KR20080103884A - Device for moving liquid and method thereof - Google Patents

Abstract

The present invention is a fluid transfer device, a fluid heater, a fluid heating transfer device and a pressure heating method, the rotor is installed between the inlet and the outlet of the fluid flowing through the stator winding installed in the outside of the case by rotating the rotor field, While the fluid is pressurized and moved by the rotation of the electrons, the heat generating means installed in the case generates heat to heat the fluid. According to the present invention, when the fluid heating pump is used, the fluid conveying device and the heating device are integrated so that it is compact and small in volume, and there is no need to seal the pump shaft. Since the heating element is in the fluid, the efficiency of the heating element is good, temperature control is easy and precise, and energy efficiency is good.

Description

Fluid transfer device and method

1 is a cross-sectional view showing a conventional pump.

2 is a cross-sectional view showing a pump which is an embodiment of the present invention.

3 is a view showing an example of the impeller of the present invention.

4 is a view showing an example of the heating element of the present invention.

The present invention relates to a fluid device, a fluid transport method, and a method of using the same and an application device.

The fluid herein refers to an object that does not take a specific form, such as liquid and gas, but changes shape freely depending on the container. The fluid transfer device is a device that transfers a fluid by pressurizing a fluid in combination with an electric motor.

A blower or compressor is a device that pressurizes and delivers air, which is a fluid.

In addition, heating a large amount of liquid fluid is generally referred to as a boiler, and heating a small scale of water with electricity or gas is called a hot water heater or an instant heater. The heating and conveying of an air fluid is commercialized as a dryer, and a fan or a fan is also apparatuses for conveying a fluid.

There are numerous devices for transferring fluids and new products are being developed.

Energy is required to transfer fluids, which are usually converted to mechanical energy. Thus, an electric motor for converting electrical energy into mechanical energy and a pump or fan for operating a mechanism such as a propeller, an impeller, a gear, and the like that transfer fluid to the received mechanical energy are combined together.

There are various types of electric motors, such as DC motors, AC motors, induction motors, step motors, and the like, and pumps combined with such power sources also include centrifugal pumps, gear pumps, cylinder pumps, propeller pumps, and the like.

As a mechanism for heating a fluid, electricity or fuel is used, and there are countless kinds of cooking appliances, boilers, various furnaces and heat exchangers, laboratory heaters, and heating apparatuses in production sites.

There are many kinds of measuring instruments used to measure the flow rate. There are also applications where it is necessary to electrically isolate the pump and motor parts.

As a conventional pump for circulating hot water, there is a practical publication No. 20-1989-0023127 entitled "Structure of Canned Type Hot Water Circulation Pump" published December 2, 1989. This hot water circulation pump, as shown in FIG. 1, forms a fluid passage 4a in the rotating shaft 4 which rotates according to the action of the rotor 2 and the stator 3 in the motor frame 1. The mouth ring 5 and the impeller 6 are fixedly installed at both ends of the rotating shaft 4, and the inlet 7 is provided at both sides of the motor frame 1 at the mouth ring 5 side. The side part was a structure comprised by connecting and connecting the discharge port 8.

Patent No. 10-0695628 "Axial blower of the impeller outer ring direct drive type" is equipped with a blade in the hub formed in the inner side by rotating the outer ring of the impeller as a rotating body to suck the air, the air flow in the axial direction The axial flow blower of the impeller outer ring direct drive method was released on March 19, 2007 to maximize the suction efficiency.

The technology disclosed herein is a hollow impeller having a blade formed on its inner circumferential surface to suck and blow air during rotation, and a motor unit having a rotor and a stator having the impeller as a rotating shaft so as to directly drive the impeller; It is made of a housing that protects the motor unit from the outside and forms the appearance of the device. Therefore, due to the direct driving of the impeller, a large amount of suction is possible, and the suctioned air is blown as it is without changing the direction, thereby maximizing the efficiency of suction and discharge. In addition, there is no motor, motor support shaft, fan, etc. that obstruct the flow of air on the suction and blower paths, so that it is possible to solve structural friction problems during suction and blower. Due to the more accelerated air flow can maximize the efficiency of suction and blowing, it is possible to significantly reduce the noise. In particular, it can extinguish large air volume, so it can be used as a replacement for range hood motor fans and turbo fans, which are areas using centrifugal blowers, as well as axial fans and fans using conventional floppler. It is an excellent invention.

However, the technique used in the above "impeller outer ring direct drive type axial blower" accommodates the stator of the motor, the rotor and the impeller in the case, and it is difficult to separate the fluid from the fluid flowing therein. There is a problem that there must be a means for maintaining the voids, and there is a structural defect that makes electrical insulation impossible if the fluid is an electrical conductor.

It is an object of the present invention to provide a technical idea that can easily combine an electric motor function, a pump function or a fan function, and a fluid heating function, etc. in a simple structure.

The object of the invention can be achieved by the technical idea defined in the claims.

The present invention is a fluid moving device for moving the fluid at the inlet to the outlet, the case for sealing the fluid passage so that the fluid at the inlet can only move to the outlet, and the fluid is installed in the case rotatable and rotated in a certain position to move the fluid It includes a fluid moving means for generating a force to be applied, and a rotating magnetic field supply means attached to the outside of the case, and supplying a rotating magnetic field rather than a mechanical force to rotate the fluid moving means.

The fluid moving means includes a rotational force generating unit for generating the rotational force in the same direction as the rotating magnetic field by receiving the energy of the rotor magnetic field, and pressing means for applying a force to move the fluid to the rotational force of the rotational force generating unit.

The case is made of an insulator, the rotation force generating portion is formed of a magnet or an electrical conductor, and the pressing means may be made of a propeller, an impeller, a screw thread formed therein integrally with the rotation force generating portion, and the like.

The rotating magnetic field supplying means is to generate a rotating magnetic field as a stator winding of a motor, or a device for generating a rotating magnetic field by rotating a magnet outside the case.

The present invention also provides a fluid heater for heating a fluid at an inlet and transporting it to an outlet, comprising: a case for sealing a fluid passage so that the fluid at the inlet can move only to the outlet, and installed at a predetermined position within the case to apply heat to the fluid. And a heat generating means and an electric coil coupled to the outside of the case and supplying energy for heating the fluid to the heat generating means. Here, the case is made of an electrical insulator, the heating means is formed of an electrical conductor, or is formed by combining the electrical conductor and the insulator. The electric coil has an electric circuit configured to supply an alternating magnetic field to the heat generating means. In addition, a temperature sensor for detecting the temperature of the fluid is further provided, and the control means for controlling the energy supplied to the electric coil so that the detected temperature of the temperature sensor is approaching a certain reference temperature.

In addition, the present invention is a fluid heating transfer device, the case for sealing the fluid passage so that the fluid at the inlet can move only to the outlet, and installed in the case to be rotatable at a certain position, when rotating to generate a force to move the fluid A fluid moving means to be coupled to the outside of the case, a rotating magnetic field supply means for supplying a rotating magnetic field instead of a mechanical force to rotate the fluid moving means, and installed at a predetermined position in the case to provide heat to the fluid. The heating unit comprises a heating means, and an electric coil coupled to the outside of the case and supplying energy for fluid heating to the heating means in an alternating magnetic field. The fluid moving means and the heat generating means are made of a chemically safe material for the fluid, or the surface thereof is coated.

According to the method of the present invention, a method of pressurizing and moving a fluid in a case includes rotating a magnetic field outside the case to a rotor installed between an inlet and an outlet of a case in which the fluid flows, and rotating the fluid by rotating the rotor. And pressurized to be moved.

In addition, the method of the present invention is a method for pressurizing and heating the fluid in the case, by applying a rotating magnetic field to the rotor installed between the inlet and the outlet of the flow of the fluid flow, the fluid is pressurized by the rotation of the rotor And heating the fluid by heating the heat generating means installed in the case by the rotor magnetic field or a separate variable magnetic field.

The flow rate detector for measuring the amount of fluid that the fluid at the inlet of the present invention is moved to the outlet, and the case for sealing the fluid passage so that the fluid at the inlet can move only to the outlet, and is installed to be rotatable at a predetermined position in the case, When the fluid movement means for generating a fluid for moving the fluid, and a magnet attached to the fluid movement means, and is coupled to the outside of the case, and comprises a pulse generator for generating a pulse in accordance with the rotation of the magnet.

The present invention also includes a cooking appliance, an industrial appliance, an inspection appliance, a household appliance, an ondol heater, a bed heater, a heating appliance, and the like, which are cooked using the pumps and methods of the present invention.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 to 4.

2 is a schematic view for explaining the technical idea of the present invention.

The present invention is a fluid transfer device is connected to the inlet and outlet of the fluid and the case 11, the inside of the fluid passage, the fluid moving means 15 installed at a predetermined position within the case 11, the case 11 is coupled to the outside Rotating magnetic field supply means (12, 13).

The fluid moving means may generate a rotating magnetic field by rotating the magnet from the outside, but this mechanical method makes noise, and when the rotating magnetic field is generated using the electric coil, there is no noise because the rotating part is convenient. In addition, the rotation speed of the magnetic field is exchanged with a 2-pole 4-pole or the like to facilitate speed control, and it is also convenient to use as a coil for supplying energy to the heat generating means described below.

In the present invention, the rotation energy is supplied into the case by the rotor magnetic field. When three-phase power is applied using the coil 12 as a three-phase winding, a separate winding is no longer needed and a rotating magnetic field is generated. In order to use a single-phase power source, a single-phase motor starting method may be used. The coil 13 additionally installed in addition to the coil 12 may be used for single phase starting or for supplying energy to heating means installed later. Such techniques are already known. The coil 14 serves to generate heat in the heat generating element 16 as a coil for induction heating. However, if necessary, the coil 12 may perform all of these functions.

The fluid moving means 15 includes a rotational force generating unit 21 for generating rotational force by receiving rotational energy, that is, a rotating magnetic field, and pressurizing means 22 for pressurizing the fluid so that the fluid moves the rotational force of the rotational force generating unit. In the example, the two are integrally formed.

3 shows an impeller functioning as the rotational force generating unit 22 and the pressing means 22 installed to be rotatable in the case.

This impeller is installed in the case, and can also be installed by placing a bearing on the inner wall of the case.

In an embodiment of the present invention, the case may be made of plastic pipe. The pipe in which the screw groove 20 was formed inside the case can be used. Of course, it is not necessary to form the screw groove 20 in the part where the impeller is to be installed, and the screw is formed only up to the inlet thereof, and after the impeller is inserted, the other screwed pipe is externally screwed to rotate the impeller in the fixed position. You can install it. When the impeller rotates, the fluid itself may be lubricated. If the fan pressurizes gas such as air, oilless bushings or oilless bearings can be used.

In order to increase the rotational force, the impeller may be increased in length or increased in diameter. In the case of increasing the length of the impeller, a means for reducing friction with the case may be formed. For example, an oilless bushing or a mechanical ball bearing may be installed inside the case facing the rotating force generating portion of the impeller.

Since the heating means does not rotate, the screw can also be coupled by screwing the pipe formed on the outside and tightening the heating means.

It is good to make the rotational force generation part 21 by the electrical conductor and to generate a direct rotation force by a rotating magnetic field. Then a circulating current flows here and a force that rotates together in the same direction as the magnetic field is generated. The pressurizing means 22 has a plurality of inclined wings 22 are radially formed to apply a force to move the fluid in one direction when rotated. As a result of the pressure difference in the fluid, the fluid entering the inlet is pushed toward the outlet. This pressurizing means may be made in the form of a propeller, a bicycle wheel, and a tube formed with screws, which are commonly used. If necessary, the case may be properly bent to direct the discharge pressure of the pump to another direction.

In order to insulate the magnetic field supply means for rotating the fluid moving means from the inside of the case, the material of the case 11 may be an insulator. Do not use materials that block the passage of magnetic forces or severely attenuate them.

 The rotation force generating unit 21 may use a magnet directly or may be formed of an electric conductor. Simply made of an electrical conductor to make a closed circuit is a rotational force is generated. In order to increase the rotational force to be generated, the length of the rotational force generating unit 22 may be increased. The rotational force generating part is made of a material with high wear resistance to increase the lifespan. The rotational force generating part 21 and the pressurizing means 22 are formed integrally with a conductor, and the blades are arranged obliquely with respect to the axis to form a wing and a circle. The current may be circulated through the house part.

According to the present invention as a fluid heater, a heating means (16), such as a mesh, generates heat by passing a fluid in a case, which is a fluid passage, and installs an electric coil outside the case, thereby heating energy, that is, alternating magnetic flux, in the heating means. To supply. It is heated by the induction heating principle. The heat generating means may be formed of an electric conductor or may be formed by combining an electric conductor and an insulator.

Depending on the type of fluid (oil, water, or other liquid) and the nature, the material of the impeller and the heating means is selected. That is, in the case of oil, since the lubricant acts well and insulates well, the impeller is made of metal, and the case is made of synthetic resin. The heating element 16 may be made of copper, iron aluminum, or the like, and may be made of honeycomb. This heating element can be coded with an insulator, for example, ceramics, in terms of durability and safety. In particular, if the fluid is chemically unstable, that is, chemically reacts well with acidic, alkaline, or other metals, the impeller and heating element are coded as a stable material. Coating with ceramic will be able to use it reliably for most fluids.

In the present invention, the fluid heating moving device has an impeller 15, a heating element 16 and an electric coil 12, 23, 14, a temperature sensor 19, and a control means 7 installed inside the case.

A temperature sensor 19 for detecting the temperature of the fluid may be installed in the case to increase the accuracy of the temperature measurement, and may be installed and used outside the case.

The control means 7 which controls the energy supply of the said electric coil is provided so that the detected temperature of the temperature sensor 19 may approach to a certain reference temperature. The temperature control method may be a known method. For precise control, the heat capacity of the heated object is calculated by generating a constant amount of heat before the on-off type and then detecting the temperature rise of the purified fluid. By adjusting the heating energy according to the difference, precise and rapid temperature control can be achieved. By attaching a permanent magnet to a specific location of the rotor and installing a pulse generator that counters the number of revolutions of the permanent magnet outside the case, the flow rate of the fluid can be accurately measured, and more accurate temperature control can be made using this flow information. do.

The method of pressurizing and moving the fluid in the case rotates by applying a magnetic field to the rotor 15 provided between the inlet and the outlet of the case in which the fluid flows, so that the fluid is pressurized and moved by the rotation of the rotor 15. do. It is effective to use an insulator case to keep the fluid and power completely insulated.

Another method of the present invention is a method for pressurizing and heating a fluid in a case, by applying a magnetic field to the rotor installed between the inlet and the outlet of the case in which the fluid flows, and the fluid is pressurized by the rotation of the rotor While moving, it is to heat the fluid by heating the heating element 16 installed in the case by the rotor magnetic field or a separate variable magnetic field.

The present invention is a temperature control method for maintaining a set temperature while circulating a fluid using a pump according to any one of claims 1 to 11.

The present invention also includes a cooking appliance, an industrial appliance, an inspection appliance, a household appliance, an ondol heater, a bed heater, a heating appliance, and the like, which are cooked using the pumps and methods of the present invention.

According to the present invention, when the fluid heating transfer device is used, the fluid transfer device and the heating device are integrated so that the compact, small volume, axial flow pump can be easily made, and the sealing becomes very easy.

Since the heating element is in the fluid, the heating element has good efficiency, and the flow rate and heat capacity can be measured to make temperature control easy and precise, and the energy efficiency is good.

It can be usefully used as a pump for transporting dangerous liquids, can also be used in air-conditioning equipment, and if used as a heat source, such as cooking utensils, such as rice cooker steamer, food is not burned.

Depending on the fluid used, you can make a device that heats up to 100 degrees or more.

Temperature control by electricity makes precise control possible and easy to install safety device of timer.

Claims (12)

A fluid moving device for moving a fluid at an inlet to an outlet, A case sealing the fluid passage so that the fluid at the inlet can only move to the outlet, A fluid moving means installed in the case so as to be rotatable at a predetermined position and generating a force for moving the fluid when rotated; And a rotating magnetic field supply means attached to the outside of the case and supplying a rotating magnetic field instead of a mechanical force to rotate the fluid moving means. The method according to claim 1, The fluid moving means includes a rotational force generating unit for generating the rotational force in the same direction as the rotational magnetic field receives the energy of the rotor magnetic field; And a pressurizing means for applying a force to move the fluid to the rotational force of the rotational force generating unit. The method according to claim 2, The case is made of an insulator, the rotation force generating unit is formed of a magnet or an electrical conductor, the pressing means is a propeller, an impeller, a screw thread formed therein, integrally formed with the rotation force generating unit, and the like, the fluid transfer device . The method according to any one of claims 1 to 3, The rotating magnetic field supply means is to generate a rotating magnetic field as a stator winding of the motor, or a device for generating a rotating magnetic field by rotating a magnet outside the case. A fluid heater for heating the fluid at the inlet to the outlet, A case which seals the fluid passage so that the fluid at the inlet can move only to the outlet; A heating means installed at a predetermined position in the case and applying heat to the fluid; And an electric coil coupled to the outside of the case and supplying energy for heating the fluid to the heat generating means in an alternating magnetic field. The method according to claim 5, The case is made of an electrical insulator, The heat generating means is a fluid heater, characterized in that formed by the electrical conductor, or is formed by combining the electrical conductor and the insulator. The method according to claim 5 or 6, Install an additional temperature sensor to detect the temperature of the fluid, And means for controlling the energy supplied to the electric coil such that the detected temperature of the temperature sensor approaches a certain reference temperature. A fluid heat transfer device, A case sealing the fluid passage so that the fluid at the inlet can only move to the outlet; A fluid moving means installed in the case to be rotatable at a predetermined position and generating a force for moving the fluid when rotated; Rotating magnetic field supply means attached to the outside of the case and supplying a rotating magnetic field instead of a mechanical force to rotate the fluid moving means; A heating means installed at a predetermined position in the case and applying heat to the fluid; And an electric coil coupled to the outside of the case and supplying energy for heating the fluid to the heat generating means in an alternating magnetic field. The method according to claim 8, Fluid heating pump characterized in that the fluid transfer means and the heating means is made of a chemically safe material for the fluid, or the surface is coated A method of pressurizing and moving a fluid in a case, And rotating the rotor by applying a magnetic field to the rotor installed between the inlet and the outlet of the case, through which the fluid flows, and pressurizing the fluid by the rotation of the rotor. A method of pressurizing and heating a fluid in a case, While applying the rotor to the rotor installed between the inlet and outlet of the fluid flowing through the rotor, while the fluid is pressurized by the rotation of the rotor, Fluid pressurized heating method characterized in that for heating the fluid by heating the heating means installed in the case by the magnetic field or a separate variable magnetic field A flow rate detector that measures the amount of fluid that the fluid at the inlet moves to the outlet, A case sealing the fluid passage so that the fluid at the inlet can only move to the outlet, A fluid moving means installed in the case so as to be rotatable at a predetermined position and generating a force for moving the fluid when rotated; A magnet attached to the fluid moving means; And a pulse generator attached to the outside of the case and configured to generate a pulse according to the rotation of the magnet.

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