A transformer oil powder adsorbent column with regenerable adsorbent and use method thereof

Abstract

The present invention discloses a transformer oil powder adsorbent column with a regenerable adsorbent and a method for using the same, comprising an adsorbent column body and an electric heating device, wherein the adsorbent column body is connected to one end of the electric heating device, a spiral groove with only a spiral distribution is arranged on the circumference of the adsorbent column body, the spiral groove is filled with transformer oil powder adsorbent, a heating core wire is arranged at the center of the adsorbent column body, and the heating core wire is electrically connected to the electric heating device. Beneficial effects of the present invention: the powdered adsorbent of the present invention can be regenerated, heated and unblocked, can be extended, and has a reasonable and firm interface, which solves the problem that the oil circuit of the oil tank is easily blocked, and the granular adsorbent is used after being turned into powder, which saves adsorbent, has higher transportation efficiency, and prevents blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer oil adsorption, and in particular to a transformer oil powder adsorbent column with a regenerable adsorbent and a method for using the same. Background Art

[0002] The adsorption regeneration of the prior art closest to the present invention is the self-heating of the South African oil filter to burn the adsorbent. The patent number is: 201911143229.X. According to the patent "Automatic purification device and use method of transformer insulating oil adsorbent", its main structure is: the air circuit system passes through the tank body in the vertical direction and cooperates with the tank body; the oil circuit system passes through the tank body in the horizontal direction and cooperates with the tank body; the adsorption device is connected to the inside of the tank body, and the adsorbent is placed inside the adsorption device; the electric heater is arranged on the top of the tank body and connected to the thermal resistor; the thermal resistor is arranged inside the adsorption device and contacts with the adsorbent.

[0003] The device adds a heating device to the adsorbent, sets a high-precision pressure sensor at the oil pipe mouth, and experimentally links the pressure change with the amount of impurities in the adsorbent. Through data-supported automatic control, the impurities in the adsorbent are heated and burned, solving the problem that the existing technology cannot work online and can only be shut down to disassemble and replace the adsorbent. Such regeneration cannot be used for powdered adsorbent regeneration and powdered blockage of the oil circuit, so it needs to be regenerated while dredging. Because the heating wire is not easy to install, the dredging steel wire is directly used as the heating resistor, reducing the possibility of blockage and long pipes that are difficult to repair.

[0004] Therefore, in order to solve the above problems, it is necessary to propose a transformer oil powder adsorbent column with regenerable adsorbent and a method for using the same. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a transformer oil powder adsorbent column with a regenerable adsorbent and a method of using the same to solve the above-mentioned problems.

[0006] A transformer oil powder adsorbent column with a regenerable adsorbent comprises an adsorption column body and an electric heating device, wherein the adsorption column body is connected to one end of the electric heating device, a spiral groove having only a spiral distribution is arranged on the circumference of the adsorption column body, the spiral groove is filled with transformer oil powder adsorbent, a heating core wire is arranged at the center position of the adsorption column body, and the heating core wire is electrically connected to the electric heating device.

[0007] Preferably, an insulating layer is provided between the heating core wire and the adsorption column body.

[0008] Preferably, the insulating layer is made of composite ceramic material.

[0009] Preferably, the adsorption column body is made of stainless steel.

[0010] Preferably, the transformer oil powder adsorbent is a microporous silicon-aluminum adsorbent.

[0011] A method for using a transformer oil powder adsorbent column with a regenerable adsorbent, comprising the following steps:

[0012] Step 1: When in use, close the inlet and outlet of the oil pipe; judge whether adsorbent purification is needed based on the difference between the pressure at the oil inlet pipe and the pressure at the oil outlet pipe, and insert the adsorption column body into the oil pipe;

[0013] Step 2: During adsorption, close the valve of the oil inlet pipe, open the air inlet pipe of the oil pipe, drain the insulating oil inside the oil pipe, and then close the valve of the oil outlet pipe;

[0014] Step 3: Turn on the air pump to fill the oil pipe with air, then close the air inlet pipe and the air pump;

[0015] Step 4: Turn on the electric heating device and set the heating temperature to be lower than the ignition point or melting point of the adsorbent material; heat and burn the impurities in the adsorbent through the heating core wire, and turn off the electric heating device after a certain period of time;

[0016] Step 5: Open the air inlet pipe, air pump and exhaust pipe of the oil pipe, extract the oil out of the tank through the air path system, and enter the dust collector for collection and treatment;

[0017] Step 6: Close the valve of the gas system, open the valve of the oil inlet pipe and the valve of the oil outlet pipe, and reconnect the oil pipe to the insulating oil purification cycle.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the powdered adsorbent of the present invention can be regenerated, unblocked while heated, and can be extended, which solves the problem of easy blockage of the oil line of the oil tank. At the same time, the granular adsorbent can be converted into powder for use, which saves adsorbent, has higher transportation efficiency, and prevents blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of a transformer oil powder adsorbent column of a regenerable adsorbent provided by the present invention;

[0020] Figure 2 yes Figure 1 The local structure diagram of

[0021] Figure 3 It is a structural diagram of the adsorption column body of the present invention;

[0022] Figure 4 It is a cross-sectional structural diagram of the interior of the adsorption column body of the present invention.

[0023] Reference numerals in the figure: 1. adsorption column body; 2. electric heating device; 3. spiral groove; 4. heating core wire; 5. transformer oil powder adsorbent; 6. insulation layer. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0028] like Figure 1 Combined with Figures 2 to 4 As shown, a transformer oil powder adsorbent column with a regenerable adsorbent includes an adsorption column body 1 and an electric heating device 2, wherein the adsorption column body 1 is connected to one end of the electric heating device 2, a spiral groove 3 with only a spiral distribution is provided on the circumference of the adsorption column body 1, and the spiral groove 3 is filled with a transformer oil powder adsorbent 5, and a heating core wire 4 is provided at the center position of the adsorption column body 1, and the heating core wire 4 is electrically connected to the electric heating device 2.

[0029] Furthermore, an insulating layer 6 is provided between the heating core wire 4 and the adsorption column body 1 .

[0030] Furthermore, the insulating layer 6 is made of composite ceramic material.

[0031] Furthermore, the adsorption column body 1 is made of stainless steel.

[0032] Furthermore, the transformer oil powder adsorbent 5 is a microporous silicon-aluminum adsorbent.

[0033] A method for using a transformer oil powder adsorbent column with a regenerable adsorbent, comprising the following steps:

[0034] Step 1: When in use, close the air inlet and outlet of the oil pipe; judge whether adsorbent purification is needed by the difference between the pressure at the oil inlet pipe and the pressure at the oil outlet pipe, and insert the adsorption column body 1 into the oil pipe;

[0035] Step 2: During adsorption, close the valve of the oil inlet pipe, open the air inlet pipe of the oil pipe, drain the insulating oil inside the oil pipe, and then close the valve of the oil outlet pipe;

[0036] Step 3: Turn on the air pump to fill the oil pipe with air, then close the air inlet pipe and the air pump;

[0037] Step 4: Turn on the electric heating device 2, set the heating temperature to be lower than the ignition point or melting point of the adsorbent material; heat and burn the impurities in the adsorbent through the heating core wire, and turn off the electric heating device after a certain period of time;

[0038] Step 5: Open the air inlet pipe, air pump and exhaust pipe of the oil pipe, extract the oil out of the tank through the air path system, and enter the dust collector for collection and treatment;

[0039] Step 6: Close the valve of the gas system, open the valve of the oil inlet pipe and the valve of the oil outlet pipe, and reconnect the oil pipe to the insulating oil purification cycle.

[0040] Compared with the prior art, the present invention has the following beneficial effects: the powdered adsorbent of the present invention can be regenerated, unblocked while heated, and can be extended, which solves the problem of easy blockage of the oil line of the oil tank. At the same time, the granular adsorbent can be converted into powder for use, which saves adsorbent, has higher transportation efficiency, and prevents blockage.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A transformer oil powder adsorbent column with a regenerable adsorbent, characterized in that: The invention comprises an adsorption column body (1) and an electric heating device (2), wherein the adsorption column body (1) is connected to one end of the electric heating device (2), a spiral groove (3) having only a spiral distribution is provided on the circumference of the adsorption column body (1), the spiral groove (3) is filled with a transformer oil powder adsorbent (5), and a heating core wire (4) is provided at the center position of the adsorption column body (1), and the heating core wire (4) is electrically connected to the electric heating device (2); An insulating layer (6) is provided between the heating core wire (4) and the adsorption column body (1); The transformer oil powder adsorbent (5) is a microporous silicon-aluminum adsorbent.

2. The transformer oil powder adsorbent column with a regenerable adsorbent as claimed in claim 1, characterized in that: The insulating layer (6) is made of composite ceramic material.

3. The transformer oil powder adsorbent column with a regenerable adsorbent as claimed in claim 1, characterized in that: The adsorption column body (1) is made of stainless steel.

4. A method for using a transformer oil powder adsorbent column with a regenerable adsorbent as claimed in any one of claims 1 to 3, characterized in that: It includes the following steps: Step 1: When in use, close the inlet and outlet of the oil pipe; determine whether adsorbent purification is needed based on the difference between the pressure at the oil inlet pipe and the pressure at the oil outlet pipe; Step 2: During adsorption, close the valve of the oil inlet pipe, open the air inlet pipe of the oil pipe, drain the insulating oil inside the oil pipe, then close the valve of the oil outlet pipe and insert the adsorption column body (1) into the oil pipe; Step 3: Turn on the air pump to fill the oil pipe with air, then close the air inlet pipe and the air pump; Step 4: Turn on the electric heating device (2), set the heating temperature to be lower than the ignition point or melting point of the adsorbent material; heat and burn the impurities in the adsorbent by heating the core wire, and turn off the electric heating device after a certain period of time; Step 5: Open the air inlet pipe, air pump and exhaust pipe of the oil pipe, extract the oil out of the tank through the air path system, and enter the dust collector for collection and treatment; Step 6: Close the valve of the gas system, open the valve of the oil inlet pipe and the valve of the oil outlet pipe, and reconnect the oil pipe to the insulating oil purification cycle.

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