Angle joint pressure tapping pore plate without pressure tapping flange

Abstract

The utility model relates to the technical field of throttling devices, and discloses an angle joint pressure tapping pore plate without a pressure tapping flange, which comprises a pore plate, a front ring chamber is arranged above the inner wall of the pore plate, a rear ring chamber is arranged below the inner wall of the pore plate, a connecting pipe is inserted into the front ring chamber, a fixing mechanism is arranged on the front ring chamber, and a pressure tapping flange is arranged on the rear ring chamber. The outer wall of the pore plate is fixedly connected with two pressure tapping pipes, the two pressure tapping pipes are communicated with the bottom of the front ring chamber and the top of the rear ring chamber respectively, and each pressure tapping pipe is connected with a pressure tapping valve. The threaded sleeve, the limiting sleeve, the inserting rod and the arc-shaped groove are used in cooperation, the inserting rod is used for limiting the connecting pipe, the limiting sleeve is used for blocking and fixing the inserting rod, and therefore the connecting pipe is connected to the front ring chamber, the overall structure is simple, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of throttling devices, in particular to an angle-connected pressure-taking orifice plate without a pressure-taking flange. Background Art

[0002] The high-range ratio differential pressure flow device composed of an angle-connected pressure orifice plate and a multi-parameter differential pressure transmitter can measure the flow of gas, steam, liquid and natural gas. It is widely used in process control and measurement in the fields of petroleum, chemical industry, metallurgy, electricity, heating, water supply, etc. It is widely used in coal, chemical industry, transportation, construction, light industry, food, medicine, agriculture and environmental protection. However, the existing pressure-taking method often requires flange pressure taking, which is inconvenient to adjust and is not conducive to the normal operation of the work site. Therefore, an angle-connected pressure orifice plate without a pressure-taking flange is proposed to solve the above-mentioned problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a corner pressure-taking orifice plate without a pressure-taking flange in view of the deficiencies in the above-mentioned prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a corner pressure-taking orifice plate without a pressure-taking flange, comprising an orifice plate, a front annular chamber is provided above the inner wall of the orifice plate, a rear annular chamber is provided below the inner wall of the orifice plate, a connecting pipe is plugged into the interior of the front annular chamber, a fixing mechanism is provided on the front annular chamber, two pressure-taking pipes are fixedly connected to the outer wall of the orifice plate, and are respectively communicated with the bottom of the front annular chamber and the top of the rear annular chamber, and each of the pressure-taking pipes is connected to a pressure-taking valve;

[0005] The fixing mechanism includes: a threaded sleeve, which is fixed on the outer wall of the front annular chamber, and the outer wall of the threaded sleeve is provided with an external thread. The outer wall of the threaded sleeve is threadedly connected to the limiting sleeve, and the inner wall of the limiting sleeve is provided with an internal thread that matches the threaded sleeve. A through hole is provided above the outer wall of the front annular chamber, and a plug rod is slidably connected to the inner wall of the through hole. The rear end of the plug rod is arranged in an arc shape and abuts against the inner wall of the limiting sleeve. The front end of the plug rod is inserted into the connecting pipe, and an arc groove is provided above the inner wall of the limiting sleeve.

[0006] Preferably, a slot is provided on the outer wall of the connecting tube, the front end of the insertion rod is arc-shaped and inserted into the slot, and there are several insertion rods, which are equidistantly arranged on the outer wall of the front annular chamber.

[0007] Preferably, a filtering mechanism is provided inside the front annular chamber, and the filtering mechanism includes: a fixed ring, a filter screen, and a pull ring. The fixed ring is provided on the inner wall of the front annular chamber, the filter screen is fixedly connected to the inner wall of the fixed ring, and the pull ring is fixedly connected to the top of the fixed ring.

[0008] Preferably, the inner wall of the front annular chamber is provided with an internal thread, the outer wall of the fixing ring is provided with an external thread, and the fixing ring is threadedly connected to the inner wall of the front annular chamber.

[0009] Preferably, a sealing ring is provided at the connection between the connecting pipe and the front annular chamber, and the sealing ring improves the sealing performance of the connection between the connecting pipe and the front annular chamber.

[0010] Preferably, there are two groups of the connecting pipes, fixing mechanisms, and sealing rings, which are relatively arranged on the front annular chamber and the rear annular chamber.

[0011] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0012] 1. The angle-connected pressure-taking hole plate without a pressure-taking flange is used in conjunction with the provided threaded sleeve, the limiting sleeve, the insertion rod, and the arc-shaped groove. The insertion rod is used to limit the connecting pipe, and the limiting sleeve is used to block and fix the insertion rod, so that the connecting pipe is connected to the front annular chamber. The overall structure is simple and easy to disassemble and assemble.

[0013] 2. The angle-connected pressure-taking orifice plate without a pressure-taking flange is used in conjunction with a fixed ring, a filter screen, and a pull ring. The fixed ring is used to fix the filter screen, and the filter screen is used to filter impurities in the liquid, thereby preventing impurities from interfering with the pressure measurement value and improving the accuracy of the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 It is a left side cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A magnified view of point A;

[0017] Figure 4 It is a structural diagram of the filtering mechanism in the present utility model.

[0018] In the figure: 1. Orifice plate; 2. Front annular chamber; 3. Rear annular chamber; 4. Connecting pipe; 5. Fixing mechanism; 501. Threaded sleeve; 502. Limiting sleeve; 503. Insert rod; 504. Arc groove; 6. Pressure taking pipe; 7. Pressure taking valve; 8. Filter mechanism; 801. Fixing ring; 802. Filter screen; 803. Pull ring; 9. Sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0022] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0023] See also Figure 1-4The top of the orifice plate 1 is provided with a plurality of pressure-taking pipes 6, and the pressure-taking pipes 6 are connected to the pressure-taking pipe 6 by the pressure-taking valve 7. The pressure-taking pipe 6 is ... The cam 503 is provided with a plurality of slots, and the slots are provided on the outer wall of the cam 503. The slots are provided on the outer wall of the cam 503, and the front end of the slots is provided with a plurality of slots. The slots are provided on the outer wall of the cam 503, and the front end of the slots is provided with a plurality of slots. The slots are provided on the outer wall of the cam 503, and the slots are provided with a plurality of slots. The slots are provided on the outer wall of the cam 503, and the slots are provided with a plurality of slots. The slots are provided on the outer wall of the cam 503, and the slots are provided with a plurality of slots. The slots are provided on the outer wall of the cam 503, and the slots are provided with a plurality of slots. The slots are provided on the inner wall of the cam 503, and the slots are provided with a plurality of slots.

[0024] Working principle: After the connecting tube 4 is inserted into the front annular chamber 2, the limiting sleeve 502 is rotated to rotate along the outer wall of the threaded sleeve 501 and move vertically. When the limiting sleeve 502 moves upward, one end of the insertion rod 503 slides along the inner wall of the arc groove 504 and slowly conflicts with the inner wall of the limiting sleeve 502, so that the insertion rod 503 slides along the through hole, so that the other end of the insertion rod 503 is inserted into the slot on the outer wall of the connecting tube 4. At this time, the limiting sleeve 502 blocks and fixes the insertion rod 503, so that the insertion rod 503 limits the connecting tube 4, so that the connecting tube 4 is connected to the front annular chamber 2. On the annular chamber 2, on the contrary, when the limiting sleeve 502 is rotated to lower it, one end of the insertion rod 503 disengages from the inner wall of the limiting sleeve 502, thereby releasing the limit on the insertion rod 503, and then pulling the connecting pipe 4 upward to make the slot slide along the outer wall of the insertion rod 503, so that the insertion rod 503 is squeezed out of the slot, thereby releasing the fixation of the connecting pipe 4, and the connecting pipe 4 can be separated from the front annular chamber 2. Similarly, this connection method also facilitates the connection between the connecting pipe 4 and the rear annular chamber 3. By opening the pressure taking valve 7 and then connecting the two pressure taking pipes 6, the mass and volume flow of the fluid medium can be measured.

[0025] See also Figure 1-4 On the basis of the above embodiment, in another embodiment of the present invention, a filtering mechanism 8 is provided inside the front annular chamber 2, and the filtering mechanism 8 includes: a fixing ring 801, a filter screen 802, and a pull ring 803. The fixing ring 801 is provided on the inner wall of the front annular chamber 2, and the inner wall of the front annular chamber 2 is provided with an internal thread. The outer wall of the fixing ring 801 is provided with an external thread. The fixing ring 801 is threadedly connected to the inner wall of the front annular chamber 2, the filter screen 802 is fixedly connected to the inner wall of the fixing ring 801, and the pull ring 803 is fixedly connected to the top of the fixing ring 801. The fixing ring 801 is used to fix the filter screen 802, and the filter screen 802 is used to filter impurities in the liquid to prevent impurities from interfering with the pressure measurement value, thereby improving the accuracy of the measurement result.

[0026] Working principle: Use the fixing ring 801 to fix the filter 802, and use the filter 802 to filter impurities in the liquid to prevent impurities from interfering with the pressure measurement value. When the pull ring 803 is rotated, the pull ring 803 drives the fixing ring 801 to rotate, and under the action of the threaded groove, the fixing ring 801 moves along the inner wall of the front ring chamber 2, so that the fixing ring 801 and the filter 802 are pulled out of the front ring chamber 2, and the filter 802 can be taken out, which is convenient for cleaning and maintenance of the filter 802.

[0027] This utility model provides a flange-less, angled pressure-taking orifice plate. There are numerous methods and approaches for implementing this technical solution. The above description is merely a preferred embodiment of the utility model. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the utility model, and such improvements and modifications should be considered within the scope of protection of the utility model. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A corner pressure-taking orifice plate without a pressure-taking flange, comprising an orifice plate (1), a front annular chamber (2) being provided above the inner wall of the orifice plate (1), and a rear annular chamber (3) being provided below the inner wall of the orifice plate (1), characterized in that: A connecting pipe (4) is inserted into the interior of the front annular chamber (2), a fixing mechanism (5) is provided on the front annular chamber (2), and two pressure-taking pipes (6) are fixedly connected to the outer wall of the orifice plate (1), and are respectively connected to the bottom of the front annular chamber (2) and the top of the rear annular chamber (3), and each of the pressure-taking pipes (6) is connected to a pressure-taking valve (7); The fixing mechanism (5) comprises: a threaded sleeve (501), the threaded sleeve (501) is fixedly sleeved on the outer wall of the front annular chamber (2), the outer wall of the threaded sleeve (501) is provided with an external thread, the outer wall of the threaded sleeve (501) is threadedly connected to the limiting sleeve (502), a through hole is provided above the outer wall of the front annular chamber (2), an insertion rod (503) is slidably connected to the inner wall of the through hole, the rear end of the insertion rod (503) is arranged in an arc shape and abuts against the inner wall of the limiting sleeve (502), the front end of the insertion rod (503) is plugged into the connecting pipe (4), and an arc groove (504) is provided above the inner wall of the limiting sleeve (502).

2. The corner pressure-taking orifice plate without a pressure-taking flange according to claim 1, characterized in that: The outer wall of the connecting pipe (4) is provided with a slot, and the front end of the inserting rod (503) is arranged in an arc shape and inserted into the slot.

3. The corner pressure-taking orifice plate without a pressure-taking flange according to claim 1, characterized in that: A filtering mechanism (8) is provided inside the front annular chamber (2), and the filtering mechanism (8) comprises: a fixed ring (801), a filter screen (802), and a pull ring (803); the fixed ring (801) is provided on the inner wall of the front annular chamber (2); the filter screen (802) is fixedly connected to the inner wall of the fixed ring (801); and the pull ring (803) is fixedly connected to the top of the fixed ring (801).

4. The corner pressure-taking orifice plate without a pressure-taking flange according to claim 3, characterized in that: The inner wall of the front annular chamber (2) is provided with an internal thread, the outer wall of the fixing ring (801) is provided with an external thread, and the fixing ring (801) is threadedly connected to the inner wall of the front annular chamber (2).

5. The corner pressure-taking orifice plate without a pressure-taking flange according to claim 1, characterized in that: A sealing ring (9) is provided at the connection between the connecting pipe (4) and the front annular chamber (2).

6. The corner pressure-taking orifice plate without a pressure-taking flange according to claim 1, characterized in that: The connecting pipe (4), the fixing mechanism (5), and the sealing ring (9) are each provided in two groups, and are relatively arranged on the front annular chamber (2) and the rear annular chamber (3).

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