CN209148620U - A kind of air cooling equipment for gas chromatograph - Google Patents
A kind of air cooling equipment for gas chromatograph Download PDFInfo
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- CN209148620U CN209148620U CN201822016534.XU CN201822016534U CN209148620U CN 209148620 U CN209148620 U CN 209148620U CN 201822016534 U CN201822016534 U CN 201822016534U CN 209148620 U CN209148620 U CN 209148620U
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- chromatograph
- temperature control
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Abstract
The utility model discloses a kind of air cooling equipments for gas chromatograph, including frequency conversion refrigeration machine and air-cooled shell, air inlet pipe is connected between the frequency conversion refrigeration machine and air-cooled shell, and the position on air-cooled outer shell outer wall positioned at air inlet pipe side is equipped with escape pipe, the inside of the air-cooled shell slidably connects chromatograph by installing guide rail, the frequency conversion refrigeration machine and chromatograph are electrically connected with external power supply, the air-cooled interior of shell, which is located at the position of chromatograph side, is welded with first partition and second partition, the second partition is between first partition and chromatograph, the utility model is provided with splitter cavity, gas-guide tube and gas port, the cooling air unit is when being cooled down, the separation in the device between air inlet and outlet is effectively realized by splitter cavity, to effectively prevent the phenomenon that air inlet is mixed with outlet, guarantee The air inlet of the device has efficient cooling effect.
Description
Technical field
The utility model belongs to gas chromatograph techniques field, and in particular to a kind of air-cooled dress for gas chromatograph
It sets.
Background technique
Gas chromatograph, refers to the chromatography instrument for using gas as mobile phase, and principle mainly utilizes substance
The difference of boiling point, polarity and adsorption property realizes the physical separation of mixture, uses temperature in gas chromatograph during this
Degree then has large effect to detection structure, and carries out cold-hot wind using included fan in existing hearth of gas phase chromatograph
Alternating temperature control, or overlap joint external refrigeration device carries out cooperation cooling, but no matter which kind of form to carry out its gas of temperature control using
There is the non-uniform phenomenon that circulates in stream, during being circulated so as to cause the non-uniform temperature in chromatograph furnace, shadow
The final separating effect of sample is rung, in addition existing chromatograph is easy to appear temperature during being cooled down reduces too fast show
As so that chromatograph aging speed is accelerated, so that chromatographic service life reduces.
Utility model content
The purpose of this utility model is to provide a kind of air cooling equipments for gas chromatograph, to solve existing chromatography
Instrument is easy to appear temperature control unevenness during carrying out air-cooled and temperature declines too fast problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of air-cooled dress for gas chromatograph
It sets, including frequency conversion refrigeration machine and air-cooled shell, air inlet pipe is connected between the frequency conversion refrigeration machine and air-cooled shell, and air-cooled outer
Position on shell outer wall positioned at air inlet pipe side is equipped with escape pipe, and the inside of the air-cooled shell is connected by installation guide rail sliding
It is connected to chromatograph, the frequency conversion refrigeration machine and chromatograph are electrically connected with external power supply, and the air-cooled interior of shell is located at color
Be welded with first partition and second partition at the position of spectrometer side, the second partition be located at first partition and chromatograph it
Between, and splitter cavity is formed between first partition and second partition, the inside of the splitter cavity is equipped with temperature control column, the temperature control
Sealing side plate is welded on the two sides outer wall of column, splitter cavity is separated to form inlet chamber and outlet by the temperature control column and sealing side plate
Chamber is connected with gas-guide tube, and offers gas port on chromatographic side outer wall between the second partition and chromatograph, described
Gas-guide tube is connected together with gas port.
Preferably, the first partition is far from being welded with temperature control valve on the side outer wall of splitter cavity, the temperature control valve it is interior
Portion is equipped with spool, and temperature control valve is internally located at the position at spool both ends and offers air inlet and venthole respectively, the valve
Connected set is sheathed on core, the inside of the temperature control column is equipped with piston, is welded with piston rod on the side outer wall of the piston, institute
The inside that piston rod is located at temperature control valve far from one end of piston is stated, and is rotated and is connected by shaft between one end and connected set of piston rod
It is connected to connecting rod.
Preferably, there are three the gas-guide tube and gas port are arranged altogether, and three gas-guide tubes and gas port correspond, institute
It states chromatograph and is internally located at the position of gas port side and be provided with air guide filter plate, connected between the gas port and air guide filter plate
Several micropores.
Preferably, the middle position of the second partition is embedded with sealing shroud, and the sealing shroud is sheathed on temperature control column
On outer wall, and sealing shroud is located at the side of sealing side plate.
Preferably, the temperature control column is located at the position where chromatograph far from one end of temperature control valve, and the one of temperature control column
End is embedded with thermally conductive sheet.
The utility model compared with prior art, has the advantages that
(1) the utility model is provided with splitter cavity, gas-guide tube and gas port, which passes through when being cooled down
Splitter cavity effectively realizes the separation in the device between air inlet and outlet, so that effectively prevent that air inlet mixes with outlet shows
As, guarantee the device air inlet have efficient cooling effect, additionally by gas-guide tube and gas port cooperation so that temperature compared with
Low air inlet from top to bottom imports, to liquidate with the hot-air formation in chromatograph, on the one hand improves the cooling effect of the device
On the other hand fruit makes cooling effect more uniform, and the conducting of gas port and air guide filter plate can effectively realize the uniform of air inlet
It imports, further achievees the effect that uniform decrease in temperature, to effectively avoid local temperature occur in chromatograph burner hearth too high or too low
The phenomenon that, so that the chromatographic testing result is more accurate.
(2) the utility model is provided with temperature control valve and temperature control column, is felt in real time by the mutual cooperation of temperature control valve and temperature control column
Know the temperature in chromatograph, and the temperature change in chromatograph can then cause the variation of gas volume in temperature control column, to make to control
Piston rod and piston in Wen Zhu generate movement, and drive the generation of the spool in temperature control valve mutually to strain by the movement of piston rod
Change, to change the ratio between the air inlet of temperature control valve and outlet, to achieve the effect that adjust temperature control, such as when temperature reduces
When, piston rod can generate retraction because the shrinkage of gas acts on, and piston rod passes through connecting rod with movable valve plug to the one of air inlet at this time
Side is mobile, so that air inlet reduces, to achieve the purpose that reducing cold air leads into speed, so that chromatographic cooling rate drops
It is low, effectively avoid occurring temperature in temperature-fall period reducing too fast phenomenon, while also avoid by external monitoring device into
The situation that row is adjusted, is effectively reduced the temperature control cost of the device.
Detailed description of the invention
Fig. 1 is the front view of the utility model；
Fig. 2 is the chromatographic structural schematic diagram of the utility model；
Fig. 3 is the chromatographic side view of the utility model；
Fig. 4 is enlarged drawing at the A of the utility model；
Fig. 5 is the top view of the utility model temperature control column；
Fig. 6 is the structural schematic diagram of the utility model temperature control valve；
Fig. 7 uses schematic diagram for the utility model temperature control valve；
In figure: 1- frequency conversion refrigeration machine, 2- air inlet pipe, the air-cooled shell of 3-, 4- first partition, 5- second partition, 6- chromatograph,
It is close that 7- installs guide rail, 8- splitter cavity, 9- escape pipe, 10- temperature control valve, 11- gas-guide tube, 12- gas port, 13- air guide filter plate, 14-
It is living to seal side plate, 15- sealing shroud, 16- temperature control column, 17- spool, 18- connecting rod, 19- connected set, 20- piston rod, 21- thermally conductive sheet, 22-
Plug.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-Fig. 7, the utility model provides the following technical solutions: a kind of for the air-cooled of gas chromatograph
Device, including frequency conversion refrigeration machine 1 and air-cooled shell 3, frequency conversion refrigeration machine 1 can realize automatic frequency-conversion according to the variation of the air-flow amount of leading,
To make the device that there is certain energy-saving effect, air inlet pipe 2 is connected between frequency conversion refrigeration machine 1 and air-cooled shell 3, and air-cooled
Position on 3 outer wall of shell positioned at 2 side of air inlet pipe is equipped with escape pipe 9, and the inside of air-cooled shell 3 is sliding by installation guide rail 7
Dynamic to be connected with chromatograph 6, frequency conversion refrigeration machine 1 and chromatograph 6 are electrically connected with external power supply, and air-cooled shell 3 is internally located at color
It is welded with first partition 4 and second partition 5 at the position of 6 side of spectrometer, passes through being combined with for first partition 4 and second partition 5
Effect realizes the sealing of splitter cavity 8, and guarantees that the circulation of the device interior air-flow is both needed to by splitter cavity 8, so that splitter cavity 8 has
Effect realizes shunting function, and second partition 5 is between first partition 4 and chromatograph 6, and between first partition 4 and second partition 5
It is formed with splitter cavity 8, the inside of splitter cavity 8 is equipped with temperature control column 16, is welded with sealing side plate on the two sides outer wall of temperature control column 16
14, splitter cavity 8 is separated to form inlet chamber and outlet chamber by temperature control column 16 and sealing side plate 14, is effectively realized by splitter cavity 8
Separation in the device between air inlet and outlet guarantees the device to effectively prevent the phenomenon that air inlet is mixed with outlet
Air inlet has efficient cooling effect, gas-guide tube 11 is connected between second partition 5 and chromatograph 6, and outside the side of chromatograph 6
Gas port 12 is offered on wall, gas-guide tube 11 is connected together with gas port 12, passes through having between gas-guide tube 11 and gas port 12
On the one hand effect cooperation improves the uniformity of the device air inlet, on the other hand effectively realizes between air inlet and hot inside air
Convection current, to effectively improve the cooling effect of the device.
In order to guarantee temperature control valve 10 and temperature control column 16 can be carried out automatic current limiting, in the present embodiment, it is preferred that first partition 4
It is welded with temperature control valve 10 on side outer wall far from splitter cavity 8, the inside of temperature control valve 10 is equipped with spool 17, and in temperature control valve 10
Portion is located at the position at 17 both ends of spool offers air inlet and venthole respectively, and connected set 19, temperature control column are sheathed on spool 17
16 inside is equipped with piston 22, is welded with piston rod 20 on the side outer wall of piston 22, piston rod 20 far from piston 22 one
End is located at the inside of temperature control valve 10, and is rotatably connected to connecting rod 18 by shaft between one end of piston rod 20 and connected set 19, leads to
The mutual cooperation between temperature control valve 10 and temperature control column 16 is crossed, effectively realizes metering function of the device in temperature changing process,
The phenomenon that make the cooling rate of the device gradually decrease, avoid the occurrence of fast cooling under the premise of guaranteeing cooling effect,
To improve the service life of chromatograph 6 indirectly.
In order to effectively realize the uniform air guide of gas-guide tube 11 Yu gas port 12, in the present embodiment, it is preferred that 11 He of gas-guide tube
There are three gas port 12 is arranged altogether, and three gas-guide tubes 11 and gas port 12 correspond, and chromatograph 6 is internally located at gas port 12
It is provided with air guide filter plate 13 at the position of side, several micropores are connected between gas port 12 and air guide filter plate 13.
In order to improve the leakproofness between second partition 5 and temperature control column 16, in the present embodiment, it is preferred that second partition 5
Middle position is embedded with sealing shroud 15, and sealing shroud 15 is sheathed on the outer wall of temperature control column 16, and sealing shroud 15 is located at sealed sides
The side of plate 14.
In order to improve the heat transfer efficiency of temperature control column 16, in the present embodiment, it is preferred that temperature control column 16 far from temperature control valve 10 one
End is located at the position at 6 place of chromatograph, and one end of temperature control column 16 is embedded with thermally conductive sheet 21.
The working principle and process for using of the utility model: when using the utility model, starting and the device institute first
The frequency conversion refrigeration machine 1 of connection so that air flows into the inside of air-cooled shell 3 by air inlet pipe 2 after compression cooling, air-flow into
The air inlet in temperature control valve 10 is needed when entering air-cooled shell 3, subsequently into the inlet chamber in splitter cavity 8, and by leading
11 uniform flow of tracheae is subsequently passed through at the position where micropore flows to air guide filter plate 13, into gas port 12 so that inlet air flow is more
Add the inside of uniform guiding chromatograph 6, and imported by the top inside chromatograph 6, is flowed downward so that inlet air flow has
Trend, and hot-air present in the inside of chromatograph 6 has under the action of pressure and floats downward effect, thus realize inlet air flow with
Convection current is formed between 6 hot inside air of chromatograph, the heat effectively improved between air-flow changes effect, improves device drop to reach
The purpose of temp effect, and the air-flow after heat is changed is flowed under the trend moved downward to the outlet chamber of splitter cavity 8, and by going out
Air cavity flows to the venthole in temperature control valve 10, is finally discharged by escape pipe 9, so as to form the recycle stream of 6 internal gas of chromatograph
It is logical, air-cooled operation of the device to chromatograph 6 is completed, and with the reduction of 6 internal temperature of chromatograph, the temperature of 16 one end of temperature control column
Degree is also with reduction, so that the gas inside temperature control column 16 be made to generate contraction, air pressure reduces gas in a contracted state, thus
Piston 22 is driven to generate movement, piston 22 drives piston rod 20 mobile again, so that piston rod 20 is gradually to the inside of temperature control column 16
Recycling, the connecting rod 18 of heeling condition then gradually switchs to horizontality under the movement of piston rod 20 at this time, and connects in the process
Bar 18 can be mobile with movable valve plug 17 by connected set 19, so that spool 17 is mobile to the air inlet of temperature control valve 10, to realize temperature control
The current limitation effect of valve 10 reduces the air inflow of the device, slows down 6 cooling rate of chromatograph to reach
Purpose, avoid the occurrence of the too fast phenomenon of cooling rate, and frequency conversion refrigeration machine 1 can also be reduced automatically under the action of current limliting it is defeated
Out, to make the device that there is certain energy-saving effect.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of air cooling equipment for gas chromatograph, including frequency conversion refrigeration machine (1) and air-cooled shell (3), the frequency conversion system
It is connected between cold (1) and air-cooled shell (3) air inlet pipe (2), and is located at air inlet pipe (2) side on air-cooled shell (3) outer wall
Position be equipped with escape pipe (9), the inside of the air-cooled shell (3) slidably connects chromatograph by installing guide rail (7)
(6), the frequency conversion refrigeration machine (1) and chromatograph (6) are electrically connected with external power supply, it is characterised in that: the air-cooled shell
(3) it is internally located at the position of chromatograph (6) side and is welded with first partition (4) and second partition (5), the second partition
(5) between first partition (4) and chromatograph (6), and splitter cavity is formed between first partition (4) and second partition (5)
(8), the inside of the splitter cavity (8) is equipped with temperature control column (16), is welded with sealing on the two sides outer wall of the temperature control column (16)
Splitter cavity (8) is separated to form inlet chamber and outlet chamber by side plate (14), the temperature control column (16) and sealing side plate (14), and described the
It is connected between two partitions (5) and chromatograph (6) gas-guide tube (11), and offers gas port on the side outer wall of chromatograph (6)
(12), the gas-guide tube (11) is connected together with gas port (12).
2. a kind of air cooling equipment for gas chromatograph according to claim 1, it is characterised in that: the first partition
(4) it is welded with temperature control valve (10) on the side outer wall far from splitter cavity (8), the inside of the temperature control valve (10) is equipped with spool
(17), and temperature control valve (10) is internally located at the position at spool (17) both ends and offers air inlet and venthole, the valve respectively
It is sheathed on core (17) connected set (19), the inside of the temperature control column (16) is equipped with piston (22), the side of the piston (22)
It being welded on outer wall piston rod (20), the piston rod (20) is located at the inside of temperature control valve (10) far from the one end of piston (22),
And connecting rod (18) are rotatably connected to by shaft between one end and connected set (19) of piston rod (20).
3. a kind of air cooling equipment for gas chromatograph according to claim 1, it is characterised in that: the gas-guide tube
(11) and there are three the total settings of gas port (12), and three gas-guide tubes (11) and gas port (12) correspond, the chromatograph
(6) it is internally located at the position of gas port (12) side and is provided with air guide filter plate (13), the gas port (12) and air guide filter plate
(13) several micropores are connected between.
4. a kind of air cooling equipment for gas chromatograph according to claim 1, it is characterised in that: the second partition
(5) middle position is embedded with sealing shroud (15), and the sealing shroud (15) is sheathed on the outer wall of temperature control column (16), and is sealed
Cover the side that (15) are located at sealing side plate (14).
5. a kind of air cooling equipment for gas chromatograph according to claim 1, it is characterised in that: the temperature control column
(16) one end far from temperature control valve (10) is located at the position where chromatograph (6), and one end of temperature control column (16) is embedded with and leads
Backing (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822016534.XU CN209148620U (en) | 2018-11-28 | 2018-11-28 | A kind of air cooling equipment for gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822016534.XU CN209148620U (en) | 2018-11-28 | 2018-11-28 | A kind of air cooling equipment for gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148620U true CN209148620U (en) | 2019-07-23 |
Family
ID=67288868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822016534.XU Expired - Fee Related CN209148620U (en) | 2018-11-28 | 2018-11-28 | A kind of air cooling equipment for gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115852342A (en) * | 2023-03-02 | 2023-03-28 | 山西方维晟智能科技有限公司 | Diamond vapor deposition device |
| CN116609199A (en) * | 2023-07-11 | 2023-08-18 | 济南荣耀合创电力科技有限公司 | Withstand voltage test device for power cable |
-
2018
- 2018-11-28 CN CN201822016534.XU patent/CN209148620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115852342A (en) * | 2023-03-02 | 2023-03-28 | 山西方维晟智能科技有限公司 | Diamond vapor deposition device |
| CN116609199A (en) * | 2023-07-11 | 2023-08-18 | 济南荣耀合创电力科技有限公司 | Withstand voltage test device for power cable |
| CN116609199B (en) * | 2023-07-11 | 2024-04-09 | 济南荣耀合创电力科技有限公司 | Withstand voltage test device for power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20211128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |