An oxygen analyzer

Abstract

The application discloses an oxygen analyzer, characterized in that the oxygen analyzer comprises a cabinet, a plurality of channels are arranged in the cabinet, an oxygen module is slidably arranged in each channel, a switching power supply module and an adapter plate are further arranged in the cabinet, the power supply end of the oxygen module is in contact with the adapter plate when the oxygen module slides to the bottom of the channel, and the power supply end of the oxygen module is electrically connected with the switching power supply module through the adapter plate. In the application, the oxygen module is slidably connected in the channel, so that the number of channels of the oxygen analyzer can be flexibly changed, and the maintenance and replacement of the oxygen analyzer are greatly facilitated. The application is provided with a display controller, the signal of the oxygen module can be processed, and the signal can be displayed on the display controller.

Description

Technical Field

[0001] This invention belongs to the field of oxygen concentration measurement, and specifically relates to an oxygen analyzer. Background Technology

[0002] Oxygen concentration testing refers to the measurement of oxygen concentration in sealed bags, bottles, cans, and other hollow packaging containers. Oxygen concentration testing is suitable for use in production lines, warehouses, and laboratories, allowing for rapid and accurate evaluation of the content and proportion of gas components, thereby guiding production and ensuring product shelf life.

[0003] In existing technologies, oxygen concentration detection equipment has a complex structure. Each additional channel increases the equipment's size, making it impossible to achieve multi-channel measurement without increasing the overall volume. Therefore, existing technologies for multi-channel measurement suffer from problems such as large equipment footprint, complex internal structure, and high error rates. Summary of the Invention

[0004] In view of the above-mentioned shortcomings in the prior art, the present invention provides an oxygen analyzer that solves the problems in the prior art.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: an oxygen analyzer, including a chassis;

[0006] The chassis has several channels inside, and an oxygen module is slidably installed in each channel.

[0007] The chassis also houses a switching power supply module and an adapter board. When the oxygen module slides to the bottom of the channel, the power supply terminal of the oxygen module contacts the adapter board, and the power supply terminal of the oxygen module is electrically connected to the switching power supply module through the adapter board.

[0008] Furthermore, the chassis includes a chassis cover, a front panel, and a chassis body;

[0009] The main body of the chassis is a rectangular box with two parallel sides and an opening on the top. The shape of the chassis cover plate matches the opening on the main body of the chassis, and the chassis cover plate is connected to the main body of the chassis. The front panel is located on the side of the main body of the chassis that has no opening. A channel entrance is provided on the side of the main body of the chassis that is away from the front panel.

[0010] The oxygen module is installed at the entrance of the channel and inside the channel.

[0011] Furthermore, a display controller is embedded in the front panel.

[0012] Furthermore, the display controller includes a control module and a display module electrically connected to the control module;

[0013] When the oxygen module slides to the bottom of the channel, the signal terminal of the oxygen module contacts the adapter plate, and the signal terminal of the oxygen module is electrically connected to the control module through the adapter plate.

[0014] Furthermore, the display controller is electrically connected to the switching power supply module.

[0015] Furthermore, a first heat dissipation vent and a second heat dissipation vent are respectively provided on the two sides of the chassis cover.

[0016] Furthermore, a heat sink is provided on the first heat dissipation port, and the heat sink is electrically connected to the display controller to realize the control and power supply of the heat sink.

[0017] Furthermore, the bottom surface of the main body of the chassis is evenly provided with several support feet.

[0018] Furthermore, it also includes a signal output module, which is electrically connected to the control module.

[0019] The beneficial effects of this invention are as follows:

[0020] (1) The present invention provides an oxygen analyzer that enables multi-channel oxygen concentration analysis and adopts a modular form, which greatly reduces the volume of the multi-channel oxygen concentration analyzer.

[0021] (2) In this invention, the oxygen module is slidably connected in the channel, so that the number of channels of the oxygen analyzer can be flexibly changed. Without changing the volume, oxygen modules can be freely added to realize multi-channel measurement, which greatly facilitates the maintenance and replacement of the oxygen analyzer.

[0022] (3) The present invention is provided with a display controller, which can process the signals of the oxygen module and display them on the display controller. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an oxygen analyzer provided in an embodiment of the present invention.

[0024] Figure 2 This is a top-exploded view of an oxygen analyzer provided in an embodiment of the present invention.

[0025] Figure 3 This is a first exploded view of an oxygen analyzer provided in an embodiment of the present invention.

[0026] Figure 4 This is a second exploded view of an oxygen analyzer provided in an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the outer casing of an oxygen module provided in an embodiment of the present invention.

[0028] Figure 6 This is a first structural schematic diagram of an oxygen module provided in an embodiment of the present invention.

[0029] Figure 7 This is a front view of the oxygen module provided in an embodiment of the present invention.

[0030] Figure 8 This is a schematic diagram of the second structure of the oxygen module provided in an embodiment of the present invention.

[0031] Figure 9 This is a schematic diagram of the connection between the adapter board and the probe board provided in an embodiment of the present invention.

[0032] Figure 10 This is a schematic diagram of the principle of an electronic flow meter provided in an embodiment of the present invention.

[0033] Among them, 1-chassis, 2-display controller, 3-heat sink, 4-chassis cover, 5-front panel, 6-chassis body, 7-channel, 8-oxygen module, 9-switching power supply module, 10-signal output module, 11-first heat dissipation vent, 12-second heat dissipation vent, 13-adapter board, 14-outer shell, 15-air inlet, 16-test chamber, 17-oxygen concentration sensor, 18-adapter pipe, 19-air inlet pipe, 20-electronic flow meter test chamber, 21-extraction... 22-Air pump, 23-Air outlet, 24-Probe plate, 25-Electronic flow meter sensor plate, 26-Spare plate, 27-Controller, 28-Inlet end, 29-Outlet end, 30-Air chamber, 31-First tee pipe, 32-First pressure sensor, 33-Air resistance, 34-Second tee pipe, 35-Second pressure sensor, 36-First circulation end, 37-Suction end, 38-Exhaust end, 39-Second circulation end, 40-Output pipe.

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figure 1, Figure 2 , Figure 3 and Figure 4 As shown, an oxygen analyzer includes a chassis 1; the chassis 1 has a plurality of channels 7 inside, and an oxygen module 8 is slidably disposed in each channel 7; the chassis 1 also has a switching power supply module 9 and an adapter plate 13 inside, when the oxygen module 8 slides to the bottom of the channel 7, the power terminal of the oxygen module 8 contacts the adapter plate 13, and the power terminal of the oxygen module 8 is electrically connected to the switching power supply module 9 through the adapter plate 13.

[0038] You can set up N*M channels, for example, set up 3*4 channels to form a 3x4 channel matrix to achieve multi-channel measurement.

[0039] In this embodiment, the chassis 1 includes a chassis cover 4, a front panel 5, and a chassis body 6; the chassis body 6 is a rectangular box with two parallel sides and an opening on the top surface; the shape of the chassis cover 4 matches the opening on the chassis body 6, and the chassis cover 4 is connected to the chassis body 6; the front panel 5 is located on the side of the chassis body 6 that has no opening; a channel entrance 7 is provided on the side of the chassis body 6 away from the front panel 5; the oxygen module 8 passes through the channel entrance and is located within the channel 7.

[0040] In this embodiment, a display controller 2 is embedded in the front panel 5.

[0041] In this embodiment, the display controller 2 includes a control module and a display module electrically connected to the control module; when the oxygen module 8 slides to the bottom of the channel 7, the signal terminal of the oxygen module 8 contacts the adapter plate 13, and the signal terminal of the oxygen module 8 is electrically connected to the control module through the adapter plate 13.

[0042] In this embodiment, the display controller 2 is electrically connected to the switching power supply module 9.

[0043] In this embodiment, a first heat dissipation vent 11 and a second heat dissipation vent 12 are respectively provided on the two sides of the chassis cover plate 4.

[0044] In this embodiment, a heat sink 3 is provided on the first heat dissipation port 11. The heat sink 3 is electrically connected to the display controller 2 to realize the control and power supply of the heat sink 3.

[0045] In this embodiment, the bottom surface of the chassis body 6 is evenly provided with a plurality of support feet.

[0046] In this embodiment, the oxygen analyzer further includes a signal output module 10, which is electrically connected to the control module. For example, the signal output module 10 can be an RS232 output circuit to realize the signal output of the display controller 2.

[0047] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in the figure, this embodiment provides an oxygen module 8, which includes a housing 14, an air inlet 15, a test chamber 16, an oxygen concentration sensor 17, an adapter pipe 18, an air inlet pipe 19, an electronic flow meter, a vacuum pump 21, an air outlet pipe 22, an air outlet 23, a probe plate 24, and a controller 27; the electronic flow meter includes an electronic flow meter test chamber 20 and an electronic flow meter sensor plate 25.

[0048] The test chamber 16, oxygen concentration sensor 17, adapter pipe 18, air inlet pipe 19, electronic flow meter test chamber 20, air pump 21, air outlet pipe 22, electronic flow meter sensor board 25, and controller 27 are all located inside the housing 14; the air inlet 15, air outlet 23, and probe plate 24 are located on the outer surface of the housing 14.

[0049] The air inlet 15 is connected to the test chamber 16, which is connected to the oxygen concentration sensor 17, and the test chamber 16 is connected to the air inlet pipe 19 via the adapter pipe 18; the air inlet pipe 19 is connected to the air inlet end of the electronic flow meter test chamber 20, the circulation end of the electronic flow meter test chamber 20 is connected to the air pump 21, the air outlet end of the electronic flow meter test chamber 20 is connected to the air outlet pipe 22, and the air outlet pipe 22 is connected to the air outlet 23.

[0050] The electronic flow meter sensor board 25 includes a pressure sensor, which is embedded in the electronic flow meter test chamber 20, and the sensing part of the pressure sensor is located inside the electronic flow meter test chamber 20; the oxygen concentration sensor 17, the air pump 21 and the electronic flow meter sensor board 25 are all electrically connected to the controller 27, and the controller 27 is electrically connected to the probe board 24.

[0051] It is worth noting that in the above connection relationship, the connection between any two components can be sealed to ensure that the circuit between the air inlet 15 and the air outlet 23 is a sealed circuit, thereby ensuring the accuracy of oxygen concentration measurement.

[0052] The air inlet 15 can be located on the outer surface of the housing 14 and pass through the housing 14 to connect to the test chamber 16. The air outlet 23 can also be located on the outer surface of the housing 14 and pass through the housing 14 to connect to the air outlet pipe 22.

[0053] In this embodiment, the probe board 24 includes a first wiring area and a second wiring area. The first wiring area includes a power interface and a signal transmission interface, and the second wiring area includes a power interface and a signal transmission interface. The power interface is electrically connected to the controller 27, and the signal transmission interface is electrically connected to the controller 27. The first wiring area and the second wiring area are centrally symmetrical.

[0054] Optionally, the adapter board 13 can be equipped with a third wiring area corresponding to the first wiring area and a fourth wiring area corresponding to the second wiring area. The third wiring area can be equipped with power pins for use with the power interface and signal pins for use with the signal transmission interface. The power pins are electrically connected to the switching power supply module 9, and the signal pins are electrically connected to the display controller 2. The fourth wiring area is left blank. Therefore, when the oxygen module 8 slides to the bottom of the channel 7, regardless of whether the first wiring area is facing the third wiring area or the second wiring area is facing the third wiring area, power can be supplied to the oxygen module 8 and the signal from the oxygen module 8 can be transmitted to the display controller 2. That is, the power supply terminal of the oxygen module 8 is connected to the switching power supply module 9 through the adapter board 13, and the signal terminal of the oxygen module 8 is connected to the control module of the display controller 2. The control module then transmits the signal to the display module for display.

[0055] The above configuration allows the oxygen module 8 to be inserted into the channel 7 more easily. It is worth noting that the adapter plate 13 has a third wiring area and a fourth wiring area corresponding to the bottom of each channel 7, and the wiring in each third wiring area is independent.

[0056] like Figure 9 As shown, a contact array with two columns and four rows can be configured, with two contacts per row. The first and second rows form the first wiring area, and the third and fourth rows form the second wiring area. The first contact of the first and second rows serves as the power interface, and the second contact of the first and second rows serves as the signal transmission interface. The first contact of the third and fourth rows serves as the signal transmission interface, and the second contact of the third and fourth rows serves as the power contact. Both power and signal transmission interfaces are provided to meet the power supply and signal transmission requirements of the controller 27, enabling the controller 27 to transmit signals to an external host computer.

[0057] For example, the third wiring area is provided with power pins corresponding to the power interface and signal pins corresponding to the signal transmission interface. When the oxygen module 8 slides to the bottom of the channel 7, the power pins contact the power interface in the first or second wiring area, and the signal pins contact the signal transmission interface in the first or second wiring area.

[0058] like Figure 10As shown, the electronic flow meter test chamber 20 includes an inlet end 28, an outlet end 29, an air chamber 30, a first three-way pipe 31, a first pressure sensor 32, an air resistance 33, a second three-way pipe 34, a second pressure sensor 35, a first circulation end 36, a second circulation end 39, and an output pipe 40.

[0059] The air inlet 28 is connected to the air chamber 30, and the first port of the first three-way pipe 31 is connected to the air chamber 30; the second port of the first three-way pipe 31 is connected to the first pressure sensor 32, and the connection between the second port of the first three-way pipe 31 and the first pressure sensor 32 is sealed; the third port of the first three-way pipe 31 is connected to the first port of the second three-way pipe 34 through the air resistance 33; the second port of the second three-way pipe 34 is connected to the second pressure sensor 35, and the connection between the second port of the second three-way pipe 34 and the second pressure sensor 35 is sealed; the third port of the second three-way pipe 34 is connected to the first circulation end 36; the second circulation end 39 is connected to one end of the output pipe 40; and the other end of the output pipe 40 is connected to the air outlet 29.

[0060] In this embodiment, the air inlet 28 is connected to the air inlet pipe 19, the air outlet 29 is connected to the air outlet pipe 22, the first circulation end 36 is connected to the air extraction end 37 of the air pump 21, and the second circulation end 39 is connected to the air exhaust end 38 of the air pump 21.

[0061] In this embodiment, the oxygen module 8 further includes a spacer plate 26, which has holes. The air inlet pipe 19 passes through the holes and is connected to the electronic flow meter test chamber 20. The air outlet pipe 22 passes through the holes and is connected to the electronic flow meter test chamber 20.

[0062] The electronic flowmeter test chamber 20 and the air pump 21 are separated from the oxygen concentration sensor 17 by the partition plate 26, so that the oxygen concentration sensor 17 works in a separate space, avoiding the problem of other devices malfunctioning due to the large amount of heat generated by the oxygen concentration sensor 17.

[0063] In this embodiment, the air inlet 15 is threadedly connected to the test chamber 16, and the connection between the air inlet 15 and the test chamber 16 is sealed.

[0064] In this embodiment, the test chamber 16 is threadedly connected to the oxygen concentration sensor 17, and the connection between the test chamber 16 and the oxygen concentration sensor 17 is axially sealed by a fluororubber gasket.

[0065] In this embodiment, the test chamber 16 is welded to the adapter pipe 18, and the adapter pipe 18 is welded to the air intake pipe 19.

[0066] In this embodiment, the air inlet pipe 19 and the air inlet end of the electronic flow meter test chamber 20 are radially sealed by a cap and a sleeve.

[0067] In this embodiment, the outlet end of the electronic flowmeter test chamber 20 is welded to the outlet pipe 22, and a sealing ring is provided at the connection between the outlet end of the electronic flowmeter test chamber 20 and the outlet pipe 22.

[0068] Optionally, the electronic flow meter test chamber 20 and the air pump 21 can be connected by a pipeline. If there is an interface between the two pipelines, the interface should be sealed.

[0069] By sealing the connection points between the two components, the airtightness of the entire gas circuit is ensured, enabling more accurate oxygen concentration measurement. It is worth noting that the "component" can be any one of the following: inlet 15, test chamber 16, oxygen concentration sensor 17, adapter pipe 18, inlet pipe 19, electronic flowmeter test chamber 20, vacuum pump 21, outlet pipe 22, and outlet 23.

[0070] In this embodiment, the outer casing 14 is provided with a plurality of heat dissipation holes.

[0071] By providing several heat dissipation holes on the housing 14, the heat generated by the components inside the housing 14 can be effectively dissipated, avoiding excessively high temperatures inside the housing 14, thereby ensuring the service life and measurement accuracy of the oxygen module 8.

[0072] This invention provides an oxygen module 8 that enables rapid detection of oxygen concentration in the surrounding environment. The invention includes a probe plate for convenient signal output and power input from the oxygen concentration sensor, and also incorporates an electronic flowmeter test chamber and an electronic flowmeter sensor board to measure gas flow rate.

[0073] The working principle of this invention is as follows:

[0074] Step 1: The signal output of the controller 27 is transmitted through the probe plate 24. The controller 27 collects the signals from the oxygen concentration sensor 17, the first pressure sensor 32, and the second pressure sensor 35, and connects the air inlet 15 to the pipeline or environment of the oxygen to be tested.

[0075] Step 2: Control the air pump 21 to start working via controller 27 to begin oxygen concentration measurement.

[0076] It is worth noting that all components requiring power must be powered on before measuring oxygen concentration to ensure their proper functioning.

[0077] Step 3: Under the action of the air pump 21, the mixed gas enters the test chamber 16 from the air inlet 15. At this time, the oxygen concentration sensor 17, which is connected to the test chamber 16, starts to work. After measuring the oxygen concentration through the oxygen concentration sensor 17, the measurement signal is transmitted to the controller 27, thus initially realizing the oxygen concentration measurement.

[0078] Step 4: The mixed gas continues to flow under the action of the vacuum pump 21. After flowing from the test chamber 16 through the adapter pipe 18 and the inlet pipe 19, it reaches the inside of the electronic flow meter test chamber 20. At this time, the first pressure sensor 32 and the second pressure sensor 35 begin to measure the incoming gas, and the mixed gas continues to flow to the vacuum pump 21, from which it flows back into the electronic flow meter test chamber 20, and then flows out through the outlet pipe 22.

[0079] Step 5: The measured mixed gas flows from the outlet pipe 22 to the outlet 23 for gas discharge.

[0080] During this process, the pressure value signals measured by the first pressure sensor 32 and the second pressure sensor 35 are transmitted to the controller 27, and the gas flow rate can be obtained based on the pressure value signals.

[0081] When measuring oxygen concentration, the gas is metered, thereby allowing the oxygen concentration per unit volume to be measured, which expands the application scenarios of the oxygen module 8 provided by this invention.

[0082] A guide rail can be installed inside the channel 7, and the outer shell 14 of the oxygen module 8 is configured to fit the guide rail so that the oxygen module 8 can slide into the channel 7 from the guide rail, thereby realizing the pin contact between the probe plate 24 and the adapter plate 13.

[0083] Based on the structure described in this embodiment, the working principle of the present invention is as follows:

[0084] 1. Select the required measurement channel, insert the oxygen module 8 into the measurement channel, and electrically connect the oxygen module 8 to the switching power supply module 9 and the display controller 2.

[0085] 2. The oxygen concentration is measured by the oxygen module 8, and the measurement signal is transmitted to the display controller 2. The display controller 2 processes and displays the signal.

[0086] During the measurement process, the heat sink 3 dissipates heat from the chassis 1 to ensure the normal operation and service life of the oxygen analyzer.

[0087] This invention provides an oxygen analyzer that enables multi-channel oxygen concentration analysis. Its modular design simplifies the wiring and significantly reduces the size of the multi-channel oxygen analyzer. In this invention, the oxygen module is slidably connected within the channels, allowing for flexible adjustment of the number of channels and greatly facilitating maintenance and replacement. This invention also includes a display controller that processes the signals from the oxygen module and displays them on the controller.

Claims

1. An oxygen analyzer, characterized in that, Including the chassis (1); The chassis (1) is provided with several channels (7), and an oxygen module (8) is slidably disposed in each channel (7). The chassis (1) is also equipped with a switching power supply module (9) and an adapter plate (13). When the oxygen module (8) slides to the bottom of the channel (7), the power supply end of the oxygen module (8) contacts the adapter plate (13), and the power supply end of the oxygen module (8) is electrically connected to the switching power supply module (9) through the adapter plate (13). The oxygen module (8) includes a probe plate (24) and a controller (27), wherein the controller (27) is electrically connected to the probe plate (24); The probe board (24) includes a first wiring area and a second wiring area. The first wiring area includes a power interface and a signal transmission interface. The second wiring area includes a power interface and a signal transmission interface. The power interface is electrically connected to the controller (27). The signal transmission interface is electrically connected to the controller (27). The first wiring area and the second wiring area are centrally symmetrical. The adapter board (13) is provided with a third wiring area corresponding to the first wiring area and a fourth wiring area corresponding to the second wiring area. The third wiring area is provided with power pins for use with the power interface and signal pins for use with the signal transmission interface. The power pins are electrically connected to the switching power supply module (9). The fourth wiring area is set to blank. The system consists of a contact array with two columns and four rows, with two contacts in each row. The first and second rows form the first wiring area, and the third and fourth rows form the second wiring area. The first contact in the first and second rows serves as the power interface, the second contact in the first and second rows serves as the signal transmission interface, the first contact in the third and fourth rows serves as the signal transmission interface, and the second contact in the third and fourth rows serves as the power interface.

2. The oxygen analyzer according to claim 1, characterized in that, The chassis (1) includes a chassis cover (4), a front panel (5), and a chassis body (6); The chassis body (6) is a rectangular box with two parallel sides and an opening on the top. The shape of the chassis cover (4) matches the opening on the chassis body (6), and the chassis cover (4) is connected to the chassis body (6). The front panel (5) is located on the side of the chassis body (6) that is not open. The side of the chassis body (6) away from the front panel (5) has a channel entrance (7). The oxygen module (8) is installed at the entrance of the channel and inside the channel (7).

3. The oxygen analyzer according to claim 2, characterized in that, The front panel (5) is embedded with a display controller (2).

4. The oxygen analyzer according to claim 3, characterized in that, The display controller (2) includes a control module and a display module electrically connected to the control module; When the oxygen module (8) slides to the bottom of the channel (7), the signal terminal of the oxygen module (8) contacts the adapter plate (13), and the signal terminal of the oxygen module (8) is electrically connected to the control module through the adapter plate (13).

5. The oxygen analyzer according to claim 4, characterized in that, The display controller (2) is electrically connected to the switching power supply module (9).

6. The oxygen analyzer according to claim 2, characterized in that, The chassis cover (4) has a first heat dissipation vent (11) and a second heat dissipation vent (12) on its two sides respectively.

7. The oxygen analyzer according to claim 6, characterized in that, A heat sink (3) is provided on the first heat dissipation port (11), and the heat sink (3) is electrically connected to the display controller (2) to realize the control and power supply of the heat sink (3).

8. The oxygen analyzer according to claim 2, characterized in that, The bottom surface of the main body of the chassis (6) is evenly provided with several support feet.

9. The oxygen analyzer according to claim 4, characterized in that, It also includes a signal output module (10), which is electrically connected to the control module.

Images