CN218495906U - Heat exchange system for medium-pressure steam and heat conduction oil - Google Patents
Heat exchange system for medium-pressure steam and heat conduction oil Download PDFInfo
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- CN218495906U CN218495906U CN202222283246.7U CN202222283246U CN218495906U CN 218495906 U CN218495906 U CN 218495906U CN 202222283246 U CN202222283246 U CN 202222283246U CN 218495906 U CN218495906 U CN 218495906U
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Abstract
The utility model discloses a heat exchange system for medium-pressure steam and heat conducting oil, which relates to the technical field of heat exchange of heat conducting liquid and comprises a heat exchanger, wherein a steam inlet end of the heat exchanger is connected with a medium-pressure steam pipeline, a first valve is arranged in the middle of the medium-pressure steam pipeline, and an oil outlet of the heat exchanger is connected with an oil supply pipeline; the condensation water tank, the entrance point of condensation water tank passes through the pipeline and is connected with the condensate outlet end of heat exchanger, the exit end of condensation water tank and condensate recovery pipeline be connected, this heat transfer system utilizes steam and conduction oil heat transfer oil to replace the conduction oil boiler in the heat exchanger further for the enterprise can realize the replacement of conduction oil heating heat source under the condition that does not change former equipment and production technology, increases regional central heating's steady load and reduces environmental pollution.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer liquid heat transfer technique and specifically relates to a heat transfer system for middling pressure steam and conduction oil.
Background
The heat conduction oil has good heat transfer effect, high heat transfer efficiency, good thermal stability and oxidation resistance and good volatility, and can obtain very high operating temperature under the condition of almost normal pressure, so most printing and dyeing enterprises use the heat conduction oil as a heating heat source of the heat setting process.
The coal-fired heat-conducting oil furnace used by general enterprises has low heat efficiency, large difficulty in dust removal and desulfurization and high cost, and is not beneficial to energy conservation and emission reduction; and the small boiler belongs to the category of eliminating shutdown, and the examination, approval and use are strictly limited.
In the area covered by centralized heat supply, the emission can be reduced and the cost can be saved by using steam as a heating heat source, and when the steam is directly used for replacing heat conducting oil as the heat source of the setting machine, the original equipment needs to be modified, the operating pressure and the safety requirement of a heating system need to be improved, and the temperature stability is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art weak point, provide a through steam and conduction oil heat transfer and then replace the heat transfer oil boiler be used for medium pressure steam and conduction oil heat transfer system.
Specifically, the heat transfer system for medium pressure steam and conduction oil includes: the steam inlet end of the heat exchanger is connected with a medium-pressure steam pipeline, a first valve is arranged in the middle of the medium-pressure steam pipeline, and an oil outlet of the heat exchanger is connected with an oil supply pipeline; the inlet end of the condensation water tank is connected with the condensation water outlet end of the heat exchanger through a pipeline, the outlet end of the condensation water tank is connected with a condensation water recovery pipeline, and the middle part of the condensation water recovery pipeline is provided with a second valve; the circulating oil pump, the input and the oil return pipe of circulating oil pump are connected, and the output of circulating oil pump passes through the pipe connection with the oil inlet of heat exchanger.
Furthermore, an oil-gas separator is arranged in the middle of the oil return pipeline, and an expansion port of the oil-gas separator is connected with an expansion oil tank through a pipeline.
Furthermore, the quick discharge port and the overflow port of the expansion oil tank are connected with the oil storage tank through pipelines, and a third valve is arranged on the pipeline between the quick discharge port of the expansion oil tank and the oil storage tank.
Furthermore, the oil supply pipeline and the oil return pipeline are provided with low points which are connected with the oil storage tank through pipelines, and the pipelines between the low points and the oil storage tank are provided with fourth valves.
Furthermore, a bypass pipeline is connected between the oil supply pipeline and the oil return pipeline, a fifth valve is installed in the middle of the bypass pipeline, a first check valve and a sixth valve are arranged in an oil return pipeline section between the bypass pipeline and the oil-gas separator, and a seventh valve is installed in the middle of the oil supply pipeline.
Furthermore, the number of the heat exchangers is at least two, a first main pipe is connected between oil outlets of the heat exchangers, and the oil supply pipeline is connected with the first main pipe.
Further, the quantity of circulating oil pump is two at least, and the output of circulating oil pump all is connected through pipeline and the female union coupling of second, the oil inlet of heat exchanger all is connected through pipeline and the female union coupling of second, the pipeline middle part between the oil inlet of heat exchanger and the female pipe of second all is provided with the eighth valve, the pipeline middle part between the output of circulating oil pump and the female pipe of second all is provided with the second check valve, the input of circulating oil pump all is connected through pipeline and the female pipe of third, ninth valve is all installed at the pipeline middle part between the input of circulating oil pump and the female pipe of third, return oil pipe is connected with the female pipe of third.
Furthermore, the oil outlets of the heat exchangers are connected with safety valves through pipelines, and oil discharge ports of the safety valves are connected with emergency oil tanks.
The utility model discloses following beneficial effect has: through setting up heat exchanger, middling pressure steam pipeline, condensation water jar and circulating oil pump, utilize steam and conduction oil heat transfer in the heat exchanger and then replace the conduction oil boiler for the enterprise can realize the replacement of conduction oil heating heat source under the condition that does not change former equipment and production technology, increases the steady load of central heating in the region and reduces environmental pollution.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a heat exchange system for medium-pressure steam and heat transfer oil according to an embodiment of the present invention.
Reference numerals are as follows:
1. a heat exchanger; 2. a medium pressure steam line; 3. a first valve; 4. an oil supply conduit; 5. a condensation water tank; 6. a condensed water recovery pipeline; 7. a second valve; 8. a circulating oil pump; 9. an oil return line; 10. an oil-gas separator; 11. an expansion oil tank; 12. an oil storage tank; 13. a third valve; 14. a low point; 15. a fourth valve; 16. a bypass conduit; 17. a fifth valve; 18. a first check valve; 19. a sixth valve; 20. a first main pipe; 21. a seventh valve; 22. a second main pipe; 23. an eighth valve; 24. a second one-way valve; 25. a third main pipe; 26. a ninth valve; 27. an emergency oil tank; 28. a safety valve.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1, a preferred embodiment of the present invention provides a heat exchange system for medium pressure steam and heat transfer oil, including: the steam inlet end of the heat exchanger 1 is connected with a medium-pressure steam pipeline 2, a first valve 3 is arranged in the middle of the medium-pressure steam pipeline 2, medium-pressure steam can be introduced into the heat exchanger 1 after the first valve 3 is opened, and an oil outlet of the heat exchanger 1 is connected with an oil supply pipeline 4; the inlet end of the condensation water tank 5 is connected with the condensation water outlet end of the heat exchanger 1 through a pipeline, the outlet end of the condensation water tank 5 is connected with a condensation water recovery pipeline 6, and the middle part of the condensation water recovery pipeline 6 is provided with a second valve 7; the circulating oil pump 8, the input of circulating oil pump 8 is connected with oil return pipe 9, and the output of circulating oil pump 8 passes through the pipe connection with the oil inlet of heat exchanger 1, can carry out the heat transfer with medium pressure steam in the heat exchanger 1 with the conduction oil pump in the oil return pipe 9 under the drive effect of circulating oil pump 8 to can utilize medium pressure steam to heat the conduction oil.
In a further embodiment, an oil-gas separator 10 is arranged in the middle of the oil return pipeline 9, an expansion port of the oil-gas separator 10 is connected with an expansion oil tank 11 through a pipeline, and when the temperature of the heat transfer oil rises and the volume of the heat transfer oil increases, redundant heat transfer oil can be discharged to the expansion oil tank 11 through the oil-gas separator 10.
In a further embodiment, the quick discharge port and the overflow port of the expansion oil tank 11 are both connected to the oil storage tank 12 through a pipeline, and a third valve 13 is disposed on the pipeline between the quick discharge port of the expansion oil tank 11 and the oil storage tank 12, so that the heat conduction oil in the expansion oil tank 11 can overflow to the oil storage tank 12 through the overflow port for storage when the level of the heat conduction oil in the expansion oil tank 11 is too high, and the heat conduction oil in the expansion oil tank 11 can be discharged to the oil storage tank 12 for storage by opening the third valve 13 when the expansion oil tank 11 needs emergency oil drainage.
In a further embodiment, the oil supply pipeline 4 and the oil return pipeline 9 are both provided with low points 14, wherein the low points 14 are respectively arranged at the lowest positions of the oil supply pipeline 4 and the oil return pipeline 9, so that when heat transfer oil needs to be emptied, the heat transfer oil in the oil supply pipeline 4 and the oil return pipeline 9 can flow to the low points 14, the low points 14 are both connected with the oil storage tank 12 through pipelines, the pipelines between the low points 14 and the oil storage tank 12 are both provided with fourth valves 15, when the system is overhauled or emergency situations need to empty the heat transfer oil, the heat transfer oil can be discharged into the oil storage tank 12 for storage by opening the fourth valves 15, wherein the oil storage tank 12 needs to be arranged at a position lower than the low points 14.
In a further embodiment, a bypass pipeline 16 is connected between the oil supply pipeline 4 and the oil return pipeline 9, a fifth valve 17 is installed in the middle of the bypass pipeline 16, a first check valve 18 and a sixth valve 19 are arranged in an oil return pipeline section between the bypass pipeline 16 and the oil-gas separator 10, and a seventh valve 21 is installed in the middle of the oil supply pipeline 4, wherein the first check valve 18 is used for preventing heat conduction oil in the oil return pipeline 9 from flowing reversely, and the heat conduction oil can be circulated into the heat exchanger 1 for circulation heating by opening the fifth valve 17 on the bypass pipeline 16 and closing the seventh valve 21 on the oil supply pipeline 4 and the sixth valve 19 on the oil return pipeline 9.
In a further embodiment, the number of the heat exchangers 1 is at least two, a first main pipe 20 is connected between oil outlets of the heat exchangers 1, and the oil supply pipeline 4 is connected with the first main pipe 20, so that the heat exchangers 1 can be mutually standby, and when one of the heat exchangers 1 fails, the other heat exchangers 1 can be switched to fail, so that the normal operation of the heat exchange system cannot be influenced.
In a further embodiment, the number of the circulating oil pumps 8 is at least two, the output ends of the circulating oil pumps 8 are connected with the second main pipe 22 through pipelines, the oil inlets of the heat exchanger 1 are connected with the second main pipe 22 through pipelines, eighth valves 23 are arranged in the middle of the pipelines between the oil inlets of the heat exchanger 1 and the second main pipe 22, second check valves 24 are arranged in the middle of the pipelines between the output ends of the circulating oil pumps 8 and the second main pipe 22, the input ends of the circulating oil pumps 8 are connected with the third main pipe 25 through pipelines, ninth valves 26 are arranged in the middle of the pipelines between the input ends of the circulating oil pumps 8 and the third main pipe 25, the oil return pipelines 9 are connected with the third main pipe 25, the plurality of circulating oil pumps 8 can be standby to each other by controlling the on-off of the eighth valves 23 and the ninth valves 26, when one of the circulating oil pumps 8 fails, the other circulating oil pumps 8 can be switched to fail, so that the normal operation of the heat exchange system cannot be affected, wherein the second check valves 24 are used for preventing the heat conduction oil in the second main pipe 22 from flowing back into the circulating oil pumps 8.
In a further embodiment, the oil outlets of the heat exchanger 1 are connected with a safety valve 28 through pipelines, the oil discharge port of the safety valve 28 is connected with an emergency oil tank 27, when the pressure of the oil outlet of the heat exchanger 1 is greater than the safety threshold value of the safety valve 28, the safety valve 28 can be automatically opened to send heat conduction oil into the emergency oil tank 27, so that automatic pressure relief can be performed, and the safety factor of the pipelines is improved, wherein the maintenance discharge port of the circulating oil pump 8 can also be connected with the emergency oil tank 27 through a pipeline, so that the heat conduction oil in the circulating oil pump 8 is discharged into the emergency oil tank 27 when the circulating oil pump 8 is maintained.
The working principle of the technical scheme is as follows: medium-pressure steam is conveyed to the steam-heat conducting oil heat exchanger 1 through the medium-pressure steam pipeline 2, heat conducting oil is conveyed to the steam-heat conducting oil heat exchanger 1 through a circulating oil pump 8 through a pipeline, and high-temperature steam and low-temperature heat conducting oil exchange heat in the heat exchanger 1; the medium-pressure steam is condensed into condensed water after the temperature of the medium-pressure steam is reduced, the condensed water enters a condensed water tank 5 through a pipeline, the water level of the condensed water tank 5 can be adjusted through a second valve 7 on a condensed water recovery pipeline 6, the temperature of a heat conduction oil outlet is further adjusted, the heated heat conduction oil is connected to a heat conduction oil supply pipeline 4 from the outlet of a heat exchanger 1 and enters an oil return pipeline 9 through a bypass pipeline 16 between the oil supply pipeline 4 and the oil return pipeline 9, the heated heat conduction oil is conveyed to the heat exchanger 1 again through a circulating oil pump 8, the heat conduction oil is repeatedly circulated until the temperature of the heat conduction oil is stabilized to the use temperature, a fifth valve 17 on the bypass pipeline 16 is closed, the heat conduction oil enters an oil using point through the oil supply pipeline 4, the used heat conduction oil returns to the heat exchanger 1 through the oil return pipeline 9 for reheating, and therefore the heat exchange between the steam and the heat conduction oil in the heat exchanger 1 can be utilized to replace a heat conduction oil boiler, heat exchange system of heat utilization enterprises such as printing and dyeing in an industrial heat conduction oil park, biopharmaceutical and the like can eliminate the original boiler, the cost of enterprise equipment transformation is reduced, and the industrial requirement is met; and increase the stable heat load of the central heating pipe network of industrial park, improve the heating load of park thermal power plant, reach the efficiency of less input and many outputs, and this system reasonable in design, simple structure has reduced the cost that enterprise's equipment reformed transform.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.
Claims (8)
1. A heat transfer system for medium pressure steam and conduction oil, comprising:
the steam inlet end of the heat exchanger is connected with a medium-pressure steam pipeline, a first valve is arranged in the middle of the medium-pressure steam pipeline, and an oil outlet of the heat exchanger is connected with an oil supply pipeline;
the inlet end of the condensation water tank is connected with the condensation water outlet end of the heat exchanger through a pipeline, the outlet end of the condensation water tank is connected with a condensation water recovery pipeline, and the middle part of the condensation water recovery pipeline is provided with a second valve;
and the input end of the circulating oil pump is connected with the oil return pipeline, and the output end of the circulating oil pump is connected with the oil inlet of the heat exchanger through a pipeline.
2. The heat exchange system for medium-pressure steam and conduction oil of claim 1, wherein an oil-gas separator is arranged in the middle of the oil return pipeline, and an expansion port of the oil-gas separator is connected with an expansion oil tank through a pipeline.
3. The heat exchange system for medium pressure steam and conduction oil of claim 2, wherein the quick drain port and the overflow port of the expansion oil tank are both connected with the oil storage tank through a pipeline, and a third valve is arranged on the pipeline between the quick drain port of the expansion oil tank and the oil storage tank.
4. The heat exchange system for medium pressure steam and conduction oil of claim 2, wherein the oil supply and return lines are each provided with a low point, the low points are each connected to the oil storage tank by a pipe, and the pipes between the low points and the oil storage tank are each provided with a fourth valve.
5. The heat exchange system for medium-pressure steam and conduction oil of claim 2, wherein a bypass pipeline is connected between the oil supply pipeline and the oil return pipeline, a fifth valve is installed in the middle of the bypass pipeline, a first check valve and a sixth valve are arranged on an oil return pipeline section between the bypass pipeline and the oil-gas separator, and a seventh valve is installed in the middle of the oil supply pipeline.
6. The heat exchange system for medium pressure steam and diathermic oil of claim 1, wherein the number of the heat exchangers is at least two, and a first main pipe is connected between oil outlets of the heat exchangers, and the oil supply pipeline is connected with the first main pipe.
7. The heat exchange system for medium-pressure steam and heat transfer oil of claim 6, wherein the number of the circulating oil pumps is at least two, the output ends of the circulating oil pumps are connected with the second main pipe through pipelines, the oil inlets of the heat exchanger are connected with the second main pipe through pipelines, eighth valves are arranged in the middle of the pipelines between the oil inlets of the heat exchanger and the second main pipe, second one-way valves are arranged in the middle of the pipelines between the output ends of the circulating oil pumps and the second main pipe, the input ends of the circulating oil pumps are connected with the third main pipe through pipelines, ninth valves are arranged in the middle of the pipelines between the input ends of the circulating oil pumps and the third main pipe, and the oil return pipelines are connected with the third main pipe.
8. The heat exchange system for medium pressure steam and thermal oil according to claim 7, wherein the oil outlets of the heat exchanger are each connected with a safety valve through a pipe, and the oil drain port of the safety valve is connected with an emergency oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283246.7U CN218495906U (en) | 2022-08-30 | 2022-08-30 | Heat exchange system for medium-pressure steam and heat conduction oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283246.7U CN218495906U (en) | 2022-08-30 | 2022-08-30 | Heat exchange system for medium-pressure steam and heat conduction oil |
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| Publication Number | Publication Date |
|---|---|
| CN218495906U true CN218495906U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222283246.7U Active CN218495906U (en) | 2022-08-30 | 2022-08-30 | Heat exchange system for medium-pressure steam and heat conduction oil |
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| CN (1) | CN218495906U (en) |
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- 2022-08-30 CN CN202222283246.7U patent/CN218495906U/en active Active
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