Integrated differential pressure type orifice plate flowmeter

Abstract

The utility model relates to the technical field of flowmeter equipment, and provides an integrated differential pressure type orifice plate flowmeter which comprises a pipeline, a detection mechanism and a filtering mechanism. By arranging the connecting box and the hasp, the detachable connecting box facilitates maintenance and replacement of the detector, the connecting box can be rapidly detached by opening the hasp, maintenance time is saved, by arranging the mounting base and the frame, the mounting base slides in the frame, different mounting frames and different filter screens are switched, it is avoided that the flowmeter is detached when the filter screens are replaced, and maintenance is convenient. By arranging an air pump, a connecting pipe, a pipe frame and a high-pressure spray head, the air pump works regularly to spray air out of the high-pressure spray head through the connecting pipe and the pipe frame, dust adsorbed by the display part of the detector is cleaned, no other waste is generated, and the detector is more convenient and environmentally friendly; according to the utility model, the mounting rack and the filter screen are arranged, and the filter screen is mounted through the mounting rack, so that solid particles or impurities in flowing fluid are filtered, and the pore diameter of the pore plate is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meter equipment, in particular to an integrated differential pressure orifice flow meter. Background Art

[0002] The integrated differential pressure orifice flowmeter is an instrument used to measure the flow rate of fluid in a pipeline. It uses the differential pressure principle to measure flow. It is mainly composed of an orifice plate, a pressure pipe, a differential pressure transmitter and a pressure tap on the downstream side. When the fluid flows through the orifice plate, due to the presence of the orifice plate, the flow rate of the fluid will increase, while the pressure will decrease. In this way, a pressure difference will be generated upstream and downstream of the orifice plate. By measuring this pressure difference, the flow rate of the fluid can be calculated. The integrated differential pressure orifice flowmeter has the advantages of simple structure, easy installation, good stability, accurate measurement, etc., and is widely used in flow measurement in various industrial fields.

[0003] According to the search of China Utility Model Publication No.: CN216206669U, an integrated differential pressure orifice flowmeter is disclosed. The utility model is an integrated differential pressure orifice flowmeter. Because the utility model adds an instrument protection cover, a micro fixed shaft, a micro bearing, an annular magnet sheet, a movable pressure plate, an inner cavity of the movable cover, a micro telescopic spring, an movable pressure plate and multiple cleaning stickers, the instrument surface can be protected and dustproof, and the annular magnet sheet and the annular metal sheet are set, so that the instrument protection cover will not separate from the instrument by itself, which is convenient for the staff to check and use. Press the movable pressure plate to the left, and multiple micro telescopic springs will be pressed. The spring is compressed and transmits the compression force to the left, causing the movable pressure plate to move to the left, and the leftmost cleaning sticker will stick to the glass piece on the right end face of the instrument. The leftmost cleaning sticker will stick to the glass piece and remove the dust on the surface of the glass piece. Then release the movable pressure plate, and the leftmost cleaning sticker will separate from the glass piece. Then the staff can move the instrument protective cover to separate the instrument protective cover from the instrument, and then observe the instrument value. After the observation, peel off the leftmost cleaning sticker, and then move the instrument protective cover to make the annular magnet sheet and the annular metal sheet on the edge of the right end face of the instrument attract each other.

[0004] However, there are some issues that need to be considered when implementing the above technical solutions: First, the flow meter is complicated to disassemble during maintenance, resulting in a long maintenance time, affecting its use, and the cleaning process is complicated and generates waste; second, the flow meter does not have a filtering structure, and solid particles or impurities in the fluid will clog the aperture of the orifice plate, resulting in inaccurate measurement or even equipment damage. Utility Model Content

[0005] The purpose of the present utility model is to provide an integrated differential pressure orifice flowmeter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated differential pressure orifice flowmeter, comprising a pipeline, a detection mechanism and a filtering mechanism, a detection mechanism is arranged above the pipeline, a pressure guiding pipe is arranged above the pipeline, a connecting box is arranged above the pressure guiding pipe, a detector is arranged above the connecting box, a buckle is arranged on the outside of the connecting box, an air pump is arranged on one side of the detector, a filtering mechanism is arranged on the left side of the pipeline, a frame is arranged on the left side of the pipeline, a mounting seat is arranged inside the frame, and a mounting frame is arranged on the outside of the mounting seat.

[0007] Preferably, a sealing groove is provided on the inner side of the connection box, a sealing strip is provided inside the sealing groove, and the sealing strip is tightly fitted to the sealing groove.

[0008] Preferably, the connection box can be split into two parts, the upper and lower parts of the connection box are fixedly connected to two ends of the buckle, and the buckle is provided in two groups.

[0009] Preferably, the front of the air pump is connected to one end of a connecting pipe, the other end of the connecting pipe is connected to a pipe rack, the bottom plate of the pipe rack is provided with a high-pressure nozzle, and the high-pressure nozzle is provided in multiple groups, and the high-pressure nozzle corresponds to the position of the detector.

[0010] Preferably, the frame is threadedly connected to the pipe, the mounting seat is tightly fitted to the frame, and the mounting seat is slidably connected to the frame.

[0011] Preferably, the mounting frame and the mounting seat are snap-connected, two groups of the mounting frames are provided, and a filter screen is provided inside the mounting frame.

[0012] Preferably, the outer side of the frame is rotatably connected to limit blocks, and four groups of limit blocks are provided, and the limit blocks correspond to the positions of the mounting seats.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a connection box and a buckle, and the connection box can be disassembled to facilitate the maintenance and replacement of the detector. The connection box can be quickly disassembled by opening the buckle, which saves maintenance time. By providing a mounting seat and a frame, the mounting seat slides in the frame, and different mounting frames and filter screens are switched, so that the flow meter can be avoided from being disassembled when replacing the filter screen, thereby improving work efficiency. By providing an air pump, a connecting pipe, a pipe rack and a high-pressure nozzle, the air pump works regularly to spray gas from the high-pressure nozzle through the connecting pipe and the pipe rack, so as to clean the dust adsorbed on the display part of the detector, and no other waste is generated, which is more convenient and environmentally friendly.

[0015] The utility model provides a mounting frame and a filter screen, and the filter screen is installed through the mounting frame to filter solid particles or impurities in the fluid flowing through, thereby preventing the aperture of the orifice plate from being blocked, resulting in inaccurate measurement or even equipment damage. A limit block is provided and the limit block is rotated inwardly to clamp the mounting seat, thereby preventing the filter screen from falling due to movement during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the detection mechanism structure of the utility model.

[0018] Figure 3 For the utility model Figure 2 Enlarged view of point A.

[0019] Figure 4 It is a schematic diagram of the explosion structure of the filtering mechanism of the utility model.

[0020] In the figure: 1. pipeline; 2. detection mechanism; 201. pressure pipe; 202. connection box; 203. detector; 204. sealing groove; 205. sealing strip; 206. buckle; 207. air pump; 208. connecting pipe; 209. pipe rack; 210. high-pressure nozzle; 3. filtering mechanism; 301. frame; 302. mounting seat; 303. mounting frame; 304. filter screen; 305. limit block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] 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.

[0025] See also Figure 1-4 The utility model provides an embodiment: an integrated differential pressure orifice flowmeter, including a pipeline 1, a detection mechanism 2 and a filtering mechanism 3, the detection mechanism 2 is arranged above the pipeline 1, a pressure pipe 201 is arranged above the pipeline 1, a connecting box 202 is arranged above the pressure pipe 201, a detector 203 is arranged above the connecting box 202, a buckle 206 is arranged on the outside of the connecting box 202, an air pump 207 is arranged on one side of the detector 203, a filtering mechanism 3 is arranged on the left side of the pipeline 1, a frame 301 is arranged on the left side of the pipeline 1, a mounting seat 302 is arranged inside the frame 301, and a mounting frame 303 is arranged on the outside of the mounting seat 302.

[0026] Specifically, a sealing groove 204 is provided on the inner side of the connection box 202, and a sealing strip 205 is provided inside the sealing groove 204. The sealing strip 205 fits tightly with the sealing groove 204, and the sealing strip 205 cooperates with the sealing groove 204 to prevent the connection box 202 from leaking and causing inaccurate detection data.

[0027] Specifically, the connection box 202 can be disassembled into two parts. The upper and lower parts of the connection box 202 are fixedly connected to the two ends of the buckle 206. The buckle 206 is provided in two groups. The detachable connection box 202 is convenient for repairing and replacing the detector 203. The connection box 202 can be quickly disassembled by opening the buckle 206, saving maintenance time.

[0028] Specifically, the front of the air pump 207 is connected to one end of the connecting pipe 208, and the other end of the connecting pipe 208 is connected to the pipe rack 209. The bottom plate of the pipe rack 209 is provided with a high-pressure nozzle 210. There are multiple groups of high-pressure nozzles 210, and the positions of the high-pressure nozzles 210 and the detector 203 correspond. The air pump 207 works regularly to spray gas from the high-pressure nozzles 210 through the connecting pipe 208 and the pipe rack 209 to clean the dust adsorbed on the display part of the detector 203 without generating other waste, which is more convenient and environmentally friendly.

[0029] Specifically, the frame 301 is threadedly connected to the pipe 1, the mounting seat 302 is tightly fitted to the frame 301, the mounting seat 302 and the frame 301 are slidingly connected, the mounting seat 302 slides in the frame 301, and different mounting frames 303 and filter screens 304 are switched to avoid disassembling the flow meter when replacing the filter screen 304, thereby improving work efficiency.

[0030] Specifically, the mounting frame 303 and the mounting seat 302 are snap-connected, and two groups of mounting frames 303 are provided. A filter screen 304 is provided inside the mounting frame 303. The filter screen 304 is installed through the mounting frame 303 to filter solid particles or impurities in the fluid flowing through to prevent clogging of the aperture of the orifice plate, resulting in inaccurate measurement or even damage to the equipment.

[0031] Specifically, the outer side of the frame 301 is rotatably connected to the limit blocks 305, and four groups of the limit blocks 305 are arranged. The limit blocks 305 correspond to the positions of the mounting seat 302. By rotating the limit blocks 305 inward, the mounting seat 302 can be clamped to prevent the filter 304 from falling off due to movement during use.

[0032] Working principle: First, install the filter 304 through the mounting frame 303 to filter solid particles or impurities in the fluid flowing through, so as to prevent the aperture of the orifice plate from being blocked, resulting in inaccurate measurement or even equipment damage. When the filter 304 is blocked, the mounting seat 302 slides in the frame 301, and different mounting frames 303 and filter 304 are switched to avoid disassembling the flow meter when replacing the filter 304, thereby improving work efficiency. Then, the limit block 305 is rotated inward to clamp the mounting seat 302 to prevent the filter 304 from falling due to movement during use. The air pump 207 works to spray gas from the high-pressure nozzle 210 through the connecting pipe 208 and the pipe rack 209, and the dust adsorbed on the display part of the detector 203 is cleaned for easy observation. When the flow meter fails, the connection box 202 can be quickly disassembled by opening the buckle 206. The disassembled connection box 202 is convenient for repairing and replacing the detector 203, saving maintenance time.

[0033] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. An integrated differential pressure orifice flowmeter, comprising a pipeline (1), a detection mechanism (2) and a filtering mechanism (3), characterized in that: A detection mechanism (2) is arranged above the pipeline (1), a pressure-conducting pipe (201) is arranged above the pipeline (1), a connection box (202) is arranged above the pressure-conducting pipe (201), a detector (203) is arranged above the connection box (202), a buckle (206) is arranged on the outside of the connection box (202), an air pump (207) is arranged on one side of the detector (203), a filtering mechanism (3) is arranged on the left side of the pipeline (1), a frame (301) is arranged on the left side of the pipeline (1), a mounting seat (302) is arranged inside the frame (301), and a mounting frame (303) is arranged on the outside of the mounting seat (302).

2. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: A sealing groove (204) is provided on the inner side of the connection box (202), a sealing strip (205) is provided inside the sealing groove (204), and the sealing strip (205) is tightly fitted to the sealing groove (204).

3. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: The connection box (202) can be split into two parts, and the upper and lower parts of the connection box (202) are fixedly connected to the two ends of the buckle (206), and the buckle (206) is provided in two groups.

4. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: The front of the air pump (207) is connected to one end of a connecting pipe (208), the other end of the connecting pipe (208) is connected to a pipe rack (209), a bottom plate of the pipe rack (209) is provided with a high-pressure nozzle (210), a plurality of groups of the high-pressure nozzles (210) are provided, and the positions of the high-pressure nozzles (210) and the detector (203) correspond.

5. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: The frame (301) is threadedly connected to the pipe (1), the mounting seat (302) is tightly fitted to the frame (301), and the mounting seat (302) is slidably connected to the frame (301).

6. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: The mounting frame (303) is snap-connected with the mounting seat (302), two groups of the mounting frames (303) are provided, and a filter screen (304) is provided inside the mounting frame (303).

7. The integrated differential pressure orifice flowmeter according to claim 1, characterized in that: The outer side of the frame (301) is rotatably connected to a limit block (305), and four groups of the limit blocks (305) are provided. The positions of the limit blocks (305) and the mounting seat (302) correspond.

Images