KR100540777B1 - The engine use withdraw heat of cooling system - Google Patents

Abstract

The present invention relates to a cooling system using a recovery heat, which has been previously filed by the present applicant, and more particularly, can be suitably used for a cooling system using the recovery heat, and the stroke of suction-expansion-compression-discharge is smooth. Consistently, it has little torque fluctuation and can be obtained for high efficiency and high power without loss for high speed, so it can be installed more economically in large facilities requiring large amount of coolant without difficulty of securing installation space, and high precision operation The present invention relates to a power generator of a cooling system using a recovery heat to improve the performance and reliability of the device with an accuracy according to the above-mentioned. This is an expansion turning wrap (11A) starting from one side of the center and forming a small involute curve. Expansion swiveling scroll 11 is formed integrally on one side, the other side from the center The compression swing scroll 12 composed of the compression swing wrap 12A forming a plurality of involute curves gradually outwardly at equal intervals is formed integrally, the outer edge of the expansion swing scroll 11 and the compression swing scroll 12 A rotating body (1) formed at one side thereof with an intermediate passage (13) communicating with the expanded swinging scroll (11) and the compressed swinging scroll (12); An expansion fixed scroll (21) consisting of an expansion fixing wrap (21A) forming the same involute curve corresponding to the expansion pivoting wrap (11A) of the rotating body (1) is formed on the inner side to expand the rotating body (1). A front casing portion 2 in which an expansion chamber 22 is formed by engagement with a scroll 11 and a suction port 23 is formed in the center of the expansion fixing wrap 21A; Compression fixed scroll (31) consisting of a compression fixing wrap (31A) coupled to the front casing portion (2) and having the same involute curve corresponding to the compression turning wrap (12A) of the rotating body (1) A rear casing portion formed on the inner side to form a compression chamber 32 by engagement with the compression swing scroll 12 of the rotating body 1, and a discharge port 33 formed in the center of the compression fixing wrap 31A. (3); A driving part 4 connected to the rotating body 1 through the front casing part 2 to pivotally drive the rotating body 1 so as not to rotate, and thus a stroke of suction-expansion-compression-discharge Soft and continuous, less torque fluctuation, high efficiency and high output without loss for high speed. Also, it can be installed more economically in large facilities requiring a large amount of cooling water without difficulty of securing installation space. As a result, the accuracy and accuracy of the device can improve the performance and ensure the reliability of the device.

Description

Power generator for cooling system using recovered heat {The engine use withdraw heat of cooling system}

1 is a perspective view showing the appearance of the present invention.

Figure 2 is an exploded perspective view showing the internal configuration of the present invention.

Figure 3 is an exploded perspective view showing the back of the rotating body of Figure 2;

Figure 4 is a longitudinal sectional view showing an assembled state of the present invention.

5 shows the operating state of the present invention,

Figure 5a is a front view showing an expanded state.

Figure 5b is a front view showing a compressed state.

Figure 6 is a circuit diagram showing a cooling system filed by the applicant.

* Explanation of symbols for the main parts of the drawings

1: rotating body

  11: Expansion swing scroll 11A: Expansion swing wrap

  12: compression swing scroll 12A: compression swing wrap

  13: Intermediate passage 13A: Slope

2: front casing

  21: Expansion fixed scroll 21A: Expansion fixed wrap

  22: expansion chamber 22A: expansion pocket

  23: suction port

3: back casing

  31: Compression fixed scroll 31A: Compression fixed wrap

  32: Compression chamber 32A: Compression pocket

  33: discharge outlet

4: Driving part

  41: crankshaft 42: interlocking camshaft

  43: Crankshaft mounting groove 44: Interlocking camshaft mounting groove

  45: Crankshaft through hole 46: Interlocking camshaft mounting hole

  47: Bush

The present invention relates to a cooling system using the recovery heat, which has been previously filed by the present applicant, and more particularly, can be suitably used for a cooling system using the recovery heat, and the stroke of suction-expansion-compression-discharge is smooth. Consistently, it has little torque fluctuation, and it is possible to obtain high efficiency and high output without loss for high speed, so there is no difficulty of securing the installation space, and it can be installed more economically in large facilities requiring a large amount of cooling water. The present invention relates to a power generating device of a cooling system using the heat of recovery to ensure the performance and reliability of the device with high accuracy.

In general, a cooling system using a cooling tower is applied to smelters, steel mills, power plants, and large buildings. Such a cooling system is a heat dissipation type system in which hot water of a cooling tower is naturally convective and loses heat when it comes into contact with external cold air. As a result, the heat is not recovered and discarded as it is, resulting in enormous energy consumption, cost burden and difficulty in securing space due to its large size. Has been.

Accordingly, the present applicant has proposed the patent application 2003-29219 (2003.5.9) "Recovery heat energy recovery method of a cooling system" to solve the above-mentioned problems, the configuration of the device 6 is a heat exchanger 110 having a refrigerant inlet pipe 111 and a refrigerant discharge pipe 112 formed on one side thereof, and a hot water inlet pipe 113 and a cold water discharge pipe 114 formed on the other side thereof; It is connected to the refrigerant inlet pipe 111 and the refrigerant discharge pipe 112 of the heat exchanger 110 to configure the high temperature refrigerant heat exchanged with the hot water through the refrigerant discharge pipe 112 is introduced into the inside, the high temperature introduced A power generator 120 for high speed expansion and low speed compression of the refrigerant; And a driving unit 130 receiving and receiving surplus energy from the power generating device 120.

The recovery heat energy regeneration device of the cooling system configured as described above, first, the low temperature refrigerant is introduced into the heat exchanger 110 through the refrigerant inlet pipe 111 of the heat exchanger 110, and the introduced low temperature refrigerant is a heat exchanger ( While passing through 110, the hot water circulates from the hot water inlet tube 113 to the hot water circulating from the cold water discharge tube 114 to absorb and recover the heat of the hot water.

The recovered heat is converted into thermal energy by expanding the refrigerant at a high speed in the power generator 120. Some of the thermal energy is compressed at low speed to consume the cooling, and the remaining thermal energy is driven by the driving unit 130. As it is delivered to the side to be recycled as a power source, the proposal of a specific technical configuration for the power generating device 120 is required.

Accordingly, the present invention is to propose a specific technical configuration for the power generator as described above, the purpose of which can be suitably used in a cooling system using the recovery heat, the suction-expansion-compression-discharge stroke is smooth Consistently, it has little torque fluctuation, and it is possible to obtain high efficiency and high output without loss for high speed, so there is no difficulty of securing the installation space, and it can be installed more economically in large facilities requiring a large amount of cooling water. The accuracy of the high-precision operation is to ensure the performance and reliability of the device.

In order to achieve the object of the present invention, an expansion swing scroll composed of expansion swing wraps starting from one side of the center and forming a small involute curve is integrally formed on one side, and gradually starts at the center on the other side at equal intervals. Compression swing scroll consisting of a compression swing wrap forming a plurality of involute curves to the outside is formed integrally, the rotary body formed with an intermediate passage communicating with the expansion swing scroll and the compression swing scroll on one side of the expansion swing scroll and the compression swing scroll Wow; An expansion fixed scroll composed of an expansion fixed wrap having the same involute curve corresponding to the expansion swing wrap of the rotating body is formed on the inner side to form an expansion chamber in combination with the expansion swing scroll of the rotating body, and the expansion fixed wrap A front casing portion having a suction port formed at a center of the suction casing; Combination with the front casing portion, the inner side is formed with a compression fixed scroll consisting of a compression fixed wrap that forms the same involute curve corresponding to the compression swing wrap of the rotating body formed on the inner surface is coupled to the compression swing scroll of the rotating body A back casing portion having a compression chamber formed therein, and a discharge port formed at a center of the compression fixing wrap; The driving unit is connected to the rotating body through the front casing part to drive the rotating body so as not to rotate, and a power generating device of the cooling system using the recovered heat is provided.

In addition, the compression swing scroll and the expansion swing scroll of the rotating body is formed so that the compression swing wrap and the expansion swing wrap to form an involute curve with each other, the front casing corresponding to the compression swing wrap and the expansion swing wrap The compression fixing wrap and the expansion fixing wrap of the upper and rear casing portions are formed so as to form the same involute curve as the compression swing wrap and the expansion swing wrap.

In addition, the intermediate passage is characterized in that formed inwardly inclined to reduce the flow resistance.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the appearance of the present invention.

As shown therein, the present invention is constituted by the combination of the front casing portion 2 and the rear casing portion 3, and the front casing portion 2 and the rear casing portion 3 inside the front casing portion 2. It is connected to the crankshaft 41 penetrating through it is provided with a rotating body (1) to be rotated so as not to rotate, the crankshaft 41 receives power from an external drive source, that is, a motor (not shown) Is rotated.

2 is an exploded perspective view showing the internal configuration of the present invention.

The rotating body 1 between the front casing portion 2 and the back casing portion 3 is formed with the expansion swing scroll 11 (see Fig. 3) and the compression swing scroll 12 integrally formed at both sides. The expansion swing scroll (11) is composed of an expansion swing wrap (11A) forming a few involute curves starting from one side of the center outward, the compression swing scroll (12) gradually starts at the center and gradually outward at equal intervals. It is composed of a compression swing wrap 12A forming a plurality of involute curves, the expansion swing scroll 11 and the compression swing scroll 12 on the outer side of the expansion swing scroll 11 and the compression swing scroll 12 An intermediate passage 13 is formed.

At this time, the intermediate passage 13 is formed by the inward inclined surface (13A) to reduce the flow resistance, the compression swing scroll 12 and the expansion swing scroll 11 of the rotor 1 is a ratio of 3: 1. The furnace compression swing wrap 12A and the expansion swing wrap 11A form an involute curve with each other, and the front casing portion 2 and the rear casing correspond to the compression swing wrap 12A and the expansion swing wrap 11A. The compression fixing wrap 31A and the expansion fixing wrap 21A of the part 3 are formed to form the same involute curve as the compression turning wrap 12A and the expansion turning wrap 11A. As described later.

Inside the front casing portion (2) is an expansion fixed scroll (21) which is engaged with the expansion swing scroll 11 of the rotating body (1) in a 180 degree phase difference to form an expansion chamber (22), The expansion fixed scroll (21) is composed of an expansion fixed wrap (21A) grooved to form the same involute curve corresponding to the expansion pivot wrap (11A) of the rotating body (1), of the expansion fixed wrap (21A) A suction port 23 is formed in the center, and the expansion chamber 22 is formed by a pair of crescent shaped expansion spaces, that is, expansion pockets 22A.

In addition, a compression fixed scroll 31 is formed inside the rear casing 3 so as to be engaged with the compression swing scroll 12 of the rotating body 1 by a phase difference of 180 degrees to form a compression chamber 32. The compression fixed scroll 31 is composed of a compression fixed wrap 31A grooved in the same involute curve corresponding to the compression swing scroll 12 of the rotating body 1, of the compression fixed wrap 31A A discharge port 33 is formed at the center, and the compression chamber 32 is formed by a plurality of pairs of crescent shaped compression spaces, that is, compression pockets 32A.

In addition, a driving part 4 is formed through the front casing part 2 and connected to the rotating body 1 so as to pivotally drive the rotating body 1 so as not to rotate, and the driving part 4 is an expansion turning part. A crankshaft mounting groove 43 is eccentrically formed in one side surface of the rotating body 1 on which the scroll 11 is formed, and a crank shaft corresponding to the crankshaft mounting groove 43 is formed in the front casing part 2. A through hole 45 is formed, wherein the crank shaft inserted through the crank shaft through hole 45 of the front casing part 2 and inserted into the crank shaft mounting groove 43 of the rotating body 1 has an eccentric end. And a distal end thereof is inserted into the crankshaft mounting groove 43 of the rotating body 1 together with the bush 47 in sliding contact. (See FIGS. 4 and 5A.)

In addition, three interlocking camshaft mounting grooves 44 are formed in a triangular shape on the outer side of the crankshaft mounting groove 43 of the rotating body 1, and the front casing portion 2 has the interlocking camshaft mounting groove ( A linkage camshaft installation hole 46 corresponding to 44 is formed, and the linkage camshaft 42 formed in the linkage camshaft installation hole 46 of the front casing 2 has the same amount of eccentricity as the crankshaft 41. It is formed with an eccentric end having L1 = L2, and the end is inserted into and mounted in the interlocking camshaft mounting groove 44 of the rotating body 1 together with the bush 47 that is in sliding contact, so that the turning drive can be performed without rotation. (See FIG. 5A.)

4 is a cross-sectional view showing an assembled state of the present invention.

First, the expansion swinging scroll 11 of the rotating body 1 is inserted into the expansion fixed scroll 21 of the front casing 2 so as to be engaged with each other by a 180 degree phase difference to form an expansion space, that is, a pair of crescent moons. An expansion chamber 22 made of an expansion pocket 22A is provided, and the compression swing scroll 12 of the rotating body 1 is inserted into the compression fixed scroll 31 of the rear casing part 3 by 180 degrees. Compression chamber 32 is composed of a compression space, that is, a pair of crescent-shaped compression pockets (32A) coupled to be engaged with each other.

In addition, an eccentric end portion of the crankshaft 41 penetrating the crankshaft through hole 45 of the front casing portion 2 is inserted into the crankshaft mounting groove 43 of the rotating body 1 together with the bush 47. In the interlocking camshaft mounting groove 44 of the rotating body 1, the eccentric end portion of the interlocking camshaft 42 built in the interlocking camshaft installation hole 46 of the front casing 2 is provided with a bush 47. It is fitted with inserts.

Here, reference numeral 5 denotes an operating space part of the rotating body 1 that rotates.

In the present invention configured as described above, the rotating body 1 rotates by the crankshaft 41 which is rotationally driven by a motor (not shown) as usual, but the outer interlocking camshaft 42 of the crankshaft 41 is rotated. ) Will rotate without rotation.

In addition, the refrigerant flowing into the expansion chamber 22 through the suction port 23 of the front casing 2 by the pivoting motion of the rotating body 1 is expanded at a high speed, and the high-expanded refrigerant is rotated again. It is sucked into the compression chamber 32 through the intermediate passage 13 of (1) and is compressed at a low speed, and then discharged through the discharge port 33, which will be described in more detail with reference to FIGS. 5A and 5B. This is as described below.

5A and 5B are cross-sectional views illustrating an operating state of the present invention, and FIG. 5A is a cross-sectional view illustrating a coupling state of a front case and a rotating body.

As shown in the present invention, first, the refrigerant is sucked through the inlet 23 of the front casing 2, and the sucked refrigerant is rotated in accordance with the swinging movement of the expansion swing scroll 11 of the rotating body 1. Two symmetrical crescent shaped shapes are sucked from the central portion of the expansion pivot wrap 11A and are formed between the expansion pivot scroll 11 of the rotor 1 and the expansion fixed scroll 21 of the front casing 2. It is trapped in the expansion space, that is, the expansion pocket 22A, and the expansion pocket 22A continuously moves toward the scroll end with increasing volume, and the refrigerant is expanded.

Then, the expanded refrigerant is compressed and fixed to the compression swing scroll 12 and the back casing portion 3 of the rotating body 1 again through the intermediate passage 13 of the rotating body 1 as shown in FIG. Two symmetrical crescent shaped compression spaces sucked from the end of the scroll 31 and formed between the compression swinging scroll 12 of the rotating body 1 and the compression fixed scroll 31 of the rear casing 3, That is, it is trapped in the compression pocket 32A, and this compression pocket 32A continuously moves toward the center while decreasing its volume in accordance with the rotational motion of the rotating body 1, and the refrigerant is compressed to its center, that is, the rear surface. It is discharged through the discharge port 33 formed in the center of the compression fixed scroll (31) of the casing portion (3).

On the other hand, the present invention is the same as the involute curve, the expansion swing scroll 11 and the expansion fixed scroll 21 of the front casing portion 2 of the rotating rotating body 1 is engaged with the 180 degrees phase difference is the outer wrap wrap While it is formed by forming a few involute curves, the compression swing scroll 12 of the rotating body 1 and the compression fixed scroll 31 of the rear casing 3 have a large number of scroll wraps at the center of the rotating body 1. That is, the expansion is made at a high speed, and the compression is made at a low speed because it is formed in an involute curve at a ratio of about 3: 1 more than the scroll wrap of the expanded portion.

As described above, the present invention combines the expansion swing scroll and the compression swing scroll integrally with the expansion fixed scroll and the compression swing scroll formed on the inner side of the front casing portion and the rear casing portion by integrating the expansion swing scroll and the compression swing scroll to both sides of the rotating body. Provided, but a small number of involute wraps constituting the swing and fixed scroll in the expansion chamber, a plurality in the compression chamber to form a large number in the compression chamber to achieve high-speed expansion and low-speed compression to power the cooling system using the recovery heat Not only can be used suitably for the transmission device, but the suction-expansion-compression-discharge stroke is smooth and continuous, so there is little torque fluctuation, and it is possible to obtain high efficiency and high power without loss for high speed, and also to secure the installation space. Install more economically in large facilities that require large amounts of coolant without difficulty May be used, the accuracy of the high-accuracy operation will have an effect capable of ensuring the improved performance and reliability of the device.

Claims (3)

An expansion pivoting scroll (11) consisting of an expansion pivoting wrap (11A) forming a few involute curves starting from one side of the center is integrally formed on one side, and the other side gradually starts out from the center and gradually becomes outward at equal intervals. Compression swing scroll 12 consisting of a compression swing wrap 12A forming an involute curve of the integrally formed, the outer side of the expansion swing scroll 11 and the compression swing scroll 12 is the expansion swing scroll (11) And a rotating body 1 having an intermediate passage 13 communicating with the compression swinging scroll 12; An expansion fixed scroll (21) consisting of an expansion fixing wrap (21A) forming the same involute curve corresponding to the expansion pivoting wrap (11A) of the rotating body (1) is formed on the inner side to expand the rotating body (1). A front casing portion 2 in which an expansion chamber 22 is formed by engagement with a scroll 11 and a suction port 23 is formed in the center of the expansion fixing wrap 21A; Compression fixed scroll (31) consisting of a compression fixing wrap (31A) coupled to the front casing portion (2) and having the same involute curve corresponding to the compression turning wrap (12A) of the rotating body (1) A rear casing portion formed on the inner side to form a compression chamber 32 by engagement with the compression swing scroll 12 of the rotating body 1, and a discharge port 33 formed in the center of the compression fixing wrap 31A. (3); A driving part 4 connected to the rotating body 1 through the front casing part 2 to pivotally drive the rotating body 1 so as not to rotate, and the cooling system using the recovered heat. Power generating device. The method of claim 1, The compression swing scroll 12 and the expansion swing scroll 11 of the rotating body 1 is formed such that the compression swing wrap 12A and the expansion swing wrap 11A form an involute curve with each other at a ratio of 3: 1. Compression fixed wrap 31A and expansion fixed wrap 21A of front casing portion 2 and back casing portion 3 correspond to the compression swing wrap 12A and expansion swing wrap 11A. 12A) and the power generating device of the cooling system using the recovery heat, characterized in that formed in the same involute curve as the expansion swing wrap (11A). The method of claim 1, The intermediate passage (13) is a power generator, characterized in that formed inwardly inclined surface (13A) to reduce the flow resistance.

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