Content measuring device for nitrous oxide production

Abstract

The utility model discloses a content measuring device for nitrous oxide production, which belongs to the field of content measuring devices, and comprises an upper shell and a lower shell rotationally connected with the upper shell through a pin shaft, a filtering mechanism is mounted in the lower shell, a detection mechanism is mounted in the middle of the interior of the lower shell, and the detection mechanism is mounted in the middle of the lower shell. The filtering mechanism comprises a hollow pipe fixedly connected to the interior of the lower shell, and an air inlet pipe is fixedly connected to the surface of the hollow pipe; through cooperative use of the devices, a rotary knob is rotated, so that a threaded rod drives a push plate and a push rod to move, a sealing plate slides in a hollow pipe, a sample is pushed to pass through an ultrafiltration membrane, and sample gas is filtered, so that the subsequently detected sample is purer, and the influence of impurities on subsequent detection is avoided; through the arrangement of the exhaust pipe, the filtered sample gas is conveyed into the electrochemical sensor, and the gas is detected through the electrochemical sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to content determination device technical field, concretely is a content determination device for nitrous oxide production. BACKGROUND

[0002] Nitrous oxide (N2O), commonly known as laughing gas, is a gas with special properties and wide application. At normal temperature and pressure, nitrous oxide is a colorless gas with a slight sweet taste. Its relative density is 1.977, the melting point is -90.8℃, and the boiling point is -88.5℃. It can be dissolved in water, ethanol, diethyl ether and concentrated sulfuric acid. Nitrous oxide is relatively stable at room temperature, but it can decompose into nitrogen and oxygen at high temperature or in the presence of a catalyst. It has oxidizing properties and can support combustion. Under certain conditions, it can also react with some metals and non-metals.

[0003] According to the search, the Chinese utility model patent discloses a content determination device for nitrous oxide production (publication number: CN209486055U), which comprises a case, a fixed frame is fixedly installed on the inner wall left side of the case, a carrier gas bottle is fixedly installed in the inside of the fixed frame, a gas pressure valve is fixedly installed on the top of the case and extends to the inside of the case, the gas inlet of the gas pressure valve is fixedly connected with the gas outlet of the carrier gas bottle through a gas inlet pipe, a chromatographic furnace is fixedly installed on the inner wall bottom of the case and located at the right side of the carrier gas bottle, and a partition plate is fixedly installed on the inner wall left side of the chromatographic furnace and extends to the inner wall right side of the chromatographic furnace. The content determination device for nitrous oxide production can convert the signal of the detected gas into an electric signal through a detector and transmit it to an amplifier through a wire. The amplifier amplifies the electric signal and transmits it to a display screen for display and a storage device for storage, achieving the effect of simple and convenient detection of nitrous oxide content.

[0004] The above-mentioned patent can prevent the leakage of nitrous oxide and cause inaccurate detection by inverting the test tube containing the measured nitrous oxide in the fixed seat, fixing the O-ring and the pipe opening of the test tube containing the measured nitrous oxide, and achieving efficient and accurate measurement. However, when detecting nitrous oxide, the nitrous oxide gas cannot be filtered, which causes impurities in the nitrous oxide to enter the detection device at the same time, affecting the detection of the detection device, and reducing the accuracy of the nitrous oxide detection result, affecting the detection of nitrous oxide.

[0005] Therefore, the utility model provides a content determination device for nitrous oxide production to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0006] (I) Technical problems solved

[0007] The utility model provides a content determination device for nitrous oxide production, aims at solving the problem in the background technique.

[0008] (II) Technical solutions

[0009] To achieve the above object, the utility model provides the following technical scheme: a content determination device for nitrous oxide production, including upper casing and the lower casing of rotation connection through the pin shaft with upper casing, the inside installation of lower casing has filtering mechanism, the middle part of inside lower casing is equipped with detection mechanism,

[0010] The filtering mechanism includes a hollow pipe fixedly connected to the inside of the lower casing, the surface of the hollow pipe is fixedly connected with the air inlet pipe, the inside of the hollow pipe is slidably connected with the sealing plate, the side of the sealing plate is attached with the push rod, one end of the push rod is fixedly connected with the push plate, the surface of the hollow pipe is provided with a sliding groove, the push plate is slidably connected in the inside of the sliding groove, the inside of the hollow pipe is inserted with the ultrafiltration membrane, the both sides of the surface of the ultrafiltration membrane are fixedly connected with the magnet block, the ultrafiltration membrane is connected with the hollow pipe by the magnet block, the other side of the hollow pipe is fixedly connected with the exhaust pipe.

[0011] As a preferred technical scheme of the application, the exhaust pipe is connected with the hollow pipe, the surface of the ultrafiltration membrane is fixedly connected with the clamping block, the surface of the push plate is threadedly connected with the threaded rod rotatably connected with the hollow pipe through the bearing seat, the surface of the threaded rod is fixedly connected with the knob, and the knob and the threaded rod are rotatably connected in the inside of the lower casing.

[0012] As a preferred technical scheme of the application, the detection mechanism includes a mounting groove fixedly connected to the inside of the lower casing, the inside of the mounting groove is fixedly connected with the detection shell, the surface of the detection shell is provided with a display screen and a control button, and the inside of the detection shell is fixedly connected with two identical electrochemical sensors.

[0013] As a preferred technical scheme of the application, the detection mechanism further includes a sealing plate slidably connected to the inside of the detection shell, the both edges of one side of the sealing plate are fixedly connected with the insertion rod, the surface of the insertion rod is fixedly connected with the elastic ball, and the sealing plate corresponds to the electrochemical sensor.

[0014] As a preferred technical scheme of the application, the middle part of the inside of the detection shell is fixedly connected with the isolation plate, the surface of the isolation plate is fixedly connected with the sealing paperboard, the two electrochemical sensors are fixedly connected to the both sides of the isolation plate, and the electrochemical sensor is connected with the exhaust pipe.

[0015] As a preferred technical scheme of the present application, one side of the lower shell is fixedly connected with a handle, one side of the inside of the lower shell is inserted with a gas collecting bottle, the surface of the gas collecting bottle is threadedly connected with a sealing cover, and the upper shell corresponds to the lower shell.

[0016] (Three) beneficial effects

[0017] Through the setting of the filtering mechanism and the detection mechanism, the sample taken is injected into the inside of the hollow pipe through the air inlet pipe, the knob is rotated, the threaded rod drives the push plate and the push rod to move, the sealing plate slides in the inside of the hollow pipe, the sample is pushed through the ultrafiltration membrane, the sample gas is filtered, so that the subsequent detection sample is more pure, and the influence of impurities on subsequent detection is avoided, and through the setting of the air outlet pipe, the filtered sample gas is transported into the electrochemical sensor, the gas is detected by the electrochemical sensor, and the detection data is displayed on the display screen, which facilitates the staff to directly watch the data.

[0018] Through the setting of the gas collecting bottle and the electrochemical sensor, when the detection mechanism cannot be used, the sample is stored by the gas collecting bottle, which facilitates subsequent detection of the sample, and through the setting of the two electrochemical sensors, only one of the electrochemical sensors is used when detecting the sample, and when one of the electrochemical sensors fails, the sealing paper board is removed, so that the two sides of the isolation plate are connected, so that the gas can enter the other electrochemical sensor, so that the detection mechanism is more stable during use, and the detection of nitrous oxide is not affected due to damage of the electrochemical sensor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of a content measuring device for nitrous oxide production.

[0020] Figure 2 It is a structure schematic view of a content measuring device for nitrous oxide production from a second perspective.

[0021] Figure 3 It is a structure schematic view of a filtering mechanism in a content measuring device for nitrous oxide production.

[0022] Figure 4 It is a structure schematic view of a detection mechanism in a content measuring device for nitrous oxide production.

[0023] Figure 5 It is a content measuring device for nitrous oxide production Figure 4 The structure schematic view of the enlarged structure at A.

[0024] In the figure:

[0025] 1. Upper housing; 2. Lower housing; 3. Hollow tube; 4. Inlet pipe; 5. Sealing plate; 6. Push rod; 7. Push plate; 8. Sliding groove; 9. Ultrafiltration membrane; 10. Magnet block; 11. Exhaust pipe; 12. Threaded rod; 13. Mounting groove; 14. Detection housing; 15. Control button; 16. Electrochemical sensor; 17. Sealing plate; 18. Connecting rod; 19. Isolation plate; 20. Sealing cardboard; 21. Gas collecting bottle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a device for determining the content of nitrous oxide in production, such as... Figures 1-5 As shown, the nitrous oxide production content determination device includes an upper shell 1 and a lower shell 2 rotatably connected to the upper shell 1 via a pin. The upper shell 1 and the lower shell 2 correspond to each other. A handle is fixedly connected to one side of the lower shell 2, and a gas collecting bottle 21 is inserted into one side inside the lower shell 2. A sealing cap is threaded onto the surface of the gas collecting bottle 21. By setting up the gas collecting bottle 21, when the nitrous oxide production content determination device cannot detect the nitrous oxide sample gas, the sample can be collected through the gas collecting bottle 21, which facilitates the subsequent testing by the staff.

[0028] A filter mechanism is installed inside the lower housing 2. The filter mechanism includes a hollow tube 3 fixedly connected to the inside of the lower housing 2. An air inlet pipe 4 is fixedly connected to the surface of the hollow tube 3. A sealing plate 5 is slidably connected inside the hollow tube 3. A push rod 6 is attached to one side of the sealing plate 5. A push plate 7 is fixedly connected to one end of the push rod 6. A threaded rod 12 is threadedly connected to the surface of the push plate 7 and rotatably connected to the hollow tube 3 through a bearing seat. A knob is fixedly connected to the surface of the threaded rod 12. Both the knob and the threaded rod 12 are rotatably connected to the inside of the lower housing 2. The collected sample is transported to the inside of the hollow tube 3 through the air inlet pipe 4. Rotating the knob causes the threaded rod 12 to rotate inside the lower housing 2, which drives the push plate 7 to slide inside the sliding groove 8, thereby causing the push rod 6 to push the sealing plate 5 to slide inside the hollow tube 3.

[0029] The surface of the hollow pipe 3 is provided with a sliding groove 8, the pushing plate 7 is slidingly connected to the inside of the sliding groove 8, the inside of the hollow pipe 3 is inserted with an ultrafiltration membrane 9, the surface of the ultrafiltration membrane 9 is fixedly connected with a clamping block, the two sides of the surface of the ultrafiltration membrane 9 are fixedly connected with a magnet block 10, the setting of the magnet block 10 makes the ultrafiltration membrane 9 and the hollow pipe 3 magnetically attracted, so that the replacement of the ultrafiltration membrane 9 is more convenient, the ultrafiltration membrane 9 is magnetically connected with the hollow pipe 3 through the magnet block 10, the sample gas in the hollow pipe 3 is pushed, so that the sample gas passes through the ultrafiltration membrane 9, the sample gas is filtered, so that the sample gas is more pure in subsequent detection, the other side of the hollow pipe 3 is fixedly connected with an exhaust pipe 11, the exhaust pipe 11 is communicated with the hollow pipe 3, the setting of the exhaust pipe 11 transports the filtered nitrous oxide gas to the inside of a detection shell 14;

[0030] A detection mechanism is mounted in the middle of the inside of the lower shell 2, the detection mechanism comprises a mounting groove 13 fixedly connected to the inside of the lower shell 2, the inside of the mounting groove 13 is fixedly connected with a detection shell 14, the surface of the detection shell 14 is provided with a display screen and a control button 15, the inside of the detection shell 14 is fixedly connected with two same electrochemical sensors 16, the electrochemical sensors 16 are communicated with the exhaust pipe 11, the setting of the electrochemical sensors 16 detects the nitrous oxide gas and transmits the detection result to the display screen to display, so as to facilitate the staff to directly observe the detection value;

[0031] An isolation plate 19 is fixedly connected to the middle of the inside of the detection shell 14, the setting of the isolation plate 19 makes the two electrochemical sensors 16 can be used separately when in use, the two electrochemical sensors 16 are isolated, only one of the electrochemical sensors 16 is used when detecting the sample, when one of the electrochemical sensors 16 fails, the sealing paper plate 20 is removed, so that the two sides of the isolation plate 19 are communicated, so that the gas can enter the other electrochemical sensor 16, so that the detection mechanism is more stable when in use, and the detection of nitrous oxide is not affected due to the damage of the electrochemical sensor 16;

[0032] The surface of the isolation plate 19 is fixedly connected with a sealing paper plate 20, the two electrochemical sensors 16 are fixedly connected to the two sides of the isolation plate 19, the detection mechanism further comprises a sealing plate 17 slidingly connected to the inside of the detection shell 14, the two edges of one side of the sealing plate 17 are fixedly connected with plug-in rods 18, the surface of the plug-in rods 18 is fixedly connected with elastic balls, the setting of the elastic balls makes the sealing plate 17 can slide in the inside of the detection shell 14, so that the electrochemical sensor 16 leaks, which facilitates the staff to replace the electrochemical sensor 16, the sealing plate 17 corresponds to the electrochemical sensor 16.

[0033] Specifically, the nitrous oxide production content determination device in use: the collected sample is transported to the inside of the hollow tube 3 through the gas inlet pipe 4, the knob is rotated, the threaded rod 12 is rotated in the inside of the lower shell 2, the push plate 7 is driven to slide in the sliding groove 8, so that the push rod 6 pushes the sealing plate 5 to slide in the inside of the hollow tube 3, the sample gas in the hollow tube 3 is pushed, so that the sample gas passes through the ultrafiltration membrane 9, the sample gas is filtered, so that the sample gas is more pure in subsequent detection, through the setting of the exhaust pipe 11, the filtered nitrous oxide gas is transported to the inside of the detection shell 14;

[0034] Through the setting of the electrochemical sensor 16, the nitrous oxide gas is detected, and the detection result is transmitted to the display screen to display, so that the staff can directly observe the detection value, through the setting of the elastic ball, the sealing plate 17 can slide in the inside of the detection shell 14, so that the electrochemical sensor 16 leaks, the staff can replace the electrochemical sensor 16, so that the nitrous oxide production content determination device is more convenient in use, and through the setting of the gas collecting bottle 21, when the nitrous oxide production content determination device cannot detect the nitrous oxide sample gas, the sample is collected through the gas collecting bottle 21, so that the staff can detect later.

[0035] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can replace or change the technical scheme and the utility model concept of the present application according to the technical range disclosed in the present application, which should be covered in the protection scope of the present application.

Claims

1. A nitrogen oxide production content measuring device comprising an upper shell (1) and a lower shell (2) rotatably connected to the upper shell (1) by a pin shaft, characterized in that: The inside of the lower shell (2) is internally provided with a filtering mechanism, and the middle of the inside of the lower shell (2) is internally provided with a detection mechanism; The filtering mechanism comprises a hollow pipe (3) fixedly connected to the inside of the lower shell (2), the surface of the hollow pipe (3) is fixedly connected with an air inlet pipe (4), the inside of the hollow pipe (3) is slidably connected with a sealing plate (5), one side of the sealing plate (5) is attached with a push rod (6), one end of the push rod (6) is fixedly connected with a push plate (7), the surface of the hollow pipe (3) is provided with a sliding groove (8), the push plate (7) is slidably connected in the inside of the sliding groove (8), the inside of the hollow pipe (3) is inserted with an ultrafiltration membrane (9), the surface of the ultrafiltration membrane (9) is fixedly connected with a magnet block (10) on both sides, the ultrafiltration membrane (9) is magnetically connected with the hollow pipe (3) through the magnet block (10), the other side of the hollow pipe (3) is fixedly connected with an air outlet pipe (11).

2. The content measuring device for nitrous oxide production according to claim 1, characterized by: The air outlet pipe (11) is connected with the hollow pipe (3), the surface of the ultrafiltration membrane (9) is fixedly connected with a clamping block, the surface of the push plate (7) is threadedly connected with a threaded rod (12) rotatably connected with the hollow pipe (3) through a bearing seat, the surface of the threaded rod (12) is fixedly connected with a knob, the knob and the threaded rod (12) are rotatably connected in the inside of the lower shell (2).

3. The content measuring device for nitrous oxide production according to claim 1, characterized by: The detection mechanism comprises a mounting groove (13) fixedly connected to the inside of the lower shell (2), the inside of the mounting groove (13) is fixedly connected with a detection shell (14), the surface of the detection shell (14) is provided with a display screen and a control button (15), the inside of the detection shell (14) is fixedly connected with two identical electrochemical sensors (16).

4. The content measuring device for nitrous oxide production according to claim 3, characterized by: The detection mechanism further comprises a sealing plate (17) slidably connected to the inside of the detection shell (14), the two edges of one side of the sealing plate (17) are fixedly connected with an insertion rod (18), the surface of the insertion rod (18) is fixedly connected with an elastic ball, the sealing plate (17) corresponds to the electrochemical sensor (16).

5. The concentration measuring device for nitrous oxide production according to claim 4, characterized by: The middle of the inside of the detection shell (14) is fixedly connected with an isolation plate (19), the surface of the isolation plate (19) is fixedly connected with a sealing paperboard (20), the two electrochemical sensors (16) are fixedly connected to the two sides of the isolation plate (19), and the electrochemical sensor (16) is connected with the air outlet pipe (11).

6. The concentration measuring device for nitrous oxide production according to claim 1, characterized by: One side of the lower shell (2) is fixedly connected with a handle, one side of the inside of the lower shell (2) is inserted with a gas collecting bottle (21), the surface of the gas collecting bottle (21) is threadedly connected with a sealing cover, and the upper shell (1) corresponds to the lower shell (2).

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