JPH04121561A - Refrigerant-pumping apparatus - Google Patents

Abstract

PURPOSE:To make compact the size of the title apparatus, to decrease the noise thereof, and to reduce the production cost thereof, by a method wherein a refrigerant pump is integrally held within an enclosed container having an inflow port and a discharge port, the liquid level of the refrigerant is set higher than the level of the intake of the refrigerant pump, and the function of a receiver is added to the enclosed container. CONSTITUTION:A refrigerant-pumping apparatus is composed of both an enclosed container 13 and a refrigerant pump 14 placed within the enclosed container 13. The enclosed container 13 has both an inflow pipe 15 which has a port 15A standing to the upper part of the enclosed container 13 and a discharge pipe 17 which is connected to an outlet 16 of the refrigerant pump 14. A definite amount of heat is applied to the refrigerant by a heating device, and the amount of refrigerant-circulation necessary for radiating a definite amount of the heat by a heat-radiating device is preset as the flow rate of the refrigerant pump 14. The inflow pipe 15 in the enclosed container 13 stands to the upper part thereof and a gaseous component is separated and while self-priming operation is being done, a liquid is fed from above. An inlet 18 of the refrigerant pump 14 is located at the bottom part of the enclosed container 13 and the liquid stored in the enclosed container 13 is effectively utilized to the end.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a refrigerant pump device for transporting refrigerant in an air conditioner using refrigerant.

BACKGROUND OF THE INVENTION In recent years, there has been an increasing demand for refrigerant pump devices used for transporting refrigerant in air conditioners to be more compact, have lower noise levels, and lower costs.

A conventional refrigerant pump device of this type is as shown in Fig. 3.
It was used as part of a heating air conditioning system.

This system includes a heating channel 32 for heating a refrigerant (not shown) and a ladder 33 to the top connected to the heating channel 32.
and a heater 35 having a lower header 34;
5, a gas pipe 38 through which the gas separated by the separator 37 flows out, a service valve 39 provided in the middle of the gas pipe 38, and a gas pipe 38. a gas-side cycle consisting of a radiator 40 connected to the radiator 4;
The refrigerant condensed at 0 passes through the liquid pipe 41 and reaches the service pulp 4.
2, reaches the receiver 43, is further pressurized from the suction port 45 of the refrigerant pump 44, and reaches the rudder 34 at the lower part of the heater 35 connected to the discharge port 46. It consisted of a refrigerant pump 44 and a receiver 43 necessary for stabilizing the flow rate of this refrigerant pump 44.

The operation of this conventional refrigerant pump device is such that a constant amount of heat is given to the refrigerant by the heater 35, and the flow rate of the refrigerant pump 44 is set so that the amount of refrigerant circulation required to radiate this heat by the radiator 4o is generated. When the refrigerant circulation flow rate fluctuates, such as during initial start-up, the receiver 43 operates to stabilize the flow rate, and further stabilizes the flow rate on the suction side of the refrigerant pump 44 (
The structure was designed to prevent the liquid from running out (liquid side).

Problems to be Solved by the Invention In such a conventional refrigerant pump device, the receiver 43 and the refrigerant pump 44 are separated, so a large space is required when assembling the device. Many of the pumps had relatively high noise levels, so it was necessary to provide soundproofing measures. In addition, in order to accommodate various installation forms in such a system, the refrigerant pump 44 needs to guarantee a high degree of self-priming (for example, 5 mA4 or more), but it is not possible to guarantee this simply by pump performance. If so, there would be problems in terms of manufacturing or cost.

The present invention solves the above-mentioned problems, and aims to provide a refrigerant pump device that can realize downsizing, noise reduction, and cost reduction of the refrigerant pump device.

Means for Solving the Problems In order to achieve the above object, the present invention includes a refrigerant pump that is integrally held in a closed container having an inlet and an outlet, so that the liquid level of the refrigerant is higher than one inlet of the refrigerant pump. Set it high enough,
This airtight container is configured to have a receiver function.

Effect of the present invention The refrigerant pump is integrally held in a sealed container with the above-described configuration, the liquid level of the refrigerant is set sufficiently higher than the suction port of the refrigerant pump, and the sealed container has a receiver function. Therefore, the refrigerant pump device itself is compactly constructed, and the pump sound is absorbed by the surrounding liquid, and the receiver wall becomes a soundproof wall, which increases the effect of reducing noise. Furthermore, since liquid is constantly replenished to the refrigerant pump suction port, high self-priming performance can be expected.

EXAMPLE Hereinafter, an example of a refrigerant pump device according to the present invention will be described with reference to FIGS. 1 and 2.

This refrigerant pump device is used by being incorporated into a heating air conditioning system as shown in FIG.

This system includes a heating channel 2 that heats the refrigerant, an upper header 3 connected to the heating channel 2, a heater 5 having a ladder 4 at the bottom, and a discharge pipe 6 from the ladder 3 to the top of the heater 5. A separator 7 connected to the separator 7 and a gas pipe 8 through which the gas separated by the separator tough flows out.
service pulp 9 installed in the middle, and gas pipe 8
The refrigerant condensed in the radiator 10 passes through the liquid pipe 11, passes through the service valve 12, and reaches the closed container 13, where the refrigerant contained in the closed container 13 is The refrigerant pump device consists of a closed container 13 and a refrigerant pump 14 built into the closed container 13. The container 13 stands up to the top of the closed container 13 and has an opening 15A.
The refrigerant pump 14 has an inlet pipe 15 that has an inflow pipe 15 , and an outflow pipe 17 that connects to a discharge port 16 of the refrigerant pump 14 .

The suction port 18 of the refrigerant pump 14 is located at the bottom of the closed container 13, and a dust filter 19 is provided on the front surface. Further, the power terminal 20 of the refrigerant pump 14 is connected to a hermetically sealed terminal 21 welded to the closed container 13 by a lead wire 22, and the refrigerant pump 14 is fixed in the closed container 13 with a metal fitting A23 and a metal fitting B24.

To explain the operation in the above configuration, the flow rate of the refrigerant pump 14 is set so that a certain amount of heat is given to the refrigerant by the heater 5, and the amount of refrigerant circulation necessary for radiating this amount of heat by the radiator 10 is generated. The airtight container 13 in which the refrigerant pump 14 is built has an inflow pipe 15 rising to the top, so that even if gas components are contained, they are separated and the liquid is stored from above while performing self-priming operation. . The suction port 18 of the refrigerant pump 14 is located at the lowest part of the closed container 13, so that the liquid accumulated in the closed container 13 can be effectively utilized to the end. Furthermore, the noise from the refrigerant pump 14 is absorbed by the liquid accumulated in the closed container 13 and is insulated by the closed container 13, so that the noise is significantly reduced.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the refrigerant pump is integrated in a sealed container that has a receiver function, so it is small, low cost, and has a low noise level. A low cost refrigerant pump device can be provided.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a heating air conditioning system using a refrigerant pump device according to an embodiment of the present invention, Fig. 2 is a schematic sectional view of the refrigerant pump device, and Fig. 3 is a heating air conditioning system using a conventional refrigerant pump device. It is a diagram of an air conditioning system for. 13... Sealed container, 14... Refrigerant pump, 15... Inflow pipe, 15A... Opening, 16... Discharge port, 17 ...outflow pipe,
18...Inhalation port. Name of agent: Patent attorney Akira Okaji Idiot 2/3--
- 8 M @ Todoroki 15-~ Inflow Kaya 17- Tamade! ,'61

Claims (1)

[Claims] The refrigerant pump includes a refrigerant pump built in a closed container, an inflow pipe having an opening in an upper part of the closed container, and an outflow pipe of the closed container connected to a discharge port of the refrigerant pump. A refrigerant pump device having a suction port provided in a lower part of the airtight container.