CN109999520B - Multi-station sealing cover plate of parallel concentrator - Google Patents
Multi-station sealing cover plate of parallel concentrator Download PDFInfo
- Publication number
- CN109999520B CN109999520B CN201910382634.0A CN201910382634A CN109999520B CN 109999520 B CN109999520 B CN 109999520B CN 201910382634 A CN201910382634 A CN 201910382634A CN 109999520 B CN109999520 B CN 109999520B
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- China
- Prior art keywords
- groove
- cover plate
- diversion
- total
- plate body
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 8
- 238000012864 cross contamination Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
-
- 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
Abstract
The invention discloses a multi-station sealing cover plate of a parallel concentrator, which comprises a cover plate body, a top plate and a suction port connector, wherein the cover plate body is provided with a plurality of steam ports for sealing and butting test tubes, the suction port connector is connected with a vacuum pump for extracting steam, a total diversion trench is formed on the cover plate body and is in butt joint with the suction port connector, a diversion branch trench is formed on the cover plate body and is used for communicating the steam ports with the total diversion trench, the top plate is sealed and buckled with the cover plate body to cover the top plate above the diversion branch trench and the total diversion trench, and the diversion branch trench and the total diversion trench are sealed to form an integral steam channel. The invention can realize multi-station operation by one cover plate, ensures good air tightness, avoids the influence of solvent volatilization and leakage on the environment, avoids cross contamination among multi-station samples, and has simple structure and convenient operation.
Description
Technical Field
The invention belongs to the field of experimental instruments, and particularly relates to a multi-station sealing cover plate of a parallel concentrator.
Background
The parallel concentrator is a small instrument for quickly evaporating or quantitatively concentrating test tube samples by simultaneous heating/decompression/oscillation, and in the current stage of the industry, experimental staff generally adopt the following two prior technologies to carry out experiments:
1. by adopting a single sealing pressure head, the device can be opened singly when lofting or sampling is carried out each time, and particularly when the number of bits is relatively large, cross contamination among different samples is avoided, but the lofting action is complicated, and the efficiency is affected.
2. By adopting the nitrogen blowing mode, the sealing device and the cross contamination problem are omitted, but the solvent evaporated by the nitrogen blowing mode is directly volatilized into the air, so that the environmental pollution problem exists.
Disclosure of Invention
The invention aims to provide a multi-station sealing cover plate of a parallel concentrator, which has good air tightness, avoids the influence of solvent volatilization and leakage on the environment, and simultaneously has the advantages of simple structure and convenient operation, and the exquisite diversion trench design avoids the cross contamination among multi-station samples.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the utility model provides a sealed apron of multistation of concentrated appearance of parallel, includes apron body, roof and suction connection, and a plurality of steam mouthfuls that supply test tube seal to dock are offered to the apron body, the vacuum pump of extraction steam, its characterized in that are connected to the suction connection:
the cover plate body is provided with a total diversion trench, and the total diversion trench is in butt joint with the suction port joint;
a diversion branch groove is formed on the cover plate body, and the diversion branch groove is used for communicating the steam port with the total diversion groove;
the top plate is covered above the diversion branch groove and the total diversion groove by the top plate sealing and buckling cover plate body, and the diversion branch groove and the total diversion groove are sealed to form an integral steam channel.
Further, the diversion branch groove is higher than the total diversion groove, so that a height difference is formed between the diversion branch groove and the total diversion groove.
Further, the steam port is communicated with the total diversion trench by the oblique suction port joint direction of the diversion trench.
Further, a buffer groove is formed on the cover plate body; the flow guiding branch grooves and the buffer grooves are arranged on two sides of the total flow guiding groove, the flow guiding branch grooves on one side of the total flow guiding groove correspond to the buffer grooves on the other side in the path direction, and the outlets of the flow guiding branch grooves on one side are aligned to the inlets of the buffer grooves on the other side.
Further, the buffer groove and the diversion branch groove are positioned on the same horizontal plane.
Further, the path of the buffer tank and the path of the diversion branch tank are in the same direction or reverse direction.
Further, at least two total guiding grooves are arranged in parallel and converged to the suction port joint, one side buffer groove of one total guiding groove forms an extending buffer groove at the other side of the adjacent total guiding groove, and the outlet of the buffer groove is aligned with the inlet of the extending buffer groove.
Further, a knob is arranged on the top plate, a rotary hole in threaded connection with the knob is formed in the cover plate body, a through hole is formed in the top plate at the position corresponding to the rotary hole, and the knob penetrates through the through hole to be connected with the rotary hole, so that the top plate is fastened and fixed on the cover plate body.
Further, handles for holding are arranged on two sides of the cover plate body.
Further, the edge of the cover plate body forms a step groove, the top plate is matched with the step groove, and a first O-shaped ring is arranged between the top plate and the step groove, so that the top plate and the cover plate body are buckled through the first O-shaped ring in a sealing mode.
The working principle of the invention is as follows: and heating the solvent in the test tube, volatilizing the solvent into steam, entering the diversion branch groove through the steam port, entering the total diversion groove through the diversion branch groove, and finally pumping and recycling by a vacuum pump.
After the scheme is adopted, the gain effect of the invention is as follows:
(1) One cover plate realizes multi-station operation. The exquisite guiding gutter design can carry out multistation sample preparation simultaneously, and operation process is convenient, saves loaded down with trivial details getting the lofting action, improves work efficiency, can effectively avoid cross contamination between the multistation sample.
(2) Environmental protection. The multi-station steam is collected to the total diversion trench for pumping and recycling through the diversion branch trench, so that the pollution to the environment caused by direct discharge to the atmosphere is avoided.
(3) The structure is simple. The disassembly and assembly can be completed in a manual mode, and good air tightness is finally achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the invention in an exploded state;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a schematic view of the structure of the cover plate body of the present invention;
fig. 5 is an enlarged view at a in fig. 4;
fig. 6 is a top view of the cover body of the present invention.
Reference numerals illustrate:
the cover plate body 1, the steam port 11, the diversion branch groove 12, the diversion branch groove outlet 121, the total diversion groove 13, the buffer groove 14, the buffer groove inlet 141, the buffer groove outlet 142, the extended buffer groove 15, the extended buffer groove inlet 151, the rotary hole 16, the stepped groove 17, the handle 18, the junction hole 19, the top plate 2, the through hole 21, the suction port joint 3, the knob 4, the first O-shaped ring 5, the second O-shaped ring 6, the sealing piece 7 and the test tube 8.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, please refer to fig. 1-6.
A multi-station sealing cover plate of a parallel concentrator comprises a cover plate body 1, a top plate 2, a suction port connector 3 and a knob 4, wherein as shown in fig. 1-3, the cover plate body 1 is provided with a plurality of steam ports 11 for sealing and butting test tubes 8, the suction port connector 3 is connected with a vacuum pump (not shown in the figure) for extracting steam, a total diversion trench 13 is formed on the cover plate body 1, and the total diversion trench 13 is in butt joint with the suction port connector 3;
a diversion branch groove 12 is formed on the cover plate body 1, and the diversion branch groove 12 is used for communicating the steam port 11 with the total diversion groove 13;
the top plate 2 is sealed and buckled with the cover plate body 1, so that the top plate 2 covers the upper parts of the diversion branch groove 12 and the total diversion groove 13, and the diversion branch groove 12 and the total diversion groove 13 are sealed to form an integral steam channel.
The working principle of the invention is as follows: the solvent in the test tube 8 is heated, the solvent volatilizes into steam which enters the diversion branch groove 12 through the steam port 11, then enters the total diversion groove 13 through the diversion branch groove 12, and finally is pumped and recovered by the vacuum pump.
As a preferred embodiment, the diversion trench 12 is higher than the total diversion trench 13, so that a height difference is formed between the diversion trench 12 and the total diversion trench 13, as shown in fig. 5, when the total diversion trench 13 is condensed due to too large steam quantity, the condensed water will first stay in the total diversion trench 13 and not overflow the diversion trench 12, so as to effectively prevent the condensed water from flowing back to the test tube 8.
As shown in fig. 2 and 6, the path of the diversion trench 12 is inclined to the direction of the suction joint 3 to communicate the steam port 11 with the total diversion trench 13, so that the steam in the diversion trench 12 is more toward the suction joint 3, and can be pumped by the vacuum pump more.
In order to prevent splashing and spraying, a buffer groove 14 is also formed on the cover plate body 1; the diversion trench 12 and the buffer trench 14 are disposed on two sides of the total diversion trench 13, the path direction of the diversion trench 12 on one side of the total diversion trench 13 corresponds to the buffer trench 14 on the other side, and the outlet 121 of the diversion trench on one side is aligned to the inlet 141 of the buffer trench on the other side. This design allows each guide branch groove 12 to have a corresponding buffer groove 14, so that when the steam is pumped by the vacuum pump, the steam can be buffered along the buffer groove 14, so that the steam cannot run into other test tubes 8 due to too high pumping speed, the buffer path is prolonged, and the risk of cross contamination is avoided, as shown in fig. 6. On the basis of the design, the path of the buffer groove 14 and the path of the diversion branch groove 12 are designed to be in the same direction or in opposite directions to change the buffer path, so that the wall of the buffer groove can absorb the impact force, and the splashing effect is weakened.
The buffer groove 14 and the diversion branch groove 12 are positioned on the same horizontal plane, so that the outlet 121 of the diversion branch groove on one side is aligned with the inlet 141 of the buffer groove on the other side more accurately, and the splashing prevention effect is enhanced.
At least two total diversion trenches 13 are arranged in parallel and converged to the suction port joint 3, a buffer groove 14 on one side of one total diversion trench 13 forms an extended buffer groove 15 on the other side of the adjacent total diversion trench 13, an outlet 142 of the buffer groove is aligned with an inlet 151 of the extended buffer groove, in the embodiment, the number of the total diversion trenches 13 is increased to three, a junction hole 19 is formed at the junction of the total diversion trenches 13, and the junction hole 19 is communicated with the suction port joint 3; as the number of the total diversion trenches 13 is increased, the distance between the diversion branch trenches 12 and the suction port joint 3 is also increased, the suction force of the real air pump is also increased, the steam spraying effect is more serious, and the extended buffer trenches 15 can enable the total diversion trenches 13 with more numbers to obtain more buffer spaces, so that the steam spraying effect is weakened.
In this embodiment, according to the different position of arranging of steam mouth, steam can pass through one or two buffer tanks from water conservancy diversion branch groove to extending between the buffer tank, guarantees to have long enough buffering route to be used for buffering, effectively avoids cross contamination.
The knob 4 is arranged on the top plate 2, the cover plate body 1 is provided with a rotary hole 16 in threaded connection with the knob 4, the top plate 2 is provided with a through hole 21 at the position corresponding to the rotary hole 16, and the knob 4 passes through the through hole 21 to be connected with the rotary hole 16, so that the top plate 2 is fastened and fixed on the cover plate body 1, and the assembly and the disassembly are convenient. The rotary hole 16 is processed into a countersink, the second O-shaped ring 6 is placed at the counter bore of the countersink, the diameter of the through hole 21 is smaller than that of the counter bore, and when the top plate 2 is buckled on the cover plate body 1, the second O-shaped ring 6 seals the joint of the knob 4 and the countersink, so that good air tightness is maintained.
As shown in fig. 2 and fig. 4, in order to increase the air tightness, the edge of the cover plate body 1 forms a step groove 17, the top plate 2 is matched with the step groove 17, and a first O-ring 5 is placed between the top plate 2 and the step groove 17, so that the top plate 2 and the cover plate body 1 are buckled by the first O-ring 5 in a sealing way. As shown in fig. 3, the steam in the test tube 8 and the steam port 11 are sealed by the sealing sheet 7 so as not to leak, and when the steam enters the cover plate body 1 from the test tube 8, the steam can only be collected to the total diversion trench 13 along the diversion branch trench 12 and pumped by the vacuum pump under the common sealing of the first O-ring 5 and the second O-ring 6.
The two sides of the cover plate body 1 are provided with handles 18 for holding, and the cover plate body 1 can be lifted by hand through the handles 18 for adding solvent into the test tube 8.
The top plate 2 can be made of transparent material, such as glass, so that the working condition in the cover plate can be clearly observed when the top plate 2 is buckled on the cover plate body 1.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a sealed apron of multistation of concentrated appearance of parallel, includes apron body, roof and suction connection, and a plurality of steam mouthfuls that supply test tube seal to dock are offered to the apron body, the vacuum pump of extraction steam, its characterized in that are connected to the suction connection:
the cover plate body is provided with a total diversion trench, and the total diversion trench is in butt joint with the suction port joint;
a diversion branch groove is formed on the cover plate body, and the diversion branch groove is used for communicating the steam port with the total diversion groove;
the top plate is covered above the diversion branch groove and the total diversion groove by the top plate sealing and buckling cover plate body, and the diversion branch groove and the total diversion groove are sealed to form an integral steam channel;
the diversion branch groove is higher than the total diversion groove, so that a height difference is formed between the diversion branch groove and the total diversion groove;
the path of the diversion branch groove is inclined to the direction of the suction port joint to communicate the steam port with the total diversion groove;
a buffer groove is also formed on the cover plate body; the flow guiding branch grooves and the buffer grooves are arranged on two sides of the total flow guiding groove, the flow guiding branch grooves on one side of the total flow guiding groove correspond to the buffer grooves on the other side in the path direction, and the outlets of the flow guiding branch grooves on one side are aligned to the inlets of the buffer grooves on the other side.
2. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: the buffer groove and the diversion branch groove are positioned on the same horizontal plane.
3. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: the path of the buffer groove and the path of the diversion branch groove are in the same direction or reverse direction.
4. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: the at least two total diversion trenches are arranged in parallel and converged to the suction port joint, one side buffer groove of one total diversion trench forms an extending buffer groove at the other side of the adjacent total diversion trench, and the outlet of the buffer groove is aligned with the inlet of the extending buffer groove.
5. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: the rotary knob is arranged on the top plate, a rotary hole in threaded connection with the rotary knob is formed in the cover plate body, a through hole is formed in the position, corresponding to the rotary hole, of the top plate, and the rotary knob penetrates through the through hole to be connected with the rotary hole, so that the top plate is fastened and fixed on the cover plate body.
6. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: handles for holding are arranged on two sides of the cover plate body.
7. The multi-station sealing cover plate of a parallel concentrator of claim 1, wherein: the edge of the cover plate body forms a step groove, the top plate is matched with the step groove, and a first O-shaped ring is arranged between the top plate and the step groove, so that the top plate and the cover plate body are buckled through the first O-shaped ring in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382634.0A CN109999520B (en) | 2019-05-09 | 2019-05-09 | Multi-station sealing cover plate of parallel concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382634.0A CN109999520B (en) | 2019-05-09 | 2019-05-09 | Multi-station sealing cover plate of parallel concentrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109999520A CN109999520A (en) | 2019-07-12 |
| CN109999520B true CN109999520B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910382634.0A Active CN109999520B (en) | 2019-05-09 | 2019-05-09 | Multi-station sealing cover plate of parallel concentrator |
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| Country | Link |
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| CN (1) | CN109999520B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398872B (en) * | 2020-03-26 | 2022-09-06 | 河南城建学院 | Rectifying column kettle liquid nutrient content recovery system for producing soybean polysaccharide |
| CN113237728B (en) * | 2021-04-14 | 2023-05-23 | 北京莱伯泰科仪器股份有限公司 | Independent sealing and integral sealing two-in-one device for vacuum multi-position concentration |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU33820U1 (en) * | 2003-06-18 | 2003-11-10 | Открытое акционерное общество "Новосибирский завод химконцентратов" | Device for monitoring the concentration of solutions |
| CN203220768U (en) * | 2013-04-22 | 2013-10-02 | 深圳市朗诚实业有限公司 | Parallel evaporator |
| CN203220769U (en) * | 2013-04-22 | 2013-10-02 | 深圳市朗诚实业有限公司 | Vacuum cover |
| CN105363225A (en) * | 2015-11-17 | 2016-03-02 | 鼎泰（湖北）生化科技设备制造有限公司 | Concentrator |
| CN206321500U (en) * | 2016-12-08 | 2017-07-11 | 深圳市赛恩思特科技有限公司 | A kind of Multi-example concentrating instrument |
| CN207623113U (en) * | 2017-11-28 | 2018-07-17 | 南京杰宁医药科技有限公司 | A kind of efficient nitrogen blows concentrating instrument |
| AU2018101255A4 (en) * | 2018-08-28 | 2018-10-04 | Hangzhou Maishou Technology Co., Ltd | A steam table |
| CN209885266U (en) * | 2019-05-09 | 2020-01-03 | 睿科集团(厦门)股份有限公司 | Multi-station sealing cover plate of parallel concentrator |
-
2019
- 2019-05-09 CN CN201910382634.0A patent/CN109999520B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU33820U1 (en) * | 2003-06-18 | 2003-11-10 | Открытое акционерное общество "Новосибирский завод химконцентратов" | Device for monitoring the concentration of solutions |
| CN203220768U (en) * | 2013-04-22 | 2013-10-02 | 深圳市朗诚实业有限公司 | Parallel evaporator |
| CN203220769U (en) * | 2013-04-22 | 2013-10-02 | 深圳市朗诚实业有限公司 | Vacuum cover |
| CN105363225A (en) * | 2015-11-17 | 2016-03-02 | 鼎泰（湖北）生化科技设备制造有限公司 | Concentrator |
| CN206321500U (en) * | 2016-12-08 | 2017-07-11 | 深圳市赛恩思特科技有限公司 | A kind of Multi-example concentrating instrument |
| CN207623113U (en) * | 2017-11-28 | 2018-07-17 | 南京杰宁医药科技有限公司 | A kind of efficient nitrogen blows concentrating instrument |
| AU2018101255A4 (en) * | 2018-08-28 | 2018-10-04 | Hangzhou Maishou Technology Co., Ltd | A steam table |
| CN209885266U (en) * | 2019-05-09 | 2020-01-03 | 睿科集团(厦门)股份有限公司 | Multi-station sealing cover plate of parallel concentrator |
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| Publication number | Publication date |
|---|---|
| CN109999520A (en) | 2019-07-12 |
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