CN216142876U - Automatic exhaust device of high-pressure pump - Google Patents
Automatic exhaust device of high-pressure pump Download PDFInfo
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- CN216142876U CN216142876U CN202121737029.XU CN202121737029U CN216142876U CN 216142876 U CN216142876 U CN 216142876U CN 202121737029 U CN202121737029 U CN 202121737029U CN 216142876 U CN216142876 U CN 216142876U
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- negative pressure
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Abstract
The utility model relates to the technical field of medical instruments, and provides an automatic exhaust device of a high-pressure pump, which comprises a liquid inlet pipeline and a negative pressure chamber, and is characterized in that: the liquid inlet pipe's one end extends to in the negative pressure chamber, and liquid inlet pipe's the end that extends is connected with three way connection, and three way connection's one end is connected with ventilative membrane pipe, and the one end of ventilative membrane pipe is connected with the high-pressure pump, and three way connection's the other end still is connected with communicating pipe, and communicating pipe extends the negative pressure chamber and is connected with three way solenoid valve, and three way solenoid valve's one end is connected with the plunger pump, the lateral wall intercommunication of negative pressure chamber has the diaphragm pump, and the utility model has overcome the not enough of prior art, reasonable in design, compact structure, through the negative pressure chamber that sets up and spiral winding ventilative membrane pipe, can discharge the reagent negative pressure that contains gas, improves the accuracy of analysis result, through three way solenoid valve and the plunger pump that set up, can take the air in the liquid inlet pipe out, improves work efficiency.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an automatic exhaust device of a high-pressure pump.
Background
In a high-pressure liquid chromatography instrument, a high-pressure pump is required to push a reagent and a sample to enter a chromatographic column;
when gas is mixed into a liquid inlet pipeline of the high-pressure pump, the chromatogram base line is abnormal, so that the analysis result is influenced;
when the reagent is used up to cause the hollow liquid in the pipeline, even if the reagent barrel is replaced, the high-pressure pump cannot suck the liquid due to the existence of large-section gas in the pipeline and needs to be stopped for exhausting, and therefore, the high-pressure pump automatic exhaust device is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the automatic exhaust device of the high-pressure pump, which overcomes the defects of the prior art, has reasonable design and compact structure, can ensure that bubbles at the inlet of the three-way joint to the high-pressure pump are separated out by the air-permeable membrane tube in a negative-pressure environment through the arranged negative pressure chamber, and can not cause the abnormal chromatogram baseline, thereby improving the accuracy of an analysis result.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a high-pressure pump self-bleeding device, includes inlet channel and negative pressure chamber, its characterized in that: one end of the liquid inlet pipeline extends into the negative pressure chamber, the extending end of the liquid inlet pipeline is connected with a three-way joint, one end of the three-way joint is connected with a breathable membrane pipe, one end of the breathable membrane pipe is connected with a high-pressure pump, the other end of the three-way joint is also connected with a communicating pipe, the communicating pipe extends out of the negative pressure chamber and is connected with a three-way electromagnetic valve, one end of the three-way electromagnetic valve is connected with a plunger pump, and the lateral wall of the negative pressure chamber is communicated with a diaphragm pump.
Preferably, the high-pressure pump is connected with a liquid outlet pipeline, and the liquid outlet pipeline extends to the outer side of the negative pressure chamber.
Preferably, the pipe of the breathable film pipe is in a spiral winding structure.
Preferably, the other end of the three-way electromagnetic valve is also connected with a discharge pipeline.
Preferably, a negative pressure sensor is connected to a side wall of the negative pressure chamber.
(III) advantageous effects
The embodiment of the utility model provides an automatic exhaust device of a high-pressure pump. The method has the following beneficial effects:
1. through the arranged negative pressure chamber, bubbles at the inlet of the three-way joint and the high-pressure pump are separated out by the air permeable membrane tube under the negative pressure environment, so that the chromatogram base line is not abnormal, and the accuracy of the analysis result is improved.
2. Through the three-way solenoid valve and the plunger pump that set up, when reagent used up, the plunger pump can follow three way connection department a large amount of drawing liquid, drives gas and reagent in inlet fluid pipeline to the three-way solenoid valve and discharges from getting rid of the pipeline, finally reaches all gaseous effects in the discharge line, improves work efficiency.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a liquid inlet pipeline; 2. a three-way joint; 3. a liquid outlet pipeline; 4. a high pressure pump; 5. a gas-permeable membrane tube; 6. a three-way electromagnetic valve; 7. a negative pressure chamber; 8. a diaphragm pump; 9. a negative pressure sensor; 10. a plunger pump; 11. and (4) a discharge pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached figure 1, the high-pressure pump automatic exhaust device comprises a liquid inlet pipeline 1 and a negative pressure chamber 7, one end of the liquid inlet pipeline 1 extends into the negative pressure chamber 7, the extending end of the liquid inlet pipeline 1 is connected with a three-way joint 2, the three-way joint can carry out shunt treatment on a reagent entering the liquid inlet pipeline 1, one end of the three-way joint 2 is connected with a breathable membrane pipe 5, the breathable membrane pipe 5 can form suction on the outer surface of the breathable membrane pipe 5 under the action of the negative pressure chamber 7, the breathable membrane pipe 5 is convenient for separating out gas, one end of the breathable membrane pipe 5 is connected with a high-pressure pump 4, a pipeline between the three-way joint 2 and the high-pressure pump 4 is made of breathable membranes, the reagent flows into the three-way joint 2 from the liquid inlet pipeline 1, enters the breathable membrane pipe 5 and then enters the liquid inlet pipeline of the high-pressure pump 4, the breathable membrane pipe 5 can separate out gas contained in the reagent, and the other end of the three-way joint 2 is also connected with a communicating pipe, the communicating pipe extends out negative pressure chamber 7 and is connected with three solenoid valve 6, three solenoid valve 6 can control opening and closing of each pipeline interface, thereby control the flow direction of reagent, the one end of three solenoid valve 6 is connected with plunger pump 10, when reagent is used up, gaseous can be inhaled in the inlet conduit 1, plunger pump 10 is from three way connection 2 department large capacity drawing liquid, can inhale three solenoid valve 6 departments with the air of inhaling in the inlet conduit 1 and reagent in the lump, and discharge from three solenoid valve 6's discharge tube 11, three solenoid valve 6 closes the kneck of discharge tube 11 this moment, thereby form inclosed communicating pipe, reach the purpose of automatic exhaust gas, the lateral wall intercommunication of negative pressure chamber 7 has diaphragm pump 8, diaphragm pump 8 works, it exhausts from negative pressure chamber 7, thereby keep its interior negative pressure.
In this embodiment, the liquid outlet pipe 3 is connected to the high-pressure pump 4, the liquid outlet pipe 3 extends to the outside of the negative pressure chamber 7, and the reagent pumped by the high-pressure pump 4 becomes the high-pressure reagent and flows out to the designated position from the liquid outlet pipe 3 of the high-pressure pump 4.
In this embodiment, the pipeline of the permeable membrane tube 5 is a spiral winding structure, and the spiral winding structure can enable the permeable membrane tube 5 to better separate out gas.
In this embodiment, the other end of the three-way electromagnetic valve 6 is further connected to a discharge pipe 11, and the large-capacity liquid from the three-way joint 2 can be discharged from the discharge pipe 11.
In this embodiment, the side wall of the negative pressure chamber 7 is connected with a negative pressure sensor 9, and the pressure sensor 9 can detect the pressure in the negative pressure chamber 7 in real time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a high-pressure pump self-bleeding device, includes inlet channel (1) and negative pressure chamber (7), its characterized in that: one end of the liquid inlet pipeline (1) extends into the negative pressure chamber (7), and the extending end of the liquid inlet pipeline (1) is connected with the tee joint (2);
one end of the three-way joint (2) is connected with a breathable film tube (5), and one end of the breathable film tube (5) is connected with a high-pressure pump (4);
the other end of the three-way joint (2) is also connected with a communicating pipe, the communicating pipe extends out of the negative pressure chamber (7) and is connected with a three-way electromagnetic valve (6), and one end of the three-way electromagnetic valve (6) is connected with a plunger pump (10);
the side wall of the negative pressure chamber (7) is communicated with a diaphragm pump (8).
2. The automatic exhaust device for a high-pressure pump according to claim 1, wherein: the high-pressure pump (4) is connected with a liquid outlet pipeline (3), and the liquid outlet pipeline (3) extends to the outer side of the negative pressure chamber (7).
3. The automatic exhaust device for a high-pressure pump according to claim 1, wherein: the pipeline of the breathable film pipe (5) is of a spiral winding structure.
4. The automatic exhaust device for a high-pressure pump according to claim 1, wherein: the other end of the three-way electromagnetic valve (6) is also connected with a discharge pipeline (11).
5. The automatic exhaust device for a high-pressure pump according to claim 1, wherein: and the side wall of the negative pressure chamber (7) is connected with a negative pressure sensor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121737029.XU CN216142876U (en) | 2021-07-28 | 2021-07-28 | Automatic exhaust device of high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121737029.XU CN216142876U (en) | 2021-07-28 | 2021-07-28 | Automatic exhaust device of high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216142876U true CN216142876U (en) | 2022-03-29 |
Family
ID=80803093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121737029.XU Active CN216142876U (en) | 2021-07-28 | 2021-07-28 | Automatic exhaust device of high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216142876U (en) |
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2021
- 2021-07-28 CN CN202121737029.XU patent/CN216142876U/en active Active
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