A high-sensitivity GC-PDECD gas chromatograph

Abstract

This invention relates to the field of gas chromatography technology, specifically to a high-sensitivity GC-PDECD gas chromatograph, comprising a gas chromatograph body, a display fixedly connected to the surface of the gas chromatograph body, and a heat dissipation structure on the outer wall of the gas chromatograph body. The heat dissipation structure includes an air pump, which is fixedly connected to the gas chromatograph body. By setting up the heat dissipation structure, during sample detection by the gas chromatograph, heat from the hot air is conducted to the inlet pipe, which in turn conducts heat to the heat sink. The heat sink dissipates the heat outward, thereby reducing the temperature of the air in the inlet pipe. The air pump then delivers the air through the exhaust pipe into the gas chromatograph body, further reducing the temperature within the gas chromatograph body. This prevents interruptions during gas chromatograph operation, thereby improving the sensitivity of the gas chromatograph and ultimately increasing detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of gas chromatography technology, and more particularly to a high-sensitivity GC-PDECD gas chromatograph. Background Technology

[0002] Gas chromatograph is a precision analytical instrument based on the principle of gas chromatography separation and analysis. It uses gas as the mobile phase and takes advantage of the differences in the partition coefficients or adsorption capacities of the components in the analyte mixture between the stationary and mobile phases to achieve efficient separation of the components in the chromatographic column. The signals of the separated components are then converted into detectable electrical signals by the matching detectors. After analysis by the data processing system, the qualitative identification and quantitative determination of the components in the sample can be achieved.

[0003] The above-mentioned and existing technologies have the following defects: During the use of a gas chromatograph, the electronic components inside the gas chromatograph generate heat, which remains inside the casing and cannot be dissipated. When the gas chromatograph is working continuously, the temperature inside the gas chromatograph is prone to become too high, causing it to malfunction and potentially leading to lag during operation.

[0004] Therefore, a high-sensitivity GC-PDECD gas chromatograph is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the drawback of the gas chromatograph being prone to overheating and malfunctioning, and to propose a high-sensitivity GC-PDECD gas chromatograph.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-sensitivity GC-PDECD gas chromatograph, comprising a gas chromatograph body, a display fixedly connected to the surface of the gas chromatograph body, a heat dissipation structure provided on the outer wall of the gas chromatograph body, the heat dissipation structure including an air pump, the air pump being fixedly connected to the gas chromatograph body, the air pump having an air inlet end fixedly connected to and connected to an air inlet pipe, the air inlet pipe being fixedly connected to and connected to the gas chromatograph body, the air pump having an exhaust end fixedly connected to and connected to an exhaust pipe, the exhaust pipe being fixedly connected to and connected to the gas chromatograph body, and a plurality of heat sinks fixedly connected to the outer wall of the air inlet pipe.

[0007] The effect achieved by the above components is as follows: by setting up a heat dissipation structure, during the process of gas chromatograph detecting samples, the heat in the hot air is conducted to the air inlet pipe, the air inlet pipe conducts the heat to the heat sink, and the heat sink can transfer the heat outward, thereby reducing the temperature of the air in the air inlet pipe. Then, the air pump delivers the air to the gas chromatograph body through the exhaust pipe, thereby reducing the temperature inside the gas chromatograph body, ensuring that the gas chromatograph body can continuously perform detection work, and thus improving the detection efficiency.

[0008] Preferably, a semiconductor cooling ring is fixedly connected to the arc surface of the exhaust pipe.

[0009] The effect achieved by the above components is as follows: when the semiconductor cooling ring is activated, the semiconductor cooling chip will reduce the temperature of the air inlet pipe, thereby cooling the air through the air inlet pipe, and further improving the heat dissipation effect on the gas chromatograph body.

[0010] Preferably, a heat insulation sleeve is fixedly connected to the arc surface of the exhaust pipe, and the heat insulation sleeve is fitted onto the surface of the semiconductor cooling ring.

[0011] The effect achieved by the above components is that the heat insulation sleeve can reduce the impact of external heat on the cooling effect of the semiconductor refrigeration chip.

[0012] Preferably, an electric actuator is fixedly connected to the side wall of the gas chromatograph body, a connecting plate is fixedly connected to the output end of the electric actuator, and a plurality of scrapers are fixedly connected to the surface of the connecting plate, with one end of the scraper having a bent structure.

[0013] The effect achieved by the above components is as follows: when the electric actuator is turned on, the extension of the output end of the electric actuator will cause the connecting plate to slide. The movement of the connecting plate will cause the scraper to move. When the scraper slides against the surface of the intake pipe and the heat sink, the scraper can scrape off the dust attached to the surface of the heat sink. In addition, the bent section of the scraper can better clean the connection between the intake pipe and the heat sink, thus making it easier to wipe and clean the heat sink with a cloth later.

[0014] Preferably, a round rod is fixedly connected to the side wall of the gas chromatograph body, and the connecting plate is slidably connected to the round rod.

[0015] The effect achieved by the above components is that the round rod restricts the movement path of the limiting rod, thereby restricting the movement path of the scraper.

[0016] Preferably, the lower surface of the gas chromatograph body is provided with an adjustment structure, the adjustment structure including a mounting plate, the mounting plate being rotatably connected to the gas chromatograph body, a fixing frame being fixedly connected to the surface of the mounting plate, a top plate being slidably connected to the inner wall of the fixing frame, and a bolt being threadedly connected to the fixing frame, the bolt passing through the fixing frame and abutting against the surface of the top plate.

[0017] The effect achieved by the above components is that, by setting the adjustment structure, when the detection angle of the gas chromatograph body is adjusted, the gas chromatograph body can detect the sample from a suitable angle, thereby further improving the detection accuracy.

[0018] Preferably, a spring is fixedly connected to the lower surface of the top plate, and one end of the spring is fixedly connected to the mounting plate.

[0019] The effect achieved by the above components is that the spring can use its own elastic force to move the top plate upward, so that the top plate can continuously press against the lower surface of the gas chromatograph body.

[0020] Preferably, a stop block is fixedly connected to the side wall of the top plate.

[0021] The effect achieved by the above components is that, during the upward sliding of the top plate, the stop can limit the movement distance of the top plate, thereby preventing the top plate from losing contact with the fixed frame.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In this invention, by setting up a heat dissipation structure, during the process of gas chromatograph detecting samples, the heat in the hot air is conducted to the air inlet pipe, which in turn conducts the heat to the heat sink. The heat sink can transfer the heat outward, thereby reducing the temperature of the air in the air inlet pipe. Then, the air pump delivers the air to the gas chromatograph body through the exhaust pipe, thereby reducing the temperature inside the gas chromatograph body. This avoids jamming during the operation of the gas chromatograph, thereby improving the sensitivity of the gas chromatograph operation and thus improving the detection efficiency.

[0023] In this invention, by setting an adjustment structure, when the detection angle of the gas chromatograph body is adjusted, the gas chromatograph body can detect the sample from a suitable angle, thereby further improving the detection accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the gas chromatograph body of the present invention; Figure 3 This is a schematic diagram of the air pump part of the present invention; Figure 4 This is a schematic diagram of the structure of the electric actuator of the present invention.

[0025] Legend: 1. Gas chromatograph body; 2. Display; 3. Heat dissipation structure; 301. Gas pump; 302. Inlet pipe; 303. Exhaust pipe; 304. Heat sink; 305. Semiconductor cooling ring; 306. Heat insulation sleeve; 307. Electric actuator; 308. Connecting plate; 309. Scraper; 310. Round rod; 4. Adjustment structure; 41. Mounting plate; 42. Fixing frame; 43. Top plate; 44. Bolt; 45. Spring; 46. Stop block. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0028] like Figures 1-4 As shown, the present invention provides a high-sensitivity GC-PDECD gas chromatograph, including a gas chromatograph body 1, a display 2 fixedly connected to the surface of the gas chromatograph body 1, a heat dissipation structure 3 on the outer wall of the gas chromatograph body 1, and an adjustment structure 4 on the lower surface of the gas chromatograph body 1.

[0029] The specific settings and functions of its heat dissipation structure 3 and adjustment structure 4 will be discussed below.

[0030] like Figure 3 and Figure 4As shown, the heat dissipation structure 3 includes an air pump 301, which is fixedly connected to the gas chromatograph body 1. The air pump 301 has an air inlet end fixedly connected to an air inlet pipe 302, which is also fixedly connected to the gas chromatograph body 1. The air pump 301 also has an exhaust end fixedly connected to an exhaust pipe 303, which is also fixedly connected to the gas chromatograph body 1. Several heat sinks 304 are fixedly connected to the outer wall of the air inlet pipe 302. A semiconductor cooling ring 305 is fixedly connected to the arc surface of the exhaust pipe 303. When the semiconductor cooling ring 305 is turned on, the semiconductor cooling chip lowers the temperature of the air inlet pipe 302, thereby cooling the air through the air inlet pipe 302 and further improving the heat dissipation effect on the gas chromatograph body 1. A heat insulation sleeve 306 is fixedly connected to the arc surface of the exhaust pipe 303. The heat insulation sleeve 306 is fitted onto the surface of the semiconductor cooling ring 305, reducing the impact of external heat on the cooling effect of the semiconductor cooling chip. An electric actuator 307 is fixedly connected to the side wall of the chromatograph body 1. A connecting plate 308 is fixedly connected to the output end of the electric actuator 307. Several scrapers 309 are fixedly connected to the surface of the connecting plate 308. One end of the scraper 309 is bent. When the electric actuator 307 is turned on, the output end of the electric actuator 307 extends, which drives the connecting plate 308 to slide. The movement of the connecting plate 308 drives the scraper 309 to move. When the scraper 309 slides against the surface of the inlet pipe 302 and the heat sink 304... The scraper 309 can scrape off the dust attached to the surface of the heat sink 304, and the bent section of the scraper 309 can better clean the connection between the air inlet pipe 302 and the heat sink 304, so that the heat sink 304 can be wiped clean with a cloth later. A round rod 310 is fixedly connected to the side wall of the gas chromatograph body 1. The connecting plate 308 is slidably connected to the round rod 310. The round rod 310 can limit the movement path of the limit rod, thereby limiting the movement path of the scraper 309.

[0031] like Figure 2 As shown, the adjustment structure 4 includes a mounting plate 41, which is rotatably connected to the gas chromatograph body 1. A fixing frame 42 is fixedly connected to the surface of the mounting plate 41, and a top plate 43 is slidably connected to the inner wall of the fixing frame 42. A bolt 44 is threaded into the fixing frame 42, passing through the fixing frame 42 and abutting against the surface of the top plate 43. A spring 45 is fixedly connected to the lower surface of the top plate 43. One end of the spring 45 is fixedly connected to the mounting plate 41, and the spring 45 can move the top plate 43 upward by its own elastic force, so that the top plate 43 can continuously abut against the lower surface of the gas chromatograph body 1. A stop block 46 is fixedly connected to the side wall of the top plate 43. During the upward sliding process of the top plate 43, the stop block 46 can limit the movement distance of the top plate 43, thereby preventing the top plate 43 from losing contact with the fixing frame 42.

[0032] The overall working principle is as follows: During sample detection by the gas chromatograph, the air pump 301 is turned on, and the air inlet of the air pump 301 begins to draw in air. Hot air from the gas chromatograph body 1 flows into the inlet pipe 302, where heat is transferred to the inlet pipe 302. The inlet pipe 302 then transfers the heat to the heat sink 304, which dissipates the heat, thus lowering the temperature of the air in the inlet pipe 302. The air pump 301 then delivers the air to the gas chromatograph body 1 through the exhaust pipe 303, further reducing the temperature inside the gas chromatograph body 1 and ensuring continuous operation, thereby improving detection efficiency. Simultaneously, the semiconductor cooling ring 305 is activated, which lowers the temperature of the inlet pipe 302, further cooling the air and improving its efficiency. To further improve the heat dissipation effect on the gas chromatograph body 1, the heat insulation sleeve 306 can reduce the impact of external heat on the cooling effect of the semiconductor cooling chip. Before wiping the foreign matter attached to the surface of the heat sink 304, the electric push rod 307 is turned on. The extension of the output end of the electric push rod 307 will drive the connecting plate 308 to slide along the arc surface of the round rod 310. The round rod 310 will limit the movement path of the limit rod, thereby limiting the movement path of the scraper 309. The movement of the connecting plate 308 will drive the scraper 309 to move. When the scraper 309 slides against the surface of the air inlet pipe 302 and the heat sink 304, the scraper 309 can scrape off the dust attached to the surface of the heat sink 304. In addition, the bent section of the scraper 309 can better clean the connection between the air inlet pipe 302 and the heat sink 304, so as to facilitate the subsequent wiping and cleaning of the heat sink 304 with a cloth.

[0033] When adjusting the detection angle of the gas chromatograph body, rotating bolt 44 causes it to disengage from top plate 43 via its threaded movement. Rotating the gas chromatograph body 1 then compresses one top plate 43. Spring 45 uses its own elasticity to move top plate 43 upwards, allowing the other top plate 43 to continuously press against the lower surface of the gas chromatograph body 1. During the upward sliding of top plate 43, stop block 46 limits its movement, preventing it from disengaging from the fixed frame 42. After adjustment, rotating bolt 44 in the opposite direction restricts the position of top plate 43, thus limiting the position of the gas chromatograph body 1. This allows the gas chromatograph body 1 to detect the sample from a suitable angle, further improving detection accuracy.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A high-sensitivity GC-PDECD gas chromatograph, comprising a gas chromatograph body (1), characterized in that: A display (2) is fixedly connected to the surface of the gas chromatograph body (1). A heat dissipation structure (3) is provided on the outer wall of the gas chromatograph body (1). The heat dissipation structure (3) includes an air pump (301). The air pump (301) is fixedly connected to the gas chromatograph body (1). The air inlet end of the air pump (301) is fixed and connected to an air inlet pipe (302). The air inlet pipe (302) is fixedly connected to the gas chromatograph body (1). The exhaust end of the air pump (301) is fixed and connected to an exhaust pipe (303). The exhaust pipe (303) is fixedly connected to the gas chromatograph body (1). Several heat sinks (304) are fixedly connected to the outer wall of the air inlet pipe (302).

2. The high-sensitivity GC-PDECD gas chromatograph according to claim 1, characterized in that: The arc surface of the exhaust pipe (303) is fixedly connected to a semiconductor cooling ring (305).

3. The high-sensitivity GC-PDECD gas chromatograph according to claim 2, characterized in that: The arc surface of the exhaust pipe (303) is fixedly connected to a heat insulation sleeve (306), which is sleeved on the surface of the semiconductor cooling ring (305).

4. The high-sensitivity GC-PDECD gas chromatograph according to claim 1, characterized in that: An electric actuator (307) is fixedly connected to the side wall of the gas chromatograph body (1). A connecting plate (308) is fixedly connected to the output end of the electric actuator (307). Several scrapers (309) are fixedly connected to the surface of the connecting plate (308). One end of the scraper (309) is bent.

5. A high-sensitivity GC-PDECD gas chromatograph according to claim 4, characterized in that: A round rod (310) is fixedly connected to the side wall of the gas chromatograph body (1), and the connecting plate (308) is slidably connected to the round rod (310).

6. The high-sensitivity GC-PDECD gas chromatograph according to claim 1, characterized in that: The lower surface of the gas chromatograph body (1) is provided with an adjustment structure (4). The adjustment structure (4) includes a mounting plate (41). The mounting plate (41) is rotatably connected to the gas chromatograph body (1). A fixing frame (42) is fixedly connected to the surface of the mounting plate (41). A top plate (43) is slidably connected to the inner wall of the fixing frame (42). A bolt (44) is threadedly connected to the fixing frame (42). The bolt (44) passes through the fixing frame (42) and abuts against the surface of the top plate (43).

7. A high-sensitivity GC-PDECD gas chromatograph according to claim 6, characterized in that: A spring (45) is fixedly connected to the lower surface of the top plate (43), and one end of the spring (45) is fixedly connected to the mounting plate (41).

8. A high-sensitivity GC-PDECD gas chromatograph according to claim 6, characterized in that: The top plate (43) has a stop block (46) fixedly connected to its side wall.

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