Centralized ammonification device for boiler water treatment

Abstract

The utility model relates to the field of boiler water treatment, in particular to a centralized ammonification device for boiler water treatment. In the prior art, chemicals are mostly added manually, so that the working efficiency is low, and potential safety hazards also exist. A centralized ammonification device for boiler water treatment comprises a mounting table and the like. The mounting table is fixedly connected with a vertical boiler and an ammonia storage tank, the vertical boiler is provided with multi-stage dosing points, the ammonia storage tank is provided with a liquid level meter, and the mounting table is fixedly connected with a metering pump. When the DCS controller detects that the PH value of the outlet water is low, the DCS controller can control the metering pump to pump ammonia water to enter three-stage dosing points on the vertical boiler, a worker rotates the adjusting valve according to the flow meter on the branch pipe, independent control over the dosing points in all stages is achieved, the operation process can be simplified, the working efficiency can be improved, meanwhile, the dosing amount can be accurately controlled, and the working efficiency can be improved. And multi-point independent control can be achieved, and the requirements of different working conditions are met.

Description

Technical Field

[0001] This utility model relates to the field of boiler water treatment, and in particular to a centralized ammonia addition device for boiler water treatment. Background Technology

[0002] In boiler water treatment, ammonia addition is a common chemical adjustment method, mainly used to adjust pH value, prevent acid corrosion, and protect the boiler and metal components of the thermal system. Traditional ammonia addition methods in boiler water treatment are mostly decentralized, which suffers from problems such as inaccurate dosage control, cumbersome operation, and significant ammonia evaporation losses. Existing technologies mostly rely on manual dosing, which is not only inefficient but also poses safety hazards. Utility Model Content

[0003] To address the shortcomings or deficiencies of the existing technology, this utility model provides a centralized ammonia dosing device for boiler water treatment, which simplifies the operation process, improves work efficiency, accurately controls the dosage to ensure stable boiler water quality, and allows for independent control at multiple points to adapt to different operating conditions.

[0004] The technical solution of this utility model is as follows: a centralized ammonia dosing device for boiler water treatment, comprising an installation platform, on which a vertical boiler and an ammonia storage tank are fixedly connected. The vertical boiler has multiple dosing points. The top of the ammonia storage tank is equipped with a water-sealing device to prevent ammonia volatilization. A level gauge is installed on the ammonia storage tank to monitor the ammonia level. An alarm is triggered when the ammonia level in the tank is too low. A metering pump is fixedly connected to the installation platform. The metering pump uses frequency conversion control to achieve stepless speed regulation. A feed pipe is fixedly connected between the metering pump and the ammonia storage tank. The ammonia storage tank and the metering pump are connected through the feed pipe. A branch pipe is fixedly connected between the metering pump and the multi-stage dosing point on the vertical boiler. Three diversion pipes are provided on the branch pipe. The metering pump and the multi-stage dosing point on the vertical boiler are connected through the branch pipe. Each of the three diversion pipes on the branch pipe is equipped with a flow meter and a regulating valve. A DCS controller is provided on the vertical boiler. The DCS controller is electrically connected to the metering pump.

[0005] Compared with the prior art, this utility model has the following advantages: When the DCS controller detects that the pH value of the outlet water is low, the DCS controller will control the metering pump to start. Ammonia water enters the three dosing points on the vertical boiler through the three diversion pipes on the branch pipe. The operator rotates the regulating valve according to the flow meter on the three diversion pipes on the branch pipe to achieve independent control of each dosing point. In this way, the centralized dosing method can simplify the operation process, improve work efficiency, accurately control the dosing amount, ensure the stability of boiler water quality, and enable independent control at multiple points to meet the needs of different operating conditions. Attached Figure Description

[0006] Figure 1 A three-dimensional structural diagram of this utility model.

[0007] Figure 2 A three-dimensional structural diagram of the branch pipe, flow meter, and regulating valve of this utility model.

[0008] Figure 3 A three-dimensional structural diagram of the metering pump, feed pipe, and branch pipe of this utility model.

[0009] Attached reference numerals: 1-mounting platform, 2-vertical boiler, 3-ammonia storage tank, 4-level gauge, 5-metering pump, 6-feed pipe, 7-branch pipe, 8-flow meter, 9-regulating valve, 10-DCS controller. Detailed Implementation

[0010] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0011] Example 1

[0012] A centralized ammonia dosing device for boiler water treatment, such as Figures 1-3 As shown, the system includes an installation platform 1, on which a vertical boiler 2 and an ammonia storage tank 3 are bolted together. The ammonia storage tank 3 has a water-sealing device at its top to prevent ammonia evaporation. The vertical boiler 2 has multiple dosing points. The ammonia storage tank 3 is equipped with a level gauge 4 to monitor the ammonia level. An alarm will sound when the ammonia level in the tank is too low. A metering pump 5 is bolted together to the installation platform 1. The metering pump 5 uses frequency conversion control for stepless speed regulation. The metering pump 5 is connected to the ammonia storage tank 3. A feed pipe 6 is connected via a flange. The ammonia storage tank 3 and the metering pump 5 are connected via the feed pipe 6. A branch pipe 7 is connected via a flange between the metering pump 5 and the multi-stage dosing point on the vertical boiler 2. The branch pipe 7 is equipped with three diversion pipes. The metering pump 5 and the multi-stage dosing point on the vertical boiler 2 are connected via the branch pipe 7. Each of the three diversion pipes on the branch pipe 7 is equipped with a flow meter 8 and a regulating valve 9. The vertical boiler 2 is equipped with a DCS controller 10. The DCS controller 10 is electrically connected to the metering pump 5.

[0013] Initially, the ammonia storage tank 3 contains an appropriate amount of ammonia water. When the DCS controller 10 detects that the pH value of the effluent is low, the DCS controller 10 will control the metering pump 5 to start. The metering pump 5 will draw the ammonia water in the ammonia storage tank 3 into the branch pipe 7 through the feed pipe 6. The ammonia water will then enter the three-stage chemical dosing points on the vertical boiler 2 through the three diversion pipes on the branch pipe 7. The operator will turn the regulating valve 9 according to the flow meter 8 on the three diversion pipes on the branch pipe 7 to achieve independent control of each stage of chemical dosing point. In this way, the centralized chemical dosing method can simplify the operation process, improve work efficiency, accurately control the dosing amount, ensure the stability of boiler water quality, and enable independent control at multiple points to meet the needs of different operating conditions.

[0014] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A centralized ammonia dosing device for boiler water treatment, characterized by: The system includes an installation platform (1), on which a vertical boiler (2) and an ammonia storage tank (3) are fixedly connected. The vertical boiler (2) is equipped with multiple dosing points, and the ammonia storage tank (3) is equipped with a level gauge (4). A metering pump (5) is fixedly connected to the installation platform (1), and a feed pipe (6) is fixedly connected between the metering pump (5) and the ammonia storage tank (3). The ammonia storage tank (3) and the metering pump (5) are connected through the feed pipe (6). A branch pipe (7) is fixedly connected between the metering pump (5) and the multi-stage dosing point of the vertical boiler (2). The metering pump (5) and the multi-stage dosing point of the vertical boiler (2) are connected through the branch pipe (7). A flow meter (8) and a regulating valve (9) are provided on each of the three branch pipes on the branch pipe (7). A DCS controller (10) is provided on the vertical boiler (2). The DCS controller (10) is electrically connected to the metering pump (5).

2. The centralized ammonia addition device for boiler water treatment according to claim 1, characterized in that: The ammonia storage tank (3) is equipped with a water-sealing device on top to prevent ammonia from evaporating.

3. A centralized ammonia addition device for boiler water treatment according to claim 1, characterized in that: The level gauge (4) is used to monitor the amount of ammonia in the ammonia storage tank (3), and will issue an alarm when the amount of ammonia in the ammonia storage tank (3) is too low.

4. A centralized ammonia addition device for boiler water treatment according to claim 1, characterized in that: The metering pump (5) adopts frequency conversion control, which can realize stepless speed regulation.

5. A centralized ammonia addition device for boiler water treatment according to claim 1, characterized in that: The branch pipe (7) is equipped with three branch pipes.

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