Waste liquid treatment device of gas turbine thermal power plant

Abstract

The invention provides a waste liquid treatment device of a gas turbine thermal power plant, and relates to the technical field of waste liquid treatment.The waste liquid treatment device comprises a filter box, the filter box is fixedly installed on the side wall in a box body, a filter assembly is arranged in the filter box, and a heating mechanism is arranged at the bottom in the box body; a liquid outlet in the bottom of the filter box is communicated with the heating mechanism through a first liquid conveying pipeline, and the reaction precipitation mechanism is arranged on one side of the heating mechanism. The filter box is arranged in the box body to cooperate with the filter assembly to remove large-particle impurities in waste to be treated, and then the filtered waste liquid is conveyed into the heating mechanism through the first liquid conveying pipeline to be heated, so that the waste liquid is better treated by cooperating with the reaction precipitation mechanism; suspended matters, colloidal substances and the like in the waste liquid are condensed into relatively large particles to complete precipitation, and the heating mechanism not only can improve the oxidation reaction efficiency, but also can recycle steam which is easy to obtain and relatively low in cost in a gas turbine thermal power plant for heating, so that efficient utilization of energy is realized.

Description

Technical Field

[0001] The invention relates to the technical field of waste liquid treatment, and in particular to a waste liquid treatment device for a gas turbine thermal power plant. Background Art

[0002] During the production process of gas turbine thermal power plants, a large amount of waste liquid is generated. These waste liquids contain a variety of harmful substances. If they are directly discharged, they will cause serious pollution to the environment. At the same time, the waste liquid also contains some recyclable resources. If they can be properly treated and recycled, it will help improve resource utilization efficiency and reduce environmental pollution.

[0003] Existing technologies such as invention patent CN 220642751U are a boiler waste liquid treatment device for a thermal power plant. By setting a feeding component in the treatment device, the amount of medicine added can be controlled during boiler waste liquid treatment, so that different amounts of medicine can be added according to the different pollution levels of the waste liquid to improve the efficiency of waste liquid treatment. However, due to the lack of a filtering component, it is impossible to pre-treat the waste liquid and effectively remove large particle impurities in the waste liquid; secondly, due to the lack of a heating mechanism, it is difficult to maintain constant temperature and pressure when the waste liquid is subjected to oxidation precipitation treatment, resulting in temperature and pressure fluctuations that cause the reaction to be out of control and the generation of by-products, and the waste liquid temperature is not suitable for the oxidation reaction conditions, resulting in low efficiency of the waste liquid oxidation reaction, thereby affecting the treatment efficiency and effect of the waste liquid treatment device. Therefore, it is urgent to design a waste liquid treatment device for a gas turbine thermal power plant to solve the above problems. Summary of the invention

[0004] The present invention provides a waste liquid treatment device for a combustion engine thermal power plant and an operation method thereof, which are used to solve at least one of the problems raised by the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a waste liquid treatment device for a gas turbine thermal power plant, comprising a filter box, the filter box is fixedly installed on the side wall inside the box body, a filter assembly is arranged in the filter box, a heating mechanism is arranged at the bottom of the box body, and the liquid outlet at the bottom of the filter box is connected to the heating mechanism through a first liquid infusion pipeline, a reaction precipitation mechanism is arranged on one side of the heating mechanism, and the reaction precipitation mechanism is connected to the heating mechanism through a second liquid infusion pipeline.

[0006] Preferably, the filter assembly includes a guide plate and a filter screen, and the guide plate and the filter screen are arranged at a certain angle in the filter box, one side of the guide plate is fixedly mounted on the inner wall of the filter box, and both sides of the filter screen are fixedly mounted on the inner wall of the filter box, and the filter box is embedded with a slag discharge port above one side of the filter screen, and the first infusion pipeline is connected to valve 1.

[0007] Preferably, the heating mechanism includes: a heating box, the bottom of which is fixedly mounted on the bottom of the box body, the air inlet pipe and the air outlet pipe pass through the box body and the side wall of the heating box at an upper and lower interval, the air inlet and the air outlet of the heating elbow are respectively connected to the air inlet pipe and the air outlet pipe in a one-to-one correspondence, the water pump is fixedly mounted on the top of the heating box, and the water inlet of the second infusion pipeline is arranged at the lower part of the heating box, the water pump and valve 2 are fixedly connected to the second infusion pipeline, and a liquid level meter is also fixedly connected to the second infusion pipeline located in the heating box.

[0008] Preferably, the reaction precipitation mechanism includes: a processing tank, which is fixedly mounted at the bottom of the box body, a liquid storage tank fixedly mounted on the outer wall of the filter box, and the liquid outlet of the liquid storage tank is connected to the liquid inlet at the top of the processing tank through a third infusion pipe, the liquid outlet of the second infusion pipe is connected to the liquid inlet on the side wall of the processing tank, an auxiliary box is fixedly mounted on the top of the processing tank, and a driving assembly is arranged in the processing box, a stirring assembly and a cleaning assembly are arranged inside the processing tank, and the stirring assembly and the cleaning assembly are driven by the driving assembly.

[0009] Preferably, the driving assembly includes: a driving motor, the driving motor is fixedly mounted on the inner wall of the auxiliary box, a turntable is fixedly mounted on the output shaft of the driving motor, the turntable is fixedly connected with a hinge rod away from the center, groove one and groove two are embedded in the top of the auxiliary box, the top of slide groove one is slidably connected in the groove one, the hinge rod is slidably connected in the slide groove one, one end of the L-shaped rod is fixedly connected to the slide groove one, the sliding rod is fixedly connected to the L-shaped rod, and the upper end of the sliding rod is slidably connected in the groove two, the two side walls of the connecting block are fixedly connected with support rods, two grooves three are embedded in the inner wall of the auxiliary box in left and right pairs, the two ends of the support rod are respectively slidably connected in the groove three, and the lower end of the sliding rod is slidably connected to the slide groove two embedded in the connecting block.

[0010] Preferably, the stirring assembly includes: a driving rack, both ends of which slide through the side walls of the auxiliary box, and one end of the driving rack is fixedly connected to the lower end of the L-shaped rod, and the lower end of the driving shaft rotates through the top of the processing tank and is fixedly installed with a stirring rod, and the upper end of the driving shaft is fixedly installed with a driving gear, which is meshed with the driving rack.

[0011] Preferably, a reaction performance detection device is also included, which is used to detect the working state of the reaction precipitation mechanism when the waste liquid is subjected to oxidation reaction treatment, and the reaction performance detection device includes:

[0012] Density meter, used to detect the density of the sediment generated by the reaction at the bottom of the treatment tank;

[0013] Temperature sensor 1, used for detecting the temperature of the waste liquid transported in the second liquid transport pipeline;

[0014] Temperature sensor 2, used to detect the temperature of the waste liquid output from the treatment tank after the waste liquid has been treated with reaction precipitation;

[0015] A controller and an alarm, wherein the controller is electrically connected to the density meter, the first temperature sensor, the second temperature sensor and the alarm, and the controller controls the alarm to work based on the density meter, the first temperature sensor and the second temperature sensor.

[0016] Preferably, the controller controls the alarm to work based on the density meter, the temperature sensor 1 and the temperature sensor 2, comprising the following steps:

[0017] The sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction precipitation mechanism is calculated according to the following formula and the detection values ​​of the density meter, the temperature sensor 1 and the temperature sensor 2. The controller compares the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction precipitation mechanism with a preset sedimentation rate range of the particles. If the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction precipitation mechanism is not within the preset sedimentation rate range of the particles, the controller controls the alarm to sound an alarm.

[0018]

[0019] Wherein, V is the sedimentation rate of particles generated when the waste liquid is oxidized by the reaction sedimentation mechanism, ψ is the mass correction factor, g is the gravitational acceleration, A is the cross-sectional area of ​​the treatment tank, ρ1 is the density of the sediment generated by the reaction at the bottom of the treatment tank detected by the densitometer, ρ0 is the density of the waste liquid, and C d is the resistance coefficient in the free sedimentation process, k is the temperature correction coefficient, T1 is the detection value of the temperature of the waste liquid transported in the second infusion pipeline by the temperature sensor, T2 is the detection value of the temperature of the waste liquid output in the treatment tank after the reaction precipitation treatment by the temperature sensor, Re is the Reynolds number, μ is the dynamic viscosity coefficient, and D is the diameter of the second infusion pipeline.

[0020] The invention provides a waste liquid treatment device for a gas turbine thermal power plant. Compared with the prior art, the invention has the following beneficial effects:

[0021] 1. The above-mentioned waste liquid treatment device of a gas turbine thermal power plant can pre-treat the waste liquid through the filter component set up, and effectively remove the large particle impurities in the waste liquid. Secondly, before the heating mechanism cooperates with the reaction precipitation mechanism to oxidize and precipitate the waste liquid, the waste liquid is heated up so that the temperature of the waste liquid is raised to a range suitable for the oxidation reaction, which helps to accelerate the reaction between the organic matter in the waste liquid and the oxidant, improve the efficiency of oxidation decomposition, and at the same time keep the reaction temperature and pressure constant, which helps to control the progress of the oxidation reaction and prevent the reaction from being out of control or the generation of by-products due to temperature fluctuations or pressure changes, thereby effectively improving the efficiency of the waste liquid oxidation reaction and ensuring the treatment efficiency and treatment effect of the waste liquid treatment device.

[0022] 2. The above-mentioned waste liquid treatment device of a gas turbine thermal power plant can reduce the chemical oxygen demand (COD) by adding an oxidant to cause an oxidation decomposition reaction of organic matter in the waste liquid through the reaction precipitation mechanism, and then 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 inner wall of the treatment tank can be cleaned in time through the cleaning component to prevent the colloid from adhering to the inner wall of the treatment tank in the form of suspended matter, thereby affecting the treatment efficiency and treatment of the waste liquid treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a waste liquid treatment device for a gas turbine thermal power plant provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure inside an auxiliary box of a waste liquid treatment device of a gas turbine thermal power plant provided by an embodiment of the present invention;

[0026] Figure 3 A schematic top view of the structure of the connection between a fixing ring and a cleaning brush of a waste liquid treatment device of a gas turbine thermal power plant provided by an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Filter box; 2. Box body; 3. Heating mechanism; 4. First liquid delivery pipeline; 5. Reaction precipitation mechanism; 6. Guide plate; 7. Filter screen; 8. Slag discharge port; 9. Valve 1; 10. Second liquid delivery pipeline; 11. Heating box; 12. Air inlet pipe; 13. Air outlet pipe; 14. Heating elbow; 15. Water pump; 16. Valve 2; 17. Liquid level meter; 18. Processing tank; 19. Liquid storage tank; 20. Third liquid delivery pipeline; 21. Auxiliary box; 22. Drive assembly; 23 , drive motor; 24, turntable; 25, hinged rod; 26, groove one; 27, groove two; 28, slide groove one; 29, L-shaped rod; 30, slide rod; 31, connecting block; 32, support rod; 33, groove three; 34, slide groove two; 35, drive rack; 36, drive shaft; 37, drive gear; 38, stirring rod; 39, connecting bracket; 40, fixing sleeve; 41, guide rod; 42, fixing ring; 43, mounting block; 44, spring; 45, cleaning brush. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0030] The present invention provides the following embodiments

[0031] Example 1

[0032] The embodiment of the present invention provides a waste liquid treatment device for a combustion engine thermal power plant, such as Figure 1 As shown, it includes a filter box 1, which is fixedly mounted on the side wall of a box body 2. A filter assembly is arranged in the filter box 1, a heating mechanism 3 is arranged at the bottom of the box body 2, and a liquid outlet at the bottom of the filter box 1 is connected to the heating mechanism 3 through a first infusion pipe 4, a reaction precipitation mechanism 5 is arranged on one side of the heating mechanism 3, and the reaction precipitation mechanism 5 is connected to the heating mechanism 3 through a second infusion pipe 10.

[0033] Preferably, the filter assembly includes a guide plate 6 and a filter screen 7, and the guide plate 6 and the filter screen 7 are arranged at a certain angle in the filter box 1, one side of the guide plate 6 is fixedly mounted on the inner wall of the filter box 1, and both sides of the filter screen 7 are fixedly mounted on the inner wall of the filter box 1, and the filter box 1 is embedded with a slag discharge port 8 above one side of the filter screen 7, and the first infusion pipeline 4 is connected to a valve 9.

[0034] Preferably, the heating mechanism 3 includes: a heating box 11, the bottom of which is fixedly mounted on the bottom of the box body 2, an air inlet pipe 12 and an air outlet pipe 13 passing through the box body 2 and the side walls of the heating box 11 at an upper and lower interval, the air inlet pipe 12 and the air outlet pipe 13 of the heating elbow 14 are respectively connected to the air inlet pipe and the air outlet pipe in a one-to-one correspondence, a water pump 15 is fixedly mounted on the top of the heating box 11, and the water inlet of the second liquid infusion pipeline 10 is arranged at the lower part of the heating box 11, the water pump 15 and valve 16 are fixedly connected to the second liquid infusion pipeline 10, and a liquid level meter 17 is also fixedly connected to the second liquid infusion pipeline 10 located in the heating box 11.

[0035] The working principle and beneficial effects of the above technical solution are:

[0036] A waste liquid treatment device for a gas turbine thermal power plant of the present invention can pre-treat the waste liquid to be treated through a filter component arranged in a filter box 1, and effectively remove large particles of impurities contained in the waste liquid. When working, the waste liquid is first transported from the liquid inlet at the top of the filter box 1 to the filter box 1, and is buffered and guided by a guide plate 6 to the top of a filter screen 7, where the large particles of impurities in the waste liquid are removed by the filter screen 7. The filter screen 7 is arranged at a certain angle so that the impurities filtered at its top can be discharged through a slag discharge port 8. The filtered waste liquid is transported to a heating box 11 through a first liquid infusion pipe 4, and a valve 9 connected to the first liquid infusion pipe 4 can control the flow rate transported to the heating mechanism 3.

[0037] The above-mentioned heating mechanism 3 can heat the waste liquid before the reaction and precipitation treatment, so that the waste liquid reaches a suitable reaction temperature, thereby speeding up the time of the waste liquid treatment process. When working, high-temperature steam is first introduced into the heating elbow 14 through the air inlet pipe 12. At this time, the heating elbow 14 heats the waste water in the heating box 11 to a temperature suitable for the reaction, and then the waste liquid with the increased temperature is transported to the reaction precipitation mechanism 5 through the second liquid delivery pipeline 10 through the water pump 15. The liquid level meter 17 arranged in the heating box 11 can monitor the liquid level of the waste liquid in the heating box 11, and the valve 2 16 connected at the same time controls the flow rate of the waste liquid transported to the reaction precipitation mechanism 5; at the same time, in industrial places such as gas turbine thermal power plants, steam is often an easily accessible and low-cost energy source. By adopting a steam heating mechanism, the steam provided by the waste heat recovery system is used for heating, thereby realizing efficient use of energy, which not only helps to reduce energy consumption in the waste liquid treatment process, but also conforms to the concept of green, environmental protection and sustainable development.

[0038] The above-mentioned filtering component can pre-treat the waste liquid and effectively remove large particle impurities in the waste liquid. Secondly, before the heating mechanism 3 cooperates with the reaction precipitation mechanism 5 to oxidize and precipitate the waste liquid, the waste liquid is heated up so that the temperature of the waste liquid is increased to a range suitable for the oxidation reaction, which helps to accelerate the reaction between the organic matter in the waste liquid and the oxidant and improve the efficiency of oxidation decomposition. At the same time, it can also keep the reaction temperature and pressure constant, which helps to control the progress of the oxidation reaction and prevent the reaction from being out of control or the generation of by-products due to temperature fluctuations or pressure changes, thereby effectively improving the efficiency of the waste liquid oxidation reaction and ensuring the treatment efficiency and treatment effect of the waste liquid treatment device.

[0039] Example 2

[0040] On the basis of Example 1, Figure 1-Figure 3 As shown, the reaction precipitation mechanism 5 includes: a processing tank 18, the processing tank 18 is fixedly installed at the bottom of the box body 2, a liquid storage tank 19 is fixedly installed on the outer wall of the filter box 1, and the liquid outlet of the liquid storage tank 19 is connected with the liquid inlet on the top of the processing tank 18 through the third infusion pipe 20, the liquid outlet of the second infusion pipe 10 is connected with the liquid 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 driving component 22 is arranged in the processing box, and a stirring component and a cleaning component are arranged inside the processing tank 18, and the stirring component and the cleaning component are driven by the driving component 22.

[0041] Preferably, the driving assembly 22 comprises: a driving motor 23, the driving motor 23 is fixedly mounted on the inner side wall of the auxiliary box 21, a turntable 24 is fixedly mounted on the output shaft of the driving motor 23, a hinged rod 25 is fixedly connected to the turntable 24 away from the center, a groove 26 and a groove 27 are embedded in the top of the auxiliary box 21, the top of the slide 28 is slidably connected in the groove 26, the hinged rod 25 is slidably connected in the slide 28, one end of the L-shaped rod 29 is fixedly connected to the slide 28, a sliding rod 30 is fixedly connected to the L-shaped rod 29, and the upper end of the sliding rod 30 is slidably connected in the groove 27, both side walls of the connecting block 31 are fixedly connected with support rods 32, two grooves 33 are embedded in the inner wall of the auxiliary box 21 in left and right pairs, the two ends of the support rod 32 are respectively slidably connected in the groove 3 33, and the lower end of the sliding rod 30 is slidably connected to the slide 2 34 embedded in the connecting block 31.

[0042] Preferably, the stirring assembly includes: a driving rack 35, both ends of which slide through the side walls of the auxiliary box 21, and one end of the driving rack 35 is fixedly connected to the lower end of the L-shaped rod 29, and the lower end of the driving shaft 36 rotates through the top of the processing tank 18 and is fixedly installed with a stirring rod 38, and the upper end of the driving shaft 36 is fixedly installed with a driving gear 37, and the driving gear 37 is meshed with the driving rack 35.

[0043] Preferably, the cleaning assembly includes: a connecting bracket 39, the top of the connecting bracket 39 is slidably connected to the auxiliary box 21, the top of the connecting bracket 39 is fixedly connected to the bottom of the connecting block 31, the two ends of the two fixing sleeves 40 are symmetrically fixedly installed on the top and bottom of the processing tank 18, the two ends of the two guide rods 41 are respectively fixedly connected to the top and bottom of the two fixing sleeves 40, the lower end of the connecting bracket 39 slides through the top of the processing tank 18 and is slidably connected to the guide rod 41, a number of fixing rings 42 are slidably connected to the guide rod 41 through the mounting block 43 at an upper and lower interval, a number of springs 44 are fixedly connected between the fixing rings 42, the bottom of the fixing sleeve 40 and the bottom of the connecting bracket 39, the springs 44 are sleeved on the guide rod 41, and a cleaning brush 45 is fixedly installed on the outer side wall of the fixing rings 42.

[0044] The working principle and beneficial effects of the above technical solution are:

[0045] The above-mentioned 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 oxidation decomposition reaction and reduces the COD concentration. During operation, the drive assembly 22 is used to start the drive motor 23, and the drive motor 23 drives the turntable 24 fixedly connected to the output shaft of the drive motor 23 to rotate, so that the slideway 1 28 slidably connected by the hinged rod 25 slides left and right along the groove 1 26 as the turntable 24 rotates, and the L-shaped rod 29 fixedly connected to the slideway 1 28 is driven by the slideway 1 28 to slide left and right along the side wall of the auxiliary box 21, thereby driving the connected stirring assembly to work, and the sliding rod 30 fixedly connected to the L-shaped rod 29 is driven by the L-shaped rod 29 to slide left and right in the groove 2 27, driving the hinged connection block 31 to move up and down under the action of the support rod 32, and the two ends of the support rod 32 are slidably connected in the groove 3 33, which can ensure that the connection block 31 can move up and down smoothly, thereby driving the connected cleaning assembly to work.

[0046] By driving the L-shaped rod 29, the driving rack 35 fixedly connected to the L-shaped rod 29 slides left and right along the side wall of the auxiliary box 21, and the driving rack 35 is meshed with the driving gear 37 for transmission, thereby realizing the synchronous rotation of the driving gear 37. At the same time, the driving shaft 36 fixedly connected to the driving gear 37 is rotated along the top of the treatment tank 18, so that the stirring rod 38 fixedly connected to the lower end of the driving shaft 36 rotates synchronously. When the oxidant in the liquid storage tank 19 is transported to the treatment tank 18 through the third infusion pipeline 20, it undergoes an oxidation reaction with the wastewater in the treatment tank 18. At this time, the stirring mechanism can accelerate the mixing speed of the oxidant and the wastewater, thereby accelerating the reaction rate, and can also ensure the efficiency of the reaction treatment mechanism in treating the wastewater, and fully mix the reactants and products, thereby improving the treatment efficiency. The connecting block 31 drives the fixedly connected 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 in the fixed sleeve 40, and a plurality of fixing rings 42 are slidably connected to the guide rod 41 at an upper and lower interval through the mounting block 43. A plurality of springs 44 are fixedly connected between the fixing rings 42, the bottom of the fixing sleeve 40 and the bottom of the connecting bracket 39, and the springs 44 are sleeved on the guide rod 41. The connecting bracket 39 drives the plurality of fixing rings 42 to move up and down along the guide rod 41 under the action of the elastic force of the plurality of springs 44. At the same time, the cleaning brushes 45 fixedly connected to the plurality of fixing rings 42 complete the effective removal of large particle products attached to the inner wall of the processing tank 18, thereby avoiding long-term accumulation affecting the processing efficiency of the reaction precipitation mechanism 5.

[0047] The above-mentioned reaction precipitation mechanism 5 can reduce the chemical oxygen demand (COD) by adding an oxidant to cause an oxidation decomposition reaction of organic matter in the waste liquid. Secondly, the stirring mechanism fully stirs the waste liquid during the oxidation reaction to promote the mixing of reactants and products and accelerate the efficiency of the reaction. At the same time, the inner wall of the treatment tank 18 can be cleaned in time through the cleaning component to prevent the colloid from adhering to the inner wall of the treatment tank 18 in the form of suspended matter, thereby affecting the treatment efficiency and treatment of the waste liquid treatment device.

[0048] Example 3

[0049] On the basis of Embodiment 1 or 2, a reaction performance detection device is further included, which is used to detect the working state of the reaction precipitation mechanism 5 when the waste liquid is subjected to oxidation reaction treatment, and the reaction performance detection device includes:

[0050] A densitometer, used to detect the density of the precipitate generated by the reaction at the bottom of the treatment tank 48;

[0051] Temperature sensor 1, used to detect the temperature of the waste liquid transported in the second liquid transport pipeline 10;

[0052] Temperature sensor 2, used to detect the temperature of the waste liquid output from the treatment tank 18 after the waste liquid has been subjected to reaction precipitation treatment;

[0053] A controller and an alarm, wherein the controller is electrically connected to the density meter, the first temperature sensor, the second temperature sensor and the alarm, and the controller controls the alarm to work based on the density meter, the first temperature sensor and the second temperature sensor.

[0054] Preferably, the controller controls the alarm to work based on the density meter, the temperature sensor 1 and the temperature sensor 2, comprising the following steps:

[0055] According to the following formula and the detection values ​​of the density meter, the temperature sensor 1 and the temperature sensor 2, the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment through the reaction precipitation mechanism 5 is calculated, and the controller compares the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment through the reaction precipitation mechanism 5 with the preset sedimentation rate range of the particles. If the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment through the reaction precipitation mechanism 5 is not within the preset sedimentation rate range of the particles, the controller controls the alarm to sound an alarm;

[0056]

[0057] Wherein, V is the sedimentation rate of particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction sedimentation mechanism 5, ψ is the mass correction factor (generally 0.08-0.1), g is the gravitational acceleration, A is the cross-sectional area of ​​the treatment tank 18, ρ1 is the detection value of the density of the precipitate generated by the reaction at the bottom of the treatment tank 18 by the densitometer, ρ0 is the density of the waste liquid, and C d is the resistance coefficient in the free sedimentation process (obtained by looking up the table), k is the temperature correction coefficient (the value range is 1.1-1.3), T1 is the detection value of the temperature of the waste liquid transported in the second liquid delivery pipeline 10 by the temperature sensor pair, T2 is the detection value of the temperature of the waste liquid output in the treatment tank 18 after the waste liquid is treated by reaction precipitation by the temperature sensor pair, Re is the Reynolds number (the value range is 2-2.3×10 3 ), μ is the dynamic viscosity coefficient (in Pa·S, obtained by looking up the table), and D is the diameter of the second infusion pipeline 10.

[0058] The beneficial effects of the above technical solution are as follows: first, according to the formula and the detection values ​​of the density meter, the temperature sensor 1 and the temperature sensor 2, the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction precipitation mechanism 5, the mass correction factor, the gravity acceleration, the cross-sectional area of ​​the processing tank 18, the density of the precipitate generated by the reaction at the bottom of the processing tank 18, the density of the waste liquid, the resistance coefficient during free sedimentation, the temperature correction coefficient, the temperature of the waste liquid transported in the second infusion pipeline 10, the temperature of the waste liquid output from the processing tank 18 after the waste liquid is subjected to reaction precipitation treatment, the dynamic viscosity coefficient, and the diameter of the second infusion pipeline 10 are calculated, so that the calculation result is more accurate and reliable;

[0059] Secondly, the controller controls the alarm based on the density meter, temperature sensor 1 and temperature sensor 2. If the sedimentation rate of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction precipitation mechanism 5 is not within the preset particle sedimentation rate range, the controller controls the alarm to sound, thereby reminding the staff to promptly inspect the reaction precipitation mechanism 5, and perform maintenance on the waste liquid treatment device according to the actual inspection results to maintain the use requirements of the waste liquid treatment device for waste liquid reaction treatment, while ensuring the overall normal and stable operation and treatment efficiency of the waste liquid treatment device, and effectively improving the service life of the waste liquid treatment device, further meeting the use requirements of the waste liquid treatment device for reliability and stability of waste liquid treatment, and by real-time monitoring of the working status of the waste liquid treatment device during waste liquid treatment, not only the efficiency and effect of the waste liquid treatment device on waste liquid treatment is improved, but also it is ensured that the waste liquid treatment device can quickly discover and complete maintenance in time after a failure occurs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste liquid treatment device for a gas turbine thermal power plant, characterized in that: The invention comprises a filter box (1), wherein the filter box (1) is fixedly mounted on a side wall of a box body (2), a filter assembly is arranged in the filter box (1), a heating mechanism (3) is arranged at the bottom of the box body (2), and a liquid outlet at the bottom of the filter box (1) is connected to the heating mechanism (3) through a first liquid infusion pipeline (4), a reaction precipitation mechanism (5) is arranged 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 infusion pipeline (10).

2. The waste liquid treatment device of a gas turbine thermal power plant according to claim 1, characterized in that: The filter assembly comprises a guide plate (6) and a filter screen (7), wherein the guide plate (6) and the filter screen (7) are arranged at a certain angle in the filter box (1), one side of the guide plate (6) is fixedly mounted on the inner wall of the filter box (1), and both sides of the filter screen (7) are fixedly mounted on the inner wall of the filter box (1), and the filter box (1) is provided with a slag discharge port (8) above one side of the filter screen (7), and the first liquid infusion pipeline (4) is connected to a valve 1 (9).

3. The waste liquid treatment device of a gas turbine thermal power plant according to claim 1, characterized in that: The heating mechanism (3) comprises: a heating box (11), the bottom of the heating box (11) is fixedly mounted on the bottom of the box body (2), an air inlet pipe (12) and an air outlet pipe (13) are spaced apart from each other and penetrate the box body (2) and the side wall of the heating box (11), the air inlet and the air outlet of the heating elbow (14) are respectively connected to the air inlet pipe (12) and the air outlet pipe (13) in a one-to-one correspondence, a water pump (15) is fixedly mounted on the top of the heating box (11), and the water inlet of the second liquid infusion pipeline (10) is arranged at the lower part of the heating box (11), the water pump (15) and the second valve (16) are fixedly connected to the second liquid infusion pipeline (10), and a liquid level meter (17) is also fixedly connected to the second liquid infusion pipeline (10) located in the heating box (11).

4. The waste liquid treatment device of a gas turbine thermal power plant according to claim 1, characterized in that: The reaction precipitation mechanism (5) comprises: a processing tank (18), the processing tank (18) is fixedly mounted at the bottom of the box body (2), a liquid storage tank (19) is fixedly mounted on the outer wall of the filter box (1), and the liquid outlet of the liquid storage tank (19) is connected to the liquid inlet at the top of the processing tank (18) through a third liquid infusion pipeline (20), the liquid outlet of the second liquid infusion pipeline (10) is connected to the liquid inlet on the side wall of the processing tank (18), an auxiliary box (21) is fixedly mounted on the top of the processing tank (18), and a driving component (22) is arranged in the processing tank, and a stirring component and a cleaning component are arranged inside the processing tank (18), and the stirring component and the cleaning component are driven by the driving component (22).

5. The waste liquid treatment device of a gas turbine thermal power plant according to claim 4, characterized in that: The driving assembly (22) comprises: a driving motor (23), the driving motor (23) being fixedly mounted on the inner side wall of the auxiliary box (21), a rotating disk (24) being fixedly mounted on the output shaft of the driving motor (23), a hinged rod (25) being fixedly connected to the rotating disk (24) away from the center, a groove 1 (26) and a groove 2 (27) being embedded in the top of the auxiliary box (21), a top of a slide groove 1 (28) being slidably connected to the groove 1 (26), the hinged rod (25) being slidably connected to the slide groove 1 (28), and an L-shaped rod (2 One end of the auxiliary box (21) is fixedly connected to the slide groove 1 (28), 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 2 (27), the two side walls of the connecting block (31) are fixedly connected with support rods (32), two grooves 3 (33) are embedded in the inner wall of the auxiliary box (21) on the left and right, the two ends of the support rod (32) are respectively slidably connected to the groove 3 (33), and the lower end of the slide rod (30) is slidably connected to the slide groove 2 (34) embedded in the connecting block (31).

6. The waste liquid treatment device of a gas turbine thermal power plant according to claim 4, characterized in that: The stirring assembly comprises: a driving rack (35), both ends of which slide through the side walls of the auxiliary box (21), and one end of the driving rack (35) is fixedly connected to the lower end of the L-shaped rod (29), the lower end of the driving shaft (36) rotates through the top of the processing tank (18) and is fixedly installed with a stirring rod (38), and the upper end of the driving shaft (36) is fixedly installed with a driving gear (37), and the driving gear (37) is meshed with the driving rack (35).

7. The waste liquid treatment device of a gas turbine thermal power plant according to claim 1, characterized in that: It also includes a reaction performance detection device for detecting the working state of the reaction precipitation mechanism (5) when the waste liquid is subjected to oxidation reaction treatment, and the reaction performance detection device includes: A densitometer for detecting the density of the precipitate generated by the reaction at the bottom of the treatment tank (18); Temperature sensor 1, used for detecting the temperature of the waste liquid transported in the second liquid transport pipeline (10); Temperature sensor 2, used to detect the temperature of the waste liquid output from the treatment tank (18) after the waste liquid has been subjected to reaction precipitation treatment; A controller and an alarm, wherein the controller is electrically connected to the density meter, the first temperature sensor, the second temperature sensor and the alarm, and the controller controls the alarm to work based on the density meter, the first temperature sensor and the second temperature sensor.

8. The waste liquid treatment device of a gas turbine thermal power plant according to claim 7, characterized in that: The controller controls the alarm to work based on the density meter, the temperature sensor 1 and the temperature sensor 2, including the following steps: The sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction sedimentation mechanism (5) is calculated according to the following formula and the detection values ​​of the density meter, the temperature sensor 1 and the temperature sensor 2. The controller compares the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction sedimentation mechanism (5) with a preset sedimentation rate range of the particles. If the sedimentation rate V of the particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction sedimentation mechanism (5) is not within the preset sedimentation rate range of the particles, the controller controls the alarm to sound an alarm. Wherein, V is the sedimentation rate of particles generated when the waste liquid is subjected to oxidation reaction treatment by the reaction sedimentation mechanism, ψ is the mass correction factor, g is the gravitational acceleration, A is the cross-sectional area of ​​the treatment tank (18), ρ1 is the density of the sediment generated by the reaction at the bottom of the treatment tank (18) detected by the densitometer, ρ0 is the density of the waste liquid, and C d is the resistance coefficient in the free sedimentation process, k is the temperature correction coefficient, T1 is the detection value of the temperature of the waste liquid transported in the second liquid delivery pipeline (10) by the temperature sensor, T2 is the detection value of the temperature of the waste liquid output in the treatment tank (18) after the waste liquid is subjected to reaction precipitation treatment by the temperature sensor, Re is the Reynolds number, μ is the dynamic viscosity coefficient, and D is the diameter of the second liquid delivery pipeline (10).

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