CN203294598U - Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate - Google Patents
Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate Download PDFInfo
- Publication number
- CN203294598U CN203294598U CN2013202865844U CN201320286584U CN203294598U CN 203294598 U CN203294598 U CN 203294598U CN 2013202865844 U CN2013202865844 U CN 2013202865844U CN 201320286584 U CN201320286584 U CN 201320286584U CN 203294598 U CN203294598 U CN 203294598U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- tank body
- valve
- ammonium nitrate
- steam
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate. The device comprises a tank body of a storage tank, multiple control valve bodies and measurement elements. A heating system is arranged in the tank body of the storage tank. The tank body of the storage tank is divided into more than one layer. An independent heating system is arranged in each layer in the tank body of the storage tank. A rain-spraying master pipe around the wall is arranged at the position close to the top of the interior of the tank body of the storage tank. Multiple rain-spraying secondary pipes are communicated with the rain-spraying master pipe. Spraying holes facing downwards and having oblique angles of 15 to 45 degrees are distributed on the rain-spraying secondary pipes. The rain-spraying master pipe is communicated with a fire-fighting system water source pipe via a fire-fighting quick-opening motorized valve. A material-discharging hole and a circulation hole are arranged at the bottom of the tank body of the storage tank. The device is capable of automatically heating and automatically discharging material in a quantitative manner according to production needs.
Description
Technical field
The utility model relates to the device of charging, storage, circulation and the blowing of high-temperature high concentration ammonium nitrate solution in a kind of Chemical Manufacture, particularly the liquid ammonium nitrate storage of a kind of full automatic control high-temperature high concentration and emptying equipment.
Background technology
The raw MAT'L ammonium nitrate solution (more than 110 ℃) that present commercial explosive is used is normally standby to be put in large volume holding vessel after the broken fusing preparation of particle ammonium nitrate, and steam heated mode melts or is incubated.
The fragmentation of particle ammonium nitrate prepares the mode that ammonium nitrate solution is current modal a kind of commercial explosive raw material storage and preparation.Take graininess ammonium nitrate as raw material, be broken into powdery ammonium nitrate through dedicated crusher, helical feed is heated and is prepared into ammonium nitrate solution more than 110 ℃ with the stirring of hot water mixed melting in melting pot.
Traditional storage tank by container type tank body, tank base or top install that fire-fighting atmospheric air port, inlet, the liquid outlet offered on the steam heating pipe that spirals in heat indicator, tank body, tank body form from top to bottom, steam heating pipe be integral type from top to bottom, the heating pipe admission end is communicated with the steam source pipe by steam cock, and the heating pipe steam output end passes tank skin, stretch out that tank is outer to be communicated with Through Flow Line (TFL).Monitor mode is the manual observation temperature conditions, and the apparent temperature situation of change opens or closes steam cock and carries out temperature control.
There is following problem in this ammonium nitrate solution at commercial explosive (more than 110 ℃) preparation with storing mode:
1, particle ammonium nitrate is used easy crystallization when producing, and is transported to when the quick-fried manufacturing line of the people is done raw MAT'L and dissolves, causes the energy and manually wastes again.
2, first through crusher in crushing powdering ammonium nitrate, melt before the fusing of particle ammonium nitrate, this process is generally hand stock, high rotating speed is broken, has certain potential safety hazard again.
3, the aqueous system of fusing ammonium nitrate need to, from normal temperature through the process that saturated steam heats up again, cause consumption and the waste of steam thermal energy.
4, because the solution operating cycles is longer, solution temperature in storage tank can produce layering to be changed, the temperature of the different liquid levels of ie in solution can change, and the temperature difference is larger sometimes, simple in bottom or the temperature-measuring element at top can not reflect solution temperature in storage tank comprehensively; Even temperature-measuring element all is installed up and down, but can't confirm also whether temperature-measuring element is immersed in solution, and the temperature of its detection can not be confirmed as real solution temperature.
The work capacity of 5, manual observation temperature, control valve position is larger.
6, heating steam can not be according to the heating of the height of liquid level, often occur the heating steam pipe exposed, without the state of solution heating, not only waste heat energy, and have potential safety hazard.
7, a large amount of solution temperatures has inertia, and artificial being difficult for accurately controlled.When solution temperature surpasses limit temperature, even close the heating steam valve this moment, solution temperature still may continue to rise, and causes safety misadventure.
8, be in the condition of high temperature in production process, the manual control blowing is both dangerous also inaccurate, and increases labor strength.
Summary of the invention
For in prior art with particle ammonium nitrate as civil explosive industry produce raw material energy waste, working strength large, have potential safety hazard, be difficult for the problems such as accurately controls, the purpose of this utility model is to provide the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration and stores and discharging device.
The technical solution of the utility model is:
The liquid ammonium nitrate storage of a kind of full automatic control high-temperature high concentration and emptying equipment, this equipment comprises storage tank tank body, a plurality of control valve body and measuring cell, be provided with heating system in described storage tank tank body, more than described storage tank tank body is divided into one deck, in each layer storage tank tank body, independently heating system is installed;
Be provided with ring wall female pipe that drenches with rain in described storage tank tank interior near the locus at top, be communicated with several son pipes that drenches with rain on female pipe that drenches with rain, upper 15 ° ~ 45 ° perforates in a plurality of oblique angles mouth spray down of laying of the described son pipe that drenches with rain, female pipe that drenches with rain is driven soon motorized valve by fire-fighting and is communicated with the fire-fighting system water source tube;
Bottom at described storage tank tank body offers tapping hole, tapping hole valve, electromagnetic flow meter after the first hand valve, the front valve of blowing pump, blowing pump, blowing pump enter produces liquid ammonium nitrate storage tank, and connect blowing after valve rush steam electromagnetic valve before the blowing pump, blowing rushes the steam electromagnetic valve other end and is communicated with the female pipe of heating steam source of the gas;
Bottom at described storage tank tank body offers circulation port, circulation port is through the second hand valve, circulation valve, selection triple valve, circulation pump, be communicated to again the inlet point at storage tank tank body top, and connecting the circulating flushing steam electromagnetic valve after circulation valve, circulating flushing steam electromagnetic valve other end is communicated with the female pipe of heating steam source of the gas; When selecting triple valve to be communicated with position as for material loading, select triple valve to connect liquid ammonium nitrate tank car and namely can be used as the use of material loading loop.
As preferred version, described storage tank tank body of the present utility model is divided into bottom, lower floor, middle level and upper strata, four independently heating system be arranged on respectively described bottom in the storage tank tank body, lower floor, middle level and upper strata.
As preferred version, the heating system that the utility model is arranged on the bottom of described storage tank tank body is with the heating of plane curved tube form, is arranged on the heating system on lower floor, middle level and upper strata of described storage tank tank body all with ring wall coil form heating from top to down.
As preferred version, heating system described in the utility model comprises four coil pipes, the admission port of described four coil pipes passes respectively tank skin and is connected with the female pipe of heating steam source of the gas by bottom, lower floor, middle level, upper strata steam electromagnetic valve, and the steam outlet of four coil pipes passes respectively tank skin and is communicated with the Steam Recovery pipe.
As preferred version, the utility model is installed for the steam main that cuts off whole equipment vapour source and is turn-offed fast motorized valve on the female pipe of described heating steam source of the gas.
As preferred version, the top of described storage tank tank body of the present utility model is equipped with radar level gauge, on the sidewall of each layer storage tank tank body respectively correspondence near-bottom temperature sensor, lower floor's temperature sensor, middle level temperature sensor, upper strata temperature sensor are installed.
As preferred version, the top of described storage tank tank body of the present utility model is provided with the fire-fighting atmospheric air port, porthole and access hole.
As preferred version, each measuring cell of this equipment is connected and is connected with PLC with control valve body, adopts PLC to control; PLC is connected with the main frame communication, and the mode of operation of this equipment and processing parameter all show and control by computer display or touch-screen.
The beneficial effects of the utility model are: the utility model provide a kind of can be according to liquid level and ammonium nitrate solution temperature automatic heating, according to Production requirement automatic ration blowing, liquid ammonium nitrate in automatic circulation device during the liquid temperature layering, the power plant that circulating system and feed system share.
Description of drawings
Fig. 1 is structural representation of the present utility model.
wherein: storage tank tank body 1, radar level gauge 2, female pipe 3 drenches with rain, son pipe 301 drenches with rain, motorized valve 4 is driven in fire-fighting soon, upper strata heating steam electromagnetic valve 5, middle level heating steam electromagnetic valve 6, lower floor's heating steam electromagnetic valve 7, bottom heating steam electromagnetic valve 8, ring wall heating coil 9, bottom-heated coil pipe 10, upper strata temperature sensor 11, middle level temperature sensor 12, lower floor's temperature sensor 13, near-bottom temperature sensor 14, circulation pump 15, select triple valve 16, circulation valve 17, circulating flushing steam electromagnetic valve 18, electromagnetic flow meter 19, after the blowing pump, valve 20, blowing pump 21, valve 22 before the blowing pump, blowing rushes steam electromagnetic valve 23, steam pressure transmitter 24, steam main turn-offs motorized valve 25 fast, fire-fighting atmospheric air port 26, porthole 27, access hole 28.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
With reference to accompanying drawing 1, specific embodiment of the utility model 1 is proposed, as shown in the figure, the liquid ammonium nitrate storage of a kind of full automatic control high-temperature high concentration and emptying equipment, this equipment comprises storage tank tank body 1, a plurality of control valve body and measuring cell, be provided with heating system in described storage tank tank body 1, more than described storage tank tank body 1 is divided into one deck, in each layer storage tank tank body 1, independently heating system be installed.
The tank body of storage tank described in the present embodiment 1 is divided into bottom, lower floor, middle level and upper strata, four independently heating system be arranged on respectively the interior described bottom of storage tank tank body 1, lower floor, middle level and upper strata.
The heating system that is arranged on the bottom of described storage tank tank body 1 is with the heating of plane curved tube form, and with reference to accompanying drawing 1, the bottom-heated coil pipe 10 that is arranged on storage tank tank body 1 bottom is heating take the plane curved tube form as storage tank tank body bottom liquid.Be arranged on the heating system on lower floor, middle level and upper strata of described storage tank tank body 1 all with the heating of ring wall coil form from top to down.The ring arm heating coil 9 that is separately positioned on storage tank tank body 1 lower floor, middle level and upper strata is take the ring wall coil form as the high heating liquid of storage tank tank body different layers.
Particularly, described heating system comprises four coil pipes, the admission port of described four coil pipes passes respectively tank skin and is connected with the female pipe of heating steam source of the gas by bottom heating steam electromagnetic valve 8, lower floor's heating steam electromagnetic valve 7, middle level heating steam electromagnetic valve 6, upper strata heating steam electromagnetic valve 5, and the steam outlet of four coil pipes passes respectively tank skin and is communicated with the Steam Recovery pipe.
Be provided with the female pipe 3 of drenching with rain of ring wall in the inner locus near top of described storage tank tank body 1, be communicated with several son pipes 301 that drenches with rain on female pipe 3 that drenches with rain, lay 15 ° ~ 45 ° perforates in a plurality of oblique angles mouth spray down on the described son pipe 301 that drenches with rain, female pipe 3 that drenches with rain is driven soon motorized valve 4 by fire-fighting and is communicated with the fire-fighting system water source tube;
Bottom at described storage tank tank body 1 offers tapping hole, tapping hole valve 20, electromagnetic flow meter 19 after the first hand valve, the front valve 22 of blowing pump, blowing pump 21, blowing pump enter produces liquid ammonium nitrate storage tank, and the rear connection blowing of valve 22 rushes steam electromagnetic valve 23 before the blowing pump, and blowing rushes steam electromagnetic valve 23 other ends and is communicated with the female pipe in heating steam vapour source;
Bottom at described storage tank tank body 1 offers circulation port, circulation port is through the second hand valve, circulation valve 17, selection triple valve 16, circulation pump 15, be communicated to again the inlet point at storage tank tank body 1 top, and at the rear connection circulating flushing of circulation valve 17 steam electromagnetic valve 18, circulating flushing steam electromagnetic valve 18 other ends are communicated with the female pipe in heating steam vapour source; When selecting triple valve 16 to be communicated with position as for material loading, select triple valve 16 to connect liquid ammonium nitrate tank car and namely can be used as the use of material loading loop.
Install for the steam main that cuts off whole equipment vapour source and turn-off fast motorized valve 25 on the female pipe of described heating steam source of the gas.
The top of described storage tank tank body is equipped with radar level gauge 2, on the sidewall of each layer storage tank tank body respectively correspondence near-bottom temperature sensor 14, lower floor's temperature sensor 13, middle level temperature sensor 12, upper strata temperature sensor 11 are installed.The top of described storage tank tank body 1 is provided with fire-fighting atmospheric air port 26, porthole 27 and access hole 28.
Each measuring cell of this equipment is connected and is connected with PLC with control valve body, adopts PLC to control; PLC is connected with the main frame communication, and the mode of operation of this equipment and processing parameter all show and control by computer display or touch-screen.
The groundwork principle of this device is:
1, Heat preservation loop radar level gauge collects liquid ammonium nitrate liquid level height parameter in storage tank and exports to PLC, and four layers of temperature sensor collect in tank and flow to PLC after temperature; When corresponding heating coil and temperature were crossed in the liquid level submergence lower than design temperature, the PLC output signal was opened corresponding heating steam electromagnetic valve; When liquid level did not have the corresponding heating coil of submergence, no matter temperature just, all must be closed corresponding heating steam electromagnetic valve.Liquid level, temperature, steam electromagnetic valve have formed the functions such as heat tracing, energy-conservation, safety interlocking control.
2, four layers of temperature sensor of fire-fighting automatic spray collect in tank and flow to PLC after temperature, and with setting the fire-fighting value, compare, and wherein a value is more than or equal to setting value if having in four layers of temperature, and PLC exports the fire protection warning model; If two or more temperature are arranged simultaneously more than or equal to setting value, in the time of the PLC output alarm signal, output signal is opened and is driven soon the electric firefighting valve, makes the whole device of fire water automatic spray inner, eliminates safe hidden trouble.
3, the automatic cycle loop is according to liquid ammonium nitrate characteristic and each production-line technique demand, by man-machine interface (touch-screen, computing machine) input cycle time or intermittent time.Mode of operation is: first by manual confirmation or sensor, detect and confirm to select triple valve to be in the circulation loop state, automatically open again the circulating flushing steam electromagnetic valve, allow after high-temperature steam warm-up cycle loop certain hour (time can revise on man-machine interface), close the circulating flushing steam electromagnetic valve, automatically open circulation valve, after allowing liquid ammonium nitrate automatically flow into circulation pump, automatic ON cycle pump; The pump opening time automatically closes circulation valve and automatically opens the circulating flushing steam electromagnetic valve simultaneously after arriving time of run, allows remaining liquid ammonium nitrate in the high-temperature steam flush loop, rinses after completing and automatically enters intermittently state; After arriving, intermittent time again enters recurrent state, so repeatedly automatic cycle and form the automatic cycle loop.
4, after material loading loop choice triple valve, circulation pump reach, pipeline and circulation loop share.Manual confirmation selects triple valve to be in the material loading state, and artificial start-stop pump is communicated with formation material loading loop with the liquid ammonium nitrate transportation tank car.First manually pass into high-temperature steam preheating material loading loop before material loading, again pass into high-temperature steam after material loading is completed and rinse the material loading loop.During material loading, when liquid level arrived high liquid level, the PLC system was automatically sent and is reported to the police but do not stop circulation pump; When liquid level arrive to be set high liquid level, the PLC system was automatically sent and is reported to the police and stop circulation pump, and material loading again, thereby guarantee that the high temperature ammonium nitrate solution does not overflow storage tank.
5, this loop, automatic discharging loop by the blowing pump before after valve 22, blowing pump 21, blowing pump valve 20, electromagnetic flow meter 19, steam electromagnetic valve 23 form.Input and want the blowing volume by man-machine interface, then click the blowing button after the manual confirmation manufacturing line needs blowing, namely enter the automatic discharging loop., first through steam electromagnetic valve 23 preheating blowing loops, through electromagnetic flow meter detection data and setting value, compare before blowing, automatically close this loop after volume arrives and pass into high-temperature steam and rinse the blowing loop.This blowing process is the full automatic control process.
6, steam main turn-offs fast motorized valve 25 package unit dangerous matter sources and comes from high temperature, and high temperature comes from high-temperature steam.On the female pipe of high-temperature steam, steam main is set and turn-offs fast motorized valve 25; when package unit occurs that any potential safety hazard or manual emergency are shut down; steam main on the automatic quick closedown steam main of system turn-offs motorized valve 25 fast; the excision high temperature heat source, give the comparatively safe state of package unit.
7, on the device side, touch-screen is set, is convenient to observe and monitor whole device.Storage tank in manufacturing line is other arranges touch-screen, is convenient to Production requirement and the whole device of monitoring.At Control Room, industrial computer is set, monitors and record whole operating performance of plant, technological parameter and equipment state.Thereby accomplish visual operation, visual monitor.And the emergency engine kill button is set throughout, and when emergency occurring, can suddenly stop package unit at any one, make it to be in comparatively safe state.
8, after the start safety interlock system powers on, but monitoring equipment state and each technological parameter need to operation must confirm after each equipment and each technological parameter to press " total operation " pushbutton enable control system, and control system just enters the fully automatic operation state.As the emergency engine kill situation appears, after needing artificial each fault of eliminating or potential safety hazard and after recovering the emergency engine kill button, side can enter and start total running state.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification sheets and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (8)
1. the liquid ammonium nitrate of full automatic control high-temperature high concentration is stored and emptying equipment, this equipment comprises storage tank tank body, a plurality of control valve body and measuring cell, it is characterized in that: be provided with heating system in described storage tank tank body, more than described storage tank tank body is divided into one deck, in each layer storage tank tank body, independently heating system is installed;
Be provided with the mother's pipe that drenches with rain of ring wall near the locus at top in described storage tank tank interior, be communicated with several son pipes that drenches with rain on female pipe that drenches with rain, upper 15 ° ~ 45 ° perforates in a plurality of oblique angles mouth spray down of laying of the described son pipe that drenches with rain, female pipe that drenches with rain is driven soon motorized valve by fire-fighting and is communicated with the fire-fighting system water source tube;
Bottom at described storage tank tank body offers tapping hole, tapping hole valve, electromagnetic flow meter after the first hand valve, the front valve of blowing pump, blowing pump, blowing pump enter produces liquid ammonium nitrate storage tank, and connect blowing after valve rush steam electromagnetic valve before the blowing pump, blowing rushes the steam electromagnetic valve other end and is communicated with the female pipe of heating steam source of the gas;
Bottom at described storage tank tank body offers circulation port, circulation port is through the second hand valve, circulation valve, selection triple valve, circulation pump, be communicated to again the inlet point at storage tank tank body top, and connecting the circulating flushing steam electromagnetic valve after circulation valve, circulating flushing steam electromagnetic valve other end is communicated with the female pipe of heating steam source of the gas; When selecting triple valve to be communicated with position as for material loading, select triple valve to connect liquid ammonium nitrate tank car and namely can be used as the use of material loading loop.
2. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 1 is stored and emptying equipment, it is characterized in that: described storage tank tank body is divided into bottom, lower floor, middle level and upper strata, four independently heating system be arranged on respectively described bottom in the storage tank tank body, lower floor, middle level and upper strata.
3. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 2 is stored and emptying equipment, it is characterized in that: the heating system that is arranged on the bottom of described storage tank tank body is with plane curved tube form heating, is arranged on the heating system on lower floor, middle level and upper strata of described storage tank tank body all with ring wall coil form heating from top to down.
4. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 3 is stored and emptying equipment, it is characterized in that: described heating system comprises four coil pipes, the admission port of described four coil pipes passes respectively tank skin and is connected with the female pipe of heating steam source of the gas by bottom, lower floor, middle level, upper strata steam electromagnetic valve, and the steam outlet of four coil pipes passes respectively tank skin and is communicated with the Steam Recovery pipe.
5. according to claim 1,2, the 3 or 4 liquid ammonium nitrate storage of described a kind of full automatic control high-temperature high concentration and emptying equipments, it is characterized in that: the steam main that is used for cutting off whole equipment vapour source is installed turn-offs fast motorized valve on the female pipe of described heating steam source of the gas.
6. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 5 is stored and emptying equipment, it is characterized in that: the top of described storage tank tank body is equipped with radar level gauge, on the sidewall of each layer storage tank tank body respectively correspondence near-bottom temperature sensor, lower floor's temperature sensor, middle level temperature sensor, upper strata temperature sensor are installed.
7. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 6 is stored and emptying equipment, and it is characterized in that: the top of described storage tank tank body is provided with the fire-fighting atmospheric air port, porthole and access hole.
8. the liquid ammonium nitrate of a kind of full automatic control high-temperature high concentration according to claim 7 is stored and emptying equipment, and it is characterized in that: each measuring cell of this equipment is connected and is connected with PLC with control valve body, adopts PLC to control; PLC is connected with the main frame communication, and the mode of operation of this equipment and processing parameter all show and control by computer display or touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202865844U CN203294598U (en) | 2013-05-23 | 2013-05-23 | Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202865844U CN203294598U (en) | 2013-05-23 | 2013-05-23 | Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203294598U true CN203294598U (en) | 2013-11-20 |
Family
ID=49570630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202865844U Expired - Fee Related CN203294598U (en) | 2013-05-23 | 2013-05-23 | Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203294598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109854A (en) * | 2015-08-06 | 2015-12-02 | 福建省民爆化工股份有限公司 | Anti-clogging device for liquid ammonium nitrate conveying pipeline |
| CN110902170A (en) * | 2019-10-22 | 2020-03-24 | 江苏海企化工仓储股份有限公司 | Benzene class storage leak protection device |
-
2013
- 2013-05-23 CN CN2013202865844U patent/CN203294598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109854A (en) * | 2015-08-06 | 2015-12-02 | 福建省民爆化工股份有限公司 | Anti-clogging device for liquid ammonium nitrate conveying pipeline |
| CN110902170A (en) * | 2019-10-22 | 2020-03-24 | 江苏海企化工仓储股份有限公司 | Benzene class storage leak protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106323855B (en) | Automation control oxygen/corrosion device and method in high-temperature lead bismuth melt | |
| CN111569323A (en) | Open many times and stop controllable lithium cell energy storage fire extinguishing systems | |
| CN203294598U (en) | Full-automatic control storage and material-discharging device for high-temperature and high-density liquid ammonium nitrate | |
| CN208951667U (en) | A kind of liquefied ammonia storage system | |
| CN204038256U (en) | The liquid composite oil phase of full automatic control emulsion stores and emptying equipment | |
| CN202687184U (en) | Liquid state ammonium nitrate storage tank | |
| CN101702084A (en) | High-temperature and high-pressure water circulation control system and control method thereof | |
| CN107621813A (en) | A kind of liquid caustic soda intelligently fills measurement control method | |
| CN104138737A (en) | Reaction kettle for teaching and practical training | |
| CN103539057B (en) | A kind of Distribution system for high-danger high-purity chemical liquid | |
| CN203572117U (en) | Freon fills notes machine | |
| CN107052003B (en) | Boiler water level gauge washing device and boiler water level gauge washing method | |
| CN205450707U (en) | Building monitored control system based on BIM fortune dimension device | |
| CN203355168U (en) | Intelligent tunnel water-series automatic fire extinguishing apparatus with GPS (global positioning system) | |
| CN105369554A (en) | Washing machine and control method thereof | |
| CN205670246U (en) | A kind of butadiene tank field safety-protection system that can remotely monitor | |
| CN205308126U (en) | Desulfurization process water addition device | |
| CN210637814U (en) | Electric heating equipment for heating crude oil | |
| CN208086495U (en) | A kind of full-automation emulsion liquid composite oil phase emptying equipment | |
| CN105652766A (en) | Building monitoring system based on BIM | |
| CN207529244U (en) | Urea for vehicle temperature control cycles tank | |
| CN206813731U (en) | A kind of aqueous ammonium nitrate solution stores anti-overtemperature safety protection control system | |
| CN217717650U (en) | Safety operation control system for closed container | |
| CN107357252A (en) | The control system and method for a kind of micro-reactor apparatus | |
| CN110093957A (en) | A kind of defroster for fire fighting water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |