Flowmeter with protection function
By designing a balance chamber and filter in the flowmeter, and setting a discharge port and a one-way valve, the problems of poor durability, difficult maintenance, and limited measurement accuracy of existing flowmeters in high-pressure and solid particle fluids have been solved, and a better solution has been achieved. High durability, ease of maintenance and measurement accuracy.
Patent Information
- Application Number
- CN202421104320.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-20
AI Technical Summary
When existing flow meters face high pressure or fluid containing solid particles, they have poor durability, difficulty in maintenance, and limited measurement accuracy.
A flow meter with protection function is designed, using a balance chamber and balance piston structure to alleviate high-pressure impact, setting up a filter screen and a discharge port to filter solid particles and facilitate maintenance, and optimizing the flow through a one-way valve and a telescopic hose The design of flow, metering chamber and buffer chamber ensures that the flowmeter can still measure accurately in high pressure and solid particle fluids.
It improves the durability and maintenance convenience of the flow meter, improves the measurement accuracy in high pressure and fluids containing solid particles, and protects the metering mechanism through filters and automatic pressure adjustment.
Smart Images
Figure CN222379146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluid control devices, and more specifically, to a flow meter with a protection function. Background Art
[0002] In the industrial production process, accurate measurement of fluid is a crucial link. Flowmeter, as an instrument for measuring fluid flow, is widely used in chemical, petroleum, pharmaceutical, food and other industries. Traditional flowmeters usually include a metering chamber for measuring the amount of fluid passing through and a buffer chamber connected to the metering chamber to reduce the impact of fluid flow on measurement accuracy. However, these flowmeters often have problems such as poor durability, difficult maintenance, and limited measurement accuracy when facing high pressure or fluids containing solid particles. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a flow meter with a protection function. The problem to be solved by the utility model is: when facing high pressure and fluid containing solid particles, there are often problems such as poor durability, difficult maintenance, and limited measurement accuracy.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A flow meter with a protective function comprises a shell and a base, wherein the base is fixedly mounted on the bottom of the shell, and is characterized in that: a balancing chamber is fixedly connected to the top of the shell, a balancing piston is slidably arranged inside the balancing chamber, a buffer chamber separated by a partition is arranged at the lower part of the shell, a flow tube is arranged on the partition, one end of the flow tube is communicated with the balancing chamber and is located below the balancing piston, and the other end of the flow tube is communicated with the buffer chamber, a one-way valve is arranged on the balancing piston, a telescopic hose is arranged at the upper end of the one-way valve, one end of the telescopic hose extends to the outside of the balancing chamber and is connected with a liquid outlet pipe, a filter is arranged on the lower side of the buffer chamber and below the flow tube, a metering chamber is arranged inside the shell and on one side of the buffer chamber, a metering impeller is rotatably arranged inside the metering chamber, a liquid inlet pipe is arranged on the shell on the upper side of the metering chamber, and the lower part of the metering chamber is communicated with the buffer chamber.
[0006] A preferred technical solution, a preferred technical solution, the one-way valve includes a through hole, a hollow plate is fixedly installed at the bottom of the inner cavity of the through hole, a spring is fixedly installed on the top of the hollow plate, a sealing block is fixedly connected to the top of the spring, and the sealing block is located at the bottom of the inner cavity of the oil outlet hood.
[0007] According to a preferred technical solution, the upper side of the one-way valve is connected to the lower end of the telescopic hose through a liquid outlet hood, the sealing block is located at the bottom of the inner cavity of the liquid outlet hood, the lower part of the liquid outlet hood is connected to the upper end of the through hole, and the upper part of the liquid outlet hood is connected to the lower end of the telescopic hose.
[0008] According to a preferred technical solution, the outer end of the liquid outlet pipe is connected to a connecting pipe.
[0009] According to a preferred technical solution, a discharge port is provided on the outer shell on one side of the lower portion of the buffer chamber, and a cover is provided on the discharge port.
[0010] According to a preferred technical solution, a liquid infusion port is provided at the upper end of the balancing chamber.
[0011] Technical effects and advantages of the utility model:
[0012] Improved durability: The design of the balance chamber and the balance piston can effectively alleviate the impact of high-pressure fluid on the internal mechanism of the flow meter, thereby improving the durability when facing high-pressure fluid.
[0013] Enhanced maintenance convenience: A discharge port and cover are provided to facilitate cleaning and maintenance, making it easy to discharge solid impurities and reducing maintenance difficulties caused by impurity accumulation.
[0014] Improved measurement accuracy: The design of the metering chamber and buffer chamber, as well as the application of the metering impeller, ensures accurate flow measurement even in fluids containing solid particles, thus improving measurement accuracy.
[0015] Optimize fluid flow: The configuration of the one-way valve and the telescopic hose allows the fluid to flow in one direction and absorbs some vibrations and pressure fluctuations, further protecting the metering mechanism and making the fluid output more stable.
[0016] Enhanced protection function: The use of the filter can filter out solid particles or impurities in the fluid and protect the metering mechanism from damage.
[0017] Realize automatic pressure regulation: The balance piston can automatically adjust its position according to the change of fluid pressure, reduce excessive pressure and prevent damage to the components at the liquid outlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 For this utility model Figure 1 AA section structural diagram;
[0020] Figure 3 This is a schematic diagram of the matching structure of the one-way valve of the utility model;
[0021] The accompanying drawings are marked as follows: 1. outer shell; 2. balance chamber; 3. balance piston; 4. partition; 5. buffer chamber; 6. flow pipe; 7. one-way valve; 8. telescopic hose; 9. liquid outlet pipe; 10. filter screen; 11. metering chamber; 12. metering impeller; 13. liquid inlet pipe; 14. connecting pipe; 15. discharge port; 16. cover; 17. liquid filling port; 18. base. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] A flow meter with a protective function comprises a housing 1 and a base 18, wherein the base 18 is fixedly mounted on the bottom of the housing 1, and is characterized in that: a balancing chamber 2 is fixedly connected to the top of the housing 1, a balancing piston 3 is slidably arranged inside the balancing chamber 2, a buffer chamber 5 separated by a partition 4 is arranged at the lower part of the housing 1, a flow pipe 6 is arranged on the partition 4, one end of the flow pipe 6 is communicated with the balancing chamber 2 and is located below the balancing piston 3, and the other end of the flow pipe 6 is communicated with the buffer chamber 5, a one-way valve 7 is arranged on the balancing piston 3, a telescopic hose 8 is arranged at the upper end of the one-way valve 7, one end of the telescopic hose 8 extends to the outside of the balancing chamber 2 and is connected to a liquid outlet pipe 9, a filter screen 10 is arranged on the lower side of the buffer chamber 5 and below the flow pipe 6, a metering chamber 11 is arranged inside the housing 1 and on one side of the buffer chamber 5, a metering impeller 12 is rotatably arranged inside the metering chamber 11, a liquid inlet pipe 13 is arranged on the housing 1 on the upper side of the metering chamber 11, and the lower part of the metering chamber 13 is communicated with the buffer chamber 5.
[0024] The one-way valve 7 comprises a through hole 71 , a hollow plate 72 is fixedly mounted on the bottom of the inner cavity of the through hole 71 , a spring 73 is fixedly mounted on the top of the hollow plate 72 , and a sealing block 74 is fixedly connected to the top of the spring 73 .
[0025] The upper side of the one-way valve 10 is connected to the lower end of the telescopic hose through the liquid outlet cover, the sealing block 74 is located at the bottom of the inner cavity of the liquid outlet cover 75, the lower part of the liquid outlet cover 75 is connected to the upper end of the through hole 71, and the upper part of the liquid outlet cover 75 is connected to the lower end of the telescopic hose 8.
[0026] The outer end of the liquid outlet pipe 9 is connected to a connecting pipe 14. A discharge port 15 is provided on the housing 1 at one side of the lower part of the buffer chamber 5, and a cover 16 is provided on the discharge port. A liquid replenishment port 17 is provided at the upper end of the balance chamber 2.
[0027] The liquid rushes through the liquid inlet pipe 13 of the utility model into the metering chamber 11 inside the housing 1, and the flowing liquid drives the metering impeller 12 to rotate. The flow rate of the liquid is calculated by the number of revolutions of the metering impeller 12. In addition, the filter screen 10 of the utility model can filter out solid impurities in the liquid, so that the solid impurities will not enter the flow pipe 6. When there are more filtered impurities, they can be discharged from the discharge port 15. The utility model can also alleviate the impact of high pressure on components. When the liquid enters the buffer chamber 5 through the metering chamber 11, the hydraulic pressure of the liquid can be slowed down to a certain extent due to the relatively large space of the buffer chamber. When the liquid enters the balance chamber 2, if the pressure is large, the balance piston 3 in the balance chamber 2 will automatically move upward, increasing the space below the balance piston 3, thereby automatically reducing the pressure, and preventing the excessive liquid pressure from damaging the components at the liquid outlet.
[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A flow meter with a protective function, comprising a housing (1) and a base (18), wherein the base (18) is fixedly mounted on the bottom of the housing (1), and characterized in that: The top of the housing (1) is fixedly connected to a balancing chamber (2), a balancing piston (3) is slidably arranged inside the balancing chamber (2), a buffer chamber (5) separated by a partition (4) is arranged at the bottom of the housing (1), a flow pipe (6) is arranged on the partition (4), one end of the flow pipe (6) is communicated with the balancing chamber (2) and is located below the balancing piston (3), and the other end of the flow pipe (6) is communicated with the buffer chamber (5), a one-way valve (7) is arranged on the balancing piston (3), and the upper end of the one-way valve (7) is arranged A telescopic hose (8) is provided, one end of which extends to the outside of the balancing chamber (2) and is connected to a liquid outlet pipe (9); a filter screen (10) is provided on the lower side of the buffer chamber (5) and below the flow pipe (6); a metering chamber (11) is provided inside the housing (1) and on one side of the buffer chamber (5); a metering impeller (12) is rotatably provided inside the metering chamber (11); a liquid inlet pipe (13) is provided on the housing (1) on the upper side of the metering chamber (11); and the lower part of the metering chamber (11) is communicated with the buffer chamber (5).
2. A flow meter with protection function according to claim 1, characterized in that: The one-way valve (7) comprises a through hole (71), a hollow plate (72) is fixedly mounted on the bottom of the inner cavity of the through hole (71), a spring (73) is fixedly mounted on the top of the hollow plate (72), and a sealing block (74) is fixedly connected to the top of the spring (73).
3. A flow meter with protection function according to claim 1, characterized in that: The upper side of the one-way valve (7) is connected to the lower end of the telescopic hose through a liquid outlet cover, the sealing block (74) is located at the bottom of the inner cavity of the liquid outlet cover (75), the lower part of the liquid outlet cover (75) is connected to the upper end of the through hole (71), and the upper part of the liquid outlet cover (75) is connected to the lower end of the telescopic hose (8).
4. A flow meter with a protection function according to claim 3, characterized in that: The outer end of the liquid outlet pipe (9) is connected to a connecting pipe (14).
5. The flow meter with protection function according to claim 1, characterized in that: A discharge port (15) is provided on the outer shell (1) at one side of the lower portion of the buffer chamber (5), and a cover (16) is provided on the discharge port.
6. The flow meter with protection function according to claim 1, characterized in that: The upper end of the balancing chamber (2) is provided with a liquid replenishing port (17).