CN219062040U - Ventilation device for preventing gas from exceeding limit - Google Patents

Abstract

The utility model provides a ventilation device for preventing gas from exceeding the limit, which belongs to the technical field of gas safety and aims to solve the technical problem of providing a ventilation device for preventing gas from exceeding the limit, and adopts the following scheme: compared with a traditional gas overrun ventilation device, the device can keep the relay to receive the signal of the power failure instrument when in use, provide two pairs of normally closed passive contacts provided by the relay for the opening button and the comprehensive protection respectively, and provide a pair of normally open passive contacts provided by the relay for the pressureless release coil, so that the whole circuit control is more installed, the whole working quality of the device is improved, and the internal condition of the device is monitored in real time by utilizing the cooperation of a simple structure and components, so that the operation of the internal structure of the device is more reliable and efficient, the stability of the device during operation is improved, and the service life of the internal components of the device is prolonged; the utility model is used in the field of gas.

Description

Ventilation device for preventing gas from exceeding limit

Technical Field

The utility model relates to the technical field of gas safety, in particular to a ventilation device for preventing gas from exceeding the limit.

Background

When the gas is controlled and managed, the wind power blocking and methane electric blocking are needed to be carried out at the place where the local ventilator supplies air, so that when the local ventilator which normally works stops running or can cut off the power supply of all the non-intrinsically safe electric equipment in the air stopping area after the air is stopped, a professional gas power-off instrument is generally used for managing and controlling the gas ventilation, the air supply and the like, and the operation and the stop of the ventilator are controlled by the existing gas power-off instrument through a switching-off loop of a protection contact control switch when the gas power-off instrument is used, thereby achieving the purpose of power off.

Therefore, it is necessary to provide a new ventilation device for preventing the gas from exceeding the limit.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a safe, convenient and practical ventilation device for preventing gas overrun.

The ventilation device for preventing gas overrun provided by the utility model comprises: the shell, the apron, the main part machine, connecting wire and baffle, the shell side rotates and installs the apron, the inside fixed mounting of shell has the baffle, the inside baffle top fixed mounting that is located of shell has the main part machine, main part machine tip fixed mounting has connecting wire, the inside main part side fixed mounting that is located of shell has controlling means, controlling means is including comprehensive protection, the separating brake coil, pressureless release coil and switch circuit breaker separating brake, the inside main part side that is located of shell is fixed mounting respectively and is had comprehensive protection, separating brake coil, pressureless release coil and switch circuit breaker separating brake, comprehensive protection and separating brake coil, the equal electric connection of pressureless release coil, separating brake coil, pressureless release coil tip all with switch circuit breaker separating brake electric connection, the inside alarm device that is located of baffle bottom fixed mounting that is located of shell, the inside alarm device side fixed mounting that is located of shell has protector.

Preferably, a sealing plate is fixedly arranged on one side, close to the shell, of the side face of the cover plate, so that the tightness of the cover plate when the cover plate is attached to the shell is guaranteed in use, and external water vapor is prevented from entering the interior.

Preferably, the cover plate further comprises a swivel base, a swivel rod, a swivel block, a bottom plate and a control panel, the swivel base is symmetrically and fixedly arranged on the side face of the shell, the swivel rod is rotatably arranged inside the swivel base, the swivel block is symmetrically and fixedly arranged outside the swivel rod, the bottom plate is fixedly arranged at the end part of the swivel block, and the control panel is fixedly arranged inside the bottom plate.

Preferably, the whole L shape that is of commentaries on classics piece, in use make the better laminating with shell opening part of bottom plate, guarantee the stability of interior part.

Preferably, the control device further comprises a protective shell, a power-off instrument and an intermediate relay, wherein the protective shell is fixedly arranged on the side face of the main body in the shell, the power-off instrument and the intermediate relay are fixedly arranged in the protective shell respectively, and the power-off instrument and the intermediate relay are electrically connected.

Preferably, the outage instrument is communicated with the intermediate relay by 36V power, so that a plurality of lines are conveniently communicated in use, and the lines are more stable and efficient to control.

Preferably, the alarm device comprises a protective shell, a controller, an information processor, a temperature sensor, a humidity sensor and an alarm, wherein the protective shell is fixedly arranged at the bottom end of the partition board inside the shell, the controller, the information processor, the temperature sensor, the humidity sensor and the alarm are respectively fixedly arranged inside the protective shell, and the controller, the information processor, the temperature sensor, the humidity sensor and the alarm are electrically connected with each other.

Preferably, the controller is electrically connected with the main body, and in use, the operation of power-off and shutdown of the main body is facilitated through the controller.

Preferably, the protection device comprises a land block, sliding grooves, sliding blocks, thread grooves, threaded rods, mounting plates and fans, wherein the land block is fixedly mounted on the inner wall of the shell, the sliding grooves are symmetrically formed in the land block, the sliding blocks are slidably mounted in the sliding grooves, the thread grooves are jointly formed in the sliding blocks and the land block, the threaded rods are mounted in the thread grooves, the mounting plates are fixedly mounted between the sliding blocks, and the fans are fixedly mounted in the mounting plates.

Preferably, the baffle is inside to be located the fan top equidistance and to set up the hole groove, and the flow and the circulation of wind of being convenient for in use, better get rid of inside steam.

Compared with the related art, the ventilation device for preventing gas overrun has the following beneficial effects:

the utility model provides a ventilation device for preventing gas overrun:

1. through the use and the installation of the control device, the relay can be kept to receive the signal of the power-off instrument, two pairs of normally-closed passive contacts provided by the relay are respectively provided for the opening button and the comprehensive protection, and a pair of normally-open passive contacts provided by the relay are provided for the pressureless release coil, so that the whole circuit control is more installed, the operation of the ventilation device is more stable, the stability of the equipment in operation is improved, and the whole working quality of the equipment is improved;

2. through protector and alarm device's use, utilize simple structure and the cooperation of part to carry out real-time supervision to the inside condition of external equipment, guaranteed the stability when equipment operates, let equipment inner structure's operation more reliable, high-efficient to stability when having improved equipment operation has prolonged the life of equipment inner part.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a second schematic diagram of the overall structure of the present utility model;

FIG. 3 is a third schematic diagram of the overall structure provided by the present utility model;

FIG. 4 is a schematic view of the internal structure of the cover plate according to the present utility model;

FIG. 5 is a schematic diagram of a control device according to the present utility model;

FIG. 6 is a schematic diagram of an alarm device according to the present utility model;

FIG. 7 is a schematic view of a protecting device according to the present utility model;

fig. 8 is a schematic circuit diagram of a control device according to the present utility model.

Reference numerals in the drawings: 1. a housing; 2. a cover plate; 21. rotating base; 22. a rotating rod; 23. a rotating block; 24. a bottom plate; 25. a control panel; 3. a main body machine; 4. a connection line; 5. a partition plate; 6. a control device; 61. a protective shell; 62. a power-off instrument; 63. an intermediate relay; 64. comprehensive protection; 65. a brake-separating coil; 66. a pressureless release coil; 67. the switch breaker is opened; 7. an alarm device; 71. a protective shell; 72. a controller; 73. an information processor; 74. a temperature sensor; 75. a humidity sensor; 76. an alarm; 8. a protective device; 81. a land block; 82. a chute; 83. a slide block; 84. a thread groove; 85. a threaded rod; 86. a mounting plate; 87. a blower.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, 2, 3, 4, 5, 6, 7 and 8 in combination, the ventilation device for preventing gas overrun includes: the device comprises a shell 1, a cover plate 2, a main body machine 3, a connecting circuit 4 and a partition plate 5.

Embodiment one:

in a specific implementation process, as shown in fig. 1, 2 and 3, a cover plate 2 is rotatably installed on the side surface of a shell 1, a partition plate 5 is fixedly installed inside the shell 1, a main body machine 3 is fixedly installed at the top end of the partition plate 5 inside the shell 1, a connecting circuit 4 is fixedly installed at the end part of the main body machine 3, a control device 6 is fixedly installed on the side surface of the main body machine 3 inside the shell 1, the control device 6 comprises a comprehensive protection 64, a brake separating coil 65, a pressureless release coil 66 and a switch breaker brake separating 67, the comprehensive protection 64 is electrically connected with the brake separating coil 65 and the pressureless release coil 66, an alarm device 7 is fixedly installed at the bottom end of the partition plate 5 inside the shell 1, and a protection device 8 is fixedly installed on the side surface of the alarm device 7 inside the shell 1.

In use, through installing the equipment to the target position, then through the use of connecting wire 4, be connected ventilation unit and main part machine 3, make things convenient for follow-up control, use through controlling means 6, carry out reasonable, stable management and control to the holistic circuit of equipment, be used for controlling ventilation unit's operation and shut down, and follow-up use of alarm device 7, can be automatic detect the inside condition of shell 1, make things convenient for follow-up maintenance and observation, finally use protector 8's use, get rid of the unnecessary heat and the moisture of equipment inside, thereby make equipment more stable when using, the operating quality of equipment self has been improved.

Referring to fig. 1, a sealing plate is fixedly installed on one side of the side surface of the cover plate 2, which is close to the housing 1, so that the sealing performance of the cover plate 2 when being attached to the housing 1 is ensured in use, and external moisture is prevented from entering the interior.

Referring to fig. 4, the cover plate 2 further includes a swivel base 21, a swivel rod 22, a swivel block 23, a bottom plate 24 and a control panel 25, the swivel base 21 is symmetrically and fixedly installed on the side surface of the housing 1, the swivel rod 22 is rotatably installed inside the swivel base 21, the swivel block 23 is symmetrically and fixedly installed outside the swivel rod 22, the bottom plate 24 is fixedly installed at the end part of the swivel block 23, and the control panel 25 is fixedly installed inside the bottom plate 24.

Referring to fig. 4, the rotary block 23 is generally L-shaped, so that the bottom plate 24 better fits with the opening of the housing 1 during use, and the stability of the internal components is ensured.

Referring to fig. 5 and 8, the control device 6 further includes a protective case 61, a power-off instrument 62 and an intermediate relay 63, wherein the protective case 61 is fixedly installed on the side surface of the main body machine 3 inside the housing 1, the power-off instrument 62 and the intermediate relay 63 are fixedly installed inside the protective case 61 respectively, and the power-off instrument 62 and the intermediate relay 63 are electrically connected.

When in use, the normally closed point of the power-off instrument 62 is shifted into the control loop of the 36V intermediate relay 63, the 36V intermediate relay 63 is in a charged suction state under normal conditions, and when gas overrun or other faults occur, the normally closed point of the power-off instrument 62 is disconnected, and the intermediate relay 63 is released after power failure; after the intermediate relay 63 is released, a pair of normally closed points act on the comprehensive protection 64, the switch starts to report the gas overrun fault, and the protection contact points act on the opening coil 65 and the pressureless release coil 66 to cut off the opening 67 of the switch breaker; after the intermediate relay 63 is released, the other pair of normally closed points directly acts on the opening coil 65 to reliably open and cut off the opening 67 of the switch breaker; a pair of normally open points directly act on the pressureless release coil 66 after the intermediate relay 63 is released to reliably open and cut off the switch breaker opening 67; the power-off instrument 62 divides the fault signal into three through the intermediate relay 63, thereby realizing high reliability of gas power-off and avoiding the phenomenon that the gas power-off is always refused by simply relying on the comprehensive protection 64.

Referring to fig. 5, the power-off device 62 is connected to the intermediate relay 63 by 36V power, so that a plurality of lines can be conveniently connected in use, and the control of the lines is more stable and efficient.

Referring to fig. 6, the alarm device 7 includes a protective housing 71, a controller 72, an information processor 73, a temperature sensor 74, a humidity sensor 75 and an alarm 76, wherein the protective housing 71 is fixedly mounted at the bottom end of the partition 5 in the housing 1, the controller 72, the information processor 73, the temperature sensor 74, the humidity sensor 75 and the alarm 76 are fixedly mounted in the protective housing 71, and the controller 72, the information processor 73, the temperature sensor 74, the humidity sensor 75 and the alarm 76 are electrically connected with each other.

In use, the humidity and temperature information in the outer shell 1 is collected and processed through the use of the temperature sensor 74 and the humidity sensor 75, then the data is analyzed and processed through the cooperation of the information processor 73 and the controller 72, and once the locking threshold value is exceeded, the alarm 76 automatically gives an alarm to remind the staff of maintenance and processing.

Referring to fig. 6, the controller 72 is electrically connected to the main body 3, and in use, the main body 3 is conveniently powered off and stopped by the controller 72.

Referring to fig. 7, the protection device 8 includes a land block 81, a chute 82, a slider 83, a thread groove 84, a threaded rod 85, a mounting plate 86 and a fan 87, wherein the land block 81 is fixedly mounted on the inner wall of the housing 1, the chute 82 is symmetrically arranged inside the land block 81, the slider 83 is slidably mounted inside the chute 82, the thread groove 84 is commonly arranged inside the slider 83 and the land block 81, the threaded rod 85 is mounted inside the thread groove 84, the mounting plate 86 is fixedly mounted between the slider 83, and the fan 87 is symmetrically and fixedly mounted inside the mounting plate 86.

In use, the sliding block 83 slides into the sliding groove 82, then the mounting plate 86 is mounted and fixed through the cooperation of the threaded rod 85 and the threaded groove 84, and finally the temperature and the humidity in the casing 1 are controlled by using the fan 87, so that the running stability of the components is ensured.

Referring to fig. 1, the partition 5 is provided with holes and grooves at equal intervals on the top end of the fan 87, which is convenient for the flow and circulation of wind in use and better removes the water vapor in the partition.

Embodiment two:

referring to fig. 4, the bottom plate 24 is internally provided with a lock catch, which is convenient for locking the position of the cover plate 2 in use, and enhances the stability and safety of the whole in use.

Working principle: the ventilation device for preventing the gas overrun is characterized in that when the ventilation device is used, equipment is installed at a target position, then the ventilation device is connected with a main machine 3 through the use of a connecting circuit 4, the follow-up control is convenient, the whole circuit of the equipment is reasonably and stably controlled through the use of a control device 6, the ventilation device is used for controlling the operation and the shutdown of the ventilation device, the normally closed point of a power-off instrument 62 is shifted into a 36V intermediate relay 63 control loop, the normally 36V intermediate relay 63 is in a charged suction state, the normally closed point of the power-off instrument 62 is disconnected under the condition that the gas overrun or other faults occur, and the power-off of the intermediate relay 63 is released; after the intermediate relay 63 is released, a pair of normally closed points act on the comprehensive protection 64, the switch starts to report the gas overrun fault, and the protection contact points act on the opening coil 65 and the pressureless release coil 66 to cut off the opening 67 of the switch breaker; after the intermediate relay 63 is released, the other pair of normally closed points directly acts on the opening coil 65 to reliably open and cut off the opening 67 of the switch breaker; a pair of normally open points directly act on the pressureless release coil 66 after the intermediate relay 63 is released to reliably open and cut off the switch breaker opening 67; the outage appearance 62 is divided into three through intermediate relay 63 with fault signal to the high reliability that the gas was cut off the power supply has been realized, avoid relying on comprehensive protection 64 to realize that the gas is cut off the power supply and appear refusing action phenomenon often, and use of alarm device 7 is utilized to follow-up, can automatic detection to the inside condition of shell 1, use through temperature sensor 74 and humidity transducer 75, collect and handle humidity, temperature information in the inside of shell 1, then cooperation through information processor 73 and controller 72, accomplish analysis and the processing of data, in case surpass the threshold value of locking, alarm 76 can send the alarm voluntarily, remind the staff to maintain and handle, make things convenient for follow-up maintenance and observation, use of protector 8 at last, through slide slider 83 in spout 82 inside, then through threaded rod 85 and thread groove 84's cooperation, install and fix mounting panel 86, use of fan 87 at last, temperature and humidity in the inside of shell 1 are controlled, guarantee the stability of part operation, get rid of heat and moisture in the equipment inside, thereby make equipment more stable when using, equipment self quality has been improved.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims (10)

1. A ventilation device for preventing gas overrun, comprising: shell (1), apron (2), main part machine (3), connecting wire (4) and baffle (5), apron (2) are installed in rotation of shell (1) side, inside fixed mounting of shell (1) has baffle (5), the inside main part machine (3) that is located baffle (5) top fixed mounting of shell (1), main part machine (3) tip fixed mounting has connecting wire (4), the inside main part machine (3) side fixed mounting of shell (1) has controlling means (6), controlling means (6) are including comprehensive protection (64), brake release coil (65), pressureless release coil (66) and switch circuit breaker brake (67), the inside comprehensive protection (64), brake release coil (65), pressureless release coil (66) and switch circuit breaker brake (67) that are located of shell (1) side fixed mounting respectively, comprehensive protection (64) and brake release coil (65), pressureless release coil (66) all electric connection, brake release coil (65), pressureless release coil (66) tip and switch circuit breaker brake (67) all electric connection, alarm device (7) are located inside the inside of shell (1), the inside of the shell (1) is positioned on the side surface of the alarm device (7) and is fixedly provided with a protection device (8).

2. The ventilation device for preventing gas overrun according to claim 1, wherein a sealing plate is fixedly installed on one side of the side surface of the cover plate (2) close to the housing (1).

3. The ventilation device for preventing gas overrun according to claim 1, wherein the cover plate (2) further comprises a swivel base (21), a rotating rod (22), a rotating block (23), a bottom plate (24) and a control panel (25), the swivel base (21) is symmetrically and fixedly installed on the side face of the housing (1), the rotating rod (22) is rotatably installed inside the swivel base (21), the rotating block (23) is symmetrically and fixedly installed outside the rotating rod (22), the bottom plate (24) is fixedly installed at the end part of the rotating block (23), and the control panel (25) is fixedly installed inside the bottom plate (24).

4. A ventilation device for preventing excessive gas according to claim 3, characterized in that said rotary block (23) has an overall L-shape.

5. The ventilation device for preventing gas overrun according to claim 1, wherein the control device (6) further comprises a protective shell (61), a power-off instrument (62) and an intermediate relay (63), the protective shell (61) is fixedly mounted on the side surface of the main body machine (3) inside the shell (1), the power-off instrument (62) and the intermediate relay (63) are fixedly mounted inside the protective shell (61) respectively, and the power-off instrument (62) is electrically connected with the intermediate relay (63).

6. The ventilation device for preventing gas overrun according to claim 5, wherein the power cut-off device (62) communicates with the intermediate relay (63) using 36V power.

7. The ventilation device for preventing gas overrun according to claim 1, wherein 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), wherein the protective shell (71) is fixedly arranged at the bottom end of the partition board (5) inside the shell (1), the controller (72), the information processor (73), the temperature sensor (74), the humidity sensor (75) and the alarm (76) are respectively and fixedly arranged inside the protective shell (71), and the controller (72), the information processor (73), the temperature sensor (74), the humidity sensor (75) and the alarm (76) are electrically connected with each other.

8. The ventilation device for preventing gas overrun according to claim 7, wherein the controller (72) is electrically connected to the main body (3).

9. The ventilation device for preventing gas overrun according to claim 1, wherein the protection device (8) comprises a land block (81), a sliding groove (82), a sliding block (83), a thread groove (84), a threaded rod (85), a mounting plate (86) and a fan (87), the land block (81) is fixedly mounted on the inner wall of the shell (1), the sliding groove (82) is symmetrically formed in the land block (81), the sliding block (83) is slidably mounted in the sliding groove (82), the thread groove (84) is jointly formed in the sliding block (83) and the land block (81), the threaded rod (85) is mounted in the thread groove (84), the mounting plate (86) is fixedly mounted between the sliding blocks (83), and the fan (87) is symmetrically and fixedly mounted in the mounting plate (86).

10. The ventilation device for preventing gas overrun according to claim 9, wherein the partition (5) is provided with holes and grooves at equal intervals on the top end of the fan (87).

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