Automatic waterway flushing system and pipeline running water flushing device

Abstract

The utility model provides an automatic waterway flushing system and a pipeline running water flushing device, which comprise a controller, a hot water inlet channel and a cold water inlet channel, the communicating channel is arranged between the hot water inlet channel and the cold water inlet channel; a first water inlet of the first control valve is communicated with the hot water inlet channel, and a first water outlet of the first control valve is communicated with the first water outlet channel; a second water inlet of the second control valve is communicated with the cold water inlet channel, and a second water outlet of the second control valve is communicated with the second water outlet channel; the third control valve is arranged on the communication channel so as to control connection and disconnection of the hot water inlet channel and the cold water inlet channel; the controller is in communication connection with the first control valve, the second control valve and the third control valve. When water enters and hot water is discharged, the cold water is introduced into the hot water inlet channel to be mixed and cooled, so that the temperature of water flow passing through the first control valve is reduced, and the service life of the control valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, in particular to an automatic waterway flushing system and a pipeline live water flushing device. Background Art

[0002] In various buildings, sewer pipes are not used for a long time, such as schools, hotels, stadiums, etc., which may be unused for a long time, and private houses may be out for a long time, such as on business trips, vacations, etc. In this case, the water in the pipeline is stagnant for a long time and the water does not flow. If the water pipes are not used for a long time, bacteria are easy to breed in the drinking water of the pipeline system. The pollution problem is particularly present in buildings that are not used for a long time. In this case, the so-called sanitary flushing is used to regularly flush the water pipe system to avoid water pollution caused by stagnation. Therefore, a device that can automatically flush the pipeline system using a control system is proposed. The patent document EP1964983B1 discloses a regular water discharge structure. When the pipeline flushing device is set to flush with hot water, the long-term high water temperature will cause the rubber parts to age, affecting the rubber seal of the control valve, thereby affecting the life of the control valve. Summary of the invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a waterway automatic flushing system and a pipeline live water flushing device.

[0004] The utility model adopts the following method to achieve:

[0005] A waterway automatic flushing system, comprising a controller and further comprising:

[0006] At least one hot water inlet channel connected to a first water outlet channel;

[0007] At least one cold water inlet channel connected to a second water outlet channel;

[0008] A communication channel, provided between the hot water inlet channel and the cold water inlet channel, for connecting the hot water inlet channel and the cold water inlet channel;

[0009] a first control valve having a first water inlet and a first water outlet, wherein the first water inlet is connected to the hot water inlet channel, and the first water outlet is connected to the first water outlet channel;

[0010] a second control valve having a second water inlet and a second water outlet, wherein the second water inlet is connected to the cold water inlet channel, and the second water outlet is connected to the second water outlet channel;

[0011] The third control valve is arranged on the communication channel and is used to control the opening and closing of the communication channel; the controller is communicatively connected with the first control valve, the second control valve and the third control valve.

[0012] Preferably, a one-way valve is provided in the communicating channel, so that the water flow in the communicating channel can only flow from the cold water inlet channel to the hot water inlet channel.

[0013] Preferably, the one-way valve is arranged on one side of the communication channel close to the hot water inlet channel, and the third control valve is arranged on the communication channel between the one-way valve and the cold water inlet channel.

[0014] Preferably, a filter screen is provided in the hot water inlet channel and the cold water inlet channel respectively.

[0015] Preferably, the filter on the hot water inlet channel is arranged upstream of the connection between the hot water inlet channel and the connecting channel; the filter on the cold water inlet channel is arranged upstream of the connection between the cold water inlet channel and the connecting channel.

[0016] Preferably, the hot water inlet channel and the cold water inlet channel are respectively provided with mechanical control valves for controlling the on-off of water flow in the hot water inlet channel and the cold water inlet channel.

[0017] Preferably, the mechanical control valve on the hot water inlet channel is arranged upstream of the connection between the hot water inlet channel and the connecting channel; the mechanical control valve on the cold water inlet channel is arranged upstream of the connection between the cold water inlet channel and the connecting channel.

[0018] A pipeline live water flushing device includes a live water tank and at least one drain outlet arranged on the live water tank, the drain outlet is respectively connected to the inner cavity of the live water tank and the drainage pipe, the live water tank is provided with the automatic water flushing system as described above, and the first water outlet channel and the second water outlet channel are connected to the drain outlet.

[0019] Preferably, a water seal structure is provided at the drain outlet or in the drain pipe.

[0020] The beneficial effects of the utility model are:

[0021] The utility model provides a waterway automatic flushing system. Compared with the prior art, the utility model has at least the following technical effects: 1. By providing a hot water inlet channel and a cold water inlet channel, and providing a connecting channel between the two, which is used to connect the hot water inlet channel and the cold water inlet channel, a third control valve is provided on the connecting channel to control the hot water inlet channel and the cold water inlet channel. In this way, when the hot water is discharged, the cold water of the cold water inlet channel can be used to mix the hot water of the hot water inlet channel in the hot water inlet channel to cool down, and then discharged by the first control valve, so that the temperature of the water flow through the first control valve is reduced, which helps to improve the life of the control valve. 2. By providing a one-way valve on the connecting channel, it can be achieved that after the third control valve is opened, the water flow can only flow from the cold water inlet channel to the hot water inlet channel, and at the same time, it is ensured that the hot water will not flow out from the connecting channel when the cold water is discharged. 3. The one-way valve is arranged on a side close to the hot water inlet channel, and the third control valve is arranged on the connecting channel between the one-way valve and the cold water inlet channel. Hot water cannot flow to the cold water inlet channel side through the one-way valve and cannot contact the third control valve, which helps to increase the service life of the third control valve.

[0022] A pipeline live water flushing device is provided. Compared with the prior art, the utility model has at least the following technical effects: by adopting the above-mentioned water channel automatic flushing system, the outlet water temperature of the hot water discharge can be lowered to reduce the heat transferred to the control valve, delaying the aging speed of the rubber of the control valve, thereby extending the service life of the control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model discloses a cross-sectional structural diagram of a waterway automatic flushing system and a pipeline live water flushing device.

[0024] Figure 2 The utility model is another cross-sectional structural schematic diagram of a waterway automatic flushing system and a pipeline live water flushing device according to the present invention.

[0025] Figure 3 The utility model discloses a three-dimensional structural schematic diagram of a waterway automatic flushing system and a pipeline live water flushing device.

[0026] Figure 4 The utility model is a schematic diagram of a waterway automatic flushing system and a pipeline live water flushing device in a cold water discharge state.

[0027] Figure 5 yes Figure 4 A local enlarged schematic diagram of point A in the middle.

[0028] Figure 6 The utility model is a schematic diagram of a waterway automatic flushing system and a pipeline live water flushing device in a hot water discharge state.

[0029] Figure 7 yes Figure 6 A local enlarged schematic diagram of the .

[0030] Explanation of the accompanying figures: 1. Hot water inlet channel; 2. First water outlet channel; 3. Cold water inlet channel; 4. Second water outlet channel; 5. Connecting channel; 6. First control valve; 7. Second control valve; 8. Third control valve; 9. One-way valve; 10. Filter; 11. Mechanical control valve; 12. Live water tank; 13. Drain outlet. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] See also Figures 1 to 7 , a waterway automatic flushing system, including a controller (not shown), and also including:

[0033] At least one hot water inlet channel 1 connected to a first water outlet channel 2;

[0034] At least one cold water inlet channel 3 connected with a second water outlet channel 4;

[0035] A communication channel 5 is provided between the hot water inlet channel 1 and the cold water inlet channel 3, and is used to connect the hot water inlet channel 1 and the cold water inlet channel 3;

[0036] A first control valve 6, having a first water inlet and a first water outlet, wherein the first water inlet is connected to the hot water inlet channel 1, and the first water outlet is connected to the first water outlet channel 2;

[0037] A second control valve 7, having a second water inlet and a second water outlet, wherein the second water inlet is connected to the cold water inlet channel 3, and the second water outlet is connected to the second water outlet channel 4;

[0038] The third control valve 8 is arranged on the communication channel 5, and is used to control the on-off of the communication channel 5, so as to control the on-off of the hot water inlet channel 1 and the cold water inlet channel 3; the controller is connected to the first control valve 6, the second control valve 7, and the third control valve 8. The hot water inlet channel 1 and the cold water inlet channel 3 are provided, and the communication channel 5 is arranged between the two, which is used to connect the hot water inlet channel 1 and the cold water inlet channel 3. The third control valve 8 is arranged on the communication channel 5, and is used to control the on-off of the hot water inlet channel 1 and the cold water inlet channel 3. In this way, when the hot water is discharged, the cold water of the cold water inlet channel 3 can be mixed with the hot water of the hot water inlet channel 1 in the hot water inlet channel 1 to cool it down, and then discharged by the first control valve 6, so that the temperature of the water flow through the first control valve 6 is reduced, which helps to improve the life of the control valve.

[0039] See also Figures 1 to 7 Preferably, a one-way valve 9 is provided in the communication channel 5, so that the water flow in the communication channel 5 can only flow from the cold water inlet channel 3 to the hot water inlet channel 1. By providing the one-way valve 9 on the communication channel 5, it can be achieved that after the third control valve 8 is opened, the water flow can only flow from the cold water inlet channel 3 to the hot water inlet channel 1, and at the same time ensure that hot water will not flow out of the communication channel 5 when the cold water is discharged.

[0040] See also Figures 1 to 7 Preferably, the one-way valve 9 is arranged on the communication channel 5 and close to the hot water inlet channel 1, and the third control valve 8 is arranged on the communication channel 5 between the one-way valve 9 and the cold water inlet channel 3. The one-way valve 9 is arranged on the side close to the hot water inlet channel 1, and the hot water cannot flow to the cold water inlet channel 3 through the one-way valve 9 and cannot contact the third control valve 8, which helps to increase the service life of the third control valve 8.

[0041] See also Figure 1 , Figures 4 to 7 Preferably, a filter 10 is provided in the hot water inlet channel 1 and the cold water inlet channel 3 respectively. The filter 10 on the hot water inlet channel 1 is arranged upstream of the connection between the hot water inlet channel 1 and the connecting channel 5; the filter 10 on the cold water inlet channel 3 is arranged upstream of the connection between the cold water inlet channel 3 and the connecting channel 5. It is used to filter impurities in the hot water inlet channel 1 and the cold water inlet channel 3.

[0042] See also Figures 1 to 7 Preferably, the hot water inlet channel 1 and the cold water inlet channel 3 are respectively provided with mechanical control valves 11 for controlling the on-off of the water flow in the hot water inlet channel 1 and the cold water inlet channel 3. The mechanical control valve 11 on the hot water inlet channel 1 is arranged upstream of the connection between the hot water inlet channel 1 and the connecting channel 5; the mechanical control valve 11 on the cold water inlet channel 3 is arranged upstream of the connection between the cold water inlet channel 3 and the connecting channel 5. The mechanical control valve 11 can cut off the water flow in the cold water inlet channel 3 and the hot water inlet channel 1 when the first control valve 6 and the second control valve 7 need to be repaired, which is convenient for maintenance. The mechanical control valve 11 is in a normally open state.

[0043] Preferably, a water supply source (not shown) is further included, the water supply source is connected to the cold water inlet channel 3 and the hot water inlet channel 1, and is used to supply water to the cold water inlet channel 3 and the hot water inlet channel 1. The water supply source includes a hot water source and a cold water source, the hot water source supplies water to the hot water inlet channel 1, and the cold water source supplies water to the cold water inlet channel 3.

[0044] See also Figures 1 to 7 A pipeline live water flushing device comprises a live water tank 12 and at least one drain port 13 provided on the live water tank 12, wherein the drain port 13 is respectively connected to the inner cavity of the live water tank and the drainage pipe, and the live water tank 12 is provided with the automatic waterway flushing system as described above, and the first water outlet channel 2 and the second water outlet channel 4 are connected to the inner cavity of the live water tank 12. By adopting the above-mentioned automatic waterway flushing system, a connecting channel 5 is provided in the hot water inlet channel 1 and the cold water inlet channel 3, and when hot water is discharged, the cold water in the cold water inlet channel 3 can enter the hot water inlet channel 1 through the connecting channel 5 to neutralize and cool the hot water. The outlet water temperature of the hot water discharge can be lowered to reduce the heat transferred to the first control valve 6, slow down the aging rate of the rubber therein, and extend the service life of the control valve, thereby helping to extend the service life of the present pipeline live water flushing device.

[0045] Preferably, a water seal structure is provided at the drain outlet 13 or in the drain pipe, so as to form a water seal, isolate odor and prevent animals such as cockroaches from running into the live water tank 12 .

[0046] The utility model has the following working principle:

[0047] When it is necessary to discharge hot water, the first control valve 6, the second control valve 7 and the third control valve 8 receive the first control signal sent by the controller, the first control valve 6 and the third control valve 8 are opened, and the second control valve 7 is closed, and the hot water discharge function is performed; the cold water inlet channel 3 and the hot water inlet channel 1 are simultaneously filled with water, the water flow of the cold water inlet channel 3 flows into the connecting channel 5, passes through the third control valve 8, pushes open the one-way valve 9 and enters the hot water inlet channel 1, and the cold water is mixed with the hot water in the hot water inlet channel 1 and then cooled and discharged in sequence through the outlet of the first control valve 6, the first water outlet channel 2, the live water tank 12 and the drain 13;

[0048] When it is necessary to discharge cold water: the first control valve 6, the second control valve 7 and the third control valve 8 receive the second control signal sent by the controller, the first control valve 6 and the third control valve 8 are closed, and the second control valve 7 is opened to perform the cold water discharge function; since the one-way valve 9 can only be opened toward the hot water inlet channel 1, the hot water cannot push open the one-way valve 9, and the water flow of the hot water inlet channel 1 cannot pass through the one-way valve 9 into the connecting channel 5, and cannot enter the cold water inlet channel 3 side; at this time, the water flow of the cold water inlet channel 3 is discharged from the outlet of the second control valve 7 and the second water outlet channel 4, the live water tank and the drain 13 in sequence;

[0049] When the water discharge is finished, the first control valve 6, the second control valve 7 and the third control valve 8 receive the third control signal sent by the controller, and the first control valve 6, the second control valve 7 and the third control valve 8 are all closed, the water discharge is finished, and no water flows out of the first water outlet channel 2 and the second water outlet channel 4. When hot water is discharged, the hot water and the cold water are controlled to be temperature neutralized, the water temperature of the water flowing through the first control valve 6 is reduced, the aging speed of the rubber therein is delayed, and the service life of the control valve is extended.

[0050] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0051] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0052] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0053] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.

Claims

1. A waterway automatic flushing system, comprising a controller, characterized in that: Also includes: At least one hot water inlet channel connected to a first water outlet channel; At least one cold water inlet channel connected to a second water outlet channel; A communication channel, provided between the hot water inlet channel and the cold water inlet channel, for connecting the hot water inlet channel and the cold water inlet channel; a first control valve having a first water inlet and a first water outlet, wherein the first water inlet is connected to the hot water inlet channel, and the first water outlet is connected to the first water outlet channel; a second control valve having a second water inlet and a second water outlet, wherein the second water inlet is connected to the cold water inlet channel, and the second water outlet is connected to the second water outlet channel; The third control valve is arranged on the communication channel and is used to control the opening and closing of the communication channel; the controller is communicatively connected with the first control valve, the second control valve and the third control valve.

2. The automatic waterway flushing system according to claim 1, characterized in that: A one-way valve is provided in the communication channel, so that the water flow in the communication channel can only flow from the cold water inlet channel to the hot water inlet channel.

3. The automatic waterway flushing system according to claim 2, characterized in that: The one-way valve is arranged on one side of the communication channel close to the hot water inlet channel, and the third control valve is arranged on the communication channel between the one-way valve and the cold water inlet channel.

4. The automatic waterway flushing system according to claim 1, characterized in that: Filters are respectively provided in the hot water inlet channel and the cold water inlet channel.

5. The automatic waterway flushing system according to claim 4, characterized in that: The filter on the hot water inlet channel is arranged upstream of the connection between the hot water inlet channel and the connecting channel; the filter on the cold water inlet channel is arranged upstream of the connection between the cold water inlet channel and the connecting channel.

6. The automatic waterway flushing system according to claim 1, characterized in that: The hot water inlet channel and the cold water inlet channel are respectively provided with mechanical control valves for controlling the on-off of water flow in the hot water inlet channel and the cold water inlet channel.

7. The automatic waterway flushing system according to claim 6, characterized in that: The mechanical control valve on the hot water inlet channel is arranged upstream of the connection between the hot water inlet channel and the connecting channel; the mechanical control valve on the cold water inlet channel is arranged upstream of the connection between the cold water inlet channel and the connecting channel.

8. A pipeline live water flushing device, comprising a live water tank and at least one drain port provided on the live water tank, wherein the drain port is respectively connected to the inner cavity of the live water tank and the drain pipe, wherein: The live water tank is provided with an automatic water channel flushing system as described in any one of claims 1 to 7, and the first water outlet channel and the second water outlet channel are connected to the inner cavity of the live water tank.

9. A pipeline live water flushing device according to claim 8, characterized in that: A water seal structure is provided at the drain outlet or in the drain pipe.

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