Chlorine leakage alarm system

Abstract

The utility model discloses a chlorine leakage alarm system, and relates to the field of fine chemical engineering. The chlorine leakage alarm system comprises a detection shell, an air inlet and an air outlet are symmetrically formed in the upper end and the lower end of the two sides of the detection shell, and the chlorine leakage alarm system further comprises a chlorine detector installed in the detection shell through a supporting rod; the fan is fixedly connected to the position, close to the air inlet, in the detection shell through a fixing bolt; in the process of monitoring whether chlorine leaks in air or not, dust can be prevented from contaminating a detection probe of the chlorine detector, the effect of monitoring whether chlorine leaks or not by the chlorine detector is better, the positions of the two filter plates can be automatically controlled to be exchanged, and the chlorine leakage detection efficiency is improved. And when the air is discharged through the air outlet, the output air can be used for reversely blowing the filter plate attached with dust and blowing away the dust attached to the filter plate, so that the automatic cleaning of the filter plate can be realized, and manual cleaning is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fine chemical industry, and specifically relates to a chlorine gas leakage alarm system. Background Art

[0002] Chlorine gas plays an important role in the production of fine chemicals. However, chlorine gas itself has properties such as oxidability, toxicity, and diffusibility. Once it leaks, it will pose a serious threat to public safety. Therefore, in the production of fine chemicals, in order to prevent human damage caused by chlorine gas leakage, it is necessary to monitor whether there is chlorine gas in the air in real time. However, when the current commonly used chlorine gas alarm monitors chlorine gas in the air for a long time, impurities in the air will affect the monitoring components, thereby reducing the monitoring effect of the chlorine gas alarm.

[0003] In the prior art, the Chinese patent application with the application number CN202020438399.2 and the name of "Chemical Industry Chlorine Gas Leakage Alarm" discloses a chemical industry chlorine gas leakage alarm, which includes a rotating frame, a main body frame, and a connecting frame fixed to the lower surface of the main body frame by bolts. A plurality of universal wheels are rotatably connected to the lower surface of the connecting frame. A control box is fixed inside the main body frame by bolts, and a monitoring box is fixed to the upper surface of the main body frame by screws. A chlorine gas alarm is fixed inside the monitoring box by screws. A plurality of mounting blocks are integrally formed on the side surface of the fixed rod, so that the chlorine gas alarm inside the monitoring box can monitor chlorine gas at various locations. At the same time, the rotating frame can be rotated and fixed to the lower surface of the universal wheel, and then the whole device can be hung upside down at a fixed location for chlorine gas monitoring through the cooperation of a plurality of mounting blocks and the fixed rod. Since the density of chlorine gas is greater than that of air, hanging the device upside down enables the chlorine gas alarm to detect chlorine gas leakage more quickly.

[0004] During the use of the above prior art, when it is necessary to clean the filter screen, it needs to be disassembled for cleaning. Although it can be disassembled relatively conveniently, it still needs to be manually or mechanically cleaned, and the cleaning efficiency needs to be further improved. In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a chlorine gas leakage alarm system that can overcome the above problems or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows: a chlorine gas leakage alarm system, including a detection housing, wherein air inlets and air outlets are symmetrically arranged at the upper and lower ends on both sides of the detection housing, and further includes: a chlorine gas detector, installed in the detection housing through a support rod; a fan, fixedly connected to the inside of the detection housing near the air inlet through a fixing bolt; a filter plate, installed outside the detection housing and located at the positions of the air inlet and the air outlet; a rotating mechanism for driving the two filter plates to rotate, installed on the detection housing and located between the air inlet and the air outlet; an audible and visual alarm, installed on the detection housing, and both the audible and visual alarm and the chlorine gas detector are coupled to a controller.

[0007] Further, the rotating mechanism includes an intrinsically safe motor, a T-shaped rod and a rotating frame. The intrinsically safe motor is fixedly connected to the detection housing and located between the two filter plates. The T-shaped rod is fixedly connected to the output end of the intrinsically safe motor. The rotating frame is installed on the T-shaped rod, and both ends of the rotating frame are fixedly connected to the two filter plates through connecting rods.

[0008] In order to facilitate the filter plate to be closely abutted against the detection housing, still further, the rotating frame is slidably connected to the T-shaped rod, and a tension spring is sleeved on the T-shaped rod. Both ends of the tension spring are fixedly connected to the rotating frame and the end of the T-shaped rod away from the intrinsically safe motor respectively.

[0009] In order to prevent the filter plate from being misaligned with the air inlet and outlet of the detection housing due to movement, still further, a circular arc-shaped protrusion is provided at the outer edge of the air inlet and outlet of the detection housing, and a circular arc-shaped clamping groove for cooperating with the circular arc-shaped protrusion is provided on the filter plate.

[0010] In order to facilitate the chlorine gas detector to fully detect the gas transported into the detection housing, further, a conical diversion cover is fixedly connected inside the detection housing between the air inlet and the chlorine gas detector, and the chlorine gas detector is located directly above the conveying port of the conical diversion cover.

[0011] In order to facilitate the removal and maintenance of the chlorine gas detector, further, a through hole is provided at the upper end of the detection housing, and a cover plate is threadedly connected to the through hole. The upper end of the support rod is fixedly connected to the cover plate.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: By the combined use of two filter plates and a rotating mechanism and other components, during the process of monitoring whether chlorine gas leaks in the air, not only can dust be prevented from contaminating the detection probe of the chlorine gas detector, making the monitoring effect of the chlorine gas detector on whether chlorine gas leaks better, but also the positions of the two filter plates can be automatically controlled to be swapped. Thus, when the air is discharged through the air outlet, the output air will backflush the filter plate attached with dust, blowing away the dust attached to the filter plate, and thus the automatic cleaning of the filter plate can be realized without manual cleaning.

[0013] The following further describes in detail the specific implementation manners of the utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the drawings:

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a schematic structure inside the detection housing of the utility model Figure 1 ;

[0017] Figure 3 is a schematic structure inside the detection housing of the utility model Figure 2 .

[0018] In the figure: 1. Detection housing; 101. Cover plate; 102. Support rod; 2. Chlorine gas detector; 201. Acousto-optic alarm; 3. Fan; 4. Conical drainage cover; 5. Filter plate; 6. Intrinsically safe motor; 601. T-shaped rod; 602. Rotating frame; 603. Tension spring. SPECIFIC IMPLEMENTATION MANNERS

[0019] To make the objectives, technical solutions and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the accompanying drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Refer to Figures 1 - 3, a chlorine gas leakage alarm system, including a detection housing 1. Both the upper and lower ends on both sides of the detection housing 1 are symmetrically provided with air inlets and air outlets. It further includes: a chlorine gas detector 2, installed in the detection housing 1 through a support rod 102; a fan 3, fixedly connected to the inside of the detection housing 1 near the air inlet through a fixing bolt; a filter plate 5, installed outside the detection housing 1 and located at the positions of the air inlet and the air outlet; a rotating mechanism for driving the two filter plates 5 to rotate, installed on the detection housing 1 and located between the air inlet and the air outlet; an audible and visual alarm 201, installed on the detection housing 1, and both the audible and visual alarm 201 and the chlorine gas detector 2 are coupled to a controller; an audible and visual alarm 201, installed on the detection housing 1, and both the audible and visual alarm 201 and the chlorine gas detector 2 are coupled to a controller.

[0022] The rotating mechanism includes an intrinsically safe motor 6, a T-shaped rod 601, and a rotating frame 602. The intrinsically safe motor 6 is fixedly connected to the detection housing 1 and located between the two filter plates 5. The T-shaped rod 601 is fixedly connected to the output end of the intrinsically safe motor 6. The rotating frame 602 is installed on the T-shaped rod 601, and both ends of the rotating frame 602 are fixedly connected to the two filter plates 5 through connecting rods.

[0023] In a chemical plant, when it is necessary to detect whether there is chlorine gas leakage in the air, at this time, the staff first transports the detection housing 1 to the side close to the chlorine gas equipment, then powers on the electrical equipment in the detection housing 1, and then starts the chlorine gas detector 2 and the fan 3 simultaneously. The fan 3 will transport the air around the chlorine gas equipment into the detection housing 1. Then the chlorine gas detector 2 can detect whether the air transported into the detection housing 1 contains chlorine gas. When the controller knows that the chlorine gas detector 2 detects that there is chlorine gas leakage in the air, at this time, the controller will start the audible and visual alarm 201 to give an alarm, thereby reminding the staff that chlorine gas has leaked, so that the staff can take corresponding measures in time to avoid casualties and losses.

[0024] By arranging filter plates 5 at both the air inlet and outlet of the detection housing 1, the air entering the detection housing 1 through the air inlet can be filtered for dust, so as to prevent dust from entering the detection housing 1 together with the air, so that the dust in the air will not contaminate the detection probe of the chlorine gas detector 2, and thus the chlorine gas detector 2 can monitor whether there is chlorine gas leakage better.

[0025] After the filter plate 5 at the air inlet intercepts the dust in the air for a certain period of time, the intrinsically safe motor 6 can be started at this time. The intrinsically safe motor 6 will drive the two filter plates 5 to rotate and exchange positions through the T-shaped rod 601, the rotating frame 602 and the connecting rod. Then, the filter plate 5 with dust attached to its surface will rotate to the air outlet of the detection housing 1. Thus, when the air is discharged through the air outlet, the output air will backflush the filter plate 5 with dust attached to it, blowing away the dust attached to the filter plate 5, thereby realizing the automatic cleaning of the filter plate 5 without manual cleaning.

[0026] It should be noted that the chlorine detector 2 and the sound and light alarm 201 in the chlorine leakage alarm system are both common known devices on the market. Their working principles and circuit connections both adopt the conventional connection methods in the existing technology and are common technical means for those skilled in the art. In addition, during actual use, the intrinsically safe motor 6 can be automatically controlled by the PCL program to work regularly, thereby realizing the automatic position exchange of the two filter plates 5.

[0027] Embodiment 2:

[0028] Refer to Figures 1 - 3 , the chlorine leakage alarm system, is basically the same as Embodiment 1. Furthermore: The rotating frame 602 is slidably connected to the T-shaped rod 601. A tension spring 603 is sleeved on the T-shaped rod 601. The two ends of the tension spring 603 are respectively fixedly connected to the rotating frame 602 and the end of the T-shaped rod 601 far from the intrinsically safe motor 6. Through the setting of the tension spring 603, the rotating frame 602 can play a role in tensioning the filter plate 5, so as to facilitate the filter plate 5 to closely abut against the detection housing 1, so that the air can only enter the detection housing 1 through the filter holes on the filter plate 5, improving the interception effect of the dust in the air.

[0029] A circular arc-shaped protrusion is provided at the outer edge of the air inlet and the air outlet of the detection housing 1. The filter plate 5 is provided with a circular arc-shaped card slot for cooperating with the circular arc-shaped protrusion. When the filter plate 5 rotates to the position of the air inlet and the air outlet of the detection housing 1, the filter plate 5 can be clamped to the air inlet and outlet of the detection housing 1 under the action of the tension spring 603, thereby playing a role in positioning the filter plate 5 and avoiding the phenomenon of misalignment between the filter plate 5 and the air inlet and outlet of the detection housing 1 due to movement, effectively improving the stability of the filter plate 5.

[0030] Embodiment 3:

[0031] Refer to Figures 1 - 3, the chlorine gas leakage alarm system is basically the same as that of Embodiment 2. Further, a conical drainage cover 4 is fixedly connected inside the detection housing 1 between the air inlet and the chlorine gas detector 2. The chlorine gas detector 2 is located directly above the delivery port of the conical drainage cover 4. Through the setting of the conical drainage cover 4, the gas drawn into the detection housing 1 by the fan 3 can be drained, so that the chlorine gas detector 2 can fully detect the gas delivered into the detection housing 1, effectively improving the accuracy of detecting whether there is chlorine gas in the air.

[0032] A through hole is opened at the upper end of the detection housing 1, and a cover plate 101 is threadedly connected at the through hole. The upper end of the support rod 102 is fixedly connected to the cover plate 101. By threadedly connecting the cover plate 101 to the detection housing 1, when it is necessary to detect and maintain the chlorine gas detector 2, the cover plate 101 can be rotated at this time to separate the cover plate 101 from the detection housing 1. Then, the staff can hold the cover plate 101 and take out the chlorine gas detector 2 from the detection housing 1 through the support rod 102, so that it is convenient for the staff to take out and maintain the chlorine gas detector 2, providing convenience for the staff.

[0033] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention.

Claims

1. Chlorine gas leakage alarm system, characterized in that, It includes a detection housing (1), and air inlets and air outlets are symmetrically arranged at the upper and lower ends on both sides of the detection housing (1). It also includes: A chlorine detector (2), which is installed in the detection housing (1) through a support rod (102); A fan (3), which is fixedly connected to the inside of the detection housing (1) near the air inlet through a fixing bolt; A filter plate (5), which is installed outside the detection housing (1) and is located at the positions of the air inlet and the air outlet; A rotating mechanism for driving the two filter plates (5) to rotate, which is installed on the detection housing (1) and is located between the air inlet and the air outlet; An audible and visual alarm (201), which is installed on the detection housing (1), and both the audible and visual alarm (201) and the chlorine detector (2) are coupled to a controller.

2. The chlorine gas leakage alarm system according to claim 1, characterized in that, The rotating mechanism includes an intrinsically safe motor (6), a T-shaped rod (601), and a rotating frame (602). The intrinsically safe motor (6) is fixedly connected to the detection housing (1) and is located between the two filter plates (5). The T-shaped rod (601) is fixedly connected to the output end of the intrinsically safe motor (6). The rotating frame (602) is installed on the T-shaped rod (601), and both ends of the rotating frame (602) are fixedly connected to the two filter plates (5) through connecting rods.

3. The chlorine gas leakage alarm system according to claim 2, wherein The rotating frame (602) is slidably connected to the T-shaped rod (601), and a tension spring (603) is sleeved on the T-shaped rod (601). Both ends of the tension spring (603) are fixedly connected to the rotating frame (602) and the end of the T-shaped rod (601) far from the intrinsically safe motor (6).

4. The chlorine gas leakage alarm system according to claim 3, characterized in that, An arc-shaped protrusion is arranged at the outer edge of the air inlet and the air outlet of the detection housing (1), and an arc-shaped clamping groove for cooperating with the arc-shaped protrusion is arranged on the filter plate (5).

5. The chlorine gas leakage alarm system according to claim 1, characterized in that, A conical flow guide cover (4) is fixedly connected inside the detection housing (1) between the air inlet and the chlorine detector (2), and the chlorine detector (2) is located directly above the delivery port of the conical flow guide cover (4).

6. The chlorine gas leakage alarm system according to claim 1, characterized in that, A through hole is opened at the upper end of the detection housing (1), and a cover plate (101) is threadedly connected to the through hole. The upper end of the support rod (102) is fixedly connected to the cover plate (101).

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