CN109160106A - A kind of hydrochloric acid storage tank - Google Patents
A kind of hydrochloric acid storage tank Download PDFInfo
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- CN109160106A CN109160106A CN201811052966.4A CN201811052966A CN109160106A CN 109160106 A CN109160106 A CN 109160106A CN 201811052966 A CN201811052966 A CN 201811052966A CN 109160106 A CN109160106 A CN 109160106A
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- Prior art keywords
- liner
- hydrochloric acid
- storage
- tank
- annular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3837—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a bottle, jar or like container
- B65D81/3841—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a bottle, jar or like container formed with double walls, i.e. hollow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/06—Sealings formed by liquid or plastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/84—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for corrosive chemicals
Abstract
The invention belongs to hydrochloric acid technical field of memory, specifically a kind of hydrochloric acid storage tank, including tank body, cover, protective cover, storage liner, annular liner and stirring module；Tank body upper end is provided with tank mouth；The side of tank mouth is provided with water filling port；Cover is covered in tank mouth；Protective cover is covered on the outside of cover, and protective cover corrodes periphery for avoiding hydrogen chloride gas spilling in tank body；Storage liner is located at tank interior, stores and is filled with water between liner and tank body, stores liner with water-stop；Annular liner is set in the middle and lower part of storage liner, and liquid nitrogen is housed in annular liner, liquid nitrogen injection pipe is provided between annular liner and tank wall, and liquid nitrogen injection pipe can completely cut off the temperature difference of liquid nitrogen and water；The middle part of module arrangement storage liner is stirred, stirring module makes to store hydrochloric acid temperature equalization in liner for stirring hydrochloric acid；The present invention can be effectively suppressed volatilizees in hydrochloric acid storing process, and fully absorbs to the hydrogen chloride gas of volatilization, keeps hydrochloric acid storage safer.
Description
Technical field
The invention belongs to hydrochloric acid technical field of memory, specifically a kind of hydrochloric acid storage tank.
Background technique
Hydrochloric acid is the aqueous solution also known as hydrochloric acid of hydrogen chloride, belongs to unitary inorganic strong acid, and industrial use is extensive.Hydrochloric acid
Character is colorless and transparent liquid, there is strong sharp aroma, corrosivity with higher.Concentrated hydrochloric acid has extremely strong volatilization
Property, therefore the container for filling concentrated hydrochloric acid opens afterchlorinate hydrogen and can volatilize, and it is small that hydrochloric acid is generated in conjunction with the vapor in air
Drop makes acid mist occur above bottleneck.Storage is that requirement or goods and materials are stored at somewhere in advance.Existing hydrochloric acid
Hold-up tank, which exists, stores unsafe disadvantage, therefore needs to research and develop a kind of high security hydrochloric acid hold-up tank.
Patent document 1: a kind of high security hydrochloric acid hold-up tank, application number 2017200812338
In above patent document 1, by setting damping folded plate, sand, damping web plate, damping base, clear water, vibration damper plate,
Damping spring, damping trough, hold-up tank, damping frame, acid inlet tube, lid etc.；It is evenly arranged with damping web plate at the top of damping base, is subtracted
It is connected with damping folded plate at the top of shake web plate, sand is housed on the pedestal between damping web plate, sand is located under damping folded plate
Side, the top periphery of damping base are provided with damping trough, and damping trough is provided with clear water；The mode of patent damping reduces salt
Acid volatilization, and in hydrochloric acid storing process, it is unavoidably exactly that hydrochloric acid can be shaken, even if the hydrochloric acid jar of storage is static not
Dynamic, hydrochloric acid can still volatilize, therefore the safety of high security hydrochloric acid hold-up tank storage hydrochloric acid is limited.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of hydrochloric acid storage tank proposed by the present invention, it is an object of the invention to drop
Volatilization leakage in less salt acid storing process, improves the safety of hydrochloric acid storage.The present invention protects tank mouth by protective cover, reduces
The hydrogen chloride gas corrosion harmfulness of volatilization；By being equipped with the storage liner of hydrochloric acid with water-stop, the concentration of hydrochloric acid mistake of leakage is avoided
Greatly；By annular liner of the arrangement equipped with liquid nitrogen on the outside of storage liner, hydrochloric acid is given to cool down, reduces hydrochloric acid volatilization；Pass through stirring
Module stirs hydrochloric acid, makes to store hydrochloric acid temperature equalization in liner, and it is excessively high to avoid local hydrochloric acid temperature, reduces hydrochloric acid volatilization,
Improve hydrochloric acid storage security.
The technical solution adopted by the present invention to solve the technical problems is: a kind of hydrochloric acid storage tank of the present invention, packet
Include tank body, cover, protective cover, storage liner, annular liner and stirring module；The tank body upper end is provided with tank mouth；The tank
The side of mouth is provided with water filling port；The water filling port is used to inject water between tank body and storage liner；The cover is covered on
In tank mouth, tank mouth is used for the loading and taking-up of hydrochloric acid；The protective cover is covered on the outside of cover, and protective cover is used for anti-to tank mouth
Shield avoids hydrogen chloride gas in tank body from overflowing and corrode periphery；The storage liner is located at tank interior, stores the bottom of liner
It is fixed on tank base, stores and is filled with water between liner and tank body, stores liner with water-stop；The annular liner is set in
The middle and lower part of liner is stored, liquid nitrogen is housed in annular liner, liquid nitrogen injection pipe is provided between annular liner and tank wall, and
Liquid nitrogen injection pipe can completely cut off the temperature difference of liquid nitrogen and water, be cooled down with liquid nitrogen to the hydrochloric acid in storage liner；The stirring module arrangement
The middle part of liner is stored, stirring module makes to store hydrochloric acid temperature equalization in liner for stirring hydrochloric acid；Wherein,
The annular liner outer layer is additionally provided with vacuum heat-insulating layer, and vacuum heat-insulating layer wraps up annular liner surrounding, keeps away
The low temperature for exempting from the liquid nitrogen in annular liner is transmitted in water and accelerates liquid nitrogen gasification.When work, by liquid nitrogen injection pipe to annular
Liner supplements liquid nitrogen, is filled the water by water filling port into the cavity between tank body and storage liner, makes water full of in tank body and storage
90 the percent of cavity, avoids water logging from being less than pressure valve between gallbladder, and hydrochloric acid is poured into storage liner from tank mouth, is covered
Cover and protective cover, when the part liquid nitrogen in hydrochloric acid adstante febre in storage liner, annular liner can absorb heat in storage liner
Amount prevents hydrochloric acid heating in storage liner, is continuously in hydrochloric acid under low temperature, reduces the volatilization of hydrochloric acid, so that hydrochloric acid storage is more
Add safety.
The stirring module includes funnel cover, impeller one, support plate, impeller two, fixed frame, stirring wheel, Guan Yi, anti-water power
Magnet valve one and controller, the support plate are located at vacuum heat-insulating layer upper end, and support plate is used to funnel cover being fixed on vacuum heat-insulation
Layer upper end；The big end of the funnel cover is provided with bracket, the big end direction storage liner of funnel cover；The impeller one is located at bracket
On, impeller one is connect with holder pivots, and impeller one closes on storage liner, and arranged for interval has the pole N and the pole S on the blade of impeller one
Magnet；The magnet is coated with the layer of resistance to strong acid；The fixed frame is fixed on the inner wall of storage liner, fixed frame position
It is placed exactly between impeller one and fixed frame in the gallbladder wall of one side of impeller and storage liner；The impeller two is located at fixed frame
On, impeller two and fixed frame are rotatablely connected, and the magnet of the pole N identical with impeller one and the pole S is disposed on the blade of impeller two；Institute
It states stirring wheel to be located in the middle part of storage liner, stirring wheel is coaxial connected with impeller two；One end of the pipe one and annular liner are connected,
The other end and funnel cover small end of pipe one are connected；The anti-water solenoid valve one is arranged in the connection of pipe one and anti-water solenoid valve one
Place；The controller is arranged on tank wall, and controller is anti-for controlling anti-water solenoid valve a dozen open and close and controls
The frequency that water solenoid valve one automatically opens.When work, the part liquid nitrogen in annular liner can absorb heat and gas in storage liner
Nitrogen is turned to, anti-water solenoid valve one is controlled by controller, making anti-water solenoid valve one, moment opens once at regular intervals, makes
Liquid nitrogen overflows a part in annular liner, and the liquid nitrogen of spilling flows to funnel cover by pipe one, can absorb during liquid nitrogen flow
Heat in water, the coolant-temperature gage for making tank body and storing between liner reduce, and water temperature reduction is conducive to keep hydrochloric acid in storage liner
It maintains under low-temperature condition, reduces hydrochloric acid volatilization, while the liquid nitrogen for absorbing the heat of the water gasification that can heat up becomes nitrogen, nitrogen
It will push the rotation of impeller one when through funnel cover, because impeller one and all bands of impeller two are magnetic, so that one band of impeller of rotation
Movable vane wheel two rotates, and impeller two drives stirring wheel rotation, and stirring wheel and impeller two stir the hydrochloric acid in storage liner jointly, because depositing
Storage liner middle and lower part is arranged with annular liner, so that the middle and lower part temperature of storage liner is lower, stirring wheel and the rotation of impeller two promote
Into the hydrochloric acid flowing in storage liner, hydrochloric acid temperature equalization in storage liner may make, avoid local salt in storage liner
Acid is excessively high and volatilizees, and reduces the volatilization of hydrochloric acid in storage liner, may make hydrochloric acid storage safer.
It is provided with temporary cavity between the upper end and tank body of the storage liner, stores and is arranged between liner and temporary cavity
There is breather cheek valve one, stores and be additionally provided with circulating gas pipe between liner and temporary cavity；The breather cheek valve one is for making
The hydrogen chloride gas to volatilize in storage liner unidirectionally enters in temporary cavity；One end and storage liner lower end of the circulating gas pipe
Connection, the other end of circulating gas pipe pass to the middle and lower part of storage liner, and circulating gas pipe and the junction for storing liner are provided with list
To air outlet valve two；The unidirectional air outlet valve two is for entering hydrogen chloride gas in circulating gas pipe unidirectionally in storage liner；It is described
Heavy ball, spring and annular is provided in temporary cavity to calm the anger plate；Annular plate of calming the anger is located at heavy ball lower end, annular calm the anger plate with
Temporary cavity is slidably matched, and the upper and lower part of the annular salable temporary cavity of plate of calming the anger；There are two the spring settings, and one
Heavy ball upper end is fixed at tank body upper wall by a spring, and heavy ball and annular plate of calming the anger are connected by another spring.When work, because temporarily
It deposits and is provided with breather cheek valve one between cavity and storage liner, so that the hydrogen chloride gas of volatilization can pass through breather cheek valve one
The unidirectional annular for entering temporary cavity is calmed the anger in the following cavity of plate, when carrying hydrochloric acid storage tank or storage hydrochloric acid storage tank, weight
Club up and down shake, the heavy ball of shake will push annular calm the anger plate up and down motion, annular, which is calmed the anger when plate moves upwards, can make to keep in
Negative pressure is generated in cavity, so that the hydrogen chloride gas on storage liner top is inhaled into temporary cavity, is moved down in annular plate of calming the anger
When can squeeze hydrogen chloride gas in temporary cavity, enter the hydrogen chloride gas in temporary cavity in storage by circulating gas pipe
The middle and lower part of gallbladder advantageously reduces the volatilization of hydrochloric acid, may make salt so that the hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again
Acid storage is safer.
It is provided with venthole and pressure valve on the side wall of the temporary cavity upper end, is kept between cavity upper end and protective cover
It is provided with venthole, and venthole directly passes to vacancy inside protective cover；The pressure valve is located at venthole, and pressure valve exists
Opened when pressure is excessive in tank body the annular for rushing in the nitrogen saved bit by bit on the water surface disposably in temporary cavity calm the anger it is empty above plate
Between；The outlet speed of the venthole is less than the intake velocity of venthole；It is provided with sodium carbonate particle layer on the inside of the protective cover,
And the inner wall of protective cover and outer wall are ventilative.When work, when hydrochloric acid storage tank remains static always, because in annular liner
Liquid nitrogen it is intermittent spill over water and distil as nitrogen so that a large amount of nitrogen are saved bit by bit on the surface of water between tank body and storage liner,
When nitrogen pressure constantly increases the pressure value for reaching pressure valve, pressure valve is opened, and nitrogen enters temporary cavity from venthole rapidly
Annular calm the anger plate in upper plenum so that annular is calmed the anger, plate is increased with the pressure moment of upper plenum, the plate quilt so that annular is calmed the anger
It pushes rapidly, the hydrogen chloride gas below annular plate of calming the anger is depressed into circulating gas pipe, subsequent hydrogen chloride gas enters storage
The middle and lower part of liner advantageously reduces the volatilization of hydrochloric acid so that the hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again；Meanwhile
There is partial oxidation hydrogen to overflow from the cover of tank mouth, the hydrogen chloride gas of spilling passes through the sodium carbonate particle on the inside of protective cover
Neutralization reaction occurs for layer, hydrogen chloride gas and sodium bicarbonate particle, avoids and volatilizees with mordant hydrogen chloride gas, together
When, hydrogen chloride gas is reacted with sodium bicarbonate particle to radiate, so that cover and protective cover fever, and the nitrogen in temporary cavity
Be it is lasting slowly overflowed to vacancy inside protective cover by venthole, because nitrogen is just evaporated by liquefied ammonia so that
For nitrogen also in low-temperature condition, the nitrogen of low temperature can take away the heat on protective cover and cover when passing through protective cover, make to prevent
Protecting cover and cover are maintained in low temperature environment, are avoided hydrochloric acid and are volatilized spilling because temperature is excessively high, are conducive to hydrochloric acid secure storage.
Layer of silica gel is additionally provided on the outside of the protective cover, and layer of silica gel and the external world are ventilative；The layer of silica gel is used for drying
Sodium carbonate particle layer in protective cover.When work, it is provided with layer of silica gel on the outside of sodium carbonate particle layer, and sodium carbonate and hydrogen chloride
Gas reaction generates water, so that the water that layer of silica gel absorbing reaction generates, avoids what sodium carbonate was generated with hydrogen chloride gas precursor reactant
Water flows to the surrounding of hydrochloric acid storage tank, is conducive to the cleaning for keeping hydrochloric acid storage tank；Wherein, silica gel at normal temperature not with sodium carbonate
It is reacted with hydrochloric acid.
The tank body includes tank internal layer and tank outer layer, and the tank internal layer is corrosion resistant polythene material, polythene material
With good acid-proof corrosive effect, tank outer layer is the monel metal material combined closely or because of section's alloy material like this, is covered
Alloy material or because alloy material all has acid-proof corrosive effect like this for section like this；The storage liner includes outside gallbladder internal layer and gallbladder
Layer, the gallbladder internal layer are corrosion resistant polythene material, and gallbladder outer layer is the Hastelloy material combined closely.Hastelloy has
Stainless, acidproof, high temperature resistant and wear-resisting characteristic, and Hastelloy does not have magnetism.
Beneficial effects of the present invention are as follows:
1. the present invention protects tank mouth by protective cover, low-volatile hydrogen chloride gas corrosion harmfulness drops；By with water-stop
Storage liner equipped with hydrochloric acid avoids the concentration of hydrochloric acid of leakage excessive；Pass through ring of the arrangement equipped with liquid nitrogen on the outside of storage liner
Shape liner cools down to hydrochloric acid, reduces hydrochloric acid volatilization；Hydrochloric acid is stirred by stirring module, makes to store hydrochloric acid temperature equalization in liner,
It is excessively high to avoid local hydrochloric acid temperature, reduces hydrochloric acid volatilization, improves hydrochloric acid storage security.
2. by the present invention in that the hydrogen chloride gas of volatilization unidirectionally enters in temporary cavity automatically, in storage hydrochloric acid storage tank
When, heavy ball can up and down shake push annular calm the anger plate up and down motion, can make when moving upwards store liner top hydrogen chloride gas
Body is inhaled into temporary cavity, and the hydrogen chloride gas in temporary cavity is squeezed when moving down, and makes the hydrogen chloride gas in temporary cavity
Enter the middle and lower part of storage liner by circulating gas pipe, so that the hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again, is conducive to
The volatilization for reducing hydrochloric acid may make hydrochloric acid storage safer, improve the safety of hydrochloric acid storage.
3. the present invention saves bit by bit a large amount of nitrogen by the surface of water between tank body and storage liner, constantly increased in nitrogen pressure
When reaching the pressure value of pressure valve, pressure valve is opened, and nitrogen is calmed the anger from venthole into the annular for keeping in cavity rapidly more than plate
In cavity, so that annular is calmed the anger, plate is increased with the pressure moment of upper plenum, so that annular is calmed the anger, plate is pushed rapidly, and annular is pressed
Hydrogen chloride gas below gas plate is depressed into circulating gas pipe, and subsequent hydrogen chloride gas enters the middle and lower part of storage liner, so that
The hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again, advantageously reduces the volatilization of hydrochloric acid, improves hydrochloric acid storage security.
4. venthole is arranged by setting protective cover and on the inside of temporary cavity and protective cover in the present invention, so that part chlorine
Change hydrogen to overflow from the cover of tank mouth, the hydrogen chloride gas of spilling is occurred by the sodium carbonate particle layer on the inside of protective cover
Neutralization reaction is avoided and is volatilized with mordant hydrogen chloride gas；Meanwhile the nitrogen in low-temperature condition is overflowed from venthole
Vacancy is overflowed inside to protective cover, and the nitrogen of low temperature can eliminate the heat of neutralization reaction generation again, protects protective cover and cover
It holds in low temperature environment, avoids hydrochloric acid and volatilize spilling because temperature is excessively high, be conducive to hydrochloric acid secure storage.
Detailed description of the invention
Fig. 1 is hydrochloric acid storage tank structural schematic diagram of the invention；
In figure: tank body 1, tank mouth 11, water filling port 12, cover 13, protective cover 14, sodium carbonate particle layer 141, layer of silica gel 142,
Store liner 2, annular liner 3, liquid nitrogen injection pipe 31, vacuum heat-insulating layer 32, stirring module 4, funnel cover 41, impeller 1, branch
Fagging 43, impeller 2 44, fixed frame 45, stirring wheel 46, pipe 1, anti-water solenoid valve 1, controller 49, temporary cavity 5, list
To intake valve 1, circulating gas pipe 52, unidirectional air outlet valve 2 53, heavy ball 54, annular calm the anger plate 55, venthole 56, pressure valve 57,
Venthole 58.
Specific embodiment
A kind of hydrochloric acid storage tank of the invention is carried out using Fig. 1 as described below.
Such as Fig. 1, a kind of hydrochloric acid storage tank of the present invention, including tank body 1, cover 13, protective cover 14, storage liner 2,
Annular liner 3 and stirring module 4；1 upper end of tank body is provided with tank mouth 11；The side of the tank mouth 11 is provided with water filling port
12；The water filling port 12 is used to inject water between tank body 1 and storage liner 2；The cover 13 is covered in tank mouth 11, tank mouth
11 are used for the loading and taking-up of hydrochloric acid；The protective cover 14 is covered on 13 outside of cover, and protective cover 14 is used to protect tank mouth 11,
Hydrogen chloride gas in tank body 1 is avoided to overflow and corrode periphery；The storage liner 2 is located inside tank body 1, stores the bottom of liner 2
1 bottom of tank body is fixed in portion, is stored and is filled with water between liner 2 and tank body 1, stores liner 2 with water-stop；The annular liner
3 are set in the middle and lower part of storage liner 2, and liquid nitrogen is housed in annular liner 3, is provided with liquid between 1 outer wall of annular liner 3 and tank body
Nitrogen injection pipe 31, and liquid nitrogen injection pipe 31 can completely cut off the temperature difference of liquid nitrogen and water, be cooled down with liquid nitrogen to the hydrochloric acid in storage liner 2；
The middle part for stirring the arrangement storage liner 2 of module 4, stirring module 4 keep hydrochloric acid temperature in storage liner 2 equal for stirring hydrochloric acid
Weighing apparatus；Wherein,
As shown in Figure 1, annular 3 outer layer of liner is additionally provided with vacuum heat-insulating layer 32, and vacuum heat-insulating layer 32 will be annular
3 surrounding of liner package, avoids the low temperature of the liquid nitrogen in annular liner 3 from being transmitted in water and accelerate liquid nitrogen gasification.When work, pass through
31 pairs of liquid nitrogen injection pipe annular liners 3 supplement liquid nitrogen, are infused by water filling port 12 into the cavity between tank body 1 and storage liner 2
Water makes water be full of 90 percent of cavity between tank body 1 and storage liner 2, avoids water logging from being less than pressure valve 57, by salt
Acid pours into storage liner 2 from tank mouth 11, covers cover 13 and protective cover 14, when hydrochloric acid adstante febre, annular in storage liner 2
Part liquid nitrogen in liner 3 can absorb heat in storage liner 2, prevent hydrochloric acid heating in storage liner 2, be continuously in hydrochloric acid
Under low temperature, the volatilization of hydrochloric acid is reduced, so that hydrochloric acid storage is safer.
As shown in Figure 1, the stirring module 4 includes funnel cover 41, impeller 1, support plate 43, impeller 2 44, fixed frame
45, stirring wheel 46, pipe 1, anti-water solenoid valve 1 and controller 49, the support plate 43 are located at 32 upper end of vacuum heat-insulating layer,
Support plate 43 is used to funnel cover 41 being fixed on 32 upper end of vacuum heat-insulating layer；The big end of the funnel cover 41 is provided with bracket, leakage
The big end direction storage liner 2 of bucket cover 41；The impeller 1 is located on bracket, and impeller 1 is connect with holder pivots, and leaf
It takes turns 1 and closes on storage liner 2, arranged for interval has the magnet of the pole N and the pole S on the blade of impeller 1；It wraps on the surface of the magnet
It is wrapped with the layer of resistance to strong acid；The fixed frame 45 is fixed on the inner wall of storage liner 2, and fixed frame 45 is located at one 42 side of impeller and deposits
The gallbladder wall of storage liner 2 is placed exactly between impeller 1 and fixed frame 45；The impeller 2 44 is located on fixed frame 45, impeller two
44 are rotatablely connected with fixed frame 45, and the magnet of the pole N identical with impeller 1 and the pole S is disposed on the blade of impeller 2 44；Institute
It states stirring wheel 46 and is located at 2 middle part of storage liner, stirring wheel 46 is coaxial connected with impeller 2 44；One end of the pipe 1 and annular
Liner 3 is connected, and the other end and 41 small end of funnel cover of pipe 1 are connected；The anti-water solenoid valve 1 is arranged in pipe 1 and prevents
The junction of water solenoid valve 1；The controller 49 is arranged on 1 outer wall of tank body, and controller 49 is for controlling anti-water solenoid valve
One 48 open and close and control the frequency that anti-water solenoid valve 1 automatically opens.Part liquid when work, in annular liner 3
Nitrogen can absorb heat in storage liner 2 and gasify as nitrogen, control anti-water solenoid valve 1 by controller 49, make waterproof electromagnetism
Valve 1 at regular intervals open once by moment, so that liquid nitrogen in annular liner 3 is overflowed a part, the liquid nitrogen of spilling passes through pipe one
47 flow to funnel cover 41, and the heat in water can be absorbed during liquid nitrogen flow, make tank body 1 and store the water temperature between liner 2
Degree reduces, and water temperature reduction is conducive to keep hydrochloric acid in storage liner 2 to maintain under low-temperature condition, reduces hydrochloric acid volatilization, inhales simultaneously
The liquid nitrogen gasification that can heat up for having received the heat of water becomes nitrogen, and nitrogen will push the rotation of impeller 1 when through funnel cover 41,
Because impeller 1 and all bands of impeller 2 44 are magnetic, so that one 42 impeller 2 44 of the impeller rotation of rotation, 2 44 band of impeller
Dynamic stirring wheel 46 rotates, and agitation stores the hydrochloric acid in liner 2 jointly for stirring wheel 46 and impeller 2 44, because storing 2 middle and lower part of liner
It is arranged with annular liner 3, so that the middle and lower part temperature of storage liner 2 is lower, stirring wheel 46 and the rotation of impeller 2 44 are promoted and deposited
The hydrochloric acid flowing in liner 2 is stored up, may make hydrochloric acid temperature equalization in storage liner 2, avoids local hydrochloric acid mistake in storage liner 2
It is high and volatilize, the volatilization of hydrochloric acid in storage liner 2 is reduced, it is safer to may make that hydrochloric acid stores.
As shown in Figure 1, be provided with temporary cavity 5 between the upper end and tank body 1 of the storage liner 2, storage liner 2 and temporarily
It deposits and is provided with breather cheek valve 1 between cavity 5, store and be additionally provided with circulating gas pipe 52 between liner 2 and temporary cavity 5；Institute
Breather cheek valve 1 is stated for entering the hydrogen chloride gas to volatilize in storage liner 2 unidirectionally in temporary cavity 5；The circulation
One end of tracheae 52 is connected to storage 2 lower end of liner, and the other end of circulating gas pipe 52 passes to the middle and lower part of storage liner 2, circulation
The junction of tracheae 52 and storage liner 2 is provided with unidirectional air outlet valve 2 53；The unidirectional air outlet valve 2 53 is for making circulating air
Hydrogen chloride gas unidirectionally enters in storage liner 2 in pipe 52；Heavy ball 54, spring and annular pressure are provided in the temporary cavity 5
Gas plate 55；Annular plate 55 of calming the anger is located at 54 lower end of heavy ball, and annular plate 55 of calming the anger is slidably matched with temporary cavity 5, and annular
The upper and lower part of the salable temporary cavity 5 of plate 55 of calming the anger；There are two the spring settings, and a spring consolidates 54 upper end of heavy ball
At 1 upper wall of tank body, heavy ball 54 and annular plate 55 of calming the anger are connected by another spring.When work, because of temporary cavity 5 and storage
Breather cheek valve 1 is provided between liner 2 so that volatilization hydrogen chloride gas can by breather cheek valve 1 unidirectionally into
The annular for entering temporary cavity 5 is calmed the anger in 55 or less cavity of plate, when carrying hydrochloric acid storage tank or storage hydrochloric acid storage tank, heavy ball 54
Can up and down shake, the heavy ball 54 of shake will push annular calm the anger plate 55 up and down motion, annular, which is calmed the anger when plate 55 moves upwards, to be made
Negative pressure is generated in temporary cavity 5, so that the hydrogen chloride gas on storage 2 top of liner is inhaled into temporary cavity 5, is calmed the anger in annular
Plate 55 can squeeze the hydrogen chloride gas in temporary cavity 5 when moving down, the hydrogen chloride gas in temporary cavity 5 is made to pass through circulating gas pipe
52 enter the middle and lower part of storage liner 2, so that the hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again, advantageously reduce hydrochloric acid
Volatilization may make hydrochloric acid storage safer.
As shown in Figure 1, being provided with venthole 56 and pressure valve 57 on the side wall of 5 upper end of temporary cavity, cavity 5 is kept in
Venthole 58 is provided between upper end and protective cover 14, and venthole 58 directly passes to 14 inside vacancy of protective cover；The pressure
Power valve 57 is located at venthole 56, and it is disposable that the nitrogen for making to save bit by bit on the water surface is opened when the pressure in tank body 1 of pressure valve 57 is excessive
The annular rushed in temporary cavity 5 is calmed the anger 55 upper space of plate；The outlet speed of the venthole 58 be less than venthole 56 into
Gas velocity degree；Sodium carbonate particle layer 141 is provided on the inside of the protective cover 14, and the inner wall of protective cover 14 and outer wall are ventilative.Work
When making, when hydrochloric acid storage tank remains static always, distil due to the liquid nitrogen in annular liner 3 is intermittent spills over water as nitrogen
Gas constantly increases in nitrogen pressure so that a large amount of nitrogen are saved bit by bit on the surface of water between tank body 1 and storage liner 2 and reaches pressure valve
When 57 pressure value, pressure valve 57 is opened, and nitrogen calms the anger plate 55 from the annular that venthole 56 enters temporary cavity 5 rapidly with overhead
Intracavitary, so that annular is calmed the anger, plate 55 is increased with the pressure moment of upper plenum, so that annular is calmed the anger, plate 55 is pushed rapidly, will be annular
The hydrogen chloride gas of the lower section of plate 55 of calming the anger is depressed into circulating gas pipe 52, under subsequent hydrogen chloride gas enters in storage liner 2
Portion advantageously reduces the volatilization of hydrochloric acid so that the hydrogen chloride gas of volatilization is dissolved into hydrochloric acid again；Meanwhile there is partial oxidation
Hydrogen overflows from the cover 13 of tank mouth 11, the sodium carbonate particle layer that the hydrogen chloride gas of spilling passes through 14 inside of protective cover
141, neutralization reaction occurs for hydrogen chloride gas and sodium bicarbonate particle, avoids and volatilizees with mordant hydrogen chloride gas, together
When, hydrogen chloride gas is reacted with sodium bicarbonate particle to radiate, so that cover 13 and protective cover 14 generate heat, and in temporary cavity 5
Nitrogen be it is lasting by venthole 58 slowly to 14 inside vacancy of protective cover overflow, because nitrogen is just to have been volatilized by liquefied ammonia
Come, so that nitrogen, also in low-temperature condition, the nitrogen of low temperature can take away protective cover 14 and cover when passing through protective cover 14
Heat on 13 is maintained at protective cover 14 and cover 13 in low temperature environment, avoids hydrochloric acid and volatilizees spilling because temperature is excessively high,
Be conducive to hydrochloric acid secure storage.
As shown in Figure 1, the outside of the protective cover 14 is additionally provided with layer of silica gel 142, and layer of silica gel 142 and the external world are ventilative；
The layer of silica gel 142 is used to dry the sodium carbonate particle layer 141 in protective cover 14.When work, the outside of sodium carbonate particle layer 141
It is provided with layer of silica gel 142, and sodium carbonate and hydrogen chloride gas precursor reactant generate water, so that the water that 142 absorbing reaction of layer of silica gel generates,
The surrounding that the water that sodium carbonate and hydrogen chloride gas precursor reactant generate flows to hydrochloric acid storage tank is avoided, is conducive to keep hydrochloric acid storage tank
Cleaning；Wherein, silica gel does not react at normal temperature with sodium carbonate and hydrochloric acid.
As shown in Figure 1, the tank body 1 includes tank internal layer and tank outer layer, the tank internal layer is corrosion resistant polythene material,
Polythene material has good acid-proof corrosive effect, and tank outer layer is the monel metal material combined closely or because section closes like this
Golden material, monel metal material or because alloy material all has acid-proof corrosive effect like this for section；The storage liner 2 includes gallbladder
Internal layer and gallbladder outer layer, the gallbladder internal layer are corrosion resistant polythene material, and gallbladder outer layer is the Hastelloy material combined closely.It breathes out
Family name's alloy has stainless, acidproof, high temperature resistant and wear-resisting characteristic, and Hastelloy does not have magnetism.
Specific workflow is as follows:
When work, liquid nitrogen is supplemented by 31 pairs of liquid nitrogen injection pipe annular liners 3, to tank body 1 and is stored by water filling port 12
Water filling in cavity between liner 2 makes water be full of 90 percent of cavity between tank body 1 and storage liner 2, avoids water
Pressure valve 57 is flooded, hydrochloric acid is poured into storage liner 2 from tank mouth 11, cover 13 and protective cover 14 are covered, when in storage
Hydrochloric acid adstante febre in gallbladder 2, the part liquid nitrogen in annular liner 3 can absorb heat in storage liner 2, prevent salt in storage liner 2
Acid heating, is continuously in hydrochloric acid under low temperature, reduces the volatilization of hydrochloric acid, so that hydrochloric acid storage is safer；Wherein, annular liner
Part liquid nitrogen in 3 can absorb heat in storage liner 2 and gasify as nitrogen, control anti-water solenoid valve one by controller 49
48, making anti-water solenoid valve 1, moment opens once at regular intervals, so that liquid nitrogen in annular liner 3 is overflowed a part, overflows
Liquid nitrogen funnel cover 41 is flowed to by pipe 1, the heat in water can be absorbed during liquid nitrogen flow, is made in tank body 1 and storage
Coolant-temperature gage between gallbladder 2 reduces, and water temperature reduction is conducive to keep hydrochloric acid in storage liner 2 to maintain under low-temperature condition, reduces salt
Acid volatilization, while the liquid nitrogen for absorbing the heat of the water gasification that can heat up becomes nitrogen, nitrogen will push when through funnel cover 41
Impeller 1 rotates, because impeller 1 and all bands of impeller 2 44 are magnetic, so that 2 44 turns of one 42 impeller of impeller of rotation
Dynamic, impeller 2 44 drives stirring wheel 46 to rotate, and stirring wheel 46 and impeller 2 44 stir the hydrochloric acid in storage liner 2 jointly, because depositing
Storage 2 middle and lower part of liner is arranged with annular liner 3, so that the middle and lower part temperature of storage liner 2 is lower, stirring wheel 46 and impeller 2 44
Rotation promotes the hydrochloric acid flowing in storage liner 2, may make hydrochloric acid temperature equalization in storage liner 2, avoids storage liner 2
Middle part hydrochloric acid is excessively high and volatilizees, and reduces the volatilization of hydrochloric acid in storage liner 2, may make hydrochloric acid storage safer；
It is provided with breather cheek valve 1 between cavity 5 and storage liner 2 because keeping in, so that the hydrogen chloride gas of volatilization can
The annular for unidirectionally entering temporary cavity 5 by breather cheek valve 1 is calmed the anger in 55 or less cavity of plate, and hydrochloric acid storage tank is being carried
Or storage hydrochloric acid storage tank when, heavy ball 54 can up and down shake, the heavy ball 54 of shake will push annular calm the anger plate 55 up and down motion, ring
Shape, which is calmed the anger, can make to generate negative pressure in temporary cavity 5 when plate 55 moves upwards, so that the hydrogen chloride gas on storage 2 top of liner is inhaled
Enter in temporary cavity 5, in the annular hydrogen chloride gas that can be squeezed when plate 55 moves down in temporary cavity 5 of calming the anger, makes in temporary cavity 5
Hydrogen chloride gas by circulating gas pipe 52 enter storage liner 2 middle and lower part so that volatilization hydrogen chloride gas incorporate again
Into hydrochloric acid, the volatilization of hydrochloric acid is advantageously reduced, may make hydrochloric acid storage safer；It is in static always in hydrochloric acid storage tank
It when state, distils due to the liquid nitrogen in annular liner 3 is intermittent spills over water as nitrogen, so that water between tank body 1 and storage liner 2
Surface save bit by bit a large amount of nitrogen, when nitrogen pressure constantly increases the pressure value for reaching pressure valve 57, pressure valve 57 open, nitrogen
Plate 55 is calmed the anger so that in upper plenum, plate 55 is so that annular is calmed the anger with upper plenum from the annular that venthole 56 enters temporary cavity 5 rapidly
Pressure moment increase so that annular is calmed the anger, plate 55 is pushed rapidly, and the calm the anger hydrogen chloride gas of the lower section of plate 55 of annular is pushed
Into circulating gas pipe 52, subsequent hydrogen chloride gas enters the middle and lower part of storage liner 2, so that the hydrogen chloride gas of volatilization melts again
Enter into hydrochloric acid, advantageously reduces the volatilization of hydrochloric acid；Meanwhile thering is partial oxidation hydrogen to overflow from the cover 13 of tank mouth 11,
The hydrogen chloride gas of spilling by the sodium carbonate particle layer 141 of 14 inside of protective cover, send out by hydrogen chloride gas and sodium bicarbonate particle
Raw neutralization reaction, avoids and volatilizees with mordant hydrogen chloride gas, meanwhile, hydrogen chloride gas is reacted with sodium bicarbonate particle
Can radiate so that cover 13 and protective cover 14 generate heat, and the nitrogen in temporary cavity 5 be it is lasting by venthole 58 slowly to
14 inside vacancy of protective cover is overflowed, because nitrogen is just evaporated by liquefied ammonia, so that nitrogen is also in low-temperature condition, low temperature
Nitrogen when passing through protective cover 14, and the heat on protective cover 14 and cover 13 can be taken away, protect protective cover 14 and cover 13
It holds in low temperature environment, avoids hydrochloric acid and volatilize spilling because temperature is excessively high, be conducive to hydrochloric acid secure storage；And sodium carbonate particle
The outside of layer 141 is provided with layer of silica gel 142, and sodium carbonate and hydrogen chloride gas precursor reactant generate water, so that layer of silica gel 142 absorbs instead
The water that should be generated avoids the surrounding that the water that sodium carbonate and hydrogen chloride gas precursor reactant generate flows to hydrochloric acid storage tank, is conducive to protect
Hold the cleaning of hydrochloric acid storage tank；Wherein, silica gel does not react at normal temperature with sodium carbonate and hydrochloric acid.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
Various changes are able to carry out in the range of disengaging present subject matter.
Industrial applicibility
According to the present invention, tank mouth is protected by protective cover, drops low-volatile hydrogen chloride gas corrosion harmfulness；By with watertight
It is packaged with the storage liner of hydrochloric acid, avoids the concentration of hydrochloric acid of leakage excessive；By arranging on the outside of storage liner equipped with liquid nitrogen
Annular liner cools down to hydrochloric acid, reduces hydrochloric acid volatilization；Hydrochloric acid is stirred by stirring module, it is equal to make to store hydrochloric acid temperature in liner
Weighing apparatus, it is excessively high to avoid local hydrochloric acid temperature, reduces hydrochloric acid volatilization, improves hydrochloric acid storage security；Therefore hydrochloric acid storage
Tank is useful in hydrochloric acid technical field of memory.
Claims (6)
1. a kind of hydrochloric acid storage tank, including tank body (1), cover (13), protective cover (14), storage liner (2), annular liner (3)
With stirring module (4)；Tank body (1) upper end is provided with tank mouth (11)；The side of the tank mouth (11) is provided with water filling port
(12)；The cover (13) is covered on tank mouth (11), it is characterised in that: the protective cover (14) is covered on cover (13) outside
Side, protective cover (14) are used to protect tank mouth (11), and the interior hydrogen chloride gas of tank body (1) is avoided to overflow and corrode periphery；It is described to deposit
Storage liner (2) is located at tank body (1) inside, and tank body (1) bottom is fixed in the bottom of storage liner (2), stores liner (2) and tank body
(1) water is filled between；The annular liner (3) is set in the middle and lower part of storage liner (2), and liquid is housed in annular liner (3)
Nitrogen is provided with liquid nitrogen injection pipe (31) between annular liner (3) and tank body (1) outer wall；In stirring module (4) the arrangement storage
The middle part of gallbladder (2), stirring module (4) make to store liner (2) interior hydrochloric acid temperature equalization for stirring hydrochloric acid；Wherein,
Described annular liner (3) outer layer is additionally provided with vacuum heat-insulating layer (32), and vacuum heat-insulating layer (32) is by annular liner (3) four
Week wraps up.
2. a kind of hydrochloric acid storage tank according to claim 1, it is characterised in that: the stirring module (4) includes funnel cover
(41), impeller one (42), support plate (43), impeller two (44), fixed frame (45), stirring wheel (46), pipe one (47), waterproof electromagnetism
Valve one (48) and controller (49), the support plate (43) are located at vacuum heat-insulating layer (32) upper end, and support plate (43) will be for that will leak
Bucket cover (41) is fixed on vacuum heat-insulating layer (32) upper end；The big end of the funnel cover (41) is provided with bracket, funnel cover (41)
Big end direction storage liner (2)；The impeller one (42) is located on bracket, and impeller one (42) is connect with holder pivots, and impeller
Storage liner (2) is closed in one (42), and arranged for interval has the magnet of the pole N and the pole S on the blade of impeller one (42)；The table of the magnet
Bread is wrapped with the layer of resistance to strong acid；The fixed frame (45) is fixed on the inner wall of storage liner (2), and fixed frame (45) is located at impeller one
(42) side and store liner (2) gallbladder wall be placed exactly between impeller one (42) and fixed frame (45)；The impeller two (44)
On fixed frame (45), impeller two (44) and fixed frame (45) are rotatablely connected, and are disposed on the blade of impeller two (44) and leaf
Take turns the magnet of one (42) identical pole N and the pole S；The stirring wheel (46) is located in the middle part of storage liner (2), stirring wheel (46) and leaf
Two (44) are taken turns coaxially to be connected；One end of the pipe one (47) and annular liner (3) are connected, the other end and funnel cover of pipe one (47)
(41) small end is connected；The anti-water solenoid valve one (48) is arranged in the junction of pipe one (47) and anti-water solenoid valve one (48)；Institute
It states controller (49) to be arranged on tank body (1) outer wall, controller (49) is opened and closed for controlling anti-water solenoid valve one (48)
And the frequency that the anti-water solenoid valve one (48) of control automatically opens.
3. a kind of hydrochloric acid storage tank according to claim 2, it is characterised in that: the upper end of storage liner (2) and tank
It is provided between body (1) temporary cavity (5), stores and be provided with breather cheek valve one between liner (2) and temporary cavity (5)
(51), it stores between liner (2) and temporary cavity (5) and is additionally provided with circulating gas pipe (52)；The breather cheek valve one (51) is used
It is kept in cavity (5) in entering the hydrogen chloride gas for storing volatilization in liner (2) unidirectionally；One end of the circulating gas pipe (52)
It is connected to storage liner (2) lower end, the other end of circulating gas pipe (52) passes to the middle and lower part of storage liner (2), circulating gas pipe
(52) junction with storage liner (2) is provided with unidirectional air outlet valve two (53)；The unidirectional air outlet valve two (53) is for making to follow
Ring tracheae (52) interior hydrogen chloride gas unidirectionally enters in storage liner (2)；Be provided in the temporary cavity (5) heavy ball (54),
Spring and annular calm the anger plate (55)；Annular plate (55) of calming the anger is located at heavy ball (54) lower end, and annular is calmed the anger plate (55) and temporary
Cavity (5) is slidably matched, and annular is calmed the anger the upper and lower part of the salable temporary cavity (5) of plate (55)；The spring is provided with
Two, heavy ball (54) upper end is fixed at tank body (1) upper wall by a spring, another spring calms the anger heavy ball (54) and annular
Plate (55) is connected.
4. a kind of hydrochloric acid storage tank according to claim 3, it is characterised in that: the side wall of temporary cavity (5) upper end
On be provided with venthole (56) and pressure valve (57), be provided with venthole between temporary cavity (5) upper end and protective cover (14)
(58), and venthole (58) directly passes to the internal vacancy of protective cover (14)；The pressure valve (57) is located at venthole (56),
Pressure valve (57) is opened when tank body (1) interior pressure is excessive rushes in the nitrogen saved bit by bit on the water surface disposably in temporary cavity (5)
Annular calm the anger plate (55) upper space；The outlet speed of the venthole (58) is less than the intake velocity of venthole (56)；Institute
It states and is provided with sodium carbonate particle layer (141) on the inside of protective cover (14), and the inner wall of protective cover (14) and outer wall are ventilative.
5. a kind of hydrochloric acid storage tank according to claim 4, it is characterised in that: also set up on the outside of the protective cover (14)
Have layer of silica gel (142), and layer of silica gel (142) and the external world are ventilative；The layer of silica gel (142) is used to dry the carbon in protective cover (14)
Sour sodium stratum granulosum (141).
6. a kind of hydrochloric acid storage tank according to claim 1, it is characterised in that: the tank body (1) includes tank internal layer and tank
Outer layer, the tank internal layer are corrosion resistant polythene material, and tank outer layer is the monel metal material combined closely or because section is
That alloy material；The storage liner (2) includes gallbladder internal layer and gallbladder outer layer, and the gallbladder internal layer is corrosion resistant polythene material,
Gallbladder outer layer is the Hastelloy material combined closely.
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| CN201811052966.4A CN109160106B (en) | 2018-09-10 | 2018-09-10 | A kind of hydrochloric acid storage tank |
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| CN201811052966.4A CN109160106B (en) | 2018-09-10 | 2018-09-10 | A kind of hydrochloric acid storage tank |
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| CN109160106B CN109160106B (en) | 2019-09-27 |
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| CN109761195A (en) * | 2019-01-23 | 2019-05-17 | 杨宇 | It is a kind of efficiently to prepare hydrogen chloride gas equipment |
| CN110884782A (en) * | 2019-11-29 | 2020-03-17 | 湖州鑫巨新材科技有限公司 | Compound glue filling equipment for processing cloth with uniform heating |
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| CN101898660A (en) * | 2010-08-06 | 2010-12-01 | 许树成 | But a kind of liquid container of cooling and warming |
| US20120118429A1 (en) * | 2010-11-17 | 2012-05-17 | Hsin-Chiao Fu | Slow releasing device for gaseous chlorine dioxide and method for making same |
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| CN109160106B (en) | 2019-09-27 |
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