Heating device of particle size spectrometer

Abstract

The utility model relates to a heating device of a particle size spectrometer, which comprises a shell provided with a bottom plate and a side wall, and the side wall is provided with a positioning hole and an open slot; the heat insulation cover is detachably connected with the upper edge of the side wall; the heating assembly is arranged on the bottom plate, the heating assembly comprises a spiral pipe and two heating pieces, the spiral pipe is located between the two heating pieces and provided with an air inlet and an air outlet, the air inlet is formed in the positioning hole, and the air outlet is formed in the open groove. According to the utility model, air is preheated before entering the particle size spectrometer, so that the detection precision of the particle size spectrometer for detecting the concentration of particulate matters is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air quality detection, and in particular relates to a heating device for a particle size spectrometer. Background Art

[0002] With the development of society, environmental problems are becoming increasingly prominent. Air pollution is one of them. After air pollution, it is eventually ingested by the human body through various channels, affecting human health. At present, my country's monitoring of particulate matter concentration mainly detects PM10 and PM2.5. PM10 is particulate matter less than or equal to 10μm, and PM2.5 is particulate matter less than or equal to 2.5μm.

[0003] In the existing technology, particulate matter detection is mostly done by directly sampling the air. However, when there is a lot of moisture in the air, the humidity will cause the particulate matter sensor to detect inaccurate values, affecting the particulate matter detection results, and there are technical problems that affect the detection accuracy of the equipment. Utility Model Content

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a heating device for a particle size spectrometer to solve one or more of the above problems existing in the prior art.

[0005] The purpose of this utility model is achieved in this way:

[0006] A heating device for a particle size spectrometer, comprising:

[0007] The housing comprises a bottom plate and side walls, wherein the side walls are provided with positioning holes and opening slots;

[0008] a heat-insulating cover detachably connected to the upper edge of the side wall;

[0009] A heating component is arranged on the bottom plate, and the heating component includes a spiral tube and two heating plates. The spiral tube is located between the two heating plates and has an air inlet and an air outlet. The air inlet is arranged in the positioning hole, and the air outlet is arranged in the open groove.

[0010] Furthermore, a fixing assembly is also included, and the fixing assembly includes an upper clamping plate and a bottom clamping plate, which are used to fix the shell and the insulation cover.

[0011] Furthermore, the upper clamping plate is arranged on a surface of the heat-insulating cover away from the bottom plate, and the bottom clamping plate is arranged on a surface of the bottom plate away from the heat-insulating cover.

[0012] Furthermore, the upper clamping plate has a screw, and the bottom clamping plate has a threaded structure adapted to the screw.

[0013] Furthermore, the heating sheet is a silicone sheet with a resistance wire inside.

[0014] Furthermore, the shell and the heat-insulating cover are made of polytetrafluoroethylene, which is configured to isolate the shell from heat transfer with atmospheric pressure.

[0015] Furthermore, the surfaces of the two heating plates contacting the spiral tube are provided with adhesive tape to fix the heating plates and the spiral tube.

[0016] Furthermore, it also includes a power supply module for providing electrical energy to the heating plate.

[0017] Furthermore, the material of the upper clamping plate and the bottom clamping plate includes aluminum alloy, and the surface is oxidized.

[0018] Furthermore, the outer surface of the spiral tube is provided with heat conducting fins.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] The heating device of the particle size spectrometer provided by the utility model allows air to enter the spiral tube before the air enters the particle size spectrometer, and uses a heating plate to evaporate or reduce the moisture in the air to reduce the humidity. The heated air then enters the particle size spectrometer for particle concentration detection, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 This is an exploded view of the heating device of the particle size spectrometer provided by the present invention;

[0023] Figure 2 This is a schematic structural diagram of the heating device of the particle size spectrometer provided by the present invention.

[0024] Reference numerals:

[0025] 1-shell; 11-bottom plate; 12-side wall; 121-positioning hole; 122-opening slot; 2-insulation cover; 3-heating assembly; 31-spiral tube; 311-air inlet; 312-air outlet; 32-heating plate; 4-fixing assembly; 41-upper clamping plate; 411-screw; 42-bottom clamping plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments disclosed in this disclosure can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the accompanying drawings, the sizes and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in a reverse order from the described order. In addition, the same reference numerals represent the same components.

[0028] Example 1

[0029] A specific embodiment of the present invention is as follows Figure 1-2 As shown, a heating device for a particle size spectrometer is disclosed, comprising:

[0030] The housing 1 has a bottom plate 11 and a side wall 12 , wherein the side wall 12 is provided with a positioning hole 121 and an opening slot 122 ;

[0031] a heat-insulating cover 2 detachably connected to the upper edge of the side wall 12;

[0032] The heating component 3 is arranged on the base plate 11. The heating component 3 includes a spiral tube 31 and two heating plates 32. The spiral tube 31 is located between the two heating plates 32 and has an air inlet 311 and an air outlet 312. The air inlet 311 is arranged in the positioning hole 121, and the air outlet 312 is arranged in the opening groove 122.

[0033] During implementation, external air first enters the spiral tube 31 through the air inlet 311 of the heating component 3. Since the spiral tube 31 is located between the two heating plates 32, the incoming air is evenly heated as it passes through the spiral tube. The heated air is then discharged from the spiral tube 31 through the air outlet 312, allowing the heated air to flow out smoothly and enter the downstream particle size spectrometer for detection. The detachable connection design of the thermal insulation cover 2 and the housing 1 ensures that the equipment can be easily disassembled and cleaned when needed. The main function of the thermal insulation cover is to prevent heat from dissipating from above the heating component, ensuring the effective use of heat energy during the heating process. At the same time, the thermal insulation material can block heat transfer between the equipment and the atmosphere, preventing the impact of external temperature changes on the internal thermal field of the equipment.

[0034] It should be noted that the heating components 3 can be provided in multiple groups according to actual needs, which is not limited in this embodiment.

[0035] For example, the spiral tube 31 may be made of stainless steel and be in a planar spiral shape, so that the air entering the spiral tube can be fully heated, thereby improving the dehumidification effect.

[0036] Compared with the prior art, the heating device of the particle size spectrometer provided in this embodiment allows air to enter a spiral tube before entering the particle size spectrometer, and uses a heating plate to evaporate or reduce the moisture in the air to reduce the humidity. The heated air then enters the particle size spectrometer for particle concentration detection, thereby improving the detection accuracy.

[0037] In this embodiment, a fixing assembly 4 is further included. The fixing assembly 4 includes an upper clamping plate 41 and a bottom clamping plate 42 , and is used to fix the shell 1 and the heat insulation cover 2 .

[0038] In this embodiment, the upper clamping plate 41 is provided on the surface of the thermal insulation cover 2 away from the bottom plate 11, and the bottom clamping plate 42 is provided on the surface of the bottom plate 11 away from the thermal insulation cover 2. The symmetrical fixing of the upper and bottom clamping plates can effectively enhance the overall stability of the device and ensure that the device will not loosen during operation.

[0039] In this embodiment, the upper clamping plate 41 has screws 411, and the bottom clamping plate 42 has a threaded structure adapted to the screws 411. The combination of the screws and the threaded structure facilitates the disassembly or assembly of the housing and the heat insulation cover, thereby increasing the convenience of equipment maintenance.

[0040] In this embodiment, the heating plate 32 is a silicone sheet with a resistance wire inside.

[0041] In this embodiment, the shell 1 and the insulation cover 2 are made of polytetrafluoroethylene, which is configured to isolate the shell 1 from heat transfer from atmospheric pressure. Polytetrafluoroethylene has excellent thermal insulation properties and can effectively reduce heat loss to the outside, thereby improving the heating efficiency of the device.

[0042] In this embodiment, the surfaces of the two heating plates 32 in contact with the spiral tube 31 are provided with adhesive tape to secure the heating plates 32 to the spiral tube 31. The adhesive tape secures the heating plates to the spiral tube, preventing displacement of the heating plates at high temperatures, thereby ensuring uniform and stable heating.

[0043] In this embodiment, a power supply module is further included to provide electrical energy to the heating plate 32 .

[0044] In this embodiment, the upper clamping plate 41 and the bottom clamping plate 42 are made of aluminum alloy, and the surface is oxidized. Aluminum alloy has high strength and good heat dissipation performance. Oxidation can improve the corrosion resistance of the material and increase the service life.

[0045] In some embodiments, heat conducting fins are provided on the outer surface of the spiral tube 31. The heat conducting fins can effectively enhance the heat dissipation performance of the spiral tube, making the air heated by the spiral tube more uniform, thereby improving the overall efficiency of air heating.

[0046] It should be noted that the heating device provided by the present invention can be flexibly applied to various occasions requiring air dehumidification, such as fixed equipment and mobile equipment, and this embodiment does not limit this.

[0047] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A heating device for a particle size spectrometer, characterized in that: include: The housing (1) has a bottom plate (11) and a side wall (12), wherein the side wall (12) is provided with a positioning hole (121) and an opening groove (122); a heat-insulating cover (2) detachably connected to the upper edge of the side wall (12); A heating assembly (3) is provided on the bottom plate (11), comprising a spiral tube (31) and two heating plates (32), wherein the spiral tube (31) is located between the two heating plates (32) and has an air inlet (311) and an air outlet (312), wherein the air inlet (311) is provided in the positioning hole (121), and the air outlet (312) is provided in the opening groove (122).

2. The heating device of the particle size spectrometer according to claim 1, characterized in that: It also includes a fixing assembly (4), which includes an upper clamping plate (41) and a bottom clamping plate (42) and is used to fix the shell (1) and the heat insulation cover (2).

3. The heating device of the particle size spectrometer according to claim 2, characterized in that: The upper clamping plate (41) is provided on a surface of the heat-insulating cover (2) away from the bottom plate (11), and the bottom clamping plate (42) is provided on a surface of the bottom plate (11) away from the heat-insulating cover (2).

4. The heating device of the particle size spectrometer according to claim 2, characterized in that: The upper clamping plate (41) has a screw (411), and the bottom clamping plate (42) has a threaded structure adapted to the screw (411).

5. The heating device of the particle size spectrometer according to claim 1, characterized in that: The heating sheet (32) is a silicone sheet with a resistance wire inside.

6. The heating device of the particle size spectrometer according to claim 1, characterized in that: The shell (1) and the heat-insulating cover (2) are made of polytetrafluoroethylene and are configured to isolate the shell (1) from heat transfer with atmospheric pressure.

7. The heating device of the particle size spectrometer according to claim 1, characterized in that: The surfaces of the two heating plates (32) in contact with the spiral tube (31) are provided with adhesive tape to fix the heating plates (32) and the spiral tube (31).

8. The heating device of the particle size spectrometer according to claim 1, characterized in that: It also includes a power supply module for providing electrical energy to the heating plate (32).

9. The heating device of the particle size spectrometer according to claim 4, characterized in that: The materials of the upper clamping plate (41) and the bottom clamping plate (42) include aluminum alloy, and the surfaces are subjected to oxidation treatment.

10. The heating device of the particle size spectrometer according to claim 1, characterized in that: The outer surface of the spiral tube (31) is provided with heat-conducting fins.

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