CN217367217U

CN217367217U - Gas cold trap and gas cold trap concentrator

Info

Publication number: CN217367217U
Application number: CN202221802197.7U
Authority: CN
Inventors: 罗利华; 韩雷刚; 穆培东; 郭凯
Original assignee: Beijing Juxin Zhuifeng Technology Co ltd
Current assignee: Beijing Juxin Zhuifeng Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-09-06
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses a gaseous cold-trap and gaseous cold-trap concentrator, wherein, this gaseous cold-trap includes the shell, the both sides middle part of shell all installs and catches collection pipe support piece, it has the collection pipe and extends to catch the through connection between the pipe support piece the shell outside, be located in the shell the inner chamber is installed in the outside of catching the pipe, the inner chamber with form the cavity between the shell, catch collection pipe support piece pass through the screw with the inner chamber is fixed, the outside cover of shell is equipped with the insulation cover, the mounting groove has all been seted up at the both ends of insulation cover, all install the fixed block in the mounting groove, the shell passes through liquid nitrogen entry and liquid nitrogen export, beneficial effect are installed respectively to the fixed block: the utility model discloses the concentration temperature is low, is favorable to the concentration of lower boiling point gas, and can automatic temperature control, easy operation.

Description

Gas cold trap and gas cold trap concentrator

Technical Field

The utility model relates to a sample pretreatment field relates to a gaseous cold trap and gaseous cold trap concentrator particularly.

Background

Most of the current gas concentration field is electronic refrigeration, the refrigeration temperature of the refrigeration mode can only reach-40 ℃ at the lowest, and the method has a good concentration effect on some low-boiling-point substances; in addition, the gas concentration is carried out by making a low-temperature environment through a cup of liquid nitrogen/liquid oxygen, the structure wastes the liquid nitrogen/liquid oxygen, the operation is not easy, and the operation also has the danger of scalding.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a gaseous cold-trap and gaseous cold-trap concentrator to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this:

according to an aspect of the present invention, a gas cold trap is provided.

The gas cold trap comprises a shell, wherein the middle parts of two sides of the shell are respectively provided with a collecting pipe supporting piece, a collecting pipe penetrates through the collecting pipe supporting pieces and extends to the outer side of the shell, an inner cavity is arranged in the shell and positioned on the outer side of the collecting pipe, a cavity is formed between the inner cavity and the shell, the collecting pipe supporting piece is fixed with the inner cavity through a screw, the outer side of the shell is sleeved with a heat insulation sleeve, two ends of the heat insulation sleeve are respectively provided with an installation groove, a fixed block is arranged in each installation groove, the shell is respectively provided with a liquid nitrogen inlet and a liquid nitrogen outlet through the fixed block, the liquid nitrogen inlet extends into the cavity and is communicated with the cavity, the liquid nitrogen outlet extends into the cavity and is communicated with the cavity, and a first temperature sensor and a second temperature sensor are respectively arranged between the collecting pipe supporting piece and the shell, which are positioned at the liquid nitrogen inlet, and between the heat insulation sleeve and the shell.

Further, solid fixed ring is installed in the outside of insulation cover, hand ring is installed in solid fixed ring's the outside.

Furthermore, the liquid nitrogen inlet and the liquid nitrogen outlet can be detachably provided with sealing rings, and the sealing rings are made of rubber materials.

Further, the base is installed to the bottom side of shell, liquid nitrogen feed mechanism is installed to one side of base, liquid nitrogen feed mechanism includes the liquid nitrogen holding vessel.

Furthermore, a liquid nitrogen output pump is installed on one side of the liquid nitrogen storage tank, a liquid nitrogen output pipe is installed at the output end of the liquid nitrogen output pump, and the liquid nitrogen output pipe is connected with the liquid nitrogen inlet.

According to the utility model discloses a further aspect provides a concentrated appearance of gaseous cold-trap, and this concentrated appearance of gaseous cold-trap includes foretell gaseous cold-trap.

The beneficial effects are as follows: the utility model discloses the condensing temperature is low, be favorable to the concentration of lower boiling point gas, and can automatic temperature control, and is simple in operation, the cooperation through the solid fixed ring in the insulation cover outside and portable ring is convenient for to the installation of shell and draw, leakproofness when promoting the use of liquid nitrogen entry through the sealing washer, store the liquid nitrogen that needs to use through the liquid nitrogen holding vessel among the liquid nitrogen feed mechanism, enter into the liquid nitrogen entrance through the liquid nitrogen output tube with the liquid nitrogen through the liquid nitrogen output pump when using, thereby be convenient for the gas concentration's work.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a gas cold trap and a gas cold trap concentrator according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of a gas cold trap according to an embodiment of the present invention;

fig. 3 is a schematic top view of a gas cold trap according to an embodiment of the present invention.

In the figure:

1. a housing; 2. a trap pipe support; 3. collecting pipes; 4. an inner cavity; 5. a cavity; 6. a thermal insulation sleeve; 7. mounting grooves; 8. a fixed block; 9. a liquid nitrogen inlet; 10. a liquid nitrogen outlet; 11. a first temperature sensor; 12. a second temperature sensor; 13. a fixing ring; 14. a hand ring; 15. a seal ring; 16. a base; 17. a liquid nitrogen storage tank; 18. a liquid nitrogen output pump; 19. and a liquid nitrogen output pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 all belong to the protection scope of the present invention.

As shown in fig. 1-3, a gas cold trap according to an embodiment of the present invention includes a housing 1, and is characterized in that a collecting pipe support 2 is installed at the middle of both sides of the housing 1, a collecting pipe 3 is connected between the collecting pipe support 2 and extends to the outside of the housing 1, an inner chamber 4 is installed inside the housing 1 at the outside of the collecting pipe 3, a cavity 5 is formed between the inner chamber 4 and the housing 1, the collecting pipe support 2 is fixed to the inner chamber 4 by a screw, an insulating sleeve 6 is sleeved outside the housing 1, mounting grooves 7 are respectively opened at both ends of the insulating sleeve 6, fixing blocks 8 are installed inside the mounting grooves 7, a liquid nitrogen inlet 9 and a liquid nitrogen outlet 10 are respectively installed on the housing 1 through the fixing blocks 8, the liquid nitrogen inlet 9 extends into the cavity 5 and communicates with the cavity 5, the liquid nitrogen outlet 10 extends into the cavity 5 and is communicated with the cavity 5, a first temperature sensor 11 and a second temperature sensor 12 are respectively arranged between the collecting pipe support 2 at the liquid nitrogen inlet 9 and the insulating sleeve 6 and the shell 1, when in use, liquid nitrogen/liquid oxygen enters the cavity 5 through the liquid nitrogen inlet 9, the liquid nitrogen/liquid oxygen passes through the inner cavity 4 at the moment, the temperature of the inner cavity 4 can reach-180 ℃ due to the action of the liquid nitrogen/liquid oxygen, the temperature of the collecting pipe 3 in the inner cavity 4 is reduced due to the reduction of the temperature at the moment, when the temperature of the collecting pipe 3 is reduced, the gas passing through the collecting pipe 3 is concentrated at the moment, the temperature sensors arranged on the shell 1 and the inner cavity 4 can detect the temperature of a cold trap in real time, and the liquid nitrogen electromagnetic valve performs opening and closing actions according to the temperature detected in real time, thereby the volume of the liquid nitrogen/liquid oxygen that the control got into the cold trap reaches the purpose of control cold trap temperature, and is thus visible, the utility model discloses concentration temperature is low, is favorable to the concentration of lower boiling gas, and can automatic temperature control, easy operation.

In addition, as shown in fig. 1-2, in one embodiment, a fixing ring 13 is installed on the outer side of the thermal insulation sleeve 6, a hand ring 14 is installed on the outer side of the fixing ring 13, a sealing ring 15 is detachably installed on both the liquid nitrogen inlet 9 and the liquid nitrogen outlet 10, the sealing ring 15 is made of rubber, the installation and extraction of the shell 1 are facilitated through the matching of the fixing ring 13 and the hand ring 14 on the outer side of the thermal insulation sleeve 6, and the sealing performance of the liquid nitrogen inlet 9 in use is improved through the sealing ring 15.

In addition, as shown in fig. 1, in one embodiment, a base 16 is installed at the bottom side of the housing 1, a liquid nitrogen feeding mechanism is installed at one side of the base 16, the liquid nitrogen feeding mechanism includes a liquid nitrogen storage tank 17, a liquid nitrogen output pump 18 is installed at one side of the liquid nitrogen storage tank 17, a liquid nitrogen output pipe 19 is installed at an output end of the liquid nitrogen output pump 18, the liquid nitrogen output pipe 19 is connected to the liquid nitrogen inlet 9, liquid nitrogen to be used is stored through the liquid nitrogen storage tank 17 in the liquid nitrogen feeding mechanism, and when in use, the liquid nitrogen enters the liquid nitrogen inlet 9 through the liquid nitrogen output pipe 19 through the liquid nitrogen output pump 18, thereby facilitating the work of gas concentration.

Based on the above scheme, the utility model discloses during the actual application, its theory of operation or operation process are as follows: when the device is used, liquid nitrogen/liquid oxygen enters the cavity 5 through the liquid nitrogen inlet 9, the liquid nitrogen/liquid oxygen passes through the inner cavity 4 at the moment, the temperature of the inner cavity 4 can reach-180 ℃ under the action of the liquid nitrogen/liquid oxygen, the temperature of the collecting pipe 3 in the inner cavity 4 is reduced due to the reduction of the temperature at the moment, when the temperature of the collecting pipe 3 is reduced, gas passing through the collecting pipe 3 is concentrated, the temperature sensors arranged on the shell 1 and the inner cavity 4 can detect the temperature of a cold trap in real time, the liquid nitrogen electromagnetic valve performs opening and closing actions according to the temperature detected in real time, the quantity of the liquid nitrogen/liquid oxygen entering the cold trap is controlled, the purpose of controlling the temperature of the cold trap is achieved, the shell 1 can be conveniently installed and extracted through the matching of the fixing ring 13 and the hand-held ring 14 on the outer side of the heat insulation sleeve 6, the sealing performance of the liquid nitrogen inlet 9 is improved through the sealing ring 15 when the liquid nitrogen inlet 9 is used, the liquid nitrogen required to be used is stored through a liquid nitrogen storage tank 17 in the liquid nitrogen feeding mechanism, and the liquid nitrogen enters the liquid nitrogen inlet 9 through a liquid nitrogen output pipe 19 through a liquid nitrogen output pump 18 when the liquid nitrogen feeding mechanism is used, so that the gas concentration work is facilitated.

With the help of the above technical scheme of the utility model, the utility model discloses the concentration temperature is low, be favorable to the concentration of lower boiling point gas, and can automatic temperature control, and easy operation, the solid fixed ring 13 and the portable ring 14's in the 6 outsides of insulation cover cooperation is convenient for to shell 1 installation and extraction, promote the leakproofness when liquid nitrogen entry 9 uses through sealing washer 15, liquid nitrogen holding vessel 17 through among the liquid nitrogen feed mechanism stores the liquid nitrogen that needs to use, enter into liquid nitrogen entry 9 departments through liquid nitrogen output tube 19 with the liquid nitrogen through liquid nitrogen output pump 18 when using, thereby the gas concentration's of being convenient for work.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gas cold trap, includes shell (1), its characterized in that, catch pipe support piece (2) are all installed at the both sides middle part of shell (1), it catches pipe (3) and extends to catch between pipe support piece (2) run through be connected with and to the shell (1) outside, lie in shell (1) inner chamber (4) are installed to the outside of catching pipe (3), inner chamber (4) with form cavity (5) between shell (1), catch pipe support piece (2) through the screw with inner chamber (4) are fixed, the outside cover of shell (1) is equipped with insulation cover (6), mounting groove (7) have all been seted up at the both ends of insulation cover (6), all install fixed block (8) in mounting groove (7), shell (1) is passed through liquid nitrogen entry (9) and liquid nitrogen export (10) are installed respectively to fixed block (8), the liquid nitrogen inlet (9) extends into the cavity (5) and is communicated with the cavity (5), the liquid nitrogen outlet (10) extends into the cavity (5) and is communicated with the cavity (5), and a first temperature sensor (11) and a second temperature sensor (12) are respectively arranged between the collecting pipe support (2) and the heat insulation sleeve (6) which are positioned at the liquid nitrogen inlet (9) and the shell (1).

2. A gas cold trap according to claim 1, wherein the outside of the thermal insulating jacket (6) is provided with a fixing ring (13), and the outside of the fixing ring (13) is provided with a hand ring (14).

3. A gas cold trap according to claim 2, wherein the liquid nitrogen inlet (9) and the liquid nitrogen outlet (10) are each detachably fitted with a sealing ring (15), the sealing rings (15) being of rubber material.

4. A gas-cooled trap according to claim 3 wherein the bottom side of the housing (1) is fitted with a base (16), and one side of the base (16) is fitted with a liquid nitrogen feed mechanism comprising a liquid nitrogen storage tank (17).

5. A gas cold trap according to claim 4, wherein a liquid nitrogen output pump (18) is arranged at one side of the liquid nitrogen storage tank (17), a liquid nitrogen output pipe (19) is arranged at the output end of the liquid nitrogen output pump (18), and the liquid nitrogen output pipe (19) is connected with the liquid nitrogen inlet (9).

6. A gas cold trap concentrator comprising the gas cold trap of claim 5.