JPS58219364A - Waste-heat utilization type water heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a water heating device using waste heat, and in particular, when using all refrigerators with a small amount of waste heat, one hot water storage tank and multiple refrigerators, and one refrigerator with a large amount of waste heat are used. When using all the machines, one hot water storage tank and one refrigerator are a good combination of heating characteristics -+E? It is an object of the present invention to provide a removable hem bouquet in the refrigerant circuit of the refrigerator so that it can be constructed to increase IWl in an industrial complex.

Hereinafter, the present invention will be explained based on the embodiment shown in the drawings. Figs. 1 and 2 show an exhaust heat utilization type water heating system using two heat exchangers. 1 shows a configuration with one refrigerator with a large amount of exhaust heat and one hot water storage tank, and FIG. 2 shows a configuration with two refrigerators with a small amount of non-heat amount and 4 hot water storages.

First, to explain the entire embodiment of FIG. 1, the tilt compressor (21, condenser (3), expansion valve (4), and evaporator (5)
? Refrigerant circuit (6) by connecting piping in sequence? The constituent refrigerator O+71181 is the compressor (2) of the refrigerant circuit (6).
) and the condenser (3) are two systems of high-temperature MIE side refrigerant piping (9) qα.

(111 is the heat exchanger +71+81, hot water storage tank (1
z1 and the circulation pump t131 are sequentially connected to each other by piping, and the water in the drought circuit ttn is heated by the high-temperature, high-pressure side refrigerant piping +91Qα of the refrigerant circuit (6) in the heat converter +71+81, respectively, and becomes hot water. After storing water in the hot water storage tank ++21, if necessary, hot water is supplied from the hot water supply pipe provided at the top of the storage tank α2 (old), and hot water is supplied from the fL food water supply pipe (1ω) provided at the bottom of the storage tank α2. (I6) and +171 are a safety valve and an air vent valve installed in the hot water supply pipe t141. (I level is a pressure reducing check valve installed in the water supply pipe (2). .

Therefore, θ9 is a header detachably installed between the compressor (2) and heat exchanger +71+81 and between the condenser (3) and heat exchanger +71+81 of the refrigerant circuit (6). In addition, the embodiment shown in FIG. 2 is a refrigerator [1'l k 2
In this case, the refrigerant circuit (6
) header f+9) ((a) is removed and the refrigerant circuit +61+61 is installed.

In the exhaust heat utilization type hot water system constructed in this way, between the compressor (2) of the refrigerant circuit (6) and the heat exchanger +7 Since headers (t! It) ω are installed between +71 and +81, respectively, so that they can be attached and detached at will, when using a refrigerator (1) with a large amount of exhaust heat, one refrigerator 11) and 1121 hot water storage tanks, When using a refrigerator with a small amount of exhaust heat + 1'lk, various combinations of capacities corresponding to the capacity of the hot water storage tank I]2, such as multiple refrigerators (1) and 121 hot water storage tanks, are used, for example, 10.5 IP.
Not only a 10F or 15JP refrigerator, but also a combination of two 5IP refrigerators, 5IP and 7.5F or 5F and 10HP, etc. can be easily configured at the work site for a storage tank with good heating characteristics. Exhaust heat utilization type water heating device? This is what we provide.

Moreover, FIG. 6 and FIG. 4 show another embodiment, in which the number of heat exchangers +7') vi is provided, and two systems are provided for this heat exchanger (high temperature and high pressure 1111 refrigerant piping in 71 + 91 uol'). .In this case, as in Figures 1 and 2, if you are using a refrigerator fllk with a large amount of waste heat, you can install a header (1) and connect one refrigerator (1) and hot water storage. Tanks (1211 units, 11'lk refrigerators with small exhaust heat)
When used, the header f19 is removed and a configuration consisting of a plurality of refrigerators (1') and one hot water storage tank a2) is constructed.

As described above, the present invention provides an exhaust heat utilization type water heating device configured by connecting a refrigerant circuit and a hot water circuit to a heat converter in an efficient heat exchange manner. song with,
And between the condenser and heat exchanger, the header can be attached or removed at will, and if there is one refrigerator making up the refrigerant circuit, the header can be installed, and if there are multiple refrigerators, the header can be installed. Since there are two or more systems of refrigerant piping between the headers that are removed to form the refrigerant circuit and the heat exchanger is connected, there is no need to attach or remove the headers, and the refrigerant has a small amount of exhaust heat. If using one hot water storage tank and multiple refrigerators, if using a refrigerator with a large amount of exhaust heat, one hot water storage tank
Is it a good combination of heating characteristics such as one unit and one refrigerator? The purpose is to provide an exhaust heat-utilizing water heating system that can be easily constructed on the ground by selecting and operating as appropriate.

[Brief explanation of the drawing]

FIGS. 1 and 2 are circuit diagrams of a hot water system using waste heat that shows one embodiment of the present invention, and FIGS. 6 and 4 are circuit diagrams of a hot water system that uses waste heat that shows other embodiments of the present invention. . mti'+... Refrigerator, (2)... Compressor, (3)
...Condenser, +41...Expansion valve, ;51...Evaporator, (6)...Refrigerant circuit, (71+81...Heat exchanger, +91QO1...High temperature and high pressure side?9 Medium piping , old 1・
...Hot water circuit, (121...Hot water storage tank, U...Circulation pump, !3 (20)...Header〇

Claims (1)

[Claims] (1) A refrigerator in which a compressor, a condenser, a throttle V device, and an evaporator are connected in sequence to form a refrigerant circuit, and heat exchange is performed in the high-temperature, high-pressure side refrigerant piping between the compressor and condenser of this refrigerator. The heat exchanger, hot water storage tank, and circulation pump are used to heat the water flowing through the heat exchanger using the refrigerant piping.
A hot water circuit configured by sequential piping connections? In the exhaust heat utilization type water heating apparatus, there are generally detachable headers between the compressor and the heat exchanger of the refrigerant circuit and between the condenser and the heat exchanger, and the refrigerating machine. If there is only one refrigerator, install the header to complete the refrigerant circuit, and if there are multiple refrigerators, remove the header to form the refrigerant circuit and connect the heat exchanger to the refrigerant circuit. An exhaust heat utilization type hot water device characterized by having two or more systems of refrigerant piping between the en headers.