Device for automatically switching chlorine

Abstract

The utility model belongs to the technical field of magnesium chloride electrolysis equipment, and relates to a device for automatically switching chlorine. Comprising a gas collecting hood, the gas collecting hood is connected with a chlorine main pipe, the chlorine main pipe is connected with a chlorine branch pipe module, chlorine is conveyed to a chlorine main pipe module through the gas collecting hood, the chlorine main pipe and the chlorine branch pipe module in sequence, and the chlorine branch pipe module comprises a first pneumatic valve and a second pneumatic valve. The control unit controls the opening and closing states of the first pneumatic valve and the second pneumatic valve according to the adjusting signals. The first branch pipe and the second branch pipe of the chlorine system can be automatically switched on the premise that current is not reduced, the total yield of liquid magnesium is increased, the labor intensity of field staff is reduced, and risks caused by manual operation are reduced. And meanwhile, the automatic chlorine switching system can realize the production automation of the sponge titanium, and can enhance the continuity and stability of the production.

Description

TECHNICAL FIELD

[0001] The utility model belongs to magnesium chloride electrolytic equipment technical field relates to a device for automatic switching chlorine. BACKGROUND

[0002] In the magnesium electrolytic production process, switching chlorine system can not only improve the chlorine concentration, but also reduce the corrosion of gas to the pipeline, etc., improve the service life.

[0003] In the prior art, the production workshop generally adopts manual switching chlorine, and the specific implementation process is as follows: after the current of the series-connected electrolytic cell is reduced to 0, the blind plate of each chlorine branch pipe after switching each electrolytic cell is switched, and when the chlorine pipeline switching is completed, the current is restored and normal production is carried out. The process lasts for a long time, increases the labor intensity of the site, reduces the output of the workshop, and affects the normal production of the workshop; in addition, the irritating gas may overflow and disperse in the air, which is inhaled into the body by the operator, causing damage to the respiratory mucosa and endangering the life and health of the operator. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned prior art, and proposes a device for automatic switching chlorine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A device for automatic switching chlorine, comprising a gas collecting hood, the gas collecting hood is connected with a chlorine main pipe, the chlorine main pipe is connected with a chlorine branch pipe module, chlorine is transmitted to a chlorine main pipe module in turn through the gas collecting hood, the chlorine main pipe, the chlorine branch pipe module, each chlorine branch pipe module contains a first pneumatic valve and a second pneumatic valve, the opening and closing state of the first pneumatic valve and the second pneumatic valve is controlled by a control unit, and the input end of the control unit is electrically connected with a detection module.

[0007] Further, the chlorine branch pipe module comprises a first chlorine branch pipe and a second chlorine branch pipe, the first pneumatic valve is installed at the upper end of the first chlorine branch pipe, and the second pneumatic valve is installed at the upper end of the second chlorine branch pipe.

[0008] Further, the first pneumatic valve and the second pneumatic valve have interlocking function.

[0009] Further, the first pneumatic valve and the second pneumatic valve are both pneumatic piston type half ball valves.

[0010] Further, the control unit comprises:

[0011] A storage module is used for storing the state information of the first pneumatic valve and the second pneumatic valve.

[0012] Display module: for displaying the opening and closing state of the first pneumatic valve and the second pneumatic valve.

[0013] Further, the output end of the control unit controls the opening and closing of the first pneumatic valve and the second pneumatic valve, respectively.

[0014] Further, the detection module is a touch unit.

[0015] Further, the detection module is a chlorine concentration detector, which is located in the gas collecting hood, and the output end of the chlorine concentration detector is electrically connected with the input end of the control unit.

[0016] Further, the detection module is a chlorine concentration detector, which is located in the gas collecting hood, and the output end of the chlorine concentration detector is electrically connected with the input end of the control unit.

[0017] Compared with the prior art, the device has the following beneficial effects:

[0018] The device for automatically switching chlorine gas can automatically switch the first branch pipe and the second branch pipe of the chlorine gas system without reducing the current, improves the total output of liquid magnesium, reduces the labor intensity of the on-site personnel and the risk caused by human operation, realizes the automation of the titanium sponge production, and strengthens the continuity and stability of the production. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and forming a part thereof, together with the specification, serve to explain the principle of the device.

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The device for automatically switching chlorine gas is shown in the schematic view.

[0022] Wherein: 1 is a gas collecting hood; 2.1 is a first pneumatic valve; 2.2 is a second pneumatic valve; 3 is a chlorine branch pipe module; 3.1 is a first chlorine branch pipe; 3.2 is a second chlorine branch pipe; 4 is a chlorine main pipe module; and 5 is a chlorine main pipe. DETAILED DESCRIPTION

[0023] The exemplary embodiments will be described in detail below, and the embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples consistent with some aspects of the present application as detailed in the appended claims.

[0024] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiments

[0026] A device for automatically switching chlorine, comprising a gas collecting hood 1, a chlorine main pipe 5 connected to the gas collecting hood 1, a chlorine branch pipe module 3 connected to the chlorine main pipe 5, and a chlorine main pipe module 4, wherein chlorine is transmitted to the chlorine main pipe module 4 in sequence through the gas collecting hood 1, the chlorine main pipe 5, and the chlorine branch pipe module 3, each of the chlorine branch pipe modules 3 comprises a first pneumatic valve 2.1 and a second pneumatic valve 2.2, the opening and closing states of the first pneumatic valve 2.1 and the second pneumatic valve 2.2 are controlled by a control unit, and the input end of the control unit is electrically connected to a detection module.

[0027] In the present embodiment, the device for automatically switching chlorine comprises a gas collecting hood 1, a chlorine branch pipe module 3, and a first pneumatic valve 2.1 and a second pneumatic valve 2.2 in communication with a magnesium chloride electrolysis device, compared with the prior art, the device can set the adjustment signal according to the actual demand, convert the adjustment signal into the displacement of the pneumatic actuator, and open or close the first pneumatic valve 2.1 and the second pneumatic valve 2.2.

[0028] Specifically, the control unit is a DCS control system, and two operation modes of "operation mode" and "switching mode" are set; in the "operation mode", the first pneumatic valve 2.1 and the second pneumatic valve 2.2 are both opened; and in the "switching mode", one of the two pneumatic valves is closed.

[0029] It should be noted that when the target system in the program of the DCS control system is opened, the "switching mode" corresponding to the chlorine branch pipe currently used is opened, the first pneumatic valve 2.1 or the second pneumatic valve 2.2 is closed, the closing of the first chlorine branch pipe 3.1 or the second chlorine branch pipe 3.2 (the closing of the chlorine branch pipe currently used) is completed, the "switching mode" corresponding to the chlorine branch pipe used next is opened when there is no gas passing through the system, and the first pneumatic valve 2.1 or the second pneumatic valve 2.2 is opened to allow the gas to pass through.

[0030] As Figure 1As shown, the gas collecting hood 1 in communication with the magnesium chloride electrolysis device is used to collect chlorine gas, the gas collecting hood 1 is in communication with the chlorine gas main pipe 5 for chlorine gas passing, the chlorine gas main pipe 5 is connected with the first chlorine gas branch pipe 3.1 and the second chlorine gas branch pipe 3.2, the first pneumatic valve 2.1 is arranged on the first chlorine gas branch pipe 3.1, the second pneumatic valve 2.2 is arranged on the second chlorine gas branch pipe 3.2, the first pneumatic valve 2.1 is used to control the opening and closing of the first chlorine gas branch pipe 3.1, the second pneumatic valve 2.2 is used to control the opening and closing of the second chlorine gas branch pipe 3.2, the chlorine gas main pipe module includes a first main pipe and a second main pipe, the first chlorine gas branch pipe 3.1 is connected with the first main pipe in the chlorine gas main pipe module 4, and the second chlorine gas branch pipe 3.2 is connected with the second main pipe in the chlorine gas main pipe module 4, which is used to converge chlorine gas.

[0031] Further, the chlorine gas branch pipe module 3 includes the first chlorine gas branch pipe 3.1 and the second chlorine gas branch pipe 3.2, the first pneumatic valve 2.1 is installed at the upper end of the first chlorine gas branch pipe 3.1, and the second pneumatic valve 2.2 is installed at the upper end of the second chlorine gas branch pipe 3.2.

[0032] In this embodiment, the first pneumatic valve 2.1 can be installed at the upper end, the middle, the lower end or other positions of the first chlorine gas branch pipe 3.1.

[0033] Further, the first pneumatic valve 2.1 and the second pneumatic valve 2.2 have an interlocking function.

[0034] In this embodiment, the first pneumatic valve 2.1 and the second pneumatic valve 2.2 can be opened at the same time, but cannot be closed at the same time, and one of them must be in an open state. For example, when switching from the first chlorine gas branch pipe 3.1 to the second chlorine gas branch pipe 3.2, after starting the DCS program through the control unit, the “switching mode” (corresponding to the first chlorine gas branch pipe 3.1) is opened through the control unit, the first pneumatic valve 2.1 is closed, the closing of the first chlorine gas branch pipe 3.1 is completed, and no chlorine gas passes through the first chlorine gas branch pipe 3.1; then, the “switching mode” (corresponding to the second chlorine gas branch pipe 3.2) is opened through the control unit, the second pneumatic valve 2.2 is opened, and chlorine gas is allowed to pass. At this time, the operation of automatically switching chlorine gas in the magnesium chloride electrolysis device is completed, and the switching from the second chlorine gas branch pipe 3.2 to the chlorine gas branch pipe system is the same.

[0035] Further, the regulating valve is a pneumatic piston type half ball valve. The air supply pressure is 0.2-0.4 Mpa.

[0036] Further, the control unit is a DCS control unit.

[0037] In the embodiment, the DCS control unit is a microprocessor-based distributed control system, which integrates computer technology, communication technology, control technology and graphic display technology, adopts the design idea of distributed control, centralized operation and hierarchical management, disperses the control function to each control unit, and realizes real-time monitoring, control and optimization of the production process.

[0038] Further, the control unit comprises a storage module and a display module, the storage module stores state information of the first pneumatic valve and the second pneumatic valve, and the display module displays the opening and closing states of the first pneumatic valve and the second pneumatic valve.

[0039] In the embodiment, the device is provided with a host, and the host is provided with a display screen, the display screen displays the opening and closing states of the first pneumatic valve 2.1 and the second pneumatic valve 2.2, and the storage module stores state information of the first pneumatic valve 2.1 and the second pneumatic valve 2.2, such as opening and closing time and closing time.

[0040] Further, the output end of the control unit controls the opening and closing of the first pneumatic valve 2.1 and the second pneumatic valve 2.2, and the input end of the control unit is electrically connected with a detection module.

[0041] Further, the detection module is a touch control unit.

[0042] In the embodiment, the touch control unit is located on the touch display screen, the touch control unit inputs an adjustment signal, and the control instruction is transmitted to the control unit through the adjustment signal.

[0043] In addition, the detection module can also be a chlorine concentration detector, the chlorine concentration detector is located in the gas collecting hood 1, and the output end of the chlorine concentration detector is electrically connected with the input end of the control unit.

[0044] In the embodiment, the chlorine concentration detector sends the detected chlorine concentration to the control unit in real time, a corresponding chlorine concentration threshold is set, when the chlorine concentration detector detects that the chlorine concentration reaches the corresponding threshold, at this time, the chlorine concentration is too large, the control unit controls the opening and closing of the first pneumatic valve 2.1 and the second pneumatic valve 2.2 at the same time, and when the corresponding threshold is not reached, only one of the first pneumatic valve 2.1 and the second pneumatic valve 2.2 can be opened.

[0045] In addition, the detection module can also be a chlorine concentration monitor, the chlorine concentration monitor is located outside the chlorine branch pipe module 3 (the first chlorine branch pipe 3.1 and the second chlorine branch pipe 3.2), and the output end of the chlorine concentration monitor is electrically connected with the input end of the control unit.

[0046] In the embodiment, the purpose of setting the chlorine concentration monitor is to monitor whether the first chlorine branch pipe 3.1 and the second chlorine branch pipe 3.2 have gas leakage in real time. If one of the first chlorine branch pipe 3.1 and the second chlorine branch pipe 3.2 has chlorine leakage, the control unit controls the corresponding pneumatic valve to be forced to close, and the pneumatic valve of the other standby chlorine branch pipe is opened.

[0047] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0048] It should be understood that the present application is not limited to the above described and can be variously modified and changed without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A device for automatic switching of chlorine, characterized in that, The application relates to a chlorine gas transmission device, which comprises a gas collecting cover (1) connected with a chlorine gas main pipe (5), the chlorine gas main pipe (5) is connected with a chlorine gas branch pipe module (3), chlorine gas is transmitted to a chlorine gas main pipe module (4) through the gas collecting cover (1), the chlorine gas main pipe (5) and the chlorine gas branch pipe module (3) in sequence, each chlorine gas branch pipe module (3) comprises a first pneumatic valve (2.1) and a second pneumatic valve (2.2), the opening and closing states of the first pneumatic valve (2.1) and the second pneumatic valve (2.2) are controlled by a control unit, and the input end of the control unit is electrically connected with a detection module.

2. A device for automatic switching of chlorine as claimed in claim 1 wherein, The chlorine gas branch pipe module (3) comprises a first chlorine gas branch pipe (3.1) and a second chlorine gas branch pipe (3.2), the first pneumatic valve (2.1) is arranged at the upper end of the first chlorine gas branch pipe (3.1), and the second pneumatic valve (2.2) is arranged at the upper end of the second chlorine gas branch pipe (3.2).

3. A device for automatic switching of chlorine as claimed in claim 1 wherein, The first pneumatic valve (2.1) and the second pneumatic valve (2.2) have an interlocking function.

4. A device for automatic switching of chlorine as claimed in claim 1 wherein, The first pneumatic valve (2.1) and the second pneumatic valve (2.2) are both pneumatic piston type half ball valves.

5. A device for automatic switching of chlorine as claimed in claim 1 wherein, The control unit comprises: a storage module for storing state information of the first pneumatic valve (2.1) and the second pneumatic valve (2.2); a display module for displaying the opening and closing states of the first pneumatic valve (2.1) and the second pneumatic valve (2.2).

6. A device for automatic switching of chlorine as claimed in claim 1 wherein, The output end of the control unit controls the opening and closing of the first pneumatic valve (2.1) and the second pneumatic valve (2.2) respectively.

7. A device for automatic switching of chlorine as claimed in claim 1 wherein, The detection module is a touch control unit.

8. A device for automatic switching of chlorine as claimed in claim 1 wherein, The detection module is a chlorine gas concentration detector, the chlorine gas concentration detector is arranged in the gas collecting cover (1), and the output end of the chlorine gas concentration detector is electrically connected with the input end of the control unit.

9. A device for automatic switching of chlorine as claimed in claim 1 wherein, The detection module is a chlorine gas concentration monitor, the chlorine gas concentration monitor is arranged outside the chlorine gas branch pipe module (3), and the output end of the chlorine gas concentration monitor is electrically connected with the input end of the control unit.

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