CN205448267U - Central hot water system - Google Patents

Abstract

The utility model relates to the technical field of fluid heaters with heat sources, in particular to a central hot water system. It includes a heating main unit, a heating water tank connected to the heating main unit, a water inlet pipe and a water outlet pipe. The water inlet pipe is provided with a cold water inlet, and the water outlet pipe is provided with at least one hot water outlet. The water inlet pipe and the water outlet pipe are respectively connected to the heating The water tank connection also includes a hot water storage tank. The hot water storage tank is connected to the heating water tank through a heating pipe. The hot water storage tank is respectively connected to the water inlet pipe and the water outlet pipe. An inverted circulation pump is provided, solenoid valves are respectively provided between the hot water storage tank, the water inlet pipe and the water outlet pipe, a cold water pipe is provided between the cold water inlet and the hot water outlet, and the water outlet pipe Electromagnetic control valves are respectively provided at the place connected to the hot water outlet and the place where the cold water pipe is connected to the hot water outlet. The utility model provides a central hot water system with simple structure and intelligent operation.

Description

central hot water system

technical field

The utility model relates to the technical field of fluid heaters with heat sources, in particular to a central hot water system.

Background technique

With the improvement of modern living standards and the acceleration of the pace of life, consumers' requirements for bathing comfort have changed from simple hot water to large flow of hot water, constant water temperature, and no waiting time. Traditional instant water heaters The water output is limited by the heating power of the water heater. When using hot water, you need to let go of the cold water in the pipeline first. Waiting for hot water also causes waste of water resources. Moreover, when the external conditions change, the water temperature tends to fluctuate from hot to cold, and the bathing comfort is low. , while the volumetric water heater solves the problem of water output and temperature fluctuations, but because there is no instant heating function, it must be heated in advance before use, and the waiting time is long.

Contents of the invention

In order to overcome the shortcomings of the background technology, the utility model provides a central hot water system with simple structure and intelligent operation. A hot water storage tank is installed on the hot water system to realize the series or parallel connection of the heating water tank and the hot water storage tank. The hot water system realizes not only the heating advantages of the instantaneous water heater, but also the advantages of large flow of water and constant water temperature of the volumetric water heater, and improves the user's bathing comfort.

The technical scheme of the utility model is: a central hot water system, including a heating main unit, a heating water tank connected to the heating main unit, a water inlet pipe and an outlet pipe, the inlet pipe is provided with a cold water inlet, and the outlet pipe is provided with At least one hot water outlet, the water inlet pipe and the water outlet pipe are respectively connected to the heating water tank, and at least one hot water storage tank is also included. The hot water storage tank is connected to the heating water tank through a heating pipe, and the hot water storage tank They are respectively connected to the water inlet pipe and the water outlet pipe. The water inlet pipe is provided with a pouring circulation pump, and a solenoid valve is respectively provided between the hot water storage tank, the water inlet pipe and the water outlet pipe. The cold water inlet A cold water pipe is provided between the hot water outlet and the place where the outlet pipe is connected to the hot water outlet and the place where the cold water pipe is connected to the hot water outlet is respectively provided with an electromagnetic control valve, and the highest point of the outlet pipe is provided with an automatic drain. An air valve, and a return water circulation pump is arranged between the water inlet pipe and the water outlet pipe.

As a preferred technical solution, the hot water storage tank is an insulated hot water storage tank.

As a preferred technical solution, there are three hot water storage tanks and the three hot water storage tanks are connected in series through water pipes, and the pouring circulation pump is set to the second gear.

As a preferred technical solution, there are five hot water storage tanks and the five hot water storage tanks are connected in series through water pipes, and the pouring circulation pump is set to 3rd gear.

As a preferred technical solution, a three-way solenoid valve is provided at the interconnection of the hot water storage tank, the heating water tank and the water outlet pipe.

As a preferred technical solution, an expansion tank is provided at the cold water inlet of the water inlet pipe.

The beneficial effects of the utility model are: in the hot water system, a plurality of hot water storage tanks are set, when the system is heating, an internal circulation is formed between the hot water storage tanks and the heating water tank, and cold water enters the hot water storage through the water inlet pipe In the tank, the water pump sends the cold water in the hot water storage tank into the heating water tank for heating. After heating, it will automatically return to the hot water storage tank for heat preservation and standby to ensure that there is hot water at the hot water outlet anytime and anywhere. When hot water needs to be drained of the cold water in the pipeline first, waiting for hot water will cause waste of water resources at the same time, and there will be no phenomenon that the water temperature fluctuates when the external conditions change. This hot water system has a simple structure and saves resources. And people have a high degree of comfort when using it.

The embodiment of the utility model will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the pipeline schematic diagram of the utility model embodiment;

Fig. 2 is a schematic diagram of the system heating stage of the utility model embodiment;

Fig. 3 is a schematic diagram of the system water supply stage of the embodiment of the utility model.

detailed description

A central hot water system as shown in Figures 1-3 includes a heating main unit 1, a heating water tank 2 connected to the heating main unit 1, a water inlet pipe 3 and a water outlet pipe 4, and the water inlet pipe 3 is provided with a cold water inlet The water outlet 31 and the water outlet pipe 4 are provided with at least one hot water outlet 41, the water inlet pipe 3 and the water outlet pipe 4 are respectively connected to the heating water tank 2, and at least one hot water storage tank 5 is also included. The hot water storage tank 5 It is connected to the heating water tank 2 through a heating pipe 51, and the hot water storage tank 5 is connected to the water inlet pipe 3 and the water outlet pipe 4 respectively. The water inlet pipe 3 is provided with a pouring circulation pump 6, and the heat storage A solenoid valve 7 is respectively provided between the water tank 5, the water inlet pipe 3 and the water outlet pipe 4, and a cold water pipe 8 is provided between the cold water inlet 31 and the hot water outlet 41, and the water outlet pipe 4 is connected to the hot water The water outlet 41 and the cold water pipe 8 are connected to the hot water outlet 41. An electromagnetic control valve 9 is respectively provided. The highest point of the water outlet pipe 4 is provided with an automatic exhaust valve 10. A backwater circulation pump 11 is provided between them.

In the embodiment of the present utility model, the hot water storage tank 5 is an insulated hot water storage tank.

In the embodiment of the present utility model, there are three hot water storage tanks 5 and the three hot water storage tanks are connected in series through the water pipe 14, and the pouring circulation pump 6 is set to the second gear.

In the embodiment of the present utility model, there are five hot water storage tanks 5 and the five hot water storage tanks are connected in series through the water pipe 14, and the pouring circulation pump 6 is set to the third gear.

In the embodiment of the present utility model, a three-way solenoid valve 12 is provided at the joints of the hot water storage tank 5 , the heating water tank 2 and the water outlet pipe 4 .

In the embodiment of the present utility model, an expansion tank 13 is provided at the cold water inlet 31 of the water inlet pipe 3 .

As shown in Figure 2, in the heating stage of the hot water system, an internal circulation is formed between the hot water storage tank 5 and the heating water tank 2, cold water enters the hot water storage tank 5 through the water inlet pipe 3, and the water pump transfers the hot water storage tank 5 The cold water inside is sent into the heating water tank 2 for heating, and after heating, it automatically returns to the heat storage tank 5 for further insulation.

As shown in Figure 3, in the water supply stage of the hot water system, when the system supplies water, the built-in solenoid valve will automatically close the internal circulation circuit according to the situation, and the tap water enters the hot water storage tank 5 and the heating water tank 2 from the cold water inlet 31, The hot water in the heating water tank 2 and the hot water storage tank 5 is pressed out and supplied to the water terminal.

In the above scheme, multiple hot water storage tanks 5 are installed in the hot water system. When the system is heating, an internal circulation is formed between the hot water storage tanks 5 and the heating water tank 2, and cold water enters the hot water storage tanks 5 through the water inlet pipe 31. Inside, the water pump sends the cold water in the hot water storage tank 5 into the heating water tank 2 for heating. After heating, it will automatically return to the hot water storage tank 5 for insulation and standby, so as to ensure that the hot water outlet 41 has hot water anytime and anywhere, and will not When using hot water, it is necessary to let go of the cold water in the pipeline first, and wait for the hot water to cause waste of water resources at the same time, and there will be no phenomenon that the water temperature fluctuates when the external conditions change, and the system is intelligent, hot and cold The water system has a simple structure, saves resources and has high comfort for people when using it.

Notes to all technical personnel: Although the utility model has been described according to the above-mentioned specific embodiments, the inventive idea of the utility model is not limited to this invention, and any modification using the idea of the utility model will be included in the protection scope of the patent right Inside.

Claims (6)

1. A central hot water system, comprising a heating main unit, a heating water tank connected to the heating main unit, a water inlet pipe and a water outlet pipe, the water inlet pipe is provided with a cold water inlet, and the water outlet pipe is provided with at least one hot water outlet , the water inlet pipe and the water outlet pipe are connected to the heating water tank respectively, and it is characterized in that: it also includes at least one hot water storage tank, the described hot water storage tank is connected with the heating water tank through a heating pipe, and the described hot water storage tank is connected with the heating water tank respectively. The water inlet pipe and the water outlet pipe are conductively connected, the water inlet pipe is provided with a pouring circulation pump, and the hot water storage tank is respectively provided with a solenoid valve between the water inlet pipe and the water outlet pipe, and the cold water inlet and the hot water A cold water pipe is provided between the water outlets, and electromagnetic control valves are respectively provided at the place where the water outlet pipe is connected to the hot water outlet and where the cold water pipe is connected to the hot water outlet, and the highest point of the water outlet pipe is provided with an automatic exhaust valve , A return water circulation pump is provided between the water inlet pipe and the water outlet pipe. 2. The central hot water system according to claim 1, wherein the hot water storage tank is an insulated hot water storage tank. 3. The central hot water system according to claim 1 or 2, characterized in that: there are three hot water storage tanks and the three hot water storage tanks are connected in series through water pipes, and the pouring circulation pump is set as 2nd gear. 4. The central hot water system according to claim 1 or 2, characterized in that: there are five hot water storage tanks and the five hot water storage tanks are connected in series through water pipes, and the pouring circulation pump is set as 3 gears. 5. The central hot water system according to claim 1 or 2, characterized in that: a three-way solenoid valve is provided at the interconnection of the hot water storage tank, the heating water tank and the water outlet pipe. 6. The central hot water system according to claim 1, wherein an expansion tank is provided at the cold water inlet of the water inlet pipe.