CN107327907A - A kind of hierarchical control hot-water heating system - Google Patents

Abstract

The invention discloses a layered control hot water system, which is characterized in that it comprises: hot water equipment and a circulation pump, a number of water pipelines are connected in parallel between the hot water outlet end and the return water end of the hot water equipment, and each water pipe There are cut-off valves and water points on the road, and each water pipeline and hot water equipment form a circulation loop, and the circulation pump is set on the hot water outlet or return water end of the hot water equipment. In actual work, according to the demand for hot water in each room or floor, open the corresponding shut-off valve and start the circulation pump to perform the preheating cycle, so that the hot water in the corresponding room or floor can be heated immediately, unlike the traditional one. As with technology, when a water point needs hot water, it is necessary to perform a preheating cycle on all water points in the entire house to realize personalized control of each room in a large apartment, and to realize instant heating according to user needs, so as to achieve The effect of comfort and energy saving.

Description

A stratified control hot water system

technical field

The invention relates to the technical field of water heaters, in particular to a layered control hot water system.

Background technique

Water heaters are tools that provide hot water for a limited range (such as: household), and are divided into gas water heaters, electric water heaters, solar water heaters, etc. according to the energy used to heat water. According to the different water supply pipes of the water heater, when the water point is turned on to use hot water, more or less there will be a period of cold water flowing out. In order to improve water comfort and save water resources, most of the existing technologies adopt a preheating cycle to avoid this section of cold water and realize instant heating. However, for some large-scale and villa-type users, there are many rooms and bathrooms, and the demand for instant heating is not necessarily the entire house. If you always maintain the instant heating of all water points in the entire house, it will cause a lot of resources. waste.

Contents of the invention

Aiming at the problems existing in the prior art, the object of the present invention is to provide a layered control hot water system that can realize instant heating on demand and energy saving.

To achieve the above object, the present invention adopts the following technical solutions.

A layered control hot water system, characterized in that it includes: hot water equipment and a circulation pump, a number of water pipelines are connected in parallel between the hot water outlet end and the return water end of the hot water equipment, and each water pipeline is equipped with The shut-off valve, the water point, each water pipeline and the hot water equipment form a circulation loop, and the circulation pump is arranged on the hot water outlet end or the return water end of the hot water equipment.

As a further description of the above solution, the circulating pump and the shut-off valve are both connected with a controller for signals.

As a further description of the above solution, the hot water equipment is a gas water heater, an electric water heater, a solar water heater or an air energy water heater.

As a further description of the above solution, the circulation pump is a frequency conversion water pump.

As a further description of the above scheme, a water storage tank is connected to the hot water outlet end of the hot water equipment, and each water pipeline is connected in parallel between the water storage tank and the return water end.

As a further description of the above scheme, a return pipe is connected between the water storage tank and the circulation pump, and a second shut-off valve is provided on the return water pipe. The hot water equipment, the water storage tank and the circulation pump constitute the heating circuit of the water storage tank .

As a further illustration of the above solution, a first temperature sensor is provided in the water storage tank.

As a further description of the above solution, a second temperature sensor is respectively provided on each water pipeline.

As a further illustration of the above scheme, the water points on each water pipe represent the water points of a room or a floor.

As a further description of the above solution, the controller is an independent controller or the controller is the main controller of the hot water equipment.

The beneficial effects of the present invention are:

1. Through multiple water pipelines and corresponding shut-off valves, the opening and closing of each water pipeline can be independently controlled, that is, the corresponding room or floor can be selectively preheated and the other rooms or floors are not. Preheat cycle. In actual work, according to the demand for hot water in each room or floor, open the corresponding shut-off valve and start the circulation pump to perform the preheating cycle, so that the hot water in the corresponding room or floor can be heated immediately, unlike the traditional one. As with technology, when a water point needs hot water, it is necessary to perform a preheating cycle on all water points in the whole house to realize personalized control of each room in a large apartment, and realize instant heating according to user needs, so as to achieve The effect of comfort and energy saving.

2. By setting up the water storage tank and the heating circuit of the water storage tank, there is always a large amount of hot water in the water storage tank, which can meet the needs of multiple hot water points to use hot water at the same time.

Description of drawings

Fig. 1 is a schematic structural diagram of a layered control hot water system provided by Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of the layered control hot water system provided by Embodiment 2 of the present invention.

Explanation of reference signs:

1: Hot water equipment, 2: Circulation pump, 3: Hot water outlet, 4: Return water end, 5: Water pipe, 6: Stop valve, 7: Water point, 8: Water storage tank, 9: Return pipe , 10: cut-off valve.

detailed description

In the description of the present invention, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Therefore, the definition of "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the present invention, the meaning of "at least" is one or more than one, unless otherwise expressly and specifically limit.

In the present invention, unless otherwise clearly specified and limited, if there are terms "assembled", "connected" and "connected", the terms should be interpreted in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral ground connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediary, or two components can be connected internally. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the invention, unless otherwise specified and limited, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, or that the first and second features are not in direct contact. contact but through another feature contact between them.

The technical solutions and beneficial effects of the present invention will be clearer and more definite by further describing the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification below. The embodiments described below by referring to the figures are exemplary for the purpose of explaining the present invention and should not be construed as limiting the present invention.

Embodiment one

As shown in Figure 1, a hierarchically controlled hot water system includes: hot water equipment 1, a circulation pump 2 and a controller. Water pipelines 5 are provided with shut-off valves 6 and water points 7 on each water pipeline 5, and each water pipeline 5 forms a circulation loop with the hot water equipment 1, and the circulation pump 2 is arranged on the hot water equipment 1 to output heat On the water end 3 or the return water end 4, the controller is connected to the circulation pump 2 and the shut-off valve 6 for control.

Wherein, the hot water equipment 1 is a gas water heater, the circulating pump 2 is a variable frequency water pump, the controller is the main controller of the hot water equipment 1, and the water points 7 on each water pipeline 5 represent a room or a Floor water points.

In actual work, according to the demand for hot water in each room or floor, open the corresponding shut-off valve and start the circulation pump 2 to carry out the preheating cycle, so that the hot water can be turned on and heated immediately in the corresponding room or floor. The layered control hot water system provided by this embodiment can independently control the opening and closing of each circulating waterway by opening and closing different cut-off valves, that is, it can selectively preheat the corresponding rooms or floors Circulation so that other rooms or floors do not carry out preheating cycle, unlike traditional technology, when a water point has hot water demand, it is necessary to perform preheating cycle on all water points in the whole house, so as to realize the individuality of each room of a large apartment It realizes instant heating according to the needs of users, so as to achieve the effect of comfort and energy saving.

In other embodiments, the hot water equipment can also be replaced by an electric water heater, a solar water heater or an air energy water heater, and the controller can also be a separate controller, which is not limited to this embodiment.

Embodiment two

As shown in Figure 2, the structure of the layered control hot water system provided in this embodiment is basically the same as that of Embodiment 1, the difference lies in:

1. A water storage tank 8 is connected to the hot water outlet 3 of the hot water device 1 , and each water pipeline 5 is connected in parallel between the water storage tank 8 and the return water end 4 .

2. A return pipe 9 is connected between the water storage tank 8 and the circulation pump 8, and a shut-off valve 10 is provided on the return pipe 9. The hot water equipment 1, the water storage tank 8, and the circulation pump 2 constitute the water storage tank heating circuit.

This embodiment provides a layered control hot water system. By setting the water storage tank and the water storage tank heating circuit, a large amount of hot water is always kept in the water storage tank, which can meet the requirements of using hot water at multiple hot water points at the same time. need.

Further, in order to accurately control the action timing of the circulating pump and each shut-off valve, preferably a first temperature sensor connected to the controller is provided in the water storage tank 8, and a first temperature sensor connected to the controller is preferably provided on each water pipeline 5 respectively. connected second temperature sensor.

Through the description of the above structure and principle, those skilled in the art should understand that the present invention is not limited to the above-mentioned specific embodiments, and that improvements and substitutions using known technologies in the art on the basis of the present invention all fall under the protection of the present invention. Scope, the protection scope of the present invention shall be defined by the terms of each claim and their equivalents.

Claims (10)

1. A layered control hot water system, characterized in that it comprises: hot water equipment and a circulation pump, a number of water pipelines are connected in parallel between the hot water outlet end and the return water end of the hot water equipment, and on each water pipeline A shut-off valve and a water point are provided, and each water pipeline and the hot water equipment form a circulation loop, and the circulation pump is arranged on the hot water outlet end or the return water end of the hot water equipment. 2. A stratified control hot water system according to claim 1, characterized in that, both the circulation pump and the shut-off valve are connected to a controller with signals. 3. A hierarchically controlled hot water system according to claim 1, wherein the hot water equipment is a gas water heater, an electric water heater, a solar water heater or an air energy water heater. 4. A stratified control hot water system according to claim 1, characterized in that the circulating pump is a variable frequency water pump. 5. A layered control hot water system according to claim 1, characterized in that a water storage tank is connected to the hot water outlet of the hot water equipment, and each water pipeline is connected in parallel between the water storage tank and the return water between the ends. 6. A layered control hot water system according to claim 5, characterized in that a return pipe is connected between the water storage tank and the circulation pump, and a second shut-off valve is arranged on the return pipe, the heat The water equipment, water storage tank and circulating pump constitute the heating circuit of the water storage tank. 7. A layered control hot water system according to claim 5, characterized in that a first temperature sensor is provided in the water storage tank. 8. A layered control hot water system according to claim 5, characterized in that a second temperature sensor is provided on each water pipeline. 9. A hierarchically controlled hot water system according to claim 1, wherein the water points on each water pipe represent the water points of a room or a floor. 10 . The hierarchically controlled hot water system according to claim 1 , wherein the controller is an independent controller or the controller is the main controller of the hot water equipment. 11 .