Double flange differential level flowmeter

Abstract

This utility model belongs to the field of flow meter technology, specifically a dual-flange differential level flow meter, including a downstream pipe and an upstream pipe. Measuring components are installed inside both the downstream and upstream pipes. A connecting sleeve one is fixedly connected to the outer wall of the downstream pipe, and a connecting sleeve two is fixedly connected to the outer wall of the upstream pipe. An orifice plate is slidably connected inside both connecting sleeves one and two. A snap-fit ​​assembly is installed on the outer walls of both connecting sleeves one and two, including a fixing block one and a fixing block two. The dual-flange differential level flow meter provided by this utility model allows for easy disassembly and installation by pulling outwards on a pull plate, causing the sliding rod and pin to slide outwards. This disengages the pin from the fixing block two and the rod, allowing the connecting sleeve one and the downstream pipe to be pulled away from the connecting sleeve two, thus separating them. This allows the orifice plate to be removed for cleaning or replacement, making the orifice plate easy to install and remove.

Description

Technical Field

[0001] This utility model belongs to the field of flow meter technology, specifically a dual-flange differential level flow meter. Background Technology

[0002] The dual-flange differential flow meter is a flow measurement instrument based on the differential pressure principle. It is mainly used to measure the flow rate of liquids, gases or steam in pipelines. The dual-flange differential flow meter generates differential pressure through a throttling device and uses dual-flange isolation technology to achieve flow measurement of high-temperature, high-pressure and corrosive media. The throttling device is usually an orifice plate structure. When the fluid flows through the orifice plate, the fluid velocity upstream of the pipeline decreases and the pressure increases, while the fluid velocity downstream of the pipeline increases and the pressure decreases.

[0003] Existing dual-flange differential flowmeters typically have an integrated pipe structure with the orifice plate fixed inside the pipe. Over time, impurities can accumulate on the surface of the orifice plate, which can affect the detection results. Therefore, regular disassembly, cleaning, or replacement is necessary. However, since the orifice plate is fixed inside the integrated pipe, it is not convenient to disassemble it. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-flange differential flow meter that facilitates the disassembly and cleaning of the internal orifice plate, thereby improving subsequent detection results.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dual-flange differential flow meter is provided, comprising a downstream pipe and an upstream pipe. Measuring components are installed inside the downstream and upstream pipes. A connecting sleeve one is fixedly connected to the outer wall of the downstream pipe, and a connecting sleeve two is fixedly connected to the outer wall of the upstream pipe. An orifice plate is slidably connected inside the connecting sleeve one and the connecting sleeve two. A snap-fit ​​assembly is installed on the outer wall of the connecting sleeve one and the connecting sleeve two. The snap-fit ​​assembly includes a fixing block one and a fixing block two. The fixing block one is fixedly connected to the outer wall of the connecting sleeve one, and the fixing block two is fixedly connected to the outer wall of the connecting sleeve two. A plug rod is fixedly connected to the outer wall of the fixing block one, and slidably connected inside the fixing block two. A sliding rod is slidably connected inside the fixing block one. A pull plate is fixedly connected to the outer wall of the sliding rod, and a pin is fixedly connected to the outer wall of the pull plate. The pin is slidably connected inside the fixing block two and the plug rod. A spring is sleeved on the outer wall of the sliding rod.

[0006] Optionally, one end of the spring is fixedly connected to the inside of the pull plate, and the other end of the spring is fixedly connected to the inside of the fixing block.

[0007] Optionally, the perforated plate has flow holes inside, a connecting block is fixedly connected to the upper surface of the perforated plate, and multiple locking holes are provided inside the perforated plate.

[0008] Optionally, the second connecting sleeve has multiple locking rods fixedly connected inside, and the locking holes are slidably connected to the outer wall of the locking rods. The first connecting sleeve has multiple slots inside, and the locking rods are slidably connected inside the slots.

[0009] Optionally, the measuring component includes a flow meter body, a differential pressure transmitter is mounted on the lower surface of the flow meter body, and two silicone oil tubes are installed inside the differential pressure transmitter.

[0010] Optionally, a pressure flange is installed on the lower surface of both silicone oil pipes, one of which is fixed inside the downstream pipe and connecting sleeve one, and the other is fixedly connected inside the upstream pipe and connecting sleeve two.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. When the orifice plate needs to be cleaned or replaced, the pull plate is pulled outward, which causes the slide rod and the pin to slide outward, so that the pin slides out of the inside of the fixing block 2 and the rod. This allows the connecting sleeve 1 and the downstream pipe to be pulled away from the connecting sleeve 2, so that the connecting sleeve 1 and the connecting sleeve 2 are separated. This allows the orifice plate to be removed for cleaning or replacement. The orifice plate is easy to disassemble and assemble.

[0013] 2. When installing the perforated plate, align the locking holes inside the perforated plate with the locking rod, so that the perforated plate slides and locks into the inside of the second connecting sleeve. Then, align the slot inside the first connecting sleeve with the locking rod, so that the first connecting sleeve slides and fits into the second connecting sleeve. The locking rod is locked into the slot, and the connecting block is locked between the second connecting sleeve and the first connecting sleeve. Then, combine the buckle assembly to limit and fix the first connecting sleeve and the second connecting sleeve, so that the perforated plate is firmly fixed inside the first connecting sleeve and the second connecting sleeve, preventing the perforated plate from shaking or shifting during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the perforated plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the clamp rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the slot structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the buckle assembly of this utility model.

[0020] In the diagram: 1. Downstream pipe; 101. Connecting sleeve one; 102. Slot; 2. Upstream pipe; 201. Connecting sleeve two; 202. Clamping rod; 3. Measuring assembly; 301. Flow meter body; 302. Differential pressure transmitter; 303. Silicone oil pipe; 304. Pressure flange; 4. Orifice plate; 401. Connecting block; 402. Flow hole; 403. Clamping hole; 5. Snap-fit ​​assembly; 501. Fixing block one; 502. Fixing block two; 503. Insert rod; 504. Slide rod; 505. Pull plate; 506. Pin; 507. Spring. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The present invention will now be described. A dual-flange differential flow meter includes a downstream pipe 1 and an upstream pipe 2. Fluid flows from the upstream pipe 2 to the downstream pipe 1. Measuring components 3 are installed inside the downstream pipe 1 and the upstream pipe 2. The measuring components 3 are used to measure the flow rate of liquid, gas, or steam within the pipes. A connecting sleeve 101 is fixedly connected to the outer wall of the downstream pipe 1, and a connecting sleeve 201 is fixedly connected to the outer wall of the upstream pipe 2. An orifice plate 4 is slidably connected inside the connecting sleeves 101 and 201, and the orifice plate 4 is limited within the connecting sleeves 101 and 201. A snap-fit ​​assembly 5 is installed on the outer wall of the connecting sleeves 101 and 201. Two sets of snap-fit ​​assemblies 5 are provided, respectively located on both sides of the outer wall of the connecting sleeves 101 and 201. The snap-fit ​​assembly 5 includes a fixing block 501 and a fixing block 502. The fixing block 501 is fixedly connected to the connecting sleeve 101. The outer wall of the first sleeve 101 is fixedly connected to the outer wall of the second sleeve 201. The outer wall of the first sleeve 101 is fixedly connected to the insertion rod 503, which is slidably connected inside the second sleeve 202. The insertion rod 503 is limited to slide inside the second sleeve 202. The inner wall of the first sleeve 101 is slidably connected to the sliding rod 504, which is limited to slide inside the first sleeve 101. The outer wall of the sliding rod 504 is fixedly connected to the pull plate 505, and the outer wall of the pull plate 505 is fixedly connected to the pin 506. The pin 506 is slidably connected inside the second sleeve 202 and the insertion rod 503, and the pin 506 limits the insertion rod 503 and the second sleeve 202. The outer wall of the sliding rod 504 is fitted with a spring 507, one end of which is fixedly connected inside the pull plate 505, and the other end of which is fixedly connected inside the first sleeve 101.

[0026] The dual-flange differential flow meter provided by this utility model facilitates the disassembly, cleaning, or replacement of the orifice plate 4 compared with the prior art, thereby improving the detection effect.

[0027] Please refer to another embodiment of this utility model as well. Figures 2 to 4 The orifice plate 4 has a flow hole 402 inside, which facilitates fluid flow. A connecting block 401 is fixedly connected to the upper surface of the orifice plate 4, which facilitates the removal of the orifice plate 4. The orifice plate 4 has multiple locking holes 403 inside. Multiple locking rods 202 are fixedly connected inside the connecting sleeve 201. The locking holes 403 are slidably connected to the outer wall of the locking rods 202, which facilitates the orifice plate 4 to be locked in place on the outer wall of the multiple locking rods 202. The connecting sleeve 101 has multiple slots 102 inside, and the locking rods 202 are slidably connected inside the slots 102.

[0028] In another embodiment of this utility model, please refer to Figure 1 and Figure 2The measuring component 3 includes a flow meter body 301, which measures the fluid flow rate. A differential pressure transmitter 302 is installed on the lower surface of the flow meter body 301. The differential pressure transmitter 302 receives the differential pressure signal transmitted by the silicone oil pipe 303, converts it into an electrical signal output, and has display and communication functions. Two silicone oil pipes 303 are installed inside the differential pressure transmitter 302. The silicone oil pipes 303 are bendable to facilitate the disassembly of the orifice plate 4. The silicone oil pipes 303 are filled with silicone oil to transmit pressure and isolate the medium. A pressure-bearing flange 304 is installed on the lower surface of both silicone oil pipes 303. The pressure-bearing flanges 304 detect the internal pressure of the upstream pipe 2 and the downstream pipe 1, respectively. One pressure-bearing flange 304 is fixed inside the downstream pipe 1 and the connecting sleeve 101, and the other pressure-bearing flange 304 is fixedly connected inside the upstream pipe 2 and the connecting sleeve 201.

[0029] Working principle: When the orifice plate 4 needs to be disassembled for cleaning or replacement, first pull the pull plate 505 outwards to both sides. After the pull plate 505 is pulled, it causes the slide rod 504 and the pin 506 to slide. The pin 506 slides out of the interior of the insert rod 503 and the fixing block 2 502. Then, while keeping the pull plate 505 pulled, move the pull plate 505 away from the connecting sleeve 2 201. This will cause the connecting sleeve 1 101 and the downstream pipe 1 to move away from the connecting sleeve 2 201 and the upstream pipe 2, thus separating the connecting sleeve 1 101 from the connecting sleeve 2 201. After separation, the perforated plate 4 is moved by the connecting block 401, causing the locking hole 403 to slide along the locking rod 202 and disengage from it, thereby disassembling the perforated plate 4. After disassembly, the perforated plate 4 is cleaned or replaced. Then, the locking hole 403 inside the cleaned or replaced perforated plate 4 is aligned with the locking rod 202, and the perforated plate 4 is moved by the connecting block 401, causing the locking hole 403 to slide on the outer wall of the locking rod 202 and the perforated plate 4 to be locked inside the connecting sleeve 201. The connecting block 401 is also locked inside the connecting sleeve 201 for limitation. Then, by pulling the pull plate 505, the slide rod 504 and the pin 506 are moved outward, causing the pin 506 to slide out of the interior of the insert rod 503. The connecting sleeve 101 is aligned with the connecting sleeve 201, and the slot 102 is aligned with the locking rod 202. The pull plate 505 moves the fixing block 101 and the connecting sleeve 101, thereby bringing the connecting sleeve 101 and the connecting sleeve 201 into contact and locking the locking rod 202 inside the slot 102. The hole plate 4 is clamped and limited between the connecting sleeve 101 and the connecting sleeve 201. Simultaneously, the insert rod 5... 03 also slides into the interior of the second fixing block 502, and then the pull plate 505 is released. The spring 507 drives the pull plate 505 to reset, so that the pin 506 and the slide rod 504 are reset. The pin 506 resets and is locked into the interior of the second fixing block 502 and the insertion rod 503, limiting and fixing the insertion rod 503 inside the second fixing block 502. This limits and fixes the second connecting sleeve 201 and the first connecting sleeve 101, and also limits and fixes the hole plate 4 inside the first connecting sleeve 101 and the second connecting sleeve 201, making it convenient to disassemble, clean or replace the hole plate 4.

[0030] 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 and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual flange differential level flowmeter comprising a downstream pipe (1) and an upstream pipe (2), characterized in that: Measuring components (3) are installed inside the downstream pipe (1) and the upstream pipe (2). A connecting sleeve one (101) is fixedly connected to the outer wall of the downstream pipe (1), and a connecting sleeve two (201) is fixedly connected to the outer wall of the upstream pipe (2). An orifice plate (4) is slidably connected inside the connecting sleeve one (101) and the connecting sleeve two (201). A snap-fit ​​assembly (5) is installed on the outer wall of the connecting sleeve one (101) and the connecting sleeve two (201). The snap-fit ​​assembly (5) includes a fixing block one (501) and a fixing block two (502). The fixing block one (501) is fixedly connected to the outer wall of the connecting sleeve one (101). The second fixing block (502) is fixedly connected to the outer wall of the second connecting sleeve (201). The outer wall of the first fixing block (501) is fixedly connected to the insert rod (503). The insert rod (503) is slidably connected to the inside of the second fixing block (502). The inside of the first fixing block (501) is slidably connected to the slide rod (504). The outer wall of the slide rod (504) is fixedly connected to the pull plate (505). The outer wall of the pull plate (505) is fixedly connected to the pin (506). The pin (506) is slidably connected to the inside of the second fixing block (502) and the insert rod (503). The outer wall of the slide rod (504) is fitted with a spring (507).

2. The dual flange differential level flow meter of claim 1, wherein: One end of the spring (507) is fixedly connected to the inside of the pull plate (505), and the other end of the spring (507) is fixedly connected to the inside of the fixing block (501).

3. The dual flange differential liquid level flow meter of claim 1, wherein: The perforated plate (4) has a flow hole (402) inside, a connecting block (401) is fixedly connected to the upper surface of the perforated plate (4), and a plurality of locking holes (403) are opened inside the perforated plate (4).

4. The dual flange differential liquid level flow meter of claim 3, wherein: The connecting sleeve 2 (201) has multiple locking rods (202) fixedly connected inside, and the locking hole (403) is slidably connected to the outer wall of the locking rod (202). The connecting sleeve 1 (101) has multiple slots (102) inside, and the locking rod (202) is slidably connected to the inside of the slot (102).

5. The dual flange differential liquid level flow meter of claim 1, wherein: The measuring component (3) includes a flow meter body (301), a differential pressure transmitter (302) is mounted on the lower surface of the flow meter body (301), and two silicone oil tubes (303) are installed inside the differential pressure transmitter (302).

6. The dual flange differential liquid level flow meter of claim 5, wherein: Both of the silicone oil pipes (303) have pressure flanges (304) installed on their lower surfaces. One of the pressure flanges (304) is fixed inside the downstream pipe (1) and the first connecting sleeve (101), and the other pressure flange (304) is fixedly connected inside the upstream pipe (2) and the second connecting sleeve (201).

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