Flow meter replacement unit

Abstract

The utility model relates to the technical field of flow meters, and discloses a flow meter replacement unit which comprises a flow meter, the left side and the right side of the flow meter are both in threaded connection with inlet and outlet connectors, the input ends of the inlet and outlet connectors are both in threaded connection with liquid cavities, and membranes are movably attached to the outer surfaces of the right sides of the liquid cavities. A pressing plate is movably attached to the outer surface of the right side of the diaphragm, a sealing ring is movably attached to the right side of the pressing plate, a fluid cavity is movably attached to the right side of the sealing ring, and a quick-plug connector is arranged on the upper side of the fluid cavity. According to the flow meter replacement unit, in the whole work process, liquid in the liquid cavity only flows back and forth between the liquid cavity and the flow meter, the liquid in the liquid cavity is squeezed out through the membrane in each circulation, and the liquid and the fluid are separated through the membrane, so that the liquid and the fluid are replaced in the cavity, and the flow meter is prevented from being in contact with any fluid; the flow value of the fluid can be effectively recorded, and the problem that the flowmeter is prone to damage when working under the working condition of viscous or corrosive fluid is well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and specifically relates to a flow meter replacement unit. Background Art

[0002] In industrial sites, instruments for measuring fluid flow are collectively referred to as flow meters. They are one of the most important instruments in industrial measurement. With the development of industry, the requirements for the accuracy and range of flow measurement are getting higher and higher. To meet various uses, various types of flow meters have emerged one after another and are widely used in industries such as oil and natural gas, petrochemical, water treatment, food and beverage, pharmaceuticals, energy, metallurgy, pulp and paper, and building materials. Existing flow meters always have high material requirements due to special fluids. In viscous or corrosive fluid working conditions, the flow meter needs to have sufficient clearance for the fluid to pass through, and at the same time, accurately and efficiently record the values. Ordinary flow meters are difficult to meet the working requirements in viscous or corrosive fluid conditions. The flow meter is in direct contact with the fluid and is easily damaged by special fluids.

[0003] To solve the above problems, we urgently need a flow meter replacement unit. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a flow meter replacement unit to solve the problem that ordinary flow meters are difficult to meet the working requirements in viscous or corrosive fluid conditions, and the flow meter is in direct contact with the fluid and is easily damaged by special fluids mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flow meter replacement unit includes a flow meter. Threaded connections are provided on both the left and right sides of the flow meter with inlet and outlet connectors. Threaded connections are provided at the input ends of the inlet and outlet connectors with liquid cavities. A diaphragm is movably attached to the outer surface on the right side of the liquid cavity. A pressing plate is movably attached to the outer surface on the right side of the diaphragm. A number of fixing screws are provided inside the pressing plate. A sealing ring is movably attached to the right side of the pressing plate. A fluid cavity is movably attached to the right side of the sealing ring. A quick connector is provided on the upper side of the fluid cavity. A number of M5 screws are provided inside the fluid cavity.

[0006] Preferably, the number of fixing screws, the pressing plate, the diaphragm, and the inside of the liquid cavity are in threaded connection.

[0007] Preferably, the number of M5 screws penetrate through the fluid cavity and are in threaded connection with the inside of the liquid cavity.

[0008] Preferably, the number of fixing screws and the number of M5 screws are staggeredly arranged inside the liquid cavity.

[0009] Preferably, a common liquid is provided inside the liquid cavity.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] For this flowmeter replacement unit, inlet and outlet connectors are threadedly connected to both the left and right sides of the flowmeter. The input ends of the inlet and outlet connectors are threadedly connected to liquid cavities. A diaphragm is movably attached to the outer surface on the right side of the liquid cavity. A pressing plate is movably attached to the outer surface on the right side of the diaphragm. A number of fixing screws are provided inside the pressing plate. A sealing ring is movably attached to the right side of the pressing plate. A fluid cavity is movably attached to the right side of the sealing ring. A quick connector is provided on the upper side of the fluid cavity. A number of M5 screws are provided inside the fluid cavity. When fluid enters the left fluid cavity, it pushes the diaphragm towards the left liquid cavity, squeezing out the liquid in the left liquid cavity. The liquid flows through the flowmeter and into the right liquid cavity. The flowmeter records the value, and then the fluid enters the fluid from the right fluid cavity. The fluid in the right fluid cavity pushes the diaphragm to squeeze the liquid back into the left liquid cavity. The diaphragm in the left liquid cavity squeezes out the fluid. This repeated movement occurs. During the entire operation, the liquid in the liquid cavity only circulates back and forth between the liquid cavity and the flowmeter. Each circulation passes through the diaphragm, squeezing out the fluid in the fluid cavity. In the way of separating with the diaphragm, the liquid and the fluid are replaced inside the cavity, avoiding any contact between the flowmeter and the fluid, and effectively recording the flow value of the fluid, thus well avoiding the problem that the flowmeter is prone to damage when working in viscous or corrosive fluid conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic top view structure diagram of the utility model;

[0013] Figure 2 is an exploded structure diagram of the utility model.

[0014] In the figure: 1. Flowmeter; 2. Inlet and outlet connector; 3. Liquid cavity; 4. Diaphragm; 5. Pressing plate; 6. Diaphragm screw; 7. Sealing ring; 8. Quick connector; 9. Fluid cavity; 10. M5 screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figure 1-2, when using the present utility model, in order to solve the problem that the ordinary flowmeter 1 is difficult to meet the working conditions of viscous or corrosive fluids, and the flowmeter 1 is directly in contact with the fluid, which is easily damaged by special fluids. Threaded connections are provided with inlet and outlet connectors 2 on both the left and right sides of the flowmeter 1, and the input ends of the inlet and outlet connectors 2 are threadedly connected with liquid chambers 3. A diaphragm 4 is movably attached to the outer surface on the right side of the liquid chamber 3, a pressing plate 5 is movably attached to the outer surface on the right side of the diaphragm 4, several fixing screws are provided inside the pressing plate 5, a sealing ring 7 is movably attached to the right side of the pressing plate 5, a fluid chamber 9 is movably attached to the right side of the sealing ring 7, a quick-connect fitting 8 is provided on the upper side of the fluid chamber 9, and several M5 screws 10 are provided inside the fluid chamber 9.

[0017] Working principle: When using the replacement unit of the flowmeter 1, when fluid enters the left fluid chamber 9, it pushes the diaphragm 4 to bulge towards the left liquid chamber 3, squeezing out the liquid in the left liquid chamber 3. The liquid flows through the flowmeter 1 and into the right liquid chamber 3. The flowmeter 1 records the value, and then fluid enters through the right fluid chamber 9. The fluid in the right fluid chamber 9 pushes the diaphragm 4 to squeeze the liquid back into the left liquid chamber 3. The diaphragm 4 in the left liquid chamber 3 squeezes out the fluid. This reciprocating motion occurs. During the entire operation, the liquid in the liquid chamber 3 only flows back and forth between the liquid chamber 3 and the flowmeter 1. Each time it flows, the fluid in the fluid chamber 9 is squeezed out through the diaphragm 4. By using the diaphragm 4 to separate them, the liquid and the fluid are replaced inside the chamber, avoiding contact between the flowmeter 1 and any fluid, and effectively recording the flow value of the fluid.

[0018] Compared with the related technology, a replacement unit of a flowmeter 1 provided by the present utility model has the following beneficial effects: It achieves a good effect of avoiding the problem that the flowmeter 1 is easily damaged when working under viscous or corrosive fluid conditions.

[0019] Although the embodiments of the present utility model 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 principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flowmeter replacement unit, comprising a flowmeter (1), characterized in that: The flowmeter (1) is threadedly connected with inlet and outlet connectors (2) on both the left and right sides. The inlets of the inlet and outlet connectors (2) are threadedly connected with liquid chambers (3). A diaphragm (4) is movably attached to the outer surface on the right side of the liquid chamber (3). A pressing plate (5) is movably attached to the outer surface on the right side of the diaphragm (4). A number of fixing screws are provided inside the pressing plate (5). A sealing ring (7) is movably attached to the right side of the pressing plate (5). A fluid chamber (9) is movably attached to the right side of the sealing ring (7). A quick connector (8) is provided on the upper side of the fluid chamber (9). A number of M5 screws (10) are provided inside the fluid chamber (9).

2. The replacement unit of a flowmeter according to claim 1, wherein: The number of fixing screws, the pressing plate (5), the diaphragm (4) are threadedly connected to the inside of the liquid chamber (3).

3. The replacement unit of a flowmeter according to claim 1, wherein: The number of M5 screws (10) penetrate through the fluid chamber (9) and are threadedly connected to the inside of the liquid chamber (3).

4. A flowmeter replacement unit according to claim 2 or 3, characterized in that: The number of fixing screws and the number of M5 screws (10) are arranged alternately inside the liquid chamber (3).

5. The replacement unit of a flowmeter according to claim 1, characterized in that: Common liquid is provided inside the liquid chamber (3).

Images