CN202747612U - Large heat-conducting oil cyclic heating process device - Google Patents
Large heat-conducting oil cyclic heating process device Download PDFInfo
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- CN202747612U CN202747612U CN2012204164933U CN201220416493U CN202747612U CN 202747612 U CN202747612 U CN 202747612U CN 2012204164933 U CN2012204164933 U CN 2012204164933U CN 201220416493 U CN201220416493 U CN 201220416493U CN 202747612 U CN202747612 U CN 202747612U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a large heat-conducting oil cyclic heating process device comprising a heat-conducting oil heating furnace, a burner, an air preheater, a blower, an induced draft fan, a heat-conducting oil circulating pump, a heat-conducting oil expansion groove, an oil storage groove and an oil filling pump. A heat-conducting oil outlet temperature control loop is connected between an outlet pipe of the heating furnace and an inlet pipe of the burner. A combustion-supporting air flow control loop is connected among the heat-conducting oil heating furnace, the blower and the inlet pipe of the burner. A pressure control loop, the induced draft fan, an emptying tank and a submerged pump are arranged between a heat-conducting oil inlet main pipe and a heat-conducting oil outlet main pipe. The oil storage groove is arranged on the ground, and the emptying tank is arranged under the ground and is provided with the submerged pump. An outlet is connected with the heat-conducting oil expansion groove and the oil storage groove. The large heat-conducting oil cyclic heating process device has the advantages of low operation pressure, reliable operation, high heating efficiency and accurate outlet temperature control and the like, and can be widely applied to industries such as petroleum, chemical industry, electronics, textile, printing and dyeing, foods and plastics.
Description
Technical field
The utility model relates to the heat carrier heating process, relates in particular to a kind of large-scale conduction oil circulating-heating process unit.
Background technology
The heat-conducting oil heating process unit is the widely used heat carrier heating process of the industry devices such as present oil, chemical industry, electronics, weaving, printing and dyeing, food, plastics.Traditional heat-conducting oil heating process unit mainly comprises the equipment such as heating furnace, circulating pump, expansion slot, oil storage tank, filling pump, capital equipment heating furnace wherein adopts integrated helical disk cast heating furnace more, expansion slot and oil storage tank adopt the horizontal vessel type more, although, be easy to the medium in the emptying boiler tube, but the separate unit maximum heating load can only be accomplished 1500x10
4Kcal/h makes the single device ability be subject to limitation.Progressively expansion along with process units, the thermic load that needs is also increasing, the conduction oil loadings of system is also larger, adopt traditional process unit, must adopt many heat-conducting oil furnace parallel connections, the volume of storage facilities is huge, therefore, whole heat conducting furnace plant area Area comparison after many parallel connections is large, and the cost of civil engineering structure is also higher.
In addition, the conventional heat-conduction oil heating furnace is the malleation stove, and the employing air blast overcomes the resistance of air and gas system, therefore, and the bad control of furnace pressure; Also have, the conventional heat-conduction oil expansion slot adopts the horizontal vessel type more, oil storage tank adopts horizontal vessel or flat cone roof tank more, and its floor space is larger, and according to the Supervision Code of heat carrier, expansion slot must be positioned at the above 1.5m of whole Circulation and Hot Oil Spray loop peak, therefore, for large-scale hot oil heater, expansion slot volume wherein is very large, if adopt traditional frame structure, then expense is very high.Normally the conduction oil storage tank is arranged on undergroundly in traditional hot oil heater, has strengthened civil engineering cost.
The utility model content
For above-mentioned prior art, the utility model provides a kind of large-scale conduction oil circulating-heating process unit.The utlity model has the characteristics such as operating pressure is low, reliable, the efficiency of heating surface is high, outlet temperature control is accurate, can be widely used in the industries such as oil, chemical industry, electronics, weaving, printing and dyeing, food, plastics.
In order to solve the problems of the technologies described above, the technical scheme that the large-scale conduction oil circulating-heating of the utility model process unit is achieved is: comprise heat transfer oil heater, burner, air preheater, air blast, heat conduction oil circulating pump, conduction oil expansion slot, oil storage tank and filling pump; Between the inlet tube of the outlet of described heat transfer oil heater and described burner, be connected with conduction oil outlet temperature control loop, between the inlet tube of described heat transfer oil heater, air blast and burner, be connected with the combustion air flow control loop, the conduction oil turnover house steward of described heat transfer oil heater is parallel with conduction oil delivery trunk pressure control loop, also is provided with air-introduced machine, emptying tank and submerged pump; Described oil storage tank is installed on the ground, and described emptying tank is arranged on underground, and described conduction oil expansion slot and oil storage tank all are connected with the mouth of pipe of described emptying tank, and described submerged pump is located on the emptying tank, and the outlet of described submerged pump is connected with conduction oil expansion slot, oil storage tank.
The large-scale conduction oil circulating-heating of the utility model process unit, wherein, described heat transfer oil heater is vertical tubular type negative pressure stove; Described conduction oil expansion slot places the top of described oil storage tank.
Compare with conventional heat-conduction oil circulating-heating process unit, the beneficial effects of the utility model are:
Because the heat transfer oil heater pattern in the utility model is from traditional different, the conventional heat-conduction oil heating furnace is integrated helical disk cast, include vertical or horizontal dual mode, but the separate unit maximum heating load can only be accomplished 1500x10
4Kcal/h, the heat transfer oil heater in the utility model are the vertical tubular furnace type, and its separate unit maximum heating load can reach 4000x10
4Kcal/h, for large-scale hot oil heater, the heating furnace floor space of this type of furnace is smaller.In addition, the conventional heat-conduction oil heating furnace is the malleation stove, adopt air blast to overcome the resistance of air and gas system, heat transfer oil heater in the utility model is the negative pressure stove, and by setting up air-introduced machine and furnace pressure control loop, overcome the resistance of air and gas system by the common mating reaction of air blast and air-introduced machine.
Conduction oil expansion slot in the utility model and oil storage tank are all traditional different, the conventional heat-conduction oil expansion slot adopts the horizontal vessel type more, oil storage tank adopts horizontal vessel or flat cone roof tank more, both floor spaces are larger, and according to the Supervision Code of heat carrier, the conduction oil expansion slot will be positioned at the above 1.5m of whole Circulation and Hot Oil Spray loop peak, therefore, for large-scale hot oil heater, wherein the volume of conduction oil expansion slot can be very large, if adopt traditional frame structure, then expense is very high.Therefore, conduction oil expansion slot in the utility model and the position relationship of oil storage tank are the tops that the conduction oil expansion slot is placed oil storage tank, and adopt the tower structure, so not only can save floor space, simultaneously, the body of oil storage tank 8 has also served as the support of conduction oil expansion slot, thereby has saved the cost of support frame.
Emptying tank and submerged pump have been set up in the utility model, be positioned at the emptying tank underground, conduction oil can flow by gravity back in this emptying tank, in addition, this emptying tank is during also as examination and repair system, intermediate storage tank when serving as conduction oil and moving back oil, it is smaller that the volume of this emptying tank can arrange, and so also can save in the prior device conduction oil storage tank is arranged on civil engineering cost when underground.
Description of drawings
Accompanying drawing is a kind of large-scale conduction oil circulating-heating process unit flow chart of the utility model.
Among the figure: the 1-heat transfer oil heater, the 2-burner, the 3-air preheater, the 4-air blast, the 5-air-introduced machine, the 6-heat conduction oil circulating pump, 7-conduction oil expansion slot, the 8-oil storage tank, 9-emptying tank, the 10-submerged pump, the 11-main oil pump, the 12-heat exchanger,
Gaseous-pressure indication adjustment control in the PIC001-conduction oil outlet temperature control loop,
Temperature indication adjustment control in the TIC001-conduction oil outlet temperature control loop,
Control valve in the PCV001-conduction oil outlet temperature control loop, the pressure indication adjustment control in the PIC002-furnace pressure control loop,
Fuel gas flow parameter adjustment control in the FIC003-combustion air flow control loop,
Flue gas oxygen content parameter adjustment control in the AIC003-combustion air flow control loop,
Flue gas oxygen content transmitter in the AT3-combustion air flow control loop
Pressure indication adjustment control in the PIC004-conduction oil delivery trunk pressure control loop,
Control valve in the CV004-conduction oil delivery trunk pressure control loop.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is described in further detail.
As shown in drawings, the utility model is a kind of large-scale conduction oil circulating-heating process unit, comprises heat transfer oil heater 1, burner 2, air preheater 3, air blast 4, air-introduced machine 5, heat conduction oil circulating pump 6, conduction oil expansion slot 7, oil storage tank 8, emptying tank 9, submerged pump 10, filling pump 11 and heat exchanger 12; Described heat transfer oil heater 1 is vertical tubular type negative pressure stove, described oil storage tank 8 is installed on the ground, described emptying tank 9 is arranged on underground, and described conduction oil expansion slot 7 is connected with oil storage tank and all is connected with the mouth of pipe of described emptying tank 9, and the outlet of described submerged pump 10 is connected with conduction oil expansion slot 7, oil storage tank 8.
Be provided with following control loop in the whole process unit:
Between the inlet tube of the outlet of described heat transfer oil heater and described burner 2, be connected with conduction oil outlet temperature control loop, the pipeline shown in two-wire in the accompanying drawing; Be provided with gaseous-pressure indication adjustment control PIC001 and temperature indication adjustment control TIC001 in this conduction oil outlet temperature control loop, be provided with control valve PCV001 at the fuelgas pipeline that leads to burner 2 imports.
Between the inlet tube of described heat transfer oil heater 1, air blast 4 and burner, be connected with the combustion air flow control loop, as in the accompanying drawing with the pipeline shown in the circle straight line; Be provided with fuel gas flow parameter adjustment control FIC-003, flue gas oxygen content parameter adjustment control AIC003 and flue gas content transmitter AT3 in this combustion air flow control loop;
The conduction oil turnover house steward of described heat transfer oil heater 1 is parallel with conduction oil delivery trunk pressure control loop, the pipeline shown in dotted line in the accompanying drawing; Be provided with pressure indication adjustment control PIC004 and control valve CV004 in this conduction oil delivery trunk pressure control loop;
Be connected with the furnace pressure control loop between described heat conducting furnace heating furnace 1 and the described air-introduced machine 5, as in the accompanying drawing with the pipeline shown in short stroke of straight line of diclinic; Be provided with pressure indication adjustment control PIC002 in this furnace pressure control loop.
Between described conduction oil expansion slot 7, oil storage tank 8 and emptying tank 9, be connected with overflow line.
The course of work of the large-scale conduction oil circulating-heating of the utility model process unit is: utilize heat transfer oil heater 1 that conduction oil is directly heated, and the conduction oil that will be undertaken after forced circulation will heat by heat conduction oil circulating pump 6 is transported to the hot equipment of using, reheat by getting back to hot oil furnace with hot equipment oil-out again, thereby form the process unit of a complete cycle.
At first, heat medium (conduction oil) is discharged to the oil storage tank 8 from oil drum or tank car by filling pump 11, then by the tube connector between oil storage tank 8 and the emptying tank 9, conduction oil flows automatically in the emptying tank 9, by the submerged pump 10 that is installed on the emptying tank 9 conduction oil is transported in the conduction oil expansion slot 7, again by conduction oil expansion slot 7 oiling in the whole system, in the system behind the whole falling heat-transfer oil of hot oil line, start heat conduction oil circulating pump 6, so that conduction oil circulates between user's (heat exchanger 12) and heat transfer oil heater 1, conduction oil absorbs the fuel combustion liberated heat in heat transfer oil heater 1, be transported to and return heat absorption in the heat transfer oil heater 1 in the heat exchanger 12 after the heat release, form one for thermal cycle.
In order to improve the thermal efficiency of heat transfer oil heater 1, be provided with air preheater 3 in fume side, improve the thermal efficiency, fuel saving by reducing exhaust gas temperature.
When system maintenance need to move back oil, the deep fat in the equipment Pipe-Line was got back in the emptying tank 9 by flow by gravity first, was pumped in the oil storage tank 8 by the submerged pump 10 on the emptying tank 9 to store again.
The function in major control loop is as follows in the utility model:
Conduction oil outlet temperature control loop, by the control valve PCV-001 on the Cas PID regulation fuelgas pipeline of conduction oil outlet temperature indication adjustment control TIC-001 and gaseous-pressure indication adjustment control PIC-001 composition, thereby control enters the fuel quantity of burner 2, realizes the adjusting of heat transfer oil heater 1 thermic load.
Combustion air flow control loop: the controllable register that forms 4 imports of Cas PID regulation air blast by flue gas oxygen content parameter adjustment control AIC003 and fuel gas flow parameter adjustment control FIC-003, thereby the air capacity that control enters burner 2 reduces energy consumption when guaranteeing full combustion of fuel.
Furnace pressure control loop: indicate the inlet adjusting baffle plate of the signal controlling air-introduced machine 5 of adjustment control PIC-002 by furnace pressure, thereby guarantee the safe operation under little negative pressure of heat transfer oil heater 1 burner hearth.
Conduction oil delivery trunk pressure control loop: by the pressure indication adjustment control PIC-004 of conduction oil delivery trunk and the bypass flow between the control valve CV004 control conduction oil turnover house steward, the conduction oil pressure of stable output.
Although the above is described the utility model in conjunction with figure; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that do not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (3)
1. one kind large-scale conduction oil circulating-heating process unit comprises heat transfer oil heater (1), burner (2), air preheater (3), air blast (4), heat conduction oil circulating pump (6), conduction oil expansion slot (7), oil storage tank (8) and filling pump (11); Between the inlet tube of the outlet of described heat transfer oil heater and described burner (2), be connected with conduction oil outlet temperature control loop, between the inlet tube of described heat transfer oil heater (1), air blast (4) and burner (2), be connected with the combustion air flow control loop, the conduction oil turnover house steward of described heat transfer oil heater (1) is parallel with conduction oil delivery trunk pressure control loop, it is characterized in that:
Also be provided with air-introduced machine (5), emptying tank (9) and submerged pump (10); Be connected with the furnace pressure control loop between described heat conducting furnace heating furnace (1) and the described air-introduced machine (5); Described oil storage tank (8) is installed on the ground, described emptying tank (9) is arranged on underground, described conduction oil expansion slot (7) is connected 8 with oil storage tank) all the mouth of pipe with described emptying tank (9) be connected, described submerged pump (10) is located on the emptying tank (9), and the outlet of described submerged pump (10) is connected 8 with conduction oil expansion slot (7) with oil storage tank) be connected.
2. described large-scale conduction oil circulating-heating process unit according to claim 1 is characterized in that, described heat transfer oil heater (1) is vertical tubular type negative pressure stove.
3. described large-scale conduction oil circulating-heating process unit according to claim 1 is characterized in that, described conduction oil expansion slot (7) places the top of described oil storage tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204164933U CN202747612U (en) | 2012-08-21 | 2012-08-21 | Large heat-conducting oil cyclic heating process device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204164933U CN202747612U (en) | 2012-08-21 | 2012-08-21 | Large heat-conducting oil cyclic heating process device |
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| Publication Number | Publication Date |
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| CN202747612U true CN202747612U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012204164933U Expired - Lifetime CN202747612U (en) | 2012-08-21 | 2012-08-21 | Large heat-conducting oil cyclic heating process device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818366A (en) * | 2012-08-21 | 2012-12-12 | 天津辰创环境工程科技有限责任公司 | Large heat-conducting-oil circulation heating process device |
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2012
- 2012-08-21 CN CN2012204164933U patent/CN202747612U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818366A (en) * | 2012-08-21 | 2012-12-12 | 天津辰创环境工程科技有限责任公司 | Large heat-conducting-oil circulation heating process device |
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| GR01 | Patent grant | ||
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Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |