Solar water heating system
阅读说明:本技术 太阳能热水系统 (Solar water heating system ) 是由 范伟锋 陈平 叶妮 黄斌 雷卫良 伍志国 王金勇 陈业庚 于 2020-06-18 设计创作,主要内容包括:本申请提供一种太阳能热水系统,包括:太阳能集热器;循环管道,连接于太阳能集热器,循环管道上设有用于循环太阳能集热器内的热媒介质的循环泵;分户储热水箱,设于循环管道的循环路径上,以与循环于循环管道内的热媒介质换热;储液箱,设于太阳能集热器上方并连通外界,储液箱用于存储热媒介质;膨胀管,一端连接于储液箱,膨胀管另一端分别连通循环管道及太阳能集热器,膨胀管用于供循环管道和/或太阳能集热器内的热媒介质膨胀时进入储液箱内,且储液箱内的热媒介质能够经膨胀管进入循环管道及太阳能集热器内。本实施例的太阳能热水系统能常压运行,工作压力小,换热效率高,热媒介质的挥发和散热低,造价和运营成本低,且系统安全可靠。(The application provides a solar water heating system, includes: a solar heat collector; the circulating pipeline is connected with the solar heat collector and is provided with a circulating pump for circulating the heat medium in the solar heat collector; the household heat storage water tank is arranged on a circulation path of the circulation pipeline and exchanges heat with a heat medium circulating in the circulation pipeline; the liquid storage tank is arranged above the solar heat collector and communicated with the outside, and is used for storing a heat medium; one end of the expansion pipe is connected to the liquid storage tank, the other end of the expansion pipe is respectively communicated with the circulating pipeline and the solar thermal collector, the expansion pipe is used for allowing heat medium in the circulating pipeline and/or the solar thermal collector to expand and enter the liquid storage tank, and the heat medium in the liquid storage tank can enter the circulating pipeline and the solar thermal collector through the expansion pipe. The solar water heating system of this embodiment can the normal pressure operation, and operating pressure is little, and heat exchange efficiency is high, and the volatilization of heat medium and heat dissipation are low, and cost and operation cost are low, and system safe and reliable.)
1. A solar water heating system, comprising:
a solar heat collector;
the circulating pipeline is connected with the solar heat collector and is provided with a circulating pump for circulating the heat medium in the solar heat collector;
the household heat storage water tank is arranged on a circulation path of the circulation pipeline and exchanges heat with a heat medium circulating in the circulation pipeline;
the liquid storage tank is arranged above the solar heat collector and communicated with the outside, and is used for storing a heat medium;
one end of the expansion pipe is connected with the liquid storage tank, the other end of the expansion pipe is communicated with the circulating pipeline and the solar thermal collector respectively, the expansion pipe is used for supplying the circulating pipeline and/or the heat medium in the solar thermal collector enters the liquid storage tank during expansion, and the heat medium in the liquid storage tank can enter the circulating pipeline and the solar thermal collector through the expansion pipe.
2. The solar water heating system of claim 1, wherein the liquid storage tank is provided with a volatilization prevention pipe which is respectively communicated with the inside and the outside of the liquid storage tank, and an opening of the volatilization prevention pipe, which is far away from one end of the liquid storage tank, is arranged downwards.
3. A solar water heating system as claimed in claim 2, wherein the anti-evaporation pipe extends spirally upwards.
4. The solar water heating system of claim 1, wherein the solar collector has a first liquid outlet end and a first liquid inlet end, the circulation pipe is connected to the first liquid inlet end and the first liquid outlet end, respectively, and an end of the expansion pipe away from the liquid storage tank is connected to the circulation pipe and disposed at the first liquid outlet end.
5. The solar water heating system of claim 4, further comprising:
the first detection device is arranged on the circulating pipeline and positioned at the first liquid outlet end so as to obtain the temperature of the first liquid outlet end;
the second detection device is arranged on the circulating pipeline and is positioned at the first liquid inlet end so as to obtain the temperature of the first liquid inlet end;
and the electric controller is respectively and electrically connected with the circulating pump, the first detection device and the second detection device and can control the circulating pump according to the temperature difference between the temperature obtained by the first detection device and the temperature obtained by the second detection device.
6. A solar water heating system as claimed in claim 1, wherein the circulation pipe comprises:
the water supply pipe is connected with the solar heat collector and the expansion pipe and is connected with the household heat storage water tank so as to output a heat medium to the household heat storage water tank;
the same-pass pipe is connected with the household heat storage water tank to receive the heat medium output from the household heat storage water tank;
and the two ends of the water return pipe are respectively connected to one end of the same-path pipe and the solar heat collector.
7. The solar water heating system of claim 6, wherein the household heat storage water tank comprises a first tank body and a heat exchange pipe arranged in the first tank body, the heat exchange pipe is provided with a second liquid inlet end and a second liquid outlet end, the second liquid inlet end is connected to the water supply pipe, and the second liquid outlet end is connected to the co-route pipe.
8. The solar water heating system of claim 6, wherein the water supply pipe is provided with a first exhaust valve, and the in-line pipe is provided with a second exhaust valve.
9. A solar water heating system as claimed in any one of claims 1 to 8, wherein there are two circulation pumps, and two circulation pumps are connected in parallel to the circulation pipe.
10. The solar water heating system according to any one of claims 1 to 8, wherein the liquid storage tank comprises a second tank body, a liquid supplementing port for injecting a heating medium is formed in the second tank body, and a tank cover is arranged on the liquid supplementing port in a covering manner.
Technical Field
The application belongs to the technical field of solar equipment, and more specifically relates to a solar water heating system.
Background
Aiming at a solar centralized heat collection household heat storage hot water system, the two types are mainly used at present:
the open type normal-pressure hot water system is composed of a solar heat collector, a buffer water tank, a household heat storage water tank, a circulating pipeline and a circulating water pump, and has the main defects that the buffer water tank, the corresponding circulating pipeline and the circulating water pump are added, the manufacturing cost of the hot water system is increased, and meanwhile, the power consumption of the hot water system is also increased. In addition, the buffer water tank also participates in heat exchange work, the heat medium in the buffer water tank is easy to vaporize and volatilize when the temperature rises, the heat medium needs to be added continuously, and the later-stage operation cost is increased. And, buffer tank's setting has increased thermal giving off, and in the course of the work, buffer tank is heated earlier to the heat that solar collector collected, and rethread buffer tank and branch family heat storage water tank heat transfer, and heat exchange efficiency is very low, has caused very big energy waste.
The other type is a closed pressure-bearing hot water system consisting of a solar heat collector, an expansion tank, a household heat storage water tank, a circulating pipeline and a circulating water pump, when the solar heat collector is heated in the daytime, the temperature of a heat medium in the solar heat collector rises and the volume of the heat medium increases, expansion pressure can be generated on the solar heat collector and the circulating pipeline, the expansion tank can only absorb part of the increased pressure, the whole hot water system still has the danger of high temperature and high pressure, the problems of pipe explosion of the system, heat medium leakage, heat collection failure and the like are easily generated, the use risk is very high, and the service life of the hot water system. In addition, the expansion tank has higher manufacturing cost and increases the cost.
Disclosure of Invention
One of the purposes of the embodiment of the application is as follows: the utility model provides a solar water heating system, aims at solving among the prior art, hot water system's heat medium volatilizees fast, heat exchange efficiency is low and the technical problem that the use risk is high.
In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:
there is provided a solar water heating system comprising:
a solar heat collector;
the circulating pipeline is connected with the solar heat collector and is provided with a circulating pump for circulating the heat medium in the solar heat collector;
the household heat storage water tank is arranged on a circulation path of the circulation pipeline and exchanges heat with a heat medium circulating in the circulation pipeline;
the liquid storage tank is arranged above the solar heat collector and communicated with the outside, and is used for storing a heat medium;
one end of the expansion pipe is connected with the liquid storage tank, the other end of the expansion pipe is communicated with the circulating pipeline and the solar thermal collector respectively, the expansion pipe is used for supplying the circulating pipeline and/or the heat medium in the solar thermal collector enters the liquid storage tank during expansion, and the heat medium in the liquid storage tank can enter the circulating pipeline and the solar thermal collector through the expansion pipe.
In one embodiment, the liquid storage tank is provided with an anti-volatilization tube which is respectively communicated with the inside and the outside of the liquid storage tank, and an opening at one end, far away from the liquid storage tank, of the anti-volatilization tube is arranged downwards.
In one embodiment, the anti-volatilization tube extends spirally upward.
In one embodiment, the solar heat collector has a first liquid outlet end and a first liquid inlet end, the circulation pipeline is connected to the first liquid inlet end and the first liquid outlet end respectively, and one end of the expansion pipe far away from the liquid storage tank is connected to the circulation pipeline and arranged at the first liquid outlet end.
In one embodiment, the solar water heating system further comprises:
the first detection device is arranged on the circulating pipeline and positioned at the first liquid outlet end so as to obtain the temperature of the first liquid outlet end;
the second detection device is arranged on the circulating pipeline and is positioned at the first liquid inlet end so as to obtain the temperature of the first liquid inlet end;
and the electric controller is respectively and electrically connected with the circulating pump, the first detection device and the second detection device, and can judge the temperature difference between the temperature obtained by the first detection device and the temperature obtained by the second detection device to control the circulating pump.
In one embodiment, the circulation pipe includes:
the water supply pipe is connected with the solar heat collector and the expansion pipe and is connected with the household heat storage water tank so as to output a heat medium to the household heat storage water tank;
the same-pass pipe is connected with the household heat storage water tank to receive the heat medium output from the household heat storage water tank;
and the two ends of the water return pipe are respectively connected to one end of the same-path pipe and the solar heat collector.
In one embodiment, the household heat storage water tank comprises a first tank body and a heat exchange tube arranged in the first tank body, the heat exchange tube is provided with a second liquid inlet end and a second liquid outlet end, the second liquid inlet end is connected to the water feeding tube, and the second liquid outlet end is connected to the co-path tube.
In one embodiment, a first exhaust valve is arranged on the water supply pipe, and a second exhaust valve is arranged on the same-path pipe.
In one embodiment, the number of the circulating pumps is two, and the two circulating pumps are connected to the circulating pipeline in parallel.
In one embodiment, the liquid storage tank comprises a second tank body, a liquid supplementing port for injecting a heating medium is formed in the second tank body, and a tank cover is arranged on the liquid supplementing port in a covering mode.
The application provides a solar water heating system's beneficial effect lies in: compared with the prior art, this application sets up the liquid reserve tank through the top at solar collector, the liquid reserve tank passes through the expansion pipe and connects in circulating line and solar collector, can get into in the liquid reserve tank through expansion pipe upflow during the heat medium pressure boost expansion in solar collector and/or the circulating line, realize solar collector and/or circulating line's pressure release, and the liquid reserve tank communicates in the external world, thereby make solar collector can work under the ordinary pressure state, solar collector and circulating line's operating pressure has been reduced, avoid appearing the system and explode the pipe, heat medium reveals and the thermal-arrest inefficacy scheduling problem, whole system's security performance is improved. In addition, the circulating pump is used for driving the heating medium in the circulating pipeline to forcibly heat and exchange heat between the solar thermal collector and the household heat storage water tank, the heat exchange efficiency is high, the liquid storage tank does not exchange heat with the solar thermal collector, the temperature of the heating medium in the liquid storage tank is low, the condition of vaporization and volatilization of the heating medium is reduced, the heat emission of the system is reduced, the heat exchange efficiency is improved, and the manufacturing cost and the operation cost are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a solar water heating system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a liquid storage tank of a solar water heating system provided in an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
10-a solar heat collector; 11-a first liquid outlet end; 12-a first inlet end; 20-a circulation pipe; 21-a water supply pipe; 22-a co-pass tube; 23-a water return pipe; 30-household heat storage water tanks; 31-a first box; 32-heat exchange tubes; 321-a second liquid inlet end; 322-second liquid outlet end; 40-a liquid storage tank; 41-a second box; 411-fluid infusion port; 42-box cover; 50-an expansion pipe; 60-anti-volatilization tube; 61-opening; 70-a first detection device; 80-a second detection device; 90-an electric controller; 100-a circulating pump; 110-a first exhaust valve; 120-a second exhaust valve; 130-gate valve.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "connected," and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integrated; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or in an interaction relationship of the two components; similarly, "communication" may be direct communication or indirect communication through an intermediate medium. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.
Referring to fig. 1, a solar water heating system provided by an embodiment of the present application will be described. The embodiment of the application provides a solar water heating system is an open normal pressure hot water system, and comprises a
Specifically, in this embodiment, the heating medium is heated by the solar
In the embodiment of the application, the
In general, in the present embodiment, the solar
Specifically, in the present embodiment, the
In one embodiment, the top of the
Specifically, referring to fig. 2, the
More specifically, referring to fig. 2, the opening 61 of the
In one embodiment, referring to fig. 2, the
In one embodiment, referring to fig. 1, a
Specifically, one end of the
In one embodiment, referring to fig. 1, the solar water heating system further includes a
Specifically, in this embodiment, when the temperature difference between the first temperature and the second temperature is greater than or equal to the first preset value, it indicates that the cold water in the household heat
In one embodiment, referring to fig. 1, the
The solar water heating system in this embodiment is in a working mode of centralized heat collection and individual heat storage, the number of the individual heat
In one embodiment, referring to fig. 1, the household heat
Specifically, the
In one embodiment, referring to fig. 1, a
The on-
In one embodiment, please refer to fig. 1, two
Wherein, the two
In one embodiment, referring to fig. 2, the
In one embodiment, the operating principle of the solar water heating system is as follows: the liquid storage tank 40 is filled with a heat medium in the circulating pipeline 20 and the solar heat collector 10, when the sun exists in the daytime, the solar heat collector 10 heats the heat medium to raise the temperature of the heat medium, the electric controller 90 controls the circulating pump 100 according to the temperature difference between the first temperature acquired by the first detection device 70 and the second temperature acquired by the second detection device 80, when the temperature difference between the first temperature and the second temperature is greater than or equal to a first preset value, the electric controller 90 controls the circulating pump 100 to start, the high-temperature heat medium in the solar heat collector 10 is conveyed into the heat exchange pipes 32 of the household heat storage water tank 30 through the water supply pipes 21 to exchange heat, and the heat medium after heat exchange in the heat exchange pipes 32 sequentially flows back to the solar heat collector 10 through the same-path pipes 22 and the water return pipes 23; and when the temperature difference between the first temperature and the second temperature is smaller than or equal to a second preset value, the electric controller 90 controls the circulation pump 100 to be closed, and the circulation work of the heat medium is stopped. When the temperature difference between the first temperature and the second temperature is greater than or equal to the first preset value again, the
The above description is only directed to the working principle of the solar water heating system, and is not taken as the only limitation to the working process of the solar water heating system.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
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