CN206845451U - A kind of CO2Delivery pump pump head refrigerating plant - Google Patents
A kind of CO2Delivery pump pump head refrigerating plant Download PDFInfo
- Publication number
- CN206845451U CN206845451U CN201720753609.5U CN201720753609U CN206845451U CN 206845451 U CN206845451 U CN 206845451U CN 201720753609 U CN201720753609 U CN 201720753609U CN 206845451 U CN206845451 U CN 206845451U
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- China
- Prior art keywords
- pump
- head
- refrigerating fluid
- fine copper
- temperature
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Abstract
The utility model discloses a kind of CO2Delivery pump pump head refrigerating plant, it is made up of plunger pump, temp probe, semiconductor chilling plate, fine copper water-cooling head, pressing plate, temperature controller, cold row, fan, refrigerating fluid water tank and refrigerating fluid circulating pump, the device can be effectively prevented from plunger pump pump head temperature to liquid CO2Influence, ensure conveying CO2Flow accuracy.
Description
Technical field
It the utility model is related to a kind of CO2Delivery pump pump head refrigerating plant, is mainly used in supercritical fluid chromatography system,
Belong to chromatographic field.
Background technology
Plunger pump is widely used in hydraulic system, it have flow it is accurate, it is easy to control, bear that pressure is high, knot
The advantages that structure is compact.In liquid chromatogram, liquid has Incoercibility, and plunger pump will not be because of temperature when conveying liquid
Height influences the precision of flow.In supercritical fluid chromatography, mobile phase uses liquid CO2, this allows for the control to temperature
It is particularly important.Pump head material is 316L stainless steels, and the temperature of normal condition lower pump head is equal to room temperature, especially at summer, once
Temperature is too high, liquid CO2Gaseous state can be changed into, due to the compressibility of gas, can be produced in the reciprocating motion of plungers pump plunger bar
Angry, liquid checker phenomenon, causes that plunger pump discharge is inaccurate, does not convey liquid CO even2。
The content of the invention
The purpose of this utility model is to provide a kind of CO2Delivery pump pump head refrigerating plant, to solve plunger pump pump head
Temperature is to conveying liquid CO2When produce CO2The problem of changing.
The technical scheme of the utility model patent is as follows：
A kind of CO2Delivery pump pump head refrigerating plant, by plunger pump 1, temp probe 2, semiconductor chilling plate 3, fine copper water cooling
First 4, pressing plate 5, temperature controller 6, cold row 7, fan 8, refrigerating fluid water tank 9 and refrigerating fluid circulating pump 10 form；The He of temp probe 2
Plunger pump 1 is connected by screw；Pressing plate 5 pushes down fine copper water-cooling head 4 and semiconductor chilling plate 3 by screw；The signal of temp probe 2
Connected by band shielding wire and temperature controller 6；Refrigerating fluid circulating pump 10, refrigerating fluid water tank 9, cold row 7 and fine copper water-cooling head 4
Between be attached by silica gel water pipe, be fixed with hose clamp；Cold row 7 and fan 8 are connected by screw.
The chill surface of semiconductor chilling plate 3 is bonded with the pump head of plunger pump 1, and cooling effect is played to pump head, and temp probe 2 is real
When monitor the pump head temperature of plunger pump 1, and by band shielded signal line transfer signals to temperature controller 6, temperature controller 6 is adjusted
Section sets the temperature in semiconductor refrigerating face by the size of current of semiconductor chilling plate 3, so as to change the temperature of the pump head of plunger pump 1
Degree.The heating surface of semiconductor chilling plate 3 is bonded with fine copper water-cooling head 4, and refrigerating fluid circulating pump 10 is by refrigerating fluid from refrigerating fluid water tank 9
Fine copper water-cooling head 4 is pumped into, brings the heat of the heating surface of semiconductor chilling plate 3 into cold row 7, is radiated, circulated by the blowing of fan 8
Back and forth.
The advantages of the utility model patent is：
Compared with current plunger pump：Firstly, since liquid CO2Requirement to temperature is higher, and the utility model can be with
Effectively plunger pump pump head temperature is avoided to liquid CO2Influence, ensure conveying CO2Flow accuracy；Second, fine copper water-cooling head
Heat abstractor good heat conductivity, heat radiation power is big, stable performance, and assembling is easy to maintenance；3rd, present apparatus small volume, Ke Yian
In narrow and small cabinet, noise is low, and use environment is comfortable；4th, it is accurate steady by temperature controller remote control pump head temperature
It is fixed.
Brief description of the drawings
1st, plunger pump
2nd, temp probe
3rd, semiconductor chilling plate
4th, fine copper water-cooling head
5th, pressing plate
6th, temperature controller
7th, cold row
8th, fan
9th, refrigerating fluid water tank
10th, refrigerating fluid circulating pump
A、CO2Import
B、CO2Outlet
C, refrigerating fluid import
D, refrigerating fluid exports
Fig. 1 is the structural representation that plunger pump 1 is connected with cold row 7, fan 8, refrigerating fluid water tank 9, refrigerating fluid circulating pump 10,
Wherein plunger pump 1 is front view
Fig. 2 is the structural representation that plunger pump 1 is connected with temperature controller 6, and wherein plunger pump 1 is left view.
Embodiment
The utility model is described in further detail with reference to accompanying drawing.
Temperature controller 6 is adjusted first, sets the temperature required for the pump head of plunger pump 1, changes the electricity of semiconductor chilling plate 3
Size is flowed, the pump head of plunger pump 1 is cooled to assigned temperature by chill surface；The heat transfer of the heating surface of semiconductor chilling plate 3 is to fine copper
Water-cooling head 4, refrigerating fluid enter fine copper water-cooling head 4 from import C, and the heat of fine copper water-cooling head 4 is taken away from outlet D mouths outflow, risen
Refrigerating fluid after temperature flow to cold row 7, and cold row 7 is blowed fan 8, reduces temperature of refrigerating fluid when by cold row 7, cooling
Refrigerating fluid afterwards flow to refrigerating fluid water tank 9, is extracted by refrigerating fluid circulating pump 10 and is pumped into fine copper water-cooling head 4, refrigerating fluid and fine copper water
There is the temperature difference in cold head 4, temperature is transmitted from high to low, is so moved in circles, and ensure the cooling of the chill surface of semiconductor chilling plate 3
Effect.
CO2Plunger pump is entered by import A, pumped out by exporting B, will not be because of pump head temperature during by pump head this section
Spend high and produce the transformation of state, it is ensured that pumping precision.
Claims (1)
- A kind of 1. CO2Delivery pump pump head refrigerating plant, it is characterised in that by plunger pump（1）, temp probe（2）, semiconductor chilling plate （3）, fine copper water-cooling head（4）, pressing plate（5）, temperature controller（6）, cold row（7）, fan（8）, refrigerating fluid water tank（9）And refrigerating fluid Circulating pump（10）Composition；Temp probe（2）And plunger pump（1）It is connected by screw；Pressing plate（5）Fine copper water cooling is pushed down by screw Head（4）And semiconductor chilling plate（3）；Temp probe（2）Signal passes through band shielding wire and temperature controller（6）Connection；Refrigeration Liquid circulating pump（10）, refrigerating fluid water tank（9）, cold row（7）With fine copper water-cooling head（4）Between be attached by silica gel water pipe, use Hose clamp is fixed；Cold row（7）And fan（8）It is connected by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753609.5U CN206845451U (en) | 2017-06-27 | 2017-06-27 | A kind of CO2Delivery pump pump head refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753609.5U CN206845451U (en) | 2017-06-27 | 2017-06-27 | A kind of CO2Delivery pump pump head refrigerating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845451U true CN206845451U (en) | 2018-01-05 |
Family
ID=60802546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720753609.5U Active CN206845451U (en) | 2017-06-27 | 2017-06-27 | A kind of CO2Delivery pump pump head refrigerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845451U (en) |
-
2017
- 2017-06-27 CN CN201720753609.5U patent/CN206845451U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 223005 No. 1-9, Jixian Road, Huai'an Economic Development Zone, Jiangsu Province Patentee after: Jiangsu Hanbang Technology Co.,Ltd. Address before: 223005 No. 1-9, Jixian Road, Huai'an Economic Development Zone, Jiangsu Province Patentee before: JIANGSU HANBON SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |