CN212178843U - Exhaust steam waste heat recovery and wastewater discharge device of dry quenching boiler - Google Patents
Exhaust steam waste heat recovery and wastewater discharge device of dry quenching boiler Download PDFInfo
- Publication number
- CN212178843U CN212178843U CN202020549078.XU CN202020549078U CN212178843U CN 212178843 U CN212178843 U CN 212178843U CN 202020549078 U CN202020549078 U CN 202020549078U CN 212178843 U CN212178843 U CN 212178843U
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- China
- Prior art keywords
- heat exchange
- boiler
- pipe
- deaerator
- exchange box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 20
- 230000000171 quenching effect Effects 0.000 title claims abstract description 20
- 239000002918 waste heat Substances 0.000 title claims abstract description 12
- 239000002351 wastewater Substances 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000571 coke Substances 0.000 claims description 18
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000012824 chemical production Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 12
- 238000007599 discharging Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Abstract
The utility model belongs to the technical field of chemical production, and discloses a dry quenching boiler exhaust steam waste heat recovery and waste water discharge device, which comprises a boiler and a first deaerator, wherein the side wall of the boiler is connected with a first water discharge pipe, one end of the first water discharge pipe, which is far away from the boiler, is connected with a heat exchange box, the top end cover of the heat exchange box is provided with a sealing cover, a second water discharge pipe is connected between the side wall of the first deaerator and the heat exchange box, and a hot gas outlet pipe is connected between the top end of the first deaerator and the upper end of the side wall of the heat exchange box, the utility model can recover the exhaust gas of the first deaerator into the heat exchange box provided with a spiral heat exchange pipe through the hot gas outlet pipe, can fully absorb the heat in the hot gas, avoid heat loss, improve the utilization rate of the heat, then convey the low-pressure deaerator by a conveying pump for deaerating, and in addition, connect, the waste of water resources is avoided.
Description
Technical Field
The utility model belongs to the technical field of chemical production, concretely relates to dry coke quenching boiler exhaust steam waste heat recovery and effluent discharge device.
Background
The coke dry quenching refers to a coke quenching method for cooling and cooling red coke by adopting inert gas, in the coke dry quenching process, high-temperature red coke is loaded from the top of a coke dry quenching furnace, low-temperature inert circulating gas is blown into a red coke layer of a cooling section of the coke dry quenching furnace by a circulating fan to absorb sensible heat of the red coke, high-temperature inert gas discharged from an annular flue of the coke dry quenching furnace flows through a coke dry quenching boiler to exchange heat, the boiler can generate steam, and the inert gas is recycled in a closed system.
But at present prior art also can discharge a large amount of vapor when discharging oxygen, and a large amount of vapor discharges when the row of deciding moves, easily causes the waste of heat energy and working medium, and in addition, the blowdown water of factory all flows to the river course at present, does not set up the sewage collection structure, easily causes the pollution to the river course, does not conform to the requirement of green chemical industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dry coke quenching boiler exhaust steam waste heat recovery and effluent discharge device to discharge a large amount of steam when the fixed discharge operation that proposes among the above-mentioned background art is solved, easily cause the extravagant problem of heat energy and working medium, in addition, do not set up the sewage collection structure, sewage discharge easily causes the problem of pollution to the river course.
In order to achieve the above object, the utility model provides a following technical scheme: a device for recovering waste steam and waste heat of a dry quenching boiler and discharging waste water, which comprises a boiler and a first deaerator, the side wall of the boiler is connected with a first drainage pipe, one end of the first drainage pipe, which is far away from the boiler, is connected with a heat exchange box, a sealing cover is arranged at the top end cover of the heat exchange box, a second drain pipe is connected between the side wall of the first deaerator and the heat exchange box, a hot gas outlet pipe is connected between the top end of the first deaerator and the upper end of the side wall of the heat exchange box, one end of the hot gas outlet pipe, which is far away from the first deaerator, is connected with a spiral heat exchange pipe, the spiral heat exchange pipe is arranged in the heat exchange box, and one end of the spiral heat exchange tube far away from the hot gas outlet tube is connected with a second output tube, one end of the second output tube far away from the spiral heat exchange tube is provided with a delivery pump, the output end of the delivery pump is connected with a first output pipe, and one end, far away from the delivery pump, of the first output pipe is connected with a low-pressure deaerator.
Preferably, the bottom of boiler is connected with second blowdown branch pipe, the bottom of first oxygen-eliminating device is connected with first blowdown branch pipe, the tip of first blowdown branch pipe and second blowdown branch pipe is connected with blowdown house steward through the tee bend.
Preferably, the lower end of the front surface wall of the heat exchange box is connected with a water outlet pipe, and a water outlet valve is mounted on the outer surface wall of the water outlet pipe.
Preferably, a transparent observation window is installed on the rear surface wall of the heat exchange box, and the transparent observation window is of a rectangular structure.
Preferably, the upper surface wall of the sealing cover is provided with a handle, and the outer surface wall of the handle is bonded with a rubber sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an in retrieving the heat transfer incasement of installing spiral heat exchange tube through the steam exit tube with the exhaust of first oxygen-eliminating device, heat in the steam can be fully absorbed, avoid the heat to scatter and disappear, thermal utilization ratio has been improved, recycle the delivery pump afterwards and carry the low pressure oxygen-eliminating device and carry out the deoxidization, in addition, dredge the boiler and drain water that reaches first oxygen-eliminating device also inserts to the heat transfer case, the waste of water resource has been avoided, the deoxidization up to standard of low pressure oxygen-eliminating device has both been guaranteed in this design, guarantee dry coke quenching boiler vaporization process system and operate steadily again.
(2) The utility model discloses an add first blowdown branch pipe and second blowdown branch pipe to gather two blowdown branch pipes and be connected to the blowdown house steward, can effectively collect sewage and arrange to the waste water collecting pit, avoided discharging to the river course and easily caused the defect of pollution, accord with green chemical industry's production requirement.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the heat exchange box of the present invention;
FIG. 3 is a rear view of the heat exchange box of the present invention;
in the figure: 1-boiler, 2-first water discharge pipe, 3-hot gas outlet pipe, 4-sealing cover, 5-heat exchange box, 6-low pressure deaerator, 7-first output pipe, 8-delivery pump, 9-second output pipe, 10-water outlet pipe, 11-second water discharge pipe, 12-first deaerator, 13-main sewage discharge pipe, 14-first branch sewage discharge pipe, 15-second branch sewage discharge pipe, 16-spiral heat exchange pipe and 17-transparent observation window.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a device for recovering exhaust steam waste heat and discharging waste water of a dry quenching boiler comprises a boiler 1 and a first deaerator 12, wherein the side wall of the boiler 1 is connected with a first water discharge pipe 2, one end of the first water discharge pipe 2, which is far away from the boiler 1, is connected with a heat exchange box 5, the top end of the heat exchange box 5 is covered with a sealing cover 4, a second water discharge pipe 11 is connected between the side wall of the first deaerator 12 and the heat exchange box 5, a hot gas outlet pipe 3 is connected between the top end of the first deaerator 12 and the upper end of the side wall of the heat exchange box 5, one end, which is far away from the first deaerator 12, of the hot gas outlet pipe 3 is connected with a spiral heat exchange pipe 16, the spiral heat exchange pipe 16 is arranged inside the heat exchange box 5, one end, which is far away from the hot gas outlet pipe 3, of the spiral heat exchange pipe 16 is connected, the model that delivery pump 8 adopted is 50CQ-25, voltage is 220V, the rotational speed is 2900r/min, delivery pump 8's output is connected with first output tube 7, the one end that first output tube 7 kept away from delivery pump 8 is connected with low pressure oxygen-eliminating device 6, exhaust of first oxygen-eliminating device 12 is retrieved through hot gas exit tube 3 and is installed in the heat transfer case 5 of spiral heat exchange tube 16, heat in the steam can fully be absorbed, avoid the heat to scatter and disappear, the thermal utilization ratio has been improved, recycle delivery pump 8 afterwards and carry low pressure oxygen-eliminating device 6 and carry out the deoxidization, in addition, also insert heat transfer case 5 with boiler 1 drainage of dredging water and first oxygen-eliminating device 12, the waste of water resource has been avoided.
Further, the bottom of boiler 1 is connected with second blowdown branch pipe 15, the bottom of first oxygen-eliminating device 12 is connected with first blowdown branch pipe 14, the tip of first blowdown branch pipe 14 and second blowdown branch pipe 15 is connected with blowdown house steward 13 through the tee bend head, the sewage of production can be arranged to the waste water collecting tank through blowdown house steward 13 after gathering via first blowdown branch pipe 14 and second blowdown branch pipe 15, the defect that discharges to the river course and easily cause the pollution has been avoided, accord with green chemical industry's production requirement.
Furthermore, the lower end of the front surface wall of the heat exchange box 5 is connected with a water outlet pipe 10, a water outlet valve is installed on the surface wall of the water outlet pipe 10, after cold water is changed into hot water through heat exchange, the water outlet valve can be opened to enable the hot water to flow out of the water outlet pipe 10, and chemical production can be carried out by utilizing the hot water.
Furthermore, a transparent observation window 17 is installed on the rear surface wall of the heat exchange box 5, the transparent observation window 17 is of a rectangular structure, the liquid level condition in the heat exchange box 5 can be observed through the transparent observation window 17, and liquid drainage operation is facilitated
Further, the handle is installed to the last wall of sealed lid 4, and the outward appearance wall of handle bonds and has the rubber sleeve, carries through the handle and takes sealed lid 4, and convenient laborsaving, the comfort when the handle is held to the multiplicable of rubber sleeve that wherein bonds reduces the wearing and tearing of hand.
The utility model discloses a theory of operation and use flow: when the utility model is used, the hot gas generated by the first deaerator 12 is recycled into the heat exchange box 5 provided with the spiral heat exchange tube 16 through the hot gas outlet tube 3, can fully absorb the heat in the hot gas, avoid heat loss, improve the utilization rate of the heat, then utilize the delivery pump 8 for pumping, the water is conveyed into a low-pressure deaerator 6 through a first output pipe 7 for deaerating, in addition, the water drained from the boiler 1 and the water drained from a first deaerator 12 are also connected into a heat exchange box 5, can avoid the waste of water resources, in addition, the generated sewage can be collected by the first sewage discharge branch pipe 14 and the second sewage discharge branch pipe 15 and then discharged into the waste water collecting tank through the sewage discharge main pipe 13, the defect that the discharge to the river channel is easy to cause pollution is avoided, in addition, after cold water is changed into hot water through heat exchange, the water outlet valve can be opened to enable the hot water to flow out of the water outlet pipe 10, and the hot water can be used for chemical production.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a dry quenching boiler exhaust steam waste heat recovery and effluent discharge device which characterized in that: the boiler comprises a boiler (1) and a first deaerator (12), wherein a first drainage pipe (2) is connected to the side wall of the boiler (1), a heat exchange box (5) is connected to one end, far away from the boiler (1), of the first drainage pipe (2), a sealing cover (4) is arranged on the top end cover of the heat exchange box (5), a second drainage pipe (11) is connected between the side wall of the first deaerator (12) and the heat exchange box (5), a hot gas outlet pipe (3) is connected between the top end of the first deaerator (12) and the upper end of the side wall of the heat exchange box (5), one end, far away from the first deaerator (12), of the hot gas outlet pipe (3) is connected with a spiral heat exchange pipe (16), the spiral heat exchange pipe (16) is installed inside the heat exchange box (5), one end, far away from the hot gas outlet pipe (3), of the spiral heat exchange pipe (16) is connected with a second outlet pipe (9), and a conveying pump (8, the output of delivery pump (8) is connected with first output tube (7), the one end that delivery pump (8) were kept away from in first output tube (7) is connected with low pressure oxygen-eliminating device (6).
2. The exhaust steam waste heat recovery and wastewater discharge device of the coke dry quenching boiler as claimed in claim 1, wherein: the bottom of boiler (1) is connected with second blowdown branch pipe (15), the bottom of first oxygen-eliminating device (12) is connected with first blowdown branch pipe (14), the tip of first blowdown branch pipe (14) and second blowdown branch pipe (15) is connected with blowdown house steward (13) through the tee bend head.
3. The exhaust steam waste heat recovery and wastewater discharge device of the coke dry quenching boiler as claimed in claim 1, wherein: the lower end of the front surface wall of the heat exchange box (5) is connected with a water outlet pipe (10), and a water outlet valve is installed on the outer surface wall of the water outlet pipe (10).
4. The exhaust steam waste heat recovery and wastewater discharge device of the coke dry quenching boiler as claimed in claim 1, wherein: transparent observation window (17) are installed to the back table wall of heat transfer case (5), transparent observation window (17) are the rectangle structure.
5. The exhaust steam waste heat recovery and wastewater discharge device of the coke dry quenching boiler as claimed in claim 1, wherein: the upper surface wall of the sealing cover (4) is provided with a handle, and the outer surface wall of the handle is bonded with a rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020549078.XU CN212178843U (en) | 2020-04-15 | 2020-04-15 | Exhaust steam waste heat recovery and wastewater discharge device of dry quenching boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020549078.XU CN212178843U (en) | 2020-04-15 | 2020-04-15 | Exhaust steam waste heat recovery and wastewater discharge device of dry quenching boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212178843U true CN212178843U (en) | 2020-12-18 |
Family
ID=73769411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020549078.XU Expired - Fee Related CN212178843U (en) | 2020-04-15 | 2020-04-15 | Exhaust steam waste heat recovery and wastewater discharge device of dry quenching boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212178843U (en) |
-
2020
- 2020-04-15 CN CN202020549078.XU patent/CN212178843U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201218 |