CN211141973U - Combined type coal gas primary cooler and system thereof - Google Patents
Combined type coal gas primary cooler and system thereof Download PDFInfo
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- CN211141973U CN211141973U CN201921320127.6U CN201921320127U CN211141973U CN 211141973 U CN211141973 U CN 211141973U CN 201921320127 U CN201921320127 U CN 201921320127U CN 211141973 U CN211141973 U CN 211141973U
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Abstract
The utility model discloses a combined type coal gas primary cooler and a system thereof, the combined type coal gas primary cooler comprises a primary cooler shell, a heat exchange pipe arranged in the primary cooler shell, a mixed liquid spraying mechanism, a broken tower disc arranged at the downstream of the heat exchange pipe and a slag remover positioned at the lower side surface of the broken tower disc; the mixed liquid spraying mechanism comprises a spray pipe and a nozzle connected with the spray pipe, and the nozzle is arranged at the upper end of the heat exchange pipe; the utility model arranges the heat exchange tube, the mixed liquid spraying mechanism, the broken tower tray arranged at the downstream of the heat exchange tube and the slag remover positioned at the lower side surface of the broken tower tray in the primary cooler shell; the broken tower tray is provided with an umbrella-shaped upper layer plate body and an umbrella-shaped lower layer plate body, the washed washing liquid flows on the upper layer plate body and the lower layer plate body, and the washed washing liquid is discharged out of the shell of the primary cooler through a slag remover; the defect that corrosive substances in the coal gas block the pipeline is fully reduced, and the service life of the composite coal gas primary cooler is prolonged.
Description
Technical Field
The utility model relates to a combined type coal gas primary cooler and system especially relate to a combined type coal gas primary cooler and system that coal gas in the coke oven purifies.
Background
In the prior art, the temperature of raw coke oven gas from a coke oven is above 80 ℃ before entering a purification process, the gas also contains a large amount of tar vapor and ammonia-containing water vapor, the gas is further cooled in a primary cooler, most of the tar vapor and the ammonia-containing water vapor are condensed, the primary cooler is one of important devices for gas purification, if the temperature, naphthalene, dust and the like of the gas in the primary cooler do not meet the requirements of process conditions, the normal operation of a gas conveying and gas rear purification system is seriously influenced, the naphthalene and dust in the gas easily block a rear tower and a heat exchanger, and the efficiency of desulfurization, ammonia washing and benzene washing is obviously reduced, so that the quality of the outgoing gas cannot reach the standard, even the operation of an air blower is endangered, and the corrosion of a pipe network and crude benzene devices is caused, and therefore, the primary cooling process is the basis for gas purification.
The primary cooler of present coking process adopts horizontal tubular primary cooler more, ubiquitous leakage, jam, corruption scheduling problem, must carry out whole changes to the heat transfer pipe moreover about every 3 years.
Therefore, it is necessary to design a composite gas primary cooler to improve the problems of leakage, blockage, corrosion and other defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve and block up and increase of service life's combined type coal gas primary cooler and system thereof.
In order to achieve the above purpose, the utility model has the following technical scheme: a combined type coal gas primary cooler comprises a primary cooler shell, a heat exchange tube arranged in the primary cooler shell, a mixed liquid spraying mechanism, a broken tower disc arranged at the downstream of the heat exchange tube and a slag remover positioned on the lower side surface of the broken tower disc; the primary cooler shell is provided with an air inlet at the upper end, an air outlet at the lower end and a liquid discharge pipe outlet; the heat exchange tube is provided with an inlet tube and an outlet tube which extend out of the primary cooler shell; the mixed liquid spraying mechanism comprises a spray pipe and a nozzle connected with the spray pipe, and the nozzle is arranged at the upper end of the heat exchange pipe; the broken tower tray is provided with at least two layers of plate bodies, namely an upper layer plate body and a lower layer plate body which are arranged in the vertical direction, the upper layer plate body and the lower layer plate body are of umbrella-shaped structures and are partially overlapped in the vertical direction, and a channel for gas to flow is formed between the upper layer plate body and the lower layer plate body; the slag remover is provided with a discharge pipe communicated with the outlet of the liquid discharge pipe of the primary cooling air shell and a spiral conveying device communicated with the discharge pipe.
The further improvement scheme comprises: one end of a lower plate body of the broken tower disc is fixed with the inner wall of the primary cooler shell, and an outlet of the liquid discharge pipe is arranged at the joint of the lower plate body and the primary cooler shell and is positioned on the upper side of the lower plate body.
The further improvement scheme comprises: the composite type coal gas primary cooler is further provided with a lower-layer mixed liquid spraying mechanism, a lower-layer heat exchange pipe and a tail end liquid discharge pipe outlet positioned on the lower side; the lower-layer mixed liquid spraying mechanism is arranged at the lower end of a lower-layer plate body of the broken tower tray, the lower-layer mixed liquid spraying mechanism is provided with a lower spray pipe and a lower nozzle connected with the lower spray pipe, and the lower nozzle is positioned at the upper end of the lower-layer heat exchange pipe.
The further improvement scheme comprises: the lower heat exchange tube has a lower inlet tube and a lower outlet tube extending out of the primary cooler housing.
The further improvement scheme comprises: and the other end of the lower plate body of the broken tray is upwards convexly provided with a bulge.
In order to achieve the above purpose, the utility model discloses combined type coal gas primary cooler system also can adopt following scheme: a combined type gas primary cooler system comprises all technical characteristics of the combined type gas primary cooler and a condensate circulating groove connected with the combined type gas primary cooler, wherein a discharge pipe of a slag remover is communicated into the condensate circulating groove.
The further improvement scheme comprises: the condensate circulating groove is provided with an upper section condensate circulating groove and a lower end condensate circulating groove; the combined type coal gas primary cooler system comprises a water seal tank, a liquid discharge pipe and a connecting pipe, wherein the liquid discharge pipe is communicated with an outlet of a tail end liquid discharge pipe of the primary cooler shell to the water seal tank, and the connecting pipe is communicated with the water seal tank and a lower condensate circulating tank.
The further improvement scheme comprises: and a spray pipe of the mixed liquid spraying mechanism is connected to the upper-section condensate circulation tank.
The further improvement scheme comprises: and a lower spray pipe of the lower-layer spraying mechanism is connected to the lower section condensate circulation tank.
The utility model discloses a combined type coal gas primary cooler and system thereof has following beneficial effect: the utility model arranges the heat exchange tube, the mixed liquid spraying mechanism, the broken tower tray arranged at the downstream of the heat exchange tube and the slag remover close to the broken tower tray in the primary cooler shell; the broken tower tray is provided with an umbrella-shaped upper layer plate body and an umbrella-shaped lower layer plate body, the washed washing liquid flows on the upper layer plate body and the lower layer plate body, and the washed washing liquid is discharged out of the shell of the primary cooler through a slag remover; the defect that corrosive substances in the coal gas block the pipeline is fully reduced, so that the service life of the composite coal gas primary cooler is prolonged.
Drawings
FIG. 1 is a schematic flow chart of the combined type gas primary cooler system of the present invention;
fig. 2 is a partial structural schematic view of the composite gas primary cooler shown in fig. 1.
Detailed Description
Please refer to fig. 1 and fig. 2, which are schematic diagrams of a combined type gas primary cooler system disclosed in the present invention, the combined type gas primary cooler comprises a primary cooler housing 1, a heat exchange tube 2 disposed in the primary cooler housing, a mixed liquid spraying mechanism 3, a broken tray 4 disposed at the downstream of the heat exchange tube, and a slag remover 5 located at the lower side of the broken tray, and the combined type gas primary cooler system is provided with a combined type gas primary cooler and a condensate circulation tank 6 connected with the combined type gas primary cooler. In this embodiment, the composite gas primary cooler may be defined as a two-stage shell, i.e. the shell is bounded by the tray 4, the upper side may be defined as the upper-stage shell, and the lower side may be defined as the lower-stage shell.
The primary cooler shell 1 is provided with an air inlet 10 at the upper end, an air outlet 11 at the lower end and a liquid discharge pipe outlet 12; the air inlet 10 is communicated with an air inlet pipe 13, the air outlet 11 is communicated with an air outlet pipe 14, so that the coal gas entering the primary cooler shell 1 is discharged out of the primary cooler shell 1 from the air outlet 11 and the air outlet pipe 14 after the processes of heat exchange, slag removal and the like are carried out.
The heat exchange tube 2 has an inlet tube 21 and an outlet tube 22 extending out of the primary cooler housing 1. The mixed liquid spraying mechanism 3 comprises a spray pipe 31 and a nozzle 32 connected with the spray pipe, and the nozzle 32 is arranged at the upper end of the heat exchange pipe 2. In the present embodiment, the composite gas primary cooler is further provided with a lower mixed liquid spraying mechanism 33 and a lower heat exchange pipe 23 in the lower shell; the lower mixed liquid spraying mechanism 33 is arranged at the downstream of the broken tray 4, the lower mixed liquid spraying mechanism 33 is provided with a lower spray pipe 35 and a lower nozzle 34 connected with the lower spray pipe 35, the lower nozzle 34 is positioned at the upper end of the lower heat exchange pipe 23, and the lower heat exchange pipe 23 is also provided with a lower inlet pipe 24 and a lower outlet pipe 25 which extend out of the primary cooler shell 1.
The column breaker 4 has at least two layers of plate bodies, namely an upper plate body 41 and a lower plate body 42 which are arranged in the up-down direction, the upper plate body 41 and the lower plate body 42 are in umbrella-shaped structures, and are partially overlapped in the up-down direction, a channel 43 through which gas (gas) passes is formed between the upper plate body 41 and the lower plate body 42, the upper plate body 41 and the lower plate body 42 are in umbrella-shaped structures, which is beneficial to the flowing of mixture liquid, the gas and spray liquid are divided by the device, the gas enters the lower shell of the shell through the channel 43 to continue cooling, and the spray liquid of the upper shell enters the upper condensate circulating groove 61 through the slag remover 5 and the discharge pipe 51. When the coal gas in the gas inlet pipe 13 enters the primary cooler casing 1, the mixed liquid is sprayed through the nozzle 32 of the mixed liquid spraying mechanism 3, the mixed liquid can wash the coal gas, and the coal powder or coke powder in the coal gas and the sprayed liquid are mixed together and flow on the upper plate body 41 or the lower plate body 42, and the purified coal gas can flow into the next process through the channel 43 between the upper plate body 41 and the lower plate body 42. In the present embodiment, the tower breaking tray 4 has a multi-layer structure to sufficiently perform a washing effect on the gas, and the washed liquid is discharged through the slag remover 5 to prevent clogging, which will be described in detail later.
The slag remover 5 is provided with a discharge pipe 51 communicated with the discharge pipe outlet 12 of the primary cooling air shell 1 and a spiral conveying device 52 communicated with the discharge pipe, and the discharge pipe 51 of the slag remover 5 is communicated to the condensate circulating groove 6, so that the next process treatment is facilitated.
The condensate circulation tank 6 is provided with an upper section condensate circulation tank 61 and a lower end condensate circulation tank 62; the composite gas primary cooler 100 comprises a water seal tank 7, a liquid discharge pipe 8 and a connecting pipe 9, wherein the liquid discharge pipe 8 is communicated with a tail end liquid discharge pipe outlet 16 at the lower end of a primary cooler shell 1 to the inside of the water seal tank 8 (when the composite gas primary cooler has two sections of cooling structures, the tail end liquid discharge pipe outlet 16 of the primary cooler shell 1 discharges washing liquid out of the primary cooler shell), and the connecting pipe 9 is communicated with the water seal tank 7 and a lower end condensate circulation tank 61; the spray pipe 31 of the mixed liquid spraying mechanism 3 is connected to the upper-section condensate circulation tank 61; and the lower spray pipe 34 of the lower spraying mechanism 33 is connected to the lower condensate circulating tank 62 so as to recycle the spraying liquid.
One end of a lower plate body 42 of the broken tower disc 4 is fixed with the inner wall of the primary cooler shell 1, the other end of the lower plate body 42 is provided with a protrusion 44 in an upward protruding mode, a liquid discharge pipe outlet 12 of the primary cooler shell 1 is arranged at the joint of the lower plate body 42 and the primary cooler shell 1 and is positioned at the upper end of the lower plate body 1, so that washed liquid and residues are conveniently left on the upper plate body and are discharged through a slag remover 5, and the residues are prevented from blocking the primary cooler shell; the projection 44 is provided to prevent the liquid from flowing into the lower space through the passage 43, thereby facilitating the discharge of the washed residue to the outside of the primary cooler casing 1 as much as possible.
The utility model arranges the heat exchange tube 2, the mixed liquid spraying mechanism 3, the broken tower tray 4 arranged at the downstream of the heat exchange tube and the slag remover 5 positioned at the lower side surface of the broken tower tray in the primary cooler shell 1; the tower-breaking tray 4 is provided with an upper-layer plate body 41 and a lower-layer plate body 42 which are umbrella-shaped, the washed washing liquid flows on the upper-layer plate body 41 and the lower-layer plate body 42, and the washed washing liquid is discharged out of the primary cooler shell 1 through a slag remover 5; the washed and purified gas (the purified gas can be called as gas) flows into the lower section of the washing pipe through the channel 43, the inlet pipe 21 of the heat exchange pipe 2 is arranged for supplying circulating water, and circulating water is returned through the outlet pipe 22, so that the gas is fully cooled and cooled; the problem that corrosive substances in the coal gas block the pipeline is fully reduced, so that the service life of the composite coal gas primary cooler is prolonged.
In this embodiment, when the gas is further purified, a lower layer mixed liquid spraying mechanism 33 and a lower layer heat exchange tube 23 are further disposed downstream of the broken tray 4, and a lower nozzle 34 of the lower layer mixed liquid spraying mechanism 33 further sprays and washes the purified gas, and circulating water is supplied to a lower layer inlet tube 24 of the lower layer heat exchange tube 23, and circulating water is returned through a lower layer outlet tube 25 to cool the gas again, so that the discharged gas meets the environmental protection standard.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (9)
1. A combined type coal gas primary cooler is characterized in that: comprises a primary cooler shell, a heat exchange tube arranged in the primary cooler shell, a mixed liquid spraying mechanism, a broken tower tray arranged at the downstream of the heat exchange tube and a slag remover positioned at the lower side surface of the broken tower tray;
the primary cooler shell is provided with an air inlet at the upper end, an air outlet at the lower end and a liquid discharge pipe outlet;
the heat exchange tube is provided with an inlet tube and an outlet tube which extend out of the primary cooler shell;
the mixed liquid spraying mechanism comprises a spray pipe and a nozzle connected with the spray pipe, and the nozzle is arranged at the upper end of the heat exchange pipe;
the broken tower tray is provided with at least two layers of plate bodies, namely an upper layer plate body and a lower layer plate body which are arranged in the vertical direction, the upper layer plate body and the lower layer plate body are of umbrella-shaped structures and are partially overlapped in the vertical direction, and a channel for gas to flow is formed between the upper layer plate body and the lower layer plate body; the slag remover is provided with a discharge pipe communicated with the outlet of the liquid discharge pipe of the primary cooling air shell and a spiral conveying device communicated with the discharge pipe.
2. The composite gas primary cooler of claim 1, wherein: one end of a lower plate body of the broken tower disc is fixed with the inner wall of the primary cooler shell, and an outlet of the liquid discharge pipe is arranged at the joint of the lower plate body and the primary cooler shell and is positioned on the upper side of the lower plate body.
3. The composite gas primary cooler of claim 1, wherein: the composite type coal gas primary cooler is further provided with a lower-layer mixed liquid spraying mechanism, a lower-layer heat exchange pipe and a tail end liquid discharge pipe outlet positioned on the lower side; the lower-layer mixed liquid spraying mechanism is arranged at the lower end of a lower-layer plate body of the broken tower tray, the lower-layer mixed liquid spraying mechanism is provided with a lower spray pipe and a lower nozzle connected with the lower spray pipe, and the lower nozzle is positioned at the upper end of the lower-layer heat exchange pipe.
4. The composite gas primary cooler of claim 3, wherein: the lower heat exchange tube has a lower inlet tube and a lower outlet tube extending out of the primary cooler housing.
5. The composite gas primary cooler of claim 2, wherein: and the other end of the lower plate body of the broken tray is upwards convexly provided with a bulge.
6. A composite gas primary cooler system comprising a composite gas primary cooler as set forth in any one of claims 1 to 5 and a condensate circulation tank connected to the composite gas primary cooler, wherein a discharge pipe of the slag remover is connected to the condensate circulation tank.
7. The composite gas primary cooler system as set forth in claim 6, wherein: the condensate circulating groove is provided with an upper section condensate circulating groove and a lower end condensate circulating groove; the combined type coal gas primary cooler system comprises a water seal tank, a liquid discharge pipe and a connecting pipe, wherein the liquid discharge pipe is communicated with an outlet of a tail end liquid discharge pipe of the primary cooler shell to the water seal tank, and the connecting pipe is communicated with the water seal tank and a lower condensate circulating tank.
8. The composite gas primary cooler system as set forth in claim 7, wherein: and a spray pipe of the mixed liquid spraying mechanism is connected to the upper-section condensate circulation tank.
9. The composite gas primary cooler system as set forth in claim 7, wherein: and a lower spray pipe of the lower-layer spraying mechanism is connected to the lower-section condensate circulation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320127.6U CN211141973U (en) | 2019-08-14 | 2019-08-14 | Combined type coal gas primary cooler and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921320127.6U CN211141973U (en) | 2019-08-14 | 2019-08-14 | Combined type coal gas primary cooler and system thereof |
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| CN211141973U true CN211141973U (en) | 2020-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484309A (en) * | 2019-08-14 | 2019-11-22 | 昆山市三维换热器有限公司 | Combined type coal gas primary cooler and its system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484309A (en) * | 2019-08-14 | 2019-11-22 | 昆山市三维换热器有限公司 | Combined type coal gas primary cooler and its system |
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