CN114068244A - Rotary float bowl counterweight liquid level switch - Google Patents
Rotary float bowl counterweight liquid level switch Download PDFInfo
- Publication number
- CN114068244A CN114068244A CN202010751578.6A CN202010751578A CN114068244A CN 114068244 A CN114068244 A CN 114068244A CN 202010751578 A CN202010751578 A CN 202010751578A CN 114068244 A CN114068244 A CN 114068244A
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- China
- Prior art keywords
- positioning
- liquid level
- guide rod
- pole
- positioning guide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
Abstract
The invention relates to the technical field of mechanical electronics, and provides a rotary type buoy and counterweight liquid level switch. The device comprises a positioning guide rod, an adjusting device and a rod buoy with a balance weight, wherein a reed switch is arranged in the positioning guide rod; the pole flotation pontoon of taking counter weight includes magnet steel, weight lever, pole flotation pontoon, and the weight lever can use the puller screw as the pivot free rotation, and when the magnet steel was rotated to the below position, magnet steel and tongue tube coincidence. The device has compact and reliable structure and flexible and convenient installation, is suitable for high-temperature and high-pressure environment, and can be matched with PLC automatic control.
Description
Technical Field
The invention relates to the technical field of mechanical electronics, in particular to a rotary type buoy and counterweight liquid level switch.
Background
The traditional float liquid level switch is generally composed of a float and a mechanical switch in a mechanical mode, cannot output an electric signal and cannot realize PLC automatic control; the traditional float liquid level switch is operated by a mode of floating up and pushing up a mechanical switch purely depending on buoyancy, and in order to ensure enough buoyancy and sensitivity, the float has to be light and thin, so that the wall of the float is light and thin, and the float is thick and thick, cannot adapt to a high-temperature and high-pressure environment and is easy to damage; traditional flotation pontoon liquid level switch installation is not nimble enough, specifically the mounted position can not be adjusted from top to bottom as required, need measure the mounted position in advance when installing on different equipment, and the location guide arm of corresponding specification is makeed, wastes time and energy, and is with high costs. In view of the above problems, there is a need for an improved float level switch to meet the needs of the development of the automation industry.
Disclosure of Invention
Aiming at the problems, the inventor provides a rotary type float bowl and counterweight liquid level switch through exploration, experiment and trial production, and the rotary type float bowl and counterweight liquid level switch is compact and reliable in structure, flexible and convenient to install, suitable for high-temperature and high-pressure environments, and capable of being matched with PLC automatic control.
In order to achieve the purpose, the invention adopts the technical scheme that: a rotary float bowl and counterweight liquid level switch is designed, and comprises a positioning guide rod, an adjusting device and a rod float bowl with a counterweight, wherein the adjusting device comprises a positioning clamping sleeve and a supporting screw; a reed switch is arranged in the positioning guide rod; the pole flotation pontoon of taking counter weight includes magnet steel, weight stack, pole flotation pontoon, the one end at the weight stack is fixed to the magnet steel, the other end at the weight stack is fixed to the pole flotation pontoon, be close to one side of pole flotation pontoon at the weight stack with the mounting hole has all been seted up on the positioning guide pole to install the weight stack on the positioning guide pole through the cooperation of top lag screw and mounting hole, and the weight stack can use the top lag screw to freely rotate as the pivot, when the magnet steel was rotatory to the below position, magnet steel and tongue tube coincidence.
Further, the screw hole penetrates through the side wall of the positioning and clamping sleeve, the supporting screw is arranged in the screw hole, and the length of the thread on the supporting screw is larger than that of the screw hole.
Furthermore, the rod buoy is made of stainless steel and is cylindrical.
Furthermore, the positioning guide rod is provided with at least two mounting holes which are distributed on the positioning guide rod at intervals; at least two reed switches are arranged in the positioning guide rod and are distributed in the positioning guide rod at intervals, and the reed switches are matched with the magnetic steel in position.
Furthermore, the positioning and clamping sleeve and the positioning guide rod are made of stainless steel materials.
The invention has the beneficial effects that: the positioning and clamping sleeve is sleeved on the positioning guide rod, the positioning and clamping sleeve and the positioning guide rod can be matched to different length specifications to adapt to the installation requirements of different equipment due to the sleeving relation between the positioning and clamping sleeve and the positioning guide rod, the positioning and clamping sleeve and the positioning guide rod are fixed together by a support screw penetrating through a screw hole after the length of the positioning and clamping sleeve and the positioning guide rod is selected, and then the positioning and clamping sleeve and the installation position of the equipment are fixed firmly, so that the flexible and quick positioning and installation are realized.
The lever buoy structure with the balance weight is innovatively designed by adopting a lever principle, a jacking screw is used as a fulcrum, magnetic steel and one side of most of the balance weight rods are used as resistance arms, and a small part of the balance weight rods and one side of the lever buoy are used as power arms; because a lever principle exists between the balance weight rod and the rod buoy, in order to meet the requirements of high-pressure and high-temperature environments, the rod buoy is made of stainless steel in a cylindrical shape so as to adapt to the high-pressure environment, improve the capacity of adapting to high-pressure and high-temperature pressure and resist the working environment; the small diameter of the lever is limited, the allowed space of an installation container is limited, and the diameter of the lever is within 28 millimeters, so that the provided buoyancy is insufficient, a designer is prompted to develop a new path, a rod buoy structure with a balance weight is adopted, the upward buoyancy is changed into rotary motion rotating around a tightening screw, and the design purpose is achieved, so that the balance weight structure must be made on the left side of the lever to meet the floating condition of the rod buoy, and the sensitivity of the liquid level switch is improved; because of adopting the counterweight rod structure, the buoyancy required by the floating of the rod buoy is reduced, so the rod buoy does not need to be designed to be thick, the overall structure of the rod buoy with the counterweight can be designed to be compact, and the rod buoy can be suitable for being installed and used by small-sized equipment; when the device is actually used, the device firstly contacts the rod buoy along with the rise of the liquid level, the buoyancy enables the rod buoy to float upwards, and then the rod buoy with the balance weight is pushed to rotate around the jacking screw until the liquid level submerges the rod buoy, the rod buoy is vertically positioned above the liquid level, and the magnetic steel is positioned below the liquid level and is superposed with the reed pipe.
The magnetic reed switch is also called a reed switch because of adopting the structure of the magnetic steel and the reed switch, and is an electric switch operated by an applied magnetic field, the magnetic steel is a permanent magnet with a magnetic field, and can control the on or off of the reed switch when the magnetic steel is superposed with or separated from the reed switch, so as to send an electric signal and realize PLC automatic control; in practical use, the invention is characterized in that: the special hydraulic oil reaches the corresponding position, namely one end of the rod buoy, the rod buoy with the balance weight can rotate around the axis of the jacking screw under the buoyancy effect of a working medium, the end of the rod buoy faces upwards, the end of the magnetic steel faces downwards, when the magnetic steel is parallel to the positioning guide rod, the magnetic steel is superposed with the reed pipe, the contact of the reed pipe is closed by magnetic force, the liquid level switch outputs a stable electric signal at the moment, the automatic control system receives the signal and confirms that the liquid level reaches the set position, and a corresponding instruction can be sent out, so that the system is switched to another working state, and the purpose of automatic circulation is achieved. When the liquid level drops, the rod float leaves the upward position of the rod float under the action of gravity, the magnetic steel is separated from the reed switch, the contact of the reed switch is separated due to no magnetic force, the disconnection state is recovered, the electric signal disconnects the automatic control system to obtain another signal, the liquid level drops below the switch position, when two liquid level switches act in the system, the accurate signals of low liquid level and high liquid level can be obtained, and when three liquid level switches are arranged, the aim of automatically controlling the high liquid level, the medium liquid level and the low liquid level of a corresponding container is fulfilled.
Drawings
FIG. 1 is a schematic view of the overall structure of a rotary float-type counterweight liquid level switch according to the present invention;
FIG. 2 is a schematic structural diagram of a lever float with a weight in a rotary float weighted level switch according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and detailed description, the structure and advantages of which will be apparent.
Referring to fig. 1 and 2, the technical scheme adopted by the invention is as follows: a rotary float bowl counterweight liquid level switch is designed, which comprises a positioning guide rod 1, an adjusting device and a rod float bowl 2 with counterweight, the adjusting device comprises a positioning and clamping sleeve and a supporting screw, the positioning and clamping sleeve is provided with a screw hole, the positioning and clamping sleeve is sleeved on the positioning guide rod 1, the supporting screw penetrates through the screw hole to fix the positioning and clamping sleeve and the positioning guide rod 1 together, the supporting screw is used for realizing fixation or loosening between the positioning clamping sleeve and the positioning guide rod 1, the screw hole penetrates through the side wall of the positioning and clamping sleeve, the supporting screw is arranged in the screw hole, the length of the thread on the supporting screw is larger than that of the screw hole, namely, the supporting screw is in threaded connection with the screw hole and tightly props against the positioning guide rod 1, which is a common fastening connection mode, and the installation can be implemented by the technicians in the field according to the above description; a reed switch 3 is arranged in the positioning guide rod 1; the pole flotation pontoon 2 of taking counter weight includes magnet steel 4, counter weight pole 5, pole flotation pontoon 6, magnet steel 4 is fixed in the one end of counter weight pole 5, the other end at counter weight pole 5 is fixed to pole flotation pontoon 6, one side that is close to pole flotation pontoon 6 at counter weight pole 5 with all seted up mounting hole 7 on the positioning guide arm 1, and install counter weight pole 5 on positioning guide arm 1 through the cooperation of top tightening screw 8 with mounting hole 7, and counter weight pole 5 can use top tightening screw 8 to freely rotate as the pivot, when specifically implementing, top tightening screw 8 purchases at the market, its anterior segment is the screw thread section, the back end is smooth to be the pivot section, the screw thread section is in the same place with mounting hole 7 threaded connection on the positioning guide arm 1, its inner wall of mounting hole 7 on the positioning guide arm 1 have with screw thread section assorted internal thread is used for connecting, the back end pivot section is arranged in mounting hole 7 on counter weight pole 5, as the pivot of pole, the inner wall of the mounting hole 7 on the counterweight rod 5 is smooth so as to be convenient to rotate, the rotary connection is a common rotary part connection mode, and the mounting can be implemented by a person skilled in the art according to the description; when the magnetic steel 4 is rotated to the lower position, the magnetic steel 4 is superposed with the reed pipe 3.
Furthermore, the positioning guide rod 1 is provided with at least two mounting holes 7 which are distributed on the positioning guide rod 1 at intervals; at least two reed switches 3 are arranged in the positioning guide rod 1 and are distributed in the positioning guide rod 1 at intervals, and the positions of the reed switches 3 are matched with the positions of the magnetic steels 4; the purpose is that the pole flotation pontoon 2 that is used for reserving the area counter weight of installing a plurality of units realizes the monitoring of low liquid level, well liquid level, high liquid level.
Furthermore, the positioning and clamping sleeve and the positioning guide rod 1 are made of stainless steel materials. The stainless steel material has the advantages of high temperature resistance, good high pressure resistance, low price and easy processing and manufacturing.
The invention adopts the structural design of a rod buoy of a counterweight, changes the upward buoyancy into the rotary motion of rotating around a jacking screw, thereby enabling the magnetic steel 4 to move to the position overlapped with or separated from the reed pipe 3, and the magnetic force enables the contact of the reed pipe 3 to be closed or separated to output an electric signal, thereby achieving the expected design purpose. Therefore, the micro buoyancy of the high-pressure and high-temperature resistant working medium meets the use requirement, the aim of stably outputting a liquid level signal under the high-pressure and high-temperature conditions is fulfilled, the hydraulic wellhead gas collecting and compressing system can automatically circulate, and the reliable operation of the system is ensured.
The invention is especially used in high-pressure steel cylinders, the working pressure of the steel cylinder is 5 MPa-22 MPa, so the liquid level switch is required to bear the high pressure of 22 MPa; working medium temperature in the steel bottle can reach 160 degrees centigrade at the continuous operation time, for the liquid level in the accurate ascertaining and control steel bottle, and design this liquid level switch, it enables automatic control system and obtains the liquid level position of working medium hydraulic oil in the steel bottle, accurately provides low liquid level, high liquid level signal, makes the system can accomplish the duty cycle of system under PLC's instruction, reaches the purpose of collecting the compressed well head natural gas.
Claims (5)
1. The utility model provides a rotation type flotation pontoon adds counter weight liquid level switch, characterized by: the adjusting device comprises a positioning and clamping sleeve and a supporting screw, the positioning and clamping sleeve is provided with a screw hole and is sleeved on the positioning and clamping guide rod, and the supporting screw penetrates through the screw hole to fix the positioning and clamping sleeve and the positioning and clamping guide rod together; a reed switch is arranged in the positioning guide rod; the pole flotation pontoon of taking counter weight includes magnet steel, weight stack, pole flotation pontoon, the one end at the weight stack is fixed to the magnet steel, the other end at the weight stack is fixed to the pole flotation pontoon, be close to one side of pole flotation pontoon at the weight stack with the mounting hole has all been seted up on the positioning guide pole to install the weight stack on the positioning guide pole through the cooperation of top lag screw and mounting hole, and the weight stack can use the top lag screw to freely rotate as the pivot, when the magnet steel was rotatory to the below position, magnet steel and tongue tube coincidence.
2. The rotary pontoon weighted liquid level switch of claim 1, wherein: the screw hole penetrates through the side wall of the positioning and clamping sleeve, the supporting screw is arranged in the screw hole, and the length of the thread on the supporting screw is larger than that of the screw hole.
3. The rotary pontoon weighted liquid level switch of claim 1, wherein: the rod buoy is made of stainless steel and is cylindrical.
4. The rotary pontoon weighted liquid level switch of claim 1, wherein: the positioning guide rod is provided with at least two mounting holes which are distributed on the positioning guide rod at intervals; at least two reed switches are arranged in the positioning guide rod and distributed in the positioning guide rod at intervals, and the reed switches are matched with the magnetic steel in position.
5. The rotary pontoon weighted liquid level switch of claim 1, wherein: the positioning clamping sleeve and the positioning guide rod are made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010751578.6A CN114068244A (en) | 2020-07-30 | 2020-07-30 | Rotary float bowl counterweight liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010751578.6A CN114068244A (en) | 2020-07-30 | 2020-07-30 | Rotary float bowl counterweight liquid level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114068244A true CN114068244A (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010751578.6A Pending CN114068244A (en) | 2020-07-30 | 2020-07-30 | Rotary float bowl counterweight liquid level switch |
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| Country | Link |
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| CN (1) | CN114068244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464498A (en) * | 2022-02-23 | 2022-05-10 | 苏州优德通力科技有限公司 | Self-balancing liquid level switch mechanism with rocker arm with balance weight |
-
2020
- 2020-07-30 CN CN202010751578.6A patent/CN114068244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464498A (en) * | 2022-02-23 | 2022-05-10 | 苏州优德通力科技有限公司 | Self-balancing liquid level switch mechanism with rocker arm with balance weight |
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