CN218781868U - Effectual level sensor of winter protection - Google Patents
Effectual level sensor of winter protection Download PDFInfo
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- CN218781868U CN218781868U CN202223198146.0U CN202223198146U CN218781868U CN 218781868 U CN218781868 U CN 218781868U CN 202223198146 U CN202223198146 U CN 202223198146U CN 218781868 U CN218781868 U CN 218781868U
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- pressure sensing
- pressure
- sensing cylinder
- level sensor
- thick bamboo
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Abstract
The utility model provides an effectual level sensor of winter protection. Relates to the technical field of liquid level meters. A piston is arranged in a pressure sensing cylinder on the outer side of a pressure sensing membrane of the pressure transmitter, the tail end of the pressure sensing cylinder is in threaded connection with a limiting sleeve, the middle of the pressure sensing cylinder is provided with a mounting flange, and low-temperature hydraulic oil is filled in the pressure sensing cylinder. The utility model discloses following beneficial effect has: the low-temperature hydraulic oil in the pressure sensing cylinder cannot be condensed at low temperature, the liquid level pressure in the container is transmitted to the pressure sensing diaphragm by the piston in the pressure sensing cylinder, so that the problem that the liquid at the position of the liquid level sensor cannot be measured due to freezing in a low-temperature environment is solved, the exhaust cavity is located at the highest point of an inner hole of the pressure sensing cylinder, air is exhausted when the low-temperature hydraulic oil is filled, the pressure error caused by the air in the pressure sensing cylinder is prevented, before the liquid level sensor is installed on site, the pressure adjusting rod is rotated by a special tool, the pressure in the pressure sensing cylinder is corrected, and the pressure in the pressure sensing cylinder is adjusted to be zero and then installed.
Description
The technical field is as follows:
the utility model belongs to the technical field of the level gauge technique and specifically relates to an effectual level sensor of winter protection.
Background art:
side-mounted liquid level sensors, such as magnetic turning plate liquid level sensors and pressure (liquid level) sensors, are connected to the side of a measured container in a sealing mode through flanges, the sensors are communicated with the measured container to measure the height or pressure of liquid, the sensors are exposed outside the container so as to observe liquid level values, in cold seasons, the container generally can be provided with a heat preservation layer to prevent the liquid in the container from freezing, however, the liquid level sensors exposed outside the container are weak links, the liquid does not flow at the sensor part, the temperature is lower than the freezing point of the liquid and can be frozen, the liquid level cannot be measured, and flange pipelines at the joints are still frozen to cause liquid leakage.
The utility model has the following contents:
in order to solve the problem that present level sensor freezes unable measurement liquid level winter, the utility model provides an effectual level sensor of winter protection.
The technical scheme of the utility model is that: the utility model provides an effectual level sensor of winter protection, includes pressure transmitter, and pressure transmitter's pressure sensing diaphragm outside is one section pressure sensing section of thick bamboo, is equipped with the piston in the pressure sensing section of thick bamboo, and piston and pressure sensing section of thick bamboo hole pass through sealing washer clearance fit and connect, and the terminal threaded connection stop collar of pressure sensing section of thick bamboo, the hole of stop collar is less than the external diameter of piston, and the middle part of pressure sensing section of thick bamboo is mounting flange, and mounting flange's sealed anchor ring is towards stop collar one side, and pressure sensing section of thick bamboo intussuseption is filled with low temperature hydraulic oil.
The pressure sensing cylinder is provided with a threaded hole on the outer side of the mounting flange, the threaded hole is connected with the plug in a sealing mode, the pressure sensing cylinder is provided with an exhaust cavity in the threaded hole, and when the pressure sensing cylinder is in a horizontal state, the exhaust cavity is located at the highest point of an inner hole of the pressure sensing cylinder.
The inner hole of the plug is connected with a pressure regulating rod in a threaded sealing manner, the upper end face of the pressure regulating rod is lower than the upper end face of the plug, and a counter bore with an irregular shape is processed on the upper end face of the pressure regulating rod.
The utility model discloses following beneficial effect has: the low-temperature hydraulic oil in the pressure sensing cylinder cannot be condensed at low temperature, the piston in the pressure sensing cylinder transmits the liquid level pressure in the container to the pressure sensing diaphragm, so that the problem that the liquid at the position of the liquid level sensor cannot be measured when the liquid is frozen in a low-temperature environment is solved, the exhaust cavity is located at the highest point of an inner hole of the pressure sensing cylinder, air is exhausted when the low-temperature hydraulic oil is filled, the pressure error caused by the air in the pressure sensing cylinder is prevented, before the liquid level sensor is installed on site, the pressure adjusting rod is rotated through a special tool, the pressure in the pressure sensing cylinder is corrected, and the pressure in the pressure sensing cylinder is adjusted to be zero and then the pressure sensing diaphragm is installed.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
In the figure, 1-a pressure transmitter, 2-a pressure sensing membrane, 3-a pressure sensing cylinder, 4-a mounting flange, 5-a piston, 6-a limiting sleeve, 7-an exhaust cavity, 8-a threaded hole, 9-a plug, 10-a pressure adjusting rod and 11-a counter bore.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
by figure 1 combine shown in figure 2, a effectual level sensor of winter protection, including pressure transmitter 1, pressure sensing diaphragm 2 outside of pressure transmitter 1 is one section pressure sensing section of thick bamboo 3, be equipped with piston 5 in the pressure sensing section of thick bamboo 3, piston 5 and 3 holes of pressure sensing section of thick bamboo pass through sealing washer clearance fit and connect, the terminal threaded connection stop collar 6 of pressure sensing section of thick bamboo 3, the hole of stop collar 6 is less than the external diameter of piston 5, the middle part of pressure sensing section of thick bamboo 3 is mounting flange 4, the sealed anchor ring of mounting flange 4 is towards stop collar 6 one side, the intussuseption of pressure sensing section of thick bamboo 3 is filled with low temperature hydraulic oil, install this level sensor on the container, the low temperature hydraulic oil in the pressure sensing section of thick bamboo 3 can not condense at low temperature, piston 5 inside the pressure sensing section of thick bamboo 3 transmits the liquid level pressure in the container for pressure sensing diaphragm 2, thereby solve the unable measurable problem of liquid freezing at the liquid level sensor position under the low temperature environment, the terminal of pressure sensing section of thick bamboo 3 injects inside the container, the pressure sensing section of thick bamboo 3 inside of mounting flange 4 inside liquid exchanges heat with the inside liquid of container, improve the temperature hydraulic oil in the pressure sensing section of thick bamboo 3, alleviate the influence of low temperature.
The outer side of the mounting flange 4 of the pressure sensing cylinder 3 is provided with a threaded hole 8, the threaded hole 8 is connected with a screwed plug 9 in a sealing mode, the pressure sensing cylinder 3 is provided with an exhaust cavity 7 at the position of the threaded hole 8, when the pressure sensing cylinder 3 is in a horizontal state, the exhaust cavity 7 is located at the highest point of an inner hole of the pressure sensing cylinder 3, air is exhausted when low-temperature hydraulic oil is filled, and pressure errors caused by the fact that air exists in the pressure sensing cylinder 3 are prevented.
The inner hole of the plug 9 is in threaded sealing connection with the pressure regulating rod 10, the upper end face of the pressure regulating rod 10 is lower than the upper end face of the plug 9, a counter bore 11 with an irregular shape is machined in the upper end face of the pressure regulating rod 10, an anti-theft effect can be achieved, before the liquid level sensor is installed on site, the pressure regulating rod 10 is rotated through a special tool, pressure in the pressure sensing cylinder 3 is corrected, the pressure in the pressure sensing cylinder 3 is adjusted to be zero, and then the pressure regulating rod is installed.
Claims (3)
1. The utility model provides an effectual level sensor prevents cold, includes pressure transmitter (1), its characterized in that: pressure sensing diaphragm (2) the outside of pressure transmitter (1) is one section pressure sensing section of thick bamboo (3), be equipped with piston (5) in pressure sensing section of thick bamboo (3), piston (5) and pressure sensing section of thick bamboo (3) hole pass through sealing washer clearance fit and connect, pressure sensing section of thick bamboo (3) terminal threaded connection stop collar (6), the hole of stop collar (6) is less than the external diameter of piston (5), the middle part of pressure sensing section of thick bamboo (3) is mounting flange (4), the sealed anchor ring of mounting flange (4) is towards stop collar (6) one side, pressure sensing section of thick bamboo (3) intussuseption is filled with low temperature hydraulic oil.
2. The liquid level sensor with good cold-proof effect as claimed in claim 1, wherein: a threaded hole (8) is formed in the outer side of a mounting flange (4) of the pressure sensing cylinder (3), the threaded hole (8) is connected with a plug (9) in a sealing mode, an exhaust cavity (7) is machined in the position of the threaded hole (8) of the pressure sensing cylinder (3), and when the pressure sensing cylinder (3) is in a horizontal state, the exhaust cavity (7) is located at the highest point of an inner hole of the pressure sensing cylinder (3).
3. The liquid level sensor with good cold-proof effect as claimed in claim 2, wherein: the inner hole of the plug (9) is in threaded sealing connection with a pressure regulating rod (10), the upper end face of the pressure regulating rod (10) is lower than the upper end face of the plug (9), and a counter bore (11) with an irregular shape is machined in the upper end face of the pressure regulating rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198146.0U CN218781868U (en) | 2022-11-30 | 2022-11-30 | Effectual level sensor of winter protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198146.0U CN218781868U (en) | 2022-11-30 | 2022-11-30 | Effectual level sensor of winter protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218781868U true CN218781868U (en) | 2023-03-31 |
Family
ID=85712265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223198146.0U Active CN218781868U (en) | 2022-11-30 | 2022-11-30 | Effectual level sensor of winter protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218781868U (en) |
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2022
- 2022-11-30 CN CN202223198146.0U patent/CN218781868U/en active Active
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