CN112113198A - Heat conduction oil furnace device capable of achieving steam heating and accurate temperature control - Google Patents
Heat conduction oil furnace device capable of achieving steam heating and accurate temperature control Download PDFInfo
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- CN112113198A CN112113198A CN202011102327.1A CN202011102327A CN112113198A CN 112113198 A CN112113198 A CN 112113198A CN 202011102327 A CN202011102327 A CN 202011102327A CN 112113198 A CN112113198 A CN 112113198A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
- F22B1/167—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour using an organic fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- Control Of Temperature (AREA)
Abstract
The invention discloses a steam heating heat-conducting oil furnace device capable of accurately controlling temperature, which comprises an expansion oil tank, wherein the upper end of the expansion oil tank is respectively provided with a hole, an emptying pipe and an oil supplementing port, the lower end of the expansion oil tank is respectively provided with a first oil drain valve and a drain valve, and the expansion oil tank is respectively connected with a circulating pump, a first pipeline, a second pipeline, a gas-liquid separator, an electric heater, a circulating outlet pipe, a cooling heat exchanger, a cooling inlet pipeline, a cooling outlet pipeline, a circulating inlet pipe, a steam heat exchanger and a steam inlet pipeline through a plurality of pipelines. The invention has the beneficial effects that: the temperature control precision can reach +/-0.1 ℃, the temperature control of the system cannot be influenced after the two-way valve fails, the emptying performance and the oil boiling performance of the system are quicker, the control and system design are safer and more reliable to the system, and the production efficiency of enterprises is relatively higher.
Description
Technical Field
The invention relates to the technical field of petroleum, petrochemical industry and fine chemical industry, in particular to a heat-conducting oil furnace device capable of heating steam and accurately controlling temperature.
Background
In the production process of industries such as petroleum, petrochemical industry, fine chemical industry and the like, a heat-conducting oil furnace is generally adopted as a heating temperature control device, and the conventional heating modes of the heat-conducting oil furnace comprise coal burning, gas heating, fuel oil heating, electric heating and steam heat exchange heating. At present, the most environment-friendly in the production field is electric heating and steam heat exchange heating. The steam heat exchange heating is more energy-saving than the electric heating, but along with the demand of the fine chemical engineering on the temperature, the precision is higher and higher, the conventional steam heating causes pressure fluctuation due to the influence of a steam pipeline, and meanwhile, the heat exchange hysteresis of the steam cannot meet the requirement during temperature control. Along with the increasing market demand, the domestic market needs to develop a heat conduction oil temperature control device which can accurately adjust the temperature by steam heating and has high safety performance.
The existing steam heating heat exchanger has the following defects:
1. the steam heating heat exchanger is directly arranged on the circulating main pipeline, and the temperature control cannot achieve higher precision;
2. the steam heating heat exchanger is directly arranged on the circulating main pipeline, and when the steam two-way regulating valve fails, the temperature cannot be accurately regulated, and meanwhile, the temperature cannot be controlled, so that potential safety hazards are caused;
3. the steam heating heat conduction oil temperature control device is not provided with an electric heating device, and when the steam two-way regulating valve fails, the temperature control cannot be carried out;
4. the steam heating heat conduction oil temperature control device cannot rapidly discharge air in the circulating system;
5. after the steam two-way regulating valve is closed and constant in temperature, a pipeline in front of the valve is easy to accumulate water to cause temperature control and other fault hidden dangers.
Disclosure of Invention
The invention aims to provide a heat-conducting oil furnace device capable of accurately controlling temperature through steam heating, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a heat-conducting oil furnace device capable of accurately controlling temperature through steam heating comprises an expansion oil tank, wherein the upper end of the expansion oil tank is respectively provided with a hole, an emptying pipe and an oil supplementing port, the lower end of the expansion oil tank is respectively provided with a first oil drain valve and a blow-down valve, one end of the expansion oil tank is respectively provided with a first pipeline and a second pipeline which are connected with a circulating pump, the first pipeline is provided with a gas-liquid separator, the other end of the circulating pump, far away from the first pipeline and the second pipeline, is connected with an electric heater, the other end of the electric heater, far away from the circulating pump, is connected with a circulating outlet pipe, the circulating outlet pipe is also provided with a cooling heat exchanger, the lower end of the cooling heat exchanger is respectively provided with a cooling inlet pipeline and a cooling outlet pipeline which are connected with the cooling heat exchanger, the circulating outlet, the upper end of the steam heat exchanger is also connected with a steam inlet pipeline and a condensed water outlet pipeline respectively.
Preferably, two valves are respectively arranged at the other ends of the expansion oil tank, which are far away from the first pipeline and the second pipeline, and a liquid level display meter is further arranged between the two valves.
Preferably, an exhaust port is arranged at the joint of the first pipeline and the expansion oil groove, an oil supplementing valve is arranged on the second pipeline, the first pipeline and the second pipeline are connected through a connecting pipeline, and a communicating valve is arranged on the connecting pipeline.
Preferably, the circulating pump pass through the circulating pump connecting pipe with first pipeline, second tube coupling, just be equipped with second oil drain valve and valve on the circulating pump connecting pipe in proper order.
Preferably, the circulating pump with be equipped with pump export pressure gauge and valve on the pipeline that electric heater connects in proper order, just still be equipped with the cartridge heater thermometer on the electric heater.
Preferably, a safety valve, a three-way regulating valve and an outlet thermometer are sequentially arranged on a pipeline connecting the electric heater and the circulation outlet pipe, and a circulation outlet valve is further arranged at the outlet end of the circulation outlet pipe.
Preferably, the cooling heat exchanger is respectively provided with two heat exchanger pipelines connected with the circulation outlet pipe, and the heat exchanger pipelines are respectively provided with valves.
Preferably, the cooling inlet pipeline and the cooling outlet pipeline are respectively provided with a filter, a cooling inlet valve, a check valve and a cooling outlet valve.
Preferably, two pipelines of the steam heat exchanger connected with the circulating inlet pipe are respectively provided with a valve, and one pipeline is also provided with a three-way valve.
Preferably, the steam heat exchanger with be equipped with two-way governing valve, pressure gauge, steam temperature detection device, valve A, second trap, valve B, second bypass valve on the pipeline that steam inlet pipeline, comdenstion water outlet pipe connected in proper order, the steam inlet pipeline with through the pipe connection between the comdenstion water outlet pipe, and still be equipped with valve C, first trap, first bypass valve and valve D on the pipeline in proper order, steam inlet pipeline mouth of pipe department still is equipped with the filter.
Advantageous effects
The heat-conducting oil furnace device capable of accurately controlling the temperature by steam heating provided by the invention can achieve higher temperature control, the temperature control precision can reach +/-0.1 ℃, the temperature control of the system cannot be influenced after the two-way valve fails, the emptying performance and the oil boiling performance of the system are quicker, the control and system design are safer and more reliable to the system, and the production efficiency of an enterprise is relatively higher.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Reference numerals
1-an expansion oil groove, 2-an inlet hole, 3-an emptying pipe, 4-an oil supplementing hole, 5-a blow-down valve, 6-a first oil discharging valve, 7-a first pipeline, 8-a gas-liquid separator, 9-an electric heater, 10-a circulating pump, 11-a cooling heat exchanger, 12-a circulating outlet pipe, 13-a cooling inlet pipeline, 14-a cooling outlet pipeline, 15-a circulating inlet pipe, 16-a steam heat exchanger, 17-a condensed water outlet pipeline, 18-a steam inlet pipeline and 19-a second pipeline.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Examples
As shown in figure 1, a heat-conducting oil furnace device capable of accurately controlling temperature by steam heating comprises an expansion oil tank 1, wherein the upper end of the expansion oil tank 1 is respectively provided with a hole 2, an emptying pipe 3 and an oil supplementing hole 4, the lower end of the expansion oil tank 1 is respectively provided with a first oil drain valve 6 and a blow-down valve 5, one end of the expansion oil tank 1 is respectively provided with a first pipeline 7 and a second pipeline 19 which are connected with a circulating pump 10, the first pipeline 7 is provided with a gas-liquid separator 8, the other end of the circulating pump 10 far away from the first pipeline 7 and the second pipeline 19 is connected with an electric heater 9, the other end of the electric heater 9 far away from the circulating pump 10 is connected with a circulating outlet pipe 12, the circulating outlet pipe 12 is also provided with a cooling heat exchanger 11, the lower end of the cooling heat exchanger 11 is respectively provided with a cooling inlet pipe 13 and a cooling outlet pipe 14 which are connected with the cooling, the upper end of the steam heat exchanger 16 is also connected with a steam inlet pipeline 18 and a condensed water outlet pipeline 17 respectively.
Preferably, two valves are respectively arranged at the other ends of the expansion oil tank 1 far away from the first pipeline 7 and the second pipeline 19, and a liquid level display meter is further arranged between the two valves.
Preferably, an exhaust port is arranged at the joint of the first pipeline 7 and the expansion oil groove 1, an oil supplementing valve is arranged on the second pipeline 19, the first pipeline 7 and the second pipeline 19 are connected through a connecting pipeline, and a communicating valve is arranged on the connecting pipeline.
Preferably, the circulating pump 10 is connected with the first pipeline 7 and the second pipeline 19 through a circulating pump connecting pipe, and a second oil drain valve and a valve are sequentially arranged on the circulating pump connecting pipe.
Preferably, a pump outlet pressure gauge and a valve are sequentially arranged on a pipeline connecting the circulating pump 10 and the electric heater 9, and the electric heater 9 is further provided with a heating cylinder thermometer.
Preferably, a safety valve, a three-way regulating valve and an outlet thermometer are sequentially arranged on a pipeline connecting the electric heater 9 and the circulation outlet pipe 12, and a circulation outlet valve is further arranged at the outlet end of the circulation outlet pipe 12.
Preferably, the cooling heat exchanger 11 is provided with two heat exchanger pipelines connected with the circulation outlet pipe 12, and the heat exchanger pipelines are provided with valves.
Preferably, the cooling inlet pipe 13 and the cooling outlet pipe 14 are respectively provided with a filter, a cooling inlet valve, a check valve and a cooling outlet valve.
Preferably, two pipelines of the steam heat exchanger 16 connected with the circulation inlet pipe 15 are provided with valves, and one pipeline is also provided with a three-way valve.
Preferably, the pipeline connecting the steam heat exchanger 16 with the steam inlet pipeline 18 and the condensed water outlet pipeline 17 is sequentially provided with a two-way regulating valve, a pressure gauge, a steam temperature detection device, a valve a, a second drain valve, a valve B and a second bypass valve, the steam inlet pipeline 18 is connected with the condensed water outlet pipeline 17 through a pipeline, the pipeline is sequentially provided with a valve C, a first drain valve, a first bypass valve and a valve D, and a filter is further arranged at the pipe orifice of the steam inlet pipeline 18.
Starting the heat conduction oil temperature control device: after the oil injection of the expansion oil groove is finished, an oil supplementing valve is opened (when the communication valve is in a closed state) to supplement oil into the system, and after the oil supplement is finished, the circulating pump can be started to perform an emptying action;
the emptying action has the advantages that: when the communication valve is in a closed state, the oil supplementing valve forms a circulating action by the oil supplementing pipe, the exhaust tank and the expansion oil groove in an opened state, and the expansion oil groove is used as a gas-liquid separator to be emptied more quickly;
heating and temperature control actions: when the controller sets a required temperature, the set temperature can be used for opening a three-way valve of the steam two-way regulating valve according to the outlet temperature of the system and the actual feedback temperature of the inlet thermometer, hot oil flows through the steam heat exchanger, the steam is subjected to heat exchange through the heat exchanger to achieve the purpose of heating the heat conducting oil, and meanwhile, the controller can regulate the output control of the electric heater or the control of the cooling three-way regulating valve according to the temperature difference between the inlet thermometer and the outlet thermometer to enable the outlet temperature to reach the preset temperature so as to keep stable temperature control;
cooling action: in the same way, the controller opens the cooling three-way regulating valve according to the actual temperature feedback, so that the heat conduction oil and the cooling water exchange heat through the cooling heat exchanger to achieve the purpose of cooling;
oil boiling action (typically when new oil is first run): generally, water vapor in the heat conduction oil needs to be evaporated at 120-140 ℃, and the water vapor is basically evacuated with the starting machine;
evacuation of high-temperature light components of the heat conduction oil: after the oil boiling action is finished, the oil supplementing valve needs to be closed, the communication valve is opened, so that the expansion oil groove does not participate in the circulation action of the heat conduction oil, the expansion oil groove cannot be raised due to the rise of the temperature of the heat conduction oil, and in addition, light components generated by long-term high-temperature work of the heat conduction oil are discharged to the expansion oil groove through the exhaust pipe after being converged by the gas-liquid separator, so that the system is safer, and the fault hidden danger of an electric heating pipe and a circulation pump caused by the generation of the light components of the heat conduction oil is prevented;
protection action:
1) the water drainage device is additionally arranged on the front pipeline of the steam two-way valve, so that the pipeline in front of the steam two-way valve is always in a steam state, the water accumulation state of the front pipeline of the steam two-way valve due to the long-time closing state of the steam two-way valve is avoided, and the generation of temperature control and other hidden dangers is prevented.
2) The pressure detection is added on the outlet pipeline of the pump, so that the system can not perform electric heating action when no pressure exists, and the service life of the electric heating pipe is ensured.
3) The temperature detection is added to the electric heating pipe, so that the safety of the whole system is protected by better monitoring some heating abnormal actions.
4) The pressure difference detection is used for preventing the pipeline of the external system from being blocked so as to achieve the purpose of protection. 4) The liquid level detection of the expansion oil tank is used for monitoring whether the system is lack of oil to achieve the purpose of protection.
5) The safety valve is used for preventing some maloperations from playing a role in mechanical protection (the safety valve on the cooling water outlet pipeline is used for preventing the cooling water outlet valve from being closed by mistake, the temperature of cooling water is increased after heat exchange and then is vaporized, so that the pressure is increased to achieve a safety pressure relief action, and the effect of the safety valve at the outlet of the electric heater is similar).
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.
Claims (10)
1. The utility model provides a but heat conduction oil furnace device of steam heating accurate temperature control, includes inflation oil groove (1), its characterized in that: the device is characterized in that the upper end of an expansion oil tank (1) is respectively provided with an inlet hole (2), an emptying pipe (3) and an oil supplementing hole (4), the lower end of the expansion oil tank (1) is respectively provided with a first oil drain valve (6) and a blow-down valve (5), one end of the expansion oil tank (1) is respectively provided with a first pipeline (7) and a second pipeline (19) which are connected with a circulating pump (10), the first pipeline (7) is provided with a gas-liquid separator (8), the other end of the circulating pump (10) far away from the first pipeline (7) and the second pipeline (19) is connected with an electric heater (9), the other end of the electric heater (9) far away from the circulating pump (10) is connected with a circulating outlet pipe (12), the circulating outlet pipe (12) is also provided with a cooling heat exchanger (11), the lower end of the cooling heat exchanger (11) is respectively provided with a cooling inlet pipeline (13) and a, the circulation outlet pipe (12) is further connected with a circulation inlet pipe (15), the circulation inlet pipe (15) is connected with a steam heat exchanger (16) through two pipelines, and the upper end of the steam heat exchanger (16) is further connected with a steam inlet pipeline (18) and a condensed water outlet pipeline (17) respectively.
2. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: the other end of the expansion oil tank (1) far away from the first pipeline (7) and the second pipeline (19) is respectively provided with two valves, and a liquid level display meter is further arranged between the two valves.
3. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: the expansion oil tank is characterized in that an exhaust port is formed in the joint of the first pipeline (7) and the expansion oil tank (1), an oil supplementing valve is arranged on the second pipeline (19), the first pipeline (7) is connected with the second pipeline (19) through a connecting pipeline, and a communicating valve is arranged on the connecting pipeline.
4. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: circulating pump (10) through the circulating pump connecting pipe with first pipeline (7), second pipeline (19) are connected, just be equipped with second oil extraction valve and valve on the circulating pump connecting pipe in proper order.
5. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: and the circulating pump (10) and a pipeline connected with the electric heater (9) are sequentially provided with a pump outlet pressure gauge and a valve, and the electric heater (9) is also provided with a heating cylinder thermometer.
6. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: a safety valve, a three-way regulating valve and an outlet thermometer are sequentially arranged on a pipeline connecting the electric heater (9) and the circulation outlet pipe (12), and a circulation outlet valve is also arranged at the outlet end of the circulation outlet pipe (12).
7. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: the cooling heat exchanger (11) is respectively provided with two heat exchanger pipelines connected with the circulating outlet pipe (12), and the heat exchanger pipelines are respectively provided with valves.
8. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: and the cooling inlet pipeline (13) and the cooling outlet pipeline (14) are respectively provided with a filter, a cooling inlet valve, a check valve and a cooling outlet valve.
9. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: and valves are arranged on two pipelines connected with the circulating inlet pipe (15) of the steam heat exchanger (16), and a three-way valve is also arranged on one pipeline.
10. The steam-heated, precisely temperature-controllable, heat-conductive oil furnace apparatus according to claim 1, wherein: steam heat exchanger (16) with be equipped with two-way governing valve, pressure gauge, steam temperature detection device, valve A, second trap, valve B, second bypass valve on the pipeline that steam inlet pipeline (18), comdenstion water outlet pipeline (17) are connected in proper order, steam inlet pipeline (18) with through the pipe connection between comdenstion water outlet pipeline (17), and still be equipped with valve C, first trap, first bypass valve and valve D on the pipeline in proper order, steam inlet pipeline (18) mouth of pipe department still is equipped with the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102327.1A CN112113198A (en) | 2020-10-15 | 2020-10-15 | Heat conduction oil furnace device capable of achieving steam heating and accurate temperature control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102327.1A CN112113198A (en) | 2020-10-15 | 2020-10-15 | Heat conduction oil furnace device capable of achieving steam heating and accurate temperature control |
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| Publication Number | Publication Date |
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| CN112113198A true CN112113198A (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011102327.1A Pending CN112113198A (en) | 2020-10-15 | 2020-10-15 | Heat conduction oil furnace device capable of achieving steam heating and accurate temperature control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941901A (en) * | 2022-05-27 | 2022-08-26 | 华能(浙江)能源开发有限公司长兴分公司 | Accurate temperature control system of flue gas heating conduction oil |
-
2020
- 2020-10-15 CN CN202011102327.1A patent/CN112113198A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941901A (en) * | 2022-05-27 | 2022-08-26 | 华能(浙江)能源开发有限公司长兴分公司 | Accurate temperature control system of flue gas heating conduction oil |
| CN114941901B (en) * | 2022-05-27 | 2023-06-30 | 华能(浙江)能源开发有限公司长兴分公司 | Flue gas heating heat conduction oil accurate temperature control system |
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Address after: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Aode high end equipment Co.,Ltd. Address before: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: SUZHOU AODE MACHINERY Co.,Ltd. |
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