Turbomachinery installation for maximizing power generated by reversible electric machine
Patent Information
- Application Number
- CN202280036279.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-04-29
- Filing Date
- 2022-04-22
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2042-04-22
Smart Images

Figure CN117460880B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a turbomachinery device for maximizing the power generated by a reversible motor.
[0002] In particular, this disclosure relates to the structure of a turbomachinery facility including a gas turbine module, a compressor (referred to as a process compressor) and a variable frequency drive electrical unit, which in turn includes a reversible motor, wherein such a structure is designed and conceived to increase the drag torque of the reversible motor and reduce the drag torque of the compressor in such a way that the power absorbed by the compressor is as low as possible and the power generated by the reversible motor is maximized.
[0003] More specifically, the structure of such facilities is designed and conceived for mechanically driving hybrid gas turbines. Background Technology
[0004] The gas turbine hybrid power concept is suitable for mechanical drive applications of new units or as an upgrade to existing trains. It leverages the synergistic capabilities of a combination of a gas turbine and a variable frequency drive (VFD) electrical unit. The VFD electrical unit includes a reversible motor and a VFD control panel for the reversible motor.
[0005] A reversible motor can supply power to a gas turbine to function as an auxiliary device for the gas turbine, or it can absorb power from a gas turbine to function as a generator to produce power.
[0006] When the reversible motor operates as a generator and it is necessary to generate maximum power, the reversible motor's resistance torque is automatically increased via the reversible motor's VFD control panel until the compressor (i.e., the process compressor) speed decreases to a minimum value, which is essentially equal to 50% of the nominal speed of the compressor (and thus the reversible motor connected to the compressor). This minimum value represents the equilibrium point where the reversible motor generates maximum power and the compressor absorbs "minimum power".
[0007] However, although the compressor speed is reduced and the amount of power absorbed by the compressor is considered to be minimal, the value of this power is still quite large and is essentially equal to 10% of the nominal value of the power absorbed by the compressor itself.
[0008] Therefore, the amount of power absorbed by the compressor affects the maximum power that can be generated by the reversible motor. In fact, if the power supplied by the gas turbine is equal to the sum of the power absorbed by the compressor and the power generated by the reversible motor, then the greater the power absorbed by the compressor, the lower the power generated by the reversible motor.
[0009] Therefore, turbomachinery installations conceived to maximize the power generated by reversible motors and minimize the power absorbed by compressors are welcomed in turbomachinery technology, especially when mechanically driven gas turbines are used in turbomachinery installations. Summary of the Invention
[0010] In one aspect, the subject matter disclosed herein relates to a turbomachinery apparatus comprising a variable frequency drive electrical unit and a compressor, an anti-surge circuit, a suction unit, and a collection unit connected to a reversible motor.
[0011] The variable frequency drive electrical unit includes a reversible motor capable of supplying power.
[0012] The compressor is connected to a reversible motor.
[0013] A first pipeline connects the suction unit to the compressor, and a second pipeline connects the compressor to the gas collection unit. A first isolation valve is located on the first pipeline, and a second isolation valve is located on the second pipeline.
[0014] The anti-surge circuit includes a third pipeline connecting the first pipeline to the second pipeline and an anti-surge valve disposed on the third pipeline.
[0015] The turbomachinery includes a gas pressure reducing compressor having an inlet and an outlet. The gas pressure reducing compressor is configured to draw in a quantity of gas through the inlet, reduce the pressure of that gas, and discharge that gas through the outlet. A fourth line connects the second line to the inlet of the gas pressure reducing compressor, and a first on / off valve is arranged on this fourth line and is movable between an open state to allow a quantity of gas to flow toward the gas pressure reducing compressor, and a closed state to prevent a quantity of gas from flowing toward the gas pressure reducing compressor.
[0016] The central control unit is connected to the first isolation valve and the second isolation valve, the anti-surge valve, and the first on / off valve, and is configured to: close the first isolation valve and the second isolation valve and open the anti-surge valve, so that a certain amount of gas flows essentially only in the anti-surge circuit; and open the first on / off valve and activate the gas pressure reducing compressor, so that a certain amount of gas drawn in by the gas pressure reducing compressor moves from the anti-surge circuit to the gas pressure reducing compressor, which encounters less resistance and absorbs less power when rotating, and maximizes the power generated by the reversible motor.
[0017] In another aspect of the invention, the anti-surge circuit may include a cooler device, and a central control unit is connected to and configured to activate the cooler device. The cooler device may be configured and sized to dissipate a predetermined amount of heat when the compressor is in use.
[0018] In another aspect of the invention, the turbomachinery includes: a first control valve disposed on a sixth line connecting a first line to a third line and movable between an open state and a closed state, the open state allowing a certain amount of gas to be transferred from the suction unit to the compressor, and the closed state preventing a certain amount of gas from being transferred from the suction unit to the compressor; and a second control valve disposed on a seventh line connecting the outlet of a gas pressure reducing compressor to the second line and movable between an open state and a closed state allowing a certain amount of gas to be transferred from the compressor to a collection unit, and the closed state preventing a certain amount of gas from being transferred from the compressor to the collection unit.
[0019] The temperature measurement and control device is connected to a third line between the cooler equipment and the compressor inlet, and is configured to measure and control the temperature value related to the amount of gas in the anti-surge circuit.
[0020] The central control unit is connected to the first control valve and the second control valve, and to the first temperature measuring and control device and the storage device, and is configured to: store a predetermined temperature value in the storage device; acquire a temperature value from the temperature measuring and control device; and when the temperature value measured by the temperature measuring and control device is greater than the predetermined temperature value, adjust the opening of the first control valve and the opening of the second control valve in such a way that a first quantity of gas with a first temperature enters the anti-surge circuit through the first control valve, and a second quantity of gas with a second temperature leaves the anti-surge circuit, enters the gas pressure reducing compressor, leaves the gas pressure reducing compressor, and reaches the second pipeline through the second control valve. The second quantity of gas is equal to the first quantity of gas, and the second temperature is greater than the first temperature.
[0021] The present invention also relates to a method for maximizing the power generated by a reversible motor in a turbomachinery system. Specifically, the method includes the steps of: closing a first isolation valve and a second isolation valve and opening an anti-surge valve, such that a certain amount of gas flows substantially only in the anti-surge circuit; and opening a first on / off valve and activating a gas pressure-reducing compressor, such that a certain amount of gas drawn into the gas pressure-reducing compressor moves from the anti-surge circuit to the gas pressure-reducing compressor, which encounters less resistance and absorbs less power during rotation, thereby maximizing the power generated by the reversible motor. Attached Figure Description
[0022] When considered in conjunction with the accompanying drawings, the embodiments disclosed in this invention and their many accompanying advantages will become better understood by referring to the following detailed description, thereby readily providing a more comprehensive understanding of them, wherein:
[0023] Figure 1A schematic diagram of a turbomachinery facility according to a first embodiment is shown;
[0024] Figure 2 A schematic diagram of a turbomachinery facility according to a second embodiment is shown;
[0025] Figure 3 A flowchart is shown for a method to maximize the power generated by a reversible motor by reducing the power absorbed by a compressor connected to the reversible motor. Detailed Implementation
[0026] In the field of power production, turbomachinery facilities typically include a gas turbine, a compressor (referred to as a process compressor), and a reversible motor capable of supplying power to function as an auxiliary device to the gas turbine or absorbing power to function as a generator. This disclosure relates to the case where the reversible motor operates as a generator to produce the maximum power required by demand. Since the compressor also absorbs a certain amount of power when its speed reaches its minimum, this amount of power must be reduced as much as possible to maximize the power generated by the reversible motor.
[0027] Therefore, this subject matter relates to a turbomachinery apparatus configured to maximize the power generated by a reversible motor by significantly reducing the power absorbed by a compressor connected to the reversible motor. The power absorbed by this compressor is reduced by approximately an order of magnitude compared to the power absorbed by a compressor in a known type of turbomachinery apparatus.
[0028] In particular, the structure of the turbomachinery is designed and conceived to essentially create a "vacuum condition" for the compressor, causing it to absorb less power due to less resistance. In this way, the power generated by the reversible motor can be maximized.
[0029] As a result of this, the rotational speed of the reversible motor can be increased, thereby increasing the power supply capacity of the reversible motor.
[0030] Now refer to the attached diagram, especially Figure 1 This illustrates a first embodiment of a turbomachinery device according to the present invention.
[0031] The turbomachinery facility includes: a gas turbine module 10, which includes a gas turbine 1; a variable frequency drive electrical unit 2, which includes a reversible motor 21 capable of supplying power; and a compressor 3 (referred to as a process compressor), which is connected to the reversible motor 21 and the gas turbine module 10.
[0032] Specifically, compressor 3 has an inlet 31 and an outlet 32.
[0033] Furthermore, the suction unit SU is connected to the inlet 31 of the compressor 3 via a first pipeline L1, and the collection unit CU is connected to the outlet 32 of the compressor 3 via a second pipeline L2.
[0034] The turbomachinery facility includes: a first isolation valve SV1 disposed on a first pipeline L1 and a second isolation valve SV2 disposed on a second pipeline L2, and an anti-surge circuit AC, which includes a third pipeline L3 connecting the first pipeline L1 to the second pipeline L2 and an anti-surge valve AV disposed on the third pipeline L3.
[0035] The first isolation valve SV1 can move between an open state and a closed state. In the open state, the first isolation valve allows a certain amount of gas to be transferred from the suction unit SU to the compressor 3. In the closed state, the first isolation valve prevents a certain amount of gas from being transferred from the suction unit SU to the compressor 3.
[0036] The second isolation valve SV2 can move between an open state and a closed state. In the open state, the second isolation valve allows a certain amount of gas to be transferred from the compressor 3 to the collection unit CU. In the closed state, the second isolation valve prevents a certain amount of gas from being transferred from the compressor 3 to the collection unit CU.
[0037] Specifically, the turbomachinery facility includes:
[0038] - Gas pressure reducing compressor 5, which has an inlet 51 and an outlet 52, and is configured to draw in a certain amount of gas through the inlet 51, reduce the pressure of the gas, and discharge the gas through the outlet 52;
[0039] - Fourth line L4, which connects the second line L2 to the inlet 51 of the gas pressure reducing compressor 5, so that the gas pressure reducing compressor 5 is connected to the anti-surge circuit AC.
[0040] - A first on / off valve V1 is arranged on the fourth pipeline L4 and is movable between an open state and a closed state. The open state is to allow a certain amount of gas to be delivered to the gas pressure compressor 5, and the closed state is to prevent a certain amount of gas from being delivered to the gas pressure compressor 5.
[0041] In addition, the turbomachinery facility includes a central control unit 7, which is connected to a first isolation valve SV1 and a second isolation valve SV2, an anti-surge valve AV, and a first on / off valve V1, and is configured as follows:
[0042] Close the first isolation valve SV1 and the second isolation valve SV2 and open the anti-surge valve AV, so that a certain amount of gas flows essentially only in the anti-surge circuit AC; and
[0043] The first on / off valve V1 is opened and the gas pressure reducing compressor 5 is activated, so that a certain amount of gas drawn in by the gas pressure reducing compressor 5 moves from the anti-surge circuit AC to the gas pressure reducing compressor 5, and the compressor 3 encounters less resistance and absorbs less power when rotating, while the power generated by the reversible motor 21 is maximized.
[0044] Advantageously, the rotational speed of the reversible motor 21 can be increased, enabling the reversible motor 21 to supply more power than the reversible motors of known types of turbomachinery.
[0045] The central control unit 7 can be a programmable controller, which can be implemented by a microprocessor or PLC along with I / O modules.
[0046] Gas drawn in by the gas pressure reducing compressor 5 is discharged on a fifth line L5, which has a first end connected to the outlet 52 of the gas pressure reducing compressor 5. In the disclosed embodiment, a second end of the fifth line L5 is connected to a first line L1, opposite to the first end. Therefore, a portion of the gas discharged from the gas pressure reducing compressor 5 tends to return to the suction unit SU.
[0047] However, it is not necessary for the outlet 52 of the gas pressure reducing compressor 5 to be connected to the first pipeline L1. For example, the gas discharged from the gas pressure reducing compressor 5 may be dispersed in the environment or directed to another part of the turbomachinery facility, such as to a ventilation manifold or gas handling system.
[0048] Regarding the gas pressure reducing compressor 5, the gas pressure reducing compressor 5 is equipped with a regulating device for regulating the flow rate of the gas pressure reducing compressor itself.
[0049] like Figure 1 As shown, the central control unit 7 can be connected to the gas pressure reducing compressor 5 and is configured to control the regulating device of the gas pressure reducing compressor 5 so that the gas pressure reducing compressor 5 absorbs as little power as possible.
[0050] In particular, such regulating devices may include at least one valve (preferably two valves) arranged on one or more corresponding cylinders included in the gas pressure reducing compressor 5, and the central control unit 7 is configured to control the flow rate of the gas pressure reducing compressor 5 by adjusting the opening of the valve.
[0051] In addition, alternatively or in combination with one or more valves arranged on the respective cylinders, such regulating devices may include electrical devices (e.g., VFD electric motors) or mechanical devices (e.g., variable ratio gearboxes) for changing the revolutions per minute of the gas pressure compressor 5, and the central control unit 7 is configured to control the flow rate of the gas pressure compressor by increasing / decreasing the revolutions per minute using electrical or mechanical devices.
[0052] In the first disclosed embodiment, the gas pressure reducing compressor 5 is a positive displacement machine.
[0053] In addition, such as Figure 1 As shown, the anti-surge circuit AC may include a cooler device 4 to cool the gas flowing in the third line L3 of the anti-surge circuit AC. The cooler device 4 is provided with a ventilation device 41 including one or more blades.
[0054] The central control unit 7 is connected to the cooler device 4 and is configured to activate the cooler device 4.
[0055] Specifically, the central control unit 7 is configured to adjust the speed of the blades by means of a motor included in the cooler device 4, wherein the motor is connected to the ventilation device 41.
[0056] The motor can be a multi-pole motor that includes one or more pole pairs or a VFD electric motor.
[0057] Alternatively, the central control unit 7 may be configured to regulate the blade speed by changing a value associated with the blade pitch angle over time, which is achieved by means of a hydraulic, electric, pneumatic, or electromechanical actuator included in the cooler device 4. In the disclosed first embodiment, the actuator is an electric actuator.
[0058] The cooler device 4 can be constructed and sized as needed (i.e., according to the heat to be dissipated when the compressor 3 is in use).
[0059] Therefore, the cooler device 4 is configured to dissipate a predetermined amount of heat when the compressor 3 is in use.
[0060] Figure 2 A second implementation scheme for a turbomachinery facility is shown.
[0061] In the second embodiment, unlike the first embodiment, the turbomachinery facility also includes:
[0062] - The sixth pipeline L6 connects the first pipeline L1 to the third pipeline L3;
[0063] - First control valve FV1, which is arranged on the sixth pipeline L6;
[0064] - Seventh line L7, which connects the outlet 52 of the gas pressure reducing compressor 5 to the second line L2;
[0065] - Second control valve FV2, which is arranged on the seventh pipeline L7;
[0066] - Temperature measurement and control device D1, which is configured to measure and control the temperature value related to the amount of gas in the anti-surge circuit AC.
[0067] The first control valve FV1 can move between an open state and a closed state. In the open state, the first control valve allows a certain amount of gas to be transferred from the suction unit SU to the anti-surge circuit AC. In the closed state, the first control valve prevents a certain amount of gas from being transferred from the suction unit SU to the anti-surge circuit AC.
[0068] The second control valve FV2 can move between an open state and a closed state. In the open state, the second control valve allows a certain amount of gas to be delivered from the gas pressure compressor 5 to the second pipeline L2. In the closed state, the second control valve prevents a certain amount of gas from being delivered from the gas pressure compressor 5 to the second pipeline L2.
[0069] Depending on the opening degree of each control valve FV1 and FV2, the corresponding gas flow rate at the valve outlet can change.
[0070] Temperature measurement and control device D1 is connected to the third pipeline L3 between cooler device 4 and inlet 31 of compressor 3.
[0071] Furthermore, the turbomachinery includes a storage device 8 (such as a memory) for storing data, and a central control unit 7 is connected to a first control valve FV1, a second control valve FV2, a temperature measurement and control device D1, and the storage device 8, and is configured as follows:
[0072] The predetermined temperature value is stored in storage device 8;
[0073] Obtain temperature values from temperature measurement and control device D1; and
[0074] When the temperature value measured by the temperature measuring and control device D1 is greater than the predetermined temperature value, the opening of the first control valve FV1 and the opening of the second control valve FV2 are adjusted in such a way that a certain amount of gas with a first temperature enters the anti-surge circuit AC through the first control valve FV1, and a second amount of gas with a second temperature leaves the anti-surge circuit AC, enters the gas pressure reducing compressor 5, leaves the gas pressure reducing compressor 5, and reaches the second pipeline L2 through the second control valve FV2, wherein the second amount of gas is equal to the first amount of gas and the second temperature is greater than the first temperature.
[0075] In other words, a certain amount of hot gas leaves the anti-surge circuit AC, and the same amount of fresh gas enters the anti-surge circuit AC.
[0076] In the disclosed embodiments, the central control unit 7 includes a storage device 8. However, without departing from the scope of the invention, the storage device 8 may be located outside the central control unit 7.
[0077] In order to improve the control of the opening degree of the first control valve FV1 and the second control valve FV2 based on the gas temperature value, the gas pressure can be controlled to verify that the gas pressure value is equal to the predetermined gas pressure value.
[0078] For this purpose, the turbomachinery facility also includes a pressure measurement and control device D2, which is configured to measure and control pressure values related to the gas in the anti-surge circuit AC, and a central control unit 7 is connected to the pressure measurement and control device D2 and is configured as follows:
[0079] The predetermined pressure value is stored in storage device 8;
[0080] Obtain the pressure value from pressure measurement and control device D2;
[0081] Verify that the pressure value measured by the pressure measuring and control device D2 is equal to the predetermined pressure value; and
[0082] If the pressure value is not equal to the predetermined pressure value, the opening of the first control valve FV1 and the opening of the second control valve FV2 are adjusted so that the pressure value of the gas in the anti-surge circuit AC tends to be equal to the predetermined pressure value.
[0083] The pressure measuring and control device D2 is connected to the third line L3 of the anti-surge circuit AC between the cooler device 4 and the inlet 31 of the compressor 3. However, without departing from the scope of the invention, the pressure measuring and control device D2 may be connected to the third line L3 between the outlet 32 of the compressor 3 and the cooler device 4.
[0084] In the second embodiment, a second on / off valve V2 is arranged on the fifth pipeline L5. This second on / off valve V2 is movable between an open state to allow a certain amount of gas discharged from the gas pressure reducing compressor 5 (i.e., a second amount of gas with a second temperature) to flow in the fifth pipeline L5, and a closed state to prevent the flow of the same amount of gas discharged from the gas pressure reducing compressor in the fifth pipeline L5. A central control unit 8 is connected to the second on / off valve V2 and configured to close the second on / off valve V2 when adjusting the opening of the first control valve FV1 and the second control valve FV2, and to open the second on / off valve V2 when the anti-surge circuit AC is to be purged.
[0085] In the disclosed second embodiment, as already described with respect to the first embodiment, the second end of the fifth pipeline L5 is connected to the first pipeline L1. Therefore, when the second on / off valve V2 is in the open state, it allows a certain amount of gas discharged from the gas pressure reducing compressor 5 to reach the first pipeline L1, and when the second on / off valve V2 is in the closed state, it prevents a certain amount of gas discharged from the gas pressure reducing compressor 5 from reaching the first pipeline L1.
[0086] Referring to each of the above-disclosed embodiments, the compressor 3 is arranged between the gas turbine 10 of the gas turbine module 1 and the variable frequency drive unit 2, and the compressor 3 is preferably connected to the gas turbine 10 by means of a self-synchronizing clutch 13.
[0087] A method for maximizing the power generated by a reversible motor in a turbomachinery device disclosed above, comprising the following steps:
[0088] Close the first isolation valve SV1 and the second isolation valve SV2 and open the anti-surge valve AV, so that a certain amount of gas flows essentially only in the anti-surge circuit AC; and
[0089] Open the first on / off valve V1 (103) and activate the gas pressure reducing compressor 5 (104), so that a certain amount of gas drawn in by the gas pressure reducing compressor 5 moves from the anti-surge circuit AC to the gas pressure reducing compressor 5. When the compressor 3 rotates, it encounters less resistance and absorbs less power, while maximizing the power generated by the reversible motor 21.
[0090] The advantage of this technical solution is that it maximizes the power generated by the reversible motor 2 when it operates as a generator to produce power. Given the same total power of the gas turbine 1, the power absorbed by the compressor 3 is less than the power absorbed by the compressor included in a known type of turbomachinery facility; therefore, the power generated by the reversible motor 2 is maximized. Furthermore, it is therefore possible to increase the rotational speed of the reversible motor 2 to increase its power supply capability.
[0091] Furthermore, due to the increased rotational speed of the reversible motor, a second advantage is that the rotational speed of the gas turbine can also be increased, thus allowing for a higher turbine speed and improved efficiency. In fact, the gas turbine efficiency is improved by a percentage between 2% and 4%.
[0092] The third advantage is that the power generated by the reversible motor can be maximized by leveraging a technological solution with low manufacturing costs in terms of available advantages. Therefore, the operating and capital expenditures of this technological solution are reduced compared to known types of turbomachinery facilities.
[0093] Another advantage is the possibility of using mechanically driven hybrid gas turbines.
[0094] While various aspects of the invention have been described with reference to specific embodiments, it will be apparent to those skilled in the art that numerous modifications, variations, and omissions are possible without departing from the spirit and scope of the claims. Furthermore, unless otherwise specified herein, the order or sequence of any process or method steps may be altered or reordered according to alternative embodiments.
[0095] Reference has been made in detail to embodiments of this disclosure, one or more of which are illustrated in the accompanying drawings. Each example is provided by way of explanation and not limitation of this disclosure. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from its scope or spirit. Throughout this specification, references to “one embodiment”, “implementation”, or “some embodiments” mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the disclosed subject matter. Therefore, the phrases “in one embodiment”, “in an embodiment”, or “in some embodiments” appearing in various places throughout this specification do not necessarily refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.
[0096] When describing the elements of various implementation schemes, the articles “a,” “an,” “the,” and “the” are intended to mean one or more of the elements present. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that additional elements may exist in addition to the listed elements.
Claims
1. A turbomachinery facility, the turbomachinery facility comprising: The variable frequency drive electrical unit (2) includes a reversible motor (21) capable of supplying power. Compressor (3), which is connected to the reversible motor (21); Suction unit (SU); The first pipeline (L1) connects the suction unit (SU) to the compressor (3). The first isolation valve (SV1) is arranged on the first pipeline (L1); Gas collection unit (CU); The second pipeline (L2) connects the compressor (3) to the gas collection unit (CU). The second isolation valve (SV2) is located on the second pipeline (L2); An anti-surge circuit (AC) includes a third line (L3) connecting the first line (L1) to the second line (L2) and an anti-surge valve (AV) disposed on the third line (L3). Its features The turbomachinery facility also includes: A gas pressure reducing compressor (5) has an inlet (51) and an outlet (52) and is configured to draw in a certain amount of gas through the inlet (51), reduce the pressure of the gas, and discharge the gas through the outlet (52); The fourth pipeline (L4) connects the second pipeline (L2) to the inlet (51) of the gas pressure compressor (5). A first on / off valve (V1) is arranged on the fourth pipeline (L4) and is movable between an open state and a closed state. The open state is for allowing a certain amount of gas to be delivered toward the gas pressure compressor (5), and the closed state is for preventing a certain amount of gas from being delivered toward the gas pressure compressor (5). A central control unit (7) is connected to the first isolation valve (SV1) and the second isolation valve (SV2), the anti-surge valve (AV), and the first on / off valve (V1), and is configured as follows: Close the first isolation valve (SV1) and the second isolation valve (SV2) and The anti-surge valve (AV) is opened so that a certain amount of gas flows essentially only in the anti-surge circuit (AC); and the first on / off valve (V1) is opened and the gas pressure compressor (5) is activated so that a certain amount of gas drawn in by the gas pressure compressor (5) moves from the anti-surge circuit (AC) to the gas pressure compressor (5), the compressor (3) encounters less resistance and absorbs less power when rotating, and the power generated by the reversible motor (21) is maximized.
2. The turbomachinery facility of claim 1, wherein the anti-surge circuit (AC) includes a cooler device (4), and the central control unit (7) is connected to the cooler device (4) and configured to activate the cooler device (4).
3. The turbomachinery facility according to claim 2, wherein the cooler device (4) is provided with a ventilation device (41) including one or more blades, and the central control unit (7) is configured to regulate the speed of the blades by means of a motor included in the cooler device (4), wherein the motor is connected to the ventilation device (41).
4. The turbomachinery apparatus of claim 3, wherein the motor is a multi-pole motor comprising one or more pole pairs or a VFD electric motor.
5. The turbomachinery facility according to claim 2, wherein the cooler device (4) is provided with a ventilation device (41) including one or more blades, and the central control unit (7) is configured to adjust the speed of the blades by changing a value associated with the pitch angle of the blades, which is achieved by means of a hydraulic, pneumatic or electric or mechanical or electromechanical actuator included in the cooler device (4).
6. The turbomachinery apparatus according to any one of claims 2 to 5, wherein the cooler device (4) is configured and sized to dissipate a predetermined amount of heat.
7. The turbomachinery facility according to any one of claims 2 to 6, wherein the turbomachinery facility further comprises: The sixth pipeline (L6) connects the first pipeline (L1) to the third pipeline (L3). A first control valve (FV1) is arranged on the sixth pipeline (L6) and is movable between an open state and a closed state. The open state allows a certain amount of gas to be transferred from the suction unit (SU) to the compressor (3), and the closed state prevents a certain amount of gas from being transferred from the suction unit (SU) to the compressor (3). The seventh line (L7) connects the outlet (52) of the gas pressure compressor (5) to the second line (L2). The second control valve (FV2) is arranged on the seventh pipeline (L7) and is movable between an open state and a closed state, wherein the open state is for allowing a certain amount of gas to be delivered from the compressor (3) to the collection unit (CU), and the closed state is for preventing a certain amount of gas from being delivered from the compressor (3) to the collection unit (CU). A temperature measuring and control device (D1) configured to measure and control the temperature value relating to the amount of gas in the anti-surge circuit (AC), the temperature measuring and control device (D1) being connected to the third pipeline (L3) between the cooler device (4) and the inlet (31) of the compressor (3). Storage device (8), the storage device being used to store data; in The central control unit (7) is connected to the first control valve (FV1), the second control valve (FV2), the temperature measurement and control device (D1), and the storage device (8), and is configured as follows: A predetermined temperature value is stored in the storage device (8); The temperature value is obtained from the temperature measuring and control device (D1); as well as When the temperature value measured by the temperature measuring and control device (D1) is greater than the predetermined temperature value, the opening of the first control valve (FV1) and the opening of the second control valve (FV2) are adjusted in such a way that... A first amount of gas with a first temperature enters the anti-surge circuit (AC) through the first control valve (FV1), and a second amount of gas with a second temperature leaves the anti-surge circuit (AC), enters the gas pressure reducing compressor (5), leaves the gas pressure reducing compressor (5), and reaches the second pipeline (L2) through the second control valve (FV2), wherein the second amount of gas is equal to the first amount of gas and the second temperature is greater than the first temperature.
8. The turbomachinery facility of claim 7, wherein the turbomachinery facility further comprises: A pressure measuring and control device (D2), configured to measure and control pressure values related to the gas in the anti-surge circuit (AC), is connected to the third pipeline (L3). in The central control unit (7) is connected to the pressure measurement and control device (D2) and is configured such that: A predetermined pressure value is stored in the storage device (8); The pressure value is obtained from the pressure measuring and control device (D2); Verify that the pressure value measured by the pressure measuring and control device (D2) is equal to the predetermined pressure value; If the pressure value is not equal to the predetermined pressure value, the opening of the first control valve (FV1) and the opening of the second control valve (FV2) are adjusted so that the pressure value of the gas in the anti-surge circuit (AC) tends to be equal to the predetermined pressure value.
9. The turbomachinery facility according to claim 7 or 8, wherein The turbomachinery facilities include: The fifth pipeline (L5) has a first end connected to the outlet (52) of the gas pressure reducing compressor (5); A second on / off valve (V2) is arranged on the fifth pipeline (L5) and is movable between an open state and a closed state, wherein the open state is for allowing a certain amount of gas discharged from the gas pressure compressor (5) to flow in the fifth pipeline (L5), and the closed state is for preventing a certain amount of gas discharged from the gas pressure compressor (5) from flowing in the fifth pipeline (L5). in The central control unit (7) is connected to the second on / off valve (V2) and is configured such that: When the opening degree of the first control valve (FV1) and the opening degree of the second control valve (FV2) are adjusted, the second on / off valve (V2) is closed; and When the anti-surge circuit (AC) is to be emptied, the second on / off valve (V2) is opened.
10. The turbomachinery facility according to claim 9, wherein the fifth pipeline (L5) has a second end connected to the first pipeline (L1), the second end being opposite to the first end, and when the second on / off valve (V2) is in the open state, the second on / off valve (V2) allows a certain amount of gas discharged from the gas pressure reducing compressor (5) to reach the first pipeline (L1), and when the second on / off valve (V2) is in the closed state, the second on / off valve prevents a certain amount of gas discharged from the gas pressure reducing compressor (5) from reaching the first pipeline (L1).
11. The turbomachinery apparatus according to any one of claims 1 to 10, wherein the gas pressure reducing compressor (5) is provided with a regulating device for regulating the flow rate and / or revolutions per minute of the gas pressure reducing compressor itself, and the central control unit (7) is connected to the gas pressure reducing compressor (5) and is configured to control the regulating device of the gas pressure reducing compressor (5) such that the gas pressure reducing compressor (5) absorbs as little power as possible.
12. The turbomachinery apparatus of claim 11, wherein the regulating device comprises at least one valve disposed on one or more corresponding cylinders included in the gas pressure reducing compressor (5), and the central control unit (7) is configured to control the flow rate of the gas pressure reducing compressor (5) by adjusting the opening of the valve.
13. The turbomachinery facility according to claim 11 or 12, wherein the regulating device comprises electrical or mechanical equipment for changing the revolutions per minute of the gas pressure compressor (5), and the central control unit (7) is configured to control the flow rate of the gas pressure compressor (5) by increasing / decreasing the revolutions per minute using the electrical or mechanical equipment.
14. The turbomachinery facility according to any one of claims 1 to 11, wherein the turbomachinery facility comprises a gas turbine module (1), the gas turbine module comprises a gas turbine (10), and the compressor (3) is arranged between the gas turbine module (1) and the variable frequency drive unit (2).
15. The turbomachinery facility according to claim 14, wherein the compressor (3) is connected to the gas turbine (10) by means of a self-synchronizing clutch (13).
16. A method for maximizing the power generated by a reversible motor (21) of a turbomachinery, wherein the turbomachinery comprises: Compressor (3), the compressor being connected to the reversible motor (21); suction unit (SU); A first pipeline (L1) connects the suction unit (SU) to the compressor (3); a first isolation valve (SV1) is disposed on the first pipeline (L1); Gas collection unit (CU); second line (L2) connecting the compressor (3) to the gas collection unit (CU); second isolation valve (SV2) disposed on the second line (L2); anti-surge circuit (AC) including a third line (L3) connecting the first line (L1) to the second line (L2) and an anti-surge valve (AV) disposed on the third line (L3); gas pressure reducing compressor (5) having an inlet (51) and an outlet (52) and configured to draw in a certain amount of gas through the inlet (51), reduce the pressure of the amount of gas, and discharge the amount of gas through the outlet (52); fourth line (L4) connecting the second line (L2) to the inlet (51) of the gas pressure reducing compressor (5). A first on / off valve (V1), which is arranged on the fourth pipeline (L4) and is movable between an open state and a closed state, wherein the open state is for allowing a certain amount of gas to be delivered toward the gas pressure compressor (5) and the closed state is for preventing a certain amount of gas from being delivered toward the gas pressure compressor (5), the method comprising the following steps: (101) Close (101) the first isolation valve (SV1) and the second isolation valve (SV2) and open (102) the anti-surge valve (AV) so that a certain amount of gas flows essentially only in the anti-surge circuit (AC); and open (103) the first on / off valve (V1) and activate (104) the gas pressure reducing compressor (5) so that a certain amount of gas drawn in by the gas pressure reducing compressor (5) moves from the anti-surge circuit (AC) to the gas pressure reducing compressor (5), the compressor (3) encounters less resistance and absorbs less power when rotating, and the power generated by the reversible motor (21) is maximized.
Citation Information
Patent Citations
Turbomachine Anti-surge system
CN108291553A
Turbocompressor and its operation method
CN1650105A