CN210719906U

CN210719906U - Nitrogen blowing concentration device for sample treatment

Info

Publication number: CN210719906U
Application number: CN201921367753.0U
Authority: CN
Inventors: 丁黎
Original assignee: Nanjing Jiening Pharmaceutical Technology Co ltd
Current assignee: Nanjing Jiening Pharmaceutical Technology Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-09
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a nitrogen blows enrichment facility for sample treatment, including the nitrogen making appearance, the preheating cabinet, test-tube rack and electrothermal tube, the sample test tube has been placed to the top of nitrogen making appearance, one side of nitrogen making appearance is fixed with the preheating cabinet, the inside of preheating cabinet is fixed with the electrothermal tube, the rear side of nitrogen making appearance is fixed with the straight-bar, the fixed surface of straight-bar has the sliding block, the front side welding of sliding block has the diaphragm, the inboard of diaphragm is fixed with the rubber circle, the inboard cover of rubber circle is equipped with the gas needle, the inboard centre gripping of test-tube rack has the vacuum storage tube, the upper end joint of vacuum storage tube has the rubber buffer, the inboard joint of rubber buffer has the second pipe, rubber hose and first pipe connection are passed through to the one end of second pipe. The utility model discloses a set up diaphragm, rubber circle, gas needle, preheating cabinet, electrothermal tube, first trachea, second trachea, solved the unable independent problem of unable intensification nitrogen gas and the inconvenient sample after taking out the concentration when height, the nitrogen of adjusting each gas needle blow the concentration operation.

Description

Nitrogen blowing concentration device for sample treatment

Technical Field

The utility model relates to a medicine detects and experimental relevant equipment technical field, specifically is a nitrogen blows enrichment facility for sample treatment.

Background

The nitrogen-blown concentration is usually carried out by blowing nitrogen gas into the surface of a heated sample, has the characteristics of time saving, convenient operation, easy control and the like, and can quickly obtain expected results. The method is widely applied to the industries of pesticide residue analysis, commodity inspection, food, environment, pharmacy, biological products and the like and the sample preparation in liquid phase, gas phase and mass spectrum analysis. Nitrogen is blown and weathers appearance, automatic rapid concentration appearance etc. using nitrogen to blow, blows nitrogen gas fast, in succession, controllable to the surface of heating the sample, makes moisture in the pending sample evaporate rapidly, the separation to realize the anaerobic concentration of sample, simultaneously, can keep the purity of sample, thereby reach the effect of rapid separation purification. The nitrogen blowing is not only simple to operate, but also can process a plurality of samples simultaneously, thereby greatly shortening the detection time. Thus, it is widely used. At present, when carrying out nitrogen and blowing the concentration, because the sample test tube is more, and the sample volume in the test tube is inconsistent, the gas needle output of nitrogen generator, can't adjust the height of each gas needle according to the height of liquid level, the lift gas needle in batches only, and in the sample test tube that leads to low liquid level, the concentrated effect variation of sample, the limitation is great, and nitrogen is blown and is swept at the sample top with nitrogen gas, can break the gas-liquid equilibrium above the liquid through the quick flow of nitrogen gas, make the liquid volatilize concentrated speed accelerate, volatilize rapidly, but the nitrogen gas of adoption is cold usually, can't be more quick make the sample concentrate, and concentrated sample if directly take, its unavoidable contacts with the air once more, easy reoxidation, consequently, it is necessary to improve prior art, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nitrogen blows enrichment facility for sample treatment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a nitrogen blows enrichment facility for sample treatment, includes nitrogen making appearance, preheating cabinet, test-tube rack and electrothermal tube, the sample test tube has been placed to nitrogen making appearance's top, one side of nitrogen making appearance is fixed with the preheating cabinet, the inside of preheating cabinet is fixed with the electrothermal tube, the rear side of nitrogen making appearance is fixed with the straight-bar, the fixed surface of straight-bar has the sliding block, the front side welding of sliding block has the diaphragm, the inboard of diaphragm is fixed with the rubber circle, the inboard cover of rubber circle is equipped with the gas needle, the inboard clamp of test-tube rack has vacuum storage tube, the upper end joint of vacuum storage tube has the rubber buffer, the inboard joint of rubber buffer has the second pipe, the one end of second pipe is passed through rubber hose and is connected with first pipe; the sliding block is a hollow rectangular block, a screw rod penetrates through the rear side of the sliding block, a butting block is fixed at the front end of the screw rod, and the butting block is fixedly abutted with the rear side face of the straight rod in a contact manner; the outside of preheating cabinet is connected with the joint through the trachea, the bottom and the gas needle of joint are connected, tracheal fixed surface has gas flow valve, the front side of preheating cabinet is connected with the inside air feed export of nitrogen generator through the connecting pipe.

Preferably, the other end of the first conduit extends into the bottom end of the sample test tube, the other end of the second conduit extends into the bottom end of the vacuum storage tube, and the surface of the rubber hose clamps the control valve.

Preferably, fifteen rubber rings are arranged on the inner side of the transverse plate, fifteen gas needles matched with the rubber rings are also arranged, and each gas needle is connected with the preheating box through a joint through a gas pipe.

Preferably, the sample test tubes are located under the air needles and are matched with the number of the air needles, and the vacuum storage tubes in the test tube rack are also matched with the number of the sample test tubes.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model can adjust the height of the gas needles in batches by arranging the transverse plate, the rubber ring and the gas needles, can adjust the height of the gas needles in batches and can also adjust the height of the gas needles in a single way to match the height of the liquid level in the sample test tube, reduce the waste of nitrogen gas, improve the nitrogen blowing concentration efficiency, effectively solve the problem that the height of each gas needle cannot be independently adjusted and cannot meet the batch processing requirement of samples without the liquid level, when nitrogen blowing concentration is carried out, the sample test tube with the samples is firstly placed on a nitrogen generator, the gas needle sleeve is sleeved in the rubber ring, the straight rod is butted and fixed by screwing the butting block by the screw rod, thereby fixing the height positions of the sliding block and the transverse plate, then, the corresponding gas needles are adjusted to lift in the rubber ring according to the liquid level of the samples in each group of the sample test tubes, the gas needles are fixed by the friction force of the rubber ring, then inputting nitrogen for processing, avoiding the waste of nitrogen caused by overlarge distance between the bottom end of the gas needle and the liquid level of the sample, improving the nitrogen blowing efficiency and reducing the cost;

(2) the utility model discloses a set up preheating cabinet, electrothermal tube, make the utility model discloses can preheat nitrogen gas, improve concentration efficiency greatly, shorten the concentration time, the effectual unable nitrogen gas that heaies up when having solved nitrogen blow concentration operation, the problem of improvement concentration efficiency, when carrying out nitrogen gas concentration, nitrogen gas supply equipment in the nitrogen generator is connected by the connecting pipe, preheat through the electrothermal tube in the preheating cabinet, make the nitrogen gas that blows off through the trachea through the gas needle have certain temperature, improve concentration efficiency, and adjust the output quantity of nitrogen gas on each trachea through the gas flow valve on the trachea, strong adaptability;

(3) the utility model discloses a set up first trachea, the second trachea, make the utility model discloses can take out the sample after the concentration more the efficient, reduce with the contact of air, avoid by the secondary oxidation, improve the rate of accuracy of follow-up detection, the effectual inconvenient problem of taking out the sample after the concentration of having solved, in getting into the vacuum storage tube of negative pressure with the second catheterization rubber buffer, in the sample test tube after the first catheterization sample concentration that will pass through the rubber hose connection, open the control valve on the rubber hose, attract the concentrated sample in the sample test tube to store through the negative pressure in the vacuum storage tube, reduce the spill with the air, convenient subsequent detection is used.

Drawings

Fig. 1 is an overall front view of the present invention.

Fig. 2 is a side view of the internal view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a top view of the cross plate of the present invention.

Fig. 5 is a connection diagram of the first conduit and the second conduit according to the present invention.

The reference numbers in the figures are: 1. a nitrogen generator; 2. a connecting pipe; 3. a preheating box; 4. a gas flow valve; 5. an air tube; 6. a sample tube; 7. a straight rod; 8. a rubber ring; 9. a transverse plate; 10. air needle; 11. a joint; 12. a test tube rack; 13. a vacuum storage tube; 14. a rubber plug; 15. a slider; 16. a screw; 17. an electric heating tube; 18. a first conduit; 19. a second conduit; 20. a rubber hose; 21. a control valve; 22. and a butt joint block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a nitrogen blowing concentration device for sample treatment comprises a nitrogen making instrument 1, a preheating box 3, a test tube rack 12 and an electric heating tube 17, wherein the nitrogen making instrument 1 is a common nitrogen making instrument 1 on the market, the specific model of the nitrogen making instrument 1 is not specifically limited, the nitrogen making instrument is the prior disclosed technology, excessive description is not needed, a sample test tube 6 is placed above the nitrogen making instrument 1, the sample test tube 6 is used for storing a sample to be concentrated for trial, the preheating box 3 is fixed on one side of the nitrogen making instrument 1 and used for preheating the nitrogen, the electric heating tube 17 is fixed inside the preheating box 3, the model of the electric heating tube 17 is XY-JRB-011, the electric heating tube 17 provides a heat source for the nitrogen, a straight rod 7 is fixed on the rear side of the nitrogen making instrument 1 and used for fixing a transverse plate 9, a sliding block 15 is fixed on the surface of the straight rod 7 and used for adjusting the height of the transverse plate 9, the transverse plate 9 is welded on the front side of the sliding, diaphragm 9 is used for installing gas needle 10 and uses, the inboard of diaphragm 9 is fixed with rubber circle 8, the inboard cover of rubber circle 8 is equipped with gas needle 10, rubber circle 8 is through the frictional force of its inner wall with gas needle 10, fixed gas needle 10, the inboard centre gripping of test-tube rack 12 has vacuum storage tube 13, vacuum storage tube 13 is used for depositing concentrated sample solution, vacuum storage tube 13's upper end joint has rubber buffer 14, rubber buffer 14 is used for sealed vacuum storage tube 13, rubber buffer 14's inboard joint has second pipe 19, the one end of second pipe 19 is passed through rubber tube 20 and is connected with first pipe 18, second pipe 19, rubber tube 20 and first pipe 18 are used for deriving concentrated sample solution.

The other end of the first conduit 18 extends into the bottom end of the sample test tube 6, the other end of the second conduit 19 extends into the bottom end of the vacuum storage tube 13, a control valve 21 is clamped on the surface of the rubber hose 20, the first conduit 18 guides the sample solution in the sample test tube 6 into the vacuum storage tube 13 through the second conduit 19 via the rubber hose 20, and the control valve 21 is used for opening and closing the passage of the rubber hose 20 and isolating the circulation of the first conduit 18 and the second conduit 19 when the passage is closed. Sliding block 15 is the cavity rectangle piece, and sliding block 15's rear side runs through to install screw rod 16, and screw rod 16's front end is fixed with butt piece 22, and butt piece 22 is fixed with the trailing flank contact butt of straight-bar 7, and when screwing up butt piece 22 butt straight-bar 7 through screw rod 16, sliding block 15 is fixed with straight-bar 7, and the height of adjustable sliding block 15 when not hard up, locking once more can.

The outer side of the preheating box 3 is connected with a connector 11 through a gas pipe 5, the bottom end of the connector 11 is connected with a gas needle 10, a gas flow valve 4 is fixed on the surface of the gas pipe 5, the front side of the preheating box 3 is connected with a gas supply outlet inside the nitrogen generator 1 through a connecting pipe 2, the gas pipe 5 is used for conveying nitrogen, the flow of the nitrogen is controlled through the gas flow valve 4, the nitrogen is connected by nitrogen supply equipment inside the nitrogen generator 1, and the nitrogen generator 1 in the prior art is attached to the structure, so that excessive description is omitted. Fifteen rubber rings 8 on the inner side of the transverse plate 9 are arranged, fifteen gas needles 10 matched with the rubber rings are also arranged, and each gas needle 10 is connected with the preheating box 3 through a gas pipe 5 by a joint 11. The sample test tubes 6 are positioned right below the air needles 10 and are matched with the number of the air needles 10, and the vacuum storage tubes 13 in the test tube rack 12 are also matched with the number of the sample test tubes 6.

The working principle is as follows: when in use, the nitrogen generator 1 is stably placed, the sample test tube 6 with a sample is placed on the nitrogen generator 1, the sliding block 15 is sleeved on the straight rod 7 at the rear side of the nitrogen generator 1, the screw 16 is rotated to enable the abutting block 22 to abut against the straight rod 7, so that the sliding block 15 and the transverse plate 9 at the front side of the sliding block are fixed, the air needle 10 is inserted into the rubber ring 8 in the transverse plate 9, the bottom end of the air needle 10 is aligned with the sample test tube 6, external force is applied to enable the air needle 10 to descend in the rubber ring 8, the air needle 10 is descended to a proper height according to the liquid level in the sample test tube 6, the friction force inside the rubber ring 8 is utilized to fix the air needle 10, the preheating box 3 is connected with nitrogen supply equipment in the nitrogen generator 1 through the connecting pipe 2 at the moment to provide nitrogen, the nitrogen is preheated through the electric heating pipe 17 in the preheating box 3, the air pipe 5 is guided to the air needle 10 through the joint 11, and, and utilize nitrogen generator 1 to heat sample test tube 6 synchronously, and utilize gas flow valve 4 on the trachea 5 to adjust the flow size that the nitrogen gas was given vent to anger, start the nitrogen and blow the concentration operation, after the sample is concentrated, place test-tube rack 12 aside, get the aseptic clean vacuum storage tube 13 of inside negative pressure and place in test-tube rack 12, insert rubber buffer 14 with second pipe 19 and get into in vacuum storage tube 13, and insert the sample test tube 6 after the sample has been concentrated through the first pipe 18 that rubber hose 20 connects, open the control valve 21 on rubber hose 20, the sample in the sample test tube 6 is inhaled to the negative pressure in vacuum storage tube 13 and is stored, reduce the contact with the air.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a nitrogen blows enrichment facility for sample processing, includes nitrogen generator (1), preheating cabinet (3), test-tube rack (12) and electrothermal tube (17), its characterized in that: a sample test tube (6) is arranged above the nitrogen generator (1), a preheating box (3) is fixed on one side of the nitrogen generator (1), an electric heating tube (17) is fixed in the preheating box (3), a straight rod (7) is fixed at the rear side of the nitrogen generator (1), a sliding block (15) is fixed on the surface of the straight rod (7), a transverse plate (9) is welded on the front side of the sliding block (15), a rubber ring (8) is fixed on the inner side of the transverse plate (9), an air needle (10) is sleeved on the inner side of the rubber ring (8), a vacuum storage tube (13) is clamped at the inner side of the test tube rack (12), a rubber plug (14) is clamped at the upper end of the vacuum storage tube (13), a second conduit (19) is clamped on the inner side of the rubber plug (14), and one end of the second conduit (19) is connected with the first conduit (18) through a rubber hose (20); the sliding block (15) is a hollow rectangular block, a screw rod (16) penetrates through the rear side of the sliding block (15), a butting block (22) is fixed at the front end of the screw rod (16), and the butting block (22) is fixedly abutted with the rear side face of the straight rod (7) in a contact manner; the outside of preheating cabinet (3) is passed through trachea (5) and is connected with joint (11), the bottom that connects (11) is connected with gas needle (10), the fixed surface of trachea (5) has gas flow valve (4), the front side of preheating cabinet (3) is connected with the inside air feed export of nitrogen generator (1) through connecting pipe (2).

2. The nitrogen-blowing concentration device for sample processing according to claim 1, characterized in that: the other end of the first conduit (18) extends into the bottom end of the sample test tube (6), the other end of the second conduit (19) extends into the bottom end of the vacuum storage tube (13), and a control valve (21) is clamped on the surface of the rubber hose (20).

3. The nitrogen-blowing concentration device for sample processing according to claim 1, characterized in that: fifteen rubber rings (8) on the inner side of the transverse plate (9) are arranged, fifteen gas needles (10) matched with the rubber rings are also arranged, and each gas needle (10) is connected with the preheating box (3) through a gas pipe (5) through a joint (11).

4. The nitrogen-blowing concentration device for sample processing according to claim 1, characterized in that: sample test tube (6) are located air needle (10) under, and with the number phase-match of air needle (10), vacuum storage tube (13) in test-tube rack (12) are the same with the number phase-match of sample test tube (6).