Waste liquid treatment device for combustion engine thermal power plant

Abstract

The present invention relates to the technical field of waste liquid treatment and provides a waste liquid treatment device for a combustion engine thermal power plant. The waste liquid treatment device comprises a filter box. The filter box is fixedly mounted on a side wall in a housing, a filter assembly is arranged in the filter box, a heating mechanism is arranged at the bottom in the housing, a liquid outlet at the bottom of the filter box is in communication with the heating mechanism by means of a first liquid delivery pipe, and a reaction sedimentation mechanism is arranged on one side of the heating mechanism. By arranging the filter box in the housing for use in conjunction with the filter assembly to remove large-particle impurities from a waste liquid to be treated and then conveying the filtered waste liquid into the heating mechanism by means of a first liquid conveying pipe for heating the waste liquid, so as to better cooperate with the reaction sedimentation mechanism for treating the waste liquid, the present invention achieves coagulation of suspended matters, colloidal substances, etc. in the waste liquid into large particles, thus completing sedimentation. In addition, the heating mechanism can not only improve the oxidation reaction efficiency, but also recover readily obtainable low-cost steam in a combustion engine thermal power plant for heating, thereby achieving efficient utilization of energy.

Description

A waste liquid treatment device for a gas turbine power plant Technical Field

[0001] This invention relates to the field of waste liquid treatment technology, and more specifically to a waste liquid treatment device for a gas turbine power plant. Background Technology

[0002] Gas turbine power plants generate large amounts of waste liquid during production, which contains various harmful substances. Direct discharge of this waste liquid would cause serious environmental pollution. However, the waste liquid also contains some recyclable resources. Proper treatment and resource utilization can help improve resource utilization efficiency and reduce environmental pollution.

[0003] Existing boiler wastewater treatment devices for thermal power plants can control the dosage of chemicals during treatment by incorporating a feeding assembly. This allows for the addition of different dosages based on the varying levels of contamination in the wastewater, thereby improving treatment efficiency. However, they lack a filtration assembly, preventing pretreatment of the wastewater and the effective removal of large particulate impurities. Furthermore, the absence of a heating mechanism makes it difficult to maintain constant temperature and pressure during oxidation and precipitation treatment. This leads to temperature and pressure fluctuations, resulting in uncontrolled reactions and the formation of byproducts. Additionally, unsuitable wastewater temperatures result in low oxidation reaction efficiency, thus impacting the overall treatment efficiency and effectiveness of the wastewater treatment device. Therefore, there is an urgent need to design a wastewater treatment device for gas turbine thermal power plants to address these issues. Summary of the Invention

[0004] The present invention provides a waste liquid treatment device and its operation method for a gas turbine power plant, which solves at least one of the problems mentioned in the background art.

[0005] To address the aforementioned technical problems, this invention discloses a waste liquid treatment device for a gas turbine power plant, comprising a filter box, which is fixedly installed on the side wall of the box body. The filter box contains a filter assembly, and a heating mechanism is located at the bottom of the box body. The outlet at the bottom of the filter box is connected to the heating mechanism via a first liquid delivery pipe. A reaction precipitation mechanism is located on one side of the heating mechanism, and the reaction precipitation mechanism is connected to the heating mechanism via a second liquid delivery pipe.

[0006] The waste liquid treatment device for gas turbine power plants provided by this invention has the following advantages compared with the prior art:

[0007] 1. The waste liquid treatment device for a gas turbine power plant described above can pre-treat the waste liquid through a filter assembly, effectively removing large particulate impurities. Secondly, before the waste liquid undergoes oxidation and precipitation treatment, the heating mechanism, in conjunction with the reaction and precipitation mechanism, raises the temperature to a suitable range for the oxidation reaction. This helps accelerate the reaction between organic matter and the oxidant in the waste liquid, improving the efficiency of oxidation and decomposition. Simultaneously, it maintains constant reaction temperature and pressure, helping to control the oxidation reaction process and preventing runaway reactions or the generation of byproducts due to temperature fluctuations or pressure changes. This effectively improves the efficiency of the waste liquid oxidation reaction and ensures the treatment efficiency and effectiveness of the waste liquid treatment device.

[0008] 2. The waste liquid treatment device of the gas turbine power plant described above, through the set reaction sedimentation mechanism, can reduce the chemical oxygen demand (COD) by adding an oxidant to cause the organic matter in the waste liquid to undergo an oxidative decomposition reaction. Secondly, the stirring mechanism fully stirs the waste liquid during the oxidation reaction to promote the mixing of reactants and products and accelerate the reaction efficiency. At the same time, the cleaning component can clean the inner wall of the treatment tank in a timely manner to prevent colloids from adhering to the inner wall of the treatment tank as suspended matter, which would affect the treatment efficiency and treatment of the waste liquid treatment device. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 is a schematic diagram of the structure of a waste liquid treatment device for a gas turbine power plant provided in an embodiment of the present invention;

[0011] Figure 2 is a schematic diagram of the internal structure of the auxiliary box of a waste liquid treatment device for a gas turbine power plant according to an embodiment of the present invention;

[0012] Figure 3 is a top view of the connection between the fixing ring and the cleaning brush in a waste liquid treatment device for a gas turbine power plant according to an embodiment of the present invention.

[0013] Figure label:

[0014] 1. Filter box; 1-1. Filter box inlet; 2. Box body; 3. Heating mechanism; 4. First infusion pipeline; 5. Reaction and sedimentation mechanism; 6. Baffle plate; 7. Filter screen; 8. Slag discharge port; 9. Valve one; 10. Second infusion pipeline; 11. Heating box; 12. Air inlet pipe; 13. Air outlet pipe; 14. Heating bend; 15. Water pump; 16. Valve two; 17. Level gauge; 18. Processing tank; 18-1. Drainage port; 19. Storage tank; 20. Third infusion pipeline; 21. Auxiliary box; 22. Drive assembly; 23. 24. Drive motor; 25. Turntable; 26. Hinge rod; 27. Groove 1; 28. Groove 2; 29. ​​Slide 1; 20. First slider; 21. L-shaped rod; 32. Slide rod; 33. Second slider; 34. Connecting block; 35. Support rod; 36. Groove 3; 37. Slide 2; 38. Drive rack; 39. Drive shaft; 40. Drive gear; 41. Stirring rod; 42. Connecting bracket; 43. Fixing sleeve; 44. Guide rod; 45. Fixing ring; 46. Mounting block; 47. Spring; 48. Cleaning brush. Embodiments of the present invention

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0016] The present invention provides the following embodiments.

[0017] Example 1

[0018] This invention provides a wastewater treatment device for a gas turbine power plant, as shown in Figure 1. It includes a filter box 1, which is fixedly installed on the side wall inside a housing 2. A filter assembly is provided inside the filter box 1. A heating mechanism 3 is located at the bottom inside the housing 2, and the outlet at the bottom of the filter box 1 is connected to the heating mechanism 3 through a first liquid delivery pipe 4. A reaction precipitation mechanism 5 is located on one side of the heating mechanism 3, and the reaction precipitation mechanism 5 is connected to the heating mechanism 3 through a second liquid delivery pipe 10.

[0019] Preferably, the filter assembly includes a guide plate 6 and a filter screen 7. The guide plate 6 is disposed above the filter screen 7, and the guide plate 6 and the filter screen 7 are arranged at a certain angle inside the filter box 1. Specifically, one side of the guide plate 6 (i.e., the right end of the guide plate 6 shown in Figure 1) is fixedly mounted on the inner wall of the filter box 1, and the other side of the guide plate 6 (i.e., the left end of the guide plate 6 shown in Figure 1) is inclined downward and leaves a certain distance between it and the left side wall of the inner cavity of the filter box 1, thereby forming a liquid channel between the left end of the guide plate 6 and the left side wall of the inner cavity of the filter box 1, so that the waste liquid to be filtered can flow through the liquid channel to the filter screen 7 for filtration; both sides of the filter screen 7 (i.e., the left and right ends of the filter screen 7 shown in Figure 1) are fixedly installed on the inner wall of the filter box 1. On the inner wall of the filter box 1, the filter screen 7 is inclined with the left side higher than the right side. Waste liquid flows down from the left end of the guide plate 6 to the left end of the filter screen 7. Because the left side of the filter screen 7 is higher than the right side, the waste liquid flows from the left side of the filter screen 7 to the right side. During this flow, the liquid flows through the perforated structure of the filter screen 7 to the bottom of the filter box 1. Solid waste (i.e., filter residue) retained on the upper side of the filter screen 7 can flow along the inclined filter screen 7 to the right side. Therefore, a slag discharge port 8 is embedded above the right side of the filter screen 7 in the filter box 1. The upper side of the slag discharge port 8 is higher than the right end of the filter screen 7, and the lower side of the slag discharge port 8 is not higher than the right end of the filter screen 7. This allows the slag discharged from the filter screen 7 to be discharged as completely as possible, avoiding retention. The filter residue discharged through the slag discharge port 8 can be further processed. A valve 9 is connected to the first infusion pipeline 4. In this embodiment, by setting the guide plate 6, the waste liquid entering from the filter box inlet 1-1 at the top of the filter box 1 can be stabilized. On the guide plate 6, as the waste liquid flows from the right end to the left end of the guide plate 6, the waste liquid gradually spreads out, making the waste liquid relatively evenly distributed in the front-back direction of the filter box 1 (i.e., the direction perpendicular to the picture shown in Figure 1). Then it flows to the left end of the filter screen 7, and then from the left end of the filter screen 7 to the right end. During the flow, because the state of the waste liquid is relatively uniform, the filter screen 7 has a good filtration effect on the filtrate. Furthermore, the filter residue formed on the filter screen 7 will be carried to the slag discharge port 8 along with the flow of the waste liquid, so that the filter residue on the filter screen 7 can be discharged from the slag discharge port 8 as much as possible, which improves the filtration effect and prevents the filter residue from accumulating on the filter screen 7. The filtrate at the bottom of the filter box 1 can be transported to the heating mechanism 3 through the first infusion pipe 4. The valve 9 on the first infusion pipe 4 can be used to control the opening and closing state of the first infusion pipe 4, thereby controlling the timing of the filtrate in the filter box 1 entering the heating mechanism 3. That is, when it is necessary to transport the filtrate in the filter box 1 to the heating mechanism 3, the valve 9 is opened. When the amount of filtrate (waste liquid) in the heating mechanism 3 reaches a certain level, the valve 9 is closed, and at this time the filtrate in the filter box 1 stops being transported to the heating mechanism 3.

[0020] Preferably, the heating mechanism 3 includes: a heating box 11, the bottom of which is fixedly installed at the bottom of the box body 2; an air inlet pipe 12 and an air outlet pipe 13 spaced vertically apart; both the air inlet pipe 12 and the air outlet pipe 13 penetrate the right side wall of the box body 2 and the heating box 11; and a heating bend pipe 14 disposed inside the heating box 11. The air inlet pipe 12 and the air outlet pipe 13 are respectively connected to the upper and lower ends of the heating bend pipe 14. That is, when the heating mechanism 3 heats the waste liquid (i.e., the filtrate delivered from the filter box 1), the heating mechanism 3 heats the waste liquid. During heating, a heat carrier gas (such as water vapor) enters the heating bend 14 from the inlet pipe 12. As the heat carrier gas flows through the heating bend 14, it heats the waste liquid in the heating chamber 11. The cooled heat carrier gas is then discharged from the outlet pipe 13. The heating bend 14 can be a serpentine bend to increase the heat exchange area. Furthermore, the heating of the waste liquid by the heating bend 14 can be controlled by adjusting the temperature and delivery rate of the heat carrier gas supplied from the inlet pipe 12, ensuring the waste liquid is heated to a preset temperature. Personnel can be adjusted according to actual conditions; this application does not impose specific limitations. The water pump 15 is fixedly installed on the top of the heating box 11, and the inlet of the second liquid delivery pipe 10 is located in the lower part of the heating box 11. The water pump 15 and valve 16 are fixedly connected to the second liquid delivery pipe 10. Valve 16 is located on the outlet side of the water pump 15. The waste liquid in the heating box 11 can be transported to the reaction sedimentation mechanism 5 through the water pump 15 and the second liquid delivery pipe 10. Valve 16 can control the second liquid delivery pipe. The on / off state of 10 is as follows: when it is necessary to transport the waste liquid in the heating tank 11 to the reaction precipitation mechanism 5, the water pump 15 and valve 16 are turned on; when it is necessary to stop transporting the waste liquid in the heating tank 11 to the reaction precipitation mechanism 5, the water pump 15 and valve 16 are turned off. A level gauge 17 is also fixedly connected to the part of the second liquid delivery pipeline 10 located inside the heating tank 11. The level gauge 17 can be used to measure the liquid level of the waste liquid in the heating tank 11. Through the measurement result of the level gauge 17, the liquid level of the waste liquid in the heating tank 11 can be accurately understood.

[0021] The working principle and beneficial effects of the above technical solution are as follows:

[0022] This invention discloses a waste liquid treatment device for a gas turbine power plant. By using a filter assembly installed in a filter box 1, the waste liquid to be treated can be pretreated, effectively removing large particulate impurities contained in the waste liquid. During operation, the waste liquid is first transported into the filter box 1 from the inlet at the top of the filter box 1. After being buffered and guided by the guide plate 6, the waste liquid is directed to the top of the filter screen 7, where the filter screen 7 removes the large particulate impurities in the waste liquid. The filter screen 7 is set at a certain angle so that the impurities filtered at its top can be discharged through the slag discharge port 8. The filtered waste liquid is transported to the heating box 11 through the first liquid delivery pipe 4. The valve 9 connected to the first liquid delivery pipe 4 can control the flow rate to the heating mechanism 3.

[0023] The aforementioned heating mechanism 3 can heat the waste liquid before reaction and precipitation treatment, allowing it to reach a suitable reaction temperature and thus accelerating the waste liquid treatment process. During operation, high-temperature steam is first introduced into the heating bend 14 through the air inlet pipe 12. At this time, the heating bend 14 heats the wastewater (i.e., waste liquid) in the heating tank 11 to the suitable temperature for reaction. Then, the heated waste liquid is transported to the reaction and precipitation mechanism 5 through the second liquid delivery pipe 10 and the water pump 15. The liquid level gauge 17 installed in the heating tank 11 can monitor the liquid level of the waste liquid in the heating tank 11, and the connected valve 2 16 controls the flow rate of the waste liquid transported to the reaction and precipitation mechanism 5. In industrial sites such as gas turbine power plants, steam is often an easily accessible and low-cost energy source. By using a steam heating mechanism and utilizing the steam provided by the waste heat recovery system for heating, energy efficiency can be achieved. This not only helps reduce energy consumption in the waste liquid treatment process but also conforms to the concepts of green, environmental protection, and sustainable development.

[0024] The aforementioned filter components can pre-treat the waste liquid, effectively removing large particulate impurities. Secondly, the heating mechanism 3, in conjunction with the reaction precipitation mechanism 5, raises the temperature of the waste liquid before oxidation and precipitation, bringing it to a suitable range for the oxidation reaction. This helps accelerate the reaction between organic matter and the oxidant in the waste liquid, improving the efficiency of oxidation and decomposition. Simultaneously, it maintains constant reaction temperature and pressure, helping to control the oxidation reaction process and preventing runaway reactions or the generation of byproducts due to temperature fluctuations or pressure changes. This effectively improves the efficiency of the waste liquid oxidation reaction and ensures the treatment efficiency and effectiveness of the waste liquid treatment device.

[0025] Example 2

[0026] Based on Embodiment 1, as shown in Figures 1-3, the reaction precipitation mechanism 5 includes: a processing tank 18, which is fixedly installed at the bottom of the housing 2; a storage tank 19, which is fixedly installed on the outer wall of the filter box 1, and the outlet of the storage tank 19 is connected to the inlet at the top of the processing tank 18 through a third inlet pipe 20; the outlet of the second inlet pipe 10 is connected to the inlet on the side wall of the processing tank 18; an auxiliary box 21 is fixedly installed on the top of the processing tank 18, and a drive assembly 22 is provided inside the auxiliary box 21; a stirring assembly and a cleaning assembly are provided inside the processing tank 18, and the stirring assembly and the cleaning assembly are driven by the drive assembly 22.

[0027] Preferably, the drive assembly 22 includes: a drive motor 23, which is fixedly mounted on the inner wall of the auxiliary box 21; a turntable 24 is coaxially fixedly mounted on the output shaft of the drive motor 23; a hinge rod 25 is fixedly connected to the turntable 24 at a position away from the center of the turntable 24 (i.e., the hinge rod 25 is eccentrically positioned on the turntable 24); the top of the auxiliary box 21 has a first groove 26 and a second groove 27; the top of a first slide groove 28 is slidably connected within the first groove 26; specifically, the top of the first slide groove 28 is provided with... The first slider 28-1 is disposed in the groove 26 and can slide left and right within the groove 26 (see the orientation shown in Figures 1 and 2). The hinge rod 25 is slidably connected within the slide groove 28. When the turntable 24 rotates, the hinge rod 25 rotates together with the turntable 24 around its axis. Since the top of the slide groove 28 is restricted by the first slider 28-1 and the groove 26, the hinge rod 25 can drive the slide groove 28 horizontally (see the left and right orientation shown in Figures 1 and 2) after its movement. The L-shaped rod 29 is fixedly connected to the right side of the slide groove 28. The right end of the L-shaped rod 29 passes through the right side of the auxiliary box 21 and faces downward. The slide rod 30 is fixedly connected to the L-shaped rod 29, and the upper end of the slide rod 30 is slidably connected to the groove 27. Specifically, the upper end of the slide rod 30 is fixedly connected to a second slider 30-1, which is located in the groove 27. The second slider 30-1 can slide left and right (see the positions shown in Figures 1 and 2) within the groove 27. The connecting block 31 is also movable. Support rods 32 are fixedly connected to both sides of the auxiliary box 21. Two grooves 33 are opened on the left and right inner walls of the auxiliary box 21. One end of each support rod 32 is fixedly connected to the connecting block 31, and the other end of each support rod 32 is slidably connected in the groove 33 on the same side. That is, the right end of the right support rod 32 is slidably connected to the groove 33 on the right inner wall of the auxiliary box 21, and the left end of the left support rod 32 is slidably connected to the groove 33 on the left inner wall of the auxiliary box 21. The lower end of the sliding rod 30 is slidably connected to the sliding groove 34 embedded in the connecting block 31. The second slide 34 can adopt an inclined structure with a lower left end and a higher right end. When the first slide 28 moves horizontally, it can drive the L-shaped rod 29 to move horizontally. When the L-shaped rod 29 moves horizontally, it can drive the slide rod 30 to move horizontally. When the slide rod 30 moves horizontally, since the second slide 34 is inclined, the lower end of the slide rod 30 can drive the connecting block 31 to move vertically (i.e., in the up and down direction as shown in Figures 1 and 2) through the second slide 34. When the connecting block 31 moves vertically, the support rod 32 provides horizontal support force to the connecting block 31 and moves vertically with the connecting block 31, so that the connecting block 31 can move stably in the vertical direction.

[0028] Preferably, the stirring assembly includes: a drive rack 35, both ends of which slide through the sidewalls of the auxiliary box 21, and one end of the drive rack 35 is fixedly connected to the lower end (i.e., the right end) of the L-shaped rod 29; the lower end of a drive shaft 36 passes through the top of the processing tank 18 and a stirring rod 38 is fixedly mounted thereon; the drive shaft 36 is rotatably connected to the top of the processing tank 18; and a drive gear 37 is fixedly mounted on the upper end of the drive shaft 36. The drive shaft 36, drive gear 37, stirring rod 38, and processing tank 18 are all coaxially mounted; specifically, the upper end of the drive shaft 36 is connected to the rotating shaft of the drive gear 37. The drive gear 37 meshes with the drive rack 35. When the L-shaped rod 29 moves horizontally, it can drive the drive rack 35 to move horizontally. When the drive rack 35 moves horizontally, it can drive the drive gear 37 to rotate. When the drive gear 37 rotates, it can drive the stirring rod 38 to rotate. After the stirring rod 38 rotates, it can stir the liquid material in the processing tank 18.

[0029] Preferably, the cleaning assembly includes: a connecting bracket 39, the top of which is fixedly connected to the connecting block 31, and the connecting bracket 39 penetrates the auxiliary box 21. The connecting bracket 39 is slidably connected to an opening in the auxiliary box 21 through which it passes. When the connecting block 31 moves vertically, the connecting bracket 39 can move vertically along with the connecting block 31. Two fixing sleeves 40 are symmetrically fixedly installed in the treatment tank 18, with the upper and lower ends of each fixing sleeve 40 fixedly installed in the treatment tank 18. At the top and bottom, each fixing sleeve 40 is fixedly connected to a guide rod 41. When the fixing sleeve 40 is connected to the guide rod 41, the upper end of the guide rod 41 is fixedly connected to the top of the fixing sleeve 40, and the lower end of the guide rod 41 is fixedly connected to the bottom of the fixing sleeve 40. The lower end of the connecting bracket 39 penetrates the top of the processing tank 18. The connecting bracket 39 is slidably connected to the opening in the processing tank 18 through which the connecting bracket 39 passes, and the lower end of the connecting bracket 39 is slidably connected to the guide rod 41. Specifically, the connecting bracket 39 has... The device has two parts, left and right. The lower end of the left part of the connecting bracket 39 is slidably connected to the left guide rod 41, and the lower end of the right part of the connecting bracket 39 is slidably connected to the right guide rod 41. Several mounting blocks 43 are slidably connected to each guide rod 41. Springs 44 are fitted on the guide rod 41 between adjacent mounting blocks 43, between the uppermost mounting block 43 and the lower end of the connecting bracket 39, and between the lowermost mounting block 43 and the bottom of the treatment tank 18. The number of mounting blocks 43 on the two guide rods 41 is the same, and the same sequence is formed on the two guide rods 41. The mounting blocks 43 (for example, five mounting blocks 43 are installed on each of the two guide rods 41, numbered one from top to bottom, two from bottom to top, and so on, with the fifth mounting block 43 numbered five) are at the same height. A fixing ring 42 is fixedly connected to the periphery of every two mounting blocks 43 at the same height, and a cleaning brush 45 is fixedly installed on the outer side wall of each fixing ring 42 (i.e., the side wall facing the inner side wall of the treatment tank 18). The cleaning brush 45 is in contact with the inner side wall of the treatment tank 18. When the connecting bracket 39 moves downward, it compresses the spring 44, causing all springs 44 to undergo axial compression deformation. At this time, the springs 44 can drive all the mounting blocks 43 to move vertically along the guide rod 41. When the mounting blocks 43 move vertically, the cleaning brush 45 cleans the inner wall of the treatment tank 18. When the connecting bracket 39 moves upward, all the springs 44 return to their original shape. At this time, the springs 44 can again drive all the mounting blocks 43 to move vertically along the guide rod 41. When the mounting blocks 43 move vertically, the cleaning brush 45 cleans the inner wall of the treatment tank 18. A drain port 18-1 can be provided at the bottom of the treatment tank 18 to discharge the treated waste liquid and the formed waste residue in the treatment tank 18.

[0030] Preferably, the fixing ring 42 can adopt a circular structure as shown in Figure 3, and the cross-section of the treatment tank 18 is also set to be circular. The fixing ring 42 is coaxially arranged with the treatment tank 18. Two mounting blocks 43 are symmetrically arranged on the left and right sides of the inner ring of the fixing ring 42. The mounting block 43 on the left side is slidably connected to the guide rod 41 on the left side, and the mounting block 43 on the right side is slidably connected to the guide rod 41 on the right side. Cleaning brushes 45 are evenly arranged on the outer ring of the fixing ring 42 (i.e., on the side facing the inner wall of the treatment tank 18).

[0031] The working principle and beneficial effects of the above technical solution are as follows:

[0032] The set reaction precipitation mechanism 5 can complete the oxidation reaction precipitation treatment of the waste liquid, so that the organic matter in the waste liquid undergoes an oxidation decomposition reaction, thereby reducing the COD concentration. During operation, the drive motor 23 is started, which drives the turntable 24 to rotate. When the turntable 24 rotates, the hinge rod 25 slides up and down in the slide groove 28. At the same time, the slide groove 28 slides left and right with the groove 26 of the first slider 28-1. Meanwhile, the L-shaped rod 29 slides left and right under the drive of the slide groove 28. The through hole on the side wall of the auxiliary box 21 provides a certain guiding effect for the left and right sliding of the L-shaped rod 29. The left and right sliding of the L-shaped rod 29 can drive the connected stirring component to work. The slide rod 30, which is fixedly connected to the lower end of the L-shaped rod 29, slides left and right with the left and right sliding of the L-shaped rod 29. The left and right sliding of the slide rod 30 drives the connecting block 31 to move up and down under the support of the support rod 32. The ends of the two support rods 32 are slidably connected in the two grooves 33 on the left and right sides, which can ensure that the connecting block 31 can move up and down smoothly, thereby driving the connected cleaning component to work.

[0033] Driven by the L-shaped rod 29, the drive rack 35, fixedly connected to the lower end of the L-shaped rod 29, slides left and right along the side wall of the auxiliary box 21. The side wall of the auxiliary box 21 has grooves for horizontally guiding the drive rack 35 left and right. Because the drive rack 35 meshes with the drive gear 37, the drive gear 37 rotates synchronously. Simultaneously, the drive shaft 36, fixedly connected to the drive gear 37, rotates at the top of the processing tank 18, causing the stirring rod 38 (equipped with stirring blades or agitators for agitating the liquid), fixedly connected to the lower end of the drive shaft 36, to rotate synchronously. When the oxidant in the storage tank 19 is transported to the processing tank 18 through the third infusion pipe 20, the oxidant reacts with the liquid in the processing tank 18. The wastewater undergoes an oxidation reaction. At this time, the stirring mechanism can accelerate the mixing speed of the oxidant and the wastewater, thereby speeding up the reaction rate. It can also ensure the efficiency of the reaction treatment mechanism in treating wastewater, as well as fully mix the reactants and products, and improve the treatment effect. The connecting block 31 drives the connecting bracket 39 to move up and down, so that the lower end of the connecting bracket 39 slides up and down along the guide rod 41. When the lower end of the connecting bracket 39 slides up and down along the guide rod 41, the connecting bracket 39 drives the spring 44 to deform and cause all the fixing rings 42 to move up and down along the guide rod 41. At the same time, the cleaning brush 45 fixedly connected to the fixing ring 42 effectively removes the large particles of products attached to the inner wall of the treatment tank 18, avoiding long-term accumulation that affects the treatment efficiency of the reaction sedimentation mechanism 5.

[0034] The reaction sedimentation mechanism 5 allows for the oxidation and decomposition of organic matter in the waste liquid by adding an oxidant, thereby reducing the chemical oxygen demand (COD). Furthermore, the stirring mechanism thoroughly agitates the waste liquid during the oxidation reaction to promote the mixing of reactants and products and accelerate the reaction efficiency. Simultaneously, the cleaning component promptly cleans the inner wall of the treatment tank 18, preventing colloids from adhering to the inner wall as suspended matter and affecting the treatment efficiency and treatment capacity of the waste liquid treatment device.

[0035] Example 3

[0036] Based on Example 1 or 2, a reaction performance testing device is also included to detect the working status of the reaction precipitation mechanism 5 during the oxidation reaction treatment of the waste liquid. The reaction performance testing device includes:

[0037] A density meter is used to detect the density of the precipitate generated at the bottom of the treatment tank 18.

[0038] Temperature sensor 1 is used to detect the temperature of the waste liquid transported in the second infusion pipeline 10;

[0039] Temperature sensor 2 is used to detect the temperature of the waste liquid output from the treatment tank 18 after the waste liquid has undergone reaction and precipitation treatment;

[0040] The controller and the alarm are electrically connected to a densitometer, temperature sensor one, temperature sensor two and the alarm. The controller controls the alarm to work based on the data collected by the densitometer, temperature sensor one and temperature sensor two.

[0041] Preferably, the controller controls the alarm based on the data collected by the densitometer, temperature sensor one, and temperature sensor two, including the following steps:

[0042] Based on the following formula and the detection values ​​of the density meter, temperature sensor one, and temperature sensor two, the settling rate of the particles generated during the oxidation reaction treatment of the waste liquid by the reaction sedimentation mechanism 5 is calculated. The controller compares the settling rate of particles generated during the oxidation reaction of the waste liquid in the reaction sedimentation mechanism 5. Compared to the preset particle settling rate range, if the settling rate of particles generated during the oxidation reaction treatment of waste liquid by the reaction sedimentation mechanism 5 is within a certain range... When the settling rate of the particles is outside the preset range, the controller will activate the alarm.

[0043] ;

[0044] in, The settling rate of particles generated during the oxidation reaction treatment of waste liquid by reaction sedimentation unit 5. This is a quality correction factor (typically ranging from 0.08 to 0.1). For gravitational acceleration, To process the cross-sectional area of ​​tank 18, The density value is the measured value of the precipitate generated at the bottom of the treatment tank 18 by a densitometer. The density of the waste liquid, This is the drag coefficient during free settling (which can be obtained through experimental measurement). This is a temperature correction factor (with a value range of 1.1-1.3). The temperature sensor detects the temperature of the waste liquid transported in the second infusion pipeline 10. The temperature sensor two measures the temperature of the waste liquid output from the treatment tank 18 after the waste liquid has undergone reaction and sedimentation treatment. The Reynolds number (with values ​​of ) ), Dynamic viscosity coefficient (unit: ) (obtained by looking up a table) The diameter of the second infusion tube 10.

[0045] The beneficial effects of the above technical solution are as follows: The controller controls the alarm based on the density meter, temperature sensor one, and temperature sensor two. If the settling rate of the particles generated during the oxidation reaction of the waste liquid through the reaction sedimentation mechanism 5 is not within the preset particle settling rate range, the controller controls the alarm to sound, thereby reminding the staff to check the reaction sedimentation mechanism 5 in time and to maintain the waste liquid treatment device according to the actual inspection results to maintain the waste liquid treatment device's use requirements for waste liquid reaction treatment. At the same time, it ensures the overall normal and stable operation and treatment efficiency of the waste liquid treatment device, and effectively improves the service life of the waste liquid treatment device. It further meets the reliability and stability requirements of the waste liquid treatment device for waste liquid treatment. By monitoring the working status of the waste liquid treatment device in real time during waste liquid treatment, it not only improves the efficiency and effect of the waste liquid treatment device for waste liquid treatment, but also ensures that the waste liquid treatment device can be quickly detected and repaired in time after a fault occurs.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste liquid treatment apparatus for a combustion engine thermal power plant, characterized by comprising: The system includes a filter box (1), which is fixedly installed on the side wall inside the box body (2). The filter box (1) is equipped with a filter assembly. A heating mechanism (3) is located at the bottom inside the box body (2). The liquid outlet at the bottom of the filter box (1) is connected to the heating mechanism (3) through a first liquid delivery pipe (4). A reaction precipitation mechanism (5) is located on one side of the heating mechanism (3). The reaction precipitation mechanism (5) is connected to the heating mechanism (3) through a second liquid delivery pipe (10).

2. A waste liquid treatment apparatus for a combined cycle power plant according to claim 1, characterized in that, The filter assembly includes a guide plate (6) and a filter screen (7). The guide plate (6) is located above the filter screen (7). The guide plate (6) and the filter screen (7) are set at a certain angle inside the filter box (1). One side of the guide plate (6) is fixedly installed on the inner wall of one side of the filter box (1). The other side of the guide plate (6) is inclined downward and leaves a preset distance between it and the inner wall of the other side of the filter box (1). The two sides of the filter screen (7) are fixedly installed on the inner wall of the filter box (1). The higher side of the filter screen (7) is located below the lower side of the guide plate (6). The lower side of the filter screen (7) is located below the higher side of the guide plate (6). The filter box (1) is provided with a slag discharge port (8) on the lower side of the filter screen (7). A valve (9) is connected to the first infusion pipe (4).

3. The exhaust fluid treatment apparatus for a combined cycle power plant according to claim 1, wherein The heating mechanism (3) includes: a heating box (11), the bottom of which is fixedly installed at the bottom of the box body (2). The box body (2) is provided with an air inlet pipe (12) and an air outlet pipe (13). The air inlet pipe (12) is located above the air outlet pipe (13) and is separated by a preset distance. The air inlet pipe (12) and the air outlet pipe (13) both penetrate the side wall of the box body (2) and the heating box (11). The inner cavity of the heating box (11) is provided with a heating bend pipe (14). The air inlet of the heating bend pipe (14) is connected to the air inlet pipe (13). 2) Connection: The outlet of the heating bend (14) is connected to the outlet pipe (13). A water pump (15) is fixedly installed on the top of the heating box (11), and the inlet of the second liquid delivery pipe (10) is located in the lower part of the heating box (11). The water pump (15) is also fixedly connected to the second liquid delivery pipe (10). A valve (16) is provided on the outlet side of the water pump (15) on the second liquid delivery pipe (10). A liquid level gauge (17) is also fixedly connected to the part of the second liquid delivery pipe (10) located in the heating box (11).

4. The exhaust fluid treatment apparatus for a combined cycle power plant according to claim 1, wherein The reaction precipitation mechanism (5) includes: a processing tank (18), which is fixedly installed at the bottom of the box (2), a storage tank (19) is fixedly installed on the outer side wall of the filter box (1), and the outlet of the storage tank (19) is connected to the inlet of the top of the processing tank (18) through a third inlet pipe (20), the outlet of the second inlet pipe (10) is connected to the inlet on the side wall of the processing tank (18), an auxiliary box (21) is fixedly installed on the top of the processing tank (18), and a drive assembly (22) is provided inside the auxiliary box (21). A stirring assembly and a cleaning assembly are provided inside the processing tank (18), and the stirring assembly and the cleaning assembly are connected to the drive assembly (22) and driven by the drive assembly (22).

5. A waste liquid treatment apparatus for a combined cycle power plant according to claim 4, wherein The drive assembly (22) includes: a drive motor (23), which is fixedly mounted on the inner wall of the auxiliary box (21). A turntable (24) is fixedly mounted on the output shaft of the drive motor (23). A hinge rod (25) is fixedly connected to the turntable (24) at a center away from the turntable (24). The top of the auxiliary box (21) is provided with a first groove (26) and a second groove (27). The top of a first slide groove (28) is slidably connected in the first groove (26). The hinge rod (25) is slidably connected in the first slide groove (28). One end of an L-shaped rod (29) is fixedly connected to the first slide groove (28). The other end of the L-shaped rod (29) passes through the side of the auxiliary box (21) and faces downward. A sliding rod (30) is fixedly connected to the part of the L-shaped rod (29) located inside the auxiliary box (21). The upper end of the sliding rod (30) is slidably connected to the second groove (27). A connecting block (31) is provided inside the auxiliary box (21). Support rods (32) are fixedly connected to the two side walls of the connecting block (31). The inner wall of the auxiliary box (21) is provided with a third groove (33) on both sides of the connecting block (31). One end of each support rod (32) is fixedly connected to the side wall of the connecting block (31). One end of each support rod (32) is slidably connected to a third groove (33). An inclined second groove (34) is provided on the connecting block (31), and the lower end of the sliding rod (30) is slidably connected to the second groove (34).

6. A waste liquid treatment apparatus for a combined cycle power plant according to claim 5, wherein The stirring assembly includes: a drive rack (35), both ends of which slide through the side wall of the auxiliary box (21), and one end of the drive rack (35) is fixedly connected to the lower end of the L-shaped rod (29); a drive shaft (36) is rotatably connected to the top of the processing tank (18), and the lower end of the drive shaft (36) passes through the top of the processing tank (18); a stirring rod (38) is fixedly installed at the lower end of the drive shaft (36); and a drive gear (37) is fixedly installed at the upper end of the drive shaft (36), and the drive gear (37) meshes with the drive rack (35).

7. A waste liquid treatment apparatus for a combined cycle power plant according to claim 6, wherein The cleaning assembly includes: a connecting bracket (39), the top of which is fixedly connected to the connecting block (31), and the connecting bracket (39) penetrates the auxiliary box (21). The connecting bracket (39) is slidably connected to an opening on the auxiliary box (21) through which the connecting bracket (39) passes. Two fixing sleeves (40) are symmetrically fixedly installed in the treatment tank (18). The upper and lower ends of each fixing sleeve (40) are fixedly installed on the top and bottom of the treatment tank (18). Each fixing sleeve (40) is fixedly connected to a guide rod (41), wherein the upper end of the guide rod (41) is fixedly connected to the top of the fixing sleeve (40), and the lower end of the guide rod (41) is fixedly connected to the bottom of the fixing sleeve (40). The lower end of the connecting bracket (39) penetrates the top of the treatment tank (18). The connecting bracket (39) is connected to the opening on the treatment tank (18) through which the connecting bracket (39) passes. The guide rod (41) is slidably connected to the guide rod (41), and the lower end of the connecting bracket (39) is slidably connected to the guide rod (41). Several mounting blocks (43) are slidably connected to each guide rod (41). Springs (44) are sleeved on the guide rod (41) between adjacent mounting blocks (43), between the uppermost mounting block (43) and the lower end of the connecting bracket (39), and between the lowermost mounting block (43) and the bottom of the treatment tank (18). The number of mounting blocks (43) on the two guide rods (41) is the same, and the mounting blocks (43) with the same serial number on the two guide rods (41) are at the same height. A fixing ring (42) is fixedly connected to the periphery of every two mounting blocks (43) at the same height. A cleaning brush (45) is fixedly installed on the side wall of the fixing ring (42) facing the inner side wall of the treatment tank (18). The cleaning brush (45) contacts the inner side wall of the treatment tank (18). A drain port (18-1) is provided at the bottom of the treatment tank (18).

8. The exhaust fluid treatment apparatus of a combined cycle power plant according to claim 1, wherein It also includes a reaction performance testing device for detecting the working status of the reaction precipitation mechanism (5) during the oxidation reaction treatment of waste liquid, the reaction performance testing device including: A density meter is used to detect the density of the precipitate generated by the reaction at the bottom of the treatment tank (18); Temperature sensor 1 is used to detect the temperature of the waste liquid transported in the second infusion pipeline (10); Temperature sensor 2 is used to detect the temperature of the waste liquid output from the treatment tank (18) after the waste liquid has undergone reaction and precipitation treatment; The controller and alarm are electrically connected to a densitometer, temperature sensor one, temperature sensor two, and the alarm. The controller controls the alarm to operate based on the data collected by the densitometer, temperature sensor one, and temperature sensor two.

9. The exhaust fluid treatment apparatus of a combined cycle power plant according to claim 8, wherein The controller controls the alarm based on the density meter, temperature sensor one, and temperature sensor two, including the following steps: The settling rate of the particles generated when the waste liquid is subjected to the oxidation reaction treatment by the reaction and precipitation mechanism (5) is calculated from the following equation and the detected values of the density meter, the temperature sensor one and the temperature sensor two , the controller compares the settling rate of the particles generated when the waste liquid is treated by the oxidation reaction of the reaction and precipitation mechanism (5) at present with a preset range of settling speed of particles, if the settling speed of particles generated when the waste liquid is subjected to the oxidation reaction treatment by the reaction precipitation mechanism (5) at present When the settling rate of the particles is outside the preset range, the controller will activate the alarm. ； wherein The settling rate of particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction and precipitation mechanism, for the quality correction factor, for the gravitational acceleration, to process the cross-sectional area of the tank (18), the detection value of the density meter for the density of the precipitate generated by the reaction at the bottom of the treatment tank (18), the density of the waste liquid, for the drag coefficient during free settling, for the temperature correction coefficient, The temperature sensor detects the temperature of the waste liquid in the second pair of infusion tubes (10), The temperature sensor 2 detects the temperature of the waste liquid output from the treatment tank 18 after the waste liquid is treated by the reaction and precipitation process. For Reynolds number, for the dynamic viscosity coefficient, The diameter of the second infusion tube (10) is given.

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