Kiln corrosion resistance timing detection oxygen meter

Abstract

The utility model discloses an oxygen meter for regularly detecting corrosion resistance of a kiln. The device comprises an exhaust pipe, a filter box connected to the exhaust pipe, an oxygen measuring sensor connected to one side of the filter box, a flow meter connected to one side of the oxygen measuring sensor, an acid and alkali resistant diaphragm pump connected to one side of the flow meter, and a discharge port connected to the acid and alkali resistant diaphragm pump, the filter box can filter water vapor and foreign matter in gas, one side of the exhaust pipe is further connected with a one-way valve, after the oxygen measuring sensor makes contact with the exhausted gas, the measured oxygen concentration is converted into-MA current signals which are transmitted to the control panel, and the oxygen concentration is calculated through simulation. The oxygen concentration value is displayed on the liquid crystal display; the equipment adopts the acid and alkali resistant diaphragm pump to mainly prevent water vapor with strong alkali and strong acid from entering the diaphragm pump due to product reasons to damage the diaphragm and further to damage the oxygen meter.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen meters, in particular to a kiln corrosion-resistant timing detection oxygen meter. Background Art

[0002] A kiln is a device used to produce lithium battery cathode materials. It is generally made of refractory bricks and can be made into various sizes according to needs. It is generally heated by electricity. In practical applications, for example, when producing ternary materials, sufficient oxygen is required for chemical reactions, and when producing lithium iron phosphate materials, nitrogen is required for protection. The production of both materials requires the measurement and analysis of the oxygen content in each area of ​​the kiln.

[0003] Due to the large amount of water vapor in the kiln and the strong alkalinity of the product characteristics, the water vapor passes through the existing diaphragm vacuum pump, which will cause corrosion and damage to the pump diaphragm over time, making it impossible to detect the oxygen content normally. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing kiln corrosion resistance timing detection oxygen meter, the present utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a kiln corrosion resistance timing detection oxygen meter. When using this device, the equipment is powered on and starts working. The acid and alkali resistant diaphragm pump extracts the gas. The gas passes through a one-way valve and enters the filter box, where some moisture and foreign matter are filtered out. After passing through the oxygen sensor, the measured oxygen concentration is converted into a 4-20MA current signal and transmitted to the control board. The oxygen concentration is calculated through analog quantity and displayed on the LCD before being discharged from the outlet. The acid and alkali resistant diaphragm pump uses an acid and alkali resistant diaphragm pump with a 12V brushless DC motor. Through the PWM speed control switch, the duty cycle can be adjusted to achieve the purpose of motor speed regulation, thereby adjusting the flow of the vacuum pump. The flow is displayed by a mechanical flow meter. The flow adjustment range is to reduce the flow as much as possible without affecting the oxygen concentration measurement. At the same time, it can also reduce the introduction of water vapor into the equipment, thereby achieving the purpose of protecting the equipment and reducing equipment failures. The acid and alkali resistant diaphragm pump is used in this equipment mainly to prevent water vapor with strong alkali and strong acid from entering the diaphragm pump due to product reasons, damaging the diaphragm and causing damage to the oxygen meter.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A kiln corrosion resistance timing detection oxygen meter includes an exhaust pipe, a filter box connected to the exhaust pipe, an oxygen sensor connected to one side of the filter box, a flow meter connected to one side of the oxygen sensor, an acid and alkali resistant diaphragm pump connected to one side of the flow meter, and an exhaust port connected to the acid and alkali resistant diaphragm pump. The filter box can filter out water vapor and foreign matter in the gas, and a one-way valve is also connected to one side of the exhaust pipe.

[0009] As a preferred solution of the kiln corrosion resistance timing detection oxygen meter described in the utility model, after the oxygen sensor contacts the extracted gas, the measured oxygen concentration is converted into a -MA current signal and transmitted to the control board, the oxygen concentration is calculated through simulation, and the oxygen concentration value is displayed on the LCD.

[0010] As a preferred solution of the kiln corrosion resistance timing detection oxygen meter described in the utility model, the acid and alkali resistant diaphragm pump is equipped with a PWM speed control switch, which can achieve the purpose of motor speed regulation by adjusting the duty cycle, thereby adjusting the flow of the vacuum pump.

[0011] As a preferred solution of the kiln corrosion resistance timing detection oxygen meter described in the utility model, the acid and alkali resistant diaphragm pump is equipped with a Bluetooth timing switch, which can control the device to turn on once every hour and turn off after 1 minute, so as to achieve the purpose of timing measurement of oxygen concentration.

[0012] As a preferred solution of the kiln corrosion resistance timing detection oxygen meter described in the utility model, the filter box includes a hinged sealing door, a card plate symmetrically fixed in the inner cavity of the filter box, a filter mesh clamped on the card plate, a drying plate clamped on the card plate, and an activated carbon plate clamped on the card plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: when the device is used, the device is powered on and starts working, and the acid- and alkali-resistant diaphragm pump extracts the gas. The gas passes through a one-way valve and enters the filter box, where some moisture and foreign matter are filtered out. After passing through the oxygen sensor, the measured oxygen concentration is converted into a 4-20MA current signal, transmitted to the control board, and the oxygen concentration is calculated through analog quantity. The oxygen concentration value is displayed on the LCD display, and finally discharged from the outlet. The acid- and alkali-resistant diaphragm pump uses an acid- and alkali-resistant diaphragm pump with a 12V brushless DC motor. Through the PWM speed control switch, the duty cycle can be adjusted to achieve the purpose of motor speed regulation, thereby adjusting the flow of the vacuum pump. The flow is displayed by a mechanical flow meter. The flow adjustment range is to reduce the flow as much as possible without affecting the oxygen concentration measurement. At the same time, it can also reduce the introduction of water vapor into the device, thereby achieving the purpose of protecting the device and reducing equipment failures. The device uses an acid- and alkali-resistant diaphragm pump mainly to prevent water vapor with strong alkali and strong acid from entering the diaphragm pump due to product reasons, damaging the diaphragm, and causing damage to the oxygen meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of a kiln corrosion resistance timing detection oxygen meter of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a filter box of a kiln corrosion resistance timing detection oxygen meter according to the present invention. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] The utility model provides a kiln corrosion resistance timing detection oxygen meter. When the device is used, the device is powered on and starts working. An acid- and alkali-resistant diaphragm pump extracts gas. The gas passes through a one-way valve and enters a filter box, where some moisture and foreign matter are filtered out. The gas then passes through an oxygen sensor, converting the measured oxygen concentration into a 4-20mA current signal. The signal is transmitted to a control panel, where the oxygen concentration is calculated through analog quantity and displayed on a liquid crystal display. The gas is finally discharged from a discharge port. The acid- and alkali-resistant diaphragm pump uses a 12V brushless DC motor. The motor speed is regulated by adjusting the duty cycle through a PWM speed control switch, thereby adjusting the flow rate of the pump. The flow rate is displayed by a mechanical flow meter. The flow rate adjustment range is to minimize the flow rate without affecting the oxygen concentration measurement. This also reduces the introduction of water vapor into the device, thereby protecting the device and reducing equipment failures. The acid- and alkali-resistant diaphragm pump is used in this device to prevent water vapor containing strong alkalis and acids from entering the diaphragm pump due to product problems, damaging the diaphragm and causing damage to the oxygen meter.

[0021] Figure 1-Figure 2 The figure shows the overall structure of an embodiment of a furnace corrosion resistance timing detection oxygen meter of the utility model. Figure 1-Figure 2 The present embodiment is a furnace corrosion resistance timing detection oxygen meter, the main part of which includes:

[0022] The filter box 2 includes an air extraction pipe 1, a filter box 2 connected to the air extraction pipe 1, an oxygen sensor 3 connected to one side of the filter box 2, a flow meter 4 connected to one side of the oxygen sensor 3, an acid- and alkali-resistant diaphragm pump 5 connected to one side of the flow meter 4, and an exhaust port 6 connected to the acid- and alkali-resistant diaphragm pump 5. The filter box 2 can filter out water vapor and foreign matter from the gas. A one-way valve 11 is also connected to one side of the air extraction pipe 1. The filter box 2 includes a hinged sealing door 21, a clamping plate 22 symmetrically fixed within the inner cavity of the filter box 2, a filter screen 23 clamped to the clamping plate 22, a drying plate 24 clamped to the clamping plate 22, and an activated carbon plate 25 clamped to the clamping plate 22.

[0023] Among them, after the oxygen sensor 3 contacts the extracted gas, it converts the measured oxygen concentration into a 4-20MA current signal and transmits it to the control board. The oxygen concentration is calculated through simulation and displayed on the LCD.

[0024] The acid and alkali resistant diaphragm pump 5 is equipped with a PWM speed control switch, which can adjust the duty cycle to achieve the purpose of motor speed regulation, thereby adjusting the flow rate of the vacuum pump;

[0025] The acid and alkali resistant diaphragm pump 5 is equipped with a Bluetooth timer switch, which can control the device to turn on once every hour and turn off after 15 minutes, so as to achieve the purpose of measuring oxygen concentration at regular intervals.

[0026] Combine Figure 1-Figure 2 , a kiln corrosion resistance timing detection oxygen meter according to the present embodiment, the specific use process is as follows: when using this device, the equipment is powered on and starts working, the acid and alkali resistant diaphragm pump 5 extracts the gas, the gas passes through the one-way valve 11, enters the filter box 2, passes through the filter mesh 23 to filter out solid impurities, passes through the drying plate 24 to reduce moisture, passes through the activated carbon plate 25 to filter out odor, passes through the oxygen sensor 3, and converts the measured oxygen concentration into a 4-20MA current signal, which is transmitted to the control board, and the oxygen concentration is calculated through analog quantity, and the oxygen concentration value is displayed on the LCD display, and finally discharged from the outlet 6. The acid and alkali resistant diaphragm pump 5 adopts an acid and alkali resistant diaphragm pump with a 12V brushless DC motor. Through the PWM speed control switch 51, the duty cycle can be adjusted to achieve the purpose of motor speed regulation, so that the flow of the vacuum pump can be adjusted, and the flow is displayed by the mechanical flow meter. The flow adjustment range is to reduce the flow as much as possible without affecting the oxygen concentration measurement, and at the same time, it can also reduce the introduction of water vapor into the equipment, thereby achieving the purpose of protecting the equipment and reducing equipment failure. The equipment uses an acid- and alkali-resistant diaphragm pump mainly to prevent water vapor with strong alkali and acid from entering the diaphragm pump due to product reasons, damaging the diaphragm and causing damage to the oxygen meter.

[0027] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A kiln corrosion resistance timing detection oxygen meter, characterized in that: The invention comprises an air extraction pipe (1), a filter box (2) connected to the air extraction pipe (1), an oxygen sensor (3) connected to one side of the filter box (2), a flow meter (4) connected to one side of the oxygen sensor (3), an acid- and alkali-resistant diaphragm pump (5) connected to one side of the flow meter (4), and an outlet (6) connected to the acid- and alkali-resistant diaphragm pump (5). The filter box (2) can filter out water vapor and foreign matter in the gas. A one-way valve (11) is also connected to one side of the air extraction pipe (1).

2. A furnace corrosion resistance timing detection oxygen meter according to claim 1, characterized in that: After the oxygen sensor (3) contacts the extracted gas, it converts the measured oxygen concentration into a 4-20MA current signal and transmits it to the control board, calculates the oxygen concentration through simulation, and displays the oxygen concentration value on the liquid crystal display.

3. The kiln corrosion resistance timing detection oxygen meter according to claim 1 is characterized in that: The acid and alkali resistant diaphragm pump (5) is provided with a PWM speed regulating switch (51), which can adjust the duty cycle to achieve the purpose of motor speed regulation, thereby adjusting the flow rate of the air extraction pump.

4. The kiln corrosion resistance timing detection oxygen meter according to claim 1 is characterized in that: The acid and alkali resistant diaphragm pump (5) is equipped with a Bluetooth timer switch, which can control the device to turn on once every hour and turn off after 15 minutes, thereby achieving the purpose of timing the measurement of oxygen concentration.

5. The kiln corrosion resistance timing detection oxygen meter according to claim 1 is characterized in that: The filter box (2) comprises a hinged sealing door (21), a clamping plate (22) symmetrically fixed in the inner cavity of the filter box (2), a filter screen (23) clamped on the clamping plate (22), a drying plate (24) clamped on the clamping plate (22), and an activated carbon plate (25) clamped on the clamping plate (22).

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