CN207145158U - A kind of liquid chromatographic system high pressure pump - Google Patents
A kind of liquid chromatographic system high pressure pump Download PDFInfo
- Publication number
- CN207145158U CN207145158U CN201721037729.1U CN201721037729U CN207145158U CN 207145158 U CN207145158 U CN 207145158U CN 201721037729 U CN201721037729 U CN 201721037729U CN 207145158 U CN207145158 U CN 207145158U
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- pump
- plunger
- plunger pump
- cam
- high pressure
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Abstract
A kind of liquid chromatographic system high pressure pump is the utility model is related to, belongs to transfusion pump technical field, including left plunger pump, right plunger pump, motor and the cam being arranged between left plunger pump and right plunger pump, the center of cam and the output end of motor connect；The left plunger pump includes the left pump housing and left plunger rod, and both ends are respectively arranged with check valve A and lower check valve A in the left pump housing, and left plunger rod one end is slidably arranged in the left pump housing, and the left plunger rod other end is connected to the outer rim of cam；The right plunger pump includes the right pump housing and right plunger bar, and right plunger pump is consistent with the structure of left plunger pump, and the center symmetric setting of opposing cam, and the right plunger bar other end is connected to the outer rim of cam.The beneficial effects of the utility model are：Two plunger rods are alternately flexible, move back and forth, and have stable output flow, avoid producing pulse, it is not necessary to which practicality eliminates the damper of pulse, avoids the pressure consumption of damper.
Description
Technical field
Transfusion pump technical field is the utility model is related to, more particularly to a kind of liquid chromatographic system high pressure pump.
Background technology
Infusion pump in liquid chromatograph is chromatographic core component, and the performance of high-pressure pump directly affects the stabilization of analysis
Property, repeatability and precision.With the raising that efficient liquid phase chromatographic analysis popularization in actual applications and analysis require, to high pressure
The performance requirements such as the transfusion precision of liquid chromatography pump, pulsation also more and more higher.Most widely used at present is reciprocating pump, is led to
Motor driven eccentric wheel is crossed, plunger is moved reciprocatingly, so as to which liquid phase is transported in chromatograph, but plunger pump can produce arteries and veins
Punching can lose pressure, and the flow accuracy for exporting liquid phase is relatively low, it is necessary to damping unit eliminates pulse.
Utility model content
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of liquid phase color is provided
Spectra system high pressure pump.
The purpose of this utility model is achieved through the following technical solutions：A kind of high pressure infuser of liquid chromatographic system
Pump, there is entrance point and the port of export, it is characterised in that：Including left plunger pump, right plunger pump, motor and be arranged on left plunger pump with
Cam between right plunger pump, the center of cam and the output end of motor connect；The left plunger pump includes the left pump housing and left post
Stopper rod, both ends are respectively arranged with check valve A and lower check valve A in the left pump housing, and left plunger rod one end is slidably arranged in the left pump housing
Interior, the left plunger rod other end is connected to the outer rim of cam；The right plunger pump includes the right pump housing and right plunger bar, right plunger pump with
The structure of left plunger pump is consistent, and the center symmetric setting of opposing cam, and the right plunger bar other end is connected to the outer rim of cam；Institute
The one end for stating left plunger pump and right plunger pump is communicated by pipeline with entrance point, and the other end of left plunger pump and right plunger pump is equal
Communicated by pipeline with the port of export.
Preferably, the right plunger pump and left plunger pump is in the same size.
Preferably, left sealing ring is provided between the left plunger rod and the left pump housing, is set between right plunger bar and the right pump housing
It is equipped with right sealing ring.
Preferably, the entrance point is connected with filter.
Preferably, the port of export is connected with blender.
Preferably, it is provided with pressure gauge between the port of export and blender.
The beneficial effects of the utility model are：Left plunger pump is set with right plunger parallel connection of pumps, and motor driven cam rotation is convex
Plunger rod corresponding to short radius is taken turns to overhanging, the lower check valve of the plunger rod is opened inhalation flow phase, at the same time, cam
Another plunger rod corresponding to major radius end is pushed into, and makes check valve opening thereon, and mobile phase is delivered into the port of export, therefore,
Two plunger rods are alternately flexible, move back and forth, and have stable output flow, avoid producing pulse, it is not necessary to which practicality eliminates pulse
Damper, avoid the pressure consumption of damper.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：The left plunger pumps of 1-, 2- right plunger pumps, 3- entrance points, the 4- ports of export, 5- cams, 6- motors, the left pump housings of 7-,
The left plunger rod of check valve A, 10- under 8- upper check valve A, 9-, the left sealing rings of 11-, the right pump housings of 12-, under 13- upper check valve B, 14-
Check valve B, 15- right plunger bar, the right sealing rings of 16-, 17- filters, 18- blenders, 19- pressure gauges.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
As shown in figure 1, a kind of liquid chromatographic system high pressure pump, has entrance point and the port of export, it is characterised in that：
Including left plunger pump 1, right plunger pump 2, motor 6 and the cam being arranged between left plunger pump 1 and right plunger pump 2, in cam 5
The heart is connected with the output end of motor 6；The left plunger pump 1 includes the left pump housing 7 and left plunger rod 10, and both ends are distinguished in the left pump housing 7
Check valve A8 and lower check valve A9 are provided with, left one end of plunger rod 10 is slidably arranged in the left pump housing 7, and left plunger rod 10 is another
End is connected to the outer rim of cam 5, and the entrance point of left plunger pump 1 is connected to form runner with the port of export, matched with left plunger rod 10
Through hole is mutually perpendicular to runner；The right plunger pump 2 includes the right pump housing 12 and right plunger bar 15, right plunger pump 2 and left plunger pump 1
Structure it is consistent, and the center symmetric setting of opposing cam 5, the other end of right plunger bar 15 are connected to the outer rim of cam 5；The left side
One end of plunger pump 1 and right plunger pump 2 is communicated by pipeline with entrance point, and the other end of left plunger pump 1 and right plunger pump 2 is equal
Communicated by pipeline with the port of export.
Preferably, the right plunger pump 2 and left plunger pump 1 is in the same size.
Preferably, left sealing ring 11, right plunger bar 15 and the right pump housing are provided between the left plunger rod 10 and the left pump housing 7
Right sealing ring 16 is provided between 12.
Preferably, the entrance point 3 is connected with filter 17；The port of export 4 is connected with blender 18；The port of export 4 is with mixing
Pressure gauge 19 is provided between clutch 18.
Entrance point 3 is communicated with liquid phase groove, and the port of export 4 is connected with chromatograph, and during work, motor 6 revolves with moving cam 5
Turn, when the short radius end of cam 5 is corresponding with left plunger rod 10 so that left plunger rod 10 is to overhanging, lower check valve A9 openings, Zuo Zhu
Plug pump 1 sucks liquid phase from liquid phase groove, and at the same time, the major radius end of cam 5 is corresponding with right plunger bar 15 so that right plunger bar
15 are inwardly retracted, and upper check valve B13 is opened so that the liquid phase in right plunger pump 2 flows out to the port of export 4, and eventually enters into chromatogram
In instrument；When the major radius end of cam 5 is corresponding with left plunger rod 10 so that retracted in left plunger rod 10, upper check valve A8 is opened, and is made
The liquid phase obtained in left plunger pump 1 flows out to the port of export 4, and eventually enters into chromatograph, at the same time, the short radius end of cam 5
It is corresponding with right plunger bar 15 so that right plunger bar 15 is protruding, and lower check valve B14 is opened, and right plunger pump 2 is inhaled from liquid phase groove
Enter liquid phase；Motor 6 persistently rotates so that left plunger pump 1 is pumped into continuous liquid phase with the gap of right plunger pump 2 to the port of export 4, will not
Pulse is produced, pressure is detected by pressure gauge 19, and output pressure is adjusted by adjusting the rotating speed of motor 6.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, there can be various modifications and variations in the spirit and principles of the utility model, these are equivalent
Modification or replacement etc., are all contained within the scope of protection of the utility model.
Claims (6)
1. a kind of liquid chromatographic system high pressure pump, there is entrance point and the port of export, it is characterised in that：Including left plunger
Pump, right plunger pump, motor and the cam being arranged between left plunger pump and right plunger pump, the center of cam and the output end of motor
Connection；The left plunger pump includes the left pump housing and left plunger rod, and both ends are respectively arranged with check valve A and lower unidirectional in the left pump housing
Valve A, left plunger rod one end are slidably arranged in the left pump housing, and the left plunger rod other end is connected to the outer rim of cam；The right plunger
Pump includes the right pump housing and right plunger bar, and right plunger pump is consistent with the structure of left plunger pump, and the center symmetric setting of opposing cam,
The right plunger bar other end is connected to the outer rim of cam；One end of the left plunger pump and right plunger pump passes through pipeline and entrance point
Communicate, the other end of left plunger pump and right plunger pump is communicated by pipeline with the port of export.
2. liquid chromatographic system high pressure pump according to claim 1, it is characterised in that：The right plunger pump and a left side
Plunger pump it is in the same size.
3. liquid chromatographic system high pressure pump according to claim 1, it is characterised in that：The left plunger rod and a left side
Left sealing ring is provided between the pump housing, right sealing ring is provided between right plunger bar and the right pump housing.
4. liquid chromatographic system high pressure pump according to claim 1, it is characterised in that：The entrance point is connected with
Filter.
5. liquid chromatographic system high pressure pump according to claim 1, it is characterised in that：The port of export is connected with
Blender.
6. liquid chromatographic system high pressure pump according to claim 1, it is characterised in that：The port of export is with mixing
Pressure gauge is provided between device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037729.1U CN207145158U (en) | 2017-08-18 | 2017-08-18 | A kind of liquid chromatographic system high pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037729.1U CN207145158U (en) | 2017-08-18 | 2017-08-18 | A kind of liquid chromatographic system high pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145158U true CN207145158U (en) | 2018-03-27 |
Family
ID=61665700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721037729.1U Active CN207145158U (en) | 2017-08-18 | 2017-08-18 | A kind of liquid chromatographic system high pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145158U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591002A (en) * | 2018-04-24 | 2018-09-28 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure |
| CN108626089A (en) * | 2018-04-24 | 2018-10-09 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure of tape travel changing mechanism |
| CN108824508A (en) * | 2018-09-12 | 2018-11-16 | 贵州鑫瑞达科技有限公司 | A kind of load test system for concrete pipe base |
| CN108869228A (en) * | 2018-04-24 | 2018-11-23 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure improving transmission mechanism |
| CN111779669A (en) * | 2020-08-04 | 2020-10-16 | 赣州市闻誉科技有限公司 | Self-suction type water suction pump for low-lying |
| CN113018467A (en) * | 2021-03-01 | 2021-06-25 | 程紫嫣 | Sterilizing device for surgical instruments |
-
2017
- 2017-08-18 CN CN201721037729.1U patent/CN207145158U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591002A (en) * | 2018-04-24 | 2018-09-28 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure |
| CN108626089A (en) * | 2018-04-24 | 2018-10-09 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure of tape travel changing mechanism |
| CN108869228A (en) * | 2018-04-24 | 2018-11-23 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure improving transmission mechanism |
| CN108591002B (en) * | 2018-04-24 | 2019-12-03 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure |
| CN108626089B (en) * | 2018-04-24 | 2019-12-03 | 佛山安豪科技服务有限公司 | A kind of electric water pump and water gun structure of tape travel changing mechanism |
| CN108824508A (en) * | 2018-09-12 | 2018-11-16 | 贵州鑫瑞达科技有限公司 | A kind of load test system for concrete pipe base |
| CN111779669A (en) * | 2020-08-04 | 2020-10-16 | 赣州市闻誉科技有限公司 | Self-suction type water suction pump for low-lying |
| CN113018467A (en) * | 2021-03-01 | 2021-06-25 | 程紫嫣 | Sterilizing device for surgical instruments |
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