CN217107493U - Flue gas pipeline corrosion prevention device - Google Patents
Flue gas pipeline corrosion prevention device Download PDFInfo
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- CN217107493U CN217107493U CN202220945923.4U CN202220945923U CN217107493U CN 217107493 U CN217107493 U CN 217107493U CN 202220945923 U CN202220945923 U CN 202220945923U CN 217107493 U CN217107493 U CN 217107493U
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- flue gas
- impeller
- corrosion prevention
- gas pipeline
- ventilation blower
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Abstract
The utility model provides a flue gas pipeline corrosion prevention device, including ventilation blower, hot wall flue, waterproof flange, the ventilation blower carries out anticorrosive sealing connection with hot wall flue through waterproof flange, the ventilation blower includes casing, impeller, motor, the casing has the inner chamber, the impeller is set up in the inner chamber with the mode that can rotate, the motor is connected with the impeller, provides power support for the rotation of impeller, the internal surface of casing, the outer wall of impeller all set up the anticorrosive coating, the casing sets up drain; the utility model discloses a set up the anticorrosive coating with casing internal surface, impeller outer wall, can carry the wet flue gas in-process of low temperature at the ventilation blower, carry out the inside whole anticorrosive of ventilation blower to condensate water effectively, even acid condensate liquid, simultaneously through setting up drain, can in time discharge the condensate liquid that collects effectively in the ventilation blower inner chamber, avoid the condensate liquid to cause the interference to the operation of ventilation blower to the guarantee ventilation blower can continuously function effectively.
Description
Technical Field
The utility model relates to a flue gas pipeline corrosion prevention device particularly, relates to a be applied to flue gas pipeline corrosion prevention device under the wet flue gas operating mode of low temperature.
Background
In industrial processes, ventilators are often used to change the pressure of the gas and to discharge the gas by means of mechanical energy input. Ventilators are used in a wide variety of fields, such as ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught in boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and separation of grains, wind tunnel wind sources and aeration and propulsion of air cushion boats, etc.
The ventilator is applied to the low-temperature and wet flue gas, and the water vapor in the low-temperature and wet flue gas is easy to condense, and meanwhile, the flue gas in the industrial field contains acidic gas, so that acidic liquid is easy to generate in the condensing process, and the ventilator is often influenced by condensed water in the ventilator in the process of conveying the low-temperature and wet flue gas, even corroded by the acidic liquid and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a flue gas pipeline corrosion prevention device to solve among the prior art ventilation blower and carrying the wet flue gas in-process of low temperature, the influence of its inside condensate water, even the corruption scheduling problem of acid liquid.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a flue gas pipeline corrosion prevention device, includes ventilation blower, hot wall flue, waterproof flange, the ventilation blower carries out anticorrosive sealing connection through waterproof flange and hot wall flue, the ventilation blower includes casing, impeller, motor, the casing has the inner chamber, the impeller is set up in the inner chamber with the mode that can rotate, the motor is connected with the impeller, provides power support for the rotation of impeller, the internal surface of casing, the outer wall of impeller all set up the anticorrosive coating, the casing sets up drain.
Furthermore, the liquid discharge device is a U-shaped water seal, a liquid inlet side pipe of the U-shaped water seal is connected with the bottom of the shell and communicated with the inner cavity, and a liquid outlet side pipe of the U-shaped water seal is communicated with the external environment.
Furthermore, in the vertical direction, the lowest point of the water path in the U-shaped water seal is lower than the position of the liquid outlet side pipe, and the position of the liquid outlet side pipe is lower than the lowest point of the inner cavity.
Preferably, the U-shaped water seal is a U-shaped modified PVC pipeline.
Further, the shell comprises an outlet pipe and an inlet pipe, and the outlet pipe and the inlet pipe are communicated with the inner cavity.
Furthermore, the hot wall flue comprises an upstream flue gas pipeline and a downstream flue gas pipeline, the waterproof flange comprises an outlet flange and an inlet flange, the outlet pipe is connected with the downstream flue gas pipeline through the outlet flange, and the inlet pipe is connected with the upstream flue gas pipeline through the inlet flange; and the outlet flange and the inlet flange are both provided with an anti-corrosion sealing structure.
Preferably, the anticorrosion sealing structure is silicone anticorrosion sealant.
Further, the ventilator comprises a transmission device, one side of the transmission device is connected with a motor shaft of the motor, and the other side of the transmission device is connected with an impeller shaft of the impeller.
Further, the transmission device is a transmission belt.
Preferably, the anticorrosive layer is a vinyl anticorrosive coating.
Compared with the prior art, a flue gas pipeline corrosion prevention device have following advantage:
a flue gas pipeline corrosion prevention device, through setting up the anticorrosive coating with casing internal surface, impeller outer wall, can carry the wet flue gas in-process of low temperature at the ventilation blower, carry out the inside whole of ventilation blower anticorrosive to condensate water effectively even acid condensate liquid, simultaneously through setting up drain, can in time discharge the condensate liquid that collects in the ventilation blower inner chamber effectively, avoid the condensate liquid to cause the interference to the operation of ventilation blower to the guarantee ventilation blower can continuously function effectively.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a front view of a ventilator in a flue gas pipeline corrosion prevention device according to an embodiment of the present invention;
fig. 2 is a schematic side view of a ventilator in a flue gas pipeline corrosion prevention device according to an embodiment of the present invention;
fig. 3 is a schematic sectional view of a casing of a ventilator in a flue gas pipeline corrosion prevention device according to an embodiment of the present invention.
Description of reference numerals:
1. a housing; 11. an inner cavity; 12. a liquid discharge device; 2. an impeller; 21. an impeller shaft; 3. an outlet pipe; 31. an outlet flange; 4. an inlet pipe; 41. an inlet flange; 5. a motor; 6. a transmission device; 7. and (4) an anticorrosive layer.
Detailed Description
The inventive concepts of the present disclosure will be described hereinafter using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. These utility concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Because of the introduction of the ventilator in the present application, in daily life, the ventilator is generally used in different positive and negative pressure modes, which are also called as an induced draft fan (negative pressure use) and a blower (positive pressure use), respectively. To maintain the relative nomenclature consistent, the term ventilator is used generically in this application.
In the prior art, if the ventilator is applied to the working condition of low-temperature wet flue gas, because the water vapor in the low-temperature wet flue gas is easy to condense, and the flue gas in the industrial field contains acidic gas, acidic liquid is easy to generate in the condensing process, so that the ventilator is often influenced by the condensed water in the ventilator and even has the problems of corrosion and the like of the acidic liquid in the process of conveying the low-temperature wet flue gas.
In order to solve the problems that in the prior art, the influence of condensed water inside a ventilator is caused during the process of conveying low-temperature wet flue gas, even the corrosion of acidic liquid is caused, the embodiment provides a flue gas pipeline corrosion prevention device, the device comprises the ventilator, a hot wall flue and a waterproof flange, the ventilator is in corrosion prevention sealing connection with the hot wall flue through the waterproof flange, as shown in the attached drawings 1 to 3, the ventilator comprises a shell 1, an impeller 2 and a motor 5, the shell 1 is provided with an inner cavity 11, the shell 1 comprises an outlet pipe 3 and an inlet pipe 4, the outlet pipe 3 and the inlet pipe 4 are both communicated with the inner cavity 11, the impeller 2 is arranged in the inner cavity 11 in a rotatable mode, and the motor 5 is connected with the impeller 2 to provide power support for the rotation of the impeller 2. The inner surface of the shell 1 and the outer wall of the impeller 2 are both provided with an anticorrosive layer 7, and the shell 1 is provided with a liquid drainage device 12.
Thereby in the ventilation blower, through setting up the anticorrosive coating with 1 internal surface of casing, 2 outer walls of impeller, can carry out the inside whole anticorrosive of ventilation blower to condensate water effectively, even acidic condensate liquid at the wet flue gas in-process of low temperature at the ventilation blower transport, simultaneously through setting up drain 12, can in time effectively discharge the condensate liquid that collects in the ventilation blower inner chamber 11, avoid the condensate liquid to cause the interference to the operation of ventilation blower to the guarantee ventilation blower can continuously function effectively.
In the present application, the anticorrosive coating 7 is a vinyl anticorrosive coating formed by spraying a vinyl anticorrosive paint on the inner surface of the casing 1 and the outer wall of the impeller 2, respectively. It should be noted that the vinyl anticorrosive paint is a conventional anticorrosive paint on the market, and considering the factors of comprehensive anticorrosive performance, cost, etc., the vinyl anticorrosive paint in this application is preferably vinyl resin. Of course, the corrosion-resistant layer 7 may also adopt other conventional corrosion-resistant structures or corrosion-resistant substances, which are not described in detail.
In addition, on the basis of the setting of the corrosion-resistant layer 7, the performances of corrosion resistance, strength and the like of the shell 1 and the impeller 2 can be considered, the shell 1 and the impeller 2 are made of corrosion-resistant materials such as stainless steel, preferably, the shell 1 is made of 2205 stainless steel and has high strength, good impact toughness and good corrosion resistance, and the impeller 2 is made of 316L stainless steel and has excellent corrosion resistance and pitting resistance.
To drain 12, can be conventional blow off pipe, the one end of blow off pipe is connected with the bottom of casing 1 to with inner chamber 11 intercommunication, the other end and external environment intercommunication, the blow off pipe sets up the blowoff valve simultaneously, thereby after the ventilation blower operation is long for a certain time, can open the blowoff valve and arrange outward to the condensate liquid that collects in the inner chamber 11. This kind of direct blowdown structure is comparatively common in industrial field, but it must set up valve structure in order to avoid the ventilation blower gas leakage, not only is unfavorable for reducing equipment cost, and the degree of automation of flowing back is lower moreover, and untimely condition of flowing back appears easily and takes place.
For this reason, the present application proposes another preferred drainage device 12, where the drainage device 12 is a U-shaped water seal, a liquid inlet side pipe of the U-shaped water seal is connected to the bottom of the housing 1 and communicated with the inner cavity 11, and a liquid outlet side pipe of the U-shaped water seal is communicated with the external environment. In the vertical direction, the lowest point of the waterway in the U-shaped water seal is lower than the liquid outlet position of the liquid outlet side pipe, and the liquid outlet position of the liquid outlet side pipe is lower than the lowest point of the inner cavity 11. Through setting up the U type water seal, along with the liquid inlet side pipe is flowed into to the condensate liquid in the inner chamber 11, as long as the liquid level of liquid inlet side pipe department is higher than the liquid outlet position of liquid outlet side pipe, alright realize automatic drainage, U type water seal self can form the water seal function simultaneously, can prevent the ventilation blower gas leakage effectively, need not to set up extra valve structure, thereby realize automatic drainage, on the basis of the function of preventing gas leakage, U type water seal is simple structure not only, and the quantity of components is reduced, be favorable to reducing the complete machine cost of ventilation blower.
Because the condensate in the inner cavity 11 is often acidic liquid, in order to ensure the service life of the U-shaped water seal, the U-shaped water seal is a U-shaped modified PVC pipeline and is made of a modified PVC material, so that the anti-corrosion performance of the U-shaped water seal is excellent, and meanwhile, the production cost is low.
For the connection of the ventilator and the hot wall flue, the hot wall flue comprises an upstream flue gas pipeline and a downstream flue gas pipeline, and the ventilator is connected with the downstream flue gas pipeline through the outlet pipe 3 and is connected with the upstream flue gas pipeline through the inlet pipe 4. In this application, waterproof flange includes outlet flange 31, import flange 41, outlet pipe 3 is connected with low reaches flue gas pipe through outlet flange 31, import pipe 4 is connected with upstream flue gas pipe through inlet flange 41. However, in consideration of the problems of liquid leakage, air leakage and the like possibly existing at the flange connection part, the anti-corrosion sealing structures are arranged in the outlet flange 31 and the inlet flange 41, so that on one hand, the sealing performance of the flange connection part is improved, the liquid leakage and the air leakage are prevented, and on the other hand, the corrosion of acid liquid formed by condensation to the flange structure is avoided.
Preferably, the anticorrosion sealing structure is a silicone anticorrosion sealant, and it should be noted that the silicone anticorrosion sealant is a conventional anticorrosion sealant on the market, and is selected by combining the factors of anticorrosion performance, sealing performance, cost and the like, and of course, other conventional sealing structures or sealing substances can be adopted for the anticorrosion sealing structure, which is not described in detail.
For the power transmission of the ventilator, the motor shaft of the motor 5 can be directly connected to the impeller 2, so that the motor 5 directly drives the impeller 2 to rotate. As an embodiment of the present application, the ventilator comprises a transmission device 6, one side of the transmission device 6 is connected with a motor shaft of the motor 5, and the other side of the transmission device 6 is connected with an impeller shaft 21 of the impeller 2, i.e. the motor 5 transmits power to the impeller 2 through the transmission device 6 to drive the impeller 2 to rotate, and the transmission device 6 is preferably a transmission belt.
The utility model discloses in, to arbitrary ventilation blower (including draught fan, air-blower etc.), can include in this embodiment on the basis of the correlation structure and the assembly relation of ventilation blower, the ventilation blower still includes the conventional component of ventilation blower including base, electric control part isotructure, does not give unnecessary details here.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a flue gas pipeline corrosion prevention device, a serial communication port, flue gas pipeline corrosion prevention device includes ventilation blower, hot wall flue, waterproof flange, the ventilation blower carries out anticorrosive sealing connection with hot wall flue through waterproof flange, the ventilation blower includes casing (1), impeller (2), motor (5), casing (1) has inner chamber (11), impeller (2) are set up in inner chamber (11) with the mode that can rotate, motor (5) are connected with impeller (2), provide power support for the rotation of impeller (2), the internal surface of casing (1), the outer wall of impeller (2) all set up anticorrosive coating (7), casing (1) sets up drain (12).
2. The corrosion prevention device for the flue gas pipeline according to claim 1, wherein the liquid discharge device (12) is a U-shaped water seal, a liquid inlet side pipe of the U-shaped water seal is connected with the bottom of the shell (1) and communicated with the inner cavity (11), and a liquid outlet side pipe of the U-shaped water seal is communicated with the external environment.
3. A flue gas pipeline corrosion prevention device as claimed in claim 2, wherein in the vertical direction, the lowest point of the water path in the U-shaped water seal is lower than the liquid outlet position of the liquid outlet side pipe, and the liquid outlet position of the liquid outlet side pipe is lower than the lowest point of the inner cavity (11).
4. The flue gas pipeline corrosion prevention device according to claim 2, wherein the U-shaped water seal is a U-shaped modified PVC pipeline.
5. A flue gas pipeline corrosion prevention device according to claim 1, wherein the shell (1) comprises an outlet pipe (3) and an inlet pipe (4), and the outlet pipe (3) and the inlet pipe (4) are both communicated with the inner cavity (11).
6. A flue gas pipeline corrosion prevention device as claimed in claim 5, wherein the hot wall flue comprises an upstream flue gas pipeline and a downstream flue gas pipeline, the waterproof flange comprises an outlet flange (31) and an inlet flange (41), the outlet pipe (3) is connected with the downstream flue gas pipeline through the outlet flange (31), and the inlet pipe (4) is connected with the upstream flue gas pipeline through the inlet flange (41); and the outlet flange (31) and the inlet flange (41) are both provided with an anti-corrosion sealing structure.
7. A flue gas pipeline corrosion prevention device as claimed in claim 6, wherein said corrosion prevention sealing structure is a silicone corrosion prevention sealant.
8. A flue gas pipe corrosion prevention device according to claim 1, wherein the ventilator comprises a transmission device (6), one side of the transmission device (6) is connected with a motor shaft of the motor (5), and the other side of the transmission device (6) is connected with an impeller shaft (21) of the impeller (2).
9. A flue gas pipeline corrosion prevention device according to claim 8, wherein the transmission device (6) is a transmission belt.
10. A flue gas pipe corrosion prevention device according to claim 1, wherein the corrosion prevention layer (7) is a vinyl corrosion prevention coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220945923.4U CN217107493U (en) | 2022-04-22 | 2022-04-22 | Flue gas pipeline corrosion prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220945923.4U CN217107493U (en) | 2022-04-22 | 2022-04-22 | Flue gas pipeline corrosion prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107493U true CN217107493U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220945923.4U Active CN217107493U (en) | 2022-04-22 | 2022-04-22 | Flue gas pipeline corrosion prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217107493U (en) |
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2022
- 2022-04-22 CN CN202220945923.4U patent/CN217107493U/en active Active
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