Leakage alarm device for chemical production

Abstract

The utility model provides a leakage alarm device for chemical industry production, which comprises a first collecting cover, a chemical industry pipeline main body, a second collecting cover, an internal thread cylinder and a corrugated telescopic pipe, a first rubber sealing ring penetrates through the middle of the left end of the first collecting cover, a step ring is longitudinally fixed at the right end in the first collecting cover, and a sealing ring is fixed in the step ring; according to the chemical gas leakage alarm device, the problems that when part of existing leakage alarm devices are used, an alarm can only be used for alarming whether leakage occurs at the joint of a chemical pipeline or not, leakage parts cannot be protected, and consequently chemical gas leakage cannot be stopped are solved. According to the chemical pipeline joint leakage alarm device, leakage chemical gas at the chemical pipeline joint can be alarmed and stored at the same time, so that surrounding chemical workers are reminded, and the surrounding chemical workers can conveniently process the leaked and collected chemical gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to a leak alarm device for chemical production belongs to the technical field of chemical production auxiliary equipment. BACKGROUND

[0002] The leak safety alarm device for chemical production equipment is alarm equipment for detecting whether the gas leakage exists at the joint position of the gas guide pipe of the chemical production equipment, and the chemical production technology is the abbreviation of "chemical process", "chemical industry" and "chemical engineering". The technology using chemical methods to change the composition, structure or synthesize new substances belongs to chemical production technology, that is, chemical process, and the obtained product is called chemical or chemical product. Initially, the production of such products was a handicraft workshop, which later evolved into a factory and gradually formed a specific production industry, that is, the chemical industry.

[0003] However, part of the existing leak alarm device can only alarm whether the leakage occurs at the chemical pipeline interface by using the alarm when in use, cannot protect the leakage position, and leads to that the chemical gas leakage cannot be stopped. Therefore, there is an urgent need for a leak alarm device for chemical production to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a leak alarm device for chemical production to solve the problems in the background art. The chemical gas leakage alarm structure and the temporary storage and collection structure are combined to alarm and store the chemical gas leaked from the chemical pipeline interface.

[0005] In order to achieve the above purpose, the utility model is implemented by the following technical scheme: a leak alarm device for chemical production, comprising a first collection cover, a chemical pipeline main body, a second collection cover, an internal thread cylinder and a corrugated expansion pipe, a first rubber sealing ring is penetrated and installed in the middle of the left end of the first collection cover, a stepped ring is fixed longitudinally in the right end of the first collection cover, a sealing ring is fixed in the stepped ring, the second collection cover is screwed and installed at the right end of the first collection cover through the thread principle, a second rubber sealing ring is penetrated and installed in the middle of the right side of the second collection cover, the chemical pipeline main body is penetrated and installed between the first collection cover and the second collection cover, a PLC controller is installed at the front end of the first collection cover, a gas sensor is installed at the lower side of the inside of the first collection cover, an external screw pipe opening is integrally arranged at the upper end of the first collection cover, and the corrugated expansion pipe is connected to the upper end of the external screw pipe opening, a sealing top plate is arranged at the upper end of the corrugated expansion pipe, the internal thread cylinder is fixed at the external screw pipe opening through the thread principle, a fixed top cover is installed at the upper end of the internal thread cylinder through the connecting strip, a control switch is installed at the lower end of the left side of the fixed top cover, an external connecting pipe is penetrated and installed in the middle of the fixed top cover, and an alarm is installed at the front end of the internal thread cylinder.

[0006] Further, the second collecting cover left end is clamped in the step ring, and abuts against the sealing ring.

[0007] Further, the chemical pipeline body left and right sides are respectively sealed and connected with the first rubber sealing ring and the second rubber sealing ring.

[0008] Further, the other end of the external connecting pipe is provided with an electronic valve, and the electronic valve is connected with the control switch through wires.

[0009] Further, the alarm, the PLC controller and the gas sensor are connected through wires.

[0010] Further, the lower end of the external connecting pipe is connected with the corrugated expansion pipe through the corrugated air pipe, and the right end of the external connecting pipe is connected with external equipment.

[0011] The beneficial effects of the utility model are as follows: the utility model discloses a leakage alarm device for chemical production, and the first collecting cover, the first rubber sealing ring, the gas sensor, the PLC controller, the second collecting cover, the second rubber sealing ring, the internal thread cylinder, the alarm, the corrugated expansion pipe, the sealing top plate, the corrugated air pipe, the external connecting pipe and the electronic valve are added, and the design improvement and actual use show that the device has reasonable structure, and a combined structure is designed, the chemical gas leakage alarm structure and the temporary storage collecting structure can be combined, the chemical gas leaked from the chemical pipeline interface can be alarmed and stored, thereby reminding surrounding chemical workers, and the surrounding chemical workers can conveniently process the collected chemical gas. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0013] Fig. 1 It is whole structure perspective view of the utility model discloses a leakage alarm device for chemical production;

[0014] Fig. 2 It is cross section schematic view of the utility model discloses a leakage alarm device for chemical production;

[0015] Fig. 3 It is first collecting cover inside schematic view of the utility model discloses a leakage alarm device for chemical production;

[0016] In the figure: 1 - the first collecting cover, 2 - the first rubber sealing ring, 3 - the chemical pipeline main body, 4 - the gas sensor, 5 - the PLC controller, 6 - the step ring, 7 - the sealing ring, 8 - the second collecting cover, 9 - the second rubber sealing ring, 10 - the inner threaded cylinder, 11 - the alarm, 12 - the connecting strip rod, 13 - the fixed top cover, 14 - the control switch, 15 - the corrugated expansion pipe, 16 - the sealing top plate, 17 - the corrugated air pipe, 18 - the external connecting pipe, 19 - the electronic valve. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0018] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a leakage alarm device for chemical production, including first collecting cover 1, chemical pipeline main body 3, second collecting cover 8, inner threaded cylinder 10 and corrugated expansion pipe 15, first collecting cover 1 left end middle is equipped with the first rubber sealing ring 2, and first collecting cover 1 inside right end is vertically fixed with step ring 6, and step ring 6 is fixed with sealing ring 7, and second collecting cover 8 is installed in the right end of first collecting cover 1 by screw principle, and second collecting cover 8 right side middle is equipped with the second rubber sealing ring 9, and chemical pipeline main body 3 is installed between first collecting cover 1 and second collecting cover 8, and first collecting cover 1 front end is equipped with PLC controller 5, and first collecting cover 1 inside lower side is equipped with gas sensor 4, and first collecting cover 1 upper end is integrally provided with outer screw pipe mouth, and outer screw pipe mouth upper end is connected with corrugated expansion pipe 15, and corrugated expansion pipe 15 upper end is provided with sealing top plate 16, and inner threaded cylinder 10 is fixed at outer screw pipe mouth by screw principle, and inner threaded cylinder 10 upper end is equipped with fixed top cover 13 by connecting strip rod 12, and fixed top cover 13 lower end left side is equipped with control switch 14, and fixed top cover 13 middle is equipped with external connecting pipe 18, and inner threaded cylinder 10 front end is equipped with alarm 11, this design solves the problem that part of existing leakage alarm device can only alarm whether leakage occurs at chemical pipeline interface by alarm when using, cannot protect leakage position, leading to chemical gas leakage cannot be stopped.

[0019] As a first embodiment of the present invention, the left end of the second collection hood 8 is clamped in the step ring 6 and abuts against the sealing ring 7. The added step ring 6 and sealing ring 7 can improve the sealing performance of the second collection hood 8 installed on the right side of the first collection hood 1. The left and right sides of the chemical pipeline body 3 are sealed with the first rubber sealing ring 2 and the second rubber sealing ring 9, respectively. The added first rubber sealing ring 2 and the second rubber sealing ring 9 can fill and block the gaps between the left and right sides of the chemical pipeline body 3 and the first collection hood 1 and the second collection hood 8, thereby ensuring the sealing performance between the first collection hood 1 and the second collection hood 8.

[0020] An electronic valve 19 is installed at the other end of the external pipe 18, and the electronic valve 19 is connected to the control switch 14 via a wire. When the added control switch 14 is clicked by the upward-moving sealing top plate 16, the electronic valve 19 is controlled to open, so that the leaked chemical gas is transmitted to the external device through the external pipe 18. The alarm 11, PLC controller 5 and gas sensor 4 are connected by wires. When the added gas sensor 4 detects the leaked chemical gas, it transmits the information to the PLC controller 5, so that the PLC controller 5 controls the alarm 11 to sound an alarm. The lower end of the external pipe 18 is connected to the bellows telescopic tube 15 via the corrugated ventilation tube 17, and the right end of the external pipe 18 is connected to the external device. The added bellows ventilation tube 17 and the bellows telescopic tube 15 facilitate the external pipe 18 to communicate with the inside of the first collection cover 1.

[0021] As a second embodiment of the present invention: when a gas leak occurs at the interface of the chemical pipeline main body 3, the gas sensor 4 detects the leaked chemical gas and transmits the information to the PLC controller 5, so that the PLC controller 5 controls the alarm 11 to sound an alarm to remind the surrounding chemical personnel. At the same time, the chemical gas gradually fills the first collection cover 1 and the second collection cover 8, so that the air pressure in the first collection cover 1 and the second collection cover 8 increases, and pushes up the bellows 15 and the bellows ventilation pipe 17. During this process, the bellows 15 is gradually filled and expanded upward under the influence of air pressure, and temporarily stores chemical gas. At the same time, the sealing top plate 16 is driven to move upward. When the bellows 15 is extended to the maximum state, it will drive the sealing top plate 16 to move upward to contact the control switch 14, so that the control switch 14 will control the electronic valve 19 to open, and then the leaked chemical gas can be discharged to the external equipment through the external pipe 18 for processing.

[0022] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0023] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A leakage alarm device for chemical production, comprising a first collecting cover (1), a chemical pipeline body (3), a second collecting cover (8), an internally threaded cylinder (10) and a bellows expansion tube (15), characterized in that: A first rubber sealing ring (2) is installed through the middle of the left end of the first collecting cover (1); a step ring (6) is longitudinally fixed to the right end of the inside of the first collecting cover (1); a sealing ring (7) is fixed inside the step ring (6); and the second collecting cover (8) is screwed and installed on the right end of the first collecting cover (1) through the principle of threading; A second rubber sealing ring (9) is installed through the middle of the right side of the second collecting cover (8), the chemical pipeline body (3) is installed between the first collecting cover (1) and the second collecting cover (8), a PLC controller (5) is installed at the front end of the first collecting cover (1), a gas sensor (4) is installed on the lower side of the interior of the first collecting cover (1), an external screw pipe mouth is integrally provided at the upper end of the first collecting cover (1), and a corrugated telescopic tube (15) is connected to the upper end of the external screw pipe mouth, a sealing top plate (16) is provided at the upper end of the corrugated telescopic tube (15), the internal threaded barrel (10) is fixed to the external screw pipe mouth through the thread principle, a fixed top cover (13) is installed at the upper end of the internal threaded barrel (10) through a connecting rod (12), a control switch (14) is installed on the left side of the lower end of the fixed top cover (13), an external pipe (18) is installed through the middle of the fixed top cover (13), and an alarm (11) is installed at the front end of the internal threaded barrel (10).

2. A leakage alarm device for chemical production according to claim 1, characterized in that: The left end of the second collecting cover (8) is clamped in the step ring (6) and abuts against the sealing ring (7).

3. A leakage alarm device for chemical production according to claim 1, characterized in that: The left and right sides of the chemical pipeline body (3) are respectively sealedly connected to the first rubber sealing ring (2) and the second rubber sealing ring (9).

4. A leakage alarm device for chemical production according to claim 1, characterized in that: An electronic valve (19) is installed at the other end of the external pipe (18), and the electronic valve (19) is connected to the control switch (14) through a wire.

5. The leakage alarm device for chemical production according to claim 1, characterized in that: The alarm (11), the PLC controller (5) and the gas sensor (4) are connected via wires.

6. A leakage alarm device for chemical production according to claim 1, characterized in that: The lower end of the external pipe (18) is connected to the bellows telescopic pipe (15) through the bellows vent pipe (17). The right end of the external pipe (18) is connected to external equipment.

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