Automatic device for configuring ammonia water in water vapor medicine adding interval

Abstract

The utility model relates to ammonia water configuration technical field discloses a water vapor medicine adding section ammonia water automatic configuration device, in order to solve the ammonia dissolution stability of prior art is general, can easily cause the shortcoming of ammonia dissolution box life reduction. The utility model discloses ammonia water medicine adding box, pneumatic valve A, water adding branch pipe, pneumatic valve B, liquid level meter, liquid outlet branch pipe, pneumatic valve C, discharge main, manual valve B, desalted water pump etc. cooperate, utilize the export of water adding branch pipe to be located at the bottom end of ammonia water medicine adding box, and then facilitate in the water adding stage, reduce the uniform elevation of liquid level in ammonia water medicine adding box, reduce liquid level to move the situation, simultaneously because the export of pneumatic valve A is located at the top end of ammonia water medicine adding box, makes ammonia gas dissolving direction and bottom water injection direction form the convection effect, and then promotes the contact dissolution effect of ammonia gas and water, shortens the configuration time, slows down the pressure of ammonia water medicine adding box inside to move simultaneously, improves ammonia water configuration dissolution stability.

Description

Technical Field

[0001] This utility model relates to the field of ammonia water preparation technology, and in particular to an automatic ammonia water preparation device in a water vapor dosing room. Background Technology

[0002] The current chemical dosing room has two ammonia tanks. Initially, bottled liquid ammonia was used to prepare the ammonia solution. The required amount of ammonia was quantitatively injected into the mixing tank to prepare the ammonia solution of the required concentration. The on-site operation was complicated and prone to errors. At the same time, the ammonia odor was strong during the process, which could easily cause physical discomfort to the operators.

[0003] Chinese Patent Publication No. CN222401273U discloses an ammonia water preparation component, including an ammonia dissolving tank. A first level gauge is fixedly connected to the surface of the ammonia dissolving tank, and a first demineralized water pipe is fixedly connected to the surface of the ammonia dissolving tank. The liquid level of the solution in the dissolving tank is controlled by adjusting an electric door, which can be operated locally or remotely. The dissolving tank has a conductivity meter to monitor the concentration of the solution at all times to avoid over-addition and ensure the accuracy of ammonia water preparation.

[0004] The above-mentioned and existing related technologies have the following defects: In this device, the first demineralized water pipe is located at the top of the ammonia dissolving tank, while the ammonia delivery pipe is located at the bottom of the ammonia dissolving tank. During the dissolution process, since ammonia is extremely soluble in water, the design location can easily cause drastic changes in the dissolution temperature and gas pressure inside the ammonia dissolving tank, which in turn affects its service life and stability, creating safety hazards. Therefore, there is room for improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of generally poor ammonia dissolution stability, which easily leads to a reduction in the life of the ammonia dissolution tank. To address this, we propose an automatic ammonia water preparation device for a water vapor dosing room.

[0006] To achieve the above objectives, this application adopts the following technical solution: an automatic ammonia water preparation device for a steam-water dosing room, comprising a demineralized water pump, the outlet of the demineralized water pump being connected to a main water supply pipe, a water supply branch pipe being uniformly connected to one side of the main water supply pipe, one end of each water supply branch pipe being connected to an ammonia water dosing tank, the outlet of each water supply branch pipe being located on one side of the bottom of the ammonia water dosing tank, each water supply branch pipe being equipped with a pneumatic valve B, the ammonia water dosing tank being equipped with a manual valve B, one side of the top of the ammonia water dosing tank being connected to an ammonia gas branch pipe, one end of each ammonia gas branch pipe being connected to the main ammonia supply pipe, the main ammonia supply pipe being equipped with a manual valve A, the ammonia gas branch pipe being equipped with a pneumatic valve A, the bottom of the ammonia water dosing tank being connected to a discharge assembly, a level gauge being installed on one side of each ammonia water dosing tank, and a low-speed stirrer being vertically installed inside the ammonia water dosing tank.

[0007] Preferably, the discharge assembly includes a liquid discharge branch pipe connected to the bottom of the ammonia dosing tank, and the liquid discharge ends of the left and right liquid discharge branch pipes are connected to the main discharge pipe. Each liquid discharge branch pipe is equipped with a pneumatic valve C.

[0008] Preferably, the output terminal of the level gauge is connected to a PLC controller, and the output terminal of the PLC controller is electrically connected to pneumatic valve A, pneumatic valve B, pneumatic valve C, and demineralized water pump, respectively.

[0009] Preferably, the PLC controller is equipped with a time relay, and the output terminal of the time relay is electrically connected to the pneumatic valve A.

[0010] Preferably, pneumatic valves A, B, and C are all air-to-open structures, and a check valve is installed on each of the liquid outlet branch pipes. The check valve is located downstream of the liquid outlet branch pipe, and its outlet direction faces the main discharge pipe.

[0011] Preferably, a pressure transmitter is installed on the discharge main pipe, and the output of the pressure transmitter is connected to a PLC controller.

[0012] Preferably, the bottom stirring area of ​​the low-speed stirrer is located above the liquid surface of the ammonia dosing tank, and is used to stir and promote the uniform distribution of ammonia gas at the top of the ammonia dosing tank.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, the outlet of the water supply branch pipe is located at the bottom of the ammonia dosing tank, which facilitates a uniform rise in the liquid level within the tank during the water supply stage and reduces liquid level fluctuations. Simultaneously, since the outlet of the pneumatic valve A is located at the top of the ammonia dosing tank, a convection effect is formed between the ammonia dissolution direction and the bottom water injection direction, thereby promoting the contact and dissolution effect of ammonia and water, shortening the preparation time, and reducing pressure fluctuations inside the ammonia dosing tank, thus improving the stability of ammonia preparation and dissolution. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a frontal perspective view of the present invention.

[0017] Figure 2 This is a front view schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 4 This is a rear-view three-dimensional structural diagram of the present invention.

[0020] Legend: 1. Ammonia dosing tank; 2. Ammonia branch pipe; 3. Pneumatic valve A; 4. Water branch pipe; 5. Pneumatic valve B; 6. Low-speed agitator; 7. Level gauge; 8. Liquid outlet branch pipe; 9. Pneumatic valve C; 10. Discharge main pipe; 11. Ammonia main pipe; 12. Manual valve A; 13. Water main pipe; 14. Manual valve B; 15. Demineralized water pump. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Reference Figure 1 , Figure 4 As shown, this utility model provides a technical solution: an automatic ammonia water preparation device for a water vapor dosing room, including a demineralized water pump 15, the outlet of the demineralized water pump 15 is connected to a main water supply pipe 13, a water supply branch pipe 4 is uniformly connected to one side of the main water supply pipe 13, one end of each water supply branch pipe 4 is connected to an ammonia water dosing tank 1, the outlet of each water supply branch pipe 4 is located on one side of the bottom of the ammonia water dosing tank 1, each water supply branch pipe 4 is equipped with a pneumatic valve B5, the ammonia water dosing tank 1 is equipped with a manual valve B14, one side of the top of the ammonia water dosing tank 1 is connected to an ammonia gas branch pipe 2, one end of each ammonia gas branch pipe 2 is connected to the main ammonia supply pipe 11, the main ammonia supply pipe 11 is equipped with a manual valve A12, the ammonia gas branch pipe 2 is equipped with a pneumatic valve A3, the bottom of the ammonia water dosing tank 1 is connected to a discharge assembly, one side of each ammonia water dosing tank 1 is equipped with a level gauge 7, and a low-speed stirrer 6 is vertically installed inside the ammonia water dosing tank 1.

[0023] The relative positions of the ammonia gas branch pipe 2 and the water supply branch pipe 4 on the ammonia dosing tank 1 are designed to avoid violent reactions during ammonia dissolution, reduce the intensity of liquid level fluctuations, and ensure the ammonia preparation rate. Furthermore, the use of pneumatic valves A3 and B5, employing compressed air, enables automatic control of water and ammonia addition, reducing manual operation. Additionally, the use of manual valves A12 and B14 allows for easy switching to manual mode in case of malfunctions, preventing ammonia leakage.

[0024] Reference Figure 2 , Figure 3As shown in this embodiment: the discharge assembly includes a liquid discharge branch pipe 8 connected to the bottom of the ammonia dosing tank 1, the liquid discharge ends of the left and right liquid discharge branch pipes 8 are connected to the main discharge pipe 10, and each liquid discharge branch pipe 8 is equipped with a pneumatic valve C9.

[0025] By utilizing the pneumatic valve C9, it is possible to facilitate the synchronous discharge of the two ammonia dosing tanks 1, and to adapt to the ammonia usage of the dosing system, the discharge of one or two ammonia dosing tanks 1 can be selected, thereby improving the flexibility of dosing.

[0026] The output of level gauge 7 is connected to PLC controller, and the output of PLC controller is electrically connected to pneumatic valve A3, pneumatic valve B5, pneumatic valve C9, and demineralized water pump 15 respectively.

[0027] By utilizing the PLC controller, the addition of water and the opening and closing of the two ammonia dosing tanks 1 can be controlled, thereby controlling the amount of water added.

[0028] The PLC controller has an internal time relay, and the output of the time relay is connected to the pneumatic valve A3 via telecommunications.

[0029] By using a time relay, the addition time during the ammonia addition process is controlled to ensure the consistency of the ammonia concentration.

[0030] Pneumatic valves A3, B5, and C9 are all air-to-open structures. Each of them is equipped with a check valve on the liquid outlet branch pipe 8. The check valve is located downstream of the liquid outlet branch pipe 8, and its outlet direction is towards the main discharge pipe 10.

[0031] The check valve is used to prevent ammonia backflow and improve the accuracy of liquid level detection by level gauge 7.

[0032] A pressure transmitter is installed on the discharge main pipe 10, and the output of the pressure transmitter is connected to a PLC controller.

[0033] By using a pressure transmitter, the stability of the hydraulic pressure at the discharge manifold 10 can be ensured.

[0034] The bottom stirring area of ​​the low-speed stirrer 6 is located above the liquid surface of the ammonia dosing tank 1, and is used to stir and promote the uniform distribution of ammonia gas at the top of the ammonia dosing tank 1.

[0035] The low-speed rotation of the low-speed stirrer 6 is used to promote the uniform diffusion of ammonia gas at the top of the ammonia water dosing tank 1, thereby promoting the uniformity of ammonia gas and water surface dissolution.

[0036] Working Principle: The PLC controller controls the opening and closing of the two pneumatic valves C9 on the left and right sides. Based on the ammonia demand in the dosing system, pneumatic valves C9 can be rotated synchronously or individually. When the level gauge 7 detects that the liquid level in the ammonia dosing tank 1 is less than 0.5 meters, the PLC controller closes pneumatic valve C9 to prevent the ammonia dosing tank 1 from emptying. When the liquid levels in both ammonia dosing tanks 1 are less than 0.5 meters, the PLC controller opens the demineralized water pump 15 and pneumatic valve B5, thus synchronously adding water to both ammonia dosing tanks 1. When the level gauge 7 detects that the liquid level in the ammonia dosing tank 1 is greater than 0.9 meters, the PLC... The controller automatically shuts off the demineralized water pump 15 and pneumatic valve B5, and automatically opens pneumatic valve A3, allowing ammonia gas from the main ammonia supply pipe 11 to stably flow into the top of the ammonia dosing tank 1, thus dissolving the ammonia gas and water. During this process, a low-speed stirrer 6 is activated to slowly stir the ammonia gas, further increasing the dissolution rate. Simultaneously, a time relay is used to control the duration of ammonia gas entering the ammonia dosing tank 1 from the ammonia branch pipe 2. Since the ammonia gas flow rate, time, and water volume remain constant, the ammonia concentration in both ammonia dosing tanks 1 is ensured to be the same. Furthermore, because the overall ammonia preparation can be automated, manual operation steps are reduced, improving the overall safety of the preparation process.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An automatic ammonia water preparation device for a steam-water dosing room, characterized in that, The system includes a demineralized water pump, the outlet of which is connected to a main water supply pipe. One side of the main water supply pipe is evenly connected to branch water supply pipes, one end of which is connected to an ammonia dosing tank. The outlet of each branch water supply pipe is located at the bottom of the ammonia dosing tank. Each branch water supply pipe is equipped with a pneumatic valve B. The ammonia dosing tank is equipped with a manual valve B. One side of the top of the ammonia dosing tank is connected to an ammonia gas branch pipe, one end of which is connected to the main ammonia supply pipe. The main ammonia supply pipe is equipped with a manual valve A. The ammonia gas branch pipes are equipped with a pneumatic valve A. The bottom of the ammonia dosing tank is connected to a discharge assembly. A level gauge is installed on one side of the ammonia dosing tank. A low-speed agitator is vertically installed inside the ammonia dosing tank.

2. The automatic ammonia water preparation device for the steam dosing room according to claim 1, characterized in that: The discharge assembly includes a liquid discharge branch pipe connected to the bottom of the ammonia dosing tank. The liquid discharge ends of the left and right liquid discharge branch pipes are connected to the main discharge pipe. Each liquid discharge branch pipe is equipped with a pneumatic valve C.

3. The automatic ammonia water preparation device for the steam dosing room according to claim 2, characterized in that: The output terminal of the level gauge is connected to the PLC controller, and the output terminal of the PLC controller is electrically connected to pneumatic valve A, pneumatic valve B, pneumatic valve C, and demineralized water pump, respectively.

4. The automatic ammonia water preparation device for the steam dosing room according to claim 3, characterized in that: The PLC controller is equipped with a time relay, and the output terminal of the time relay is electrically connected to the pneumatic valve A.

5. The automatic ammonia water preparation device for the steam dosing room according to claim 2, characterized in that: Pneumatic valves A, B, and C are all air-to-open structures. Each of the liquid outlet branch pipes is equipped with a check valve located downstream of the liquid outlet branch pipe, with the outlet of the check valve facing the main discharge pipe.

6. The automatic ammonia water preparation device for the steam dosing room according to claim 2, characterized in that: A pressure transmitter is installed on the discharge main pipe, and the output of the pressure transmitter is connected to a PLC controller.

7. The automatic ammonia water preparation device for the steam dosing room according to claim 1, characterized in that: The bottom stirring area of ​​the low-speed stirrer is located above the liquid surface of the ammonia dosing tank, and is used to stir and promote the uniform distribution of ammonia gas at the top of the ammonia dosing tank.

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