Device for rapidly detecting acid return of silicone oil

Abstract

The utility model provides a device for rapidly detecting acid return of silicone oil, relates to the technical field of analysis and detection, and solves the technical problems that the time for waiting for acid return of the silicone oil is too long and data is seriously lagged in the existing detection of the acid return of the silicone oil. The device comprises a container used for containing samples, a heating device used for heating the container, a flow collecting cover used for collecting gas escaping from the container and a test paper box arranged on the flow collecting cover and used for installing test paper. According to the utility model, a silicone oil sample quickly returns acid through heating, chlorate gas is collected and concentrated to the test paper box through the flow collecting cover for detection, and whether acid returns or not is quickly judged through the detection test paper; and the detection efficiency and the detection precision are improved through the flow collecting cover and the check block.

Description

Technical Field

[0001] The utility model relates to the technical field of analysis and detection, and more specifically, to a device for quickly detecting the acid return of silicone oil. Background Art

[0002] At present, the chlorine content in high hydrogen-containing silicone oil is relatively high. It is very difficult to reduce the chlorine content below 4 ppm through conventional treatment methods, resulting in serious acid return phenomenon of the product and affecting the quality of downstream products.

[0003] For example, a purification device for the production of hexamethyldisiloxane proposed in the patent with the publication number CN207153694U removes impurities through high-temperature heating and reflux. However, for industrial production, adding the process of high-temperature reflux to all products undoubtedly increases the cost and has no pertinence, adding energy consumption in vain. In actual production, generally through detection, products with a relatively high chlorine content are detected, and then the products of this batch are carefully processed.

[0004] At present, the method for detecting the acid return of low-viscosity silicone oil is to put 3-4 pieces of wide-range pH test papers in a retention sample bottle, and then prepare 2-3 pieces of pH test papers moistened with pure water. Clamp these test papers at the bottle mouth with the bottle cap, tighten the bottle cap, place the acid-return sample in the retention area, and check whether the test papers turn red every day. If they turn red, it means acid return; if they do not change color, it means no acid return. This method requires waiting for the silicone oil to naturally return acid, which takes too long. The test papers generally turn color in 7 to 30 days, and the data is seriously lagged. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for quickly detecting the acid return of silicone oil to solve the technical problem that the existing detection of the acid return of silicone oil takes too long to wait for the acid return of silicone oil and the data is seriously lagged.

[0006] The embodiments of the utility model are realized through the following technical solutions:

[0007] A device for quickly detecting the acid return of silicone oil includes a container for holding a sample, a heating device for heating the container, a flow collector for collecting the gas escaping from the container, and a test paper box provided on the flow collector for installing a test paper.

[0008] Preferably, the flow collector is provided with a mounting rack for installing the test paper box. The mounting rack includes a chute for slidably connecting the test paper box, blocks provided on both sides of the test paper box for guiding the gas flow, and a connecting frame for connecting the blocks.

[0009] Preferably, the test paper box includes a slider for slidably connecting the chute, a plurality of sets of rollers for installing the test paper, and a rotating shaft for rotatably connecting the rollers.

[0010] Preferably, the roller is provided with a box body with an open lower end for gas collection, and the rotating shaft is rotatably connected to the inner side of the box body.

[0011] Preferably, the air collecting cover is provided with a circular air outlet, and the block is a sector-shaped block concentric with the air outlet.

[0012] Preferably, the air outlet is further provided with a mounting ring for rotatably mounting the block.

[0013] Preferably, the heating device includes a heating wire for heating the container and a fixing ring for fixing the container.

[0014] With this technical solution, the silicone oil sample is quickly acidified by heating, and the chloric acid gas is collected by the air collecting cover and concentrated to the test paper box for detection. Whether there is acidification can be quickly judged through the test paper.

[0015] The mounting frame and the test paper box are rotatably mounted to the air collecting cover through the mounting ring. The disassembly and installation are convenient. After quickly completing the detection, it is removed. After adding a new sample, it can be installed and detected again. The waste test paper is removed by pulling, and a new test paper is added to improve the detection efficiency and detection accuracy.

[0016] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0017] 1. In the present utility model, the silicone oil sample is quickly acidified by heating, and the chloric acid gas is collected by the air collecting cover and concentrated to the test paper box for detection. Whether there is acidification can be quickly judged through the test paper.

[0018] 2. In the present utility model, the detection efficiency and detection accuracy are improved through the air collecting cover and the block. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a device for quickly detecting acidification of silicone oil provided in Embodiment 1 of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the mounting frame and the test paper box of the device for quickly detecting acidification of silicone oil provided in Embodiment 1 of the present utility model;

[0022] Figure 3The top - view structural schematic diagram of the rapid detection device for silicone oil acid return provided in Embodiment 1 of the present utility model;

[0023] Reference numerals: 1, heating device; 11, heating wire; 12, fixing ring; 2, container; 3, current - collecting cover; 31, air outlet; 32, mounting ring; 4, mounting bracket; 41, stop block; 42, connecting bracket; 43, chute; 5, test paper box; 51, slider; 52, rotating shaft; 53, roller; 54, box body; 6, test paper. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0026] It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0028] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] A device for quickly detecting the return of acid in silicone oil includes a container 2 for holding a sample, a heating device 1 for heating the container 2, a flow collector 3 for collecting the gas escaping from the container 2, and a test paper box 5 provided on the flow collector 3 for installing a test paper 6.

[0031] In this embodiment, the flow collector 3 is provided with a mounting rack 4 for installing the test paper box 5. The mounting rack 4 includes a chute 43 for slidably connecting the test paper box 5, a baffle 41 provided on both sides of the test paper box 5 for guiding the gas flow, and a connecting frame 42 for connecting the baffle 41.

[0032] In this embodiment, the test paper box 5 includes a slider 51 for slidably connecting to the chute 43, a plurality of rollers 53 for installing the test paper 6, and a rotating shaft 52 for rotatably connecting the rollers 53.

[0033] In this embodiment, the roller 53 is provided with a box body 54 with an open lower end for collecting the gas flow, and the rotating shaft 52 is rotatably connected to the inside of the box body 54.

[0034] In this embodiment, the flow collector 3 is provided with a circular air outlet 31, and the baffle 41 is set as a sector block concentric with the air outlet 31.

[0035] In this embodiment, the air outlet 31 is further provided with a mounting ring 32 for installing the baffle 41 by screwing.

[0036] In this embodiment, the heating device 1 includes a heating wire 11 for heating the container 2 and a fixing ring 12 for fixing the container 2.

[0037] In this embodiment, the temperature of the heating device is set to 150 °C, 100 g of the sample silicone oil is weighed, the container is a three-necked flask, a thermometer is placed at one end of the evacuation port of the flask and a ground glass stopper is placed at the other end; the flow collector, the mounting rack and the test paper box are installed into the small holes of a perforated rubber stopper or a tetrafluoro stopper, and plugged into the middle of the three-necked flask, so that the index finger and the other end are above the silicone oil;

[0038] Wait until the temperature rises to 150°C, then place the three-necked flask into the oil bath and start timing. Observe whether the pH test paper changes color. (1) If the test paper immediately turns significantly red (within 30 minutes), stop heating, take out the three-necked flask, record the time and temperature, and the result is severe acid return; (2) If the test paper turns slightly red (the redness is not obvious and the edge of the test paper is slightly red), continue the experiment. After heating for 30 minutes, observe the color of the test paper, record the time and temperature; if the test paper is still not obviously red and the edge of the test paper is slightly red, the result is slight acid return; (3) If the test paper shows no change after 30 minutes of the entire heating test, the result is no acid return.

[0039] Working principle and usage method:

[0040] Adopting this technical solution, the silicone oil sample is quickly acid-returned by heating, and the perchloric acid gas is collected through the flow collector 3 and concentrated to the test paper box 5 for detection. Whether there is acid return is quickly judged through the test paper 6;

[0041] The mounting bracket 4 and the test paper box 5 are installed on the flow collector 3 through the mounting ring 32 knob. The disassembly and installation are convenient. After quickly completing the detection, remove it, add a new sample and then install it for re-detection. Remove the waste test paper 6 by pulling, and add a new test paper 6 to improve the detection efficiency and detection accuracy.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for quickly detecting the acid return of silicone oil, characterized in that: It includes a container (2) for holding a sample, a heating device (1) for heating the container (2), a gas collecting hood (3) for collecting the gas escaping from the container (2), and a test strip box (5) provided on the gas collecting hood (3) for mounting a test strip (6).

2. The rapid detection device for silicone oil acid return according to claim 1, characterized in that: The gas collecting hood (3) is provided with a mounting frame (4) for mounting the test strip box (5). The mounting frame (4) includes a chute (43) for slidably connecting the test strip box (5), blocks (41) provided on both sides of the test strip box (5) for guiding the gas, and a connecting frame (42) for connecting the blocks (41).

3. The rapid detection device for silicone oil acid return according to claim 2, characterized in that: The test strip box (5) includes a slider (51) for slidably connecting the chute (43), a plurality of sets of rollers (53) for mounting the test strip (6), and a rotating shaft (52) for rotatably connecting the rollers (53).

4. The rapid detection device for silicone oil acid return according to claim 3, wherein: The roller (53) is provided with a box body (54) with an open lower end for collecting the gas. The rotating shaft (52) is rotatably connected to the inside of the box body (54).

5. A rapid detection device for silicone oil acid return according to any one of claims 2-4, characterized in that: The gas collecting hood (3) is provided with a circular air outlet (31). The block (41) is provided as a sector-shaped block concentric with the air outlet (31).

6. The rapid detection device for silicone oil acid return according to claim 5, wherein: The air outlet (31) is further provided with a mounting ring (32) for mounting the block (41) by means of a knob.

7. A rapid detection device for silicone oil returning to acidity according to any one of claims 1-4, characterized in that: The heating device (1) includes a heating wire (11) for heating the container (2) and a fixing ring (12) for fixing the container (2).

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