CN218766808U - Oxygen index tester - Google Patents

Abstract

The utility model discloses an oxygen index tester, the on-line screen storage device comprises a base, install combustion chamber and casing on the base respectively, install gaseous input subassembly, gaseous filtering component and gas mixing box in the casing, gaseous input subassembly is through two at least relief pressure valves and gaseous filtering component input intercommunication, gaseous filtering component's output and gas mixing box intercommunication, gaseous mixing box and an oxygen index detection subassembly intercommunication, an oxygen index detection subassembly and combustion chamber intercommunication, gaseous after the relief pressure valve enters into gaseous filtering component, clean gas through filtering component, clear away some dust and impurity, make the gas before mixing more pure just to can eliminate the interference to an oxygen index detection subassembly, guarantee the degree of accuracy that oxygen content detected.

Description

Oxygen index tester

Technical Field

The utility model belongs to the processing field of goods specifically is an oxygen index tester.

Background

The oxygen index performance tester is used for measuring the minimum oxygen concentration required for just maintaining the combustion of a sample in mixed gas of oxygen and nitrogen under specified test conditions, is used for measuring the combustion performance of various forms of textiles (including woven fabrics, knitted fabrics, non-woven fabrics and the like), but is entrained with some dust and impurities due to gas storage and transportation factors, the dust and impurities can be accumulated in a mixing box body, and when the dust and impurities are accumulated to a certain degree, the detection of an oxygen sensor can be interfered, so that the measurement structure is inaccurate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oxygen index tester to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an oxygen index tester comprises a base, wherein a combustion chamber and a machine shell are respectively arranged on the base, and a gas input assembly, a gas filtering assembly and a gas mixing box are arranged in the machine shell;

the gas input assembly is communicated with the input end of the gas filtering assembly through at least two pressure reducing valves, the output end of the gas filtering assembly is communicated with the gas mixing box, the gas mixing box is communicated with the first oxygen index detection assembly, and the first oxygen index detection assembly is communicated with the combustion chamber.

According to a further technical scheme, at least two flow control valves are further arranged between the output end of the gas filtering component and the gas mixing box.

The technical scheme is further that the gas mixing device comprises a stirring assembly, the stirring assembly comprises a motor installed in a machine shell, one end, close to an output shaft, of the motor is fixedly arranged on one side of a gas mixing box, a sealing rubber pad is arranged between the motor and the gas mixing box, and the output shaft of the motor stretches into the gas mixing box and is connected with an impeller.

According to a further technical scheme, a gas flowmeter is further connected between the gas mixing box and the first oxygen index detection assembly.

According to a further technical scheme, the first oxygen index detection assembly comprises a three-way support, wherein two ends of the three-way support are respectively a gas output end and a gas input end, and a third end of the three-way support is connected with the oxygen index sensor.

According to the further technical scheme, the first opening is formed in the combustion chamber, the switch valve is arranged at the first opening, and the switch valve is connected with the output end of the oxygen index detection assembly.

According to the further technical scheme, a second opening is formed in the combustion chamber, and a second oxygen index detection assembly is installed at the second opening.

According to a further technical scheme, the combustion chamber comprises a combustion cylinder, a fixing frame is arranged in the combustion cylinder, a Y-shaped sample clamp is mounted on the fixing frame, and a screen plate is arranged in the middle of the sample clamp.

The utility model has the advantages that:

after the gas enters the gas filtering component through the pressure reducing valve, the gas is cleaned through the filtering component to remove some dust and impurities, so that the gas before mixing is purer, and meanwhile, the dust and the impurities can be prevented from being accumulated in the gas mixing box; the gas enters a gas mixing box for mixing after being filtered, and the first oxygen index detection assembly can detect the oxygen content in the mixed gas; because the gas is filtered before being mixed, the interference on the first oxygen index detection component is eliminated, and the accuracy of oxygen content detection is ensured.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1: the utility model discloses a front view and combustion chamber part cross-section.

FIG. 2: the utility model discloses a casing internal component structure picture.

FIG. 3: the utility model discloses a look sideways at and combustion chamber section view.

FIG. 4: the utility model discloses a stirring subassembly structure schematic diagram.

Reference numerals are as follows: 1-base, 2-combustion chamber, 21-combustion cylinder, 22-fixing frame, 23-sample clamp, 24-switch valve, 25-oxygen index detection component II, 26-screen plate, 31-machine shell, 32-gas input component, 33-gas filter component, 34-gas mixing box, 35-pressure reducing valve, 36-oxygen index detection component I, 361-three-way support, 362-oxygen index sensor, 37-flow control valve, 38-stirring component, 381-motor, 382-sealing rubber pad, 383-impeller and 39-gas flowmeter.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Please refer to fig. 1-4;

the oxygen index tester comprises a base 1, wherein a combustion chamber 2 and a casing 31 are respectively arranged on the base 1, and a gas input assembly 32, a gas filtering assembly 33 and a gas mixing box 34 are arranged in the casing 31; in this embodiment, the gas input assembly 32 can independently input two or more kinds of gases, most commonly nitrogen and oxygen, and take the structural component for inputting oxygen as an example, specifically includes a ball valve switch installed on the side of the housing 31, the ball valve switch is connected with one end of the gas pipe, the other end of the gas pipe is connected with the pressure reducing valve 35, the structure for inputting nitrogen can refer to the structure for inputting oxygen, of course, the kind of the mixed gas is changed or increased according to the actual situation, and if a third or more kinds of gases are required to be added, the structure for inputting oxygen can also refer to the structure for inputting oxygen; each gas input structure is connected with an independent pressure reducing valve 35, and a pressure gauge can be added at the pressure reducing valve 35 to check the gas pressure condition in real time; the gas filtering assembly 33 is at least two independent filters, each filter corresponds to the input of one gas, and the specific number of the filters is increased according to the type of the mixed gas;

the specific gas mixing process is that an external gas source is connected with a ball valve switch, gas enters a gas filtering component 33 through a pressure reducing valve 35 when the ball valve switch is opened, the pressure of the input gas can be increased through a pressure gauge at the moment, the gas pressure can be adjusted according to actual needs, the gas is cleaned through the filtering component, some dust and impurities are removed, the gas before mixing is more pure, and meanwhile the dust and the impurities can be prevented from being accumulated in a gas mixing box 34; the gas enters a gas mixing box 34 for mixing after being filtered, the gas mixing box 34 is communicated with a first oxygen index detection assembly 36 through a gas pipe, the first oxygen index detection assembly 36 is communicated with the combustion chamber 2, the mixed gas enters the combustion chamber 2 after passing through the first oxygen index detection assembly 36, and at the moment, the first oxygen index detection assembly 36 can detect the oxygen content in the mixed gas; because the gas is filtered before being mixed, the interference on the first oxygen index detection assembly 36 is eliminated, and the accuracy of oxygen content detection is ensured.

In addition, a display can be arranged, the data detected by the first oxygen index detection assembly 36 is transmitted to the controller, the data is converted into numerical values through the controller, and the numerical values are displayed through the display, so that the oxygen content in the mixed gas can be more visually seen, and the control of operators on the air inflow of various gases is facilitated.

In this embodiment, the first oxygen index detecting assembly 36 includes a three-way support 361, two ends of the three-way support 361 are a gas output end and a gas input end, respectively, and a third end is connected to the oxygen index sensor 362.

In this embodiment, at least two flow control valves 37 are further disposed between the output end of the gas filtering assembly 33 and the gas mixing box 34, each flow control valve 37 is independent, and the specific number is determined according to other input types.

In this embodiment, a stirring assembly 38 is further provided, so that the gas is more fully mixed; the gas mixing box comprises a motor 381 arranged on one side of the gas mixing box 34, a sealing rubber pad 382 is arranged at the joint between the motor 381 and the gas mixing box 34, and an impeller 383 is connected to the output shaft of the motor 381, which extends into the gas mixing box 34; the agitator assembly 38 may be activated simultaneously with the gas input to agitate the gas stream within the gas mixing box 34 by rotating the impeller 383 to enhance the mixing of the gases.

In this embodiment, a gas flow meter 39 is further connected between the gas mixing box 34 and the first oxygen index detecting element 36, and the gas flow meter 39 may be a glass rotameter, so that the total flow of the mixed gas can be seen in real time.

In this embodiment, in order to avoid inaccurate test results caused by the insufficiently mixed gas entering the combustion chamber 2, the first opening of the combustion chamber 2 is provided with the switching valve 24, the switching valve 24 is connected with the first oxygen index detection assembly 36, after the gas is sufficiently mixed and the adjusted value is stable, the switching valve 24 is opened, further, the combustion chamber 2 is provided with the second opening, the second opening is provided with the second oxygen index detection assembly 25, the oxygen content in the combustion chamber 2 is monitored in real time through the second oxygen index detection assembly 25, the second oxygen index detection assembly 25 can also send detected data to the controller and is displayed through the display, and the data of the first oxygen index detection assembly 36 is combined for comparison, so that the reliability of the test results is improved.

In this embodiment, combustion chamber 2 includes combustion cylinder 21, be equipped with mount 22 in the combustion cylinder 21, install the sample clamp 23 that is "Y" style of calligraphy on the mount 22, the middle part of sample clamp 23 is for connecting the fixed part, upper portion is the clamping part, utilizes the particularity of sample clamp 23 shape, can open the experiment thing, avoids piling up the influence test result to the middle part that is located sample clamp 23 is equipped with otter board 26, prevents that the experiment thing from dripping into on mount 22 at combustion process in the melt, the clearance of being convenient for.

And a diffusion plate is arranged below the screen plate 26, a plurality of glass balls with the diameter of 3-5mm are arranged on the diffusion plate, and the glass beads are used for replacing fine sand stones, so that the mixing effect is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an oxygen index tester, includes base (1), install combustion chamber (2) and casing (31) on base (1) respectively, its characterized in that: install gaseous input subassembly (32), gas filtration subassembly (33) and gas mixing box (34) in casing (31), gaseous input subassembly (32) communicate through at least two relief pressure valves (35) and gas filtration subassembly input, the output and the gas mixing box (34) of gas filtration subassembly (33) communicate, gas mixing box (34) communicate with oxygen index detection subassembly (36), oxygen index detection subassembly (36) communicate with combustion chamber (2).

2. An oxygen index tester as claimed in claim 1, wherein: at least two flow control valves (37) are arranged between the output end of the gas filtering component (33) and the gas mixing box (34).

3. An oxygen index tester as claimed in claim 1, wherein: still include stirring subassembly (38), stirring subassembly (38) are including installing motor (381) in casing (31), the one end that motor (381) are close to the output shaft sets firmly one side at gas mixing box (34) to be located and be equipped with sealed rubber pad (382) between motor (381) and gas mixing box (34), motor (381) output shaft stretches into gas mixing box (34) in-connection has impeller (383).

4. An oxygen index tester as claimed in claim 1, wherein: and a gas flowmeter (39) is also connected between the gas mixing box (34) and the first oxygen index detection assembly (36).

5. An oxygen index tester as claimed in claim 1, wherein: the first oxygen index detection assembly (36) comprises a three-way support (361), two ends of the three-way support (361) are respectively a gas output end and a gas input end, and the third end of the three-way support is connected with an oxygen index sensor (362).

6. An oxygen index tester as claimed in claim 1, wherein: the combustion chamber (2) is provided with a first opening, a switch valve (24) is arranged at the first opening, and the switch valve (24) is connected with the output end of the first oxygen index detection assembly (36).

7. An oxygen index tester as claimed in any one of claims 1 to 6 wherein: and a second opening is formed in the combustion chamber (2), and a second oxygen index detection assembly (25) is installed at the second opening.

8. An oxygen index tester according to claim 7, wherein: the combustion chamber (2) comprises a combustion cylinder (21), a fixing frame (22) is arranged in the combustion cylinder (21), a sample clamp (23) in a Y shape is mounted on the fixing frame (22), and a screen plate (26) is arranged in the middle of the sample clamp (23).

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