Safe water seal

Abstract

The utility model discloses a safety water seal, which relates to the technical field of safety water seals and comprises three safety water seals and two communicating pipes, a water pipe connected with a water source end is arranged at the top of one safety water seal, and an automatic valve is arranged at one end, close to the safety water seal, of the water pipe. An electrode type liquid level meter is further arranged on the inner side of each safety water seal, a communicating mechanism is arranged between the three safety water seals and one communicating pipe, a sewage discharging mechanism is arranged between the three safety water seals and the other communicating pipe, the electrode type liquid level meter judges whether the safety water seals are lack of water or not, and the automatic valve is interlocked with the electrode type liquid level meter. When the upper limit of the liquid level is detected, the automatic valve is closed, when the lower limit of the liquid level is detected, the automatic valve is opened, the height of the upper limit of the liquid level is lower than that of an overflow port of the safety water seal, the liquid levels of the multiple safety water seals are automatically controlled at the same time under the condition that only one electrode type liquid level meter and the automatic valve are used, and the problems that the water amount of an existing safety water seal cannot be accurately controlled, and resources are wasted are solved.

Description

Technical Field

[0001] This utility model relates to the field of safety water seal technology, and in particular to a safety water seal. Background Technology

[0002] Currently, in the flue gas acid production process, an electrostatic precipitator is installed at the end of the purification process. A safety water seal is installed at the outlet flue of the electrostatic precipitator. Its main function is to protect the electrostatic precipitator shell and prevent deformation when the inlet pressure of the acid production fan is too high.

[0003] Currently, most existing safety water seals achieve their effect using the following technologies;

[0004] Liquid static pressure balance technology is the most basic working principle of safety water seal. Based on the principle of communicating vessels, water and other liquids form a liquid column of a certain height in the sealed cavity to generate static pressure. When there is a pressure difference on both sides, the liquid will automatically adjust in the sealed cavity to maintain the pressure balance at both ends, thereby preventing gas or liquid from flowing from one side to the other through the water seal and achieving a sealing effect.

[0005] Multi-stage water seal technology is used in some high-pressure or complex environments. It employs a multi-stage water seal structure, which connects multiple water seal chambers in series. Gas or liquid needs to pass through multiple liquid seal layers in sequence. Each stage of water seal can share a portion of the pressure difference, gradually achieving pressure balance and sealing, thereby enhancing the sealing effect and improving safety.

[0006] Float adjustment technology: Some safety water seals are equipped with floats that rise or sink as the liquid level changes, thereby adjusting the relevant components and maintaining the sealing effect.

[0007] Gas-liquid separation and defoaming technology: Some safety water seals, such as multi-layer hydrogen-oxygen safety water seals, have smoothing defoaming plates installed in the upper and lower cylinders. When gas and liquid are mixed, they can effectively eliminate foam, allowing gas and liquid to be separated better, and the gas to be output more purely. At the same time, it also helps to maintain the stable operation of the water seal and ensure its sealing performance and safety performance.

[0008] Differential pressure setting and convection tube technology, taking a multi-layer safety water seal device as an example, can eliminate the impact of high-pressure shock waves generated by backfire on downstream equipment by setting differential pressure in gas-liquid mixing convection tubes and liquid convection tubes, so that the safety water seal can play a better role in preventing backfire and improving the overall system safety.

[0009] Intelligent monitoring and automatic adjustment technology uses sensors such as pressure monitoring devices and liquid level monitoring devices to monitor the working status of the water seal in real time, such as pressure and liquid level parameters. Combined with the control system, it automatically controls the opening and closing of relevant valves, such as process water supply valve, exhaust valve, and nitrogen pressure replenishment valve, based on the monitoring data, to achieve automatic adjustment of water seal height, pressure control, and automatic water supply and drainage functions.

[0010] Currently, existing safety water seals have been found to have at least the following problems in actual use;

[0011] In daily production, in order to protect the electrostatic precipitator, the safety water seal is often in an overflow state, and the amount of water added to the safety water seal cannot be accurately controlled, resulting in water waste, increased load on the waste acid process and consumption of water-based chemicals and energy; before the system is ready to start up, the current safety water seal requires operators to go to the site to check the liquid level and manually add water, which consumes manpower and time and affects the start-up progress of the acid production system. Utility Model Content

[0012] To address the shortcomings of existing technologies, this utility model provides a safety water seal that solves the problems of inaccurate water volume control and the time and manpower required for existing safety water seals, which affect the start-up progress of the acid production system.

[0013] To achieve the above objectives, this utility model provides the following technical solution:

[0014] A safety water seal includes three safety water seals and two connecting pipes. One of the safety water seals has a water pipe connected to a water source at its top. An automatic valve is installed at the end of the water pipe near the safety water seal. An electrode-type level gauge is also installed inside the safety water seal. A connecting mechanism is provided between the three safety water seals and one of the connecting pipes. A sewage discharge mechanism is provided between the three safety water seals and the other connecting pipe. The connecting mechanism includes a first connecting valve, a second connecting valve, and a third connecting valve. The sewage discharge mechanism includes a first sewage discharge valve, a second sewage discharge valve, and a third sewage discharge valve.

[0015] Preferably, the first connecting valve, the second connecting valve, and the third connecting valve are fixedly connected to three safety water seals respectively.

[0016] Preferably, the ends of the first connecting valve, the second connecting valve, and the third connecting valve that are furthest from the safety water seal are fixedly connected to one of the connecting pipes.

[0017] Preferably, the first drain valve, the second drain valve, and the third drain valve are fixedly connected to the bottom of the three safety water seals.

[0018] Preferably, the ends of the first drain valve, the second drain valve, and the third drain valve that are furthest from the safety water seal are all fixedly connected to another connecting pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] I. The electrode-type level gauge detects the liquid level to determine whether the safety water seal is short of water. The automatic valve is interlocked with the electrode-type level gauge. When the upper limit of the liquid level is detected, the automatic valve closes; when the lower limit of the liquid level is detected, the automatic valve opens. The upper limit of the liquid level should be lower than the overflow port of the safety water seal. During normal production, the first, second, and third connecting valves are fully open, while the first, second, and third drain valves are fully closed. In this way, the liquid level of all safety water seals is the same, and only one automatic valve is needed to control the liquid level of all safety water seals to be in a normal state. If it is necessary to repair or drain a certain safety water seal, close the corresponding first, second, or third connecting valve and open the first, second, or third drain valve. Using only one electrode-type level gauge and automatic valve, the liquid level of multiple safety water seals can be automatically controlled simultaneously, avoiding the safety water seals from overflowing, reducing production costs, and solving the problem of inaccurate control of the water volume of existing safety water seals and waste of resources.

[0021] Second, by opening and closing the automatic valve, the water volume of multiple safety water seals can be precisely controlled. The amount of water added is reduced, which means less water needs to be processed, thus reducing production costs. At the same time, in the daily production process, the automatic valve is opened and closed by the signal control of the electrode level gauge, which can realize the automatic monitoring and control of the safety water seal level, reduce the workload of employees, improve the level of automation, and solve the problem that the existing safety water seal consumes manpower and time and affects the start-up progress of the acid production system. Attached Figure Description

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is an overall structural diagram of the present invention.

[0024] Legend: 1. Automatic valve; 2. Electrode level gauge; 3. First connecting valve; 4. Second connecting valve; 5. Third connecting valve; 6. First drain valve; 7. Second drain valve; 8. Third drain valve. Detailed Implementation

[0025] This application provides a safety water seal that effectively solves the problems of existing safety water seals having inaccurate water volume control and consuming manpower and time, thus affecting the start-up progress of the acid production system. Example

[0026] like Figure 1As shown, the technical solution in this application embodiment effectively solves the technical problems of the existing safety water seal volume not being able to be accurately controlled and consuming manpower and time, thus affecting the start-up progress of the acid production system. The overall idea is as follows:

[0027] To address the problems existing in the prior art, this utility model provides a safety water seal, comprising three safety water seals and two connecting pipes. One of the safety water seals has a water pipe connected to a water source at its top. An automatic valve 1 is installed at the end of the water pipe near the safety water seal. An electrode-type level gauge 2 is also installed inside the safety water seal. A connecting mechanism is provided between the three safety water seals and one of the connecting pipes, and a sewage discharge mechanism is provided between the three safety water seals and the other connecting pipe. The connecting mechanism includes a first connecting valve 3, a second connecting valve 4, and a third connecting valve 5, and the sewage discharge mechanism includes a first sewage discharge valve 6, a second sewage discharge valve 7, and a third sewage discharge valve 8.

[0028] The first connecting valve 3, the second connecting valve 4, and the third connecting valve 5 are respectively fixedly connected to three safety water seals.

[0029] The ends of the first connecting valve 3, the second connecting valve 4, and the third connecting valve 5, which are furthest from the safety water seal, are fixedly connected to one of the connecting pipes.

[0030] The first drain valve 6, the second drain valve 7, and the third drain valve 8 are fixedly connected to the bottom of the three safety water seals, respectively.

[0031] The ends of the first drain valve 6, the second drain valve 7, and the third drain valve 8 that are furthest from the safety water seal are all fixedly connected to another connecting pipe.

[0032] Working principle:

[0033] Electrode-type level gauge 2 detects the liquid level to determine whether there is a shortage of water in the safety water seal. Automatic valve 1 is interlocked with electrode-type level gauge 2. When the upper limit of the liquid level is detected, automatic valve 1 closes; when the lower limit of the liquid level is detected, automatic valve 1 opens. The upper limit of the liquid level should be lower than the overflow port of the safety water seal. The first connecting valve 3, the second connecting valve 4, and the third connecting valve 5 are fully open during normal production, while the first drain valve 6, the second drain valve 7, and the third drain valve 8 are fully closed. In this way, the liquid level of all safety water seals is the same, and only one automatic valve 1 is needed to control the liquid level of all safety water seals to be in a normal state. If it is necessary to repair or drain a certain safety water seal, close the corresponding first connecting valve 3, the second connecting valve 4, or the third connecting valve 5, and open the first drain valve 6, the second drain valve 7, or the third drain valve 8.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A safety water seal, comprising three safety water seals and two connecting pipes, characterized in that, One of the safety water seals is equipped with a water pipe connected to the water source at the top. An automatic valve (1) is installed at the end of the water pipe near the safety water seal. An electrode level gauge (2) is also installed inside the safety water seal. A communication mechanism is provided between the three safety water seals and one of the connecting pipes. A sewage discharge mechanism is provided between the three safety water seals and another connecting pipe. The connecting mechanism includes a first connecting valve (3), a second connecting valve (4), and a third connecting valve (5). The sewage discharge mechanism includes a first sewage discharge valve (6), a second sewage discharge valve (7), and a third sewage discharge valve (8).

2. A safety water seal as described in claim 1, characterized in that: The first connecting valve (3), the second connecting valve (4) and the third connecting valve (5) are respectively fixedly connected to three safety water seals.

3. A safety water seal as described in claim 2, characterized in that: The ends of the first connecting valve (3), the second connecting valve (4), and the third connecting valve (5) away from the safety water seal are fixedly connected to one of the connecting pipes.

4. A safety water seal as described in claim 3, characterized in that: The first drain valve (6), the second drain valve (7) and the third drain valve (8) are fixedly connected to the bottom of the three safety water seals respectively.

5. A safety water seal as described in claim 4, characterized in that: The ends of the first drain valve (6), the second drain valve (7), and the third drain valve (8) that are away from the safety water seal are all fixedly connected to another connecting pipe.

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