention and control system progress exemplary assay is freezed to this, the maintenance temperature of the core-wall top layer soil body is set
Be set to 3 DEG C, at regular intervals to the core-wall position top layer soil temperature under temperature control, do not carry out freezing prevention and control core-wall position top layer
Soil temperature and air themperature synchronize measurement record, as a result as shown in table 1.
The temperature control freezing soil prevention and control system effectiveness contrast of the automatic deploying and retracting formula of table 1
| Date | The lowest temperature （℃） | The corresponding moment does not carry out freezing prevention and control Core-wall top layer soil temperature（℃） | The corresponding moment is in the heart under " film electricity composite construction " Veneer of wall soil temperature（℃） |
| 2017.1.6 | -4.4 | -4.6 | 3.1 |
| 2017.1.7 | -4.1 | -5.0 | 3.0 |
| 2017.1.8 | -4.3 | -5.1 | 3.2 |
| 2017.1.9 | -5.2 | -4.9 | 3.0 |
| 2017.1.10 | -4.5 | -4.3 | 3.1 |
As can be seen from the above table, continuous 5 days of winter construction phase when temperature reaches the minimum moment, did not carried out freezing the dam body of prevention and control
The temperature of the core-wall position top layer soil body is negative value, and in frozen state, and the temperature control soil body in the application automatic deploying and retracting formula freezes
The top layer soil temperature at the dam body core-wall position under knot prevention and control systemic effect remains at 3 DEG C or so, freezes in positive Wen Wei
State, there is not the dam body core-wall position top layer soil temperature freezed under prevention and control measure to be higher by 7.7~8.3 DEG C.Thus prove, this
The temperature control freezing soil prevention and control system of application automatic deploying and retracting formula has excellent efficiency in terms of prevention and control are freezed.
Claims (6)
- A kind of 1. temperature control freezing soil prevention and control system of automatic deploying and retracting formula, it is characterised in that：The system includes electrical blanket（1）, temperature Sensor（2）, temperature detect switch (TDS)（3）, be located at the electrical blanket（1）The electronic roller of end（5）And it is symmetrically arranged at the electromotive roller Cylinder（5）The spoke wheel at both ends（6）, the spoke wheel（6）The direction switch of its direction of traffic can be adjusted by being provided with（7）；Wherein, the electrical blanket（1）With insulation, waterproof, heat-proof quality, it is used to be covered in soil body surface and the soil body is added Heat, the temperature sensor（2）For measuring soil temperature, the temperature detect switch (TDS)（3）For being controlled according to the soil temperature The electrical blanket（1）It is turned on and off and then controls the soil body to maintain preset temperature value.
- 2. the temperature control freezing soil prevention and control system of automatic deploying and retracting formula as claimed in claim 1, it is characterised in that：The temperature passes Sensor（2）With the temperature detect switch (TDS)（3）Between be wired connection or wireless connection.
- 3. the temperature control freezing soil prevention and control system of automatic deploying and retracting formula as claimed in claim 1 or 2, it is characterised in that：The electricity Blanket（1）The composite construction of superposition is interacted for multi-layer fiber and film, ribbon heater is uniformly equipped with the composite construction（4）.
- 4. the temperature control freezing soil prevention and control system of automatic deploying and retracting formula as claimed in claim 3, it is characterised in that：The ribbon heater （4）It is parallel to be distributed between fibrous layer and film layer, direction and the electrical blanket（1）Width it is consistent.
- 5. the temperature control freezing soil prevention and control system of automatic deploying and retracting formula as claimed in claim 3, it is characterised in that：The temperature control is opened Close（3）It is located at as the ribbon heater（4）The cable of electric energy is provided（8）On, it is internal with the control cable（8）Connection or The switch block of disconnection.
- 6. the temperature control freezing soil prevention and control system of automatic deploying and retracting formula as claimed in claim 3, it is characterised in that：The fiber is Polyester fiber, the film are polyethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792332.1A CN107338787A (en) | 2017-09-05 | 2017-09-05 | A kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792332.1A CN107338787A (en) | 2017-09-05 | 2017-09-05 | A kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula |
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| Publication Number | Publication Date |
|---|---|
| CN107338787A true CN107338787A (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710792332.1A Pending CN107338787A (en) | 2017-09-05 | 2017-09-05 | A kind of temperature control freezing soil prevention and control system of automatic deploying and retracting formula |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962644A (en) * | 2021-02-03 | 2021-06-15 | 王惠娟 | Sand foundation pit dewatering construction structure and construction method |
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Application publication date: 20171110 |