CN207816908U - Liquid chromatograph - Google Patents
Liquid chromatograph Download PDFInfo
- Publication number
- CN207816908U CN207816908U CN201721862627.3U CN201721862627U CN207816908U CN 207816908 U CN207816908 U CN 207816908U CN 201721862627 U CN201721862627 U CN 201721862627U CN 207816908 U CN207816908 U CN 207816908U
- Authority
- CN
- China
- Prior art keywords
- liquid chromatograph
- pump
- controller
- tapping valve
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of liquid chromatographs, it includes the first pump, second pump, tapping valve and pressure sensor, first pump is equipped with the first import and first outlet, second pump is equipped with the second import and second outlet, the outside wall surface of the tapping valve is equipped with inlet, outlet and leakage fluid dram, the first outlet is connected to second import and is connected with second pump, the second outlet is connected to the inlet and is connected with the tapping valve, the pressure sensor is connected to the tapping valve and for detecting the pressure in the tapping valve.The liquid chromatograph of the utility model conveys liquid by double pump crossfire, higher accuracy and susceptibility can be provided for liquid chromatograph and substantially increases measurement accuracy to obtain stable conveying.Meanwhile the pressure of liquid is detected by pressure sensor, it effectively prevents influencing measurement accuracy because of fluid pulse.
Description
Technical field
The utility model is related to a kind of liquid chromatographs.
Background technology
Currently, the application of liquid chromatograph is more and more extensive.Liquid chromatograph by liquid storage device, pump, injector, chromatographic column,
A few part compositions such as detector, recorder.Mobile phase in liquid storage device is pumped the system of squeezing into, and sample solution is through injector into becoming a mandarin
Dynamic phase, is loaded by mobile phase in chromatographic column, since each component in sample solution has different distribution coefficients in two-phase,
When doing relative motion in two-phase, by the assigning process of repeated multiple times absorption-desorption, each component generated in movement speed compared with
Big difference is separated into single component and is flowed out out of column successively, and when passing through detector, sample concentration is converted into electric signal biography
It is sent to recorder, data are printed in the form of collection of illustrative plates.The liquid in liquid storage device is driven into injector by pumping, but
The fluid pulse that will produce when liquid is conveyed, to cause the measurement accuracy of liquid chromatograph poor.
Utility model content
The technical problems to be solved in the utility model is to overcome existing liquid chromatograph that can be produced when conveying liquid
Raw fluid pulse causes the defect of the measurement accuracy difference of liquid chromatograph, provides a kind of liquid chromatograph.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of liquid chromatograph, feature are comprising the first pump, the second pump, tapping valve and pressure sensor, it is described
First pump is equipped with the first import and first outlet, and second pump is equipped with the second import and second outlet, the tapping valve
Outside wall surface be equipped with inlet, outlet and leakage fluid dram, the first outlet is connected to second import and with described the
Two pumps are connected, and the second outlet is connected to the inlet and is connected with the tapping valve, and the pressure sensor connects
It is connected to the tapping valve and for detecting the pressure in the tapping valve.
In the present solution, form using the above structure, conveys by the first pump and the second series connection of pumps and jointly liquid, in pole
It just can reach high accuracy in the small period, measurement efficiency is high；Meanwhile it can effectively be reduced by double pump crossfire conveying liquid
The fluid pulse generated when conveying liquid can provide higher accuracy and susceptibility, to obtain for liquid chromatograph
Stablize conveying, substantially increases the measurement accuracy of liquid chromatograph.
In addition, the pressure of pressure sensor detection liquid, is understood by detecting the pressure of liquid inside liquid chromatograph
The case where fluid pulse, and measurement data is steadily recorded afterwards in fluid pulse, it effectively prevents influencing to measure because of fluid pulse
Precision substantially increases the measurement accuracy of liquid chromatograph.
Preferably, the liquid chromatograph further includes controller, the controller is electrically connected to the pressure sensor.
In the present solution, form, controller are used to receive the detection signal of pressure sensor and realize using the above structure
Liquid chromatograph automation control is realized in control, convenient for management and operation.
Preferably, the liquid chromatograph further includes alert mechanism, the input terminal of the controller is electrically connected to the pressure
The output end of force snesor, the controller is electrically connected to the alert mechanism.
In the present solution, form, alert mechanism have reminding effect using the above structure, by alert mechanism convenient for management
With the fluid pressure in control liquid chromatograph so that maintain in liquid chromatograph in normal use pressure limit, carry significantly
The high safety in utilization of liquid chromatograph.
Preferably, the alert mechanism is warning lamp or alarm.
In the present solution, form using the above structure, warning lamp or alarm can be conveyed to staff it is corresponding
Information, and it is simple in structure, be easily installed setting.
Preferably, the liquid chromatograph further includes babinet, control area and open area are equipped in the babinet, it is described
Controller is located in the control area, and the front side of the control area is equipped with control flow, and the control flow is electrically connected to described
Controller, first pump, second pump and the tapping valve are respectively positioned on the open area, before the open area
It equipped with opening, is hinged with and renovates on the front side of the open area, described renovate can open or be completely covered completely described open
Mouthful.
In the present solution, form using the above structure, by control flow convenient for liquid chromatograph control management.
In addition, installing, safeguarding and replacing convenient for the first pump, the second pump and tapping valve to box house by being open, together
When, it is open by renovating to be convenient for opening and cover, improves the safety of liquid chromatograph.
Preferably, the front side of the control area is equipped with display screen, the display screen is electrically connected to the controller.
In the present solution, form, display screen can show information and work inside liquid chromatograph using the above structure
The operation information of personnel is convenient for management and control to further realize.
Preferably, the liquid chromatograph further includes safety device, the safety device is electrically connected to the controller, and
The safety device is removably attachable to the rear side of the babinet.
In the present solution, form, safety device can cut off electric current, protection liquid chromatograph inside electricity using the above structure
The safe operation on road substantially increases the safety of liquid chromatograph.
In addition, safety device by the way of being detachably connected, convenient for maintenance and is replaced.
Preferably, the safety device includes fixed seat and fuse, the fixed seat include head, threaded portion and
Interconnecting piece, the both ends of the threaded portion are connected to the one end on the head and the interconnecting piece, the interconnecting piece it is another
End is equipped with groove, and the fuse pressure is set in the groove, and the rear side of the babinet is equipped with threaded hole, the threaded portion connection
In the threaded hole, the head is equipped with bar shaped opening groove.
In the present solution, form using the above structure, is mounted on convenient for fuse in fixed seat by groove；Meanwhile it is logical
Threaded portion is crossed to be mounted on babinet convenient for safety device.
Further, it is possible to use the hard object such as coin, pocket knife is inserted into bar shaped opening groove so that bar shaped can be rotated and opened
Slot is opened, to realize that the handling of safety device, handling are very convenient.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with
Good example.
The positive effect of the utility model is：
The liquid chromatograph of the utility model conveys liquid by double pump crossfire, can provide higher for liquid chromatograph
Accuracy and susceptibility substantially increase measurement accuracy to obtain stable conveying.Meanwhile it being detected by pressure sensor
The pressure of liquid effectively prevents influencing measurement accuracy because of fluid pulse.
Description of the drawings
Fig. 1 is the structural schematic diagram of the liquid chromatograph of the utility model embodiment.
Fig. 2 is another structural schematic diagram of the liquid chromatograph of the utility model embodiment.
Fig. 3 is the structural schematic diagram of the safety device of the liquid chromatograph of the utility model embodiment.
Fig. 4 is the decomposition texture schematic diagram of the safety device of the liquid chromatograph of the utility model embodiment.
Reference sign：
First pump 1, the first import 11, first outlet 12
Second pump 2, the second import 21, second outlet 22
Tapping valve 3, inlet 31, outlet 32
Alert mechanism 4
Babinet 5, control area 51, control flow 511, display screen 512
Open area 52, opening 521, renovates 522
Safety device 6, fixed seat 61, head 611, threaded portion 612, interconnecting piece 613
Bar shaped opening groove 614, fuse 62
Specific implementation mode
Below by embodiment mode and completely illustrate the utility model in conjunction with attached drawing to become apparent from, but not therefore
Among the scope of embodiments that the utility model is limited in.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the liquid chromatograph of the utility model embodiment includes first the 1, second pump of pump
2, tapping valve 3 and pressure sensor (not shown), the first pump 1 are equipped with the first import 11 and first outlet 12, the second pump 2
It is equipped with the second import 21 and second outlet 22, the outside wall surface of tapping valve 3 is equipped with inlet 31, outlet 32 and leakage fluid dram,
First outlet 12 is connected to the second import 21 and is connected with the second pump 2, and second outlet 22 is connected to inlet 31 and and drain
Valve 3 is connected.It is serially connected and conveys jointly liquid, the first pump 1 and second between first the 1, second pump 2 of pump and output mechanism 3
Pump 2 can increase fluid pressure, and high accuracy is just can reach within the minimum period, and measurement efficiency is high.Meanwhile passing through first
Pump 1 and the second pump 2 can effectively reduce the fluid pulse generated when conveying liquid when conveying liquid, be capable of providing higher
Accuracy and susceptibility substantially increase the measurement accuracy of liquid chromatograph so that liquid chromatograph, which obtains, stablizes conveying.
Pressure sensor is connected to tapping valve 3 and for detecting the pressure in tapping valve 3.Pressure sensor detects liquid
Pressure understands the case where liquid chromatograph internal liquid is pulsed by detecting the pressure of liquid, and after fluid pulse is steady
The measurement data for recording liquid chromatograph, to effectively prevent influencing the measurement accuracy of liquid chromatograph because of fluid pulse,
Substantially increase the measurement accuracy of liquid chromatograph.
Liquid chromatograph can also include controller, and controller is electrically connected to pressure sensor.Pressure sensor is for examining
The pressure of liquid in tapping valve 3 is surveyed, controller is used to receive the real-time pressure of pressure sensor detected and realizes control, real
Existing liquid chromatograph automation control, convenient for management and operation.
Liquid chromatograph can also include alert mechanism 4, and the input terminal of controller is electrically connected to pressure sensor, controller
Output end be electrically connected to alert mechanism 4.Controller is used to receive the real-time pressure of pressure sensor detected and will be real-time
Pressure is compared with its internal setting value, to control the switch of alert mechanism 4.When the work pressure in liquid chromatograph
When power is not in the range of normal use pressure, controller is opened alert mechanism 4 is controlled；When the work pressure in liquid chromatograph
When power is in the range of normal use pressure, controller is closed alert mechanism 4 is controlled.Alert mechanism 4 has reminding effect, leads to
Alert mechanism 4 is crossed convenient for managing and controlling the fluid pressure in liquid chromatograph so that being maintained in liquid chromatograph normally makes
With the safety in utilization in pressure limit, substantially increasing liquid chromatograph.
Alert mechanism 4 can be warning lamp or alarm.Warning lamp or alarm can convey phase to staff
Corresponding information, and it is simple in structure, it is easily installed setting.
Liquid chromatograph can also include babinet 5, be equipped with control area 51 in babinet 5, controller is located at control area 51
Interior, the front side of control area 51 is equipped with control flow 511, and control flow 511 is electrically connected to controller.Control flow 511 is arranged in babinet 5
Front side, be convenient for staff's operation and control, and finger can be had received with output instruction signal, controller by control flow 511
Enable signal that will carry out control operation to the relevant device in liquid chromatograph later, convenient for liquid chromatograph control management.
Open area 52 is additionally provided in babinet 5, first the 1, second pump 2 of pump and tapping valve 3 are respectively positioned on open area 52, are open
Opening 521 is equipped with before region 52.521 positions that are open are arranged in the front side of babinet 5, and be open 521 and control flow 511 distinguish
Both ends positioned at the front side of babinet 5, by opening 521 convenient for first the 1, second pump 2 of pump and the peace of tapping valve 3 inside babinet 5
Dress is safeguarded and is replaced, and is convenient for installing the other equipment in babinet 5, safeguard and replacing.It can be on the front side of open area 52
It is hinged with and renovates 522, opening 521 can be opened or be completely covered completely by renovating 522.Renovate 522 be mounted on babinet 5 before
Side uses convenient for staff, and by renovating 522 convenient for opening and covering opening 521, effectively blocked external dust,
The impurity such as moisture enter in babinet 5, improve the safety of liquid chromatograph.
The front side of control area 51 can be equipped with display screen 512, and display screen 512 is electrically connected to controller.Display screen 512 is set
The information for facilitating staff to watch on display screen 512 in the front side of babinet 5 is set, and display screen 512 can show liquid chromatogram
The operation information of information and staff inside instrument, enabling the internal control situation of liquid chromatograph is well understood,
To further realize liquid chromatograph convenient for management and control.
In order to achieve the effect that improve liquid chromatograph safety, liquid chromatograph can also include safety device 6, insurance
Device 6 is electrically connected to controller, and safety device 6 is removably attachable to the rear side of babinet 5.Safety device 6 can cut off electricity
Stream protects the safe operation of liquid chromatograph internal circuit, substantially increases the safety of liquid chromatograph.Meanwhile insuring dress
6 are set by the way of being detachably connected, convenient for safety device 6 is safeguarded and replaced.
Safety device 6 may include having fixed seat 61 and fuse 62, and fixed seat 61 includes head 611, threaded portion 612
With interconnecting piece 613, the both ends of threaded portion 612 are connected to the one end on head 611 and interconnecting piece 613, interconnecting piece 613 it is another
End is equipped with groove, and the pressure of fuse 62 is set in groove.It is mounted in fixed seat 61 convenient for fuse 62 by groove.
The rear side of babinet 5 can be equipped with threaded hole, and threaded portion 612 is connected to threaded hole.Between threaded portion 612 and threaded hole
Using thread connecting mode, dismounting is very convenient, is mounted on babinet 5 convenient for safety device 6.Item can be equipped on head 611
Shape opening groove 614 can use the hard objects such as coin, pocket knife to be inserted into bar shaped opening groove 614 so that can rotate bar shaped
Opening groove 614, to realize that the handling of safety device 6, handling are very convenient.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (8)
1. a kind of liquid chromatograph, which is characterized in that it includes the first pump, the second pump, tapping valve and pressure sensor, and described the
One pump is equipped with the first import and first outlet, and second pump is equipped with the second import and second outlet, the tapping valve
Outside wall surface is equipped with inlet, outlet and leakage fluid dram, and the first outlet is connected to second import and with described second
Pump is connected, and the second outlet is connected to the inlet and is connected with the tapping valve, the pressure sensor connection
In the tapping valve and for detecting the pressure in the tapping valve.
2. liquid chromatograph as described in claim 1, which is characterized in that the liquid chromatograph further includes controller, described
Controller is electrically connected to the pressure sensor.
3. liquid chromatograph as claimed in claim 2, which is characterized in that the liquid chromatograph further includes alert mechanism, institute
The input terminal for stating controller is electrically connected to the pressure sensor, and the output end of the controller is electrically connected to the prompting machine
Structure.
4. liquid chromatograph as claimed in claim 3, which is characterized in that the alert mechanism is warning lamp or alarm.
5. liquid chromatograph as claimed in claim 2, which is characterized in that the liquid chromatograph further includes babinet, the case
It is equipped with control area and open area in vivo, the controller is located in the control area, is set on front side of the control area
There are control flow, the control flow to be electrically connected to the controller, first pump, second pump and the tapping valve are respectively positioned on
The open area is equipped with opening before the open area, is hinged with and renovates on the front side of the open area, described to turn over
Lid can open or be completely covered completely the opening.
6. liquid chromatograph as claimed in claim 5, which is characterized in that the front side of the control area is equipped with display screen, institute
It states display screen and is electrically connected to the controller.
7. liquid chromatograph as claimed in claim 5, which is characterized in that the liquid chromatograph further includes safety device, institute
It states safety device and is electrically connected to the controller, and the safety device is removably attachable to the rear side of the babinet.
8. liquid chromatograph as claimed in claim 7, which is characterized in that the safety device includes fixed seat and insurance
Silk, the fixed seat includes head, threaded portion and interconnecting piece, and the both ends of the threaded portion are connected to the head and institute
One end of interconnecting piece is stated, the other end of the interconnecting piece is equipped with groove, and the fuse pressure is set in the groove, the babinet
Rear side be equipped with threaded hole, the threaded portion is connected to the threaded hole, and the head is equipped with bar shaped opening groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862627.3U CN207816908U (en) | 2017-12-27 | 2017-12-27 | Liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862627.3U CN207816908U (en) | 2017-12-27 | 2017-12-27 | Liquid chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816908U true CN207816908U (en) | 2018-09-04 |
Family
ID=63331076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721862627.3U Expired - Fee Related CN207816908U (en) | 2017-12-27 | 2017-12-27 | Liquid chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816908U (en) |
-
2017
- 2017-12-27 CN CN201721862627.3U patent/CN207816908U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018107406A1 (en) | Underwater data collection device and system | |
| CN206223766U (en) | A kind of Intelligent sewage water quality information integrating device | |
| CN100491980C (en) | Hand-held adenosine triphosphate fluorescent detecting instrument | |
| CN207816908U (en) | Liquid chromatograph | |
| CN104898032A (en) | Fault detection apparatus of distribution network switch cabinet | |
| CN203224436U (en) | Portable methane concentration detector | |
| CN203966548U (en) | Baby sound recognition device | |
| CN104990963A (en) | On-line water quality monitoring system | |
| CN104181085A (en) | Laser dust particle counter | |
| CN205262648U (en) | Distribution monitor terminal | |
| CN204156305U (en) | The low-voltage distribution cabinet of low-pressure line-outgoing banded cable load current checkout gear | |
| CN209372504U (en) | It is a kind of for measuring the instrument of oil content in compressed air system | |
| CN207036932U (en) | Single measuring point dual power supply two-way voltage monitor | |
| CN207424029U (en) | A kind of electric instrument | |
| CN204007984U (en) | Slight pressure measurement mechanism | |
| CN207008046U (en) | A kind of electric energy meter stealing diagnostic equipment | |
| CN202814450U (en) | A device for real-time monitoring of temperature and humidity of electronic power modules | |
| CN207318981U (en) | A kind of data acquisition control system based on instrument | |
| CN205229235U (en) | Waterproof type smart electric meter of low -power consumption | |
| CN206593713U (en) | A kind of anti-theft water meter device for being easy to observe | |
| CN201514435U (en) | Electric power parameter meter | |
| CN204008387U (en) | A kind of laser dust particle counter | |
| CN201142011Y (en) | Safety monitoring device of rotating machinery | |
| CN205749205U (en) | A kind of air quality detector | |
| CN205105341U (en) | High altitude equipment information processing system |
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: 20180904 Termination date: 20201227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |