Novel inner cone flowmeter

Abstract

The utility model provides a novel inner cone flowmeter. The novel inner cone flowmeter comprises a valve pipe, a cone is fixedly installed in the valve pipe, a low-pressure pressure taking pipe is fixedly installed at the pointed cone end of the cone, the top end of the low-pressure pressure taking pipe extends out of the valve pipe, a high-pressure pressure taking pipe is fixedly installed at the top of the valve pipe, and the bottom end of the high-pressure pressure taking pipe extends into the valve pipe. A cone is arranged in the valve pipe, a pressure tapping hole is formed in the cone and communicated with a low-pressure pressure tapping pipe, a connecting pipe is arranged on one side of the valve pipe, a telescopic pipe is installed in the connecting pipe in a sliding mode, a fixing ring is fixedly installed in the connecting pipe, and one end of the telescopic pipe is fixedly sleeved with a positioning ring. The novel inner cone flowmeter has the advantages that the flow of media in a pipeline can be measured, the length can be adjusted according to the distance between the end faces of the installed pipeline, and the application range is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of inner cone flowmeters, and in particular relates to a novel inner cone flowmeter. Background Art

[0002] Cone flow meter is a new type of high-precision flow meter that can accurately measure various Reynolds numbers and meet the application conditions of various media. Its operating principle is the same as other types of differential pressure principles, all of which are based on the law of conservation of energy in sealed pipes. Cone flow meter has better performance due to its unique design structure.

[0003] In the related art, a large-caliber inner cone flowmeter is disclosed, including a measuring tube, a plurality of evenly and equidistantly arranged rear support rings are fixedly installed on one side of the measuring tube, a rear pressure-conducting tube is arranged in the middle of the rear support ring, a cone assembly is fixedly installed on the outside of the rear pressure-conducting tube, a front pressure-conducting tube is fixedly installed on the other end of the cone assembly, a movable limit cover is sleeved on the side of the front pressure-conducting tube away from the cone assembly, and the movable limit cover is connected to the inner wall of the measuring tube through a limit structure. The device uses an inner cone suspended in the center of the pipeline as a throttling element. Like basic throttling elements such as orifice plates and nozzles, the ratio of the flow area at the throttling element to the cross-sectional area of ​​the pipeline is relatively small, and it is easy to form a large differential pressure signal.

[0004] However, there are still some shortcomings in the above structure. When installing the inner cone flowmeter, the distance between the two end surfaces of the two pipes where the inner cone flowmeter needs to be installed is uncertain, which easily leads to inconvenience in installing the inner cone flowmeter.

[0005] Therefore, it is necessary to provide a new type of inner cone flowmeter to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a novel inner cone flow meter which can measure the medium flow in a pipeline and adjust the length according to the spacing of the end faces of the installed pipeline to improve the application range.

[0007] In order to solve the above technical problems, the utility model provides a new type of internal cone flowmeter, including: a valve tube, a cone is fixedly installed in the valve tube, a low-pressure pressure taking tube is fixedly installed at the pointed end of the cone, the top of the low-pressure pressure taking tube extends to the outside of the valve tube, a high-pressure pressure taking tube is fixedly installed on the top of the valve tube, and the bottom end of the high-pressure pressure taking tube extends into the valve tube, a pressure taking hole is opened on the cone, the pressure taking hole is connected with the low-pressure pressure taking tube, a connecting tube is provided on one side of the valve tube, a telescopic tube is slidably installed in the connecting tube, a fixing ring is fixedly installed in the connecting tube, and a positioning ring is fixedly sleeved at one end of the telescopic tube.

[0008] As a further solution of the utility model, a first fixed block is fixed on one side of the connecting tube, a second fixed block is fixedly installed on one side of the telescopic tube, a screw rod is fixedly installed on one side of the second fixed block, the screw rod passes through the first fixed block, a positioning nut and a locking nut are threadedly installed on the screw rod, and one side of the positioning nut and the locking nut are in contact with the first fixed block.

[0009] As a further solution of the utility model, the valve pipe and the connecting pipe are fixedly connected by bolts, and an annular sealing gasket is fixedly installed on one end of the valve pipe.

[0010] As a further solution of the utility model, a first sealing sleeve is fixedly installed on the outer surface of the positioning ring, and the first sealing sleeve contacts the inner wall of the connecting pipe. A second sealing sleeve is fixedly installed on the inner surface of the fixing ring, and the second sealing sleeve contacts the outer surface of the telescopic tube.

[0011] As a further solution of the utility model, a plurality of fixing rods are fixedly mounted on the cone, and one end of the plurality of fixing rods is fixedly connected to the inner wall of the valve tube.

[0012] As a further solution of the utility model, two of the first fixing block, the second fixing block, the screw rod, the positioning nut and the locking nut are provided and symmetrically distributed on the connecting tube and the telescopic tube, and a circular positioning block is fixedly installed at one end of the two screw rods.

[0013] Compared with the related art, the new inner cone flow meter provided by the utility model has the following advantages:

[0014] Beneficial effects:

[0015] 1. The utility model provides a valve tube, a cone, a low-pressure pressure-taking tube, a high-pressure pressure-taking tube and a pressure-taking hole, so that a pressure difference can be generated before and after the cone through the cone, and pressure is taken through the low-pressure pressure-taking tube and the high-pressure pressure-taking tube to measure the medium flow in the valve tube;

[0016] 2. The utility model provides a connecting pipe, a telescopic pipe, a fixing ring and a positioning ring, so that the telescopic pipe can be drawn out according to the spacing of the end faces of the installation pipes, and the extension length of the telescopic pipe can be adjusted, thereby improving the scope of application;

[0017] 3. The utility model provides a first fixing block, a second fixing block, a screw rod, a positioning nut and a locking nut, so that the telescopic tube can be fixed after the extension length of the telescopic tube is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1A schematic diagram of the three-dimensional structure of a novel inner cone flowmeter provided by the utility model;

[0020] Figure 2 A schematic diagram of a first partial cross-sectional structure of a novel inner cone flowmeter provided by the utility model;

[0021] Figure 3 This is a schematic diagram of the second partial cross-sectional structure of the new type of inner cone flowmeter provided by the utility model.

[0022] In the figure: 1. valve tube; 2. cone; 3. low-pressure pressure-taking tube; 4. high-pressure pressure-taking tube; 5. pressure-taking hole; 6. connecting tube; 7. telescopic tube; 8. fixing ring; 9. positioning ring; 10. first fixing block; 11. second fixing block; 12. screw rod; 13. positioning nut; 14. locking nut; 15. annular sealing gasket; 16. first sealing sleeve; 17. second sealing sleeve; 18. fixing rod; 19. circular positioning block. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the three-dimensional structure of a novel inner cone flowmeter provided by the utility model; Figure 2 A schematic diagram of a first partial cross-sectional structure of a novel inner cone flowmeter provided by the utility model; Figure 3 The second partial cross-sectional structural schematic diagram of the new type of inner cone flowmeter provided by the utility model. The new type of inner cone flowmeter comprises: a valve tube 1, a cone 2 is fixedly installed in the valve tube 1, a low-pressure pressure-taking tube 3 is fixedly installed at the pointed end of the cone 2, the top end of the low-pressure pressure-taking tube 3 extends to the outside of the valve tube 1, a high-pressure pressure-taking tube 4 is fixedly installed on the top of the valve tube 1, and the bottom end of the high-pressure pressure-taking tube 4 extends into the valve tube 1, a pressure-taking hole 5 is opened on the cone 2, and the pressure-taking hole 5 is connected with the low-pressure pressure-taking tube 3, a connecting tube 6 is provided on one side of the valve tube 1, a telescopic tube 7 is slidably installed in the connecting tube 6, a fixing ring 8 is fixedly installed in the connecting tube 6, and a positioning ring 9 is fixedly sleeved at one end of the telescopic tube 7.

[0024] like Figure 1 As shown, a first fixing block 10 is fixed to one side of the connecting tube 6, a second fixing block 11 is fixedly installed to one side of the telescopic tube 7, a screw rod 12 is fixedly installed to one side of the second fixing block 11, the screw rod 12 passes through the first fixing block 10, a positioning nut 13 and a locking nut 14 are threadedly installed on the screw rod 12, and one side of the positioning nut 13 and the locking nut 14 are in contact with the first fixing block 10;

[0025] By providing the first fixing block 10 , the second fixing block 11 , the screw rod 12 , the positioning nut 13 and the locking nut 14 , the telescopic tube 7 can be fixed after the extension length of the telescopic tube 7 is adjusted.

[0026] like Figure 1 As shown, the valve pipe 1 and the connecting pipe 6 are fixedly connected by bolts, and an annular sealing gasket 15 is fixedly installed at one end of the valve pipe 1;

[0027] By providing the annular sealing gasket 15 , the sealing performance between the valve pipe 1 and the connecting pipe 6 can be improved after the valve pipe 1 and the connecting pipe 6 are connected by bolts.

[0028] like Figure 3 As shown, a first sealing sleeve 16 is fixedly mounted on the outer surface of the positioning ring 9, and the first sealing sleeve 16 contacts the inner wall of the connecting pipe 6. A second sealing sleeve 17 is fixedly mounted on the inner surface of the fixing ring 8, and the second sealing sleeve 17 contacts the outer surface of the telescopic tube 7.

[0029] By providing the first sealing sleeve 16 and the second sealing sleeve 17 , the sealing performance of the contact parts between the fixing ring 8 , the positioning ring 9 and the connecting pipe 6 and the telescopic pipe 7 can be improved.

[0030] like Figure 2 As shown, a plurality of fixing rods 18 are fixedly mounted on the cone 2, and one end of each of the fixing rods 18 is fixedly connected to the inner wall of the valve tube 1;

[0031] By providing the fixing rod 18 , the cone 2 can be fixed, thereby improving the stability of the cone 2 .

[0032] like Figure 1 As shown, the first fixing block 10, the second fixing block 11, the screw rod 12, the positioning nut 13 and the locking nut 14 are each provided with two, and are symmetrically distributed on the connecting tube 6 and the telescopic tube 7, and one end of the two screw rods 12 is fixedly mounted with a circular positioning block 19;

[0033] By providing two of each of the first fixing block 10 , the second fixing block 11 , the screw rod 12 , the positioning nut 13 and the locking nut 14 , the telescopic tube 7 can be fixed from both sides, thereby improving the fixing effect of the telescopic tube 7 .

[0034] The working principle of the new inner cone flowmeter provided by the utility model is as follows:

[0035] When in use, connect one end of the valve tube 1 to the pipeline, then pull the telescopic tube 7 out of the connecting tube 6 according to the spacing between the two pipeline end faces, then screw the positioning nut 13 to make the positioning nut 13 contact the first fixed block 10, then screw the locking nut 14, and lock the telescopic tube 7 after contacting the first fixed block 10, and then connect the telescopic tube 7 to the pipeline. In this way, the inner cone flowmeter can be used between pipelines with different spacings. After the medium is introduced, under the action of the cone 2, a pressure difference will be generated on both sides of the cone 2, and pressure will be taken through the high-pressure pressure taking pipe 4 and the low-pressure pressure taking pipe 3 and the pressure taking hole 5 respectively.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A new type of inner cone flow meter, characterized in that: include: A valve tube, a cone is fixedly installed in the valve tube, a low-pressure pressure taking tube is fixedly installed at the pointed end of the cone, the top of the low-pressure pressure taking tube extends to the outside of the valve tube, a high-pressure pressure taking tube is fixedly installed on the top of the valve tube, and the bottom end of the high-pressure pressure taking tube extends into the valve tube, a pressure taking hole is opened on the cone, and the pressure taking hole is connected with the low-pressure pressure taking tube, a connecting tube is provided on one side of the valve tube, a telescopic tube is slidably installed in the connecting tube, a fixing ring is fixedly installed in the connecting tube, and a positioning ring is fixedly sleeved on one end of the telescopic tube.

2. The novel inner cone flowmeter according to claim 1 is characterized in that: A first fixed block is fixed on one side of the connecting tube, a second fixed block is fixedly installed on one side of the telescopic tube, a screw rod is fixedly installed on one side of the second fixed block, the screw rod passes through the first fixed block, a positioning nut and a locking nut are threadedly installed on the screw rod, and one side of the positioning nut and the locking nut are in contact with the first fixed block.

3. The novel inner cone flow meter according to claim 1 is characterized in that: The valve pipe and the connecting pipe are fixedly connected by bolts, and an annular sealing gasket is fixedly installed on one end of the valve pipe.

4. The novel inner cone flow meter according to claim 1 is characterized in that: A first sealing sleeve is fixedly mounted on the outer surface of the positioning ring, and the first sealing sleeve contacts the inner wall of the connecting pipe. A second sealing sleeve is fixedly mounted on the inner surface of the fixing ring, and the second sealing sleeve contacts the outer surface of the telescopic pipe.

5. The novel inner cone flow meter according to claim 1 is characterized in that: A plurality of fixing rods are fixedly mounted on the cone, and one end of each of the fixing rods is fixedly connected to the inner wall of the valve tube.

6. The novel inner cone flow meter according to claim 2 is characterized in that: The first fixing block, the second fixing block, the screw rod, the positioning nut and the locking nut are all provided in two pieces and are symmetrically distributed on the connecting tube and the telescopic tube. A circular positioning block is fixedly installed at one end of the two screw rods.

Images