Differential pressure type flowmeter convenient to clean

Abstract

The utility model relates to the technical field of differential pressure type flowmeter cleaning, and discloses a convenient-to-clean differential pressure type flowmeter which comprises a base, a cushion block and a flowmeter body, the cushion block is located at the top of the base and fixedly connected with the top of the base, and the flowmeter body is located at the top of the cushion block and attached to the top of the cushion block; the left side and the right side of the cushion block are each provided with a clamping mechanism used in cooperation with the flow meter. A cleaning mechanism used in cooperation with the flow meter is arranged on the rear side of the top of the base. A water injection mechanism matched with the cleaning mechanism is arranged on the front side of the top of the base. The problems that after the flowmeter is used to a certain degree, many residual substances are accumulated in the flowmeter, in order to guarantee the monitoring effect of the flowmeter, the flowmeter needs to be cleaned regularly so as to improve the use effect of the flowmeter, but the residual substances in the flowmeter cannot be effectively removed, so that the cleaning effect of the flowmeter is reduced, and the cleaning cost is reduced are solved. Therefore, the use by a user is inconvenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning a differential pressure flow meter, in particular to a differential pressure flow meter that is easy to clean. Background Art

[0002] The differential pressure flowmeter is a commonly used flow measurement instrument. It calculates the flow value by measuring the pressure difference generated by the fluid on a known constriction. The working principle of this flowmeter is based on the Bernoulli principle. When the fluid flows through a contracting constriction, according to the continuity equation and the Bernoulli equation, the flow velocity of the fluid at the constriction will increase, resulting in a pressure difference at the inlet and outlet of the constriction. By measuring this pressure difference, the flow rate and flow rate of the fluid can be calculated. Differential pressure flowmeters are widely used in industrial processes to measure the flow of gases and liquids. Orifice flowmeters, mask flowmeters, vortex flowmeters, etc. belong to this type. They have the advantages of simple structure, low manufacturing cost, and wide measurement range. They are commonly used flow measurement devices in industrial automation control systems.

[0003] The main function of the differential pressure flowmeter. It can accurately measure the flow value of gas or liquid in the pipeline, provide key parameters for the industrial production process, and indirectly reflect the change of pipeline resistance by monitoring the change of differential pressure signal, so as to find possible blockage or leakage problems. The differential pressure signal can be connected to the control system for automatic adjustment of the control valve to achieve automatic control of the flow. The flow of the differential pressure flowmeter can be integrated to obtain the cumulative consumption of the fluid, providing a basis for metering and charging. The change of the differential pressure signal is often closely related to the operating status of the process, and can be used as one of the important parameters for monitoring the process. In general, the differential pressure flowmeter has the advantages of low price, simple structure, and wide measurement range. It is widely used in industrial fields such as petroleum, chemical industry, metallurgy, heating and gas supply, and is one of the main instruments for fluid flow measurement. First of all, the appropriate differential pressure flowmeter model should be selected according to the physical properties of the measuring medium (gas or liquid), working pressure, temperature, flow range and other parameters. During installation, ensure that the inlet straight pipe section is long enough to avoid flow field disturbance affecting the measurement accuracy. The high and low pressure ports of the flowmeter need to be connected to the upstream and downstream pressure impulse pipelines of the measuring point respectively. The impulse pipelines must have sufficient exhaust and condensation discharge capacity. By adjusting the zero position and range adjustment buttons of the differential pressure transmitter, its output signal matches the actual flow rate. Standard orifice plates and other devices can be used for on-site calibration. The current / voltage signal output by the differential pressure transmitter can be connected to the on-site control system or data acquisition system to achieve remote monitoring and control. Regularly check whether the differential pressure impulse pipeline is blocked and whether the zero position of the transmitter is stable. For flow meters that have been used for a long time, they should also be disassembled and inspected regularly to eliminate possible leaks and dirt deposits. When using, pay attention to prevent excessive pressure shock and temperature shock, and prevent the medium from crystallizing or polymerizing to block the measuring holes. For corrosive media, corresponding protective measures need to be taken. The problem with the above technology is that after the flow meter has been used to a certain extent, a lot of residual substances will accumulate inside. In order to ensure the monitoring effect of the flow meter, it is necessary to clean it regularly to improve the use effect of the flow meter. However, the residual substances inside the flow meter cannot be effectively removed, thereby reducing the cleaning effect of the flow meter, which is inconvenient for users to use. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides an easy-to-clean differential pressure flowmeter which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: a differential pressure flow meter that is easy to clean includes a base, a cushion block and a flow meter, wherein the cushion block is located on the top of the base and fixedly connected to the top of the base, and the flow meter is located on the top of the cushion block and fits with the top of the cushion block; the left and right sides of the cushion block are both provided with clamping mechanisms used in conjunction with the flow meter; the rear side of the top of the base is provided with a cleaning mechanism used in conjunction with the flow meter; the front side of the top of the base is provided with a water injection mechanism used in conjunction with the cleaning mechanism; and the rear side of the top of the base is provided with an adjusting mechanism used in conjunction with the cleaning mechanism.

[0006] In order to improve the clamping effect of the flowmeter, preferably, the clamping mechanism includes a rotating shaft block, a support plate, a screw rod, a slider, a clamping rod and a rotating rod, the rotating shaft block is located on the surface of the pad and is movably connected to the surface of the pad through a rotating shaft, the left side of the screw rod is movably connected to the right side of the rotating shaft block through a rotating shaft, the inner cavity of the slider is connected to the surface of the screw rod by a thread, the support plate is located at the top of the base and is fixedly connected to the top of the base, the right side of the screw rod is fixedly connected to the left side of the rotating rod, the left side of the rotating rod is rotatably connected to the inner cavity of the support plate, the clamping rod is located on the left side of the slider and is fixedly connected to the left side of the slider, and the left side of the clamping rod fits with the surface of the flowmeter. By setting the clamping mechanism, the screw rod can cooperate with the slider to quickly clamp and limit the flowmeter through the clamping rod, thereby avoiding instability of the flowmeter during cleaning.

[0007] In order to improve the cleaning effect of the flowmeter, preferably, the cleaning mechanism includes a rotating motor, a connecting disk and a cleaning roller, the rotating motor is located at the rear side of the flowmeter, the connecting disk is located at the output end of the front side of the rotating motor and is fixedly connected to the output end of the rotating motor, the rear side of the cleaning roller and the rear side of the connecting disk are fixedly installed by bolts, the surface of the cleaning roller fits against the inner wall of the flowmeter, and by setting the cleaning mechanism, the rotating motor can achieve the effect of quickly cleaning the inside of the flowmeter through the mutual cooperation of the connecting disk and the cleaning roller, and the continuous friction between the cleaning roller and the inner wall of the flowmeter can also effectively remove the residual substances attached to the inner wall of the flowmeter, thereby further improving the cleaning effect of the flowmeter.

[0008] In order to improve the cleaning effect of the cleaning mechanism, preferably, the water injection mechanism includes an arc plate, a cover plate and a plunger rod, the arc plate is located at the top of the base and fixedly connected to the top of the base, the cover plate is located on the front side of the arc plate and is threadedly connected to the inner cavity of the cylindrical plate, the plunger rod is located on the rear side of the arc plate and is fixedly connected to the inner cavity of the arc plate, the surface of the plunger rod is in contact with the inner wall of the flowmeter, and by setting up the water injection mechanism, in the process of cleaning the flowmeter, the water pipe can be connected to the arc plate, and the inner wall of the flowmeter can be filled with water through the plunger rod, so as to improve the cleaning effect of the cleaning roller on the inside of the flowmeter.

[0009] In order to improve the docking effect between the cleaning mechanism and the flowmeter, preferably, the adjusting mechanism includes two electric push rods, two moving blocks and a connecting block, the two electric push rods are located on the left and right sides of the top of the base and are fixedly connected to the top of the base, the moving block is located at the output end on the rear side of the electric push rod and is fixedly connected to the output end of the electric push rod, the connecting block is located at the opposite ends of the two moving blocks and is fixedly installed on the surface of the moving block by bolts, the top of the connecting block is fixedly connected to the bottom of the rotating motor, and by setting the adjusting mechanism, the electric push rod can achieve the effect of quickly driving the cleaning mechanism to move forward and backward through the mutual cooperation of the moving block and the connecting block, thereby improving the cyclic cleaning of different positions inside the flowmeter and avoiding the problem of cleaning dead corners inside the flowmeter.

[0010] In order to improve the movement effect of the cleaning mechanism, preferably, a limiting rod is fixedly connected to the rear side of the base, and the surface of the limiting rod is in contact with the inner cavity of the connecting block. By setting the limiting rod, the limiting rod can cooperate with the connecting block to achieve the function of assisting the cleaning mechanism to move stably.

[0011] In order to improve the clamping stability of the flowmeter, preferably, the material of the clamping rod close to the flowmeter side is rubber material, and the rubber material is used to increase the friction between the clamping rod and the flowmeter. By setting the clamping rod, the clamping rod can clamp the flowmeter through mutual cooperation with the slider, and the connecting end of the clamping rod and the flowmeter is made of rubber material, which can further increase the contact friction with the flowmeter.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model connects the flow meter with the cushion block and makes the inner cavity on the front side of the flow meter fit with the surface of the plunger rod by setting a base, a cushion block, a flow meter, a clamping mechanism, a cleaning mechanism, a water injection mechanism and an adjusting mechanism, and then rotates the rotating rod, which drives the screw rod to rotate, and the screw rod moves the slider during the rotation process, and the slider drives the clamping rod to fit with the surface of the flow meter when moving, so as to achieve the effect of stably clamping the flow meter through the clamping rods on both sides. After the clamping is completed, the electric push rod is started, and the electric push rod drives the moving block and the connecting block to move through its own output end, and the connecting block drives the cleaning mechanism to connect with the rear side of the inner cavity of the flow meter during the movement.

[0013] After the cleaning mechanism is connected to the flowmeter, the rotating motor is started. The rotating motor will drive the connecting disk to rotate through its own output end, and the connecting disk will drive the cleaning roller to rotate during the rotation. The cleaning roller will continuously grind and clean the inner wall of the flowmeter while rotating, so as to remove the residual substances attached to the inner wall of the flowmeter, and the cleaning mechanism can be quickly adjusted through the mutual cooperation of the adjustment mechanism and the cleaning effect of the inner wall of the flowmeter, so as to improve the adaptability of the cleaning mechanism. In the process of cleaning the flowmeter, the cover plate can be rotated to separate the cover plate from the inner cavity of the arc plate, and the water injection pipe can be connected and fixed to the threaded connection of the inner cavity of the arc plate. After the fixing is completed, the water source can be added to the inside of the flowmeter through the mutual cooperation of the water injection pipe, the arc plate and the plunger rod, so as to improve the cleaning roller The effect of removing residual substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the adjustment of the clamping mechanism provided by the embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the movement of the cleaning mechanism provided by the embodiment of the utility model;

[0017] Figure 4 It is a cross-sectional view of a flow meter provided by an embodiment of the utility model;

[0018] Figure 5 It is an assembly and decomposition diagram of a water injection mechanism provided in an embodiment of the utility model.

[0019] In the figure: 1. base; 2. cushion block; 3. flow meter; 4. clamping mechanism; 5. cleaning mechanism; 6. water injection mechanism; 7. adjustment mechanism; 401. shaft block; 402. support plate; 403. screw rod; 404. slider; 405. clamping rod; 406. rotating rod; 501. rotating motor; 502. connecting plate; 503. cleaning roller; 601. arc plate; 602. cover plate; 603. plunger rod; 701. electric push rod; 702. moving block; 703. connecting block; 8. limit rod. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5 As shown, an easy-to-clean differential pressure flowmeter provided by an embodiment of the utility model comprises a base 1, a cushion block 2 and a flowmeter 3, wherein the cushion block 2 is located at the top of the base 1 and is fixedly connected to the top of the base 1, and the flowmeter 3 is located at the top of the cushion block 2 and fits the top of the cushion block 2; a clamping mechanism 4 used in conjunction with the flowmeter 3 is provided on both the left and right sides of the cushion block 2; a cleaning mechanism 5 used in conjunction with the flowmeter 3 is provided on the rear side of the top of the base 1; a water injection mechanism 6 used in conjunction with the cleaning mechanism 5 is provided on the front side of the top of the base 1; an adjusting mechanism 7 used in conjunction with the cleaning mechanism 5 is provided on the rear side of the top of the base 1, and the clamping mechanism 4 comprises a rotating shaft block 401, a support plate 402, a screw rod 403, slider 404, clamping rod 405 and rotating rod 406, the rotating shaft block 401 is located on the surface of the cushion block 2 and is movably connected to the surface of the cushion block 2 through a rotating shaft, the left side of the screw rod 403 is movably connected to the right side of the rotating shaft block 401 through a rotating shaft, the inner cavity of the slider 404 is connected to the surface of the screw rod 403 through a threaded connection, the support plate 402 is located on the top of the base 1 and is fixedly connected to the top of the base 1, the right side of the screw rod 403 is fixedly connected to the left side of the rotating rod 406, the left side of the rotating rod 406 is rotatably connected to the inner cavity of the support plate 402, the clamping rod 405 is located on the left side of the slider 404 and is fixedly connected to the left side of the slider 404, and the left side of the clamping rod 405 fits with the surface of the flow meter 3.

[0023] By setting the clamping mechanism 4, the screw rod 403 can cooperate with the slider 404 to quickly clamp and limit the flow meter 3 through the clamping rod 405, so as to avoid instability of the flow meter 3 during cleaning. The cleaning mechanism 5 includes a rotating motor 501, a connecting disk 502 and a cleaning roller 503. The rotating motor 501 is located at the rear side of the flow meter 3, the connecting disk 502 is located at the output end of the front side of the rotating motor 501 and is fixedly connected to the output end of the rotating motor 501, the rear side of the cleaning roller 503 is fixedly installed with the rear side of the connecting disk 502 by bolts, and the surface of the cleaning roller 503 is in contact with the inner wall of the flow meter 3. By setting the cleaning mechanism 5, the rotating motor 501 can cooperate with the connecting disk 502 and the cleaning roller 503 to quickly clean the inside of the flow meter 3, and the residual substances attached to the inner wall of the flow meter 3 can be effectively removed by continuous friction between the cleaning roller 503 and the inner wall of the flow meter 3, thereby further improving the cleaning effect of the flow meter 3.

[0024] The water injection mechanism 6 includes an arc plate 601, a cover plate 602 and a plunger rod 603. The arc plate 601 is located at the top of the base 1 and is fixedly connected to the top of the base 1. The cover plate 602 is located at the front side of the arc plate 601 and is connected to the inner cavity of the cylindrical plate by a thread. The plunger rod 603 is located at the rear side of the arc plate 601 and is fixedly connected to the inner cavity of the arc plate 601. The surface of the plunger rod 603 is in contact with the inner wall of the flow meter 3. By setting the water injection mechanism 6, in the process of cleaning the flow meter 3, the water pipe can be connected to the arc plate 601, and the inner wall of the flow meter 3 can be cleaned by the plunger rod 603. Water source is added to improve the cleaning effect of the cleaning roller 503 on the inside of the flow meter 3. The adjusting mechanism 7 includes two electric push rods 701, two moving blocks 702 and a connecting block 703. The two electric push rods 701 are located on the left and right sides of the top of the base 1 and are fixedly connected to the top of the base 1. The moving block 702 is located at the output end of the rear side of the electric push rod 701 and is fixedly connected to the output end of the electric push rod 701. The connecting block 703 is located at the opposite ends of the two moving blocks 702 and is fixedly installed with the surface of the moving block 702 by bolts. The top of the connecting block 703 is fixedly connected to the bottom of the rotating motor 501.

[0025] By setting the adjustment mechanism 7, the electric push rod 701 can quickly drive the cleaning mechanism 5 to move forward and backward through the cooperation between the moving block 702 and the connecting block 703, and thereby improve the cyclic cleaning of different positions inside the flow meter 3 to avoid the problem of cleaning dead corners inside the flow meter 3. The rear side of the base 1 is fixedly connected to the limit rod 8, and the surface of the limit rod 8 is in contact with the inner cavity of the connecting block 703. By setting the limit rod 8, the limit rod 8 can cooperate with the connecting block 703 to achieve the function of assisting the cleaning mechanism 5 to move stably. The material of the clamping rod 405 close to the side of the flow meter 3 is rubber material, and the rubber material is used to increase the friction between the clamping rod 405 and the flow meter 3. By setting the clamping rod 405, the clamping rod 405 can clamp the flow meter 3 through the cooperation with the slider 404, and the connection end of the clamping rod 405 and the flow meter 3 is made of rubber material, which can further increase the contact friction with the flow meter 3.

[0026] The working principle of the utility model is as follows: when in use, the flow meter 3 is docked with the cushion block 2 and the inner cavity on the front side of the flow meter 3 is fitted with the surface of the plunger rod 603, and then the rotating rod 406 is rotated, the rotating rod 406 will drive the screw rod 403 to rotate, and the screw rod 403 will move the slider 404 during the rotation, and the slider 404 will drive the clamping rod 405 to fit with the surface of the flow meter 3 during the movement, so as to achieve the effect of stably clamping the flow meter 3 through the clamping rods 405 on both sides. After the clamping is completed, the electric push rod 701 is started, and the electric push rod 701 will drive the moving block 702 and the connecting block 703 to move through its own output end, and the connecting block 703 will drive the cleaning mechanism 5 to dock with the rear side of the inner cavity of the flow meter 3 during the movement. After the cleaning mechanism 5 is docked with the flow meter 3, the rotating motor 501 is started, and the rotating motor 501 will The output end of the body drives the connecting disk 502 to rotate, and the connecting disk 502 drives the cleaning roller 503 to rotate during the rotation. The cleaning roller 503 will continuously grind and clean the inner wall of the flow meter 3 while rotating, so as to remove the residual substances attached to the inner wall of the flow meter 3, and the cleaning mechanism 5 can be quickly adjusted through the mutual cooperation of the adjustment mechanism 7 and the cleaning effect of the inner wall of the flow meter 3, so as to improve the adaptability of the cleaning mechanism 5. In the process of cleaning the flow meter 3, the cover plate 602 can be rotated to separate the cover plate 602 from the inner cavity of the arc plate 601, and the water injection pipe can be connected and fixed to the threaded connection of the inner cavity of the arc plate 601. After the fixing is completed, the water source can be added to the inside of the flow meter 3 through the mutual cooperation of the water injection pipe, the arc plate 601 and the plunger rod 603, so as to improve the cleaning roller 503 The effect of removing residual substances.

[0027] The specific models and specifications of the flow meter 3, rotating motor 501 and electric push rod 701 proposed in this application need to be selected and determined according to the actual specifications of the device. The specific selection calculation method, line connection method and control method all adopt the existing technology in this field, so they will not be described in detail.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] The above description is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent will not depart from the scope of the technical solution of the present invention.

Claims

1. A differential pressure flow meter that is easy to clean, comprising a base (1), a cushion block (2) and a flow meter (3), characterized in that: The cushion block (2) is located on the top of the base (1) and is fixedly connected to the top of the base (1); the flow meter (3) is located on the top of the cushion block (2) and is in contact with the top of the cushion block (2); The left and right sides of the cushion block (2) are both provided with a clamping mechanism (4) for use with the flow meter (3); A cleaning mechanism (5) for use with the flow meter (3) is provided on the rear side of the top of the base (1); A water injection mechanism (6) for use in conjunction with the cleaning mechanism (5) is provided on the front side of the top of the base (1); An adjustment mechanism (7) for use in conjunction with the cleaning mechanism (5) is provided on the rear side of the top of the base (1).

2. The easy-to-clean differential pressure flowmeter according to claim 1, characterized in that: The clamping mechanism (4) comprises a rotating shaft block (401), a support plate (402), a screw rod (403), a slider (404), a clamping rod (405) and a rotating rod (406); the rotating shaft block (401) is located on the surface of the cushion block (2) and is movably connected to the surface of the cushion block (2) via a rotating shaft; the left side of the screw rod (403) is movably connected to the right side of the rotating shaft block (401) via a rotating shaft; the inner cavity of the slider (404) is movably connected to the surface of the screw rod (403) via a screw. The support plate (402) is located at the top of the base (1) and is fixedly connected to the top of the base (1); the right side of the screw rod (403) is fixedly connected to the left side of the rotating rod (406); the left side of the rotating rod (406) is rotatably connected to the inner cavity of the support plate (402); the clamping rod (405) is located at the left side of the slider (404) and is fixedly connected to the left side of the slider (404); and the left side of the clamping rod (405) is in contact with the surface of the flow meter (3).

3. The easy-to-clean differential pressure flow meter according to claim 1, characterized in that: The cleaning mechanism (5) comprises a rotating motor (501), a connecting disk (502) and a cleaning roller (503); the rotating motor (501) is located at the rear side of the flow meter (3); the connecting disk (502) is located at the output end of the front side of the rotating motor (501) and is fixedly connected to the output end of the rotating motor (501); the rear side of the cleaning roller (503) is fixedly mounted to the rear side of the connecting disk (502) by bolts; and the surface of the cleaning roller (503) is in contact with the inner wall of the flow meter (3).

4. The easy-to-clean differential pressure flow meter according to claim 1, characterized in that: The water injection mechanism (6) comprises an arc plate (601), a cover plate (602) and a plunger rod (603); the arc plate (601) is located at the top of the base (1) and is fixedly connected to the top of the base (1); the cover plate (602) is located at the front side of the arc plate (601) and is connected to the inner cavity of the cylindrical plate via a thread; the plunger rod (603) is located at the rear side of the arc plate (601) and is fixedly connected to the inner cavity of the arc plate (601); and the surface of the plunger rod (603) is in contact with the inner wall of the flow meter (3).

5. The easy-to-clean differential pressure flow meter according to claim 3, characterized in that: The adjustment mechanism (7) comprises two electric push rods (701), two moving blocks (702) and a connecting block (703); the two electric push rods (701) are located at the left and right sides of the top of the base (1) and are fixedly connected to the top of the base (1); the moving block (702) is located at the output end of the rear side of the electric push rod (701) and is fixedly connected to the output end of the electric push rod (701); the connecting block (703) is located at the opposite ends of the two moving blocks (702) and is fixedly installed to the surface of the moving blocks (702) by bolts; and the top of the connecting block (703) is fixedly connected to the bottom of the rotating motor (501).

6. The easy-to-clean differential pressure flow meter according to claim 5, characterized in that: A limiting rod (8) is fixedly connected to the rear side of the base (1), and a surface of the limiting rod (8) is in contact with the inner cavity of the connecting block (703).

7. The easy-to-clean differential pressure flow meter according to claim 2, characterized in that: The material of the side of the clamping rod (405) close to the flow meter (3) is rubber material, and the rubber material is used to increase the friction between the clamping rod (405) and the flow meter (3).

Images