Device and method for rapidly detecting dissolved gas of transformer

Abstract

The invention discloses a transformer dissolved gas rapid detection device and method, and relates to the field of detection instruments.The transformer dissolved gas rapid detection device comprises an oscillation box, an oscillator is arranged in the oscillation box, the oscillation box further comprises an oscillation cylinder, the oscillation cylinder can be fixed to the oscillator in a limited mode to oscillate, and a containing cavity is formed in the oscillation cylinder; the oscillation cylinder is provided with a containing cavity, the containing cavity is used for limiting and clamping an injector filled with an oil sample, the oscillation cylinder is internally provided with a heating mechanism used for heating the containing cavity, and the outer wall of the oscillation cylinder is provided with a heat preservation layer. An injector filled with an oil sample is placed in the containing cavity of the oscillation cylinder, the oscillation cylinder is placed on the oscillator, so that it is guaranteed that the injector does not move when the oscillation box oscillates, the heating mechanism is located in the containing cavity, the oscillation cylinder can be directly taken out after oscillation of the oscillation box is completed, and the heating mechanism is located in the containing cavity. Therefore, a worker does not need to take up the injector due to heat.

Description

Technical Field

[0001] The invention relates to the field of detection instruments, and in particular to a transformer dissolved gas rapid detection device and method. Background Art

[0002] Transformers are core equipment of power grids, and their operational reliability affects the safety and stability of power grids. Transformers are complex, fully sealed boxes, and their internal defects are difficult to monitor through external measurement methods. However, the discharge or overheating caused by them will cause a series of chemical reactions in solid insulating materials such as transformer insulating oil and insulating paper to varying degrees, generating different types of fault characteristic gases that dissolve in transformer oil. By detecting or monitoring the concentration and proportion of characteristic gases dissolved in the oil, most of the internal hidden dangers and defects of the transformer can be discovered in time.

[0003] The commonly used multi-component gas detection method is gas chromatography, which uses a gas chromatograph to determine the components and content of dissolved gases in insulating oil, while the constant temperature oscillation equilibrium method is a common method for extracting dissolved gases in insulating oil. The specific steps of this method are: first add a certain amount of pure gas to the oil, then oscillate at a constant temperature to accelerate the transfer of dissolved gas in the oil to pure gas to achieve oil-gas two-phase distribution equilibrium, and finally determine the components and content of the equilibrium gas. According to the solubility equilibrium constant, the components and content of the gas dissolved in the oil can be calculated.

[0004] For example, the patent with the authorization announcement number CN217385361U and the authorization announcement date September 6, 2022, and its name is "Portable insulating oil degassing oscillation device". This patent relates to the technical field of transformer insulating oil sample analysis, and in particular to a portable insulating oil degassing oscillation device, comprising: a sealed box body, and an oscillation mechanism and a heating mechanism for oscillation heating arranged in the sealed box body for insulating oil degassing oscillation, the oscillation mechanism comprising: a support frame arranged in the box body, a driving motor fixed to the support frame through a bearing, an active eccentric wheel connected to the output end of the driving motor, a vibrating placement plate connected to the active eccentric wheel for placing insulating oil degassing samples, and a driven eccentric wheel fixed to the vibrating placement plate for maintaining the smooth rotation of the vibrating placement plate; the rotating shaft of the driven eccentric wheel is fixed to the support frame. The patent has a simple structure and a scientific and reasonable design. By improving the oscillation mechanism and heating mechanism in the existing oscillator, the volume and weight of the degassing oscillation device are reduced, which is convenient for use with a portable gas chromatograph, saving equipment assembly and maintenance time, and improving detection efficiency.

[0005] The shortcomings of the above-mentioned patents are that the constant temperature oscillating degasser in the prior art all sets the heating constant temperature device and the oscillator in the same box. When working, it is necessary to make a 100ml syringe containing a certain amount of oil sample and a certain amount of pure gas reach a dissolution equilibrium in the box under certain constant temperature and oscillation conditions. Afterwards, the syringe must be taken out of the box by hand while it is hot, and the small gas extraction port with a rubber cap at its end is made upward, and the equilibrium gas concentrated at the end is extracted as quickly as possible with another syringe, and this gas is injected into the gas chromatograph for measurement. In this way, the syringe needs to be taken out while it is hot during use, which is inconvenient to operate. At the same time, it is energy-consuming to heat the entire oscillation space, and the syringe is in a rapid cooling process in the subsequent gas extraction step, which also has a negative impact on the experiment. Summary of the invention

[0006] The purpose of the present invention is to provide a method to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A transformer dissolved gas rapid detection device comprises an oscillation box, an oscillator is arranged in the oscillation box, and an oscillation cylinder, the oscillation cylinder can be fixed on the oscillator to oscillate, a receiving cavity is formed in the oscillation cylinder, the receiving cavity is used to limit and clamp a syringe filled with an oil sample, a heating mechanism for heating the receiving cavity is arranged in the oscillation cylinder, and an outer wall of the oscillation cylinder is provided with a heat-insulating layer.

[0009] The above-mentioned transformer dissolved gas rapid detection device, the oscillator includes an oscillation frame and an oscillation plate, two identical oscillation plates are arranged on the oscillation frame, and the length of the oscillation frame is less than the length of the oscillation box to facilitate the oscillation of the oscillator.

[0010] In the above-mentioned transformer dissolved gas rapid detection device, a plurality of annular grooves are arranged on the oscillation plate.

[0011] In the above-mentioned transformer dissolved gas rapid detection device, three annular grooves are provided.

[0012] In the above-mentioned transformer dissolved gas rapid detection device, the radial dimension of the annular groove is smaller than the radial dimension of the syringe.

[0013] In the above-mentioned transformer dissolved gas rapid detection device, the oscillating cylinder comprises two identical semi-cylinders, and the two semi-cylinders are rotatably connected via a rotating shaft.

[0014] In the above-mentioned transformer dissolved gas rapid detection device, the oscillation cylinder is a double-layer structure, the inner layer of the oscillation cylinder is a heat-conducting metal, and the outer layer of the oscillation cylinder is a heat-insulating material.

[0015] The above-mentioned transformer dissolved gas rapid detection device has a plurality of arc grooves on the inner wall of the oscillation cylinder, and an automatic pop-up mechanism is arranged in the plurality of arc grooves. One end of the automatic pop-up mechanism extends out of the accommodating cavity through a rotating shaft, and the automatic pop-up mechanism is used to automatically pop out the syringe when the oscillation cylinder is opened.

[0016] In the above-mentioned transformer dissolved gas rapid detection device, the automatic pop-up mechanism includes a pop-up rod and a pop-up member, one end of the pop-up member is connected to the pop-up rod, and the other end of the pop-up member penetrates and extends out of the oscillation cylinder.

[0017] A method for rapid detection of dissolved gas in a transformer comprises the above-mentioned rapid detection device for dissolved gas in a transformer. During oscillation, an oscillation tube wraps a syringe to perform heating and oscillation.

[0018] In the above technical scheme, the transformer dissolved gas rapid detection device and method provided by the present invention places a syringe containing an oil sample in the accommodating chamber of the oscillation cylinder, and the oscillation cylinder is placed on the oscillator, thereby ensuring that the syringe will not move when the oscillation box oscillates, and the heating mechanism is located in the accommodating chamber. After the oscillation of the oscillation box is completed, the oscillation cylinder can be directly taken out, so that the staff does not need to pick up the syringe in the heat, but can directly pick up the oscillation cylinder to proceed to the next step. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the structure of an oscillation box provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of the oscillating cylinder provided by an embodiment of the present invention when it is opened;

[0022] Figure 3 A schematic structural diagram of an automatic ejection mechanism in an oscillating cylinder provided in another embodiment of the present invention;

[0023] Figure 4 A cross-sectional view of an automatic ejection mechanism in an oscillating cylinder provided in another embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of an automatic ejection mechanism in an oscillating cylinder provided in yet another embodiment of the present invention;

[0025] Figure 6A cross-sectional view of an automatic ejection mechanism in an oscillating cylinder provided in yet another embodiment of the present invention;

[0026] Figure 7 A partial view of an oscillation cylinder in an oscillation cylinder provided in another embodiment of the present invention;

[0027] Figure 8 A partial view of an automatic pop-up mechanism in an oscillating cylinder provided in yet another embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Oscillating box; 2. Oscillator; 2.1. Oscillating frame; 2.2. Oscillating plate; 2.21. Annular groove; 3. Oscillating cylinder; 4. Syringe; 5. Accommodating chamber; 6. Rotating shaft; 7. Push rod groove; 8. Arc groove; 9. Automatic ejection mechanism; 9.1. Ejection rod; 9.2. Ejection member; 9.3. Ejection roller; 10. Slot body; 11. Locking rod; 12. Slide groove. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Reference Figure 1-8 An embodiment of the present invention provides a transformer dissolved gas rapid detection device, including an oscillation box 1, in which an oscillator 2 is arranged, and also includes an oscillation cylinder 3, the oscillation cylinder 3 can be limited and fixed on the oscillator 2 for oscillation, and an accommodating cavity 5 is formed in the oscillation cylinder 3, the accommodating cavity 5 is used to limit and clamp a syringe 4 containing an oil sample, a heating mechanism for heating the accommodating cavity 5 is arranged in the oscillation cylinder 3, and the outer wall of the oscillation cylinder 3 is provided with a thermal insulation layer.

[0032] Rapid detection of transformer dissolved gas is an important means to evaluate the operating status and fault diagnosis of transformers. The whole process involves extracting dissolved gas from transformer oil and analyzing its composition and concentration. The specific process is as follows: first, oil sample collection, which uses a special oil sample syringe to collect oil samples at the sampling valve at the bottom of the transformer; second, gas degassing, which mostly uses a constant temperature oscillating degasser to accelerate gas precipitation through mechanical oscillation and collect the gas phase; third, gas separation and detection, the gas is separated by a chromatographic column (such as a packed column or a capillary column), and different gases (H 2 , CH 4 , C 2 H 2 , C 2 H 4 , C 2 H 6 ,CO,CO 2The gas concentration is converted into an electrical signal through a detector (such as TCD, FID) to generate a chromatogram; the fourth is data analysis and diagnosis, the gas concentration is calculated according to the chromatographic peak area or height, and the fault type is determined in combination with historical data and fault models (such as arc discharge, overheating, partial discharge). The above are all prior arts and will not be repeated here. The present embodiment is only an improvement made to the injector 4 mechanism of the degassing oscillation process using a constant temperature oscillating degasser. Specifically, the oscillation box 1 is generally a rectangular box, and an oscillator 2 is arranged in the oscillation box 1. The oscillator 2 includes an oscillation frame 2.1 and two oscillation plates 2.2. The two oscillation plates 2.2 are fixedly connected to the oscillation frame 2.1. The length of the oscillation frame 2.1 is less than the length of the oscillation box 1 to facilitate the oscillation of the oscillator 2. There is a certain distance between the two oscillation plates 2.2, and the oscillation plates 2.2 are provided with multiple An annular groove 2.21 is preferably provided with three annular grooves 2.21, and an annular rubber pad (not shown in the figure) is provided on the annular groove 2.21, and the annular rubber pad is used to limit the syringe stuck on the annular groove 2.21 (generally, a fixing mechanism is also configured to completely fix the syringe in the annular groove 2.21, which is a prior art and not shown in the figure). A driving mechanism is provided in the oscillation box 1 to drive the oscillation frame 2.1 to reciprocate horizontally in the oscillation box 1, so as to achieve the purpose of oscillation. The driving mechanism is a prior art and will not be repeated. The innovation of this embodiment is that it also includes an oscillation cylinder 3. In the prior art, the syringe 4 is directly fixed on the annular groove 2.21 of the oscillation plate to achieve oscillation. In this embodiment, the syringe 4 is wrapped in the oscillation cylinder 3, and the oscillation cylinder 3 is fixed on the annular groove 2.21 of the oscillation plate 2.2 to achieve oscillation, that is, the oscillation cylinder 3 is placed in the annular groove 2.The oscillation cylinder is fixed on an annular rubber pad 21, and a accommodating chamber 5 is formed in the oscillation cylinder 3. The accommodating chamber 5 is used to limit and clamp the syringe 4 containing the oil sample. The accommodating chamber 5 is a structure adapted to the shape of the syringe 4. The oscillation cylinder 3 includes two identical semi-cylinders, and the two semi-cylinders are rotatably connected by a rotating shaft such as two hinge mechanisms. The syringe 4 is placed in the lower semi-cylinder, and the upper semi-cylinder that can be opened is the upper semi-cylinder. The inner diameter of the semi-cylinder is the outer diameter of the syringe barrel. An opening is provided at one end of the oscillation cylinder 3 to form a push rod groove 7. The push rod groove 7 is used to limit the head end of the piston push rod of the syringe 4, and the axial dimension of the push rod groove 7 is larger than that of the syringe The axial size of the head end of the piston push rod of the device 4 is so as to adapt to the syringe 4 for sampling at different times, that is, the piston push rod can be placed in the oscillation cylinder 3 at different reserved lengths. Preferably, the oscillation cylinder 3 is a double-layer structure, that is, the inner layer is provided with a heating mechanism, such as an electric heating element, and the outer layer is a heat-insulating material to achieve heat preservation. At the same time, the staff will not feel hot when picking up the oscillation cylinder. The oscillation cylinder 3 is provided with a heating mechanism for heating the accommodating cavity 5. Preferably, the heating mechanism, such as a heating wire, is embedded in the inner wall of the oscillation cylinder 3, so that the syringe 4 is heated, and the outer wall of the oscillation cylinder 3 is provided with a heat-insulating layer. Obviously, the heat-insulating mechanism and the electric heating mechanism are both existing technologies and will not be repeated. The radial dimension of the oscillation cylinder 3 is slightly larger than the radial dimension of the annular groove 2.21. The oscillation cylinder 3 can be placed on the annular groove 2.21 of the two oscillation plates 2.2 for oscillation (correspondingly, a fixing mechanism in the prior art is still provided). In this way, the oscillation cylinder 3 is limited in the annular groove 2.21 for oscillation. Before the oscillation box 1 works, the staff puts the syringe 4 filled with oil sample into the oscillation cylinder 3, and then places the oscillation cylinder 3 in the annular groove 2.21 and fixes it. When the oscillation box 1 works, the oscillator 2 moves horizontally and oscillates the oscillation cylinder 3 quickly and repeatedly to facilitate the separation of gas from the liquid. During this process, the oscillation cylinder 3 is in a closed state, that is, the two semi-cylinders fit each other. A locking mechanism can be provided on the oscillation cylinder 3. When the oscillation cylinder 3 is closed, it is locked by the locking mechanism. The locking mechanism, such as a buckle, is a prior art and will not be described in detail. After the oscillation box 1 is finished working, the staff directly takes out the oscillation cylinder 3, first unlocks the locking mechanism, and then opens the upper semi-cylinder of the oscillation cylinder 3 to take out the syringe. .

[0033] The transformer dissolved gas rapid detection device provided by the present invention places a syringe 4 containing an oil sample in the accommodating cavity 5 of the oscillation cylinder 3, and the oscillation cylinder 3 is placed on the oscillator 2, thereby ensuring that the syringe 4 will not move when the oscillation box 1 oscillates, and the heating mechanism is located in the accommodating cavity. After the oscillation of the oscillation box 1 is completed, the oscillation cylinder 3 can be directly taken out.

[0034] In another embodiment provided by the present invention, Figure 3-4 As shown, since the lower semi-cylinder wraps half of the syringe, and the outer surface of the syringe 4 is circular and lacks force application points, bending the push rod may cause its axial movement to have a negative impact on the experiment. In order to solve the problem of difficulty in removing the syringe 4, a plurality of arc grooves 8 such as two are opened on the inner wall of the lower semi-cylinder, and an automatic pop-up mechanism 9 is arranged in each of the plurality of arc grooves 8. The automatic pop-up mechanism 9 includes an ejection rod 9.1 and an ejection member 9.2. Preferably, the ejection rod 9.1 is adapted to the arc shape of the arc groove 8, and the top of the ejection rod 9.1 is rotatably connected to the groove wall of the arc groove 8 by an axis, so that the lower part of the ejection rod 9.1 can be located in the arc groove 8 and rotated outside the arc groove 8 by rotating. The ejection member 9.2 is preferably an L-shaped rod body, and the ejection member 9.2 is an L-shaped rod body. One end of the pop-up member 9.2 is connected to the top of the ejection rod 9.1, and the other end of the pop-up member 9.2 (the end away from the ejection rod 9.1) passes through the lower semi-cylinder to extend to the outside of the lower semi-cylinder, so that after opening the upper semi-cylinder of the oscillation cylinder 3, continue to rotate the upper semi-cylinder so that its outer wall forcibly squeezes the protruding end of the pop-up member 9.2. At this time, the swing of the pop-up member 9.2 will drive the ejection rod 9.1 to swing, so that the ejection rod 9.1 will swing to squeeze out the syringe 4. The purpose of setting up the automatic ejection mechanism is to set the arc groove 8 and the automatic ejection mechanism 9 so that when the oscillation cylinder 3 is opened, the opening stroke of the oscillation cylinder 3 is utilized to make the syringe 4 automatically ejected from the oscillation cylinder 3, so that it is convenient for the operator to pick up the syringe 4.

[0035] In another embodiment provided by the present invention, Figure 5-6As shown, since the syringe 4 is completely fitted in the oscillation cylinder 3, the syringe 4 is most efficiently ejected in the oscillation cylinder 3 when a vertical upward force is provided to the syringe 4 (when the butt joint surface of the two semi-cylinders is a horizontal plane). In the above embodiment, the force provided by the ejection rod 9.1 to the syringe 4 can make the syringe 4 automatically ejected, but since the elastic force provided by the ejection rod 9.1 is not toward the upper semi-cylinder (the aforementioned vertical upward force), it has a greater probability of getting stuck, so the automatic ejection structure of this embodiment 9 also includes a plurality of ejection rollers 9.3. The arc angle of the arc groove 8 in this embodiment is greater than a quarter of the arc. Preferably, three ejection rollers 9.3 are provided. In this embodiment, the ejection rod 9.1 is a plate with a U-shaped cross section, and a plurality of slideways are symmetrically provided on the two side plates thereof. The slideways are provided corresponding to the ejection rollers 9.3, that is, the two ends of the ejection rollers 9.3 are connected in the corresponding slideways by sliding shafts. Since the radial dimension of the sliding shaft is smaller than the slideway, the ejection rollers 9.3 can also rotate freely, so that the ejection rollers 9.3 can rotate along the arc of the ejection rod 9.1. The ejection rollers 9.3 can rotate while sliding, and the three ejection rollers 9.3 are respectively arranged on different arcs of the arc groove 8. The ejection rollers 9.3 are slidably arranged on the ejection rod 9.1. The ejection rollers 9.3 can both rotate on the ejection rod 9.1 and slide on the ejection rod 9.1. When the ejection member 9.2 is squeezed, the ejection rod 9.1 swings, and the ejection rollers 9.3 abut and squeeze the syringe 4. At this time, if a jam occurs, the ejection rollers 9.3 can passively move by rotating and sliding until the syringe 4 is squeezed out, thereby reducing the probability of jamming. In this way, the ejection rod 9.1 will drive the ejection roller 9.3 to slide on the arc groove 8 and fit against the outer wall of the syringe 4 while swinging, and the ejection roller 9.3 will rotate while sliding to drive the syringe 4 to automatically pop out of the accommodating cavity, thereby improving the efficiency of automatic ejection. When the ejection rod 9.1 swings, the ejection roller 9.3 will slide on the ejection rod 9.1 and fit against the outer wall of the syringe 4. In this way, the ejection roller 9.3 will passively move by rotating and sliding until the syringe 4 is squeezed out, thereby reducing the probability of jamming.

[0036] In another embodiment provided by the present invention, Figure 7-8As shown, in the above embodiment, the ejection member 9.2 and the ejection rod 9.1 are an integrated structure, and an additional locking mechanism needs to be provided for the two semi-cylinders and locking and unlocking operations are required each time. Furthermore, in the present embodiment, the ejection rod 9.1 and the ejection member 9.2 are arranged as a split structure, that is, a U-shaped groove is provided on one end of the ejection rod 9.1 connected to the ejection member 9.2, and one end of the ejection member 9.2 is formed as a protrusion, which is inserted into the U-shaped groove to realize the connection and transmission between the two. In this way, in the axial direction of the oscillation cylinder 3, the ejection member 9.2 can slide axially to disengage from the U-shaped groove on the ejection member 9.2, and a sliding groove that docks with the U-shaped groove is correspondingly provided on the side wall of the lower semi-cylinder for the ejection member 9.2 to slide out. When the oscillation cylinder 3 is in the open state, the protrusion is inserted into the U-shaped groove to facilitate the automatic ejection of the syringe 4. A locking rod 11 is provided on the upper semi-cylinder of the oscillation cylinder 3. When in the closed state, the ejection member 9.2 is axially moved to slide out of the ejection rod 9.1, so that the ejection member 9.2 and the locking rod 11 are in the same axial position, and at this time the locking rod 11 abuts against the ejection member 9.2 to lock the oscillation cylinder 3, that is, the locking mechanism is omitted, and the naked eye can directly observe whether it is locked at this time. When the oscillation cylinder 3 is in the open state, the ejection member 9.2 is axially moved to slide on the slide groove until the protruding portion of the ejection member 9.2 is inserted into the U-shaped groove. In this way, when the upper half cylinder of the oscillation cylinder 3 is opened, when the upper half cylinder continues to be rotated, its outer wall forcibly squeezes the protruding end of the ejection member 9.2 to make the ejection rod 9.1 swing to squeeze out the syringe 4. In this way, when the oscillation cylinder 3 oscillates, the locking rod 11 abuts against the ejection member 9.2, and the locking rod 11 will not separate from the ejection member 9.2 alone, so that the oscillation cylinder 3 will not automatically unlock when oscillating.

[0037] In another embodiment, further, the depth of the arc groove 8 is greater than the radial dimension or thickness of the ejection rod 9.1, so that when the oscillation cylinder 3 is in the closed state, after the ejection member 9.2 is separated from the ejection rod 9.1, the limit of the ejection rod 9.1 is cancelled, so that when the oscillation cylinder 3 oscillates back and forth, since the top of the ejection rod 9.1 is only connected to the groove wall of the arc groove 8 by an axis rotation, the ejection rod 9.1 will shake in the arc groove 8 (essentially, it will swing slightly with the axis as the center of the circle), so that the ejection roller 9.3 on the ejection rod 9.1 will repeatedly hit the arc groove 8 during the oscillation process. The syringe 4 is used to enhance the oscillation effect. The advantages of arranging the automatic pop-up mechanism 9 in this way are: first, part of the automatic pop-up mechanism 9 forms a locking mechanism, that is, the pop-up member 9.2 is a locking mechanism when the oscillation cylinder 3 is closed (cooperating with the locking rod 11 to lock the oscillation cylinder 3); second, when shaking, the pop-up roller 9.3 on the pop-up rod 9.1 will hit the syringe 4 to enhance the oscillation effect; third, when the oscillation cylinder 3 needs to be opened, the pop-up member 9.2 is slid to be inserted into the U-shaped groove of the pop-up rod 9.1, that is, it cooperates with the pop-up rod 9.1 so that the syringe 4 can be automatically popped out.

[0038] An embodiment of the present invention further provides a method for rapid detection of dissolved gas in a transformer, which is based on the above-mentioned rapid detection device for dissolved gas in a transformer. During oscillation, the syringe is wrapped by an oscillating cylinder to perform heating and oscillation.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A transformer dissolved gas rapid detection device, comprising an oscillation box, wherein an oscillator is provided in the oscillation box, characterized in that: It also includes an oscillating cylinder, which can be fixed on the oscillator to oscillate, and a accommodating cavity is formed in the oscillating cylinder. The accommodating cavity is used to limit and clamp the syringe containing the oil sample, and a heating mechanism for heating the accommodating cavity is arranged in the oscillating cylinder, and the outer wall of the oscillating cylinder is provided with a heat-insulating layer.

2. The transformer dissolved gas rapid detection device according to claim 1 is characterized in that: The oscillator comprises an oscillation frame and an oscillation plate. The oscillation plate is located on the oscillation frame. The length of the oscillation frame is shorter than the length of the oscillation box to facilitate the oscillation of the oscillator.

3. The transformer dissolved gas rapid detection device according to claim 2 is characterized in that: The oscillating plate is provided with a plurality of annular grooves.

4. The transformer dissolved gas rapid detection device according to claim 3 is characterized in that: The number of the annular grooves is three.

5. The transformer dissolved gas rapid detection device according to claim 4 is characterized in that: The radial dimension of the annular groove is smaller than the radial dimension of the oscillation cylinder.

6. The transformer dissolved gas rapid detection device according to claim 1, characterized in that: The oscillating cylinder comprises two identical semi-cylinders, which are rotatably connected via a rotating shaft.

7. The transformer dissolved gas rapid detection device according to claim 6, characterized in that: The oscillation cylinder has a double-layer structure, the inner layer of the oscillation cylinder is a heat-conducting metal, and the outer layer of the oscillation cylinder is a heat-insulating material.

8. The transformer dissolved gas rapid detection device according to claim 6, characterized in that: A plurality of arc-shaped grooves are provided on the inner wall of the oscillating cylinder, and automatic ejection mechanisms are arranged in the plurality of arc-shaped grooves. The automatic ejection mechanism is used for automatically ejecting the syringe when the oscillating cylinder is opened.

9. The transformer dissolved gas rapid detection device according to claim 8, characterized in that: The automatic ejection mechanism comprises an ejection rod and an ejection member, one end of the ejection member is connected to the ejection rod, and the other end of the ejection member penetrates through and extends out of the oscillation cylinder.

10. A method for rapid detection of dissolved gas in a transformer, characterized in that: The invention is based on the transformer dissolved gas rapid detection device according to any one of claims 1 to 9. During oscillation, the syringe is wrapped by an oscillation cylinder to be heated and oscillated.

Images