CN212662772U

CN212662772U - Chromatographic adsorption and analysis device

Info

Publication number: CN212662772U
Application number: CN202021287791.8U
Authority: CN
Inventors: 邓荣龙; 方鹏辉
Original assignee: Shanghai Nuoyu Testing Technology Co ltd
Current assignee: Shanghai Nuoyu Testing Technology Co ltd
Priority date: 2020-07-05
Filing date: 2020-07-05
Publication date: 2021-03-09
Anticipated expiration: 2030-07-05

Abstract

The utility model discloses a chromatogram adsorbs analytical equipment, including the heat dissipation base, the top central authorities outer wall fixed mounting of heat dissipation base has the ultra-low temperature refrigeration piece, and the top outer wall of ultra-low temperature refrigeration piece bonds and has the cold volume seat of storage, the outer wall fixed mounting all around at heat dissipation base top has same fixed shell, and the middle part outer wall of fixed shell both sides has all seted up first opening, and one of them first open-ended inner wall fixed mounting has sample gas to import and export, and another first open-ended inner wall fixed mounting has gas circuit business turn over gas port. The utility model provides a chromatographic adsorption analysis device makes the heater strip become the spring form, and spring form heater strip can tightly paste also short circuit together to the tiny hot melt of heater strip is little, just does not have the heat source in the twinkling of an eye when closing the heating, combines the setting of heat radiation fins and fan, can realize rapid cooling, has improved cooling efficiency, and then makes things convenient for device's used repeatedly.

Description

Chromatographic adsorption and analysis device

Technical Field

The utility model relates to an analytic technical field of chromatogram especially relates to a chromatogram adsorbs analytical equipment.

Background

In the chromatographic method, the detection has a sensitivity, which is the minimum limit of detection. This minimum limit constrains the detection to be difficult to identify where recontamination is low (and also in the toxic range). The chromatographic analysis is mainly divided into two occasions, namely a fixed pollution source and a non-fixed pollution source. The concentration of stationary sources of contamination is often high and can be monitored with simple chromatographic configurations. However, in a non-fixed pollution area, the pollution amount is not enough to be monitored, but the pollution amount is toxic and harmful gas, and the adsorption and desorption device is used for slowly concentrating low-concentration gas in a quantitative pipeline, then monitoring the amount in the quantitative pipeline, and then calculating the time and concentration ratio in a reverse mode to achieve the purpose of monitoring.

Chromatographic adsorption analytical device among the prior art, because the not good of quick rising and falling temperature control leads to there being residue in the adsorption tube, the test data precision is low. The structure is complicated, the heater like an armor is used, and the heat capacity is large. The heat capacity of the heater is large in a tiny area, and the temperature is difficult to be rapidly reduced. The whole structure is large and is difficult to be arranged in a 6u chromatograph.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a chromatographic adsorption analysis device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chromatographic adsorption and analysis device comprises a heat dissipation base, wherein an ultra-low temperature refrigerating sheet is fixedly arranged on the outer wall of the center of the top of the heat dissipation base, and the outer wall of the top of the ultra-low temperature refrigerating sheet is bonded with a cold storage seat, the outer walls of the periphery of the top of the heat dissipation base are fixedly provided with the same fixed shell, the outer walls of the middle parts of the two sides of the fixed shell are both provided with first openings, wherein the inner wall of one first opening is fixedly provided with a sample gas inlet and outlet, the inner wall of the other first opening is fixedly provided with a gas path inlet and outlet, the circumferential inner walls of the two first openings are both provided with a sealing structure, the same adsorption tube is fixedly arranged between the sample gas inlet and outlet and the gas path inlet and outlet, and the circumference outer wall of adsorption tube has the heater strip around having connect, the heater strip becomes the spring form, the first recess that the level set up is seted up at the top of storing cold volume seat, and the adsorption tube is located the inside of first recess.

Preferably, the same heat-insulating fixing cover is fixedly mounted on the peripheral outer wall of the top of the fixing shell.

Preferably, the same cotton wrapping material is fixedly arranged on the periphery of the inner wall of the fixed shell.

Preferably, the outer wall of the top of the cold storage seat is provided with a refrigerating device adhesive surface, and the outer wall of the top of the refrigerating device adhesive surface is fixedly provided with a heating wire protective cover.

Preferably, the outer walls at two ends of the heating wire are fixedly provided with heating wall penetrating structures, the outer walls at two sides of one end of the fixed shell are provided with second openings, the inner walls of the two second openings are connected with the outer walls of the two heating wall penetrating structures through bolts respectively, one of the two second openings is fixedly provided with a first heating wire leading-out line and the other is fixedly provided with a second heating wire leading-out line.

Preferably, a third opening is formed in the outer wall of the middle of one end of the fixed shell, and a peeping window is fixedly mounted on the inner wall of the third opening.

Preferably, the peripheral outer walls of the heat dissipation base are provided with heat dissipation fins, and the peripheral outer walls of the bottom of the heat dissipation base are fixedly provided with the same fan.

The utility model has the advantages that:

1. the utility model provides a pair of chromatographic adsorption analytical device, through being provided with the ultra-low temperature refrigeration piece and storing cold volume seat to make the adsorption tube be located the first recess on storing cold volume seat, glue the ultra-low temperature refrigeration piece and store cold volume seat bonding through the heat conduction simultaneously, the ultra-low temperature refrigeration piece small in size enables the ultra-low temperature refrigeration piece and stores cold volume seat and pastes tightly, and then can effectual improvement refrigeration efficiency, and then guaranteed the refrigeration effect and the refrigeration efficiency of adsorption tube, and then improved adsorption effect.

2. The utility model provides a chromatographic adsorption analysis device is through being provided with the heat conduction silk to make the heater strip become the spring form, the spring form heater strip can tightly paste also short circuit together, and the tiny hot melt of heater strip is little, just does not have the heat source in the twinkling of an eye when closing the heating, combines the setting of heat radiation fins and fan, can realize rapid cooling, has improved cooling efficiency, and then makes things convenient for device's used repeatedly.

Drawings

Fig. 1 is a schematic structural view of a heat-insulating fixing cover of a chromatographic adsorption and desorption device provided by the present invention;

fig. 2 is a schematic perspective view of a chromatographic adsorption and desorption device according to the present invention;

fig. 3 is a schematic view of a partial three-dimensional structure of an adsorption tube and a heating wire of a chromatographic adsorption and desorption device provided by the present invention;

fig. 4 is a schematic view of a partial structure inside a fixed housing of a chromatographic adsorption and desorption device provided by the present invention;

fig. 5 is a schematic view of a partial side structure of a heat dissipation base of a chromatographic adsorption and desorption device according to the present invention;

fig. 6 is a schematic view of a bottom structure of a fan of a chromatographic adsorption analysis device according to the present invention.

In the figure: the device comprises a heat preservation fixing cover, a sample gas inlet and outlet, a fixing shell, a cotton material bag, a gas inlet and outlet, a sealing structure, a heating wire leading-out circuit I, a peeping window 8, a heating wire leading-out circuit II, a heating wall-penetrating joint 10, an ultra-low temperature refrigerating sheet 11, a cold storage seat 12, a heat dissipation base 13, a fan 14, a refrigerating device bonding surface 15, a heating wire protective cover 16, an adsorption pipe 17 and a heating wire 18.

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.

Example 1

Referring to fig. 1-6, a chromatographic adsorption and analysis device comprises a heat dissipation base 13, the top central outer wall of the heat dissipation base 13 is connected with an ultra-low temperature refrigeration sheet 11 through a bolt, the top outer wall of the ultra-low temperature refrigeration sheet 11 is bonded with a cold storage seat 12, the peripheral outer walls of the top of the heat dissipation base 13 are connected with the same fixed housing 3 through bolts, the middle outer walls of two sides of the fixed housing 3 are respectively provided with a first opening, the inner wall of one first opening is connected with a sample gas inlet and outlet 2 through a bolt, the inner wall of the other first opening is connected with a gas path inlet and outlet 5 through a bolt, the circumferential inner walls of the two first openings are respectively provided with a sealing structure 6, the same adsorption tube 17 is connected between the sample gas inlet and outlet 2 and the gas path inlet and outlet 5 through a bolt, the circumferential outer wall of the, the top of the cold storage seat 12 is provided with a first groove which is horizontally arranged, and the adsorption pipe 17 is positioned inside the first groove.

In the utility model, the peripheral outer wall of the top of the fixed shell 3 is connected with the same heat-insulating fixed cover 1 through bolts, so as to protect the inside of the device;

the periphery of the inner wall of the fixed shell 3 is connected with the same cotton-covered material 4 through bolts, so that the heat preservation and insulation in the device are realized;

the outer wall of the top of the cold storage seat 12 is provided with a refrigerating device adhesive surface 15, and the outer wall of the top of the refrigerating device adhesive surface 15 is fixedly provided with a heating wire protective cover 16;

the outer walls of two ends of the heating wire 18 are connected with heating through-wall structures 10 through bolts, the outer walls of two sides of one end of the fixed shell 3 are provided with second openings, the inner walls of the two second openings are respectively connected with the outer walls of the two heating through-wall structures 10 through bolts, the outer wall of one end of one heating through-wall structure 10 is connected with a heating wire leading-out line I7 through bolts, and the outer wall of one end of the other heating through-wall structure 10 is connected with a heating wire leading-out line II 9 through bolts;

a third opening is formed in the outer wall of the middle of one end of the fixed shell 3, and the inner wall of the third opening is connected with a peeping window 8 through a bolt, so that the inside of the device can be observed conveniently;

the peripheral outer walls of the heat dissipation base 13 are all provided with heat dissipation fins, and the peripheral outer walls of the bottom of the heat dissipation base 13 are connected with the same fan 14 through bolts.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

The working principle is as follows: the sample gas continuously enters the adsorption tube 17 through the sample gas inlet and outlet 2, the ultra-low temperature refrigerating sheet 11 is refrigerating (and refrigerating in advance for 5 minutes), the cold storage seat 12 is fully refrigerated to reach a temperature, and the adsorption tube 17 is cooled by the temperature. The continuously passing sample gas is adsorbed in the adsorption tube 17 after passing through the cooled tube, and other gas components escape through the gas inlet/outlet 5.

The outside "carrier gas" switches when above process reaches certain concentration, and the super low temperature refrigeration piece 11 time-out work when switching closes the refrigeration, and heater strip 18 opens work, with rising to the uniform temperature in adsorption tube 17 in the short time, and "analysis object" in the adsorption tube 17 is analyzed in the adsorption tube this moment, and the carrier passes through 5 mouths of gas circuit business turn over gas port and gets into this moment, and the "analysis object" that will originally adsorb in adsorption tube 17 is taken out, enters into the chromatographic column. One sequence completes the function of re-opening the ultra-low temperature refrigerating sheet 11 and repeating the sequence sample injection.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a chromatogram adsorbs analytical equipment, includes heat dissipation base (13), its characterized in that, the top central authorities outer wall fixed mounting of heat dissipation base (13) has ultra-low temperature refrigeration piece (11), and the top outer wall of ultra-low temperature refrigeration piece (11) bonds and has storage cold volume seat (12), the outer wall fixed mounting all around at heat dissipation base (13) top has same fixed casing (3), and the middle part outer wall of fixed casing (3) both sides has all seted up first opening, and one of them first open-ended inner wall fixed mounting has sample gas to import and export (2), and another first open-ended inner wall fixed mounting has gas circuit business turn over gas port (5), and two first open-ended circumference inner walls all are provided with seal structure (6), fixed mounting has same adsorption tube (17) between sample gas import and export (2) and gas circuit business turn over gas port (5), and the circumference outer wall of adsorption tube (17) is round to, the heating wire (18) is in a spring shape, a first groove which is horizontally arranged is formed in the top of the cold storage seat (12), and the adsorption pipe (17) is located inside the first groove.

2. The chromatographic adsorption and analysis device according to claim 1, wherein the same thermal insulation fixing cover (1) is fixedly installed on the peripheral outer wall of the top of the fixing shell (3).

3. A chromatographic adsorption and analysis device according to claim 2 characterized in that the periphery of the inner wall of the fixed casing (3) is fixedly provided with the same cotton-coated material (4).

4. The chromatographic adsorption and analysis device according to claim 1, wherein the refrigeration device adhesive surface (15) is disposed on the top outer wall of the refrigeration storage seat (12), and the heating wire protection cover (16) is fixedly mounted on the top outer wall of the refrigeration device adhesive surface (15).

5. The chromatographic adsorption and analysis device according to claim 1, wherein heating through-wall structures (10) are fixedly mounted on outer walls at two ends of the heating wire (18), second openings are formed in outer walls at two sides of one end of the fixed housing (3), inner walls of the two second openings are respectively connected with outer walls of the two heating through-wall structures (10) through bolts, a first heating wire leading-out line (7) is fixedly mounted on the outer wall at one end of one of the heating through-wall structures (10), and a second heating wire leading-out line (9) is fixedly mounted on the outer wall at one end of the other heating through-wall structure (10).

6. The chromatographic adsorption and analysis device according to claim 5, wherein a third opening is formed in the middle outer wall of one end of the fixed housing (3), and a peeping window (8) is fixedly installed in the inner wall of the third opening.

7. The chromatographic adsorption and analysis device according to claim 1, wherein the peripheral outer walls of the heat dissipation base (13) are provided with heat dissipation fins, and the peripheral outer walls of the bottom of the heat dissipation base (13) are fixedly provided with the same fan (14).