Nitrogen blowing concentrator
By introducing an insulating sleeve into the nitrogen blower, the problem of heat loss during the heating process of the test tube is solved, and the rapid heating and efficient heating efficiency of the sample are achieved.
Patent Information
- Application Number
- CN202421553189.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the fragrance analysis of nitrogen blower, the heating speed and efficiency of the samples in the test tube are not high due to heat loss during the heating process.
A nitrogen blower is designed, and heating parts and thermal insulation sleeves are installed in the main unit. The heating parts are used to heat samples, and the insulation sleeve is installed outside the samples, and high-temperature insulating materials are used to isolate heat and reduce heat loss.
Through the insulation effect of the insulation sleeve, the heat transfer between the test tube and the outside world is reduced, the heating efficiency of the sample is improved, and the sample can be heated quickly.
Smart Images
Figure CN222913291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nitrogen blowers, and particularly relates to a nitrogen blower. Background Art
[0002] The nitrogen drying instrument is also called nitrogen concentration device, nitrogen purging instrument, nitrogen blowing concentrator, sample concentrator, abbreviated as: nitrogen blower, nitrogen blowing instrument, concentrator. Usually, nitrogen is blown onto the surface of the heated sample for sample concentration, which has the characteristics of time-saving, convenient operation, easy control, etc., and is widely used in the industries of agricultural residue analysis, commodity inspection, food, environment, pharmacy, biological products, etc. and in the sample preparation for liquid phase, gas phase and mass spectrometry analysis.
[0003] In the application of the nitrogen blower in flavor analysis, the flavor sample in the test tube needs to be heated for evaporation and concentration. During the heating process, the test tube is exposed outside and will exchange heat with the outside world, resulting in large heat loss, thus affecting the heating speed and efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to provide a nitrogen blower to solve the problems put forward in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a nitrogen blower, including: a main body, a heating element is arranged inside the main body, the heating element is used to heat the sample, a heat preservation sleeve is arranged inside the main body, the heat preservation sleeve is sleeved outside the sample for heat preservation of the sample.
[0006] Preferably, a groove is opened on the main body, and the heating element is fixedly installed in the groove.
[0007] Preferably, a volume cavity structure is formed between the outer wall of the heating element and the inner wall of the groove, and the volume cavity structure is a clamping groove.
[0008] Preferably, the heat preservation sleeve is arranged in the clamping groove.
[0009] Preferably, the heating element is a heating rod.
[0010] Preferably, the heating element is a heating tube.
[0011] Preferably, a column is fixedly installed on the main body, and the column is connected to an experimental elevator.
[0012] Preferably, the experimental elevator is connected to a gas supply device, the gas supply device includes a moving seat, and a nitrogen blowing needle is threadedly connected to the moving seat.
[0013] Preferably, a guide air pipe is communicated with the nitrogen blowing needle, and the guide air pipe is connected to a connector.
[0014] Preferably, the adapter is connected to the gas supply line, and a valve is provided on the gas supply line.
[0015] The nitrogen blowing instrument has the following beneficial effects:
[0016] During the process of the heating element heating the test tube containing the sample, the heat preservation sleeve insulates the test tube, thereby reducing the heat transfer between the test tube and the outside, reducing heat loss, enabling the sample in the test tube to be quickly heated by the heating element, and thus improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a perspective view of the nitrogen blowing instrument provided by the embodiment of the present application;
[0018] Figure 2 is an exploded view of the nitrogen blowing instrument provided by the embodiment of the present application;
[0019] Figure 3 is Figure 2 a top view of the main body in
[0020] Figure 4 is a schematic diagram of the heat preservation sleeve insulating the test tube;
[0021] Figure 5 is a top view of the main body in another embodiment.
[0022] In the figure: 1, main body; 2, heating element; 3, card slot; 4, heat preservation sleeve; 5, column; 6, experimental elevator; 7, gas supply device; 71, moving seat; 72, nitrogen blowing needle; 73, air duct; 74, adapter; 75, gas supply line. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] As Figure 1 shown, the present invention provides a nitrogen blowing instrument, including: a main body 1, a heating element 2 is arranged inside the main body 1, and the heating element 2 is used to heat the sample. Temperature sensors (not shown in the figure) are respectively installed at the bottom and top of the main body 1 to monitor the temperature distribution of the entire working environment and ensure heating uniformity and temperature control accuracy.
[0025] Specifically, as Figure 3As shown, a groove is formed in the inner cavity of the main body 1, and the heating element 2 is fixedly installed in the groove. The heating element 2 is a heating rod, and the heating rod is a heating rod with temperature detection by a thermistor. A volume cavity structure is formed between the outer wall of the heating element 2 and the inner wall of the groove, and the volume cavity structure is a clamping groove 3.
[0026] Furthermore, as Figures 1 - 4 shown, a heat preservation sleeve 4 is arranged in the main body 1. The material of the heat preservation sleeve 4 includes but is not limited to rubber, foam plastic, and ceramic fiber. The heat preservation sleeve 4 is arranged in the clamping groove 3 and sleeved outside the sample for heat preservation of the sample. The heat preservation sleeve 4 adopts high-temperature insulation materials such as ceramic fiber and silica gel plate to effectively isolate heat.
[0027] As Figure 1 shown, the main body 1 is fixedly installed with a column 5. The column 5 is connected to an experimental elevator 6, and the experimental elevator 6 is connected to a gas supply device 7. The experimental elevator 6 drives the gas supply device 7 to lift on the column 5. The gas supply device 7 includes a moving seat 71. A nitrogen blowing needle 72 is threadedly connected to the moving seat 71. A gas guide pipe 73 is communicated with the nitrogen blowing needle 72. The gas guide pipe 73 is connected to a connector 74. The connector 74 is connected to a gas supply pipeline 75. The gas supply pipeline 75 is connected to an external nitrogen source, and a valve is arranged on the gas supply pipeline 75.
[0028] In this embodiment, a test tube containing a sample is placed in the heat preservation sleeve 4. At this time, the bottom of the test tube is in contact with the heating element 2. The experimental elevator 6 is adjusted to lower the nitrogen blowing needle 72. The valve on the gas supply pipeline 75 is opened, so that nitrogen enters the gas guide pipe 73 from the gas supply pipeline 75. The gas guide pipe 73 conveys nitrogen to the nitrogen blowing needle 72, and the nitrogen blowing needle 72 performs nitrogen blowing on the sample in the test tube. During the nitrogen blowing process, the heating element 2 heats the test tube containing the sample, and the heat preservation sleeve 4 insulates the test tube, thereby reducing the heat transfer between the test tube and the outside world to reduce heat loss, enabling the sample in the test tube to be quickly heated by the heating element 2, and thus improving the heating efficiency.
[0029] In another embodiment, as Figure 5 shown, the heating element 2 is a heating tube, and the heating tube is a tubular member. The heating tube includes but is not limited to a finned electric heating tube, a Teflon electric heating tube, and a quartz electric heating tube. The test tube can be inserted into the heating tube, so that the heating element 2 can wrap the outer wall of the test tube to expand the heating area and further increase the heating efficiency of the sample in the test tube.
[0030] Working principle: Place the test tube containing the sample in the heat preservation sleeve 4. At this time, the bottom of the test tube contacts the heating element 2. Adjust the experimental elevator 6 to lower the nitrogen blowing needle 72. Open the valve on the gas supply pipeline 75, and the nitrogen blowing needle 72 blows nitrogen to the sample in the test tube. During the nitrogen blowing process, the heating element 2 heats the test tube containing the sample, and the heat preservation sleeve 4 insulates the test tube, thereby reducing the heat transfer between the test tube and the outside world to reduce heat loss, enabling the sample in the test tube to be quickly heated by the heating element 2, and thus improving the heating efficiency.
[0031] In summary, although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A nitrogen blowing apparatus, characterized in that: include: A main unit (1), wherein a heating element (2) is arranged inside the main unit (1), and the heating element (2) is used to heat the sample; A heat preservation sleeve (4) is arranged inside the main machine (1), and the heat preservation sleeve (4) is arranged outside the sample to keep the sample warm.
2. A nitrogen blowing apparatus according to claim 1, characterized in that: The main machine (1) is provided with a groove, and the heating element (2) is fixedly installed in the groove.
3. A nitrogen blowing apparatus according to claim 2, characterized in that: The outer wall of the heating element (2) and the inner wall of the groove form a volume cavity structure, and the volume cavity structure is a clamping groove (3).
4. A nitrogen blowing apparatus according to claim 3, characterized in that: The heat-insulating sleeve (4) is arranged in the clamping slot (3).
5. A nitrogen blowing apparatus according to claim 1, characterized in that: The heating element (2) is a heating rod.
6. A nitrogen blowing apparatus according to claim 1, characterized in that: The heating element (2) is a heating tube.
7. A nitrogen blowing apparatus according to claim 1, characterized in that: The main machine (1) is fixedly mounted with a column (5), and the column (5) is connected to a test lift (6).
8. A nitrogen blowing apparatus according to claim 7, characterized in that: The experimental elevator (6) is connected to a gas supply device (7), and the gas supply device (7) comprises a movable seat (71), and the movable seat (71) is threadedly connected with a nitrogen blowing needle (72).
9. A nitrogen blowing apparatus according to claim 8, characterized in that: The nitrogen blowing needle (72) is connected to an air guide tube (73), and the air guide tube (73) is connected to an adapter (74).
10. A nitrogen blowing apparatus according to claim 9, characterized in that: The adapter (74) is connected to an air supply pipeline (75), and the air supply pipeline (75) is provided with a valve.