JP2013130150A - Suction compression high-pressure blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a high-pressure blower to enhance function, to reduce size and to reduce cost, compared with existing types thereof.SOLUTION: Suction process and delivery process functions are provided in a composite sine curve based blade 8 of a rotary impeller built in a blower casing constituting a body, improved blade constitution is attained in viewpoint thereof, a disk is attached over the whole face on a rotary flange 6 reverse side end face, a disk provided with a suction port pipe is attached on a surface side suction port end face, a semi-sealed impeller is constituted to open only a suction port and an outer circumferential normal, the impeller suction port is structurized further to be connected to a suction port of the casing, a loss by a backflow of compressed air delivered from the rotary impeller is thereby prevented, and further function structure is provided to compress air and to weight air pressure, in a process of carrying out transfer blowing from a casing delivery port 3 to a mating side diameter-different pipe by a diameter-different pipe contraction pipe.

Description

      The present invention relates to the manufacture of a high-pressure blower whose demand is expanding in various fields.

In modern society, industrial technologies that utilize blast power are not limited to enumeration, and since they have a great influence on the foundation, corresponding models have emerged and been supplied for a long time.
Many high-pressure fans of the present subject matter are also supplied.
In addition, a number of devices related to heat exchange combustion that require the function of a high-pressure blower have been devised, but what is commonly required for these is the need to maintain a negative pressure inside the combustion furnace Therefore, a mechanism for applying a suction force by using an improved venturi scrubber is required as an alternative to the equipment enhancement for enhancing the chimney function that requires a strong suction force. In addition to the high-pressure blower with a high airflow specification, it is necessary to use a high-pressure blower with a small airflow specification for a mechanism in which a combustion flame and an obliquely opposed airflow air film are injected to collide with each other. However, it is necessary to reduce the size as compared with the fact that it is complicated and increases in size and becomes expensive.

When the inventor cuts the rice straw and uses the discharge blower device during farming, he / she struggles to cope with the cutting straw adhering to the blade incident point of the blower's cross-shaped impeller, and the cutting straw does not adhere to the incident point And we devised an impeller mechanism with a large force to jump off.
Four blade blades with a structure where the rotation resistance of the incident point face, which is the inlet of the blade blades based on the synthetic orthodox curvilinear shape, is zero are arranged on the rotating shaft flange at eccentric positions. It is an impeller made up of blade blades.
The blower for a cutting wall with an inlet of 15 cm, a blade width of 15 cm, and an impeller wheel diameter of 44 cm had a sufficient force to jump off at an incident point resistance = 0. In addition, the blower for conveying a blowfish having a suction port of 10 cm, a blade width of 8 cm, an impeller diameter of 38 cm and a rotation speed of 2,000 rotations has a long conveying distance. Therefore, in order to use a 7.5 cm diameter pipe, Although it was connected and used with a 40 cm length different diameter throttle device tube, the material was scattered by direct discharge, so the discharge pressure required a cyclone.
The blade blade end surface behind the rotating shaft flange is equipped with a full disk, the inlet side end surface is open, and the blade blade end surface has a structure with a 2 cm edge for the convenience of manufacturing the blade shape.

      A steam turbine system was developed in which the wing-shaped basic diagram of the previous section was improved and converted to rotational force by passive rotation. At the same time as converting the large-volume steam pressure to rotational force, taking advantage of the negative pressure suction force generated on the back of the blade blade, draw cold air or cold water from the vent of the hollow rotating shaft, and at the same time protect the bearing, the steam rapidly Aimed at a muffler effect function that shrinks when cooled.

      In addition, a number of devices related to heat exchange combustion that require the function of a high-pressure blower have been devised, but what is commonly required for these is the need to maintain a negative pressure inside the combustion furnace Therefore, a mechanism for applying a suction force by using an improved venturi scrubber is required as an alternative to the equipment enhancement for enhancing the chimney function that requires a strong suction force. In addition to the high-pressure blower that uses multiple winds, it is necessary to use a high-pressure blower that uses a small amount of air for a mechanism that injects a combustion flame and a diagonally opposed flow air film against each other. However, it is necessary to reduce the size as compared with the fact that it is complicated and the increase in size is effective.

Conveying device using rotating blades-Patent 2711402 Steam turbine equipment-Patent 4367733 High-efficiency heat exchange combustion device-Patent No. 3030321 Suction dry distillation gasification combustion apparatus for mature solid substance-Patent No. 4220083 Biomass dry distillation gasification combustion heat conversion power generation apparatus Steam boiler using solid biomass or coal as fuel-Patent 4824827

      The devices listed in each field are examples of applications that require a high-pressure blower, and use specific oils or gases that require heat or save significant fuel in combustion to obtain heat. To enhance the function of a high-pressure, low-air-volume blower or chimney for heat exchange combustion means or a device intended to produce pure carbon fuel with good combustion heat generation efficiency through carbonization of solid material and reforming to high calorie fuel The high-pressure, high-volume air blower is indispensable for a compact and efficient device and system.

When the above-described object is specifically verified, the burner air flow rate <the high pressure counter flow air flow rate <the suction, with respect to the counter air blow combustion method (reference 3), which is the basis of fuel saving in the combustion apparatus for obtaining the heat described in the previous section Since it is premised that the balance of each exhaust and exhaust amount is called exhaust amount, it is necessary to raise the chimney in order to keep the inside of the furnace in a negative pressure state in the combustion heat exchange device. Proposed the improved venturi scrubber mechanism as one means to avoid the surrounding environment constraints due to the increased equipment cost (Patent Document 5 injects steam and induces exhaust gas to reduce the steam pressure) (Mechanism diagram for weight conversion).
However, there are various problems with existing fans in terms of performance and price, and the response is urgent.
1. Regarding the direct combustion mechanism, the use of a ring floor was timely, but 1. For the improved venturi scrubber for keeping the other furnace at a negative pressure, a high-pressure blower with a high air flow specification such as a turbo fan is required.

The above-mentioned improved vencho scrubber is an attracting function for exhausting exhaust gas into the chimney, and the high-pressure air film is blown into the chimney in the form of an expanded radiation film to expand the suction cross section. Get out.
The improvement of the jet part has been proposed by diverting the application in the chimney as shown in the mechanism diagram that injects the steam of Patent Document 5 (Fig. 3), attracts the exhaust gas, and weight-converts the vapor pressure. The high-pressure blower requires a turbofan having a high air volume and high pressure, but is more complicated and expensive than the ring blower for the previous example. Moreover, since absolute pressure is also insufficient, improvement of both remains as a problem, and solving them is a goal and a problem of the present application.

      The blower of the high-pressure air discharge function aimed at by the present application is an improved device that maintains and enhances the negative pressure suction force of the carrier blower according to Japanese Patent Application No. 2711402 and converts it into a compression discharge force by a characteristic rotational flow inertia.

基調となる合成正弦曲線の一般式は、
ｙ＝Ａｓｉｎ（ＢＸ）……………（１）で示される。

（範囲は −π／Ｂ≦Ｘ≦π／Ｂ）Ｘ単位はラジアン
本例の場合曲線の変曲点０を原点として
変曲点０より左側（ＣＢＯ）は……………Ｘ≧０で
基本振幅をａとして…………………………（１）の式は
ｙ＝ａｓｉｎＸ／ａ （Ａ＝ａ Ｂ＝１／ａ）

（範囲は −πａ≦Ｘ≦Ｏ）
また、変曲点０より右側（ＯＡＤ）は………Ｏ≦Ｘで
基本振幅を２ａとして………………………（１）式は
ｙ＝２ａｓｉｎＸ／２ａ （Ａ＝２ａ Ｂ＝１／２ａ）

（範囲はＯ≦Ｘ≦πａ）
でそれぞれ示される。
具体的な数字を代入した図２の実線は、
ａ＝１．２５とすると
ｙ＝１．２５ｓｉｎＸ／１．２５ （−１．２５π≦Ｘ≦Ｏ）
ｙ＝２．５ｓｉｎＸ／１．２５ （Ｏ≦Ｘ≦１．２５π）
によるものである。 Since the present application is based on the basics of the special blades, it is cited and the basic diagram is shown in Table 1 and the grounds will be described below.

The general formula for the synthetic sine curve is
y = Asin (BX) (1).

(Range is -π / B ≤ X ≤ π / B) X is in radians In this example, the inflection point 0 of the curve is the origin and the left side of the inflection point 0 (CBO) is ... X ≥ 0 Assuming that the fundamental amplitude is a, the equation of (1) is y = asinX / a (A = a B = 1 / a)

(Range is -πa ≦ X ≦ O)
Also, the right side (OAD) from the inflection point 0 is ......... O≤X and the basic amplitude is 2a .......... (1) is expressed by y = 2asinX / 2a (A = 2a B = 1) / 2a)

(Range is O ≦ X ≦ πa)
Respectively.
The solid line in Fig. 2 with specific numbers assigned is
When a = 1.25, y = 1.25 sin X / 1.25 (−1.25π ≦ X ≦ O)
y = 2.5sinX / 1.25 (O ≦ X ≦ 1.25π)
Is due to.

In the transporter, a rotating impeller built in a normal blower casing is made up of a plurality of impeller blades having a significant length based on a synthetic sine curve and a one-dimensional width on a rotating shaft flange of a set diameter. The structure is eccentrically fixed, further fixed to the flange back disk, and has a structure in which the suction port side is open with an edge, and the suction port of the casing is not in contact with the blade blade. Therefore, the suction negative pressure at the suction port generated with the rotation of the impeller is distributed and decompressed in the casing and discharged. However, it was satisfied with its ability to convey rough objects (cutting straws, momigara), which was originally intended, and was equipped with a suction negative pressure that was much more efficient than previous similar-purpose conveyors. The power was great.
Chaff transport machine of many years of experience, the casing of the blower has a diameter of 40cm, width 10cm, by the wings Tsubasahaba 8cm specification, embarked in 15 minutes in the tank of 3m ³ in the 2000 rotation.
From a connecting device having a suction port diameter of 10 cm and a discharge port diameter of 10 cm square, it was narrowed down to a 7.5 cm diameter tube with a 40 cm-long different diameter throttle connection tube and conveyed for a long distance. While the compression ratio was 56%, the discharge pressure required a cyclone at the discharge port.

The blade shape of the blower impeller of the present application is based on the basics of Table-1 shown in (0009), and is the basis for selecting the blade shape according to the purpose of use of the present application, which is the first improvement point for improving the impeller. The improved composite / sine curve diagram is shown in Table-2.

Select from Table-2 as follows to improve the specifications of the original transport blades.
(1) Since it is desirable that the amplitude of (+) A in the table is close to the radius of the rotating shaft flange, (+5) is selected. The range A-0 (+ 2n) is the shortest and the suction resistance of the face air is minimized, so that the amount of intake air is secured.
(2) The position A of the amplitude (+5) becomes the cutting line of the rotary shaft flange, and becomes the arc cutting point of the blade blade, which becomes the air suction face.
(3) The amplitude of 0-C (-) B, which governs the discharge inertia of the blade blades, gives a large air flow inertia (-2), and the range is selected as 0-C (-4n) Corresponding to air flow inertia maintenance enhancement.

The process of aiming at a blower that enhances the discharge pressure and the air volume of the present application based on the basis of the improvement of the blade shape of the blade blade converted to the discharge force by the negative pressure suction and the flow inertia of the preceding paragraph is as follows.
(1) The synthetic sine curve-based wing shape of the combination selected in the previous section and four blade blades with a width close to the suction port diameter are equally combined and arranged, and the cutting line of the rotary shaft flange having the same diameter as the suction port diameter The arc contacts of the blade blade base are overlapped and attached eccentrically.
(2) The end surface on the back side of the rotary shaft flange is fixed by a full disk.
(3) A blade blade end surface on the suction port side serving as the target surface is fixed by a disk having a suction tube.
(4) The impeller becomes a semi-hermetic impeller with the outer peripheral normal line opened by the above-described combination process, and the opened suction port has a structure that is connected to the suction port of the casing.
(5) The structure of the casing for storing the impeller described above is a shell structure in which the outer peripheral normal corresponding to the shape of the impeller is as close as possible to the entire periphery, and the discharge port is a square connection port device in series with the outer peripheral normal. Alternatively, a circular device is provided.
(6) The casing suction port shall be connected to the impeller suction port. As a result, the discharged air does not flow back to the impeller inlet in the casing, and the air flow is not disturbed.
(7) The discharge port connecting device is connected by a device corresponding to the air receiving pipe diameter of the receiving utilization device.
(8) The above-described device is a different-diameter narrowed connecting pipe device that extends in length according to the ratio of narrowing the pipe diameter.

The function of the blower completed in the above process is as follows.
The amount of air in the suction process is secured by the negative pressure generated by the rotation of the impeller, and is converted into discharge pressure by the set rotational flow inertia in the discharge process. Further, the diameter of the discharge port of the blower is received by the use device. Since it is larger than the pipe diameter, the discharge air is compressed and the discharge pressure is applied while the connection is shifted by the different diameter narrowing transfer device pipe, and the function as a high-pressure blower is completed.

          The functions implemented in the order of the above-mentioned terms reach the goal of the term (0008) aimed by the present application. Since the inventor can realize the cheapest alternative to the chimney mechanism that realizes the suction negative pressure function of the heat exchange combustion furnace that was originally required, it started from the effect that can promote the field, in other fields Compared to existing high-pressure blowers that are becoming more complex and more expensive with larger sizes, it can be expected to have a small-scale and low-priced economic effect. Expectations are expected to expand.

Frontal longitudinal view of high-pressure blower Casing side profile Impeller side profile

      The present application starts from improving the function of the carrier blower in (0003), and aims at a small, simple, and low-priced device that has the high pressure and high function required by each of the current fields. Describe the basic points.

(1) Since it depends on the rotational flow inertia of a semi-sealed impeller composed of a composite sinusoidal blade, a combination blade that draws out both the suction and discharge functions is selected and set.
From the reference diagram of Table 2 to the point C of the amplitude (−) B of (−) B through the range from the top point A of the amplitude (+5) of (+) A to the zero point of the inflection point. A range of (−4n) is set. Point A is also a circular arc contact of the blade blade base, and is a position that overlaps the cutting line of the rotating shaft flange and also serves as a blade blade. The four blade blades, whose width is set equal to the diameter of the rotary shaft flange and the diameter of the suction port, are equally arranged on the rotary shaft flange and mounted eccentrically as described above.
(2) The blade blade end surface on the back side of the rotating shaft flange is fixedly attached with a full disk, and the suction surface on the suction surface side of the target surface is mounted with a disk with a suction pipe set equal to the flange diameter. Has a semi-enclosed structure in which only the suction port and the impeller normal surface are opened, and the suction pipe is connected to the suction port of the casing.
(3) The casing structure is similar to the impeller shape, and the outer peripheral normal is an outer shell structure that is as close to the periphery as possible. The inlet is connected to the inlet of the built-in impeller, and the outlet is the outer peripheral normal. And a square opening connecting device in series.
(4) The casing discharge device is connected with a different diameter narrowing device pipe having a specification that extends the length in accordance with the ratio of narrowing the different diameter pipe in order to correspond to the air receiving pipe diameter of the counterpart device.
(5) Due to the rotational flow inertia of the impeller having the characteristics constituted by the above combination, the amount of negatively sucked air is ensured, and the flow-converted discharge air pressure does not cause a rotation loss. The air pressure transferred by this mechanism is reliably weighted.
(6) Moreover, even if it is the same air blower, functional strength adjustment is also possible by change of rotation speed (for example, 4P, 2P of a motor, or a variable speed motor), and the utilization range expands.

This application was conceived as an essential device of the improved venturi scrubber device that improves the chimney function of the device that converts to a high rate of steam heat pressure by burning solid objects listed in (0005). Compared to the above, it is highly functional and economical and excellent in miniaturization. This directly leads to the promotion of the equipment sector, and contributes to the significant progress and expansion of the facilities used.
In the midst of increasing importance of current energy-related issues, we will contribute to improving the efficiency of related equipment and facilities by reducing the economic burden of resource-saving technology, energy-saving technology, and CO2 reduction technology and equipment.

1-casing. 2- Directly mounted motor. 3-Discharge port. 4- Casing inlet.
5-Rotating shaft. 6-Rotating shaft flange. 7—Rotary shaft flange back fixed side plate.
8-blade wings. 9-Side plate with inlet. 10-Impeller inlet.

The process of aiming at a blower that enhances the discharge pressure and the air volume of the present application based on the basis of the improvement of the blade shape of the blade blade converted to the discharge force by the negative pressure suction and the flow inertia of the preceding paragraph is as follows.
(1) The synthetic sine curve-based wing shape of the combination selected in the previous section and four blade blades with a width close to the suction port diameter are equally combined and arranged, and the cutting line of the rotary shaft flange having the same diameter as the suction port diameter The arc contacts of the blade blade base are overlapped and attached eccentrically.
(2) The end surface on the back side of the rotary shaft flange is fixed by a full disk.
(3) A blade blade end surface on the suction port side serving as the target surface is fixed by a disk having a suction tube.
(4) the impeller by the above-described combination process becomes semi-sealed impeller outer peripheral surface normal is opened, the opened inlet riser comprises inlet pipe of the casing and the structure of the connecting specifications.
(5) The structure of the casing for storing the impeller described above is a shell structure in which the outer peripheral normal corresponding to the shape of the impeller is as close as possible to the entire periphery, and the discharge port is a square connection port device in series with the outer peripheral normal. Alternatively, a circular device is provided.
(6) The casing inlet pipe shall be connected to the inlet riser pipe of the impeller. As a result, the discharged air does not flow back to the impeller inlet in the casing, and the air flow is not disturbed.
(7) The discharge port connecting device is connected by a device corresponding to the air receiving pipe diameter of the receiving utilization device.

[0016]
The function of the blower completed in the above process is as follows.
The amount of air in the suction process is ensured by the negative pressure generated along with the rotation of the impeller, and is converted to the discharge pressure by the set rotational flow inertia in the discharge process.
【Example】

(1) Since it depends on the rotational flow inertia of a semi-sealed impeller composed of a composite sinusoidal blade, a combination blade that draws out both the suction and discharge functions is selected and set.
From the reference diagram of Table-2, the amplitude (+) of the amplitude (-2) of (-) B is passed through the range (+ 2n) from the top A point of the amplitude (+5) of (+) A to the zero point of the inflection point. The length up to point C in the range (−4n) is set. Point A is also a circular arc contact of the blade blade base, and is a position that overlaps the cutting line of the rotating shaft flange and also serves as a blade blade. The width is set to a width smaller than the diameter of the suction port, and the four blade blades are arranged eccentrically on the rotary shaft flange as described above.
(2) The blade blade end surface on the back side of the rotary shaft flange is fixedly mounted with a disk, and the disk with the inlet riser set equal to the flange diameter is mounted on the suction port side end surface of the target surface.
The impeller has a semi-hermetic structure in which only the suction port and the impeller normal surface are opened, and the suction pipe is connected to the suction port of the casing.
(3) caging structure similar to the impeller shape, with an outer shell structure of the entire circumference near shape as possible the outer circumference normal, the suction pipe is connected with the inlet riser of impeller built-discharge opening periphery A square aperture connection device in series with the normal is provided.
(4) Even with the same blower, it is possible to adjust the strength of the function by changing the number of revolutions (for example, 4P, 2P of the prime mover, or variable speed motor), and to the demand device only by changing the blade blade width. This makes it possible to expand the scope of use.

1-casing. 2- Directly mounted motor. 3-Discharge port. 4-casing inlet tube .
5-Rotating shaft. 6-Rotating shaft flange. 7—Rotary shaft flange back fixed side plate.
8-blade wings. 9- Side plate with inlet riser . 10-Impeller inlet.

Claims (2)

The rotary impeller built in the blower casing and driven by power has a suction process function and a discharge process function, and each has a (+) A, (-) B amplitude and range of blades set with the formation curve. A plurality of blades composed of blades having a shape and a set width are arranged evenly, and eccentricity is attached to the rotary shaft flange. A full disk is attached to the blade blade end surface on the back side of the rotary shaft flange, and the target side A semi-enclosed impeller is constructed by attaching a disk with a suction pipe, and from the suction opening of the impeller to the normal discharge outlet, the suction pressure generated by the rotational flow inertia with uninterrupted characteristics , Ensure the amount of air sucked in, rotate and flow to convert to discharge pressure.
Specifically, the diameter of the rotary shaft flange of the impeller is set equal to the diameter of the suction port, the wing shape is selected from the improved synthetic sine curve reference diagram, and the amplitude of the (+) A sine curve corresponding to the suction process is selected. (+5), the apex A point is also a circular arc contact that becomes the base of the blade, and is set equal to the radius of the rotating shaft flange, so the curve range is also a half (+ 2n), The width of the slats is also set equal to the suction port diameter, the amplitude of (−) B ahead of the inflection point in the discharge process is a specific line (−2), the range is the full length (−4n), and the width is also ( A wing configuration in which the sine curves of (+) A and (-) B are synthesized with the same setting as the blade blade of (+) A is prepared, and the blade wing configuration based on that is determined.
The arc contact at the amplitude top position of (+) A of the blade blade is set to be eccentric mounting in which the blade is overlapped with the cutting line of the rotary shaft flange, and the four blade blades are arranged uniformly to form the blade blade configuration.
The blade blade end surface on the back side of the rotary shaft flange is fitted with a full disk up to the outer peripheral edge, the target surface is fitted with a full disk with a suction pipe, and the enclosed blade blade is bucket-shaped, By adopting a semi-enclosed impeller that is open only on the normal surface of the impeller, the suction incident point face of the driving impeller blade becomes zero resistance, and the intake air amount is secured, and the discharge due to the flow in the semi-enclosed structure A suction-compression high-pressure blower characterized in that the suction pressure is increased by the characteristic rotational flow inertia without loss to the outlet, the intake air amount is secured, and the discharge air pressure is increased by interlocking conversion. The casing containing the impeller according to claim 1 is provided with a mechanism for supporting the rotating shaft for transmitting power, and has a shape corresponding to the shape of the impeller incorporated, and an outer shell structure that is as close as possible to the impeller normal. The casing suction port is designed to be closely connected to the impeller suction port to prevent backflow of the pressure air discharged from the rotary vane wheel. A discharge port in series with the outer circumference normal line is equipped with a connection part, and connected with a different diameter narrowed connection pipe that narrows down according to the diameter and shape of the receiving blower pipe of the counterpart device. The different-diameter narrowed connecting pipe is designed to increase in length according to the narrowing ratio, so that the blown air is compressed in proportion to the narrowing ratio of the pipe diameter and the discharge pressure is weighted. Item 2. The suction compression high-pressure blower according to Item 1.

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