CN215596481U - Fireproof check valve - Google Patents
Fireproof check valve Download PDFInfo
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- CN215596481U CN215596481U CN202121299807.1U CN202121299807U CN215596481U CN 215596481 U CN215596481 U CN 215596481U CN 202121299807 U CN202121299807 U CN 202121299807U CN 215596481 U CN215596481 U CN 215596481U
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Abstract
The utility model belongs to the technical field of check valves, and particularly relates to a fireproof check valve which comprises a valve body, wherein an air inlet is formed in the surface of one end of the valve body, and an air outlet is formed in the surface of the other end of the valve body; and a fire detection automatic valve closing device is arranged in the valve body, and controls the valve body to close when a fire is detected by the fire detection automatic valve closing device. This fire prevention check valve, through setting up fire detection automatic valve closing device, by the temperature of temperature sensor real-time detection flue and give PLC control module with temperature data transmission, when the temperature reaches the temperature on fire, PLC control module control valve cylinder pushes up first fire prevention valve page or leaf and second fire prevention valve page or leaf respectively to the surface realization valve body in first fire prevention groove and second fire prevention groove closing, the double-deck sealed effect is better, effectively solved current fire prevention check valve and adopted the individual layer valve block can take place the greasy dirt adhesion and lead to the technical problem that the valve block can not seal completely.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a fireproof check valve.
Background
In a residential building or a commercial building, a common exhaust duct is usually arranged in upper and lower stories, and kitchens and toilets in all stories are respectively connected with the common exhaust duct so as to exhaust smoke or foul air into the exhaust duct through exhaust devices such as a range hood and the like. In order to prevent the smoke in the common exhaust duct from flowing backwards, check valves are arranged between the exhaust devices in each kitchen and toilet and the common exhaust duct. In addition, in order to prevent smoke and fire in the common exhaust duct from flowing backward into the room when a fire occurs on other floors, it is required that the check valve should be a fire-proof valve that is automatically closed to prevent the spread of the fire when a fire occurs in other rooms.
However, the valve plate of the fireproof check valve in the prior art is single-layer, and the valve plate is sometimes adhered to the valve body or cannot be completely closed after being contaminated by oil stains in smoke, so that the result of backward flow of smoke and fire is caused.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that oil stains and adhesion can occur to single-layer valve plates to cause incomplete sealing of the valve plates in the conventional fireproof check valve, the utility model provides the fireproof check valve.
The utility model provides a fireproof check valve which comprises a valve body, wherein an air inlet is formed in the surface of one end of the valve body, and an air outlet is formed in the surface of the other end of the valve body;
and a fire detection automatic valve closing device is arranged in the valve body, and controls the valve body to close when a fire is detected by the fire detection automatic valve closing device.
Preferably, the middle part of the inner wall of the valve body is provided with a smoke passing groove, and one end of the inner wall of the valve body, which is close to the exhaust port, is respectively provided with a first fireproof groove and a second fireproof groove;
through above-mentioned technical scheme, when there is not the conflagration to take place, first fire prevention valve page or leaf and second fire prevention valve page or leaf stop in crossing the smoke groove, and the diameter of crossing the smoke groove is greater than the diameter of first fire prevention valve page or leaf and second fire prevention valve page or leaf, makes the oil smoke follow the gas vent and discharges after the air inlet gets into.
Preferably, the automatic valve closing device for fire detection comprises a cylinder support plate, the cylinder support plate is arranged on the inner wall of the air inlet, and a valve cylinder is arranged on the lower surface of the cylinder support plate;
through above-mentioned technical scheme, the cylinder backup pad provides the strong point for the valve cylinder, and the inside of cylinder backup pad is provided with the power cord that PLC control module connects the valve cylinder.
Preferably, a second fireproof valve page is arranged at the piston end of the valve cylinder, and a first fireproof valve page is arranged on the lower surface of the second fireproof valve page;
through the technical scheme, when a fire disaster occurs, the PLC control module controls the valve cylinder to enable the first fireproof valve leaf and the second fireproof valve leaf to respectively jack the surfaces of the first fireproof groove and the second fireproof groove, and the valve body is closed.
Preferably, a control bin is arranged on the inner wall of the smoke passing groove, a PLC control module is arranged on the inner top wall of the control bin, a storage battery is arranged on the inner bottom wall of the control bin, the PLC control module is electrically connected with the storage battery, and the PLC control module is electrically connected with the valve cylinder;
through above-mentioned technical scheme, give PLC control module power supply by the battery, the battery can external commercial power, and PLC control module control valve cylinder jack-up realizes closing of valve body.
Preferably, a sensor support plate is arranged on the inner wall of the exhaust port, a temperature sensor is arranged on the surface of the sensor support plate, and the temperature sensor is electrically connected with the PLC control module;
through the technical scheme, the temperature sensor transmits the temperature data to the PLC control module in real time, and the PLC control module controls the valve cylinder to start and close the valve when the temperature reaches the set value.
The beneficial effects of the utility model are as follows:
through setting up conflagration detection automatic valve closing device, by the temperature of temperature sensor real-time detection flue and give PLC control module with temperature data transmission, when the temperature reached the temperature on fire, PLC control module control valve cylinder pushes up first fire prevention valve page or leaf and second fire prevention valve page or leaf respectively to the surface in first fire prevention groove and second fire prevention groove and realizes closing of valve body, double-deck sealed effect is better, effectively solved current fire prevention check valve and adopted the individual layer valve block can take place the greasy dirt adhesion and lead to the technical problem that the valve block can not seal completely.
Drawings
FIG. 1 is a schematic view of a fire check valve according to the present invention;
FIG. 2 is a sectional view of a valve body structure of a fire check valve according to the present invention;
fig. 3 is a perspective view of a control cabin structure of a fire-proof check valve according to the present invention.
In the figure: 1. a valve body; 11. an air inlet; 12. an exhaust port; 2. a smoke passing groove; 21. a first fire prevention groove; 22. a second fire prevention groove; 3. a cylinder support plate; 31. a valve cylinder; 4. a second fire damper flap; 41. a first fire damper flap; 5. a control cabin; 51. a PLC control module; 52. a storage battery; 6. a sensor support plate; 61. a temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, the fireproof check valve comprises a valve body 1, wherein an air inlet 11 is formed in one end surface of the valve body 1, and an air outlet 12 is formed in the other end surface of the valve body 1;
and a fire detection automatic valve closing device is arranged in the valve body 1, and the valve body 1 is controlled to be closed when a fire is detected by the fire detection automatic valve closing device.
Further, the automatic valve closing device for fire detection comprises a cylinder support plate 3, wherein the cylinder support plate 3 is arranged on the inner wall of the air inlet 11, and a valve cylinder 31 is fixedly arranged on the lower surface of the cylinder support plate 3; the cylinder support plate 3 provides a support point for the valve cylinder 31, and the interior of the cylinder support plate 3 is provided with a power line for connecting the PLC control module 51 with the valve cylinder 31.
Further, a second fireproof valve leaf 4 is fixedly connected to a piston end of the valve cylinder 31, and a first fireproof valve leaf 41 is fixedly connected to a lower surface of the second fireproof valve leaf 4; when a fire disaster occurs, the PLC control module 51 controls the valve cylinder 31 to push the first fire prevention valve leaf 41 and the second fire prevention valve leaf 4 to the surfaces of the first fire prevention groove 21 and the second fire prevention groove 22, respectively, so as to close the valve body 1.
Further, a control cabin 5 is fixedly installed on the inner wall of the smoke passing groove 2, a PLC control module 51 is installed on the inner top wall of the control cabin 5, a battery 52 is fixedly installed on the inner bottom wall of the control cabin 5, the PLC control module 51 is electrically connected with the battery 52, and the PLC control module 51 is electrically connected with the valve cylinder 31; the storage battery 52 supplies power to the PLC control module 51, the storage battery 52 can be externally connected with commercial power, and the PLC control module 51 controls the valve cylinder 31 to jack up to realize the closing of the valve body 1.
Further, a sensor support plate 6 is fixedly connected to the inner wall of the exhaust port 12, a temperature sensor 61 is movably mounted on the surface of the sensor support plate 6, and the temperature sensor 61 is electrically connected with the PLC control module 51; the temperature sensor 61 transmits the temperature data to the PLC control module 51 in real time, and the PLC control module 51 controls the valve cylinder 31 to start and close the valve when the temperature reaches a set value.
Furthermore, a smoke passing groove 2 is formed in the middle of the inner wall of the valve body 1, and a first fire-proof groove 21 and a second fire-proof groove 22 are respectively formed in one end, close to the exhaust port 12, of the inner wall of the valve body 1; when no fire occurs, the first fire damper leaf 41 and the second fire damper leaf 4 stay in the smoke passing groove 2, and the diameter of the smoke passing groove 2 is larger than the diameter of the first fire damper leaf 41 and the second fire damper leaf 4, so that the oil smoke enters through the air inlet 11 and then is discharged from the air outlet 12.
Through setting up conflagration detection automatic closing valve device, by the temperature of temperature sensor 61 real-time detection flue and give PLC control module 51 with temperature data transfer, when the temperature reaches the temperature on fire, PLC control module 51 control flap cylinder 31 pushes up first fire prevention valve page or leaf 41 and second fire prevention valve page or leaf 4 respectively to the surface realization valve body 1 of first fire prevention groove 21 and second fire prevention groove 22 close, double-deck sealed effect is better, effectively solved current fire prevention check valve and adopted the individual layer valve block can take place the greasy dirt adhesion and lead to the technical problem that the valve block can not be sealed completely.
The working principle is as follows: the temperature of the flue is detected by the temperature sensor 61 in real time, and temperature data is transmitted to the PLC control module 51, when no fire occurs, the first fire prevention valve page 41 and the second fire prevention valve page 4 stay in the smoke passing groove 2, and the diameter of the smoke passing groove 2 is larger than that of the first fire prevention valve page 41 and the second fire prevention valve page 4, so that oil smoke enters the smoke passing groove 2 through the air inlet 11 and then is discharged from the air outlet 12.
When the temperature reaches the temperature of a fire, the PLC control module 51 controls the valve cylinder 31 to push the first fireproof valve sheet 41 and the second fireproof valve sheet 4 to the surfaces of the first fireproof groove 21 and the second fireproof groove 22 respectively to realize double-layer fireproof of the valve body 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A fire prevention check valve, includes valve body (1), its characterized in that: an air inlet (11) is formed in the surface of one end of the valve body (1), and an air outlet (12) is formed in the surface of the other end of the valve body (1);
the fire detection automatic valve closing device is arranged in the valve body (1), and the valve body (1) is controlled to be closed when a fire is detected by the fire detection automatic valve closing device.
2. A fire resistant check valve as defined in claim 1, wherein: the smoke passing groove (2) is formed in the middle of the inner wall of the valve body (1), and a first fire-proof groove (21) and a second fire-proof groove (22) are formed in one end, close to the exhaust port (12), of the inner wall of the valve body (1) respectively.
3. A fire resistant check valve as defined in claim 2, wherein: the automatic valve closing device for fire detection comprises a cylinder supporting plate (3), wherein the cylinder supporting plate (3) is arranged on the inner wall of an air inlet (11), and a valve cylinder (31) is arranged on the lower surface of the cylinder supporting plate (3).
4. A fire resistant check valve as defined in claim 3, wherein: the piston end of the valve cylinder (31) is provided with a second fireproof valve leaf (4), and the lower surface of the second fireproof valve leaf (4) is provided with a first fireproof valve leaf (41).
5. A fire resistant check valve as defined in claim 3, wherein: the inner wall of crossing cigarette groove (2) is provided with control storehouse (5), the interior roof in control storehouse (5) is provided with PLC control module (51), the interior bottom wall in control storehouse (5) is provided with battery (52), PLC control module (51) with battery (52) electricity is connected, PLC control module (51) with valve cylinder (31) electricity is connected.
6. A fire resistant check valve as claimed in claim 5, wherein: the inner wall of gas vent (12) is provided with sensor backup pad (6), the surface of sensor backup pad (6) is provided with temperature sensor (61), temperature sensor (61) with PLC control module (51) electricity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299807.1U CN215596481U (en) | 2021-06-10 | 2021-06-10 | Fireproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299807.1U CN215596481U (en) | 2021-06-10 | 2021-06-10 | Fireproof check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596481U true CN215596481U (en) | 2022-01-21 |
Family
ID=79875060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121299807.1U Active CN215596481U (en) | 2021-06-10 | 2021-06-10 | Fireproof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596481U (en) |
-
2021
- 2021-06-10 CN CN202121299807.1U patent/CN215596481U/en active Active
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