Improved balance flowmeter

Abstract

The utility model discloses an improved balance flowmeter which comprises a measuring pipe body, a filter plate is arranged in the middle of the measuring pipe body, a plurality of sets of connecting mechanisms are arranged between the side of the filter plate and the measuring pipe body, each connecting mechanism comprises a plurality of locking screws, and the locking screws are connected to the side of the filter plate in a penetrating and penetrating mode around threads; one end of the locking inserting block is connected to the penetrating position of the locking screw and the filter plate in a sliding and penetrating mode, and the other end of the locking inserting block is connected with the inner ring wall of the measuring pipe body in a penetrating mode. According to the utility model, a plurality of groups of connecting mechanisms are arranged between the side of the filter plate and the measuring pipe body, and the connecting mechanisms extrude the locking insertion blocks in the horizontal direction through the locking screws, so that the locking insertion blocks vertically insert and fix the measuring pipe body, and the filter plate can be disassembled in such a manner, and the measuring efficiency is improved. Therefore, the operation is more flexible and convenient when the filter plate is cleaned and maintained.

Description

Technical Field

[0001] The utility model relates to the field of flow meters, in particular to an improved balanced flow meter. Background Art

[0002] The balanced flow meter can achieve high-precision, long-term and stable measurement with a relatively small permanent pressure loss in the shortest straight pipe section.

[0003] In order to maintain stable measurement, the existing balanced flowmeter will set a filter plate in the middle of the measuring tube body to filter the internal particulate impurities of the measuring fluid. The filter plate in the existing balanced flowmeter is fixed to the middle of the measuring tube body by welding, so the filter plate is not easy to disassemble for cleaning, so that the cleaning parts need to be deeply inserted into the measuring tube body for cleaning. This cleaning method is not only inconvenient, but also easy to cause damage to the measuring tube body. Utility Model Content

[0004] The purpose of the utility model is to provide an improved balanced flow meter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved balanced flowmeter, comprising a measuring tube body, a pressure-inducing tube is arranged on the top of the measuring tube body, a control group is arranged at one end of the pressure-inducing tube away from the measuring tube body, a filter plate is arranged in the middle of the measuring tube body, and multiple groups of connecting mechanisms are arranged between the sides of the filter plate and the measuring tube body, and the connecting mechanisms include:

[0006] A locking screw, wherein a plurality of the locking screws are threadedly inserted and connected to the side of the filter plate;

[0007] A locking plug block, one end of which is slidably inserted and connected to the insertion point of the locking screw and the filter plate, and the other end of the locking plug block is inserted and connected to the inner ring wall of the measuring tube body.

[0008] Preferably, the control group includes:

[0009] A stop valve, the stop valve being arranged at one end of the pressure-inducing pipe away from the measuring pipe body;

[0010] A three-valve group is arranged on the top of the stop valve, and a differential pressure transmitter is arranged on one side of the three-valve group.

[0011] Preferably, a control handle is provided at the control end of the stop valve.

[0012] Preferably, both ends of the measuring tube body are provided with flanges for connection, and a plurality of fixing bolts are arranged around the sides of the plurality of flanges.

[0013] Preferably, a plurality of filter holes are formed on one side of the filter plate.

[0014] Preferably, limiting grooves are provided on both sides of the insertion point between the locking plug and the filter plate, limiting sliders are fixedly connected to both sides of the locking plug, and a plurality of limiting sliders are respectively slidably inserted and connected in the limiting grooves.

[0015] Preferably, a downward pressure spring is arranged in the limiting slide groove and at the top end of the limiting slide block.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model provides a plurality of connection mechanisms between the side of the filter plate and the measuring tube body. The connection mechanisms form a horizontal extrusion on the locking plug by the locking screw, so that the locking plug forms a vertical plug-in fixation on the measuring tube body. In this way, the filter plate can be disassembled, which makes the operation more flexible and convenient when cleaning and maintaining the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a structural side view of the entire utility model.

[0020] Figure 3 This is a structural cross-sectional view of the connection between the filter plate and the measuring tube body of the utility model.

[0021] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. Measuring tube body; 2. Pressure pipe; 3. Stop valve; 4. Control handle; 5. Three-valve group; 6. Differential pressure transmitter; 7. Flange; 8. Fixing bolt; 9. Filter plate; 901. Filter hole; 10. Locking screw; 11. Locking plug; 1101. Limiting slide block; 12. Pressing spring. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides Figure 1-4An improved balanced flowmeter shown includes a measuring tube body 1, a pressure-inducing tube 2 is arranged on the top of the measuring tube body 1, and a control group is arranged at one end of the pressure-inducing tube 2 away from the measuring tube body 1.

[0025] Specifically, the control group includes:

[0026] The stop valve 3 is arranged at one end of the pressure-inducing pipe 2 away from the measuring pipe body 1;

[0027] It should be noted that the stop valve 3 is a tool that relies on the valve stem pressure to make the valve disc sealing surface fit tightly with the valve seat sealing surface to prevent the flow of medium. It is a forced sealing valve, and the opening and closing control of the fluid passing through the measuring pipe body 1 is performed through the stop valve 3.

[0028] Furthermore, a control handle 4 is provided at the control end of the stop valve 3, and the control handle 4 is used to control the rotation of the valve disc of the stop valve 3, thereby performing opening and closing control.

[0029] The three-valve group 5 is arranged on the top of the stop valve 3 , and a differential pressure transmitter 6 is arranged on one side of the three-valve group 5 .

[0030] It should be noted that the three-valve group 5 is composed of three valves that communicate with each other. According to the role of each valve in the system, it can be divided into: the left side is a high-pressure valve, the right side is a low-pressure valve, and the middle is a balance valve. The three-valve group 5 is used in conjunction with the differential pressure transmitter 6 to connect or disconnect the positive and negative pressure measurement chambers with the pressure-inducing point; or disconnect or connect the positive and negative pressure measurement chambers;

[0031] The differential pressure transmitter 6 is used to prevent the medium in the pipeline from directly entering the transmitter. The pressure-sensitive diaphragm and the transmitter are connected by a capillary filled with fluid. It is used to measure the liquid level, flow rate and pressure of liquid, gas or steam, and then convert it into a 4-20mA DC signal output.

[0032] Specifically, flanges 7 for connection are provided at both ends of the measuring tube body 1, and multiple fixing bolts 8 are provided around the sides of the multiple flanges 7. The entire flow meter is connected to the flow path of the fluid to be measured through the flanges 7 and the fixing bolts 8.

[0033] A filter plate 9 is provided in the middle of the measuring tube body 1, and a plurality of filter holes 901 are provided on one side of the filter plate 9. A plurality of connection mechanisms are provided between the side of the filter plate 9 and the measuring tube body 1, and the connection mechanisms include:

[0034] A locking screw 10, wherein a plurality of locking screws 10 are inserted and connected to the side of the filter plate 9 around the thread;

[0035] It should be noted that a plurality of thread grooves are provided around the side of the filter plate 9 , so that the locking screws 10 can be inserted into the plurality of thread grooves corresponding to the threads.

[0036] The locking plug block 11 has one end that is slidably inserted and connected to the insertion point between the locking screw 10 and the filter plate 9 , and the other end of the locking plug block 11 is inserted and connected to the inner ring wall of the measuring tube body 1 .

[0037] It should be noted that the inner ring wall in the middle of the measuring tube body 1 is provided with a plurality of insertion holes. In the unlocked state, one end of the locking plug 11 is inserted into the threaded groove, and in the locked state, the other end of the locking plug 11 is inserted into the insertion hole at the corresponding position.

[0038] Specifically, limiting grooves are provided on both sides of the insertion point between the locking plug 11 and the filter plate 9, and limiting sliders 1101 are fixedly connected to both sides of the locking plug 11, and multiple limiting sliders 1101 are respectively slidably inserted and connected in the limiting grooves.

[0039] Furthermore, a downward pressure spring 12 is provided in the limiting slide groove and at the top of the limiting slider 1101 .

[0040] It should be noted that, by cooperating with the limiting slide block 1101 and the limiting slide groove, the locking plug 11 always maintains an interlaced connection with the side of the filter plate 9, while preventing the connection between the locking plug 11 and the filter plate 9 from being disconnected.

[0041] In actual use, when the filter plate 9 needs to be disassembled, the multiple locking screws 10 are unscrewed counterclockwise in sequence. At this time, the squeezing of the locking screws 10 on the locking plug 11 is released, and under the pressure of the downward spring 12, the limiting slider 1101 drives the locking plug 11 to move in the direction close to the filter plate 9. At this time, the locking plug 11 will slide out of the insertion hole, so that the lock of the filter plate 9 can be released, and the filter plate 9 can be taken out of the measuring tube body 1;

[0042] When installing the filter plate 9, the locking block 11 is aligned with the corresponding socket. At this time, the locking screw 10 is tightened clockwise in the threaded groove. When the locking screw 10 continues to go deeper into the threaded groove, the locking block 11 will be squeezed. At this time, the locking block 11 moves away from the filter plate 9 and slides into the socket at the corresponding position to complete the locking of the filter plate 9.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved balanced flowmeter, comprising a measuring tube body (1), wherein a pressure-inducing tube (2) is arranged on the top of the measuring tube body (1), characterized in that: A control group is arranged at one end of the pressure-guiding tube (2) away from the measuring tube body (1), a filter plate (9) is arranged in the middle of the measuring tube body (1), and a plurality of connection mechanisms are arranged between the side of the filter plate (9) and the measuring tube body (1), the connection mechanisms comprising: a locking screw (10), a plurality of the locking screws (10) are threadedly inserted and connected to the side of the filter plate (9); and a locking plug (11), one end of the locking plug (11) is slidably inserted and connected to the insertion point between the locking screw (10) and the filter plate (9), and the other end of the locking plug (11) is inserted and connected to the inner ring wall of the measuring tube body (1).

2. An improved balanced flowmeter according to claim 1, characterized in that: The control group comprises: a stop valve (3), the stop valve (3) being arranged at one end of the pressure-inducing pipe (2) away from the measuring pipe body (1); a three-valve group (5), the three-valve group (5) being arranged at the top of the stop valve (3), and a differential pressure transmitter (6) being arranged on one side of the three-valve group (5).

3. An improved balanced flowmeter according to claim 2, characterized in that: The control end of the stop valve (3) is provided with a control handle (4).

4. An improved balanced flowmeter according to claim 1, characterized in that: Both ends of the measuring tube body (1) are provided with flanges (7) for connection, and a plurality of fixing bolts (8) are arranged around the sides of the plurality of flanges (7).

5. An improved balanced flowmeter according to claim 1, characterized in that: A plurality of filter holes (901) are provided on one side of the filter plate (9).

6. An improved balanced flowmeter according to claim 1, characterized in that: Limiting slide grooves are provided on both sides of the insertion point between the locking plug (11) and the filter plate (9), and limiting sliders (1101) are fixedly connected to both sides of the locking plug (11), and a plurality of limiting sliders (1101) are respectively slidably inserted and connected in the limiting slide grooves.

7. An improved balanced flow meter according to claim 6, characterized in that: A downward pressure spring (12) is provided in the limiting sliding groove and at the top end of the limiting sliding block (1101).

Images