A deodorization system for an incineration room of a waste incineration power plant

Abstract

The utility model relates to garbage incineration technical field, specifically is a kind of based on garbage incineration power station's incineration room deodorization system, comprising: deodorization mechanism, mixed intake mechanism and switching storage mechanism, and the deodorization mechanism is connected in the air intake side of mixed intake mechanism;The switching storage mechanism includes three-way solenoid valve of fixed connection and communication in deodorization mechanism air outlet end, and the other two openings of three-way solenoid valve are respectively fixed connection and communication gas storage tank and three-way pipe;Switching storage mechanism can collect and store the odor that deodorization mechanism transports when being opened, this can quickly suck the odor that percolate liquid collecting hopper discharges when incinerator non-operating state, and more odor can be stored by the way of pressurization by gas pressurizing pump, to reduce the odor pollution surrounding environment of percolate liquid collecting hopper leakage, simultaneously this can also reduce the dependency of deodorization system to incinerator, to reduce the maintenance burden of maintenance personnel further.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a deodorization system for the incineration chamber of a waste incineration power plant. Background Technology

[0002] A waste-to-energy incineration plant is a facility that uses the heat generated from the incineration of municipal solid waste to generate electricity. Currently, before maintenance, the leachate collection hopper in the waste incinerator needs to have its odor discharged through the deodorization system in the incineration chamber to reduce the impact on the maintenance environment.

[0003] Currently, a Chinese patent discloses an odor control system for the incineration chamber of a municipal solid waste incineration power plant (authorization announcement number CN222026951U). The system arranges the air intake around the pusher and uses the negative pressure of the furnace wall cooling fan to extract the air around the odor leakage points such as the pusher, thus modifying the working environment of the incineration chamber. When the leachate collection hopper needs maintenance, the first damper of the air intake near the leachate collection hopper is opened to extract the odor overflowing from the leachate collection system. When the leachate collection hopper is operating normally, the first damper can be closed to ensure the air intake volume of the pusher and other locations. The air containing odor finally enters the primary air fan through the furnace wall cooling blower and the furnace wall cooling induced draft fan, and enters the furnace for combustion together with the primary air.

[0004] As can be seen from the above reference cases, the device sends the leaked odor into the furnace for combustion treatment. Although this can effectively treat the odor, it can only be operated during waste incineration. Furthermore, the area where the leachate collection hopper is located must be physically isolated from the incinerator operating area or be in a non-high temperature / high pressure environment, and maintenance work must not affect the normal operation of the incineration system. Theoretically, maintenance can only be carried out during incineration, which increases the limitations on the maintenance of the leachate collection hopper.

[0005] Therefore, an odor control system for the incineration chamber of a waste incineration power plant is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an odor control system for the incineration chamber of a waste incineration power plant to solve the above-mentioned problems. This system improves upon the existing incineration chamber odor control system, which requires operation in conjunction with the incinerator and increases maintenance restrictions.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: an odor control system for the incineration chamber of a waste incineration power plant, comprising:

[0008] The system includes a deodorization mechanism, a mixing and intake mechanism, and a switching and storage mechanism, wherein the deodorization mechanism is connected to the intake side of the mixing and intake mechanism.

[0009] Preferably, the switching storage mechanism includes a three-way solenoid valve fixedly connected to and connected to the air outlet of the deodorizing mechanism. The other two openings of the three-way solenoid valve are fixedly connected to and connected to an air storage tank and a three-way pipe, respectively. One opening of the three-way pipe is connected to the air inlet of the mixing air intake mechanism. The air outlet of the air storage tank is fixedly connected to and connected to an electric valve connected to the three-way pipe.

[0010] Preferably, the switching storage mechanism further includes a pressure-relieving component, which includes a connecting cylinder fixedly connected and communicating between the gas storage tank and the three-way pipe. A hollow frame is fixedly connected inside the connecting cylinder, and a connecting rod is slidably connected to the inner side of the hollow frame. A baffle is fixedly connected to one end of the connecting rod facing the gas storage tank, and a spring is sleeved on the surface of the connecting rod. The two ends of the spring are respectively connected to the hollow frame and the baffle.

[0011] Preferably, the hollow frame has a storage cavity at one end facing the gas storage tank, and one end of the spring extends into the interior of the storage cavity.

[0012] Preferably, a limiting groove is provided at the end of the hollow frame facing away from the gas storage tank, and an anti-detachment block is slidably connected inside the limiting groove and fixedly connected to the connecting rod. The diameter of the anti-detachment block is larger than the inner diameter of the connection between the hollow frame and the connecting rod.

[0013] Preferably, the spring is always in a compressed state, and the diameter of the spring is smaller than the diameter of the baffle.

[0014] Preferably, the three-way solenoid valve is fixedly connected to the gas storage tank and is connected to a gas pressurization pump.

[0015] Preferably, the three-way pipe is fixedly connected to the electric valve and is connected to a one-way valve, wherein the blocking direction of the one-way valve is the same as the direction from the three-way pipe to the electric valve.

[0016] The beneficial effects of this utility model are:

[0017] 1. When the switching storage mechanism is turned on, it can collect and store the odorous gas delivered by the deodorization mechanism. This allows for the rapid extraction of odorous gas discharged from the leachate collection hopper when the incinerator is not in operation. Furthermore, by pressurizing the gas through a gas pressurization pump, more odorous gas can be stored, thereby reducing the pollution of the surrounding environment by odorous gas leaking from the leachate collection hopper. At the same time, this also reduces the dependence of the deodorization system on the incinerator, thereby reducing the maintenance burden on maintenance personnel.

[0018] 2. When the high-pressure odorous gas enters the interior of the connecting cylinder through the gas storage tank, it is blocked by the baffle. The high-pressure odorous gas impacts the baffle, which acts as a physical barrier. By changing the airflow path or cross-sectional area, the baffle can directly increase the resistance to gas flow. At the same time, as the baffle moves towards the hollow frame, it actively compresses the spring. The compression resistance of the spring will offset part of the gas pressure, thereby reducing the kinetic energy when the gas is discharged. This can prevent a large amount of high-pressure odorous gas from being transported into the interior of the incinerator, thereby reducing the impact on the combustion temperature and ensuring the combustion efficiency of the incinerator. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the switching storage mechanism in this utility model;

[0020] Figure 2 This is a system flowchart of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the pressure-relieving component in this utility model;

[0022] Figure 4 This is an exploded view of the pressure-relieving component in this utility model.

[0023] In the diagram: 100, deodorization mechanism; 200, mixing and intake mechanism; 300, switching and storage mechanism; 310, three-way solenoid valve; 320, gas tank; 330, three-way pipe; 340, electric valve; 350, pressure relief component; 351, connecting cylinder; 352, hollow frame; 353, connecting rod; 354, baffle; 355, spring; 356, storage cavity; 357, limiting groove; 358, anti-detachment block; 360, gas pressurization pump; 370, one-way valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figure 1-4 As shown, an odor control system for the incineration chamber of a waste incineration power plant includes:

[0026] The system includes a deodorization mechanism 100, a mixing air intake mechanism 200, and a switching and storage mechanism 300. The deodorization mechanism 100 is connected to the air intake side of the mixing air intake mechanism 200.

[0027] The deodorization mechanism 100 includes a first fan fixedly connected to and connected to the three-way solenoid valve 310 and facing away from the switching storage mechanism 300. The air inlet end of the first fan is fixedly connected to and connected to a first three-way air guide pipe. The two openings of the first three-way air guide pipe facing away from the first fan are fixedly connected to and connected to an electric gate. The air inlet end of the electric gate is fixedly connected to and connected to a gas diversion pipe. The opening of the gas diversion pipe facing away from the electric gate is fixedly connected to and connected to an air guide hood arranged in a ring array. One set of air guide hoods is arranged in a ring array around the pusher, and the other set of air guide hoods is arranged in a ring array around the leachate collection hopper.

[0028] The mixed air intake mechanism 200 includes a second three-way air guide pipe fixedly connected to and connected to a three-way pipe 330 facing away from the first blower. One end of the second three-way air guide pipe facing away from the three-way pipe 330 is fixedly connected to and connected to a third three-way air guide pipe. The two opposite openings of the second three-way air guide pipe and the third three-way air guide pipe are connected. The opening of the third three-way air guide pipe facing away from the three-way pipe 330 is fixedly connected to and connected to the second blower. The air outlet of the second blower is fixedly connected to and connected to a fourth three-way air guide pipe. The two ends of the fourth three-way air guide pipe facing away from the second blower are respectively fixedly connected to and connected to an air intake pipe and a third blower. The air outlet of the third blower is fixedly connected to and connected to a furnace air intake pipe connected to the air inlet of the incinerator.

[0029] When maintenance personnel need to inspect the leachate collection hopper while the incinerator is running, they need to manually control the three-way solenoid valve 310 to connect the first blower to the three-way pipe 330. Then, they need to manually control the opening of the electric gate near the leachate collection hopper. At the same time, they need to manually control the opening of the first, second, and third blowers. The first blower draws in the odorous gas leaking from the leachate collection hopper and the pusher through the first three-way air duct, the airflow pipe, and the air duct cover, and delivers it to the three-way pipe 330. The odorous gas enters the second blower through the three-way pipe 330, the second three-way air duct, and the third three-way air duct in sequence. The second blower draws the odorous gas into the fourth three-way air duct. At the same time, the third blower draws in outside air through the fourth three-way air duct and the air inlet pipe. At this time, the air and odorous gas mix in the fourth three-way air duct and are delivered by the third blower into the incinerator for incineration through the furnace air inlet pipe.

[0030] After the maintenance personnel finish their work, they only need to manually close the electric gate near the leachate collection hopper to ensure that the air guide hood near the pusher can properly extract odor.

[0031] like Figure 1As shown, the switching storage mechanism 300 includes a three-way solenoid valve 310 fixedly connected and communicating with the air outlet of the deodorizing mechanism 100. The other two openings of the three-way solenoid valve 310 are fixedly connected and communicating with an air storage tank 320 and a three-way pipe 330, respectively. One opening of the three-way pipe 330 communicates with the air inlet of the mixing air intake mechanism 200. The air outlet of the air storage tank 320 is fixedly connected and communicating with an electric valve 340 communicating with the three-way pipe 330. The three-way solenoid valve 310 and the air storage tank 320 are fixedly... A gas pressurizing pump 360 is connected and connected to the system. The gas pressurizing pump 360 can store more odorous gas by pressurizing it, thereby improving the removal rate of odorous gas around the leachate collection hopper. A one-way valve 370 is fixedly connected and connected between the three-way pipe 330 and the electric valve 340. The blocking direction of the one-way valve 370 is the same as the direction from the three-way pipe 330 to the electric valve 340. The one-way valve 370 can prevent odorous gas from rushing to the electric valve 340, thereby ensuring the flow resistance of the airflow inside the three-way pipe 330.

[0032] When workers need to inspect the leachate collection hopper while the incinerator is not in operation, they first manually control the three-way solenoid valve 310 to connect the first blower to the gas pressurization pump 360. Then, they manually control the opening of the electric gate near the leachate collection hopper. At the same time, they manually control the opening of the first blower and the gas pressurization pump 360. The first blower and the gas pressurization pump 360 simultaneously draw in the odorous gas around the leachate collection hopper through the first three-way gas duct and the gas duct cover. Then, the gas pressurization pump 360 delivers the odorous gas into the gas storage tank 320, and pressurizes it as the odorous gas increases to reduce the pollution of the surrounding environment by the odorous gas leaking from the leachate collection hopper, thereby meeting the needs of inspecting the leachate collection hopper while the incinerator is not in operation.

[0033] When it is necessary to discharge the odorous gas in the gas storage tank 320 into the incinerator which is in combustion, the staff only needs to manually control the opening of the electric valve 340. At this time, the gas storage tank 320 is connected to the three-way pipe 330. The high-pressure odorous gas inside the gas storage tank 320 is transported into the incinerator for incineration through the three-way pipe 330, the second three-way gas guide pipe, the third three-way gas guide pipe, the second fan, the fourth three-way gas guide pipe, the third fan and the furnace air inlet pipe.

[0034] like Figure 3 and Figure 4As shown, the switching storage mechanism 300 also includes a pressure-relieving component 350. The pressure-relieving component 350 includes a connecting cylinder 351 fixedly connected and communicating between the gas tank 320 and the three-way pipe 330. A perforated frame 352 is fixedly connected inside the connecting cylinder 351. A connecting rod 353 is slidably connected to the inner side of the perforated frame 352. A baffle 354 is fixedly connected to the end of the connecting rod 353 facing the gas tank 320. A spring 355 is sleeved on the surface of the connecting rod 353. The two ends of the spring 355 are respectively between the perforated frame 352 and the baffle 354. A storage cavity 356 is opened at the end of the perforated frame 352 facing the gas tank 320. One end of the spring 355 penetrates into the interior of the storage cavity 356. The storage cavity 356 can... Sufficient expansion and contraction space is reserved for spring 355 to prevent it from being damaged by excessive compression. A limiting groove 357 is provided at the end of the hollow frame 352 facing away from the gas storage tank 320. An anti-detachment block 358 is slidably connected inside the limiting groove 357 and fixedly connected to the connecting rod 353. The diameter of the anti-detachment block 358 is larger than the inner diameter of the connection between the hollow frame 352 and the connecting rod 353. This can prevent the connecting rod 353 and the baffle 354 from separating from the hollow frame 352, so as to ensure that the baffle 354 can play a normal blocking role. Spring 355 is always in a compressed state. The diameter of spring 355 is smaller than the diameter of baffle 354. This can increase the compression resistance of spring 355 to improve the blocking effect on high-pressure odor.

[0035] When the high-pressure odorous gas enters the interior of the connecting cylinder 351 through the gas storage tank 320, it is blocked by the baffle 354. The high-pressure odorous gas impacts the baffle 354, which acts as a physical barrier. By changing the airflow path or cross-sectional area, the baffle 354 can directly increase the resistance to gas flow. At the same time, when the baffle 354 moves towards the hollow frame 352, it actively compresses the spring 355. The compression resistance of the spring 355 will offset part of the gas pressure, thereby reducing the kinetic energy when the gas is discharged. This can prevent a large amount of high-pressure odorous gas from being transported into the interior of the incinerator, thereby reducing the impact on the combustion temperature and ensuring the combustion efficiency of the incinerator.

[0036] It should be noted that the first fan, electric gate, gas diversion pipe, second fan, third fan, three-way solenoid valve 310, gas storage tank 320, electric valve 340, gas pressurization pump 360, and one-way valve 370 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the first fan, electric gate, second fan, third fan, three-way solenoid valve 310, electric valve 340, and gas pressurization pump 360 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An odor control system for the incineration chamber of a waste-to-energy plant, characterized in that, include: A deodorizing mechanism (100) and a mixing air intake mechanism (200), wherein the deodorizing mechanism (100) is connected to the air intake side of the mixing air intake mechanism (200); A switching storage mechanism (300) includes a three-way solenoid valve (310) fixedly connected to and connected to the air outlet of the deodorizing mechanism (100). The other two openings of the three-way solenoid valve (310) are fixedly connected to and connected to an air tank (320) and a three-way pipe (330), respectively. One opening of the three-way pipe (330) is connected to the air inlet of the mixing air intake mechanism (200). The air outlet of the air tank (320) is fixedly connected to and connected to an electric valve (340) connected to the three-way pipe (330).

2. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 1, characterized in that: The switching storage mechanism (300) further includes a pressure relief component (350), which includes a connecting cylinder (351) fixedly connected and communicating between the gas storage tank (320) and the three-way pipe (330). A hollow frame (352) is fixedly connected inside the connecting cylinder (351), and a connecting rod (353) is slidably connected to the inner side of the hollow frame (352). A baffle (354) is fixedly connected to one end of the connecting rod (353) facing the gas storage tank (320). A spring (355) is sleeved on the surface of the connecting rod (353), and the two ends of the spring (355) are respectively between the hollow frame (352) and the baffle (354).

3. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 2, characterized in that: The hollow frame (352) has a storage cavity (356) at one end facing the gas storage tank (320), and one end of the spring (355) extends into the interior of the storage cavity (356).

4. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 2, characterized in that: The hollow frame (352) has a limiting groove (357) at one end facing away from the gas storage tank (320). The limiting groove (357) has an anti-detachment block (358) that is fixedly connected to the connecting rod (353) and is slidably connected inside. The diameter of the anti-detachment block (358) is larger than the inner diameter of the connection between the hollow frame (352) and the connecting rod (353).

5. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 4, characterized in that: The spring (355) is always in a compressed state, and the diameter of the spring (355) is smaller than the diameter of the baffle (354).

6. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 1, characterized in that: The three-way solenoid valve (310) is fixedly connected to the gas storage tank (320) and connected to a gas pressurization pump (360).

7. The deodorization system for the incineration chamber of a waste incineration power plant according to claim 1, characterized in that: The three-way pipe (330) is fixedly connected to the electric valve (340) and connected to a one-way valve (370). The blocking direction of the one-way valve (370) is the same as the direction from the three-way pipe (330) to the electric valve (340).

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