CN216080137U - Multi-mode central heating and hot water supply system - Google Patents
Multi-mode central heating and hot water supply system Download PDFInfo
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- CN216080137U CN216080137U CN202122136855.5U CN202122136855U CN216080137U CN 216080137 U CN216080137 U CN 216080137U CN 202122136855 U CN202122136855 U CN 202122136855U CN 216080137 U CN216080137 U CN 216080137U
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Abstract
The utility model discloses a multi-mode central heating and hot water supply system, which comprises a circulating water path formed by communicating a heat source with a heat supply end of a plate heat exchanger; a water inlet at the heated end of the plate heat exchanger is communicated with a tap water pipe, and a water outlet is respectively communicated with a water inlet at the middle upper part and a water inlet at the lower part of the heat storage water tank through a third three-way valve; a main circulating pump is arranged on a pipeline from a water outlet at the heat supply end of the plate heat exchanger to a water inlet of a heat source; a zero cold water circulating pump and a water flow sensor are arranged on a water inlet pipeline at the heated end of the plate heat exchanger; the upper part and the lower part of the heat storage water tank are respectively provided with a temperature sensor. The utility model can realize the functions of heating and providing domestic hot water by matching with a control system. Especially in the aspect of providing domestic hot water, constant temperature and continuous hot water supply can be realized under the condition of large water consumption, and the frequent starting of a heat source can be avoided when water is used at a small flow rate, so that the service life of the whole machine is prolonged.
Description
Technical Field
The utility model relates to a household heating and hot water supply system, in particular to a multi-mode central heating and hot water supply system.
Background
At present, for residents with large areas, such as duplex residents, large-size residents, villas and the like, the requirements are met: 1. heating; 2. constant-temperature hot water is supplied continuously at multiple points and in large flow; 3. the zero cold water function can not be realized by only relying on a single device. The prior art has a single water supply mode, generally adopts a wall-mounted furnace or other heat sources as a main heat source, adopts an electric heating pipe or a heat exchanger as auxiliary heating, and provides heating and hot water for a system together. The system is complex in structure, the laying of pipelines and the investment of other accessory equipment are more, and the problem that hot water supply cannot keep up can occur under the state that a user continuously uses hot water at a large flow, so that the use experience of the user is greatly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a multi-mode central heating and water heating system which is easy to install, has low use and maintenance costs, and can realize heating and uninterrupted supply of high-flow constant-temperature hot water.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a multi-mode central heating and hot water supply system comprises a heat source, a plate heat exchanger and a heat storage water tank;
the heat source is communicated with the heat supply end of the plate heat exchanger to form a circulating water path; a water inlet at the heated end of the plate heat exchanger is communicated with a tap water pipe, and a water outlet is respectively communicated with a water inlet at the middle upper part and a water inlet at the lower part of the heat storage water tank through a first three-way valve;
temperature sensors are arranged on the water inlet pipeline and the water outlet pipeline of the heat source; temperature sensors are arranged on the water inlet pipeline and the water outlet pipeline of the heated end of the plate heat exchanger;
a main circulating pump is arranged on a pipeline from a water outlet at the heat supply end of the plate heat exchanger to a water inlet of a heat source;
a zero cold water circulating pump and a water flow sensor are arranged on a water inlet pipeline at the heated end of the plate heat exchanger;
and the upper part and the lower part of the heat storage water tank are respectively provided with a temperature sensor.
In some preferred embodiments, the water outlet end of the heat source is connected with a second three-way valve, and a coil heater is further arranged in the heat storage water tank;
and the second three-way valve is respectively communicated with a water inlet of the heat supply end of the plate heat exchanger and a water inlet of the coil heater to form a circulating water path.
In some preferred embodiments, a pressure sensor is arranged on the water outlet pipeline of the heat source.
In some preferred embodiments, the second three-way valve is respectively communicated with the water inlet of the heat supply end of the plate heat exchanger and the third three-way valve; and the third three-way valve is respectively communicated with the water inlet of the coil heater and the water inlet of the heating pipeline to form a circulating water path.
In some preferred embodiments, the system further comprises a four-way valve; the four-way valve is respectively communicated with a water outlet of the heat supply end of the plate heat exchanger, a water outlet of the coil heater, a water return port of the heating pipeline and a water inlet of a heat source; and a main circulating pump is arranged on a pipeline from the four-way valve to the heat source water inlet.
In some preferred embodiments, the first, second and third three-way valves are three-way switching valves.
In some preferred embodiments, an electric heating rod is further arranged at the upper end part in the heat storage water tank.
Advantageous effects
The system provided by the utility model has lower requirements on pipeline laying and auxiliary equipment, and can realize more convenient installation and simpler later maintenance; and the functions of heating and providing domestic hot water can be realized by matching with a control system. The constant-temperature and continuous hot water supply can be realized under the condition of large water consumption, and the frequent starting of a heat source can be avoided and the service life of the whole machine can be prolonged when water is used at a small flow. The water in the heat storage water tank is heated by various heating modes, and emergency heating can be performed by using an electric heating rod arranged in the heat storage water tank when emergency (such as air stopping) occurs.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another preferred embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another preferred embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, the utility model provides a multi-mode central heating and hot water supply system, which comprises a heat source 1, a plate heat exchanger 2 and a hot water storage tank 3;
the heat source 1 is communicated with the heat supply end of the plate heat exchanger 2 to form a circulating water path; a water inlet at the heated end of the plate heat exchanger 2 is communicated with a tap water pipe, and a water outlet is respectively communicated with a water inlet at the middle upper part and a water inlet at the lower part of the heat storage water tank 2 through a first three-way valve 8;
temperature sensors 4 are arranged on the water inlet pipeline and the water outlet pipeline of the heat source 1; temperature sensors 4 are arranged on the water inlet pipeline and the water outlet pipeline of the heated end of the plate heat exchanger 2;
a main circulating pump 5 is arranged on a pipeline from a water outlet at the heat supply end of the plate heat exchanger 2 to a water inlet of the heat source 1;
a zero cold water circulating pump 6 and a water flow sensor 7 are arranged on a water inlet pipeline at the heated end of the plate heat exchanger 2;
the upper part and the lower part of the heat storage water tank 3 are respectively provided with a temperature sensor 4.
It should be understood that the heat source of the present invention may be a wall-mounted boiler, an electric heater, or a solar heat source as long as it can provide hot water having a relatively high temperature. The temperature sensor 4 may be a different type of temperature sensor according to the use position, and the present invention is not limited thereto.
Example 2
The present embodiment is developed on the basis of embodiment 1, and as shown in fig. 2, the present embodiment provides an example of heating a water body in a hot-water storage tank, and specifically includes:
the water outlet end of the heat source 1 is connected with a second three-way valve 9, and a coil heater 10 is further arranged in the heat storage water tank 3; and the second three-way valve 9 is respectively communicated with a water inlet of the heat supply end of the plate heat exchanger 2 and a water inlet of the coil heater 10 to form a circulating water path.
At this time, the hot water with higher temperature coming out from the water outlet end of the heat source 1 flows through the coil heater 10, and heats the water body in the heat storage water tank 3 through the heat exchange effect.
In some preferred embodiments, in order to cooperate with a control system to better control the operating state of the coil heater 10, it is considered that a pressure sensor 11 is arranged on the water outlet pipeline of the heat source 1.
In other preferred embodiments, in order to assist in heating the water in the water tank and also to emergency heat the water in the water tank when an emergency situation, such as a gas cut-off, occurs, it is considered to provide an electrical heating rod 14 at the upper end of the hot water storage tank 3.
Example 3
The present embodiment is developed on the basis of embodiment 2, and as shown in fig. 3, this embodiment provides an example of a system having a heating function, and specifically includes:
the second three-way valve 9 is respectively communicated with a water inlet at the heat supply end of the plate heat exchanger 2 and a third three-way valve 12; and the third three-way valve 12 is respectively communicated with the water inlet of the coil heater 10 and the water inlet of the heating pipeline to form a circulating water path. At this time, the hot water of a relatively high temperature output from the wall-hanging stove 1 is output to the heating pipe for heating of the house in addition to the heat exchange with the water in the plate heat exchanger and the coil heater 10. By adopting the arrangement, the arrangement cost of pipelines and other auxiliary equipment is further reduced, and the later equipment maintenance is simple.
In some preferred embodiments, to further save the cost of piping and ancillary equipment required to construct the system, the system further comprises a four-way valve 13; the four-way valve 13 is respectively communicated with a water outlet at the heat supply end of the plate heat exchanger 2, a water outlet of the coil heater 10, a water return port of the heat supply pipeline and a water inlet of the wall-mounted furnace 1; at this time, the specific positions of the main circulation pump 5 are: and the four-way valve 13 is connected to a water inlet pipeline of the wall-mounted furnace 1.
It should be understood that, in order to cooperate with the control system, the flexibility of the water path structure of the system is fully exerted, so as to realize the multi-mode use of heating and hot water supply, and on the premise of providing better user experience for users, the energy and the system construction cost are saved, and the first three-way valve 8, the second three-way valve 9 and the third three-way valve 12 are all considered to be set as three-way switching valves.
Example 6
The present embodiment is developed on the basis of embodiments 1 to 5, and the present embodiment provides an example of implementing multi-mode use of the present system by using a control system, which specifically includes:
the utility model mainly comprises a heating mode and a hot water mode when in work;
1. heating mode
And only when the temperature sensed by the temperature sensor 4 on the upper part of the hot water storage tank 3 reaches the set requirement, the heating mode is entered. When the temperature sensor 4 at the water outlet end of the heat source 1 detects that the water temperature is n degrees lower than the set heating temperature, the main circulating pump 5 is started to operate, and the heat source 1 is ignited to work. The heating water is pumped back from the heating system to enter the four-way valve 13, the main circulating pump 5 and the heat source 1, and then enters the heating system for circulation after being heated through the second three-way valve 9 and the third three-way valve 12. When the water temperatures detected by the water outlet end temperature sensor 4 of the heat source 1 and the water inlet end temperature sensor 4 of the wall-mounted heat source 1 do not reach set values, the whole heating system can work all the time, and when the water temperatures detected by the water outlet end temperature sensor 4 of the heat source 1 and the water inlet end temperature sensor 4 of the heat source 1 reach set values, heating can stop.
2. A hot water mode: external water-free and heat-preservation state
Firstly, the hot water storage tank 3 is fully filled with water, when the water temperature detected by the temperature sensor 4 on the upper part of the hot water storage tank 3 or the temperature sensor 4 on the lower part of the hot water storage tank 3 is lower than the set temperature n degrees, the main circulating pump 5 is started to operate, and the heat source 1 is ignited to work. Heated water output by the heat source 1 flows through the second three-way valve 9 and the third three-way valve 12, the heated water enters the coil heater 10 through switching of the third three-way valve 12 to heat water in the heat storage water tank 3, the water after heat exchange flows through the four-way valve 13 and the main circulating pump 5 and finally enters the heat source 1 again to be heated, and the circulation is repeated until the temperature sensor 4 on the upper portion of the heat storage water tank 3 or the temperature sensor 4 on the lower portion of the heat storage water tank 3 reaches a set value, and the main circulating pump 5 and the heat source 1 stop working.
3. A hot water mode: external small water consumption state
When the outside uses hot water, cold water enters the system through a tap water inlet, firstly flows through the water flow sensor 7, judges the flow of the cold water, and heats the cold water in the following way if the cold water is judged to be small:
by the heating end, the running water flows through zero cold water circulating pump 6, intake temperature sensor 4, water flow sensor 7, plate heat exchanger 2, play water temperature sensor 4, first three-way valve 8, through the lower part water inlet of the last heat storage water tank 3 of the switching of first three-way valve 8, and this in-process, the running water is only through plate heat exchanger 2 to it goes on not to have the heat transfer.
And at the heating end, heated water is heated by the heat source 1 and then output, flows through the water outlet end temperature sensor 4 of the heat source 1, the pressure sensor 11, the second three-way valve 9, the third three-way valve 12, the coil heater 10, the four-way valve 13, the main circulating pump 5 and the water inlet end temperature sensor 4 of the heat source 1, and finally returns to the heat source 1 again.
4. A hot water mode: outside water using state in large quantity
When hot water is used from the outside, cold water enters the system through a tap water inlet, firstly flows through the water flow sensor 7, judges the flow of the cold water, and heats the cold water in the following way if the cold water is judged to be large-flow:
by the heating end, running water flows through zero cold water circulating pump 6, intake temperature sensor 4, water flow sensor 7, plate heat exchanger 2, and after the running water was heated by plate heat exchanger 2, through outlet water temperature sensor 4, first three-way valve 8, through the well upper portion water inlet of first three-way valve 8 switching heat storage water tank 3 at last.
And at the heating end, heated water is heated by the heat source 1 and then output, flows through the water outlet end temperature sensor 4 of the heat source 1, the second three-way valve 9, the plate heat exchanger 2, the four-way valve 13, the main circulating pump 5 and the water inlet end temperature sensor 4 of the heat source 1, and finally returns to the heat source 1 again.
5. A hot water mode: zero cold water condition
When the water temperature of the hot water circulation pipeline is reduced to a set value, the zero-cold water circulation pump 6 is started, and circulating return water reaches a tap water inlet through an external three-way joint, so that the circulating return water enters the system. The circulating backwater flows through the zero cold water circulating pump 6, the inlet water temperature sensor 4, the water flow sensor 7 and the plate heat exchanger 2, only passes through the plate heat exchanger 2 in the state, does not have the heat exchange and outlet water temperature sensor 4 and the first three-way valve 8, and finally passes through the lower water inlet of the heat storage water tank 3 through the switching of the first three-way valve 8. Meanwhile, hot water in the heat storage water tank 3 flows out of the hot water pipeline through the water outlet and is stored in the hot water pipeline, so that the requirement that hot water is supplied once a user opens a faucet is met.
In the above-mentioned process, if 3 upper portion temperature sensor 4 of heat storage water tank or 3 lower part temperature sensor 4 of heat storage water tank detected the temperature and did not reach the setting value, then the heating end can start work, and the flow is as follows:
the main circulating pump 5 is started to operate, and the heat source 1 is ignited to work. Heated water output by the heat source 1 flows through the second three-way valve 9 and the third three-way valve 12, the heated water enters the coil heater 10 through switching of the third three-way valve 12 to heat water in the heat storage water tank 3, the water after heat exchange flows through the four-way valve 13 and the main circulating pump 5 and finally enters the heat source 1 again to be heated, and the circulation is repeated until the temperature sensor 4 on the upper portion of the heat storage water tank 3 or the temperature sensor 4 on the lower portion of the heat storage water tank 3 reaches a set value, and the main circulating pump 5 and the heat source 1 stop working.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. A multi-mode central heating and hot water supply system is characterized in that: comprises a heat source (1), a plate heat exchanger (2) and a heat storage water tank (3);
the heat source (1) is communicated with the heat supply end of the plate type heat exchanger (2) to form a circulating water path; a water inlet at the heated end of the plate heat exchanger (2) is communicated with a tap water pipe, and a water outlet is respectively communicated with a water inlet at the middle upper part and a water inlet at the lower part of the heat storage water tank (3) through a first three-way valve (8);
temperature sensors (4) are arranged on the water inlet pipeline and the water outlet pipeline of the heat source (1); temperature sensors (4) are arranged on the water inlet pipeline and the water outlet pipeline of the heated end of the plate heat exchanger (2);
a main circulating pump (5) is arranged on a pipeline from a water outlet at the heat supply end of the plate heat exchanger (2) to a water inlet of the heat source (1);
a zero cold water circulating pump (6) and a water flow sensor (7) are arranged on a water inlet pipeline at the heated end of the plate heat exchanger (2);
the upper part and the lower part of the heat storage water tank (3) are respectively provided with a temperature sensor (4).
2. A multi-mode central heating and hot water supply system according to claim 1, wherein: the water outlet end of the heat source (1) is connected with a second three-way valve (9), and a coil heater (10) is arranged in the heat storage water tank (3);
and the second three-way valve (9) is respectively communicated with a water inlet of a heat supply end of the plate heat exchanger (2) and a water inlet of the coil heater (10) to form a circulating water path.
3. A multi-mode central heating and hot water supply system according to claim 2, wherein: and a water outlet pipeline of the heat source (1) is provided with a pressure sensor (11).
4. A multi-mode central heating and hot water supply system according to claim 3, wherein: the second three-way valve (9) is respectively communicated with a water inlet of a heat supply end of the plate heat exchanger (2) and the third three-way valve (12); and the third three-way valve (12) is respectively communicated with a water inlet of the coil heater (10) and a water inlet of the heating pipeline to form a circulating water path.
5. A multi-mode central heating and hot water supply system according to claim 4, wherein: the system also includes a four-way valve (13); the four-way valve (13) is respectively communicated with a water outlet of a heat supply end of the plate heat exchanger (2), a water outlet of the coil heater (10), a water return port of a heat supply pipeline and a water inlet of the heat source (1); and a main circulating pump (5) is arranged on a pipeline from the four-way valve (13) to a water inlet of the heat source (1).
6. A multi-mode central heating and hot-water supply system according to claim 4 or 5, wherein: the first three-way valve (8), the second three-way valve (9) and the third three-way valve (12) are all three-way switching valves.
7. A multi-mode central heating and hot water supply system according to claim 1, wherein: the upper end part in the heat storage water tank (3) is also provided with an electric heating rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122136855.5U CN216080137U (en) | 2021-09-06 | 2021-09-06 | Multi-mode central heating and hot water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122136855.5U CN216080137U (en) | 2021-09-06 | 2021-09-06 | Multi-mode central heating and hot water supply system |
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| Publication Number | Publication Date |
|---|---|
| CN216080137U true CN216080137U (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122136855.5U Active CN216080137U (en) | 2021-09-06 | 2021-09-06 | Multi-mode central heating and hot water supply system |
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| CN (1) | CN216080137U (en) |
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2021
- 2021-09-06 CN CN202122136855.5U patent/CN216080137U/en active Active
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