JP2012007833A - Air conditioner group controller and air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner group controller and an air conditioning system for improving comfort during air conditioning in the whole space to be air-conditioned, while preventing an increase in the number of components and the number of construction steps.SOLUTION: An integrated air conditioning controller 30 includes: a GHP command part 32 which transmits a GHP command to a gas heat pump type air conditioner 10 which air-conditions a part of a single space S to be air-conditioned; an EHP command part 33 which transmits an EHP command to an electric air conditioner 20 which air-conditions the other part of the space S to be air-conditioned; a balance determination part 31 which determines a balance between the air-conditioning output of the air conditioner 10 and the air-conditioning output of the air conditioner 20 according to a fluctuation of air-conditioning load, for generating the GHP command and EHP command; and an external apparatus command part 34 which transmits an open-degree command to dampers D1-D3 of an air circulation system 40 which generates an air stream in the space S to be air-conditioned according to the balance between the air-conditioning output of the air conditioner 10 and the air-conditioning output of the air conditioner 20.

Description

  The present invention relates to an air conditioner group control device and an air conditioning system.

  Conventionally, as an air conditioning system, what was described, for example in patent documents 1 is known. This air conditioning system includes an electric heat pump (hereinafter also referred to as EHP) type air conditioner using an electric motor as a driving source and a gas heat pump (hereinafter also referred to as GHP) type air conditioner using a gas engine. I have. Then, the general air conditioning controller determines the air conditioning balance between these EHP and GHP air conditioners according to the fluctuation of the air conditioning load, and generates a control command to each air conditioner based on the air conditioning balance. And GHP type air conditioner is optimally controlled as a whole. That is, the general air-conditioning controller includes an EHP command unit that sends a control command to the EHP air conditioner, a GHP command unit that sends a control command to the GHP air conditioner, and EHP and GHP type air according to load fluctuations. And a balance determination unit that determines the balance of the harmony machine. Thereby, when the air conditioning of a single air-conditioned space involves both EHP and GHP type air conditioners, the general air conditioning controller optimally controls these air conditioners as a whole, for example, a gas engine This makes it possible to extend the service life and level the power consumption (equalization).

  In addition, the air conditioning system described in Patent Document 2 is designed to reduce the maintenance frequency of the gas engine and extend the life of the EHP type air conditioner and GHP type air conditioner. This reduces the total cost of the burden. That is, the centralized controller of the air conditioning system includes target operation time calculation means, schedule creation means, and operation control means. The centralized controller calculates the target operating time of the GHP type air conditioner based on the operating life and the target operating years of the gas engine in the target operating time calculating means, and the operating schedule based on the target operating time and the air conditioning time zone in the schedule generating means. Create Then, the central controller controls the operation of the EHP and GHP type air conditioners based on the operation schedule in the operation control means, thereby limiting the operation time of the gas engine, for example, and reducing the maintenance frequency of the gas engine.

  Furthermore, when the air conditioning system described in Patent Document 3 involves both EHP and GHP type air conditioners in the air conditioning of a single air-conditioned space, these air conditioners are adapted to customer requirements. Are collectively controlled. That is, the centralized controller of the air conditioning system includes information storage means, air conditioning load pattern derivation means, input means, and optimum control pattern derivation means. In the air conditioning load pattern deriving unit, the centralized controller derives the air conditioning load pattern based on the outside air temperature data of the corresponding area possessed by the information storage unit and the customer information of the corresponding area input from the input unit. Further, the centralized controller receives the air-conditioning load pattern, the electric / gas charge data of the corresponding area possessed by the information storage means, the capacity data of the EHP / GHP air conditioner, and the input means in the optimum control pattern deriving means. The optimal control pattern is derived based on the customer requests. The centralized controller controls the operation of the EHP and GHP type air conditioners based on the optimum control pattern, thereby suppressing, for example, the maximum demand value (maximum demand power for determining the basic charge for the next year) or maintenance. Reduce costs or reduce energy costs.

JP 2007-187342 A JP 2009-14246 A JP 2009-41801 A

By the way, in the air conditioning systems described in Patent Documents 1 to 3, although it is possible to control EHP and GHP type air conditioners in accordance with each purpose, EHP and GHP type are used to achieve the corresponding purpose. By increasing the air conditioning output of one of the air conditioners and suppressing the air conditioning output of either air conditioner, the air conditioning output becomes unbalanced between these EHP and GHP air conditioners. Comfort may be compromised. This is because, in a single air-conditioned space, even if the air conditioning output of the entire EHP and GHP air conditioners is secured according to the air conditioning load, the air conditioning shared by the EHP air conditioners (indoor units) This is because the air conditioning output is different between the area and the air conditioning area shared by the GHP air conditioner (indoor unit).

FIG. 8 is a graph showing an example of the balance (distribution) of the air conditioning output by the GHP air conditioner and the air conditioning output by the EHP air conditioner with respect to the air conditioning load. As shown in the figure, in a state where the air conditioning load is small, the air conditioning output of only the EHP type air conditioner is considered in consideration of high efficiency at a low load. However, when the air conditioning load is large, the air conditioning output of the EHP air conditioner is suppressed to a certain level (for example, the target value of the maximum demand value) in order to reduce the contract power, and the air conditioning output of the GHP air conditioner Begins to increase. When the air conditioning load exceeds a predetermined value K (%), the air conditioning output of the GHP air conditioner is larger than the air conditioning output of the EHP air conditioner. That is, the magnitude relationship of the air conditioning output by the GHP air conditioner and the air conditioning output by the EHP air conditioner is reversed starting from the air conditioning load of the predetermined value K (%).

  Therefore, for example, in Patent Document 1, as shown in FIG. 9, if the air conditioning output of the EHP air conditioner 80 becomes smaller than the air conditioning output of the GHP air conditioner 90 during the cooling operation, the EHP air conditioner In the area A80 in the vicinity of the 80 indoor units 81, the air conditioning output is insufficient with respect to the air conditioning load and the temperature becomes high. On the contrary, in the area A90 in the vicinity of the indoor unit 91 of the GHP air conditioner 90, the air conditioning output is applied to the air conditioning load. Excessive temperature decreases. In other words, the overall air conditioning controller 100 controls the EHP and GHP air conditioners 80 and 90 so that the sum of the air conditioning outputs matches the air conditioning load in the entire room (the air-conditioned space S). Although being controlled, the air conditioning output is excessive or deficient in the portion of the room, and the original comfort of air conditioning is impaired.

  On the other hand, in order to avoid such a problem, a small output indoor unit 81, 91 is selected and a large number of indoor units 81, 91 are installed. For example, as shown in FIG. It is possible to arrange these indoor units 81 and 91 alternately as indoor units 81 and 91 of EHP and GHP type air conditioners (so-called checkered arrangement). In this case, the large number of indoor units 81 and 91 can suppress variations in the temperature of the air-conditioned space S due to the imbalance of the air-conditioning output. However, another problem arises that the increase in the number of indoor units 81 and 91 and the associated equipment cost increase, the increase in refrigerant piping and control wiring, and the associated construction cost increase.

  In Patent Document 1, after the conditioned air supplied from the EHP air conditioner 80 and the conditioned air supplied from the GHP air conditioner 90 are merged, the air conditioned air is supplied through a common outlet. Sending to the air-conditioned space S is also proposed. As a result, deterioration of air conditioning comfort can be suppressed, but both EHP and GHP type air conditioners 80 and 90 are required for each outlet, so that equipment cost increases and construction can be performed according to the above. You will be forced to increase costs.

  The objective of this invention is providing the air conditioner group control apparatus and air conditioning system which can improve the comfort of air conditioning over the whole air-conditioned space, suppressing the increase in a number of parts and construction man-hours. is there.

  In order to solve the above problems, the invention according to claim 1 is directed to a first command for sending a first control command to a gas heat pump type first air conditioner that performs air conditioning of a part of a single air-conditioned space. A second command unit that sends a second control command to an electric second air conditioner that performs air conditioning of the other part of the air-conditioned space, and air conditioning by the first air conditioner according to fluctuations in the air conditioning load A balance determining unit that determines a balance between an output and an air-conditioning output from the second air conditioner, and generates the first control command and the second control command; an air-conditioning output from the first air conditioner and the second air conditioning The gist of the present invention is that it includes an external device command unit that sends an external device control command to an external device that generates airflow in the air-conditioned space according to the balance of the air conditioning output by the machine.

  According to a second aspect of the present invention, in the air conditioner group control device according to the first aspect, the external device is an air supply system that forms a flow path of air supplied to the air-conditioned space, and the air-conditioned space It is at least one of a return air system for forming a return air flow path and a circulator for stirring the air in the air-conditioned space.

  According to a third aspect of the present invention, in the air conditioner group control device according to the first aspect, the indoor unit of the first air conditioner includes a plurality of first air outlets for blowing air conditioned to the air-conditioned space. The indoor unit of the second air conditioner includes a plurality of second air outlets that blow out air conditioned in the air-conditioned space, and the external device includes the outlet positions of the plurality of first air outlets and the plurality of air outlets. The gist is that it is a blowing system for switching the blowing position of the second blowing outlet.

  According to each said structure, the balance determination part determines the balance of the air-conditioning output by the said 1st air conditioner and the air-conditioning output by the said 2nd air conditioner according to the fluctuation | variation of an air-conditioning load, Based on this, the said 1st One control command and the second control command are generated. The first command command is sent to the first air conditioner by the first command unit, and the second control command is sent to the second air conditioner by the second command unit. The first air conditioner and the second air conditioner are controlled (overall control) so as to obtain a necessary air conditioning output as a whole of the air conditioned space. At this time, the air conditioning output by the first air conditioner and the air conditioning output by the second air conditioner may become unbalanced, but the external device control command is sent to the external device by the external device command unit. Thus, the airflow generated in the air-conditioned space is controlled. Therefore, the air conditioning output of a part of the air-conditioned space shared by the first air conditioner and the air conditioning output of the other part of the air-conditioned space shared by the second air conditioner are suppressed so as to suppress the imbalance. The airflow (external device) generated in the air-conditioned space can be controlled, and the comfort of air conditioning can be improved. Moreover, since the said external apparatus which is the existing installation essential for the air conditioning of the said to-be-air-conditioned space is utilized, the increase in a number of parts and a construction man-hour can be suppressed.

  Invention of Claim 4 is the air conditioner group control apparatus as described in any one of Claims 1-3. WHEREIN: The said external apparatus instruction | command part is said 1st air conditioner as said external apparatus control instruction | command. The gist is to send at least one of a state command indicating a balance state of the air conditioning output by the second air conditioner and a state command indicating the balance state amount.

  According to this configuration, when the external device command unit sends the state command as the external device control command to the external device, the air conditioner (the first air conditioner or the second air conditioner) having a relatively small air conditioning output. It is only necessary to switch and control the external device so that the airflow in the portion of the air-conditioned space shared by the air conditioner), and the calculation load can be reduced. On the other hand, when the external device command section sends the state quantity command as the external device control command to the external device, air in a state where the air conditioning output is relatively small based on the deviation of the air conditioning output between the air conditioners. The external device can be continuously controlled so that the air flow in the portion of the air-conditioned space shared by the air conditioner (the first air conditioner or the second air conditioner) is promoted, and the air flow is more precise. Can be controlled.

  The invention according to claim 5 is a gas heat pump type first air conditioner that performs air conditioning of a part of a single air-conditioned space, and electric second air that performs air conditioning of the other part of the air-conditioned space. In an air conditioning system, comprising: a conditioner; a control unit that performs overall control of the first air conditioner and the second air conditioner; and an external device that generates an air flow in the air-conditioned space. A first command unit that sends a first control command to the first air conditioner, a second command unit that sends a second control command to the second air conditioner, and the first air conditioner according to fluctuations in the air conditioning load A balance determining unit that determines a balance between the air conditioning output by the second air conditioner and the air conditioning output by the second air conditioner, and generates the first control command and the second control command; the air conditioning output by the first air conditioner and the second air According to the balance of air conditioning output by the harmony machine , And summarized in that with an external device instruction unit for sending an external device control command to the external device.

  According to this configuration, it is possible to provide an air conditioning system that can improve the comfort of air conditioning over the entire air-conditioned space while suppressing an increase in the number of parts and the number of construction steps.

  In the present invention, it is possible to provide an air conditioner group control device and an air conditioning system that can improve the comfort of air conditioning over the entire air-conditioned space while suppressing an increase in the number of parts and the number of construction steps.

1 is a schematic block diagram showing a first embodiment of the present invention. The schematic block diagram which shows the same embodiment. The graph which shows the control aspect by a state command. The graph which shows the control mode by a state quantity command. The schematic block diagram which shows the 2nd Embodiment of this invention. The schematic block diagram which shows the 3rd Embodiment of this invention. The schematic block diagram which shows the 4th Embodiment of this invention. The graph which shows the relationship between the air-conditioning load and the output by GHP and EHP. The schematic block diagram which shows a conventional form. The schematic block diagram which shows a conventional form.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram illustrating an air conditioner group control device according to the present embodiment and an air conditioning system to which the air conditioner group control device is applied.

  As shown in the figure, a gas heat pump type air conditioner 10 (hereinafter also referred to as GHP10) as a first air conditioner that performs air conditioning of a part of a single air-conditioned space S is installed outdoors. An outdoor unit 11 is provided, and an indoor unit 16 installed in a room such as a ceiling is provided. The outdoor unit 11 includes, for example, an open type compressor 12, an outdoor heat exchanger 13, a four-way switching valve 14, and the like. The indoor unit 16 includes an indoor heat exchanger 17, an expansion valve 18, and the like. It is configured with. The GHP 10 includes a compressor 12, an outdoor heat exchanger 13, a four-way switching valve 14, an indoor heat exchanger 17, an expansion valve 18, a refrigeration cycle in which refrigerant is circulated through a communication refrigerant pipe connecting the outdoor unit 11 and the indoor unit 16, and the like. 10a. Then, the GHP 10 sends the cooled (or warmed) air through the indoor heat exchanger 17 to the air-conditioned space S from the outlet (outlet) 19 formed on the lower surface of the indoor unit 16. Then, the air-conditioned space S is cooled or heated.

  The drive source of the compressor 12 is a gas engine 12b adjacent to the compressor body 12a, and the compressor body 12a and the gas engine 12b are directly connected or connected via a belt. The compressor 12 is operated by a gas engine 12b to which fuel gas is supplied from the outside.

  On the other hand, an electric heat pump type air conditioner 20 (hereinafter also referred to as EHP 20) as a second air conditioner that performs air conditioning of the other part of the air-conditioned space S includes an outdoor unit 21 installed outside, and For example, an indoor unit 26 installed in a room such as a ceiling is provided. The outdoor unit 21 includes a compressor 22, an outdoor heat exchanger 23, a four-way switching valve 24, and the like, and the indoor unit 26 includes an indoor heat exchanger 27, an expansion valve 28, and the like. Has been. The EHP 20 is a refrigeration cycle in which refrigerant is circulated by a compressor 22, an outdoor heat exchanger 23, a four-way switching valve 24, an indoor heat exchanger 27, an expansion valve 28, a communication refrigerant pipe connecting the outdoor unit 21 and the indoor unit 26, and the like. 20a is configured. Then, the EHP 20 sends the cooled (or warmed) air through the indoor heat exchanger 27 to the air-conditioned space S from the outlet (outlet) 29 formed on the lower surface of the indoor unit 26. Then, the air-conditioned space S is cooled or heated.

  In addition, the drive source of the compressor 22 is the electric motor 22a arrange | positioned in the compressor casing. The compressor 22 is operated by an electric motor 22a to which electric power is supplied from the outside. Therefore, it is the EHP 20 that consumes the main power in the present air conditioning system, which has a significant power consumption compared to the GHP 10. The power consumption is measured by a power usage meter 51 that detects a pulse signal of a trading instrument provided in the installation equipment of the power company.

  Here, the indoor unit 16 of the GHP 10 and the indoor unit 26 of the EHP 20 are alternately arranged in the air-conditioned space S. For example, when a plurality of indoor units 16 and 26 are arranged in a matrix, the same number of indoor units 16 and 26 are arranged in a so-called checkered pattern. Alternatively, when each of the indoor units 16 and 26 is disposed one by one, the indoor units 16 and 26 are arranged symmetrically. In this case, as shown in FIG. 2, in the air-conditioned space S, an area mainly conditioned by the GHP 10 (hereinafter referred to as a GHP indoor unit vicinity area AG) and an area conditioned by the EHP 20 (hereinafter referred to as an EHP indoor unit vicinity). Area AE) exists. Hereinafter, for convenience, the indoor units 16 and 26 will be described as being symmetrically arranged in the air-conditioned space S.

  As shown in FIG. 2, the air conditioning system includes a return air system 40 as an external device that forms a flow path of return air (return air) RA in the air-conditioned space S. The duct 41 included in the return air system 40 includes intake ports 41 a and 41 b that are disposed on the wall side and the indoor unit 16 side of the indoor unit 26 and communicate with the air-conditioned space S, and the wall of the indoor unit 16. The intake port 41c is provided on the side and communicates with the air-conditioned space S. The intake ports 41a to 41c are provided with dampers D1, D2, and D3 made of, for example, motor-operated valves that adjust the air volume (ventilation volume) of the return air RA that flows through the increase and decrease of the opening degree.

  The general air conditioning controller 30 as a control means (air conditioner group control device) that controls the GHP 10 and the EHP 20 is mainly composed of, for example, a microcomputer, and a storage means that includes a CPU and various memories such as a RAM and a ROM. The interface is configured to communicate with the outside. The general air conditioning controller 30 inputs various types of information from the electrically connected GHP 10 and EHP 20, and inputs information on the used power from the used power measuring instrument 51 that is also electrically connected as needed. The general air conditioning controller 30 generates various control commands for the GHP 10, the EHP 20, and the return air system 40 according to a predetermined program. This is to adjust the air conditioning output of the GHP 10 and the EHP 20 according to the air conditioning load, thereby extending the life of the GHP 10 (gas engine 12b) and leveling the power used.

  That is, the general air conditioning controller 30 receives various types of information such as room temperature, set temperature, and outside air temperature from the GHP 10 and the EHP 20, and receives information on the used power from the used power measuring device 51. The general air conditioning controller 30 calculates and acquires the current air conditioning load based on the received information. The balance determination unit 31 of the general air conditioning controller 30 determines the balance between the air conditioning output by the GHP 10 and the air conditioning output by the EHP 20 according to the fluctuation of the air conditioning load, and issues the GHP command as the first control command and the EHP command as the second control command. Generate. In addition, the GHP command unit 32 as the first command unit of the general air conditioning controller 30 electrically connected to the microcomputer-based GHP control unit 11a installed in the outdoor unit 11 of the GHP 10 transmits the GHP to the GHP control unit 11a. Send a command. Furthermore, the EHP command unit 33 as the second command unit of the general air conditioning controller 30 electrically connected to the microcomputer-based EHP control unit 21a installed in the outdoor unit 21 of the EHP 20 sends an EHP to the EHP control unit 21a. Send a command.

  The GHP control unit 11a and the EHP control unit 21a that have received the GHP command and the EHP command control the operations of the GHP 10 and the EHP 20 so that the determined balance of the air conditioning output is obtained. As a result, the GHP 10 and the EHP 20 are operated in consideration of extending the life of the GHP 10 (gas engine 12b) and leveling the power used. As described above, when such operations of the GHP 10 and the EHP 20 are performed, a deviation (unbalance) occurs in the air conditioning outputs of the GHP 10 and the EHP 20 (see FIG. 8). As a result, for example, in the cooling operation, the air conditioning output is insufficient with respect to the air conditioning load in the EHP indoor unit vicinity area AE and the temperature becomes high. Temperature decreases. Or the reverse phenomenon occurs.

  In consideration of such a phenomenon, the external device command unit 34 of the general air conditioning controller 30 electrically connected to the dampers D1 to D3 of the return air system 40 serves as an external device control command for the dampers D1 to D3. Each of the opening commands is transmitted. This opening degree command controls the opening degree of the dampers D1 to D3 so as to control the airflow (return air RA) generated in the air-conditioned space S so as to suppress the imbalance between the air conditioning outputs of the GHP 10 and the EHP 20. is there.

  That is, for example, in a state where the air conditioning output of the EHP 20 is smaller than the air conditioning output of the GHP 10, the opening degree of the dampers D2 and D3 is decreased by the opening degree command, and the opening degree of the damper D1 is increased. In this case, the air volume at the intake ports 41b and 41c is reduced, and the air volume at the intake port 41a is increased so that the GHP indoor unit vicinity area AG (area with excessive air conditioning output) to the EHP indoor unit vicinity area AE (air conditioning output). An air flow to the shortage area) is created, and a decrease in air conditioning comfort due to an imbalance (excess or deficiency) in the air conditioning output of the GHP indoor unit vicinity area AG and the EHP indoor unit vicinity area AE is suppressed.

  On the contrary, in the state where the air conditioning output of GHP10 is smaller than the air conditioning output of EHP20, the opening degree of dampers D1 and D2 is decreased by the opening degree command, and the opening degree of damper D3 is increased. In this case, the air volume at the intake ports 41a and 41b is reduced and the air volume at the intake port 41c is increased so that the area near the EHP indoor unit AE (area with excessive air conditioning output) to the area near the GHP indoor unit AG (air conditioning output). The airflow to the shortage area) is created, and the deterioration of the air conditioning comfort due to the imbalance of the air conditioning output of the GHP indoor unit neighborhood area AG and the EHP indoor unit neighborhood area AE is suppressed.

  Here, the relationship between the deviation (degree of unbalance) between the air conditioning output of the GHP 10 and the EHP 20 (the degree of unbalance), and the opening command and the opening amounts of the corresponding dampers D1 to D3 will be described with reference to FIG. The deviation when the air conditioning output of the EHP 20 is smaller than the air conditioning output of the GHP 10 is expressed as an EHP output suppression amount, and the deviation when the air conditioning output of the GHP 10 is smaller than the air conditioning output of the EHP 20 is expressed as the GHP output suppression amount. It represents as.

  As shown in the figure, when both the EHP output suppression amount and the GHP output suppression amount are zero, that is, when the air conditioning output of the EHP 20 and the air conditioning output of the GHP 10 are equivalent, the opening degree commands for the dampers D1 to D3 are not transmitted, The openings of these dampers D1 to D3 are set to a predetermined opening AP that does not hinder the flow of the return air RA. In a state where there is a GHP output suppression amount (GHP output suppression state), the external device command unit 34 uses a stepped opening command (hereinafter referred to as “GHP”) to generate an airflow to the GHP indoor unit vicinity area AG. (Also referred to as “output suppression state command”). Thereby, the opening degree of the dampers D1 and D2 is reduced to the predetermined opening degree APd (<AP), and the opening degree of the damper D3 is increased to the predetermined opening degree APu (> AP). Further, in a state where the amount of EHP output suppression exists (EHP output suppression state), the external device command unit 34 uses a stepped opening degree command (hereinafter referred to as “EHP” to generate an air flow to the EHP indoor unit vicinity area AE. (Also referred to as “output suppression state command”). Thereby, the opening degree of the dampers D2 and D3 is reduced to the predetermined opening degree APd, and the opening degree of the damper D1 is increased to the predetermined opening degree APu. That is, the GHP output suppression state command or the EHP output suppression state command is transmitted by the external device command unit 34 according to the state of the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20 (GHP output suppression state or EHP output suppression state). Thus, the opening degree of the dampers D1 to D3 is increased or decreased stepwise. As described above, the return air RA of the air-conditioned space S is controlled so as to suppress the imbalance between the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20, and the comfort of the air conditioning is improved.

  In addition, as shown in FIG. 4, in the state where the GHP output suppression amount or the EHP output suppression amount exists (GHP output suppression state or EHP output suppression state), those state amounts (GHP output suppression amount or EHP output suppression amount) Accordingly, the opening degree of the dampers D1 to D3 may be increased or decreased. That is, in a state where there is a GHP output suppression amount or an EHP output suppression amount, the external device command unit 34 transmits a linear function-like (continuous function-like) opening degree command (hereinafter also referred to as “output suppression amount command”). To do. For example, in a state where there is a GHP output suppression amount, an output that decreases as the state amount increases in order to generate an airflow to the GHP indoor unit vicinity area AG with an airflow corresponding to the state amount (GHP output suppression amount). A suppression amount command is sent. Thereby, as the state quantity increases, the opening degree of the dampers D1 and D2 is reduced so as to become smaller than the predetermined opening degree AP, and the opening degree of the damper D3 becomes larger than the predetermined opening degree AP. Will be increased. Further, in the state where the EHP output suppression amount exists, an output that increases as the state amount increases in order to generate an air flow to the EHP indoor unit vicinity area AE with an air volume corresponding to the state amount (EHP output suppression amount). A suppression amount command is sent. Thereby, as the state quantity increases, the opening degree of the dampers D2 and D3 is reduced so as to become smaller than the predetermined opening degree AP, and the opening degree of the damper D1 becomes larger than the predetermined opening degree AP. Will be increased. That is, according to the state quantity (GHP output suppression amount or EHP output suppression amount) of the air conditioning output of the GHP 10 and the EHP 20, the output suppression amount command is transmitted by the external device command unit 34, so that the dampers D <b> 1 to D <b> 3. Is increased or decreased linearly (continuously). Even if it changes in this way, the return air RA of the air-conditioned space S is controlled so as to suppress the imbalance between the air-conditioning output of the GHP 10 and the air-conditioning output of the EHP 20, and the comfort of air conditioning is improved.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the balance determining unit 31 determines the balance between the air conditioning output by the GHP 10 and the air conditioning output by the EHP 20 according to the fluctuation of the air conditioning load, and based on this, the GHP command and the EHP command are generated. Then, the GHP command is sent to the GHP 10 by the GHP command unit 32, and the EHP command is sent to the EHP 20 by the EHP command unit 33, so that the GHP 10 and the EHP 20 can obtain the necessary air-conditioning output as a whole of the air-conditioned space S. Controlled (overall control). At this time, the air conditioning output by the GHP 10 and the air conditioning output by the EHP 20 may become unbalanced, but the opening degree command (the GHP output suppression state command or the EHP output suppression state command, or the GHP output suppression amount command) may be generated by the external device command unit 34. Alternatively, the return air RA generated in the air-conditioned space S is controlled by sending the EHP output suppression amount command) to the return air system 40 (dampers D1 to D3). Accordingly, the air conditioning output of a part of the air-conditioned space S shared by the GHP 10 (GHP indoor unit neighborhood area AG) and the air conditioning output of the other part of the air-conditioned space S shared by the EHP 20 (EHP indoor unit neighborhood area AE) are unbalanced. Thus, the return air RA generated in the air-conditioned space S can be controlled, and the comfort of the air conditioning can be improved. Moreover, since the return air system 40 which is basically existing equipment essential for air conditioning of the air-conditioned space S is used, an increase in the number of parts and the number of construction steps can be suppressed.

  (2) In the present embodiment, when the external device command unit 34 sends a status command (GHP output suppression status command or EHP output suppression status command) to the return air system 40 (dampers D1 to D3), the air conditioning output is relatively The return air system 40 (dampers D1 to D3) may be switched and controlled so that the airflow in the air-conditioned space S shared by the small air conditioner (GHP10 or EHP20) is promoted, and the calculation load is reduced. can do. On the other hand, when the external device command unit 34 sends a state quantity command (GHP output suppression amount command or EHP output suppression amount command) to the return air system 40 (dampers D1 to D3), it is based on the deviation of the air conditioning output between the GHP 10 and the EHP 20. Thus, the return air system 40 (dampers D1 to D3) is continuously operated so that the airflow in the air-conditioned space S shared by the air conditioner (GHP10 or EHP20) having a relatively small air conditioning output is promoted. The airflow can be controlled more precisely.

(3) In this embodiment, it is possible to respond to customer requests (such as extending the life of the gas engine 12b and leveling the power used) while maintaining air conditioning comfort.
(4) In this embodiment, in order to achieve both optimal control of the GHP 10 and EHP 20 and air conditioning comfort as in the conventional example, a small number of indoor units (16, 26) are selected and installed in large numbers (Ichimatsu) The conditioned air supplied from the GHP 10 and the conditioned air supplied from the EHP 20 need not be sent to the air-conditioned space S via a common outlet. That is, the same effect can be obtained by adding the external device command unit 34 to the general air conditioning controller 30 and electrically connecting the external device command unit 34 and the return air system 40 (dampers D1 to D3). Equipment costs and construction costs can be minimized.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. In addition, since 2nd Embodiment is the structure which changed the return air system 40 as an external apparatus of 1st Embodiment only to the air supply system, the detailed description is abbreviate | omitted about the same part.

  FIG. 5 is a schematic configuration diagram illustrating an air conditioner group control device according to the present embodiment and an air conditioning system to which the air conditioner group control device is applied. As shown in the figure, the air conditioning system includes an air supply system 60 as an external device that forms a flow path of an air supply (supply air) SA in the air-conditioned space S. The outdoor air conditioner 61 provided in the air supply system 60 is connected to a duct 62 that takes in the outside air OA. The external air conditioner 61 performs primary processing on the temperature of the external air OA taken in from the duct 62 and supplies the air to the duct 63 connected to the external air conditioner 61 as the supply air SA.

  The duct 63 is provided on the wall side of the indoor unit 26 and the indoor unit 16 side, and has air supply ports 63a and 63b communicating with the air-conditioned space S. The duct 63 is provided on the wall side of the indoor unit 16 and is air-conditioned. An air supply port 63c communicating with the space S is provided. In addition, dampers D11, D12, and D13 made of, for example, motor-operated valves are provided in the air supply ports 63a to 63c to adjust the air volume (air supply volume) of the supply air SA that flows through the increase and decrease of the opening degree. .

  And the external apparatus command part 34 of the comprehensive air conditioning controller 30 electrically connected with the dampers D11-D13 transmits the opening degree command as an external apparatus control command with respect to the dampers D11-D13, respectively. This opening degree command controls the opening degree of the dampers D11 to D13 so as to control the airflow (supply air SA) generated in the air-conditioned space S so as to suppress the imbalance between the air conditioning outputs of the GHP 10 and the EHP 20. is there.

That is, for example, in a state where the air conditioning output of the EHP 20 is smaller than the air conditioning output of the GHP 10, the opening degree of the dampers D12 and D13 is increased by the opening degree command, and the opening degree of the damper D11 is reduced. In this case, the air volume at the air supply ports 63b and 63c is increased, and the air volume at the air supply port 63a is decreased, so that the area near the EHP indoor unit AE (area where air conditioning output is excessive) from the GHP indoor unit vicinity area AG ( The airflow to the air conditioning output shortage area) is created, and the deterioration of air conditioning comfort due to the imbalance (over shortage) of the air conditioning output of the GHP indoor unit vicinity area AG and the EHP indoor unit vicinity area AE is suppressed.

On the contrary, in the state where the air conditioning output of the GHP 10 is smaller than the air conditioning output of the EHP 20, the opening degree of the dampers D11 and D12 is increased by the opening degree command, and the opening degree of the damper D13 is reduced. In this case, the air volume at the air supply ports 63a and 63b is increased and the air volume at the air supply port 63c is decreased, so that the area near the EHP indoor unit AE (area with excessive air conditioning output) to the area near the GHP indoor unit AG The airflow to the area where air conditioning output is insufficient) is created, and the deterioration of air conditioning comfort due to the imbalance of the air conditioning output of the GHP indoor unit vicinity area AG and the EHP indoor unit vicinity area AE is suppressed.

Note that the opening degree command by the external device command unit 34 may be a state command or a state quantity command (see FIGS. 3 and 4).
As described above in detail, according to this embodiment, the same effect as that of the first embodiment can be obtained.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to the drawings. The third embodiment is different from the first and second embodiments in that a circulator that stirs the air in the air-conditioned space S as an external device is different from the first and second embodiments. Description is omitted.

  FIG. 6 is a schematic configuration diagram illustrating an air conditioner group control device according to the present embodiment and an air conditioning system to which the air conditioner group control device is applied. As shown in the figure, the air conditioning system includes a pair of circulators 66 and 67 as external devices that stir the air in the air-conditioned space S. The circulators 66 and 67 are arranged on the wall side of the indoor unit 16 and the wall side of the indoor unit 26, respectively. Then, the external device command unit 34 of the general air conditioning controller 30 electrically connected to the circulators 66 and 67 transmits an output command as an external device control command to the circulators 66 and 67, respectively. This output command individually controls the outputs of the circulators 66 and 67, that is, the air volume, in order to control the airflow (supply air SA) generated in the air-conditioned space S so as to suppress the imbalance between the air conditioning outputs of the GHP 10 and the EHP 20. To do.

Therefore, even if such a change is added, an airflow is generated between the GHP indoor unit vicinity area AG and the EHP indoor unit vicinity area AE, and the same effect as in the first and second embodiments can be obtained.
(Fourth embodiment)
Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings. In the fourth embodiment, the duct-type indoor unit adopts an indoor unit blowing system as an external device, which is different from the first to third embodiments. Detailed description is omitted.

  FIG. 7 is a schematic configuration diagram illustrating an air conditioner group control device according to the present embodiment and an air conditioning system to which the air conditioner group control device is applied. As shown in the figure, the duct-type indoor unit 71 of the GHP 10 is arranged independently on the wall side of one side (the left side in the figure) of the air-conditioned space S, and blows out the conditioned air into the air-conditioned space S. A duct 72 is provided. The duct 72 has air outlets 72a and 72b as a plurality of first air outlets. And the dampers D21 and D22 which consist of an electric valve, for example are arrange | positioned at the blower outlets 72a and 72b. Similarly, the duct-type indoor unit 76 of the EHP 20 is disposed independently on the wall side on the other side (right side in the drawing) of the air-conditioned space S, and includes a duct 77 that blows air conditioned to the air-conditioned space S. . This duct 77 has air outlets 77a and 77b as a plurality of second air outlets. And the dampers D23 and D24 which consist of an electric valve, for example are arrange | positioned at the blower outlets 77a and 77b. The dampers D21 to D24 constitute a blowout system 70 as an external device that switches the blowout positions and air volumes of the blowout openings 72a, 72b, 77a, and 77b, respectively. And the external apparatus instruction | command part 34 of the comprehensive air conditioning controller 30 electrically connected with the dampers D21-D24 of the blowing system 70 transmits the opening degree command as an external apparatus control command with respect to the dampers D21-D24, respectively. This opening degree command is the outlet position of the outlets 72a, 72b, 77a, 77b to control the airflow (supply air SA) generated in the air-conditioned space S so as to suppress the imbalance of the air conditioning outputs of the GHP 10 and the EHP 20. Are switched respectively.

  Therefore, even if such a change is added, an airflow is generated between the GHP indoor unit vicinity area AG and the EHP indoor unit vicinity area AE, and the same effect as in the first to third embodiments can be obtained. In particular, in the present embodiment, the dampers D21 to D24 can change not only the blowout positions of the blowout openings 72a, 72b, 77a, 77b but also the blown air volume, thereby enabling finer control. Further, the air blown out from the air outlet 72b even if the GHP 10 is operated independently (stops the EHP 20) by extending one air outlet 72b of the GHP 10 to the EHP indoor unit vicinity area AE on the right side of the air-conditioned space S. Flows through the entire room and is sucked into the indoor unit 71, so that the occurrence of temperature unevenness can be suppressed. Similarly, by extending one outlet 77b of the EHP 20 to the GHP indoor unit vicinity area AG on the left side of the air-conditioned space S, the occurrence of temperature unevenness is suppressed even if the EHP 20 is operated independently (stops the GHP 10). can do.

In addition, you may change the said embodiment as follows.
In the first to second embodiments, the number of dampers (intake ports or supply ports) and the arrangement mode thereof are examples. Moreover, you may control the opening degree of these dampers so that all may mutually differ.

  In the first to third embodiments, the number of indoor units 16 and 26 in the air-conditioned space S and the arrangement mode thereof are merely examples, and the same number of indoor units 16 and 26 are not necessarily arranged alternately. . The outputs of the indoor units 16 and 26 may be equal to each other or different from each other. In short, when the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20 are unbalanced, they are generated in the air-conditioned space S by the control command from the external device command unit 34 according to the arrangement pattern and output of the indoor units 16 and 26 What is necessary is just to control the airflow to do.

-In the said 4th Embodiment, the number of the blower outlets 72a, 72b, 77a, 77b in the to-be-conditioned space S and its arrangement | positioning aspect are examples.
-In each said embodiment, the distribution aspect (refer FIG. 2) of the air-conditioning output of GHP10 and the air-conditioning output of EHP20 is an example. For example, when the air-conditioning load is low, only the high-efficiency EHP 20 is operated. When the air-conditioning load is intermediate, only the high-efficiency GHP 10 is operated. Also good. Alternatively, the operation of the GHP 10 and the EHP 20 may be started simultaneously even when the air conditioning load is low. In short, when the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20 are unbalanced, the air flow generated in the air-conditioned space S may be controlled by the control command from the external device command unit 34 so as to suppress this. .

  In addition, the purpose of distributing the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20 (such as extending the life of the gas engine by shortening the operation time, reducing the basic charge by leveling the power used) is an example. For example, the efficiency of GHP10 (gas engine 12b) may be increased and the maintenance frequency may be reduced, or the energy cost of the entire GHP10 and EHP20 may be reduced. Alternatively, when the maximum demand value is expected to increase in the heating operation by the EHP 20 such as the morning of a holiday in the winter season, the heating operation is started only by the GHP 10 and the heating operation only by the EHP 20 is performed after the air conditioning load falls below a certain level. You may make it switch. In short, it is only necessary to provide the general air conditioning controller 30 with necessary information according to the customer's request and distribute the air conditioning output of the GHP 10 and the air conditioning output of the EHP 20 so as to meet the purpose.

  In each of the above embodiments, a combination of a state command and a state quantity command may be sent to an external device as an external device control command.

  D1 to D3, D11 to D13, D21 to D24 ... damper, S ... air-conditioned space, 10 ... GHP (first air conditioner), 16, 26, 71, 76 ... indoor unit, 20 ... EHP (second air conditioner) Machine), 31 ... balance determination unit, 32 ... GHP command unit (first command unit), 33 ... EHP command unit (second command unit), 34 ... external device command unit, 40 ... return air system (external device), 60 ... Air supply system (external device), 66, 67 ... Circulator (external device), 70 ... Blowout system (external device), 72a, 72b ... Blowout port (first blowout port), 77a, 77b ... Blowout port (first) 2 outlets).

Claims (5)

A first command unit that sends a first control command to a gas heat pump type first air conditioner that air-conditions a part of a single air-conditioned space;
A second command unit that sends a second control command to an electric heat pump type second air conditioner that performs air conditioning of the other part of the air-conditioned space;
A balance determining unit that determines a balance between an air conditioning output by the first air conditioner and an air conditioning output by the second air conditioner according to a change in an air conditioning load, and generates the first control command and the second control command;
An external device command unit that sends an external device control command to an external device that generates airflow in the air-conditioned space according to the balance between the air conditioning output from the first air conditioner and the air conditioning output from the second air conditioner. An air conditioner group control device. In the air conditioner group control device according to claim 1,
The external device includes an air supply system that forms a flow path for air to be supplied to the air-conditioned space, a return air system that forms a flow path for return air in the air-conditioned space, and a circulator that agitates the air in the air-conditioned space An air conditioner group control device characterized by being at least one of the following. In the air conditioner group control device according to claim 1,
The indoor unit of the first air conditioner includes a plurality of first air outlets that blow out air conditioned in the air-conditioned space,
The indoor unit of the second air conditioner includes a plurality of second outlets for blowing out air conditioned in the air-conditioned space,
The air conditioner group control device, wherein the external device is a blowing system that switches a blowing position of the plurality of first blowing outlets and a blowing position of the plurality of second blowing outlets. In the air conditioner group control device according to any one of claims 1 to 3,
The external device command unit, as the external device control command, a state command indicating a balance state of the air conditioning output by the first air conditioner and an air conditioning output by the second air conditioner, and a state indicating the state quantity of the balance An air conditioner group control device that sends at least one of quantity commands. A gas heat pump type first air conditioner that air-conditions a part of a single air-conditioned space;
An electric second air conditioner for air-conditioning the other part of the air-conditioned space;
Control means for comprehensively controlling the first air conditioner and the second air conditioner;
In an air conditioning system comprising an external device that generates airflow in the air-conditioned space,
The control means includes
A first command unit that sends a first control command to the first air conditioner;
A second command unit for sending a second control command to the second air conditioner;
A balance determination unit that determines a balance between the air conditioning output by the first air conditioner and the air conditioning output by the second air conditioner according to a change in the air conditioning load, and generates the first control command and the second control command;
An air conditioner comprising: an external device command unit that sends an external device control command to the external device according to a balance between the air conditioning output by the first air conditioner and the air conditioning output by the second air conditioner. system.

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