CN201277716Y - instant heat cycler - Google Patents

Abstract

The utility model relates to an instant heating circulating device, including water intake pipe (1) and outlet pipe way (2), wherein still be equipped with return water pipeline (3) between delivery port (24) of outlet pipe way (2) and water heater water inlet, be equipped with water pump (4) on it. By adding the water return pipeline (3) with the water pump (4), the water in the water outlet pipeline (2) can be returned to the water heater (5) for cyclic heating, so that hot water can flow out when the water outlet valve (12) is opened. Therefore, not only can time be saved, but also water resources can be saved.

Description

instant heat cycler

technical field

The utility model relates to an instant heat cycle device.

Background technique

The existing water heating device includes an inlet pipeline for supplying cold water and an outlet pipeline for outputting hot water. The cold water enters the inlet pipeline from the water inlet, and then flows out from the outlet of the outlet pipeline after being heated by a water heating device such as a water heater. .

However, in daily use, since there is water in the outlet pipe, the water retained in this section will not be heated when the water heater is heated, so when the hot water outlet valve of the water heater is opened, the outlet pipe must be This section of cold water in the middle is let off, just can flow out through the hot water of heating. Not only is this a waste of time, but it also wastes precious water resources. This is especially true when using gas water heaters or solar water heaters. Because the location of the water outlet is further away from the location where the water heater is installed, more water needs to be put in and a longer wait is required for hot water to be used.

Therefore be badly in need of a kind of heating device that just can flow out hot water when opening water heater valve, just open instant water heater, thereby just can flow out hot water when opening water heater outlet valve.

Utility model content

The purpose of the utility model is to provide an instant heat circulation device, so that when the water outlet valve of the water heater is opened, hot water can flow out.

In order to achieve the above purpose, the utility model provides an instant heat circulation device, which includes a water inlet pipeline and a water outlet pipeline, and a return water pipeline is connected between the water outlet of the water outlet pipeline and the water inlet of the water heater, and a water pump is arranged on it .

In the utility model, a return water pipeline with a water pump is added between the hot water outlet and the cold water inlet. Since the water pump can return the water pressure in the outlet pipeline to the water heater and be heated by the water heater, it can make the water in the outlet pipe The water is always hot. Therefore, when using the instant heat circulation device of the present utility model, hot water flows out while opening the water outlet valve of the water heater, thereby not only saving the waiting time for letting off the cold water retained in the water outlet pipe, but also saving water resources.

In the instant heat circulation device of the present utility model, a bypass pipe is also connected between the water outlet of the water pump and the water outlet pipeline.

In addition, the bypass pipe is provided to prevent the water pump from directly pressing all the water in the return pipe back to the water heater, so as to avoid increasing the pressure on the water heater, thereby protecting the water heater. In detail, some water heaters, such as gas water heaters, control the heating power according to the amount of water flowing through the water heater. The small power is used for slow heating, thereby avoiding short-term high-power heating, thereby prolonging the life of the heater in the water heater.

The instant heat circulation device of the present utility model can also be provided with a water outlet temperature sensor on the side of the water outlet of the water outlet pipeline.

The water outlet temperature sensor used to detect the water temperature in the water pipe is provided so that the water pump only operates when the outlet water temperature is lower than the set temperature, and the water pump does not work when the outlet water temperature is higher than the set temperature. In this way, the water pump does not always need to be in the working state, so that the purpose of instant heating can also be achieved under the condition of saving energy.

The instant heat circulation device of the utility model can also be connected with a water inlet temperature sensor on the side of the water outlet of the water inlet pipeline.

The water inlet temperature sensor is used to detect the temperature of the water entering the water heater, so that the water heater can be heated according to the actual water inlet temperature to avoid wasting heating energy.

The instant heat circulation device of the present utility model can also be connected with a water flow sensor at the water inlet side of the water inlet pipeline.

The water flow sensor is used to detect the flow of water entering the water heater, so that the water heater can be heated according to the actual water inflow, so as to avoid wasting heating energy.

The instant heat circulation device of the present utility model can also be connected with a check valve and a flow limiting valve on the return water pipeline on the water outlet side of the water pump.

In the above instant heat cycle device, the interface between the bypass pipe and the return water pipeline is arranged between the water outlet of the water pump and the water inlet of the flow limiting valve.

The interface between the bypass pipe and the return pipe is set between the water outlet of the water pump and the water inlet of the restrictor valve. At this time, the restrictor valve will limit the flow of water output from the pump and diverted by the bypass pipe within a certain range. Therefore, a large amount of water output from the water pump on the return water pipeline can be prevented from flowing into the water inlet pipeline, so that the water flow in the return water pipeline can be accurately limited.

In the above instant heat cycle device, preferably, the water flow distribution ratio between the bypass pipe and the restrictor valve is set to 1:1.

Setting the water flow distribution ratio between the bypass pipe and the restrictor valve at 1:1 can make the water flow in the return water pipe diverted by the bypass pipe more stable, which is beneficial to the operation of the entire instant heat cycle device.

Description of drawings

Specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a specific embodiment of the thermal cycle device of the present invention.

Detailed ways

As shown in FIG. 1 , in this embodiment, the thermal cycle device includes a water inlet pipeline 1 , a water outlet pipeline 2 and a return water pipeline 3 , and a water pump 4 is provided on the water return pipeline 3 . The water inlet 25 of the return water pipeline 3 is connected with the water outlet 24 of the water outlet pipeline 2 , and the water outlet 26 of the return water pipeline 3 is connected with the water inlet pipeline 1 . The water outlet pipeline 2 is the pipeline between the water outlet valves 12 such as faucets or shower nozzles that communicate with the water outlet 24 of the water outlet pipeline 2 from the water inlet of the water heater 5 (the water inlet 23 of the water outlet pipeline 2 ).

The water heater unit can be switched between non-hydronic heating and hydronic heating. When circulation heating is not needed, the water pump 4 does not work. If the water outlet valve 12 is opened at this time, cold water can flow into the water inlet 1 from the water inlet 21 of the water inlet pipe A, and flow into the water heater from the water outlet 22 of the water inlet pipe 1. 5 for heating. The hot water heated by the water heater 5 flows into the water outlet pipeline 2 from the water inlet 23 of the water outlet pipeline 2, and finally flows out from the water outlet valve 12 for showering and the like. When circulating heating is required, the water pump 4 works. At this time, the water outlet pipeline 2 communicates with the return water pipeline 3. The water pump 4 in the water return pipeline 3 can press the water in the water outlet pipeline 2 back into the water inlet pipeline 1, and enter the Circulation heating is carried out in the water heater 5 . Therefore, the water in the water outlet pipeline 2 is always hot, that is, the purpose of hot water when it comes out is realized.

As shown in FIG. 1 , in this embodiment, a flow sensor 11 is connected to the water inlet 21 side of the water inlet pipeline 1 , and an inlet water temperature sensor 10 is connected to the water outlet 22 side of the water inlet pipeline 1 . The flow sensor 11 is used to detect the flow of cold water entering the water heater 5 , and the inlet water temperature sensor 10 is used to detect the temperature of the water entering the water heater 5 . Due to the arrangement of these two detection devices, the water heater 5 can be heated according to the actual water inlet temperature and water inlet volume, thereby obtaining a suitable water temperature and saving the energy used for heating.

A water outlet temperature sensor 8 is also provided on the side of the water outlet 24 of the water outlet pipeline 2, which is used to detect the outlet water temperature in the circulation device. At the same time, a time controller 9 is also provided, and the time controller 9 is connected with a control device (not shown) for controlling the water pump 4 . The operation of the water pump 4 can be controlled by the outlet water temperature sensor 8 and the time controller 9 . For example, when the outlet water temperature detected by the outlet water temperature sensor 8 is lower than the preset temperature such as 30 degrees, the water pump 4 is turned on, and the thermal cycle device enters the circulating heating working state, and the water pump 4 returns the water in the outlet pipe 2 to the inlet pipe. 1, and enter the water heater 5 to continue heating; if the outlet water temperature detected by the outlet water temperature sensor 8 is higher than the preset temperature such as 39 degrees, the water pump 4 is closed, and at this time the thermal cycle device stops working, and the time controller 9 sets For example, within 1 hour, the water pump 4 can control the opening and closing of the water pump 4 according to the detected water temperature. Because the water heater 5 has the characteristics of a specific time in use, that is, it is generally used at night, so the cycle heating function can be automatically turned off during the day by setting the time controller 9, and the cycle heating is only performed when needed. This not only achieves the purpose of instant heating, but also saves the energy used to drive the cycle device.

As shown in FIG. 1 , a bypass pipe 7 connected to the water outlet pipeline 2 , a restrictor valve 13 and a check valve 14 are sequentially arranged on the side of the water outlet of the water pump 4 . The purpose of setting the bypass pipe 7 is to prevent the water pump 4 from directly pressing all the water in the water return line 3 back to the water heater 5, so as to avoid increasing the pressure on the water heater 5, thereby protecting the water heater 5. The restrictor valve 13 is used in conjunction with the bypass pipe 7 to stabilize the water flow in the return water pipeline 3 .

In this embodiment, the interface between the bypass pipe 7 and the return water pipeline 3 is set between the water outlet of the water pump 4 and the water inlet of the restrictor valve 13 . At this time, the restrictor valve 13 limits the water flow output from the water pump 4 and diverted by the bypass pipe 7 within a certain range, so that a large amount of water output from the water pump 4 on the return water line 3 can be prevented from flowing into the water inlet line 1 , so that the water flow in the return water pipeline 3 can be accurately restricted.

Preferably, the flow distribution ratio between the bypass pipe 7 and the restrictor valve 13 is set to 1:1.

Also can set up a restrictor valve on bypass pipe 7 additionally. In this way, it is easier to precisely control the flow distribution ratio between the bypass pipe 7 and the restrictor valve 13 .

Claims (8)

1. A kind of heat cycle device, comprises water inlet pipeline (1) and water outlet pipeline (2), is characterized in that, also is connected with the water outlet (24) between the water outlet pipeline (2) and the water heater water inlet The water return pipeline (3) is provided with a water pump (4). 2. The instant heat cycle device according to claim 1, characterized in that a bypass pipe (7) is connected between the water outlet of the water pump (4) and the water outlet pipeline (2). 3. The instant thermal cycle device according to claim 1 or 2, characterized in that a water outlet temperature sensor (8) is connected to the water outlet (24) side of the water outlet pipeline (2). 4. The instant thermal cycle device according to claim 1 or 2, characterized in that an inlet water temperature sensor (10) is connected to the water outlet side of the water inlet pipeline (1). 5. The instant thermal cycle device according to claim 1 or 2, characterized in that a flow sensor (11) is also connected to the water inlet side of the water inlet pipeline (1). 6. The instant thermal cycle device according to claim 1 or 2, characterized in that a check valve (14) and a flow limiting valve are connected to the return water line (3) on the water outlet side of the water pump (4) (13). 7. The instant thermal cycle device according to claim 6, characterized in that, the interface between the bypass pipe (7) and the return water pipeline (3) is set between the water outlet of the water pump (4) and the flow limiting valve (13 ) between the water inlets. 8. The instant thermal cycle device according to claim 7, characterized in that the flow distribution ratio of the bypass pipe (7) and the restrictor valve (13) is 1:1.

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