CN107355581B - Rigid fireproof box - Google Patents
Rigid fireproof box Download PDFInfo
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- CN107355581B CN107355581B CN201610929739.XA CN201610929739A CN107355581B CN 107355581 B CN107355581 B CN 107355581B CN 201610929739 A CN201610929739 A CN 201610929739A CN 107355581 B CN107355581 B CN 107355581B
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- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000003063 flame retardant Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 32
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 31
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 31
- 239000011575 calcium Substances 0.000 claims description 31
- 229910052791 calcium Inorganic materials 0.000 claims description 31
- 239000010425 asbestos Substances 0.000 claims description 29
- 229910052895 riebeckite Inorganic materials 0.000 claims description 29
- 230000009970 fire resistant effect Effects 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 42
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 239000011229 interlayer Substances 0.000 description 16
- 230000007246 mechanism Effects 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Special Wing (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to a rigid fireproof box, which mainly solves the problem of poor safety in the prior art. The invention adopts the technical scheme that the rigid fireproof box comprises at least two sealing surfaces, the box door is arranged on at least one sealing surface, the flame-retardant rubber sealing strips are arranged between the adjacent sealing surfaces, each sealing surface is composed of sandwich plates, and each sandwich plate is composed of an upper stainless steel insulating plate, a flame-retardant high-temperature-resistant material sandwich layer and a lower stainless steel insulating plate.
Description
Technical Field
The invention relates to a rigid fireproof box.
Background
Important equipment or devices such as valve actuating mechanisms, electrical switches, stirrers and the like in the current petrochemical field are not provided with fire protection measures, and after a fire disaster occurs around, the equipment or devices are often in flame surrounding, and fail in a short time, so that the fire disaster is not controlled.
Currently, some equipment and facilities are coated with fire-retardant coating materials, such as fire-proof dikes, tall steel structures and the like, but the coating quality of the fire-retardant coating materials is often difficult to meet the use requirements, the problems of coating falling off, insufficient fire-retardant time and the like occur in use are prominent, and the fire-retardant coating materials are not suitable for equipment with movable parts, such as valves and the like.
Patent CN 202442067U discloses a fireproof cover of a wind generating set, which mainly achieves the aim of fire prevention by coating a fireproof coating with certain viscosity on the surface of an engine subject and using fiber cloth in the fireproof coating. The range of application of the fireproof cover disclosed in the patent is greatly limited because the fireproof cover needs to be adhered to the surface of the machine body.
As seen from a plurality of accidents at home and abroad, after a fire disaster occurs, some valves lose control of the whole valve due to the failure of a protective layer of a power line, and the process operation cannot be started, so that the fire scene is out of control.
Disclosure of Invention
The invention aims to solve the technical problem of poor safety in the prior art and provides a novel rigid fireproof box. The fireproof box has the advantage of good safety.
In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a rigidity flame proof case, includes two at least sealed faces, is equipped with the chamber door on at least one sealed face, sets up fire-retardant rubber sealing strip between the adjacent sealed face, and every sealed face is the sandwich panel and constitutes, and every sandwich panel comprises upper stainless steel insulation board, resistant high temperature resistant material intermediate layer, lower stainless steel insulation board, and upper stainless steel insulation board is located the upper portion of resistant high temperature resistant material intermediate layer, and lower stainless steel insulation board is located the lower part of resistant high temperature resistant material intermediate layer, resistant high temperature resistant material intermediate layer includes calcium/silicate fiber, asbestos, wire, high temperature binder, and the wire in the intermediate layer provides the support for asbestos and calcium/silicate fiber, and asbestos layer and calcium/silicate fiber alternate arrangement, and the thickness of every layer is 2-4mm, and the wire wears to link together asbestos layer and calcium/silicate fiber layer, forms a complete sandwich panel, and high temperature binder coats between asbestos layer and calcium/silicate fiber layer, forms a complete intermediate layer.
In the above technical solution, preferably, the stainless steel insulating plate has a thickness of 3-6mm.
In the above technical scheme, preferably, in the interlayer of the fire-resistant and high-temperature-resistant material, the volume fraction of the calcium/silicate fiber is 60-90%, and the volume fraction of the asbestos is 20-30%.
In the above technical scheme, preferably, the metal wire is an iron wire or a stainless steel wire, and the diameter of the metal wire is 2-3mm.
In the above technical scheme, preferably, the lower stainless steel insulating plate needs to meet the requirement of burn resistance, maintain sufficient rigidity and integrity under the continuous action of flame, do not burn and deform at 1093 ℃ of hydrocarbon fire and 1300 ℃ of jet fire, and resist explosion impact of 2.9bar, and the temperature in the box body does not exceed 50 ℃; the sealing strip is arranged in the crack at the adjacent sealing surface, and can expand rapidly under the high temperature condition so as to prevent flame from entering.
This patent provides a novel key part thermal-insulated resistant protection measure, according to the appearance and the function of protected object, the custom-made physical isolation layer of putting the whole object into play and keep apart flame and thermal effect completely in the settlement time after the conflagration takes place around it with the normal operation and the detection maintenance that do not influence this equipment, for the normal start-up of protected object provides sufficient buffering time. According to the performance requirements of the protected objects, the burn-resistant and heat insulation time can be customized, and the operation conditions of the equipment in a fire disaster state can be completely met. The fire extinguishing device can effectively protect key devices such as a valve actuating mechanism, an instrument, a stirrer and the like from normally working in preset time when flame is surrounded, and provides enough operation time for realizing process fire extinguishment. This patent can make the protection object avoid the influence of external weather condition in daily operation, increase of service life, improve the reliability of equipment. The better technical effect is achieved.
Drawings
Fig. 1 is a schematic structural view of a sandwich plate according to the invention.
In fig. 1, a stainless steel insulating plate is arranged on the upper surface 1; 2 a material interlayer with burning resistance and high temperature resistance; and 3, a stainless steel insulating plate.
FIG. 2 is a schematic diagram of the overall structure of the fire-resistant box
In fig. 2, 1 a fire-resistant box wall; 2 fireproof door; 3, a valve executing mechanism in the fireproof box; 4, fastening pieces of the fireproof door; 5 a sealing gasket between the fire-proof box and the actuating mechanism rod; 6 valve actuator rod.
The present invention is further illustrated by, but not limited to, the following examples.
Detailed Description
[ example 1 ]
The utility model provides a rigidity flame proof case, this patent flame proof case is a confined box structure, and the box shape is the cuboid, and this box comprises 6 sealed faces, wherein is equipped with the chamber door in sealed face department, sets up fire-retardant rubber sealing strip between the adjacent sealed face, and the daily inspection maintenance of opening of being convenient for.
Each sealing surface is composed of a sandwich plate, as shown in fig. 1, each sandwich plate is composed of an upper stainless steel insulating plate (thickness 3 mm), a burning-resistant high-temperature-resistant material sandwich layer and a lower stainless steel insulating plate (thickness 3 mm). The interlayer of the fire-resistant and high-temperature-resistant material comprises calcium/silicate fibers (volume ratio of 60%), asbestos (volume ratio of 30%), metal wires and a high-temperature binder, wherein the metal wires in the interlayer mainly play a supporting role and provide a support for the asbestos and the calcium/silicate fibers, the metal wires adopt iron wires, and the diameter of the metal wires is 2mm. The asbestos layers are arranged alternately with the calcium/silicate fiber layers, each layer having a thickness of about 2mm. The metal wires are used for penetrating and connecting the asbestos layer and the calcium/silicate fiber layer together to form a complete sandwich plate. The high temperature adhesive is coated between the asbestos layer and the calcium/silicate fiber layer, and the asbestos layer and the calcium/silicate fiber layer are fixed together to form a complete interlayer.
The stainless steel insulating plate can effectively prevent flame from spreading from the outside of the box body to the inside of the box body, the stainless steel insulating plate needs to meet the burning-resistant requirement, sufficient rigidity and integrity are kept under the continuous effect of the flame, and sealing strips are arranged in the cracks at the adjacent sealing surfaces and can expand rapidly under the high temperature condition so as to prevent the flame from entering. The heat-resistant high-temperature-resistant material interlayer has the functions of heat insulation, cutting off a heat transfer path, preventing external heat from being led into the box body in a preset time, and ensuring that the temperature in the box body is kept within an acceptable range. The material adopted by the interlayer needs to meet the requirements of burning resistance and high temperature resistance, and heat transfer is effectively prevented under the continuous action of flame. The lower stainless steel insulating plate has the function of rigid support, so that the box body is effectively attached to the protected object without affecting the normal action of the box body. The structure and material should be such that it does not burn, deform and withstand the explosive shock of 3BAR at 1093 ℃ and 1300 ℃ of the fire of hydrocarbon and the temperature inside the tank does not exceed 80 ℃ for a predetermined period of time.
The thickness and size of the case are determined according to the performance of the protection object.
To protect 5000m 3 The use of the rigid fire-resistant tank is illustrated by taking a tank bottom pipeline valve of the storage tank as an example.
The rigid fire box is disposed outside of the protected valve actuator. A box door is arranged at the box body, so that the inspection valve can be conveniently opened. The whole external dimension of the valve is 800mm multiplied by 600mm, so that the designed box body has the internal dimension of 900mm multiplied by 700mm, the enough movable space between the box body and the valve is ensured, and a box door with the dimension of 200mm multiplied by 200mm is arranged at the position of 300mm on the side surface of the box body. The box body and the connecting rod are sealed by flame-retardant sealing strips.
Because the opening time of the valve actuating mechanism is 10min, after the fire disaster happens around the valve, the valve is surrounded by flame of oil or flammable gas, the highest temperature of the flame is about 1093 ℃, if the fire disaster happens around the valve, the flame temperature is up to 1300 ℃, the explosion can occur around the valve in the case of fire disaster, and the maximum design explosion impact is 3bar, so the design protection time of the rigid fireproof cover is 40min, and enough time is reserved for emergency disposal of firefighters. Based on the protection time and fire conditions, the interlayer is made of calcium/silicate fiber and glass fiber materials, and based on the burn-resistant test experimental data, the thickness of the interlayer is not less than 100mm.
An opening is arranged at the joint of the bottom of the box body and the pipeline, so that a rod of the valve actuating mechanism can penetrate through the bottom of the box body.
[ example 2 ]
According to the conditions and steps described in embodiment 1, the fire-resistant box is a closed box structure, the box is ellipsoidal in shape and consists of two sealing surfaces, wherein a box door is arranged at one position, and a fire-resistant rubber sealing strip is arranged between the adjacent sealing surfaces, so that the fire-resistant box is convenient for daily opening, inspection and maintenance.
Each sealing surface is composed of sandwich plates as shown in figure 1, and each sandwich plate is composed of an upper stainless steel insulating plate (thickness 6 mm), a burning-resistant high-temperature-resistant material interlayer and a lower stainless steel insulating plate (thickness 6 mm). The interlayer of the fire-resistant and high-temperature-resistant material comprises calcium/silicate fibers (volume ratio of 70%), asbestos (volume ratio of 20%), metal wires and a high-temperature binder, wherein the metal wires in the interlayer mainly play a supporting role to provide a support for the asbestos and the calcium/silicate fibers, the metal wires adopt stainless steel wires, and the diameters of the metal wires are 3mm. The asbestos layers are arranged alternately with the calcium/silicate fiber layers, each layer having a thickness of about 4mm. The metal wires are used for penetrating and connecting the asbestos layer and the calcium/silicate fiber layer together to form a complete sandwich plate. The high temperature adhesive is coated between the asbestos layer and the calcium/silicate fiber layer, and the asbestos layer and the calcium/silicate fiber layer are fixed together to form a complete interlayer.
Firstly, designing an ellipsoidal box body according to the outline dimension of a protection object, wherein the average distance between the inner side of the box body and the protection object is 100mm, reserving a space for executing a mechanism rod at the bottom of the box body, and arranging a flame-retardant rubber sealing material between the rod and the box body. The bottom of the box body is supported on the valve body, and the executing mechanism can freely run in the box body. The box body has the advantages that a low-temperature space under a flame environment is provided for the valve actuating mechanism, all parts of the actuating mechanism are protected, the actuating mechanism is guaranteed to have running conditions under the flame environment, the valve is opened or closed according to the requirements of firefighters, combustion materials are cut off or transferred, and the fire extinguishing is assisted in the process.
[ example 3 ]
According to the conditions and steps described in embodiment 1, the fire-resistant box is a closed box structure, the box is square in shape and consists of 6 sealing surfaces, a box door is arranged at one position, and a fire-resistant rubber sealing strip is arranged between the adjacent sealing surfaces, so that the fire-resistant box is convenient to open daily, check and maintain.
Each sealing surface is composed of a sandwich plate, as shown in fig. 1, each sandwich plate is composed of an upper stainless steel insulating plate (thickness 5 mm), a burning-resistant high-temperature-resistant material sandwich layer and a lower stainless steel insulating plate (thickness 5 mm). The interlayer of the fire-resistant and high-temperature-resistant material comprises calcium/silicate fibers (volume ratio of 60%), asbestos (volume ratio of 20%), metal wires and a high-temperature binder, wherein the metal wires in the interlayer mainly play a supporting role to provide a support for the asbestos and the calcium/silicate fibers, the metal wires adopt stainless steel wires, and the diameters of the metal wires are 2.5mm. The asbestos layers are arranged alternately with the calcium/silicate fiber layers, each layer having a thickness of about 3mm. The metal wires are used for penetrating and connecting the asbestos layer and the calcium/silicate fiber layer together to form a complete sandwich plate. The high temperature adhesive is coated between the asbestos layer and the calcium/silicate fiber layer, and the asbestos layer and the calcium/silicate fiber layer are fixed together to form a complete interlayer.
The rigid fireproof box is large in size, enough movable space is reserved between the rigid fireproof box and the valve actuating mechanism, the box body provides a low-temperature environment for the actuating mechanism under a flame condition, the environment condition of normal operation of the valve actuating mechanism is met, an operation condition is provided for realizing emergency starting of the valve under a flame surrounding condition, the adverse condition that the valve is manually started after the actuating mechanism is burnt is avoided, and powerful guarantee is provided for fire extinguishment rescue.
Obviously, the valve actuating mechanism, the instrument, the stirrer and other key devices can be effectively protected, and can normally work in a preset time when flame is surrounded, so that enough operation time is provided for realizing process fire extinguishment. This patent can make the protection object avoid the influence of external weather condition in daily operation, increase of service life, improve the reliability of equipment, and the security is good. The better technical effect is achieved.
Claims (4)
1. The utility model provides a rigidity fire prevention case for petrochemical industry equipment, includes two at least sealed faces, is equipped with the chamber door on at least one sealed face, sets up fire-retardant rubber sealing strip between the adjacent sealed face, and every sealed face is the sandwich panel and constitutes, every sandwich panel by last stainless steel insulation board, resistant high temperature resistant material intermediate layer of burning, lower stainless steel insulation board is located the upper portion of resistant high temperature resistant material intermediate layer, lower stainless steel insulation board is located the lower part of resistant high temperature resistant material intermediate layer of burning, resistant high temperature resistant material intermediate layer includes calcium/silicate fiber, asbestos, wire, high temperature binder, and the wire in the intermediate layer is for asbestos and calcium/silicate fiber provides the support, and asbestos layer and calcium/silicate fiber layer alternate arrangement, and the thickness of every layer is 2-4mm, and the wire wears to link together asbestos layer and calcium/silicate fiber layer, forms a complete sandwich panel, and high temperature binder coats between asbestos layer and calcium/silicate fiber layer, forms a complete intermediate layer, wherein, in the resistant high temperature resistant material intermediate layer, calcium/silicate fiber volume is 60-70% and is 30% volume fraction.
2. The rigid fire resistant enclosure of claim 1 wherein the stainless steel insulating panel has a thickness of 3-6mm.
3. The rigid fire resistant enclosure of claim 1 wherein the wire is a wire or stainless steel wire having a diameter of 2-3mm.
4. The rigid fire resistant enclosure of claim 1 wherein the lower stainless steel insulating panel is required to meet burn resistant requirements, to maintain sufficient rigidity and integrity under flame sustaining conditions, to not burn, not deform and withstand 3bar explosion impact at 1093 ℃ hydrocarbon fire and 1300 ℃ jet fire, and to have an internal enclosure temperature of no more than 80 ℃; the sealing strip is arranged in the crack at the adjacent sealing surface, and can expand rapidly under the high temperature condition so as to prevent flame from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929739.XA CN107355581B (en) | 2016-10-31 | 2016-10-31 | Rigid fireproof box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929739.XA CN107355581B (en) | 2016-10-31 | 2016-10-31 | Rigid fireproof box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355581A CN107355581A (en) | 2017-11-17 |
| CN107355581B true CN107355581B (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929739.XA Active CN107355581B (en) | 2016-10-31 | 2016-10-31 | Rigid fireproof box |
Country Status (1)
| Country | Link |
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| CN (1) | CN107355581B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113171567B (en) * | 2021-05-14 | 2022-06-07 | 湖南威耐斯新材料科技有限公司 | Flexible valve executor fire prevention cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240507A (en) * | 1967-12-20 | 1971-07-28 | Basf Ag | Fire resisting doors having metallic outer layers |
| CN2401676Y (en) * | 1999-12-14 | 2000-10-18 | 韩魏 | Safe installed on wall |
| WO2003023175A1 (en) * | 2001-09-10 | 2003-03-20 | Bemofensterbau Gmbh | Fireproof profile component and method for production thereof |
| CN102454351A (en) * | 2010-10-22 | 2012-05-16 | 李宝龄 | Explosion-proof fireproof door |
| CN202353027U (en) * | 2011-11-24 | 2012-07-25 | 上海天逸电器有限公司 | Low-voltage power distribution control box with resistance to high temperature |
| WO2013078960A1 (en) * | 2011-11-28 | 2013-06-06 | Men Hongli | Fireproof waterproof storage box |
| CN103189588A (en) * | 2010-10-27 | 2013-07-03 | 博脉特（有限公司） | Watertight fire door and fire protection layer thereof |
-
2016
- 2016-10-31 CN CN201610929739.XA patent/CN107355581B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240507A (en) * | 1967-12-20 | 1971-07-28 | Basf Ag | Fire resisting doors having metallic outer layers |
| CN2401676Y (en) * | 1999-12-14 | 2000-10-18 | 韩魏 | Safe installed on wall |
| WO2003023175A1 (en) * | 2001-09-10 | 2003-03-20 | Bemofensterbau Gmbh | Fireproof profile component and method for production thereof |
| CN102454351A (en) * | 2010-10-22 | 2012-05-16 | 李宝龄 | Explosion-proof fireproof door |
| CN103189588A (en) * | 2010-10-27 | 2013-07-03 | 博脉特（有限公司） | Watertight fire door and fire protection layer thereof |
| CN202353027U (en) * | 2011-11-24 | 2012-07-25 | 上海天逸电器有限公司 | Low-voltage power distribution control box with resistance to high temperature |
| WO2013078960A1 (en) * | 2011-11-28 | 2013-06-06 | Men Hongli | Fireproof waterproof storage box |
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| CN107355581A (en) | 2017-11-17 |
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Effective date of registration: 20240307 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: China Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Patentee after: WENZHOU ANGONG MACHINERY SCIENCE AND TECHNOLOGY CO.,LTD. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Country or region before: China Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING Patentee before: WENZHOU ANGONG MACHINERY SCIENCE AND TECHNOLOGY CO.,LTD. |
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