Integrally-cast high-reliability glass tube rotor flow meter

Abstract

The utility model discloses an integrally-cast high-reliability glass tube rotameter which comprises a base and a glass taper tube, wherein the glass taper tube is arranged on the base through jacking devices at the two ends of the glass taper tube, and the end face of the glass taper tube is large and the end face of the glass taper tube is small. A floater capable of moving up and down is arranged in the glass taper pipe, and the base is of a door-shaped integrated structure. A plurality of limiting convex ribs are uniformly arrayed on the inner wall of the glass taper pipe in the circumferential direction, the floater comprises a convex ring end part and a conical connecting part which are arranged from top to bottom, and a plurality of limiting grooves with the same number as the limiting convex ribs are uniformly arrayed on the side wall of the convex ring end part in the circumferential direction; and a sealing gasket is arranged between the jacking device and the glass taper pipe. The device is composed of the base, the jacking device, the sealing gasket and the glass tube which are integrally cast, all materials are non-metal materials, the risk that the device is corroded in strong acid and strong alkali environments can be effectively avoided, the strength of the flowmeter is improved, and the operation reliability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of glass tube rotor flowmeters, in particular to an integrally cast high-reliability glass tube rotor flowmeter. Background Art

[0002] The main measuring element of the glass tube rotor flowmeter is a vertically installed tapered glass tube with a small bottom and a large top and a float that can move up and down inside. When the fluid passes through the tapered glass tube from bottom to top, a pressure difference is generated between the top and bottom of the float, and the float rises under the action of this differential pressure. When the rising force, the buoyancy and viscous lift of the float are equal to the gravity of the float, the float is in a balanced position. Therefore, there is a certain proportional relationship between the flow rate of the fluid flowing through the flowmeter and the rising height of the float, that is, the flow area of ​​the flowmeter. The height of the float can be used as a flow measurement.

[0003] Usually, the glass tube rotor flowmeter is composed of supporting plates, bases, tightening devices, sealing gaskets, glass tubes and other parts, and the parts are fastened by screws to prevent leakage. However, if there are too many parts and sealing surfaces, a poor seal will easily cause leakage. If too much force is used during the tightening process, it is easy to cause problems such as bending and deformation of the supporting plate and screw thread slippage. It is particularly dangerous when measuring corrosive media in industrial sites. In order to ensure the overall strength, the parts are generally made of stainless steel, which has certain corrosion resistance. However, in strong acid and alkali environments, they will also be corroded, causing damage to the flowmeter. Therefore, an integrated casting high-reliability glass tube rotor flowmeter is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an integrally cast high-reliability glass tube rotor flowmeter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An integrally cast high-reliability glass tube rotor flowmeter, an integrally cast high-reliability glass tube rotor flowmeter, comprising a base and a glass cone tube arranged on the base through tightening devices at both ends, and having a larger end surface and a smaller bottom surface; a liquid inlet communicating with the bottom of the glass cone tube is arranged on one side of the bottom of the base, and a flow regulating valve capable of controlling the flow of liquid entering the glass cone tube is arranged on the other side, a liquid outlet communicating with the top of the glass cone tube is arranged on the top of the base on the same side as the liquid inlet, a float movable up and down is arranged in the glass cone tube, and the base is a door-type integral structure; a plurality of limiting convex ribs are uniformly arranged in an array along the circumferential direction on the inner wall of the glass cone tube, the float comprises a convex ring end portion and a conical connecting portion arranged from top to bottom, and a plurality of limiting grooves having the same number as the limiting convex ribs are uniformly arranged in an array along the circumference of the convex ring end portion on the side wall of the convex ring end portion; a sealing gasket is arranged between the tightening device and the glass cone tube.

[0007] Furthermore, the side of the limiting rib away from the glass cone tube wall is arranged parallel to the central axis of the glass cone tube, and the side walls of multiple limiting ribs close to the central axis of the glass cone tube are on the side of the same cylinder.

[0008] Furthermore, the width of the limiting groove is greater than that of the limiting rib.

[0009] Furthermore, the base, the tightening device, the sealing gasket, the glass cone tube and the float are all made of non-metallic materials.

[0010] Furthermore, the base is made of plastic.

[0011] Furthermore, the number of the limiting ribs is 2 or 4.

[0012] The beneficial effects of the utility model are:

[0013] 1. This device is composed of an integrated casting base, a tightening device, a sealing gasket and a glass tube. All materials are non-metallic materials. The base, especially the plastic material, can effectively avoid the risk of corrosion in strong acid and strong alkali environments, improve the strength of the flow meter, and ensure the reliability of operation;

[0014] 2. The limiting ribs are arranged in a uniform array along the circumference of the glass cone tube and matched with the limiting grooves on the end of the convex ring on the top of the float. The side wall of the limiting ribs close to the central axis of the glass cone tube is on the side of the same cylinder. At the same time, the width of the limiting groove is greater than the limiting ribs, which ensures that the float can stably move up and down in the glass cone tube, which is convenient for reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the one-piece casting high-reliability glass tube rotor flowmeter proposed by the utility model;

[0016] Figure 2 This is a structural schematic diagram of the glass cone tube in the one-piece casting high-reliability glass tube rotor flowmeter proposed by the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the glass cone tube;

[0018] Figure 4 The utility model provides a structural schematic diagram of a float tube in an integrally cast high-reliability glass tube rotor flowmeter.

[0019] In the figure: 1, end cover; 11, first limiting protrusion; 2, outer shell; 21, flange; 211, second limiting protrusion; 3, water retaining ring; 31, first convex wall; 32, second convex wall; 33, base ring; 4, outer rotor assembly; 5, stator assembly; 6, sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 The one-piece high-reliability glass tube rotor flowmeter comprises a base 1 and a glass cone 4 which is arranged on the base 1 through a tightening device 2 at both ends and has a large end surface and a small end surface; a liquid inlet 7 which is connected to the bottom of the glass cone 4 is provided on one side of the bottom of the base 1, and a flow regulating valve 5 which can control the flow of liquid entering the glass cone 4 is provided on the other side; a flow regulating valve 5 which can control the flow of liquid entering the glass cone 4 is provided on the top of the base 1 and the same side as the liquid inlet 7. The glass cone tube 4 has a liquid outlet 6, a float 8 that can move up and down is arranged in the glass cone tube 4, and the base 1 is a door-type integrated structure; a plurality of limiting convex ribs 41 are arranged uniformly in an array along the circumferential direction on the inner wall of the glass cone tube 4, and the float 8 includes a convex ring end 81 and a conical connecting portion 82 arranged from top to bottom, and a plurality of limiting grooves 811 with the same number as the limiting convex ribs 41 are arranged uniformly in an array along the circumference of the convex ring end 81 on the side wall; a sealing gasket 3 is arranged between the tightening device 2 and the glass cone tube 4.

[0022] The side of the limiting rib 41 away from the wall of the glass cone tube 4 is arranged parallel to the central axis of the glass cone tube 4, and the side walls of multiple limiting ribs 41 close to the central axis of the glass cone tube 4 are on the side of the same cylinder.

[0023] The width of the limiting groove 811 is greater than the limiting rib 41 .

[0024] The limiting convex ribs are arranged in a uniform array along the circumference of the glass cone tube and cooperate with the limiting grooves on the end of the convex ring on the top of the float. The side wall of the limiting ribs on the side close to the central axis of the glass cone tube is on the side of the same cylinder. At the same time, the width of the limiting groove is greater than the limiting ribs, which ensures that the float can stably move up and down in the glass cone tube, making it easy to read.

[0025] The base 1, the tightening device 2, the sealing gasket 3, the glass cone 4 and the float 8 are all made of non-metallic materials.

[0026] The base 1 is made of plastic. During use, the device is composed of an integrally cast base, a tightening device, a sealing gasket and a glass tube, all of which are non-metallic materials. The base, especially the plastic material, can effectively avoid the risk of corrosion in a strong acid or alkali environment, improve the strength of the flow meter, and ensure the reliability of operation;

[0027] The number of the limiting ribs 41 is 2 or 4.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrally cast high-reliability glass tube rotor flowmeter, comprising a base (1) and a glass conical tube (4) arranged on the base (1) through a tightening device (2) at both ends, and having a larger end surface and a smaller end surface; a liquid inlet (7) communicating with the bottom of the glass conical tube (4) is provided on one side of the bottom of the base (1), and a flow regulating valve (5) capable of controlling the flow of liquid entering the glass conical tube (4) is provided on the other side; a liquid outlet (6) communicating with the top of the glass conical tube (4) is provided on the same side as the liquid inlet (7) at the top of the base (1); a float (8) capable of moving up and down is provided in the glass conical tube (4), characterized in that: The base (1) is a door-shaped integrated structure; a plurality of position-limiting convex ribs (41) are arranged uniformly in an array along the circumferential direction on the inner wall of the glass cone tube (4); the float (8) comprises a convex ring end (81) and a conical connecting portion (82) arranged from top to bottom; a plurality of position-limiting grooves (811) are arranged uniformly in an array along the circumference of the convex ring end (81) on the side wall of the convex ring end (81), the same number as the position-limiting convex ribs (41); and a sealing gasket (3) is arranged between the tightening device (2) and the glass cone tube (4).

2. The one-piece casting high-reliability glass tube rotor flowmeter according to claim 1 is characterized in that: The side of the limiting convex rib (41) away from the tube wall of the glass cone tube (4) is arranged parallel to the central axis direction of the glass cone tube (4), and the side walls of a plurality of the limiting convex ribs (41) close to the central axis of the glass cone tube (4) are on the side of the same cylinder.

3. The one-piece cast high-reliability glass tube rotor flowmeter according to claim 2, characterized in that: The width of the limiting groove (811) is greater than the limiting rib (41).

4. The one-piece cast high-reliability glass tube rotor flowmeter according to claim 3, characterized in that: The base (1), the tightening device (2), the sealing gasket (3), the glass cone (4) and the float (8) are all made of non-metallic materials.

5. The one-piece cast high-reliability glass tube rotor flowmeter according to claim 4, characterized in that: The base (1) is made of plastic.

6. The one-piece cast high-reliability glass tube rotor flowmeter according to claim 3, characterized in that: The number of the limiting convex ribs (41) is 2 or 4.

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