CN103867846A - Electric tracing heat preservation device for cold region underground pipeline device - Google Patents
Electric tracing heat preservation device for cold region underground pipeline device Download PDFInfo
- Publication number
- CN103867846A CN103867846A CN201410123199.7A CN201410123199A CN103867846A CN 103867846 A CN103867846 A CN 103867846A CN 201410123199 A CN201410123199 A CN 201410123199A CN 103867846 A CN103867846 A CN 103867846A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- electric tracing
- monitoring system
- protective layer
- tracing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
Abstract
The invention discloses an electric tracing heat preservation device for a cold region underground pipeline device. The electric tracing heat preservation device comprises electric tracing heating cables, a heat preservation protective layer and a temperature monitoring system. The electric tracing heating cables are laid along a pipeline, the heat preservation protective layer is arranged on the outer side of the pipeline, the temperature monitoring system is connected with the electric tracing heating cables, and temperature sensors of the temperature monitoring system are tightly attached to the outer wall of the pipeline. The heat preservation protective layer is composed of a composite silicate heat insulating layer, a glass cloth composite aluminum foil damp-proof layer and an aluminum alloy sheet protective layer. The temperature monitoring system comprises the temperature sensors and a comprehensive control device. The temperature sensors are connected with the comprehensive control device through connection terminals. Thermistors serve as the temperature sensors and are tightly attached to the outer wall of the pipeline, and each electric tracing heating cable is matched with two temperature sensors. The temperature monitoring system achieves remote monitoring, any failure of the electric tracing heat preservation device is found in time, and safety running of the cold region underground pipeline device is ensured.
Description
Technical field
The present invention relates to the thermal insulation apparatus of pipe-line equipment, particularly the electric tracing thermal insulation device of subway pipe-line equipment.
Background technique
Along with blocking up of urban transportation, the urban track traffic convenient, punctual, freight volume is large is subject to parent and looks at.As urban rapid railway traffic pioneer's subway, get up in the construction that many cities are like a raging fire, in succession open the subway of operation and people's trip is of close concern to each other, the safe operation of subway and the maintenance of relevant device are further paid attention to.
Having there is freeze injury in various degree in the subway pipe-line equipment of north cold area, brings hidden danger to the safe operation of subway.
As freeze injury appears in the water supply and sewerage pipeline equipment of subway, will directly have influence on passenger and the staff movable and work in subway; As there is freeze injury in water fire protection pipeline equipment, can affect fire rescue, the heavy losses of property can be caused, and personnel's life safety can be seriously jeopardized.Therefore, the anti-freezing and heat-insulating of cold area subway pipe-line equipment is extremely important, intentinonally the heater by service of iron pipe conduit equipment.
Pipe-line equipment environment of living in existing underground station and interval has following features: 1, temperature and the outdoor temperature at the position such as station entrance-exit, hole, station and interval air channel are more or less the same in the winter time, also under cold environmental conditions; 2, the position wind speed such as station entrance-exit, hole and interval air channel is larger, and high wind speed can reach 11m/s, is more subject to the impact of outside severe cold; 3, under pump house, toilet, lavatory, station platform plate, gutter, culvert etc. are located, and part, for a long time in dampness, has increased difficulty to the enforcement of heater by service; 4, especially interval stray electrical current is more completely for subway, and influence of vibration is remarkable, for anti-freezing and heat-insulating equipment proposes higher requirement.
At present, the conventional heat-preserving anti-freezing measure of subway pipe-line equipment application adopts the pipe-line equipment electric tracing thermal insulation measure using in common buildings, and electric tracing cable, with pipe laying, and is wound around to thermal insulation layer in outside.
In the iron pipe conduit electric tracing thermal insulation measure of existing ground, heat insulation protecting layer used easily comes off, and thermal insulating material is perishable damage under moist environment, does not also reach the relevant desired fire-protection standard of subway standard; And, also there is the shortcomings such as remote surveillance capabilities deficiency, can not find in time the situation such as water enchroachment (invasion), cable short circuit, even there is pipe-line equipment and the heat insulation protecting layer phenomenon that freezes, be difficult to realize the anti-freezing and heat-insulating effect of pipe-line equipment.
Summary of the invention
For the existing problem of Insulation of existing cold area subway pipe-line equipment; the present invention releases a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment; its object is; the electrical tracing heating cable laying with pipe-line equipment, outer heat insulation protecting layer and the temperature monitoring system arranging of pipeline are combined; heat energy is held back by heat insulation protecting layer to realize; prevent that pipe-line equipment from freezing; and be connected with station equipment supervisory system by temperature monitoring system alarm, realize telemonitoring.
A kind of electric tracing thermal insulation device for cold area subway pipe-line equipment involved in the present invention; comprise electrical tracing heating cable, heat insulation protecting layer, temperature monitoring system; electrical tracing heating cable is along pipe laying; pipeline arranged outside heat insulation protecting layer; temperature monitoring system is connected with electrical tracing heating cable, and the temperature transducer of temperature monitoring system is close to pipeline outer wall and is installed.
Electrical tracing heating cable adopts power to be less than or equal to the permanent power electrical tracing of the twin-core heating cable of 20W/m, and cable material is low-smoke halogen-free flame retardant, and fire resistance rating is A level.The outer cladding in the ribbon heater anti-corrosion insulating layer of electrical tracing heating cable, has mechanical strength high, the feature that anti-corrosion capability is strong.
Heat insulation protecting layer is made up of composite heat-insulating silicate layer, glass cloth clad aluminum foil vapor barrier and aluminium alloy sheet protective layer; composite heat-insulating silicate layer is the nexine of being close to pipeline outer wall; aluminium alloy sheet protective layer is outer, and glass cloth clad aluminum foil vapor barrier is mesosphere.
Composite heat-insulating silicate layer thickness 30～100mm, density is 150～160Kg/m
3, fire resistance rating is A level.
Glass cloth clad aluminum foil damp course dampproofing water absorption rate is less than 1%.
The resistance to combustion grade of aluminium alloy sheet protective layer is A level, and protection complex silicate magnesium salts heat insulation layer and glass cloth clad aluminum foil vapor barrier are not damaged.Aluminium alloy sheet protective layer thickness is determined according to the external diameter size of protection pipeline, and in the time that the external diameter of pipeline is less than or equal to 100mm, aluminium alloy sheet protective layer thickness is got 0.3mm; In the time that the external diameter of pipeline is greater than 100mm, aluminium alloy sheet protective layer thickness is got 0.4mm.
Temperature monitoring system comprises temperature transducer and composite control apparatus.Composite control apparatus is placed in electric heat tracing control box, and temperature transducer is connected with composite control apparatus by tenminal block.
Temperature transducer is thermistor, is close to pipeline outer wall and installs, two temperature transducers of every electrical tracing heating cable configuration.
Electric heat tracing control box is arranged on subway tunnel sidewall, and composite control apparatus is set in electric heat tracing control box, and composite control apparatus comprises reception unit, alarm, and alarm connects reception unit, and control module is set in reception unit.
Electric heat tracing control box panel is provided with manually automatically and closes throw over switch, run indicator, fault indicating lamp and integrated display.Manually automatically and close throw over switch, run indicator, fault indicating lamp and integrated display and be connected with reception unit.
Composite control apparatus connects the temperature transducer of electrical tracing heating cable configuration by the tenminal block in electric heat tracing control box, the composite control apparatus of each electric heat tracing control box arranges 6～8 tenminal blocks, can control 6～8 sections of electrical tracing heating cable.Every section of electrical tracing heating cable length is 150～200m, and the controllable electrical tracing heating cable of each electric heat tracing control box total length is 900～1200m.
Alarm also connects control room, underground station, the electric tracing thermal insulation device working condition that control room, underground station can remote monitoring subway pipe-line equipment.
Electric tracing thermal insulation device involved in the present invention adopts the electrical tracing heating cable heat insulation protecting layer being made up of heat insulation layer, vapor barrier and protective layer, can play well the effect of electrical tracing heating cable heat insulation protecting; Also realize telemonitoring by supervisory system, find in time any fault that electric tracing thermal insulation device occurs, ensure the safe operation of cold area subway pipe-line equipment.
Accompanying drawing explanation
Fig. 1 is the electric tracing thermal insulation apparatus structure schematic diagram of subway pipe-line equipment of the present invention;
Fig. 2 is electric heat tracing control box structural representation in Fig. 1.
Description of symbols in figure:
1, electric heat tracing control box 2, composite control apparatus
3, reception unit 4, tenminal block
5, protective layer 6, vapor barrier
7, heat insulation layer 8, temperature transducer
9, pipeline 10, alarm
11, electrical tracing heating cable 12, run indicator
13, integrated display 14, switch
15, fault indicating lamp
Embodiment
By reference to the accompanying drawings technological scheme of the present invention is described further.Fig. 1 and Fig. 2 have shown basic structure of the present invention; as shown in the figure; a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment involved in the present invention; comprise electrical tracing heating cable 11, heat insulation protecting layer, temperature monitoring system; electrical tracing heating cable lays along pipe-line equipment; pipe-line equipment arranged outside heat insulation protecting layer, temperature monitoring system is connected with electrical tracing heating cable 11, and the temperature transducer 8 of temperature monitoring system is close to pipeline 9 outer walls and is installed.
Electrical tracing heating cable 11 adopts power to be less than or equal to the permanent power electrical tracing of the twin-core heating cable of 20W/m, and cable material is low-smoke halogen-free flame retardant, and fire resistance rating is A level.The outer cladding in the ribbon heater anti-corrosion insulating layer of electrical tracing heating cable, has mechanical strength high, the feature that anti-corrosion capability is strong.
Heat insulation protecting layer is made up of composite heat-insulating silicate layer 7, glass cloth clad aluminum foil vapor barrier 6 and aluminium alloy sheet protective layer 5; composite heat-insulating silicate layer 7 is for being close to the nexine of pipeline 9 outer walls; aluminium alloy sheet protective layer 5 is outer, and glass cloth clad aluminum foil vapor barrier 6 is mesosphere.
Composite heat-insulating silicate layer 7 thickness 30～100mm, density is 150～160Kg/m
3, fire resistance rating is A level.
Glass cloth clad aluminum foil vapor barrier 6 moistureproof water absorption rates are less than 1%.
Aluminium alloy sheet protective layer 5 fire resistance ratings are A level, and protection complex silicate magnesium salts heat insulation layer 7 and glass cloth clad aluminum foil vapor barrier 6 are not damaged.Aluminium alloy sheet protective layer 7 thickness are determined according to the external diameter size of institute's protection pipeline, and in the time that the external diameter of pipeline is less than or equal to 100mm, aluminium alloy sheet protective layer thickness is got 0.3mm; In the time that the external diameter of pipeline is greater than 100mm, aluminium alloy sheet protective layer thickness is got 0.4mm.
Temperature monitoring system comprises temperature transducer 8 and composite control apparatus 2.Composite control apparatus 2 is placed in electric heat tracing control box, and temperature transducer 8 is connected with composite control apparatus 2 by tenminal block 4.
Electric heat tracing control box 1 is arranged on subway tunnel sidewall, the interior composite control apparatus 2 that arranges of electric heat tracing control box 1, and composite control apparatus 2 comprises reception unit 3, alarm 10, alarm 10 connects reception unit 3, the interior control module that arranges of reception unit 3.
Electric heat tracing control box 1 panel is provided with manually automatically and closes throw over switch 14, run indicator 12, fault indicating lamp 15 and integrated display 13.Manually automatically and close throw over switch 14, run indicator 12, fault indicating lamp 15 and integrated display and be connected with reception unit 3.
Claims (6)
1. the electric tracing thermal insulation device for cold area subway pipe-line equipment, it is characterized in that, comprise electrical tracing heating cable, heat insulation protecting layer, temperature monitoring system, electrical tracing heating cable is along pipe laying, pipeline arranged outside heat insulation protecting layer, temperature monitoring system is connected with electrical tracing heating cable, and the temperature transducer of temperature monitoring system is close to pipeline outer wall; Heat insulation protecting layer is made up of composite heat-insulating silicate layer, glass cloth clad aluminum foil vapor barrier and aluminium alloy sheet protective layer; composite heat-insulating silicate layer is the nexine of being close to pipeline outer wall; aluminium alloy sheet protective layer is outer, and glass cloth clad aluminum foil vapor barrier is mesosphere.
2. a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment according to claim 1, is characterized in that, described composite heat-insulating silicate layer thickness is 30～100mm, and density is 150～160Kg/m
3.
3. a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment according to claim 1, is characterized in that, described glass cloth clad aluminum foil damp course dampproofing water absorption rate is less than 1%.
4. a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment according to claim 1, it is characterized in that, described aluminium alloy sheet protective layer is determined according to the external diameter size of institute's protection pipeline, in the time that the external diameter of pipeline is less than or equal to 100mm, aluminium alloy sheet protective layer thickness is got 0.3mm; In the time that the external diameter of pipeline is greater than 100mm, aluminium alloy sheet protective layer thickness is got 0.4mm.
5. a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment according to claim 1, it is characterized in that, described temperature monitoring system comprises temperature transducer and composite control apparatus, composite control apparatus is placed in electric heat tracing control box, and temperature transducer is connected with composite control apparatus by tenminal block; Temperature transducer is thermistor, is close to pipe-line equipment outer wall and installs, two temperature transducers of every electrical tracing heating cable configuration.
6. a kind of electric tracing thermal insulation device for cold area subway pipe-line equipment according to claim 1, is characterized in that, described composite control apparatus comprises reception unit, alarm, and alarm connects reception unit, and control module is set in reception unit; Described electric heat tracing control box panel is provided with manually automatically and closes throw over switch, run indicator, fault indicating lamp and integrated display, manually automatically and close throw over switch, run indicator, fault indicating lamp and integrated display and be connected with reception unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123199.7A CN103867846B (en) | 2014-03-28 | 2014-03-28 | A kind of electric tracing thermal insulation device for cold area subway pipe-line equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123199.7A CN103867846B (en) | 2014-03-28 | 2014-03-28 | A kind of electric tracing thermal insulation device for cold area subway pipe-line equipment |
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| CN103867846A true CN103867846A (en) | 2014-06-18 |
| CN103867846B CN103867846B (en) | 2015-11-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439366A (en) * | 2016-11-27 | 2017-02-22 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline coupling with heating function |
| CN106851867A (en) * | 2017-02-10 | 2017-06-13 | 赵亚青 | A kind of electrothermal pipe |
| CN110067911A (en) * | 2019-05-16 | 2019-07-30 | 中建材行业生产力促进中心有限公司 | Embedded medium pipeline and preparation method thereof with freeze proof dampproof effect |
| CN110067912A (en) * | 2019-05-16 | 2019-07-30 | 中建材行业生产力促进中心有限公司 | Surface equipped with electric-heating belt sets medium pipeline and preparation method thereof |
| CN112709882A (en) * | 2020-12-25 | 2021-04-27 | 博迈科海洋工程股份有限公司 | Control method of electric tracing self-adaptive system of polar region oil and gas pipeline |
| CN113089773A (en) * | 2021-03-26 | 2021-07-09 | 格兰富控股联合股份公司 | Intelligent heat-preservation pump room and intelligent heat-preservation control method of pump room |
| CN113738064A (en) * | 2021-09-30 | 2021-12-03 | 中建五局第三建设有限公司 | Structural terrace heat insulation structure and construction method |
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| CN2483580Y (en) * | 2001-06-26 | 2002-03-27 | 姚豪杰 | Non-condensation and frozen-proof composite aluminium-plastic tube |
| US20100209085A1 (en) * | 2009-02-13 | 2010-08-19 | Ellis Michael H | Heated fluid conduits, systems and methods |
| CN201810929U (en) * | 2010-10-25 | 2011-04-27 | 北京航信伟业保温科技有限公司 | Electric thermal insulation system for subway pipeline |
| CN103161197A (en) * | 2013-04-10 | 2013-06-19 | 无锡市崇安区科技创业服务中心 | Automatic freeze-proofing device of water pipe |
| CN203847897U (en) * | 2014-03-28 | 2014-09-24 | 铁道第三勘察设计院集团有限公司 | Electric heat tracing insulation device for metro pipeline equipment in cold region |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483580Y (en) * | 2001-06-26 | 2002-03-27 | 姚豪杰 | Non-condensation and frozen-proof composite aluminium-plastic tube |
| US20100209085A1 (en) * | 2009-02-13 | 2010-08-19 | Ellis Michael H | Heated fluid conduits, systems and methods |
| CN201810929U (en) * | 2010-10-25 | 2011-04-27 | 北京航信伟业保温科技有限公司 | Electric thermal insulation system for subway pipeline |
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| CN203847897U (en) * | 2014-03-28 | 2014-09-24 | 铁道第三勘察设计院集团有限公司 | Electric heat tracing insulation device for metro pipeline equipment in cold region |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439366A (en) * | 2016-11-27 | 2017-02-22 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline coupling with heating function |
| CN106851867A (en) * | 2017-02-10 | 2017-06-13 | 赵亚青 | A kind of electrothermal pipe |
| CN106851867B (en) * | 2017-02-10 | 2020-02-14 | 赵亚青 | Electric heating pipeline |
| CN110067911A (en) * | 2019-05-16 | 2019-07-30 | 中建材行业生产力促进中心有限公司 | Embedded medium pipeline and preparation method thereof with freeze proof dampproof effect |
| CN110067912A (en) * | 2019-05-16 | 2019-07-30 | 中建材行业生产力促进中心有限公司 | Surface equipped with electric-heating belt sets medium pipeline and preparation method thereof |
| CN112709882A (en) * | 2020-12-25 | 2021-04-27 | 博迈科海洋工程股份有限公司 | Control method of electric tracing self-adaptive system of polar region oil and gas pipeline |
| CN112709882B (en) * | 2020-12-25 | 2022-09-16 | 博迈科海洋工程股份有限公司 | Control method of electric tracing self-adaptive system of polar region oil and gas pipeline |
| CN113089773A (en) * | 2021-03-26 | 2021-07-09 | 格兰富控股联合股份公司 | Intelligent heat-preservation pump room and intelligent heat-preservation control method of pump room |
| CN113738064A (en) * | 2021-09-30 | 2021-12-03 | 中建五局第三建设有限公司 | Structural terrace heat insulation structure and construction method |
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| Publication number | Publication date |
|---|---|
| CN103867846B (en) | 2015-11-18 |
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Address after: 300142 Hebei District, Zhongshan Road, No. 10, Patentee after: China Railway Design Group Limited Address before: 300142 Hebei District, Zhongshan Road, No. 10, Patentee before: China Railway Third Survey and Design Institute Group Ltd. |