Explosion-proof early warning device for printing workshop

Abstract

The utility model discloses an explosion-proof early warning device for a printing workshop, which comprises a monitoring pipe section, a limiting ring is fixedly mounted at one end of the monitoring pipe section, a first connecting thread is arranged on the inner wall of one end of an air outlet in the monitoring pipe section, an inner mounting pipe is arranged at one end of the air outlet, and a second connecting thread is arranged at the other end of the air outlet. And the outer wall of the inner mounting pipe is provided with a second connecting thread matched with the first connecting thread, a combustible gas monitoring mechanism is mounted at the top in the inner mounting pipe, and the combustible gas monitoring mechanism is connected with an audible and visual alarm extending out of the monitoring pipe section through a wire. The combustible gas monitoring device is simple in structure and convenient to install and use, the inner dust filtering structure and the combustible gas monitoring mechanism are both detachable installation structures, maintenance and replacement are convenient, the inner dust filtering structure can filter floating dust, the problem that the monitoring probe is covered with the dust, and consequently monitoring fails is solved, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas monitoring, in particular to an explosion-proof early warning device for a printing workshop. Background Art

[0002] The printing industry has a wide range of applications, mainly including paper printing, plastic packaging printing, etc. During the packaging printing process, a large amount of mixed solvent waste gas will be emitted as the ink dries, and a large amount of ethyl acetate and other waste gases will be emitted during the lamination process. Organic waste gas is toxic and harmful. If the human body is exposed to or inhaled for a long time, it will cause serious harm to the nervous system and hematopoietic function. At the same time, when the concentration of organic gas reaches a certain standard, it is easy to explode.

[0003] Therefore, ventilation ducts are generally provided in the workshop for ventilation. However, only ventilation ducts are far from enough for the printing workshop, and the gas concentration cannot be truly monitored, which may easily lead to safety hazards.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an explosion-proof early warning device for a printing workshop.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an explosion-proof early warning device for a printing workshop, including a monitoring pipe section, a limiting ring is fixedly installed at one end of the monitoring pipe section, an air inlet and an air outlet are respectively arranged at both ends of the monitoring pipe section, an internal dust filtering structure is installed at one end of the air inlet, positioning blocks are symmetrically arranged on the inner wall of the monitoring pipe section, a connecting thread 1 is arranged on the inner wall of one end of the monitoring pipe section located at the air outlet, an inner mounting tube is arranged at one end of the air outlet, a connecting thread 2 matching the connecting thread 1 is arranged on the outer wall of the inner mounting tube, a combustible gas monitoring mechanism is installed on the top of the inner mounting tube, and an audible and visual alarm extending to the outside of the monitoring pipe section is connected to the combustible gas monitoring mechanism through a wire.

[0007] Preferably, the internal dust filtering structure includes an inner sleeve, in which support ring 1, support ring 2 and support ring 3 are respectively arranged, wherein an outer protective net is installed in support ring 1, dust filter net 1 is installed in support ring 2, and dust filter net 2 is installed in support ring 3.

[0008] Preferably, an adsorption magnet is provided at the bottom of the inner wall of the inner sleeve, the support ring three is adsorbed by the adsorption magnet, and a connecting rod is connected between the support ring one, the support ring two and the support ring three.

[0009] Preferably, the combustible gas monitoring mechanism includes an outer shell, the top of the outer shell is integrally connected with an arc-shaped surface that fits the inner wall of the inner mounting tube, the outer shell is fixedly mounted on a partition, an insulating layer is provided on the partition, a battery is mounted on the insulating layer, and a charging interface is provided on the battery.

[0010] Preferably, an integrated circuit board is installed at the bottom of the partition, and a main controller is integrated on the integrated circuit board. The main controller is respectively connected to a data transmission sensor and a signal converter. A combustible gas detector connected to the signal converter is provided at the bottom of the outer shell, and the data transmission sensor is connected to an external display screen.

[0011] Preferably, four groups of limiting baffles are evenly and fixedly connected to the outside of one end of the inner dust filtering structure located at the air inlet, and four groups of limiting rubber protrusions are symmetrically provided on the side wall of the limiting ring located at the inner dust filtering structure.

[0012] Preferably, four groups of mounting plates are fixedly mounted on the limiting ring, and positioning threaded holes are mounted on the mounting plates.

[0013] Preferably, the inner wall of the monitoring pipe section, the inner wall of the inner mounting pipe and the outer wall of the limiting ring are all sprayed with an insulating coating.

[0014] The utility model provides an explosion-proof early warning device for a printing workshop, and the beneficial effects are as follows:

[0015] By setting a limiting ring on the monitoring pipe section, the monitoring pipe section is first inserted into the exhaust port of the workshop ventilation duct and positioned by using the limiting ring. The dust filtering structure set in the air inlet of the monitoring pipe section is positioned by using a positioning block, so as to filter floating dust and prevent dust from covering the monitoring probe and causing monitoring failure, thereby increasing safety. By cooperating with connecting thread one and connecting thread two, the inner mounting tube is installed at the air outlet position of the monitoring pipe section. The combustible gas monitoring mechanism set on the top of the inner mounting tube can monitor the gas concentration in real time. When the combustible gas concentration exceeds the preset alarm value, the sound and light alarm sends out an sound and light alarm to prevent organic vapor from accumulating to the explosion limit. The device of the present application has a simple structure and is easy to install and use. The inner dust filtering structure and the combustible gas monitoring mechanism are both detachable mounting structures, which are convenient for maintenance and replacement. The inner dust filtering structure can filter floating dust and prevent dust from covering the monitoring probe and causing monitoring failure, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view of an explosion-proof warning device for a printing workshop according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of an explosion-proof warning device for a printing workshop according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of an internal dust filtering structure in an explosion-proof early warning device of a printing workshop according to an embodiment of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the structure of a combustible gas monitoring mechanism in an explosion-proof early warning device of a printing workshop according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Monitoring pipe section; 2. Limiting ring; 3. Internal dust filtering structure; 4. Wire; 5. Sound and light alarm; 6. Positioning block; 7. Connection thread one; 8. Internal mounting tube; 9. Connection thread two; 10. Combustible gas monitoring mechanism; 11. Inner sleeve; 12. Support ring one; 13. Support ring two; 14. Support ring three; 15. Adsorption magnet; 16. External protective net; 17. Dust filter one; 18. Dust filter two; 19. Connecting rod; 20. External shell; 21. Arc surface; 22. Partition; 23. Insulating layer; 24. Battery; 25. Charging port; 26. Combustible gas detector; 27. Integrated circuit board; 28. Signal converter; 29. ​​Main controller; 30. Data transmission sensor; 31. Limit baffle; 32. Limit rubber protrusion; 33. Mounting sheet; 34. Positioning thread hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4According to an embodiment of the utility model, an explosion-proof early warning device for a printing workshop comprises a monitoring pipe section 1, one end of which is fixedly installed with a limiting ring 2. By means of the limiting ring 2 arranged on the monitoring pipe section 1, the monitoring pipe section 1 is first inserted into the exhaust port of the workshop ventilation duct, and is positioned by means of the limiting ring 2. An air inlet and an air outlet are respectively arranged at both ends of the monitoring pipe section 1, and an internal dust filtering structure 3 is installed at one end of the air inlet. Positioning blocks 6 are symmetrically arranged on the inner wall of the monitoring pipe section 1. The internal dust filtering structure 3 arranged in the air inlet of the monitoring pipe section 1 is positioned by means of the positioning blocks 6, and can filter floating dust to prevent dust from covering the monitoring probe and causing monitoring failure, thereby increasing safety. A connecting thread 7 is arranged on the inner wall of one end of the monitoring pipe section 1 located at the air outlet, and an internal mounting tube 8 is arranged at one end of the air outlet, and an outer wall of the internal mounting tube 8 is provided with a thread connected to the connecting thread A connecting thread 29 matching the thread 17 is provided, and a combustible gas monitoring mechanism 10 is installed on the top of the inner mounting tube 8. The combustible gas monitoring mechanism 10 is connected to a sound and light alarm 5 extending to the outside of the monitoring tube section 1 through a wire 4. The inner mounting tube 8 is installed at the air outlet position of the monitoring tube section 1 through the cooperation of the connecting thread 17 and the connecting thread 29. The combustible gas monitoring mechanism 10 arranged on the top of the inner mounting tube 8 can monitor the gas concentration in real time. When the combustible gas concentration exceeds the preset alarm value, the sound and light alarm 5 sends out a sound and light alarm to prevent organic vapor from gathering to reach the explosion limit. The device of the present application has a simple structure and is easy to install and use. The internal dust filtering structure 3 and the combustible gas monitoring mechanism 10 are both detachable mounting structures, which are convenient for maintenance and replacement, and the internal dust filtering structure 3 can filter floating dust to prevent dust from covering the monitoring probe and causing monitoring failure, thereby increasing safety.

[0025] In one embodiment, please refer to the attached manual. Figure 3 As shown, the inner dust filtering structure 3 includes an inner sleeve 11, in which a support ring 12, a support ring 2 13 and a support ring 3 14 are respectively arranged, wherein an outer protective net 16 is installed in the support ring 12, a dust filter net 17 is installed in the support ring 2 13, and a dust filter net 2 18 is installed in the support ring 3 14. An adsorption magnet 15 is arranged at the bottom of the inner wall of the inner sleeve 11, and the support ring 3 14 is adsorbed by the adsorption magnet 15, and a connecting rod 19 is connected between the support ring 12, the support ring 2 13 and the support ring 3 14. The outer protective net 16 plays a protective role, and the dust filter net 17 and the dust filter net 2 18 are provided to filter the dust in the air, and at the same time, it will not affect the concentration monitoring of the combustible gas. The connecting rod 19 connects the support ring 12, the support ring 2 13 and the support ring 3 14 to realize the overall disassembly and cleaning work.

[0026] In one embodiment, please refer to the attached manual. Figure 4 As shown, the combustible gas monitoring mechanism 10 includes an outer shell 20, the top of the outer shell 20 is integrally connected with an arc surface 21 that fits the inner wall of the inner mounting tube 8, the outer shell 20 is fixedly installed on a partition 22, an insulating layer 23 is provided on the partition 22, a battery 24 is installed on the insulating layer 23, a charging interface 25 is provided on the battery 24, an integrated circuit board 27 is installed at the bottom of the partition 22, a main controller 29 is integrated on the integrated circuit board 27, the main controller 29 is respectively connected to a data transmission sensor 30 and a signal converter 28, a combustible gas detector 26 connected to the signal converter 28 is provided at the bottom of the outer shell 20, and the data transmission sensor 30 is connected to an external display screen. The battery 24 is used to power the equipment, the insulating layer 23 has insulating properties, the combustible gas detector 26 monitors the concentration of combustible gas, and the absorbed gas concentration signal is converted into an electrical signal through the signal converter 28 and sent to the main controller 29. The main controller 29 then controls the data transmission sensor 30 to transmit it to the outside world and display it on the display screen.

[0027] In one embodiment, please refer to the attached manual. Figure 1-2 As shown, the inner dust filter structure 3 is evenly and fixedly connected to one end of the air inlet with four groups of limit baffles 31, the side wall of the limit ring 2 located at the inner dust filter structure 3 is symmetrically provided with four groups of limit rubber protrusions 32, the limit ring 2 is fixedly installed with four groups of mounting pieces 33, the mounting pieces 33 are installed with positioning threaded holes 34, and the inner wall of the monitoring pipe section 1, the inner wall of the inner mounting pipe 8 and the outer wall of the limit ring 2 are all sprayed with insulating coating. The set limit baffle 31 cooperates with the limit rubber protrusion 32 to position the inner dust filter structure 3, the mounting piece 33 set on the limit ring 2 cooperates with the positioning threaded holes 34, which facilitates the installation and fixation of the monitoring pipe section 1, and the set insulating coating increases its insulation.

[0028] In actual application, by setting the limiting ring 2 on the monitoring pipe section 1, the monitoring pipe section 1 is first inserted into the exhaust port of the workshop ventilation duct, and the limiting ring 2 is used to position it. The internal dust filtering structure 3 set in the air inlet of the monitoring pipe section 1 is positioned by the positioning block 6, which can filter the floating dust to prevent the dust from covering the monitoring probe and causing the monitoring failure, thereby increasing the safety. By matching the connecting thread 1 7 and the connecting thread 2 9, the internal mounting tube 8 is installed at the air outlet position of the monitoring pipe section 1. The combustible gas monitoring mechanism 10 set at the top of the internal mounting tube 8 can monitor the gas concentration in real time. When the combustible gas concentration exceeds the preset alarm value, the sound and light alarm 5 sends out an sound and light alarm to prevent the organic vapor from gathering and reaching the explosion limit. The device of the present application has a simple structure and is easy to install and use. The internal dust filtering structure 3 and the combustible gas monitoring mechanism 10 are both detachable mounting structures, which are convenient for maintenance and replacement, and the internal dust filtering structure 3 can filter the floating dust to prevent the dust from covering the monitoring probe and causing the monitoring failure, thereby increasing the safety.

[0029] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An explosion-proof warning device for a printing workshop, characterized in that: The monitoring pipe section (1) comprises a monitoring pipe section (1), one end of which is fixedly mounted with a limit ring (2), two ends of which are respectively provided with an air inlet and an air outlet, one end of which is mounted with an internal dust filtering structure (3), the inner wall of which is symmetrically provided with positioning blocks (6), the inner wall of which is located at one end of the air outlet and provided with a connecting thread (7), one end of which is provided with an inner mounting tube (8), the outer wall of which is provided with a connecting thread (9) matching the connecting thread (7), a combustible gas monitoring mechanism (10) being mounted on the top of the inner mounting tube (8), and the combustible gas monitoring mechanism (10) being connected to an audible and visual alarm (5) extending to the outside of the monitoring pipe section (1) via a wire (4).

2. The explosion-proof warning device for a printing workshop according to claim 1, characterized in that: The inner dust filtering structure (3) comprises an inner sleeve (11), wherein a support ring 1 (12), a support ring 2 (13) and a support ring 3 (14) are respectively arranged in the inner sleeve (11), wherein an outer protective net (16) is installed in the support ring 1 (12), a dust filter net 1 (17) is installed in the support ring 2 (13), and a dust filter net 2 (18) is installed in the support ring 3 (14).

3. The explosion-proof warning device for a printing workshop according to claim 2, characterized in that: An adsorption magnet (15) is provided at the bottom of the inner wall of the inner sleeve (11), the support ring three (14) is adsorbed by the adsorption magnet (15), and a connecting rod (19) is connected between the support ring one (12), the support ring two (13) and the support ring three (14).

4. The explosion-proof warning device for a printing workshop according to claim 3, characterized in that: The combustible gas monitoring mechanism (10) comprises an outer shell (20), the top of the outer shell (20) is integrally connected with an arc-shaped surface (21) that fits the inner wall of the inner mounting tube (8), the outer shell (20) is fixedly mounted on a partition (22), an insulating layer (23) is provided on the partition (22), a storage battery (24) is installed on the insulating layer (23), and a charging interface (25) is provided on the storage battery (24).

5. The explosion-proof warning device for a printing workshop according to claim 4, characterized in that: An integrated circuit board (27) is installed at the bottom of the partition (22), and a main controller (29) is integrated on the integrated circuit board (27). The main controller (29) is connected to a data transmission sensor (30) and a signal converter (28) respectively. A combustible gas detector (26) connected to the signal converter (28) is provided at the bottom of the outer shell (20), and the data transmission sensor (30) is connected to an external display screen.

6. The explosion-proof warning device for a printing workshop according to claim 5, characterized in that: The inner dust filtering structure (3) is evenly and fixedly connected to the outside of one end of the air inlet with four groups of limit baffles (31), and the limit ring (2) is symmetrically provided with four groups of limit rubber protrusions (32) on the side wall of the inner dust filtering structure (3).

7. The explosion-proof warning device for a printing workshop according to claim 6, characterized in that: Four groups of mounting plates (33) are fixedly mounted on the limiting ring (2), and positioning threaded holes (34) are mounted on the mounting plates (33).

8. The explosion-proof warning device for a printing workshop according to claim 7, characterized in that: The inner wall of the monitoring pipe section (1), the inner wall of the inner mounting pipe (8) and the outer wall of the limiting ring (2) are all sprayed with an insulating coating.

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