Adding device for chromatographic detection of insulating oil

Abstract

The utility model discloses an adding device for chromatographic detection of insulating oil, which is arranged at the top of a chromatographic detector and comprises a first guide pipe communicated with the oil inlet end of the chromatographic detector, and one end, far away from the chromatographic detector, of the first guide pipe is communicated with a micro pump. One side of the micro suction pump is fixedly connected with the right side of the chromatographic detector, the top of the micro suction pump is communicated with a second guide pipe, and the top of the chromatographic detector is fixedly connected with a supporting frame. Insulating oil is poured into the liquid cylinder, when detection is needed, the piston is driven by the driving structure to slide on the inner surface of the liquid discharging pipe, the piston moves downwards to the lowest position of the end face of the second guide pipe, then the insulating oil enters the second guide pipe, and oil in the second guide pipe is pumped into the first guide pipe through the micro pump; and finally, the oil enters the chromatographic detector through the guide pipe I to be detected, so that a manual extraction and pushing mode is replaced, and the purpose of extracting and detecting at the same time is achieved, so that oil injection detection is facilitated, and the convenience during detection is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulating oil detection, and particularly relates to an adding device for insulating oil chromatography detection. Background Art

[0002] Insulating oil, also known as transformer oil, is a commonly used lubricating oil, mainly used as the dielectric of electrical equipment. The main functions of insulating oil are to dissipate heat and cool in electrical equipment, maintain the insulation state of windings, and prevent the generation of corona and arc discharge, etc.

[0003] For the insulating oil in a transformer, it needs to be drained and detected. When detecting, gas chromatography is used for detection. The detector needs to use a syringe to extract the oil in the sample, and then connect it through a catheter and the syringe, and manually push it into the chromatograph to detect the insulating oil. The method of manually pushing the insulating oil into the chromatograph using a syringe is relatively cumbersome. Therefore, we propose an adding device for insulating oil chromatography detection to solve the above-mentioned deficiencies. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an adding device for insulating oil chromatography detection, which has the purpose of facilitating oil injection and thus improving the convenience during detection, so as to solve the problems in the above background art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: An adding device for insulating oil chromatography detection, the adding device is arranged on the top of the chromatograph detector. The adding device includes a first catheter connected to the oil inlet end of the chromatograph detector. The end of the first catheter away from the chromatograph detector is connected to a micro suction pump. One side of the micro suction pump is fixedly connected to the right side of the chromatograph detector. The top of the micro suction pump is connected to a second catheter. A support frame is fixedly connected to the top of the chromatograph detector. A liquid cylinder with an open top is fixedly connected to the top of the support frame. The bottom of the liquid cylinder penetrates through the support frame and extends to the top of the inner cavity of the support frame, and is connected to a drain pipe. The end of the second catheter away from the micro suction pump is connected to the right side of the drain pipe. A piston is slidably connected to the inner surface of the drain pipe. A driving structure for driving the piston to slide up and down is arranged in the inner cavity of the support frame.

[0006] Preferably, the driving structure includes a motor fixedly connected to the bottom of the inner cavity of the support frame. The output end of the motor is fixedly connected to a cam. A rod body is fixedly connected to the axis of the piston. The bottom of the rod body penetrates through the drain pipe and extends to the bottom of the drain pipe, and is slidably penetrated through the inner surface of the drain pipe. A connecting seat is fixedly connected to the bottom of the rod body. A pulley is slidably connected to the inner surface of the connecting seat. The outer surface of the pulley is closely attached and slid on the surface of the cam. A spring is sleeved on the surface of the rod body.

[0007] Preferably, when the surface of the cam closest to the axis point fits and slides with the pulley, the position of the piston driven is at the lowest point of the second port surface of the conduit.

[0008] Preferably, when the surface of the cam farthest from the axis point fits and slides with the pulley, the position of the piston driven is at the highest point of the second port surface of the conduit.

[0009] Preferably, the top and bottom ends of the spring are fixedly connected to the bottom of the drain pipe and the top of the connecting seat respectively.

[0010] Preferably, one end surface of the first conduit close to the chromatographic detector is integrally communicated with a threaded connector, and the surface of the threaded connector is threadedly connected to the oil inlet end of the chromatographic detector.

[0011] 1. The beneficial effects of the present invention are as follows: The insulating oil is poured into the liquid cylinder of the present invention. When detection is required, only by driving the piston to slide on the inner surface of the drain pipe through the driving structure, the piston is moved down to the lowest point of the second end surface of the conduit. At this time, the insulating oil enters the second conduit, and the oil in the second conduit is pumped into the first conduit through the micro-pump, and finally enters the chromatographic detector through the first conduit for detection, replacing the manual extraction and pushing method, achieving the purpose of detecting as soon as it is pumped, thus facilitating the oil injection detection and improving the convenience during detection.

[0012] 2. The present invention drives the cam to rotate through the motor, so that the cam and the pulley contact and slide. When the cam rotates to the surface closest to the axis point, it drives the piston to slide on the inner surface of the drain pipe, making the position of the piston at the lowest point of the second port surface of the conduit, so that the piston is communicated with the second conduit, and then the insulating oil enters the second conduit. When the cam rotates to the surface farthest from the axis point, it drives the piston to slide on the inner surface of the drain pipe, so that the position of the piston is at the highest point of the second port surface of the conduit, thus realizing the blockage, and then the oil stays on the top of the piston.

[0013] 3. The present invention is provided with a spring to increase the downward power of the rod body driving the piston by using its own elasticity.

[0014] 4. The present invention is provided with a threaded connector to facilitate the disassembly and assembly of the first conduit, so as to achieve the effect of cleaning the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Wherein:

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of the micro-pump of the present invention;

[0018] Figure 3 It is the front view of the structure of the present utility model;

[0019] Figure 4 It is the partial enlarged view of point A of the present utility model.

[0020] In the attached drawings, the list of components represented by each label is as follows:

[0021] 1. Chromatography detector; 2. First conduit; 3. Micro suction pump; 4. Second conduit; 5. Support frame; 6. Liquid cylinder; 7. Drain pipe; 8. Piston; 9. Driving structure; 10. Threaded connector; 91. Motor; 92. Cam; 93. Rod body; 94. Connecting seat; 95. Pulley; 96. Spring. Specific embodiments

[0022] In the following, embodiments of the addition device for insulating oil chromatography detection of the present utility model will be described with reference to the attached drawings.

[0023] Embodiment 1:

[0024] Figures 1-4An adding device for insulating oil chromatography detection showing an embodiment of the present utility model. The adding device is arranged on the top of the chromatography detector 1. The adding device includes a first conduit 2 connected to the oil inlet end of the chromatography detector 1. One end of the first conduit 2 away from the chromatography detector 1 is connected to a micro suction pump 3. One side of the micro suction pump 3 is fixedly connected to the right side of the chromatography detector 1. The top of the micro suction pump 3 is connected to a second conduit 4. A support frame 5 is fixedly connected to the top of the chromatography detector 1. A liquid cylinder 6 with an open top is fixedly connected to the top of the support frame 5. The bottom of the liquid cylinder 6 penetrates through the support frame 5 and extends to the top of the inner cavity of the support frame 5, and is connected to a drain pipe 7. One end of the second conduit 4 away from the micro suction pump 3 is connected to the right side of the drain pipe 7. A piston 8 is slidably connected to the inner surface of the drain pipe 7. A driving structure 9 for driving the piston 8 to slide up and down is arranged in the inner cavity of the support frame 5. Pour the insulating oil into the liquid cylinder 6. When detection is needed, only need to drive the piston 8 to slide on the inner surface of the drain pipe 7 through the driving structure 9, so that the piston 8 moves down to the lowest position of the end face of the second conduit 4. At this time, the insulating oil enters the second conduit 4. The oil in the second conduit 4 is pumped into the first conduit 2 through the micro suction pump 3, and finally enters the chromatography detector 1 through the first conduit 2 for detection, replacing the manual extraction and pushing method, achieving the purpose of extracting and detecting at any time, thus facilitating oil injection detection and improving the convenience during detection. The driving structure 9 includes a motor 91 fixedly connected to the bottom of the inner cavity of the support frame 5. The output end of the motor 91 is fixedly connected to a cam 92. A rod body 93 is fixedly connected to the axis center of the piston 8. The bottom of the rod body 93 penetrates through the drain pipe 7 and extends to the bottom of the drain pipe 7, and is slidably penetrated through the inner surface of the drain pipe 7. A connecting seat 94 is fixedly connected to the bottom of the rod body 93. A pulley 95 is slidably connected to the inner surface of the connecting seat 94. The outer surface of the pulley 95 is in close contact and sliding with the surface of the cam 92. A spring 96 is sleeved on the surface of the rod body 93. When the surface of the cam 92 closest to the axis center point is in contact and sliding with the pulley 95, the position of the piston 8 is driven to be at the lowest position of the end face of the second conduit 4. When the surface of the cam 92 farthest from the axis center point is in contact and sliding with the pulley 95, the position of the piston 8 is driven to be at the highest position of the end face of the second conduit 4. The motor 91 drives the cam 92 to rotate, so that the cam 92 and the pulley 95 are in contact and sliding. When the cam 92 rotates to the surface closest to the axis center point, it drives the piston 8 to slide on the inner surface of the drain pipe 7, so that the position of the piston 8 is at the lowest position of the end face of the second conduit 4, so that the piston 8 is communicated with the second conduit 4, and then the insulating oil enters the second conduit 4. When the cam 92 rotates to the surface farthest from the axis center point, it drives the piston 8 to slide on the inner surface of the drain pipe 7, so that the position of the piston 8 is at the highest position of the end face of the second conduit 4, thus realizing sealing, and then the oil stays on the top of the piston 8. By setting the spring 96, the elastic force of its own is used to increase the power of the rod body 93 to drive the piston 8 downward.

[0025] Embodiment Two:

[0026] Figures 1-4 An adding device for insulating oil chromatography detection according to an embodiment of the present utility model is shown. The adding device is arranged on the top of a chromatography detector 1. The adding device includes a first conduit 2 connected to the oil inlet end of the chromatography detector 1. One end surface of the first conduit 2 close to the chromatography detector 1 is integrally connected with a threaded connector 10. The surface of the threaded connector 10 is threadedly connected to the oil inlet end of the chromatography detector 1. By providing the threaded connector 10, the disassembly and assembly of the first conduit 2 are facilitated, so that the effect of cleaning the pipeline can be achieved. When not in use, the first conduit 2 can be removed, and the cleaning liquid can be poured into the liquid cylinder 6. By starting the micro pump 3, the cleaning liquid can be used to clean the inside of the second conduit 4 and the first conduit 2. One end of the first conduit 2 far from the chromatography detector 1 is connected to a micro pump 3. One side of the micro pump 3 is fixedly connected to the right side of the chromatography detector 1. The top of the micro pump 3 is connected to a second conduit 4. The top of the chromatography detector 1 is fixedly connected with a support frame 5. The top of the support frame 5 is fixedly connected with a liquid cylinder 6 with an open top. The bottom of the liquid cylinder 6 penetrates through the support frame 5 and extends to the top of the inner cavity of the support frame 5, and is connected to a drain pipe 7. One end of the second conduit 4 far from the micro pump 3 is connected to the right side of the drain pipe 7. A piston 8 is slidably connected to the inner surface of the drain pipe 7. A driving structure 9 for driving the piston 8 to slide up and down is arranged in the inner cavity of the support frame 5.

[0027] Working principle: When the present utility model is in use, insulating oil is poured into the liquid cylinder 6. When detection is required, the motor 91 is started. The motor 91 drives the cam 92 to rotate, so that the cam 92 and the pulley 95 are in contact and slide. When the cam 92 rotates to the surface closest to the center point, the piston 8 is driven to slide on the inner surface of the drain pipe 7, so that the position of the piston 8 is at the lowest point of the port surface of the second conduit 4, so that the piston 8 is communicated with the second conduit 4, and then the insulating oil enters the second conduit 4. The oil in the second conduit 4 is pumped into the first conduit 2 through the micro pump 3, and finally enters the chromatography detector 1 through the first conduit 2 for detection. When the cam 92 rotates to the surface farthest from the center point, the piston 8 is driven to slide on the inner surface of the drain pipe 7, so that the position of the piston 8 is at the highest point of the port surface of the second conduit 4, so as to achieve sealing, and then the oil stays on the top of the piston 8. Through the spring 96, the elastic force of the spring 96 is used to increase the downward power of the rod 93 to drive the piston 8, replacing the manual pumping and pushing method, achieving the purpose of detecting while pumping, thus facilitating oil injection detection and improving the convenience during detection.

Claims

1. An adding device for chromatographic detection of insulating oil, the adding device is arranged on the top of a chromatographic detector (1), characterized in that: The adding device comprises a conduit 1 (2) connected to the oil inlet end of the chromatographic detector (1); the end of the conduit 1 (2) away from the chromatographic detector (1) is connected to a micro pump (3); one side of the micro pump (3) is fixedly connected to the right side of the chromatographic detector (1); the top of the micro pump (3) is connected to a conduit 2 (4); the top of the chromatographic detector (1) is fixedly connected to a support frame (5); the top of the support frame (5) is fixedly connected to a liquid cylinder (6) with an open top design; the bottom of the liquid cylinder (6) passes through the support frame (5) and extends to the top of the inner cavity of the support frame (5), and is connected to a liquid discharge pipe (7); the end of the conduit 2 (4) away from the micro pump (3) is connected to the right side of the liquid discharge pipe (7); the inner surface of the liquid discharge pipe (7) is slidably connected to a piston (8); the inner cavity of the support frame (5) is provided with a driving structure (9) for driving the piston (8) to slide up and down.

2. The adding device for chromatographic detection of insulating oil according to claim 1, characterized in that: The driving structure (9) comprises a motor (91) fixedly connected to the bottom of the inner cavity of the support frame (5); the output end of the motor (91) is fixedly connected to a cam (92); the axis of the piston (8) is fixedly connected to a rod body (93); the bottom of the rod body (93) passes through the discharge pipe (7) and extends to the bottom of the discharge pipe (7), and slides through the inner surface of the discharge pipe (7); the bottom of the rod body (93) is fixedly connected to a connecting seat (94); the inner surface of the connecting seat (94) is slidably connected to a pulley (95); the outer surface of the pulley (95) is tightly fitted and slid with the surface of the cam (92); and the surface of the rod body (93) is sleeved with a spring (96).

3. The adding device for chromatographic detection of insulating oil according to claim 2, characterized in that: When the surface of the cam (92) closest to the axis point slides in contact with the pulley (95), the piston (8) is driven to be located at the lowest point of the surface of the second (4) port of the conduit.

4. The adding device for chromatographic detection of insulating oil according to claim 2, characterized in that: When the surface of the cam (92) farthest from the axis point slides in contact with the pulley (95), the piston (8) is driven to be located at the highest point of the surface of the second port of the conduit (4).

5. The adding device for chromatographic detection of insulating oil according to claim 2, characterized in that: The top end and the bottom end of the spring (96) are fixedly connected to the bottom of the liquid discharge pipe (7) and the top of the connecting seat (94) respectively.

6. The adding device for chromatographic detection of insulating oil according to claim 1, characterized in that: An end surface of the conduit 1 (2) close to the chromatographic detector (1) is integrally connected with a threaded connector (10), and a surface of the threaded connector (10) is threadedly connected to the oil inlet end of the chromatographic detector (1).

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