Reducing agent denitration flow compensation device convenient to adjust

Abstract

The utility model relates to the technical field of reducing agent denitration flow compensation equipment, in particular to a reducing agent denitration flow compensation device convenient to adjust, which comprises a main pipeline, a flow adjusting valve is arranged on the surface of the main pipeline, and one output end of the main pipeline is fixedly connected with a compensation pipeline. A flow transmitter is arranged at the other output end of the main pipeline, a V-shaped needle valve and a pneumatic ball valve are sequentially arranged on the surface of the compensation pipeline from left to right, a driving mechanism and an adjusting mechanism are arranged on the inner side and the outer side of the main pipeline, and the driving mechanism and the adjusting mechanism enable an electric push rod to drive two connecting shafts to rotate synchronously. The two connecting shafts in the synchronous rotating state drive the two sets of adjusting plates to rotate correspondingly, the two sets of adjusting plates in the rotating state adjust the sizes of the openings of the two sets of through grooves correspondingly, and therefore the water flow in the main pipeline and the compensation pipeline can be conveniently adjusted through the mechanical structure.

Description

Technical Field

[0001] This utility model relates to the technical field of reducing agent denitrification flow compensation equipment, specifically a reducing agent denitrification flow compensation device that is easy to adjust. Background Technology

[0002] Denitrification technology, also known as selective non-catalytic reduction technology, is a clean denitrification technology that does not use a catalyst. It involves injecting an amino-containing reducing agent (such as ammonia water, urea solution, etc.) into a furnace within a temperature range of 850-1100℃ to reduce and remove NOx from the flue gas, generating nitrogen and water.

[0003] Existing denitrification flow compensation devices for reducing agents include a main pipeline, a flow regulating valve, a flow transmitter, a compensation pipeline, a pneumatic ball valve, and a V-type needle valve. The denitrification reducing agent flows from the main pipeline through the flow regulating valve and then through the flow transmitter. The system reads the real-time data from the flow transmitter through an analog signal. The compensation pipeline allows the denitrification reducing agent to bypass the flow regulating valve from the main pipeline and be collected by the pneumatic ball valve and V-type needle valve to the flow transmitter, thereby achieving flow regulation and compensation. However, existing devices cannot regulate the water flow rate inside the main pipeline and the compensation pipeline during use. Therefore, a denitrification flow compensation device for reducing agents that is easy to adjust is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an easily adjustable reducing agent denitrification flow compensation device to solve the problem mentioned in the background art that the existing devices cannot adjust the water flow rate inside the main pipeline and the compensation pipeline during use. Therefore, an easily adjustable reducing agent denitrification flow compensation device is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reducing agent denitrification flow compensation device that is easy to adjust, including a main pipeline, a flow regulating valve provided on the surface of the main pipeline, a compensation pipeline fixedly connected to one output end of the main pipeline, a flow transmitter provided at the other output end of the main pipeline, a V-shaped needle valve and a pneumatic ball valve provided sequentially from left to right on the surface of the compensation pipeline, and a drive mechanism and an adjustment mechanism provided on the inner and outer sides of the main pipeline;

[0006] The adjustment mechanism includes two fixed plates and a connecting shaft, two sets of through slots and an adjustment plate;

[0007] One of the fixing plates is fixedly connected to the inside of the main pipe, and the other fixing plate is fixedly connected to the inside of the compensation pipe. The through groove is opened on the surface of the fixing plate. The connecting shaft is rotatably connected to the fixing plate, and the adjusting plate is fixedly connected to the outer wall of the connecting shaft.

[0008] Preferably, both the through groove and the adjusting plate have a fan-shaped structure, and the adjusting plate in the rotating state is used to adjust the size of the opening of the through groove.

[0009] Preferably, the drive mechanism includes an electric push rod, a connecting rod, a rotating shaft, a first gear, a first rack, a second rack, a second gear, and two bevel gears;

[0010] The electric push rod is fixedly installed on the outside of the main pipe. The connecting rod is slidably connected to the compensation pipe. One bevel gear is fixedly mounted on the surface of one connecting shaft. The rotating shaft is rotatably connected to the main pipe. Another bevel gear is fixedly mounted on the surface of the rotating shaft. The first gear is fixedly mounted on the end of the rotating shaft. The first rack is fixedly mounted on one end of the connecting rod. The second rack is fixedly mounted on the other end of the connecting rod. The second gear is fixedly mounted on the surface of another connecting shaft.

[0011] Preferably, the two bevel gears mesh with each other, and the two bevel gears in the meshing state are used to drive one of the connecting shafts to rotate.

[0012] Preferably, the first gear meshes with the first rack, and the meshing state of the first gear and the first rack is used to drive the rotating shaft to rotate.

[0013] Preferably, the first rack is fixedly connected to the output end of the electric push rod, and the electric push rod in the energized state is used to drive the first rack to move.

[0014] Preferably, the second rack meshes with the second gear, and the meshing state of the second rack and the second gear is used to drive the other connecting shaft to rotate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the driving mechanism and the adjusting mechanism enable the electric push rod to drive the two connecting shafts to rotate synchronously. The two connecting shafts in the synchronous rotation state drive the two sets of adjusting plates to rotate respectively. Then, the two sets of adjusting plates in the rotating state adjust the size of the opening of the two sets of through slots respectively. Thus, the above-mentioned mechanical structure facilitates the adjustment of the water flow rate inside the main pipeline and the compensation pipeline. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the main pipeline of this utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of structure A in the diagram;

[0019] Figure 4 This is a schematic diagram of the drive mechanism and adjustment mechanism of this utility model.

[0020] In the diagram: 1. Main pipeline; 2. Flow regulating valve; 3. Flow transmitter; 4. Compensation pipeline; 5. Pneumatic ball valve; 6. V-needle valve; 7. Drive mechanism; 701. Electric push rod; 702. Connecting rod; 703. Bevel gear; 704. Rotating shaft; 705. First gear; 706. First rack; 707. Second rack; 708. Second gear; 8. Adjusting mechanism; 801. Fixed plate; 802. Through groove; 803. Adjusting plate; 804. Connecting shaft. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution for an easily adjustable reducing agent denitrification flow compensation device: an easily adjustable reducing agent denitrification flow compensation device includes a main pipe 1, a flow regulating valve 2 is provided on the surface of the main pipe 1, a compensation pipe 4 is fixedly connected to one output end of the main pipe 1, a flow transmitter 3 is provided at the other output end of the main pipe 1, a V-shaped needle valve 6 and a pneumatic ball valve 5 are provided on the surface of the compensation pipe 4 from left to right, and a drive mechanism 7 and an adjustment mechanism 8 are provided on the inner and outer sides of the main pipe 1;

[0023] The adjusting mechanism 8 includes two fixed plates 801, a connecting shaft 804, two sets of through slots 802, and an adjusting plate 803;

[0024] One fixed plate 801 is fixedly connected to the inside of the main pipe 1, and another fixed plate 801 is fixedly connected to the inside of the compensation pipe 4. A through groove 802 is opened on the surface of the fixed plate 801. The connecting shaft 804 is rotatably connected to the fixed plate 801. The adjusting plate 803 is fixedly connected to the outer wall of the connecting shaft 804.

[0025] Please refer to this carefully. Figure 3 Both the through groove 802 and the adjusting plate 803 have a fan-shaped structure, and the adjusting plate 803 in the rotating state is used to adjust the size of the opening of the through groove 802.

[0026] In this embodiment: the two connecting shafts 804 in a synchronous rotating state drive the two sets of adjusting plates 803 to rotate respectively, and the two sets of adjusting plates 803 in the rotating state adjust the size of the opening of the two sets of through slots 802 respectively.

[0027] Please refer to this carefully. Figure 3 The drive mechanism 7 includes an electric push rod 701, a connecting rod 702, a rotating shaft 704, a first gear 705, a first rack 706, a second rack 707, a second gear 708, and two bevel gears 703.

[0028] An electric actuator 701 is fixedly installed on the outside of the main pipe 1. A connecting rod 702 is slidably connected to the compensation pipe 4. A bevel gear 703 is fixedly mounted on the surface of a connecting shaft 804. The rotating shaft 704 is rotatably connected to the main pipe 1. Another bevel gear 703 is fixedly mounted on the surface of the rotating shaft 704. A first gear 705 is fixedly mounted on the end of the rotating shaft 704. A first rack 706 is fixedly mounted on one end of the connecting rod 702. A second rack 707 is fixedly mounted on the other end of the connecting rod 702. A second gear 708 is fixedly mounted on the surface of another connecting shaft 804.

[0029] In this embodiment: When the electric push rod 701 is powered on, the output end of the electric push rod 701 in operation drives the first rack 706, the connecting rod 702 and the second rack 707 to move. Since the first gear 705 meshes with the first rack 706, the moving first rack 706 drives the first gear 705 to rotate. The rotating first gear 705 drives the rotating shaft 704 to rotate. The rotating shaft 704 then drives another bevel gear 703 to rotate. Since the two bevel gears 703 mesh, the rotating bevel gear 703 drives one bevel gear 703 to rotate. The rotating bevel gear 703 drives a connecting shaft 804 to rotate.

[0030] Meanwhile, since the second rack 707 meshes with the second gear 708, the moving second rack 707 drives the second gear 708 to rotate, and the rotating second gear 708 drives another connecting shaft 804 to rotate. Thus, the two connecting shafts 804 rotate synchronously, and the two synchronously rotating connecting shafts 804 respectively drive the two sets of adjusting plates 803 to rotate.

[0031] Please refer to this carefully. Figure 3 Two bevel gears 703 mesh with each other, and the two bevel gears 703 in the meshing state are used to drive a connecting shaft 804 to rotate.

[0032] In this embodiment: the rotating shaft 704 drives another bevel gear 703 to rotate. Since the two bevel gears 703 mesh, the rotating bevel gear 703 drives one bevel gear 703 to rotate, and the rotating bevel gear 703 drives a connecting shaft 804 to rotate.

[0033] Please refer to this carefully. Figure 3 The first gear 705 meshes with the first rack 706, and the meshed first gear 705 and the first rack 706 are used to drive the rotating shaft 704 to rotate.

[0034] In this embodiment: Since the first gear 705 meshes with the first rack 706, the first rack 706 in the moving state drives the first gear 705 to rotate, and the first gear 705 in the rotating state drives the rotating shaft 704 to rotate.

[0035] Please refer to this carefully. Figure 4 The first rack 706 is fixedly connected to the output end of the electric push rod 701, and the electric push rod 701 in the energized state is used to drive the first rack 706 to move.

[0036] In this embodiment: the output end of the electric push rod 701 in operation drives the first rack 706, the connecting rod 702 and the second rack 707 to move.

[0037] Please refer to this carefully. Figure 4 The second rack 707 meshes with the second gear 708, and the meshed second rack 707 and second gear 708 are used to drive another connecting shaft 804 to rotate.

[0038] In this embodiment: Since the second rack 707 meshes with the second gear 708, the moving second rack 707 drives the second gear 708 to rotate, and the rotating second gear 708 drives another connecting shaft 804 to rotate.

[0039] Working principle: When it is necessary to adjust the water flow rate inside the main pipeline 1 and the compensation pipeline 4, the electric push rod 701 is first powered on and operated. The output end of the electric push rod 701 in operation drives the first rack 706, the connecting rod 702 and the second rack 707 to move. Since the first gear 705 and the first rack 706 are meshed, the moving first rack 706 drives the first gear 705 to rotate. The rotating first gear 705 drives the rotating shaft 704 to rotate. The rotating shaft 704 drives another bevel gear 703 to rotate. Since the two bevel gears 703 are meshed, the rotating bevel gear 703 drives another bevel gear 703 to rotate. The rotating bevel gear 703 drives a connecting shaft 804 to rotate.

[0040] Simultaneously, since the second rack 707 meshes with the second gear 708, the moving second rack 707 drives the second gear 708 to rotate. The rotating second gear 708 drives another connecting shaft 804 to rotate, so the two connecting shafts 804 rotate synchronously. The two synchronously rotating connecting shafts 804 respectively drive the two sets of adjusting plates 803 to rotate. The two sets of adjusting plates 803 respectively adjust the size of the openings of the two sets of through slots 802. Thus, the above mechanical structure facilitates the adjustment of the water flow rate inside the main pipe 1 and the compensation pipe 4.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reductant denitrification flow compensation device that is easy to adjust, comprising a main pipeline (1), a flow regulating valve (2) provided on the surface of the main pipeline (1), a compensation pipeline (4) fixedly connected to one output end of the main pipeline (1), a flow transmitter (3) provided at the other output end of the main pipeline (1), and a V-shaped needle valve (6) and a pneumatic ball valve (5) arranged sequentially from left to right on the surface of the compensation pipeline (4), characterized in that: The main pipe (1) is provided with a drive mechanism (7) and an adjustment mechanism (8) on its inner and outer sides; The adjustment mechanism (8) includes two fixed plates (801), a connecting shaft (804), two sets of through slots (802), and an adjustment plate (803); One of the fixing plates (801) is fixedly connected to the inside of the main pipe (1), and the other fixing plate (801) is fixedly connected to the inside of the compensation pipe (4). The through groove (802) is opened on the surface of the fixing plate (801). The connecting shaft (804) is rotatably connected to the fixing plate (801). The adjusting plate (803) is fixedly connected to the outer wall of the connecting shaft (804).

2. The adjustable reducing agent denitrification flow compensation device according to claim 1, characterized in that: Both the through groove (802) and the adjusting plate (803) have a fan-shaped structure, and the adjusting plate (803) in the rotating state is used to adjust the size of the opening of the through groove (802).

3. The adjustable reducing agent denitrification flow compensation device according to claim 1, characterized in that: The drive mechanism (7) includes an electric push rod (701), a connecting rod (702), a rotating shaft (704), a first gear (705), a first rack (706), a second rack (707), a second gear (708), and two bevel gears (703); The electric push rod (701) is fixedly installed on the outside of the main pipe (1), the connecting rod (702) is slidably connected to the compensation pipe (4), one bevel gear (703) is fixedly mounted on the surface of one connecting shaft (804), the rotating shaft (704) is rotatably connected to the main pipe (1), and another bevel gear (703) is fixedly mounted on the surface of the rotating shaft (704), the first gear (705) is fixedly mounted on the end of the rotating shaft (704), the first rack (706) is fixedly mounted on one end of the connecting rod (702), the second rack (707) is fixedly mounted on the other end of the connecting rod (702), and the second gear (708) is fixedly mounted on the surface of another connecting shaft (804).

4. The adjustable reducing agent denitrification flow compensation device according to claim 3, characterized in that: Two bevel gears (703) mesh with each other, and the two bevel gears (703) in the meshing state are used to drive one of the connecting shafts (804) to rotate.

5. The adjustable reducing agent denitrification flow compensation device according to claim 3, characterized in that: The first gear (705) meshes with the first rack (706), and the meshing state of the first gear (705) and the first rack (706) is used to drive the rotating shaft (704) to rotate.

6. The adjustable reducing agent denitrification flow compensation device according to claim 3, characterized in that: The first rack (706) is fixedly connected to the output end of the electric push rod (701), and the electric push rod (701) in the energized state is used to drive the first rack (706) to move.

7. The adjustable reducing agent denitrification flow compensation device according to claim 3, characterized in that: The second rack (707) meshes with the second gear (708), and the meshing state of the second rack (707) and the second gear (708) is used to drive the other connecting shaft (804) to rotate.

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