CN211905309U

CN211905309U - Analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gases

Info

Publication number: CN211905309U
Application number: CN202020668341.7U
Authority: CN
Inventors: 丁文京
Original assignee: 丁文京
Current assignee: Beijing aibosi Medical Technology Co.,Ltd.
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-10
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses an analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gas, which comprises a shell, and an air inlet pipe, a hydrogen sensor, a methane sensor, a carbon dioxide sensor, a signal converter, a processor and a signal output port which are arranged in the shell; the gas inlet pipe is respectively connected with a hydrogen sensor, a methane sensor and a carbon dioxide sensor, the hydrogen sensor, the methane sensor and the carbon dioxide sensor are respectively connected with a signal converter, the signal converter is connected with a processor, and the processor is respectively connected with a signal output port, a storage module, a power supply module, a display screen and an input module; the hydrogen sensor, the methane sensor and the carbon dioxide sensor are all modular structures capable of being plugged and unplugged. This analytic system can each gaseous composition of short-term test collection gas to can be with the direct storage of data acquisition in the system, system data can also transmit to hospital information system, and is very convenient.

Description

Analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gases

Technical Field

The utility model relates to an expired gas detects technical field, concretely relates to detect hydrogen, methane, carbon dioxide gas's analytic system simultaneously.

Background

Currently, the equipment for measuring the content of hydrogen, methane and carbon dioxide in exhaled breath by using solid-state sensors, which is manufactured by the quintron instrument Company in the United states, is a sensor based on simplified gas chromatography. The device has the following disadvantages:

1. the machine needs to be preheated for 48 hours when being installed for the first time, and then needs to be preheated for 8 hours before being used every day, so that the sensor can be normally used after reaching a certain temperature.

2. The sensor for detecting the gas is very sensitive to moisture in the gas, a drying agent needs to be placed at the front and rear air inlet ends, and the drying agent needs to be replaced frequently.

3. Gas calibration is required after each power-on.

4. The methane sensor has poor stability, data drift after a period of use often cannot pass through correction, and equipment cannot normally operate.

5. The equipment can only display the measured values of the three gases, and a complete inspection result can be displayed by manually drawing pictures on paper.

6. The user cannot input patient information and data of examination results into the machine, nor can he write a reference.

7. The device cannot connect to HIS (hospital information system) of the hospital.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the utility model provides a can detect hydrogen, methane, gaseous analytic system of carbon dioxide simultaneously, can be connected with the HIS of hospital, transmission data, and can input data.

The technical scheme of the utility model is detailed below:

an analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gas comprises a shell, and an air inlet pipe, a hydrogen sensor, a methane sensor, a carbon dioxide sensor, a signal converter, a processor and a signal output port which are arranged in the shell; the gas inlet pipe is respectively connected with a hydrogen sensor, a methane sensor and a carbon dioxide sensor, the hydrogen sensor, the methane sensor and the carbon dioxide sensor are respectively connected with a signal converter, the signal converter is connected with a processor, and the processor is respectively connected with a signal output port, a storage module, a power supply module, a display screen and an input module; the hydrogen sensor, the methane sensor and the carbon dioxide sensor are all modular structures capable of being plugged and unplugged. So that each sensor is convenient to replace.

Alternatively or preferably, in the above analysis system, the hydrogen sensor is an electrochemical hydrogen sensor. Electrochemical hydrogen sensor using large capacity

Alternatively or preferably, in the analysis system, the methane sensor is a laser methane sensor.

Optionally or preferably, in the analysis system, the carbon dioxide sensor is an infrared carbon dioxide sensor resistant to water vapor interference.

Alternatively or preferably, in the above analysis system, the hydrogen sensor, the methane sensor and the carbon dioxide sensor each discharge the gas introduced into the sensor out of the housing through a single exhaust pipe.

Optionally or preferably, in the analysis system, the display screen and the input module are integrated into a touch screen.

Alternatively or preferably, in the analysis system, the hydrogen sensor, the methane sensor and the carbon dioxide sensor are provided with rechargeable batteries. The charge of the rechargeable battery can be displayed on the display screen.

The utility model provides an analytic system has following beneficial effect:

1. the measurement range is expanded: the former hydrogen measuring range of the device is 2-150ppm, the former methane measuring range is 2-75ppm, the former carbon dioxide measuring range is 0.1-7%, the utility model discloses an analytic system hydrogen measuring range is 2-2,000ppm, the former methane measuring range is 1-500ppm, the former carbon dioxide measuring range is 0-15%.

2. By adopting the laser methane sensor, the methane can be measured by starting the device without preheating for 8 hours in advance when the methane is measured.

3. The analysis system is provided with an input module and a storage module, so that the inconvenience that an original table needs to manually copy a detection result and manually draw a detection report chart is overcome, a preset program is arranged in the controller, the detection result can be automatically recorded after a signal of the signal converter is received, the detection report chart can be automatically drawn, stored and displayed, and the detection report chart can be transmitted to an information system of a hospital through a signal output interface.

4. The original equipment needs to be frequently replaced with the drying agent, and the equipment does not need the drying agent due to the adoption of the laser methane sensor and the anti-water vapor carbon dioxide sensor.

Drawings

Fig. 1 is a connection diagram of an analysis system for simultaneously detecting hydrogen, methane, and carbon dioxide in example 1.

Detailed Description

The technical solutions of the present invention will be clearly and completely explained and illustrated in the following drawings and specific examples so that those skilled in the art can better understand and implement the technical solutions.

Example 1

Referring to fig. 1, an embodiment of an analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gas includes a housing (not shown in the figure), and an air inlet pipe, a hydrogen sensor, a methane sensor, a carbon dioxide sensor, a signal converter, a processor and a signal output port which are arranged in the housing; the gas inlet pipe is respectively connected with a hydrogen sensor, a methane sensor and a carbon dioxide sensor, the hydrogen sensor, the methane sensor and the carbon dioxide sensor are respectively connected with a signal converter, the signal converter is connected with a processor, and the processor is respectively connected with a signal output port, a storage module, a power supply module, a display screen and an input module; the hydrogen sensor, the methane sensor and the carbon dioxide sensor are all modular structures capable of being plugged and unplugged.

Wherein, the hydrogen sensor adopts a large-capacity electrochemical hydrogen sensor, such as MX 6H 2 hydrogen sensor (product of Beijing Hongchang science and technology Co., Ltd.), or an electrochemical hydrogen sensor H2-BF (product of English alphasense Co., Ltd.), and the hydrogen measuring range is expanded to 2-2,000 ppm.

The methane sensor adopts a laser methane sensor, and the laser methane sensor is a sensor for measuring by using a laser technology. The laser methane sensor is a novel measuring instrument, and has the advantages of capability of realizing non-contact remote measurement, high speed, high precision, large range, strong light and electric interference resistance and the like. The laser methane sensor can be directly purchased from commercial products, such as the laser methane sensor of Wuhan Liu Jiu sensing technology Co. The methane measurement range is 1-500 ppm.

The carbon dioxide sensor adopts a carbon dioxide sensor resisting water vapor interference, such as QS-CO2-A carbon dioxide gas sensor (product of Qing Sheng electronic technology Co., Ltd., Handan city), and the carbon dioxide measuring range is 0-15%. More preferably, an infrared carbon dioxide sensor is used.

The three sensors respectively discharge the gas entering the sensors out of the shell through an exhaust pipe. In addition, the three sensors can be equipped with rechargeable batteries, and the battery power can be displayed on the display screen. Because the sensor is the detachable module, when battery power is not enough, conveniently change.

The working principle is as follows:

the collected exhaled gas is introduced into an air inlet pipe, is divided into three paths through the air inlet pipe and respectively enters a hydrogen sensor, a methane sensor and a carbon dioxide sensor, after the content of a target detection object in the gas is detected by the three sensors, a content signal is converted into an electric signal to be transmitted to a signal converter, the electric signal transmitted by each sensor is converted into a number by the signal converter, the signal is further processed by a controller (such as automatically drawing a detection report graph according to a preset program) and then the result is directly displayed on a display screen, and meanwhile, the data is stored in a storage module. The gas sample in the sensor is exhausted from the casing through the exhaust pipe after being detected.

The operator can also input case information into the system, select parameters, etc. through an input module, such as a keyboard, mouse, etc. Of course, if a touch screen is used, inputting information can be directly performed on the touch screen.

When detection information needs to be led into an information system of a hospital, the detection information is directly butted with the information system of the hospital through a signal output interface, and data transmission can be completed, so that the detection information system is very convenient.

The inventive concept is explained in detail herein using specific examples, and the above description of the embodiments is only used to help understand the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. An analysis system for simultaneously detecting hydrogen, methane and carbon dioxide gases is characterized by comprising a shell, and an air inlet pipe, a hydrogen sensor, a methane sensor, a carbon dioxide sensor, a signal converter, a processor and a signal output port which are arranged in the shell;

the gas inlet pipe is respectively connected with a hydrogen sensor, a methane sensor and a carbon dioxide sensor, the hydrogen sensor, the methane sensor and the carbon dioxide sensor are respectively connected with a signal converter, the signal converter is connected with a processor, and the processor is respectively connected with a signal output port, a storage module, a power supply module, a display screen and an input module;

the hydrogen sensor, the methane sensor and the carbon dioxide sensor are all modular structures capable of being plugged and unplugged.

2. The analytical system of claim 1, wherein the hydrogen sensor is an electrochemical hydrogen sensor.

3. The analytical system of claim 1, wherein the methane sensor is a laser methane sensor.

4. The analytical system of claim 1, wherein the carbon dioxide sensor is an infrared carbon dioxide sensor resistant to water vapor interference.

5. The analytical system of claim 1, wherein the hydrogen sensor, the methane sensor, and the carbon dioxide sensor each exhaust gas entering the sensor out of the housing through an exhaust pipe.

6. The analytical system of claim 1, wherein the display screen and input module are integrated as a touch screen.

7. The analytical system of claim 1, wherein the hydrogen sensor, the methane sensor, and the carbon dioxide sensor are each provided with a rechargeable battery.