TURBO BLOWER FOR OPERATION IN THE PRESSURE STUMP RANGE

Abstract

Turbo blower capable of operating in a pressure surge range, comprehensive a turbo blower machine unit (100) which increases the pressure of the inwardly flowing outside air and then discharges the outside air; and a turbo blower control unit (200) which drives the turbo blower machine unit (100) in such a way that the turbo blower machine unit (100) is operated stably for a predetermined time even in a pressure surge range (SR), wherein the turbo blower machine unit (100), which draws in air, increases the pressure of the air and then expels the air, comprises: a body casing (110) which has a predetermined size and in which a predetermined space is formed; an air inlet (120) which is formed on one side of the body casing (110); a turbo blower (130) which is arranged in the body housing (110) and draws in and expels air flowing into the air inlet (120); an air outlet cone pipe (140) which is coupled to the turbo blower (130) and directs the air expelled by the turbo blower (130) to the body housing (110); a turbo blower silencer (150) which suppresses and reduces the noise generated from inside the body housing (110); an electric valve (160) whose opening / closing degree is automatically controlled based on a pressure surge; and a drain valve (170) which is automatically opened / closed in accordance with the status of the turbo blower (130) and discharges air at temporarily increased pressure to the outside in order to prevent backflow of air at increased pressure and an instantaneous reduction in operating efficiency (flow rate) when the air at increased pressure flows through the turbo blower (130) to the air outlet cone pipe (140) which is installed on the air outlet cone pipe (140), in order to effectively suppress pulsation which is generated when the turbo blower (130) is operated and pulsation which is generated during operation by higher-level processes, in order to prevent collision of the air which is drawn in and the air which is expelled after the pressure has been increased, in order to increase the time for the expulsion of the air at increased pressure, and to prevent damage to an impeller (132) of the turbo blower (130).and to protect the turbo blower (130), , the turbo blower (130) includes: a turbo blower housing (131) with an air inlet duct (IA) and an air outlet duct (OA); an impeller (132) which draws air into the turbo blower housing (131), increases the pressure of the air and then expels the air; a turbo blower motor (133) consisting of a rotor (R) and a stator (S) which set the impeller (132) in rotation; and a cooler (134) which prevents an increase in the internal temperature of the turbo blower housing (131), wherein energy is applied to the air drawn into the air inlet duct (IA) by the rotation of the impeller (132), thereby increasing the air volume and air pressure and releasing the air into the air outlet duct (OA) at increased pressure, wherein the turbo blower control unit (200), which controls the operation of the turbo blower machine unit (100) in a normal range (CR) and a pressure surge range (SR) due to a temporary pressure surge, comprises: an inverter (210) which supplies power to the turbo blower machine unit (100); a control panel (220) which sets and checks a real-time status of the turbo blower machine unit (100) supplied by the inverter (210); a pressure surge detection driver (230) which controls the turbo blower machine unit (100) so that it is operated stably for a predetermined time even in a pressure surge range (SR); a data storage unit (240) which stores data about an operating history, a pressure surge operating history (SR) and a pressure surge history of the turbo blower machine unit (100); and a control unit (250) which controls the inverter (210), the control panel (220), the surge detection (SR) driver (230) and the data storage unit (240), which controls the turbo blower machine unit (100) so that it operates stably for a predetermined time even in the pressure surge range, thus inducing operation in the pressure surge range (SR) to operation in a normal range, the pressure surge detection driver (230) includes: a pressure surge range sensor unit (231) which detects whether the operating state of the turbo blower machine unit (100) is operation in the normal range or operation in the pressure surge range; an automatic control valve activator (232) which automatically controls the electric valve (160) in accordance with the degree of opening / closing set by a conductor when the pressure surge range sensor unit (231) detects operation in the pressure surge range; a pressure surge operating unit (233) which maintains the operation of the turbo blower machine unit (100) by actuating the automatic control valve activator (232); and a pressure surge operating stop (234) which interrupts the operation of the turbo blower machine unit (100) when the pressure surge operating unit (233) detects that the turbo blower machine unit (100) is not being operated in the pressure surge range by a temporary pressure surge wave, but by a pressure surge wave which damages the turbo blower machine unit (100), wherein the automatic control valve activator (232), which automatically controls the electric valve (160) in accordance with the degree of opening / closing set by the conductor, comprises the following: a first module for adjusting the automatic control valve range (233a), which adjusts the opening / closing degree of the electric valve (160) according to the duration of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range, assuming that the opening / closing degree of the electric valve (160) is 0% to 100%; a second module for setting the automatic control valve range (233b), which sets the opening / closing degree of the electric valve (160) according to the duration of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range, except for the range set by the first module for setting the automatic control valve range (233a); and a third module for setting the automatic control valve range (233c), which sets the opening / closing degree of the electric valve (160) according to the duration of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range, except for the ranges set by the first module for setting the automatic control valve range (233a) and by the second module for setting the automatic control valve range (233b), wherein an operating range is enlarged to enable operation in a pressure surge range within a range in which the turbo blower machine unit (100) is not damaged, by adjusting and controlling the opening / closing degree of the electric valve (160) according to the generation and duration of a pressure surge, wherein the turbo blower machine unit (100) is controlled to operate stably in the pressure surge range for a predetermined time, which is set in advance by a supervisor, taking into account the performance of the turbo blower machine unit (100) and the condition of a line for supplying air.

Description

Technical area

[0001] The present disclosure relates to a turbo blower capable of operating in a pressure surge range, and in particular to a turbo blower capable of operating in a pressure surge range, wherein the turbo blower increases its performance stability and efficiency by preventing a shutdown due to a temporarily generated pressure surge and by also operating in a pressure surge range for a predetermined time, in addition to a normal range in which the turbo blower normally operates. Background of the technology

[0002] A turbo blower is a device that expels air by increasing the pressure of the air drawn in from the outside by a certain range.

[0003] A pressure surge is generated when the compression ratio to the flow rate of such a turbo blower is high, which means that the rotating body of the turbo blower is running at idle, resulting in an irregular flow and an unstable condition that cannot be controlled.

[0004] The pressure surge is generated when the flow rate of the intake part, which draws in the air, is low, when the pressure of the intake part increases, when the pressure increases and the flow rate decreases, in the case that the outlet flow is suppressed by a valve, etc., as well as when its speed suddenly increases due to a malfunction of a control system.

[0005] In this way, the pressure surge generated during operation leads to fatal damage to the turbo blower. Accordingly, with a conventional turbo blower, when such a surge occurs, the system is immediately shut down and the operation of the turbo blower is stopped.

[0006] This is the most suitable method for protecting the turbo blower. However, a complete stop in the conventional turbo blower system has the problem that the operation of the turbo blower is also stopped by a temporary pressure surge, which does not represent a significant load for the turbo blower.

[0007] In this case, after stopping and stabilizing the turbo blower, it is necessary to restart the turbo blower and the system to re-supply the line with air. Therefore, difficulties arise because it is necessary to stabilize the line again.

[0008] Thus, energy and time are wasted on re-stabilizing the pipeline due to a temporary pressure surge, but this can be overcome.

[0009] Accordingly, an objective of the present invention is to provide a turbo blower device which is able to overcome a temporary pressure surge caused by various factors while maintaining the operation of the turbo blower, thereby solving the conventional problem.

[0010] Meanwhile, as prior art for a turbo blower capable of operating in a pressure surge range, “an operating control of a turbo blower” is disclosed from the Korean patent publication KR 10 2014 0 017 925 A (hereinafter referred to as “patent literature 1”).

[0011] Patent literature 1 relates to an operating control system for a turbo blower, which is capable of simplifying the detection process for pressure surges or overloads in order to simplify the control process and facilitate the performance of the corresponding tasks by an unskilled worker. The operating control system of a turbo blower comprises a pressure sensing element for detecting the differential pressure of the turbo blower by comparing the external pressure of the turbo blower with the internal pressure of the turbo blower; an airflow sensing element for converting the differential pressure of the turbo blower into the airflow of the turbo blower; and a setting element for detecting abnormalities, for recording and storing conditions for detecting a pressure surge and an overload, which are entered by a user.An airflow control unit for adjusting the airflow of the turbo blower based on the calculated airflow, for detecting the generation of a pressure surge or overload by analyzing the calculated airflow depending on the conditions for detecting a pressure surge and overload, and for immediately stopping the operation of the turbo blower when a pressure surge or overload is generated; and an airflow setting unit for determining the airflow of the turbo blower or for determining whether the turbo blower should be operated or not by controlling the operation of the turbo blower motor under control of the airflow control unit.

[0012] As further prior art, a “diffusion turbo blower” is disclosed from the Korean patent application publication KR 10 2016 0 022 061 A (hereinafter referred to as “patent literature 2”).

[0013] Patent literature 2 relates to a diffusion turbocharger blower in which the control can be simplified by a simplified method for detecting a pressure surge or overload, and in which an unskilled worker can perform the operation. The diffusion turbocharger blower comprises a pressure sensing element for detecting the differential pressure of the turbocharger blower by comparing the external pressure of the turbocharger blower with the internal pressure of the turbocharger blower; an airflow sensing element for converting the differential pressure of the turbocharger blower into the airflow of the turbocharger blower; and a setting element for detecting abnormalities and for generating and storing conditions for detecting a pressure surge and an overload, which are entered by a user.An airflow control unit for adjusting the airflow of the turbo blower based on the calculated airflow, for detecting the generation of a pressure surge or overload by analyzing the calculated airflow depending on the conditions for detecting a pressure surge and overload, and for immediately stopping the operation of the turbo blower when a pressure surge or overload is generated; and an airflow setting unit for determining the airflow of the turbo blower or for determining whether the turbo blower should be operated or not by controlling the operation of the turbo blower motor under the control of the airflow control unit.

[0014] As described above, patents 1 and 2 are in the same technical field as the present invention and disclose means and methods for dealing with the occurrence of a pressure surge. However, there is a difference with regard to the problems to be solved by the invention (subject matter of the invention).

[0015] This means that patents 1 and 2 are inventions for stopping the operation of the turbo blower in the event of a pressure surge or overload. However, there is a difference in the technical features of the present invention in order to maintain its operation within a range that does not damage the turbo blower even in the event of a pressure surge.

[0016] Further state of the art is described in the documents US 2012 / 0 121 440 A1, JP 2000 - 80 999 A, KR 10 2007 0 064 494 A and DE 100 01 365 A1. Disclosure Technical Problem

[0017] The present disclosure was made in an effort to solve the problems of the related prior art, one objective of the present disclosure being to provide a turbo blower device which operates a turbo blower in a pressure surge range for a predetermined time in addition to a normal range.

[0018] That is to say, an object of the present disclosure is to provide a turbo blower device which instantaneously enlarges and controls an operating range so that the operation of a turbo blower in a pressure surge range can transition to operation in a normal range by determining whether the turbo blower is temporarily operating in the pressure surge range, without immediately stopping the operation of the turbo blower when a pressure surge is generated.

[0019] Another objective of the present disclosure is to provide a turbo blower device which increases the performance consistency and efficiency of a turbo blower by controlling the operation of the turbo blower in a pressure surge range. Technical solution

[0020] According to one aspect of the present invention and in order to achieve these objectives, a turbo blower is provided which is capable of operating in a pressure surge range which includes: a turbo blower machine unit that increases the pressure of the outside air flowing inside and then expels the outside air; and a turbo blower control unit that drives the turbo blower machine unit, the turbo blower machine unit is also operated stably in a pressure surge range for a predetermined time.

[0021] At this moment, the turbo blower control unit contains: an inverter that supplies power to the turbo blower machine unit; a control panel that sets and monitors the real-time status of the turbo blower machine unit supplied by the inverter; a pressure surge detection driver which controls the turbo blower machine unit so that it operates stably for a predetermined time even in a pressure surge range; a data storage unit which stores data about an operating history, a pressure surge operating history and a pressure surge history of the turbo blower machine unit; and a controller that controls the inverter, the control panel, the pressure surge detection driver and the data storage unit.

[0022] As described above, the turbo blower machine unit is controlled in such a way that it also operates stably in the pressure surge range for a predetermined time, so that operation in the pressure surge range is converted into operation in the normal range.

[0023] In the meantime, it should be understood that the terminology or words used in the claims should not be interpreted in a normal or lexical sense. They should be interpreted as meanings and concepts that correspond to the technical idea of ​​the present invention, based on the principle that the inventor correctly defines the concept of the term in order to best describe his invention.

[0024] Therefore, the embodiments described in this description and the configurations shown in the drawings are only the preferred embodiments of the present invention, and not all technical ideas of the present invention are described. It should therefore be understood that various equivalents and modifications are possible. Beneficial effects

[0025] As described above with regard to configuration and operation, according to the present disclosure, the operating range of the turbo blower is extended such that the turbo blower is operated in a pressure surge range for a predetermined time in addition to a normal range.

[0026] This means that if a pressure surge is generated during the operation of the turbo blower, the operation of the turbo blower is not necessarily interrupted; in addition, it is determined whether it is a temporary operation in a pressure surge range, whereby the operation in the pressure surge range is controlled in such a way that it can be shifted to operation in the normal range, so that the operation of the turbo blower is maintained within a large operating range.

[0027] Since the operation of the turbo blower is controlled in a pressure surge range, the performance consistency and efficiency of the turbo blower are also improved.

[0028] This means that a temporary standstill of the air supplied to a duct can be prevented by a stable increase in the operating range of the turbo blower, thereby maximizing the consistency and productivity of the duct. Brief description of the drawings

[0029] The above and other objects, features and advantages of the present invention will become clearer from the following detailed description in conjunction with the accompanying drawings, in which: Fig. 1 a diagram showing the configuration of a turbo blower capable of operating in a pressure surge range of the present disclosure; Fig. 2 is a schematic diagram showing the turbo blower capable of operating in a pressure surge range of the present disclosure; Fig. 3 a schematic piping and device diagram of the turbo blower, which can be operated in a pressure surge range of the present disclosure; Fig. 4 shows a short flow diagram illustrating an operating flow of the turbo blower that can be operated in a pressure surge range of the present disclosure; and Fig. Figure 5 illustrates a performance table of an overpressure-volume flow relationship for the turbo blower, which can operate in a pressure surge range of the present disclosure.

[0030] Best execution Inventive embodiment

[0031] The following describes in detail the function, configuration and operation of a turbo blower which can be operated in a pressure surge range according to the present disclosure, with reference to the attached drawings.

[0032] Fig. Figure 1 is a diagram showing the configuration of a turbo blower that can be operated in a pressure surge range according to the present disclosure. Fig. Figure 2 is a schematic diagram showing the turbo blower that can be operated in a pressure surge range according to the present disclosure, and Fig. Figure 3 is a schematic piping and equipment diagram of the turbo blower, which can be operated in a pressure surge range according to the present disclosure.

[0033] As in the Fig. Shown 1 to 3, The present disclosure provides a turbo blower (1) which can be operated in a pressure surge environment and comprises the following: a turbo blower machine unit (100) which increases the pressure of the inward flowing outside air and then expels the outside air; and a turbo blower control unit (200) which drives the turbo blower machine unit (100), wherein the turbo blower machine unit (100) is also operated stably in a pressure surge range (SR) for a predetermined time.

[0034] This means that the present disclosure provides a turbo blower device which maximizes the consistency of the performance and efficiency of the turbo blower machine unit (100) by temporarily extending the operating range so that the turbo blower machine unit (100) can also be operated stably without stopping in a pressure surge range, as shown in the performance table with respect to the overpressure volume flow rate in Fig. 5 shown.

[0035] Upon closer examination, prior art turbo blowers stop operating despite a temporary pressure surge, which does not always damage the blower. This occurs when the blower's operation approaches a pressure surge zone (SR), resulting in an unstable airflow or flow of air supplied to a duct through the turbo blower. However, the present disclosure solves this problem of the prior art by allowing the turbo blower unit (100) to remain operational when it is detected operating within a pressure surge zone (SR) due to a temporary pressure surge. Consequently, the airflow supplied to the turbo blower (130) and a duct is stabilized, thereby maximizing the efficiency of the turbo blower (130).

[0036] This means that the operation of the turbo blower machine unit (100) in a pressure surge range (SR) due to a temporary pressure surge, which does not damage the turbo blower machine unit (100), is ready to transition to a normal range (CR). Accordingly, the turbo blower machine unit (100) can continue to operate stably without interruption even during a temporary pressure surge.

[0037] The turbo blower control unit (200), which controls the operation of the turbo blower machine unit (100) in a normal range (CR) and a pressure surge range (SR) due to a temporary pressure surge, is described in more detail.

[0038] The turbo blower control unit (200) includes: an inverter (210) which supplies power to the turbo blower machine unit (100); a control panel (220) which sets and checks a real-time status of the turbo blower machine unit (100) which is powered by the inverter (210); a pressure surge detection driver (230) which controls the turbo blower machine unit (100) so that it is operated stably for a predetermined time even in a pressure surge range (SR); a data storage unit (240) which stores data about an operating history, a pressure surge operating history (SR) and a pressure surge history of the turbo blower machine unit (100); and a controller (250) which controls the inverter (210), the control panel (220), the pressure surge detection driver (230) and the data storage unit (240).

[0039] As described above, the turbo blower machine unit (100) is controlled so that it also operates stably in the pressure surge range (SR) for a predetermined time, so that the operation in the pressure surge range (SR) is converted into the operation in the normal range (CR).

[0040] In particular, the pressure surge detection driver (230), which controls the turbo blower machine unit (100) so that it operates stably in the pressure surge range (SR) for a predetermined time, which has been set in advance by a manager, taking into account the power of the turbo blower machine unit (100) and the status of an air supply line, comprises in detail: a pressure surge range sensor unit (231) which detects whether the operating state of the turbo blower machine unit (100) is normal operation (CR) or pressure surge operation (SR); an automatic control valve activator (232) which automatically controls an electric valve (160) in accordance with the degree of opening / closing set by the conductor when the pressure surge range sensor unit (231) detects operation in the pressure surge range (SR); a pressure surge operating unit (233) which maintains the operation of the turbo blower machine unit (100) by actuating the automatic control valve activator (232); and a pressure surge operating stop (234) which interrupts the operation of the turbo blower machine unit (100) when the pressure surge operating unit (233) detects that the turbo blower machine unit (100) is being operated in the pressure surge range (SR) not by a temporary pressure surge, but by a pressure surge which damages the turbo blower machine unit (100).

[0041] The automatic control valve activator (232), which automatically controls the electric valve (160) according to the opening / closing degree set by the conductor, comprises: a first module for adjusting the automatic control valve range (233a), which adjusts the opening / closing degree of the electric valve (160) according to the propagation time of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range (SR), assuming that the opening / closing degree of the electric valve (160) is 0[%] to 100[%]; a second module for setting the automatic control valve range (233b), which sets the opening / closing degree of the electric valve (160) according to the propagation time of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range (SR), except for the range set by the first module for setting the automatic control valve range (233a); and a third module for setting the automatic control valve range (233c), which sets the opening / closing degree of the electric valve (160) according to the continuation time of a pressure surge generated in the turbo blower machine unit (100), so that the turbo blower machine unit (100) operates in the pressure surge range (SR), except for the ranges set by the first module for setting the automatic control valve range (233a) and by the second module for setting the automatic control valve range (233b).

[0042] By adjusting and controlling the opening / closing degree of the electric valve (160) depending on the generation and duration of a pressure surge, an operating range is increased so that operation in a pressure surge range (SR) is possible within a range in which the turbo blower machine unit (100) is not damaged.

[0043] In detail, for example, how in Fig. 4 shown, The range of the first module for setting the automatic control valve range (233a) is set such that the electric valve (160) opens 1[%] to 40[%] when a pressure surge lasts for 1[sec] to 5[sec], The range of the second module for setting the automatic control valve range (233b) is set such that the electric valve (160) opens 40% to 70% when a pressure surge lasts for 6 to 10 seconds, and The range of the third module for setting the automatic control valve range (233c) is set such that the electric valve (160) opens 70[%] to 100[%] when a pressure surge lasts for 10[s] to 13[s].

[0044] Accordingly, the opening / closing degree of the electric valve (160) is set for each stage of the continuation time of a pressure surge, thereby flexibly increasing the operating range so that the operation of the turbo blower machine unit (100) in the pressure surge range (SR) can transition to operation in the normal range (CR).

[0045] In this case, 0[%] means the complete closure of the electric valve (160) and 100[%] means the complete opening of the electric valve (160).

[0046] Furthermore, the turbo blower control unit (200) includes an exclusive terminal communication unit (260), which allows the operator to set operating information and check the operating status of the turbo blower machine unit (100) via an exclusive terminal (SP) through a communication network (IP), unlike the control panel (220) which is operated directly by the operator.

[0047] Accordingly, it is possible for the manager to more easily manage the turbo blower (1), which can be operated in a pressure surge area of ​​the present disclosure, and to check and adjust the status of the turbo blower machine unit (100) in real time at any time within a section connected to the communication network (IT), so that stable operation is maintained.

[0048] If the turbo blower control unit (200) also includes the exclusive terminal communication unit (260), the control unit (250) should be configured to be able to control the exclusive terminal communication unit (260).

[0049] Meanwhile, the turbo blower machine unit (100), which draws in air, increases the pressure of the air and then expels the air, comprises the following: a body casing (110) of a predetermined size in which a predetermined space is formed; an air inlet (120) which is formed on one side of the body casing (110); a turbo blower (130) which is arranged in the body housing (110) and draws in and expels air flowing into the air inlet (120); an air outlet cone pipe (140) which is coupled to the turbo blower (130) and directs the air expelled by the turbo blower (130) to the body housing (110); a turbo blower silencer (150) which suppresses and reduces the noise generated from inside the body housing (110); an electric valve (160) whose opening / closing degree is automatically controlled based on a pressure surge; and a drain valve (170) which is automatically opened / closed in accordance with the status of the turbo blower (130).

[0050] The turbo blower (130), in the broadest sense, includes: a turbo blower housing (131) with an air inlet duct (IA) and an air outlet duct (OA); an impeller (132) which draws air into the turbo blower housing (131), increases the pressure of the air and then expels the air; a turbo blower motor (133) consisting of a rotor (R) and a stator (S) that rotate the impeller (132); and a cooler (134) which prevents an increase in the internal temperature of the turbo blower housing (131).

[0051] Accordingly, energy is supplied to the air which is drawn into the air inlet channel (IA) by the rotation of the impeller (132), thereby increasing the quantity and pressure of the air and releasing the air at increased pressure into the air outlet channel (OA).

[0052] In the meantime, the operating sequence of the turbo blower (1), which can operate in a pressure surge range of the present disclosure, will be briefly described with reference to Fig.4 described.

[0053] The control panel (220) and the inverter (210) are supplied with power via a main switch (◄ S100, step of the power supply), The status of the still stopped turbo blower machine unit (100) is maintained (◄ S200, Stop step of the turbo blower machine unit), A supervisor checks the status of the turbo blower machine unit (100), which is output by the control panel (220) (◄ S300, test step of the turbo blower machine unit), the turbo blower machine unit (100) is operated (◄ S400, operating step of the turbo blower machine unit), wherein, when the turbo blower machine unit (100) operated by the conductor is operated in a normal range (CR), the open drain valve (170) is closed so that operation is maintained (◄ S500, test step for normal range operation), A change is detected when the operating range of the turbo blower machine unit (100) is changed into a pressure surge range (SR) due to a temporary load reduction (◄ S600, detection step for operation in the pressure surge range), Operation is maintained in the pressure surge range (SR) for a specified time (◄ S700, release step for operation in the pressure surge range), The electric valve (160) is automatically opened / closed within the range of 0[%] to 100[%] by the pressure surge range detection driver (230) (◄ S800, opening / closing step for the electric valve), by determining the operation of the turbo blower machine unit (100) by ascertaining whether it is operation in the pressure surge range (SR) due to a temporary pressure surge or operation in a pressure surge range which may damage the turbo blower machine unit (100), If the operation is in a pressure surge area (SR) that the pressure surge area detection driver (230) cannot control, the turbo blower machine unit (100) is stopped and the drain valve (170) is opened (◄ S900, hold step for turbo blower machine unit), and The turbo blower machine unit (100) is completely stopped to be protected from the pressure surge (◄ S1000, operating stop step).

[0054] For reference, the drain valve (170) of the components of the present disclosure is installed on the air outlet cone pipe (140) and is designed to effectively suppress the pulsation generated during operation of the turbo blower (130) and the pulsation generated during operation by higher-level processes.

[0055] This means that the drain valve (170) temporarily diverts the air drawn into the turbo blower (130) to the outside in order to prevent a backflow of air with increased pressure and an instantaneous reduction in operating efficiency (flow rate) when the air with increased pressure flows through the turbo blower (130) to the air outlet cone pipe (140), thereby diverting the air with temporarily increased pressure to the outside.

[0056] In other words, the drain valve (170) is a component which prevents a collision between the intake air and the air that is expelled after the pressure increase, which increases the time for expelling the air at increased pressure, which prevents damage to the impeller (132) of the turbo blower (130) and protects the turbo blower (130).

[0057] Furthermore, the turbo blower (130) used in the present disclosure is a device that expels air whose pressure ratio is 1.1 to less than 2.0 and whose pressure is increased in the range of 10[kPa] to 100[kPa] based on the static pressure ratios at the inlet and outlet.

[0058] Furthermore, in this disclosure, “Stop” means the state in which the turbo blower machine unit (100) is completely stopped, and “Suspension” means the state in which only the turbo blower (130) of the components of the turbo blower machine unit (100) is stopped.

[0059] When certain units are expressed in the present revelation, they are separated from numbers by square brackets.

[0060] This means that, for example, the pressure unit “kPa” is expressed as “[kPa]” so that it can be immediately recognized as a specific unit.

[0061] The status of the turbo blower machine unit (100), such as the flow rate, pressure, number of revolutions and temperature, is displayed on the control panel (220) so that a supervisor can immediately check the status.

[0062] It will be obvious to the person skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention as defined in the attached claims.

[0063] The present invention can be implemented in many different forms without any deviation from technical aspects or main features. Therefore, the embodiments of the present invention are in every respect only simple examples and are not to be interpreted restrictively. Industrial applicability

[0064] The present invention relates to a turbo blower capable of operating in a pressure surge range; it can be applied in a manufacturing plant for the production of the turbo blower and in its sales and administrative operations; and it can further contribute to improvements in various industrial fields related to the turbo blower. List of reference symbols 1 turbo blower 100 housings 120 air intake 130 turbo blowers 131 Turbo blower housing 132 wheel 133 Turbo blower motor 140 air outlet cone pipe 150 turbo blower silencers 160 electric valve 170 Drain valve 210 inverters 220 Control panel 230 Pressure surge range detection driver 231 Pressure surge range sensor unit 232 automatic control valve activator 233 Pressure surge operating unit 233a first module for setting the automatic control valve range 233b second module for setting the automatic control valve range 233c third module for setting the automatic control valve range 240 data storage units 250 control unit 260 exclusive terminal communication units S100 step of power supply S200 Stop step of the turbo blower machine unit S300 Test step of the turbo blower machine unit S400 operating step of the turbo blower machine unit S500 test step for normal operation S600 detection step for operation in the pressure surge range S700 Release step for operation in pressure surge range S800 opening / closing step for the electric valve S900 Hold Step for Turbo Blower Machine Unit S1000 Operating Stop Step R Rotor S Stator CR normal range IA Air Inlet Duct OA air outlet duct SP exclusive clamp SR pressure surge range

Claims

[1] Turbo blower capable of operating in a pressure surge range, comprising a turbo blower engine unit (100) which increases the pressure of the incoming outside air and then discharges the outside air; and a turbo blower control unit (200) which drives the turbo blower engine unit (100) so that the turbo blower engine unit (100) is operated stably for a predetermined time even in a pressure surge range (SR), wherein the turbo blower machine unit (100) which sucks in air, increases the pressure of the air and then expels the air comprises: a body casing (110) having a predetermined size and in which a predetermined space is formed; an air inlet (120) formed on one side of the body casing (110); a turbo blower (130) disposed in the body casing (110) and sucking in and expelling air flowing into the air inlet (120); an air outlet cone pipe (140) coupled to the turbo blower (130) and directing the air discharged by the turbo blower (130) to the body casing (110); a turbo blower muffler (150) which suppresses and reduces the noise generated from the interior of the body casing (110); an electric valve (160) whose opening / closing degree is automatically controlled due to a pressure surge; and a discharge valve (170) which is automatically opened / closed in accordance with the status of the turbo blower (130) and discharges air with temporarily increased pressure to the outside to prevent backflow of air with increased pressure and an instantaneous reduction in operating efficiency (flow rate) when the air with increased pressure flows through the turbo blower (130) to the air outlet cone pipe (140) which is installed on the air outlet cone pipe (140), to effectively suppress pulsation generated when the turbo blower (130) is operated and pulsation generated during operation by higher-order processes, to prevent collision of the air that is sucked in and the air that is discharged after the pressure is increased, to increase the time for discharging the air with increased pressure, and to prevent damage to an impeller (132) of the turbo blower (130),and to protect the turbo blower (130), wherein the turbo blower (130) comprises: a turbo blower housing (131) with an air inlet duct (IA) and an air outlet duct (OA); an impeller (132) which draws air into the turbo blower housing (131), increases the pressure of the air and then expels the air; a turbo blower motor (133) consisting of a rotor (R) and a stator (S) which rotate the impeller (132); and a cooler (134) which prevents an increase in the internal temperature of the turbo blower housing (131), wherein the rotation of the impeller (132) applies energy to the air sucked into the air inlet duct (IA), thereby increasing the air quantity and the air pressure and discharging the air at increased pressure into the air outlet duct (OA), wherein the turbo blower control unit (200) which controls the operation of the turbo blower machine unit (100) in a normal range (CR) and a pressure surge range (SR) due to a temporary pressure surge comprises: an inverter (210) which supplies power to the turbo blower machine unit (100); a control panel (220) which sets and checks a real-time status of the turbo blower machine unit (100) powered by the inverter (210); a surge region detection driver (230) which controls the turbo blower engine unit (100) so that it is stably operated even in a surge region (SR) for a predetermined time; a data storage unit (240) which stores data on an operating history, a pressure surge operating history (SR) and a pressure surge history of the turbo blower machine unit (100); and a control unit (250) which controls the inverter (210), the control panel (220), the pressure surge area (SR) detection driver (230) and the data storage unit (240), which controls the turbo blower machine unit (100) so that it operates stably even in the pressure surge range for a predetermined time, so that the operation in the pressure surge range (SR) is induced to operate in a normal range, wherein the pressure surge area detection driver (230) comprises: a surge range sensor unit (231) which detects whether the operating state of the turbo blower machine unit (100) is normal range operation or surge range operation; an automatic control valve activator (232) which automatically controls the electric valve (160) in accordance with the opening / closing degree set by a conductor when the surge area sensor unit (231) detects the operation in the surge area; a surge area operating unit (233) which maintains the operation of the turbo blower engine unit (100) by actuating the automatic control valve activator (232); and a pressure surge area operation stopper (234) which interrupts the operation of the turbo blower engine unit (100) when the pressure surge area operation unit (233) determines that the turbo blower engine unit (100) is operated in the pressure surge area not by a temporary pressure surge wave, but by a pressure surge wave which damages the turbo blower engine unit (100), wherein the automatic control valve activator (232) which automatically controls the electric valve (160) in accordance with the opening / closing degree set by the conductor comprises: a first automatic control valve area setting module (233a) which sets the opening / closing degree of the electric valve (160) according to the continuation time of a pressure surge generated in the turbo blower engine unit (100) so that the turbo blower engine unit (100) operates in the pressure surge area, assuming that the opening / closing degree of the electric valve (160) is 0[%] to 100[%]; a second automatic control valve range setting module (233b) which sets the opening / closing degree of the electric valve (160) according to the continuation time of a pressure surge generated in the turbo blower engine unit (100) so that the turbo blower engine unit (100) operates in the pressure surge range except for the range set by the first automatic control valve range setting module (233a); and a third automatic control valve range setting module (233c) which sets the opening / closing degree of the electric valve (160) according to the continuation time of a pressure surge generated in the turbo blower engine unit (100) so that the turbo blower engine unit (100) operates in the pressure surge range, except for the ranges set by the first automatic control valve range setting module (233a) and the second automatic control valve range setting module (233b), wherein an operation range is enlarged so that operation in a surge region is possible within a range in which the turbo blower engine unit (100) is not damaged by setting and controlling the opening / closing degree of the electric valve (160) in accordance with the generation and duration of a surge, wherein the turbo blower engine unit (100) is controlled to be stably operated in the surge region for a predetermined time set in advance by a manager, taking into account the performance of the turbo blower engine unit (100) and the state of a line for supplying air.

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