JPH04240359A - Heat pump - Google Patents

Abstract

PURPOSE:To easily regulate room cooling/heating capacity. CONSTITUTION:Heat transport medium control means 31 for altering a flow rate or a passage of heat transport medium or altering an air flow rate to an outdoor side heat exchanger 18 and controlling heating or cooling amount of the medium, is mounted in a heat transport medium passage system connected to indoor and outdoor side heat exchangers 16, 18, etc.

Description

Description: FIELD OF INDUSTRIAL APPLICATION This invention relates to a heat pump device that adjusts heating and cooling capacity by arbitrarily changing heat exchange capacity. [0002] FIG. 4 is a block diagram showing a conventional Wilmeyer type heat pump device disclosed in, for example, Japanese Patent Application Laid-Open No. 61-44254. In the figure, 1 is a high temperature side cylinder; A high temperature chamber 6 and a medium chamber 7 are provided, which are separated by a reciprocating high temperature side displacer 2 inside. 3 is a high-temperature side heat exchanger communicating with the high temperature chamber 6, 4 is a heater, and 5 and 11 are heat storage units and intermediate temperature side heat disposed in sequence in the middle of a passage connecting the high temperature side heat exchanger 3 and the medium temperature chamber 7. The exchanger 21 is a low temperature side cylinder, which is separated into a medium chamber 8 and a low temperature chamber 9 by a low temperature side displacer 10 that reciprocates inside the cylinder. 12 is an auxiliary medium-temperature side heat exchanger, 13 is a low-temperature side heat exchanger, and 22 is a regenerator, which are sequentially arranged in a passage connecting the medium temperature room 8 and the low temperature room 9. 16 is an indoor heat exchanger, 17 is a blower, 18 is an outdoor heat exchanger, 19 is a blower, 23a and 23b are switching valves provided in the middle of a flow path through which the heat transport medium flows, and 24a and 24b are each one pump. Further, 26 is a motor shaft, 27 is a crank, and 28a and 28b are swinging rods, and the tips of the swinging rods 28 are pivotally supported by the ends of each displacer 2. Next, the operation will be explained. Due to the movement of the high temperature side displacer 2 in the high temperature side cylinder 1, the gas passing through the high temperature side heat exchanger 3 is transferred to the heater 4 provided outside.
The heat storage device 5 or the high temperature room 6
Flows into the gas, causing a pressure change in the gas. In this case, the pressure of the gas, which changes from moment to moment, becomes the same in the medium chambers 7 and 8 and the low temperature chamber 9, and the swinging rod 28a connected to the motor shaft
, 28b, the low-temperature side displacer 10 reciprocates with a phase shift, so that the average temperature of the gas in the medium chambers 7 and 8 is brought to about the indoor heating temperature, and the average temperature of the gas in the low-temperature chamber 9 is brought to the indoor cooling temperature. It will be about the temperature. Normally, the heat transport medium is heated in the medium-temperature heat exchangers 11 and 12, and cooled in the low-temperature heat exchanger 13. The heated heat transport medium is transferred by the pumps 24a and 24b, and in the case of heating, the switching valve 2
3a to the indoor heat exchanger 16, and the blower 1
7, heat is exchanged with the indoor air. On the other hand, in the case of cooling, the heat is sent to the outdoor heat exchanger 18 via the switching valve 23a, and is radiated to the atmosphere by the blower 19. In addition, the heat transport medium cooled by the low-temperature side heat exchanger 13 is sent to the indoor heat exchanger 16 in the case of cooling, and sent to the outdoor heat exchanger 18 in the case of heating, respectively. heat exchanged with indoor and outdoor air. Problem to be Solved by the Invention Since the conventional heat pump device is configured as described above, the heating and cooling capacity is
The temperature of the gas in the high temperature chamber 6 determined by the heating amount of the heater 4, and the temperature of the gas in the medium temperature chamber 7, 8 or the low temperature chamber 9 determined by the ambient temperature and the amount of heat processed by each heat exchanger 16, 18, 11, 13. Therefore, there were problems such as the fact that the heating and cooling capacity could not be easily changed. [0005] The present invention was made to solve the above-mentioned problems, and provides a heat pump device in which the heating and cooling capacity can be easily changed by arbitrarily changing the heat exchange capacity of the heat transport medium. The purpose is to [Means for Solving the Problems] A heat pump device according to the present invention has a flow path system for a heat transport medium connected to each heat exchanger on an indoor side and an outdoor side. A heat transport medium control means is installed to control the amount of heat transport medium. [Operation] The heat transport medium control means of the present invention controls the amount of air blown by the blower to the outdoor heat exchanger, the selective supply of the heat transport medium to the divided outdoor heat exchangers, and the flow rate of the heat transport medium. Each control allows the heating and cooling capacity of the Wilmeyer heat pump to be adjusted as desired. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 31 denotes a blower control device as a heat transport medium control means, which is configured such that, for example, the level and frequency of the voltage supplied to the motor of the blower 19 can be arbitrarily adjusted. Note that other components that are the same as those shown in FIG. 4 are designated by the same reference numerals, and redundant explanation thereof will be omitted. Next, the operation will be explained. In this embodiment, by adjusting the level and frequency of the voltage supplied to the motor of the blower 19, the rotational speed of the blower 19, that is, the amount of air blown, can be arbitrarily adjusted. Therefore, the amount of wind cooling of the heat transport medium in the outdoor heat exchanger 18 changes, and the heating and cooling capacity as the heat exchange capacity can be adjusted arbitrarily. FIG. 2 shows another embodiment of the invention. This allows the outdoor heat exchanger 18 to be divided into, for example, two heat exchangers 18a,
18b, and a valve 3 is attached to one side of the flow path connected to these.
2. According to this, by opening and closing the valve 32, one or both of the flow paths, that is, the heat exchanger 18a,
A heat transport medium can be selectively flowed through one or both of the heat exchangers 18b, and by changing the heat exchange area in the outdoor heat exchanger 18, the heat exchange capacity can be changed. Therefore, the heating and cooling capacity can be adjusted as desired. FIG. 3 shows yet another embodiment of the invention. This is because the pump controller 33 is connected to the pumps 24a and 24b.
a, 33b are connected, and by inputting various voltage levels and frequencies as control inputs to the drive devices of the pumps 24a, 24b, the flow rate of the heat transport medium from the pumps 24a, 24b can be changed. . Thereby, the heat exchange efficiency can be adjusted, and the desired heating and cooling capacity can be obtained. In other words, by such means, the temperature of each gas is changed on the side that is not used for heating and air conditioning, that is, in the cold room 9 for heating and in the medium room for cooling, and it is possible to change the heating and cooling capacity. can. In addition, in the above embodiment, the blower 1 attached to the outdoor heat exchanger 18
9, flow path switching to each outdoor heat exchanger 18, and control of heat transport medium pumps 24a and 24b are desirably performed in accordance with the temperature of the air-conditioned space and its rate of change, and
Based on the output characteristic information regarding the temperature of the gas in the working space in advance, control can be performed so that the gas temperature in the working space is obtained in accordance with the required air conditioning load. [0012] As described above, according to the present invention, the flow rate and cooling amount of the heat transport medium can be adjusted in the flow path system of the heat transport medium connected to each heat exchanger on the indoor side and the outdoor side. Since it is configured to include a heat transport medium control means for controlling the heat transport medium, the heat exchange efficiency in the flow path system of the heat transport medium can be arbitrarily adjusted, and therefore the heating and cooling capacity of the Wilmeyer heat pump device can be changed. There is an effect that can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing a heat pump device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a heat pump device according to another embodiment of the present invention.

FIG. 3 is a configuration diagram showing a heat pump device according to still another embodiment of the present invention.

FIG. 4 is a configuration diagram showing a conventional heat pump device.

[Explanation of symbols]

1 High temperature side cylinder 2 High temperature side displacer 3 High temperature side heat exchanger 5 Heat storage unit 6 High temperature chamber 7 First medium chamber 8 Second medium chamber 9 Low temperature chamber 10 Low temperature side displacer 11 Medium temperature side heat exchanger 13 Low temperature side heat exchange Device 21 Low pressure side cylinder 22 Regenerator 23a Switching valve 23b Switching valve 24a Pump 24b Pump 31 Heat transport medium control means (blower control device) In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A high-temperature side displacer and a low-temperature side displacer that reciprocate out of phase with each other, a high-temperature side cylinder in which a high temperature chamber and a first medium chamber are separated by the high-temperature side displacer, and the low-temperature side displacer. a low temperature side cylinder divided into a low temperature chamber and a second medium chamber;
a high temperature side heat exchanger that communicates with the high temperature chamber and is heated from the outside; a heat storage device and a medium temperature side heat exchanger disposed between the high temperature side heat exchanger and the first medium temperature chamber; A low-temperature side heat exchanger and a regenerator disposed between the low temperature chamber and the second medium temperature chamber, a communication chamber that communicates the first and second medium temperature chambers, the medium temperature side heat exchanger, and In a heat pump device comprising a switching valve that switches and supplies the heat transport medium of the low-temperature side heat exchanger to an indoor heat exchanger and an outdoor heat exchanger, respectively, and a pump that pumps the heat transport medium, the heat transport medium A heat pump device characterized in that a heat transport medium control means for controlling the flow rate or cooling amount of the heat transport medium is installed in the flow path system.