CN211718201U

CN211718201U - Flash evaporation sample injector

Info

Publication number: CN211718201U
Application number: CN202020390278.5U
Authority: CN
Inventors: 薛海玲
Original assignee: Beijing Minnick Analytical Equipment Center
Current assignee: Beijing Minnick Analytical Equipment Center
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-20
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a flash distillation injector, the load simulator comprises a case, the internally mounted of machine case has high temperature safety cover and capillary fixed bolster, and the ribbon fixing base is installed to the bottom of machine case, and the upper surface of ribbon fixing base is connected with three way connection, and the temperature controller is installed to one side of machine case outside, installs the ball valve on the quick-witted case of temperature controller one side, installs the filter through the joint on the quick-witted case of ball valve below, and the opposite side wall mounting of machine case has two to connect. This flash evaporation sample injector, through stainless steel capillary limited resistance, the velocity of flow of control liquid sample, make it get into the flash evaporation heating block in succession, the high temperature is set for to the flash evaporation heating block, make its sample vaporize in the twinkling of an eye, guaranteed the homogeneity of the gasification of liquid sample component and the accuracy that gets into chromatographic analysis, install the ball valve on the quick-witted case of temperature controller one side in addition, the measurement sample passes through the ball valve switching pipeline, reach the pipeline and wash and replace remaining purpose, can in time clear away the remaining sample in the pipeline.

Description

Flash evaporation sample injector

Technical Field

The utility model relates to a flash distillation sample injector technical field specifically is a flash distillation sample injector.

Background

The collection and analysis of air samples containing organic matters are started late by a domestic thermal desorption method, and no matter the air samples are desorbed in a glass syringe or a cold trap in liquid nitrogen, dry ice and ice salt or in a vacuum bottle, instruments with complete specifications are not formed. The device is made and assembled by using the eight doors, so that the operation is complicated and unsafe, and the final test and analysis result is often low due to cold doubt and adsorption of a sample on a vessel, and the device is particularly not suitable for analysis of high-boiling-point organic matters.

At present, a flash evaporation sample injector is generally used in the market for gas-phase and liquid-phase mixed sample injection, but the flash evaporation sample injector in the market at present has the problems of poor sample repeatability, insufficient vaporization, residual pipeline and the like, and is simple in structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flash distillation injector, it is good to have the vaporization homogeneity, and the accuracy is high, can in time clear up the advantage of remaining sample, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a flash evaporation sample injector comprises a case, wherein a high-temperature protection cover and a capillary fixing support are arranged inside the case, a ribbon fixing seat is arranged at the bottom of the case, the upper surface of the ribbon fixing seat is connected with a three-way joint, one side outside the case is provided with a temperature controller, a ball valve is arranged on the case on one side of the temperature controller, a filter is arranged on the case below the ball valve through a joint, a two-way joint is arranged on the other side wall of the case and connected with the three-way joint through a pipeline, a power switch and a power wire are arranged on the case on one side of the two-way joint, a copper column is arranged inside the high-temperature protection cover through screws, a flash evaporation heating block is connected at the upper end of the copper column, a heating wire and a stainless steel pipe are connected at one side of the upper end of the flash evaporation, stainless steel capillary has been run through to the inside of stainless steel two-way, and the one end and the capillary fixed bolster of stainless steel capillary are connected, and stainless steel capillary passes through the cutting ferrule and is connected with the stainless steel two-way, and the outside cover in proper order of heater strip and stainless steel pipe has high temperature sleeve pipe, the fine sleeve pipe of silica gel glass and the flexible network management of weaving, and the flexible network management of weaving runs through quick-witted case to be connected with transmission line, and the flexible network management of weaving passes through the clamp and is connected with quick-witted case.

Preferably, the lower surface of the case is symmetrically connected with rubber bottom corners.

Preferably, a heating rod is arranged inside the flash evaporation heating block.

Preferably, a wiring terminal is arranged in the case on one side of the capillary fixing support, and a solid-state relay is arranged in the case on one side of the wiring terminal.

Preferably, one end of the three-way joint is connected with a high-temperature-resistant glass fiber sleeve.

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

this flash evaporation sample injector, through stainless steel capillary limited resistance, the velocity of flow of control liquid sample, make it get into the flash evaporation heating block in succession, the high temperature is set for to the flash evaporation heating block, make its sample vaporize in the twinkling of an eye, guaranteed the homogeneity of the gasification of liquid sample component and the accuracy that gets into chromatographic analysis, install the ball valve on the quick-witted case of temperature controller one side in addition, the measurement sample passes through the ball valve switching pipeline, reach the pipeline and wash and replace remaining purpose, can in time clear away the remaining sample in the pipeline.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is a left side view of the present invention;

fig. 4 is a right side view of the present invention;

fig. 5 is a top view of the present invention;

fig. 6 is an enlarged view of a of the present invention.

In the figure: 1. a chassis; 2. clamping a hoop; 4. a power line; 5. a high-temperature glass fiber sleeve; 6. a flash evaporation heating block; 7. a high temperature protective cover; 8. heating wires; 9. a stainless steel tube; 10. a temperature sensor; 11. a temperature limit switch; 12. stainless steel two-way; 13. a card sleeve; 14. a high temperature bushing; 15. a stainless steel capillary tube; 16. a silica gel glass fiber sleeve; 17. the network management is woven in a telescopic way; 18. a transfer line; 19. a rubber base angle; 21. a screw; 22. a copper pillar; 23. a binding belt fixing seat; 24. a capillary tube fixing bracket; 25. a three-way joint; 26. a two-way joint; 28. a power switch; 29. a temperature controller; 31. a ball valve; 32. a wiring terminal; 33. a solid state relay; 34. a heating rod; 42. and (3) a filter.

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. 1-6, a flash evaporation sample injector comprises a case 1, wherein the lower surface of the case 1 is symmetrically connected with rubber bottom corners 19 for supporting and stabilizing and achieving a damping effect, a high-temperature protection cover 7 and a capillary fixing support 24 are arranged inside the case 1, a ribbon fixing seat 23 is arranged at the bottom of the case 1, a three-way joint 25 is connected to the upper surface of the ribbon fixing seat 23, a temperature controller 29 is arranged at one side outside the case 1, a ball valve 31 is arranged on the case 1 at one side of the temperature controller 29, a measurement sample switches a pipeline through the ball valve 31 to achieve the purposes of pipeline cleaning and residue replacement, a filter 42 is arranged on the case 1 below the ball valve 31 through a joint, a two-way joint 26 is arranged on the other side wall of the case 1, the two-way joint 26 is connected with the three-way joint 25 through a pipeline, one end of the three-, a power switch 28 and a power cord 4 are installed on the case 1 at one side of the two-way joint 26, a copper column 22 is installed inside the high-temperature protection cover 7 through a screw 21, a flash heating block 6 is connected to the upper end of the copper column 22, a heating rod 34 is arranged inside the flash heating block 6, the flash heating block 6 is rapidly heated through the heating rod 34 to achieve the condition of sample vaporization, a heating wire 8 and a stainless steel tube 9 are connected to one side of the upper end of the flash heating block 6 through a hoop 2, a temperature sensor 10 and a temperature limiting switch 11 are installed on the heating wire 8, a stainless steel two-way 12 is connected to one end of the stainless steel tube 9, a stainless steel capillary tube 15 penetrates through the inside of the stainless steel two-way 12, the stainless steel capillary tube 15 limits resistance, the flow rate of a liquid sample is controlled to enable the constant flow rate to reach the flash heating block 6, and the constant-, the method comprises the steps of instantly vaporizing to ensure that all components in a sample are vaporized uniformly to achieve the purpose of accurate analysis results, wherein one end of a stainless steel capillary tube 15 is connected with a capillary tube fixing support 24, a wiring terminal 32 is arranged in a case 1 on one side of the capillary tube fixing support 24, a solid-state relay 33 is arranged in the case 1 on one side of the wiring terminal 32, the stainless steel capillary tube 15 is connected with a stainless steel two-way 12 through a clamping sleeve 13, a high-temperature sleeve 14, a silica gel glass fiber sleeve 16 and a telescopic woven mesh pipe 17 are sequentially sleeved outside a heating wire 8 and a stainless steel tube 9, the telescopic woven mesh pipe 17 penetrates through the case 1 and is connected with a transmission pipeline 18, the transmission pipeline 18 has a heat tracing function, so that the vaporized sample is detected in a non-condensation state, the accuracy of the analysis results is ensured, and the.

The working process is as follows: the temperature controller 29 rapidly heats the flash evaporation heating block 6 through the heating rod 34 to achieve the condition of sample vaporization, the stainless steel capillary 15 limits resistance, controls the flow rate of the liquid sample to enable the liquid sample to reach the flash evaporation heating block 6 at a constant flow rate, the liquid sample with constant flow is vaporized instantly when reaching the flash evaporation heating block 6 with stable setting, so as to ensure that all components in the sample are vaporized uniformly, the vaporized sample is guided into the transmission pipeline 18 through the stainless steel pipe 9, the transmission pipeline 18 has a heat tracing function, so that the vaporized sample is detected in a non-condensation state, the accuracy of an analysis result is ensured, and the pipeline is switched through the ball valve 31 to measure the sample, so that the purposes of pipeline cleaning and residue replacement are achieved.

In summary, the following steps: this flash evaporation sample injector, through stainless steel capillary 15 limited resistance, the velocity of flow of control liquid sample, make it get into flash evaporation heating block 6 in succession, flash evaporation heating block 6 sets for high temperature, make its sample vaporize in the twinkling of an eye, the homogeneity of the gasification of liquid sample component and the accuracy that gets into chromatographic analysis have been guaranteed, install ball valve 31 on the quick-witted case 1 of temperature control appearance 29 one side in addition, the measurement sample passes through ball valve 31 switching pipeline, reach the pipeline and wash and replace remaining purpose, can in time clear away the remaining sample in the pipeline.

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.

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. A flash evaporation sample injector, includes quick-witted case (1), its characterized in that: the improved multifunctional cable tie-in machine is characterized in that a high-temperature protection cover (7) and a capillary fixing support (24) are arranged inside a machine case (1), a tie fixing seat (23) is arranged at the bottom of the machine case (1), the upper surface of the tie fixing seat (23) is connected with a three-way joint (25), a temperature controller (29) is arranged on one side of the exterior of the machine case (1), a ball valve (31) is arranged on the machine case (1) on one side of the temperature controller (29), a filter (42) is arranged on the machine case (1) below the ball valve (31) through a joint, a two-way joint (26) is arranged on the other side wall of the machine case (1), the two-way joint (26) is connected with the three-way joint (25) through a pipeline, a power switch (28) and a power line (4) are arranged on the machine case (1) on one side of the two-way joint (26), a copper column, one side of the upper end of the flash evaporation heating block (6) is connected with a heating wire (8) and a stainless steel pipe (9) through a hoop (2), the heating wire (8) is provided with a temperature sensor (10) and a temperature limit switch (11), one end of the stainless steel pipe (9) is connected with a stainless steel two-way pipe (12), a stainless steel capillary pipe (15) penetrates through the inside of the stainless steel two-way pipe (12), one end of the stainless steel capillary pipe (15) is connected with a capillary pipe fixing support (24), the stainless steel capillary pipe (15) is connected with the stainless steel two-way pipe (12) through a clamping sleeve (13), the outside of the heating wire (8) and the stainless steel pipe (9) is sequentially sleeved with a high-temperature sleeve pipe (14), a silica gel glass sleeve pipe (16) and a telescopic woven net pipe (17), and the telescopic woven net pipe (, and is connected with a transmission pipeline (18), and the telescopic woven net pipe (17) is connected with the case (1) through a hoop (2).

2. The flash injector of claim 1, in which: the lower surface of the case (1) is symmetrically connected with rubber bottom corners (19).

3. The flash injector of claim 1, in which: and a heating rod (34) is arranged in the flash evaporation heating block (6).

4. The flash injector of claim 1, in which: a wiring terminal (32) is arranged in the case (1) on one side of the capillary tube fixing support (24), and a solid-state relay (33) is installed in the case (1) on one side of the wiring terminal (32).

5. The flash injector of claim 1, in which: one end of the three-way joint (25) is connected with a high-temperature-resistant glass fiber sleeve (5).