Natural ester insulating oil anti-oxidation sampling device

Abstract

The utility model relates to an anti-oxidation sampling device for natural ester insulating oil. The anti-oxidation sampling device comprises a sampler body, a cavity is formed in the sampler body, one end of the sampler body is communicated with a sampling opening, a piston rod penetrates through the sampler body, a piston is fixedly mounted at one end of the piston rod, a connecting opening is fixedly mounted on the sampler body, and the connecting opening is in threaded connection with a collecting bottle; a first sealing head is arranged in the sampler body, a first connecting block is fixedly mounted in the sampler body, a second sealing head is arranged in the sampler body, a second connecting block is fixedly mounted in the sampler body, the first connecting block and the first sealing head are connected through a spring, and the second connecting block and the second sealing head are connected through a spring; by arranging the first sealing head and the second sealing head, the insulating oil can only enter the sampler body and the collecting bottle in one direction, so that the sealing performance during sampling is improved, and the insulating oil is prevented from being oxidized or volatilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural ester insulating oil sampling, and particularly relates to an anti-oxidation sampling device for natural ester insulating oil. Background Technique

[0002] Natural ester insulating oil is an insulating and cooling medium used in transformers, mainly refined from natural raw materials such as vegetable oils. During the application of natural ester insulating oil, sampling and testing are important links to ensure its stable performance, safety and reliability. Through sampling and testing, the aging condition, pollution degree of natural ester insulating oil and whether there are other potential problems can be understood in time;

[0003] The existing natural ester insulating oil sampling device is prone to directly expose the sample to the outside during the sampling process, resulting in sample volatilization or being contaminated by external substances, affecting the accuracy of subsequent testing, and usually not protecting the sampling head, resulting in the sampling head being contaminated or damaged. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-oxidation sampling device for natural ester insulating oil to solve the problems existing in the background technique.

[0005] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows: An anti-oxidation sampling device for natural ester insulating oil, including a sampler body. The inside of the sampler body is a cavity. One end of the sampler body is communicated with a sampling port. The other end of the sampler body is slidably penetrated by a piston rod. One end of the piston rod is fixedly installed with a piston matching the cavity of the sampler body. The lower end of the sampler body is fixedly installed with a connection port near one side of the sampling port. The connection port is threadedly connected with a collection bottle. The insulating oil is drawn into the sampler body from the sampling port through the piston and then collected by the collection bottle, thus completing the sampling work;

[0006] A first sealing head matching the sampling port is arranged inside the sampler body. A first connecting block is fixedly installed at one end of the sampler body near the first sealing head. A second sealing head matching the connection port is arranged inside the sampler body. A second connecting block is fixedly installed at one end of the sampler body near the second sealing head. Both between the first connecting block and the first sealing head and between the second connecting block and the second sealing head are connected by springs. By setting the first sealing head and the second sealing head, the insulating oil can only enter the inside of the sampler body and the collection bottle unidirectionally, improving the sealing performance during sampling and avoiding oxidation or volatilization of the insulating oil.

[0007] A number of uniformly distributed push blocks are fixedly installed at one end of the mouth of the collection bottle. By setting the push blocks, when the collection bottle is screwed into the connection port, the second sealing head can be lifted, enabling insulating oil to enter the collection bottle through the gaps between the push blocks.

[0008] The collection bottle is a brown glass bottle, which has a light-shielding effect and does not affect observation.

[0009] A sampling head communicating with the sampling port is fixedly installed on the sampling device body. A protection component is provided on the sampling head. The protection component includes a mounting shell, which is slidably installed outside the sampling device body and matches the sampling head. The mounting shell is provided with an opening matching the sampling head. At the opening inside the mounting shell, there are two opposite blocking blocks, and the blocking blocks are trapezoidal blocks. The blocking blocks are slidably connected to the mounting shell through two mounting rods, and a closing spring is sleeved on each mounting rod. By setting the protection component, the sampling head can be protected from damage and external pollution, and the contact between the insulating oil and the outside during sampling can be further reduced.

[0010] A reset ring is fixedly installed inside the mounting shell near the sampling device body. A reset spring is fixedly connected between the reset ring and the sampling device body, so that the mounting shell can reset itself, improving convenience and avoiding forgetting to close.

[0011] The other end of the piston rod is fixedly installed with a pull rod, which is convenient for moving the piston rod.

[0012] The beneficial effects of the present utility model:

[0013] By setting the first sealing head and the second sealing head, the insulating oil can only enter the sampling device body and the inside of the collection bottle unidirectionally, improving the sealing performance during sampling and avoiding oxidation or volatilization of the insulating oil. By setting the protection component, the sampling head can be protected from damage and external pollution, and the contact between the insulating oil and the outside during sampling can be further reduced. Description of the Drawings

[0014] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0015] Figure 1 It is a schematic structural diagram of a sampling device for preventing oxidation of natural ester insulating oil of the present utility model;

[0016] Figure 2 It is a schematic cross-sectional view of a sampling device for preventing oxidation of natural ester insulating oil of the present utility model;

[0017] Figure 3This is the front sectional view of an anti-oxidation sampling device for natural ester insulating oil of the present utility model;

[0018] Figure 4 This is the schematic sectional view of the installation shell in an anti-oxidation sampling device for natural ester insulating oil of the present utility model.

[0019] The main component symbols are explained as follows: sampler body 100, sampling port 101, piston rod 102, piston 103, connection port 104, collection bottle 105, first sealing head 201, first connection block 202, second sealing head 203, second connection block 204, spring 205, push block 206, sampling head 300, installation shell 301, stop block 302, installation rod 303, closing spring 304, reset ring 305, reset spring 306, pull rod 401. Specific embodiments

[0020] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] Embodiment 1:

[0022] As Figures 1-4 shown, an anti-oxidation sampling device for natural ester insulating oil includes a sampler body 100. The inside of the sampler body 100 is a cavity. One end of the sampler body 100 is communicated with a sampling port 101. The other end of the sampler body 100 is slidably penetrated by a piston rod 102. One end of the piston rod 102 is fixedly installed with a piston 103 that matches the cavity of the sampler body 100. One side of the lower end of the sampler body 100 close to the sampling port 101 is fixedly installed with a connection port 104. The connection port 104 is threadedly connected with a collection bottle 105. The insulating oil is pumped into the sampler body 100 from the sampling port 101 through the piston 103, and then collected through the collection bottle 105, thereby completing the sampling work;

[0023] A first sealing head 201 that matches the sampling port 101 is provided inside the sampler body 100. A first connection block 202 is fixedly installed at one end of the sampler body 100 close to the first sealing head 201. A second sealing head 203 that matches the connection port 104 is provided inside the sampler body 100. A second connection block 204 is fixedly installed at one end of the sampler body 100 close to the second sealing head 203. Both between the first connection block 202 and the first sealing head 201 and between the second connection block 204 and the second sealing head 203 are connected by springs 205. By providing the first sealing head 201 and the second sealing head 203, the insulating oil can only enter the sampler body 100 and the inside of the collection bottle 105 unidirectionally, improving the sealing performance during sampling and avoiding oxidation or volatilization of the insulating oil.

[0024] A plurality of uniformly distributed push blocks 206 are fixedly installed at one end of the mouth of the collection bottle 105. By setting the push blocks 206, when the collection bottle 105 is screwed into the connection port 104, the second sealing head 203 can be pushed up, enabling insulating oil to enter the collection bottle 105 through the gaps between the plurality of push blocks 206.

[0025] The collection bottle 105 is a brown glass bottle, thus achieving a light-shielding effect without affecting observation.

[0026] The sampler body 100 is fixedly installed with a sampling head 300 communicated with the sampling port 101. A protection component is provided on the sampling head 300. The protection component includes an installation shell 301. The installation shell 301 is slidably installed outside the sampler body 100 and matches the sampling head 300. The installation shell 301 is provided with an opening matching the sampling head 300. Two opposite blocking blocks 302 are provided at the opening inside the installation shell 301, and the blocking blocks 302 are trapezoidal blocks. The blocking blocks 302 are slidably connected to the installation shell 301 through two installation rods 303, and a closing spring 304 is sleeved on each installation rod 303. By setting the protection component, the sampling head 300 can be protected from damage and external contamination, and the contact between the insulating oil and the outside during sampling can be further reduced.

[0027] A reset ring 305 is fixedly installed inside the installation shell 301 near the sampler body 100. A reset spring 306 is fixedly connected between the reset ring 305 and the sampler body, so that the installation shell 301 can reset itself, improving convenience and avoiding forgetting to close.

[0028] The other end of the piston rod 102 is fixedly installed with a pull rod 401, thus facilitating the movement of the piston rod 102.

[0029] When this embodiment is in use, the installation shell 301 is aligned with the extraction port in the device where the insulating oil is located and pushed inward, so that the installation shell 301 moves on the sampler body 100. During this process, the sampling head 300 contacts the blocking block 302. Since the blocking block 302 is trapezoidal, the sampling head 300 will push the blocking block 302 away, enabling the sampling head 300 to enter the sampling point from the opening of the installation shell 301. Then, the piston rod 102 is pulled outward. Under the action of pressure, the first sealing head 201 will compress the spring 205 connected to it, opening the sampling port 101 sealed by it, enabling the insulating oil to enter the inside of the sampler body 100. After sampling is completed, the spring 205 is released, closing the sampling port 101. The collection bottle 105 is screwed into the connection port 104. During this process, the push block 206 gradually pushes the second sealing head 203 and makes the second sealing head 203 compress the spring 205 connected to it to collect the insulating oil in the sampler body 100. After collection is completed, the collection bottle 105 is unscrewed and sealed, and the spring 205 is released, closing the connection port.

[0030] In this embodiment, by setting the first sealing head 201 and the second sealing head 203, the insulating oil can only enter the sampler body 100 and the collection bottle 105 unidirectionally, improving the sealing performance during sampling, avoiding the oxidation or volatilization of the insulating oil. By setting the protection component, the sampling head 300 is protected from damage and external pollution, and the contact between the insulating oil and the outside during sampling can be further reduced.

[0031] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A natural ester insulating oil anti-oxidation sampling device, comprising a sampler body, characterized in that: The interior of the sampler body is a cavity. One end of the sampler body is connected to a sampling port, and the other end of the sampler body is slidably penetrated by a piston rod. One end of the piston rod is fixedly installed with a piston that matches the cavity of the sampler body. A connection port is fixedly installed on the lower end of the sampler body near one side of the sampling port, and the connection port is threadedly connected to a collection bottle; A first sealing head that matches the sampling port is provided inside the sampler body. A first connection block is fixedly installed at one end of the sampler body near the first sealing head. A second sealing head that matches the connection port is provided inside the sampler body. A second connection block is fixedly installed at one end of the sampler body near the second sealing head. Both between the first connection block and the first sealing head and between the second connection block and the second sealing head are connected by springs.

2. The antioxidant sampling device for natural ester insulating oil according to claim 1, wherein: A number of uniformly distributed push blocks are fixedly installed at one end of the mouth of the collection bottle.

3. The antioxidant sampling device for natural ester insulating oil according to claim 2, characterized in that: The collection bottle is a brown glass bottle.

4. The anti-oxidation sampling device for natural ester insulating oil according to claim 1, characterized in that: The sampler body is fixedly installed with a sampling head that communicates with the sampling port. A protection component is provided on the sampling head. The protection component includes an installation shell. The installation shell is slidably installed on the outside of the sampler body and matches the sampling head. The installation shell is provided with an opening that matches the sampling head. Two opposite stop blocks are provided at the opening inside the installation shell, and the stop blocks are trapezoidal blocks. The stop blocks are slidably connected to the installation shell through two installation rods, and closing springs are sleeved on each installation rod.

5. The anti-oxidation sampling device for natural ester insulating oil according to claim 4, characterized in that: A reset ring is fixedly installed inside the installation shell near the sampler body, and a reset spring is fixedly connected between the reset ring and the sampler body.

6. The antioxidant sampling device for natural ester insulating oil according to claim 1, wherein: The other end of the piston rod is fixedly installed with a pull rod.

Images