Circulating water system or water supply system with constant-pressure water replenishing and dosing functions and application

Abstract

The invention relates to a circulating water system or a water supply system with constant-pressure water replenishing and chemical adding functions and application of the circulating water system or the water supply system. Constant-pressure water replenishing equipment of the system comprises a VG tank with a weighing sensor, and a pressure replenishing water outlet of the VG tank is connected to a pressure replenishing connector of the system through a pipeline provided with a constant-pressure pump; a pressure relief interface of the system is connected to a pressure relief water inlet of the VG tank through a pipeline provided with a pressure relief valve; a pressure probe is also arranged on a pipeline between the pressure relief interface and the pressure relief valve; a dosing device of the system comprises a dosing barrel, and the dosing barrel is connected to a pipeline between a constant pressure pump and a pressure supplementing connector of the system through a pipeline provided with a dosing pump or directly connected to the pressure supplementing connector. And the instrument comprises a conductivity probe. A long-term quantitative drainage tube is omitted, and medicine can be added according to needs, and water can be drained according to needs; the waste of water resources is reduced, the dosage is reduced, the influence on the environment is reduced, and the operation cost is reduced; repeated parts and pipelines are reduced; the device is highly integrated, occupies a small area, and reduces the on-site installation space.

Description

Technical Field

[0001] The invention relates to a circulation system or a water supply system, in particular to a circulation water system or a water supply system with constant pressure water replenishment and medicine adding functions and application thereof. Background Art

[0002] Constant pressure water replenishment equipment and dosing equipment are two indispensable equipment in the circulation system and water supply system. With the acceleration of urbanization, the improvement of environmental protection awareness, and the demand of enterprises for improving system operation efficiency, the demand for these two types of equipment in the market is becoming more and more vigorous, reflecting their wide adaptability and broad market demand.

[0003] In modern circulating water systems, constant pressure water replenishment equipment is widely used in residential, commercial and industrial fields to ensure the stability of water pressure and guarantee the stable and efficient operation of users' water systems. Its core function is to automatically adjust the operation of the water pump, maintain the pressure in the system, and avoid downtime and inefficiency caused by water pressure fluctuations. At the same time, the constant pressure water replenishment equipment is exquisitely designed and can adapt to water systems of different sizes and natures, making it occupy a place in the market.

[0004] like Figure 1 As shown in the figure, it is a structural diagram of the constant pressure water replenishment equipment in the existing circulating water system. Its operating principle is: when the constant pressure water replenishment equipment is connected to the circulating water system, the circulating water system will detect the pressure of the circulating water in the system according to the pressure probe. For example: when the pressure probe detects that the circulating water system is underpressure, the pressure replenishment mode will be started. At this time, the constant pressure pump will start to pump water from the VG tank and pump it into the circulating water system to maintain the system pressure. When the pressure probe detects that the pressure of the circulating water system is too high, the pressure relief mode will be started. At this time, the pressure relief valve will start to pump the circulating water system into the VG tank to maintain the system pressure. It should be noted that no matter which mode, water will pass through the VG tank. The VG tank is a water storage tank with a weighing sensor at its foot to detect the weight of the water content. Whether it is water replenishment or high-level water discharge, whether it is pressure replenishment or pressure relief, the system can record the water volume changes generated by each action.

[0005] Dosing equipment is mainly used for water prevention, treatment and removal of pollutants, and is widely used in circulation systems, water plants, sewage treatment plants, industrial water treatment and other fields. Its main function is to automatically add chemical agents to ensure that water quality meets standards and protect system pipelines and equipment components on the pipelines. The further strengthening of environmental protection awareness has promoted the market demand for water-saving, efficient and accurate dosing solutions.

[0006] like Figure 2As shown in the figure, it is a structural diagram of the dosing equipment in the existing circulating water system. Its operating principle is: when the dosing equipment is connected to the circulating water system, the drainage port will maintain a relatively small opening, so that the water in the circulating water system will slowly flow out. The two dosing pumps set parameters according to their respective dosing frequencies, usually starting at a fixed time. The dosing pump is a diaphragm pump, and its characteristic is that its dosing flow rate is a constant under a certain pressure. Therefore, as long as the pressure of the circulating water system is determined, the dosing time and stop time of the dosing pump can be set according to the water quality requirements of the system. But there will be a problem here. When the outflow of the drainage port is greater than the dosing amount of the dosing pump, the circulating water system will gradually lose pressure, resulting in the constant pressure water replenishment equipment to continuously replenish water. On the contrary, if the outflow of the drainage port is less than the dosing amount of the dosing pump, the circulating water system will gradually overpressure, and the constant pressure water replenishment equipment will often leak water. In either case, it is a waste of water resources, which will cause unnecessary troubles to the operation and maintenance team and increase the operation and maintenance costs. In addition, the drain valve of the automatic dosing device is controlled by the conductivity probe. When the conductivity is greater than the set value, the drain valve will be opened. The drain valve is generally a switch value, which will be closed after being opened for a certain period of time. This will cause a sharp fluctuation in the pressure of the water system, which is not conducive to the operation of the water system. Monitor the conductivity of the circulating water. When the conductivity rises to a certain level due to impurity accumulation, the drain valve will automatically open to discharge part of the circulating water, and fresh water will be added at the same time to ensure water quality and prevent scaling, corrosion and other problems.

[0007] Figure 3 This is a structural diagram of an existing circulating water system with constant pressure water replenishment equipment and dosing equipment. As shown in the figure: Although constant pressure water replenishment equipment and dosing equipment serve the optimization and stability of the circulating water system in the market, there is actually no intersection between the two. The usual dosing device is equipped with a drainage pipe to slowly discharge the water in the system for a long time, and at the same time, it adds drugs to the system for a long time. Such a configuration not only wastes water resources, but also wastes drug resources. It is an extensive design. The fundamental reason is that the dosing equipment manufacturer does not know when the system needs to add drugs. Although the equipment is equipped with many probes to detect water quality, these probes cannot accurately reflect the current water quality during actual use. Finally, the dosing equipment can only choose the uneconomical and unscientific operation strategy of draining water while adding drugs. It is this point that gives the constant pressure water replenishment equipment manufacturer the opportunity to integrate the two. Summary of the invention

[0008] The purpose of the present invention is to provide a circulating water system or water supply system and application with constant pressure water replenishment and drug dosing functions, which mainly solves the problems existing in the above-mentioned prior art. It cancels the long-term quantitative drainage pipe, realizes the linkage between constant pressure water replenishment and drug dosing, and changes to on-demand drug dosing and on-demand drainage; it reduces the waste of water resources, reduces the amount of drug added, reduces the impact on the environment, and reduces operating costs; it reduces repeated components and pipelines; it is highly integrated, occupies a small area, and reduces on-site installation space.

[0009] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is:

[0010] A circulating water system or water supply system with constant-pressure water replenishment and drug-adding functions, the system comprises a constant-pressure water replenishment device; the constant-pressure water replenishment device comprises a VG tank with a weighing sensor (a normal-pressure container for storing excess water in the system, containing butyl capsules inside, and the outer shell is generally made of carbon steel), the pressure replenishment outlet of the VG tank is connected to the pressure replenishment interface of the system through a pipeline equipped with a constant-pressure pump; the pressure relief interface of the system is connected to the pressure relief water inlet of the VG tank through a pipeline equipped with a pressure relief valve; a pressure probe is also provided on the pipeline between the pressure relief interface and the pressure relief valve; the VG tank is also connected to the VG tank water replenishment interface and the VG tank water relief interface with a control valve through a pipeline; the weighing sensor and the pressure probe are both connected to the signal access end of an electric control box, and the constant-pressure pump, the pressure relief valve, and the control valve are all connected to the control end of the electric control box;

[0011] Features:

[0012] The system also includes a dosing device, which includes a dosing barrel, which is connected to the pipeline between the constant pressure pump and the pressure replenishing interface of the system or directly connected to the pressure replenishing interface through a pipeline installed with a dosing pump; the dosing device also includes an instrument containing a conductivity probe, which is connected to the pipeline between the pressure relief interface and the pressure relief valve in the constant pressure water replenishment device; the instrument containing the conductivity probe is also connected to the signal access end of the electric control box of the constant pressure water replenishment device, and the dosing pump is also connected to the control end of the electric control box of the constant pressure water replenishment device.

[0013] The circulating water system or water supply system with constant pressure water replenishment and drug addition functions is characterized in that the instrument also includes a pH detector, a concentration meter, and a corrosion rate detector.

[0014] The circulating water system or water supply system with constant pressure water replenishment and dosing functions is characterized in that the dosing barrel includes a corrosion and scale inhibition dosing barrel and a bactericidal algaecide dosing barrel, and the dosing barrel includes a corrosion and scale inhibition dosing barrel and a bactericidal algaecide dosing barrel, which are respectively connected to the pipeline between the constant pressure pump and the system's pressure replenishing interface through a pipeline equipped with a dosing pump or directly connected to the pressure replenishing interface.

[0015] The circulating water system or water supply system with constant pressure water replenishment and drug addition functions is characterized in that the pressure relief valve is an electric proportional valve that can quantitatively control the pressure relief speed.

[0016] An application of the circulating water system or water supply system with constant pressure water replenishment and drug dosing functions as described above to realize the on-demand drug dosing function in each constant pressure water replenishment mode, characterized in that:

[0017] In each water replenishment mode, the weight signal of the weighing sensor is recorded and the amount of water replenished is calculated to determine the dosage of the dosing pump; during each water replenishment process, the dosing pump is started, and the startup time of the dosing pump is proportional to the amount of water replenished, thus achieving true on-demand dosing.

[0018] An application of the above-mentioned circulating water system or water supply system with constant pressure water replenishment and drug addition functions in an internal drainage mode, characterized in that:

[0019] In the internal drainage mode, the pressure relief valve opens slightly to introduce system water into the VG tank instead of draining it directly, ensuring full utilization of water resources; as the drainage volume increases, the system pressure slowly decreases. When it reaches the set value, the system will automatically start the pressure replenishment mode to pump water from the VG tank back into the system.

[0020] An application of the above-mentioned circulating water system or water supply system with constant pressure water replenishment and drug addition functions in an improved conductivity water discharge mode, characterized in that:

[0021] The conductivity of the circulating water is monitored by a conductivity probe. When the conductivity rises to a certain level, the drain valve is automatically opened to discharge part of the circulating water. At the same time, fresh water is added through the VG tank to ensure water quality and prevent scaling and corrosion.

[0022] Through the above technical solution, the present invention has the following advantages:

[0023] 1. The system and application of the present invention eliminates the long-term quantitative drainage tube, realizes linkage between constant pressure water replenishment and drug addition, and changes to on-demand drug addition and on-demand drainage.

[0024] 2. The system and application of the present invention reduces water resource waste, reduces the amount of added chemicals, reduces the impact on the environment, and reduces operating costs.

[0025] 3. The system and application of the present invention reduces duplicate components and pipelines, such as electric control boxes and drain pipelines, and reduces equipment costs.

[0026] 4. The system and application of the present invention reduces 3 on-site pipes, reducing installation costs. The equipment is highly integrated, occupies a small area, and reduces on-site installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural diagram of a constant pressure water replenishment device in an existing circulating water system.

[0028] Figure 2 It is a structural schematic diagram of the dosing equipment in the existing circulating water system.

[0029] Figure 3 It is a structural diagram of an existing circulating water system with constant pressure water replenishment equipment and dosing equipment.

[0030] Figure 4 It is a schematic diagram of the structure of the system of the present invention. DETAILED DESCRIPTION

[0031] See also Figure 4 , the present invention discloses a circulating water system or water supply system with constant pressure water replenishment and drug addition functions. As shown in the figure: the system includes a constant pressure water replenishment device; the constant pressure water replenishment device includes a VG tank with a weighing sensor, and the pressure replenishment outlet of the VG tank is connected to the pressure replenishment interface of the system through a pipeline equipped with a constant pressure pump; the pressure relief interface of the system is connected to the pressure relief water inlet of the VG tank through a pipeline equipped with a pressure relief valve; a pressure probe is also provided on the pipeline between the pressure relief interface and the pressure relief valve; the VG tank is also connected to the VG tank water replenishment interface and the VG tank water discharge interface with a control valve through a pipeline; the weighing sensor and the pressure probe are both connected to the signal access end of an electric control box, and the constant pressure pump, the pressure relief valve, and the control valve are all connected to the control end of the electric control box.

[0032] The system also includes a dosing device, which includes a dosing barrel, which is connected to the pipeline between the constant pressure pump and the pressure replenishing interface of the system or directly connected to the pressure replenishing interface through a pipeline installed with a dosing pump; the dosing device also includes an instrument containing a conductivity probe, which is connected to the pipeline between the pressure relief interface and the pressure relief valve in the constant pressure water replenishment device; the instrument containing the conductivity probe is also connected to the signal access end of the electric control box of the constant pressure water replenishment device, and the dosing pump is also connected to the control end of the electric control box of the constant pressure water replenishment device.

[0033] In the present invention, the instrument also includes a pH detector, a concentration meter, and a corrosion rate detector.

[0034] In the present invention, the dosing barrel includes a corrosion and scale inhibition dosing barrel and a sterilization and algae killing dosing barrel. The dosing barrel includes a corrosion and scale inhibition dosing barrel and a sterilization and algae killing dosing barrel, which are respectively connected to the pipeline between the constant pressure pump and the system's pressure replenishing interface through a pipeline equipped with a dosing pump or directly connected to the pressure replenishing interface.

[0035] In the present invention, the pressure relief valve is an electric proportional valve, which can quantitatively control the pressure relief speed.

[0036] The present invention also discloses an application of the above-mentioned circulating water system or water supply system with constant-pressure water replenishment and drug addition functions to realize the drug addition function on demand in each constant-pressure water replenishment mode.

[0037] In each water replenishment mode, the weight signal of the weighing sensor is recorded and the amount of water replenished is calculated to determine the dosage of the dosing pump; during each water replenishment process, the dosing pump is started, and the startup time of the dosing pump is proportional to the amount of water replenished, thus achieving true on-demand dosing.

[0038] The present invention also discloses an application of the above-mentioned circulating water system or water supply system with constant pressure water replenishment and drug addition functions in an internal drainage mode:

[0039] In the internal drainage mode, the pressure relief valve opens slightly to introduce system water into the VG tank instead of draining it directly, ensuring full utilization of water resources; as the drainage volume increases, the system pressure slowly decreases. When it reaches the set value, the system will automatically start the pressure replenishment mode to pump water from the VG tank back into the system.

[0040] The present invention also discloses an application of the above-mentioned circulating water system or water supply system with constant pressure water replenishment and drug addition functions in an improved conductivity water discharge mode:

[0041] The conductivity of the circulating water is monitored by a conductivity probe. When the conductivity rises to a certain level, the drain valve is automatically opened to discharge part of the circulating water. At the same time, fresh water is added through the VG tank to ensure water quality and prevent scaling and corrosion.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circulating water system or water supply system with constant pressure water replenishment and drug addition functions, the system comprising a constant pressure water replenishment device; the constant pressure water replenishment device comprises a VG tank with a weighing sensor, the pressure replenishment outlet of the VG tank is connected to the pressure replenishment interface of the system through a pipeline equipped with a constant pressure pump; the pressure relief interface of the system is connected to the pressure relief water inlet of the VG tank through a pipeline equipped with a pressure relief valve; a pressure probe is also provided on the pipeline between the pressure relief interface and the pressure relief valve; the VG tank is also connected to the VG tank water replenishment interface and the VG tank water relief interface with a control valve through a pipeline; the weighing sensor and the pressure probe are all connected to the signal access end of an electric control box, and the constant pressure pump, the pressure relief valve and the control valve are all connected to the control end of the electric control box; Features: The system also includes a dosing device, which includes a dosing barrel, which is connected to the pipeline between the constant pressure pump and the pressure replenishing interface of the system or directly connected to the pressure replenishing interface through a pipeline installed with a dosing pump; the dosing device also includes an instrument containing a conductivity probe, which is connected to the pipeline between the pressure relief interface and the pressure relief valve in the constant pressure water replenishment device; the instrument containing the conductivity probe is also connected to the signal access end of the electric control box of the constant pressure water replenishment device, and the dosing pump is also connected to the control end of the electric control box of the constant pressure water replenishment device.

2. The circulating water system or water supply system with constant pressure water replenishment and drug addition functions according to claim 1, characterized in that: The instrument also includes pH detector, concentration meter, corrosion rate detector, etc.

3. The circulating water system or water supply system with constant pressure water replenishment and drug addition functions according to claim 1, characterized in that: The dosing barrel includes a corrosion and scale inhibition dosing barrel and a sterilization and algae killing dosing barrel. The dosing barrel includes a corrosion and scale inhibition dosing barrel and a sterilization and algae killing dosing barrel, which are respectively connected to the pipeline between the constant pressure pump and the system's pressure replenishing interface through a pipeline equipped with a dosing pump or directly connected to the pressure replenishing interface.

4. The circulating water system or water supply system with constant pressure water replenishment and drug addition functions according to claim 1, characterized in that: The pressure relief valve is an electric proportional valve that can quantitatively control the pressure relief speed.

5. An application of a circulating water system or water supply system with constant pressure water replenishment and drug dosing functions as claimed in claim 1, 2, 3 or 4 to realize the on-demand drug dosing function in each constant pressure water replenishment mode, characterized in that: In each water replenishment mode, the weight signal of the weighing sensor is recorded and the amount of water replenished is calculated to determine the dosage of the dosing pump; during each water replenishment process, the dosing pump is started, and the startup time of the dosing pump is proportional to the amount of water replenished, thus achieving true on-demand dosing.

6. An application of a circulating water system or water supply system with constant pressure water replenishment and drug addition functions as claimed in claim 1, 2, 3 or 4 in a newly added internal drainage mode, characterized in that: In the internal drainage mode, the pressure relief valve opens slightly to drain the system water into the VG tank instead of discharging it directly, ensuring the full utilization of water resources; as the drainage volume increases, the system pressure slowly decreases. When it reaches the set value, the system will automatically start the pressure replenishment mode to pump water from the VG tank into the system again.

7. An application of a circulating water system or water supply system with constant pressure water replenishment and drug addition functions as claimed in claim 1, 2, 3 or 4 in an improved conductivity drainage mode, characterized in that: The conductivity of the circulating water is monitored by a conductivity probe. When the conductivity rises to a certain level, the drain valve is automatically opened to discharge part of the circulating water. At the same time, fresh water is added through the VG tank to ensure water quality and prevent scaling and corrosion.

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