Self-circulation flow control system

Abstract

The utility model discloses a self-circulation flow control system which is used for reducing the number of flow meters and reducing the cost of flow control. The device comprises a circulating pipeline, a discharge pipeline, a water inlet pipe and a circulating pump, the circulating pump is arranged on the circulating pipeline, the water inlet pipe is connected with the circulating pump, and the circulating pump is used for driving liquid in the circulating pipeline to flow; a flow meter is arranged on the circulating pipeline, the flow meter is used for measuring the flow of liquid in the circulating pipeline, a three-way pipe fitting is arranged on the circulating pipeline, the three-way pipe fitting is located between the circulating pump and the flow meter, and the discharging pipeline is communicated with the circulating pipeline through the three-way pipe fitting.

Description

Technical Field

[0001] This application relates to the technical field of flow circulation control, and particularly to a self-circulating flow control system. Background Art

[0002] In many fields such as industrial production, water resource management, and environmental protection, flow control is a crucial link. Especially in situations where it is necessary to simultaneously control the recycled water volume and the discharge volume, such as industrial cooling water circulation systems, wastewater treatment systems, etc.

[0003] However, the flow control in traditional technologies often requires multiple flow meters to separately monitor and control the flow rates of different pipelines, which not only increases complexity and cost, but also the multiple control points are prone to cause a decrease in control accuracy.

[0004] In addition, when adjusting the recycled water volume and the discharge volume in traditional technologies, it is often difficult to achieve precise synchronization, resulting in large flow fluctuations and affecting the stability and efficiency of flow control.

[0005] Based on this, this application proposes a self-circulating flow control system to solve the above technical problems. Utility Model Content

[0006] To solve the above technical problems, this application provides a self-circulating flow control system, which can reduce the number of flow meters and lower the cost of flow control.

[0007] A self-circulating flow control system provided by this application includes:

[0008] A circulating pipeline, a discharge pipeline, a water inlet pipe, and a circulating pump; the circulating pump is arranged on the circulating pipeline, the water inlet pipe is connected to the circulating pump, and the circulating pump is used to drive the liquid in the circulating pipeline to flow; a flow meter is arranged on the circulating pipeline, the flow meter is used to measure the flow rate of the liquid in the circulating pipeline, a three-way pipe fitting is arranged on the circulating pipeline, the three-way pipe fitting is located between the circulating pump and the flow meter, and the discharge pipeline is communicated with the circulating pipeline through the three-way pipe fitting.

[0009] Optionally, the circulating pipeline includes a circulating pipe and a total amount regulating valve and a circulating amount regulating valve arranged on the circulating pipe, the total amount regulating valve is located between the three-way pipe fitting and the circulating pump, and the circulating amount regulating valve is located behind the liquid flow direction of the flow meter.

[0010] Optionally, the discharge pipeline includes a discharge pipe and a discharge amount regulating valve arranged on the discharge pipe, and the discharge amount regulating valve is used to regulate the flow rate of the liquid in the discharge pipe.

[0011] Optionally, the self - circulating flow control system further includes a control device, which is electrically connected to the circulation pump, the flow meter, the total flow regulating valve, the circulation flow regulating valve, and the displacement regulating valve respectively.

[0012] Optionally, the circulation pump is one of a centrifugal circulation pump, an axial - flow circulation pump, and a magnetic - force circulation pump.

[0013] Optionally, the flow meter is one of an electromagnetic flow meter, an ultrasonic flow meter, and a turbine flow meter.

[0014] Optionally, the self - circulating flow control system further includes a pressure sensor, which is arranged on the circulation pipe and is used to detect the pressure in the circulation.

[0015] Optionally, a temperature sensor is arranged on the circulation pump, and the temperature sensor is used to measure the temperature of the circulation pump.

[0016] Optionally, the self - circulating flow control system further includes an alarm device, which is electrically connected to the pressure sensor and the temperature sensor respectively.

[0017] It can be seen from the above technical solutions that the present application has the following effects:

[0018] In the present application, by setting the circulation pipeline to be connected to the discharge pipeline, a circulation pump is arranged on the circulation pipeline to provide circulating power for the liquid in the circulation pipeline. A flow meter is arranged on the circulation pipeline to measure the flow rate of the liquid in the circulation pipeline. The liquid circulates in the circulation pipeline under the action of the circulation pump. When discharge is required, a part of the liquid that is circulating is discharged through the discharge pipeline. Thus, the flow rate of the circulation pipeline can be monitored by a single flow meter, and then the flow rate of the discharge pipeline can be calculated, realizing the requirement of controlling both the circulating water consumption and the discharge amount with a single flow meter. Compared with the prior art, the number of flow meters is reduced, the system structure is simplified, and the cost is saved; and the control points are reduced, the control accuracy is improved, the flow fluctuation is reduced, and the accuracy and efficiency of control are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 FIG. is a schematic diagram of a self - circulating flow control system provided by the present application;

[0021] Figure 2 Another schematic diagram of a self - circulating flow control system provided for this application;

[0022] Among them, the water inlet pipe 01, the circulation pump 02, the flow meter 03, the three - way pipe fitting 04, the circulation pipe 05, the total flow regulating valve 06, the circulation flow regulating valve 07, the discharge pipe 08, the discharge flow regulating valve 09, the control device 10, the pressure sensor 11, and the temperature sensor 12. Specific implementation manner

[0023] In the present utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings, and is only used to illustrate the relative positional relationship between each component or constituent part, and does not particularly limit the specific installation orientation of each component or constituent part.

[0024] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above - mentioned terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0025] In addition, the terms "installation", "setting", "provided with", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or constituent parts. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in this application can be understood according to specific circumstances.

[0026] In addition, the structures, ratios, sizes, etc. drawn in the drawings in this application are only used to cooperate with the content disclosed in the specification for those of ordinary skill in the art to understand and read, and are not used to limit the implementable conditions of this application. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0027] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by this application.

[0028] The present application provides a self - circulating flow control system, which is used to reduce the number of flow meters and lower the cost of flow control. The specific implementation process of the present application is described as follows.

[0029] Please refer to Figure 1 With Figure 2 , a self - circulating flow control system provided by the present application includes:

[0030] A circulating pipeline, a discharge pipeline, a water inlet pipe 01, and a circulating pump 02; the circulating pump 02 is arranged on the circulating pipeline, the water inlet pipe 01 is connected to the circulating pump 02, and the circulating pump 02 is used to drive the liquid flow in the circulating pipeline; a flow meter 03 is arranged on the circulating pipeline, the flow meter 03 is used to measure the flow rate of the liquid in the circulating pipeline, a three - way fitting 04 is arranged on the circulating pipeline, the three - way fitting 04 is located between the circulating pump 02 and the flow meter 03, and the discharge pipeline is communicated with the circulating pipeline through the three - way fitting 04.

[0031] The circulating pipeline is used to control the circulating flow of the liquid. The circulating pump 02 is arranged on the circulating pipeline, and the circulating pump 02 is used to drive the liquid flow. The discharge pipeline is used to discharge part of the liquid in the circulating pipeline. The discharge pipeline is communicated with the circulating pipeline through the three - way fitting 04, allowing the liquid to be diverted from the circulating pipeline when needed.

[0032] The water inlet pipe 01 is connected to the circulating pump 02 to provide new liquid or supplementary liquid for the circulating pipeline; the circulating pump 02 is installed on the circulating pipeline, and when the circulating pump 02 works, it is used to drive the liquid flow in the circulating pipeline.

[0033] The flow meter 03 is installed on the circulating pipeline and is used to measure the flow rate of the liquid in the circulating pipeline, providing flow feedback data for the self - circulating flow control system.

[0034] In this embodiment, for the traditional method that requires installing a flow meter 03 on each branch pipeline to ensure the precise control of each branch flow rate, the self - circulating flow control system provided by the present application simplifies the system structure significantly, reduces the hardware cost and installation complexity by only using one flow meter 03 installed on the circulating pipeline and controlling the circulating water volume and discharge volume simultaneously; since only one flow meter 03 is used, the number of additional flow monitoring points and control points is reduced, thereby reducing the overall cost and maintenance burden. The reduced number of hardware also means that the system occupies less space and is more suitable for environments with limited space.

[0035] In an optional embodiment, the circulating pipeline includes a circulating pipe 05, a total flow regulating valve 06, and a circulating flow regulating valve 07 arranged on the circulating pipe 05. The total flow regulating valve 06 is located between the three - way fitting 04 and the circulating pump 02, and the circulating flow regulating valve 07 is located behind the flow meter 03 in the liquid flow direction.

[0036] The total flow control valve 06 is arranged on the circulation pipe 05, specifically located between the three-way pipe fitting 04 and the circulation pump 02. The total flow control valve 06 can control the total amount of liquid flowing out of the circulation pump 02, facilitating subsequent flow distribution and adjustment. The function of the total flow control valve 06 is to adjust the total amount of liquid entering the circulation pipeline. By adjusting the opening degree of the control valve, the amount of liquid flowing from the circulation pump 02 to the system can be accurately controlled, thereby meeting the demand for the total flow rate.

[0037] On the circulation pipeline, the three-way pipe fitting 04 is located behind the total flow control valve 06, ensuring that the liquid adjusted by the total flow control valve 06 can smoothly enter the circulation pipeline and the discharge pipeline.

[0038] The circulation flow control valve 07 is located behind the flowmeter 03 in the liquid flow direction. After the liquid flows through the flowmeter 03 and its flow rate is measured, the circulation flow control valve 07 then further adjusts the liquid to ensure that the circulation flow control valve 07 can perform precise adjustment based on accurate flow data. The circulation flow control valve 07 is used to adjust the liquid circulation volume in the circulation pipeline. Specifically, by adjusting the opening degree of the valve, the amount of liquid entering the circulation pipeline is controlled, thereby meeting the system's demand for the circulation volume. At the same time, the circulation flow control valve 07 can also work in coordination with the discharge flow control valve to jointly maintain the flow balance of the system.

[0039] In this alternative embodiment, the discharge pipeline includes a discharge pipe 08 and a discharge flow control valve 09 arranged on the discharge pipe 08. The discharge flow control valve 09 is used to adjust the flow rate of the liquid in the discharge pipe 08.

[0040] The discharge pipe 08 serves as a pipeline connecting the circulation pipeline and the external environment (such as a drainage system). The drain pipe is used to discharge part of the liquid in the circulation pipeline from the system. The discharge pipe 08 is usually made of corrosion-resistant and high-pressure-resistant materials to ensure its long-term stable operation.

[0041] The discharge flow control valve 09 is arranged on the discharge pipe 08, located between the three-way pipe fitting 04 and the external environment (such as a drainage system). The discharge flow control valve 09 can accurately control the amount of liquid discharged from the circulation pipeline to the external environment. The discharge flow control valve 09 is used to adjust the flow rate of the liquid in the discharge pipe 08. Specifically, by adjusting the opening degree of the valve, the amount of discharged liquid is controlled, thereby meeting the system's demand for the discharge volume.

[0042] In this alternative embodiment, the self - circulating flow control system further includes a control device 10. The control device 10 is electrically connected to the circulation pump 02, the flow meter 03, the total flow regulating valve 06, the circulation flow regulating valve 07, and the displacement regulating valve 09 respectively. In this embodiment, the control device 10 is used to receive data from various sensors (such as the flow reading of the flow meter 03, the readings of the pressure sensor 11, the readings of the temperature sensor 12, etc.), and then send control instructions to each actuator (such as the circulation pump 02, the total flow regulating valve 06, the circulation flow regulating valve 07, and the displacement regulating valve 09) to achieve the automatic control of the self - circulation of the system flow rate.

[0043] In an alternative embodiment, the circulation pump 02 is one of a centrifugal circulation pump, an axial - flow circulation pump, and a magnetic - drive circulation pump.

[0044] In an alternative embodiment, the flow meter 03 is one of an electromagnetic flow meter, an ultrasonic flow meter, or a turbine flow meter.

[0045] In an alternative embodiment, the self - circulating flow control system further includes a pressure sensor 11. The pressure sensor 11 is arranged on the circulation pipe 05. The pressure sensor 11 is used to detect the pressure inside the circulation. The pressure sensor 11 is electrically connected to the above - mentioned control device 10. The pressure sensor 11 monitors the value of the pressure inside the circulation pipeline in real - time, converts the detected pressure value into an electrical signal, and transmits it to the control device 10 in real - time through the electrical connection. The pressure sensor 11 is electrically connected to the control device 10 through wires or cables.

[0046] In an alternative embodiment, a temperature sensor 12 is arranged on the circulation pump 02. The temperature sensor 12 is used to measure the temperature of the circulation pump 02. The temperature sensor 12 is installed at key parts of the circulation pump 02, such as the motor, the bearing, or the pump body, etc., to ensure that the temperature change of the circulation pump 02 during operation can be accurately captured. The temperature sensor 12 is electrically connected to the above - mentioned control device 10 through wires or cables, so as to convert the detected temperature value into an electrical signal and upload it to the control device 10.

[0047] By setting the temperature sensor 12, the overheating problem of the circulation pump 02 can be discovered and processed in time, preventing equipment damage or safety accidents caused by excessive temperature.

[0048] In this alternative embodiment, the self-circulating flow control system further includes an alarm device, which is electrically connected to the pressure sensor 11 and the temperature sensor 12 respectively. In this embodiment, the alarm device is configured to receive signals from the pressure sensor 11 and the temperature sensor 12, and is further configured to automatically trigger an alarm mechanism when abnormal data (such as pressure exceeding the normal range, temperature being too high) is detected. The alarm mechanism includes emitting a loud alarm sound, lighting a warning light, or sending an alarm message to the operator by means of text message, email, etc.

[0049] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-circulating flow control system, characterized in that, Comprising: A circulation pipeline, a discharge pipeline, a water inlet pipe and a circulation pump; the circulation pump is arranged on the circulation pipeline, the water inlet pipe is connected to the circulation pump, and the circulation pump is used to drive the liquid flow in the circulation pipeline; a flow meter is arranged on the circulation pipeline, the flow meter is used to measure the flow rate of the liquid in the circulation pipeline, a three-way pipe fitting is arranged on the circulation pipeline, the three-way pipe fitting is located between the circulation pump and the flow meter, and the discharge pipeline is communicated with the circulation pipeline through the three-way pipe fitting.

2. The self-circulating flow control system according to claim 1, characterized in that The circulation pipeline includes a circulation pipe and a total flow regulating valve and a circulation flow regulating valve arranged on the circulation pipe. The total flow regulating valve is located between the three-way pipe fitting and the circulation pump, and the circulation flow regulating valve is located behind the liquid flow direction of the flow meter.

3. The self-circulating flow control system according to claim 2, wherein The discharge pipeline includes a discharge pipe and a discharge flow regulating valve arranged on the discharge pipe. The discharge flow regulating valve is used to regulate the flow rate of the liquid in the discharge pipe.

4. The self-circulating flow control system according to claim 3, wherein The self-circulation flow control system further includes a control device, and the control device is electrically connected to the circulation pump, the flow meter, the total flow regulating valve, the circulation flow regulating valve and the discharge flow regulating valve respectively.

5. The self-circulating flow control system according to any one of claims 1 to 4, characterized in that, The circulation pump is one of a centrifugal circulation pump, an axial flow circulation pump and a magnetic circulation pump.

6. The self-circulating flow control system according to any one of claims 1 to 4, characterized in that, The flow meter is one of an electromagnetic flow meter, an ultrasonic flow meter or a turbine flow meter.

7. The self-circulating flow control system according to any one of claims 1 to 4, characterized in that The self-circulation flow control system further includes a pressure sensor, the pressure sensor is arranged on the circulation pipe, and the pressure sensor is used to detect the pressure in the circulation.

8. The self-circulating flow control system according to claim 7, wherein A temperature sensor is arranged on the circulation pump, and the temperature sensor is used to measure the temperature of the circulation pump.

9. The self-circulating flow control system according to claim 8, wherein The self-circulation flow control system further includes an alarm device, and the alarm device is electrically connected to the pressure sensor and the temperature sensor respectively.

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