KR20120048077A - Flow control scroll compressor of oxygen concentrator - Google Patents

Abstract

PURPOSE: A flow control scroll compressor of an oxygen concentrator is provided to improve the airtight seal between fixed and rolling scrolls by pressing the fixed scroll against the rolling scroll using an electromagnet installed in a cooling device. CONSTITUTION: A flow control scroll compressor of an oxygen concentrator comprises a mainframe(3), a motor unit(2), a cooling fan(5), a fixed scroll(10), and a rolling scroll(20). Spiral fixed and rolling wraps(11,21) are formed on corresponding sides of the fixed and rolling scrolls and engaged with each other. The sectional area of the fixed and rolling wraps is extended toward the center so that the travel speed of air increases. An insertion groove is formed lengthwise on the top of the fixed and the rolling wrap. A tip seal(30) is inserted in the insertion groove so that the fixed and rolling wraps respectively contact one sides of the fixed and rolling scrolls. A sealing projection is formed on the horizontal surface of the tip seal and contacts one ends of the fixed and rolling scrolls to secure the airtight seal.

Description

Flow control Scroll compressor of Oxygen concentrator

The present invention relates to a flow regulating scroll compressor for an oxygen generator, and more particularly, the width (W) of the cross-sectional area of the fixed wrap and the swing wrap protruding from the fixed scroll and the swing scroll, respectively, becomes wider toward the center, and the fixed By installing a tip seal on the top surface of the lap and the swivel lap, air introduced from the side of the fixed scroll is rapidly transferred to the center of the fixed scroll and the swivel scroll, and the sealing between the fixed scroll and the swivel scroll is improved and the noise is increased. And power consumption is reduced, thereby increasing the efficiency of the compressor and reducing the environmental pollution, and by improving the sealing between the fixed scroll and the rotating scroll by always pushing the fixed scroll in the direction of the rotating scroll by the electromagnet installed in the cooling device Installation of the device raises the frictional heat and air compression of the fixed and swinging scrolls. The present invention relates to a flow control scroll compressor for an oxygen generator in which the heat of the air is absorbed by the secondary fluid (oil) to prevent breakage from the high temperature transmitted to the compressor, thereby increasing the efficiency of the compressor.

Generally, a compressor is a mechanical device that compresses a gas and increases its pressure. Oxygen generators for generating pure oxygen using such compressors have been developed.

The oxygen generator is a system for generating oxygen after inhaling and compressing air through an air compressor, passing through a moisture removal filter, adsorbing nitrogen through a zeolite bed.

As such, the compressor installed in the conventional oxygen generator or the air purifier has been used as a pneumatic piston type compressor. The pneumatic piston type compressor has a loud noise of about 90㏈ when operating, Since the power consumption is higher than the same discharge flow rate, the risk of electrical signals increases, thereby causing environmental pollution.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems,

The width W of the cross sections of the fixed wrap and the swiveling wrap protruding from the fixed scroll and the pivoting scroll, respectively, becomes wider toward the center portion, and a tip seal is installed on the upper surfaces of the fixed wrap and the pivoting wrap, thereby The air flowing in from the side is quickly transferred to the center of the fixed scroll and the swing scroll, and the sealing between the fixed scroll and the swing scroll is improved, which reduces the noise and power consumption. It is an object to provide a flow regulating scroll compressor for reducing oxygen generators.

In addition, it is another object to provide a flow regulating scroll compressor for the oxygen generator that the fixed scroll is always pushed in the swing scroll direction by the electromagnet installed in the cooling device to improve the sealing between the fixed scroll and the swing scroll.

In addition, by installing a cooling device, the frictional heat of the fixed scroll and the swinging scroll and the heat of the air rising by air compression are absorbed by the secondary fluid (oil) to prevent breakage from the high temperature transmitted to the compressor. It is yet another object to provide a flow regulating scroll compressor for an oxygen generator that increases efficiency.

In order to achieve the above object, the present invention provides a main frame, a motor unit which is formed on the lower side of the main frame and the rotating shaft penetrates, and a cooling fan connected to the rotating shaft penetrating the lower side of the motor unit to be rotated by the operation of the motor unit. After the fixed scroll fixed to the upper side of the main frame, and the fixed scroll and the main frame is connected to the rotating shaft penetrated to the upper side of the motor portion is possible to pivot movement and the suction and compression of air while being engaged with the fixed scroll, A flow rate regulating scroll compressor for an oxygen generator, comprising a rotating scroll for discharging,

On one end surface of the fixed scroll and the swing scroll corresponding to each other, the spiral fixed wrap and the swing wrap is formed to be interlocked with each other so as to transport air to the discharge port formed in the center of the fixed scroll when the swing scroll is turned,

The fixed wrap and the swing wrap is formed such that the width (W) of the cross-sectional area is wider toward the center portion to increase the conveying speed of air, and the insertion groove is formed in the longitudinal direction of the top surface of the fixed wrap and the swing wrap, respectively, The tip seal is inserted into the insertion groove in the longitudinal direction so that the fixed wrap and the swing wrap come into close contact with one end surfaces of the fixed scroll and the swing scroll, respectively.

The tip seal is formed in the form of a "T" in cross section so as not to be separated from the insertion groove of the fixed wrap and the swing wrap, the sealing projection is in close contact with one end surface of the fixed scroll and the swing scroll on the horizontal surface of the tip seal. More formed,

The upper surface of the fixed scroll is provided with a cooling device for reducing the heat of the air rising by the frictional heat and the air compression with the fixed scroll in accordance with the swinging movement of the rotating scroll in the oxygen generator flow control scroll compressor It is about.

As described above, in the flow rate scroll compressor for the oxygen generator of the present invention, the width W of the cross sections of the fixed wrap and the swing wrap protruding from the fixed scroll and the swing scroll respectively becomes wider toward the center portion, and the fixed By installing a tip seal on the top surface of the lap and the swivel lap, air introduced from the side of the fixed scroll is rapidly transferred to the center of the fixed scroll and the swivel scroll, and the sealing between the fixed scroll and the swivel scroll is improved and the noise is increased. And power consumption is reduced, thereby increasing the efficiency of the compressor and there is an effect to reduce the environmental pollution.

In addition, the electromagnet provided in the cooling device always pushes the fixed scroll in the swing scroll direction, thereby improving the sealing between the fixed scroll and the swing scroll.

In addition, by installing a cooling device, the frictional heat of the fixed scroll and the swinging scroll and the heat of the air rising by air compression are absorbed by the secondary fluid (oil) to prevent breakage from the high temperature transmitted to the compressor. The efficiency is increased.

1 is a cross-sectional view showing a scroll compressor according to an embodiment of the present invention,
FIG. 2 is an enlarged view of portion A of FIG. 1;
3 is a schematic diagram showing a fixed scroll or a rotating scroll according to an embodiment of the present invention,
4 is a horizontal cross-sectional view showing a cooling apparatus according to an embodiment of the present invention.

The present invention has the following features to achieve the above object.

The present invention is a main frame, a motor unit formed on the lower side of the main frame through which the rotating shaft penetrates, a cooling fan connected to the rotating shaft penetrated to the lower side of the motor unit and rotated by the operation of the motor unit, and the upper side of the main frame A fixed scroll fixed between the fixed scroll and the main frame and connected to a rotating shaft penetrated to the upper side of the motor unit to allow a pivoting movement, the pivoting scroll being engaged with the fixed scroll to suck and compress air, and then discharge the rotating scroll. In the flow rate regulating scroll compressor for the oxygen generator,

On one end surface of the fixed scroll and the swing scroll corresponding to each other, the spiral fixed wrap and the swing wrap is formed to be interlocked with each other so as to transport air to the discharge port formed in the center of the fixed scroll when the swing scroll is turned,

The fixed wrap and the swing wrap is formed such that the width (W) of the cross-sectional area is wider toward the center portion to increase the conveying speed of air, and the insertion groove is formed in the longitudinal direction of the top surface of the fixed wrap and the swing wrap, respectively, The tip seal is inserted into the insertion groove in the longitudinal direction so that the fixed wrap and the swing wrap come into close contact with one end surfaces of the fixed scroll and the swing scroll, respectively.

The tip seal is formed in the form of a "T" in cross section so as not to be separated from the insertion groove of the fixed wrap and the swing wrap, the sealing projection is in close contact with one end surface of the fixed scroll and the swing scroll on the horizontal surface of the tip seal. More formed,

The upper surface of the fixed scroll is characterized in that the cooling device is installed to reduce the heat of the air rising by the frictional heat and air compression with the fixed scroll in accordance with the swinging movement of the swinging scroll.

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

Before describing the various embodiments of the present invention in detail with reference to the accompanying drawings, it can be seen that the application is not limited to the details of the configuration and arrangement of the components described in the following detailed description or shown in the drawings. will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a cross-sectional view showing a scroll compressor according to an embodiment of the present invention, Figure 2 is an enlarged view showing a portion A of Figure 1, Figure 3 shows a fixed scroll or swing scroll in accordance with an embodiment of the present invention 4 is a horizontal cross-sectional view showing a cooling apparatus according to an embodiment of the present invention.

As shown in Figures 1 to 4, the flow control scroll compressor (1) for the oxygen generator of the present invention is to separate the mixture of gas using a molecular sieve (molecular sieve) without heating or cooling, the gas mixture The present invention relates to a scroll compressor (1) for use in a pressure swing adsorption (PSA) device in which the provision and separation of discharge are carried out through an auto cycling valve, the overall configuration of which is illustrated in FIG. And a motor part formed below the main frame 3 and having a rotating shaft penetrated therein, a cooling fan connected to a rotating shaft penetrating downwardly of the motor part and rotated by operation of the motor unit, and an upper side of the main frame 3. It is provided between the fixed scroll (10) and the fixed scroll (10) and the main frame (3) which is fixed to the rotating shaft penetrated to the upper side of the motor portion to enable the pivoting movement And it rotates in engagement with the fixed scroll 10 is configured to include a rotating scroll 20 for suction and compression of the air, and then discharge.

However, the flow regulating scroll compressor 1 for the oxygen generator of the present invention is different from the conventional scroll compressor 100 in the fixed scroll 10 and the revolving scroll 20, there is an excellent effect in terms of performance and efficiency than the conventional.

As shown in FIG. 1, the fixed scroll 10 is fixed to the upper side of the main frame 3 so that the rotating scroll 20 is provided on the inside thereof, and external air flows into the side of the fixed scroll 10. Inlet 13 is formed, the discharge port 14 to the upper central portion of the fixed scroll 10 to transfer the air introduced in the inside through the inlet 13 to the central portion from the turning side of the turning scroll 20 to the central portion. Is formed.

Here, as shown in FIG. 2, one end surface of the fixed scroll 10, that is, one end surface corresponding to the swing scroll 20, moves air to the center part when the swing scroll 20 is turned. The helical fixed wrap 11 protrudes.

And, the upper surface of the fixed wrap 11, with reference to Figure 2, the insertion groove 12 is formed in the longitudinal direction, the insertion groove 12 is inserted into the tip seal 30 in the longitudinal direction is fixed wrap (11) is in close contact with one end surface of the revolving scroll 20, the tip seal 30 is formed and inserted in the form of a "T" in cross section so as not to be separated from the insertion groove 12 of the fixed wrap (11) . At this time, the tip seal 30 is further formed with a closed projection 31 on the horizontal surface to be in close contact with the one end surface of the revolving scroll 20.

In addition, as shown in FIG. 3, the fixed wrap 11 is formed such that the width (W = W1, W2) of the cross-sectional area becomes wider toward the center portion, so that the air feeding speed increases, because the turning wrap 21 In addition, the width (W = W1, W2) of the cross-sectional area is formed to be wider toward the center portion, so that the swing wrap 21 and the fixed wrap 11 to be engaged between the fixed wrap 11 when the swinging scroll 20 is rotated. The space between them becomes narrower toward the center, increasing the air transport speed. At this time, the tip seal 30 inserted into the insertion groove 12 of the fixing wrap 11 also widens toward the center portion in accordance with the cross-sectional area of the fixing wrap 11.

1 and 2, the electromagnet 15 made of only one pole of the S pole and the N pole is installed on the upper side of the fixed scroll 10, and the fixed scroll 10 is provided. Cooling devices 40 made of the same poles as the electromagnets 15 of the fixed scroll 10 are spaced apart from each other so that the fixed scroll 10 always rotates in the direction of the turning scroll 20 by repulsive force. Push to increase the seal between the fixed scroll 10 and the pivoting scroll 20.

1 and 3, the cooling device 40 is installed on the upper surface of the fixed scroll 10, the frictional heat and the compression unit with the fixed scroll 10 in accordance with the swinging movement of the revolving scroll 20 It serves to reduce the heat of the air rising by the air compression in the (fixed scroll 10 and the swinging scroll 20).

Here, the cooling device 40 is transferred to the oil to reduce the frictional heat generated by the fixed scroll 10 and the revolving scroll 20 and the heat of the compressed air by the operation of the compression unit, the oil is cooled A conveying path 42 is formed to be conveyed inside the device 40. The oil is conveyed through the conveying path 42, so that frictional heat and heat of compressed air are conducted to the oil so that heat is transmitted to the compressor 1. To prevent them.

In addition, the transfer path 42 is formed to be evenly distributed throughout the one end surface of the cooling device 40 in the cooling device 40, and communicates with the transfer path 42 of the cooling device 40. An inlet 43 and an outlet 44 are formed at the outer circumference, and the transfer path 42 is a transfer path which is divided into four equal parts into a disc-shaped cooling device 40 with reference to FIG. 4. The perimeter of the 42 becomes larger from the inlet 43 to the outlet 44. That is, in the drawing, the circumference becomes larger as D1 < D2 < D3 < D4, and as the oil is transferred to the transfer path 42, the heat conduction increases, so that the oil becomes high heat, and thus the circumference is increased to smooth the transfer. It is growing.

In addition, the cooling device 40 is formed through the connector 41 at the same position as the outlet 14 of the fixed scroll 10, the connector (41) is formed on the upper surface of the cooling device 40, the connector ( A flow control valve 50 is installed to open and close 41). At this time, the flow control valve 50 will be described in detail below.

In this way, the transferred oil while conveying the transfer path 42 is transferred to the cooling fan 5 to cool, and in this case, the inlet 43 and the discharge port 44 so that the oil is transferred to the cooling fan (5). Transfer pipe 45 is connected, the cooling fan 5 is connected to the transfer pipe 45 and the oil transferred through the transfer pipe 45 is temporarily stored while being stored for heat exchange by the air volume of the cooling fan (5) The unit 6 is connected and installed, and the oil temporarily stored in the storage unit 6 is cooled by the cooling fan 5, and the cooled oil is cooled again in a natural circulation method by the density difference of the oil. Is to be transferred to the transfer path 42.

2 and 4, the flow control valve 50 is composed of a plurality of plate valves integrally to form a single plate-type valve, wherein the plurality of plate valves in the planar "+" shape Each radially protruding shape, one plate valve thickness is different from each other, that is, the thickness of the ①, ②, ③, ④ plate valve is different by a few mm as shown in Figure 4, the plurality of plate valves are end faces The connector 41 is opened and closed.

At this time, the connector 41 is selectively blocked by plate valves having different thicknesses, and the plate valve is operated when the pressure is greater than or equal to a predetermined pressure, thereby finally adjusting the air discharge flow rate. Therefore, each valve is composed of four and each plate valve is the flow rate can be adjusted according to the thickness of the plate.

In addition, the control shaft 51 penetrates the central portion of the flow regulating valve 50 so as to adjust the flow rate of air transferred to the connector 41 according to the thickness by manipulating the rotational direction of the plurality of valve valves. 51 is installed on the upper surface of the cooling device 40 while passing through the flow control valve (50).

As shown in FIG. 1, the swing scroll 20 is provided between the upper surface of the main frame 3 and the fixed scroll 10, and the rotation shaft of the motor unit 2 is disposed on the lower surface of the swing scroll 20. The connection part 23 is formed so that it may be connected with (4).

Here, as shown in FIG. 2, one end surface of the swing scroll 20, that is, one end surface corresponding to the fixed scroll 10, moves air to the center part when the swing scroll 20 is turned. The spiral turning wrap 21 protrudes.

And, the upper surface of the turning wrap 21 with reference to Figure 2, the insertion groove 22 is formed in the longitudinal direction, the insertion groove 22 is inserted into the tip seal (30) in the longitudinal direction turning wrap 21 is in close contact with one end surface of the fixed scroll 10, the tip seal 30 is formed in the form of a "T" in cross section so as not to be separated from the insertion groove 22 of the turning wrap 21 is inserted. . At this time, the tip seal 30 is further formed with a closing projection 31 on the horizontal surface to be in close contact with the one end surface of the fixed scroll (10).

In addition, as shown in FIG. 3, the turning wrap 21 is formed such that the width (W = W1, W2) of the cross-sectional area becomes wider toward the center, thereby increasing the air feed rate, and the turning wrap 21 is It is provided to be sandwiched between the fixed wrap 11 of the fixed scroll (10). At this time, the tip seal 30 inserted into the insertion groove 22 of the turning wrap 21 also widens toward the center portion in accordance with the cross-sectional area of the turning wrap 21.

1 scroll compressor 2 motor unit
3: main frame 4: rotation axis
5: cooling fan 6: storage
10: fixed scroll 11: fixed wrap
12,22: Insertion groove 13: Inlet
14 outlet 15 electromagnet
20: Turning Scroll 21: Turning Lap
23: connection part 30: tip seal
31: sealing projection 40: cooling device
41: connector 42: transfer path
43: inlet 44: outlet
45: transfer pipe 50: flow control valve

Claims (5)

It is connected to the main frame (3), the motor portion (2) formed on the lower side of the main frame (3) and the rotating shaft (4) penetrates, and the rotating shaft (4) penetrating the lower portion of the motor portion (2) It is provided between the cooling fan 5 rotated by the operation of the motor unit 2, a fixed scroll 10 fixed above the main frame 3, and between the fixed scroll 10 and the main frame 3. It is connected to the rotating shaft (4) penetrated to the upper side of the motor unit 2 is capable of pivoting movement, and comprises a swinging scroll (20) for sucking and compressing air and then discharging the air while being engaged with the fixed scroll (10) In the oxygen generator flow control scroll compressor (1),
On one end surface of the fixed scroll 10 and the rotating scroll 20 corresponding to each other, the spiral fixed to convey air to the discharge port 14 formed at the center of the fixed scroll 10 when the rotating scroll 20 is turned. The wrap 11 and the turning wrap 21 are each protruded and formed to mesh with each other,
The fixed wrap 11 and the swing wrap 21 are formed such that the width (W) of the cross-sectional area is wider toward the center portion to increase the air transfer speed, and the upper surfaces of the fixed wrap 11 and the swing wrap 21 Insert grooves 12 and 22 are formed in the longitudinal direction, respectively, and the tip seal 30 is inserted into the insertion grooves 12 and 22 in the longitudinal direction to fix the fixed wrap 11 and the turning wrap 21, respectively. In close contact with one end face of the scroll 10 and the pivoting scroll 20,
The tip seal 30 is formed in a "T" shape in cross section so as not to be separated from the insertion grooves 12 and 22 of the fixed wrap 11 and the turning wrap 21, and fixed scroll on the horizontal plane of the tip seal 30 The sealing projection 31 is further formed to close contact with one end surface of the 10 and the revolving scroll 20,
The cooling device 40 is installed on the upper surface of the fixed scroll 10 so as to reduce the frictional heat with the fixed scroll 10 and the heat of the air rising by the air compression according to the swinging movement of the swing scroll 20. Flow regulating scroll compressor for an oxygen generator.
The method of claim 1,
The fixed scroll 10 is provided with an electromagnet 15 made of only one pole of the S pole and the N pole inside the upper side, and the electromagnet of the fixed scroll 10 in the lower side of the cooling device 40 ( Electromagnets having the same poles as 15) are spaced apart from each other, so that the fixed scroll 10 is always pushed in the direction of the turning scroll 20 by the repulsive force, so that the fixed scroll 10 and the turning scroll 20 are separated from each other. Flow regulating scroll compressor for oxygen generator, characterized in that the sealing degree increases.
The method of claim 1,
The cooling device 40 has a conveying path 42 through which oil is transferred so that the frictional heat generated by the fixed scroll 10 and the revolving scroll 20 and the heat of the compressed air are transferred to the oil to decrease the density. In addition, the transfer path 42 is formed to be evenly distributed over the whole of one end surface inside the cooling device 40, and the inlet (outlet) at the outer periphery of the cooling device 40 to communicate with the transfer path 42 43 and a discharge port 44 are formed, the cooling device 40 is formed through the connector 41 in the same position as the discharge port 14 of the fixed scroll 10, the cooling device formed with the connector 41 Flow control scroll compressor for oxygen generator, characterized in that the flow control valve 50 is installed to open and close the connector (41) on the upper surface of the (40).
The method of claim 3, wherein
The flow rate control valve 50 is composed of a plurality of plate valves are radially integral type, each having a different thickness, the end surface of the plate valve to open and close the connector 41, the plurality of plate valves are in contact with each other integrally The control shaft 51 penetrates the center portion to adjust the air flow to the connector 41 according to the thickness by manipulating the rotational direction of the plate valve, and the control shaft 51 penetrates the plurality of plate valves while cooling device. Flow control scroll compressor for an oxygen generator, characterized in that installed on the upper surface (40).
The method of claim 3, wherein
A feed pipe 45 is connected to the inlet 43 and the discharge port 44 of the transfer path 42 so that oil is transferred, and the transfer pipe 45 is connected to the cooling fan 5 to cool the device 40. The flow control scroll compressor for an oxygen generator, characterized in that the oil heated in the cooling fan (5) by cooling and natural circulation back to the cooling device (40) by the density difference of the oil.

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