Steam heat water co-production type rto pulsation temperature control energy saving and carbon reduction device

Abstract

This invention relates to the field of waste gas incineration treatment technology, and particularly to a pulse-controlled temperature-controlled energy-saving and carbon-reducing device based on a steam-hot water cogeneration RTO. It includes a three-chamber regenerative combustion furnace consisting of a combustion chamber and a regenerator chamber. A spray assembly is installed on one side of the furnace, and multiple inlet / outlet switching assemblies are installed at the bottom. Each inlet / outlet switching assembly includes a base box fixedly installed at the bottom of the corresponding regenerator chamber. A plunger for switching inlet and outlet gases and preventing mixing is rotatably installed inside the base box. This invention first achieves simultaneous cleanliness of the inlet gas and continuous, stable pretreatment through multi-stage desulfurization, demisting, and solution concentration self-regulation. Then, it enhances combustion completeness through a precise inlet / outlet gas switching mechanism, and combines multi-point temperature measurement and valve linkage to achieve efficient cascade utilization of waste heat, achieving the goals of efficient desulfurization and denitrification, and maximizing waste heat recovery. This results in a combined effect of efficient desulfurization and denitrification, maximized waste heat recovery, and reduced operating energy consumption and carbon emissions.

Description

Technical Field

[0001] This invention relates to the field of waste gas incineration treatment technology, and in particular to a pulsed temperature control energy-saving and carbon reduction device based on steam-hot water cogeneration RTO. Background Technology

[0002] RTO equipment is oriented towards the core function of waste gas combustion. Through the high-temperature environment provided by its built-in combustion chamber, combined with the preheating of the waste gas to be treated by the heat storage chamber and the switching valve group to ensure the orderly flow of air, it ensures that harmful components such as VOCs in the waste gas are fully burned and decomposed to achieve the purification goal. The waste gas combustion process is the core link for RTO equipment to achieve environmental protection treatment, and the high-temperature flue gas generated is the heat source of RTO waste heat recovery system. The two work together to support the dual core value of RTO equipment of "waste gas purification + waste heat utilization". Moreover, the sufficiency of waste gas combustion directly determines the treatment efficiency of RTO equipment and the potential for subsequent waste heat recovery.

[0003] Existing RTO waste heat recovery technologies generally suffer from a significant drawback: they are limited to a single production method, typically producing only either steam or hot water. They lack the ability to adapt waste heat distribution and coordinated control to meet the dynamic load demands of production and daily life. When the production end requires a large amount of steam but the unit can only produce hot water, or when the residential end needs hot water but the unit can only produce steam, high-grade flue gas waste heat is directly discharged due to the mismatch between the output method and actual demand, resulting in severe waste heat waste. Even when the output method matches the demand, the lack of real-time response to load fluctuations means that the waste heat recovery intensity remains fixed during periods of low load.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. First, multi-stage desulfurization, demisting, and self-regulation of solution concentration are used to simultaneously ensure clean intake air and continuous and stable pretreatment. Then, a precise switching mechanism between intake and exhaust air is used to improve combustion completeness. Combined with multi-point temperature measurement and valve linkage, waste heat is utilized efficiently in stages, achieving the goals of efficient desulfurization and denitrification and maximizing waste heat recovery. This results in a combined effect of efficient desulfurization and denitrification, maximized waste heat recovery, and a dual reduction in operating energy consumption and carbon emissions, significantly reducing the operating energy consumption and carbon emissions of the RTO. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving and carbon-reducing device based on a steam-hot water cogeneration RTO with pulsed temperature control, in order to solve the aforementioned technical defects.

[0006] The objective of this invention can be achieved through the following technical solution: a steam-hot water cogeneration RTO pulse temperature control energy-saving and carbon-reducing device, comprising a three-chamber regenerative combustion furnace consisting of a combustion chamber and a regenerator chamber. A spray assembly is provided on one side of the three-chamber regenerative combustion furnace, and multiple inlet / outlet switching assemblies are provided at the bottom. The inlet / outlet switching assembly includes a bottom box fixedly installed at the bottom of the corresponding regenerator chamber. A plunger for switching inlet and outlet air and preventing them from mixing is rotatably installed inside the bottom box. The spray assembly includes a treatment tank, an air inlet pipe is installed on the treatment tank, and a gas distribution plate is installed at the end of the air inlet pipe. Multiple spray heads are provided on the air inlet pipe.

[0007] Preferably, the heat storage chamber is equipped with a heat storage ceramic and an adsorption layer below the heat storage ceramic that is filled with an SCR catalyst. Multiple temperature sensors are installed at different heights inside the heat storage ceramic.

[0008] Preferably, the bottom box has an inlet pipe and an outlet pipe fixedly connected to both sides, the top of the treatment tank is fixedly connected to the multiple inlet pipes and an air inlet connection pipe is fixedly connected, a T-shaped pipe is provided on one side of the three-chamber regenerative combustion furnace, and a steam generator and a hot water tank are fixedly connected to the T-shaped pipe, and an air outlet connection pipe is fixedly connected to the T-shaped pipe and the multiple outlet pipes.

[0009] Preferably, the bottom of the three-chamber regenerative combustion furnace is provided with a purge air duct, and a one-way valve is fixedly installed between the purge air duct and the corresponding inlet pipe. The bottom of the bottom box is fixedly connected with a drain pipe, and a one-way valve is provided on the drain pipe.

[0010] Preferably, the T-shaped pipe is equipped with an electromagnetic control valve one for controlling the exhaust flow of the exhaust pipe and an electromagnetic control valve two for controlling the air intake flow of the hot water tank, and the hot water tank outlet pipe is equipped with a temperature sensor two.

[0011] Preferably, the bottom and top sides of the bottom box are respectively provided with an upper slot and a lower slot communicating with the heat storage chamber and the drain pipe. An annular groove is provided on the annular outer wall of the plunger. L-shaped air inlet chamber and L-shaped air outlet chamber are respectively provided at both ends of the plunger and on both sides of the annular groove. The other ends of the L-shaped air inlet chamber and L-shaped air outlet chamber pass through both sides of the annular outer wall of the plunger.

[0012] Preferably, a bevel gear ring is fixedly installed on one end face of the plunger, a servo motor is installed on the inlet pipe, and a bevel gear that meshes with the bevel gear ring is installed on the output shaft of the servo motor.

[0013] Preferably, a wire mesh demister is fixedly installed inside the treatment tank, a diversion sleeve is installed on the vertical section of the air inlet pipe, multiple spray heads are installed on the annular outer wall of the diversion sleeve, and a liquid inlet pipe extending to the outside of the treatment tank is fixedly connected to the diversion sleeve.

[0014] Preferably, a U-shaped drain pipe is fixedly connected to the bottom of one side of the treatment tank, and a water-blocking pipe is slidably connected to the end of the U-shaped drain pipe inside the treatment tank. A hollow float is fixedly connected to the water-blocking pipe by a support rod.

[0015] The beneficial effects of this invention are as follows:

[0016] (1) In this invention, the waste gas is dispersed and injected into the ammonia buffer solution through the gas distribution plate in the treatment tank, so that the waste gas forms small bubbles and fully contacts the solution to complete the initial desulfurization. Then, the atomized solution sprayed by multiple spray heads through the diversion sleeve is used for secondary desulfurization. The multi-stage treatment realizes the efficient desulfurization treatment of the waste gas. Then, the wire mesh demister intercepts the mist droplets carried in the waste gas to prevent the solution impurities carried by the mist droplets from contaminating the heat storage ceramic and SCR catalyst. At the same time, with the help of the linkage between the hollow float and the water blocking pipe, the siphon effect is used to realize the rapid and automatic discharge and cessation of the saturated ammonia buffer solution, ensuring the stability of the initial desulfurization solution concentration and ensuring the continuous and stable operation of the pretreatment stage.

[0017] (2) The present invention improves the combustion efficiency and energy recovery rate of RTO by linking precise switching of inlet and outlet air with the cascade utilization of waste heat, thereby achieving the goal of energy saving and carbon reduction: By rotating the plunger, the staggered layout of the L-shaped inlet chamber and the L-shaped outlet chamber can accurately control the inlet and outlet states of each heat storage chamber, avoiding the mixing of inlet and outlet air. Combined with the purging of the purging duct, the thoroughness of combustion is further improved; Multiple temperature sensors 1 in the heat storage ceramic collect multi-point temperature data in real time. The controller adjusts the opening amount of the electromagnetic control valve 1 according to the average temperature. Combined with the hot water temperature feedback from the temperature sensor 2, the electromagnetic control valve 2 is adjusted to dynamically allocate the flue gas flow to the steam generator and the hot water tank, so that the waste heat of the high-temperature flue gas can be utilized in a cascade and efficient manner. This ensures the stable preheating effect of the heat storage ceramic and accurately controls the output of steam and hot water, greatly improving the waste heat utilization rate and reducing the energy consumption and carbon emissions per unit of waste gas treated during the operation of the RTO. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation of the heat storage ceramic of the present invention;

[0022] Figure 4 This is a schematic diagram of the multi-point temperature detection of the heat storage ceramic of the present invention;

[0023] Figure 5This is a schematic diagram showing the connection between the spray assembly and the air inlet / outlet switching assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the bottom box of the present invention;

[0025] Figure 7 This is a schematic diagram of the plunger structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the spray assembly of the present invention;

[0027] Figure 9 This is a schematic diagram of the cooperation between the U-shaped drain pipe and the water-blocking pipe of the present invention.

[0028] Legend:

[0029] 1. Three-chamber regenerative combustion furnace; 11. Regenerative ceramic; 12. Adsorption layer; 13. Purge air duct; 14. Drain pipe;

[0030] 2. Spray assembly; 21. Treatment tank; 22. Air inlet pipe; 23. Air distribution plate; 24. Wire mesh demister; 25. Diverter sleeve; 26. Liquid inlet pipe; 27. U-shaped drain pipe; 28. Water plugging pipe; 29. ​​Hollow float;

[0031] 3. Inlet / outlet switching assembly; 31. Base box; 32. Plunger; 33. Inlet pipe; 34. Outlet pipe; 35. Inlet connecting pipe; 36. T-shaped pipe; 37. Steam generator; 38. Hot water tank; 39. Outlet connecting pipe; 310. Electromagnetic control valve one; 311. Electromagnetic control valve two; 312. Upper slot; 313. Lower slot; 314. Annular groove; 315. L-shaped inlet chamber; 316. L-shaped outlet chamber. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1-7 As shown, the problem that existing RTOs can only produce either steam or hot water and lack waste heat distribution and linkage control to adapt to the dynamic load demand of production and life can be solved by the following solutions;

[0034] This embodiment is based on a steam-hot water cogeneration RTO pulse temperature control energy-saving and carbon reduction device, including a three-chamber regenerative combustion furnace 1 consisting of a combustion chamber and a heat storage chamber. A spray assembly 2 is provided on one side of the three-chamber regenerative combustion furnace 1, and multiple inlet and outlet gas switching assemblies 3 are provided at the bottom. The inlet and outlet gas switching assembly 3 includes a bottom box 31 fixedly installed at the bottom of the corresponding heat storage chamber. A plunger 32 for switching inlet and outlet gas and preventing them from mixing is rotatably installed inside the bottom box 31. The spray assembly 2 includes a treatment tank 21, an air inlet pipe 22 is installed on the treatment tank 21, and a gas distribution plate 23 is installed at the end of the air inlet pipe 22. Multiple spray heads are provided on the air inlet pipe 22.

[0035] The heat storage chamber is equipped with a heat storage ceramic 11 and an adsorption layer 12 located below the heat storage ceramic 11 and filled with an SCR catalyst. Multiple temperature sensors are installed at different heights inside the heat storage ceramic 11. The heat storage ceramic 11 is divided into three heights in the vertical direction: high, medium and low. Multiple temperature sensors are installed at each height. Multiple temperature sensors can avoid the problem that a single temperature measurement point cannot accurately reflect the temperature distribution of the heat storage ceramic 11.

[0036] During the flue gas exhaust process, the heating temperature of the heat storage ceramic 11 is detected at multiple points to obtain multiple preheating temperature values, which are then transmitted to the controller. The controller integrates the data, takes the average value, and compares it with the preset temperature value to provide a precise basis for the control of waste heat distribution. At the same time, the adsorption layer 12 is set at this position to simultaneously preheat the SCR catalyst.

[0037] The bottom box 31 is fixedly connected to the two sides of the inlet pipe 33 and the outlet pipe 34 respectively. The top of the treatment tank 21 is fixedly connected to the multiple inlet pipes 33 with an air inlet connection pipe 35. A T-shaped pipe 36 is provided on one side of the three-chamber regenerative combustion furnace 1. A steam generator 37 and a hot water tank 38 are fixedly connected to the T-shaped pipe 36. The steam generator 37 and the hot water tank 38 are both provided with spiral pipes for high-temperature flue gas flow. The spiral pipes are connected to the T-shaped pipe 36. An outlet connection pipe 39 is fixedly connected between the T-shaped pipe 36 and the multiple outlet pipes 34.

[0038] The exhaust gas enters the bottom box 31 through the inlet connecting pipe 35 and the inlet pipe 33, and then enters the combustion chamber through the adsorption layer 12 and the heat storage ceramic 11 for combustion. The high-temperature flue gas generated by combustion enters the T-shaped pipe 36 through the outlet pipe 34 and the outlet connecting pipe 39, and then enters the spiral tubes inside the steam generator 37 and the hot water tank 38 in two parts respectively. The waste heat of the flue gas is used to generate steam and hot water for production and domestic use, realizing the cascade utilization of waste heat.

[0039] The bottom of the three-chamber regenerative combustion furnace 1 is equipped with a purge duct 13, and a one-way valve is fixedly installed between the purge duct 13 and the corresponding inlet pipe 33. The bottom of the bottom box 31 is fixedly connected to a drain pipe 14, and a one-way valve is installed on the drain pipe 14. After the exhaust gas is completely burned, the drain pipe 14 injects clean gas into the regenerative chamber and the combustion chamber to discharge the residual exhaust gas. The one-way valve can prevent gas backflow. The purge duct 13 is used to remove impurities from the equipment before the initial gas intake. The one-way valve prevents the exhaust gas or flue gas from flowing back into the purge duct 13. The combination of inlet and outlet gas switching further improves the completeness of combustion.

[0040] The T-shaped pipe 36 is equipped with an electromagnetic control valve 310 that controls the exhaust flow of the exhaust pipe 39. When the average preheating temperature of the heat storage ceramic 11 is greater than the preset temperature value, the controller controls the electromagnetic control valve 310 to increase the opening amount, thereby improving the high-temperature flue gas discharge efficiency and increasing the output of steam and hot water. When the average value is less than the preset temperature value, the opening amount is reduced to ensure the preheating effect of the next flue gas. The controller also controls the electromagnetic control valve 311 that controls the airflow of the hot water tank 38. The outlet pipe of the hot water tank 38 has a built-in temperature sensor 2.

[0041] Temperature sensor 2 detects the temperature of the produced hot water, obtains the waste heat temperature value, and transmits it to the controller. When the waste heat temperature value of the hot water is greater than the preset water temperature value, the controller controls solenoid control valve 2 311 to reduce the opening amount. When it is less than the preset water temperature value, the controller increases the opening amount to ensure that the hot water temperature is constant and the steam output is reasonably distributed, so as to achieve load adaptive regulation.

[0042] The bottom box 31 has an upper slot 312 and a lower slot 313 on the top and bottom sides respectively, which are connected to the heat storage chamber and the drain pipe 14. The annular outer wall of the plunger 32 has an annular groove 314. The two ends of the plunger 32 and the sides of the annular groove 314 respectively have an L-shaped air inlet chamber 315 and an L-shaped air outlet chamber 316. The other ends of the L-shaped air inlet chamber 315 and the L-shaped air outlet chamber 316 respectively penetrate through the two sides of the annular outer wall of the plunger 32.

[0043] The staggered arrangement of the L-shaped air inlet chamber 315 and the L-shaped air outlet chamber 316 is used to precisely control the air intake and exhaust states of each heat storage chamber. During the switching process, the mixture of exhaust gas in the L-shaped air inlet chamber 315 and the flue gas after combustion is avoided, and the discharge of a small amount of untreated exhaust gas is avoided. The upper slot 312 is the channel for gas to enter and exit the heat storage chamber, and the lower slot 313, together with the drain pipe 14, realizes the discharge of residual gas.

[0044] A bevel gear ring is fixedly installed on one end face of the plunger 32. A servo motor is installed on the inlet pipe 33, and a bevel gear that meshes with the bevel gear ring is installed on the output shaft of the servo motor. After the servo motor starts, it drives the plunger 32 to rotate through the meshing of the bevel gear and the bevel gear ring. The three sets of plungers 32 are respectively labeled as plunger A 32, plunger B 32 and plunger C 32.

[0045] During operation, the L-shaped air inlet chamber 315 on plunger A 32 is connected to the upper slot 312 (air intake), the L-shaped air outlet chamber 316 on plunger B 32 is connected to the upper slot 312 (air outlet), and the L-shaped air inlet chamber 315 and L-shaped air outlet chamber 316 on plunger C 32 are not connected to the upper slot 312 (closed) in a cycle mode.

[0046] After a single combustion cycle is completed, the three sets of plungers 32 are controlled to rotate. During the rotation, the L-shaped air inlet chamber 315 (or L-shaped air outlet chamber 316) on the plunger 32 is completely separated from the upper slot 312. Then, the L-shaped air outlet chamber 316 (or L-shaped air inlet chamber 315) is connected to the upper slot 312 again. This prevents a small amount of exhaust gas to be burned from being discharged through the L-shaped air outlet chamber 316, achieving precise switching between air inlet and outlet. This ensures the orderly progress of exhaust gas circulation preheating and combustion treatment, ultimately improving the RTO combustion efficiency and energy recovery rate, and reducing operating energy consumption and carbon emissions per unit of exhaust gas treated.

[0047] Example 2: Please refer to Figure 8 and Figure 9 As shown, the problem of difficulty in performing efficient desulfurization and denitrification pretreatment of exhaust gas before combustion can be solved by the following solutions;

[0048] In this embodiment, the spray assembly 2 includes a treatment tank 21, an air inlet pipe 22 is installed on the treatment tank 21, and a gas distribution plate 23 is installed at the end of the air inlet pipe 22. Multiple spray heads are provided on the air inlet pipe 22. After the ammonia buffer solution is injected into the distribution sleeve 25 through the liquid inlet pipe 26, it is first sprayed out from multiple spray heads over a wide area and collected at the bottom of the treatment tank 21, thus submerging the gas distribution plate 23. After the exhaust gas is injected into the gas distribution plate 23 through the air inlet pipe 22, it is dispersed from the gas distribution plate 23 into the ammonia buffer solution in the treatment tank 21, forming fine bubbles that fully contact the solution, thus completing the preliminary desulfurization treatment.

[0049] The heat storage chamber is equipped with a heat storage ceramic 11 and an adsorption layer 12 located below the heat storage ceramic 11 and filled with an SCR catalyst. Multiple temperature sensors are installed at different heights inside the heat storage ceramic 11. When the exhaust gas after desulfurization in the treatment tank 21 enters the heat storage chamber, it first passes through the adsorption layer 12 and uses the preheated SCR catalyst to achieve efficient denitrification treatment, thus avoiding harmful gases from entering the combustion chamber and causing secondary pollution.

[0050] A wire mesh demister 24 is fixedly installed inside the treatment tank 21. A diversion sleeve 25 is installed on the vertical section of the air inlet pipe 22. Multiple spray heads are installed on the annular outer wall of the diversion sleeve 25. An inlet pipe 26 that extends through to the outside of the treatment tank 21 is fixedly connected to the diversion sleeve 25. The exhaust gas after preliminary desulfurization rises and is discharged in the ammonia buffer solution. Before entering the air inlet connection pipe 35, it will undergo secondary desulfurization through the atomized solution sprayed over a wide area by multiple spray heads. This thoroughly desulfurizes the gas entrained in the bubbles formed inside the solution. Subsequently, the wire mesh demister 24 intercepts the mist droplets entrained in the exhaust gas, preventing the solution impurities carried by the mist droplets from contaminating the subsequent heat storage ceramic 11 and SCR catalyst, thus ensuring the service life and treatment effect of the core components.

[0051] A U-shaped drain pipe 27 is fixedly connected to the bottom of one side of the treatment tank 21. A water blocking pipe 28 is slidably connected to the end of the U-shaped drain pipe 27 inside the treatment tank 21. A hollow float 29 is fixedly connected to the water blocking pipe 28 by a support rod. As the spray desulfurization proceeds, the water level of the ammonia buffer solution inside the treatment tank 21 continues to rise. When the water level is higher than the top of the U-shaped drain pipe 27, it contacts the hollow float 29, pushing the hollow float 29 to carry the water blocking pipe 28 upward, causing the bottom of the water blocking pipe 28 to separate from the bottom of the treatment tank 21, and automatically opening the U-shaped drain pipe 27.

[0052] The pressure generated by the continuous inflow of waste gas into the treatment tank 21 causes the ammonia buffer solution inside the tank to quickly fill the U-shaped drain pipe 27. Utilizing the siphon effect, the saturated ammonia buffer solution is quickly and automatically discharged. The discharged solution can be placed in a container for collection and recovery. Once the solution level drops to its lowest point, the plug pipe 28 and the hollow float 29 descend under gravity. The plug pipe 28 touches the bottom of the treatment tank 21. At this point, the inflow of water into the U-shaped drain pipe 27 decreases rapidly while the outflow remains unchanged. The pipe cannot be completely filled with solution, and the siphon effect is automatically and forcibly stopped. Afterward, only slow drainage continues, allowing the ammonia buffer solution to accumulate again in the treatment tank 21. This ensures the continuous operation of the preliminary desulfurization treatment, achieves stable control of the desulfurization solution concentration, and ensures continuous and stable operation of the pretreatment stage.

[0053] Example 3: Please refer to Figures 1-9 As shown, the present invention also proposes a method for using a steam-hot water co-generation RTO pulse temperature control energy-saving and carbon-reducing device, including the following steps:

[0054] Step 1: The ammonia buffer solution is injected into the distribution sleeve 25 through the inlet pipe 26, and then sprayed out from multiple spray heads over a wide area, and collected at the bottom of the treatment tank 21, submerging the gas distribution plate 23. The waste gas is injected into the gas distribution plate 23 through the inlet pipe 22, and then discharged from the gas distribution plate 23 into the ammonia buffer solution in the treatment tank 21 for preliminary desulfurization treatment. The preliminary desulfurization waste gas rises and is discharged in the ammonia buffer solution, and enters the inlet connection pipe 35. During this process, it first undergoes secondary desulfurization treatment through the atomized solution sprayed from multiple spray heads over a wide area, and the gas in the bubbles formed inside the solution is desulfurized. Then, it passes through the wire mesh demister 24 to remove the entrained droplets in the waste gas.

[0055] Step 2: As the spray desulfurization proceeds, the water level of the ammonia buffer solution inside the treatment tank 21 continuously rises and, after exceeding the top of the U-shaped drain pipe 27, comes into contact with the hollow float 29. This pushes the hollow float 29, carrying the water-blocking pipe 28 upwards. The bottom of the water-blocking pipe 28 separates from the bottom of the treatment tank 21, automatically opening the U-shaped drain pipe 27. Combined with the continuous inflow of waste gas into the treatment tank 21, the ammonia buffer solution in the treatment tank 21 quickly fills the U-shaped drain pipe 27. The siphon effect is used to quickly complete the automatic discharge of the saturated ammonia buffer solution, which is then collected in a container. After the solution level drops to its lowest point, it falls due to the gravity of the water-blocking pipe 28 and the hollow float 29. The water-blocking pipe 28 touches the bottom of the treatment tank 21, rapidly reducing the inflow of water into the U-shaped drain pipe 27 while maintaining the outflow. The U-shaped drain pipe 27 is not completely filled with solution, automatically and forcibly stopping the siphon effect. Then, the solution continues to be discharged slowly, allowing the ammonia buffer solution to accumulate again to complete the initial desulfurization treatment of the waste gas.

[0056] Step 3: The three sets of plungers 32 inside the bottom box 31 are started by the corresponding servo motors and rotated in conjunction with the meshing bevel gears and bevel gear rings. The three sets of plungers 32 are respectively labeled as plunger A 32, plunger B 32 and plunger C 32. This causes the L-shaped air inlet chamber 315 on plunger A 32 to communicate with the upper slot 312, the L-shaped air outlet chamber 316 on plunger B 32 to communicate with the upper slot 312, and the L-shaped air inlet chamber 315 and L-shaped air outlet chamber 316 on plunger C 32 to not communicate with the upper slot 312. The desulfurization waste gas enters the corresponding bottom box 31 through plunger A 32, L-shaped air inlet chamber 315 and upper slot 312, and then enters the combustion chamber for combustion treatment through the preheated adsorption layer 12 and the heat storage ceramic 11. When the waste gas passes through the adsorption layer 12, it undergoes efficient denitrification treatment through the internally filled and preheated SCR catalyst.

[0057] Combustion flue gas is discharged from the corresponding bottom box 31, upper slot 312, B plunger 32, L-shaped exhaust chamber 316 into exhaust connection pipe 39, and then enters T-shaped pipe 36. The high-temperature flue gas first stores heat in the heat storage ceramic 11 on the exhaust path, and then splits into two parts and enters the spiral tubes inside steam generator 37 and hot water tank 38 respectively. The waste heat of flue gas is used to generate steam, hot water and other products for production and daily life.

[0058] Step 4: During the flue gas exhaust process, the heating temperature of the heat storage ceramic 11 is detected at multiple points by multiple temperature sensors inside the heat storage ceramic 11, resulting in multiple preheating temperature values. These preheating temperature values ​​are then transmitted to the controller. The controller integrates the multiple preheating temperature values, takes the average value, and compares it with the preset temperature value. If the average value is greater than the preset temperature value, the controller controls the solenoid control valve 310 to increase its opening amount, thereby improving the efficiency of high-temperature flue gas exhaust and increasing the output of steam and hot water. If the average value is less than the preset temperature value, the controller controls the solenoid control valve 310 to decrease its opening amount, ensuring the preheating effect for the next flue gas entering the system. If the average value is equal to the preset temperature value, no further processing is performed.

[0059] Temperature sensor 2 detects the temperature of the produced hot water, obtains the waste heat temperature value, and transmits the waste heat temperature value to the controller. If the waste heat temperature value is greater than the preset water temperature value, the controller controls solenoid control valve 2 311 to reduce the opening amount. If the waste heat temperature value is less than the preset water temperature value, the controller controls solenoid control valve 2 311 to increase the opening amount to ensure that the hot water temperature is constant and increase the steam output. If the waste heat temperature value is equal to the preset water temperature value, no processing is performed.

[0060] Step 5: After the exhaust gas has been completely combusted, the vent pipe 14 injects clean gas into the heat storage chamber and the combustion chamber to discharge the residual exhaust gas. Then, the corresponding A plunger 32, B plunger 32 and C plunger 32 are controlled to rotate. During the rotation, the L-shaped air inlet chamber 315 (or L-shaped air outlet chamber 316) on the plunger 32 is completely separated from the upper slot 312. The L-shaped air outlet chamber 316 (or L-shaped air inlet chamber 315) is then connected to the upper slot 312 to prevent a small amount of exhaust gas to be combusted from being discharged through the L-shaped air outlet chamber 316. Then, the air inlet and outlet of the corresponding bottom box 31 are switched to preheat and combust the exhaust gas.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A steam-based combined heat and power RTO pulsating temperature control energy-saving and carbon-reducing device, comprising a three-chamber heat storage combustion furnace (1) composed of a combustion chamber and a heat storage chamber, characterized in that, The three-chamber regenerative combustion furnace (1) is provided with a spray assembly (2) on one side and multiple inlet and outlet gas switching assemblies (3) at the bottom. The inlet and outlet gas switching assembly (3) includes a bottom box (31) fixedly installed at the bottom of the corresponding regenerative chamber. A plunger (32) for switching inlet and outlet gas and preventing them from mixing is rotatably installed inside the bottom box (31). The spray assembly (2) includes a treatment tank (21). An inlet pipe (22) is installed on the treatment tank (21), and a gas distribution plate (23) is installed at the end of the inlet pipe (22). Multiple spray heads are provided on the inlet pipe (22).

2. The steam-based cogeneration RTO pulse temperature control energy-saving carbon reduction device according to claim 1, characterized in that, The heat storage chamber is equipped with a heat storage ceramic (11) and an adsorption layer (12) located below the heat storage ceramic (11) and filled with an SCR catalyst. Multiple temperature sensors are installed at different heights inside the heat storage ceramic (11).

3. The steam-based cogeneration RTO pulse temperature control energy-saving carbon reduction device according to claim 1, characterized in that, The bottom box (31) is fixedly connected to the two sides by an inlet pipe (33) and an outlet pipe (34). The top of the processing tank (21) is fixedly connected to the multiple inlet pipes (33) by an air inlet connection pipe (35). A T-shaped pipe (36) is provided on one side of the three-chamber regenerative combustion furnace (1), and a steam generator (37) and a hot water tank (38) are fixedly connected to the T-shaped pipe (36). An outlet connection pipe (39) is fixedly connected to the T-shaped pipe (36) and the multiple outlet pipes (34).

4. The steam-based cogeneration RTO pulse temperature control energy-saving carbon reduction device according to claim 3, characterized in that, The bottom of the three-chamber regenerative combustion furnace (1) is provided with a purge air pipe (13), and a one-way valve is fixedly installed between the purge air pipe (13) and the corresponding inlet pipe (33). The bottom of the bottom box (31) is fixedly connected with a drain pipe (14), and a one-way valve is provided on the drain pipe (14).

5. The energy-saving and carbon-reducing device based on steam-hot water co-production RTO pulse temperature control according to claim 3, characterized in that, The T-shaped pipe (36) is equipped with an electromagnetic control valve 1 (310) for controlling the exhaust flow of the exhaust pipe (39) and an electromagnetic control valve 2 (311) for controlling the intake flow of the hot water tank (38). The outlet pipe of the hot water tank (38) is equipped with a temperature sensor 2.

6. The energy-saving and carbon-reducing device based on steam-hot water co-production RTO with pulsed temperature control according to claim 4, characterized in that, The bottom box (31) has an upper slot (312) and a lower slot (313) on the top and bottom sides respectively, which are connected to the heat storage chamber and the drain pipe (14). The plunger (32) has an annular groove (314) on its annular outer wall. The plunger (32) has an L-shaped air inlet chamber (315) and an L-shaped air outlet chamber (316) on both ends of the plunger (32) and on both sides of the annular groove (314) respectively. The other ends of the L-shaped air inlet chamber (315) and the L-shaped air outlet chamber (316) respectively penetrate through both sides of the annular outer wall of the plunger (32).

7. The energy-saving and carbon-reducing device based on steam-hot water co-production RTO with pulsed temperature control according to claim 3, characterized in that, A bevel gear ring is fixedly installed on one end face of the plunger (32), a servo motor is installed on the inlet pipe (33), and a bevel gear that meshes with the bevel gear ring is installed on the output shaft of the servo motor.

8. The energy-saving and carbon-reducing device based on steam-hot water co-production RTO with pulsed temperature control according to claim 1, characterized in that, A wire mesh demister (24) is fixedly installed inside the treatment tank (21). A diversion sleeve (25) is installed on the vertical section of the air inlet pipe (22). Multiple spray heads are installed on the annular outer wall of the diversion sleeve (25). An inlet pipe (26) that penetrates to the outside of the treatment tank (21) is fixedly connected to the diversion sleeve (25).

9. The energy-saving and carbon-reducing device based on steam-hot water co-production RTO pulse temperature control according to claim 1, characterized in that, A U-shaped drain pipe (27) is fixedly connected to the bottom of one side of the treatment tank (21). A water-blocking pipe (28) is slidably connected to the end of the U-shaped drain pipe (27) inside the treatment tank (21). A hollow float (29) is fixedly connected to the water-blocking pipe (28) by a support rod.

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