CN218885695U

CN218885695U - A device for power plant lubricating oil granularity detects

Info

Publication number: CN218885695U
Application number: CN202222710959.7U
Authority: CN
Inventors: 王春霞; 张才稳; 秦大川; 高惠华; 王曦
Original assignee: Huadian Electric Power Research Institute Co Ltd
Current assignee: Huadian Electric Power Research Institute Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-18
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a device for power plant lubricating oil granularity detects, including vacuum pump, exhaust tube, vacuum drying ware, sample bottle, advance oil pipe and granularity detector, the vacuum pump is connected with the exhaust tube, the last foraminiferous glass lid that is provided with of vacuum drying ware, the exhaust tube inserts to the vacuum drying ware in through foraminiferous glass lid, the splendid attire has the drier in the vacuum drying ware, the sample bottle is arranged in the vacuum drying ware, advance oil pipe and insert to the vacuum drying ware in through foraminiferous glass lid, advance oil pipe's one end and be connected with the granularity detector, the other end of granularity detector inserts to the sample bottle in. The utility model discloses simple structure, low price, convenient operation have eliminated the influence that the bubble detected the granularity in the oil, have improved the accuracy of testing result.

Description

A device for power plant lubricating oil granularity detects

Technical Field

The utility model relates to an oil quality field of detection, in particular to detection device of power plant's lubricating oil granularity.

Background

With the successive operation of 1000MW thermal power generating units and a large number of hydroelectric generating units, faults such as abrasion of a rotor shaft neck and jamming of an adjusting part happen occasionally due to excessive granularity of lubricating oil, and the long-term safe and stable operation of the units is seriously threatened. For this reason, the power plant generally needs to detect the granularity of the lubricating oil before and after starting the engine and during regular supervision. Because the dissolved gas of sampling, transportation and oil itself is appeared and can be caused and contain a small amount of bubbles in the oil appearance, by automatic identification for particle pollutant in oil appearance testing process, lead to the testing result inaccurate, the misjudgment is made to the state of unit to the misleading power plant.

Currently, the detection method of the granularity of the lubricating oil comprises the following steps:

and (4) comparing by using a microscope. And uniformly distributing the particles in the oil sample on the filter membrane, observing under a microscope and comparing with a standard template, and further determining the particle pollution level of the oil sample. The method needs to prepare a blank test piece and an oil sample detection test piece for observation under a microscope, and the steps for preparing the test piece are complicated. In addition, the final detection result is that the pollution level of the granularity is determined according to the comparison between the sample test piece and the template, certain personnel judgment deviation exists, and the error between different laboratories can reach 1.5 levels. Therefore, when the method is used for detecting the granularity of a large number of oil samples in a laboratory, the operation steps are complex, the detection time of a single sample is long, and the accuracy of the detection result is low.

Automatic particle counter method. The method comprises the steps of degassing an oil sample by using an ultrasonic oscillator, placing the oil sample in a pressure bin, uniformly stirring, and detecting the particle size pollution level of the oil sample by using an automatic particle counter. The detection method needs to carry out ultrasonic oscillation degassing pretreatment in advance, wherein the pretreatment and the detection are separately carried out, and are respectively and independently carried out, and bubbles which are mistakenly identified as particles by an instrument are easily generated in the stirring process of the pressure bin. In addition, the automatic particle counter uses the light-shielding principle to detect the particle size in oil, so that the oil sample is limited to have no visible particles therein. Moreover, automatic particle counters are expensive. In terms of technology and price, the detection method is not suitable for wide popularization.

Obviously, the two traditional detection methods do not achieve the purpose of low-price, quick and efficient detection, and in the aspect of the problem of lubricating oil granularity detection, no device can well solve the problem at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low price, simple structure, convenient operation's a device for power plant lubricating oil granularity detects to the defect that the lubricating oil granularity for electric power of many bubbles detected.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a device for power plant lubricating oil granularity detects, characterized by includes vacuum pump, exhaust tube, vacuum drying ware, sample bottle, advances oil pipe and granularity detector, the vacuum pump is connected with the exhaust tube, be provided with foraminiferous glass lid on the vacuum drying ware, the exhaust tube inserts to the vacuum drying ware in through foraminiferous glass lid, the splendid attire has the drier in the vacuum drying ware, the sample bottle is arranged in the vacuum drying ware, advance oil pipe and insert to the vacuum drying ware in through foraminiferous glass lid, the one end that advances oil pipe is connected with the granularity detector, the other end of granularity detector inserts to the sample bottle in.

Furthermore, a clapboard is arranged in the vacuum dryer, the sample bottle is arranged on the clapboard, and the drying agent is positioned below the clapboard; the desiccant is a silica gel desiccant.

Furthermore, the sample bottle is adhered with an anti-slip patch.

Furthermore, a sealing ring is arranged on the glass cover with the hole to prevent air from entering the vacuum drier.

Furthermore, the granularity detector is portable granularity detector, and after the exhaust tube and the oil inlet tube were connected, the control of degasification and detection mode can be realized through the switch of controlling vacuum pump and granularity detector.

Compared with the prior art, the utility model, have following advantage and effect:

(1) The special vacuum drier, the vacuum pump and the exhaust tube are used for vacuum degassing of the lubricating oil for electric power, bubbles in the oil are discharged, the bubbles in the oil are prevented from being recognized as granular mechanical impurities by the granularity detector, and the accuracy of granularity detection of the lubricating oil for electric power is guaranteed.

(2) After vacuum degassing, starting a granularity detector, and enabling an oil sample to enter the granularity detector through an oil inlet pipe for granularity detection. The whole in-process need not make the appearance, need not remove the extra preprocessing device except that the vacuum pump, need not remove the sample position after the preliminary treatment, need not get the sample again, and vacuum degassing preliminary treatment and granularity detect step are seamless almost, have saved to detect always long by a wide margin, are applicable to the accurate laboratory detection of lubricating oil granularity for the electric power.

(3) The method is simple to operate, sample preparation and special pretreatment equipment are omitted, and the detection cost and the detection time are saved. The portable granularity detector with a simple device and low cost is used for accurately detecting the granularity of the lubricating oil for electric power, and the effect superior to that of an automatic granularity detector is achieved.

The utility model discloses practiced thrift the cost and the check-out time of device, furthest's elimination bubble in the lubricating oil for the electric power to the influence that the granularity detected, improved the accuracy of testing result.

Drawings

Fig. 1 is a schematic view of the overall structure of the device of the present invention.

In the figure: the device comprises a vacuum pump 1, an exhaust tube 2, a vacuum dryer 3, a drying agent 4, a sample bottle 5, an anti-slip sticker 6, an oil inlet tube 7, a glass cover with holes 8 and a granularity detector 9.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples

Referring to fig. 1, in the embodiment, a device for detecting granularity of power plant lubricating oil, including vacuum pump 1, exhaust tube 2, vacuum drier 3, sample bottle 5, advance oil pipe 7 and granularity detector 9, vacuum pump 1 is connected with exhaust tube 2, be provided with foraminiferous glass lid 8 on the vacuum drier 3, exhaust tube 2 inserts to vacuum drier 3 in through foraminiferous glass lid 8, the splendid attire has drier 4 in the vacuum drier 3, sample bottle 5 is arranged in vacuum drier 3, advance oil pipe 7 and insert to vacuum drier 3 in through foraminiferous glass lid 8, advance oil pipe 7's one end and be connected with granularity detector 9, the other end of granularity detector 9 inserts to sample bottle 5.

In the embodiment, a clapboard is arranged in the vacuum dryer 3, the sample bottle 5 is arranged on the clapboard, and the drying agent 4 is positioned below the clapboard; the desiccant 4 is a silica gel desiccant.

In this embodiment, the anti-slip sticker 6 is stuck to the sample bottle 5.

In this embodiment, the perforated glass cover 8 is provided with a sealing ring to prevent air from entering the vacuum dryer 3.

In this embodiment, the particle size detector 9 is a portable particle size detector.

The operation method comprises the following steps:

1. the anti-slip sticker 6 is held by hands, the sample bottle 5 filled with the oil sample is placed in the vacuum drier 3, the vacuum pump 1 is started to vacuumize the oil sample, and the vacuum pump 1 is closed when no obvious bubbles are separated out from the oil sample.

2. And opening the granularity detector 9, enabling the oil sample to enter the granularity detector 9 from the oil inlet pipe 7, and carrying out accurate granularity detection on the oil for electric power. The portable granularity detector with a simple device and low cost is used for accurately detecting the granularity of the lubricating oil for electric power, and the effect superior to that of an automatic granularity detector is achieved.

Those not described in detail in this specification are well within the skill of the art.

In addition, it should be noted that the above contents described in the present specification are only illustrations of the structure of the present invention. All equivalent changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions by those skilled in the art may be made to the described embodiments without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a device for power plant lubricating oil granularity detects, characterized by, includes vacuum pump (1), exhaust tube (2), vacuum drier (3), sample bottle (5), advances oil pipe (7) and granularity detector (9), vacuum pump (1) is connected with exhaust tube (2), be provided with foraminiferous glass lid (8) on vacuum drier (3), exhaust tube (2) insert to vacuum drier (3) in through foraminiferous glass lid (8), flourishing drier (4) are equipped with in vacuum drier (3), vacuum drier (3) is arranged in to sample bottle (5), advance oil pipe (7) and insert to vacuum drier (3) in through foraminiferous glass lid (8), the one end that advances oil pipe (7) is connected with granularity detector (9), the other end of granularity detector (9) inserts to in sample bottle (5).

2. The device for detecting the granularity of the lubricating oil for the power plant as claimed in claim 1, wherein a clapboard is arranged in the vacuum dryer (3), the sample bottle (5) is arranged on the clapboard, and the drying agent (4) is positioned below the clapboard; the drying agent (4) is a silica gel drying agent.

3. The device for detecting the granularity of the lubricating oil for the power plant as claimed in claim 1 or 2, wherein the anti-slip sticker (6) is pasted on the sample bottle (5).

4. The device for detecting the granularity of the lubricating oil for the power plant as claimed in claim 1, wherein a sealing ring is arranged on the perforated glass cover (8).

5. The device for the particle size detection of power plant lubricating oil according to claim 1, characterized in that the particle size detector (9) is a portable particle size detector.