Orifice plate flowmeter with exhaust function

Abstract

The utility model relates to the technical field of flow meters, and discloses an orifice plate flow meter with an exhaust function, which comprises an orifice plate, a first cylinder, a second cylinder, a shell, a rocker arm, a support rod, a disc, a support and a floating ball. The housing includes a first interface. In the using process, gas in the pipeline can be accumulated in the shell along with flowing of water. Along with the increase of the accumulated gas, the water in the shell is reduced, so that the buoyancy borne by the floating ball is reduced. When the buoyancy borne by the floating ball is reduced to a preset value, the disc can open the first connector under the action of gravity, and therefore the automatic exhaust function is achieved. Along with discharge of accumulated gas, water in the shell is increased, and then buoyancy borne by the floating ball is increased. When buoyancy borne by the floating ball is increased to a preset value, gravity can be overcome, the first connector is blocked by the disc, and therefore water is prevented from flowing out. Therefore, the gas can be automatically exhausted, so that the influence of the gas on the measurement result is reduced, and the accuracy of the measurement result is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flow meters, for example, to an orifice flow meter with an exhaust function. Background Art

[0002] Related technology (Announcement No.: CN219347843U) discloses an orifice flowmeter assembly comprising a connecting pipe and an orifice plate. The connecting pipe defines an axial flow channel, and a mounting portion is provided on the inner wall of the connecting pipe. The orifice plate is positioned within the flow channel and has multiple throttling holes formed therein. The orifice plate also includes a mating portion that mates with the mounting portion for removable connection.

[0003] In the process of implementing the above embodiments, it was found that there are at least the following problems in the related art:

[0004] This orifice flowmeter assembly features a detachable connection between the orifice plate and the connecting pipe. When the orifice plate reaches replacement condition, only the corresponding orifice plate needs to be replaced, thus saving costs. However, when the water in the pipeline contains gas, the gas tends to accumulate. This accumulation may enter the pressure pipe, directly affecting the measurement data, or may change the state of the fluid flowing through the throttling device, causing inaccurate measurements.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide an orifice flowmeter with an exhaust function to improve the accuracy of measurement results.

[0008] In some embodiments, the orifice flowmeter with an exhaust function includes: an orifice plate; a first cylinder, located on both sides of the orifice plate along the axial direction of the orifice plate, and the cylinders on both sides are coaxially distributed with the orifice plate; a second cylinder, connected to the outer wall of the first cylinder on either side, and communicated with the connected first cylinder; a shell, the shell including a first interface and a second interface, along the height direction of the shell, the first interface is located above the second interface, and the second interface is connected to the second cylinder; a rocker arm, rotatably installed inside the shell; a support rod, installed on the rocker arm along the height direction of the shell; a disc, installed on the top of the support rod; a support, rotatably installed on the bottom end of the support rod; a float, connected to the support; wherein, when the buoyancy of the float reaches a preset value, the disc blocks the first interface.

[0009] Optionally, it further includes: an end cover, which is detachably mounted on the side wall of the shell and is located outside the shell; wherein, the shell also includes a third interface, and the end cover is used to open or close the third interface.

[0010] Optionally, it further includes: a first bolt passing through the end cover and the third interface; and a first nut threadedly connected to the first bolt.

[0011] Optionally, it further includes: a mesh cover, installed on the first interface and located outside the shell.

[0012] Optionally, it further includes: a support arm installed on the inner wall of the shell; wherein the rocker arm is rotatably installed on the support arm.

[0013] Optionally, it further includes: a pressure-guiding tube, which is respectively installed on the side walls of the first cylinder on both sides and is respectively connected to the first cylinder on both sides.

[0014] Optionally, it further includes: a sealing ring, which is installed on the disc and located at the contact point between the disc and the first interface.

[0015] Optionally, it also includes: a first flange, respectively connected to the two ends of the first cylinder on each side; a second bolt, passing through the two first flanges at the opposite ends of the first cylinder on both sides; and a second nut, threadedly connected to the second bolt.

[0016] Optionally, it further includes: a second flange connected to the second cylinder; a third bolt passing through the second flange and the second interface; and a third nut threadedly connected to the third bolt.

[0017] The orifice flowmeter with exhaust function provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] An orifice flowmeter with an exhaust function provided in an embodiment of the present disclosure includes an orifice plate, a first cylinder, a second cylinder, a housing, a rocker arm, a support rod, a disc, a support, and a float. The first cylinder is located on either side of the orifice plate along the axial direction of the orifice plate. The two cylinders are coaxially arranged with the orifice plate, and the orifice plate is clamped between the two first cylinders. The second cylinder is connected to the outer wall of either first cylinder and communicates with the connected first cylinder to support the housing. The housing includes a first interface and a second interface. The first interface is located above the second interface along the height of the housing. The first interface is used to exhaust gas, and the second interface is used to connect to the second cylinder. The rocker arm is rotatably mounted within the housing and can rotate relative to the housing. The support rod is mounted to the rocker arm along the height of the housing and moves synchronously with the rocker arm. The disc is mounted at the top of the support rod and is used to block or open the first interface. The support rod is rotatably mounted at the bottom of the support rod and is able to rotate relative to the support rod. The float is connected to the support to absorb buoyancy. When the buoyancy of the float reaches a preset value, the disc blocks the first interface.

[0019] An orifice flowmeter with an exhaust function provided by an embodiment of the present disclosure has the following characteristics: during use, the gas in the pipeline will accumulate inside the shell as the water flows. As the amount of accumulated gas increases, the amount of water inside the shell will decrease, thereby reducing the buoyancy of the float. When the buoyancy of the float is reduced to a preset value, the disc can open the first interface under the action of gravity, thereby realizing the automatic exhaust function. As the accumulated gas is discharged, the amount of water inside the shell will increase, thereby increasing the buoyancy of the float. When the buoyancy of the float increases to a preset value, gravity can be overcome, causing the disc to block the first interface, thereby preventing water from flowing out. Therefore, exhaust can be performed automatically, thereby reducing the influence of gas on the measurement results and improving the accuracy of the measurement results.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a scale limitation. In addition,

[0022] Figure 1 1 is a schematic cross-sectional view of an orifice flowmeter with an exhaust function provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3This is another schematic cross-sectional view of an orifice flowmeter with an exhaust function provided by an embodiment of the present disclosure;

[0025] Figure 4 This is a schematic diagram of the main structure of an orifice flowmeter with an exhaust function provided in an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1: Orifice plate; 2: First cylinder; 3: Second cylinder; 4: Shell; 5: Rocker arm; 6: Support rod; 7: Disc; 8: Support; 9: Float; 10: End cover; 11: First bolt; 12: Mesh cover; 13: Support arm; 14: Pressure pipe; 15: Sealing ring; 16: First flange; 17: Second bolt; 18: Second flange; 19: Third bolt. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] Combine Figures 1 to 4 As shown, an embodiment of the present disclosure provides an orifice plate flowmeter 1 with an exhaust function, comprising an orifice plate 1, a first cylinder 2, a second cylinder 3, a housing 4, a rocker arm 5, a support rod 6, a disc 7, a support 8, and a float 9. The first cylinder 2 is located on both sides of the orifice plate 1 along the axial direction of the orifice plate 1. The two side cylinders are coaxially distributed with the orifice plate 1, and the orifice plate 1 is clamped between the two side first cylinders 2. The second cylinder 3 is connected to the outer wall of the first cylinder 2 on either side and is connected to the connected first cylinder 2 for supporting the installation of the housing 4. The housing 4 includes a first interface and a second interface. Along the height direction of the housing 4, the first interface is located above the second interface. The first interface is used to exhaust gas, and the second interface is used to connect to the second cylinder 3. The rocker arm 5 is rotatably mounted inside the housing 4 and can rotate relative to the housing 4. The support rod 6 is mounted on the rocker arm 5 along the height direction of the housing 4 and moves synchronously with the rocker arm 5. The disc 7 is mounted on the top of the support rod 6 for blocking or opening the first interface. The support 8 is rotatably mounted on the bottom end of the support rod 6 and can rotate relative to the support rod 6. The float 9 is connected to the support 8 and is used to receive buoyancy. When the buoyancy received by the float 9 reaches a preset value, the disc 7 blocks the first interface.

[0037] An orifice plate flowmeter 1 with an exhaust function is provided in an embodiment of the present disclosure. During use, the gas in the pipeline will accumulate inside the shell 4 as the water flows. As the accumulated gas increases, the water inside the shell 4 will decrease, thereby reducing the buoyancy of the float 9. When the buoyancy of the float 9 is reduced to a preset value, the disc 7 can open the first interface under the action of gravity, thereby realizing the automatic exhaust function. As the accumulated gas is discharged, the water inside the shell 4 will increase, thereby increasing the buoyancy of the float 9. When the buoyancy of the float 9 increases to a preset value, it can overcome gravity, causing the disc 7 to block the first interface, thereby preventing water from flowing out. Therefore, exhaust can be performed automatically, thereby reducing the influence of gas on the measurement results and improving the accuracy of the measurement results.

[0038] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, it also includes an end cover 10. The end cover 10 is detachably mounted on the side wall of the housing 4 and is located outside the housing 4. The housing 4 also includes a third interface, and the end cover 10 is used to open or close the third interface.

[0039] The disclosed embodiment also includes a removable end cap 10 mounted on the sidewall of the housing 4 and located outside the housing 4. The end cap 10 is used to open and close the third port of the housing 4. When the third port is open, it allows for easy access to components within the housing 4. When the third port is closed, it maintains a seal and allows for automatic exhaust.

[0040] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, the first bolt 11 and the first nut are further included. The first bolt 11 is passed through the end cover 10 and the third interface. The first nut is threadedly connected to the first bolt 11.

[0041] In the embodiment of the present disclosure, the first bolt 11 and the first nut are used as connecting members to achieve detachable installation between the end cover 10 and the third interface, which has the advantages of stable connection and easy disassembly.

[0042] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, the housing 4 further includes a mesh cover 12 . The mesh cover 12 is installed on the first interface and is located outside the housing 4 .

[0043] In the embodiment of the present disclosure, a mesh cover 12 is further included which is mounted on the first interface and located outside the housing 4. The mesh cover 12 is used to protect the housing 4 from debris entering the housing 4 through the first interface during exhaust.

[0044] Optionally, combined Figure 1and Figure 3 As shown, the housing 4 further includes a support arm 13. The support arm 13 is mounted on the inner wall of the housing 4. The rocker arm 5 is rotatably mounted on the support arm 13.

[0045] In the embodiment of the present disclosure, a support arm 13 is further included, which is mounted on the inner wall of the housing 4. The support arm 13 is used to support and mount the rotatable rocker arm 5 to adjust the position of the rocker arm 5 inside the housing 4.

[0046] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, it also includes a pressure-guiding pipe 14. The pressure-guiding pipe 14 is respectively installed on the side walls of the first cylinder 2 on both sides, and is respectively communicated with the first cylinder 2 on both sides.

[0047] In the embodiment of the present disclosure, pressure pipes 14 are further included, which are respectively installed on the side walls of the first cylinder 2 on both sides and are respectively connected to the first cylinder 2 on both sides. The pressure pipes 14 on both sides are used to connect to the differential pressure gauge to complete the water flow detection work.

[0048] Optionally, combined Figures 1 to 3 As shown, it also includes a sealing ring 15. The sealing ring 15 is installed on the disc 7 and is located at the contact point between the disc 7 and the first interface.

[0049] In the embodiment of the present disclosure, a sealing ring 15 is further included which is mounted on the disc 7. The sealing ring 15 is located at the contact point between the disc 7 and the first interface and is used to improve the sealing performance between the disc 7 and the first interface.

[0050] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, the assembly further includes a first flange 16, a second bolt 17, and a second nut. The first flange 16 is connected to each end of the first cylinder 2. The second bolt 17 is inserted through the first flanges 16 at opposite ends of the first cylinder 2. The second nut is threadedly connected to the second bolt 17.

[0051] In the disclosed embodiment, the first flange 16, second bolt 17, and second nut are used as connectors to tightly clamp the orifice plate 1 between the first circular tubes on both sides, providing advantages of stable connection and easy disassembly. Since the orifice plate 1 and the first circular tubes on both sides can be detachably mounted, the orifice plate 1 can be easily replaced later.

[0052] Optionally, combined Figure 1 、 Figure 3 and Figure 4 As shown, the second flange 18, a third bolt 19, and a third nut are also included. The second flange 18 is connected to the second cylinder 3. The third bolt 19 is inserted through the second flange 18 and the second interface. The third nut is threadedly connected to the third bolt 19.

[0053] In the embodiment of the present disclosure, the second flange 18, the third bolt 19 and the third nut are used as connectors to achieve detachable installation between the second interface and the second cylinder 3, which has the advantages of stable connection and easy disassembly.

[0054] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An orifice flowmeter with exhaust function, characterized in that: include: Orifice plate; A first cylinder is located on both sides of the orifice plate along the axial direction of the orifice plate, and the cylinders on both sides are coaxially distributed with the orifice plate; A second cylinder connected to the outer wall of the first cylinder on either side and in communication with the connected first cylinder; a housing, the housing comprising a first interface and a second interface, wherein along the height direction of the housing, the first interface is located above the second interface, and the second interface is connected to the second cylinder; a rocker arm rotatably mounted inside the housing; A support rod is mounted on the rocker arm along the height direction of the housing; a disc mounted on the top of the support rod; A support, rotatably mounted on the bottom end of the support rod; a float connected to the support; When the buoyancy of the float reaches a preset value, the disc blocks the first interface.

2. The orifice flowmeter with exhaust function according to claim 1, characterized in that: Also includes: an end cover, detachably mounted on the side wall of the shell and located outside the shell; Wherein, the shell further includes a third interface, and the end cover is used to open or close the third interface.

3. The orifice flowmeter with exhaust function according to claim 2, characterized in that: Also includes: a first bolt, passing through the end cover and the third interface; A first nut is threadedly connected to the first bolt.

4. The orifice flowmeter with exhaust function according to claim 1, characterized in that: Also includes: The mesh cover is installed on the first interface and is located outside the shell.

5. The orifice flowmeter with exhaust function according to claim 1, characterized in that: Also includes: a support arm mounted on the inner wall of the housing; Wherein, the rocker arm is rotatably mounted on the support arm.

6. The orifice flowmeter with exhaust function according to claim 1, characterized in that: Also includes: The pressure guiding tubes are respectively installed on the side walls of the first cylinders on both sides and are respectively communicated with the first cylinders on both sides.

7. The orifice flowmeter with exhaust function according to claim 1, characterized in that: Also includes: A sealing ring is installed on the disc and is located at the contact point between the disc and the first interface.

8. An orifice flowmeter with exhaust function according to any one of claims 1 to 7, characterized in that: Also includes: a first flange, connected to both ends of the first cylinder on each side; a second bolt passing through the two first flanges at opposite ends of the first cylinder on both sides; A second nut is threadedly connected to the second bolt.

9. An orifice flowmeter with exhaust function according to any one of claims 1 to 7, characterized in that: Also includes: a second flange connected to the second cylinder; a third bolt, passing through the second flange and the second interface; A third nut is threadedly connected to the third bolt.

Images