A ventilation device for preventing gas from exceeding the limit

Abstract

The present invention provides a ventilation device for preventing gas from exceeding the limit, which belongs to the field of gas safety technology. The technical problem to be solved is to provide a ventilation device for preventing gas from exceeding the limit. The scheme adopted is: an outer shell, a cover plate, a main machine, a connecting line and a partition. Compared with the traditional ventilation device for preventing gas from exceeding the limit, the present device can keep the relay receiving the power-off meter signal when in use, and provide the two pairs of normally closed passive contacts provided by the relay to the disconnect button and the comprehensive protection respectively, and then provide the pair of normally open passive contacts provided by the relay to the pressure-free release coil, so that the overall line control is more convenient, and the overall working quality of the equipment is improved. It also uses a simple structure and the coordination of components to monitor the internal situation of the outer shell in real time, so that the operation of the internal structure of the equipment is more reliable and efficient, thereby improving the stability of the equipment during operation and extending the service life of the internal components of the equipment; the present invention is used in the field of gas.

Description

Technical Field

[0001] The present invention relates to the field of gas safety technology, and in particular to a ventilation device for preventing gas from exceeding a limit. Background Art

[0002] When gas is controlled and managed, places where local fans are needed to supply air must implement wind-power interlocks and methane-power interlocks to ensure that when the normally operating local fans stop running or the air stops, the power supply of all non-intrinsically safe electrical equipment in the air stop area can be cut off. Generally, professional gas power-off devices are used to control gas ventilation, air supply, etc. The existing gas power-off devices control the operation and stop of the fans through the opening circuit of the protection contact control switch, thereby achieving the purpose of power off. However, in the actual production process, the equipment itself often has protection device failures, poor contact or adhesion of protection contacts, which affects subsequent control and shutdown operations, resulting in unreliable gas over-limit power off, and affecting the safety and stability of the equipment itself.

[0003] Therefore, it is necessary to provide a new ventilation device that prevents gas from exceeding the limit to solve the above-mentioned technical problems. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a ventilation device that is safe, controlled, convenient and practical and can prevent gas from exceeding the limit.

[0005] The ventilation device for preventing gas from exceeding the limit provided by the present invention includes: an outer shell, a cover plate, a main machine, a connecting line and a partition. The cover plate is rotatably installed on the side of the outer shell, and a partition is fixedly installed inside the outer shell. The main machine is fixedly installed at the top of the partition inside the outer shell, and a connecting line is fixedly installed at the end of the main machine. A control device is fixedly installed on the side of the main machine inside the outer shell. The control device includes comprehensive protection, a tripping coil, a pressure-free release coil and a switch circuit breaker tripping. Comprehensive protection, a tripping coil, a pressure-free release coil and a switch circuit breaker tripping are fixedly installed on the side of the main machine inside the outer shell. The comprehensive protection is electrically connected to the tripping coil and the pressure-free release coil. The ends of the tripping coil and the pressure-free release coil are electrically connected to the switch circuit breaker tripping. An alarm device is fixedly installed at the bottom of the partition inside the outer shell, and a protective device is fixedly installed on the side of the alarm device inside the outer shell.

[0006] Preferably, a sealing plate is fixedly mounted on the side of the cover plate close to the shell to ensure the sealing between the cover plate and the shell when in use, and to prevent external water vapor from entering the interior.

[0007] Preferably, the cover plate also includes a swivel seat, a swivel rod, a swivel block, a base plate and a control panel. The swivel seat is symmetrically fixedly installed on the side of the outer shell, the swivel rod is rotatably installed inside the swivel seat, the swivel block is symmetrically fixedly installed outside the swivel rod, the base plate is fixedly installed on the end of the swivel block, and the control panel is fixedly installed inside the base plate.

[0008] Preferably, the rotating block is in an L-shape as a whole, so that the bottom plate can better fit with the opening of the shell during use, thereby ensuring the stability of the internal components.

[0009] Preferably, the control device also includes a protective shell, a power-off device and an intermediate relay. The protective shell is fixedly installed on the side of the main machine inside the shell, and the power-off device and the intermediate relay are fixedly installed inside the protective shell. The power-off device and the intermediate relay are electrically connected.

[0010] Preferably, the power cut-off device and the intermediate relay are connected using 36V power, which facilitates the connection of multiple lines during use, making the line management and control more stable and efficient.

[0011] Preferably, the alarm device includes a protective shell, a controller, an information processor, a temperature sensor, a humidity sensor and an alarm. The protective shell is fixedly installed at the bottom end of the partition inside the outer shell, and the controller, information processor, temperature sensor, humidity sensor and alarm are fixedly installed inside the protective shell. The controller, information processor, temperature sensor, humidity sensor and alarm are electrically connected to each other.

[0012] Preferably, the controller is electrically connected to the main machine, so that the main machine can be easily powered off or shut down by the controller during use.

[0013] Preferably, the protective device includes a ground block, a slide groove, a slider, a threaded groove, a threaded rod, a mounting plate and a fan. The ground block is fixedly installed on the inner wall of the outer shell, the slide groove is symmetrically opened inside the ground block, the slider is slidably installed inside the slide groove, the slider and the ground block are jointly provided with a threaded groove, the threaded rod is threadedly installed inside the thread groove, the mounting plate is fixedly installed between the sliders, and the fan is symmetrically fixedly installed inside the mounting plate.

[0014] Preferably, holes and slots are opened at equal intervals inside the partition at the top of the fan, which facilitate the flow and circulation of wind during use and better remove the water vapor inside.

[0015] Compared with related technologies, the ventilation device for preventing gas over-limit provided by the present invention has the following beneficial effects:

[0016] The present invention provides a ventilation device for preventing gas from exceeding the limit:

[0017] 1. Through the use and installation of the control device, the relay can be kept receiving the power-off instrument signal, and the two pairs of normally closed passive contacts provided by the relay can be provided to the opening button and the comprehensive protection respectively, and the pair of normally open passive contacts provided by the relay can be provided to the pressure-free release coil, making the overall circuit control more convenient, the operation of the ventilation device more stable, and the stability of the equipment during operation, which improves the overall working quality of the equipment;

[0018] 2. Through the use of protective devices and alarm devices, and the coordination of simple structures and components, the internal conditions of the casing are monitored in real time, ensuring the stability of the equipment during operation and making the operation of the internal structure of the equipment more reliable and efficient, thereby improving the stability of the equipment during operation and extending the service life of the internal components of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 One of the overall structural diagrams provided by the present invention;

[0020] Figure 2 The second schematic diagram of the overall structure provided by the present invention;

[0021] Figure 3 The third schematic diagram of the overall structure provided by the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of the cover provided by the present invention;

[0023] Figure 5 A schematic structural diagram of the control device provided by the present invention;

[0024] Figure 6 A schematic structural diagram of the alarm device provided by the present invention;

[0025] Figure 7 A schematic structural diagram of the protective device provided by the present invention;

[0026] Figure 8 This is a schematic diagram of the circuit structure of the control device provided by the present invention.

[0027] Numbers in the figure: 1. Shell; 2. Cover; 21. Rotating seat; 22. Rotating rod; 23. Rotating block; 24. Bottom plate; 25. Control panel; 3. Main machine; 4. Connecting line; 5. Partition; 6. Control device; 61. Protective shell; 62. Power-off instrument; 63. Intermediate relay; 64. Comprehensive protection; 65. Tripping coil; 66. No-pressure release coil; 67. Switch circuit breaker trip; 7. Alarm device; 71. Protective shell; 72. Controller; 73. Information processor; 74. Temperature sensor; 75. Humidity sensor; 76. Alarm; 8. Protective device; 81. Ground block; 82. Slide; 83. Slider; 84. Threaded groove; 85. Threaded rod; 86. Mounting plate; 87. Fan. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The ventilation device for preventing gas from exceeding the limit includes: a shell 1, a cover plate 2, a main machine 3, a connecting line 4 and a partition 5.

[0030] Example 1:

[0031] In the specific implementation process, Figure 1 、 Figure 2 and Figure 3 As shown, a cover plate 2 is rotatably installed on the side of the shell 1, a partition 5 is fixedly installed inside the shell 1, a main machine 3 is fixedly installed at the top of the partition 5 inside the shell 1, a connecting line 4 is fixedly installed at the end of the main machine 3, a control device 6 is fixedly installed on the side of the main machine 3 inside the shell 1, the control device 6 includes a comprehensive protection 64, a tripping coil 65, a no-pressure release coil 66 and a switch circuit breaker trip 67, and a comprehensive protection 64, a tripping coil 65, a no-pressure release coil 66 and a switch circuit breaker trip 67 are fixedly installed on the side of the main machine 3 inside the shell 1. The comprehensive protection 64 is electrically connected to the tripping coil 65 and the no-pressure release coil 66, and the ends of the tripping coil 65 and the no-pressure release coil 66 are electrically connected to the switch circuit breaker trip 67. An alarm device 7 is fixedly installed at the bottom of the partition 5 inside the shell 1, and a protective device 8 is fixedly installed on the side of the alarm device 7 inside the shell 1.

[0032] During use, the device is installed at the target position, and then the ventilation device is connected to the main machine 3 through the use of the connecting line 4 to facilitate subsequent control. The control device 6 is used to reasonably and stably manage the entire circuit of the device to control the operation and shutdown of the ventilation device. Subsequently, the alarm device 7 is used to automatically detect the internal situation of the shell 1, which is convenient for subsequent maintenance and observation. Finally, the protective device 8 is used to remove excess heat and moisture inside the device, thereby making the device more stable during use and improving the working quality of the device itself.

[0033] refer to Figure 1 As shown, a sealing plate is fixedly installed on the side of the cover plate 2 close to the shell 1 to ensure the sealing of the cover plate 2 and the shell 1 when in use, and prevent external water vapor from entering the interior.

[0034] refer to Figure 4 As shown, the cover 2 also includes a swivel seat 21, a swivel rod 22, a swivel block 23, a bottom plate 24 and a control panel 25. The swivel seat 21 is symmetrically fixedly mounted on the side of the housing 1, the swivel rod 22 is rotatably mounted inside the swivel seat 21, the swivel block 23 is symmetrically fixedly mounted outside the swivel rod 22, the bottom plate 24 is fixedly mounted on the end of the swivel block 23, and the control panel 25 is fixedly mounted inside the bottom plate 24.

[0035] refer to Figure 4 As shown, the rotating block 23 is L-shaped as a whole, so that the bottom plate 24 can better fit with the opening of the shell 1 during use, thereby ensuring the stability of the internal components.

[0036] refer to Figure 5 and Figure 8 As shown, the control device 6 also includes a protective shell 61, a power-off instrument 62 and an intermediate relay 63. The protective shell 61 is fixedly installed on the side of the main machine 3 inside the outer shell 1, and the power-off instrument 62 and the intermediate relay 63 are fixedly installed inside the protective shell 61. The power-off instrument 62 and the intermediate relay 63 are electrically connected.

[0037] During use, the normally closed point of the power-off instrument 62 is connected to the control circuit of the 36V intermediate relay 63. Under normal circumstances, the 36V intermediate relay 63 is in an energized and attracted state. In the event of gas over-limit or other faults, the normally closed point of the power-off instrument 62 is disconnected, and the intermediate relay 63 loses power and releases; after the intermediate relay 63 is released, its pair of normally closed points acts on the comprehensive protection 64, and the switch starts to report a gas over-limit fault, and its protection contacts act on the tripping coil 65 and the no-voltage release coil 66 to trip the switch circuit breaker 67 and cut off the power; after the intermediate relay 63 is released, its other pair of normally closed points directly acts on the tripping coil 65 to reliably trip the switch circuit breaker 67 and cut off the power; after the intermediate relay 63 is released, a pair of normally open points directly acts on the no-voltage release coil 66 to reliably trip the switch circuit breaker 67 and cut off the power; the power-off instrument 62 divides the fault signal into three through the intermediate relay 63, thereby achieving high reliability of gas power-off and avoiding the refusal to operate phenomenon that often occurs when relying solely on the comprehensive protection 64 to achieve gas power-off.

[0038] refer to Figure 5 As shown, the power cut-off device 62 and the intermediate relay 63 are connected using 36V power, which facilitates the connection of multiple lines during use, making the line management and control more stable and efficient.

[0039] refer to Figure 6 As shown, the alarm device 7 includes a protective shell 71, a controller 72, an information processor 73, a temperature sensor 74, a humidity sensor 75 and an alarm 76. The protective shell 71 is fixedly installed at the bottom end of the partition 5 inside the outer shell 1, and the controller 72, the information processor 73, the temperature sensor 74, the humidity sensor 75 and the alarm 76 are fixedly installed inside the protective shell 71. The controller 72, the information processor 73, the temperature sensor 74, the humidity sensor 75 and the alarm 76 are electrically connected to each other.

[0040] During use, the humidity and temperature information inside the housing 1 is collected and processed through the use of the temperature sensor 74 and the humidity sensor 75, and then the data analysis and processing are completed through the cooperation of the information processor 73 and the controller 72. Once the locking threshold is exceeded, the alarm 76 will automatically sound an alarm to remind the staff to carry out maintenance and processing.

[0041] refer to Figure 6 As shown, the controller 72 is electrically connected to the main machine 3, so that the main machine 3 can be powered off or shut down by the controller 72 during use.

[0042] refer to Figure 7As shown, the protective device 8 includes a block 81, a slide groove 82, a slider 83, a threaded groove 84, a threaded rod 85, a mounting plate 86 and a fan 87. The block 81 is fixedly installed on the inner wall of the shell 1, and the slide groove 82 is symmetrically opened inside the block 81. The slider 83 is slidably installed inside the slide groove 82. The slider 83 and the block 81 are both provided with a threaded groove 84. The threaded groove 84 is threadedly installed with a threaded rod 85. A mounting plate 86 is fixedly installed between the sliders 83, and a fan 87 is symmetrically fixed inside the mounting plate 86.

[0043] During use, the slider 83 is slid into the slide groove 82, and then the mounting plate 86 is installed and fixed through the cooperation of the threaded rod 85 and the threaded groove 84. Finally, the temperature and humidity inside the housing 1 are controlled by using the fan 87 to ensure the stability of the component operation.

[0044] refer to Figure 1 As shown, holes and slots are equidistantly provided inside the partition 5 at the top of the fan 87 to facilitate the flow and circulation of wind during use and better remove the water vapor inside.

[0045] Example 2:

[0046] refer to Figure 4 As shown, a lock is installed inside the bottom plate 24, which is convenient for locking the position of the cover plate 2 during use, thereby enhancing the stability and safety of the entire device during use.

[0047] Working principle: The ventilation device for preventing gas from exceeding the limit of the present invention is installed at the target position when in use, and then the ventilation device is connected to the main machine 3 through the use of the connecting line 4, which is convenient for subsequent control. The control device 6 is used to reasonably and stably control the circuit of the entire device to control the operation and shutdown of the ventilation device. The normally closed point of the power cut-off instrument 62 is connected to the control circuit of the 36V intermediate relay 63. Under normal circumstances, the 36V intermediate relay 63 is in an energized and attracted state. In the event of gas exceeding the limit or other faults, the 36V intermediate relay 63 is in an energized and attracted state. The normally closed point of the power-off instrument 62 is disconnected, and the intermediate relay 63 loses power and is released; after the intermediate relay 63 is released, its pair of normally closed points acts on the comprehensive protection 64, and the switch starts to report a gas over-limit fault, and its protection contacts act on the trip coil 65 and the no-pressure release coil 66 to trip the switch circuit breaker 67 and cut off the power; after the intermediate relay 63 is released, its other pair of normally closed points directly acts on the trip coil 65 to trip the switch circuit breaker 67 reliably and cut off the power; after the intermediate relay 63 is released, its pair of normally open points directly acts on the no-pressure release coil 66 to trip the switch circuit breaker 67 reliably and cut off the power The power-off instrument 62 divides the fault signal into three parts through the intermediate relay 63, thereby achieving high reliability of gas power-off and avoiding the frequent refusal to operate phenomenon when relying solely on the comprehensive protection 64 to achieve gas power-off. In addition, the alarm device 7 is subsequently used to automatically detect the internal conditions of the shell 1. The temperature sensor 74 and the humidity sensor 75 are used to collect and process the humidity and temperature information inside the shell 1. Then, the information processor 73 and the controller 72 cooperate to complete the data analysis and processing. Once the locking threshold is exceeded, the alarm 76 will automatically sound an alarm to remind the staff to carry out maintenance and processing, which is convenient for subsequent maintenance and observation. Finally, the protective device 8 is used to slide the slider 83 into the slide groove 82, and then the mounting plate 86 is installed and fixed by the cooperation of the threaded rod 85 and the threaded groove 84. Finally, the fan 87 is used to control the temperature and humidity inside the shell 1, ensure the stability of the component operation, and remove excess heat and moisture inside the equipment, thereby making the equipment more stable during use and improving the working quality of the equipment itself.

[0048] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ventilation device for preventing gas from exceeding the limit, characterized in that: include: A housing (1), a cover plate (2), a main machine (3), a connecting line (4) and a partition (5), wherein the housing (1) is rotatably mounted on the side of the cover plate (2), the housing (1) is fixedly mounted with a partition (5), the housing (1) is fixedly mounted with a main machine (3) at the top of the partition (5), the main machine (3) is fixedly mounted with a connecting line (4) at the end of the main machine (3), the housing (1) is fixedly mounted with a control device (6) at the side of the main machine (3), the control device (6) comprises a comprehensive protection (64), a tripping coil (65), a pressure-free release coil (66) and a switch circuit breaker tripping (67), the housing (1) is fixedly mounted with a comprehensive protection (64), a tripping line ... pressure-free release coil (66) and a pressure-free release coil (66) at the side of the main machine (3), the housing (1) is fixedly mounted with a pressure-free release coil (66) and a pressure-free release coil (66) at the side of the main machine (3), the housing (1) is fixedly mounted with a pressure-free release coil (66) and a pressure-free release coil (66) Coil (65), no-voltage release coil (66) and switch circuit breaker opening (67), the comprehensive protection (64) is electrically connected to the opening coil (65) and the no-voltage release coil (66), the ends of the opening coil (65) and the no-voltage release coil (66) are electrically connected to the switch circuit breaker opening (67), the inside of the housing (1) is fixedly installed with an alarm device (7) at the bottom end of the partition (5), the inside of the housing (1) is fixedly installed with a protective device (8) at the side of the alarm device (7), the control device (6) also includes a protective shell (61), a power-off instrument (62) and an intermediate relay (63), the inside of the housing (1) is fixedly installed with a protective shell (61) at the side of the main machine (3), the inside of the protective shell (61) is fixedly installed with a protective shell (61) A power-off instrument (62) and an intermediate relay (63) are fixedly installed respectively, and the power-off instrument (62) and the intermediate relay (63) are electrically connected. The alarm device (7) comprises a protective shell (71), a controller (72), an information processor (73), a temperature sensor (74), a humidity sensor (75) and an alarm (76). The protective shell (71) is fixedly installed at the bottom end of the partition (5) inside the housing (1). The controller (72), the information processor (73), the temperature sensor (74), the humidity sensor (75) and the alarm (76) are fixedly installed inside the protective shell (71). The controller (72), the information processor (73), the temperature sensor (74), the humidity sensor (75) and the alarm (76) are fixedly installed inside the protective shell (71). 5) and the alarm (76) are electrically connected to each other, the protective device (8) includes a block (81), a slide groove (82), a slider (83), a threaded groove (84), a threaded rod (85), a mounting plate (86) and a fan (87), the inner wall of the housing (1) is fixedly mounted with a block (81), the inside of the block (81) is symmetrically provided with a slide groove (82), the inside of the slide groove (82) is slidably mounted with a slider (83), the inside of the slider (83) and the block (81) are both provided with a threaded groove (84), the inside of the threaded groove (84) is threadedly mounted with a threaded rod (85), a mounting plate (86) is fixedly mounted between the sliders (83), and a fan (87) is symmetrically fixedly mounted inside the mounting plate (86).

2. The ventilation device for preventing gas from exceeding the limit according to claim 1, characterized in that: A sealing plate is fixedly mounted on the side of the cover plate (2) close to the housing (1).

3. The ventilation device for preventing gas from exceeding the limit according to claim 1, characterized in that: The cover plate (2) further comprises a rotating seat (21), a rotating rod (22), a rotating block (23), a bottom plate (24) and a control panel (25); the rotating seat (21) is symmetrically fixedly mounted on the side of the housing (1); the rotating rod (22) is rotatably mounted inside the rotating seat (21); the rotating block (23) is symmetrically fixedly mounted outside the rotating rod (22); the bottom plate (24) is fixedly mounted on the end of the rotating block (23); and the control panel (25) is fixedly mounted inside the bottom plate (24).

4. The ventilation device for preventing gas from exceeding the limit according to claim 3, characterized in that: The rotating block (23) is L-shaped as a whole.

5. The ventilation device for preventing gas from exceeding the limit according to claim 1, characterized in that: The power cut-off device (62) and the intermediate relay (63) are connected using 36V power.

6. The ventilation device for preventing gas from exceeding the limit according to claim 1, characterized in that: The controller (72) is electrically connected to the main machine (3).

7. The ventilation device for preventing gas from exceeding the limit according to claim 1, characterized in that: The interior of the partition (5) is provided with holes and slots at equal intervals at the top of the fan (87).

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