CN111781054A - Acid removing device and acid removing system - Google Patents
Acid removing device and acid removing system Download PDFInfo
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- CN111781054A CN111781054A CN202010568037.XA CN202010568037A CN111781054A CN 111781054 A CN111781054 A CN 111781054A CN 202010568037 A CN202010568037 A CN 202010568037A CN 111781054 A CN111781054 A CN 111781054A
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- 239000002253 acid Substances 0.000 title claims abstract description 234
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 239000011521 glass Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 28
- 239000000523 sample Substances 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000002133 sample digestion Methods 0.000 abstract description 18
- 239000007789 gas Substances 0.000 description 116
- 239000012488 sample solution Substances 0.000 description 19
- 238000009835 boiling Methods 0.000 description 15
- 239000003513 alkali Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000029087 digestion Effects 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0029—Use of radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Toxicology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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Abstract
The invention belongs to the technical field of analytical chemistry, and particularly relates to an acid removing device and an acid removing system. The acid dispelling device comprises a box body, a transparent glass window and a water tank, wherein the box body is provided with an acid gas outlet; and the infrared heating device is arranged outside the box body and positioned on the upper part of the transparent glass window, so that infrared light rays emitted by the infrared heating device penetrate through the transparent glass window to enter the box body so as to heat acid-containing solution in the box body. The acid removing device provided by the invention can greatly reduce the loss of target components of the sample, does not need to carry out one-by-one closed operation on each container with the sample digestion solution, saves time and labor, is simple and convenient to operate, and can realize batch operation.
Description
Technical Field
The invention belongs to the technical field of analytical chemistry, and particularly relates to an acid removing device and an acid removing system.
Background
Acid-dispelling is a common sample pretreatment technology, and mainly comprises the steps of evaporating an acid-containing sample digestion solution which is digested into a solution state to remove acid components, and reserving target components of the sample. The electric heating acid removing device adopts an electric heating mode to remove acid, and is common equipment in a chemical laboratory; the electric heating acid dispelling is mainly characterized in that an electric heater is adopted to heat an open container, a sample digestion solution in the open container is heated to boiling, and produced acid gas volatilizes from the opening of the container to dispel acid.
In recent years, a vacuum acid-removing mode is gradually developed, and the vacuum acid-removing mode is convenient for acid gas recovery, is relatively environment-friendly and is adopted by some users. The vacuum acid-removing device consists of four parts, namely a heater, a vacuum gas circuit, an acid gas recovery bottle group (filled with alkali liquor), a vacuum pump and the like. In the existing vacuum acid removing system, a main vacuum pipeline is generally divided into a plurality of branch vacuum pipelines through a simple conversion module, and the tail end of each branch vacuum pipeline is connected to a sealing plug with a central hole and hermetically connected with an acid removing pipe for containing sample digestion liquid. When acid is removed, the sample digestion liquid in the acid removing pipe is heated by the heater to evaporate acid gas, and the acid gas enters the acid gas recovery bottle group under the action of the vacuum pump and is neutralized by alkali liquid.
However, the prior art has some disadvantages in both the electric heating acid-expelling and the vacuum acid-expelling. The electric heating acid-dispelling is to put a container to be heated into a heater (such as a heating sleeve), then when the sample digestion solution in the container is heated to boiling, the conditions of solution splashing, acid gas condensation and backflow, air dust falling and the like exist at the container opening, so that the loss or pollution of components to be detected in the sample digestion solution can be caused, and the acid gas is directly discharged into the atmosphere to cause environmental pollution. The vacuum acid removing needs to be provided with a special acid removing pipe or a special sealing plug and a special heater. When the special acid removing pipe is used, the sample digestion solution needs to be transferred into the acid removing pipe, each acid removing pipe is hermetically connected with a branch vacuum pipe, and then heating and vacuumizing are performed to remove acid; when the special sealing plug is used, sample digestion pipes with fixed calibers are matched (digestion liquid does not need to be transferred), each digestion pipe is hermetically connected with a branch vacuum pipe, and then heating and vacuumizing are carried out to remove acid. The existing vacuum acid-removing method needs to use special matched pipes and plugs, cannot remove acid from containers such as beakers, conical flasks, test tubes, non-customized sample digestion pipes and the like, and has specificity and no universality; meanwhile, each pipe with the sample is hermetically connected with the branch vacuum pipe, the operation is complicated and time-consuming, the branch vacuum pipe is cooled by air in the air, liquid drops can be formed and flow back after the steam of the sample digestion solution is cooled, if the liquid drops flow back to a part of the branch vacuum pipe close to the sealing plug, pollution is formed, and the liquid drops are difficult to clean.
Disclosure of Invention
Therefore, the technical problems to be solved by the invention are that the sample is heated to boiling by adopting a bottom heating mode in the acid removing process in the conventional electric heating acid removing and vacuum acid removing modes, so that the sample is easily lost or polluted, and the vacuum acid removing mode needs a special matching device, is complex in operation, consumes time, easily causes backflow and the like, so that the acid removing device and the acid removing system are further provided.
The invention provides an acid-dispelling device, which comprises a box body and a water tank, wherein the box body is provided with an acid gas outlet, the water tank also comprises a water tank,
the transparent glass window is arranged at the top of the box body;
and the infrared heating device is arranged outside the box body and positioned on the upper part of the transparent glass window, so that infrared light rays emitted by the infrared heating device penetrate through the transparent glass window to enter the box body so as to heat acid-containing solution in the box body.
Optionally, the method further comprises the step of,
and the acid-resistant coating is arranged on the lower surface of the transparent glass, and infrared rays can penetrate through the acid-resistant coating and enter the box body.
Optionally, the method further comprises the step of,
a temperature control device arranged outside the box body,
the temperature sensing device is arranged on the box body or in the box body, and the temperature control device is respectively connected with the infrared heating device and the temperature sensing device so as to control the temperature in the box body.
Optionally, the transparent glass window is a quartz glass window, and the temperature sensing device is a temperature probe.
Optionally, the box body comprises a box body door, and the material of the box body door is transparent hard plastic.
The invention provides an acid-dispelling system, which comprises the acid-dispelling device.
Optionally, the acid gas recovery device further comprises an acid gas condensing device, an acid gas recovery device and a vacuum pumping device which are sequentially communicated, and an air inlet of the acid gas condensing device is communicated with an acid gas outlet of the box body.
Optionally, the sour gas recovery unit is including the sour collection device of liquid, sour gas absorbing device and the anti-suck-back device that communicate the setting in proper order, the import of the sour collection device of liquid with sour gas condensing equipment's gas outlet intercommunication, the gas outlet of anti-suck-back device with evacuating device intercommunication.
Optionally, the acid gas absorption device includes a first acid gas absorption bottle and a second acid gas absorption bottle, the first acid gas absorption bottle and the second acid gas absorption bottle are communicated through a U-shaped gas pipeline, and two ports of the U-shaped gas pipeline extend to the bottoms of the first acid gas absorption bottle and the second acid gas absorption bottle, respectively.
Optionally, the acid gas outlet of the box body is arranged on the side wall of the box body close to the top, a hollow tube is arranged at the acid gas outlet of the box body, one end of the hollow tube extends into the box body, and the other end of the hollow tube is located outside the box body and connected with the air inlet of the acid gas condensing device.
The technical scheme of the invention has the following advantages:
the invention provides an acid dispelling device, which comprises a box body, a transparent glass window and a water tank, wherein the box body is provided with an acid gas outlet; and the infrared heating device is arranged outside the box body and positioned on the upper part of the transparent glass window, so that infrared light rays emitted by the infrared heating device penetrate through the transparent glass window to enter the box body so as to heat acid-containing solution in the box body.
According to the acid removing device, the transparent glass window is arranged at the top of the box body, the infrared heating device is arranged at the upper part of the transparent glass window and emits infrared rays to penetrate through the transparent glass window to irradiate into the box body, when acid-containing sample solution is placed in the box body, infrared rays irradiate the upper surface of the acid-containing sample solution and directly heat the upper surface of the acid-containing sample solution, the internal temperature of the acid-containing sample solution is lower than that of the upper surface, the upper surface is highest in temperature and is in a sub-boiling state, acid components directly volatilize on the upper surface of the sample solution, the sample components are not carried away from the solution liquid level due to boiling, and compared with an acid removing mode that the sample solution is heated from the bottom to the boiling state, the acid removing device can.
Meanwhile, the upper surface of the acid-containing sample solution is directly heated by infrared rays, the temperature difference of infrared heating is small, the sample solution is in a sub-boiling state, the acid removing time between samples in the same batch is short and long, the acid removing time is mainly determined by the area of the upper surface of the sample solution, if the sizes of the sample containers in the same batch are the same, the parallel acid removing of the samples in the same batch is basically completed at the same time, no operation is performed in the middle process, and the operation labor is greatly saved.
The acid removing device is strong in universality, and can be used for removing acid from sample containers such as beakers, conical flasks, test tubes and digestion tubes with various specifications; the sample digestion solution does not need to be transferred to a special acid dispelling pipe, a matched special sealing plug is also not needed, only the container or the digestion pipe containing the sample digestion solution is placed in a tray or a test tube rack and then placed in a box body, the infrared heating device is opened for heating to dispel acid, and each container with the sample digestion solution does not need to be subjected to one-by-one closed operation, so that the time and labor are saved, the operation is simple and convenient, and batch operation can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the acid-expelling system of the present invention;
reference numerals:
1-a temperature control device; 2-a temperature sensing device; 3, a box body; 4-infrared heating means; 5-a transparent glass window; 6-acid resistant coating; 7-a box door; 8-acid gas condensing means; 9-a liquid acid collection device; 10-a first acid gas absorption bottle; 11-a second acid gas absorption bottle; 12-anti-suck back device; 13-a vacuum-pumping device; 14-acid gas outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the acid-dispelling device provided by the present invention comprises a box body 3, wherein the box body 3 is provided with an acid gas outlet 14, and further comprises a transparent glass window 5 arranged at the top of the box body 3; infrared heating device 4, set up in outside the box 3, and be located 5 upper portions of transparent glass window, so that the infrared ray that infrared heating device 4 sent sees through inside transparent glass window 5 gets into box 3 to heat the acid-containing solution inside 3 boxes.
According to the acid removing device, the transparent glass window 5 is arranged at the top of the box body 3, the infrared heating device 4 is arranged on the upper portion of the transparent glass window 5, infrared rays emitted by the infrared heating device 4 penetrate through the transparent glass window 5 and are irradiated into the box body 3, when acid-containing sample solution is placed in the box body 3, the infrared rays are irradiated on the upper surface of the acid-containing sample solution, the upper surface of the acid-containing sample solution is directly heated, the internal temperature of the acid-containing sample solution is lower than that of the upper surface, the upper surface is at the highest temperature and is in a sub-boiling state, acid components are directly volatilized on the upper surface of the sample solution, the sample components are not carried away from the solution liquid level due to boiling, and compared with an acid removing mode that the sample solution is heated to be boiling at the. Meanwhile, the upper surface of the acid-containing sample solution is directly heated by infrared rays, the temperature difference of infrared heating is small, the sample solution is in a sub-boiling state, the acid removing time between samples in the same batch is short and long, the acid removing time is mainly determined by the area of the upper surface of the sample solution, if the sizes of the sample containers in the same batch are the same, the parallel acid removing of the samples in the same batch is basically completed at the same time, no operation is performed in the middle process, and the operation labor is greatly saved.
The acid removing device can be used for a reduced-pressure sub-boiling acid removing system, has strong universality, and can be used for removing acid from sample containers such as beakers, conical flasks, test tubes, digestion tubes and the like with various specifications; the sample digestion solution does not need to be transferred to a special acid dispelling pipe, a matched special sealing plug is not needed, only the container or the digestion pipe containing the sample digestion solution is placed in the tray or the test tube rack and then placed in the box body 3, the infrared heating device 4 is opened for heating, the acid can be dispelled, the container with the sample digestion solution does not need to be sealed one by one, the time and the labor are saved, the operation is simple and convenient, and the batch operation can be realized.
The material of the transparent glass window 5 is not specifically limited in the present invention, and alternatively, the transparent glass window 5 may be a quartz glass window. Alternatively, the infrared heating device 4 of the present invention may be an infrared heater. Optionally, the infrared heating device 4 is a far infrared heater. Optionally, the joint of the quartz glass window and the box body 3 is sealed by sealant. The target component of the sample of the acid-containing solution is not particularly limited in the present invention, and optionally, the acid-containing solution may be a sample digestion solution, and optionally, the acid component in the acid-containing solution may be hydrochloric acid, nitric acid, hydrofluoric acid, or a mixed acid thereof.
In an optional embodiment, the infrared ray detection device further comprises an acid-proof coating 6 arranged on the lower surface of the transparent glass, and infrared rays can enter the box body 3 through the acid-proof coating 6. According to the invention, the acid-resistant coating 6 is arranged on the lower surface of the transparent glass, and on one hand, infrared rays can penetrate through the acid-resistant coating 6 to enter the box body 3 so as to heat acid-containing solution in the box body 3; on the other hand, the acid-resistant coating 6 prevents the volatile acid gases from corroding the transparent glass window 5. The material of the acid-proof coating 6 is the existing known material, and can be obtained commercially, and optionally, the material of the acid-proof coating 6 can be optical-grade PMMA (polymethyl methacrylate) paint, and transparent self-drying Teflon paint.
In an optional embodiment, the temperature control device 1 is disposed outside the box 3, and the temperature sensing device 2 is disposed on the box 3 or inside the box 3, and the temperature control device 1 is connected to the infrared heating device 4 and the temperature sensing device 2, respectively, to control the temperature inside the box 3. Alternatively, the temperature control device 1 may be a temperature controller, and the temperature sensing device 2 may be a temperature probe. Alternatively, the temperature control device 1 may be a thermostat controller. The temperature control device 1 is respectively connected with the infrared heating device 4 and the temperature probe, the temperature probe receives a temperature signal in the box body 3 and then transmits the temperature signal to the temperature control device 1, the temperature control device 1 controls the heating power of the infrared heating device, and the temperature control device 1, the infrared heating device and the temperature probe are mutually matched to keep the temperature in the box body 3 constant. Alternatively, the temperature probe may be provided on a side wall of the case 3.
In an alternative embodiment, the box 3 comprises a box door 7, and the material of the box door 7 is transparent rigid plastic. Optionally, a door frame of the box body door 7 is provided with sealant, so that the box body 3 can be prevented from air leakage when the door is closed. The box body 3 further comprises a box body top, a box body bottom and a box body side wall, wherein a closed cavity can be formed by the box body top, the box body bottom, the box body door and the box body side wall, and the closed cavity is conventional in the field and is not described herein in detail. Optionally, the box body 3 is composed of a bottom panel, an upper quartz glass window, a rear panel, a left panel, a right panel, and a front side door.
The invention also provides an acid-expelling system, which is a vacuum sub-boiling acid-expelling system, as shown in fig. 1, and comprises the acid-expelling device. In an optional embodiment, the acid gas recovery device further comprises an acid gas condensing device 8, an acid gas recovery device and a vacuum pumping device 13 which are sequentially communicated, and an air inlet of the acid gas condensing device 8 is communicated with an acid gas outlet 14 of the box body 3. Optionally, the acid gas condensing device 8 is a condensing tube, and the vacuum pumping device 13 is a vacuum pump. When the vacuum pump is started, negative pressure is formed in the box body 3, acid gas volatilized from the box body 3 enters the condensation pipe through the acid gas outlet 14 of the box body 3, most of the acid gas is liquefied into condensed acid liquid by utilizing condensed water flowing in the condensation pipe, and then the condensed acid liquid and the acid gas which is not liquefied enter the acid gas recovery device for further recovery. Optionally, the connection parts of the box body 3 are all tightly connected, and the communication of the acid gas condensing device 8, the acid gas recovery device and the vacuum pumping device 13 is all tightly connected.
In an optional embodiment, the acid gas recovery device comprises a liquid acid collecting device 9, an acid gas absorbing device and an anti-back suction device 12 which are sequentially communicated, an inlet of the liquid acid collecting device 9 is communicated with an outlet of the acid gas condensing device 8, and an outlet of the anti-back suction device 12 is communicated with the vacuum pumping device 13. Optionally, the acid gas absorption device includes a first acid gas absorption bottle 10 and a second acid gas absorption bottle 11, the first acid gas absorption bottle 10 and the second acid gas absorption bottle 11 are communicated through a U-shaped gas pipeline, and two ports of the U-shaped gas pipeline extend to the bottoms of the first acid gas absorption bottle 10 and the second acid gas absorption bottle 11, respectively. The liquid acid collecting device 9 may be a liquid acid collecting bottle, which is an empty bottle for receiving liquefied acid. The first acid gas absorption bottle 10 and the second acid gas absorption bottle 11 are filled with alkali liquor for absorbing acid gas which is not liquefied; two ports of the U-shaped gas pipeline extend into the bottom of the alkali liquor, and acid gas which is not absorbed by the alkali liquor in the first acid gas absorption bottle 10 can be further absorbed by the alkali liquor in the second acid gas absorption bottle 11 through the U-shaped gas pipeline. Optionally, the first acid gas absorption bottle 10 may be an empty bottle, and the second acid gas absorption bottle 11 is filled with alkali liquor, and this arrangement can effectively prevent the alkali liquor in the second acid gas absorption bottle 11 from being sucked backwards. The suck back prevention device 12 may be an empty bottle for preventing suck back of liquid. The invention utilizes the mutual cooperation of the liquid acid collecting device 9, the acid gas absorbing device and the suck-back preventing device 12, thereby not only facilitating the recovery of acid liquor, but also reducing the consumption of alkali solution for neutralizing acid gas, and being more environment-friendly. Optionally, a bottle mouth of the first acid gas absorption bottle 10 is provided with a gas pipeline, the gas pipeline is designed to be short-long in mutual circulation, and a bottle mouth of the second acid gas absorption bottle 11 is provided with a gas pipeline, and the gas pipeline is also designed to be short-long in mutual circulation. Optionally, the bottle mouth connecting pipes of the liquid acid collecting device 9 and the suck-back prevention device 12 are both in a short-short suck-back prevention design.
In an optional embodiment, the acid gas outlet 14 of the box 3 is disposed on a side wall of the box 3 near the top, a hollow tube is disposed at the acid gas outlet 14 of the box 3, one end of the hollow tube extends into the box 3, and the other end of the hollow tube is located outside the box 3 and connected to the gas inlet of the acid gas condensing unit 8. Alternatively, the hollow pipe may be connected to the gas inlet of the acid gas condensation device 8 through an exhaust pipe. Because the box body 3 is heated by the infrared heater at the top, the temperature at the top is highest, the acid gas outlet 14 of the box body 3 is arranged on the side wall of the box body 3 close to the top, the acid gas in the box body 3 can not generate condensate and reflux, and the sample in the box body 3 is rarely polluted by the acid gas.
In actual work, an open container containing acid-containing solution is placed into a box body 3, a box door is closed, a vacuum pump is started, heating power of an infrared heating device 4 is controlled through a temperature control device 1 according to properties such as boiling point of the acid-containing solution to heat the upper surface of the acid-containing solution, the internal temperature of the acid-containing solution is lower than that of the upper surface at the moment, the upper surface is at the highest temperature and is in a sub-boiling state, acid components are directly volatilized from the upper surface of the sample solution, acid gas volatilized from the box body 3 enters a condenser pipe through an acid gas outlet 14 of the box body 3, most of the acid gas is liquefied into condensed acid liquid by using condensate water flowing in the condenser pipe, the condensed acid liquid is collected into a liquid acid collecting bottle, uncondensed acid gas is absorbed by alkali liquor in a first acid gas absorbing bottle 10 and a second acid gas absorbing bottle 11, and heating is stopped after the acid components in the acid-containing, the vacuum pump was turned off.
The technical solution of the present invention is explained by the following embodiments:
example 1
The embodiment provides an acid dispelling device, as shown in fig. 1, comprising a box body 3, wherein the box body 3 is provided with an acid gas outlet 14, and further comprising a transparent glass window 5 arranged at the top of the box body 3; infrared heating device 4, set up in outside the box 3, and be located 5 upper portions of transparent glass window, so that the infrared ray that infrared heating device 4 sent sees through inside transparent glass window 5 gets into box 3 to heat the acid-containing solution inside 3 boxes.
Further, the infrared ray infrared absorption box also comprises an acid-resistant coating 6 which is arranged on the lower surface of the transparent glass, and infrared rays can enter the box body 3 through the acid-resistant coating 6; the temperature control device 1 is arranged outside the box body 3, the temperature sensing device 2 is arranged on the box body 3 or inside the box body 3, and the temperature control device 1 is respectively connected with the infrared heating device 4 and the temperature sensing device 2 so as to control the temperature in the box body 3. The transparent glass window 5 is a quartz glass window, and the temperature sensing device 2 is a temperature probe; the box body 3 comprises a box body door 7, and the material of the box body door 7 is transparent hard plastic.
Example 2
The embodiment provides an acid-dispelling system, as shown in fig. 1, including the acid-dispelling device described in embodiment 1, further including an acid gas condensing device 8, an acid gas recycling device and a vacuum-pumping device 13 which are sequentially communicated, wherein an air inlet of the acid gas condensing device 8 is communicated with an acid gas outlet 14 of the box body 3. Further, the acid gas recovery device comprises a liquid acid collecting device 9, an acid gas absorbing device and an anti-suck-back device 12 which are sequentially communicated, wherein an inlet of the liquid acid collecting device 9 is communicated with an air outlet of the acid gas condensing device 8, and an air outlet of the anti-suck-back device 12 is communicated with the vacuumizing device 13; the acid gas absorption device comprises a first acid gas absorption bottle 10 and a second acid gas absorption bottle 11, wherein the first acid gas absorption bottle 10 and the second acid gas absorption bottle 11 are communicated through a U-shaped gas pipeline, and two ports of the U-shaped gas pipeline respectively extend to the bottoms of the first acid gas absorption bottle 10 and the second acid gas absorption bottle 11. Further, the acid gas outlet 14 of the box body 3 is arranged on the side wall of the box body 3 close to the top, a hollow pipe is arranged at the acid gas outlet 14 of the box body 3, one end of the hollow pipe extends into the box body 3, and the other end of the hollow pipe is located outside the box body 3 and is connected with the gas inlet of the acid gas condensing device 8.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An acid dispelling device comprises a box body and is characterized in that the box body is provided with an acid gas outlet, and the acid dispelling device also comprises a water tank,
the transparent glass window is arranged at the top of the box body;
and the infrared heating device is arranged outside the box body and positioned on the upper part of the transparent glass window, so that infrared light rays emitted by the infrared heating device penetrate through the transparent glass window to enter the box body so as to heat acid-containing solution in the box body.
2. The acid-repelling device of claim 1, further comprising,
and the acid-resistant coating is arranged on the lower surface of the transparent glass, and infrared rays can penetrate through the acid-resistant coating and enter the box body.
3. The acid-repelling device of claim 1 or 2, further comprising,
the temperature control device is arranged outside the box body;
the temperature sensing device is arranged on the box body or in the box body, and the temperature control device is respectively connected with the infrared heating device and the temperature sensing device so as to control the temperature in the box body.
4. The acid-repelling device according to any one of claims 1-3, wherein the transparent glass window is a quartz glass window and the temperature sensing device is a temperature probe.
5. The acid-repelling device of any one of claims 1-4, wherein the box comprises a box door made of a transparent rigid plastic.
6. An acid-expelling system, comprising the acid-expelling device of any one of claims 1-5.
7. The acid-dispelling system as claimed in claim 6, further comprising an acid gas condensing device, an acid gas recovering device and a vacuum-pumping device, which are sequentially connected, wherein the gas inlet of the acid gas condensing device is connected to the acid gas outlet of the box.
8. The acid-dispelling system as claimed in claim 6 or 7, wherein the acid gas recovery device comprises a liquid acid collecting device, an acid gas absorbing device and an anti-suck-back device, which are sequentially connected, wherein an inlet of the liquid acid collecting device is connected to an outlet of the acid gas condensing device, and an outlet of the anti-suck-back device is connected to the vacuum-pumping device.
9. The acid-dispelling system according to any one of claims 6 to 8, wherein the acid gas absorption device comprises a first acid gas absorption bottle and a second acid gas absorption bottle, the first acid gas absorption bottle and the second acid gas absorption bottle are communicated through a U-shaped gas pipeline, and two ports of the U-shaped gas pipeline respectively extend to the bottoms of the first acid gas absorption bottle and the second acid gas absorption bottle.
10. The acid-dispelling system as claimed in any one of claims 6 to 9, wherein the acid gas outlet of the tank is disposed on a side wall of the tank near the top, a hollow tube is disposed at the acid gas outlet of the tank, one end of the hollow tube extends into the tank, and the other end of the hollow tube is located outside the tank and connected to the gas inlet of the acid gas condensing device.
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| CN202010568037.XA CN111781054A (en) | 2020-06-19 | 2020-06-19 | Acid removing device and acid removing system |
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| CN202010568037.XA CN111781054A (en) | 2020-06-19 | 2020-06-19 | Acid removing device and acid removing system |
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| CN111781054A true CN111781054A (en) | 2020-10-16 |
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| CN113702149A (en) * | 2021-08-31 | 2021-11-26 | 上海屹尧仪器科技发展有限公司 | Infrared thermal imaging acid-removing constant volume method |
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Application publication date: 20201016 |