Special isolation transformer for oil field

Abstract

The utility model discloses a special isolation transformer for an oil field, which relates to the field of transformers and comprises a protective shell, a first mounting groove is arranged on the upper surface of the protective shell, an oil tank is fixedly mounted in the first mounting groove, a winding component is detachably mounted in the oil tank, fans are arranged on two sides of one end of the protective shell, and a fan is arranged on the other end of the protective shell. A sealing door component is rotatably installed at the position, close to the draught fan, of the protection shell, a liquid cooling box is fixedly installed on the side, away from the sealing door component, of the protection shell, and a plurality of evenly-distributed first-stage cooling fins are fixedly installed on one side of the oil tank. The cooling mode can be changed only by rotating the flange strip, air cooling and liquid cooling can be conveniently replaced, the device can adapt to different working environments, the stability of the device is guaranteed, safety accidents are avoided, internal components are prevented from being corroded, the integrity of the device is guaranteed, the service life is prolonged, and the device can adapt to various severe environments.

Description

Technical Field

[0001] The utility model relates to the field of transformers, in particular to an isolation transformer dedicated to oil fields. Background Art

[0002] An isolation transformer is a special transformer whose main feature is that the input winding and the output winding are electrically isolated from each other. This isolation not only avoids the danger of accidentally touching a charged body and the earth at the same time, but also transmits electrical energy from the primary winding to the secondary winding through magnetic field coupling rather than direct electrical connection, thereby achieving electrical isolation and voltage conversion. The isolation transformer uses the principle of electromagnetic induction to achieve electrical energy transmission and voltage conversion through the action of a magnetic field.

[0003] When using transformers in an oil field environment, flammable and corrosive gases are likely to gather inside the oil field, especially near the oil wells. Most existing transformers are cooled by air. If air cooling is used in this environment, it will not only reduce the air cooling effect, but also cause damage to internal components, and even cause internal components to short-circuit, which will cause the device to overheat and catch fire. If flammable gases are filled in the air at this time, it will cause major safety accidents.

[0004] Most traditional transformers can only use air cooling, because the cost of air cooling is low and the maintenance and overhaul frequency is low. However, the use effect of air cooling is limited in many unstable environments, which can easily cause gas corrosion or other situations inside the device. Liquid cooling has a relatively good cooling effect and will not cause corrosion of components, but the cost is relatively high, the maintenance is relatively frequent, and it cannot be changed in real time according to the environment.

[0005] Therefore, it is necessary to propose an oil field-specific isolation transformer to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an isolation transformer for oil fields to solve the above-mentioned problem that different working modes cannot be selected according to the environment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an isolation transformer dedicated to oil fields, comprising a protective shell, a first mounting groove is provided on the upper surface of the protective shell, an oil tank is fixedly installed inside the first mounting groove, a winding component is detachably installed inside the oil tank, fans are provided on both sides of one end of the protective shell, a closed door component is rotatably installed at a position of the protective shell close to the fan, a liquid cooling box is fixedly installed on the side of the protective shell away from the closed door component, a plurality of evenly distributed primary cooling fins are fixedly installed on one side of the oil tank, a plurality of evenly distributed secondary cooling fins are fixedly installed on one side of the liquid cooling box, a first channel and a second channel are provided inside the protective shell, a fan is fixedly installed inside the protective shell, and the fan is located on one side of the primary cooling fin.

[0008] Preferably, the closed door component includes two baffle doors, a plurality of connecting rods and a side baffle, the two connecting rods are respectively fixedly mounted on the two ends of one side of the side baffle, the two ends of the connecting rods are respectively fixedly mounted on the upper surfaces of the two baffle doors, a rotating plate is fixedly mounted at one corner of the two baffle doors, the rotating plate is rotatably mounted at a corner of the fan, and a stopper is fixedly mounted at the lower end of the side where the two baffle doors are close to each other.

[0009] Preferably, the winding component includes an insulating plate, a primary winding and a secondary winding are fixedly mounted on the lower surface of the insulating plate, a primary interface corresponding to the primary winding is fixedly mounted on one side of the upper surface of the insulating plate, and a secondary interface corresponding to the secondary winding is fixedly mounted on one side of the upper surface of the winding component.

[0010] Preferably, an open groove is opened on the upper surface of the oil tank, the insulating plate is detachably installed inside the open groove, and the primary winding is located inside the oil tank.

[0011] Preferably, side ribs are fixedly installed at positions corresponding to the fans on both sides of the protection shell.

[0012] Preferably, a water inlet pipe and a water outlet pipe are fixedly connected to both sides of the liquid cooling box.

[0013] Preferably, a handle is fixedly mounted on the upper surface of the insulating plate.

[0014] Preferably, the secondary cooling fins extend into the interior of the protective shell.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model provides a liquid cooling box. According to different use environments, the cooling mode can be changed by simply rotating the sidewall strips. Air cooling and liquid cooling can be easily replaced, which is convenient for adapting to different working environments, ensuring the stability of the device, avoiding safety accidents, preventing internal components from being corroded, ensuring the integrity of the device, and increasing the service life. The utility model can adapt to various harsh environments.

[0017] The utility model provides a side guard strip, and when the device is in the air cooling mode, the closed door component can be used as a storage cabinet to store some tools or other items, which is convenient for use by surrounding staff or maintenance personnel. It can have multiple functions and is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the liquid cooling mode structure of the utility model oil field special isolation transformer.

[0019] Figure 2 It is a structural schematic diagram of the air cooling mode of the oil field special isolation transformer of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the protective shell, oil tank and winding components in the utility model.

[0021] Figure 4 It is a cutaway view of the protective shell in the present utility model.

[0022] Figure 5 It is a structural schematic diagram of the closed door component in the utility model.

[0023] In the figure: 1. protective shell; 2. oil tank; 3. closed door component; 4. winding component; 5. liquid cooling box; 11. first installation groove; 12. ventilation groove; 13. side guard strip; 14. fan; 15. first channel; 16. second channel; 21. primary cooling fin; 22. opening groove; 31. baffle door; 32. connecting rod; 33. side baffle; 34. rotating plate; 35. block; 41. insulating plate; 42. primary interface; 43. secondary interface; 44. primary winding; 45. secondary winding; 46. handle; 51. secondary cooling fin; 52. water inlet pipe; 53. water outlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figures 1 to 5 An isolation transformer for oil fields is shown, comprising a protective shell 1, a first mounting groove 11 is provided on the upper surface of the protective shell 1, an oil tank 2 is fixedly installed inside the first mounting groove 11, a winding component 4 is detachably installed inside the oil tank 2, fans 14 are provided on both sides of one end of the protective shell 1, a closed door component 3 is rotatably installed at a position of the protective shell 1 close to the fan 14, a liquid cooling box 5 is fixedly installed on the side of the protective shell 1 away from the closed door component 3, a water inlet pipe 52 and a water outlet pipe 53 are fixedly connected on both sides of the liquid cooling box 5, a plurality of evenly distributed primary cooling fins 21 are fixedly installed on one side of the oil tank 2, a plurality of evenly distributed secondary cooling fins 51 are fixedly installed on one side of the liquid cooling box 5, the secondary cooling fins 51 extend into the interior of the protective shell 1, the interior of the protective shell 1 has a first channel 15 and a second channel 16, a fan 14 is fixedly installed inside the protective shell 1, and the fan 14 is located on one side of the primary cooling fin 21.

[0026] When using transformers in an oil field environment, flammable and corrosive gases are likely to gather inside the oil field, especially near the oil wells. Most existing transformers are cooled by air. If air cooling is used in this environment, it will not only reduce the air cooling effect, but also cause damage to internal components, and even cause internal components to short-circuit, which will cause the device to overheat and catch fire. If flammable gases are filled in the air at this time, it will cause major safety accidents.

[0027] Therefore, the device is provided with a closed door component 3. When the environment is relatively safe, the closed door component 3 can be rotated. At this time, the closed door component 3 is separated from the ventilation groove 12, and the ventilation groove 12 is in an open state. The fan 14 continues to work to drive the air flow to enter from the ventilation groove 12 on one side and pass through the primary cooling fin 21, and then blow out through the ventilation groove 12 on the other side, so as to cool down the inside of the oil tank 2. The interior of the oil tank 2 is filled with cooling oil. At this time, there is no need to pass coolant into the interior of the liquid cooling box 5. It is only necessary to use the fan 14 to air cool the oil tank 2 and the winding component 4. The air cooling is relatively cost-effective, and the maintenance frequency is also less than that of liquid cooling. When the use environment is relatively unsafe, the closed door component 3 is rotated to close the two ventilation grooves 12. At this time, the fan 14 will work to cool the second channel The gas inside 16 is blown toward the first channel 15. Because the air pressure tends to be balanced, the airflow inside the first channel 15 will flow to the second channel 16, thereby forming a cycle. In this process, it is necessary to introduce coolant into the water inlet pipe 52, and connect the water outlet pipe 53 to the coolant return end, so that the airflow absorbs heat from the position of the first-level cooling fin 21 and releases heat from the position of the second-level cooling fin 51, thereby realizing internal circulation, preventing external gas from entering the device, and ensuring the relative safety of the internal cooling environment. According to different use environments, the cooling method can be changed by simply rotating the side guard strip 13. Air cooling and liquid cooling can be easily replaced, which is convenient for adapting to different working environments, ensuring the stability of the device, avoiding safety accidents, avoiding corrosion of internal components, ensuring the integrity of the device, and improving the service life. It can adapt to various harsh environments.

[0028] The closed door component 3 includes two baffle doors 31, multiple connecting rods 32 and a side baffle 33. The two connecting rods 32 are respectively fixedly installed at the two ends of one side of the side baffle 33, and the two ends of the connecting rods 32 are respectively fixedly installed on the upper surfaces of the two baffle doors 31. A rotating plate 34 is fixedly installed at one corner of the two baffle doors 31, and the rotating plate 34 is rotatably installed at a corner of the fan 14. A stopper 35 is fixedly installed at the lower end of the side where the two baffle doors 31 are close to each other, and side retaining strips 13 are fixedly installed at the positions corresponding to the fan 14 on both sides of the protective shell 1.

[0029] When the device is in liquid cooling mode, the two baffle doors 31 block the two ventilation grooves 12, the connecting rod 32 is located on the upper surface of the protective shell 1, the side baffle plate 33 is located on one side of the protective shell 1, and the block 35 is located inside the ventilation groove 12. At this time, the side baffle strip 13 supports the sides of the two baffle doors 31. When the working mode needs to be changed, hold the connecting rod 32 and rotate it to rotate the closed door component 3 ninety degrees. At this time, the block 35 is supported by the side wall of the ventilation groove 12. At this time, the side baffle plate 33 can be used as a bottom plate, the baffle door 31 can be used as a side plate, and the connecting rod 32 can be used as a side rod. At this time, the closed door component 3 can be used as a storage cabinet, and the baffle door 31 is separated from the ventilation groove 12. At this time, the fan 14 can draw air from the outside of the device for cooling. Then, when the device is in air cooling mode, the closed door component 3 can be used as a storage cabinet, which is convenient for storing some tools or other items, and is convenient for use by surrounding staff or maintenance personnel. It can have multiple functions and is convenient and practical.

[0030] The winding component 4 includes an insulating plate 41, a primary winding 44 and a secondary winding 45 are fixedly installed on the lower surface of the insulating plate 41, a primary interface 42 corresponding to the primary winding 44 is fixedly installed on one side of the upper surface of the insulating plate 41, and a secondary interface 43 corresponding to the secondary winding 45 is fixedly installed on one side of the upper surface of the winding component 4. An open groove 22 is opened on the upper surface of the oil tank 2, and the insulating plate 41 is detachably installed inside the open groove 22. The primary winding 44 is located inside the oil tank 2, and a handle 46 is fixedly installed on the upper surface of the insulating plate 41.

[0031] The primary winding 44 is used to connect to an external power source. The middle parts of the primary winding 44 and the secondary winding 45 both have an iron core. When current passes through the primary winding 44, an electromagnetic field will be generated, and the secondary winding 45 will generate current due to the electromagnetic effect, thereby realizing isolated power transmission. The primary interface 42 is used to input current to the primary winding 44, and the secondary interface 43 is used to output the current generated by the secondary winding 45 to supply electrical appliances. Workers can disassemble and carry the winding component 4 through the handle 46.

[0032] Working principle: When the environment is safe, the closed door component 3 can be rotated, and the closed door component 3 is separated from the ventilation groove 12, and the ventilation groove 12 is in an open state. The fan 14 continues to work to drive the air flow to enter from the ventilation groove 12 on one side and pass through the primary cooling fin 21, and then blow out through the ventilation groove 12 on the other side, so as to cool down the inside of the oil tank 2. The inside of the oil tank 2 is filled with cooling oil. At this time, there is no need to pass coolant into the liquid cooling box 5. It is only necessary to cool the oil tank 2 and the winding component 4 through the operation of the fan 14. When the use environment is relatively safe, the air flow enters the first-level cooling fin 21 through the ventilation groove 12 on one side and passes through the primary cooling fin 21, and then blows out through the ventilation groove 12 on the other side, so as to cool down the inside of the oil tank 2. The inside of the oil tank 2 is filled with cooling oil. At this time, there is no need to pass coolant into the inside of the liquid cooling box 5. It is only necessary to cool the oil tank 2 and the winding component 4 through the operation of the fan 14. When it is relatively unsafe, the closed door component 3 is rotated to close the two ventilation grooves 12. At this time, the fan 14 will blow the gas inside the second channel 16 to the first channel 15. Because the air pressure tends to be balanced, the airflow inside the first channel 15 will flow to the second channel 16, thereby forming a cycle. In this process, it is necessary to introduce coolant into the water inlet pipe 52, and connect the water outlet pipe 53 to the coolant return end, so that the airflow absorbs heat from the position of the first-level cooling fin 21 and releases heat from the position of the second-level cooling fin 51, thereby realizing internal circulation and preventing external gas from entering the device.

[0033] The primary winding 44 is used to connect to an external power source. The middle parts of the primary winding 44 and the secondary winding 45 both have an iron core. When current passes through the primary winding 44, an electromagnetic field will be generated, and the secondary winding 45 will generate current due to the electromagnetic effect, thereby realizing isolated power transmission. The primary interface 42 is used to input current to the primary winding 44, and the secondary interface 43 is used to output the current generated by the secondary winding 45 to supply electrical appliances. Workers can disassemble and carry the winding component 4 through the handle 46.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An isolation transformer for oil fields, comprising a protective housing (1), characterized in that: The upper surface of the protective shell (1) is provided with a first mounting groove (11), an oil tank (2) is fixedly mounted inside the first mounting groove (11), a winding component (4) is detachably mounted inside the oil tank (2), air permeable grooves (12) are provided on both sides of one end of the protective shell (1), a closed door component (3) is rotatably mounted on the protective shell (1) near the air permeable groove (12), a liquid cooling box (5) is fixedly mounted on the side of the protective shell (1) away from the closed door component (3), a plurality of evenly distributed primary cooling fins (21) are fixedly mounted on one side of the oil tank (2), a plurality of evenly distributed secondary cooling fins (51) are fixedly mounted on one side of the liquid cooling box (5), a first channel (15) and a second channel (16) are provided inside the protective shell (1), a fan (14) is fixedly mounted inside the protective shell (1), and the fan (14) is located on one side of the primary cooling fin (21).

2. The isolation transformer for oil fields according to claim 1 is characterized in that: The closed door component (3) comprises two baffle doors (31), a plurality of connecting rods (32) and a side baffle (33); the two connecting rods (32) are respectively fixedly mounted at two ends of one side of the side baffle (33); the two ends of the connecting rod (32) are respectively fixedly mounted on the upper surfaces of the two baffle doors (31); a rotating plate (34) is fixedly mounted at one corner of the two baffle doors (31); the rotating plate (34) is rotatably mounted at a corner of the fan (14); and a stopper (35) is fixedly mounted at the lower ends of the two baffle doors (31) on a side close to each other.

3. The isolation transformer for oil fields according to claim 2 is characterized in that: The winding component (4) comprises an insulating plate (41), a primary winding (44) and a secondary winding (45) being fixedly mounted on the lower surface of the insulating plate (41), a primary interface (42) corresponding to the primary winding (44) being fixedly mounted on one side of the upper surface of the insulating plate (41), and a secondary interface (43) corresponding to the secondary winding (45) being fixedly mounted on one side of the upper surface of the winding component (4).

4. The isolation transformer for oil fields according to claim 3 is characterized in that: An open groove (22) is provided on the upper surface of the oil tank (2), the insulating plate (41) is detachably mounted inside the open groove (22), and the primary winding (44) is located inside the oil tank (2).

5. The isolation transformer for oil fields according to claim 4 is characterized in that: Side guard strips (13) are fixedly mounted at positions on both sides of the protective housing (1) corresponding to the fan (14).

6. The isolation transformer for oil fields according to claim 5, characterized in that: A water inlet pipe (52) and a water outlet pipe (53) are respectively fixedly connected to both sides of the liquid cooling box (5).

7. The isolation transformer for oil fields according to claim 6, characterized in that: A handle (46) is fixedly mounted on the upper surface of the insulating plate (41).

8. The isolation transformer for oil fields according to claim 7 is characterized in that: The secondary cooling fins (51) extend into the interior of the protective shell (1).

Images