Energy-saving and environment-friendly desulfurization machine for thermal power plant

Abstract

The utility model relates to the technical field of sulfur removal machines, in particular to an energy-saving environment-friendly sulfur removal machine for a thermal power plant, which comprises a sulfur removal machine main body and a primary filtering water tank, pipeline joints are symmetrically mounted at the top of the primary filtering water tank, a gas outlet elbow is mounted outside one of the pipeline joints, and a gas outlet elbow is mounted outside the other pipeline joint. One end of the gas outlet bent pipe is communicated with a gas inlet of the sulfur removal machine main body, and a gas inlet straight pipe is mounted outside the other pipeline joint; water injected into the primary filtering water tank is in physical contact with flue gas entering the primary filtering water tank, dust particles contained in the flue gas are retained in the water in the primary filtering water tank, primary filtering of the flue gas is achieved, and the dust content of the flue gas before entering the sulfur removal machine body is reduced. Therefore, dust particles contained in the flue gas desulfurization process are prevented from being excessively accumulated in the absorbent layer in the desulfurization machine body, it is guaranteed that the absorbent layer in the desulfurization machine body can stably absorb sulfide contained in the flue gas, and the situation that dust hinders desorption of sulfate and the like from the absorbent layer is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurizers, in particular to an energy-saving and environment-friendly desulfurizer for thermal power plants. Background Art

[0002] A thermal power plant, also known as a thermal power plant, is a factory that uses combustible materials (such as coal) as fuel to produce electricity. Its basic production process is: when the fuel is burned, it heats water to generate steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the turbine to rotate, converting the thermal energy into mechanical energy. The turbine then drives the generator to rotate, converting the mechanical energy into electrical energy. The flue gas produced by the combustion of the fuel contains harmful substances such as sulfur dioxide, and needs to be desulfurized by a desulfurizer before being discharged.

[0003] The flue gas generated during the combustion of fuel will contain a certain amount of smoke particles. When it passes directly into the desulfurizer for desulfurization treatment, the dust particles contained in it will be retained in the absorbent layer. The continuous accumulation of the dust will cause the absorbent layer to be gradually blocked, thereby reducing its efficiency in passing the flue gas, which may increase the suction load of the machine, and the occurrence of this blockage is not conducive to the desorption of sulfate from the absorbent layer.

[0004] Therefore, in order to solve the above problems, an energy-saving and environment-friendly desulfurizer for thermal power plants is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that the continuous accumulation of dust will cause the absorbent layer to be gradually blocked, thereby reducing its efficiency in passing flue gas, which may increase the suction load of the machine, and the occurrence of blockage is not conducive to the desorption of sulfate from the absorbent layer, an energy-saving and environmentally friendly desulfurization machine for thermal power plants is proposed.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the energy-saving and environmentally friendly desulfurizer for a thermal power plant described in the present invention includes a desulfurizer body and a primary filter water tank, and pipe joints are symmetrically installed on the top of the primary filter water tank. An air outlet elbow is installed on the outside of one of the pipe joints, and one end of the air outlet elbow is connected to the air inlet of the desulfurizer body, and an air intake straight pipe is installed on the outside of the other pipe joint, and one end of the air intake straight pipe extends to the interior of the primary filter water tank. A position control component is installed inside the primary filter water tank, and the position control component includes a lifting straight pipe, and the lifting straight pipe is sleeved between the outer walls of the air intake straight pipe.

[0007] Preferably, a floating plate is fixed to the outer wall of the lifting straight pipe, and slots are symmetrically opened on both sides of the center of the floating plate. The inner wall of the primary filter water tank is symmetrically fixed with lifting rails, and the two lifting rails are respectively engaged and slid with the inner walls of the two slots.

[0008] Preferably, a water inlet pipe is connected to the upper side wall of the primary filter water tank, and an electric valve is installed on the outside of the water inlet pipe.

[0009] Preferably, contact sensors are installed on the side walls of one of the lifting rails near both end edges, and both of the contact sensors can contact the floating board.

[0010] Preferably, a control panel is installed on the side wall of the primary filter water tank, the control panel is connected in parallel with two contact sensors, and the control panel is electrically connected with the electric valve.

[0011] Preferably, a square opening is provided on the side wall of the primary filter water tank, and a filter box is mounted between the inner walls of the square opening.

[0012] Preferably, the side wall of the primary filter water tank is provided with a track limit plate, and the side wall of the support plate of the limit plate is fitted with the side wall of the filter box.

[0013] Beneficial effects of the utility model:

[0014] In the utility model, water is injected into the primary filtration water tank and the water comes into physical contact with the flue gas entering the primary filtration water tank, so that the dust particles contained in the flue gas are retained in the water in the primary filtration water tank, thereby achieving preliminary filtration of the flue gas and reducing the amount of dust contained in the flue gas before it enters the desulfurization machine body, thereby preventing the dust particles contained in the flue gas desulfurization process from excessively accumulating in the absorbent layer in the desulfurization machine body, ensuring that the absorbent layer in the desulfurization machine body can stably absorb the sulfide contained in the flue gas, and there will be no situation where dust hinders the desorption of sulfate and the like from the absorbent layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the primary water filter tank in the utility model;

[0018] Figure 3 It is a partially cutaway perspective view of the primary water filter tank in the present invention;

[0019] Figure 4 It is a three-dimensional diagram of the contact sensor in the utility model;

[0020] Figure 5 It is a three-dimensional diagram of the floating board in the utility model;

[0021] Legend:

[0022] 1. Desulfurizer body; 2. Primary filter water tank; 21. Pipe joint; 3. Air outlet elbow; 4. Air inlet straight pipe; 5. Position control component; 51. Lifting straight pipe; 52. Floating plate; 521. Slot; 22. Lifting rail; 23. Water inlet pipe; 24. Electric valve; 25. Contact sensor; 26. Control panel; 27. Square opening; 6. Filter box; 7. Limit plate. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Specific examples are given below.

[0025] See also Figure 1 - Figure 5 The utility model provides an energy-saving and environmentally friendly desulfurizer for a thermal power plant, comprising a desulfurizer body 1 and a primary filter water tank 2. Pipe joints 21 are symmetrically installed on the top of the primary filter water tank 2. An air outlet elbow 3 is installed on the outside of one of the pipe joints 21. One end of the air outlet elbow 3 is connected to the air inlet of the desulfurizer body 1. An air intake straight pipe 4 is installed on the outside of the other pipe joint 21. One end of the air intake straight pipe 4 extends to the interior of the primary filter water tank 2. A position control component 5 is installed inside the primary filter water tank 2. The position control component 5 includes a lifting straight pipe 51. The lifting straight pipe 51 is sleeved between the outer walls of the air intake straight pipe 4. The desulfurizer body 1 is connected to the pipe joint 21 on the primary filter water tank 2 through the outlet elbow 3. The flue gas generated by the combustion of fuel in the thermal power plant is filtered through the mutual cooperation between the air intake straight pipe 4 and the pipe joint 21 to enter the primary filter water tank 2. The water level height is coordinated by the position control component 5 inside the primary filter water tank 2. When the water level height is maintained within a certain threshold, the mutual contact between the flue gas and the water in the primary filter water tank 2 can be guaranteed, and the filtering effect of the water on the dust particles in the flue gas can be guaranteed. Among them, the lower part of the lifting straight pipe 51 in the position control component 5 is in contact with the water, and the upper end of the lifting straight pipe 51 is connected with the lower end of the air intake straight pipe 4 in a sleeve manner.

[0026] like Figure 3As shown, a floating plate 52 is fixed to the outer wall of the lifting straight pipe 51, and a clamping groove 521 is symmetrically opened on both sides of the center of the floating plate 52. The inner wall of the primary filter water tank 2 is symmetrically fixed with a lifting rail 22. The two lifting rails 22 respectively engage and slide with the inner walls of the two clamping grooves 521. Inside the primary filter water tank 2, the floating plate 52 contacts the water surface, providing buoyancy for the lifting straight pipe 51, and the lifting straight pipe 51 can rise and fall with the rise and fall of the water surface, ensuring that one end of the lifting straight pipe 51 is inserted into the water surface depth. The floating plate 52 is engaged with the lifting rail 22 by the clamping groove 521, so as not to hinder the lifting of the floating plate 52 while limiting the lifting of the floating plate 52.

[0027] like Figure 2 As shown, a water inlet pipe 23 is connected to the upper side wall of the primary filter water tank 2, and an electric valve 24 is installed on the outside of the water inlet pipe 23. The opening and closing of the electric valve 24 controls the process of water entering the primary filter water tank 2 from the water inlet pipe 23;

[0028] like Figure 2 、 Figure 3 and Figure 4 As shown, contact sensors 25 are installed on the side walls of one of the lifting rails 22 near the edges of both ends. Both contact sensors 25 can contact the floating plate 52. A control board 26 is installed on the side wall of the primary filtration water tank 2. The control board 26 is connected in parallel with the two contact sensors 25. The control board 26 is electrically connected to the electric valve 24. When the water level in the primary filtration water tank 2 drops to the lower contact sensor 25 as the high-temperature flue gas evaporates, the control board 26 controls the electric valve 24 to open. At this time, water enters the primary filtration water tank 2 from the water inlet pipe 23, and the water level in the primary filtration water tank 2 gradually rises. When the water level rises to the lower contact sensor 25, the control board 26 controls the electric valve 24 to close. At this time, water stops entering the primary filtration water tank 2, preventing the high or low water level in the primary filtration water tank 2 from having an adverse effect on flue gas filtration.

[0029] like Figure 1 and Figure 2 As shown, a square opening 27 is provided in the side wall of the primary filter water box 2, and a filter box 6 is clamped between the inner walls of the square opening 27. The side wall of the primary filter water box 2 passes through a track limiting plate 7, and the side wall of the support plate of the limiting plate 7 fits with the side wall of the filter box 6. The primary filter water box 2 installs the filter box 6 through the square opening 27. The filter box 6 can collect dust in the water entering the primary filter water box 2 to a certain extent, and can prevent water from entering the desulfurizer body 1 through the pipe joint 21 and the air outlet elbow 3 under its obstruction, and the installation of the filter box 6 will not hinder the overall lifting of the lifting straight pipe 51 and the floating plate 52. When the limiting plate 7 is moved upward until its upper support plate is disengaged from the side wall of the filter box 6, the filter box 6 can be moved out of the primary filter water box 2, and the filter box 6 and the inner wall of the primary filter water box 2 can be cleaned;

[0030] Working principle: the desulfurizer body 1 is connected to the pipe joint 21 on the primary filter water tank 2 through the outlet elbow 3. The flue gas generated by the combustion of fuel in the thermal power plant is filtered inside the primary filter water tank 2 through the mutual cooperation between the air intake straight pipe 4 and the pipe joint 21. The water level height is coordinated by the position control component 5 inside the primary filter water tank 2. The lower part of the lifting straight pipe 51 in the position control component 5 is in contact with the water, and the upper end of the lifting straight pipe 51 is connected with the lower end of the air intake straight pipe 4. The floating plate 52 inside the primary filter water tank 2 is in contact with the water surface, providing buoyancy for the lifting straight pipe 51, and the lifting straight pipe 51 can rise and fall with the rise and fall of the water surface to ensure that one end of the lifting straight pipe 51 is inserted into the water surface depth, and the floating plate 52 is engaged with the lifting rail 22 through the slot 521. While not hindering the lifting of the floating plate 52, the lifting of the floating plate 52 is limited. When the water level in the water tank 2 drops to the lower contact sensor 25 as the high-temperature flue gas evaporates, the control panel 26 controls the electric valve 24 to open. At this time, water enters the primary filtration water tank 2 through the water inlet pipe 23, and the water level in the primary filtration water tank 2 gradually rises. When the water level rises to the lower contact sensor 25, the control panel 26 controls the electric valve 24 to close. At this time, water stops entering the primary filtration water tank 2 to prevent the high or low water level in the primary filtration water tank 2 from having an adverse effect on flue gas filtration. The primary filtration water tank 2 is installed with the filter box 6 through the square opening 27. The filter box 6 can play a certain collection role in dust entering the water in the primary filtration water tank 2, and under its obstruction, it can prevent water from entering the desulfurizer body 1 through the pipe joint 21 and the air outlet elbow 3. When the limit plate 7 is moved upward until its upper support plate is separated from the side wall of the filter box 6, the filter box 6 can be moved out of the primary filtration water tank 2.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An energy-saving and environmentally friendly desulfurizer for a thermal power plant, characterized by: The invention comprises a desulfurization machine body (1) and a primary filter water tank (2), wherein pipe joints (21) are symmetrically installed on the top of the primary filter water tank (2), wherein an air outlet elbow (3) is installed on the outside of one of the pipe joints (21), and one end of the air outlet elbow (3) is connected to the air inlet of the desulfurization machine body (1), and an air intake straight pipe (4) is installed on the outside of the other pipe joint (21), and one end of the air intake straight pipe (4) extends to the inside of the primary filter water tank (2), and a position control component (5) is installed inside the primary filter water tank (2), and the position control component (5) includes a lifting straight pipe (51), and the lifting straight pipe (51) is sleeved between the outer walls of the air intake straight pipe (4).

2. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 1, characterized in that: A floating plate (52) is fixed to the outer wall of the lifting straight pipe (51), and clamping grooves (521) are symmetrically provided on both sides of the center of the floating plate (52). The inner wall of the primary filter water tank (2) is symmetrically fixed with lifting clamping rails (22), and the two lifting clamping rails (22) are respectively engaged with the inner walls of the two clamping grooves (521) to slide with each other.

3. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 2, characterized in that: A water inlet pipe (23) is connected to the upper side wall of the primary filter water tank (2), and an electric valve (24) is installed on the outside of the water inlet pipe (23).

4. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 3, characterized in that: Contact sensors (25) are installed on the side walls of one of the lifting rails (22) near both end edges, and both contact sensors (25) can contact the floating plate (52).

5. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 4, characterized in that: A control panel (26) is installed on the side wall of the primary filter water tank (2). The control panel (26) is connected in parallel with the two contact sensors (25). The control panel (26) is electrically connected with the electric valve (24).

6. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 5, characterized in that: A square opening (27) is provided on the side wall of the primary filter water box (2), and a filter box (6) is clamped between the inner walls of the square opening (27).

7. The energy-saving and environment-friendly desulfurizer for a thermal power plant according to claim 6, characterized in that: The side wall of the primary filter water box (2) is provided with a track limit plate (7), and the support plate side wall of the limit plate (7) is fitted with the side wall of the filter box (6).

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