Pipeline direct drinking water metering system

Abstract

The utility model provides a pipeline direct drinking water metering system, which relates to the technical field of pipeline direct drinking water and comprises a water supply vertical pipe, a water return vertical pipe, a main pipe water meter, a plurality of water supply branch pipes, a plurality of water return branch pipes, a plurality of branch pipe water meters, a plurality of water nozzles and a metering system. The main pipe water meter is connected with a water supply branch pipe and a water return branch pipe, the branch pipe water meter is connected with the water supply branch pipe and the water return branch pipe, the water nozzle is connected with the water supply branch pipe and the water return branch pipe, and the main pipe water meter and the branch pipe water meter are connected with the metering system through wireless signals. The investment of a pipeline direct drinking water system is reduced; judging operation states of the pipe network and the water meters and early warning or pipeline leakage according to the sum of the main pipe water meters and the branch pipe water meters; the metering system can timely push a signal to inform maintenance personnel of timely overhauling, so that loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline direct drinking water, in particular to a pipeline direct drinking water metering system. Background Technique

[0002] The pipeline direct drinking water system takes municipal tap water or other centralized water supplies as raw water, and through a pretreatment system, a membrane treatment system, post-treatment, return water treatment, and a water supply system, distributes directly drinkable water to users through main pipes and branch pipes. In order to improve the quality of citizens' lives and the urban quality, at present, pipeline direct drinking water projects are promoted and constructed in many new projects, existing projects, commercial offices, and public places in our country.

[0003] The length of the branch pipe from the direct drinking water supply riser to the household water faucet is generally 3 - 5 meters. In large flats, villas, commercial and public places, the length of the water supply branch pipes is relatively long, generally more than 6 meters. The direct drinking water in the supply riser circulates through the return pipe, while the water in the branch pipes is stationary. Various reasons (such as weekends or legal holidays in office buildings, and long periods of absence of residents in residential buildings) may cause the direct drinking water to stay in the pipeline for too long, and the water quality will deteriorate. The current common practice is to open the water faucet to let the direct drinking water flow for a period of time before using the direct drinking water to drain the stale water in the branch pipe, resulting in a waste of water resources. Another solution is to use a water faucet circulation pipeline to make the water in the branch pipes circulate regularly, which will cause problems in water consumption metering. If one water meter is installed, the actual water intake of the direct drinking water is unknown. To know the actual water intake, it is necessary to measure the water volume of the water supply branch pipe and the return water branch pipe and calculate the difference between the two, which will increase the investment cost (two direct drinking water meters need to be installed for one household) and the metering accuracy problem. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a pipeline direct drinking water metering system, which solves the problems put forward in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions: A pipeline direct drinking water metering system: includes a water supply riser, a return water riser, a main pipe water meter, a number of water supply branch pipes, a number of return water branch pipes, a number of branch pipe water meters, a number of water faucets, and a metering system. The main pipe water meter connects the water supply riser and the return water riser. The branch pipe water meters connect the water supply branch pipes and the return water branch pipes. The water faucets are connected to the water supply branch pipes and the return water branch pipes. The main pipe water meter and the branch pipe water meters are connected to the metering system through wireless signals.

[0008] Preferably, the water supply riser, the return water riser, the water supply branch pipe, and the return water branch pipe are made of food-grade stainless steel.

[0009] Preferably, the water nozzle is a special water nozzle for direct drinking water and is made of food-grade stainless steel.

[0010] Preferably, the main pipe water meter and the branch pipe water meter are two-way metering water meters, and their type is a turbine water meter.

[0011] Preferably, the two-way metering water meter is a four-port water meter.

[0012] Preferably, the two-way metering water meter includes a water meter body, a water supply inlet, a water supply outlet, a return water inlet, and a return water outlet.

[0013] Preferably, the two-way metering water meter is an intelligent water meter with a remote transmission function.

[0014] Preferably, the two-way metering water meter regularly uploads the operation status and flow information to the metering system.

[0015] (III) Beneficial Effects

[0016] The present utility model provides a pipeline direct drinking water metering system. It has the following beneficial effects:

[0017] In this pipeline direct drinking water metering system, a water meter with a two-way metering function is used to replace the water supply water meter and the return water meter, reducing the investment in the pipeline direct drinking water system; the operation status of the pipe network and the water meter and early warning or pipeline leakage are judged through the sum of the main pipe water meter and the branch pipe water meter; the metering system can timely push signals to notify the maintenance personnel for timely maintenance to reduce losses; Description of the Drawings

[0018] Figure 1 is the schematic diagram of the present utility model;

[0019] Figure 2 is the schematic diagram of the water meter in an embodiment of a pipeline direct drinking water metering system of the present utility model.

[0020] In the figure: 1, water supply riser; 2, return water riser; 3, main pipe water meter; 4, first branch pipe water meter; 5, second branch pipe water meter; 6, first branch water nozzle; 7, second branch water nozzle; 9, first water supply branch pipe; 10, first return water branch pipe; 11, second water supply branch pipe; 12, second return water branch pipe; 8, metering system; 30, water meter body; 31, water supply inlet; 32, water supply outlet; 33, return water inlet; 34, return water outlet. Detailed Embodiment

[0021] An embodiment of the present utility model provides a pipeline direct drinking water metering system 8, as Figure 1-2As shown, it includes a water supply riser 1, a return water riser 2, a main pipe water meter 3, several water supply branch pipes, several return water branch pipes, several branch pipe water meters, several faucets and a metering system 8. The main pipe water meter 3 connects the water supply riser 1 and the return water riser 2. The branch pipe water meters connect the water supply branch pipes and the return water branch pipes. The faucets are connected to the water supply branch pipes and the return water branch pipes. The main pipe water meter 3 and the branch pipe water meters are connected to the metering system 8 through wireless signals.

[0022] In the embodiment shown, several return water branch pipes, branch pipe water meters, faucets, and the main pipe water meter 3 include two branches in parallel. The first branch includes a first water supply branch pipe 9, a first branch faucet 6, a first return water branch pipe 10, and a first branch pipe water meter 4. The first water supply branch pipe 9 is connected to the first branch pipe water meter 4. The end of the first water supply branch pipe 9 is connected to the first branch faucet 6. The first branch faucet 6 is connected to the first return water branch pipe 10. The first return water branch pipe 10 is connected to the first branch pipe water meter 4. The second branch includes a second water supply branch pipe 11, a second branch faucet 7, a second return water branch pipe 12, and a second branch pipe water meter 5. The second water supply branch pipe 11 is connected to the second branch pipe water meter 5. The end of the second water supply branch pipe 11 is connected to the second branch faucet 7. The second branch faucet 7 is connected to the second return water branch pipe 12. The second return water branch pipe 12 is connected to the second branch pipe water meter 5.

[0023] In Figure 1 the above technical solution, the water supply riser 1, the return water riser 2, the water supply branch pipes, and the return water branch pipes are made of food-grade stainless steel.

[0024] In the above technical solution, the faucets are special faucets for direct drinking water and are made of food-grade stainless steel.

[0025] In the above technical solution, the main pipe water meter 3 and the branch pipe water meters are two-way metering water meters, and their type is turbine water meters.

[0026] In

[0027] In Figure 2 the embodiment shown, the two-way metering water meter is a four-port water meter. The two-way metering water meter includes a water meter body 30, a water supply inlet 31, a water supply outlet 32, a return water inlet 33, and a return water outlet 34.

[0028] Furthermore, the two-way metering water meter is an intelligent water meter with remote transmission function. The two-way metering water meter regularly uploads the operation status and flow information to the metering system 8. The metering system 8 calculates the difference between the sum of the flow rates of the branch pipe water meters and the flow rate of the main pipe water meter 3. If the difference is within the allowable deviation range, it indicates that the system is operating normally. If the difference is greater than the allowable deviation, it indicates that there is a problem with the water meters in the system or there is a leak in the pipeline. The metering system 8 sends a signal to notify the maintenance personnel to carry out timely maintenance.

[0029] Working principle: The main pipe water meter 3 is connected to the water supply riser 1 and the return water riser 2. The branch pipe water meter is connected to the water supply branch pipe and the return water branch pipe. The water nozzle is connected to the water supply branch pipe and the return water branch pipe. The main pipe water meter 3 and the branch pipe water meter are connected to the metering system 8 through wireless signals. The direct drinking water equipment transports the direct drinking water to different floors through the water supply riser 1, and then transports the direct drinking water to the direct drinking water nozzle through the branch pipe. Users draw water through the direct drinking water nozzle. The sum of the water volume Q1 taken away and the water volume Q2 of the return water is equal to the water supply volume Q. The metering value of the branch pipe water meter is Q1 = Q - Q2. The metering system 8 calculates the difference between the sum of the flow rates of all branch pipe water meters in the system and the flow rate of the main pipe water meter 3. If the difference is within the allowable deviation range, it indicates that the system is operating normally. If the difference is greater than the allowable deviation, it indicates that there is a problem with the water meter in the system or there is a leak in the pipeline. The metering system 8 sends a signal to notify the maintenance personnel to perform timely maintenance:

[0030] The reading Q3 of the main pipe water meter 33 = the reading Q4 of the first branch pipe water meter 44 + the reading Q5 of the second branch pipe water meter 55 + the allowable deviation ε. The reading Q4 of the first branch pipe water meter 44 = the volume flow rate transported by the first water supply branch pipe 99 - the volume flow rate of the return flow of the first return water branch pipe 1010, which is equal to the volume flow rate of water drawn by the water nozzle 6. The same applies to the second branch pipe.

[0031] In summary,

[0032] For the direct drinking water metering system 8 of this pipeline, by using water meters with two-way metering functions to replace the water supply water meter and the return water meter, the investment in the direct drinking water pipeline system is reduced; the operation status of the pipe network and the water meter and early warning or pipeline leakage are judged through the sum of the main pipe water meter 3 and the branch pipe water meter; the metering system 8 can send a signal in time to notify the maintenance personnel to perform timely maintenance and reduce losses.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A piped drinking water metering system, characterized in that: The invention comprises a water supply riser (1), a water return riser (2), a main pipe water meter (3), a plurality of water supply branches, a plurality of water return branches, a plurality of branch pipe water meters, a plurality of faucets and a metering system (8), wherein the main pipe water meter is connected to the water supply riser and the water return riser, the branch pipe water meter is connected to the water supply branch pipe and the water return branch pipe, the faucet is connected to the water supply branch pipe and the water return branch pipe, and the main pipe water meter and the branch pipe water meter are connected to the metering system via wireless signals.

2. The piped drinking water metering system according to claim 1 is characterized in that: The water supply riser (1), the water return riser (2), the water supply branch pipe, and the water return branch pipe are made of food-grade stainless steel.

3. The piped drinking water metering system according to claim 1 is characterized in that: The water spout is a special water spout for direct drinking water, and is made of food-grade stainless steel.

4. The piped drinking water metering system according to claim 1 is characterized in that: The main pipe water meter and the branch pipe water meter are two-way metering water meters, and their type is turbine water meter.

5. The piped drinking water metering system according to claim 4 is characterized in that: The bidirectional metering water meter is a four-port water meter.

6. The piped drinking water metering system according to claim 4 is characterized in that: The bidirectional water meter comprises a water meter body (30), a water supply inlet (31), a water supply outlet (32), a return water inlet (33) and a return water outlet (34).

7. The piped drinking water metering system according to claim 4 is characterized in that: The bidirectional water meter is an intelligent water meter with remote transmission function.

8. The piped drinking water metering system according to claim 4 is characterized in that: The bidirectional water meter regularly uploads operating status and flow information to the metering system (8).

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