CN210808063U - Ventilation and cooling device for energy-saving control cabinet of oil field pumping unit - Google Patents

Abstract

The utility model relates to the technical field of ventilation and heat dissipation devices, in particular to a ventilation and heat dissipation device for an energy-saving control cabinet of oil pumping units; the utility model comprises a closed cabinet body; A first filter device and a second filter device are fixedly installed on the inner side of the cabinet from the outside to the inside in sequence, a cooling air duct is arranged on the inner side of the left side panel of the closed cabinet body, and at least a A heat sink is provided with at least one air outlet at the lower part of the closed cabinet. The utility model has a reasonable and compact structure, is convenient to use, and achieves the purpose of exchanging heat between the outside air and the hot air in the closed cabinet through the cooperative use of the closed cabinet, the first filter device, the second filter device and the heat dissipation device, and has the advantages of safety and reliability. It has the characteristics of good heat dissipation effect, convenient operation, greatly reduces the frequency and cost of maintenance, and ensures the normal operation of the equipment.

Description

Ventilation and cooling device for energy-saving control cabinet of oil field pumping unit

technical field

The utility model relates to the technical field of ventilation and heat dissipation devices, in particular to a ventilation and heat dissipation device for an energy-saving control cabinet of oil pumping units.

Background technique

The working principle of the beam pumping unit currently used in the oil field is: powered by the motor, the high-speed rotation of the motor is converted into the low-speed rotation of the pumping unit crank through the reducer, and the crank-connecting-beam mechanism rotates The movement becomes the up and down reciprocating motion of the donkey head of the pumping unit, and the deep well pump is driven to work by the rope suspension assembly. Because the pumping unit has to work uninterrupted for many years, in order to save energy and improve production capacity, the energy-saving control cabinet is generally used for power supply. The energy-saving control cabinet is realized by frequency conversion technology. So as to achieve the purpose of energy saving and production capacity. The energy-saving control cabinet has the action of the mechanical contact of the AC contactor during the operation, and the inverter generates a large amount of heat during operation, which needs to be dissipated from the cabinet in time, which puts forward higher requirements for use in windy and sandy areas.

The cooling device of the existing energy-saving control cabinet is mainly composed of three parts: the air inlet, the air outlet, and the cooling fan; the air inlet: the two sides of the cabinet are punched into a louver shape, and the filter cotton is installed inside the louver to be fixed by pressing strips and screws; Air outlet: the bottom of the edge of the upper cover of the cabinet is an open air outlet; cooling fan: a mounting bracket is designed at the top of the cabinet to be flat-mounted in the cabinet. During normal operation, the fresh air enters the cabinet from the air inlet and is discharged from the air outlet through the fan pressurization, which can effectively discharge the heat generated in the cabinet, so that the energy-saving control cabinet can operate normally.

However, when the cooling device of the existing energy-saving control cabinet is used, especially in the field with heavy wind and sand, we found that almost all the cooling fans of the variable frequency control cabinet cannot rotate. The sand fills up and the fan blades are stuck, so the temperature inside the cabinet continues to rise, and eventually the inverter shuts down because the temperature is too high; the main reason for the problem is that the open air outlet will change in windy weather. The passage of sand and dust into the cabinet will cause serious dust accumulation inside the cabinet. After a strong wind, it will cause many problems such as the fan stuck, the poor contact of the AC contactor, the poor contact of the transfer switch and the button, etc., so that the energy-saving control cabinet cannot be normal. Operation, increase the frequency of maintenance, waste a lot of manpower and material resources, affecting the normal production of oil fields.

SUMMARY OF THE INVENTION

The utility model provides a ventilation and heat-dissipating device for an energy-saving control cabinet of an oil field pumping unit, which overcomes the above-mentioned deficiencies of the prior art, and can effectively solve the problem of the existence of fan blades when the heat-dissipating device of the existing energy-saving control cabinet is used in a field with heavy wind and sand. It is easy to be stuck by sand, poor contact of AC contactor, poor contact of transfer switch and button, etc., which makes the energy-saving control cabinet unable to operate normally, increases the frequency of maintenance, wastes a lot of manpower and material resources, and affects the normal operation of the oil field. production problems.

The technical scheme of the utility model is realized by the following measures: a ventilation and heat dissipation device for an energy-saving control cabinet of an oil field pumping unit, including a closed cabinet; an air inlet is provided at the lower part of the right side of the closed cabinet, and an air inlet corresponding to the position of the air inlet is provided. A first filter device and a second filter device are fixedly installed on the inner side of the airtight cabinet in order from outside to inside. The air inlet end of the first filter device is communicated with the air inlet of the airtight cabinet body, and the air outlet end of the first filter device is connected to The air inlet end of the second filter device is connected, and the air outlet end of the second filter device is communicated with the cavity of the airtight cabinet. The inner side of the left side panel of the airtight cabinet is provided with a cooling air duct in the upper and lower directions. At least one cooling device is fixedly installed on the inner side of the upper left side panel of the cabinet, and at least one air outlet communicated with the cooling air duct is arranged at the lower part of the left side panel of the airtight cabinet.

The following are further optimizations or/and improvements to the above-mentioned technical solutions of the utility model:

The above-mentioned two heat sinks are fixedly installed on the inner side of the upper left side panel of the airtight cabinet along the front-rear direction at intervals.

The above-mentioned cooling device is a cooling fan.

The above-mentioned heat dissipation air duct is a funnel-shaped heat dissipation groove with a large upper and a lower small.

The above-mentioned first filter device is at least one layer of air filter cotton; or/and, the second filter device is an air filter.

The above-mentioned air outlet is an oblique air outlet with a high inner and an outer low, and the included angle between the air outlet and the left side panel of the airtight cabinet is 5 degrees to 10 degrees.

The above-mentioned closed cabinet is provided with a cabinet door on the front or rear side, a handle is fixedly installed on the outer side of the middle part of the cabinet door, and a sealing ring or a rubber sealing strip is fixedly installed on the inner and outer periphery of the cabinet door.

The utility model has a reasonable and compact structure and is convenient to use. After filtering and exchanging heat with the hot air in the closed cabinet, it is discharged through the air outlet, which has the characteristics of safety, reliability and good heat dissipation effect, which prevents the fan blades from being stuck by the sand and soil in the closed cabinet. The equipment cannot operate normally, which facilitates the operation, greatly reduces the frequency and cost of maintenance, and ensures the normal operation of the equipment.

Description of drawings

Fig. 1 is a left partial perspective structural schematic diagram of the preferred embodiment of the present utility model.

Accompanying drawing 2 is the right side view structure schematic diagram of the utility model.

Accompanying drawing 3 is the axonometric drawing 1 of the utility model.

Accompanying drawing 4 is the axonometric drawing two of the utility model.

The codes in the drawings are: 1 is a closed cabinet, 2 is an air inlet, 3 is a first filter device, 4 is a cooling air duct, 5 is a cooling device, and 6 is an air outlet.

Detailed ways

The present invention is not limited by the following examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention.

In the present utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout of Figure 1 of the specification, such as: the positions of front, rear, upper, lower, left, right, etc. The relationship is determined according to the layout direction of FIG. 1 of the specification.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in Figures 1, 2, 3, and 4, the ventilation and heat dissipation device of the oil field pumping unit energy-saving control cabinet includes a closed cabinet 1; A first filter device 3 and a second filter device are fixedly installed on the inner side of the airtight cabinet 1 from the outside to the inside. The air inlet end of the first filter device 3 is communicated with the air inlet 2 of the airtight cabinet 1. The air outlet end of the device 3 is communicated with the air inlet end of the second filter device, and the air outlet end of the second filter device is communicated with the cavity of the airtight cabinet 1 . At least one heat dissipation device 5 is fixedly installed on the inner side of the left side panel of the airtight cabinet 1, and at least one heat dissipation device 5 is arranged on the lower part of the left panel of the airtight cabinet 1 in communication with the heat dissipation air duct 4. Air outlet 6. In this way, through the cooperative use of the airtight cabinet 1, the first filter device 3, the second filter device, the heat dissipation device 5, the air inlet 2, the heat dissipation air duct 4 and the air outlet 6 on the airtight cabinet 1, the external air is filtered. After exchanging heat with the hot air in the airtight cabinet 1, it is discharged through the air outlet 6, which has the characteristics of safety, reliability and good heat dissipation effect, which prevents the airtight cabinet body from being stuck due to the fan blade being stuck by the sand in the scene with heavy wind and sand. The equipment in 1 cannot operate normally, which is convenient for operation, greatly reduces the frequency and cost of maintenance, and ensures the normal operation of the equipment. When in use, the corresponding electrical equipment can be installed in the airtight cabinet 1 .

According to actual needs, the ventilation and heat dissipation device of the above-mentioned oil field pumping unit energy-saving control cabinet can be further optimized or/and improved:

As shown in FIGS. 1 , 3 and 4 , two heat sinks 5 are fixedly installed on the inner side of the upper left panel of the closed cabinet 1 along the front-rear direction. In this way, two heat dissipation devices 5 are installed on the heat dissipation air duct 4, the purpose is to generate a larger wind pressure when the heat dissipation device 5 is working, so that the sand will not pass through the air outlet 6 on the airtight cabinet 1 in windy weather Enter the inside of the closed cabinet 1.

According to needs, the heat dissipation device 5 is a heat dissipation fan. In this way, the cooling fan is more practical and easier to maintain.

As shown in Figures 3 and 4, the heat dissipation air duct 4 is a funnel-shaped heat dissipation groove with a large upper part and a small lower part. In this way, the heat-dissipating air duct 4 is convenient to discharge the hot air after heat exchange in the airtight cabinet 1 through the heat-dissipating air duct 4 and the air outlet 6 in time, so that the temperature in the airtight cabinet 1 is always kept appropriate and the electrical appliances in the airtight cabinet 1 are ensured. The device can function normally.

According to requirements, the first filter device 3 is at least one layer of air filter cotton; or/and, the second filter device is an air filter. In this way, the first filter device 3 is convenient to filter out solid impurities such as sand particles in the air, and the second filter device is convenient to filter out suspended matter such as dust in the air, so that the air entering the closed cabinet 1 is clean, thereby preventing heat dissipation. The fan blades of the fan are stuck by the sand and soil, so that the electrical equipment in the closed cabinet 1 cannot operate normally.

According to needs, the air outlet 6 is an oblique air outlet 6 with a high inner and an outer low, and the included angle between the air outlet 6 and the left side plate of the airtight cabinet 1 is 5 degrees to 10 degrees. The air outlet 6 is a horizontal air outlet in the front and rear directions; in this way, the air outlet 6 has a certain slope, the purpose is to prevent sand and soil from accumulating at the air outlet 6, and will not pass through the air outlet 6 on the airtight cabinet 1 in windy weather And the cooling air duct 4 enters the inside of the closed cabinet 1 .

According to requirements, a cabinet door is provided on the front or rear side of the closed cabinet 1, a handle is fixedly installed on the outer side of the middle part of the cabinet door, and a sealing ring or a rubber sealing strip is fixedly installed on the inner and outer periphery of the cabinet door. In this way, the sealing ring or the rubber sealing strip facilitates better sealing performance after the cabinet door is closed, and prevents outside air from entering the closed cabinet body 1 .

The advantages of the utility model:

1. The cooling fan is installed on the side, which minimizes the sand and dust falling into the gap between the fan blade of the cooling fan and the stator coil, thus preventing the fan blade of the cooling fan from being stuck by the sand and causing the electrical equipment in the closed cabinet 1 to fail. normal operation.

2. The cooling air duct 4 is inlaid on the inside of the closed cabinet 1 in the shape of a funnel with a large upper and a small lower. Two cooling fans are installed on the cooling air duct 4, in order to generate a larger wind pressure when the cooling fan is working. Therefore, in windy weather, sand and soil will not enter the interior of the closed cabinet 1 through the air outlet 6 on the closed cabinet 1 .

3. The air outlet 6 on the airtight cabinet 1 is designed at the lower part of the airtight cabinet 1. The air outlet 6 has a certain slope to prevent sand from accumulating at the air outlet 6 and will not pass through the airtight in windy weather. The air outlet 6 and the heat dissipation air duct 4 on the cabinet 1 enter the interior of the closed cabinet 1 .

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and can increase or decrease unnecessary technical features according to actual needs to meet the needs of different situations.

Claims (10)

1. an oil field pumping unit energy-saving control cabinet ventilation and heat dissipation device, it is characterized in that comprising airtight cabinet body; Be provided with air inlet at the lower right side of airtight cabinet body, the inner side of the airtight cabinet body corresponding to air inlet position is from outside to inside A first filter device and a second filter device are fixedly installed in sequence, the air inlet end of the first filter device is connected with the air inlet of the closed cabinet, and the air outlet end of the first filter device is connected with the air inlet end of the second filter device The air outlet end of the second filter device is communicated with the cavity of the closed cabinet, and the upper and lower cooling air ducts are arranged on the inner side of the left panel of the closed cabinet, and are fixedly installed on the inner side of the upper left panel of the closed cabinet. There is at least one heat dissipation device, and at least one air outlet communicated with the heat dissipation air duct is arranged at the lower part of the left side plate of the closed cabinet. 2 . The ventilation and heat dissipation device of the oil field pumping unit energy-saving control cabinet according to claim 1 , wherein two heat dissipation devices are fixedly installed at intervals along the front and rear directions on the inner side of the left side panel of the closed cabinet. 3 . 3. The ventilation and heat-dissipating device for oil field pumping unit energy-saving control cabinet according to claim 2, characterized in that the heat-dissipating device is a heat-dissipating fan. 4. The ventilation and heat-dissipating device for oil field pumping unit energy-saving control cabinet according to claim 1, 2 or 3, characterized in that the heat-dissipating air duct is a funnel-shaped heat-dissipating trough with a large upper and a lower small. 5. The ventilation and heat dissipation device for oil field pumping unit energy-saving control cabinet according to claim 1, 2 or 3, characterized in that the first filter device is at least one layer of air filter cotton; or/and, the second filter device is an air filter filter. 6. The ventilation and heat dissipation device for oil field pumping unit energy-saving control cabinet according to claim 4, characterized in that the first filter device is at least one layer of air filter cotton; or/and the second filter device is an air filter. 7. The ventilation and heat-dissipating device for oil field pumping unit energy-saving control cabinet according to claim 1 or 2 or 3 or 6, characterized in that the air outlet is an oblique air outlet that is high inside and low outside, and the air outlet is on the left side of the airtight cabinet. The angle between the plates is 5 degrees to 10 degrees. 8. The ventilation and heat dissipation device for oil field pumping unit energy-saving control cabinet according to claim 5, characterized in that the air outlet is an oblique air outlet that is high inside and low outside, and the angle between the air outlet and the left side plate of the airtight cabinet is 5 degrees to 10 degrees. 9. The ventilation and heat dissipation device for oil field pumping unit energy-saving control cabinet according to claim 1 or 2 or 3 or 6, characterized in that the front side or the rear side of the closed cabinet body is provided with a cabinet door, which is fixed on the outside of the middle part of the cabinet door A handle is installed, and a sealing ring or a rubber sealing strip is fixedly installed on the inner and outer periphery of the cabinet door. 10. The ventilation and heat dissipation device for oil field pumping unit energy-saving control cabinet according to claim 8, characterized in that the front side or the rear side of the closed cabinet is provided with a cabinet door, and a handle is fixedly installed on the outside of the middle part of the cabinet door, and the cabinet A sealing ring or a rubber sealing strip is fixedly installed on the inner and outer periphery of the door.

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