CN115388960A - Flow detection device and water pump - Google Patents

Abstract

The invention discloses a flow detection device and a water pump. The flow detection device includes an installation pipe, a detection pipe and a flow meter, the installation pipe is provided with a support frame, the detection pipe is arranged on the support frame and arranged in the air inside the installation pipe, and the flow meter includes a sensor , the sensor is arranged in the detection pipeline; the two ends of the installation pipeline are respectively provided with connecting flanges. Realize the reduction of the length of the straight pipe section that needs to be configured for the installation of the flowmeter, so as to reduce the floor space required for the installation of the water pump.

Description

Flow detection device and water pump

technical field

The invention relates to the technical field of water supply equipment, in particular to a flow detection device and a water pump.

Background technique

Water pumps are widely used in industrial production water and residential water. During the use of water pumps, they are usually equipped with flow meters to detect the flow of water pumps. In order to meet the requirements of accurate flow measurement, according to the provisions of 5.12 straight pipe section length in the machinery industry standard JB/T9248-2015, in order to ensure the uniformity of the flow rate and improve the measurement accuracy, the upstream and downstream of the flowmeter should be set in the straight pipe section Among them, the length L of the straight pipe section needs to reach 5-10 times the diameter of the straight pipe section. For this reason, in the actual use process, in order to meet the requirements of installing the flowmeter, a long straight pipe needs to be connected to the water pump to install the flowmeter through the straight pipe, and the length of the straight pipe is the same as the inlet and outlet pipes of the water pump. diameter to match. And because the length L of the straight pipe section needs to reach the requirement of 5-10 times the diameter of the straight pipe section, this will cause the overall length of the straight pipe section to be longer, resulting in a larger floor space required for the installation of the water pump. How to design a technique for reducing the floor space required for water pump installation is the technical problem to be solved by the present invention.

Contents of the invention

The technical problem to be solved by the present invention is to provide a flow detection device and a water pump to reduce the length of the straight pipe section required for the installation of the flow meter, thereby reducing the floor space required for the installation of the water pump.

The technical solution provided by the present invention is a flow detection device, including an installation pipeline, a detection pipeline and a flow meter, a support frame is arranged in the installation pipeline, the detection pipeline is arranged on the support frame and the Inside the installation pipeline, the flow meter includes a sensor, and the sensor is arranged in the detection pipeline; the two ends of the installation pipeline are respectively provided with connecting flanges.

Further, the detection pipeline is further provided with a first deflector, and the first deflector extends along the axis of the detection pipeline and is arranged on the water inlet side of the sensor.

Further, the detection pipeline is further provided with a second deflector, and the second deflector extends along the axis of the detection pipeline and is arranged on the water outlet side of the sensor.

Further, an installation cavity is formed inside the detection pipeline, and a water inlet flow channel and a water outlet flow channel are formed in the detection pipeline, and the water inlet flow channel and the water outlet flow channel respectively communicate with the installation cavity.

Further, along the direction of water flow in the installation pipe, the outer dimension of the detection pipe gradually increases from the water inlet flow channel to the installation cavity, and increases from the installation cavity to the water outlet flow channel. slowing shrieking.

Further, the flowmeter further includes a controller and a display, the controller and the display are arranged on the outer pipe wall of the installation pipe, and the display and the sensor are respectively connected to the controller.

Further, a wiring channel is arranged in the support frame, and cables between the controller and the sensor are arranged in the wiring channel.

Further, the length of the detection pipeline is not less than 5 times the diameter of the water flow channel in the detection pipeline.

The present invention also provides a water pump, including a water pump main body, the water pump main body has a water inlet port and a water outlet port, and also includes the above-mentioned flow detection device, and the installation pipe of the flow detection device is connected to the water inlet port or the water outlet port. port.

Compared with the prior art, the advantages and positive effects of the present invention are: the flow detection device and the water pump provided by the present invention install the sensor of the flowmeter by configuring the detection pipeline, the length of the detection pipeline is shorter and the pipe diameter is smaller, so , it can meet the ratio of the diameter to the length that the sensor of the flowmeter needs to achieve in order to meet the measurement accuracy, and the flow rate of the water flow in the detection pipeline can be evenly distributed at the position of the flow channel sensor to ensure accurate measurement of the sensor of the flowmeter. As for the detection pipeline, its size is smaller than that of the water inlet and outlet of the water pump, which can reduce the space occupied by the overall installation of the water pump, and realize the reduction of the length of the straight pipe section that needs to be configured for the installation of the flowmeter. Small footprint required to install the pump.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is one of the structural schematic diagrams of the embodiments of the flow detection device of the present invention;

Fig. 2 is A side view in Fig. 1;

Fig. 3 is the second structural schematic diagram of the embodiment of the flow detection device of the present invention;

Fig. 4 is a schematic structural diagram of an embodiment of the water pump of the present invention.

Reference signs:

Install pipeline 10, support frame 1, detection pipeline 2, flow meter 3;

Connecting flange 11, first deflector 21, second deflector 22, installation cavity 23, water inlet flow channel 24, water outlet flow channel 25;

Sensor 31, controller 32;

Water pump main body 100.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1-2, the flow detection device of this embodiment includes an installation pipeline 10, a detection pipeline 2 and a flow meter 3, a support frame 1 is arranged in the installation pipeline 10, and the detection pipeline 2 is arranged on the support frame 1 and suspended in the air Arranged inside the installation pipe 10 , the flow meter 3 includes a sensor 31 provided in the detection pipe 2 .

Specifically, the flow detection device of this embodiment uses the installation pipe 10 to connect with the water pump, and the sensor 31 of the flow meter 3 is arranged in the detection pipe 2 . For the detection pipeline 2, the overall detection pipeline 2 has a straight pipe structure, and the ratio of the flow path length to the flow path diameter of the detection pipeline 2 meets the requirements of the straight pipe section length required by the national standard, that is, the length of the detection pipeline 2 is not less than Detect 5 times the diameter of the flow path in pipe 2.

However, in the actual use process, the water flow flows into the installation pipeline 10, and the water flow in the installation pipeline 10 will also flow into the detection pipeline 2. The water flow passing through the detection pipeline 2 passes through the sensor 31, and then passes through the flow meter 3 to measure the flow rate. detection.

Since the flow path length and flow path diameter of the detection pipeline 2 are shorter than the length of the straight pipe section required by the national standard, the water flow velocity in the detection pipeline 2 is evenly distributed, thereby improving the detection accuracy of the sensor 31 .

In addition, for the detection pipeline 2 as a whole, its overall length is relatively small, so as to meet the installation requirements of the flowmeter 3 under the condition of relatively small length. And when it is installed and used together with the water pump in the later stage, since the overall length of the flow detection device is small, the space required for the installation of the water pump can be effectively reduced.

Further, as shown in FIG. 1 , a first deflector 21 is further arranged in the detection pipeline 2 , and the first deflector 21 extends along the axis of the detection pipeline 2 and is arranged on the water inlet side of the sensor 31 .

Specifically, by configuring the first deflector 21 in the detection pipeline 2, the first deflector 21 can better guide the water flow flowing into the detection pipeline 2, and the first guide plate is along the axial direction of the detection pipeline 2. The extended arrangement enables the water flow to flow more quickly and smoothly in the detection pipeline 2 , thereby better balancing the flow velocity of the water flow in the detection pipeline 2 . Still further, a second deflector 22 is also provided in the detection pipeline 2 , and the second deflector 22 extends along the axis of the detection pipeline 2 and is arranged on the water outlet side of the sensor 31 . Specifically, the second deflector 22 is also configured on the water outlet side of the sensor 31 in the detection pipeline 2 to guide the smooth flow of the water flow in the detection pipeline 2, thereby more effectively ensuring that the flow rate of the water flow in the detection pipeline 2 reaches Uniformity.

Similarly, as shown in FIG. 3 , an installation cavity 23 is formed inside the detection pipeline 2 , and a water inlet flow channel 24 and an outlet water flow channel 25 are formed in the detection pipeline 2 , and the water inlet flow channel 24 and the water outlet flow channel 25 communicate with the installation cavity 23 respectively. .

Specifically, in order to reduce the overall length of the detection pipeline 2 more effectively and meet the installation requirements of the sensor 31, an installation cavity 23 can be formed in the middle of the maintenance pipeline to install the sensor 31, and the installation cavity 23 The two sides of the water inlet flow channel 24 and the water outlet flow channel 25, which are smaller in diameter than the installation cavity 23, are used to meet the requirements of the straight pipe section length when the flowmeter 3 detects At the same time, since the diameters of the water inlet channel 24 and the water outlet channel 25 are relatively small, the overall length of the detection pipeline 2 can be shortened more effectively.

Further, along the direction of water flow in the installation pipe 10 , the outer dimension of the detection pipe 2 gradually increases from the water inlet channel 24 to the installation cavity 23 , and gradually decreases from the installation cavity 23 to the water outlet channel 25 .

Specifically, since the detection pipeline 2 is suspended in the installation pipeline 10 through the support frame 1, in order to reduce the large water resistance caused by the detection pipeline 2 to the water flow in the installation pipeline 10, the water inlet end and the water outlet end of the detection pipeline 2 They are all arranged in a conical structure to play a role in diverting the water flow, thereby reducing the water resistance to the water flow.

In some embodiments, in order to facilitate the user to view the water flow value detected by the flow meter 3, the flow meter 3 further includes a controller 32 and a display, and the controller and the display are arranged on the outer pipe wall of the installation pipe 10 , the display and the sensor 31 are respectively connected to the controller. Wherein, the representation entity of the controller 32 may adopt devices such as a single chip microcomputer in the conventional technology, which is not limited here.

In another embodiment, in order to facilitate the wiring of the sensor 31 , a wiring channel (not marked) is provided in the support frame 1 , and the cables between the controller and the sensor 31 are arranged in the wiring channel.

Furthermore, in order to facilitate the connection between the flow detection device and the water pump, the two ends of the installation pipeline 10 are respectively provided with connecting flanges 11

As shown in Figure 4, the present invention also provides a water pump, including a water pump main body 100, the water pump main body has a water inlet port 1001 and a water outlet port 1002, and also includes the above-mentioned flow detection device, the installation pipe of the flow detection device is connected to The water inlet port or the water outlet port.

Specifically, when the flow detection device is assembled with the water pump main body, the flow detection device is connected to the water inlet port or the water outlet port of the water pump main body through the connecting flange. For the main body of the water pump, the size of the water inlet port and the water outlet port match the installation pipe 10 , and the detection pipe 2 built in the installation pipe 10 is used to install the sensor 31 of the flow meter 3 . In this way, it is not necessary to configure the length of the straight pipe section according to the size of the water inlet port or the water outlet port of the water pump main body, so that the floor space required for installing the water pump can be reduced as a whole.

The water pump main body 100 may be additionally equipped with a controller according to functional requirements, and the flow detection device is electrically connected to the controller. Among them, in order to meet the requirements of remote monitoring, the controller is also equipped with a wireless communication module (such as 4G module or 5G module, etc.), so as to realize remote communication control. The controller is also equipped with a display screen, and the motor is provided with a current transformer and a voltage transformer, and the current transformer and the voltage transformer are respectively electrically connected to the controller, and then displayed through the display screen. current and voltage of the motor. In the actual use process, the water power of the pump can be calculated through the flow head of the pump, and the electric power can be calculated through the current and voltage, and the efficiency of the pump can be further calculated. In this way, the controller can display the current and voltage of the motor, the flow rate of the water pump and the efficiency of the water pump through the display screen.

Compared with the prior art, the advantages and positive effects of the present invention are: the flow detection device and the water pump provided by the present invention install the sensor of the flowmeter by configuring the detection pipeline, the length of the detection pipeline is shorter and the pipe diameter is smaller, so , it can meet the ratio of the diameter to the length that the sensor of the flowmeter needs to achieve in order to meet the measurement accuracy, and the flow rate of the water flow in the detection pipeline can be evenly distributed at the position of the flow channel sensor to ensure accurate measurement of the sensor of the flowmeter. As for the detection pipeline, its size is smaller than that of the water inlet and outlet of the water pump, which can reduce the space occupied by the overall installation of the water pump, and realize the reduction of the length of the straight pipe section that needs to be configured for the installation of the flowmeter. Small footprint required to install the pump.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (9)

1. A flow detection device is characterized by comprising an installation pipeline, a detection pipeline and a flowmeter, wherein a support frame is arranged in the installation pipeline, the detection pipeline is arranged on the support frame and is arranged in the installation pipeline in a suspended mode, the flowmeter comprises a sensor, and the sensor is arranged in the detection pipeline; and two end parts of the mounting pipeline are respectively provided with a connecting flange.

2. The flow sensing device of claim 1, wherein a first baffle is further disposed in the sensing conduit, the first baffle extending along an axis of the sensing conduit and disposed on a water intake side of the sensor.

3. A flow sensing device according to claim 2, wherein a second baffle is further provided in the sensing conduit, the second baffle extending along the axis of the sensing conduit and being disposed on the water outlet side of the sensor.

4. The flow rate detecting device according to claim 1, wherein a mounting cavity is formed inside the detecting pipe, a water inlet channel and a water outlet channel are formed in the detecting pipe, and the water inlet channel and the water outlet channel are respectively communicated with the mounting cavity.

5. The flow sensing device of claim 4, wherein the outer dimension of the sensing tube increases from the inlet channel to the mounting cavity and decreases from the mounting cavity to the outlet channel in the direction of flow of water in the mounting tube.

6. A flow sensing device according to claim 1, wherein the flow meter further comprises a controller and a display, the controller and the display being arranged on an outer pipe wall of the installation conduit, the display and the sensor being respectively connected to the controller.

7. The flow sensing device of claim 6, wherein a wiring channel is provided in the support frame, and a cable between the controller and the sensor is disposed in the wiring channel.

8. A flow sensing device according to any one of claims 1 to 7, wherein the length of the sensing conduit is no less than 5 times the diameter of the water flow path in the sensing conduit.

9. A water pump comprising a water pump body having a water inlet port and a water outlet port, characterized by further comprising a flow detection device according to any one of claims 1 to 8, the installation pipe of the flow detection device being connected to the water inlet port or the water outlet port.

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