CN219714064U - Water purging device for furnace tube of heating furnace - Google Patents
Water purging device for furnace tube of heating furnace Download PDFInfo
- Publication number
- CN219714064U CN219714064U CN202320947448.9U CN202320947448U CN219714064U CN 219714064 U CN219714064 U CN 219714064U CN 202320947448 U CN202320947448 U CN 202320947448U CN 219714064 U CN219714064 U CN 219714064U
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- Prior art keywords
- pipe
- condensate
- water
- tube
- storage tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000010926 purge Methods 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 20
- 229910001873 dinitrogen Inorganic materials 0.000 claims 2
- 239000000446 fuel Substances 0.000 claims 2
- 210000003437 trachea Anatomy 0.000 claims 2
- 239000002737 fuel gas Substances 0.000 abstract description 18
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000010408 sweeping Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Furnace Details (AREA)
Abstract
The utility model discloses a heating furnace tube water purging device which comprises a heating furnace and a condensate storage tank, wherein a gaseous water pipe is arranged on a material outlet pipe and is connected with the condensate storage tank, a nitrogen purging pipe and a steam purging pipe are arranged on a material inlet pipe, a fuel gas pipe is arranged in the heating furnace in a penetrating manner, a condensate draining pipe and a condensate draining pipe are respectively arranged at the bottom end and the top end of the condensate storage tank, control valves are respectively arranged on the gaseous water pipe, the nitrogen purging pipe, the steam purging pipe and the fuel gas pipe, and a condensate draining valve are respectively arranged on the condensate draining pipe and the condensate draining pipe. The utility model designs a fuel gas pipe to guide fuel gas into a furnace tube, after evaporating residual moisture in the furnace tube into gaseous water, heating nitrogen by utilizing steam and introducing the gaseous water into the furnace tube, so that the gaseous water enters a condensate storage tank through the gaseous water pipe, the gaseous water is condensed in the condensate storage tank, condensate is discharged through a condensate discharge pipe, and nitrogen and non-condensate are discharged through a vent pipe until the condensate storage tank is discharged without water, and the residual water in the furnace tube is completely purged.
Description
Technical Field
The utility model belongs to the technical field of heating furnaces, and particularly relates to a water purging device for a furnace tube of a heating furnace.
Background
Heating furnaces are widely used in various industrial production facilities as an integral part of industrial production, mainly to supply heat for production. In order to improve the heating efficiency of the heating furnace, the furnace tube of the heating furnace is often designed into a multi-layer coil pipe, and the design improves the heating efficiency of the heating furnace, but brings a certain trouble to the pipe purging.
After the hydraulic test and the water intermodal transportation are completed in the industrial production system, the water in the system is purged, the water in the furnace tube of the heating furnace is difficult to be blown out completely, if the water in the furnace tube is not blown out completely, on one hand, when the system is fed, the water enters the reaction system along with materials, the water enters the reaction system to cause irrecoverable damage to the catalyst, the physical strength of the catalyst is reduced, the service life of the catalyst is shortened, the investment is increased, and the production is seriously influenced; on the other hand, in severe cold weather in winter, the furnace tube is easy to be frost-cracked after water in the furnace tube is frozen, equipment is damaged, and maintenance tasks and maintenance cost are increased. At present, most of industrial devices use nitrogen as an air source, long-time and large-flow pipeline purging is performed, the purging time is long, the purging effect is poor, more water still remains in the furnace tube, equipment is damaged, and the service life of the catalyst is short.
Disclosure of Invention
The utility model aims to provide a heating furnace tube water purging device so as to solve the problem of difficulty in purging heating furnace tube water.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a heating furnace boiler tube water sweeps device, includes the heating furnace, set up the boiler tube in the heating furnace, the both ends of boiler tube set up material inlet tube and material outlet pipe respectively, set up inlet valve and outlet valve on material inlet tube and the material outlet pipe respectively, its characterized in that: the device comprises a heating furnace, and is characterized by further comprising a condensate storage tank, wherein a gaseous water pipe is arranged on a material outlet pipe and is connected with the condensate storage tank, a nitrogen purging pipe and a steam purging pipe are arranged on a material inlet pipe, a fuel gas pipe is arranged in the heating furnace in a penetrating manner, an evacuation pipe and a vent pipe are respectively arranged at the bottom end and the top end of the condensate storage tank, control valves are respectively arranged on the gaseous water pipe, the nitrogen purging pipe, the steam purging pipe and the fuel gas pipe, and an evacuation valve and a vent valve are respectively arranged on the evacuation pipe and the vent pipe.
In order to further realize the utility model, a purging main pipe is arranged on the nitrogen purging pipe and the steam purging pipe and is communicated with the material inlet pipe, and a purging main valve is arranged on the purging main pipe.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model designs a fuel gas pipe to guide fuel gas into a furnace tube, after evaporating residual moisture in the furnace tube into gaseous water, heating nitrogen by utilizing steam and introducing the gaseous water into the furnace tube, so that the gaseous water enters a condensate storage tank through the gaseous water pipe, the gaseous water is condensed in the condensate storage tank, condensate is discharged through a condensate discharge pipe, and nitrogen and non-condensate are discharged through a vent pipe until the condensate storage tank is discharged without water, and the residual water in the furnace tube is completely purged.
The utility model has the advantages of reliable use, simple operation and obvious effect, can prolong the service life of the catalyst, protects equipment, is safe and reliable in the use process, reduces the labor intensity of personnel, and can complete the purging task in a short time.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
the reference numerals have the following meanings: 1. a condensate storage tank; 2. a material outlet pipe; 3. a gaseous water pipe; 4. a material inlet pipe; 5. a nitrogen purge tube; 6. a steam purge tube; 7. a heating furnace; 8. a fuel gas pipe; 9. a discharge tube; 10. blow-down pipe; 11. a control valve; 12. a discharge valve; 13. a blow-off valve; 14. purging the main pipe; 15. purging a main valve; 16. an inlet valve; 17. an outlet valve; 18. and (5) a furnace tube.
Detailed Description
The utility model is further described below with reference to the drawings and the detailed description.
As shown in fig. 1, a heating furnace tube water sweeping device comprises a heating furnace, a furnace tube 18 is arranged in a heating furnace 7, a material inlet tube 4 and a material outlet tube 2 are respectively arranged at two ends of the furnace tube 18, an inlet valve 16 and an outlet valve 17 are respectively arranged on the material inlet tube 4 and the material outlet tube 2, a condensate storage tank 1 is further arranged, a gaseous water tube 3 is arranged on the material outlet tube 2 and is connected with the condensate storage tank 1, a nitrogen sweeping tube 5 and a steam sweeping tube 6 are arranged on the material inlet tube 4, a sweeping header 14 is arranged on the nitrogen sweeping tube 5 and the steam sweeping tube 6 and is communicated with the material inlet tube 4, a fuel gas tube 8 penetrates through the heating furnace 7, a condensate draining tube 9 and a blow-down tube 10 are respectively arranged at the bottom end and the top end of the condensate storage tank 1, a control valve 11 is respectively arranged on the gaseous water tube 3, the nitrogen sweeping tube 5, the steam sweeping tube 6 and the fuel gas tube 8, a condensate draining valve 12 and a blow-down valve 13 are respectively arranged on the condensate draining tube 9 and the blow-down tube 10, and a main valve 15 is arranged on the sweeping header 14.
Before operation, the inlet valve 16 and the outlet valve 17 are closed, the purge main valve 15, the control valve 11 and the vent valve 13 of the gas water pipe 3 are opened, the control valve 11 of the fuel gas pipe 8 is opened, the fuel gas is led into the heating furnace 7 through the fuel gas pipe 8, the heating furnace 7 is ignited, the temperature of the heating furnace 7 is regulated through the control valve 11 of the fuel gas pipe 8, when the temperature of the furnace pipe 18 reaches 80 ℃, the control valve 11 of the steam purge pipe and the control valve 11 of the nitrogen purge pipe 5 are opened to mix nitrogen with steam, then the purge main valve 15 is opened to introduce high-temperature mixed gas into the furnace pipe 18, the temperature in the heating furnace 7 is raised to 150 ℃ through the control valve 11 of the fuel gas pipe 8 and kept at a relatively constant temperature, residual water in the furnace pipe 18 is heated and evaporated into a gas state through heating, under the action of high-temperature nitrogen, the residual water in the gas state is purged into the gas state water pipe 3 and then enters the condensed water storage tank 1 to be condensed, the condensation discharge valve 12 and the vent valve 13 are opened to discharge condensed water through the condensation discharge pipe 9, nitrogen and non-condensed gas are discharged through the vent pipe 10, the fact that the condensation discharge pipe 9 is discharged without water is known, residual water in the furnace pipe 18 is purged completely at the moment, the heating furnace 7 starts to cool through the control valve 11 of the fuel gas pipe 8, the steam flow is gradually reduced through the control valve 11 of the steam purge pipe 6, the temperature of the nitrogen is gradually reduced in cooperation with the cooling of the heating furnace 7, purging is continued until the temperature is reduced to 50 ℃, the heating furnace 7 is flameout, the control valve 11 of the fuel gas pipe 8, the control valve 11 of the nitrogen purge pipe, the purge main valve 15, the control valve 11 of the gas state water pipe, the vent valve 13 and the condensation discharge valve 12 are closed, and the residual water purging of the furnace pipe 18 of the heating furnace 7 is completed.
Claims (2)
1. The utility model provides a heating furnace boiler tube water sweeps device, includes the heating furnace, set up the boiler tube in the heating furnace, the both ends of boiler tube set up material inlet tube and material outlet pipe respectively, set up inlet valve and outlet valve on material inlet tube and the material outlet pipe respectively, its characterized in that: still including condensate storage tank (1), set up gaseous state water pipe (3) on material outlet pipe (2) and be connected with condensate storage tank (1), set up nitrogen gas on material inlet pipe (4) and sweep pipe (5) and steam and sweep pipe (6), wear to establish fuel trachea (8) in heating furnace (7), bottom and the top of condensate storage tank (1) set up evacuation pipe (9) and blow-down pipe (10) respectively, gaseous state water pipe (3), nitrogen gas sweeps pipe (5), steam sweeps on pipe (6) and fuel trachea (8) respectively set up control valve (11), set up on evacuation pipe (9) and blow-down pipe (10) and drain valve (13) respectively.
2. The furnace tube water purge apparatus of claim 1, wherein: and the nitrogen purging pipe (5) and the steam purging pipe (6) are provided with a purging main pipe (14) which is communicated with the material inlet pipe (4), and the purging main pipe (14) is provided with a purging main valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320947448.9U CN219714064U (en) | 2023-04-24 | 2023-04-24 | Water purging device for furnace tube of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320947448.9U CN219714064U (en) | 2023-04-24 | 2023-04-24 | Water purging device for furnace tube of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714064U true CN219714064U (en) | 2023-09-19 |
Family
ID=88001856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320947448.9U Active CN219714064U (en) | 2023-04-24 | 2023-04-24 | Water purging device for furnace tube of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714064U (en) |
-
2023
- 2023-04-24 CN CN202320947448.9U patent/CN219714064U/en active Active
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