JP3166376B2 - Heat utilization equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat utilization apparatus such as a hot water supply and a heating for a residential building central used for an apartment house or the like.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional heat utilization apparatus for a residential building central.

FIG. 4 circulates a heat medium as a primary fluid toward each dwelling unit and obtains hot water supply or heating by using heat of the heat medium in each dwelling unit. A heat medium outlet pipe 2 is provided in the heat medium heater 1 toward each floor and each dwelling unit of the living building, and a heat medium return pipe 3 connected at an end of the heat medium outlet pipe 2 is piped to circulate the heat medium. The heat medium circulation path 4 is provided with a circulation pump 5 driven by an electric motor 5a. The heat source of the heat medium heater 1 is a heat source device provided in a house or another energy plant for supplying district heat.

[0004] Reference numerals 6a and 6b denote hot water supply and heating devices in each dwelling unit, which are provided with heat exchangers 7 for hot water supply, hot and cold water mixing taps 8a and 8b, and blowers 10a and 10b driven by electric motors 9a and 9b. 11a and 11b.

[0005] One end of the primary side flow path 7a of the hot water supply heat exchanger 7 is connected to the heat medium return pipe 2 and the other end is connected to the heat medium return pipe 3 and to the heat medium circulation path 4. A water supply pipe 12 is connected to one end of the secondary flow path 7b having a heat exchange relationship with the primary flow path 7a, and the other end is connected to a hot and cold water mixing tap 8a through a hot water supply pipe 13.
8b, which is connected to the outlet 8 after being connected to the water supply pipe 12.
c, 8d.

One end of each of the heat radiators 11a and 11b is connected to a heat medium return pipe 2, and the other end is connected to a heat medium return pipe 3 and is connected to a heat medium circulation path.

In the hot water supply / heating system of the above-mentioned living building central, high-temperature hot water (70-85 ° C.) is produced by the heating medium heater 1 and circulated to each living unit of the whole living building by the living-room circulation pump 5, and each living room is heated. It uses the heat of the heat medium for hot water supply or heating, and since each dwelling unit does not have a heat generating unit such as a combustion device, it is safe in the unlikely event of an accident and is particularly effective in high-rise apartment buildings. .

[0008]

However, in the above-described conventional configuration, the cost of equipment on the living building side for circulating and supplying the heat medium to the entire living building and the cost of transportation for constantly circulating the heating medium throughout the living building are reduced. Therefore, there is a problem of utilization cost that the energy unit price at the time of utilizing the heat medium in each dwelling unit increases and the running cost is high.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a heat utilization apparatus which uses a heat medium circulating in a dwelling building at low cost.

[0010]

In order to achieve the above object, the present invention provides a heat medium flow passage connected to a heat medium circulation path through which a heat medium as a primary fluid forcibly circulated flows, An actuator unit connected to the heat medium flow path that drives the secondary fluid using the power source as a power source, and the heat medium flow path that exchanges heat between the secondary fluid and the heat medium driven by the actuator unit. It has a configuration having a connected heat exchange unit.

In the second means, a house circulating pump powered by a heat source fluid sent from an energy supply plant, a heat medium as a primary fluid driven by the house circulating pump, and the heat source A dwelling unit having a heating medium heater for exchanging heat with a fluid, a heater unit using the heat medium as a power source, and a heat exchange unit exchanging heat with the secondary fluid driven by the actuator unit; It is configured to have a plurality of devices.

[0012]

According to the first aspect of the present invention, the first means drives and circulates a heat medium circulating a secondary fluid, which is a use side in each dwelling unit, as a power source, and uses the medium by exchanging heat with the heat medium. Thus, in addition to utilizing the heat of the heat medium, the power of the heat medium is also utilized to enhance the utilization of the heat medium.

According to the second means, in addition to the use of heat and power of the heat medium in each dwelling unit, a heat source for heating and transporting the heat medium to be circulated throughout the house is provided by a heat source transmitted from an energy plant further upstream. Fluid is used to improve the utilization of heat medium and save energy.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. Since the same reference numerals as those in the conventional example denote the same members and have the same functions, detailed description will be omitted, and different points will be mainly described.

FIG. 1 shows an embodiment of the present invention. In FIG. 1, reference numeral 14 denotes a heat medium passage 14a communicating with a heat medium supply pipe 2 and a heat medium discharge path 14b communicating with a heat medium return pipe 3. In the heat medium flow path connected to the circulation path 4, the heat medium flow path 14 is connected to heat exchange units 15 a and 15 b for heating and heat radiation and a primary side flow path 15 d for heat exchange unit 15 c for hot water supply. 16
Reference numerals a and 16b denote actuator units for air blowing, which are connected to the air blowers 17a and 17b so as to be capable of transmitting power and operate by the flow of a heat medium.
Reference numerals 6a and 16b are connected to the heat medium introduction passage 14a and the heat medium outflow passage 14b of the heat medium passage 14 via on-off valves 18a and 18b and heat exchange units 15a and 15b for heating and heat radiation.

Reference numeral 19 denotes a secondary flow path 15 which has a heat transfer relationship with a primary flow path 15d through which a heat medium of a heat exchange unit 15c for hot water supply flows.
e is a hot water circulation pump provided in a hot water circulation path 20 formed by a hot water return pipe 13b connecting an end of the hot water supply pipe 13a connected to one end of the e and the other end of the secondary flow path 15e. The pump 19 is connected to the heat medium introduction passage 14 of the heat medium passage 14.
a and a heat medium outlet passage 14b, and is connected to an actuator 16c for a pump that operates by the flow of the heat medium so as to transmit power.

Next, the actuator sections 16a, 16b,
16c will be described with reference to FIG. 21 is a drive fluid passage 2
Reference numeral 23 denotes a driving impeller provided on the driving wheel 2, reference numeral 23 denotes a cylindrical driving-side magnet integrally attached to the driving impeller 21 via a holder 24, and reference numeral 25 denotes a rotating shaft of the driving impeller 21 and the driving-side magnet 23. The drive rotary shaft 26 that can be freely rotated is a cylindrical driven magnet attached to a position facing the drive magnet 23. The drive magnet 23 and the driven magnet 26 are coupled to each other so that power can be transmitted by magnetic force. An output shaft 27 is attached to the driven magnet 26 and is rotatable. One end of the output shaft protrudes outside the actuator 16. 28
Numeral 29 denotes a partition wall made of a non-magnetic material that hermetically separates between the driving magnet 23 and the driven magnet 26, and 29 denotes a casing that houses the driving impeller 21 and has a driving fluid inlet 30 and a driving fluid outlet 31 provided therein. 32 is the drive impeller 21
The injection holes 33a and 33b provided on the upstream side of the bearing are bearings for supporting the drive rotary shaft 25, and the bearings 34a and 34b are bearings for supporting the output shaft 27.

The actuator section 16 in the above configuration
The operation of a, 16b and 16c will be described. The drive fluid inlet 30 of the drive side fluid passage 22 communicates with the heat medium introduction passage 14a, and the drive fluid outlet 31 communicates with the heat medium outflow passage 14b to connect to the heat medium flow passage 14, thereby forcing the heat medium circulation passage 4 The circulating heat medium is caused to flow into the drive fluid passage 22 and the ejection holes 32
, And is ejected toward the driving impeller 21 to rotate the driving impeller 21 by the fluid force. By the rotation of the drive impeller 21, the integrated drive-side magnet 23 rotates,
The driven magnet 26 coupled to the driving magnet 23 rotates by the magnetic force, and the output shaft 27 rotates.

The rotation of the output shaft 27 causes the output shaft 27 to rotate.
(Not shown) connected to the blowers 17a, 17b, 17
c or the hot water supply circulation pump 19 is driven.

Next, the actuators 16a, 16
The operation of the embodiment of the present invention incorporating b and 16c will be described.

First, in the hot water supply, when the hot and cold water mixing tap 8a or 8b is opened, the water supplied by the water supply pipe 12 flows into the secondary flow path 15e of the heat exchange section 15c for hot water supply, and the heat medium flow It exchanges heat with the high-temperature heat medium that has flowed into the primary side flow path 15d through the passage 14 and into the primary flow path 15d, and is heated and heated and supplied to the hot and cold water mixing taps 8a and 8b through the hot water supply pipe 13a. The taps 8a and 8b are mixed with water separately supplied from the water supply pipe 12 to obtain a desired hot water temperature, and the tap holes 8c and 8
Take water from d.

Further, when the hot and cold water mixing taps 8a and 8b are closed, the heating medium is forcibly circulated through the heating medium circulation path 4 which has flowed into the pump actuator section 16c through the heating medium flow path 14. The section 16c is operated, and the hot water supply circulation pump 19 connected to the actuator section 16c so as to transmit power is driven. The hot water circulation pump 19 operated in this way circulates the hot water in the hot water circulation circuit 20, which is the secondary fluid, and heats and raises the temperature with the heat medium in the heat exchange unit 15c. In this way, the hot water in the hot water supply circuit 20 is heated and kept warm, and when the hot and cold water mixing taps 8a and 8b are subsequently opened, the taps 8c and 8d are immediately opened immediately after opening without any waiting time.
Immediate hot water can be obtained from hot water.

Next, in heating, the on-off valves 18a, 18
b, the actuator units 16a, 16
b and the heat medium forcedly circulated through the heat medium circulation path 4 through the heat medium flow path 14 to the heat exchange sections 15a and 15b for heating and heat radiation flow in an amount corresponding to the degree of opening of the on-off valves 18a and 18b. Due to the flow of the heat medium, the air blowing actuator 16a,
16b is operated at a speed according to the flow rate of the heat medium, and the blowers 17a and 17b connected to the actuator sections 16a and 16b so as to be able to transmit power are driven to generate air corresponding to the flow rate of the heat medium. Heat exchange unit 15 for heat radiation
a and 15b. The air sent by the blowers 17a and 17b exchanges heat with the heat medium flowing through the heat exchange sections 15a and 15b, and is heated to perform heating. The heating capacity can be adjusted only by adjusting the opening of the on-off valves 18a and 18b.

As described above, since the heat medium forcibly circulating through the heat medium circulation path 4 is used as the power source for circulating the water or air as the secondary fluid and the heat source for heating and raising the temperature,
On the user side, the electricity cost due to the conventional motor drive system is not required, and the running cost can be reduced. Further, since electricity is not required, the electric work is not required, and the initial cost can be reduced by saving the work.

Further, since the heat medium is used not only as heat but also as power, the degree of use of the heat medium is improved, the unit price of the heat medium can be reduced, and the running cost can be further reduced.
Further, since the secondary fluid is driven without using the electric motor, the configuration of the device can be simplified, and the reliability can be improved. Further, noise such as a beat sound which has conventionally been generated by the operation of the electric motor is eliminated, and comfort can be improved by lowering noise.

Next, a second embodiment of the present invention will be described with reference to FIG. The same members and the same functions as those of the first embodiment of the present invention shown in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted.

Numeral 35 designates an entire dwelling unit connected to a driving unit 37 which is driven by a high-temperature heat source fluid sent from an energy supply plant 36 provided separately as in a district heat supply system as a power source so as to be able to transmit power. Pump part 3 for supplying heat medium to
Reference numeral 8 denotes a house circulating pump having a reference numeral 8, and reference numeral 39 denotes a house heating medium heating medium for exchanging heat between the heat source fluid sent from the energy plant 36 and the heat medium as the primary fluid sent from the pump unit 38 of the house wing circulation pump 35. It is a vessel.

Numerals 40a and 40b are connected to the pump section 38 of the house circulating pump 35 and the heat medium circulation path 4 in which the house heat medium heater 39 is annularly connected by the heat medium feed pipe 2 and the heat medium return pipe 3. A plurality of dwelling units 40a, 40b,... Are provided for the heat medium circulation path 4.

Each dwelling unit 40a, 40b has
A heat medium passage 14 which is constituted by a heat medium introduction passage 14a and a heat medium outflow passage 14b and communicates with the heat medium circulation passage 4, and heat exchange portions 15a and 15 connected to the heat medium passage 14 for heating and radiating heat.
b, a heat exchange unit 15c for hot water supply, actuator units 16a and 16b for blowing air, and an actuator unit 16c for pump, and the blowers 17a and 17b driven by the actuator units 16a and 16b for blowing air are respectively heated. Heating radiators 41a, 41b provided opposite heat exchange units 15a, 15b for heat radiation, and a hot water supply circulation pump 19 driven by a pump actuator 16c are connected to hot water supply pipes to which hot and cold water mixing taps 8a, 8b are connected. An instant hot water device 42 is provided in the hot water supply circulation path 20 which is formed by connecting the hot water supply return pipe 13b, the hot water supply return pipe 13b, and the hot water supply heat exchange section 15c in a ring shape.

Next, the operation of the second embodiment of the present invention will be described. A heat source fluid such as hot water or steam (shown by a thick solid line arrow in FIG. 3) sent from an energy supply plant 36 such as a district heat supply system is used to drive a driving unit 37 of a house circulating pump 35 and a house heating medium heater. Supply to 39,
The pump unit 38 of the house circulating pump 35 is driven by the drive unit 37 that is operated using the heat source fluid as a power source, and circulates the heat medium as the primary fluid supplied to the house in the direction of the white arrow in the figure. The high-temperature heat medium heated and heated by exchanging heat with the heat source fluid in the house heat medium heater 39 is supplied to the plurality of dwelling units 40a, 40a,
Send out toward 0b.

In each of the dwelling units 40a, 40b, when heating is used, the open / close valves 18a, 18b are opened to allow the heat medium to flow into the actuator sections 16a, 16b and the heat exchange sections 15a, 15b, using the heat medium as a power source. Actuator part 1
By operating the blowers 17a and 17b driven by 6a and 16b, air as the secondary fluid is removed from the heat exchange units 15a and 15b.
5b, and heat is exchanged with the heat medium to heat the heated air.

In the hot water supply, hot and cold water mixing taps 8a, 8b
When the water is opened, the feed water enters the secondary flow path 15e of the heat exchange section 15c by the feed water pressure from the water supply pipe 12, and the primary flow path 15
d, heat exchanges with the heat medium flowing therethrough to be heated and turned into hot water through the hot water supply pipe 13a, and tap holes 8c, 8 of the hot and cold water mixing taps 8a, 8b.
Take water from d.

Next, when the hot and cold water mixing taps 8a and 8b are closed, the hot water circulation pump 19 driven by the actuator 16c using the heat medium as a power source is operated, and hot water in the hot water circulation circuit 20 is discharged. The hot water is circulated and heated and heated by the heat medium in the heat exchange unit 15c, and the hot water in the hot water supply circulation path 20 is kept warm.
Next, when the hot and cold water mixing taps 8a and 8b are opened, the hot water can be immediately discharged without a waiting time, so that the quick-drying property is secured.

As described above, the heat medium circulating supply side of the dwelling building circulates the heat medium using the heat source fluid sent from the energy supply plant as a power source and a heat source. Since the heat medium is used as a circulating power source and a heating source for the air or water that is a fluid, the electricity cost required for the conventional motor drive system on the heat medium supply side and the heat medium use side of the house is unnecessary, and running costs are reduced. The initial cost can be reduced by saving the work by simplifying the electric work and reducing the power receiving equipment on the heat medium supply side.

Further, since the heat medium is used not only as heat but also as power, the degree of utilization of the heat medium is improved, the unit cost of the heat medium can be reduced, and the running cost can be further reduced.

Further, even in the event of a power outage, heat supply to the entire house and operation in each dwelling unit can be ensured, so that the reliability as a heat utilization device can be greatly improved.

Further, noise such as a beat sound which has conventionally been generated by the operation of the electric motor is eliminated, and comfort can be improved by reducing noise.

[0038]

As described above, according to the heat utilization apparatus of the first means of the present invention, the actuator unit using the heat medium of the primary fluid forcibly circulated as a power source and the actuator unit driven by the actuator unit Since there is a heat exchange unit for exchanging heat between the secondary fluid and the heat medium, electricity costs are not required, running costs can be reduced, electric work can be saved, and initial costs can be reduced.

Further, the unit cost of the heating medium can be reduced by improving the utilization of the heating medium, and the running cost can be further reduced. Furthermore, since there is no motor, there is an advantage that reliability can be improved by simplifying the device configuration and comfort can be improved by reducing noise.

Further, the heat utilization device of the second means of the present invention comprises:
The power source of the house circulating pump circulates and supplies a heating medium to a plurality of dwelling units provided as heat source fluids sent from another energy supply plant, and each dwelling unit has an actuator unit using the heating medium as a power source and this actuator. Since it has a heat exchange unit for exchanging heat between the secondary fluid and the heat medium driven by the unit, it is possible to greatly reduce running costs by reducing electricity bills on both the house building side and the house unit side. In addition, the initial cost can be greatly reduced by saving electric work by simplifying electric work and reducing power receiving equipment.

Further, even at the time of a power failure, continuation of heat supply and heat utilization operation at each dwelling unit can be ensured, and reliability can be improved.

Further, the running cost can be further reduced by reducing the unit price of the heating medium by improving the utilization of the heating medium, and the comfort can be improved by reducing the noise due to the absence of the motor.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a heat utilization device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of an actuator unit in the device.

FIG. 3 is a system configuration diagram of a heat utilization device according to a second embodiment of the present invention.

FIG. 4 is a system configuration diagram of a conventional heat utilization device.

[Explanation of symbols]

 4 Heat medium circulation path 14 Heat medium flow path 15a, 15b, 15c Heat exchange section 16a, 16b, 16c Actuator section

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24D 17/00

Claims (2)

(57) [Claims] 1. A heat medium flow path connected to a heat medium circulation path through which a heat medium as a primary fluid that is forcibly circulated flows, and the heat medium flow that drives a secondary fluid using the heat medium as a power source. A heat utilization device, comprising: an actuator connected to a path; and a heat exchange unit connected to the heat medium flow path for exchanging heat between the secondary fluid driven by the actuator and the heat medium. 2. A house circulating pump powered by a heat source fluid sent from an energy supply plant, and heat exchange is performed between the heat source fluid and a heat medium as a primary fluid driven by the house circulating pump. A plurality of dwelling units having a heating medium heating device to be heated, an actuator unit using the heat medium as a power source, and a heat exchange unit for exchanging heat with the secondary fluid driven by the actuator unit are provided. Heat utilization equipment.