Folding type low-resistance large-flux denitration catalytic device
By designing a gradually expanding air inlet, a forked diversion pipe, and a honeycomb denitrification agent, combined with a cooling and regulating mechanism, the problems of insufficient flue gas flow and increased resistance were solved, achieving efficient denitrification and desulfurization of exhaust gas.
Patent Information
- Application Number
- CN202520910628.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-05-09
AI Technical Summary
Existing waste gas denitrification equipment suffers from problems such as small flue gas flow surface area, insufficient reaction, and excessively high local flow velocity leading to a surge in resistance.
The device employs a folded, low-resistance, high-throughput denitrification catalytic converter, featuring a gradually expanding inlet and a forked diversion pipe. It utilizes honeycomb-shaped denitrification and desulfurization agents, combined with cooling and regulating mechanisms, to ensure uniform distribution of flue gas and efficient reaction.
It improves the flow efficiency of flue gas, reduces resistance, enhances the catalytic reaction interface, prolongs the gas-solid contact time, improves denitrification and desulfurization efficiency, reduces system pressure drop, and extends equipment life.
Smart Images
Figure CN223915105U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas denitration equipment technical field, concretely is folding type low resistance big flux denitration catalytic device. BACKGROUND
[0002] The waste gas denitration equipment is a kind of equipment for reducing the emission of nitrogen oxides in industrial waste gas.Nitrogen oxides are harmful gases, which can cause harm to the environment and human health, so it needs to be handled.
[0003] The working principle of waste gas denitration equipment is to convert nitrogen oxides in waste gas into harmless nitrogen and water by chemical reaction.The commonly used denitration methods include selective catalytic reduction method and selective non-catalytic reduction method.
[0004] In the design process of the utility model, it is found that the prior art has the following problems:
[0005] The waste gas denitration equipment in the prior art adopts a mechanism provided with a denitration agent arranged in a horizontal linear arrangement.When flue gas passes through, its flow surface area is small, the reaction is not sufficient, and when flue gas enters, the gas is prone to cause resistance to surge due to local high flow rate. INVENTION CONTENTS
[0006] The utility model discloses a folding type low resistance big flux denitration catalytic device to solve the problem that the waste gas denitration equipment in the prior art adopts a mechanism provided with a denitration agent arranged in a horizontal linear arrangement, when flue gas passes through, its flow surface area is small, the reaction is not sufficient, and when flue gas enters, the gas is prone to cause resistance to surge due to local high flow rate.
[0007] To achieve the above object, the utility model provides the following technical scheme: folding type low resistance big flux denitration catalytic device, including air inlet, the one end of air inlet is inserted in the one end of connecting board A, the other end of connecting board A is equipped with the air inlet end of denitration mechanism, the air outlet end of denitration mechanism is screwed with connecting hose A, the other end of connecting hose A is screwed with desulfurization mechanism, the air outlet end of connecting board B is inserted in the air outlet end of connecting board B, the air outlet end of connecting board B is inserted in the air outlet, the side of the air inlet of connecting board A away from the air inlet is inserted with cooling mechanism, and the left and right sides of denitration mechanism and desulfurization mechanism are equipped with adjusting mechanism.
[0008] Further preferably, the air outlet end of the air inlet is inserted with a fork-shaped shunt pipe, the air outlet end of the air outlet is inserted with a fork-shaped manifold, the middle section of the fork-shaped manifold is provided with an air suction pump, the pipeline diameter of the air inlet gradually increases, and the pipeline diameter of the air outlet gradually decreases.
[0009] More preferably, both the connecting plate A and the connecting plate B are provided with three channels. The three channels provided in the connecting plate A correspond to the interface end positions of the denitrification mechanism and are the same in number. The three channels provided in the connecting plate B correspond to the interface end positions of the desulfurization mechanism and are the same in number.
[0010] More preferably, the denitrification mechanism and the desulfurization mechanism are respectively provided with a denitrification agent and a desulfurization agent, and both the denitrification agent and the desulfurization agent are designed with a honeycomb structure.
[0011] More preferably, the cooling mechanism includes a water pump, a water pump pipe, a water supply pipe, a water tank, and a return pipe. One end of the water pump pipe is inserted into one side of the water tank, and the other end of the water pump pipe is inserted into the water pump pipe. The other end of the water supply pipe pipe is inserted into the side of the connecting plate A away from the air inlet. The bottom of the connecting plate A is connected to the return pipe pipe, and the other end of the return pipe pipe is inserted into the bottom of the water tank.
[0012] More preferably, the connection ends of the denitrification mechanism and the desulfurization mechanism are both threadedly connected to a connecting hose B.
[0013] More preferably, the adjustment mechanism includes an electric telescopic rod and two pairs of connecting blocks, the two pairs of connecting blocks being respectively located at the beginning and end of the denitrification mechanism and the desulfurization mechanism, and the electric telescopic rod being screwed between the two pairs of connecting blocks.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] The gradually expanding design of the inlet avoids the surge in resistance caused by excessively high local flow velocity of flue gas, while the forked diverter pipe ensures balanced flow and supports high-throughput processing. The tapered pipe at the outlet increases the outlet velocity of the flue gas, reduces eddies and back pressure. Both the denitrification and desulfurization agents are designed with a honeycomb structure, which provides a high specific surface area catalytic reaction interface, prolongs the gas-solid contact time, and improves denitrification and desulfurization efficiency. The honeycomb channel design also optimizes the airflow path, further reducing pressure drop. The adjustment mechanism can adjust the angle between the mechanisms, enabling rapid unfolding and folding of the denitrification and desulfurization mechanisms, thereby ensuring that the flue gas passes evenly through each mechanism and improving denitrification and desulfurization efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a frontal cross-sectional view of the present invention.
[0018] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the air inlet structure of this utility model.
[0020] In the diagram: 1. Air inlet; 101. Forked splitter pipe; 2. Connecting plate A; 3. Denitrification mechanism; 4. Connecting hose A; 5. Desulfurization mechanism; 6. Connecting plate B; 7. Air outlet; 701. Forked manifold; 702. Air pump; 8. Cooling mechanism; 801. Water pump; 802. Water pumping pipe; 803. Water supply pipe; 804. Water tank; 805. Return water pipe; 9. Adjustment mechanism; 901. Electric telescopic rod; 902. Connecting block. Detailed Implementation
[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a foldable low-resistance high-flux denitrification catalytic device, including an air inlet 1, one end of which is inserted into one end of a connecting plate A2, the other end of which is located at the air inlet of a denitrification mechanism 3, a connecting hose A4 is screwed to the air outlet of the denitrification mechanism 3, a desulfurization mechanism 5 is screwed to the other end of the connecting hose A4, a connecting plate B6 is inserted to the air outlet of the desulfurization mechanism 5, an air outlet 7 is inserted to the air outlet of the connecting plate B6, a cooling mechanism 8 is inserted to the side of the connecting plate A2 away from the air inlet 1, and adjustment mechanisms 9 are provided on both the left and right sides of the denitrification mechanism 3 and the desulfurization mechanism 5.
[0023] In this embodiment, as Figure 1 and Figure 4 As shown, a forked splitter pipe 101 is inserted into the outlet end of the air inlet 1, and a forked manifold pipe 701 is inserted into the outlet end of the air outlet 7. An air pump 702 is installed in the middle section of the forked manifold pipe 701. The pipe diameter of the air inlet 1 gradually increases, and the pipe diameter of the air outlet 7 gradually decreases.
[0024] In this embodiment, as Figure 1 and Figure 2 As shown, both connecting plate A2 and connecting plate B6 are divided into three channels. The three channels of connecting plate A2 correspond to the interface end positions of denitrification mechanism 3 and are the same in number. The three channels of connecting plate B6 correspond to the interface end positions of desulfurization mechanism 5 and are the same in number.
[0025] In this embodiment, as Figure 2 and Figure 3As shown, the denitrification unit 3 and the desulfurization unit 5 are respectively equipped with a denitrifying agent and a desulfurizing agent, both of which are designed with a honeycomb structure.
[0026] In this embodiment, as Figure 1 and Figure 4 As shown, the cooling mechanism 8 includes a water pump 801, one end of a water pipe 802 is inserted into one side of a water tank 804, the other end of the water pipe 802 is inserted into the water pump 801, the other end of the water pump 801 is inserted into a water supply pipe 803, the other end of the water supply pipe 803 is inserted into the side of the air inlet 1 away from the connecting plate A2, and a return water pipe 805 is inserted into the bottom of the connecting plate A2, the other end of the return water pipe 805 is inserted into the bottom of the water tank 804.
[0027] In this embodiment, as Figure 3 As shown, both the denitrification unit 3 and the desulfurization unit 5 are connected to a connecting hose B via threads.
[0028] In this embodiment, as Figure 1 and Figure 3 As shown, the adjustment mechanism 9 includes an electric telescopic rod 901 and two pairs of connecting blocks 902. The two pairs of connecting blocks 902 are respectively located at the beginning and end of the denitrification mechanism 3 and the desulfurization mechanism 5. The electric telescopic rod 901 is screwed between the two pairs of connecting blocks 902.
[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the working process of this folded, low-resistance, high-flux denitrification catalytic converter is as follows:
[0030] First, when installing the denitrification mechanism 3 and the desulfurization mechanism 5, the operator can activate the electric telescopic rod 901 via the external controller, causing its drive end to extend and retract, which in turn moves the two connecting blocks 902 screwed to it closer or further apart. This causes multiple denitrification mechanisms 3 and 5 to expand or contract to a suitable working angle. Then, the operator connects the external pipe to the air inlet 1, and then introduces the flue gas from the external pipe into the air inlet 1. The flue gas passes through the gradually expanding pipe of the air inlet 1 to reduce its flow velocity, thereby reducing inlet turbulence. At the same time, the flue gas flows through the forked diverter pipe 101 and is evenly distributed to multiple branch channels, thus entering the corresponding connecting plates A2. At this time, the water pump can be started. Cooling water is drawn from water tank 804 and transported to water supply pipe 803 through water pumping pipe 802. The cooling water then enters the cooling channel of connecting plate A2 through water supply pipe 803, where it comes into contact with the flue gas entering the connecting plate A2 and absorbs the heat generated by the flue gas. The cooled water then flows back to water tank 804 through return pipe 805, completing the circulation. The cooled flue gas then flows through its respective channels and finally flows into the three air inlets of the corresponding denitrification mechanism 3 through different channels of connecting plate A2, and is evenly distributed into each denitrification mechanism 3. During this process, the flue gas passes through the honeycomb denitrification agent inside the mechanism. At this time, the flue gas flows through the channels of the honeycomb denitrification agent, making full contact with it and thus undergoing a denitrification reaction. The denitrified flue gas then enters the connecting hose A4, which is screwed to it, through the outlet of the denitrification mechanism 3, and then enters the desulfurization mechanism 5 through the connecting hose A4. After entering the desulfurization mechanism 5, the flue gas passes through the honeycomb desulfurization agent inside and flows through the channels of the honeycomb desulfurization agent, making full contact with the desulfurization agent and undergoing a desulfurization reaction. The desulfurized flue gas then enters the connecting plate B6, which is connected to it, through the outlet of the desulfurization mechanism 5. After completing the desulfurization, the flue gas continues to be collected through the forked manifold 701 and enters the tapered pipe of the outlet 7. During this period, the suction pump 702 is started to provide negative pressure suction, further accelerating the flue gas flow. The flue gas is discharged outwards. The gradually expanding design of the inlet 1 ensures that the flue gas enters the denitrification unit 3 smoothly, thus avoiding a surge in resistance caused by excessively high local flow velocities. The forked diverter 101, through its optimized bifurcation angle and cross-section, improves denitrification efficiency, ensuring balanced flow and supporting high-throughput processing. The tapered outlet 7 increases the outlet velocity of the flue gas, thereby reducing eddies and back pressure. The suction pump 702 further reduces the overall system resistance, preventing flue gas stagnation. The even distribution of flue gas to multiple components of the denitrification unit 3 via the connecting plate A2 avoids overload of any single component, further improving denitrification efficiency. It also balances the inlet flow of each denitrification unit 3, preventing excessively high local resistance, reducing the overall system pressure drop, and extending the lifespan of the denitrifying agent.After desulfurization, the flue gas flows out from the outlet of desulfurization unit 5. The three-channel design of the connecting plate B6 reduces system complexity, balances the outlet pressure of each desulfurization unit 5, and avoids backflow or eddies, thereby improving system stability and reducing energy loss. The honeycomb structure of both the denitrification agent and the desulfurizing agent provides a high specific surface area catalytic reaction interface, prolongs the gas-solid contact time, and thus improves denitrification and desulfurization efficiency. The honeycomb channel design also optimizes the airflow path, further reducing pressure drop. Meanwhile, the cooling unit 8 absorbs heat from the flue gas, thereby reducing the flue gas temperature and preventing high temperature damage to subsequent equipment. The cooling unit 8 also prevents high-temperature flue gas from damaging the denitrification agent, desulfurizing agent, and mixed pipe materials, further improving denitrification and desulfurization efficiency. The connecting hose B is used to connect adjacent units of denitrification unit 3 and desulfurization unit 5, completing the denitrification reaction sequentially. Flue gas enters the desulfurization unit 5 through connecting hose A4, and then is transmitted between different desulfurization units 5 through connecting hose B, enabling the desulfurization reaction to be completed sequentially. The design of connecting hose B accommodates positional deviations between units, allowing for certain displacement and angular changes, reducing installation difficulty, and avoiding stress concentration or leakage caused by rigid connections. Furthermore, connecting hose B connects multiple units in series, supporting system expansion, flexibly adapting to different treatment needs, and increasing system throughput. Finally, the adjustment mechanism 9 can adjust the angle between units, enabling rapid unfolding and folding of the denitrification unit 3 and desulfurization unit 5, ensuring uniform flue gas flow through each unit, improving denitrification and desulfurization efficiency, saving space, and facilitating transportation and storage. The electric telescopic rod 901 precisely controls the extension and retraction process, ensuring the specific degree of the folding angle, improving adjustment accuracy and efficiency, and further increasing system throughput.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A folded, low-resistance, high-flux denitrification catalytic converter, comprising an air inlet (1), characterized in that: One end of the air inlet (1) is inserted into one end of the connecting plate A (2), and the other end of the connecting plate A (2) is located at the air inlet of the denitrification mechanism (3). The air outlet of the denitrification mechanism (3) is screwed with a connecting hose A (4), and the other end of the connecting hose A (4) is screwed with a desulfurization mechanism (5). The air outlet of the desulfurization mechanism (5) is inserted with a connecting plate B (6), and the air outlet of the connecting plate B (6) is inserted with an air outlet (7). A cooling mechanism (8) is inserted on the side of the connecting plate A (2) away from the air inlet (1). Adjustment mechanisms (9) are provided on both the left and right sides of the denitrification mechanism (3) and the desulfurization mechanism (5).
2. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The air inlet (1) is connected to a forked splitter pipe (101) at the air outlet end, and the air outlet (7) is connected to a forked collector pipe (701) at the air outlet end. An air pump (702) is installed in the middle section of the forked collector pipe (701). The pipe diameter of the air inlet (1) gradually increases, and the pipe diameter of the air outlet (7) gradually decreases.
3. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The connecting plate A (2) and the connecting plate B (6) are each divided into three channels. The three channels of the connecting hose A (4) correspond to the interface end position of the denitrification mechanism (3) and have the same number. The three channels of the connecting plate A (2) correspond to the interface end position of the desulfurization mechanism (5) and have the same number.
4. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The denitrification mechanism (3) and the desulfurization mechanism (5) are respectively equipped with a denitrifying agent and a desulfurizing agent, and both the denitrifying agent and the desulfurizing agent are designed with a honeycomb structure.
5. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The cooling mechanism (8) includes a water pump (801), a water pump pipe (802), a water supply pipe (803), a water tank (804), and a return water pipe (805). One end of the water pump pipe (802) is inserted into one side of the water tank (804), and the other end of the water pump pipe (802) is inserted into the water pump (801). The other end of the water pump pipe (801) is inserted into the water supply pipe (803), and the other end of the water supply pipe (803) is inserted into one side of the air inlet (1) away from the connecting plate A (2). The bottom of the connecting plate A (2) is inserted into the return water pipe (805), and the other end of the return water pipe (805) is inserted into the bottom of the water tank (804).
6. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The connection ends of the denitrification mechanism (3) and the desulfurization mechanism (5) are both threaded with connecting hoses B.
7. The folded low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The adjustment mechanism (9) includes an electric telescopic rod (901) and two pairs of connecting blocks (902). The two pairs of connecting blocks (902) are respectively located at the beginning and end of the denitrification mechanism (3) and the desulfurization mechanism (5). The electric telescopic rod (901) is screwed between the two pairs of connecting blocks (902).