Anti-explosion liquid level transmitter
By introducing the exhaust cylinder and jet plug into the liquid level transmitter, the problems of lax sealing and insufficient explosion protection are solved, a safe measurement environment is achieved, explosion accidents are avoided, and measurement accuracy is improved.
Patent Information
- Application Number
- CN202421126470.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing pressure level transmitters have poor sealing, which can easily lead to ignition and explosion accidents, and insufficient explosion-proof measures, affecting measurement accuracy.
An explosion-proof liquid level transmitter is designed, including a transmitter housing, exhaust cylinder, sealing ring, explosion-proof housing and jet plug. High-temperature gas is discharged through the exhaust cylinder, alarm lights and alarms, and air-pressure extrusion rubber plugs are used to keep away. Exhaust cylinder, internal exhaust cooling is carried out to ensure sealing and safety.
It effectively prevents explosion accidents, ensures the safety and accuracy of the measuring equipment. Through the design of the exhaust cylinder and sealing ring, gas is prevented from entering, avoids ignition of the equipment, and improves sealing.
Smart Images
Figure CN222279876U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of explosion-proof liquid level transmitters, in particular to an explosion-proof liquid level transmitter. Background Art
[0002] The pressure level transmitter is also called the immersion level transmitter. The immersion level sensor is a pressure sensor for measuring liquid level. It is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses an isolated 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. It is generally suitable for 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] At present, the pressure level transmitter has a poor seal, and sparks are easily generated inside the transmitter. If the explosion-proof measures are not taken, it may cause an explosion accident, thus affecting the measurement progress. Therefore, we propose an explosion-proof level transmitter. Utility Model Content
[0004] The purpose of the utility model is to provide an explosion-proof liquid level transmitter, in which the heat generated in the explosion-proof shell and the high temperature generated by the water vapor will cause the transmitter shell to strike. Therefore, an exhaust pipe is arranged on the left side of the explosion-proof shell. When the temperature or gas exceeds the critical point of measurement, the alarm light on the top of the explosion-proof shell will generate an alarm. At the same time, the rubber plug is squeezed by the air pressure, so that the jet plug is away from the exhaust pipe. Therefore, the interior of the explosion-proof shell is exhausted and cooled down first, so that the staff can check it, thereby preventing explosion. The existing pressure liquid level transmitter has a poor seal and is prone to sparks in the transmitter. If the explosion-proof is not done well, it may cause an explosion accident, thereby affecting the measurement accuracy.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model is an explosion-proof liquid level transmitter, comprising a transmitter housing, an exhaust pipe is arranged on the left side of the transmitter housing, a sealing ring is arranged on the right side of the transmitter housing, and an explosion-proof shell is arranged on the front side of the transmitter housing;
[0007] The left side of the explosion-proof shell 1 is fixedly connected to the right side of the exhaust pipe, the left side of the exhaust pipe is slidably connected with a jet plug, the right side of the jet plug is fixedly connected to a limit rod, and the outer surface of the limit rod is wound with a second spring.
[0008] Furthermore, a limiting block is fixedly connected to the outer surface of the limiting rod, a rubber plug is fixedly connected to the right side of the limiting rod, and a sealing port is fixedly connected to the inner wall of the exhaust pipe.
[0009] Furthermore, the inner wall of the sealing port is slidably connected to the outer surface of the rubber plug, the left side of the second spring is fixedly connected to the left inner wall of the exhaust pipe, and the outer surface of the exhaust pipe is fixedly connected with an electrical wire.
[0010] Furthermore, a limiting ear is fixedly connected to the outer surface of the electrical wire, the right side of the limiting ear is fixedly connected to the left side of the explosion-proof shell, an alarm light is fixedly connected to the right side of the electrical wire, and the bottom of the alarm light is fixedly connected to the top of the explosion-proof shell.
[0011] Furthermore, the left side of the sealing ring is fixedly connected to the right side of the explosion-proof shell, the inner wall of the right side of the sealing ring is fixedly connected to a spring, the left side of the spring is fixedly connected to a rubber ring, and the top of the transmitter housing is fixedly connected to a connecting block.
[0012] Furthermore, a mark plate is fixedly connected to the top of the connection block by screws, a connection port is fixedly connected to the right side of the connection block, a nut is threadedly connected to the connection port, and a connection block is fixedly connected to the bottom of the transmitter housing.
[0013] Furthermore, a flange ring 1 is fixedly connected to the bottom of the connection block, and the flange ring 1 is fixedly connected to a flange ring 2 via screws. A display screen and a control button are respectively fixedly connected to the front of the transmitter housing.
[0014] Furthermore, the back side of the transmitter housing is in contact with an explosion-proof shell 2, and the explosion-proof shell 1 is fixedly connected to the explosion-proof shell 2 by screws.
[0015] The utility model has the following beneficial effects:
[0016] 1. The utility model sets a jet plug. Specifically, the heat generated in the explosion-proof shell 1 and the high temperature generated by the water vapor will cause the transmitter housing to strike. Therefore, an exhaust pipe is set on the left side of the explosion-proof shell 1. When the temperature or gas exceeds the critical point of measurement, the alarm light on the top of the explosion-proof shell 1 will generate an alarm. At the same time, the rubber plug is squeezed by the air pressure, so that the jet plug is away from the exhaust pipe. Therefore, the interior of the explosion-proof shell 2 is exhausted and cooled down first, so that the staff can check it, thereby preventing explosion.
[0017] 2. The utility model provides an explosion-proof shell, specifically, a sealing ring on the right side of the explosion-proof shell is used to seal the connection port. After the connection port is assembled with the connection wire through a nut, the connection wire is sleeved through an adapter ring. At the same time, a spring and a rubber ring are provided inside the adapter ring. By tightening the adapter ring, a spring is generated on the surface of the sealing ring to squeeze the rubber ring, and the rubber ring squeezes the connection wire, thereby cutting off the gas from entering the explosion-proof shell.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the second structure of the utility model explosion-proof shell;
[0022] Figure 3 This is a schematic diagram of the structure of the connection port of the utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the rubber ring of the utility model;
[0024] Figure 5 This is a schematic diagram of the second structure of the utility model spring.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1. Transmitter housing; 12. Control button; 13. Display screen; 14. Marking plate; 15. Connection block; 151. Flange ring one; 152. Flange ring two; 16. Nut; 17. Connection port; 2. Explosion-proof shell one; 21. Warning light; 22. Explosion-proof shell two; 3. Exhaust pipe; 31. Limit ear; 32. Electrical wire; 33. Jet plug; 34. Limit rod; 35. Spring two; 36. Limit block; 37. Sealing port; 38. Rubber plug; 4. Sealing ring; 41. Adapter ring; 42. Spring one; 43. Rubber ring. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-5As shown, the utility model is an explosion-proof liquid level transmitter, including a transmitter housing 1, an exhaust pipe 3 is arranged on the left side of the transmitter housing 1, a sealing ring 4 is arranged on the right side of the transmitter housing 1, an explosion-proof shell 2 is arranged on the front side of the transmitter housing 1, the left side of the explosion-proof shell 2 is fixedly connected to the right side of the exhaust pipe 3, a jet plug 33 is slidably connected to the left side of the exhaust pipe 3, and a limit rod 34 is fixedly connected to the right side of the jet plug 33, and a spring 2 35 is wound around the outer surface of the limit rod 34. Specifically, the heat generated in the explosion-proof shell 2 and the high temperature generated by the water vapor will cause the transmitter housing 1 to go on strike. Therefore, the exhaust pipe 3 is arranged on the left side of the explosion-proof shell 2. When the temperature or gas exceeds the critical point of measurement, the alarm light 21 on the top of the explosion-proof shell 2 will generate an alarm. At the same time, due to the gas The rubber plug 38 is squeezed by pressure to make the jet plug 33 away from the exhaust pipe 3, thereby first exhausting and cooling the interior of the explosion-proof shell 22, so that the staff can check it, thereby preventing explosion. The outer surface of the limit rod 34 is fixedly connected to the limit block 36, and the right side of the limit rod 34 is fixedly connected to the rubber plug 38. The inner wall of the exhaust pipe 3 is fixedly connected to a sealing port 37, and the outside of the explosion-proof shell 2 is specifically isolated through the sealing port 37. The inner wall of the sealing port 37 is slidably connected to the outer surface of the rubber plug 38, and the left side of the spring 2 35 is fixedly connected to the inner wall of the left side of the exhaust pipe 3. The outer surface of the exhaust pipe 3 is fixedly connected to an electrical wire 32, and the exhaust is specifically performed in the same way as the exhaust pipes 3 of various countries. The outer surface of the electrical wire 32 is fixedly connected to a limiting ear 31. The right side of the limiting ear 31 is fixedly connected to the left side of the explosion-proof shell 2, and the right side of the electrical wire 32 is fixedly connected with an alarm light 21, and the bottom of the alarm light 21 is fixedly connected to the top of the explosion-proof shell 2. Specifically, the connection port 17 is sealed through the sealing ring 4 on the right side of the explosion-proof shell 2. After the connection port 17 is assembled with the connecting wire through the nut 16, the connecting wire is sleeved with the adapter ring 41 of various countries. At the same time, a spring 42 and a rubber ring 43 are arranged inside the adapter ring 41. By tightening the adapter ring 41, a spring 42 will be generated on the surface of the sealing ring 4 to squeeze the rubber ring 43, so that the rubber ring 43 squeezes the connecting wire, thereby cutting off the gas from entering the explosion-proof shell 2. The left side of the sealing ring 4 is fixedly connected to the right side of the explosion-proof shell 2, and the inner wall of the right side of the sealing ring 4 is fixedly connected with a spring Spring 1 42, a rubber ring 43 is fixedly connected to the left side of the spring 1 42, a connecting block 15 is fixedly connected to the top of the transmitter housing 1, which is sealed by a sealing ring, a mark plate 14 is fixedly connected to the top of the connecting block 15 by screws, a connecting port 17 is fixedly connected to the right side of the connecting block 15, a nut 16 is threadedly connected to the connecting port 17, a connecting block 15 is fixedly connected to the bottom of the transmitter housing 1, a fixed connection is made through the connecting block 15, a flange ring 151 is fixedly connected to the bottom of the connecting block 15, and the flange ring 151 is fixedly connected to the flange ring 2 152 by screws, a display screen 13 and a control button 12 are fixedly connected to the front of the transmitter housing 1, and an explosion-proof shell 2 22 is contacted to the back of the transmitter housing 1,The explosion-proof housing 1 2 is fixedly connected to the explosion-proof housing 2 22 by screws, and the instrument is controlled by the control button 12.
[0029] A specific application of this embodiment is: the specific use is to first assemble the explosion-proof shell 22 on the back of the transmitter housing 1, and then assemble the explosion-proof shell 1 2 on the front of the transmitter housing 1 and tightly fix it with the explosion-proof shell 22 by screws. At the same time, a connecting block 15 is provided at the bottom of the transmitter housing 1, and the flange ring 151 fixed at the bottom of the connecting block 15 is tightly connected with the flange ring 2 152 by screws. In order to have a stable environment during the measurement process, the sealing ring 4 on the right side of the explosion-proof shell 1 2 is used to seal the connecting port 17. After the connecting port 17 is assembled with the connecting wire through the nut 16, the connecting wire is sleeved with the adapter ring 41 of various countries. At the same time, a spring 1 42 and a rubber ring 43 are provided inside the adapter ring 41. By tightening the adapter ring 4 1 On the surface of the sealing ring 4, a spring 42 will be generated to squeeze the rubber ring 43, so that the rubber ring 43 squeezes the connecting line, thereby cutting off the gas from entering the explosion-proof shell 2 to avoid the danger of internal equipment due to ignition. At the same time, due to the different environments in which the transmitter housing 1 is used, the heat generated in the explosion-proof shell 2 and the high temperature generated by water vapor will cause the transmitter housing 1 to go on strike. Therefore, an exhaust pipe 3 is arranged on the left side of the explosion-proof shell 2. When the temperature or gas exceeds the critical point of measurement, the alarm light 21 on the top of the explosion-proof shell 2 will generate an alarm. At the same time, the rubber plug 38 is squeezed due to the air pressure, thereby squeezing the spring 2 35 through the limit block 36 to make the jet plug 33 away from the exhaust pipe 3. Therefore, the interior of the explosion-proof shell 22 is exhausted and cooled first, so that the staff can check it.
[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An explosion-proof liquid level transmitter, comprising a transmitter housing (1), wherein an exhaust pipe (3) is arranged on the left side of the transmitter housing (1), characterized in that: A sealing ring (4) is provided on the right side of the transmitter housing (1), and an explosion-proof housing (2) is provided on the front side of the transmitter housing (1); The left side of the explosion-proof shell 1 (2) is fixedly connected to the right side of the exhaust pipe (3), the left side of the exhaust pipe (3) is slidably connected to an injection plug (33), the right side of the injection plug (33) is fixedly connected to a limit rod (34), and the outer surface of the limit rod (34) is wound with a second spring (35).
2. The explosion-proof liquid level transmitter according to claim 1, characterized in that: The outer surface of the limiting rod (34) is fixedly connected to a limiting block (36), the right side of the limiting rod (34) is fixedly connected to a rubber plug (38), and the inner wall of the exhaust pipe (3) is fixedly connected to a sealing opening (37).
3. The explosion-proof liquid level transmitter according to claim 2, characterized in that: The inner wall of the sealing opening (37) is slidably connected to the outer surface of the rubber plug (38); the left side of the second spring (35) is fixedly connected to the left inner wall of the exhaust pipe (3); and the outer surface of the exhaust pipe (3) is fixedly connected to an electrical wire (32).
4. The explosion-proof liquid level transmitter according to claim 3, characterized in that: The outer surface of the electrical wire (32) is fixedly connected to a limiting ear (31), the right side of the limiting ear (31) is fixedly connected to the left side of the first explosion-proof shell (2), the right side of the electrical wire (32) is fixedly connected to an alarm light (21), and the bottom of the alarm light (21) is fixedly connected to the top of the first explosion-proof shell (2).
5. The explosion-proof liquid level transmitter according to claim 4, characterized in that: The left side of the sealing ring (4) is fixedly connected to the right side of the explosion-proof shell (2); the inner wall of the right side of the sealing ring (4) is fixedly connected to a spring (42); the left side of the spring (42) is fixedly connected to a rubber ring (43); and the top of the transmitter housing (1) is fixedly connected to a connecting block (15).
6. The explosion-proof liquid level transmitter according to claim 5, characterized in that: The top of the connection block (15) is fixedly connected to a marking plate (14) by means of screws, the right side of the connection block (15) is fixedly connected to a connection port (17), the connection port (17) is threadedly connected to a nut (16), and the bottom of the transmitter housing (1) is fixedly connected to the connection block (15).
7. The explosion-proof liquid level transmitter according to claim 6, characterized in that: The bottom of the connection block (15) is fixedly connected to a flange ring 1 (151), and the flange ring 1 (151) is fixedly connected to a flange ring 2 (152) via screws. The front of the transmitter housing (1) is respectively fixedly connected to a display screen (13) and a control button (12).
8. The explosion-proof liquid level transmitter according to claim 7, characterized in that: The back of the transmitter housing (1) contacts with a second explosion-proof housing (22), and the first explosion-proof housing (2) is fixedly connected to the second explosion-proof housing (22) by means of screws.