CN101492114B - Energy-saving explosion-proof electric heater for pot - Google Patents
Energy-saving explosion-proof electric heater for pot Download PDFInfo
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- CN101492114B CN101492114B CN2009100643363A CN200910064336A CN101492114B CN 101492114 B CN101492114 B CN 101492114B CN 2009100643363 A CN2009100643363 A CN 2009100643363A CN 200910064336 A CN200910064336 A CN 200910064336A CN 101492114 B CN101492114 B CN 101492114B
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Abstract
The invention relates to an energy saving explosion prevention electric heater for pots, which is provided with a heating device which extends into a pot from the outside of the pot and a flow jet and heat transfer device, wherein the flow jet and heat transfer device consists of a flow jet pump and a flow jet pipe which is connected with the flow jet pump and extends into the pot. A liquid inlet of the flow jet pump is communicated with a liquid storage pot through a liquid suction pipe, and the part of the flow jet pipe extending out of the pot is provided with an electromagnetic scale preventing and scale removing device. The heating device consists of a plurality of electric heating components, and is arranged in a lower position in the liquid storage pot parallel to the flow jet pipe, wherein the electric heating components and the part of the flow jet pipe extending out of the pot are coated with an explosion prevention box, and the inside of the explosion prevention box is provided with a heating monitoring device. The energy saving explosion prevention electric heater can prevent the surface of the electric heater from scaling and coking effectively, and has the advantages of high heat energy transfer speed, high electric heat efficiency, long service life, obvious energy saving effect, good explosion prevention safety performance, convenient operation and maintenance, and the like.
Description
Technical field
The invention belongs to the heating device technical field, especially for a kind of energy-saving explosion-proof electric heater for pot of the former wet goods chemical liquid heating of tank storage.
Background technology
In productions such as oil, chemical industry, accumulating field, often need heat dilution to crude oil or chemical liquid, strengthen its flowing power, and its explosion-proof performance is had higher requirement.In existing heating technique, usually the heating arrangement that adopts is that some electro heat core bodys are placed a fully enclosed sleeve pipe, and fill conduction oil, again heating arrangement is installed in the middle part of petrol storage tank, the electro heat core body generally adopts the heating of power frequency electromagnetism, mineral heating cables or electric heating tube etc., produce heat energy heating conduction oil by the electro heat core body, by conduction oil heat is transmitted to sleeve pipe, by the crude oil liquid of sleeve pipe, finally finish the heat temperature raising of crude oil in the petrol storage tank again by crude oil liquid conduction of heat each other with heat transferred contact surface surperficial with it.Too high in order to prevent heating-up temperature; cause conduction oil charing coking and rotten and sleeve surface thermal load to increase by overtemperature and phenomenons such as generation crude oil fouling coking; be provided with Heating protector in the conduction oil in sleeve pipe; the temperature protection value generally is set at about 120 ℃; the mode of silicon control phase shifting control or ac contactor contact control is generally adopted in the control of electric heater temperature, and the defective that this temperature booster exists is:
(1) owing to its heat transfer type conducts by the contact that is heated between the liquid internal fully, thereby rate of heat transfer is low, and the pot liquid programming rate is slow, and it is poor to melt cured viscosity reducing effect, and each space temperature variation is big, has the heating dead angle, and electrothermal efficiency is low.Crude oil fluid reservoir with 66 cubic meter volumes is an example, settles two cover 20kw electric heaters, and the heating gross horsepower is 40kw.It is 26 ℃ that its fluid reservoir import comes liquid temp, and the temperature booster operation is after five hours, and crude oil temperature can only rise to about 28 ℃ in jar, and the surface temperature of sleeve pipe reaches more than 91 ℃ unexpectedly.
(2) crude oil is the compound of multiple hydro-carbon, often contains solid-state and semisolids such as asphaltene, colloid, inorganic matter and oil-water emulsion; Often be entrained with accretions such as silt, incrustation scale, iron rust, corrosion product and biology in the crude oil simultaneously; Also be dissolved with various salts in addition, as accretions such as hydrocarbonate, sulfate, chloride, silicate, the easy adhesion deposition of these materials is at the heat-delivery surface of electric heater, form the lower heat resistant layer of coefficient of thermal conductivity, the heat transfer of electric heater is had a strong impact on and reduce, and can bring out phenomenons such as fouling, charing coking, cause the pernicious increase of thermal resistance again, make the heat efficiency of electric heater reduce greatly, energy consumption increases greatly.
(3) along with the prolongation of temperature booster period of service, heat efficiency desired value that is presented and specification sheets nominal value error can be more and more big, and the heat that electric heater is produced can not be utilized effectively.
(4) because the speed of transfer of heat is low and the adhesion dirt; the influence that dirt is burnt; the oil liquid temperature that stores in jar also is not raised to the setting value of requirement; and the conduction oil temperature in the temperature booster has been raised to dry combustion method protection value more than 120 ℃; the dry combustion method protective circuit is that control heater quits work; because the heat that stores in the conduction oil is limited; its temperature can drop to below 120 ℃ very soon; temperature booster will restart heating; make electric heater be operated in frequent start and stop state thus; and the oily temperature of jar inner fluid does not increase all the time; not heated dead band is many; not only energy consumption is very high, and viscosity reducing effect is poor, and silicon control phase shifting control or ac contactor contact mode are generally adopted in the control of electric heater temperature in addition; frequent start-stop; easily electrical network is caused shar pounding, harmonic pollution is serious, has heater failure rate height simultaneously; safe reliability is poor, disadvantages such as maintenance cost height.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can effectively prevent the coking of electric heater surface scale, improve the speed of transfer of heat, strengthen electrothermal efficiency, and can eliminate the heating dead angle, the intensification viscosity reducing effect is good, and anti-explosion safety performance height, the energy-saving explosion-proof electric heater for pot that serviceability is strong.
Realize that the technical scheme that purpose of the present invention is taked is: this temperature booster has a heating arrangement that puts in the jar outside jar, and be provided with the jet heat transfer unit (HTU), wherein, the jet heat transfer unit (HTU) is to be made of a jet pump and a jet pipe that is attached thereto and puts in the jar, the inlet of jet pump is communicated with fluid reservoir by pipette, jet pipe stretches out a jar outer position electromagnetism antiscaling and descaling device is housed, heating arrangement is to be made of a plurality of electric heating assemblies, jet pipe is positioned at the midway location of a plurality of electric heating assemblies, and be installed in parallel in lower position in the fluid reservoir with electric heating assembly, electric heating assembly and jet pipe stretch out a jar outer position and are coated with the flame proof box, are provided with the heating control monitor unit in the flame proof box.
Described electric heating assembly by electric heating tube and with it suit bonded assembly electrothermal sleeve form, be filled with the superconduction silicone grease between two tube walls.
Filter and control cock are housed on the described pipette.
The control cock that is used for control jet pressure and flow size is housed on the described jet pipe, in it puts in jar the left and right and downside of part with and the end all arrange and be laid with the jet spray suction member that is communicated with jet pipe.
Described electromagnetism antiscaling and descaling device is made up of the electromagnetism antiscaling, descaling control desk that is enclosed within the magnet coil on the jet pipe and connect with it, and the rating horsepower of this control desk is set in more than the 2000W.
Described heating control monitor unit comprises:
A teletransmission information monitoring device, be used for liquid temperature monitor signal, level monitoring signal, monitoring poisonous gas signal, heater current monitor signal, teletransmission control signal and execute-in-place control signal being gathered, change, being handled, and transmit at a distance, accept and control by wireless signal by signal converter;
A power control module is used for electric heating tube is carried out the control of contact pointless break-make;
A cycle control module is used for the driving power control module in zero passage cycle stepless power regulating mode, and the height of electro heat temperature is regulated and control; And overcurrent, overvoltage, phase shortage are carried out integrated protection control;
A current transformer is used for that the heater current waveform is carried out zero passage and monitors and the size of electric current is monitored, and carries out overcurrent protection;
A signal converter is connected with teletransmission information monitoring device, level sensor, liquid temperature sensor, poisonous gas detection device and operation control panel respectively by signal transmssion line, is used for the conversion and the transmission of signal;
A level sensor is installed in a jar inner bottom part, is used for oil reserve in the jar is monitored;
A liquid temperature sensor is installed in the high temperature oil liquid zone in the jar, is used to monitor the temperature on electric heating assembly surface, so that power and start and stop by teletransmission information monitoring device control heater;
A poisonous gas detection device is installed in flame proof box outside, is used to monitor the concentration of operating environment noxious gas, stops environmental pollution, guarantees safety of operation.
A teletransmission remote control equipment (RCE) can adopt mobile phone or remote controller or other telecommand equipment, is used for the acceptance, demonstration of teletransmission information monitoring device wireless signal and teletransmission information monitoring device is sent the operation of wireless signal;
An operation control panel is connected with teletransmission information monitoring device by signal transmssion line, is used for that teletransmission information monitoring device sends the demonstration of signal and to the operation control of temperature booster.
The energy-saving explosion-proof electric heater for pot of making according to such scheme, according to fluid mechanics and heat transfer principle, broken the pattern of the interior crude oil of existing fluid reservoir or other chemical intensification viscosity reduction, solved many drawbacks that conventional heater exists, its beneficial effect is:
(1) this temperature booster can make the fluid fluid molecule or the molecular group rapid diffusion of heating, shortens a jar inner fluid temperature rise time, eliminates fluid heating dead angle area; reduce electrothermal sleeve wall heat transfer resistance; strengthen the speed of transfer of heat, the safety of protection high-temperature component, the service life of prolongation electric heater.
(2) adopt in the electrothermal sleeve the high superconduction silicone grease of exhausted good electrical property, coefficient of thermal conductivity as the heat transfer medium; can occur under the malfunctioning situation of dry combustion method protection; stop the ignite danger of fire gases in the oil tank of exothermic body; and when electric heating tube damages; only need open the flame proof box and electric heating tube is changed get final product, very convenient fast, time saving and energy saving; service expenditure and maintenance time can not only be reduced, and the safety of sympathetic initiation performance of the conduction efficiency and the exothermic body of heat energy can also be strengthened.
(3) this temperature booster utilizes heated liquid dielectric cyclic spray, and passes through the effect of electromagnetism antiscaling and descaling device, accelerates the dilution viscosity reduction speed of jar inner fluid greatly.And the jet that constitutes spray is inhaled the augmentation of heat transfer mode and jar interior orientation jet is washed away the blowdown cleaning technique, can prevent dirt and sediment adhesion deposition heating surface at electric heater, the fouling coking phenomenon is solved effectively, guarantee that temperature booster moves enduringly under efficient state.And, under the fluidic component jet action, can when fluid reservoir draining and oil-feed, play clear jar of blowdown and power-assisted effect, enlarge the effective volume of fluid reservoir, reduce the resistance of fluid reservoir oil-feed and draining simultaneously, alleviate the consumption of power of draining suction and oil-feed pressurization.
(4) the heat process energy-saving effect is remarkable, be that 66 cubic meter fluid reservoirs only need be equipped with the demand that can finish production operation once the cover gross horsepower for the 35kw electric heater for example to volume, and time of heat shortens greatly, not only equipment investment cost is low, and efficiency of heating surface height, the effect of heat is transmitted in realization with most economical equipment.
(5) this temperature booster combines with the control of temperature control and level gauging, can realize the Energy Saving Control mode that heats as required, and eliminate the frequent start-stop heating, saves energy resource consumption effectively, eliminate the pollution to electrical network, and the anti-explosion safety performance is enhanced.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of jet heat transfer unit (HTU);
Fig. 3 is the structure for amplifying scheme drawing that member is inhaled in the jet spray;
Fig. 4 is the system diagram of heating control monitor unit.
The specific embodiment
Referring to Fig. 1; Fig. 2; temperature booster of the present invention comprise be installed in the outer heating control monitor unit 2 of fluid reservoir 11 and put in outward jar by jar in an electric heater unit; and be provided with the jet heat transfer unit (HTU); wherein; electric heater unit has a plurality of electric heating assemblies that be arranged in parallel 7; this assembly by electric heating tube 19 and with it the airtight electrothermal sleeve 21 of suit bonded assembly form; be filled with superconduction silicone grease 20 between two tube walls; utilize superconduction silicone grease 20 exhausted good electrical property; the characteristics that coefficient of thermal conductivity is high; the heat that electric heating tube 19 can be sent conduction is rapidly given fluid on every side; and form a high temperature oil liquid zone around it; simultaneously under the malfunctioning situation of dry combustion method protection, the danger of fire gasess in the fluid reservoir 11 of can stopping to ignite.The outer external part of jar of electric heating tube 19 is connected with heating control monitor unit 2 by lead, and by the size and the start and stop of heating control monitor unit 2 its heating powers of control, this position also is coated with armored cassette 1, which is provided with flame proof wiring poling 3, so that strengthen the safety of sympathetic initiation performance of electric heating tube 19.The jet heat transfer unit (HTU) is to be made of jet pump 14 and the jet pipes 8 that are attached thereto and put in the fluid reservoir 11, the inlet of jet pump 14 is communicated with fluid reservoir 11 by pipette 17, filter 15 and control cock 16 are housed on the pipette 17, jet pipe 8 is positioned at the midway location of a plurality of electric heating assemblies 7, and be installed in parallel in lower position in the fluid reservoir 11 with electric heating assembly 7, it puts in jar left side of interior part, right and downside with and the end all arrange and be laid with the jet that is communicated with jet pipe 8 and spray suction member 5,6,9, this member is tubular structure (referring to Fig. 3), its two ends are provided with jet import 23 and injection orifice 25, middle narrow neck part has liquid sucting port 24, outside control cock 22 and the electromagnetism antiscaling and descaling device that is used for control jet pressure and flow size that be arranged with of the jar of jet pipe 8, the electromagnetism antiscaling and descaling device is made up of the electromagnetism antiscaling, descaling control desk 12 that is enclosed within the magnet coil 13 on the jet pipe 8 and connect with it, electromagnetism antiscaling, descaling control desk 12 can directly be purchased on market, the rating horsepower of its control desk is set in more than the 2000W, under the magnetic action of magnet coil 13, can prevent and dissolve the fluid fouling of high temperature oil liquid zone, avoid the silt carried secretly in the fluid, incrustation scale, iron rust, corrosion product and biogenic sediment and the various salts that wherein dissolve, as hydrocarbonate, sulfate, chloride, electrodeposition substances such as silicate stick to the heat-delivery surface of electrothermal sleeve 21, make electrothermal sleeve 21 remain high heat-conducting property, and prolong the efficient operating cycles that heats of temperature booster, save the heating power consumption.
Referring to Fig. 4, the heating control monitor unit is installed in the flame proof box 1, be by a teletransmission information monitoring device, a power control module, a cycle control module, current transformer and liquid temperature sensor, level sensor, the poisonous gas detection device, teletransmission remote control equipment (RCE) and operation control panel, wherein, teletransmission information monitoring device is respectively by signal transmssion line and power control module, cycle control module summation current transformer connects, and by signal converter and signal transmssion line respectively with liquid temperature sensor, level sensor, toxic gas sensor, the teletransmission remote control equipment (RCE) is connected with operation control panel, and the power control module summation current transformer is connected with the power circuit of heating arrangement respectively.Teletransmission information monitoring device carries out the control of contact pointless break-make by power control module to electric heating tube, and by the cycle control module, the driving power control module is regulated and control the height of electro heat temperature in zero passage cycle stepless power regulating mode; And overcurrent, overvoltage, phase shortage are carried out integrated protection control; By current transformer the size that current waveform carries out zero passage monitoring and electric current is monitored, carry out overcurrent protection simultaneously.Teletransmission information monitoring device is connected with operation control panel with liquid temperature sensor, level sensor, poisonous gas detection device, teletransmission remote control equipment (RCE) respectively with the signal transmitting device by signal transmssion line; be used for collection, conversion and the processing of various monitor signals; and, heating installation power supply electric current and break-make thereof are controlled according to monitoring data and setting protection value transmission instruction.Liquid temperature sensor is installed in jar high temperature oil liquid zone at interior electric heating assembly position, to realize monitoring to electrothermal sleeve 21 surface element megadyne temperature degree, and power and start and stop by teletransmission information monitoring device control heater, prevent that Yin Wendu is too high and cause the combustion explosion accident; Level sensor is installed in a jar inner bottom part, be used for monitoring to oil reserve in the jar, and processing and control by teletransmission information monitoring device, the size of how much regulating heating power according to oil reserve, reach the minimum effect of energy consumption, simultaneously, by the transmission of teletransmission information monitoring device processing signals, the ANOMALOUS VARIATIONS of liquid level is revealed or robbed or burgled warning, in time reminded operating personal to handle; The poisonous gas detection device is installed in flame proof box outside, be used to monitor the concentration of operating environment noxious gas, stop environmental pollution, guarantee safety of operation, and the transmission of the signal by teletransmission information monitoring device, can carry out onsite alarming and operation control, also can report to the police at a distance and operate control by the wireless signal of certain frequency, the teletransmission remote control equipment (RCE) can adopt mobile phone or remote controller or other telecommand equipment.
Principle of work: the crude oil in the fluid reservoir 11 or other liquid are under the effect of jet pump 14, suck fluid by pipette 17 from the high temperature oil liquid zone in the jar, inhale member 5,6,9 by jet pipe 8 and jet spray again, inhale injection orifice 25 ejections of member by the jet spray, inhale under the suction function that forms in the member 5,6,9 in the jet spray simultaneously, the liquid sucting port 24 that the crude oil of high temperature oil liquid zone or other liquid are inhaled member 5,6,9 from the jet spray in the fluid reservoir 11 enters, and the high-voltage oil liquid of inhaling in the member 5,6,9 with the jet spray mixes after injection orifice 25 ejections.Inhale under the fluid injection pressure and formed eddy current beating action thereof of member 5,6,9 in the jet spray, the crude oil of high temperature oil liquid zone or other liquid are constantly along the tank skin ascension that makes progress, enter the low temperature fluid district of fluid reservoir 11 internal upper parts, the then natural high temperature oil liquid zone sedimentation of the low temperature fluid in low temperature fluid district to the bottom, high temperature oil liquid zone and low temperature fluid district fluid are continuously circulated, form the convection current conduction of high low temperature fluid heat energy and contact conduction, and make the even rapidly intensification of fluid in the whole fluid reservoir 11.Because jet pipe 8 is installed in the bottom in the fluid reservoir 11, and the position of close fluid reservoir 11 inlets 10 and leakage hole 4, when in fluid reservoir 11, carrying feed liquor, because inhaling the fluid of member 9 ejections, the spray of the jet of jet pipe 8 ends reflects through tank skin, make inlet 10 positions of fluid reservoir 11 form an inwardly zone of negative pressure of suction, thereby can reduce the consumption of power of oil-feed pump; When draining outside fluid reservoir 11, jet pipe 8 sprays the outflow direction that the fluid of inhaling member 5 ejections is shunted directive leakage hole 4 with tank skin coupling end jet, help the outflow of jar inner fluid, reduce the consumption of power of oil drain pump, power in the time of can saving turnover fluid thus greatly, inhale under the high pressure oil action of hydraulic force of member 5,6,9 ejections in the jet spray simultaneously, the incrustation in the fluid reservoir 11 is discharged from leakage hole 4.
Heating control monitor unit among the present invention has functions such as security monitoring, Energy Saving Control, anti-theft alarm, historical data collection storage.If heater power source has a power failure, when phase shortage, overvoltage, overcurrent; after carrying signal to carry out calculation process for teletransmission information monitoring device by current transformer; inform operating personal with short message mode and onsite alarming mode; carry out the execute-in-place adjustment or and carry out teletransmission remote manipulation adjustment by SMS or other wireless signal; carry out current detecting by cycle control module, current transformer simultaneously; realize the automatic protection functions of overcurrent, zero passage, the pre-accident information of sending out that equipment is existed can in time be grasped and be controlled.If take place that noxious gas leaks or when exceeding standard (as H2S), can pass through toxic gas sensor, signal transmitting device transmission signals gives teletransmission information monitoring device through after the calculation process, inform that with short message mode and onsite alarming mode operating personal in time handles, guarantee the safe operation of equipment thus.This adds thermo-monitor can be real-time transmitted to teletransmission information monitoring device by the signal transmitting device with temperature in the fluid reservoir and liquid level data observed reading by liquid temperature sensor and level sensor, through calculation process, send instruction to the cycle control module, carry out stepless power regulating control, adjust the electric thermal power of temperature booster, realize the Energy Saving Control mode of " heating as required ".Simultaneously, under the low situation of liquid level, guarantee that the exothermic body surface temperature is unlikely to too high and has influence on anti-explosion safety performance in the petrol storage tank.
Claims (3)
1. energy-saving explosion-proof electric heater for pot, have and outside jar, put in a jar interior heating arrangement, jet heat transfer unit (HTU) and flame proof box, the jet heat transfer unit (HTU) is made of a jet pump and a jet pipe that is attached thereto and puts in the jar, the inlet of jet pump is communicated with fluid reservoir by pipette, jet pipe stretches out a jar outer position electromagnetism antiscaling and descaling device is housed, heating arrangement is to be installed in the electric heating assembly that the fluid reservoir low inside puts and to be constituted by a plurality of, electric heating assembly by electric heating tube and with it suit bonded assembly electrothermal sleeve form, it is characterized in that: jet pipe is positioned at the midway location of a plurality of electric heating assemblies, and it is parallel with electric heating assembly, the control cock that is used for control jet pressure and flow size is housed on this jet pipe, it puts in jar left side of interior part, right and downside with and the end all arrange and be laid with the jet that is communicated with jet pipe and spray the suction member, the electromagnetism antiscaling and descaling device is made up of the electromagnetism antiscaling, descaling control desk that is enclosed within the magnet coil on the jet pipe and connect with it, the rating horsepower of this control desk is set in more than the 2000W, is provided with the heating control monitor unit in the flame proof box.
2. energy-saving explosion-proof electric heater for pot according to claim 1 is characterized in that: be filled with the superconduction silicone grease between two tube walls of described electric heating tube and electrothermal sleeve.
3. energy-saving explosion-proof electric heater for pot according to claim 1 is characterized in that: described heating control monitor unit comprises:
A teletransmission information monitoring device, be used for liquid temperature monitor signal, level monitoring signal, monitoring poisonous gas signal, heater current monitor signal, teletransmission control signal and execute-in-place control signal being gathered, change, being handled, and transmit at a distance, accept and control by wireless signal by signal converter;
A power control module is used for electric heating tube is carried out the control of contact pointless break-make;
A cycle control module is used for the driving power control module in zero passage cycle stepless power regulating mode, and the height of electro heat temperature is regulated and control; And overcurrent, overvoltage, phase shortage are carried out integrated protection control;
A current transformer is used for that the heater current waveform is carried out zero passage and monitors and the size of electric current is monitored, and carries out overcurrent protection;
A signal converter is connected with teletransmission information monitoring device, level sensor, liquid temperature sensor, poisonous gas detection device and operation control panel respectively by signal transmssion line, is used for the conversion and the transmission of signal;
A level sensor is installed in a jar inner bottom part, is used for oil reserve in the jar is monitored;
A liquid temperature sensor is installed in the high temperature oil liquid zone in the jar, is used to monitor the temperature on electric heating assembly surface, so that power and start and stop by teletransmission information monitoring device control heater;
A poisonous gas detection device is installed in flame proof box outside, is used to monitor the concentration of operating environment noxious gas, stops environmental pollution, guarantees safety of operation;
A teletransmission remote control equipment (RCE) can adopt mobile phone or remote controller or other telecommand equipment, is used for the acceptance, demonstration of teletransmission information monitoring device wireless signal and teletransmission information monitoring device is sent the operation of wireless signal;
An operation control panel is connected with teletransmission information monitoring device by signal transmssion line, is used for that teletransmission information monitoring device sends the demonstration of signal and to the operation control of temperature booster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100643363A CN101492114B (en) | 2009-03-06 | 2009-03-06 | Energy-saving explosion-proof electric heater for pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100643363A CN101492114B (en) | 2009-03-06 | 2009-03-06 | Energy-saving explosion-proof electric heater for pot |
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| Publication Number | Publication Date |
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| CN101492114A CN101492114A (en) | 2009-07-29 |
| CN101492114B true CN101492114B (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100643363A Expired - Fee Related CN101492114B (en) | 2009-03-06 | 2009-03-06 | Energy-saving explosion-proof electric heater for pot |
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| CN (1) | CN101492114B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910390A (en) * | 2012-10-23 | 2013-02-06 | 西安轨道交通装备有限责任公司 | Valve box of automotive tank |
| CN103935652A (en) * | 2013-01-18 | 2014-07-23 | 无锡恒业电热电器有限公司 | Electric heating system of high-temperature asphalt tank |
| CN104816898B (en) * | 2013-09-23 | 2017-03-01 | 南通大学 | Fireproof liquid storage tank rational in infrastructure |
| CN103634951B (en) * | 2013-12-10 | 2016-02-03 | 无锡格林通安全装备有限公司 | A kind of flame proof heater |
| CN105984663A (en) * | 2015-02-17 | 2016-10-05 | 王春记 | Fiber reinforced plastic crude oil storage tank with electric heating wires embedded |
| CN106347882A (en) * | 2016-08-30 | 2017-01-25 | 镇江裕太防爆电加热器有限公司 | Oil storage tank with heating device |
| CN106477199B (en) * | 2016-11-28 | 2018-11-06 | 镇江恒安防爆电器有限公司 | A kind of explosion-proof tank electric heater |
| CN107588548A (en) * | 2017-09-21 | 2018-01-16 | 巴州圣业能源技术服务有限公司 | The control method and system of inflammable and explosive gaseous state, liquid medium electric heater |
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2009
- 2009-03-06 CN CN2009100643363A patent/CN101492114B/en not_active Expired - Fee Related
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| CN101492114A (en) | 2009-07-29 |
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Granted publication date: 20101110 Termination date: 20160306 |