CN112013545A

CN112013545A - Backwater throttling device

Info

Publication number: CN112013545A
Application number: CN201910468758.0A
Authority: CN
Inventors: 熊安宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01

Abstract

The invention provides a backwater throttling device, and relates to the technical field of water heaters. The water pump is arranged at the joint of the hot water pipe and the hot water tank and is controlled by the control system and used for pumping water in the hot water pipe back to the hot water tank; the two ends of the branch pipe are respectively connected to hot water pipes at the two ends of the water pump, the electromagnetic valve is arranged on the branch pipe and controlled by the control system and used for changing the conduction state of the branch pipe, and an inner container is arranged in the hot water pipe. The invention can pump the residual water in the hot water pipe back into the hot water tank through the matching of the water pump and the electromagnetic valve with the control system, the arrangement of the inner container enables the residual water to be pumped back more smoothly, and a user can directly obtain hot water when using the hot water tank next time without completely discharging the originally cooled residual water, thereby greatly saving water resources, reducing water cost and simultaneously improving use comfort.

Description

Backwater throttling device

Technical Field

The invention relates to the technical field of water heaters, in particular to a backwater throttling device.

Background

The demand for hot water is necessary regardless of the household. In the use of the current household water heater, the hot water always needs to be discharged after waiting for two minutes, so that the water is wasted, and the time of a user is delayed.

In view of the problem, on one hand, most of the self-built houses in the low-rise buildings and the rural towns of the two-three-line cities, particularly the southern cities, are provided with solar water heaters, and the solar water heaters are generally arranged on roofs and are far away from water consumption points using hot water. The waste of water is more, the time for waiting for hot water is longer, and the requirement for pre-placing cold water in a barrel is different.

On the other hand, the houses in the urban high-rise residential area are provided with electric water heaters or gas water heaters, although the distance between the hot water tank of the solar water heater and the water consumption point is shorter than that between the hot water tank of the solar water heater and the water consumption point. However, for large houses, the amount of pre-cooling water is about one basin. However, the water in the barrel and the basin is wasted only once, hot water is used for a plurality of times a day, and the wasted water volume is not visible.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a water return throttling device, which is used to solve the problem in the prior art that hot water can be discharged after cold water in a hot water pipe is discharged.

To achieve the above and other related objects, the present invention provides a backwater throttling device for connecting with a hot water tank, the backwater throttling device comprising: the water heater comprises a hot water pipe, a water pump, a branch pipe, an electromagnetic valve and a control system, wherein one end of the hot water pipe is communicated with a hot water tank, the other end of the hot water pipe is provided with a faucet, the water pump is arranged at the joint of the hot water pipe and the hot water tank and is controlled by the control system, and the water pump is used for pumping water in the hot water pipe back to the hot water tank; the two ends of the branch pipe are respectively connected to the hot water pipes at the two ends of the water pump, the electromagnetic valve is arranged on the branch pipe and controlled by the control system and used for changing the conduction state of the branch pipe.

In an embodiment of the present invention, the hot water pipe is further provided with a temperature sensor, and the temperature sensor is used for sensing the temperature of water in the hot water pipe and transmitting a signal to the control system.

In an embodiment of the present invention, the water pump is further provided with a water return switch, and the water return switch is used for changing a working state of the water pump.

In an embodiment of the present invention, the water faucet further includes a hot water switch, the hot water switch is disposed on the water faucet, and the hot water switch is connected to the control system and is used for changing a working state of the electromagnetic valve.

In an embodiment of the present invention, an inner container is disposed in the hot water pipe, and the inner container is made of a soft material.

As described above, the backwater throttling device of the invention has the following beneficial effects: the control system can directly control the working states of the water pump and the electromagnetic valve, when the control system controls the water pump to be closed and the electromagnetic valve is opened, the water outlet pipe of the hot water tank is directly communicated with the hot water pipe, and water in the hot water tank flows into the hot water pipe through the branch pipe to supply external water; when the control system controls the water pump to work, the electromagnetic valve is closed under the control of the control system, so that the branch pipe cannot be conducted, the water pump works to generate pressure difference in the hot water pipe, and residual water in the hot water pipe can only be pumped back into the hot water tank through the water pump again, so that the interior of the hot water pipe is pumped out; when the residual water in the hot water pipe is pumped out, the water pump is closed under the control of the control system, and the branch pipes are closed simultaneously, so that the hot water tank and the hot water pipe are not communicated completely, and the water is blocked in the hot water tank. When the user needs to use hot water again, the user can directly obtain hot water with enough temperature from the hot water tank only by opening the electromagnetic valve again through the control system, and the user does not need to obtain hot water only after the residual water in the hot water pipe is exhausted like the prior art, so that on one hand, the water resource is greatly saved, on the other hand, the time for waiting for hot water is also saved, and the comfort of using hot water is also improved while the water cost is reduced.

Drawings

Fig. 1 is a schematic connection diagram of a return water throttling device and a hot water tank disclosed in the embodiment of the invention.

Fig. 2 is a schematic structural view (opened state) of an inner container of the return water throttling device disclosed in the embodiment of the invention.

Fig. 3 is a schematic structural view (a contracted state) of an inner container of the return water throttling device disclosed in the embodiment of the invention.

Fig. 4 is a schematic structural view of an inner container and a hot water pipe of the water return throttling device disclosed in the embodiment of the invention (the inner container is in a contracted state).

Description of the element reference numerals

1-hot water pipe; 2-a water pump; 3-a hot water tank; 4-water outlet pipe; 5-a temperature sensor; 6-inner container; 7-a water return switch; 8-a water tap; 9-branch pipe; 10-an electromagnetic valve; 11-hot water switch.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Before the hot water in a common water heater is used, the hot water can be obtained only after all cooled residual water in the hot water pipe is discharged, so that a large amount of water resource waste is caused. In order to clearly reflect the waste of water resources, 126 artificial samples were extracted from college students in colleges and universities, and the amount of cold water wasted before bathing for one week per subject was investigated, and the results of the investigation are analyzed as shown in the following table.

As can be seen from the table, the water saving amount of a dormitory is about 80 square waters in one week, and the water is saved by 62 liters in one week. According to the review, the domestic water price of 86 urban residents in the country is 2.6 yuan per ton on average according to the statistics of the national statistical bureau. Kunming is one of ten water-deficient cities in China, and the water cost of residents is more than 3.45 yuan per square.

For the university students in Kunming, the amount of water wasted one week was 6000X 3.5X 62-1302000 liters. Of these, about 6000 people per grade, calculated on a 3.5 grade basis since most four students in the school period are rarely in school. And the water cost of each ton of water is converted into 2.9 yuan, and the water cost of the school student apartment wasted every week is 3640 yuan.

The water consumption of the school student apartment is about 38000 square per year, and the water consumption per year is 38000 x 2.9 ═ 11.02 ten thousand yuan.

From the above, it is known that water resources and economic losses caused by the waste of residual water in the hot water pipe of the water heater are very popular.

Referring to fig. 1, the present invention provides a backwater throttling device, which is used for connecting with a hot water tank 3, and comprises a hot water pipe 1, a water pump 2, a branch pipe 9, an electromagnetic valve 10 and a control system.

The hot water tank 3 is any original hot water tank 3 of a user and is provided with a water inlet and a water outlet. The water inlet is used for communicating with the domestic water so as to supplement the water into the hot water tank 3. The water outlet is provided with a water outlet pipe 4. One end of the hot water pipe 1 is communicated with the water outlet pipe 4, the other end of the hot water pipe is provided with a water tap 8, and hot water in the hot water tank 3 flows out through the hot water pipe 1 and is used by a user when the water tap 8 is opened.

The return water throttling device provided by the invention can be directly connected with the hot water tank 3 for use, does not need to specify the hot water tank 3, and is convenient to use.

The water pump 2 is arranged at the joint of the water outlet pipe 4 of the hot water tank 3 and the hot water pipe 1, and the water pump 2 is controlled by a control system and is used for pumping the water in the hot water pipe 1 back to the hot water tank 3.

Two ends of the branch pipe 9 are respectively connected with the hot water pipes 1 at two ends of the water pump 2. A solenoid valve 10 is arranged on the branch pipe 9 and the solenoid valve 10 is controlled by a control system for changing the conducting state of the branch pipe 9.

When the control system controls the water pump 2 to be closed and the electromagnetic valve 10 to be opened, the water outlet pipe 4 of the hot water tank 3 is directly communicated with the hot water pipe 1, and water in the hot water tank 3 flows into the hot water pipe 1 through the branch pipe 9 for external water supply.

When the water pump 2 works under the control of the control system, the electromagnetic valve 10 is closed under the control of the control system, so that the branch pipe 9 cannot be conducted, the water pump 2 works to generate pressure difference in the hot water pipe 1, and residual water in the hot water pipe 1 can only be pumped back into the hot water tank 3 through the water pump 2, so that the interior of the hot water pipe 1 is pumped out.

When the residual water in the hot water pipe 1 is pumped out, the water pump 2 is closed under the control of the control system, and the branch pipe 9 is closed at the same time, so that the hot water tank 3 and the hot water pipe 1 are not communicated with each other completely, and the water is blocked in the hot water tank 3.

When the user needs to use hot water again, the user can directly obtain hot water with enough temperature from the hot water tank 3 only by opening the electromagnetic valve 10 again through the control system, and the user does not need to obtain hot water only after the residual water in the hot water pipe 1 is exhausted like the prior art, so that on one hand, the water resource is greatly saved, on the other hand, the time for waiting for hot water is also saved, and the comfort of using hot water is also improved while the water cost is reduced.

The hot water pipe 1 is also provided with a temperature sensor 5. The temperature sensor 5 is used for sensing the temperature of water in the hot water pipe 1 and transmitting a signal to the control system.

When the user runs out of the hot water and turns off the faucet 8, the temperature of the remaining water in the hot water pipe 1 gradually decreases. The temperature sensor 5 detects the temperature of the water in the hot water pipe 1 in real time and transmits a signal to the control system. In this embodiment, the control system is a single chip microcomputer. When the signal received by the control system shows that the water temperature is reduced, the user can be judged to finish using hot water, the control system controls the water pump 2 to work, and water in the hot water pipe 1 is pumped back into the hot water tank 3, so that residual water is not left in the inner space of the hot water pipe 1, and the purpose of directly obtaining hot water when the hot water pipe is used next time is achieved.

Wherein, the duration of the single continuous operation who draws water of water pump 2, the accessible control system sets up for remaining water in the hot-water line 1 can be pumped back almost totally in the hot-water tank 3 just.

Referring to fig. 1, in the present embodiment, a temperature sensor 5 is provided on a hot water pipe 1 near an end of a faucet 8. In other embodiments, the specific installation position of the temperature sensor 5 on the hot water pipe 1 is not limited.

Referring to fig. 1, in the present embodiment, a hot water switch 11 is further disposed on the faucet 8, and the hot water switch 11 is connected to a control system for changing the operating state of the electromagnetic valve 10. When a user needs to use hot water, only the hot water switch 11 is turned on, a water supply signal can be provided to the control system through the hot water switch, the control switch controls the electromagnetic valve 10 to be turned on, the hot water in the hot water tank flows into the hot water pipe 1 through the branch pipe 9, and when the user turns on the water faucet at the same time, the hot water can flow out for the user to use.

Referring to fig. 2-4, an inner container 6 is further disposed in the hot water pipe 1, and the inner container 6 is made of a soft material and is resistant to high temperature. When hot water normally flows from the hot water tank 3 through the hot water pipe 1 and flows out from the faucet 8, the inner container 6 is closely attached to the inner wall of the hot water pipe 1, and the hot water flows through the inner container 6. When the water pump 2 starts to pump the residual water in the hot water pipe 1 back to the hot water tank 3, the pressure inside the inner container 6 is gradually reduced, and the inner container 6 is continuously contracted until the residual water is completely pumped back to the hot water tank 3.

Through setting up inner bag 6, water pump 2 can be with the help of the pressure differential that the space formed between the inside of inner bag 6 and hot-water line 1 when the surplus water of pumpback for the pumpback process of surplus water is more smooth.

Referring to fig. 1, a water return switch 7 is further disposed on the water pump 2, and the working state of the water pump 2 can be directly changed through the water return switch 7. When the temperature sensor 5 breaks down or the user needs to evacuate the hot water pipe 1, the water pump 2 can be started or closed by manually pressing a key through the water return switch 7, and the residual water in the hot water pipe 1 is treated. In another embodiment, the water return switch is not arranged, and the water pump can be controlled to work only through the cooperation of the temperature sensor.

In conclusion, the invention can utilize the water pump 2 to cooperate with the control system to pump the residual water in the hot water pipe 1 back into the hot water tank 3, so that the user can directly obtain hot water in the next use without completely discharging the originally cooled residual water, thereby greatly saving water resources, reducing water cost and simultaneously improving the use comfort. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a return water throttling arrangement for be connected with the hot-water tank, its characterized in that, return water throttling arrangement includes: the water heater comprises a hot water pipe, a water pump, a branch pipe, an electromagnetic valve and a control system, wherein one end of the hot water pipe is communicated with a hot water tank, the other end of the hot water pipe is provided with a faucet, the water pump is arranged at the joint of the hot water pipe and the hot water tank and is controlled by the control system, and the water pump is used for pumping water in the hot water pipe back to the hot water tank; the two ends of the branch pipe are respectively connected to the hot water pipes at the two ends of the water pump, the electromagnetic valve is arranged on the branch pipe and controlled by the control system and used for changing the conduction state of the branch pipe.

2. The water return throttling device according to claim 1, characterized in that: the hot water pipe is also provided with a temperature sensor, and the temperature sensor is used for sensing the water temperature in the hot water pipe and transmitting a signal to the control system.

3. The water return throttling device according to claim 1, characterized in that: the water pump is also provided with a water return switch, and the water return switch is used for changing the working state of the water pump.

4. The water return throttling device according to claim 1, characterized in that: still include the hot water switch, the hot water switch sets up on the water tap, and the hot water switch is connected with control system for change the operating condition of solenoid valve.

5. The return water throttling device according to any one of claims 1 to 4, characterized in that: an inner container is arranged in the hot water pipe and is made of soft materials.