CN215691292U

CN215691292U - Novel electronic fire control pressure release device

Info

Publication number: CN215691292U
Application number: CN202121104155.1U
Authority: CN
Inventors: 朱劲武; 周铁祥
Original assignee: Beijing Leader Haixin Gas Fire Extinguishing System Equipment Co ltd
Current assignee: Beijing Leader Haixin Gas Fire Extinguishing System Equipment Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-02-01
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a novel electric fire-fighting pressure relief device, which comprises a shell, an opening and closing assembly and a driving device, wherein the shell is of a shell structure provided with an air inlet and an air outlet, an airflow inner cavity is formed between the air inlet and the air outlet and is divided into an A cavity and a B cavity along the airflow direction through a partition plate, the opening and closing assembly and the driving device are respectively and independently installed in the A cavity or the B cavity, the opening and closing assembly is a rotary opening and closing assembly and is driven to rotate through the driving device to realize the change of the flow area, the driving device comprises a motor and a control switch, the motor is fixedly installed in the shell to drive the opening and closing assembly to rotate, and the motor is electrically connected with the control switch through a lead and realizes the forward and reverse rotation through the control switch. By implementing the technical scheme of the utility model, the error rate of the opening and closing device in the prior art can be reduced, and the safety of equipment and facilities in a protection area can be protected.

Description

Novel electronic fire control pressure release device

Technical Field

The utility model relates to the field of fire-fighting auxiliary devices, in particular to a novel electric fire-fighting pressure relief device.

Background

At present, an automatic pressure relief device is a necessary device of a gas fire extinguishing system. However, most of the automatic pressure relief devices used in the prior art still have some problems, for example, many have the internal structure of the automatic pressure relief device of power supply complicated, and the installation and debugging are troublesome, and when the overpressure appears in the protected area, these pressure relief devices are difficult to accurately acquire high-pressure information in time, and can not guarantee that the pressure relief is normally carried out, and these pressure relief devices have poor reliability in operation, and the opening and closing device error rate is very high, sometimes opens insufficiently and releases slowly, sometimes closes untight and leads to the decline of fire extinguishing agent concentration, and the fire extinguishing effect becomes poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a novel electric fire-fighting pressure relief device which comprises a shell, an opening and closing assembly and a driving device, wherein the shell is of a shell structure provided with an air inlet and an air outlet, an airflow inner cavity is formed between the air inlet and the air outlet and is divided into an A cavity and a B cavity along the airflow direction through a partition plate, the opening and closing assembly and the driving device are respectively and independently installed in the A cavity or the B cavity, the opening and closing assembly is a rotary opening and closing assembly and is driven to rotate through the driving device to realize the change of the flow area, the driving device comprises a motor and a control switch, the motor is fixedly installed in the shell and drives the opening and closing assembly to rotate, the motor is a forward and reverse rotation motor and is electrically connected with the control switch through a lead, and forward and reverse rotation is realized through the control switch.

Furthermore, the control switch is a pressure control switch and comprises a pressure difference switch and a communicating pipe, the pressure difference switch is installed in the shell, the pressure taking port is communicated to the air inlet side through the communicating pipe, and the pressure difference switch controls the motor to rotate forwards or reversely.

Furthermore, the opening and closing assembly comprises a blade and a blade rotating shaft, the blade is fixedly mounted on the blade rotating shaft, one end of the blade rotating shaft is rotatably connected with the side wall of the shell, the other end of the blade rotating shaft is rotatably connected with the partition plate, and the blade is in transmission connection with the motor rotating shaft after extending out of the partition plate.

Furthermore, the opening and closing assembly is provided with a plurality of opening and closing assemblies, the opening and closing assemblies synchronously act through the driving device to realize change of the flow area, the blade rotating shafts of the opening and closing assemblies are fixedly connected with the eccentric blocks, the eccentric blocks synchronously act through the connecting rods, and the connecting rods are rotatably connected with the eccentric blocks.

Further, the fire-fighting alarm device further comprises a first micro switch and a second micro switch, wherein the first micro switch and the second micro switch are arranged in the shell and respectively correspond to two ends of the connecting rod and are respectively connected with the motor in a control mode, the first micro switch is a double-pole micro switch, when the opening of the opening and closing assembly is the largest, a pair of contact points of the first micro switch is in contact with the end portion of the connecting rod, the first micro switch controls the motor to stop rotating, the other pair of electric shocks of the first micro switch is communicated with an external fire-fighting alarm system, and when the opening of the opening and closing assembly is the smallest, the first micro switch is in contact with the end portion of the connecting rod and controls the motor to stop rotating.

Furthermore, the air inlet device also comprises a spring piece, one side of the spring piece is fixedly connected with the shell, the other side of the spring piece extends outwards towards the direction of the air inlet of the shell, and the section of the spring piece along the extending direction is in a sawtooth shape.

Furthermore, the cross-sectional areas of the cavity A and the cavity B are different, the driving device is arranged in a smaller cavity, and openings on two sides of the cavity provided with the driving device are arranged to be sealing structures.

Furthermore, a blocking piece is fixedly arranged on the shell, is arranged on a rotating line of the opening and closing assembly and is in contact with the opening and closing assembly when the opening and closing assembly is closed.

Furthermore, the shell is of a cuboid or cube structure with two opposite side faces being open.

Further, the motor is a claw type permanent magnet synchronous motor.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the pressure switch can timely and accurately acquire high-voltage information, the pressure relief device is timely opened to relieve pressure, the motor is matched to rotate positively and negatively, the opening and closing assembly can be closed timely to realize pressure relief sealing, and the shell is more stably installed by arranging the spring.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention.

Legend: 1. a housing; 11. an air inlet; 12. an air outlet; 13. an airflow cavity; 14. a partition plate; cavity A; cavity B; 17. a baffle plate; 2. an opening and closing assembly; 21. a blade; 22. a blade rotating shaft; 23. an eccentric block; 24. a connecting rod; 3. a drive device; 31. a motor; 32. a control switch; 321. a differential pressure switch; 322. a communicating pipe; 4. a first microswitch; 5.a spring plate; 6. a second microswitch; 7. an air collection port.

Detailed Description

The utility model is further described below with reference to the accompanying drawings, but is not limited to the contents of the specification.

As shown in figure 1, the utility model discloses a novel electric fire-fighting pressure relief device, which comprises a shell 1, an opening and closing assembly 2 and a driving device 3, wherein the shell 1 is of a shell structure provided with an air inlet 11 and an air outlet 12, an airflow inner cavity 13 can be formed between the air inlet 11 and the air outlet 12, the airflow inner cavity 13 is divided into an A cavity 15 and a B cavity 16 along the airflow direction through a partition plate 14, the opening and closing assembly 2 and the driving device 3 are respectively and independently installed in the A cavity 15 or the B cavity 16, specifically, the opening and closing assembly 2 can be arranged in the A cavity 15, the driving device 3 is arranged in the B cavity 16, in order to have larger discharge area, the cross-sectional areas of the A cavity 15 and the B cavity 16 are not consistent, the driving device 3 is arranged in a smaller cavity, two side openings of the cavity provided with the driving device 3 are provided with sealing structures, a cover plate can be arranged, the two side openings are blocked, namely, the cavity airflow of the driving device 3 is not circulated, the sealing effect in the room is increased; the opening and closing component 2 is a rotary opening and closing component, can adopt a louver type structure, is driven by the driving device 3 to rotate and open and close to realize the change of the flow area, the driving device 3 comprises a motor 31 and a control switch 32, the motor 31 is fixedly arranged in the shell 1 to drive the opening and closing component 2 to rotate, the motor 31 is a positive and negative rotation motor, is electrically connected with the control switch 32 through a lead, realizes positive and negative rotation through the control switch 32, the pressure switch can timely and accurately acquire high-voltage information, the pressure relief device can be timely opened for pressure relief, the opening and closing component can be timely opened and closed to realize pressure relief opening and closing in cooperation with positive and negative rotation of the motor, the motor is adopted for driving, the pressure relief device has the advantages that the opening and closing can be realized through positive and negative rotation, and all have the drive power effect of motor when opening and closing, the cooperation is opened and close the subassembly and can be better realize opening and the effect of closing.

As shown in fig. 1 and 2, the control switch 32 is a pressure control switch, including a differential pressure switch 321, a selectable french KIMO electronic micro differential pressure switch and a communication pipe 322, the differential pressure switch 321 is installed in the housing 1 and connected with an external power supply, one end of the communication pipe 322 is connected with a pressure taking port of the differential pressure switch 321, and the other end is connected with the gas collecting port 7 to the gas inlet 11 side.

As shown in fig. 1 and 2, the opening and closing assembly 2 includes a blade 21 and a blade rotating shaft 22, the blade 21 is fixedly mounted on the blade rotating shaft 22, one end of the blade rotating shaft 22 is rotatably connected with the side wall of the housing 1, the other end of the blade rotating shaft is rotatably connected with the partition plate 14, and is in transmission connection with the rotating shaft of the motor 31 after extending out of the partition plate 14, the blade 21 is opened and closed by the rotation of the blade rotating shaft 22, specifically, the blade rotating shaft and the motor rotating shaft are coaxially and fixedly connected. The opening and closing assembly 2 is provided with a plurality of opening and closing assemblies, the opening and closing assemblies synchronously act through the driving device 3 to realize the change of the flow area, the blade rotating shaft 22 of the opening and closing assembly 2 is fixedly connected with the eccentric blocks 23, the eccentric blocks 23 synchronously act through the connecting rod 24, and the connecting rod 24 is rotatably connected with the eccentric blocks 23; through setting up a plurality of subassemblies 2 of opening and close and form the shutter formula structure, width when having reduced equipment and opening, and reduced the moment of torsion that opens the needs.

The device also comprises a first microswitch 4 and a second microswitch 6, wherein the first microswitch 4 and the second microswitch 6 are respectively arranged in the shell 1 corresponding to the two ends of the connecting rod 24 and are respectively connected with the motor 31 in a control way, the first microswitch 4 is a double-pole microswitch, the motor can be controlled to stop and fire alarm can be carried out, when the opening degree of the opening and closing assembly 2 is maximum, a pair of contact points of the first microswitch 4 is contacted with the end part of the connecting rod 24, the first microswitch 4 controls the motor 31 to stop rotating, the other pair of contact points of the first microswitch 4 is communicated with an external fire alarm system, when the opening degree of the opening and closing assembly 2 is minimum, the first micro switch 4 is contacted with the end part of the connecting rod 24 and controls the motor 31 to stop rotating, the first micro switch 4 and the second micro switch 6, the model SS-5GL-3 can be selected, so that the situation that pressure release is not in place due to the fact that the motor drives the rotor shaft 22 to rotate excessively can be effectively prevented. When a fire disaster happens, the fire extinguishing agent is released, the air collecting port 7 collects air flow, the air flow rapidly flows to the pressure difference switch 321 through the communicating pipe 322, when the pressure in the protection area rises to a set value, the contact of the pressure difference switch 321 is closed, the motor 31 is electrified to rotate positively, the blade rotating shaft 22 connected to the motor 31 rapidly drives the blade 21 to rotate positively, and the pressure relief device is rapidly opened for pressure relief; when the pressure drops to a set value, the contact of the pressure difference switch 321 is disconnected, the motor 31 rotates reversely, the blade rotating shaft 22 connected to the motor 31 rapidly drives the blade 21 to rotate reversely, and the pressure relief device is rapidly closed. When the pressure relief device is started in the forward direction for pressure relief, the eccentric block 23 rotates in the forward direction along with the blade rotating shaft 22 to drive the connecting rod 24 to move upwards to approach the micro switch 4, when the blade 21 rotates to a completely opened state, the top end of the connecting rod 24 also completely touches the micro switch 4, the contact of the micro switch 4 is disconnected, the micro motor 31 is powered off and stops rotating, and the micro switch 4 is a double-pole micro switch, and the other pair of contacts of the action of the micro switch is simultaneously fed back to the fire-fighting alarm system; when the blade 21 is rotated to a completely closed state, the bottom end of the connecting rod 24 also completely touches the microswitch 6, the contact of the microswitch 6 is disconnected, the micro motor 31 is powered off and stops rotating, the pressure in the protection area is controlled to be within a normal range repeatedly, and the specific wiring mode can refer to the existing design.

As shown in fig. 1 and 2, it further comprises a spring leaf 5, one side of the spring leaf 5 is fixedly connected with the shell 1, the other side of the spring leaf 5 extends out of the shell 1 towards the air inlet 11 of the shell 1, and the cross section of the spring leaf is zigzag along the extending direction, so that the device can be firmly held on a wall body when being installed.

As shown in fig. 1 and 2, a blocking piece 17 is further fixedly mounted on the shell 1, the blocking piece 17 is arranged on a rotating line of the opening and closing assembly 2 and is in contact with the opening and closing assembly 2 when the opening and closing assembly 2 is closed, the blocking piece 17 prevents the blades 21 from being in a closed state from an open state, the protective area cannot be sealed due to closure transition, the fire extinguishing concentration in the protective area cannot reach the standard, and the optimal blocking piece 17 is matched with the blades to seal the circulation area at the closed position of the blades.

As shown in figures 1 and 2, the preferred relative both sides face of casing 1 is open-ended cuboid or square structure, and above-mentioned structure can make blade 21 evenly distributed linkage effect better, and only a model just can when changing blade 21, practices thrift cost of maintenance, improves maintenance efficiency.

As shown in fig. 1 and 2, the motor 31 is a claw type permanent magnet synchronous motor, such as a new glow drive technology ltd 755 dc permanent magnet motor.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious variations or modifications of the process variant belonging to the utility model are within the scope of protection of the utility model.

Claims

1. The utility model provides a novel electronic fire control pressure release device which characterized in that: the device comprises a shell (1), an opening and closing assembly (2) and a driving device (3), wherein the shell (1) is of a shell structure provided with an air inlet (11) and an air outlet (12), an air flow inner cavity (13) is formed between the air inlet (11) and the air outlet (12), the air flow inner cavity (13) is divided into an A cavity (15) and a B cavity (16) along the air flow direction through a partition plate (14), the opening and closing assembly (2) and the driving device (3) are respectively and independently installed in the A cavity (15) or the B cavity (16), the opening and closing assembly (2) is a rotary opening and closing assembly, the rotary opening and closing assembly is driven to rotate through the driving device (3), so that the change of the flow area is realized, the driving device (3) comprises a motor (31) and a control switch (32), the motor (31) is fixedly installed in the shell (1), the opening and closing assembly (2) is driven to rotate, and the motor (31) is a forward and reverse motor, and is electrically connected with the control switch (32) through a lead, and the forward and reverse rotation is realized through the control switch (32).

2. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the control switch (32) is a pressure control switch and comprises a differential pressure switch (321) and a communicating pipe (322), the differential pressure switch (321) is installed in the shell (1), the pressure taking port is communicated to the air inlet (11) side through the communicating pipe (322), and the differential pressure switch (321) controls the motor (31) to rotate forwards or backwards.

3. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the opening and closing assembly (2) comprises a blade (21) and a blade rotating shaft (22), the blade (21) is fixedly installed on the blade rotating shaft (22), one end of the blade rotating shaft (22) is rotatably connected with the side wall of the shell (1), the other end of the blade rotating shaft is rotatably connected with the partition plate (14), and the blade rotating shaft extends out of the partition plate (14) and then is in transmission connection with a rotating shaft of the motor (31).

4. The novel electric fire-fighting pressure relief device according to claim 3, characterized in that: the opening and closing assembly (2) is provided with a plurality of opening and closing assemblies, the opening and closing assemblies act synchronously through the driving device (3) to achieve change of the circulation area, the blade rotating shaft (22) of the opening and closing assembly (2) is fixedly connected with the eccentric block (23), the eccentric blocks (23) act synchronously through the connecting rod (24), and the connecting rod (24) is rotatably connected with the eccentric block (23).

5. The novel electric fire-fighting pressure relief device according to claim 4, characterized in that: it still includes micro-gap switch (4) and micro-gap switch two (6), micro-gap switch (4) and micro-gap switch two (6) correspond the setting at connecting rod (24) both ends respectively in casing (1), and respectively with motor (31) control connection, micro-gap switch (4) are double-pole micro-gap switch, and when opening and close subassembly (2) aperture is the biggest, a pair of contact point and connecting rod (24) tip contact of micro-gap switch (4), and micro-gap switch (4) control motor (31) stall, and micro-gap switch (4) another pair electrocute and external fire control alarm system intercommunication, when opening and close subassembly (2) aperture is minimum, micro-gap switch (4) and connecting rod (24) tip contact to control motor (31) stall.

6. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the novel shell structure is characterized by further comprising a spring piece (5), wherein one side of the spring piece (5) is fixedly connected with the shell (1), the other side of the spring piece extends out of the shell (1) towards the direction of an air inlet (11) of the shell (1), and the cross section of the spring piece along the extending direction is in a sawtooth shape.

7. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the cross-sectional areas of the cavity A (15) and the cavity B (16) are different, the driving device (3) is arranged in a smaller cavity, and openings on two sides of the cavity provided with the driving device (3) are arranged to be sealing structures.

8. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the shell (1) is further fixedly provided with a blocking piece (17), the blocking piece (17) is arranged on a rotating line of the opening and closing assembly (2) and is in contact with the opening and closing assembly (2) when the opening and closing assembly (2) is closed.

9. The novel electric fire-fighting pressure relief device according to claim 1, characterized in that: the shell (1) is of a cuboid or cube structure with two opposite side faces being open.

10. The novel electric fire-fighting pressure relief device according to claim 3, characterized in that: the motor (31) is a claw type permanent magnet synchronous motor.