Automatic alkali adding device of water flushing pump

Abstract

The utility model discloses an automatic alkali adding device of a water flushing pump, which relates to the technical field of water flushing pumps, and comprises a water flushing pump main body, the water flushing pump main body is provided with an automatic blow-down valve, a liquid level meter and a PH meter, the automatic blow-down valve is linked with the PH meter and the liquid level meter, when the value detected by the PH meter is less than or equal to 7-7.5, the automatic blow-down valve is opened, and when the value detected by the liquid level meter is less than or equal to 7-7.5, the automatic blow-down valve is closed. Automatically closing until the water level drops to a preset liquid level parameter; according to the technical scheme provided by the utility model, the automatic monitoring and adjustment of the PH value and the liquid level are realized, the requirement of manual operation is reduced, the misoperation caused by human factors is reduced, and the production efficiency is obviously improved. The device can monitor and automatically adjust the PH value in the water flushing pump body in real time, it is guaranteed that the PH value is kept within an ideal range, the device is particularly important for the production process depending on the specific PH condition, and the product quality and stability can be improved easily.

Description

Technical Field

[0001] The utility model relates to the technical field of water flushing pumps, in particular to an automatic alkali adding device for a water flushing pump. Background Art

[0002] In the process of chemical synthesis, acidic gases are often generated, such as hydrogen chloride, hydrogen bromide, hydrogen fluoride, sulfur dioxide, formic acid and other inorganic or organic acidic gases, or volatile acidic materials are used in the reaction system, such as hydrochloric acid, hydrobromic acid, acetic acid, formic acid, benzenesulfonic acid, etc. Water flushing pumps are often used in the process of feeding or distillation. Compared with Hastelloy or titanium, water flushing pumps have the advantages of having the best anti-corrosion function and less investment. They are used for negative pressure feeding or negative pressure distillation operations, and are sometimes used to absorb acidic gases.

[0003] During use, in order to prevent the overflow and spread of acidic gas, causing environmental pollution and equipment corrosion. The commonly used method is to use dilute alkali solution for absorption through the principle of acid-base neutralization. First, since in the whole process, only by testing the pH value can we know whether the absorption liquid in the water flushing pump meets the absorption requirements. If the pH value of the absorption liquid is less than 7, the acidic gas will overflow, especially the overflow of toxic gas, which has a great impact on the safety of personnel, environmental pollution, and equipment corrosion. Second, since in the production process, the absorption of acidic gas is usually an irregular process, it is difficult to control the pH value, and it can only be tested frequently or liquid alkali is added frequently. At the same time, the water absorption liquid in the vacuum pump is discharged irregularly. The whole process is complicated and prone to operational errors. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a water flushing pump automatic alkali adding device to solve the problems in the prior art.

[0005] In view of this, the utility model provides an automatic alkali adding device for a water flushing pump, comprising a water flushing pump main body, wherein the water flushing pump main body is equipped with an automatic sewage valve, a liquid level meter and a pH meter, and the automatic sewage valve is linked with the pH meter and the liquid level meter. When the value detected by the pH meter is ≤7-7.5, the automatic sewage valve is opened and automatically closed after the water level drops to a preset liquid level parameter.

[0006] Optionally, it also includes a gas buffer tank connected to the water pump body through a second check valve, wherein the gas buffer tank is equipped with a vacuum gauge and a gas feed port, and is connected to the injection pipe of the water pump body.

[0007] Optionally, it also includes a diluted alkali tank connected to the water flushing pump body through a first check valve and an automatic diluted alkali switch valve, wherein the diluted alkali tank is equipped with a vent port and a diluted alkali feed port, and is connected to the injection pipe of the water flushing pump body through the automatic diluted alkali switch valve.

[0008] Optionally, the automatic dilute alkali switch valve is linked to a liquid level meter. When the water level drops to a preset low liquid level parameter, the automatic dilute alkali switch valve opens, and the vacuum of the water flushing pump body is used to add the dilute alkali liquid into the water tank through the injection pipe, and the valve automatically closes after the water level rises to a preset high liquid level parameter.

[0009] Optionally, the concentration of the dilute alkali solution ranges from 1% to 52%, and is added directly through the injection pipe by the vacuum force of the water pump body itself.

[0010] Optionally, the opening range of the automatic sewage valve and the automatic diluted alkali switch valve is between 1% and 100%.

[0011] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0012] 1. The utility model is a water-pump automatic alkali-adding device, which is linked to the automatic drain valve, the pH meter and the liquid level meter through the automatic control system. When the value detected by the pH meter is ≤7-7.5, the automatic drain valve is opened until the water level drops to the preset liquid level parameter XY and then automatically closes, realizing automatic monitoring and adjustment of the pH value and liquid level, reducing the need for manual operation, reducing operational errors caused by human factors, and significantly improving production efficiency. The device can monitor and automatically adjust the pH value in the main body of the water-pump in real time to ensure that it is maintained within the ideal range, which is particularly important for production processes that rely on specific pH conditions and helps to improve product quality and stability.

[0013] The utility model is a water-flushing pump automatic alkali adding device, which realizes precise control of the liquid level through the linkage of the liquid level meter with the automatic sewage discharge valve and the automatic dilute alkali switch valve, avoiding equipment failure or production interruption caused by too high or too low liquid level, and ensuring a continuous and stable production process. The automated sewage discharge and alkali addition process avoids excessive discharge and unnecessary waste of dilute alkali liquid, helps to save resources, reduces potential pollution to the environment, and embodies the concept of green production. It reduces the chances of direct manual contact with chemicals and reduces the occupational health risks faced by operators. At the same time, the use of an automated control system also reduces the possibility of safety accidents caused by improper operation.

[0014] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Explanation of the reference numerals: 101, water flushing pump body; 102, gas buffer tank; 103, diluted alkali tank; 1, automatic sewage valve; 2, automatic diluted alkali switch valve; 3, first check valve; 4, second check valve; 5, liquid level meter; 6, pH meter. DETAILED DESCRIPTION

[0018] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0019] The following is a detailed description of an automatic alkali adding device with a water flushing pump according to an embodiment of the utility model in conjunction with the accompanying drawings.

[0020] Example

[0021] For easier understanding, see Figure 1 The utility model provides an embodiment of an automatic alkali adding device for a water flushing pump, comprising a water flushing pump body 101, wherein the water flushing pump body 101 is equipped with an automatic sewage valve 1, a liquid level meter 5 and a pH meter 6, wherein the automatic sewage valve 1 is linked to the pH meter 6 and the liquid level meter 5. When the value detected by the pH meter 6 is ≤7-7.5, the automatic sewage valve 1 is opened and automatically closed after the water level drops to a preset liquid level parameter XY.

[0022] It should be noted that the main body 101 of the water flushing pump is responsible for liquid circulation and suction. The automatic drain valve 1 is used to discharge unqualified liquids and is linked with the pH meter and the liquid level meter. The liquid level meter 5 monitors the internal liquid level of the water flushing pump and controls the drainage and alkali addition operations. The pH meter 6 detects the acidity and alkalinity of the liquid and triggers the automatic drain valve to operate.

[0023] In some embodiments, a gas buffer tank 102 connected to the water pump body 101 through a second check valve 4 is also included. The gas buffer tank 102 is equipped with a vacuum gauge and a gas feed port, and is connected to the injection pipe of the water pump body 101.

[0024] It should be noted that the gas buffer tank 102 is connected to the water flushing pump body through a second check valve to provide gas buffering and is equipped with a vacuum gauge and a gas feed port.

[0025] In some embodiments, it also includes a diluted alkali tank 103 connected to the water pump body 101 through a first check valve 3 and an automatic diluted alkali switch valve 2, wherein the diluted alkali tank 103 is equipped with a vent port and a diluted alkali feed port, and is connected to the injection pipe of the water pump body 101 through the automatic diluted alkali switch valve 2.

[0026] It should be noted that the diluted alkali tank 103 is used to store diluted alkali liquid, is connected to the water flushing pump body through the first check valve and the automatic diluted alkali switch valve, and is used to supplement the alkaline liquid.

[0027] The automatic diluted alkali switch valve 2 controls the filling of diluted alkali solution and is linked with the liquid level meter 5.

[0028] In some embodiments, the automatic diluted alkali switch valve 2 is linked to the liquid level meter 5. When the water level drops to a preset low liquid level parameter, the automatic diluted alkali switch valve 2 opens, and the vacuum of the water pump body 101 is used to add the diluted alkali liquid to the water tank through the injection pipe, and the dilute alkali liquid is automatically closed after the water level rises to a preset high liquid level parameter. The concentration range of the diluted alkali liquid is 1%-52%, and it is added directly through the injection pipe by the vacuum force of the water pump body 101 itself, without the need for an additional power system. The opening range of the automatic sewage valve 1 and the automatic diluted alkali switch valve 2 is between 1%-100% to meet different production needs.

[0029] In summary, pH value control and automatic sewage discharge are as follows:

[0030] When the value detected by the pH meter 6 is ≤7-7.5, it indicates that the liquid is too acidic, and the automatic drain valve 1 opens to discharge part of the liquid.

[0031] The sewage discharge process is monitored by the liquid level meter 5. When the water level drops to the preset liquid level parameter XY, the automatic sewage discharge valve 1 is automatically closed to prevent excessive discharge.

[0032] Automatic replenishment of dilute alkali solution:

[0033] When the water level drops to a preset low liquid level parameter, the automatic diluted alkali switch valve 2 opens, and the vacuum force of the water flushing pump body 101 is used to inject the diluted alkali liquid into the water tank through the injection pipe.

[0034] The replenishment amount is controlled by the liquid level meter 5. When the water level rises to the preset high liquid level parameter, the automatic diluted alkali switch valve 2 is automatically closed.

[0035] The gas buffer tank 102 is used to provide gas buffering and stabilize the pressure of the water pump body 101. It is connected to the water pump body 101 through the second check valve 4 to ensure smooth entry of gas.

[0036] Connection between the diluted alkali tank 103 and the water flushing pump body 101: The diluted alkali tank 103 is connected to the water flushing pump body 101 through the first check valve 3 and the automatic diluted alkali switch valve 2 to ensure a stable supply of diluted alkali liquid.

[0037] Among them, the opening of the automatic sewage valve 1 and the automatic diluted alkali switch valve 2 can be flexibly adjusted within the range of 1%-100% to meet different work requirements. The concentration of diluted alkali solution is set between 1%-52%, and is directly introduced through the vacuum force of the water flushing pump body 101 to ensure the rapid recovery of the pH value. The liquid level parameter XY is set according to the actual capacity and production requirements of the water flushing pump body 101 and the diluted alkali tank 103 to ensure the safety and efficiency of the operation.

[0038] Working principle: pH meter 6 continuously monitors the pH value of the liquid in the water pump body 101. When the detected pH value is lower than the preset threshold value of 7-7.5, it indicates that the acidity of the liquid is too high, and the automatic drain valve 1 receives the signal and opens. After the automatic drain valve opens, it starts to discharge part of the liquid into the wastewater tank, and this process is monitored by the liquid level meter 5. When the water level drops to the preset low liquid level parameter XY, the liquid level meter sends a signal to close the automatic drain valve to prevent excessive discharge from causing the liquid level to be too low.

[0039] After the automatic drain valve is closed, if the liquid level meter detects that the liquid level in the water pump body 101 is still lower than the set low liquid level parameter, the automatic diluted alkali switch valve 2 is activated. After the automatic diluted alkali switch valve 2 is opened, the diluted alkali liquid in the diluted alkali tank 103 is automatically replenished into the water pump body 101 through the first check valve 3 and the injection pipe under the vacuum of the water pump body 101. The concentration of the diluted alkali liquid of 1%-52% helps to quickly adjust the pH value to the normal range. The replenishment process continues until the liquid level reaches the preset high liquid level parameter, at which time the liquid level meter 5 triggers the signal again, closes the automatic diluted alkali switch valve 2, and stops adding alkali. The gas buffer tank 102 is connected to the water pump body 101 through the second check valve 4 to stabilize the air pressure in the system. The gas in the gas buffer tank 102 is monitored by a vacuum gauge to ensure that the air pressure is stable when the water pump body 101 is running, thereby ensuring the smooth injection of the diluted alkali liquid and the operating efficiency of the overall system.

[0040] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A water flushing pump automatic alkali adding device, characterized in that: The invention comprises a water flushing pump body (101), wherein the water flushing pump body (101) is equipped with an automatic sewage discharge valve (1), a liquid level meter (5) and a pH meter (6), wherein the automatic sewage discharge valve (1) is linked to the pH meter (6) and the liquid level meter (5), and when the value detected by the pH meter (6) is ≤7-7.5, the automatic sewage discharge valve (1) is opened and automatically closed after the water level drops to a preset liquid level parameter (XY).

2. The automatic alkali adding device with a water flushing pump according to claim 1 is characterized in that: It also includes a gas buffer tank (102) connected to the water pump body (101) via a second check valve (4); the gas buffer tank (102) is equipped with a vacuum gauge and a gas feed port, and is connected to the injection pipe of the water pump body (101).

3. The automatic alkali adding device with a water flushing pump according to claim 1 is characterized in that: The invention also comprises a diluted alkali tank (103) connected to the water flushing pump body (101) via a first check valve (3) and an automatic diluted alkali switch valve (2); the diluted alkali tank (103) is provided with a venting port and a diluted alkali feed port, and is connected to the injection pipe of the water flushing pump body (101) via the automatic diluted alkali switch valve (2).

4. The automatic alkali adding device with a water flushing pump according to claim 3 is characterized in that: The automatic diluted alkali switch valve (2) is linked to the liquid level meter (5). When the water level drops to a preset low liquid level parameter, the automatic diluted alkali switch valve (2) opens, and the vacuum of the water pump body (101) is used to add diluted alkali liquid into the water tank through the injection pipe, and the valve automatically closes after the water level rises to a preset high liquid level parameter.

5. The automatic alkali adding device with a water flushing pump according to claim 4 is characterized in that: The concentration of the dilute alkali solution is in the range of 1% to 52%, and is directly added through the injection pipe by the vacuum force of the water pump body (101).

6. The automatic alkali adding device with a water flushing pump according to claim 1 is characterized in that: The opening range of the automatic sewage valve (1) and the automatic diluted alkali switch valve (2) is between 1% and 100%.

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