An ultra-long distance denitration reducing agent atomizing and spraying device
By employing structures such as connecting pipes, pneumatic interfaces, denitrification interfaces, insertion pipes, and mounting flanges in the ultra-long-distance denitrification reducing agent atomizing spray device, the problem of atomizing spray bar detachment was solved, thereby improving the stability of the device and the atomizing spray distance of the denitrification reducing agent.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGRUI ENG DESIGN INST CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-31
AI Technical Summary
The existing ultra-long distance denitrification reducing agent atomizing spray device is prone to the atomizing spray bar falling off during use, which leads to instability of the device.
A structure including a connecting pipe, a pneumatic interface, a denitrification interface, an insertion pipe, a mounting flange, a sealing ring, a positioning sleeve, a mounting sleeve, a pressure ring, and a rubber sleeve is designed. The insertion pipe can be quickly installed by the tight fit of the sealing ring and the rubber sleeve, and the denitrification reducing agent is sprayed out from the nozzle head at high speed by high-pressure gas.
It effectively prevents the atomizing spray bar from falling off, improves the stability of the device, and greatly increases the atomization spray distance of the denitrification reducing agent.
Smart Images
Figure CN224573913U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of boiler technology, and in particular relates to an ultra-long distance denitrification reducing agent atomizing injection device. Background Technology
[0002] The ultra-long distance denitrification reducing agent atomizing injection device is a key piece of equipment used in flue gas denitrification systems of large industrial boilers, power plant boilers or industrial kilns, which can achieve efficient atomization and uniform distribution of reducing agent over a long distance.
[0003] Existing ultra-long-distance denitrification reducing agent atomizing spray devices require a relatively long atomizing spray bar during operation. The reaction force generated by the atomization of the denitrification reducing agent can cause the atomizing spray bar to shift, making it prone to detachment. Therefore, we propose an ultra-long-distance denitrification reducing agent atomizing spray device. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned technical problems by providing an ultra-long-distance denitrification reducing agent atomizing spray device, thus avoiding the problem of the atomizing spray bar falling off.
[0005] In view of this, the present invention provides an ultra-long distance denitrification reducing agent atomizing injection device, including a connecting pipe, one end of which is fixedly connected to a pneumatic interface, and the outer wall of the connecting pipe is fixedly connected to a denitrification interface. The end of the connecting pipe away from the pneumatic interface is threadedly connected to an insertion pipe. An installation flange is sleeved on the outside of the insertion pipe. A sealing ring is provided at the connection between the installation flange and the insertion pipe. A positioning sleeve is welded to the outer wall of the installation flange. An installation sleeve is threadedly connected to the outer wall of the positioning sleeve. A pressure ring is fixedly connected to the inner wall of the installation sleeve. An installation rubber sleeve is fitted to the outer wall of the pressure ring. A nozzle seat is threadedly connected to one end of the insertion pipe, and a nozzle head is fixedly connected to one end of the nozzle seat.
[0006] Based on the above structure, the operator inserts the insertion tube into the boiler through the mounting flange. By setting a sealing ring, the insertion tube is sealed. Then, the operator rotates the mounting sleeve, which slides along the outer wall of the positioning sleeve through the thread. The movement of the mounting sleeve causes the pressure ring to fit tightly against the mounting rubber sleeve, which in turn causes the mounting rubber sleeve to fit tightly against the outer wall of the insertion tube, thus achieving a quick installation of the insertion tube.
[0007] Preferably, the connecting pipe is T-shaped. In this embodiment, by setting the connecting pipe in a T-shape, it is beneficial for the high-pressure gas to drive the denitrification reducing agent to be sprayed out of the nozzle head at high speed.
[0008] Preferably, the central axis of the connecting tube coincides with the central axis of the insertion tube. In this embodiment, the denitrification reducing agent is prevented from clogging inside the insertion tube.
[0009] Preferably, the cross-section of the mounting flange is "L" shaped. In this embodiment, by setting the mounting flange with an "L" shaped cross-section, it is beneficial to improve the stability of the mounting flange and the boiler installation.
[0010] Preferably, two sets of sealing rings are provided. In this embodiment, by providing two sets of sealing rings, the sealing operation of the insertion tube is achieved.
[0011] Preferably, the central axis of the pressure ring and the mounting rubber sleeve coincides, and the connection between the pressure ring and the mounting rubber sleeve is inclined. In this embodiment, the mounting sleeve rotates and slides along the outer wall of the positioning sleeve through the thread. The movement of the mounting sleeve causes the pressure ring to fit tightly with the mounting rubber sleeve, and then the pressure ring causes the mounting rubber sleeve to fit tightly with the outer wall of the insertion tube, thereby realizing the quick installation operation of the insertion tube.
[0012] Preferably, the inner wall of the nozzle seat is conical. In this embodiment, this facilitates the high-pressure gas to drive the denitrification reducing agent to be ejected from the nozzle head at high speed.
[0013] The beneficial effects of this utility model are:
[0014] 1. This ultra-long-distance denitrification reducing agent atomizing injection device, by setting up an installation rubber sleeve, allows the operator to insert the insertion tube into the boiler through the installation flange. By setting a sealing ring, the insertion tube is sealed. Then, the operator rotates the installation sleeve, which slides along the outer wall of the positioning sleeve through the thread. The movement of the installation sleeve causes the pressure ring to fit tightly against the installation rubber sleeve, and in turn, the pressure ring causes the installation rubber sleeve to fit tightly against the outer wall of the insertion tube, thus achieving a rapid installation operation of the insertion tube.
[0015] 2. This ultra-long-distance denitrification reducing agent atomizing spray device, through the setting of a connecting pipe, allows the operator to inject the denitrification reducing agent into the connecting pipe through the denitrification interface. At the same time, high-pressure gas is injected into the connecting pipe through the pneumatic interface. The high-pressure gas drives the denitrification reducing agent to be sprayed out of the nozzle head at high speed, which greatly increases the atomization spray distance of the denitrification reducing agent. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the insertion tube and mounting flange structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the positioning sleeve of this utility model;
[0019] Figure 4 This is a cross-sectional view of the nozzle seat of this utility model.
[0020] The markings in the diagram are as follows:
[0021] 1. Connecting pipe; 2. Pneumatic interface; 3. Denitrification interface; 4. Insertion pipe; 5. Mounting flange; 501. Sealing ring; 6. Positioning sleeve; 7. Mounting sleeve; 8. Pressure ring; 9. Mounting rubber sleeve; 10. Nozzle seat; 11. Nozzle head. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0024] This application discloses an ultra-long-distance denitrification reducing agent atomizing spray device, including a connecting pipe 1, a pneumatic interface 2 fixedly connected to one end of the connecting pipe 1, a denitrification interface 3 fixedly connected to the outer wall of the connecting pipe 1, an insertion pipe 4 threadedly connected to the end of the connecting pipe 1 away from the pneumatic interface 2, an installation flange 5 sleeved on the outside of the insertion pipe 4, a sealing ring 501 provided at the connection between the installation flange 5 and the insertion pipe 4, a positioning sleeve 6 welded to the outer wall of the installation flange 5, an installation sleeve 7 threadedly connected to the outer wall of the positioning sleeve 6, a pressure ring 8 fixedly connected to the inner wall of the installation sleeve 7, an installation rubber sleeve 9 fitted to the outer wall of the pressure ring 8, a nozzle seat 10 threadedly connected to one end of the insertion pipe 4, and a nozzle head 11 fixedly connected to one end of the nozzle seat 10.
[0025] Based on the above structure, the operator inserts the insertion tube 4 into the boiler through the mounting flange 5. By setting the sealing ring 501, the insertion tube 4 is sealed. Then, the operator rotates the mounting sleeve 7. The mounting sleeve 7 rotates and slides along the outer wall of the positioning sleeve 6 through the thread. The movement of the mounting sleeve 7 causes the pressure ring 8 to fit tightly against the mounting rubber sleeve 9. In turn, the pressure ring 8 causes the mounting rubber sleeve 9 to fit tightly against the outer wall of the insertion tube 4, thus realizing the quick installation of the insertion tube 4.
[0026] In one embodiment, the connecting pipe 1 is T-shaped.
[0027] In this embodiment, by setting a "T"-shaped connecting pipe 1, it is beneficial for high-pressure gas to drive the denitrification reducing agent to be sprayed out at high speed from the nozzle head 11.
[0028] In one embodiment, the central axis of the connecting tube 1 coincides with the central axis of the insertion tube 4.
[0029] In this embodiment, the denitrification reducing agent is prevented from clogging inside the insertion tube 4.
[0030] In one embodiment, the mounting flange 5 has an "L" shaped cross-section.
[0031] In this embodiment, by setting the mounting flange 5 with an "L" shaped cross-section, it is beneficial to improve the stability of the mounting flange 5 and the boiler installation.
[0032] In one embodiment, two sets of sealing rings 501 are provided.
[0033] In this embodiment, the insertion tube 4 is sealed by setting two sets of sealing rings 501.
[0034] In one embodiment, the central axes of the pressure ring 8 and the mounting rubber sleeve 9 coincide, and the connection between the pressure ring 8 and the mounting rubber sleeve 9 is inclined.
[0035] In this embodiment, the mounting sleeve 7 rotates and slides along the outer wall of the positioning sleeve 6 via the thread. The movement of the mounting sleeve 7 causes the pressure ring 8 to fit tightly against the mounting rubber sleeve 9. In turn, the pressure ring 8 causes the mounting rubber sleeve 9 to fit tightly against the outer wall of the insertion tube 4, thereby realizing the quick installation operation of the insertion tube 4.
[0036] In one embodiment, the inner wall of the nozzle seat 10 is conical.
[0037] In this embodiment, it is advantageous for high-pressure gas to drive the denitrification reducing agent to be ejected at high speed from the nozzle head 11.
[0038] In this embodiment, the ultra-long-distance denitrification reducing agent atomizing injection device is used as follows: First, the operator installs the mounting flange 5 on the outer wall of the boiler with bolts. Then, the operator inserts the insertion pipe 4 into the boiler through the mounting flange 5. By setting the sealing ring 501, the insertion pipe 4 is sealed. Next, the operator rotates the mounting sleeve 7, which slides along the outer wall of the positioning sleeve 6 through the thread. The movement of the mounting sleeve 7 causes the pressure ring 8 to fit tightly against the mounting rubber sleeve 9. In turn, the pressure ring 8 causes the mounting rubber sleeve 9 to fit tightly against the outer wall of the insertion pipe 4, thus realizing the rapid installation operation of the insertion pipe 4.
[0039] Next, the staff injected the denitrification reducing agent into the connecting pipe 1 through the denitrification interface 3. At the same time, high-pressure gas was injected into the connecting pipe 1 through the pneumatic interface 2. The high-pressure gas drove the denitrification reducing agent to be sprayed out at high speed from the nozzle head 11, which greatly improved the atomization spray distance of the denitrification reducing agent.
[0040] 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. An ultra-long distance denitration reductant atomizing and spraying device, characterized in that, The device includes a connecting pipe (1), one end of which is fixedly connected to a pneumatic interface (2), and the outer wall of the connecting pipe (1) is fixedly connected to a denitrification interface (3). The end of the connecting pipe (1) away from the pneumatic interface (2) is threadedly connected to an insertion pipe (4). The outside of the insertion pipe (4) is fitted with a mounting flange (5). A sealing ring (501) is provided at the connection between the mounting flange (5) and the insertion pipe (4). A positioning sleeve (6) is welded to the outer wall of the mounting flange (5). An installation sleeve (7) is threadedly connected to the outer wall of the positioning sleeve (6). A pressure ring (8) is fixedly connected to the inner wall of the installation sleeve (7). An installation rubber sleeve (9) is fitted to the outer wall of the pressure ring (8). One end of the insertion pipe (4) is threadedly connected to a nozzle seat (10). One end of the nozzle seat (10) is fixedly connected to a nozzle head (11).
2. The ultra-long-range denitration reductant atomizing injection device according to claim 1, characterized in that: The connecting pipe (1) is T-shaped.
3. The ultra-long-range denitration reductant atomizing injection device according to claim 1, characterized in that: The central axis of the connecting tube (1) coincides with the central axis of the insertion tube (4).
4. The ultra-long-range denitration reductant atomizing injection device according to claim 1, characterized in that: The cross-section of the mounting flange (5) is "L" shaped.
5. The ultra-long distance denitrification reducing agent atomizing and spraying device according to claim 1, characterized in that: The sealing ring (501) is provided in two sets.
6. The ultra-long distance denitrification reducing agent atomizing injection device according to claim 1, characterized in that: The central axes of the pressure ring (8) and the mounting rubber sleeve (9) coincide, and the connection between the pressure ring (8) and the mounting rubber sleeve (9) is inclined.
7. The ultra-long-range denitration reductant atomizing injection device according to claim 1, characterized in that: The inner wall of the nozzle seat (10) is conical.