Filtering device for hydraulic transmitter

Abstract

The utility model discloses a filtering device for a hydraulic transmitter, which relates to the technical field of hydraulic transmitters and comprises a connecting pipeline, a frame is movably connected in the connecting pipeline, filtering holes are fixedly mounted on the periphery of the frame, an inserting ring is fixedly mounted at the top of the frame, and the inserting ring is fixedly connected with the connecting pipeline. Two filter screens are fixedly mounted on the two sides of the frame, filter grooves are fixedly mounted in the filter screens, mounting rings are movably connected to the interiors of the two sides of the connecting pipeline, threaded rings are fixedly mounted on the outer sides of the mounting rings, and connecting rods are fixedly mounted in the mounting rings. According to the filtering device for the hydraulic transmitter, by rotating a connecting rod, a spiral ring can rotate in a connecting pipeline, so that a mounting ring can be dismounted or mounted, the filtering amount can be increased through an intercepting net in an intercepting barrel, the flow is prevented from being influenced, large impurities in water flow can be intercepted and filtered, and the filtering efficiency is improved. And damage caused by impact on the sensor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic transmitters, in particular to a filtering device for hydraulic transmitters. Background Art

[0002] A hydraulic transmitter, also known as a level gauge or level transmitter, is a pressure sensor that measures liquid level. It is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. That is, it uses a diffused silicon sensitive element or a ceramic capacitor pressure sensitive sensor to convert the static pressure into an electrical signal, which is then converted into a standard electrical signal after temperature compensation and linear correction. The level transmitter is widely used in liquid level measurement of various media in systems and industries such as petrochemicals, metallurgy, electric power, pharmaceuticals, water supply and drainage, and environmental protection.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN217247205U, which discloses a filtering device for a liquid level transmitter, including a liquid level meter, a sensor for liquid level measurement, and a cable for connecting the liquid level meter and the sensor for signal transmission, wherein a sealing ring is provided at one end of the cable close to the sensor, a filter bag is sleeved on the outside of the sensor, a mounting ring is provided at the open end of the filter bag, and the mounting ring is provided at a surface of the sealing ring away from the sensor, a fixing plate is provided on a surface of the mounting ring away from the filter bag and a surface of the filter bag away from the sealing ring, and a filtering mechanism is provided between opposite surfaces of the two fixing plates close to the filter bag. The utility model is convenient for installation and disassembly, and is convenient for regular maintenance of the filter bag and the sensor, and is convenient for achieving a double filtering effect on the medium in contact with the sensor, reducing the possibility of attachments in the medium corroding the sensor, and improving the service life of the sensor.

[0004] The filtering effect of existing hydraulic transmitters is insufficient, which can easily cause impurities in the liquid to rub against the sensor, or be adsorbed on the sensor, resulting in detection deviations. At the same time, existing filtering devices can easily cause the flow rate through the sensor area to decrease, thereby affecting the detection effect. Utility Model Content

[0005] The utility model aims to overcome the problem of poor filtering effect in the prior art and provides a filtering device for a hydraulic transmitter.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filtering device for a hydraulic transmitter, comprising:

[0008] Connecting pipe, inside which a frame is movably connected. The frame is in a ring shape. Filter holes are fixedly installed around the frame. An insertion ring is fixedly installed at the top of the frame. Two filter nets are fixedly installed on both sides of the frame. The filter nets are in a semi-circular shape. Filter grooves are fixedly installed inside the filter nets. Installation rings are movably connected inside both sides of the connecting pipe. Threaded rings are fixedly installed on the outer sides of the installation rings. Connecting rods are fixedly installed inside the installation rings. An intercepting barrel is fixedly installed on one side of the installation ring. Intercepting nets are fixedly installed around and at the bottom of the intercepting barrel.

[0009] In a preferred embodiment, two connecting flanges are fixedly installed on both sides of the connecting pipe. A hydraulic transmitter main body is fixedly installed at the top of the connecting pipe. The connecting flange is a structure for connection.

[0010] In a preferred embodiment, a sensor is fixedly installed at the bottom of the hydraulic transmitter main body.

[0011] In a preferred embodiment, a connecting ring is fixedly installed at the inner top of the connecting pipe. A fixing ring is fixedly installed at the inner bottom of the connecting pipe. The fixing ring is a structure for connection.

[0012] In a preferred embodiment, a sealing plate is fixedly installed at the bottom of the frame. A support column is fixedly installed at the bottom of the sealing plate. The support column is a structure for supporting connection.

[0013] In a preferred embodiment, three sealing rings are fixedly installed around the support column. The sealing rings are in a ring shape. The sealing rings are structures for sealing.

[0014] In a preferred embodiment, a rotating block is fixedly installed at the bottom of the support column. A marking block is fixedly installed at the bottom of the rotating block. The marking block is a structure for marking angles.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For the filtering device for the hydraulic transmitter, by rotating the connecting rod, the screw ring can be rotated inside the connecting pipe, so that the installation ring can be disassembled or installed. Through the intercepting net inside the intercepting barrel, the filtering amount can be increased, avoiding affecting the flow rate. At the same time, larger impurities in the water flow can be intercepted and filtered, avoiding the problem of damaging the sensor due to impact, and improving the practicability of the filtering device for the hydraulic transmitter.

[0017] 2. The filtering device for the hydraulic transmitter can protect the sensor through the frame. At the same time, the smaller impurities in the water flow can be filtered through the filtering holes inside the frame and the filtering grooves in the filter nets on both sides, avoiding the problem that the impurities impact or adsorb the sensor, resulting in poor detection effect. By rotating the rotating block, the frame can be rotated to achieve self-cleaning. The filter nets on both sides are to prevent the problem of too fast flow rate on both sides. At the same time, through manual rotation, the problem that when rotating automatically, the flow rate of the water flow is too fast in the rotating gap and too slow in the middle, affecting the detection effect, is avoided. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure in the present utility model;

[0019] Figure 2 Schematic diagram of the connecting pipe in the present utility model;

[0020] Figure 3 Schematic diagram of the frame in the present utility model;

[0021] Figure 4 Schematic diagram of the sealing plate in the present utility model;

[0022] Figure 5 Schematic diagram of the mounting ring in the present utility model.

[0023] 1. Connecting pipe; 11. Connecting flange; 12. Hydraulic transmitter main body; 13. Sensor; 14. Connecting ring; 15. Fixed ring; 2. Frame; 21. Filtering hole; 22. Insertion ring; 23. Filter net; 24. Filtering groove; 3. Sealing plate; 31. Support column; 32. Sealing ring; 33. Rotating block; 34. Marking block; 4. Mounting ring; 41. Threaded ring; 42. Connecting rod; 43. Intercepting barrel; 44. Intercepting net. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Combined with the attached Figures 1-5, in this embodiment, a filtering device for a hydraulic transmitter includes: a connecting pipe 1, two connecting flanges 11 are fixedly installed on both sides of the connecting pipe 1, a hydraulic transmitter main body 12 is fixedly installed on the top of the connecting pipe 1, a sensor 13 is fixedly installed at the bottom of the hydraulic transmitter main body 12, a connecting ring 14 is fixedly installed at the inner top of the connecting pipe 1, and a fixing ring 15 is fixedly installed at the inner bottom of the connecting pipe 1.

[0026] Specifically, the hydraulic transmitter main body 12 detects the flow rate inside the connecting pipe 1 through the sensor 13 at its bottom, and the filtering device for the hydraulic transmitter can be connected through the connecting flanges 11 on both sides of the connecting pipe 1.

[0027] A frame 2 is movably connected inside the connecting pipe 1. The frame 2 is in a ring shape. Filter holes 21 are fixedly installed around the frame 2. An insertion ring 22 is fixedly installed at the top of the frame 2. Two filter nets 23 are fixedly installed on both sides of the frame 2. The filter nets 23 are in a semi-circular shape, and a filter groove 24 is fixedly installed inside the filter nets 23.

[0028] Specifically, impurities in the water flow are filtered and intercepted through the filter holes 21 inside the frame 2 and the filter grooves 24 inside the filter nets 23, avoiding the adsorption or scratching of the sensor 13 by impurities and improving the practicability of the filtering device for the hydraulic transmitter.

[0029] A sealing plate 3 is fixedly installed at the bottom of the frame 2. A support column 31 is fixedly installed at the bottom of the sealing plate 3. Three sealing rings 32 are fixedly installed around the support column 31. The sealing rings 32 are in a ring shape. A rotating block 33 is fixedly installed at the bottom of the support column 31, and a marking block 34 is fixedly installed at the bottom of the rotating block 33.

[0030] Specifically, the angle of the frame 2 can be indicated through the marking block 34. By rotating the rotating block 33, the support column 31 can be driven to rotate, thereby driving the frame 2 to rotate. The gap can be sealed through the sealing rings 32.

[0031] Mounting rings 4 are movably connected inside both sides of the connecting pipe 1. A threaded ring 41 is fixedly installed on the outer side of the mounting ring 4. A connecting rod 42 is fixedly installed inside the mounting ring 4. An intercepting barrel 43 is fixedly installed on one side of the mounting ring 4. An intercepting net 44 is fixedly installed around and at the bottom of the intercepting barrel 43.

[0032] Specifically, by rotating the connecting rod 42, the threaded ring 41 can be installed on both sides inside the connecting pipe 1. The impurities can be intercepted through the intercepting net 44 inside the intercepting barrel 43, improving the practicability of the filtering device for the hydraulic transmitter.

[0033] Working principle: First, rotate the two mounting rings 4 through the rotating connecting rod 42, so that the threaded ring 41 can rotate on both sides inside the connecting pipe 1, thereby installing the two mounting rings 4. The connecting pipe 1 can be installed and connected through the two connecting flanges 11 on both sides of the connecting pipe 1. The intercepting nets 44 inside the two intercepting barrels 43 on both sides inside the connecting pipe 1 can initially intercept larger dust and particles in the water flow, avoiding the problem that the device is damaged due to the impact of larger dust and particles on the sensor 13, and improving the practicability of the filtering device for the hydraulic transmitter. Through the filtering holes 21 in the outer frame 2 of the sensor 13, the dust and impurities in the water flow contacting the sensor 13 can be secondarily filtered, filtering out smaller impurities and dust in the water flow, avoiding the problem that the detection effect is affected due to smaller impurities adsorbing or wearing the sensor 13, and improving the practicability and filtering effect of the filtering device for the hydraulic transmitter. The water flow on both sides is filtered through the filtering grooves 24 in the two filter nets 23 on both sides of the frame 2, avoiding the problem that the detection effect is affected due to the too fast flow rate of the water flow on both sides and the slow flow rate in the middle, and improving the practicability of the filtering device for the hydraulic transmitter. Through the operation of the hydraulic transmitter main body 12, the water flow inside the connecting pipe 1 can be inductively detected by the sensor 13, improving the practicability of the filtering device for the hydraulic transmitter. By manually rotating the rotating block 33, the support column 31 can be driven to rotate, so that the frame 2 rotates inside the connecting ring 14 through the insertion ring 22 at its top. Thus, the angle of the frame 2 can be determined through the marking block 34. Rotating the frame 2 by 180 degrees can perform reverse filtering, avoiding the problem that the filter net 23 and the filtering holes 21 inside the frame 2 are blocked, and improving the practicability of the filtering device for the hydraulic transmitter. The sealing ring 32 on the outer side of the support column 31 can seal the gap, avoiding the problem of blockage during long-term use. At the same time, manual adjustment can avoid the problem that the detection is affected due to the too fast flow rate of the gaps on both sides caused by automatic rotation, and improve the practicability of the filtering device for the hydraulic transmitter.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A filtering device for a hydraulic transmitter, characterized in that: The filtering device for a hydraulic transmitter comprises a connecting pipe (1), wherein a frame (2) is movably connected inside the connecting pipe (1), the frame (2) is in an annular shape, filtering holes (21) are fixedly mounted around the frame (2), an insertion ring (22) is fixedly mounted on the top of the frame (2), two filtering nets (23) are fixedly mounted on both sides of the frame (2), the filtering nets (23) are in a semicircular shape, filtering grooves (24) are fixedly mounted inside the filtering nets (23), mounting rings (4) are movably connected inside the connecting pipe (1), a threaded ring (41) is fixedly mounted on the outside of the mounting ring (4), a connecting rod (42) is fixedly mounted inside the mounting ring (4), an interception barrel (43) is fixedly mounted on one side of the mounting ring (4), and interception nets (44) are fixedly mounted around and on the bottom of the interception barrel (43).

2. A filter device for a hydraulic transmitter according to claim 1, characterized in that: Two connecting flanges (11) are fixedly mounted on both sides of the connecting pipe (1), and a hydraulic transmitter body (12) is fixedly mounted on the top of the connecting pipe (1).

3. A filter device for a hydraulic transmitter according to claim 2, characterized in that: A sensor (13) is fixedly mounted on the bottom of the hydraulic transmitter body (12).

4. A filter device for a hydraulic transmitter according to claim 3, characterized in that: A connecting ring (14) is fixedly mounted on the inner top of the connecting pipe (1), and a fixing ring (15) is fixedly mounted on the inner bottom of the connecting pipe (1).

5. The filtering device for a hydraulic transmitter according to claim 1, characterized in that: A sealing plate (3) is fixedly mounted on the bottom of the frame (2), and a supporting column (31) is fixedly mounted on the bottom of the sealing plate (3).

6. A filter device for a hydraulic transmitter according to claim 5, characterized in that: Three sealing rings (32) are fixedly mounted around the support column (31), and the sealing rings (32) are annular in shape.

7. A filter device for a hydraulic transmitter according to claim 6, characterized in that: A rotating block (33) is fixedly mounted on the bottom of the support column (31), and a marking block (34) is fixedly mounted on the bottom of the rotating block (33).

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