Nitrogen blowing concentrator capable of independently controlling flow velocity
By adopting the design of independently controlling the nitrogen flow rate in the nitrogen blower, the problem of low flow control accuracy and relying on human eye observation is solved, and more efficient and accurate test progress and concentration end point judgment are achieved, saving human resources.
Patent Information
- Application Number
- CN202420904790.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-28
AI Technical Summary
During the use of the existing nitrogen blower, the nitrogen flow control accuracy is low, resulting in inaccurate test results. It relies on the human eye to observe the liquid level to judge the progress and end points, which wastes human resources and time and is inefficient.
A nitrogen blower with independent flow rate control is designed, using the upper cover of the air chamber, the lower cover of the air chamber, the sealed O-ring, the nitrogen blowing needle interface, the button valve, the nitrogen inlet, the adapter and the adapter communication pipe. Combination, the nitrogen flow rate is independently controlled through the button valve, avoiding human eye observation, and automatic judgment of the test progress and concentration end point.
It improves the accuracy of nitrogen flow rate control, reduces the observation time of testers, saves human resources, and improves the test efficiency and accuracy.
Smart Images
Figure CN222336904U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nitrogen blowing instruments, in particular to a nitrogen blowing instrument with independently controllable flow rate. Background Art
[0002] Nitrogen blow dryer is also called nitrogen blow dryer, automatic rapid concentrator, etc. There are two common types of nitrogen blow dryers on the market: dry nitrogen blow dryers and water bath nitrogen blow dryers. Nitrogen blow dryers have been recognized and accepted by more and more people to replace traditional rotary evaporators to concentrate samples.
[0003] We know that there are two ways to speed up evaporation: increase the air flow around it and its temperature. Nitrogen is an inactive gas that can isolate oxygen and prevent oxidation. The nitrogen blower uses the rapid flow of nitrogen to break the gas-liquid equilibrium above the liquid, thereby accelerating the evaporation of the liquid; and increases the temperature through dry heating or water bath heating (the boiling point of the target is generally higher than that of the solvent), thereby achieving the purpose of concentration.
[0004] The existing technology has the following problems:
[0005] In the actual use of the existing nitrogen blowing instrument, the flow rate of nitrogen entering from the blowing needle channel needs to be regulated according to different concentrated products. At present, the main way to control the flow rate is to use a pressure gauge or a rotor flow meter. Both the pressure gauge and the rotor flow meter have the defect of relatively low accuracy, and cannot provide an accurate and reliable digital basis for the test, which will affect the final result of the test.
[0006] Most of the instruments on the market now rely on human eyes to observe the liquid level to judge the progress of the test and the end point of the concentration. This requires the test personnel to stand in front of the instrument for a long time and observe continuously, which wastes human resources. At the same time, long-term observation also wastes time, and the structure of human eye observation is not ideal and there are errors. Therefore, the efficiency of using human eyes to observe the progress and end point of the concentration is not high. Utility Model Content
[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0008] A flow rate independently controllable nitrogen blowing instrument comprises an air chamber upper cover, an air chamber lower cover is installed at the lower end of the air chamber upper cover, four groups of sealing O-rings are evenly distributed on the surface of the air chamber upper cover, nitrogen blowing needle interfaces are installed inside the air chamber upper cover and the air chamber lower cover, a button valve is installed on the top of the nitrogen blowing needle interface, a nitrogen inlet is installed at the right end of the air chamber upper cover, an adapter is installed inside the air chamber upper cover and the air chamber lower cover, and an adapter connecting pipe is installed at the right end of the adapter.
[0009] Preferably, the lower end of the air chamber upper cover is fixedly connected to the upper end of the air chamber lower cover, and the surface of the air chamber upper cover is fixedly connected to the outer end of the sealing O-ring.
[0010] Preferably, the lower end of the nitrogen blowing needle interface is penetrated and fixedly connected with the lower end of the gas chamber lower cover.
[0011] Preferably, the upper end of the nitrogen blowing needle interface is fixedly connected to the inside of the sealing O-ring.
[0012] Preferably, the upper end of the nitrogen blowing needle interface is fixedly connected to the lower end of the button valve and communicated with each other.
[0013] Preferably, the right end of the air chamber upper cover is fixedly connected to the left end of the nitrogen inlet and communicates with each other.
[0014] Preferably, the interior of the air chamber upper cover and the air chamber lower cover are fixedly connected to the exterior of the adapter.
[0015] Preferably, the adapter is communicated with the adapter connecting pipe.
[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0017] The utility model provides a nitrogen blowing instrument with independently controllable flow rate. The nitrogen blowing instrument can be connected with external equipment through the cooperation of an air chamber upper cover, an air chamber lower cover, a sealing O-ring, a nitrogen blowing needle interface, a button valve, a nitrogen inlet, a switching joint, and a switching joint connecting pipe. When the button valve is used, it is not necessary to rely on human naked eyes to observe the liquid level, and the progress of the test and the end point of the concentration can be accurately judged, so that the test personnel do not need to be in front of the instrument for a long time to observe continuously, thereby not wasting human resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a nitrogen blowing apparatus with independently controllable flow rate according to the utility model;
[0019] Figure 2 It is a structural schematic diagram of the front view of the nitrogen blowing instrument with independently controllable flow rate of the present invention;
[0020] Figure 3 The right side diagram is a structural schematic diagram of the nitrogen blowing instrument with independently controllable flow rate of the present invention;
[0021] Figure 4 The utility model is a schematic structural diagram of a cross-sectional view of a nitrogen blowing apparatus with independently controllable flow rate.
[0022] In the figure: 1. Air chamber upper cover; 2. Air chamber lower cover; 3. Sealing O-ring; 4. Nitrogen blow needle interface; 5. Button valve; 6. Nitrogen inlet; 7. Adapter; 8. Adapter connecting pipe. DETAILED DESCRIPTION
[0023] The present invention is further described in detail below in conjunction with the embodiments:
[0024] like Figure 1-4 As shown, the utility model provides a nitrogen blowing instrument with independently controllable flow rate, comprising an air chamber upper cover 1, an air chamber lower cover 2 is installed at the lower end of the air chamber upper cover 1, four groups of sealing O-rings 3 are evenly distributed on the surface of the air chamber upper cover 1, a nitrogen blowing needle interface 4 is installed inside the air chamber upper cover 1 and the air chamber lower cover 2, a button valve 5 is installed on the top of the nitrogen blowing needle interface 4, a nitrogen inlet 6 is installed at the right end of the air chamber upper cover 1, an adapter 7 is installed inside the air chamber upper cover 1 and the air chamber lower cover 2, and an adapter connecting pipe 8 is installed at the right end of the adapter 7.
[0025] The right end of the air chamber upper cover 1 is fixedly connected to the left end of the nitrogen inlet 6 and communicates with each other.
[0026] The interior of the air chamber upper cover 1 and the air chamber lower cover 2 are fixedly connected to the exterior of the adapter 7 .
[0027] The adapter 7 is communicated with the adapter connecting pipe 8 .
[0028] The nitrogen blowdown instrument can be connected to external equipment. By using the button valve 5, there is no need to rely on human eyes to observe the liquid level, so the progress of the test and the end point of the concentration can be accurately judged. In this way, there is no need for the test personnel to stay in front of the instrument for a long time to observe continuously, thereby avoiding a waste of human resources.
[0029] like Figure 1-4 As shown, the lower end of the air chamber upper cover 1 is fixedly connected to the upper end of the air chamber lower cover 2 , and the surface of the air chamber upper cover 1 is fixedly connected to the outer end of the sealing O-ring 3 .
[0030] The lower end of the nitrogen blowing needle interface 4 is penetrated and fixedly connected with the lower end of the gas chamber lower cover 2 .
[0031] The upper end of the nitrogen blowing needle interface 4 penetrates and is fixedly connected to the inside of the sealing O-ring 3 .
[0032] The upper end of the nitrogen blowing needle interface 4 is fixedly connected to the lower end of the button valve 5 and communicated with each other.
[0033] The sealing O-ring 3 can improve the sealing performance between the button valve 5 and the nitrogen blowing needle interface 4 to prevent leakage.
[0034] The following is a detailed description of the working principle of the independently controllable flow rate nitrogen blowdown instrument.
[0035] like Figure 1-4As shown, when the flow rate independently controllable nitrogen blowdown instrument is used, the nitrogen blowdown instrument can be placed in a suitable position first, and the nitrogen inlet 6 or the nitrogen blowdown needle interface 4 can be connected to the external test equipment. The nitrogen flow rate inside the nitrogen blowdown needle interface 4 can be adjusted independently by adjusting multiple button valves 5, thereby improving the accuracy of the test. Through the cooperation of multiple button valves 5, it can meet the requirement of giving priority to providing nitrogen to the nitrogen blowdown instrument when facing user units including the nitrogen blowdown instrument and other nitrogen-using equipment, and at the same time, the flow rate at each nitrogen blowdown needle interface 4 can be controlled independently afterwards, which has outstanding substantial characteristics and significant progress.
[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A nitrogen blowing apparatus with independently controllable flow rate, comprising an air chamber upper cover (1), wherein an air chamber lower cover (2) is mounted at the lower end of the air chamber upper cover (1), characterized in that: Four groups of sealing O-rings (3) are evenly distributed on the surface of the air chamber upper cover (1); a nitrogen blow needle interface (4) is installed inside the air chamber upper cover (1) and the air chamber lower cover (2); a button valve (5) is installed on the top of the nitrogen blow needle interface (4); a nitrogen inlet (6) is installed at the right end of the air chamber upper cover (1); an adapter (7) is installed inside the air chamber upper cover (1) and the air chamber lower cover (2); and an adapter connecting pipe (8) is installed at the right end of the adapter (7).
2. The independently controllable nitrogen blowing apparatus according to claim 1, characterized in that: The lower end of the air chamber upper cover (1) is fixedly connected to the upper end of the air chamber lower cover (2), and the surface of the air chamber upper cover (1) is fixedly connected to the outer end of the sealing O-ring (3).
3. A flow rate independently controllable nitrogen blowing instrument according to claim 2, characterized in that: The lower end of the nitrogen blowing needle interface (4) is penetrated and fixedly connected with the lower end of the gas chamber lower cover (2).
4. The independently controllable nitrogen blowing apparatus according to claim 3, characterized in that: The upper end of the nitrogen blowing needle interface (4) is fixedly connected to the inside of the sealing O-ring (3).
5. The independently controllable nitrogen blowing apparatus according to claim 4, characterized in that: The upper end of the nitrogen blowing needle interface (4) is fixedly connected to the lower end of the button valve (5) and communicates with each other.
6. The independently controllable nitrogen blowing apparatus according to claim 1, characterized in that: The right end of the air chamber upper cover (1) is fixedly connected to the left end of the nitrogen inlet (6) and communicates with each other.
7. The independently controllable nitrogen blowing apparatus according to claim 1, characterized in that: The interior of the air chamber upper cover (1) and the air chamber lower cover (2) are fixedly connected to the exterior of the adapter (7).
8. The independently controllable nitrogen blowing apparatus according to claim 1, characterized in that: The adapter (7) is connected to the adapter connecting pipe (8).