CN112423571A - Driller moving box type driver control box for variable frequency power supply - Google Patents

Driller moving box type driver control box for variable frequency power supply Download PDF

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CN112423571A
CN112423571A CN202011474349.0A CN202011474349A CN112423571A CN 112423571 A CN112423571 A CN 112423571A CN 202011474349 A CN202011474349 A CN 202011474349A CN 112423571 A CN112423571 A CN 112423571A
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water
box body
condenser
power supply
box
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CN112423571B (en
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李凯
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China Taihang Beijing Electronic Technology Co ltd
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China Taihang Beijing Electronic Technology Co ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/202—Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20209—Thermal management, e.g. fan control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20318—Condensers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20381—Thermal management, e.g. evaporation control

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention provides a driver control box for a movable box type variable frequency power supply of a drilling machine, which comprises a box body and a travelling mechanism, wherein the box body is arranged at the upper end of the travelling mechanism, a four-quadrant frequency converter and a power supply controller are arranged in the box body, and the four-quadrant frequency converter is electrically connected with the power supply controller; a fan and a heat pipe heat exchanger are arranged at the upper end in the box body, a condenser and a water pump are arranged at the top of the box body, and an air duct is arranged on the side surface in the box body; the outlet of the heat pipe heat exchanger is connected with the inlet of the secondary side of the condenser through a refrigerant pipeline, the inlet of the heat pipe heat exchanger is connected with the outlet of the secondary side of the condenser through a refrigerant pipeline, and the heat pipe heat exchanger, the condenser and the refrigerant pipeline are filled with refrigerants; a water inlet at the primary side of the condenser is connected with a water supply port of a water pump through a water pipe, and a suction port of the water pump is connected with a cold water source through a water pipe; the heat pipe heat exchanger is arranged at an inlet of an air duct for conveying air at the four-quadrant frequency converter and the power supply controller into the air duct by a fan. The service life of the equipment is long.

Description

Driller moving box type driver control box for variable frequency power supply
Technical Field
The invention relates to the technical field of power equipment, in particular to a driver control box for a movable box type variable frequency power supply of a drilling machine.
Background
In engineering projects such as prospecting, mining or tunnels, a drilling machine is a common engineering machine, the conventional drilling machine generally adopts electric power as energy, the rotating speed of the drilling machine is often changed according to needs in use, and the drilling machine needs to be moved according to engineering needs, so that the drilling machine needs to be provided with a movable control box with a variable-frequency power supply.
Because such engineering projects are mostly in outdoor open places, the equipment is greatly influenced by the environment, especially for a driver control box of the electrical equipment, the driver control box can generate heat when in use and needs to dissipate heat to the outside, and therefore heat dissipation holes are often arranged on the box body; however, if the external environment temperature is high, heat dissipation is difficult, overheating is easy to cause faults or accidents, and if the external environment temperature is too low, the welding effectiveness of electronic devices in the box can be affected, so that damage is caused; because the dust content of the air in the external engineering environment is larger, the dust accumulation in the box body caused by the air is more, and the fault is influenced; in rainy and snowy weather, the risk of potential safety hazard caused by water inflow also exists. The influence of environment and climate causes many potential safety hazards, the fault rate is increased, the maintenance cost is increased, and the service life of equipment is short.
Disclosure of Invention
In order to solve the technical problem, the invention provides a driver control box for a movable box type variable frequency power supply of a drilling machine, which comprises a box body and a travelling mechanism, wherein the box body is arranged at the upper end of the travelling mechanism, a four-quadrant frequency converter and a power supply controller are arranged in the box body, and the four-quadrant frequency converter is electrically connected with the power supply controller;
a fan and a heat pipe heat exchanger are arranged at the upper end in the box body, a condenser and a water pump are arranged at the top of the box body, and an air duct is arranged on the side surface in the box body; the outlet of the heat pipe heat exchanger is connected with the inlet of the secondary side of the condenser through a refrigerant pipeline, the inlet of the heat pipe heat exchanger is connected with the outlet of the secondary side of the condenser through a refrigerant pipeline, and the heat pipe heat exchanger, the condenser and the refrigerant pipeline are filled with refrigerants; a water inlet at the primary side of the condenser is connected with a water supply port of a water pump through a water pipe, and a suction port of the water pump is connected with a cold water source through a water pipe; the heat pipe heat exchanger is arranged at an inlet of an air duct for conveying air at the four-quadrant frequency converter and the power supply controller into the air duct by a fan.
Optionally, the traveling mechanism includes a chassis and two sets of crawler wheels, and the two sets of crawler wheels are respectively disposed on two sides of the chassis; the box body is fixedly connected with the chassis.
Optionally, the chassis is provided with a towing hook or a towing ring for connecting with a vehicle by a towing rope for moving under the towing of the vehicle.
Optionally, the number of the heat pipe heat exchangers and the number of the air ducts are multiple, at least one heat pipe heat exchanger is arranged at an inlet of each air duct, and the air ducts are respectively arranged on different sides inside the box body.
Optionally, the power supply controller includes an operation module, a data acquisition module and an execution module;
the temperature measuring device comprises a data acquisition module, a condenser, a heat pipe exchanger, a water pump, a water inlet, a water outlet, a water inlet, a water outlet, a;
the operation module is respectively connected with the data acquisition module and the execution module, receives data acquired by the data acquisition device, determines a control mode through calculation, generates a control instruction and sends the control instruction to the execution module;
and the execution module is respectively connected with the fan and the water pump and controls the fan and the water pump to operate according to the control instruction.
Optionally, a refrigerant pipeline connecting an inlet of the heat pipe exchanger and an outlet of the secondary side of the condenser is provided with a refrigerant supplement pipeline, the refrigerant supplement pipeline is provided with a liquid storage tank, a liquid supplement pump and an electromagnetic valve, an outlet of the liquid storage tank is connected with a tail end of the refrigerant supplement pipeline, the electromagnetic valve is arranged at a position close to the refrigerant pipeline connecting the inlet of the heat pipe exchanger and the outlet of the secondary side of the condenser, the liquid supplement pump is positioned between the liquid storage tank and the electromagnetic valve, a suction inlet of the liquid supplement pump is connected with the outlet of the liquid storage tank, and a liquid supply port of the liquid supplement pump is connected; and the fluid infusion pump and the electromagnetic valve are connected with the execution module.
Optionally, the condenser comprises an inner copper pipe, an outer copper pipe and fins, the inner copper pipe and the outer copper pipe are isolated from each other, the inner copper pipe is a primary side of the condenser and is connected with the water pump through a water pipe, and a cavity with an annular cross section between the outer copper pipe and the inner copper pipe is a secondary side of the condenser and is connected with the heat pipe exchanger through a refrigerant pipe; the fins are arranged on the outer side of the outer-layer copper pipe, one side of the condenser is provided with a fan, and the fan is used for allowing air to pass through gaps among the fins of the condenser for convection; the fan is connected with the execution module.
Optionally, a display screen is installed on the outer side of the box body, the display screen is connected with the power supply controller, and the display screen is used for displaying data collected by the data collector and calculation result data of the operation module.
Optionally, the operation module calculates the circulating air volume inside the box body according to the following formula:
Figure BDA0002834613530000031
in the above formula, QWind powerThe circulating air volume inside the box body is shown; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; c represents the specific heat of air in the tank; ρ represents the air density in the tank;
and according to the corresponding relation between the air volume and the rotating speed in the characteristic curve of the fan, generating a control instruction of the rotating speed of the fan by taking the calculated circulating air volume as the air volume of the fan and transmitting the control instruction to an execution module, wherein the execution module adjusts the rotating speed of the fan according to the control instruction.
Optionally, the operation module calculates the water supply amount of the water pump by the following formula:
Figure BDA0002834613530000032
in the above formula, QWind powerIndicating the water supply amount of the water pump; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; cWater (W)Represents the specific heat of water; rhoWater (W)Represents the density of water; t is tReturn waterThe designed return water temperature is shown and is preset; t is tWater supplyThe water supply temperature is measured by a water supply temperature sensor;
and according to the corresponding relation between the circulating water amount in the characteristic curve of the water pump and the rotating speed of the water pump, the calculated water supply amount is used as the circulating water amount of the water pump to generate a control instruction of the rotating speed of the water pump and is transmitted to an execution module, and the execution module adjusts the rotating speed of the water pump according to the control instruction.
The invention relates to a driver control box for a movable box type variable frequency power supply of a drilling machine, which adopts a closed box body, wherein a fan and an air duct are arranged in the box body to form air internal circulation heat dissipation, a condenser and a water pump are arranged at the top of the box body, a water source for cooling is connected with the water pump through the primary side of the condenser, a heat pipe heat exchanger is arranged at an air duct inlet at the upper end in the box body, the heat pipe heat exchanger and the secondary side of the condenser are connected through a refrigerant pipeline and filled with refrigerant to form heat pipe type refrigerant circulation with heat exchange between the inside; the closed box body realizes the relative isolation of the interior of the box body and the external environment, reduces the adverse environmental influence on each electric power and electronic devices in the box body, can effectively ensure the continuous operation of equipment, improves the productivity and the service life of the equipment, and reduces the safety risk and the maintenance cost.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a driver control box for a mobile box type variable frequency power supply of a drilling machine in an embodiment of the invention;
FIG. 2 is a schematic diagram of the connection of a refrigerant supplementary pipeline adopted in the embodiment of the driver control box for the drilling machine mobile box type variable frequency power supply of the invention;
fig. 3 is a schematic structural view of a condenser adopted in the embodiment of the driver control box for the drilling machine mobile box type variable frequency power supply.
In the figure: the device comprises a box body 1, a traveling mechanism 2, a four-quadrant frequency converter 3, a power supply controller 4, a fan 5, a heat pipe heat exchanger 6, a condenser 7, a water pump 8, an air duct 9, a chassis 10, two groups of crawler wheels 11, a liquid storage tank 12, a liquid supplementing pump 13, an electromagnetic valve 14, a fan 15, an outer copper pipe 16, an inner copper pipe 17 and fins 18.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the invention provides a driver control box for a mobile box type variable frequency power supply of a drilling machine, which comprises a box body 1 and a traveling mechanism 2, wherein the box body 1 is installed at the upper end of the traveling mechanism 2, a four-quadrant frequency converter 3 and a power supply controller 4 are arranged in the box body 1, and the four-quadrant frequency converter 3 is electrically connected with the power supply controller 4;
a fan 5 and a heat pipe heat exchanger 6 are arranged at the upper end inside the box body 1, a condenser 7 and a water pump 8 are arranged at the top of the box body 1, and an air duct 9 is arranged on the side surface inside the box body 1; the outlet of the heat pipe heat exchanger 6 is connected with the inlet of the secondary side of the condenser 7 through a refrigerant pipeline, the inlet of the heat pipe heat exchanger 6 is connected with the outlet of the secondary side of the condenser 7 through a refrigerant pipeline, and the heat pipe heat exchanger 6, the condenser 7 and the refrigerant pipeline are filled with refrigerants; a water inlet at the primary side of the condenser 7 is connected with a water supply port of a water pump 8 through a water pipe, and a suction port of the water pump 8 is connected with a cold water source through a water pipe; the heat pipe heat exchanger 6 is arranged at an inlet of an air duct 9 for sending air at the four-quadrant frequency converter 3 and the power controller 4 into the fan 5.
The working principle of the technical scheme is as follows: the closed type box body is adopted, a fan and a wind channel are arranged in the box body to form air internal circulation heat dissipation, a condenser and a water pump are arranged at the top of the box body, a primary side of the condenser is connected with the water pump to form a cooling water source for cooling, the cooling water source can be a natural surface water source of nearby water areas such as ponds, lakes or rivers and the like, can also be an underground water source formed by well digging, can also be chilled water provided by an air-conditioning water chilling unit and the like, the arrangement is carried out according to project site conditions, a mode that various water sources are used by time intervals can be adopted, and the; a heat pipe heat exchanger is arranged at an air duct inlet at the upper end in the box body, the heat pipe heat exchanger is connected with the secondary side of the condenser by adopting a refrigerant pipeline and is filled with refrigerant to form heat pipe type refrigerant circulation with heat exchanged between the inside and the outside of the box body, so that the box body can realize heat dissipation under the closed condition; according to the working temperature of each electric power and electronic component in the box body, the gasification temperature of the refrigerant is designed and determined, and the closed system pressure of the heat pipe exchanger and the secondary side refrigerant pipeline of the condenser is obtained according to the physical characteristics of the refrigerant and the gasification temperature; during the use, the refrigerant is become gaseous by liquid gasification at heat pipe exchanger and makes pressure rise, and drive gaseous refrigerant flows to the condenser along the refrigerant pipeline, is cooled off in the condenser and is condensed into liquid by gas again, because the condenser position is higher than heat pipe exchanger, the liquid refrigerant that condenses into flows back to heat pipe exchanger under the action of gravity, need not set up in addition that power equipment can form the refrigerant circulation, and energy-conservation nature is good.
The beneficial effects of the above technical scheme are: the closed box body realizes the relative isolation between the interior of the box body and the external environment, reduces the adverse environmental influence on each electric power and electronic device in the box body, can effectively ensure the continuous operation of equipment, improves the productivity and the service life of the equipment, and reduces the safety risk and the maintenance cost; the side of wind channel setting in the box lets inside each electric power and electron device and outside form certain heat transfer and keep apart, no matter outside ambient temperature is high or low, can not cause harmful effects to inside each electric power and electron device.
In one embodiment, the traveling mechanism 2 includes a chassis 10 and two sets of track wheels 11, wherein the two sets of track wheels 11 are respectively disposed on two sides of the chassis 10; the box body 1 is fixedly connected with a chassis 10; the chassis 10 is provided with a towing hook or a towing loop for connecting with a vehicle with a towing rope to move under the towing of the vehicle.
The working principle and the beneficial effects of the technical scheme are as follows: the crawler wheels are arranged on the travelling mechanism, so that the equipment can adapt to relatively complex ground conditions when moving, and the chassis can be further provided with an anti-vibration buffer mechanism, such as a spring, so as to keep the balance of the equipment during moving or working and prevent the connection of electrical components from being easily loosened due to the transmission of surface vibration during the working of the drilling machine; the chassis is provided with a traction hook or a traction ring, and can be connected with a vehicle by adopting a traction rope and move under the traction of the vehicle.
In one embodiment, the number of the heat pipe heat exchangers 6 and the number of the air ducts 9 are multiple, at least one heat pipe heat exchanger 6 is arranged at the inlet of each air duct 9, and the air ducts 9 are respectively arranged on different sides of the interior of the box body 1; the inner side of the shell of the box body 1 is provided with a heat preservation layer, and the box body can be made of metal materials.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the plurality of heat pipe heat exchangers and the air channels are arranged on different sides in the box body, so that each internal electric power and electronic device are well separated from the outside in a heat transfer mode, and no adverse effect is caused on each internal electric power and electronic device no matter the external environment temperature is high or low; the heat insulation layer is arranged on the inner side of the shell of the box body, so that the influence of the change of the external environment temperature can be further isolated, and the heat load in the box body cannot be increased when the external environment temperature is higher; the internal articles can not be frozen when the external environment temperature is lower.
In one embodiment, the power controller 4 includes an operation module, a data acquisition module and an execution module;
the temperature measuring device comprises a data acquisition module, a condenser, a heat pipe exchanger, a water pump, a water inlet, a water outlet, a water inlet, a water outlet, a;
the operation module is respectively connected with the data acquisition module and the execution module, receives data acquired by the data acquisition device, determines a control mode through calculation, generates a control instruction and sends the control instruction to the execution module;
the execution module is respectively connected with the fan 5 and the water pump 8 and controls the fan 5 and the water pump 8 to operate according to the control instruction.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme sets up operation module, data acquisition module and execution module at electrical source controller, and data acquisition module takes electric power and heat dissipation relevant data for control fan and water pump heat dissipation equipment, the heat dissipation control and the integrated body of power control of this scheme all adopt electrical source controller to realize, can reduce equipment cost, still strengthened the relation of electric power output with the heat dissipation demand, make control more harmonious, accurate and energy-conserving.
In one embodiment, as shown in fig. 2, a refrigerant pipeline connecting an inlet of the heat pipe exchanger 6 with an outlet of the secondary side of the condenser 7 is provided with a refrigerant supplement pipeline, the refrigerant supplement pipeline is provided with a liquid storage tank 12, a liquid supplement pump 13 and an electromagnetic valve 14, an outlet of the liquid storage tank 12 is connected with a tail end of the refrigerant supplement pipeline, the electromagnetic valve 14 is arranged at a position close to the refrigerant pipeline connecting the inlet of the heat pipe exchanger 6 with the outlet of the secondary side of the condenser 7, the liquid supplement pump 13 is positioned between the liquid storage tank 12 and the electromagnetic valve 14, a suction inlet of the liquid supplement pump 13 is connected with the outlet of the liquid storage tank 12, and a liquid supply port of the liquid supplement pump 13; the fluid infusion pump 13 and the electromagnetic valve 14 are connected with the execution module.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the refrigerant supplementing pipeline is arranged for the refrigerant circulating system, when the pressure sensor detects the pressure reduction of the refrigerant, the electromagnetic valve is opened, the liquid supplementing pump is started, the refrigerant is pumped out from the liquid storage tank by the liquid supplementing pump and conveyed into the refrigerant circulating system, the refrigerant loss of the refrigerant circulating system is supplemented, the heat dissipation requirement of the box body is guaranteed, and the heat dissipation efficiency is prevented from being influenced due to the shortage of the refrigerant.
In one embodiment, as shown in fig. 3, the condenser 7 includes an inner layer copper pipe 17, an outer layer copper pipe 16 and fins 18, the inner layer copper pipe 17 and the outer layer copper pipe 16 are isolated from each other, the inner layer copper pipe 17 is a primary side of the condenser 7 and is connected with the water pump 8 through a water pipe, a cavity with an annular cross section between the outer layer copper pipe 16 and the inner layer copper pipe 17 is a secondary side of the condenser 7 and is connected with the heat pipe exchanger 6 through a refrigerant pipe; the fins 18 are arranged on the outer side of the outer layer copper pipe 16, one side of the condenser 7 is provided with a fan 15, and the fan 15 is used for allowing air to pass through gaps among the fins 18 of the condenser 7 for convection; the fan 15 is connected to the execution module.
The working principle and the beneficial effects of the technical scheme are as follows: the condenser adopts a double-layer tube structure of an inner layer copper tube and an outer layer copper tube, and fins are arranged on the outer side of the outer layer copper tube; the inner copper pipe is used as a primary side and is connected with a cold water source by a water pump, and the annular cavity of the outer copper pipe and the inner copper pipe is used as a secondary side and is connected with a heat pipe heat exchanger; a fan is arranged on one side of the condenser; when the project has available natural water source, the heat can be dissipated by connecting the water source on the primary side; if no natural water source is available, but the temperature of the outside climate is low, the outside air can be cooled by the fan in the outside copper pipe where the refrigerant flows, so that the natural cold source is fully utilized to realize heat dissipation, the environmental adaptability of the equipment is improved, and the energy is further saved.
In one embodiment, a display screen is installed on the outer side of the box body, the display screen is connected with the power supply controller, and the display screen is used for displaying data collected by the data collector and data calculated by the operation module.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the display screen is arranged and used for displaying data collected by the data collector and calculation result data of the operation module, visualization of operation data is achieved, a user or a maintainer can know the operation state of the equipment visually, and the condition of the equipment is mastered fully.
In one embodiment, the operation module calculates the circulating air volume inside the box body by the following formula:
Figure BDA0002834613530000081
in the above formula, QWind powerThe circulating air volume inside the box body is shown; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; c represents the specific heat of air in the tank; ρ represents the air density in the tank;
and according to the corresponding relation between the air volume and the rotating speed in the characteristic curve of the fan, generating a control instruction of the rotating speed of the fan by taking the calculated circulating air volume as the air volume of the fan and transmitting the control instruction to an execution module, wherein the execution module adjusts the rotating speed of the fan according to the control instruction.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the circulating air quantity in the box body is calculated by the operation module according to the formula, the accurate control of the rotating speed of the fan is realized by combining with the characteristic curve of the fan, continuous adjustment and fluctuation of the air quantity are avoided, the adjustment time is saved, the repetition of the adjustment process is avoided, the change times of the fan can be reduced, and the service life of the fan is prolonged; the energy consumption and the heat dissipation of the control system are reduced; the calculation formula not only considers the heat load generated by the self heating of the equipment, but also considers the change condition of the heat load in the box body caused by the change of the environmental temperature, so that the heat load measurement in the calculation is more comprehensive and accurate, and the calculation result and the control are more accurate.
In one embodiment, the operation module calculates the water supply amount of the water pump by the following formula:
Figure BDA0002834613530000091
in the above formula, QWind powerIndicating the water supply amount of the water pump; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; cWater (W)Represents the specific heat of water; rhoWater (W)Represents the density of water; t is tReturn waterThe designed return water temperature is shown and is preset; t is tWater supplyThe water supply temperature is measured by a water supply temperature sensor;
and according to the corresponding relation between the circulating water amount in the characteristic curve of the water pump and the rotating speed of the water pump, the calculated water supply amount is used as the circulating water amount of the water pump to generate a control instruction of the rotating speed of the water pump and is transmitted to an execution module, and the execution module adjusts the rotating speed of the water pump according to the control instruction.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the required water supply amount of the water pump is calculated by the operation module by adopting the formula, the accurate control of the rotating speed of the water pump is realized by combining with the characteristic curve of the water pump, the continuous adjustment and the fluctuation of the water supply amount are avoided, the adjustment time is saved, the repetition of the adjustment process is avoided, the change times of the water pump can be reduced, and the service life of the water pump is prolonged; the energy consumption of the control system is reduced; the calculation formula not only considers the heat load generated by the self heating of the equipment, but also considers the change condition of the heat load in the box body caused by the change of the environmental temperature, so that the heat load measurement in the calculation is more comprehensive and accurate, and the calculation result and the control are more accurate.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A driver control box for a movable box type variable frequency power supply of a drilling machine is characterized by comprising a box body and a travelling mechanism, wherein the box body is arranged at the upper end of the travelling mechanism, a four-quadrant frequency converter and a power supply controller are arranged in the box body, and the four-quadrant frequency converter is electrically connected with the power supply controller;
a fan and a heat pipe heat exchanger are arranged at the upper end in the box body, a condenser and a water pump are arranged at the top of the box body, and an air duct is arranged on the side surface in the box body; the outlet of the heat pipe heat exchanger is connected with the inlet of the secondary side of the condenser through a refrigerant pipeline, the inlet of the heat pipe heat exchanger is connected with the outlet of the secondary side of the condenser through a refrigerant pipeline, and the heat pipe heat exchanger, the condenser and the refrigerant pipeline are filled with refrigerants; a water inlet at the primary side of the condenser is connected with a water supply port of a water pump through a water pipe, and a suction port of the water pump is connected with a cold water source through a water pipe; the heat pipe heat exchanger is arranged at an inlet of an air duct for conveying air at the four-quadrant frequency converter and the power supply controller into the air duct by a fan.
2. The driver control box for the drilling machine moving box type variable frequency power supply according to claim 1, wherein the travelling mechanism comprises a chassis and two groups of crawler wheels, and the two groups of crawler wheels are respectively arranged on two sides of the chassis; the box body is fixedly connected with the chassis.
3. The driver control box for the drilling machine moving box type variable frequency power supply according to claim 2, wherein the chassis is provided with a traction hook or a traction ring for connecting with a vehicle through a traction rope so as to move under the traction of the vehicle.
4. The driver control box for the drilling machine movable box type variable frequency power supply according to claim 1, wherein the number of the heat pipe heat exchangers and the air ducts is multiple, at least one heat pipe heat exchanger is arranged at an inlet of each air duct, and the air ducts are respectively arranged on different sides of the interior of the box body.
5. The driver control box for the drilling machine movable box type variable frequency power supply according to claim 1, wherein the power supply controller comprises an operation module, a data acquisition module and an execution module;
the temperature measuring device comprises a data acquisition module, a condenser, a heat pipe exchanger, a water pump, a water inlet, a water outlet, a water inlet, a water outlet, a;
the operation module is respectively connected with the data acquisition module and the execution module, receives data acquired by the data acquisition device, determines a control mode through calculation, generates a control instruction and sends the control instruction to the execution module;
and the execution module is respectively connected with the fan and the water pump and controls the fan and the water pump to operate according to the control instruction.
6. The driver control box for the drilling machine mobile box type variable frequency power supply according to claim 5, wherein a refrigerant pipeline connecting an inlet of the heat pipe heat exchanger with an outlet of the secondary side of the condenser is provided with a refrigerant supplement pipeline, the refrigerant supplement pipeline is provided with a liquid storage tank, a liquid supplement pump and an electromagnetic valve, an outlet of the liquid storage tank is connected with the tail end of the refrigerant supplement pipeline, the electromagnetic valve is arranged at a position close to the refrigerant pipeline connecting the inlet of the heat pipe heat exchanger with the outlet of the secondary side of the condenser, the liquid supplement pump is positioned between the liquid storage tank and the electromagnetic valve, a suction inlet of the liquid supplement pump is connected with the outlet of the liquid storage tank, and a liquid supply port of the liquid supplement; and the fluid infusion pump and the electromagnetic valve are connected with the execution module.
7. The driver control box for the drilling machine movable box type variable frequency power supply according to claim 5, wherein the condenser comprises an inner layer copper pipe, an outer layer copper pipe and fins, the inner layer copper pipe and the outer layer copper pipe are isolated from each other, the inner layer copper pipe is a primary side of the condenser and is connected with a water pump through a water pipe, a cavity with an annular section between the outer layer copper pipe and the inner layer copper pipe is a secondary side of the condenser and is connected with a heat pipe heat exchanger through a refrigerant pipeline; the fins are arranged on the outer side of the outer-layer copper pipe, one side of the condenser is provided with a fan, and the fan is used for allowing air to pass through gaps among the fins of the condenser for convection; the fan is connected with the execution module.
8. The driver control box for the drilling machine movable box type variable frequency power supply according to claim 5, wherein a display screen is installed on the outer side of the box body, the display screen is connected with a power supply controller, and the display screen is used for displaying data collected by a data collector and data calculated by an operation module.
9. The driver control box for the drilling machine movable box type variable frequency power supply according to claim 5, wherein the operation module calculates the circulating air volume inside the box body through the following formula:
Figure FDA0002834613520000021
in the above formula, QWind powerThe circulating air volume inside the box body is shown; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; c represents the specific heat of air in the tank; ρ represents the air density in the tank;
and according to the corresponding relation between the air volume and the rotating speed in the characteristic curve of the fan, generating a control instruction of the rotating speed of the fan by taking the calculated circulating air volume as the air volume of the fan and transmitting the control instruction to an execution module, wherein the execution module adjusts the rotating speed of the fan according to the control instruction.
10. The driver control box for the drilling machine mobile box type variable frequency power supply according to claim 5, wherein the operation module calculates the water supply amount of the water pump through the following formula:
Figure FDA0002834613520000031
in the above formula, QWind powerIndicating the water supply amount of the water pump; ε represents the power distribution efficiency; qElectric powerRepresenting the output electric quantity; k represents the heat transfer coefficient of the tank; s represents the surface area of the box body; t is t3Represents the ambient temperature; t is t1Represents the in-box temperature; t is t2Representing the air supply temperature in the air duct; cWater (W)Represents the specific heat of water; rhoWater (W)Represents the density of water; t is tReturn waterThe designed return water temperature is shown and is preset; t is tWater supplyThe water supply temperature is measured by a water supply temperature sensor;
and according to the corresponding relation between the circulating water amount in the characteristic curve of the water pump and the rotating speed of the water pump, the calculated water supply amount is used as the circulating water amount of the water pump to generate a control instruction of the rotating speed of the water pump and is transmitted to an execution module, and the execution module adjusts the rotating speed of the water pump according to the control instruction.
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