CN212713610U

CN212713610U - Generating set with blast furnace gas pretreatment system

Info

Publication number: CN212713610U
Application number: CN202021561285.3U
Authority: CN
Inventors: 张立元; 闫鹏皓
Original assignee: Zhongzhong Taide Energy Group Co ltd
Current assignee: Zhongzhong Taide Energy Group Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-16
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a generating set with blast furnace gas pretreatment systems, include blast furnace gas pretreatment systems and generating set who is connected with the blast furnace in proper order through the pipeline, blast furnace gas pretreatment systems includes first dust collector, second dust collector and dehydrating unit, is provided with blast furnace gas blast pipe on the dehydrating unit, and blast furnace gas blast pipe is last to have parallelly connected exhaust branch, is provided with sampling mechanism on the exhaust branch. The utility model provides a gas after sampling mechanism takes a sample in to blast furnace gas preliminary treatment, during the sample, rotates the mounting disc and can open the thief hole, rotates the mounting disc after the sample is ended and can seal the thief hole, simple structure, convenient operation, each position is sealed well during the sample, is difficult for causing the coal gas to reveal, and the security is high.

Description

Generating set with blast furnace gas pretreatment system

Technical Field

The utility model relates to a coal gas power generation technical field especially relates to a generating set with blast furnace gas pretreatment systems.

Background

The blast furnace gas generator set has higher requirements on gas characteristics, and if the gas contains more moisture and impurities, the gas enters the pressure reducing valve on the premise of no dehumidification, a large amount of water and gas can be brought into the pressure reducing valve, so that the inner core of the pressure reducing valve can be corroded for a long time, the pressure reducing valve fails, and gas leakage is caused; so that blast furnace gas is pre-treated and the gas is collected and chemically analyzed at intervals; however, the existing gas sampling device has a complex structure and complex operation and has certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a generating set with blast furnace gas pretreatment systems to the not enough of above-mentioned prior art.

In order to solve the above problems, the utility model adopts the following technical proposal:

a generator set with a blast furnace gas pretreatment system comprises the blast furnace gas pretreatment system and a generator set which are sequentially connected with a blast furnace through pipelines, wherein the blast furnace gas pretreatment system comprises a first dust removal device, a second dust removal device and a dehumidification device, one end of the first dust removal device is provided with a blast furnace gas inlet pipe, the other end of the first dust removal device is connected with the second dust removal device through a first pipeline, the second dust removal device is connected with the dehumidification device through a second pipeline, a blast furnace gas exhaust pipe is arranged on the dehumidification device, an exhaust branch pipe is connected on the blast furnace gas exhaust pipe in parallel, and a sampling mechanism is arranged on the exhaust branch pipe; the sampling mechanism comprises a sampling buffer tank arranged on the exhaust branch pipe, a mounting disc rotatably arranged at the top of the sampling buffer tank and a sampling pipe arranged on the mounting disc; the utility model discloses a sampling device, including sampling buffer tank, sealed piece, mounting disc, sampling tube, sampling needle, piston plate, sampling buffer tank top is provided with sealed recess, set up on the diapire of sealed recess with the sampling hole that the sampling buffer tank is linked together, be provided with sealed piece in the sealed recess, set up on the sealed piece with the corresponding jack of sampling hole, set up on the mounting disc and run through the fixed orifices of mounting disc, the sampling tube is inserted and is located in the fixed orifices, the lower extreme of sampling tube be provided with the sample needle of jack looks adaptation, it is provided with the piston plate to slide in the sampling tube, the one end of piston plate is.

Furthermore, a guide block is arranged on the outer side wall of the sampling tube, a guide groove matched with the guide block is formed in the inner side wall of the fixing hole, a clamping groove matched with the guide block is formed in the bottom of the fixing hole, and the guide groove is communicated with the clamping groove.

Furthermore, a first control valve and a second control valve are arranged on the exhaust branch pipe, the first control valve is located at the air inlet end of the sampling mechanism, and the second control valve is located at the exhaust end of the sampling mechanism.

Further, the first dust removal device is one or two of a gravity dust remover and a bag-type dust remover.

Furthermore, the second dust collector comprises an atomization spray box, a spray pipe is arranged on the inner top wall of the atomization spray box, a plurality of atomization spray heads are arranged on the spray pipe, and the water inlet end of the spray pipe penetrates out of the top plate of the atomization spray box and then is connected with the high-pressure water tank.

Furthermore, the atomization spraying box is internally provided with two or more porous filter plates, and the air holes in the adjacent porous filter plates are arranged in a staggered manner.

Furthermore, the bottom plate of the atomization spraying box is inclined towards one side, a drain pipe is arranged below the lower end of the bottom plate of the atomization spraying box, and a drain valve is arranged on the drain pipe.

Further, the dehumidifying device is a dehumidifier.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the sampling mechanism in the utility model samples the gas pretreated by the blast furnace gas, when sampling, the sampling hole can be opened by rotating the mounting disc, and the sampling hole can be closed by rotating the mounting disc after sampling, the structure is simple, the operation is convenient, each part is well sealed during sampling, the gas leakage is not easy to cause, and the safety is high; and the sampling mechanism is arranged on the exhaust branch pipe of the blast furnace gas exhaust pipe, so that when parts of the sampling mechanism are replaced, the operation of the whole gas pretreatment system is not influenced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a sampling mechanism of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of the mounting plate of the present invention;

FIG. 5 is a schematic view of a sampling tube according to the present invention;

fig. 6 is a schematic structural view of the second dust removing device of the present invention.

In the figure: 1. a first dust removing device; 2. a second dust removing device; 3. a dehumidifying device; 4. a blast furnace gas inlet pipe; 5. A first conduit; 6. a second conduit; 7. blast furnace gas exhaust pipes; 8. an exhaust branch pipe; 9. a sampling buffer tank; 10. mounting a disc; 11. a sampling tube; 12. a sampling hole; 13. a sealing block; 14. a jack; 15. a fixing hole; 16. a sampling needle; 17. a piston plate; 18. a pull rod; 19. a pressing plate; 20. a guide block; 21. a guide groove; 22. a card slot; 23. a first control valve; 24. a second control valve; 25. a spray box; 26. a shower pipe; 27. an atomizing spray header; 28. a high pressure water tank; 29. a porous filter plate; 30. A blow-off pipe; 31. a blowoff valve; 32. a blast furnace; 33. and (4) a generator set.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-6, the present invention is a specific embodiment of a generator set with a blast furnace gas pretreatment system, including a blast furnace gas pretreatment system and a generator set 33 sequentially connected with a blast furnace 32 through a pipeline, the blast furnace gas pretreatment system includes a first dust collector 1, a second dust collector 2 and a dehumidifier 3, one end of the first dust collector 1 is provided with a blast furnace gas inlet pipe 4, the other end of the blast furnace gas inlet pipe 4 is connected with a blast furnace exhaust port, the other end of the first dust collector 1 is connected with the second dust collector 2 through a first pipeline 5, the second dust collector 2 is connected with the dehumidifier 3 through a second pipeline 6, the dehumidifier 3 is provided with a blast furnace gas exhaust pipe 7, the blast furnace gas exhaust pipe 7 is connected with a pressure reducing valve set, the blast furnace gas exhaust pipe 7 is connected in parallel with an exhaust branch pipe 8, a sampling mechanism is arranged on the exhaust branch pipe 8; the sampling mechanism comprises a sampling buffer tank 9 arranged on the exhaust branch pipe 8, an installation disc 10 rotatably arranged at the top of the sampling buffer tank 9 and a sampling pipe 11 arranged on the installation disc 10, the upper end surface of the sampling buffer tank is attached to the lower end surface of the installation disc, a fixed shaft is arranged at the center of the top of the sampling buffer tank, a shaft hole is correspondingly formed in the installation disc, and the installation disc is rotatably arranged on the fixed shaft through a bearing; the utility model discloses a sampling device, including sampling buffer tank 9, sealed recess, mounting disc 10, sampling hole 12, sealed piece 13, jack 14, piston plate 17, sampling tube 11, sampling needle 16, piston plate 17, sampling tube 18, push plate 19, sampling tube 18, sampling buffer tank 9 top is provided with sealed recess, set up on the diapire of sealed recess with sampling hole 12 that sampling buffer tank 9 is linked together, be provided with sealed piece 13 in the sealed recess, set up on the sealed piece 13 with jack 14 that sampling hole 12 is corresponding, set up on the mounting disc 10 and run through the fixed orifices 15 of mounting disc 10, sampling tube 11 inserts and locates in the fixed orifices 15, the lower extreme of sampling tube 11 be provided with the sample needle 16 of jack 14 looks adaptation, it is provided with piston.

Furthermore, the outer side wall of the sampling tube 11 is symmetrically provided with guide blocks 20 at two sides, the inner side wall of the fixing hole 15 is provided with a guide groove 21 matched with the guide blocks 20, the bottom of the fixing hole 15 is provided with a clamping groove 22 matched with the guide blocks 20, and the guide groove 21 is communicated with the clamping groove 22.

Furthermore, a first control valve 23 and a second control valve 24 are arranged on the exhaust branch pipe 8, the first control valve 23 is located at the air inlet end of the sampling mechanism, the second control valve 24 is located at the exhaust end of the sampling mechanism, and when sampling is not performed, the first control valve and the second control valve are in a closed state.

Further, sample buffer tank 9 is cylindric structure, with the big or small looks adaptation of mounting disc 10, is provided with ring seal at sample buffer tank and mounting disc junction, strengthens the sealing performance of sampling mechanism, prevents that coal gas from revealing.

Furthermore, a sealing gasket is arranged on the lower end face of the mounting disc 10, a through hole corresponding to the fixing hole is formed in the sealing gasket, and the sealing performance between the mounting disc and the sampling buffer tank is improved due to the arrangement of the sealing gasket.

Furthermore, the rotating disc and the side wall of the sampling buffer tank are correspondingly provided with positioning lines, and when the rotating disc is rotated to enable the positions of the two positioning lines to coincide, the fixing hole in the rotating disc and the sampling hole in the sampling buffer tank are coaxial.

Furthermore, the side wall of the sampling tube is provided with scale marks, so that the gas to be detected can be quantitatively extracted.

Before sampling, the utility model rotates the mounting plate to make the fixing hole on the mounting plate and the sampling hole on the sampling buffer tank be coaxially arranged, the sampling tube is inserted into the fixing hole and rotates after being inserted into the bottom, the guide block is clamped in the clamping groove, at the moment, the bottom of the sampling tube is tightly pressed and sealed with the sealing block, the sampling tube is fixed on the mounting plate without being held by an operator, the operation is convenient, the lower end of the sampling needle passes through the jack and the sampling hole and then is inserted into the sampling buffer tank, the first control valve and the second control valve are opened, the blast furnace gas passes through the exhaust branch tube and the sampling buffer tank, the operation is carried out for a certain time, the piston plate is pushed and pulled for several times to exhaust the air in the sampling tube, after one end of the operation, the first control valve and the second control valve are closed, the gas to be measured is extracted according to a certain amount, after the operation is finished, the sampling tube is, the accuracy of the gas to be measured is guaranteed, the mounting disc is rotated, the fixing hole and the sampling hole are staggered, and the sealing gasket on the lower end face of the mounting disc seals the insertion hole to prevent gas leakage.

Furthermore, the first dust removing device 1 is one or two of a gravity dust remover and a bag-type dust remover, and can be used for rough dust removing treatment to quickly remove a large amount of dust in blast furnace gas.

Further, the second dust removing device 2 comprises an atomization spray box 25, a spray pipe 26 is arranged on the inner top wall of the atomization spray box 25, a plurality of atomization spray heads 27 are arranged on the spray pipe 26, and the water inlet end of the spray pipe 26 penetrates out of the top plate of the atomization spray box 25 and then is connected with a high-pressure water tank 28. Two or more porous filter plates 29 are arranged in the atomization spraying box 25, the air holes in the adjacent porous filter plates 29 are arranged in a staggered mode, the air holes are horn-shaped, the inlet end is large, the outlet end is small, and dust in atomized water and coal gas can be condensed and drip at the porous filter plates. The bottom plate of the atomization spraying box 25 is arranged to incline to one side, a blow-off pipe 30 is arranged below the lower end of the bottom plate of the atomization spraying box 25, a blow-off valve 31 is arranged on the blow-off pipe 30, the atomization spraying is carried out, less wastewater is generated, the sewage treatment cost is reduced, and the environment protection is facilitated.

Furthermore, the dehumidifying device 3 is a dehumidifier, so that moisture in blast furnace gas is removed, damage to equipment is reduced, equipment replacement is reduced, and the working efficiency is improved.

Furthermore, a third control valve is arranged on the blast furnace gas inlet pipe, a fourth control valve is arranged on the first pipeline, a fifth control valve is arranged on the second pipeline, and a sixth control valve is arranged on the blast furnace gas exhaust pipe.

The utility model discloses work flow:

the blast furnace gas coming out of the blast furnace is settled by a gravity dust collector of a first dust collector, then enters a second dust collector, is sprayed by an atomizing spray header, and is removed of dust and impurities in the blast furnace gas again, the blast furnace gas sprayed by atomization enters a dehumidifier for dehumidification, then a first control valve and a second control valve are periodically opened, a sampling mechanism samples the pretreated blast furnace gas, and the pretreated blast furnace gas enters a generator set through a pressure reducing valve set for power generation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A generator set with a blast furnace gas pretreatment system comprises the blast furnace gas pretreatment system and a generator set (33) which are sequentially connected with a blast furnace (32) through pipelines, it is characterized in that the blast furnace gas pretreatment system comprises a first dust removal device (1), a second dust removal device (2) and a dehumidification device (3), one end of the first dust removing device (1) is provided with a blast furnace gas inlet pipe (4), the other end of the first dust removing device (1) is connected with the second dust removing device (2) through a first pipeline (5), the second dust removal device (2) is connected with the dehumidification device (3) through a second pipeline (6), a blast furnace gas exhaust pipe (7) is arranged on the dehumidifying device (3), an exhaust branch pipe (8) is connected in parallel on the blast furnace gas exhaust pipe (7), and a sampling mechanism is arranged on the exhaust branch pipe (8); the sampling mechanism comprises a sampling buffer tank (9) arranged on the exhaust branch pipe (8), a mounting disc (10) rotatably arranged at the top of the sampling buffer tank (9) and a sampling pipe (11) arranged on the mounting disc (10); the utility model discloses a sampling device, including sampling buffer tank (9), sealed piece (13), jack (14) corresponding with sampling hole (12), set up on sealed recess on the diapire of sealed recess with sampling buffer tank (9) are linked together sampling hole (12), be provided with sealed piece (13) in the sealed recess, set up on sealed piece (13) and run through fixed orifices (15) of mounting disc (10), sampling tube (11) are inserted and are located in fixed orifices (15), the lower extreme of sampling tube (11) be provided with sample needle (16) of jack (14) looks adaptation, it is provided with piston plate (17) to slide in sampling tube (11), the one end of piston plate (17) is provided with pull pole (18), the other end of pull pole (18) is provided with and presses down board (19).

2. The generator set with the blast furnace gas pretreatment system according to claim 1, wherein a guide block (20) is arranged on an outer side wall of the sampling tube (11), a guide groove (21) matched with the guide block (20) is formed on an inner side wall of the fixing hole (15), a clamping groove (22) matched with the guide block (20) is formed at the bottom of the fixing hole (15), and the guide groove (21) is communicated with the clamping groove (22).

3. The power generation set with a blast furnace gas pretreatment system according to claim 1, characterized in that a first control valve (23) and a second control valve (24) are provided on the exhaust branch pipe (8), the first control valve (23) is located at the gas inlet end of the sampling mechanism, and the second control valve (24) is located at the exhaust end of the sampling mechanism.

4. The power plant with a blast furnace gas pretreatment system according to claim 1, characterized in that the first dust removal device (1) is one or both of a gravity dust remover and a bag-type dust remover.

5. The generator set with the blast furnace gas pretreatment system according to claim 1, wherein the second dust removal device (2) comprises an atomization spray box (25), a spray pipe (26) is arranged on the inner top wall of the atomization spray box (25), a plurality of atomization spray headers (27) are arranged on the spray pipe (26), and the water inlet end of the spray pipe (26) penetrates through the top plate of the atomization spray box (25) and then is connected with a high-pressure water tank (28).

6. The power generation unit with blast furnace gas pretreatment system according to claim 5, characterized in that two or more perforated filter plates (29) are provided in the atomization spray box (25), and the ventilation holes of adjacent perforated filter plates (29) are arranged in a staggered manner.

7. The generator set with the blast furnace gas pretreatment system according to claim 5, characterized in that the bottom plate of the atomization spray box (25) is inclined to one side, a drain pipe (30) is arranged below the lower end of the bottom plate of the atomization spray box (25), and a drain valve (31) is arranged on the drain pipe (30).

8. The power plant with a blast furnace gas pretreatment system according to claim 1, characterized in that the dehumidifying device (3) is a dehumidifier.