CN211476085U - Backwater control system and circulating water heating system - Google Patents
Backwater control system and circulating water heating system Download PDFInfo
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- CN211476085U CN211476085U CN201922143497.3U CN201922143497U CN211476085U CN 211476085 U CN211476085 U CN 211476085U CN 201922143497 U CN201922143497 U CN 201922143497U CN 211476085 U CN211476085 U CN 211476085U
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- water pump
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Abstract
The utility model discloses a return water control system and circulating water heating system, return water control system includes circulating water pump, flywheel energy memory, first switch, second switch, voltage detection device and controller. The circulating water pump is arranged on the water return side of the heating equipment and comprises a power supply input end, and the power supply input end is connected with a power supply; the first end of the flywheel energy storage device is connected with a power supply, and the second end of the flywheel energy storage device is connected with the power supply input end of the circulating water pump; the first switch is arranged between the power supply input end of the circulating water pump and the power supply; the second switch is arranged between the second end of the flywheel energy storage device and the power supply input end of the circulating water pump; the voltage detection device is used for detecting the power supply voltage of the power supply; and the controller is respectively connected with the voltage detection device, the first switch and the second switch. When the circulating water pump is suddenly powered off, the system can maintain the running of the circulating water pump, reduce the pressure of circulating water and prevent heating equipment from being damaged.
Description
Technical Field
The utility model belongs to the technical field of the circulating water heating technique and specifically relates to a return water control system and circulating water heating system are related to.
Background
For heating of a small unit, a circulating water heating mode is usually adopted, wherein a circulating water pump mainly acts on a return water system and pumps heating return water to a return water system or a water cooling tower of the heating system. However, when the circulating water pump suddenly fails, the return water pressure of the heating system is suddenly increased, so that the heating equipment of a user is damaged, and meanwhile, in the existing circulating water heating system, once the circulating water pump fails, an operator is usually required to manually close the outlet door, so that the time is long, the damage probability of heating facilities of the user is high, or if the total station fails, the time for closing the outlet door is long, and the heating equipment is easily damaged.
Disclosure of Invention
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a return water control system, this system can maintain the circulating water pump operation when circulating water pump has a power failure suddenly, reduces circulating water pressure, prevents that heating equipment from damaging.
The utility model discloses a second purpose lies in providing a circulating water heating system.
In order to solve the above problem, the utility model discloses return water control system of first aspect embodiment includes: the circulating water pump is arranged on the water return side of the heating equipment and comprises a power supply input end, and the power supply input end is connected with a power supply; the first end of the flywheel energy storage device is connected with the power supply, and the second end of the flywheel energy storage device is connected with the power supply input end of the circulating water pump; the first switch is arranged between the power supply input end of the circulating water pump and the power supply; the second switch is arranged between the second end of the flywheel energy storage device and the power supply input end of the circulating water pump; the voltage detection device is used for detecting the power supply voltage of the power supply; the controller is respectively connected with the voltage detection device, the first switch and the second switch; when the supply voltage is less than a voltage threshold, the first switch is open and the second switch is closed.
According to the utility model discloses return water control system, through setting up flywheel energy memory, when circulating water pump normal operating, power supply supplies power to flywheel energy memory, flywheel energy memory carries out the electric energy and stores, and simultaneously, voltage detection device real-time supervision return water control system's voltage, when supply voltage is less than the voltage threshold value, need not manual operation, the original power supply of can directly breaking off will the controller, discharge through flywheel energy memory, be the circulating water pump power supply by flywheel energy memory, maintain circulating water pump operation, reduce circulating water pressure, thereby effectively avoid heating equipment to damage.
In some embodiments, the water return control system further comprises: the third switch is arranged between the first switch and the power supply and used for acting according to a first operation instruction; and the fourth switch is arranged between the first end of the flywheel energy storage device and the power supply and is used for acting according to a second operation instruction.
In some embodiments, an electric door is arranged on the outlet side of the circulating water pump, and a driving motor of the electric door is connected with the third end of the flywheel energy storage device.
In some embodiments, the flywheel energy storage device comprises: the motor/generator is electrically connected with the power supply and the circulating water pump respectively, and the motor/generator is connected with the flywheel rotor.
In some embodiments, the flywheel energy storage device further includes a voltage conversion unit electrically connected to the motor/generator and the driving motor of the electric door, respectively, for supplying power to the driving motor of the electric door. Therefore, power supply to the electric door can be realized, and the water return pressure is reduced.
In some embodiments, the voltage detection device comprises a no-voltage protection relay.
An embodiment of the second aspect of the utility model provides a circulating water heating system, a serial communication port, including heating equipment, return water storage device and above-mentioned embodiment return water control system.
According to the utility model discloses circulating water heating system through adopting the return water control system that above-mentioned embodiment provided, can prevent that heating equipment from damaging, improves user's heating and experiences.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a return water control system according to an embodiment of the present invention;
FIG. 2 is an AC circuit schematic diagram of a return water control system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a DC circuit of a return water control system according to an embodiment of the present invention;
fig. 4 is a block diagram of a circulating water heating system according to an embodiment of the present invention.
Reference numerals:
a circulating water pump 1; a flywheel energy storage device 2; a first switch 3; a second switch 4; a voltage detection device 5; a controller 6; and an electric door 7.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
The following describes a return water control system according to an embodiment of the first aspect of the present invention with reference to the drawings, and this system can maintain the operation of the circulating water pump, reduce the circulating water pressure, and prevent the heating equipment from being damaged when the circulating water pump suddenly fails.
Fig. 1 shows the structural block diagram of the return water control system provided by an embodiment of the present invention, as shown in fig. 1, the return water control system 10 of the embodiment of the present invention includes a circulating water pump 1, a flywheel energy storage device 2, a first switch 3, a second switch 4, a voltage detection device 5 and a controller 6.
The circulating water pump 1 is arranged on the water return side of the heating equipment and comprises a power supply input end, and the power supply input end is connected with a power supply, such as a power grid. The first end of the flywheel energy storage device 2 is connected with a power supply, and the second end of the flywheel energy storage device is connected with the power supply input end of the circulating water pump 1. The first switch 3 is arranged between the power supply input end of the circulating water pump 1 and the power supply. The second switch 4 is arranged between the second end of the flywheel energy storage device 2 and the power supply input end of the circulating water pump 1. And the voltage detection device 5 is used for detecting the power supply voltage of the power supply. And the controller 6 is respectively connected with the voltage detection device 5, the first switch 3 and the second switch 4.
Specifically, the power supply provides electric energy for the water return control system 10, when the circulating water pump 1 operates normally, the controller 6 controls the first switch 3 to be closed and the second switch 4 to be opened, and controls the voltage detection device 5 to detect the power supply voltage of the power supply in real time, so that the electric energy of the power supply passes through the loop of the first switch 3 to supply power to the circulating water pump 1, the circulating water pump 1 operates, and meanwhile, the power supply directly transmits the electric energy to the flywheel energy storage device 2, and the flywheel energy storage device 2 stores the electric energy. When the voltage detection device 5 detects that the supply voltage is less than the voltage threshold, namely after the circulating water pump 1 loses power suddenly, the controller 6 controls the first switch 3 to be switched off and the second switch 4 to be switched on, the flywheel energy storage device 2 starts to discharge, the circulating water pump 1 is maintained to operate, and the circulating water pressure is reduced, so that the circulating water pressure is prevented from increasing suddenly, and the heating equipment is prevented from being damaged.
According to the utility model discloses return water control system 10, through controlling flywheel energy memory 2, can be in normal operation, carry out the electric energy storage, and when supply voltage is less than voltage threshold, provide the electric energy, maintain circulating water pump 1 operation, promptly in circulating water pump 1 normal operation, power supply carries out the electric energy storage to flywheel energy memory 2, when voltage detection device 5 detects supply voltage and is less than voltage threshold, just also after power supply has a power failure suddenly, need not manual operation, original power supply of controller 6 can direct disconnection, first switch 1 disconnection promptly, and discharge through flywheel energy memory 2, maintain circulating water pump 1 operation, with reduce circulating water pressure, when effectively avoiding having a power failure suddenly, increase suddenly because of circulating water pressure, and cause the problem that heating equipment damaged.
In an embodiment, as shown in FIG. 2, the water return control system 10 further includes a third switch KF1 and a fourth switch KF 2.
Wherein, the third switch KF1 is disposed between C1 and the power supply, i.e. between the first switch 3 and the power supply, for acting according to the first operation instruction. And the fourth switch KF2 is arranged between the first end of the flywheel energy storage device 2 and the power supply and is used for acting according to the second operation instruction.
And as shown in fig. 2, an electric door 7 is arranged on the outlet side of the circulating water pump 1, and a driving motor of the electric door 7 is connected with the third end of the flywheel energy storage device 2.
In the embodiment, the flywheel energy storage device 2 includes a motor/generator and a flywheel rotor, wherein the motor/generator is electrically connected to the power supply and the circulating water pump 1, respectively, and the motor/generator is connected to the flywheel rotor. And the flywheel energy storage device 2 further comprises a voltage conversion unit which is respectively electrically connected with the motor/generator and the driving motor of the electric door and is used for supplying power to the driving motor of the electric door.
In the embodiment, as shown in fig. 2, the voltage detection device 5 includes a no-voltage protection relay YJ, which can automatically cut off the power supply if the power supply is suddenly cut off due to some external reason under normal working conditions, and cannot automatically start when the power supply is restarted, so as to detect the voltage of the power supply in real time during working, and transmit a power failure signal to the controller 6 to control the power supply circuit after the power supply suddenly cuts off the power.
The operation of the return water control system 10 according to the embodiment of the present invention will be described in detail with reference to fig. 2.
Specifically, as shown in fig. 2, for the ac circuit schematic diagram of the water return control system 10, KF1 and KF2 may be manually controlled, and when the power supply is supplying power normally, the C1 loop is running to supply power for the circulating water pump, that is, KF1, KF2 and C1 are all closed, the circulating water pump 1 is running normally, and the flywheel energy storage device 2 sends out the flywheel system energy storage instruction to store electric energy. When the power supply is suddenly powered off, the node YJ of the no-voltage protection relay is closed, the loop C2 is started, the C1 is disconnected, the flywheel energy storage device 2 sends a flywheel system discharge instruction to provide power supply for the circulating water pump 1 and the driving motor of the electric door 7, meanwhile, the output node FL1 of the flywheel energy storage device 2 is closed, the electric door 7 closing instruction is sent, the circulating water pump 1 is maintained to operate for 10-15 s, and the circulating water pressure is reduced. In addition, as shown in fig. 3, a schematic diagram of a dc circuit of the water return control system 10 is shown, wherein components of each part correspond to symbols in an ac circuit in fig. 2, and the operation principle is the same, and will not be described here.
In summary, according to the utility model discloses a return water control system 10, through flywheel energy memory 2, when circulating water pump 1 normal operating, carry out the electric energy storage to flywheel energy memory 2, and simultaneously, the voltage of real-time supervision circulating water pump 1 power supply, after power supply suddenly has a power failure, need not manual operation, return water control system 10 will directly break off original power supply, flywheel energy memory 2 begins to discharge, maintain circulating water pump 1 operation, and supply power for the driving motor of electrically operated gate 7, and give an instruction, close circulating water pump 1's export electrically operated gate 7, reduce circulating water pressure in the fixed time, avoid pressure to increase, it is convenient both to save time, prevent again that heating equipment from damaging.
An embodiment of the second aspect of the present invention provides a circulating water heating system, as shown in fig. 4, the circulating water heating system 100 includes a heating device 30, a backwater storage device 20 and the backwater control system 10 provided by the above embodiment.
Specifically, the circulating water pump 1 in the backwater control system 10 can pump the heating backwater back to the backwater storage device 20, after the power supply has suddenly cut off, the flywheel energy storage device 2 in the backwater control system 10 can be passed through, within 20 seconds after the power failure of the circulating water pump 1, the circulating water pump 1 is kept running continuously, the outlet electric door 7 of the circulating water pump 1 is closed at the same time, the circulating water pressure is reduced, and therefore the problem that the heating equipment 30 is damaged due to the fact that the circulating water pressure of the heating equipment 30 is suddenly increased after the circulating water pump 1 loses power suddenly is solved.
According to the utility model discloses circulating water heating system 100, through adopting the return water control system 10 that above-mentioned embodiment provided, promptly through the input and the control to flywheel energy memory 2, can avoid circulating water pressure to increase suddenly, prevents that heating equipment from damaging, improves user heating and experiences.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A water return control system, comprising:
the circulating water pump is arranged on the water return side of the heating equipment and comprises a power supply input end, and the power supply input end is connected with a power supply;
the first end of the flywheel energy storage device is connected with the power supply, and the second end of the flywheel energy storage device is connected with the power supply input end of the circulating water pump;
the first switch is arranged between the power supply input end of the circulating water pump and the power supply;
the second switch is arranged between the second end of the flywheel energy storage device and the power supply input end of the circulating water pump;
the voltage detection device is used for detecting the power supply voltage of the power supply;
the controller is respectively connected with the voltage detection device, the first switch and the second switch;
when the supply voltage is less than a voltage threshold, the first switch is open and the second switch is closed.
2. The water return control system of claim 1, further comprising:
the third switch is arranged between the first switch and the power supply and used for acting according to a first operation instruction;
and the fourth switch is arranged between the first end of the flywheel energy storage device and the power supply and is used for acting according to a second operation instruction.
3. The water return control system according to claim 2, wherein an electric door is provided on an outlet side of the circulating water pump, and a driving motor of the electric door is connected to a third end of the flywheel energy storage device.
4. The water return control system of claim 3, wherein the flywheel energy storage device comprises:
the motor/generator is electrically connected with the power supply and the circulating water pump respectively, and the motor/generator is connected with the flywheel rotor.
5. The water return control system of claim 4 wherein the flywheel energy storage device further comprises a voltage conversion unit electrically connected to the motor/generator and the electric door drive motor, respectively, for powering the electric door drive motor.
6. The water return control system of any of claims 1-5 wherein the voltage detection device includes a no-voltage protection relay.
7. A circulating water heating system comprising a heating facility, a return water storage facility and a return water control system according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143497.3U CN211476085U (en) | 2019-12-03 | 2019-12-03 | Backwater control system and circulating water heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922143497.3U CN211476085U (en) | 2019-12-03 | 2019-12-03 | Backwater control system and circulating water heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211476085U true CN211476085U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922143497.3U Expired - Fee Related CN211476085U (en) | 2019-12-03 | 2019-12-03 | Backwater control system and circulating water heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211476085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339179A (en) * | 2021-06-30 | 2021-09-03 | 中山市乐喜电子科技有限公司 | Power supply system for internal power supply of electric control water terminal |
-
2019
- 2019-12-03 CN CN201922143497.3U patent/CN211476085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339179A (en) * | 2021-06-30 | 2021-09-03 | 中山市乐喜电子科技有限公司 | Power supply system for internal power supply of electric control water terminal |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20211203 |