CN103968150B - A kind of gas pipeline cecum equipment heater - Google Patents
A kind of gas pipeline cecum equipment heater Download PDFInfo
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- CN103968150B CN103968150B CN201410194194.3A CN201410194194A CN103968150B CN 103968150 B CN103968150 B CN 103968150B CN 201410194194 A CN201410194194 A CN 201410194194A CN 103968150 B CN103968150 B CN 103968150B
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- electrothermal tube
- gas pipeline
- temperature
- valve body
- cecum
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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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
- F16L59/026—Mattresses, mats, blankets or the like
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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
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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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
- F16L59/08—Means for preventing radiation, e.g. with metal foil
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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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/161—Housings for valves, tee pieces, or the like
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- 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
- H05B3/40—Heating elements having the shape of rods or tubes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of gas pipeline cecum equipment heater, comprise the valve body that air inlet and gas outlet are set, vacuum layer is set in valve body wall, at valve outer wall, reflecting layer is set, be provided with heat insulating coating at valve interior wall, on heat insulating coating, be provided with heating arrangements, heating arrangements comprises electrothermal tube and fixed component, and the controller of heating arrangements is connected with the monitoring temperature member that comprises controller and temperature sensor; The present invention is provided with heat insulating coating at valve interior wall, vacuum layer is set in body wall, in sidewall surfaces, reflecting layer is set, reduce the lost too much phenomenon of valve body self heat, heating arrangements directly forms high-temperature region in valve body, has effectively avoided excessive causing of cecum temperature drop to occur that condensation, its operating temperature are controlled at 320～950 DEG C in gas pipeline, break through traditional valve body temperature heated perimeter, well met the technique needs of high-temperature dust removal.
Description
Technical field
The present invention relates to pipeline heating technical field, particularly a kind of gas pipeline cecum equipment heater.
Background technology
ChinaOil, natural gas resource shortage, coal will be the topmost primary energy of China quite over a long time in future. but coal conversion utilizes and has problems and challenge in process, as low in comprehensive utilization ratio, environmental pollution serious, shortage of water resources and CO2 emissions large etc. therefore, development of coal high-efficiency cleaning comprehensive utilization technique is realized the inevitable choice that energy-saving and emission-reduction are China's energy industry development. therefore insider continually develops the efficient technology of utilizing and extracting of product of coal, and an important link is carried and has been controlled in the insulation to next link of the high-temperature dusty gas wherein coal gasifier being produced. and the control of high-temperature gas system pipeline break-make arranges valve body normally after pipeline intersects or near mouthful end, this duct section communicating valve bodily form cecutiency end structure, now in cecum section, high temperature fluid will stay cool, inevitable along with heat escapes and energy dissipation, this cecum section inner fluid temperature potential must reduce, when containing in high-temperature gas, temperature key element is required strict time, while particularly containing coal tar composition in dusty gas, in the time that running into the cryogenic gas of cecum position, high-temperature gas is easy to produce coal tar condensation, be bonded at pipeline or valve inner, not only cause the wasting of resources, and can cause valve clamping stagnation to damage, and the Insulation of valve body structure employing at present is not a lot, also have part Related product in order to improve its heat-insulating property at outer covering and heat insulating coating, even if but be equipped with heater for pipeline and the valve body outside of conveying high-temperature gas in heat insulating coating, its internal temperature still can greatly differ from each other with the heat insulating coating temperature of heater side, sometimes even there is through overtesting the temperature difference that exceedes 300 degrees Celsius, and at present and have no new heating, disclosing of heat preservation technology, therefore, the insulation and the heater that design a kind of cecum structure that is applicable to conveying high-temperature gas seem necessary.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of good seal, failure rate is low, Heat preservation effect good, be applicable to carry high temperature to contain the gas pipeline cecum equipment heater of burnt gas, to ensure high-temperature gas composition and the stable in properties through described gas pipeline cecum equipment.
For realizing the technical scheme that object of the present invention adopts be: a kind of gas pipeline cecum equipment heater, comprise the valve body that air inlet and gas outlet are set, described valve interior wall is provided with heat insulating coating, in described valve body wall, vacuum layer is set, on described heat insulating coating, be provided with heating arrangements, described heating arrangements comprises electrothermal tube and fixed component, and the end of described electrothermal tube passes described valve body.
Described heating arrangements is set to some groups of electrothermal tubes, described each group of electrothermal tube between-line spacing layout.
Described electrothermal tube comprises electrothermal tube shell, resistance wire and inserts, and described electrothermal tube outer casing end arranges sealed ceramic, connection bolt and nut.
Described inserts is magnesium oxide sand and/or alumina powder.
Described fixed component comprises the shackle member that is flexibly connected described electrothermal tube, and described shackle member is partially submerged into described heat insulating coating.
Described electrothermal tube is arranged in the groove that digs system on described heat insulating coating, and described groove both sides arrange described fixed component, and institute's fixed component is shackle member or backing pin.
Described groove lower inside arranges arc-shaped ring groove.
Described heat insulating coating is refractory mortar and/or alumina silicate fiber felt.
Described alumina silicate fiber felt is set to multilayer, and two-layer alumina silicate fiber felt seam crossing does not overlap.
The controller of described heating arrangements is connected with monitoring temperature member, and described monitoring temperature member comprises controller and is arranged on the temperature sensor of valve inner.
Resistance wire in described electrothermal tube is set to the helical form of different winding pitchs.
Resistance wire in described electrothermal tube also can be electric hot plate or electric heating pipe fitting.
Described valve outer wall arranges reflecting layer, and described reflecting layer is silver or magnesium oxide coating.
The operating temperature of gas pipeline cecum equipment heater of the present invention is controlled at 320～950 DEG C.
Further, the operating temperature of described gas pipeline cecum equipment heater is controlled at 450～680 DEG C.
The present invention adopts valve body wall that the insulation valve body of vacuum layer is set, in outer wall surface, reflecting layer is set, and at inwall, heat insulating coating is set, compared with heat insulating coating being set with traditional outside covering of valve body, not only make itself to become an attemperator, and at outer wall, reflecting layer is set and makes it can reflect the heat of valve internal radiation, reduce the thermal loss that self heat radiation causes, at inwall, heat insulating coating is set simultaneously, avoid inwall directly to contact with high-temperature gas, make inwall remain on lower temperature, reduce the thermal loss of high-temperature gas, at valve inner, heater is set, avoid the heat insulating coating forming due to valve body wall, these three layers of heat-insulation layers of vacuum layer and reflecting layer, the phenomenon of the external heat difficulty causing, the present invention is provided with heating arrangements on described heat insulating coating, thermal source is positioned at valve inner, heat can be directly passed to the gas in valve body, makes to keep higher temperature effectively to avoid the excessive composition that causes the easy condensation in gas pipeline of cecum temperature drop to occur condensation in cecum valve body.
Concrete described heating arrangements comprises electrothermal tube and fixed component, by described fixed component, electrothermal tube is fixed on valve interior wall, described electrothermal tube is generally selected roundabout overlapping U-shaped layout, also can present helical form, ensure that described electrothermal tube presents certain radian along valve interior wall and makes it not affect valve rod and operate normally, the end of described electrothermal tube passes described valve body in order to connect external power source, wherein said electrothermal tube comprises the electrothermal tube shell of stainless steel or alloy material, resistance wire and inserts, described inserts is magnesium oxide sand and/or alumina powder, not only stability is strong, there is good insulating effect, and the outside release heat of can well conducting heat, described electrothermal tube outer casing end arranges sealed ceramic, connection bolt and nut, utilize described sealed ceramic through described valve body, adiabatic insulation, and the inner contact resistance silk of described connecting bolt outer end compresses by described nut, realizing the termination of described electrothermal tube fixes, the layout of described electrothermal tube in valve body can be set to various ways as required: wherein one is, described electrothermal tube and described heat insulating coating maintain a certain distance, the front end of described shackle member is flexibly connected electrothermal tube, described shackle member end section embeds in described heat insulating coating, realizes the layout of described electrothermal tube with this, another kind of form is, described electrothermal tube is arranged in the groove that digs system on described heat insulating coating, described groove both sides arrange described fixed component, institute's fixed component is shackle member or backing pin, further described groove lower inside arranges arc-shaped ring groove, described electrothermal tube is placed in groove and is displaced downwardly in described arc-shaped ring groove, effectively prevents the slippage of described electrothermal tube and gets loose, and arrangement convenience is reliable, described heat insulating coating can be for laying alumina silicate fiber felt in the middle of refractory mortar or described refractory mortar, also can be the alumina silicate fiber felt that multilayer is arranged, two-layer alumina silicate fiber felt seam crossing does not overlap, prevent that between gap, heat loss is too fast, form stable heat insulation effect, and adopt alumina silicate fiber felt that multilayer arranges as heat insulating coating time described in electrothermal tube can be arranged between the two-layer described alumina silicate fibre of outermost, the fixing difficulty of described electrothermal tube reduces greatly, further, in order to realize different temperatures and firing rate needs, described heating arrangements is set to the electrothermal tube of some groups and between-line spacing layout, can be derived multiple duty by controlling described electrothermal tube conduction time and quantity, realize different temperatures, needs in the high-temperature gas course of conveying of composition, improve the adaptability using, and resistance wire in described electrothermal tube can be set to the helical form of different winding pitchs, realize different parts quantity of heat production slightly different, for valve body different parts, make up the impact of the heat radiation inequality of its structural design appearance, resistance wire in described electrothermal tube also can be electric hot plate or electric heating pipe fitting, diversification of forms, preparation technology's difference, as long as meet heating effect, in order to realize intelligent temperature control, the controller of heating arrangements of the present invention is connected with monitoring temperature member, described monitoring temperature member comprises controller and is arranged on the temperature sensor of valve inner, carry out temperature detection by described temperature sensor, controller connects the control section of described heater, the intelligent temperature of realizing in threshold range regulates, the operating temperature of gas pipeline cecum equipment heater of the present invention is controlled at 320～950 DEG C, and break through traditional valve body temperature heated perimeter, well meet the technique needs of high-temperature dust removal, make the higher temperature of maintenance in cecum valve body, effectively avoid the excessive composition that causes the easy condensation in gas pipeline of cecum temperature drop to occur condensation, preferably, the operating temperature of described gas pipeline cecum equipment heater is controlled at 450～680 DEG C, in this temperature section, carry through components unchanged in the high-temperature gas of described valve body position, making product property for this technique of raising stablizes significant.
The present invention is directed to and when high-temperature gas is carried, exist cecum on pipeline to be prone to the temperature difference larger, the particularly serious technical barrier of valve body position heat loss, according to process requirements, new technical scheme is proposed, not only valve body itself is improved, in its outer wall, vacuum layer is set, make to form the vacuum interlayer of heat radiation, and in outer wall surface, reflecting layer is set, make it can form insulation reflecting layer, further reduce scattering and disappearing of heat, and at valve interior wall, heat insulating coating is set, make valve body self possess the function of good insulation, then select the form of heating and thermal insulation in valve body, the control of temperature and the technique effect of excellent sealing in valve body are realized, and the location problem of electric heater unit is made to corresponding Technology design, in addition the controller of described heating arrangements is connected with monitoring temperature member, be convenient to realize the Based Intelligent Control of temperature, be specially adapted to the gas transport control that contains easy condensation composition in high-temperature gas, and life of equipment is long, loss is little, security performance is high, maximum technique effect and economic benefit under limited resources supplIes, are realized, have good value for applications. the electric heating tube of heating arrangements of the present invention also can be arranged on pipeline or the adpting flange inside of cecum simultaneously, forms better cecum equipment heater, obtains more stable technique effect.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the vertical profile structural representation that the present invention executes example one gas pipeline cecum equipment heater;
Fig. 2 is the cross-sectional view of the embodiment of the present invention one heating tube;
Fig. 3 is the embodiment of the present invention two heating tube schematic layout patterns;
Fig. 4 is the heating tube schematic layout pattern of the embodiment of the present invention three;
Fig. 5 is the heating tube schematic layout pattern of the embodiment of the present invention five.
Detailed description of the invention
Adopt the valve of four groups of each 100 same model, respectively different parts improved and carry out contrast test, average result of the test is as follows:
| Energy consumption | Temperature retention time | |
| The present invention | 1 | 9 |
| Interior insulation+interior heating | 5 | 5 |
| Outer insulation+external heat | 9 | 4 |
| Outer insulation+interior heating | 6 | 4 |
| Interior insulation+external heat | 9 | 6 |
Note: the synthermal required energy consumption of stable phase, adopt 1-10 to represent, 1 represents energy consumption minimum, 10 represent energy consumption maximum; Do not carry out outside energy input and maintain time of limiting temperature, adopt 1-10 to represent, 1 represents shortest time, and 10 represent that the time is the longest.
Can be found out by upper group of data, with respect to comparative example, not only temperature retention time is long but also energy consumption is very low in the present invention; The mode of the interior insulation+interior heating of employing arranges heater at inwall and heats, it keeps temperature-time and energy consumption all between mean value, make its general performance straight and narrow, temperature retention time and energy consumption all show generally, but combination property is better than other several modes; Adopt the mode of outer insulation+external heat, at outer wall, heater is set, owing to adopting the mode of external heat, increase the heat valve outer wall temperature rising simultaneously shedding to outside and also brought energy consumption, outer heat preserving mode transmits formation heat between high-temperature gas and body wall, increase the energy consumption of high-temperature gas, reduced temperature retention time. The equal consumed energy of mode of outer insulation+interior heating and interior insulation+external heat is too much and heat insulation effect is undesirable.
The present invention is just incubated in very cleverly and adds on the basis of interior heating original, and valve body self is carried out to new improvement, vacuum layer is set in outer wall, and at outer wall, reflecting layer is set, make valve body form with extraneous the vacuum layer that heat is transmitted, and reflect heat energy in the mode that outer wall arranges reflecting layer, make it reduce 60% with respect to prior art energy consumption, and holding time more than 60%, effect is very outstanding, does lower case study on implementation on the basis in conjunction with above-mentioned advantage.
Embodiment mono-
As depicted in figs. 1 and 2, a kind of gas pipeline cecum equipment heater, comprise the valve body 1 that air inlet and gas outlet are set, described valve body 1 is selected the seal closure valve body of cylindrical tube shape structure, vacuum layer 9 is set in described body wall, described sidewall arranged outside reflecting layer 10, it adopts silver as coating, described valve body 1 inwall is provided with heat insulating coating 2, described heat insulating coating 2 is refractory mortar, on described heat insulating coating 2, be provided with heating arrangements, described heating arrangements comprises electrothermal tube 3 and fixed component, the end of described electrothermal tube 3 passes described valve body 1, described electrothermal tube 3 presents the U-shaped structure of roundabout overlapping docking, described electrothermal tube 3 presents certain radian along valve body 1 inwall to be made it not affect valve rod and operates normally, and described electrothermal tube 3 maintains a certain distance with described heat insulating coating 2, described fixed component is the shackle member 4 that front end is flexibly connected electrothermal tube 3, described shackle member 4 end sections embed in described heat insulating coating 2.
Described electrothermal tube 3 comprises electrothermal tube shell 3-1, resistance wire 3-2 and inserts 3-3, described electrothermal tube shell 3-1 end arranges sealed ceramic 3-4, connection bolt 3-5 and nut 3-6, described inserts 3-3 is a kind of or mixing in magnesium oxide sand, alumina powder, mixed proportion does not need particular determination, can select as required 1:0.5-2.
Described heating arrangements is also provided with electrical heating controller 5; described electrical heating controller 5 is connected with monitoring temperature member 6; and on described electrical heating controller 5, be serially connected with protection switch K and prevent short circuit risk; described monitoring temperature member 6 comprises the temperature sensor that is arranged on valve body 1 inside, and described temperature sensor is electrically connected described electrical heating controller 5.
Embodiment bis-
As shown in Figure 2,3, be with the difference of embodiment mono-: described heating arrangements is set to two groups of group electrothermal tubes 3, number in the figure is A, B, described electrothermal tube 3 between-line spacing horizontal layout, described shackle member 4 is head of a bed pin or bolt fixed form, and described some groups of electrothermal tubes 3 are serially connected with respectively gauge tap.
Embodiment tri-
As shown in Fig. 1,4, be with the difference of embodiment mono-or two: described electrothermal tube 3 is arranged in the groove 7 that digs system on described heat insulating coating 2, described groove 7 lower inside arrange arc-shaped ring groove (dotted portion demonstration), in order to place electrothermal tube 3, described groove 7 both sides arrange described fixed component, institute's fixed component is the double end backing pin 8 of shackle member 4 or rotation, selects double end backing pin 8 can block upper and lower two electrothermal tubes 3 herein simultaneously; Described electrothermal tube place is through vacuum layer 9, and vacuum layer 9 places arrange designated lane and prevent from causing vacuum layer air inlet, makes vacuum layer insulation failure; In outer wall surface, reflecting layer 10 is set, increases heat insulation effect.
Embodiment tetra-
Be with the difference of embodiment mono-or two: described electrothermal tube 3 can present helical form around valve body 1 inwall, and in heat dissipation capacity large part, as joint location, setting more intensive.
Embodiment five
As shown in Figure 5, be with the difference of embodiment mono-or two: described electrothermal tube 3 presents the roundabout overlapping U-shaped structure of docking, and U-shaped structure is arranged up and down.
Embodiment six
Be with the difference of embodiment tri-: described valve outer wall place arranges air manometer 11, monitor the vacuum of valve vacuum layer 9 with this, improve the heat insulation function of valve body.
Embodiment seven
Be from the difference of embodiment mono-or two: the resistance wire 3-2 in described electrothermal tube 3 is set to the helical form of different winding pitchs.
Embodiment eight
Be with the difference of embodiment mono-or two: the resistance wire 3-2 in described electrothermal tube 3 also can be electric hot plate or electric heating pipe fitting.
In above-described embodiment, the operating temperature of gas pipeline cecum equipment heater of the present invention is controlled at 320～950 DEG C, utilizes power calculation experience or realizes monitoring temperature by monitoring temperature member, and the work reference quantity of heater is provided.
Further, the operating temperature of described gas pipeline cecum equipment heater is controlled at 450～680 DEG C.
The present invention arranges vacuum layer in body wall, at sidewall arranged outside reflecting layer, and at inwall, heat insulating coating is set, compared with heat insulating coating being set with traditional outside covering of valve body, not only self possesses good heat insulating effect, and it arranges heat insulating coating at inwall and makes it can inwall and high-temperature gas is isolated, significantly reduce the heat transmission of high-temperature gas and sidewall, reduce the heat loss how and rapidly phenomenon of valve body as radiating element itself, also avoided cannot realizing the effective heating of the heater arranging in external insulation coating to valve inner because valve body wall forms interlayer, on heat insulating coating of the present invention, be provided with heating arrangements, thermal source is positioned at valve inner, heat can be directly passed to the gas in valve body, because heat-insulating property is good, the heat of its generation is almost all absorbed by the gas in valve body, make to keep higher temperature effectively to avoid the excessive composition that causes the easy condensation in gas pipeline of cecum temperature drop to occur condensation in cecum valve body.
Concrete described heating arrangements comprises electrothermal tube and fixed component, by described fixed component, electrothermal tube is fixed on valve interior wall, described electrothermal tube is generally selected roundabout overlapping U-shaped layout, also can present helical form, ensure that described electrothermal tube presents certain radian along valve interior wall and makes it not affect valve rod and operate normally, the end of described electrothermal tube passes described valve body in order to connect external power source, wherein said electrothermal tube comprises the electrothermal tube shell of stainless steel or alloy material, resistance wire and inserts, described inserts is magnesium oxide sand and/or alumina powder, not only stability is strong, there is good insulating effect, and the outside release heat of can well conducting heat, described electrothermal tube outer casing end arranges sealed ceramic, connection bolt and nut, utilize the vacuum layer passage of described sealed ceramic through described valve body, adiabatic insulation, and the inner contact resistance silk of described connecting bolt outer end compresses by described nut, realizing the termination of described electrothermal tube fixes, the layout of described electrothermal tube in valve body can be set to various ways as required: wherein one is, described electrothermal tube and described heat insulating coating maintain a certain distance, the front end of described shackle member is flexibly connected electrothermal tube, described shackle member end section embeds in described heat insulating coating, realizes the layout of described electrothermal tube with this, another kind of form is, described electrothermal tube is arranged in the groove that digs system on described heat insulating coating, described groove both sides arrange described fixed component, institute's fixed component is shackle member or backing pin, further described groove lower inside arranges arc-shaped ring groove, described electrothermal tube is placed in groove and is displaced downwardly in described arc-shaped ring groove, effectively prevents the slippage of described electrothermal tube and gets loose, and arrangement convenience is reliable, described heat insulating coating can be for laying alumina silicate fiber felt in the middle of refractory mortar or described refractory mortar, also can be the alumina silicate fiber felt that multilayer is arranged, two-layer alumina silicate fiber felt seam crossing does not overlap, prevent that between gap, heat loss is too fast, form stable heat insulation effect, and adopt alumina silicate fiber felt that multilayer arranges as heat insulating coating time described in electrothermal tube can be arranged between the two-layer described alumina silicate fibre of outermost, the fixing difficulty of described electrothermal tube reduces greatly, further, in order to realize different temperatures and firing rate needs, described heating arrangements is set to the electrothermal tube of some groups and between-line spacing layout, can be derived multiple duty by controlling described electrothermal tube conduction time and quantity, realize different temperatures, needs in the high-temperature gas course of conveying of composition, improve the adaptability using, and resistance wire in described electrothermal tube can be set to the helical form of different winding pitchs, realize different parts quantity of heat production slightly different, for valve body different parts, make up the impact of the heat radiation inequality of its structural design appearance, resistance wire in described electrothermal tube also can be electric hot plate or electric heating pipe fitting, diversification of forms, preparation technology's difference, as long as meet heating effect, electrothermal tube is being arranged and carried out valve body self being improved on improved basis simultaneously, make himself to possess very good heat-insulating property, at inwall, heat insulating coating is set and makes it can ensure that high-temperature gas does not contact with body wall, reduced the consumption of valve body self to energy, vacuum layer is set in body wall makes to have formed insulating layer between body wall inner surface and sidewall outer surface simultaneously, not only having reduced valve intimate heat scatters and disappears to the external world, also make extraneous low temperature environment can not draw by valve body the heat of high-temperature gas, further improve the heat-insulating property of valve body, at its sidewall outer surface, reflecting layer is set and makes it can reflect the heat that valve inner gives off, further improved the heat insulation function of valve body self, guarantee to make the high-temperature gas in valve body be in excellent thermal insulation performance and possess in temperature controlled high-temperature valve, in order to realize intelligent temperature control, the controller of heating arrangements of the present invention is connected with monitoring temperature member, described monitoring temperature member comprises controller and is arranged on the temperature sensor of valve inner, carry out temperature detection by described temperature sensor, controller connects the control section of described heater, the intelligent temperature of realizing in threshold range regulates, the operating temperature of gas pipeline cecum equipment heater of the present invention is controlled at 320～950 DEG C, and break through traditional valve body temperature heated perimeter, well meet the technique needs of high-temperature dust removal, make the higher temperature of maintenance in cecum valve body, effectively avoid the excessive composition that causes the easy condensation in gas pipeline of cecum temperature drop to occur condensation, preferably, the operating temperature of described gas pipeline cecum equipment heater is controlled at 450～680 DEG C, in this temperature section, carried the interior components unchanged of high-temperature gas of described valve body position, making product property for this technique of raising stablizes significant.
While the present invention is directed to high-temperature gas conveying, on pipeline, existing cecum valve is prone to because the temperature difference is larger, cause the serious technical barrier of valve body position heat loss, according to process requirements, new technical scheme is proposed, select in valve body and heat and arrange under the form of heat-insulation layer, valve body self is improved, realize the technique effect of control to temperature and excellent sealing insulation, and the location problem of electric heater unit is made to corresponding Technology design, in addition the controller of described heating arrangements is connected with monitoring temperature member, be convenient to realize the Based Intelligent Control of temperature, be specially adapted to the gas transport control that contains easy condensation composition in high-temperature gas, and life of equipment is long, loss is little, security performance is high, maximum technique effect and economic benefit under limited resources supplIes, are realized, have good value for applications. the electric heating tube of heating arrangements of the present invention also can be arranged on pipeline or the adpting flange inside of cecum simultaneously, forms better cecum equipment heater, obtains more stable technique effect.
Claims (10)
1. a gas pipeline cecum equipment heater, comprise the valve body that air inlet and gas outlet are set, it is characterized in that: described valve interior wall is provided with heat insulating coating, in described valve body wall, vacuum layer is set, on described heat insulating coating, be provided with heating arrangements, described heating arrangements comprises electrothermal tube and fixed component, and the end of described electrothermal tube passes described valve body.
2. gas pipeline cecum equipment heater as claimed in claim 1, it is characterized in that: described heating arrangements is set to some groups of electrothermal tubes, described each group of electrothermal tube between-line spacing layout, described electrothermal tube comprises electrothermal tube shell, resistance wire and inserts, described electrothermal tube outer casing end arranges sealed ceramic, connection bolt and nut, and described inserts is magnesium oxide sand and/or alumina powder; Described fixed component comprises the shackle member that is flexibly connected described electrothermal tube, and described shackle member is partially submerged into described heat insulating coating.
3. gas pipeline cecum equipment heater as claimed in claim 1, is characterized in that: described valve outer wall arranges reflecting layer, described reflecting layer is silver or magnesium oxide coating.
4. gas pipeline cecum equipment heater as claimed in claim 1, is characterized in that: described electrothermal tube is arranged in the groove that digs system on described heat insulating coating, described groove both sides arrange described fixed component, and institute's fixed component is shackle member or backing pin.
5. gas pipeline cecum equipment heater as claimed in claim 4, is characterized in that: described groove lower inside arranges arc-shaped ring groove.
6. gas pipeline cecum equipment heater as described in claim 1 or 4, is characterized in that: described heat insulating coating is refractory mortar and/or alumina silicate fiber felt.
7. gas pipeline cecum equipment heater as claimed in claim 1, is characterized in that: the controller of described heating arrangements is connected with monitoring temperature member, and described monitoring temperature member comprises controller and is arranged on the temperature sensor of valve inner.
8. gas pipeline cecum equipment heater as claimed in claim 1, is characterized in that: the resistance wire in described electrothermal tube is set to the helical form of different winding pitchs.
9. gas pipeline cecum equipment heater as claimed in claim 1, is characterized in that: the operating temperature of described gas pipeline cecum equipment heater is controlled at 320～950 DEG C.
10. gas pipeline cecum equipment heater as described in claim 1 or 9, is characterized in that: the operating temperature of described gas pipeline cecum equipment heater is controlled at 450～680 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194194.3A CN103968150B (en) | 2014-05-09 | 2014-05-09 | A kind of gas pipeline cecum equipment heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194194.3A CN103968150B (en) | 2014-05-09 | 2014-05-09 | A kind of gas pipeline cecum equipment heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968150A CN103968150A (en) | 2014-08-06 |
| CN103968150B true CN103968150B (en) | 2016-05-25 |
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| CN104466625A (en) * | 2014-12-03 | 2015-03-25 | 西北核技术研究所 | Heating type XeF2 gas mixing generation device |
| CN106895261A (en) * | 2017-02-22 | 2017-06-27 | 峨眉山佳洁纸制品有限责任公司 | Cyclic steam conveys energy conserving system |
| CN109029037A (en) * | 2018-06-27 | 2018-12-18 | 芜湖盘云石磨新能源科技有限公司 | A kind of molten salt energy-storage power station |
| CN109640423B (en) * | 2019-01-17 | 2024-05-14 | 克拉玛依君鼎机电设备有限公司 | Explosion-proof electric heater unit of pipeline automatic temperature control |
| CN115212837A (en) * | 2022-07-26 | 2022-10-21 | 西安交通大学 | Ammonium bicarbonate high-temperature high-pressure pyrolysis gasification experimental device |
| CN115149030B (en) * | 2022-08-09 | 2023-05-02 | 广东佛燃科技有限公司 | Gas electric heating device for solid oxide electric pile test |
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| CN2519098Y (en) * | 2001-12-26 | 2002-10-30 | 哈尔滨第四塑料厂 | Anti-corrosion and thermal-insulation sealing device for prefabricated insulated pipeline compensator |
| CN201610943U (en) * | 2010-03-03 | 2010-10-20 | 郑州华泰特阀有限公司 | Temperature preservation jacketed valve and temperature preservation valve body thereof |
| CN203010207U (en) * | 2012-11-26 | 2013-06-19 | 量子科技（中国）有限公司 | Raw oil pipeline heater |
| CN203880217U (en) * | 2014-05-09 | 2014-10-15 | 河南龙成煤高效技术应用有限公司 | Equipment heating device for blind end of gas conveying pipeline |
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| JP3924867B2 (en) * | 1997-10-15 | 2007-06-06 | Ｓｍｃ株式会社 | Uniform heating device for high vacuum valve body |
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Patent Citations (4)
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|---|---|---|---|---|
| CN2519098Y (en) * | 2001-12-26 | 2002-10-30 | 哈尔滨第四塑料厂 | Anti-corrosion and thermal-insulation sealing device for prefabricated insulated pipeline compensator |
| CN201610943U (en) * | 2010-03-03 | 2010-10-20 | 郑州华泰特阀有限公司 | Temperature preservation jacketed valve and temperature preservation valve body thereof |
| CN203010207U (en) * | 2012-11-26 | 2013-06-19 | 量子科技（中国）有限公司 | Raw oil pipeline heater |
| CN203880217U (en) * | 2014-05-09 | 2014-10-15 | 河南龙成煤高效技术应用有限公司 | Equipment heating device for blind end of gas conveying pipeline |
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