CN110193157B - Shunting device for fire fighting and application method thereof - Google Patents
Shunting device for fire fighting and application method thereof Download PDFInfo
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- CN110193157B CN110193157B CN201910450375.0A CN201910450375A CN110193157B CN 110193157 B CN110193157 B CN 110193157B CN 201910450375 A CN201910450375 A CN 201910450375A CN 110193157 B CN110193157 B CN 110193157B
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- 238000000034 method Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000006260 foam Substances 0.000 claims abstract description 24
- 238000007667 floating Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 25
- 230000009471 action Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a shunting device for fire fighting and an application method thereof, which comprises an integrally formed body, wherein the body is provided with a water inlet channel, the water inlet channel is communicated with a water drainage channel and a fire fighting channel, and two ends of the fire fighting channel penetrate through the body; the water drainage channel is communicated with the fire extinguishing channel and the pressure relief channel, one end of the pressure relief channel is communicated with the outer side of the body, and a first threaded valve is arranged at one end communicated with the outer side of the body; an auxiliary channel is arranged in the body, and a buffer channel is arranged between the auxiliary channel and the fire extinguishing channel; and a buffer device is arranged in the auxiliary channel. The flow dividing device has the function of inputting fire extinguishing foam while discharging rainwater, so that the drainage and fire extinguishing structure of the floating roof oil tank is simplified; the invention has simple assembly when in use, and simplifies the operation flow and content of the floating roof oil tank during installation; the flow dividing device monitors the water accumulation amount above the floating roof by detecting the flow of water, and realizes the control of the water discharge amount by controlling the threaded valve.
Description
Technical Field
The invention relates to the field of fire fighting, in particular to a fire-fighting diversion device used above a floating roof oil tank.
Background
The floating roof tank is a common oil storage device in the prior art, and the fire prevention/extinguishing measures are most concerned. Since the floating roof of the floating roof tank can move up and down along with the height of the oil level in the tank, as shown in fig. 7, when the oil level is low, more rainwater can be accumulated above the floating roof due to rain, and the rainwater can penetrate into the tank when the rainwater is above the floating roof for a long time, so that the drainage above the floating roof is extremely important; since there is a certain gap at the interface of the floating roof and the tank wall due to poor sealing, the first to catch fire is the fire zone in case of fire. For this reason, there is a high necessity for a flow divider that can drain water during rain and allow foam to flow through during a fire.
Disclosure of Invention
The invention aims to provide a shunting device for fire fighting and an application method thereof, which realize double functions of drainage and fire fighting through the shunting device, thereby simplifying the installation process and technology of a floating roof oil tank and playing a role in protecting the floating roof oil tank.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a diverging device for fire control is put out a fire, includes integrated into one piece's body, its characterized in that, be equipped with inhalant canal, sluicing passageway, passageway and the pressure release passageway of putting out a fire on the body, inhalant canal and sluicing passageway, the passageway intercommunication of putting out a fire, the inhalant canal, the one end of sluicing passageway all communicate the body outside, the both ends of passageway of putting out a fire link up the body.
The water drainage channel is communicated with the fire extinguishing channel and the pressure relief channel, one end of the pressure relief channel is communicated with the outer side of the body, and a first threaded valve is arranged at one end communicated with the outer side of the body.
The port department that is close to the sluicing passageway in the passageway of putting out a fire is equipped with the second screw valve, is equipped with the slide valve in the passageway of putting out a fire, is equipped with first elastic component between second screw valve and the slide valve.
Still be equipped with auxiliary passage in this body, auxiliary passage one end intercommunication body outside, the other end intercommunication sluices the passageway, is equipped with buffer channel between auxiliary passage and the passageway of putting out a fire.
The junction of the auxiliary channel and the buffer channel forms a mounting opening, a buffer device is arranged in the mounting opening, and a flow meter is arranged in the auxiliary channel.
Furthermore, the lower end of the sliding valve is provided with an arc-shaped notch for increasing the contact area with liquid, the two ends of the arc-shaped notch and the side edge of the sliding valve form a limiting side edge, and an inwards-concave bayonet is arranged in the fire extinguishing channel.
Furthermore, spacing side and bayonet socket cooperation prevent that the slide valve from dropping in the passageway of putting out a fire, and simultaneously under the effect of first elastic component, the slide valve is stabilized in the passageway of putting out a fire.
Further, when the limiting side edge is tightly attached to the bayonet, the sliding valve blocks a communication port of the water inlet channel and the fire extinguishing channel; the top end of the sliding valve is attached to the top end of the sealing notch, and the water inlet channel is communicated with the fire extinguishing channel.
Further, the diameter of the lower end of the bayonet is smaller than that of the sliding valve.
Further, buffer includes the guide post, and the guide post is fixed on the installing port inner wall, is equipped with the second elastic component on the guide post, still is equipped with the sealed slider through recess sliding connection on the guide post.
Furthermore, when the sealing slide block is only under the action of the second elastic piece, the auxiliary channel is not communicated with the buffer channel, and the auxiliary channel is unobstructed; when the sealing slide block compresses the second elastic piece under the action of water pressure, the auxiliary channel is communicated with the buffer channel, and meanwhile, the auxiliary channel is blocked by the sealing slide block.
Furthermore, the juncture of the fire extinguishing channel and the water drainage channel is provided with a sealing notch for sealing, and when the top end of the sliding valve is attached to the top end of the sealing notch, the sliding valve blocks the water drainage channel.
Furthermore, the water inlet of the water inlet channel is provided with an internal thread for connecting a water pipe.
The application method of the flow dividing device for fire fighting comprises the following two aspects:
and (3) draining: rainwater flows out through the water inlet channel and the water drainage channel so as to drain accumulated water above the floating roof, at the moment, the water inlet channel is not communicated with the fire extinguishing channel, the auxiliary channel is not communicated with the buffering channel, and the auxiliary channel is unobstructed; when water is drained, water flows also pass through the auxiliary channel, and the flow meter in the auxiliary channel records the flow of water so as to judge whether the water inlet channel and the water drainage channel can drain rainwater in time; when data recorded by the flow meter exceed a threshold value, the rainwater cannot be timely drained, and at the moment, the first threaded valve is opened to assist drainage through the pressure relief channel.
For extinguishing fires: when fire is extinguished, high-pressure foam enters from the fire extinguishing channel, the sliding valve is flushed to the topmost end under the action of pressure, namely the water drainage channel is blocked, the fire extinguishing channel is communicated with the water inlet channel, the high-pressure foam enters the water inlet channel and is discharged, and the discharged high-pressure foam is accumulated above the floating roof, so that the fire extinguishing effect is achieved; at the moment that high pressure foam gets into the passageway of putting out a fire, because its pressure is huge, high pressure foam also can break away sealed slider, and partial high pressure foam is discharged from the auxiliary passage lower extreme, and buffer can effectively prevent to cause the damage to device and water pipe because of pressure is too big.
The invention has the beneficial effects that:
1. the flow dividing device has the function of inputting fire extinguishing foam while discharging rainwater, so that the drainage and fire extinguishing structure of the floating roof oil tank is greatly simplified;
2. the invention has simple assembly when in use, simplifies the operation flow and the operation content when the floating roof oil tank is installed, thereby improving the production efficiency;
3. the flow dividing device monitors the water accumulation amount above the floating roof by detecting the flow of water, and realizes the control of the water discharge amount by controlling the threaded valve.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is an overall cross-sectional view of a shunt device;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is an enlarged schematic view at B in FIG. 1;
FIG. 4 is a schematic drainage diagram of the flow divider;
FIG. 5 is a schematic foam flow diagram of the flow divider;
FIG. 6 is a schematic foam flow diagram of the flow divider;
FIG. 7 is a schematic view of a location of a fire zone in the prior art.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a water pipe connecting device for a floating roof oil tank, which has the specific function of fire fighting while draining water.
The utility model provides a diverging device for fire control is put out a fire, includes integrated into one piece's body, as shown in figure 1, is equipped with inhalant canal 10, sluicing passageway 20, passageway 30 and the pressure release passageway 40 of putting out a fire on the body, and inhalant canal 10 communicates with sluicing passageway 20, passageway 30 of putting out a fire, and the body outside is all linked together to the one end of inhalant canal 10, sluicing passageway 20, and the body is link up at the both ends of passageway 30 of putting out a fire. Wherein, the water inlet of the water inlet channel 10 is provided with internal threads for connecting a water pipe so as to discharge accumulated water.
The water drainage channel 20 is communicated with the fire extinguishing channel 30 and the pressure relief channel 40, one end of the pressure relief channel 40 is communicated with the outer side of the body, and one end communicated with the outer side of the body is provided with a first threaded valve 401.
A second screw valve 301 is arranged at the port of the fire extinguishing passage 30 close to the drainage passage 20, a sliding valve 302 is arranged in the fire extinguishing passage 30, and a first elastic member 303 is arranged between the second screw valve 301 and the sliding valve 302. The lower end of the slide valve 302 is provided with an arc-shaped notch 3021 for increasing the contact area with the liquid, as shown in fig. 2, both ends of the arc-shaped notch 3021 and the side edge of the slide valve 302 form a limit side 3022; an inwards concave bayonet 304 is arranged in the fire extinguishing passage 30, and the diameter of the lower end of the bayonet 304 is smaller than that of the sliding valve 302; the limiting sides 3022 cooperate with the bayonets 304 to prevent the sliding valve 302 from falling out of the fire extinguishing passage 30, while the sliding valve 302 is stabilized in the fire extinguishing passage 30 by the first elastic member 303.
A sealing notch 305 is provided at the boundary between the fire extinguishing passage 30 and the drainage passage 20, and when the top end of the slide valve 302 abuts against the top end of the sealing notch 305 as shown in fig. 1, the slide valve 302 blocks the drainage passage 20 as shown in fig. 5, thereby preventing the liquid from flowing.
When the limiting side 3022 and the bayonet 304 are tightly attached, the sliding valve 302 blocks the communication port of the water inlet channel 10 and the fire extinguishing channel 30; the water inlet passage 10 and the fire extinguishing passage 30 communicate while the top end of the slide valve 302 abuts the top end of the sealing notch 305.
By adjusting the position of the second screw valve 301, the elastic force of the first elastic member 303 against the slide valve 302 can be adjusted, thereby controlling the amount of pressure required for the liquid to flush away the slide valve 302.
An auxiliary channel 50 is further arranged in the body, one end of the auxiliary channel 50 is communicated with the outer side of the body, the other end of the auxiliary channel 50 is communicated with the water drainage channel 20, and a buffer channel 60 is arranged between the auxiliary channel 50 and the fire extinguishing channel 30. The junction of the auxiliary channel 50 and the buffer channel 60 forms a mounting opening 70, the width of the mounting opening 70 is larger than the diameter of the auxiliary channel 50 and the buffer channel 60, and a buffer device 80 is arranged in the mounting opening 70.
The buffering device 80 comprises a guide column 801, the guide column 801 is fixed on the inner wall of the mounting opening 70, a second elastic piece 802 is arranged on the guide column 801, and a sealing sliding block 803 which is connected with the guide column 801 in a sliding mode through a groove is further arranged on the guide column 801. When the sealing slide block 803 is only under the action of the second elastic piece 802, the auxiliary channel 50 is not communicated with the buffer channel 60, and the auxiliary channel 50 is unobstructed; when the sealing slider 803 compresses the second elastic member by the water pressure, as shown in fig. 6, the auxiliary passage 50 communicates with the buffer passage 60 while the auxiliary passage 50 is blocked by the sealing slider 803.
A flow meter 501 is provided in the auxiliary passage 50.
The device is used as follows:
and (3) draining: as shown in fig. 4, rainwater flows out through the water inlet channel 10 and the water outlet channel 20, so that accumulated water above the floating roof is discharged, at the moment, the water inlet channel 10 is not communicated with the fire extinguishing channel 30, the auxiliary channel 50 is not communicated with the buffer channel 60, and the auxiliary channel 50 is unobstructed; while water is drained, water flows through the auxiliary channel 50, and the flow meter 501 in the auxiliary channel 50 records the flow of water so as to judge whether the water inlet channel 10 and the water drainage channel 20 can drain rainwater in time; when the data recorded by the flow meter 501 exceeds the threshold value, it is determined that rainwater cannot be drained in time, and at this time, the first threaded valve 401 is opened to assist drainage by means of the pressure relief channel 40.
For extinguishing fires: as shown in FIG. 5, when fire is extinguished, high-pressure foam enters from the fire extinguishing passage 30, the sliding valve 302 is flushed to the topmost end under the action of pressure, namely, the water drainage passage 20 is blocked, the fire extinguishing passage 30 is communicated with the water inlet passage 10, the high-pressure foam enters the water inlet passage 10 and is discharged, and the discharged high-pressure foam is accumulated above the floating roof, so that the fire extinguishing effect is achieved. At the moment when the high-pressure foam enters the fire extinguishing passage 30, the high-pressure foam also rushes the sealing slider 803 due to the large pressure, as shown in fig. 6, and a part of the high-pressure foam is discharged from the lower end of the auxiliary passage 50, so that the buffering device 80 can effectively prevent the device and the water pipe from being damaged due to the excessive pressure.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. A flow dividing device for fire fighting and extinguishment comprises an integrally formed body, and is characterized in that a water inlet channel (10), a water drainage channel (20), an extinguishment channel (30) and a pressure relief channel (40) are arranged on the body, the water inlet channel (10), the water drainage channel (20) and the extinguishment channel (30) are communicated, one ends of the water inlet channel (10) and the water drainage channel (20) are communicated with the outer side of the body, and two ends of the extinguishment channel (30) are communicated with the body;
the water drainage channel (20) is communicated with the fire extinguishing channel (30) and the pressure relief channel (40), one end of the pressure relief channel (40) is communicated with the outer side of the body, and a first threaded valve (401) is arranged at one end communicated with the outer side of the body;
a second threaded valve (301) is arranged at a port, close to the water drainage channel (20), in the fire extinguishing channel (30), a sliding valve (302) is arranged in the fire extinguishing channel (30), and a first elastic piece (303) is arranged between the second threaded valve (301) and the sliding valve (302);
an auxiliary channel (50) is also arranged in the body, one end of the auxiliary channel (50) is communicated with the outer side of the body, the other end of the auxiliary channel (50) is communicated with the water drainage channel (20), and a buffer channel (60) is arranged between the auxiliary channel (50) and the fire extinguishing channel (30);
a mounting opening (70) is formed at the junction of the auxiliary channel (50) and the buffer channel (60), a buffer device (80) is arranged in the mounting opening (70), and a flowmeter (501) is arranged in the auxiliary channel (50);
an arc-shaped notch (3021) for increasing the contact area with liquid is formed in the lower end of the sliding valve (302), limiting side edges (3022) are formed at two ends of the arc-shaped notch (3021) and the side edges of the sliding valve (302), and an inwards-concave bayonet (304) is arranged in the fire extinguishing channel (30);
the limiting side edge (3022) is matched with the bayonet (304) to prevent the sliding valve (302) from falling out of the fire extinguishing channel (30), and meanwhile, under the action of the first elastic piece (303), the sliding valve (302) is stabilized in the fire extinguishing channel (30);
when the limiting side edge (3022) is tightly attached to the bayonet (304), the sliding valve (302) blocks the communication opening of the water inlet channel (10) and the fire extinguishing channel (30); the top end of the sliding valve (302) is attached to the top end of the sealing notch (305), and the water inlet channel (10) is communicated with the fire extinguishing channel (30);
a sealing notch (305) for sealing is arranged at the junction of the fire extinguishing channel (30) and the water drainage channel (20), and when the top end of the sliding valve (302) is attached to the top end of the sealing notch (305), the sliding valve (302) blocks the water drainage channel (20).
2. A flow divider device for fire fighting according to claim 1, characterized in that the diameter of the lower end of the bayonet opening (304) is smaller than the diameter of the slide valve (302).
3. A flow dividing device for fire fighting according to claim 1, characterized in that the damping device (80) comprises a guiding post (801), the guiding post (801) is fixed on the inner wall of the mounting opening (70), the guiding post (801) is provided with a second elastic member (802), and the guiding post (801) is further provided with a sealing slider (803) slidably connected through a groove.
4. A flow dividing device for fire fighting according to claim 3, characterized in that the auxiliary channel (50) is not communicated with the buffer channel (60) and the auxiliary channel (50) is not communicated with the buffer channel (60) only under the action of the second elastic member (802) by the sealing slider (803); when the sealing slider (803) compresses the second elastic member under the action of water pressure, the auxiliary passage (50) communicates with the buffer passage (60), and the auxiliary passage (50) is blocked by the sealing slider (803).
5. A fire fighting splitter according to claim 1, characterized in that the water inlet of the water inlet channel (10) is provided with an internal thread for connection to a water pipe.
6. The application method of the flow dividing device for fire fighting according to claim 1 is characterized by comprising the following two aspects,
and (3) draining: rainwater flows out through the water inlet channel (10) and the water drainage channel (20) so as to drain accumulated water above the floating roof, at the moment, the water inlet channel (10) is not communicated with the fire extinguishing channel (30), the auxiliary channel (50) is not communicated with the buffer channel (60), and the auxiliary channel (50) is unobstructed; when water is drained, water flows also pass through the auxiliary channel (50), the flowmeter (501) in the auxiliary channel (50) records the flow of water, and therefore whether the water inlet channel (10) and the water drainage channel (20) can drain rainwater in time is judged; when data recorded by the flowmeter (501) exceed a threshold value, judging that rainwater cannot be drained in time, opening the first threaded valve (401) at the moment, and assisting in draining by means of the pressure relief channel (40);
for extinguishing fires: when fire is extinguished, high-pressure foam enters from the fire extinguishing passage (30), the sliding valve (302) is flushed to the topmost end under the action of pressure, namely the water drainage passage (20) is blocked, the fire extinguishing passage (30) is communicated with the water inlet passage (10), the high-pressure foam enters the water inlet passage (10) and is discharged, and the discharged high-pressure foam is accumulated above the floating roof, so that the fire extinguishing effect is achieved; at the moment that the high-pressure foam enters the fire extinguishing channel (30), the high-pressure foam can also break the sealing slide block (803) due to the huge pressure of the high-pressure foam, part of the high-pressure foam is discharged from the lower end of the auxiliary channel (50), and the buffer device (80) can effectively prevent the device and the water pipe from being damaged due to the overlarge pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450375.0A CN110193157B (en) | 2019-05-28 | 2019-05-28 | Shunting device for fire fighting and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450375.0A CN110193157B (en) | 2019-05-28 | 2019-05-28 | Shunting device for fire fighting and application method thereof |
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| CN110193157A CN110193157A (en) | 2019-09-03 |
| CN110193157B true CN110193157B (en) | 2021-04-27 |
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| CN201910450375.0A Active CN110193157B (en) | 2019-05-28 | 2019-05-28 | Shunting device for fire fighting and application method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110841216B (en) * | 2019-10-31 | 2021-02-19 | 安徽省国发石化设备有限责任公司 | A diverging device for fire control is put out a fire |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077730U (en) * | 1990-09-20 | 1991-05-29 | 张金魁 | Automatic water spray fire extinguisher |
| KR970010232B1 (en) * | 1994-05-31 | 1997-06-23 | Daewoo Electronics Co Ltd | Applying water valve of a washing machine |
| CN2385174Y (en) * | 1999-06-10 | 2000-06-28 | 高宝麟 | Running water pressure control draw off valve |
| US6357467B1 (en) * | 2000-03-27 | 2002-03-19 | Grinnell Corporation | Automatic water supply shutoff valve |
| JP4415169B2 (en) * | 2000-05-11 | 2010-02-17 | 株式会社光合金製作所 | Water drain valve structure with valve seat |
| JP2001340486A (en) * | 2000-06-05 | 2001-12-11 | Nohmi Bosai Ltd | Fire extinguishing sprinkler |
| US8177189B2 (en) * | 2006-11-06 | 2012-05-15 | The Viking Corporation | Fire protection control valve with rotating plug |
| CN201939922U (en) * | 2011-01-24 | 2011-08-24 | 芜湖世纪凯旋消防设备有限公司 | Pressurization opening valve |
| CN202266699U (en) * | 2011-09-28 | 2012-06-06 | 新乡市宇通阀门有限公司 | Self-cleaning sewage drive three-way valve |
| CN102678960A (en) * | 2012-05-30 | 2012-09-19 | 郑安犁 | Hydraulic driven diaphragm type drain valve |
| CN103968107B (en) * | 2014-05-05 | 2016-09-07 | 中国科学技术大学 | A kind of switchover control valve of aircraft hold fire extinguishing system state |
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Effective date of registration: 20210413 Address after: 312500 No. 88, kengli village, Ru'ao Town, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: Xinchang County jihehui harness Co.,Ltd. Address before: 236500 Bazhen street, Chaohu City, Anhui Province Applicant before: Zhu Wenjing |
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Effective date of registration: 20211026 Address after: 312500, No. 100, nanmenwai, Nanming street, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: XINCHANG COUNTY WANLIAN BEARING Co.,Ltd. Address before: 312500 No. 88, kengli village, Ru'ao Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: Xinchang County jihehui harness Co.,Ltd. |
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Denomination of invention: A diversion device for fire fighting and its application method Effective date of registration: 20211216 Granted publication date: 20210427 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: XINCHANG COUNTY WANLIAN BEARING Co.,Ltd. Registration number: Y2021330002550 |
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Date of cancellation: 20220926 Granted publication date: 20210427 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: XINCHANG COUNTY WANLIAN BEARING Co.,Ltd. Registration number: Y2021330002550 |
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Denomination of invention: A shunt device for fire extinguishing and its application method Effective date of registration: 20231024 Granted publication date: 20210427 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: XINCHANG COUNTY WANLIAN BEARING Co.,Ltd. Registration number: Y2023330002461 |