CN216169469U - Tank body fireproof device - Google Patents
Tank body fireproof device Download PDFInfo
- Publication number
- CN216169469U CN216169469U CN202122409485.8U CN202122409485U CN216169469U CN 216169469 U CN216169469 U CN 216169469U CN 202122409485 U CN202122409485 U CN 202122409485U CN 216169469 U CN216169469 U CN 216169469U
- Authority
- CN
- China
- Prior art keywords
- arc
- connecting pipe
- shaped connecting
- water inlet
- arc connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a tank body fireproof device, which comprises an arc-shaped connecting pipe and a protective layer, wherein the arc-shaped connecting pipe is as follows: there are two and symmetric distribution, two arc connecting pipes are hollow arc connecting pipe, rotate through the pivot between the left end of two arc connecting pipes and connect, the upper surface right-hand member of two arc connecting pipes all rotates and is connected with the connecting block, the arc connecting pipe trailing flank right-hand member of front side is equipped with the sealing rubber who installs with the connecting block cooperation, the equal ring array in both ends is provided with the fixed plate about the extrados of arc connecting pipe, the arc connecting pipe lateral surface of rear side is equipped with the water intake component, the inside of arc connecting pipe all is equipped with water conservancy diversion mechanism, the inoxidizing coating: be located between the intrados of two arc connecting pipes, this jar body firebreak device cools down the surface of thermal insulation material, avoids outside temperature to last the rising to the influence of thermal-insulated effect, and isolated flame improves the fire prevention effect of whole device to stretching of jar body direction.
Description
Technical Field
The utility model relates to the technical field of tank body fire prevention, in particular to a tank body fire prevention device.
Background
The oil storage tank is a container for storing oil products, is a main facility of an oil depot, is an oil source interface of an oil delivery pipe in pipeline transportation, can be divided into an above-ground oil tank, an underground oil tank and a cave oil tank according to the building characteristics, and is generally in the shapes of a vertical cylinder, a horizontal cylinder, a sphere and the like.
In the use of oil storage tank, the most important is to the fire protection of the jar body, avoids high temperature to the transmission of jar internal portion, prevents to the storage thing of jar internal portion to exert an influence, and the fire protection commonly used sets up the one deck heat insulating mattress mostly at the lateral surface of the jar body, blocks the transmission of outside temperature to jar internal portion.
However, due to the difference of heat insulation effects, as the external temperature continuously rises, the heat insulation layer cannot completely block the heat, the temperature can be gradually transferred to the inside of the tank body, the heat insulation effect is affected, and the fireproof effect of the tank body is reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the existing defects, and provide a tank body fireproof device, which is used for cooling the surface of a heat insulation material, avoiding the influence of continuous rise of external temperature on the heat insulation effect, improving the fireproof effect of the whole device and effectively solving the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a tank body fire protection device comprises an arc-shaped connecting pipe and a protection layer;
arc connecting pipe: the two arc-shaped connecting pipes are symmetrically distributed, the two arc-shaped connecting pipes are hollow arc-shaped connecting pipes, the left ends of the two arc-shaped connecting pipes are rotatably connected through a rotating shaft, the right ends of the upper surfaces of the two arc-shaped connecting pipes are rotatably connected with connecting blocks, the right end of the rear side surface of the arc-shaped connecting pipe at the front side is provided with sealing rubber which is matched with the connecting blocks for installation, the upper end and the lower end of the outer arc surface of each arc-shaped connecting pipe are provided with fixing plates in an annular array mode, the outer side surface of the arc-shaped connecting pipe at the rear side is provided with a water inlet component, and a flow guide mechanism is arranged inside each arc-shaped connecting pipe;
protective layer: be located between the intrados of two arc connecting pipes, the extrados of inoxidizing coating all with the laminating of the intrados of arc connecting pipe, the upper end of inoxidizing coating is equipped with the hole of stepping down of installing with the fixed plate cooperation, cools down the surface of thermal insulation material, avoids outside temperature to last the rising to the influence of thermal-insulated effect, isolated flame to stretching of jar body direction, for jar body provides better fire protection, improves the fire prevention effect of whole device, avoids a jar body to receive the influence of outside high temperature.
The device further comprises a single chip microcomputer, wherein the single chip microcomputer is arranged at the front end of the outer arc surface of the arc-shaped connecting pipe on the front side, and the input end of the single chip microcomputer is electrically connected with an external power supply to control the starting and stopping of the whole device.
Further, the inoxidizing coating includes refractory ceramic, thermal-insulated cotton and thermal-insulated rubber, refractory ceramic is located between the intrados of two arc connecting pipes, and refractory ceramic's extrados all laminates with the intrados of arc connecting pipe, and refractory ceramic's intrados is equipped with thermal-insulated cotton, and thermal-insulated cotton intrados is equipped with thermal-insulated rubber, and the whole upper end that refractory ceramic, thermal-insulated cotton and thermal-insulated rubber constitute is equipped with the hole of stepping down with fixed plate cooperation installation, provides thermal-insulated protection for the jar body.
Further, still include temperature sensor, temperature sensor sets up in the arc connecting pipe upper surface of front side, and temperature sensor's sense terminal and refractory ceramic's extrados laminating, and temperature sensor's output electricity is connected in the input of singlechip, detects the temperature on refractory ceramic surface.
Further, the water inlet part includes first inlet channel, second inlet channel and solenoid valve, first inlet channel sets up in the arc connecting pipe upper surface water inlet department of rear side, and the second inlet channel sets up in the arc connecting pipe extrados right-hand member water inlet department of rear side, and the middle part of first inlet channel and second inlet channel all establishes ties there is the solenoid valve, and the input of solenoid valve all electricity is connected in the output of singlechip, the leading-in of control flow.
Further, water conservancy diversion mechanism includes baffle and drip hole, the baffle sets up middle part between the upper and lower inner wall of arc connecting pipe, is linked together through the intercommunicating pore at sealing rubber middle part between two arc connecting pipes, and the inside one end that is close to refractory ceramics of arc connecting pipe all is linked together with first inlet channel, and the inside one end of keeping away from refractory ceramics of arc connecting pipe all is linked together with the second inlet channel, is provided with the drip hole along equal annular array in the inside diapire of arc connecting pipe, avoids cooling to refractory ceramics, avoids the high temperature.
Further, water curtain shower nozzle and oblique type hole are still included to water conservancy diversion mechanism, oblique type hole respectively annular array sets up in the outer edge of the inside diapire of arc-shaped connection pipe, and the inside in oblique type hole all is equipped with the water curtain shower nozzle, and isolated flame is to stretching of jar body direction.
Compared with the prior art, the utility model has the beneficial effects that: this jar body firebreak device has following benefit:
1. detect the temperature of refractory ceramic surface through temperature sensor to give the singlechip with the result transmission that detects, when the temperature on refractory ceramic surface is too high but when not exceeding the warning line, through the hole that drips outside rivers and drip to refractory ceramic's extrados, cool down the surface of thermal insulation material, avoid outside temperature to continuously rise the influence to thermal-insulated effect.
2. When the temperature of refractory ceramics exceeded the warning line, through the blowout of water curtain shower nozzle with outside high-pressure rivers, at the water curtain that forms all around of the jar body, isolated flame is to stretching of jar body direction, for jar body provides better fire protection, improves the fire prevention effect of integrated device, avoids jar body to receive the influence of outside high temperature.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an arc-shaped connection pipe according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;
FIG. 4 is a schematic structural view of the inner section of the arc-shaped connecting tube of the present invention.
In the figure: the water curtain comprises an arc-shaped connecting pipe 1, a fixing plate 2, sealing rubber 3, a protective layer 4, refractory ceramic 41, heat insulation cotton 42, heat insulation rubber 43, a yielding hole 5, a connecting block 6, a water inlet component 7, a first water inlet pipeline 71, a second water inlet pipeline 72, an electromagnetic valve 73, a flow guide mechanism 8, a partition plate 81, a water curtain spray head 82, a water dripping hole 83, an inclined hole 84, a temperature sensor 9 and a single chip microcomputer 10.
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.
Referring to fig. 1-4, the present embodiment provides a technical solution: a tank body fire protection device comprises an arc-shaped connecting pipe 1 and a protection layer 4;
arc connecting pipe 1: the two arc connecting pipes 1 are symmetrically distributed, the arc connecting pipes 1 are conveniently connected with the tank body, the two arc connecting pipes 1 are hollow arc connecting pipes and provide space for the circulation of water flow, the left ends of the two arc connecting pipes 1 are rotatably connected through a rotating shaft, the right ends of the upper surfaces of the two arc connecting pipes 1 are rotatably connected with a connecting block 6, the right end of the rear side surface of the arc connecting pipe 1 at the front side is provided with sealing rubber 3 which is matched with the connecting block 6, an external bolt penetrates through a through hole in the connecting block 6 at the rear side and is in threaded connection with a thread groove in the connecting block 6 at the front side, the two connecting blocks 6 are close to each other, the connecting block 6 is rotatably connected with the arc connecting pipes 1, the right ends of the two arc connecting pipes 1 are driven to rotate relatively, the sealing rubber 3 is deformed, the joint of the two sealing rubbers 3 is sealed, and the leakage of the water flow is avoided, the upper end and the lower end of the outer arc surface of the arc connecting pipe 1 are provided with the fixing plates 2 in an annular array mode, the whole device is conveniently fixed, the outer side surface of the arc connecting pipe 1 at the rear side is provided with the water inlet component 7, the flow guide mechanism 8 is arranged inside the arc connecting pipe 1, the single chip microcomputer 10 is arranged at the front end of the outer arc surface of the arc connecting pipe 1 at the front side, the input end of the single chip microcomputer 10 is electrically connected with an external power supply and used for controlling the starting and stopping of the whole device, the water inlet component 7 comprises a first water inlet pipeline 71, a second water inlet pipeline 72 and a solenoid valve 73, the first water inlet pipeline 71 is electrically connected with the water inlet on the upper surface of the arc connecting pipe 1 at the rear side, the second water inlet pipeline 72 is arranged at the water inlet at the right end of the outer arc connecting pipe 1 at the rear side, the solenoid valve 73 is connected in series with the middle parts of the first water inlet pipeline 71 and the second water inlet pipeline 72, and the input end of the solenoid valve 73 is connected with the output end of the single chip microcomputer 10, a first water inlet pipeline 71 is communicated with an external water tank, a second water inlet pipeline 72 is communicated with an external high-pressure water tank, and the introduction of water flow is regulated and controlled by opening and closing an electromagnetic valve 73;
and (4) protective layer: the anti-collision device is positioned between the inner arc surfaces of the two arc-shaped connecting pipes 1, the outer arc surface of the protective layer 4 is attached to the inner arc surfaces of the arc-shaped connecting pipes 1, the upper end of the protective layer 4 is provided with a stepping hole 5 which is installed in a matched manner with the fixing plate 2, the protective layer 4 comprises refractory ceramics 41, heat insulation cotton 42 and heat insulation rubber 43, the refractory ceramics 41 is positioned between the inner arc surfaces of the two arc-shaped connecting pipes 1, the outer arc surface of the refractory ceramics 41 is attached to the inner arc surfaces of the arc-shaped connecting pipes 1, the inner arc surface of the refractory ceramics 41 is provided with the heat insulation cotton 42, the inner arc surface of the heat insulation cotton 42 is provided with the heat insulation rubber 43, the upper end of the whole body formed by the refractory ceramics 41, the heat insulation cotton 42 and the heat insulation rubber 43 is provided with the stepping hole 5 which is installed in a matched manner with the fixing plate 2, the heat insulation cotton 42 and the heat insulation rubber 43 can block the transmission of the direction of the external high-temperature tank body, the refractory ceramics 41 has good fire resistance, and can prevent the flame from affecting the tank body, the temperature sensor 9 is arranged on the upper surface of the arc-shaped connecting pipe 1 on the front side, the detection end of the temperature sensor 9 is attached to the outer arc surface of the refractory ceramic 41, the output end of the temperature sensor 9 is electrically connected to the input end of the single chip microcomputer 10, the temperature of the surface of the refractory ceramic 41 is detected through the temperature sensor 9, the detection result is transmitted to the single chip microcomputer 10, the flow guide mechanism 8 comprises a partition plate 81 and water dripping holes 83, the partition plate 81 is arranged in the middle between the upper inner wall and the lower inner wall of the arc-shaped connecting pipe 1, the two arc-shaped connecting pipes 1 are communicated through a communicating hole in the middle of sealing rubber 3, one ends, close to the refractory ceramic 41, in the arc-shaped connecting pipe 1 are communicated with the first water inlet pipeline 71, one ends, far away from the refractory ceramic 41, in the arc-shaped connecting pipe 1 are communicated with the second water inlet pipeline 72, the water dripping holes 83 are arranged in the inner bottom wall of the arc-shaped connecting pipe 1 along an annular array, the flow guiding mechanism 8 further comprises a water curtain nozzle 82 and an inclined hole 84, the inclined holes 84 are respectively arranged on the outer edge of the inner bottom wall of the arc-shaped connecting pipe 1 in an annular array mode, the water curtain nozzle 82 is arranged inside each inclined hole 84, when the temperature of the surface of the refractory ceramic 41 is too high and does not exceed a warning line, water flows are dripped to the outer arc surface of the refractory ceramic 41 through the dripping holes 83, the refractory ceramic 41 is cooled, the temperature is prevented from being too high, when the temperature of the refractory ceramic 41 exceeds the warning line, high-pressure water flows are sprayed out through the water curtain nozzle 82, through the matching of the plurality of water curtain nozzles 82, a water curtain is formed around the tank body, the spreading of flame to the tank body direction is isolated, the temperature of the tank body is prevented from being continuously increased, and fire protection is provided for the tank body.
The working principle of the tank body fire protection device provided by the utility model is as follows: when in use, the protective layer 4 is sleeved on the outer arc surface of the tank body, the inner arc surface of the heat insulation rubber 43 is tightly attached to the outer arc surface of the tank body, then the two arc-shaped connecting pipes 1 are sleeved on the outer arc surface of the refractory ceramic 41, the two connecting blocks 6 are close to each other by passing an external bolt through the through hole on the connecting block 6 at the rear side and being in threaded connection with the thread groove on the connecting block 6 at the front side, because the connecting blocks 6 are rotationally connected with the arc-shaped connecting pipes 1, the right ends of the two arc-shaped connecting pipes 1 are driven to relatively rotate, the sealing rubber 3 is deformed, the joint of the two sealing rubbers 3 is sealed, then the whole device is fixed on the tank body by sequentially passing through the round hole and the abdicating hole 5 on the tank body through the external fixing bolt and being in threaded connection with the thread fixing hole on the tank body, then the first water inlet pipeline 71 is communicated with the external water tank, and the second water inlet pipeline 72 is communicated with the external high-pressure water tank, the heat insulation cotton 42 and the heat insulation rubber 43 can block the transmission of the direction of the tank body of the external high-temperature tank, the refractory ceramic 41 has good fire resistance and prevents flame from influencing the tank body, the temperature of the surface of the refractory ceramic 41 is detected through the temperature sensor 9, the detected result is transmitted to the single chip microcomputer 10, when the temperature of the surface of the refractory ceramic 41 is too high but does not exceed a warning line, the electromagnetic valve 73 on the first water inlet pipeline 71 is opened through the regulation and control of the single chip microcomputer 10, so that external water flow enters one end, close to the tank body, of the arc-shaped connecting pipe 1 and drips to the outer arc surface of the refractory ceramic 41 through the water dripping hole 83 to cool the refractory ceramic 41 and avoid the overhigh temperature, when the temperature of the refractory ceramic 41 exceeds the warning line, the electromagnetic valve 73 on the second water inlet pipeline 72 is opened on the premise of opening the first water inlet pipeline 71, and external high-pressure water flow enters one end, far away from the tank body, of the arc-shaped connecting pipe 1, and the high-pressure water flow is sprayed out through the water curtain nozzles 82, and a water curtain is formed around the tank body through the matching of the plurality of water curtain nozzles 82, so that the flame is isolated from spreading towards the tank body, the temperature of the refractory ceramics 41 is prevented from being continuously raised, and the fire protection is provided for the tank body.
It is to be noted that the single chip microcomputer 10 disclosed in the above embodiments may be a PIC16F1823-I/P single chip microcomputer, the electromagnetic valve 73 and the temperature sensor 9 may be freely configured according to an actual application scenario, the electromagnetic valve 73 may be a ZCG high-temperature electromagnetic valve, the temperature sensor 9 may be an IMG-5449 temperature sensor, and the single chip microcomputer 10 controls the electromagnetic valve 73 and the temperature sensor 9 to operate by a method commonly used in the prior art.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a jar body firebreak device which characterized in that: comprises an arc connecting pipe (1) and a protective layer (4);
arc connecting pipe (1): the two arc-shaped connecting pipes are symmetrically distributed, the two arc-shaped connecting pipes (1) are hollow arc-shaped connecting pipes, the left ends of the two arc-shaped connecting pipes (1) are rotatably connected through a rotating shaft, the right ends of the upper surfaces of the two arc-shaped connecting pipes (1) are rotatably connected with a connecting block (6), sealing rubber (3) installed in a matched mode with the connecting block (6) is arranged at the right end of the rear side of the arc-shaped connecting pipe (1) on the front side, fixing plates (2) are arranged at the upper end and the lower end of the outer arc surface of the arc-shaped connecting pipe (1) in an annular array mode, a water inlet component (7) is arranged on the outer side surface of the arc-shaped connecting pipe (1) on the rear side, and a flow guide mechanism (8) is arranged inside the arc-shaped connecting pipe (1);
protective layer (4): be located between the intrados of two arc connecting pipes (1), the extrados of inoxidizing coating (4) all laminates with the intrados of arc connecting pipe (1), and the upper end of inoxidizing coating (4) is equipped with the hole of stepping down (5) of installing with fixed plate (2) cooperation.
2. The tank fire protection device of claim 1, wherein: the power supply device is characterized by further comprising a single chip microcomputer (10), wherein the single chip microcomputer (10) is arranged at the front end of the outer arc surface of the arc-shaped connecting pipe (1) on the front side, and the input end of the single chip microcomputer (10) is electrically connected with an external power supply.
3. The tank fire protection device of claim 2, wherein: the inoxidizing coating (4) are including refractory ceramics (41), thermal-insulated cotton (42) and thermal-insulated rubber (43), refractory ceramics (41) are located between the intrados of two arc connecting pipes (1), the extrados of refractory ceramics (41) all with the intrados laminating of arc connecting pipe (1), the intrados of refractory ceramics (41) is equipped with thermal-insulated cotton (42), the intrados of thermal-insulated cotton (42) is equipped with thermal-insulated rubber (43), refractory ceramics (41), the whole upper end that thermal-insulated cotton (42) and thermal-insulated rubber (43) constitute is equipped with the hole of stepping down (5) of installing with fixed plate (2) cooperation.
4. A tank fire protection device according to claim 3, wherein: still include temperature sensor (9), temperature sensor (9) set up in arc connecting pipe (1) upper surface of front side, and the sense terminal of temperature sensor (9) and the outer cambered surface laminating of refractory ceramics (41), the output electricity of temperature sensor (9) is connected in the input of singlechip (10).
5. A tank fire protection device according to claim 3, wherein: the water inlet component (7) comprises a first water inlet pipeline (71), a second water inlet pipeline (72) and a solenoid valve (73), the first water inlet pipeline (71) is arranged at a water inlet on the upper surface of the arc-shaped connecting pipe (1) on the rear side, the second water inlet pipeline (72) is arranged at a water inlet on the right end of the outer arc surface of the arc-shaped connecting pipe (1) on the rear side, the middles of the first water inlet pipeline (71) and the second water inlet pipeline (72) are all connected in series with the solenoid valve (73), and the input end of the solenoid valve (73) is electrically connected to the output end of the single chip microcomputer (10).
6. The tank fire protection device of claim 5, wherein: flow guide mechanism (8) are including baffle (81) and drip hole (83), baffle (81) set up middle part between the upper and lower inner wall of arc connecting pipe (1), are linked together through the intercommunicating pore at sealing rubber (3) middle part between two arc connecting pipes (1), and the inside one end of being close to refractory ceramics (41) of arc connecting pipe (1) all is linked together with first inlet channel (71), and the inside one end of keeping away from refractory ceramics (41) of arc connecting pipe (1) all is linked together with second inlet channel (72), is provided with drip hole (83) along equal annular array in the inside diapire of arc connecting pipe (1).
7. The tank fire protection device of claim 1, wherein: the flow guide mechanism (8) further comprises a water curtain spray head (82) and inclined holes (84), wherein the inclined holes (84) are respectively arranged on the outer edge of the inner bottom wall of the arc-shaped connecting pipe (1) in an annular array mode, and the water curtain spray head (82) is arranged inside each inclined hole (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122409485.8U CN216169469U (en) | 2021-10-04 | 2021-10-04 | Tank body fireproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122409485.8U CN216169469U (en) | 2021-10-04 | 2021-10-04 | Tank body fireproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216169469U true CN216169469U (en) | 2022-04-05 |
Family
ID=80860865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122409485.8U Active CN216169469U (en) | 2021-10-04 | 2021-10-04 | Tank body fireproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216169469U (en) |
-
2021
- 2021-10-04 CN CN202122409485.8U patent/CN216169469U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204739259U (en) | A water heater that is used for relief valve of water heater and has it | |
| CN207848993U (en) | A kind of high steam pipeline leakage protection from hazards device | |
| CN105066447A (en) | Electromagnetic heating boiler system | |
| CN216169469U (en) | Tank body fireproof device | |
| CN208332243U (en) | A kind of steam boiler power failure automatic water replenishing device | |
| CN204880724U (en) | Electromagnetic heating boiler system | |
| CN210265923U (en) | High-temperature-resistant sealing stop valve | |
| CN207745439U (en) | Electrical cabinet flames of anger fire extinguishing cooling system | |
| CN203692497U (en) | Fermentation tank capable of controlling temperature in real time | |
| CN212615734U (en) | Temperature adjusting device for hydraulic station of elevator | |
| CN211876356U (en) | Bathing water preparing system | |
| CN206724500U (en) | A kind of non-bearing type water tank for water heater | |
| CN112032149A (en) | Temperature adjusting device for hydraulic station of elevator | |
| CN206094216U (en) | Kitchen range shower nozzle heat sink | |
| CN206112137U (en) | Multi -level high temperature resistant special type ball valve | |
| CN213573735U (en) | Prevent fire door with cooling function | |
| CN212509587U (en) | Water-saving valve device for water tap | |
| CN205349560U (en) | Air jet system of automobile -used gas system | |
| CN219954636U (en) | Pipeline heating device with good energy-saving effect | |
| CN204792315U (en) | Intermediate layer oil tank for transformer | |
| CN208221891U (en) | The vertical hydrophobic anti-scald device of heat supply pipeline eminence | |
| CN212610740U (en) | Gas diffusing tower convenient for automatically adjusting pressure | |
| CN218755400U (en) | Kiln electrode hole weeping cooling leakage-proof device and kiln for glass production | |
| CN208968054U (en) | A kind of intelligent environment-friendly energy-saving heat exchange storage type electric water heating system equipment | |
| CN208504757U (en) | A kind of press-bearing water tank pressure equaliser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |