Water pressure type sample injector

Abstract

The utility model discloses a hydraulic pressure type sample injector, which relates to the field of sample injectors and comprises a water storage tank, a peristaltic pump is mounted at the bottom of the water storage tank, an electromagnetic valve is mounted on one side of the peristaltic pump, a sample loading tank is mounted on one side of the electromagnetic valve, and a six-way sample injection valve is mounted on the outer wall of the back of the sample loading tank. A quantitative pipe is installed on the outer wall of the top of the six-way sample injection valve, a quantitative ring is installed on one side of the quantitative pipe, a gas carrying port is formed in the side, close to the quantitative ring, of the outer wall of the quantitative pipe, an emptying port is formed in the side, away from the quantitative pipe, of the outer wall of the top of the six-way sample injection valve, and a flow meter is installed on one side of the emptying port; an analyzer is mounted on one side, close to the vent nozzle, of the outer wall of the top of the quantitative tube. According to the utility model, the sample injection efficiency and the practicability of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the field of sample injectors, in particular to a water pressure type sample injector. Background Art

[0002] The injector is a device in the chromatography system that can quantitatively deliver the analytical sample into the chromatographic column.

[0003] At present, some samples are collected without pressure, among which a large number of atmospheric cylinders are sampled by sample replacement. The samples in such sample bottles need to be transferred to analytical instruments for measurement, and substances that cannot react with sample components need to be injected into the sample bottles. The device can press the sample out by adding saturated salt water into the sample bottle and then enter the fixed chain for filling, and then complete the automatic filling, so that the sampling efficiency of the device is improved.

[0004] Some sample injectors on the market often use manual sampling, which easily causes unstable changes in the sample volume and volume of the device, thereby affecting the accuracy of the device and requiring staff to repeatedly perform sample analysis, which reduces the sampling efficiency of the device. Therefore, it is necessary to invent a hydraulic sample injector to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a hydraulic sample injector to solve the problem of low sample injection efficiency mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic sample injector, comprising a water storage tank, a peristaltic pump is installed at the bottom of the water storage tank, a solenoid valve is installed on one side of the peristaltic pump, a sample loading tank is installed on one side of the solenoid valve, a six-way sample injection valve is installed on the back outer wall of the sample loading tank, a quantitative tube is installed on the top outer wall of the six-way sample injection valve, a quantitative ring is installed on one side of the quantitative tube, a carrier gas port is installed on the side of the outer wall of the quantitative tube close to the quantitative ring, a vent is installed on the side of the top outer wall of the six-way sample injection valve away from the quantitative tube, a flow meter is installed on one side of the vent, and an analyzer is installed on the side of the top outer wall of the quantitative tube close to the vent.

[0007] Preferably, a support base is fixed to the bottom outer wall of the analyzer, and a storage box is inserted into the inner wall of the support base.

[0008] Preferably, a plurality of groups of heat dissipation holes are provided on the back outer wall of the analyzer, and the plurality of groups of heat dissipation holes are evenly distributed on the back outer wall of the analyzer.

[0009] Preferably, a stirring mechanism is installed on the top outer wall of the water storage tank.

[0010] Preferably, the outer wall of the water storage tank is provided with scale markings.

[0011] Preferably, two groups of hydraulic rods are fixed to the side outer wall of the sample loading tank, the two groups of hydraulic rods are symmetrically distributed on the side outer wall of the sample loading tank, and the top outer wall of the hydraulic rods is installed with a device top cover.

[0012] Preferably, a transparent window is installed on the top inner wall of the top cover of the equipment.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The peristaltic pump at the bottom of the water storage tank in the utility model can operate the brine therein through the connected solenoid valve and introduce it into the sample loading tank connected thereto. The brine in the sample loading tank can introduce the sample into the quantitative loop on the quantitative tube through the six-way injection valve. The carrier gas port on one side of the quantitative loop can operate to adsorb the external air and introduce the sample in the quantitative loop into the connected analyzer. The vent port on one side of the six-way injection valve can guide the excess air pressure in the analyzer out. The flow meter on one side controls the guided air pressure, so that the analyzer can automatically inject the sample in the quantitative loop through the carrier gas port and the vent port, thereby improving the injection efficiency of the device.

[0015] 2. The support base at the bottom of the analyzer in the utility model can fix and isolate the device on the ground. The tools needed for work can be placed in the storage box in the support base, so as to be convenient for the staff to use. The multiple groups of heat dissipation holes on the outer wall of the back of the analyzer can dissipate the heat generated by the electronic components and extend the service life of the device. The stirring mechanism on the top of the water storage tank is convenient for the staff to mix the brine, and the scale markings on the outer wall are convenient for the staff to understand the use of the brine. The operation of the hydraulic rod on the outer wall of the sample loading tank is convenient for the lifting and lowering of the top cover of the equipment, and the staff can observe the operation of the device through the transparent window, so that the practicality of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a hydraulic sample injector.

[0018] Figure 2 The utility model is a schematic diagram of a top view of the structure of a hydraulic sample injector.

[0019] Figure 3 The utility model is a schematic diagram of the structure of a hydraulic sample injector viewed from above.

[0020] Figure 4 The utility model is a schematic diagram of the side structure of a hydraulic sample injector.

[0021] In the figure: 1. Water storage tank; 2. Peristaltic pump; 3. Solenoid valve; 4. Sample loading tank; 5. Six-way injection valve; 6. Quantitative tube; 7. Quantitative ring; 8. Carrier gas port; 9. Vent port; 10. Flow meter; 11. Analyzer; 12. Support base; 13. Storage box; 14. Heat dissipation hole; 15. Stirring mechanism; 16. Scale mark; 17. Hydraulic rod; 18. Equipment top cover; 19. Transparent window. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. The utility model provides such Figure 1-4The hydraulic sample injector shown in the figure comprises a water storage tank 1, a peristaltic pump 2 is installed at the bottom of the water storage tank 1, a solenoid valve 3 is installed on one side of the peristaltic pump 2, and a sample loading tank 4 is installed on one side of the solenoid valve 3, wherein the user can introduce a certain amount of salt and pure water into the water storage tank 1 to stir and mix them into saturated brine, the peristaltic pump 2 connected to the bottom of the water storage tank 1 is running to absorb the internal brine, and the solenoid valve 3 can control the flow rate and flow rate of the brine exported by the peristaltic pump 2 to be introduced into the connected sample loading tank 4, so that the device is easy for the user to operate, a six-way injection valve 5 is installed on the back outer wall of the sample loading tank 4, and a quantitative tube 6 is installed on the top outer wall of the six-way injection valve 5, and one side of the quantitative tube 6 A quantitative ring 7 is installed on the side, a carrier gas port 8 is installed on the side of the outer wall of the quantitative tube 6 close to the quantitative ring 7, a vent port 9 is installed on the side of the top outer wall of the six-way injection valve 5 away from the quantitative tube 6, a flow meter 10 is installed on one side of the vent port 9, and an analyzer 11 is installed on the side of the top outer wall of the quantitative tube 6 close to the vent port 9, wherein the user can connect the sample gas bottle to the vertical injection port in the sample loading tank 4, connect the sample outlet pipe at the other end, extract liquid through the peristaltic pump 2 and inject liquid into the bottom of the sample bottle, the sample gas bottle is discharged into the quantitative ring 7 on the quantitative tube 6, and the sample is injected through the six-way injection valve 5. After the analyzer 11 is turned on, the injector automatically keeps in the sample filling state. Connect the sample bag filled with the sample to the injection port in the analyzer 11, close the analyzer 11, click the start on the touch screen, and then the injector opens the carrier gas port 8 to pressurize the analyzer 11, and then enters the state of waiting for the injection signal of the analyzer 11. After receiving the injection signal of the analyzer 11, the controller opens the vent port 9, and after 50 seconds (this time depends on the sample amount of the sample bag) of sample filling, closes the vent port 9, delays for 5 seconds (to make the pressure of the quantitative ring 7 consistent with the external pressure), the flow meter 10 on the outer wall of the vent port 9 can monitor the derived air pressure flow rate, start (rotate) the quantitative ring 7, and delay for 30 seconds (this time is set according to the residual situation of the sample in the quantitative ring 7) to blow the sample of the quantitative ring 7 into the analyzer 11 through the carrier gas port 8 for analysis and measurement. Then it returns to the sample filling state, completes the sample injection program, enters the standby state or performs the injection program of the next sample repeatability test according to the setting, so that the device can automatically complete the injection, so that the injection efficiency of the device is improved.

[0023] A support base 12 is fixed to the bottom outer wall of the analyzer 11, and a storage box 13 is inserted into the inner wall of the support base 12. The user can place the support base 12 at the bottom of the analyzer 11 on the ground, so that the analyzer 11 can be fixed and isolated on the ground through the support base 12, and the tools needed for the work can be placed in the storage box 13 inserted into the inner wall of the support base 12, so that the practicability of the device is improved.

[0024] The back outer wall of the analyzer 11 is provided with a plurality of heat dissipation holes 14, which are evenly distributed on the back outer wall of the analyzer 11. The user can open a plurality of heat dissipation holes 14 on the outer wall of the analyzer 11 so that the heat generated by the electronic components in the analyzer 11 after long-term operation can be discharged through the plurality of heat dissipation holes 14, thereby extending the service life of the device.

[0025] A stirring mechanism 15 is installed on the top outer wall of the water storage tank 1, wherein the stirring mechanism 15 includes a motor, a transmission rod and a plurality of stirring blades, so that the operation of the stirring mechanism 15 facilitates the fusion of the salt introduced into the water storage tank 1 with the water.

[0026] The outer wall of the water storage tank 1 is installed with scale marks 16, wherein the user can install the scale marks 16 on one side of the observation window on the outer wall of the water storage tank 1, so that the staff can understand the usage of the brine in the device through the scale marks 16.

[0027] Two groups of hydraulic rods 17 are fixed to the side outer wall of the sample loading tank 4, and the two groups of hydraulic rods 17 are symmetrically distributed on the side outer wall of the sample loading tank 4. A device top cover 18 is installed on the top outer wall of the hydraulic rods 17. When the hydraulic rods 17 fixed to the side outer wall of the sample loading tank 4 are operated, the device top cover 18 connected to the top thereof can be driven to rise and fall, so that the sample gas cylinder inside the sample loading tank 4 is convenient for the staff to install.

[0028] A transparent window 19 is installed on the top inner wall of the device top cover 18 , wherein the user can embed the transparent window 19 into the top inner wall of the device top cover 18 , so that the staff can observe the operation inside the sample loading tank 4 through the transparent window 19 .

[0029] Working principle: The peristaltic pump 2 at the bottom of the water storage tank 1 can operate the saline therein through the connected solenoid valve 3 and introduce it into the sample loading tank 4 connected thereto. The saline in the sample loading tank 4 can introduce the sample into the quantitative ring 7 on the quantitative tube 6 through the six-way injection valve 5. The carrier gas port 8 on one side of the quantitative ring 7 can operate to adsorb the external air and introduce the sample in the quantitative ring 7 into the connected analyzer 11. The vent port 9 on one side of the six-way injection valve 5 can guide the excess air pressure in the analyzer 11. The flow meter 10 on one side controls the guided air pressure, so that the analyzer 11 can automatically inject the sample in the quantitative ring 7 through the carrier gas port 8 and the vent port 9, thereby improving the injection efficiency of the device; the bottom of the analyzer 11 The support base 12 can fix and isolate the device on the ground, and the tools needed for work can be placed in the storage box 13 in the support base 12, so as to be convenient for the staff to use. The multiple groups of heat dissipation holes 14 on the outer wall of the back of the analyzer 11 can dissipate the heat generated by the electronic components and extend the service life of the device. The stirring mechanism 15 on the top of the water storage tank 1 is convenient for the staff to mix the brine, and the scale mark 16 on its outer wall is convenient for the staff to understand the use of the brine. The operation of the hydraulic rod 17 on the outer wall of the sample loading tank 4 facilitates the lifting and lowering of the equipment top cover 18, and the staff can observe the operation of the device through the transparent window 19, so that the practicability of the device is improved, and the function of improving the injection efficiency and practicability of a hydraulic injector is realized.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic sample injector, comprising a water storage tank (1), characterized in that: A peristaltic pump (2) is installed at the bottom of the water storage tank (1), a solenoid valve (3) is installed on one side of the peristaltic pump (2), a sample loading tank (4) is installed on one side of the solenoid valve (3), a six-way injection valve (5) is installed on the back outer wall of the sample loading tank (4), a quantitative tube (6) is installed on the top outer wall of the six-way injection valve (5), a quantitative ring (7) is installed on one side of the quantitative tube (6), a carrier gas port (8) is installed on the side of the outer wall of the quantitative tube (6) close to the quantitative ring (7), a vent (9) is installed on the side of the top outer wall of the six-way injection valve (5) away from the quantitative tube (6), a flow meter (10) is installed on one side of the vent (9), and an analyzer (11) is installed on the side of the top outer wall of the quantitative tube (6) close to the vent (9).

2. A hydraulic sample injector according to claim 1, characterized in that: A support base (12) is fixed to the outer wall of the bottom of the analyzer (11), and a storage box (13) is inserted into the inner wall of the support base (12).

3. A hydraulic sample injector according to claim 1, characterized in that: The rear outer wall of the analyzer (11) is provided with a plurality of groups of heat dissipation holes (14), and the plurality of groups of heat dissipation holes (14) are evenly distributed on the rear outer wall of the analyzer (11).

4. A hydraulic sample injector according to claim 1, characterized in that: A stirring mechanism (15) is installed on the top outer wall of the water storage tank (1).

5. A hydraulic sample injector according to claim 1, characterized in that: The outer wall of the water storage tank (1) is provided with scale marks (16).

6. A hydraulic sample injector according to claim 1, characterized in that: Two groups of hydraulic rods (17) are fixed to the side outer wall of the sample loading tank (4), and the two groups of hydraulic rods (17) are symmetrically distributed on the side outer wall of the sample loading tank (4). The top outer wall of the hydraulic rods (17) is installed with a device top cover (18).

7. A hydraulic sample injector according to claim 6, characterized in that: A transparent window (19) is installed on the top inner wall of the equipment top cover (18).

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