CN201779674U - Gas type soot blower - Google Patents
Gas type soot blower Download PDFInfo
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- CN201779674U CN201779674U CN201020503348XU CN201020503348U CN201779674U CN 201779674 U CN201779674 U CN 201779674U CN 201020503348X U CN201020503348X U CN 201020503348XU CN 201020503348 U CN201020503348 U CN 201020503348U CN 201779674 U CN201779674 U CN 201779674U
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Abstract
The utility model discloses a gas type soot blower, which aims to solve the problem that the existing gas type soot blower can not be used when the convection section and the preheating section of the tubular heating furnace are wide. The gas type soot blower comprises a transmission system, a gas intake system, a soot blowing pipe and a bracket. A reducer (2) in the transmission system adopts a cycloidal pinwheel reducer, and the gas intake system comprises a first gas intake system and a second gas intake system. The soot blowing pipe comprises a first soot blowing pipe (114) and a second soot blowing pipe (116) which are arranged coaxially, and the first gas intake system and the second gas intake system respectively provide soot blowing gas for the first soot blowing pipe (114) and the second soot blowing pipe (116). A support plate is respectively arranged in the pipe sections at the ends of the first soot blowing pipe and the second soot blowing pipe, and the tips of the ends of the first soot blowing pipe and the second soot blowing pipe are connected into a whole through an end sealing plate (115). The utility model is mainly applied in tubular heating furnaces with wide convection sections and preheating sections (3.5-6m) in the petroleum refining and petrochemical industry, and can effectively remove soot deposits on furnace pipes and heat exchange pipes.
Description
Technical field
The utility model relates to a kind of gas soot blower, relates to the gas soot blower of the dust stratification on the heat exchanger tube in a kind of boiler tube that is used for removing the tubular heater convection section and the preheating section specifically.
Background technology
At petroleum refining and petrochemical industry, along with increasing of the variation of oil property, sulfur content, the ash deposit and slag buildup problem in boiler tube in the tubular heater convection section and the preheating section on the heat exchanger tube is on the rise, and has influenced heat-transfer effect.Under the dust stratification serious situation, the heat-transfer capability of boiler tube and heat exchanger tube approximately reduces by 30%～50%; This will make the thermal efficiency of tubular heater reduce more than 5%, and the fuel consumption of tubular heater accounts for 30%～40% of petroleum refining and petrochemical enterprise total energy consumption.How reducing the dust stratification on boiler tube and the heat exchanger tube effectively, guarantee that the heat transfer efficiency of boiler tube and heat exchanger tube remains on the higher level, is vital for the on-stream time, the fuel savings consumption that prolong tubular heater.
The at present domestic gas soot blower that generally adopts is removed dust stratification on boiler tube and the heat exchanger tube.The disclosed synchronous power save high-efficiency steam of Chinese patent CN201103913Y soot blower is that gear pair drives blowing pipe by tube connector by the motor-driven gear pair, makes it rotation.Motor is driving cam simultaneously, and cam matches with the valve rod system of steam conducting valve, and the valve rod system is worked asynchronously with blowing pipe.Water vapour is removed the dust stratification on boiler tube and the heat exchanger tube by the ejection of the nozzle on the blowing pipe.The DG-III type steam sootblower that domestic use is more, the described soot blower of structure and working method and CN201103913Y is close.The common problem that the above-mentioned gas soot blower exists is, (for example width is 3.5～6 meters) can't use when the width of tubular heater convection section and preheating section is big.In general, when blowing pipe length is 1.1 meters, effectively blows grey radius and can reach 2.5 meters.When blowing pipe length surpasses 4 meters, increase by set thereon quantity of blowing grey nozzle, the pressure that blows ash gas in the blowing pipe will greatly reduce, and effectively blow 1 meter of grey radius less than.It is too little effectively to blow grey radius, and the gas soot blower does not just have and effectively blows the ash effect.And when blowing pipe was longer, under the higher flue-gas temperature environment, blowing pipe was easy to flexural deformation in tubular heater, caused blowing pipe to rotate bite and burnt out motor, and the gas soot blower can not normally be moved.These problems affect the use of gas soot blower, need to improve solve.
Summary of the invention
The purpose of this utility model provides a kind of gas soot blower, to solve the problem that existing gas soot blower can't use when the width of tubular heater convection section and preheating section is big.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of gas soot blower, be provided with transmission system, intake system, blowing pipe and support, transmission system is provided with motor, decelerator, it is characterized in that: described decelerator is the cycloidal-pin wheel decelerator, described gas handling system is made up of first gas handling system and second gas handling system, first gas handling system is provided with the first air inlet pipeline section, the first air inlet pipeline section is provided with first air admission hole, be provided with first air induction mast around the first air inlet pipeline section, the middle part of first air induction mast is first inlet chamber, first inlet chamber communicates with first air admission hole and first air inlet pipe, be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of first air induction mast and the first air inlet pipeline section, first air inlet pipe is provided with first magnetic valve, second gas handling system is provided with the second air inlet pipeline section, the second air inlet pipeline section is provided with second air admission hole, be provided with second air induction mast around the second air inlet pipeline section, the middle part of second air induction mast is second inlet chamber, second inlet chamber communicates with second air admission hole and second air inlet pipe, be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of second air induction mast and the second air inlet pipeline section, second air inlet pipe is provided with second magnetic valve, described blowing pipe is made up of first blowing pipe and second blowing pipe of coaxial setting, the inlet end of first blowing pipe links to each other with an end of the first air inlet pipeline section, the other end sealing of the first air inlet pipeline section, and link to each other with the output shaft of decelerator, be provided with gripper shoe in the pipe of the first blowing pipe end, the inlet end of second blowing pipe links to each other with an end of the second air inlet pipeline section, the other end sealing of the second air inlet pipeline section, be provided with gripper shoe in the pipe of the second blowing pipe end, the termination of first blowing pipe and the second blowing pipe end connects as one by terminal shrouding.
Adopt the utility model, have following beneficial effect: (1) blowing pipe is made up of first blowing pipe and second blowing pipe, and its total length is longer.But the length of first blowing pipe and second blowing pipe is not long, and set quantity of blowing grey nozzle is not a lot of on it; And provide with first gas handling system and second gas handling system respectively and blow ash gas, successively blow ash.Therefore, can keep the higher ash gas pressure that blows in first blowing pipe and second blowing pipe, make and effectively blow grey radius and can reach normal design value more than 2 meters, obtain and blow grey effect preferably.Diastrophic situation when (2) the utility model is in the simply supported beam state according to blowing pipe, in the pipe of first blowing pipe and the second blowing pipe end, be equipped with gripper shoe, and the termination of first blowing pipe and the second blowing pipe end connects as one by terminal shrouding, can resist bending.Therefore, the utility model blowing pipe (being made up of first blowing pipe and second blowing pipe) is though total length is longer, but rigidity has obtained enhancing, is not easy to occur bending and deformation under the higher flue-gas temperature environment in tubular heater, and can avoids the various consequences that cause because of flexural deformation.
Because more than, the utility model can normally use when the width of tubular heater convection section and preheating section is big, existing variety of issue when having solved existing gas soot blower and using under equivalent environment.
The width that the utility model gas soot blower is mainly used in convection section and preheating section in petroleum refining and the petrochemical industry is the tubular heater of big (3.5～6 meters), dust stratification in boiler tube in the efficient removing tubular heater convection section and the preheating section on the heat exchanger tube, the heat transfer efficiency of boiler tube and heat exchanger tube can be remained on the higher level, thus fuel savings consumption.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.The drawings and specific embodiments do not limit the claimed scope of the utility model.
Description of drawings
Fig. 1 is the structural representation of the utility model gas soot blower; Shown in the gas soot blower be installed on the sidewall of tubular heater convection section or preheating section.
The specific embodiment
Referring to Fig. 1, gas soot blower of the present utility model is provided with transmission system, intake system, blowing pipe and support.Transmission system is provided with motor 1, decelerator 2.Wherein decelerator 2 is the cycloidal-pin wheel decelerator, and it can be industrial all kinds commonly used.The utility model adopts the cycloidal-pin wheel decelerator, and reason is its speed reducing ratio big (can reach 700～1500).
Described gas handling system is made up of first gas handling system and second gas handling system.First gas handling system is provided with the first air inlet pipeline section, 3, the first air inlet pipeline sections 3 and is provided with first air admission hole 31.First air admission hole 31 is generally circular port, and diameter is generally 15～20 millimeters, and quantity is generally 4～6.The middle part that is provided with first air induction mast, 92, the first air induction masts 92 around the first air inlet pipeline section 3 is that first inlet chamber, 94, the first inlet chambers 94 communicate with first air admission hole 31 and first air inlet pipe 8.Be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of first air induction mast 92 and the first air inlet pipeline section 3, leak to prevent the ash gas that blows in first inlet chamber 94.Among Fig. 1, set air induction mast airtight and watertight padding is the first air induction mast airtight and watertight padding 93 between the two ends of first air induction mast 92 and the first air inlet pipeline section 3; The first air induction mast airtight and watertight padding 93 is located in two stuffing boxes between first air induction mast, 92 two ends and the first air inlet pipeline section 3, uses respectively with the two ends of first air induction mast 92 and compresses sealing by the first preceding gland 91 and first rear pressing cover 95 that flange is connected.One end of first air inlet pipe 8 is welded in the middle part of first air induction mast 92, the other end (not shown in figure 1) that links to each other with the inlet manifold who blows ash gas.First air inlet pipe 8 is provided with first magnetic valve 7.
Second gas handling system is provided with the second air inlet pipeline section, 14, the second air inlet pipeline sections 14 and is provided with second air admission hole 141.Second air admission hole 141 is generally circular port, and diameter is generally 15～20 millimeters, and quantity is generally 4～6.The middle part that is provided with second air induction mast, 192, the second air induction masts 192 around the second air inlet pipeline section 14 is that second inlet chamber, 191, the second inlet chambers 191 communicate with second air admission hole 141 and second air inlet pipe 17.Be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of second air induction mast 192 and the second air inlet pipeline section 14, leak to prevent the ash gas that blows in second inlet chamber 191.Among Fig. 1, set air induction mast airtight and watertight padding is the second air induction mast airtight and watertight padding 193 between the two ends of second air induction mast 192 and the second air inlet pipeline section 14; The second air induction mast airtight and watertight padding 193 is located in two stuffing boxes between second air induction mast, 192 two ends and the second air inlet pipeline section 14, uses respectively with the two ends of second air induction mast 192 and compresses sealing by the second preceding gland 195 and second rear pressing cover 194 that flange is connected.One end of second air inlet pipe 17 is welded in the middle part of second air induction mast 192, the other end (not shown in figure 1) that links to each other with the inlet manifold who blows ash gas.Second air inlet pipe 17 is provided with second magnetic valve 18.
The second set magnetic valve 18 on set first magnetic valve 7, second air inlet pipe 17 when the medium that blows ash gas is steam (referring to water vapour) or air, can correspondingly adopt steam electromagnetic valve or air magnetic valve on first air inlet pipe 8.Steam electromagnetic valve and air magnetic valve can adopt industrial using always.
First gas handling system of the utility model gas soot blower shown in Figure 1 mainly is made up of the first air inlet pipeline section 3, first air admission hole 31, first air induction mast 92, first inlet chamber 94, first air inlet pipe 8, first magnetic valve 7, the first air induction mast airtight and watertight padding, 93, the first preceding gland 91 and first rear pressing cover 95; Second gas handling system mainly is made up of the second air inlet pipeline section 14, second air admission hole 141, second air induction mast 192, second inlet chamber 191, second air inlet pipe 17, second magnetic valve 18, the second air induction mast airtight and watertight padding, 193, the second preceding gland 195 and second rear pressing cover 194.
Referring to Fig. 1, the blowing pipe of the utility model gas soot blower is made up of first blowing pipe 114 and second blowing pipe 116 of coaxial setting.First blowing pipe 114 is provided with first blowing pipe and blows grey nozzle 113, the second blowing pipes 116 and be provided with second blowing pipe and blow grey nozzle 119; Structure, the size Selection of above-mentioned parts belong to routine techniques.The inlet end of first blowing pipe 114 links to each other by first flange 4 with an end of the first air inlet pipeline section 3.The other end of the first air inlet pipeline section 3 seals with first shrouding 10, and links to each other with the output shaft of decelerator 2 by shaft coupling 210.Be provided with gripper shoe in the pipe of first blowing pipe, 114 ends.The inlet end of second blowing pipe 116 links to each other by second flange 13 with an end of the second air inlet pipeline section 14, and the other end of the second air inlet pipeline section 14 seals with second shrouding 15.Be provided with gripper shoe in the pipe of second blowing pipe, 116 ends.The termination of first blowing pipe 114 and second blowing pipe, 116 ends connects as one by terminal shrouding 115.
The length of first blowing pipe 114 and second blowing pipe 116 generally is 2～3.5 meters, and gets identical numerical value.The total length of first blowing pipe 114 and second blowing pipe 116 (being the total length of the utility model blowing pipe) is generally 4～7 meters.
Referring to Fig. 1, set gripper shoe is first gripper shoe 111 and second gripper shoe 112 of square crossing in the pipe of first blowing pipe, 114 ends.Between first gripper shoe 111 and second gripper shoe 112, between the inside pipe wall of first gripper shoe 111 and second gripper shoe 112 and first blowing pipe, 114 ends and and terminal shrouding 115 between, generally all adopt to be welded to connect.Set gripper shoe is the 3rd gripper shoe 117 and the 4th gripper shoe 118 of square crossing in the pipe of second blowing pipe, 116 ends.Between the 3rd gripper shoe 117 and the 4th gripper shoe 118, between the inside pipe wall of the 3rd gripper shoe 117 and the 4th gripper shoe 118 and second blowing pipe, 116 ends and and terminal shrouding 115 between, generally all adopt to be welded to connect.Between the termination and terminal shrouding 115 of first blowing pipe 114 and second blowing pipe, 116 ends, generally also be to adopt to be welded to connect.The thickness of above-mentioned each gripper shoe and terminal shrouding 115 generally is 3～5 millimeters, and the length of each gripper shoe generally is 80～100 millimeters.
Referring to Fig. 1, the utility model gas soot blower is installed on the sidewall of tubular heater convection section or preheating section, is provided with boiler tube or heat exchanger tube 20 in tubular heater convection section or the preheating section.Blowing pipe is horizontally disposed with, and is passed by the supported hole on front side wall 21 and the rear wall 22.Be provided with between the outside of front side wall 21 and first blowing pipe 114 front side wall sealing 5 (by the stuffing box that is welded in front side wall 21 outsides and in the airtight and watertight padding of establishing form), be provided with between the outside of rear wall 22 and second blowing pipe 116 rear wall sealing 12 (by the stuffing box that is welded in rear wall 22 outsides and in the airtight and watertight padding of establishing form), enter in tubular heater convection section or the preheating section to prevent air.All be preset with sleeve pipe in the supported hole on front side wall 21 and the rear wall 22.Motor 1, decelerator 2 are supported on the fore-stock 6, and first air induction mast 92 and first air inlet pipe 8 are fixed in (not shown in figure 1) on the fore-stock 6 by connector.Second air induction mast 192 and second air inlet pipe 17 are fixed in (not shown in figure 1) on the after-poppet 16 by connector.Fore-stock 6 and after-poppet 16 constitute the support of the utility model gas soot blower; They are steel construction piece, generally are the outsides that is welded on front side wall 21 and rear wall 22 respectively.
The utility model gas soot blower, first blowing pipe 114, second blowing pipe 116, first blowing pipe blow set gripper shoe in the pipe that grey nozzle 113, second blowing pipe blow grey nozzle 119, terminal shrouding 115, first blowing pipe 114 and second blowing pipe, 116 ends, and material generally is heat-resistance stainless steel (for example 1Cr18Ni9Ti).All the other are as parts such as the first air inlet pipeline section 3, the second air inlet pipeline section 14, first air induction mast 92, second air induction mast 192, first air inlet pipe 8, second air inlet pipe 17, fore-stock 6, after-poppets 16, and material generally is carbon steel.
Below in conjunction with description of drawings operating process of the present utility model.Motor 1 starts; The rotating speed of motor 1 output shaft is generally about 1500 rev/mins, slows down through decelerator 2, drives first blowing pipe 114 and the 116 whole rotations of second blowing pipe by the first air inlet pipeline section 3.The rotating speed of first blowing pipe 114 and second blowing pipe 116 is generally 1～2 rev/min.
First magnetic valve 7 is opened (second magnetic valve 18 cuts out), blowing ash gas enters in first blowing pipe 114 through first air inlet pipe 8, first inlet chamber 94, first air admission hole 31, the first air inlet pipeline section 3, blow grey nozzle 113 ejections by first blowing pipe, boiler tube or the heat exchanger tube 20 that is positioned at the left side among Fig. 1 blown ash.First blowing pipe 114 and second blowing pipe 116 rotations, 1～2 week backs (determining) according to dust stratification degree concrete on left side boiler tube or the heat exchanger tube 20, first magnetic valve 7 cuts out, and second magnetic valve 18 is opened.Blow ash gas and enter second blowing pipe 116, blow grey nozzle 119 ejections by second blowing pipe at last, boiler tube or the heat exchanger tube 20 that is positioned at the right side among Fig. 1 blown ash through second air inlet pipe 17, second inlet chamber 191, second air admission hole 141, the second air inlet pipeline section 14.First blowing pipe 114 and second blowing pipe 116 rotate 1～2 week back (determining according to dust stratification degree concrete on right side boiler tube or the heat exchanger tube 20) again, and second magnetic valve 18 cuts out, and motor 1 shuts down simultaneously, finishes and once blows grey process.
In above-mentioned operating process, blow the overheated medium pressure steam of the general employing of medium of ash gas, also can adopt normal temperature compressed air.Inlet manifold's bleed pressure (gauge pressure) generally is 0.7～1.2MPa.
The keying of the startup of motor 1 and stall, first magnetic valve 7 and second magnetic valve 18 all can be adopted conventional electric-control system (for example programmable logic controller (PLC) PLC) control, and drawings and detailed description are omitted.By controlling the keying order of first magnetic valve 7 and second magnetic valve 18, can also use second blowing pipe 116 to blow ash earlier, re-use first blowing pipe 114 and blow ash.Blow the needs of grey occasion according to difference, electric-control system can also be controlled motor 1 just to be changeed, reversing, is rotating in 180 degree or 360 degree scopes, and the rotation that makes first blowing pipe 114 and second blowing pipe 116 produce corresponding manner is to reach the best grey effect of blowing.
Claims (3)
1. gas soot blower, be provided with transmission system, intake system, blowing pipe and support, transmission system is provided with motor (1), decelerator (2), it is characterized in that: described decelerator (2) is the cycloidal-pin wheel decelerator, described gas handling system is made up of first gas handling system and second gas handling system, first gas handling system is provided with the first air inlet pipeline section (3), the first air inlet pipeline section (3) is provided with first air admission hole (31), be provided with first air induction mast (92) around the first air inlet pipeline section (3), the middle part of first air induction mast (92) is first inlet chamber (94), first inlet chamber (94) communicates with first air admission hole (31) and first air inlet pipe (8), be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of first air induction mast (92) and the first air inlet pipeline section (3), first air inlet pipe (8) is provided with first magnetic valve (7), second gas handling system is provided with the second air inlet pipeline section (14), the second air inlet pipeline section (14) is provided with second air admission hole (141), be provided with second air induction mast (192) around the second air inlet pipeline section (14), the middle part of second air induction mast (192) is second inlet chamber (191), second inlet chamber (191) communicates with second air admission hole (141) and second air inlet pipe (17), be respectively equipped with air induction mast airtight and watertight padding and gland between the two ends of second air induction mast (192) and the second air inlet pipeline section (14), second air inlet pipe (17) is provided with second magnetic valve (18), described blowing pipe is made up of first blowing pipe (114) and second blowing pipe (116) of coaxial setting, the inlet end of first blowing pipe (114) links to each other with an end of the first air inlet pipeline section (3), the other end sealing of the first air inlet pipeline section (3), and link to each other with the output shaft of decelerator (2), be provided with gripper shoe in the pipe of first blowing pipe (114) end, the inlet end of second blowing pipe (116) links to each other with an end of the second air inlet pipeline section (14), the other end sealing of the second air inlet pipeline section (14), be provided with gripper shoe in the pipe of second blowing pipe (116) end, the terminal termination of first blowing pipe (114) and second blowing pipe (116) connects as one by terminal shrouding (115).
2. gas soot blower according to claim 1 is characterized in that: the length of first blowing pipe (114) and second blowing pipe (116) is 2～3.5 meters, and the total length of first blowing pipe (114) and second blowing pipe (116) is 4～7 meters.
3. gas soot blower according to claim 1, it is characterized in that: the terminal interior set gripper shoe of pipe of first blowing pipe (114) is first gripper shoe (111) and second gripper shoe (112) of square crossing, the terminal interior set gripper shoe of pipe of second blowing pipe (116) is the 3rd gripper shoe (117) and the 4th gripper shoe (118) of square crossing, the thickness of each gripper shoe and terminal shrouding (115) is 3～5 millimeters, and the length of each gripper shoe is 80～100 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020503348XU CN201779674U (en) | 2010-08-21 | 2010-08-21 | Gas type soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020503348XU CN201779674U (en) | 2010-08-21 | 2010-08-21 | Gas type soot blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779674U true CN201779674U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020503348XU Expired - Lifetime CN201779674U (en) | 2010-08-21 | 2010-08-21 | Gas type soot blower |
Country Status (1)
| Country | Link |
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| CN (1) | CN201779674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748766A (en) * | 2011-04-22 | 2012-10-24 | 中国石油化工股份有限公司 | Air soot blower |
| CN102809166A (en) * | 2011-06-01 | 2012-12-05 | 中国石油化工股份有限公司 | Gas soot blower |
-
2010
- 2010-08-21 CN CN201020503348XU patent/CN201779674U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748766A (en) * | 2011-04-22 | 2012-10-24 | 中国石油化工股份有限公司 | Air soot blower |
| CN102809166A (en) * | 2011-06-01 | 2012-12-05 | 中国石油化工股份有限公司 | Gas soot blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: Sinopec Corp. Co-patentee after: Sinopec Guangzhou Engineering Co., Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: Sinopec Corp. Co-patentee before: Guangzhou Zhongyuan Petroleum and Chemical Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |