CN104654535A - Turbo type flow control device - Google Patents

Abstract

The turbine-type flow control device of the present invention controls the actual flow without using a spool, thereby saving electricity. When controlling the actual flow rate, part of the energy wasted as heat is recovered as electric energy, and energy is reused to contribute to energy saving. The turbine flow control device is provided with a power generation part (306) and a turbine (308). The power generation unit (306) has a rotor (6) and a stator (7). The rotor (6) has a ring (6-1) equipped with permanent magnets, and an impeller (6-2) integrally provided inside the ring (6). The impeller (6-2) of the rotor (6) is used as a turbine (308). The actual flow rate of the fluid flowing through the flow path is estimated from the current angular velocity of the turbine (308) and the current torque of the power generation unit (306) by taking the set flow rate whose value changes according to the load fluctuation of the fluid supply object as an input, and using The torque of the power generating unit (306) is controlled such that the estimated actual flow rate matches the set flow rate.

Description

Turbine Flow Control Device

technical field

The present invention relates to a turbine-type flow control device that uses a turbine to control the flow of fluid.

Background technique

Conventionally, an air-conditioning control system includes an air conditioner such as a fan coil unit (FCU), and supplies hot and cold water to a heat exchanger of the air conditioner. A flow control valve is provided on a supply path of hot and cold water leading to a heat exchanger of the air conditioner, and an air conditioning control device (controller) is provided as a device for controlling the opening of the flow control valve.

The air conditioner control device controls the opening degree of the flow control valve so that the deviation between the measured value of the indoor temperature of the control object space and the set value of the indoor temperature set for the indoor temperature becomes zero. The space is supplied with conditioned air from an air conditioner. Thereby, the supply amount of hot and cold water to the heat exchanger of the air conditioner is controlled, and the temperature of conditioned air from the air conditioner to the space to be controlled is adjusted (for example, refer to Patent Document 1).

prior art literature

patent documents

Patent Document 1 Japanese Unexamined Patent Application Publication No. 2008-45855

Patent Document 2 Japanese Patent Laid-Open No. 2012-241659

Patent Document 3 Japanese Patent Application Laid-Open No. 5-106753

Contents of the invention

The problem to be solved by the invention

However, in the above-mentioned air conditioning control system, the flow control valve installed in the hot and cold water supply passage changes the opening area of a plug provided as a valve element in the flow passage to cause a pressure loss, thereby realizing flow control. The energy equivalent to the pressure loss generated at this time is wasted as heat. Also, there is a problem that a large power is required to drive the spool.

In addition, Patent Document 2 discloses a power generation device using residual pressure of a water system facility that generates power while reducing the pressure of tap water in a water supply line. The power generation device using residual pressure in this waterway facility has a water turbine installed in a water supply line through which tap water flows, and a generator that generates electricity through the rotation of the water turbine. The rotational resistance of the water turbine generated by the power generation load of the generator to reduce the pressure on the downstream side of the turbine.

In this patent document 2, as Embodiment 2, the technique which controls the torque of a generator so that the flow rate of a water turbine may become a target flow rate is shown. Hereinafter, this technique is referred to as the technique of Patent Document 2.

Specifically, the angular velocity of the water turbine is detected, the estimated flow rate of the water turbine is calculated according to the angular velocity and torque command value of the water turbine, the decompression amount is estimated according to the estimated flow rate, and the pressure reduction amount used to achieve the target flow rate is calculated based on the estimated decompression amount. Take the difference between the estimated flow rate and the target flow rate, add the feedback item of the flow rate to the torque command value, take the difference between the target angular velocity and the angular velocity, add the feedback item of the angular velocity to the torque command value, and add the flow rate and The torque command value of the feedback term of the angular velocity is output to the inverter (refer to the descriptions in paragraphs [0043] to [0049] of Cited Document 2, FIG. 7 , FIG. 8 , etc.).

In the technique disclosed in this patent document 2, the target flow rate is a target value corresponding to the target decompression amount (the pressure difference between the upstream side and the downstream side of the water turbine), and it is set to be determined according to the waterworks facility like the target decompression amount. specified value.

That is, in the technique disclosed in Patent Document 2, the torque of the generator is controlled on the premise that the value of the target flow rate remains constant, so that the estimated flow rate matches the target flow rate determined as the constant value. That is, in Patent Document 2, the actual flow rate is controlled without considering changing the value of the target flow rate, and only the residual pressure of the waterworks facility is used to generate electric energy.

In addition, Patent Document 3 discloses a valve with a built-in power generating device, which includes: a power generating device having a rotor arranged in a valve box of the valve, rotating by fluid energy when the valve body is opened, and a A generator that generates electricity by the rotation of the rotor; a power storage device that stores power generated by the power generation device; a motor that is started using the output voltage of the power storage device; and a power transmission mechanism that transmits the rotational output of the motor to the valve stem , The built-in valve of the power generating device is provided with an on-off device for selecting the forward and reverse rotation and stop of the electric motor and making it run on the circuit connecting the electric storage device and the electric motor.

The power generator built-in valve shown in this patent document 3 separates the "power generator" composed of the rotor and the generator from the "valve device" that controls the flow and shutoff of the fluid, so there are many components. Furthermore, the flow direction of the fluid is enlarged. In addition, in the cited document 3, it is not considered to change the value of the target flow rate to control the actual flow rate, but to use the fluid energy generated when the valve core is opened to automatically open and close the valve core to reduce energy loss. In addition, although the spool can be automatically opened and closed using generated power, a large power is required because the spool is used.

The present invention was made in order to solve such a problem, and an object of the present invention is to provide a turbine-type flow rate control device capable of saving power by controlling an actual flow rate without using a spool.

In addition, there is provided a turbine-type flow control device capable of recovering a part of the energy wasted as heat generation as electric energy when controlling the actual flow rate, achieving reuse of energy, and contributing to energy saving.

means of solving problems

In order to achieve such an object, the turbine type flow control device of the present invention is characterized in that it has: a turbine that converts the energy of the fluid flowing through the flow path into rotational motion energy; converts the rotational motion energy converted by the turbine into Electric energy generation part; set flow input part, the set flow part inputs the set flow, and the value of the set flow changes according to the load change of the fluid supply object; the flow control part, the flow control part according to The current angular velocity of the turbine and the current torque of the power generation unit are used to estimate the actual flow rate of the fluid flowing through the flow path, and the torque of the power generation unit that makes the estimated actual flow rate consistent with the set flow rate is calculated; the power generation unit, the power generation unit Based on the torque calculated by the flow control unit, the torque of the power generation unit is controlled (claim 1).

According to the present invention, once the set flow rate changes according to the load fluctuation of the fluid supply object, the actual flow rate of the fluid flowing through the flow path is estimated based on the current angular velocity of the turbine and the current torque of the power generation unit, and the torque of the power generation unit is controlled. , so that the estimated actual flow is consistent with the set flow. Therefore, in the present invention, the flow rate of the fluid flowing through the flow path is controlled not by the spool but by the torque of the power generating unit 306 , that is, the rotational torque of the turbine 308 .

In the present invention, it is further provided: a power storage unit that stores the electric energy converted by the power generation unit as stored power; and a power supply unit that uses the stored power stored in the power storage unit as a turbine flow rate The electric power used in the control device is distributed (technical solution 2). Thus, the electric energy converted by the power generation unit is stored in the power storage unit as stored power, that is, the energy of the fluid converted into rotational motion energy by the turbine is further converted into electric energy by the power generation unit and stored in the storage unit as stored power. In the electric unit, the stored electric power stored in the electric storage unit is distributed as electric power used in the turbine flow control device.

In the present invention, the power supply unit distributes the stored electric power stored in the storage unit as the power used in the turbine flow control device, but if the stored power stored in the storage unit can be fully supplied to itself If it works, it is ideal. However, even in a completely ideal situation, there are cases where the stored power cannot be supplied. Assuming such a situation, in the present invention, when the power stored in the power storage unit is insufficient, the power combined with the power supplied from the external power source is distributed as the power used in the turbine flow control device, When the stored electric power stored in the power storage unit is surplus, the surplus electric power is regenerated to the commercial power supply as surplus electric power (claim 3).

In the present invention, data from the outside including the set flow rate may be received by either wired or wireless. In addition, regeneration of surplus power to a commercial power supply and power supply from an external power supply may be performed either by wire or wirelessly (claims 4 to 7). If the reception of data from the outside including the set flow rate, the regeneration of surplus power to a commercial power supply, and the supply of power from an external power supply are all performed wirelessly, the wiring to the turbine flow control device can be completely eliminated. In addition, if all the stored electric power stored in the electric storage unit is used for its own operation, the supply of external electric power to the turbine flow control device can be stopped, and complete wireless can be realized.

Invention effect

According to the present invention, the turbine that converts the energy of the fluid flowing through the flow path into rotational motion energy, and the power generation unit that converts the rotational motion energy converted by the turbine into electrical energy are provided, and the value is changed according to the load fluctuation of the fluid supply target. The changing set flow rate is used as an input, and the actual flow rate of the fluid flowing through the flow path is estimated according to the current angular velocity of the turbine and the current torque of the power generation unit, and the torque of the power generation unit is controlled so that the estimated actual flow rate is consistent with the set flow rate, Therefore, the actual flow rate can be controlled without using a spool, and power saving can be achieved. In addition, when controlling the actual flow rate, it is possible to recover a part of the energy wasted as heat generation as electric energy, to recycle the energy, and to contribute to energy saving. In addition, two functions of flow rate control and power generation can be realized by the "power generation device" composed of the turbine and the power generation unit, and the number of components can be reduced to achieve miniaturization.

Description of drawings

FIG. 1 is an instrument diagram showing an embodiment of an air-conditioning control system using a turbine-type flow rate control device according to the present invention.

FIG. 2 is a structural diagram of key components of the first embodiment (Embodiment 1) of the turbine flow control device used in the air-conditioning control system.

Fig. 3 is a perspective view extracting and showing key components of a power generation unit in the turbine flow control device.

Fig. 4 is a perspective view showing a rotor provided in a pipeline of the turbine flow control device.

FIG. 5 is a structural diagram of key components of a turbine flow control device according to Embodiment 2. FIG.

FIG. 6 is a structural diagram of key components of a turbine flow control device according to Embodiment 3. FIG.

FIG. 7 is a structural diagram of key components of a turbine flow control device according to Embodiment 4. FIG.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is an instrument diagram showing an embodiment of an air-conditioning control system using a turbine-type flow rate control device according to the present invention.

In FIG. 1 , 1 is a space to be controlled, 2 is an air conditioner (FCU) that supplies conditioned air to the space 1 to be controlled, 3 is a turbine-type flow control device according to the present invention, and 4 is an air-conditioning control device (controller). device), 5 is an external power supply provided for the turbine flow control device 3.

The air conditioner 2 has a heat exchanger (cold and hot water coil) 2-1 and a fan 2-2. The turbine flow control device 3 is provided in a supply path (flow path) of hot and cold water leading to the heat exchanger 2 - 1 of the air conditioner 2 . In this example, the turbine flow control device 3 is provided in the return line LR of cold and hot water returning from the heat exchanger 2 - 1 of the air conditioner 2 .

In addition, as the heat exchanger 2-1 of the air conditioner 2, there are a single-coil type heat exchanger and a double-coil type heat exchanger, and the single-coil type heat exchanger utilizes one coil. In the case of air-conditioning equipment, it is used as cold water for heat exchange, and in the case of heating equipment, it is used as hot water for heat exchange. The heat exchanger of the double-coil type uses two coils, and in the case of air-conditioning equipment, heat is exchanged through the cold water coil. When it is a heating device, the heat is exchanged through the hot water coil. In this example, heat exchanger 2-1 is a single coil type.

In the space to be controlled 1 , an indoor temperature sensor 5 that measures the temperature in the space to be controlled 1 as the indoor temperature is installed. The indoor temperature (detection value tpv of the indoor temperature) measured by the indoor temperature sensor 5 is sent to the controller 4 .

The controller 4 makes the deviation between the detected value tpv of the indoor temperature and the set value tsp of the indoor temperature zero as a control output, and controls the set flow rate Qsp of cold and hot water leading to the heat exchanger 2-1 of the air conditioner 2. calculation, and send the calculated set flow rate Qsp to the turbine flow control device 3 .

[Turbine Flow Control Device: Embodiment 1]

FIG. 2 shows a configuration diagram of key components of the first embodiment (Embodiment 1) of the turbine flow control device 3 . The turbine-type flow control device 3 (3A) of Embodiment 1 includes a data communication unit 301, a system control unit 302, a flow control unit 303, a power generation unit control unit 304, an inverter 305, a power generation unit 306, a position sensor 307, a turbine 308 , the power supply unit 309 , the commercial power regeneration unit 310 and the power storage unit 311 are wired to the controller 4 and the external power supply 5 .

The data communication unit 301 has a function of transmitting and receiving data with the controller 4 , receives data such as setting values from the controller 4 , and transmits data such as the internal state of the turbine flow control device 3 to the controller 4 .

The system control unit 302 has a function of controlling the entire system of the turbine flow control device 3, and receives data such as setting values from the data communication unit 301, and outputs transmission data such as the internal state of the turbine flow control device 3. to the data communication unit 301. Furthermore, based on received data such as a set value from the data communication unit 301 , a set flow rate Qsp is selected as a flow rate set value, and the selected flow rate set value Qsp is output to the flow rate control unit 303 .

The flow control unit 303 has the function of estimating the dimensionless flow rate and the dimensionless differential pressure according to the angular velocity value (the current angular velocity of the turbine 308) ω and the torque value (the current torque of the power generation unit 306) T from the power generation unit control unit 304; The estimated dimensionless flow rate and dimensionless pressure difference are used to estimate the actual flow Q and actual pressure difference ΔP; the torque of the power generation unit 306 that makes the estimated actual flow Q consistent with the flow set value Qsp is controlled by the flow control rule. Calculation, as a function of the torque setting value Tsp, the flow control unit 303 inputs the flow setting value Qsp from the system control unit 302, the angular velocity value ω and the torque value T from the power generation unit control unit 304, and the calculated The torque set value Tsp is output to the power generation unit control unit 304 .

The power generation unit control unit 304 has the function of: calculating the phase voltage setting value to the inverter 305 according to the torque control rule, so that the torque of the power generation unit 306 becomes the torque setting value Tsp; The current angular velocity of the turbine 308 is calculated based on the magnetic pole position of the rotor of the power generating unit 306 as a function of the angular velocity value ω; according to the current phase voltage value and phase current value of the stator winding of the power generating unit 306 from the inverter 305, The current torque of the power generation unit 306 is calculated as the torque value T, and the power generation unit control unit 304 inputs the magnetic pole position detected by the position sensor 307, the phase voltage value and the phase current value from the inverter 305, and the flow rate control unit. The torque setting value Tsp of the unit 302 outputs the calculated angular velocity value ω and torque value T to the flow rate control unit 303 , and outputs the calculated phase voltage setting value to the inverter 305 .

The inverter 305 has the function of inputting the phase voltage set value from the power generation unit control unit 304 and outputting the phase voltage set value to the stator winding of the power generation unit 306 ; For the regenerative function, the inverter 305 receives the main power from the power supply unit 309 to operate.

The power generation unit 306 has a rotor 6 and a stator 7 as extracted and shown in FIG. 3 as key components. The rotor 6 has a ring 6 - 1 equipped with permanent magnets, and an impeller 6 - 2 integrally provided inside the ring 6 . The rotor 6 is installed in the pipeline so that its axis coincides with the axis of the pipeline (see FIG. 4 ), and is integrally rotated by receiving the flow of hot and cold water flowing through the pipeline. That is, the ring 6-1 rotates integrally with the impeller 6-2. In FIG. 2 , for the sake of convenience, the impeller 6 - 2 is shown as the turbine 308 separately from the power generation unit 306 .

Coils are wound around the stator 7 , and the coils are used as stator windings to obtain electric power generated by the rotation of the rotor 6 . In addition, a position sensor 307 is attached to the stator 7 and detects the magnetic pole position of the permanent magnet incorporated in the ring 6 - 1 as the magnetic pole position of the rotor 6 . In this example, a Hall IC is used as the position sensor 307 .

The power supply unit 309 receives electric power from the external power supply 5 and electric power stored in the power storage unit 311 and distributes it as electric power used in the turbine flow control device 3A. In this example, the power to the inverter 305 is used as the main power supply, and the power to the data communication unit 301, system control unit 302, flow control unit 303, power generation unit control unit 304, etc. is used as each control unit power supply.

The power supply unit 309 combines and distributes the electric power from the external power supply 5 and the electric power stored in the power storage unit 311 , and distributes the electric power stored in the power storage unit 311 with priority. Here, when the stored electric power stored in power storage unit 311 is insufficient, the electric power combined with the electric power supplied from external power supply 5 is distributed, and the stored electric power stored in power storage unit 311 may be surplus. Next, the remaining electric power is regenerated to the commercial power supply (external power supply 5 in this example) as surplus power by the commercial power regeneration unit 310 .

In this turbine flow control device 3A, the functions of the data communication unit 301, the system control unit 302, the flow control unit 303, the power generation unit control unit 304, the inverter 305, the power supply unit 309, the commercial power regeneration unit 310, etc. Hardware consisting of a processor, a storage device, a digital input/output circuit, an analog input/output circuit, a power electronic circuit, and the like, and a program for realizing various functions in cooperation with the hardware are realized.

Next, the characteristic operation of the turbine flow control device 3A will be described. If the set flow rate Qsp of the hot and cold water from the controller 4 changes, that is, if the set flow rate Qsp of the cold and hot water changes according to the load fluctuation of the supply object of the cold and hot water, the turbine flow control device 3A communicates with the data communication unit 301 Receiving the changed set flow rate Qsp, the data communication unit 301 transmits the received set flow rate Qsp to the system control unit 302 .

The system control unit 302 selects the set flow rate Qsp as the set flow rate value Qsp, and sends it to the flow rate control unit 303 . The flow control unit 303 estimates the dimensionless flow rate and the dimensionless differential pressure based on the angular velocity value (the current angular velocity of the turbine 308) ω and the torque value (the current torque of the power generation unit 306) T from the power generation unit control unit 304, and based on the estimated Dimensionless flow rate and dimensionless pressure difference, estimate actual flow rate and actual pressure difference. Then, a torque set value Tsp for matching the estimated actual flow rate with the flow rate set value Qsp is calculated and sent to the power generation unit control unit 304 .

The power generation unit control unit 304 receives the torque set value Tsp from the system control unit 302 , calculates the phase voltage set value that makes the torque of the power generation unit 306 equal to the torque set value Tsp, and sends it to the inverter 305 . The inverter 305 receives the phase voltage set value from the power generation unit control unit 304 and outputs the phase voltage set value to the stator winding of the power generation unit 306 . As a result, the torque of the power generating unit 306 is matched to the torque setting value Tsp, and the actual flow rate of the hot and cold water flowing through the pipeline is adjusted to the flow rate setting value Qsp.

Thus, according to the present embodiment, the flow rate of the fluid flowing through the pipeline is controlled not by the spool but by the torque of the power generating unit 306 , that is, the rotational torque of the turbine 308 . Therefore, power saving can be achieved without requiring a large power as in the case of driving the spool.

Also, in the present embodiment, the electric power generated by the power generation unit 306 is stored in the power storage unit 311 and sent to the power supply unit 309 as stored power to be used in each unit in the turbine flow control device 3 . Accordingly, when the actual flow rate is controlled, part of the energy wasted as heat is recovered as electric energy and reused in the turbine flow control device 3 . In addition, in this embodiment, when the stored power stored in the power storage unit 311 remains, the remaining power is regenerated to the commercial power supply as surplus power, so the surplus power in the turbine flow control device 3 is also be used effectively. For example, if surplus electric power is supplied to other devices such as sensors and controllers, it is possible to comprehensively contribute to energy saving.

Also, according to the present embodiment, since the two functions of flow rate control and power generation can be realized in the "power generation device" composed of the turbine 308 and the power generation part 306, that is, the rotor 6 and the stator 7 shown in FIG. Both functions of flow rate control and power generation can be realized in the "power generation device", so there is no "valve device" as shown in Patent Document 3, and components can be reduced to achieve miniaturization. Accordingly, the turbine flow control device can be configured with the size of the current flow control valve, and energy saving can be achieved by replacing the existing flow control valve with the turbine flow control device.

Also, in this embodiment, based on the current angular velocity ω of the turbine 308 and the current torque value T of the power generation unit 306, the actual flow rate of hot and cold water flowing through the pipeline is estimated, and the torque of the power generation unit 306 is controlled so that the estimated actual flow rate Since it matches the flow rate setting value Qsp, expensive sensors such as pressure sensors and flow sensors can be eliminated, and cost increases can be suppressed.

[Turbine Flow Control Device: Embodiment 2]

In the turbine flow control device 3A of Embodiment 1, a wired connection is made to the controller 4 , but a wireless connection may be made to the controller 4 . In FIG. 5 , the configuration of key components of a turbine flow control device 3 ( 3B) wirelessly connected to the controller 4 is shown as Embodiment 2. In FIG.

In FIG. 5 , the same symbols as those in FIG. 2 denote the same or equivalent members as those described with reference to FIG. 2 , and the description thereof will be omitted. In this turbine flow control device 3B, a wireless data communication unit 312 is provided instead of the data communication unit 301 , and data is transmitted and received to and from the controller 4 wirelessly through an antenna 313 .

[Turbine Flow Control Device: Embodiment 3]

In the turbine-type flow control device 3A of Embodiment 1, a wired connection is made to the external power supply 5 , but a wireless connection to the external power supply 5 may also be used. In FIG. 6 , the structure of key components of a turbine flow control device 3 ( 3C ) wirelessly connected to an external power supply 5 is shown as Embodiment 3. As shown in FIG.

In FIG. 6 , the same reference numerals as in FIG. 2 denote the same or equivalent members as those described with reference to FIG. 2 , and the description thereof will be omitted. In this turbine flow control device 3C, instead of the commercial power regeneration unit 310, a wireless power transmission and reception unit 314 is provided, and wirelessly receives power from the external power supply 5 through the antenna 315 and transmits it to the power supply unit 309. The surplus electric power of 1 is regenerated in a commercial power supply (in this example, the external power supply 5) in a wireless manner.

[Turbine Flow Control Device: Embodiment 4]

In the turbine-type flow control device 3A of Embodiment 1, both the controller 4 and the external power supply 5 are connected by wire, but wireless connections may be made between the controller 4 and the external power supply 5. connect. In FIG. 7 , the configuration of key components of a turbine flow control device 3 ( 3D ) wirelessly connected both to the controller 4 and to the external power source 5 is shown as Embodiment 4.

In FIG. 7 , the same reference numerals as those in FIG. 2 denote the same or equivalent members as those described with reference to FIG. 2 , and the description thereof will be omitted. In this turbine flow control device 3D, a wireless data communication unit 312 is provided instead of the data communication unit 301 , and data is transmitted and received to and from the controller 4 wirelessly through an antenna 316 . Also, instead of the commercial power regeneration unit 310, a wireless power transmission and reception unit 314 is provided to wirelessly receive the power from the external power supply 5 through the antenna 316 and transmit it to the power supply unit 309, and transmit the surplus power from the power supply unit 309 to the power supply unit 309 through the antenna 316 in a wireless manner. Mode regeneration to a commercial power supply (in this example, the external power supply 5).

Since the turbine flow control device 3D is wirelessly connected to the controller 4 and to the external power supply 5, no wiring to the turbine flow control device 3D can be used at all. As a result, by eliminating the use of wiring materials, improving constructability/maintenance, eliminating the need for wiring man-hours, reducing work-hours in harsh environments, and reducing work-hours for additional instruments in existing buildings, etc., wireless The resulting contribution to the reduction of the environmental load is expected.

In addition, the wireless connection between the external power supply 5 can be achieved by making the turbine flow control device 3D a hybrid type using the power from the external power supply 5 and the power generated by the power generation unit 306, so that the power from the external power supply 5 due to a reduction in supply.

In the existing flow control valve (valve using a spool), it is conceivable to be completely wireless by using a battery, but it is considered difficult to realize the long-term drive of the flow control valve using a battery because it cannot be driven. That is, it is necessary to solve various problems such as low power consumption of control circuits and communication circuits, low period of communication frequency, and high-density electrification of storage batteries. It is difficult to realize complete wireless operation in conventional flow control valves.

On the other hand, in this embodiment, by making a hybrid type of electric power from the outside and electric power generated internally, it is possible to realize the complete wirelessization of the flow control valve, which has been difficult to achieve until now, and it can be said that it is an epoch-making device that has not been done so far. . In the present invention, since no spool is used, it is not called a flow control valve, but a turbine flow control device. In addition, in the present invention, if all the electric power generated internally is supplied to its own operation, the supply of external electric power to the turbine flow control device can be eliminated, and complete wireless can be realized.

In addition, although the above-mentioned embodiment is described as an example used in an air-conditioning control system, it is obviously not limited to an air-conditioning control system. The above-mentioned embodiment can be applied to various flow control applications, and can be further extended to general industrial equipment can also be applied in . Also, the fluid for controlling the flow rate is not limited to liquids such as hot and cold water, and may be gases such as gas.

[Expansion of Embodiment]

As mentioned above, although this invention was demonstrated with reference to embodiment, this invention is not limited to the said embodiment. A person skilled in the art can make various understandable changes to the structure and details of the present invention within the scope of the technical idea of the present invention.

Explanation of symbols

1: Control object space, 2: Air conditioner (FCU), 3 (3A～3D): Turbine flow control device, 4: Air conditioning control device (controller), LR: Return water pipeline, 301: Data communication department, 302 : System control part, 303: Flow control part, 304: Power generation control part, 305: Inverter, 306: Power generation part, 6: Rotor, 6-1: Ring, 6-2: Impeller, 7: Stator, 307 : Position sensor, 308: Turbine, 309: Power supply unit, 310: Commercial power regeneration unit, 311: Power storage unit, 312: Wireless data communication unit, 314: Wireless power transmission and reception unit, 313, 315, 316: Antenna.

Claims (7)

1. a turbine type flow control device, is characterized in that, has:

Turbine, the power conversion flowing through the fluid of stream is rotary motion energy by described turbine;

Power Generation Section, the rotary motion power conversion that turbine is changed by described Power Generation Section is electric energy;

Setting flow input part, described setting flow input part input setting flow, the value of described setting flow changes according to the load change of the supply object of described fluid;

Flow-control portion, the actual flow of the fluid flowing through described stream is estimated according to the current torque of the current angular velocity of described turbine and described Power Generation Section by described flow-control portion, calculates the moment of torsion of the actual flow making this estimated described Power Generation Section consistent with described setting flow; And

Power Generation Section, the moment of torsion that described Power Generation Section calculates based on described flow-control portion, controls the moment of torsion of described Power Generation Section.

2. turbine type flow control device according to claim 1, is characterized in that having:

Reserve Power Division, the electric energy savings that described Power Generation Section is changed by described Reserve Power Division is electric power storage electric power; And

Power supply unit, the electric power that the electric power storage electric power put aside in described Reserve Power Division uses in described turbine type flow control device distributes by described power supply unit.

3. turbine type flow control device according to claim 2, is characterized in that,

In the hypodynamic situation of electric power storage electricity that described power supply unit is put aside in described Reserve Power Division, the electric power that the electric power converged with the electric power supplied from external power source uses in described turbine type flow control device is distributed, in the remaining situation of electric power storage electric power that described Reserve Power Division is put aside, the electric power of this remainder is regenerated commercial power source as dump power.

4. turbine type flow control device according to claim 3, is characterized in that,

Have data reception portion, described data reception portion receives the data from outside comprising described setting flow,

Described data reception portion by the data of cable network reception from described outside,

Described power supply unit carries out the regeneration of described dump power to source power supply by wired, and is supplied by the electric power of cable network reception from described external power source.

5. turbine type flow control device according to claim 3, is characterized in that,

Have data reception portion, described data reception portion receives the data from outside comprising described setting flow,

Described data reception portion by the data of wireless receiving from described outside,

Described power supply unit carries out the regeneration of described dump power to source power supply by wired, and is supplied by the electric power of cable network reception from described external power source.

6. turbine type flow control device according to claim 3, is characterized in that,

Have data reception portion, described data reception portion receives the data from outside comprising described setting flow,

Described data reception portion by the data of cable network reception from described outside,

Described power supply unit carries out the regeneration of described dump power to source power supply by wireless, and is supplied by the electric power of wireless receiving from described external power source.

7. turbine type flow control device according to claim 3, is characterized in that,

Have data reception portion, described data reception portion receives the data from outside comprising described setting flow,

Described data reception portion by the data of wireless receiving from described outside,

Described power supply unit carries out the regeneration of described dump power to source power supply by wireless, and is supplied by the electric power of wireless receiving from described external power source.