CN115112466A - Cooling structure and analytical instrument - Google Patents
Cooling structure and analytical instrument Download PDFInfo
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- CN115112466A CN115112466A CN202210799610.7A CN202210799610A CN115112466A CN 115112466 A CN115112466 A CN 115112466A CN 202210799610 A CN202210799610 A CN 202210799610A CN 115112466 A CN115112466 A CN 115112466A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
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Abstract
The invention relates to a cooling structure and an analytical instrument. The cooling structure comprises an input assembly, a shell and a cooling piece, wherein an air inlet channel is formed on the input assembly and used for exciting the sample gas so as to generate excited sample gas; an accommodating cavity is formed in the shell, the input assembly penetrates through the accommodating cavity, an exhaust port is formed in the shell, the air inlet channel is communicated with the exhaust port through the accommodating cavity, and the exhaust port is used for exhausting sample gas; the cooling piece is arranged in the accommodating cavity and sleeved on the input assembly, and the cooling piece can cool the excited sample gas in the gas inlet channel. The sample gas is in the gas inlet channel, generates excited state sample gas and generates a large amount of heat to enter the accommodating cavity through the gas inlet channel. The cooling member cools the input assembly. Avoid high temperature to melt the input assembly. And then reduce cooling structure's whole use cost, guarantee the cooling effect, further guarantee analytical instrument's normal use and working life.
Description
Technical Field
The invention relates to the technical field of detection and analysis equipment, in particular to a cooling structure and an analysis instrument.
Background
The inductively coupled plasma is a kind of electric charge discharge, rather than chemical flame, in which high frequency current generates high frequency electromagnetic field via induction coil to make the working gas form plasma and present flame-shaped discharge, and the flame temperature is 6000-10000K. The sample is carried into the torch by the carrier gas and is vaporized, decomposed, atomized and ionized. Is an excellent excitation light source and ion source.
Inductively coupled plasma is a superior source of excitation and ions, and samples are carried into the plasma torch by a carrier gas and are vaporized, decomposed, atomized, and ionized. Inductively coupled plasma ionization sources are typically equipped with either a spectral detector or a mass spectral detector. Both the two can simultaneously analyze a plurality of samples, and has high precision, good accuracy and wide application range. However, the existing inductively coupled plasma cooling structure has high overall use cost, and secondary discharge interference exists in the cooling process, so that the cooling effect is poor.
Disclosure of Invention
In view of the above, it is desirable to provide a cooling structure and an analysis apparatus having a better cooling effect.
A cooling structure comprises an input assembly, a shell and a cooling piece, wherein an air inlet channel is formed on the input assembly and used for exciting a sample gas to generate an excited sample gas; an accommodating cavity is formed in the shell, the input assembly penetrates through the accommodating cavity, an exhaust port is formed in the shell, the air inlet channel is communicated with the exhaust port through the accommodating cavity, and the exhaust port is used for exhausting the sample gas; the cooling piece is arranged in the accommodating cavity and sleeved on the input assembly, and the cooling piece can cool the excited sample gas in the gas inlet channel.
In one embodiment, the cooling element is helically disposed around the outer wall of the input assembly.
In one embodiment, the housing further defines a first air inlet hole, the first air inlet hole is spaced apart from the air outlet and is communicated with the accommodating cavity, and the first air inlet hole is used for inputting cooling air into the accommodating cavity.
In one embodiment, the housing further defines a liquid inlet and a liquid outlet, the liquid inlet is used for inputting cooling liquid, the liquid outlet is used for flowing out cooling liquid, the liquid inlet and the liquid outlet are spaced apart from each other, a cooling channel is formed in the cooling element, and two ends of the cooling channel are respectively communicated with the liquid inlet and the liquid outlet.
In one embodiment, when the liquid inlet and the liquid outlet are of metal structures, the liquid outlet is used for connecting a grounding wire.
In one embodiment, the cooling member is a metallic structural member.
In one embodiment, the input assembly comprises an auxiliary piece and an input piece, an auxiliary cavity is formed in the auxiliary piece, the input piece is arranged in the auxiliary cavity in a penetrating mode, the air inlet channel is formed in the input piece and communicated with the accommodating cavity through the auxiliary cavity, and the cooling piece is sleeved on the auxiliary piece.
In one embodiment, the auxiliary member is provided with a second air inlet hole, the second air inlet hole is communicated with the auxiliary cavity, and the second air inlet hole is used for inputting cooling air into the auxiliary cavity.
In one embodiment, one end of the auxiliary member is inserted into the accommodating cavity, the other end of the auxiliary member is located outside the accommodating cavity, and the second air inlet hole is formed in the other end of the auxiliary member.
In one embodiment, the auxiliary member is a tubular structure, and the diameter of one end of the tubular auxiliary member near the exhaust port tends to increase towards the exhaust port.
An analytical instrument comprises a machine body and a cooling structure as described above, wherein a mounting cavity is formed in the machine body; the cooling structure is mounted within the mounting cavity.
The cooling structure and the analysis instrument input the sample gas into the gas inlet channel to generate the excited state sample gas. During the process of generating a large amount of excited-state sample gas, a large amount of heat is generated and enters the accommodating cavity through the gas inlet channel. The cooling piece in the holding intracavity cools off the input module and the excited state sample gas in the inlet channel, avoids high temperature to melt the input module. And then reduce cooling structure's whole use cost, guarantee the cooling effect, further guarantee analytical instrument's normal use and working life.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cooling structure in an embodiment.
The elements in the figure are labeled as follows:
10. a cooling structure; 100. an input component; 110. an input member; 111. an input channel; 120. an auxiliary member; 121. an auxiliary chamber; 122. a second air intake hole; 200. a housing; 210. an accommodating cavity; 220. an exhaust port; 230. a first air intake hole; 240. a liquid inlet; 250. a liquid outlet; 300. a cooling member; 310. a cooling channel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1, an analysis instrument in one embodiment includes a body having a mounting cavity formed therein and a cooling structure 10; the cooling structure 10 is mounted in the mounting cavity. The cooling structure 10 includes an input assembly 100, a housing 200, and a cooling member 300, wherein the input assembly 100 has a gas inlet channel formed thereon for exciting a sample gas to generate an excited sample gas; a containing cavity 210 is formed in the housing 200, the input assembly 100 is inserted into the containing cavity 210, an exhaust port 220 is formed on the housing 200, the air inlet channel is communicated with the exhaust port 220 through the containing cavity 210, and the exhaust port 220 is used for exhausting the sample gas; the cooling member 300 is disposed in the accommodating cavity 210 and sleeved on the input assembly 100, and the cooling member 300 can cool the excited sample gas in the gas inlet channel.
And inputting the sample gas into the gas inlet channel to generate excited state sample gas. During the process of generating a large amount of excited-state sample gas, a large amount of heat is generated and enters the accommodating chamber 210 through the gas inlet channel. The cooling member 300 in the accommodating chamber 210 cools the input assembly 100 and the excited sample gas in the gas inlet channel, so as to prevent the input assembly 100 from being melted by high temperature. Thereby reducing the overall use cost of the cooling structure 10, ensuring the cooling effect, and further ensuring the normal use and the service life of the analysis instrument.
Specifically, a plasma torch is provided in the gas inlet channel, which can evaporate, decompose, atomize and ionize the sample gas to realize the excited state of the sample gas.
In one embodiment, the cooling element 300 is helically disposed around the outer wall of the input assembly 100. The shape of the cooling member 300 is a spiral shape, and the spiral cooling member 300 is sleeved on the outer wall of the input assembly 100, or the input assembly 100 can be inserted into the spiral cooling member 300. The spiral cooling member 300 can increase the contact area with the outer wall of the input assembly 100, and simultaneously, the input assembly 100 can be cooled in a surrounding mode, and the cooling is uniform. Further enhancing the cooling effect of the cooling member 300 on the input assembly 100. Thereby improving the normal use and the working life of the analytical instrument.
In one embodiment, the housing 200 further defines a first air inlet hole 230, the first air inlet hole 230 is spaced apart from the air outlet 220 and is communicated with the accommodating chamber 210, and the first air inlet hole 230 is used for inputting cooling air into the accommodating chamber 210. Therefore, the cooling gas can further cool the input assembly 100 in the accommodating cavity 210, the refrigeration effect of the cooling structure 10 is further ensured, and the normal use and the service life of the analysis instrument are improved. Specifically, the cooling gas may be cooling argon gas, and the cooling argon gas enters the accommodating chamber 210 from the first gas inlet hole 230 to provide ionized gas and perform a cooling function. Protecting the input assembly 100 from high temperature melting.
In one embodiment, the housing 200 further defines a liquid inlet 240 and a liquid outlet 250, the liquid inlet 240 is used for inputting a cooling liquid, the liquid outlet 250 is used for discharging the cooling liquid, the liquid inlet 240 and the liquid outlet 250 are spaced apart from each other, a cooling channel 310 is formed in the cooling member 300, and two ends of the cooling channel 310 are respectively communicated with the liquid inlet 240 and the liquid outlet 250. The cooling fluid is supplied through an inlet 240 and discharged through a cooling channel 310 through an outlet 250. The cooling liquid can exchange heat with the input assembly 100 in the cooling channel 310, and then the heat generated by the input assembly 100 is taken away through the fluidity of the cooling liquid, so that the cooling effect is ensured. In the present embodiment, the height of the liquid inlet port 240 in the vertical direction is higher than the height of the liquid outlet port 250 in the vertical direction. The cooling liquid accelerates the flow velocity under the action of gravity, so that the cooling liquid can be quickly replaced to take away most heat, and the cooling effect is ensured.
Meanwhile, the spiral cooling element 300 is matched, so that the spiral structure can prolong the circulation path of the cooling liquid, and the cooling liquid can be ensured to have enough time to fully perform heat exchange. The shape of the cooling member 300 may be other shapes as long as it can be sleeved on the input assembly 100 and can ensure the heat exchange efficiency between the cooling liquid and the input assembly 100.
In one embodiment, the number of the cooling members 300 is at least two, and at least two cooling members 300 are sleeved on the input assembly 100. At least two cooling elements 300 are arranged interlaced with each other. Or may be disposed in parallel or stacked to each other, so as to further ensure the cooling effect of the cooling structure 10. If at least two cooling members 300 are interlaced with each other, a mesh-like cooling member 300 can be formed.
In one embodiment, the height of the inlet port 240 in the vertical direction is lower than or equal to the height of the outlet port 250 in the vertical direction. By this arrangement, the flow rate of the cooling fluid in the cooling passage 310 can be reduced, and it is ensured that the cooling fluid can sufficiently exchange heat with the input member 100 in the cooling passage 310. Further ensuring the cooling effect of the cooling member 300.
The cooling liquid is used in cooperation with the cooling gas to further ensure the reliability and the practicability of the cooling structure 10. Realize input module 100 to the cooling through the coolant liquid in the cooling piece 300, use the coolant liquid can reduce the use to cooling argon gas, reduce the flow requirement of cooling argon gas, and then reduce the use cost of cooling argon gas.
In one embodiment, when the inlet 240 and the outlet 250 are metallic structures, the outlet 250 is connected to a ground line. Thereby serving to shield the discharge of electric charges and improving the safety and reliability of the cooling structure 10.
In other embodiments, the inlet port 240 and the outlet port 250 may be of quartz or ceramic construction.
In one embodiment, the cooling member 300 is a metallic structural member. Further, the cooling member 300 may be a hollow metal copper tube, which has the characteristics of good electrical conductivity and thermal conductivity, and is a main material of a conductive fitting and a heat dissipation fitting of an electronic product. The copper pipe has strong corrosion resistance, is not easy to oxidize, does not easily react with some liquid substances, and is easy to bend and model. Alternatively, the cooling member 300 may be other metal structural members capable of facilitating heat exchange. As long as it is not corroded by the coolant while securing the heat exchange rate.
In one embodiment, the input assembly 100 includes an auxiliary member 120 and an input member 110, an auxiliary cavity 121 is formed in the auxiliary member 120, the input member 110 is inserted into the auxiliary cavity 121, the input member 110 has the air inlet channel formed therein, the air inlet channel is communicated with the accommodating cavity 210 through the auxiliary cavity 121, and the cooling member 300 is sleeved on the auxiliary member 120. Furthermore, a second air inlet hole 122 is formed in the auxiliary member 120, the second air inlet hole 122 is communicated with the auxiliary cavity 121, and the second air inlet hole 122 is used for inputting cooling air into the auxiliary cavity 121.
The input 110 is capable of vaporizing, decomposing, atomizing and ionizing the sample gas to achieve an excited state of the sample gas. The cooling gas is conveyed into the auxiliary cavity 121, heat generated on the input member 110 can be exchanged by the cooling gas, the stable structure of the input member 110 is guaranteed not to be melted by high temperature, meanwhile, the cooling member 300 is sleeved on the auxiliary member 120, the cooling member 300 can further cool the auxiliary member 120, and the structural stability of the auxiliary member 120 is guaranteed. The heat exchange of the cooling gas in the auxiliary cavity 121 can be indirectly carried out, and the temperature and the heat exchange efficiency of the cooling gas are ensured. Cooling the cooling gas with cooling piece 300 can reduce the use of cooling argon, reduce the flow requirement of cooling argon, and then reduce the use cost of cooling argon. Meanwhile, cooling gas is input into the accommodating cavity 210 through the first air inlet holes 230, and the accommodating cavity 210 is communicated with the auxiliary cavity 121, so that sufficient cooling gas is available in the whole cooling structure 10, and heat exchange of the input member 110 is guaranteed. However, after the cooling gas in the auxiliary chamber 121 is heated by heat exchange, the cooling member 300 can cool the cooling gas in the auxiliary chamber 121, and the cooling gas in the accommodating chamber 210 can exchange the cooling gas in the auxiliary chamber 121. Further ensuring the cooling effect on the input member 110 and avoiding the input member 110 from being melted down due to over-high temperature. Ensure the working specification and the use efficiency of the analytical instrument. The cooling material 300 is disposed in the housing chamber 210, and the cooling material 300 may exchange heat with the cooling gas in the housing chamber 210. The practicality and reliability of the cooling structure 10 are further improved.
In one embodiment, one end of the auxiliary 120 is inserted into the accommodating cavity 210, the other end of the auxiliary 120 is located outside the accommodating cavity 210, and the second air inlet 122 is opened at the other end of the auxiliary 120. Therefore, when the cooling gas is introduced into the second gas inlet holes 122, the influence of heat generated by the input member 110 is not easily received, and the quality of the cooling gas is ensured. Meanwhile, the cooling gas is conveniently filled in the second air inlet hole 122 by the working personnel for installation and maintenance operation. Further improving the practicality and structural rationality of the cooling structure 10.
In one embodiment, the auxiliary member 120 is a tubular structure, and the diameter of the end of the tubular auxiliary member 120 near the exhaust port 220 tends to increase toward the exhaust port 220. The inner diameter of the auxiliary chamber 121 tends to increase in size toward the exhaust port 220. Specifically, the end of the auxiliary member 120 near the exhaust port 220 is flared. The efficiency of supplementary chamber 121 and holding chamber 210 intercommunication is improved, guarantees simultaneously that the sample gas of excited state can flow to gas vent 220 fully, guarantees analytical instrument's work efficiency.
In one embodiment, the spiral cooling element 300 is sleeved on the auxiliary element 120, and the inner diameter of the cooling element 300 increases with the diameter of the auxiliary element 120. It is ensured that the cooling member 300 can effectively cool the auxiliary member 120.
In one embodiment, a portion of the input member 110 is disposed through the auxiliary member 120, and a portion of the auxiliary member 120 is disposed through the housing 200. The first air inlet holes 230 and the liquid inlet holes 240 are spaced apart and located on the same side of the housing 200. When the auxiliary member 120 is inserted into the housing 200, the second air inlet hole 122, the first air inlet hole 230 and the liquid inlet 240 are located on the same side. Therefore, the operation, the inspection and the later maintenance of workers are convenient. The outlet port 250 is located on the opposite side of the housing 200 from the inlet port 240. The exhaust port 220 is located between the inlet port 240 and the outlet port 250.
The inductively coupled plasma is formed by high-frequency current through an induction coil to generate a high-frequency electromagnetic field, so that working gas forms plasma and presents flame-shaped discharge, the temperature range of the flame is 6000K to 10000K, and the plasma is charge discharge instead of chemical flame. The sample is carried into the torch by the carrier gas and is vaporized, decomposed, atomized and ionized. Is an excellent excitation light source and ion source.
Inductively coupled plasma is a superior source of excitation and ions, and samples carried into the plasma torch by a carrier gas are vaporized, decomposed, atomized, and ionized. Inductively coupled plasma ionization sources are typically equipped with either a spectral detector or a mass spectral detector. Both the two can simultaneously analyze a plurality of samples, and has high precision, good accuracy and wide application range. Due to the differences in detectors, these two detection means are somewhat different in use: the inductively coupled plasma spectrometer has high sensitivity, low detection limit, wider dynamic linear range and multi-element simultaneous analysis, is usually used for qualitative and quantitative analysis of trace and partial macroelements, and has wider application industry range; the inductively coupled plasma mass spectrometer has qualitative and quantitative analysis capability of element, isotope, morphological analysis and the like, and the detection lower limit level is superior to that of the inductively coupled plasma mass spectrometer. Because of its convenience, rapidness, high precision and high accuracy, it has wide application in formula analysis.
There are four main uses of inductively coupled plasma: the method is used for plasma spectrum diagnosis, inductively coupled plasma mass spectrometry, reactive ion etching and vapor deposition film technology. The inductively coupled plasma is used as an excitation light source for an inductively coupled plasma spectrometer and can be used for qualitative and quantitative analysis of trace and partial macroelements. The inductively coupled plasma is used as an ion source for an inductively coupled plasma mass spectrometer and can be used for qualitative and quantitative analysis of elements, isotopes, morphological analysis and the like. Inductively coupled plasma is used for fine etch as well as compound semiconductor etch. Inductively coupled plasma is used in chemical vapor deposition thin film technology.
The cooling structure 10 in the above embodiment is designed by the hollow spiral cooling member 300, and can be applied to inductively coupled plasma spectrometers, inductively coupled plasma mass spectrometers, and the related fields of reactive ion etching and vapor deposition of thin films. The cooling liquid can be added into the hollow part of the cooling element 300 to achieve the cooling effect, and the flow rate of cooling gas, such as argon, can be reduced, so that the use cost of the argon is reduced. In mass spectrum application, the spiral design can be replaced by metal, the existing design scheme of interfering ion shielding can be replaced, and the design process and hardware cost are greatly reduced.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may directly conflict with the first and second features, or the first and second features may indirectly conflict with each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cooling structure, characterized by comprising:
the gas-liquid separation device comprises an input assembly, a gas-liquid separation device and a gas-liquid separation device, wherein a gas inlet channel is formed on the input assembly and is used for exciting a sample gas to generate an excited-state sample gas;
the input assembly penetrates through the accommodating cavity, an exhaust port is formed in the shell, the air inlet channel is communicated with the exhaust port through the accommodating cavity, and the exhaust port is used for exhausting the sample gas; and
the cooling piece is arranged in the accommodating cavity and sleeved on the input assembly, and can cool the excited sample gas in the gas inlet channel.
2. The cooling structure of claim 1, wherein the cooling element is helically disposed over the outer wall of the input assembly.
3. The cooling structure of claim 1, wherein the housing further defines a first air inlet, the first air inlet and the air outlet are spaced apart from each other and are communicated with the accommodating chamber, and the first air inlet is used for inputting cooling air into the accommodating chamber.
4. The cooling structure according to any one of claims 1 to 3, wherein the housing further has a liquid inlet and a liquid outlet, the liquid inlet is used for inputting cooling liquid, the liquid outlet is used for discharging cooling liquid, the liquid inlet and the liquid outlet are spaced apart, a cooling channel is formed in the cooling member, and two ends of the cooling channel are respectively communicated with the liquid inlet and the liquid outlet.
5. The cooling structure as claimed in claim 4, wherein the liquid outlet is used for connecting a ground wire when the liquid inlet and the liquid outlet are of metal structure; and/or
The cooling piece is a metal structural piece.
6. The cooling structure according to any one of claims 1 to 3, wherein the input assembly includes an auxiliary member and an input member, an auxiliary cavity is formed in the auxiliary member, the input member is inserted into the auxiliary cavity, the air intake passage is formed in the input member, the air intake passage is communicated with the accommodating cavity through the auxiliary cavity, and the cooling member is sleeved on the auxiliary member.
7. The cooling structure of claim 6, wherein the auxiliary member is provided with a second air inlet hole, the second air inlet hole is communicated with the auxiliary cavity, and the second air inlet hole is used for inputting cooling air into the auxiliary cavity.
8. The cooling structure according to claim 7, wherein one end of the auxiliary member is inserted into the accommodating chamber, the other end of the auxiliary member is located outside the accommodating chamber, and the second air inlet hole is opened at the other end of the auxiliary member.
9. The cooling structure according to claim 8, wherein the auxiliary member is a tubular structure, and a diameter of an end of the tubular auxiliary member near the exhaust port tends to increase toward the exhaust port.
10. An analytical instrument, said analytical instrument comprising:
the device comprises a machine body, a bearing, a connecting piece and a connecting piece, wherein a mounting cavity is formed in the machine body; and
the cooling structure of any one of claims 1-9, mounted within the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210799610.7A CN115112466A (en) | 2022-07-08 | 2022-07-08 | Cooling structure and analytical instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210799610.7A CN115112466A (en) | 2022-07-08 | 2022-07-08 | Cooling structure and analytical instrument |
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| CN115112466A true CN115112466A (en) | 2022-09-27 |
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| CN202210799610.7A Pending CN115112466A (en) | 2022-07-08 | 2022-07-08 | Cooling structure and analytical instrument |
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