Smoke filtering and purifying device of steam turbine

Abstract

The utility model is suitable for the technical field of steam turbines, and provides a steam turbine flue gas filtering and purifying device which comprises a base plate, and a purifying box is arranged on the base plate and used for purifying flue gas exhausted by a steam turbine. The cooling box is fixedly installed in the purification box, and a connecting pipe is fixedly installed in an air inlet of the cooling box and used for being connected with a smoke exhaust pipe of a steam turbine body; the water guide pipe is fixedly installed at the top of the cooling box, the water guide pipe fixedly communicates with a plurality of flow dividing pipes, and the water outlet ends of the flow dividing pipes extend into the cooling box; and the first partition plate is fixedly installed in the purification box and used for partitioning the space, and a first gas guide pipe is fixedly installed on the first partition plate. According to the steam turbine flue gas filtering and purifying device provided by the scheme, the problems that an existing steam turbine flue gas filtering and purifying device cannot cool flue gas, and the purifying effect is reduced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam turbines, and in particular relates to a steam turbine smoke filtering and purification device. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam-powered device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor equipped with the blade rows to rotate and perform external work. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship power plants.

[0003] However, during the operation of the steam turbine, a large amount of exhaust gas containing harmful substances such as particulate matter, sulfur dioxide, and nitrogen oxides will be generated. If these exhaust gases are directly discharged into the atmosphere without effective treatment, they will seriously pollute the environment and pose a threat to human health and ecological balance. The existing steam turbine flue gas filtration and purification device uses filtering or adsorption materials to purify the flue gas, but the initial inlet temperature of the flue gas is relatively high. The existing steam turbine flue gas filtration and purification device cannot effectively cool down the flue gas, which reduces the purification effect and therefore needs to be improved. Utility Model Content

[0004] The utility model provides a steam turbine flue gas filtering and purification device, aiming to solve the problem that the current steam turbine flue gas filtering and purification device cannot cool the flue gas, thereby reducing the purification effect.

[0005] The utility model is implemented as follows: a turbine flue gas filtering and purification device comprises: a base plate, a purification box is provided on the base plate for purifying the flue gas discharged from the turbine; a cooling box, the cooling box is fixedly installed in the purification box, and a connecting pipe is fixedly installed in the air inlet of the cooling box for connecting to the exhaust pipe of the turbine body; a water pipe, the water pipe is fixedly installed on the top of the cooling box, a plurality of branch pipes are fixedly connected to the water pipe, and the water outlet ends of the branch pipes extend into the cooling box; a first partition plate, the first partition plate is fixedly installed in the purification box for dividing the space, and a first air pipe is fixedly installed on the first partition plate; a purification mechanism, the purification mechanism is arranged on the purification box and the first air pipe.

[0006] Preferably, the purification mechanism includes: a filter bag fixedly mounted on the air outlet end of the first air duct; a plurality of second partition plates fixed on the purification box, the second partition plates being connected by air holes; a second air duct fixed on the second partition plates, for discharging the filtered gas in the separation space; an activated carbon plate arranged between two adjacent second partition plates, for adsorbing and purifying the gas filtered by the filter bag; and an ultraviolet lamp fixedly mounted on one side of the second partition plates close to each other.

[0007] Preferably, the purification box is provided with an exhaust channel, a motor is fixedly installed in the exhaust channel, and a fan blade is fixedly installed on the output shaft of the motor for discharging the filtered and purified gas.

[0008] Preferably, a water inlet pipe is fixedly installed at the water inlet end of the water pipe for connecting to a cold water device to supply water into the water pipe, and a drain pipe is fixedly connected to the bottom of the cooling box for drainage.

[0009] Preferably, the purification box is provided with an openable and closable sealed door, the sealed door is connected to the purification box via a hinge, and the sealed door is provided with a handle lock.

[0010] Preferably, an exhaust port is provided on the cooling box for discharging the cooled gas into the purification box. A detachable sealing plate is provided on the cooling box, and the sealing plate is fixedly connected to the cooling box by screws. A plurality of third partition plates are fixedly installed in the cooling box for separating the space, and the third partition plates are connected through the air holes opened therein.

[0011] Preferably, a one-way valve is provided on the connecting pipe to prevent smoke from flowing back, and an exhaust pipe is fixedly connected to the gas outlet end of the exhaust channel to discharge the purified and filtered gas to a distant place.

[0012] Compared with the related art, the steam turbine flue gas filtration and purification device provided by the present invention has the following advantages:

[0013] Beneficial effects:

[0014] Through effective cooling, the thermal stress of high temperature on the internal components of the purification box is reduced, and the service life of the equipment is extended; the setting of the first partition plate and the first air duct optimizes the flow path of the flue gas in the purification box, increases the contact time between the flue gas and the purification medium, and improves the purification effect; through the combined design of filter bags, second partition plates and second air ducts, activated carbon plates and ultraviolet lamps, multi-stage and efficient purification of flue gas is achieved, which not only improves the purification effect, but also ensures the safety of the purification process and the long-term reliability of the equipment; by setting an exhaust channel on the purification box and equipping it with a motor and fan blades, the smooth discharge of the purified gas is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of a steam turbine flue gas filtering and purification device provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A shown in FIG;

[0018] Figure 4 It is a structural schematic diagram of the cooling box in the utility model.

[0019] Figure numerals: 1. base plate; 2. purification box; 3. cooling box; 4. connecting pipe; 5. turbine body; 6. one-way valve; 7. first partition plate; 8. first air duct; 9. filter bag; 10. second partition plate; 11. second air duct; 12. activated carbon plate; 13. third partition plate; 14. water duct; 15. diversion pipe; 16. drain pipe; 17. motor; 18. fan blades; 19. water inlet pipe; 20. sealing door; 21. hinge; 22. ultraviolet lamp. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The present invention provides a steam turbine flue gas filtering and purification device. Figure 1-4 As shown, the turbine flue gas filtering and purification device includes: a base plate 1, on which a purification box 2 is provided for purifying the flue gas discharged from the turbine; a cooling box 3, which is fixedly installed in the purification box 2, and a connecting pipe 4 is fixedly installed in the air inlet of the cooling box 3 for connecting to the exhaust pipe of the turbine body 5; a water pipe 14, which is fixedly installed on the top of the cooling box 3, and a plurality of diversion pipes 15 are fixedly connected to the water pipe 14, and the water outlet ends of the diversion pipes 15 extend into the cooling box 3; a first partition plate 7, which is fixedly installed in the purification box 2 for dividing the space, and a first air pipe 8 is fixedly installed on the first partition plate 7; a purification mechanism, which is arranged on the purification box 2 and the first air pipe 8.

[0023] In this embodiment, the cooling box 3 is fixedly mounted within the purification box 2 and connected to the exhaust pipe of the steam turbine body 5 via a connecting pipe 4. A water conduit 14 and multiple diversion pipes 15 are designed within the cooling box 3. The water conduit 14 is located at the top of the cooling box 3 and evenly distributes cooling water throughout the cooling box 3 through the multiple diversion pipes 15. This design effectively reduces the flue gas temperature, providing favorable conditions for subsequent purification. A first partition 7 is fixedly mounted within the purification box 2 to separate the space, increase the flue gas flow path, and enhance the contact time between the flue gas and the purification medium. The first air duct 8 is fixedly mounted on the first partition plate 7 to guide the cooled flue gas to the purification mechanism, ensuring uniform distribution and effective purification of the flue gas during the purification process; the purification mechanism is arranged on the purification box 2 and the first air duct 8. The steam turbine flue gas filtering and purification device of the present invention effectively solves the problem of poor purification effect caused by excessively high flue gas temperature through the combined design of the cooling box 3 and the water duct 14; the combination of the cooling box 3, the water duct 14 and the diversion pipe 15 significantly reduces the initial temperature of the flue gas, avoids the damage of high temperature to the purification material, and improves the purification efficiency; through effective cooling, the thermal stress of high temperature on the internal components of the purification box 2 is reduced, and the service life of the equipment is extended; the setting of the first partition plate 7 and the first air duct 8 optimizes the flow path of the flue gas in the purification box 2, increases the contact time between the flue gas and the purification medium, and improves the purification effect.

[0024] In a further preferred embodiment of the present invention, the purification mechanism includes: a filter bag 9 fixedly mounted on the air outlet end of the first air duct 8; a plurality of second partition plates 10 fixed on the purification box 2, and the second partition plates 10 are connected by opening air holes; a second air duct 11 fixed on the second partition plates 10, for discharging the filtered gas in the separated space; an activated carbon plate 12 arranged between two adjacent second partition plates 10, for adsorbing and purifying the gas filtered by the filter bag 9; and an ultraviolet lamp 22 fixedly mounted on the side of the second partition plates 10 close to each other.

[0025] In this embodiment, the filter bag 9 is fixedly mounted on the air outlet end of the first air duct 8, and as a preliminary filtering unit, it can effectively intercept large particles, protect subsequent purification components from damage by large particles, and extend the service life of the entire purification system; multiple second partitions 10 form a multi-level separation space in the purification box 2, which is connected by the opened air holes, thereby increasing the flow path of the flue gas. The second air duct 11 is fixed on the second partition 10 to guide the purified gas out of the purification box to ensure the continuity and efficiency of the purification process; the activated carbon plate 12 is arranged between two adjacent second partitions 10, and the strong adsorption capacity of activated carbon is used to further remove harmful gases in the flue gas, such as sulfur dioxide (SO2) and nitrogen oxides (NOx), thereby improving the purification effect; the ultraviolet lamp 22 is fixedly mounted on the side of the second partition 10 close to each other, and is used for sterilization and disinfection, destroying the DNA structure of bacteria and viruses, and preventing microbial contamination. It assists the purification effect of the activated carbon plate 12 to ensure the harmlessness of the purified gas; through the multi-stage purification of the filter bag 9, the activated carbon plate 12 and the ultraviolet lamp 22, it ensures that the solid particles, harmful gases and microorganisms in the flue gas are effectively removed; the addition of the activated carbon plate 12 can remove harmful gases such as SO2 and NOx in a targeted manner, and the use of the ultraviolet lamp 22 can further enhance the purification effect and achieve deep purification; the filter bag 9 serves as a pretreatment to protect subsequent components from damage by large particles and extend the service life of the entire purification system; the bactericidal and disinfecting effect of the ultraviolet lamp 22 ensures the safety of the purified gas and reduces potential harm to the environment and human body; in summary, through the combined design of the filter bag 9, the second partition plate 10 and the second air duct 11, the activated carbon plate 12 and the ultraviolet lamp 22, multi-stage and efficient purification of the flue gas is achieved, which not only improves the purification effect, but also ensures the safety of the purification process and the long-term reliability of the equipment.

[0026] In a further preferred embodiment of the present invention, an exhaust channel is provided on the purification box 2, a motor 17 is fixedly installed in the exhaust channel, and a fan blade 18 is fixedly installed on the output shaft of the motor 17 for discharging the filtered and purified gas.

[0027] In this embodiment, an exhaust channel is provided on the purification box 2. This design ensures the outlet of the purified gas. The motor 17 fixedly installed in the exhaust channel serves as a power source to provide the necessary thrust for the discharge of the gas; the fan blades 18 are fixedly installed on the output shaft of the motor 17, and their function is to generate wind force through rotation, accelerate the discharge speed of the purified gas, ensure the air pressure balance inside the purification box 2, and avoid the reduction of purification efficiency due to air pressure problems; the combination of the motor 17 and the fan blades 18 effectively solves the problem of poor discharge of purified gas and ensures the continuity and efficiency of the purification process. In summary, by providing an exhaust channel on the purification box 2 and equipping it with a motor 17 and fan blades 18, the smooth discharge of the purified gas is ensured.

[0028] In a further preferred embodiment of the present invention, a water inlet pipe 19 is fixedly installed at the water inlet end of the water pipe 14 for connecting a cold water device to supply water to the water pipe 14, and a drain pipe 16 is fixedly connected to the bottom of the cooling box 3 for drainage.

[0029] In this embodiment, the water inlet end of the water pipe 14 is fixedly installed with an inlet pipe 19 for connecting to an external cold water device. This design ensures the continuous supply of cooling water and is the key to the normal operation of the cooling system; the drain pipe 16 is fixedly connected to the bottom of the cooling box 3 and is used to drain the cooling water after use. The existence of the drain pipe 16 ensures the recycling or timely replacement of cooling water, avoiding the accumulation and poor circulation of cooling water; connecting to an external cold water device through the inlet pipe 19 ensures the continuous supply of cooling water, meets the cooling water demand of the cooling box 3, and ensures the continuity and effectiveness of the flue gas cooling process; the setting of the drain pipe 16, in conjunction with the inlet pipe 19, realizes the recycling or timely replacement of cooling water, avoids the waste and poor circulation of cooling water, and improves cooling efficiency and resource utilization.

[0030] In a further preferred embodiment of the present invention, the purification box 2 is provided with an openable and closable sealing door 20 , the sealing door 20 is connected to the purification box 2 via a hinge 21 , and the sealing door 20 is provided with a handle lock.

[0031] In this embodiment, a retractable sealed door 20 is designed on the purification box 2, allowing operators to easily access the purification box for maintenance, inspection, or replacement of purification components such as the filter bag 9 and activated carbon plate 12, thereby improving maintenance efficiency. Hinge 21 and handle lock: The sealed door 20 is connected to the purification box 2 via hinge 21, ensuring stable opening and closing of the sealed door. The handle lock provided on the door facilitates easy opening and closing of the sealed door by the operator, while ensuring a tight seal when closed, preventing leakage of unfiltered gas.

[0032] In a further preferred embodiment of the present invention, an exhaust port is provided on the cooling box 3 for discharging the cooled gas into the purification box 2, and a detachable sealing plate is provided on the cooling box 3, and the sealing plate is fixedly connected to the cooling box 3 by screws, and a plurality of third partition plates 13 are fixedly installed in the cooling box 3 for dividing the space, and the third partition plates 13 are connected through the air holes opened therein.

[0033] In this embodiment, the exhaust port on the cooling box 3 is used to discharge the cooled gas into the purification box 2, ensuring that the cooled flue gas can smoothly enter the purification process. The cooling box 3 is equipped with a removable sealing plate, which is fixed to the cooling box 3 by screws. This design facilitates operator inspection and maintenance of the cooling box interior, improving maintenance convenience. Multiple third partitions 13 are fixedly installed in the cooling box 3 to divide the space and increase the flow path of the flue gas. The third partitions 13 are connected by air holes, ensuring that the flue gas is evenly distributed and fully contacted with the cooling water, thereby improving cooling efficiency.

[0034] In a further preferred embodiment of the present invention, a one-way valve 6 is provided on the connecting pipe 4 to prevent smoke backflow, and an exhaust pipe is fixedly connected to the outlet end of the exhaust channel to discharge the purified and filtered gas to a distant place.

[0035] In this embodiment, a one-way valve 6 is provided on the connecting pipe 4, and its function is to prevent the backflow of flue gas, ensuring that the flue gas can only flow in one direction from the flue gas source to the purification box 2, thereby avoiding the purified gas from being contaminated by unpurified flue gas again, and ensuring the purification effect; the exhaust pipe is fixedly connected to the outlet end of the exhaust channel, and is used to discharge the purified and filtered gas to a distant place. This design ensures that the purified gas can be away from the working environment, avoiding secondary pollution, and reducing the potential harm to operators and the environment.

[0036] To sum up, through effective cooling, the thermal stress of high temperature on the internal components of the purification box 2 is reduced, and the service life of the equipment is extended; the setting of the first partition plate 7 and the first air duct 8 optimizes the flow path of the flue gas in the purification box 2, increases the contact time between the flue gas and the purification medium, and improves the purification effect; through the combined design of the filter bag 9, the second partition plate 10 and the second air duct 11, the activated carbon plate 12 and the ultraviolet lamp 22, multi-stage and high-efficiency purification of the flue gas is achieved, which not only improves the purification effect, but also ensures the safety of the purification process and the long-term reliability of the equipment; by arranging an exhaust channel on the purification box 2 and equipping it with a motor 17 and fan blades 18, the smooth discharge of the purified gas is ensured.

[0037] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0038] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A steam turbine flue gas filtration and purification device, characterized in that: include: A base plate, wherein a purification box is provided on the base plate for purifying the flue gas discharged from the steam turbine; A cooling box, the cooling box being fixedly installed in the purification box, and a connecting pipe being fixedly installed in the air inlet of the cooling box for connecting to the exhaust pipe of the steam turbine body; A water pipe, the water pipe is fixedly installed on the top of the cooling box, a plurality of diversion pipes are fixedly connected to the water pipe, and the water outlet ends of the diversion pipes extend into the cooling box; a first partition plate, the first partition plate being fixedly mounted in the purification box and used to separate spaces, and a first air duct being fixedly mounted on the first partition plate; A purification mechanism is provided on the purification box and the first air duct.

2. The steam turbine flue gas filtration and purification device according to claim 1, characterized in that: The purification mechanism comprises: a filter bag fixedly sleeved on the air outlet end of the first air duct; A plurality of second partition plates fixed to the purification box, wherein the second partition plates are connected by air holes; a second air duct fixed on the second partition plate, for guiding the filtered gas in the partition space out; The activated carbon plate is arranged between two adjacent second partition plates and is used for adsorbing and purifying the gas filtered by the filter bag; The ultraviolet lamp is fixedly mounted on one side of the second partition plate close to each other.

3. The steam turbine flue gas filtration and purification device according to claim 1, characterized in that: The purification box is provided with an exhaust channel, a motor is fixedly installed in the exhaust channel, and a fan blade is fixedly installed on the output shaft of the motor for discharging the filtered and purified gas.

4. The steam turbine flue gas filtration and purification device according to claim 1, characterized in that: The water inlet end of the water pipe is fixedly installed with a water inlet pipe for connecting to a cold water device to supply water into the water pipe. The bottom of the cooling box is fixedly connected with a drain pipe for draining water.

5. The steam turbine flue gas filtration and purification device according to claim 1, characterized in that: The purification box is provided with an openable and closable sealing door, the sealing door is connected to the purification box through a hinge, and the sealing door is provided with a handle lock.

6. The steam turbine flue gas filtration and purification device according to claim 1, characterized in that: The cooling box is provided with an exhaust port for discharging the cooled gas into the purification box. The cooling box is provided with a detachable sealing plate, which is fixedly connected to the cooling box by screws. A plurality of third partition plates are fixedly installed in the cooling box for dividing the space, and the third partition plates are connected through the air holes.

7. The steam turbine flue gas filtration and purification device according to claim 3, characterized in that: A one-way valve is provided on the connecting pipe to prevent the smoke from flowing back. An exhaust pipe is fixedly connected to the gas outlet end of the exhaust channel to discharge the purified and filtered gas to a distant place.

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