Improved explosion-proof electric heating filtering sampling probe
By setting up an explosion-proof electric heater in the explosion-proof electric heating filter sampling probe, splitting the RTD temperature measurement probe and adding a new explosion-proof line box, the problems of the heating rod not being inserted, overheated and self-destructing, unable to monitor heating temperature and inconvenience in maintenance during the manufacturing and use of the original probe are solved, and a smoother installation and replacement, improved equipment life and reduced maintenance frequency and maintenance costs are achieved.
Patent Information
- Application Number
- CN202420932109.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the manufacturing and use of the original explosion-proof electric heating filter sampling probe, there are problems such as the heating rod being unable to be inserted into the heating chamber, the heating rod being overheated and self-destructed, the heating temperature cannot be monitored and maintenance is inconvenient.
An improved explosion-proof electric heating filter sampling probe was designed. By setting up an explosion-proof electric heater, splitting the RTD temperature measuring probe as an independent component and adding a new explosion-proof line box, sealing rings at both ends of the filter element inside the heating chamber are made into one large and one small, and a compaction piece is used to replace the filter element.
The installation and replacement of the improved probe is smoother, reducing the risk of overheating and self-destructing of the heating rod, improving equipment life and reducing maintenance frequency, reducing user maintenance costs, and improving the matching fluency and friction of the filter element and handle.
Smart Images
Figure CN222952049U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sampling probes, in particular to an improved explosion-proof electric heating filtering sampling probe. Background Art
[0002] The explosion-proof electric heating filter sampling probe belongs to the special application of CEMS flue gas online monitoring system in high-risk places with explosive dangerous gases and dust such as petrochemical industry.
[0003] Defects of the original explosion-proof electric heating filter sampling probe:
[0004] (1) The original explosion-proof electric heater has two heating rods and one RTD temperature probe. Due to manufacturing tolerances and incomplete symmetry, it is impossible to insert the heating cavity, and the heating rod may have insufficient contact area with the cavity, causing the heating rod to overheat and burn easily.
[0005] (2) The original probe did not lead out the explosion-proof RTD temperature signal built into the heater, and could not monitor the probe heating temperature.
[0006] (3) If any component of the original explosion-proof electric heater heating rod and explosion-proof RTD temperature probe is damaged, it must be replaced as a whole.
[0007] (iv) The sealing rings at both ends of the original internal filter element are of the same size, and the filter element cannot be pulled out with the handle during maintenance.
[0008] The explosion-proof electric heating filter sampling probe developed for this special application has some shortcomings during long-term operation and use, which has caused a lot of trouble for daily inspection and maintenance. Therefore, an improved explosion-proof electric heating filter sampling probe is proposed to solve the problems raised in the background technology. Utility Model Content
[0009] The utility model aims to provide an improved explosion-proof electric heating filter sampling probe to solve the problems raised in the above-mentioned background technology.
[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved explosion-proof electric heating filter sampling probe, comprising: a heating cavity, the heating cavity is connected to a flange, and the heating cavity is connected to a sampling probe through the flange.
[0011] Preferably, a cavity sealing end is connected between the sampling probe and the heating cavity.
[0012] Preferably, two heating rods are symmetrically connected inside the heating cavity.
[0013] Preferably, a filter element is connected to the interior of the heating cavity.
[0014] Preferably, the heating cavity is connected to an explosion-proof electric heater. By setting up the explosion-proof electric heater, installation and replacement after modification are smoother, and the risk of overheating and self-destruction of the heating rod is reduced, thereby effectively improving the life of the equipment and reducing the maintenance frequency, greatly reducing the user's later maintenance costs. By splitting the RTD temperature measuring probe of the explosion-proof electric heater into independent components and adding an explosion-proof junction box, and then connecting the RTD temperature signal, an external user interface is reserved.
[0015] Preferably, a handle sealing end is connected between the heating cavity and the explosion-proof electric heater. By setting the cavity sealing end and the handle sealing end, the sealing rings at both ends of the filter element inside the heating cavity are made into one large and one small, and the specifications of the sealing ring at the cavity sealing end remain unchanged, while the specifications of the sealing ring at the handle sealing end are reduced, thereby improving the fit and friction between the filter element and the handle.
[0016] Preferably, a compression sheet is connected between the heating cavity and the explosion-proof electric heater. Through such an arrangement, the filter core can be smoothly taken out of the heating cavity and replaced with the handle, thus reducing unnecessary trouble during maintenance.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] 1. By setting up an explosion-proof electric heater, the installation and replacement will be smoother after modification, and the risk of overheating and self-destruction of the heating rod will be reduced, which will effectively increase the life of the equipment and reduce the maintenance frequency, thus greatly reducing the user's later maintenance costs. By splitting the RTD temperature probe of the explosion-proof electric heater into independent components and adding an explosion-proof junction box, the RTD temperature signal is connected and an external user interface is reserved;
[0019] 2. By setting the cavity sealing end and the handle sealing end, the sealing rings at both ends of the filter element inside the heating cavity are made into one large and one small, and the specifications of the sealing ring at the cavity sealing end remain unchanged, while the specifications of the sealing ring at the handle sealing end are reduced, thereby improving the fit and friction between the filter element and the handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] In the figure: 1. Heating chamber; 2. Chamber sealing end; 3. Flange; 4. Sampling probe; 5. Heating rod; 6. Filter element; 7. Handle sealing end; 8. Pressing plate; 9. Explosion-proof electric heater. DETAILED DESCRIPTION
[0022] 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 the embodiments. 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.
[0023] like Figure 1 As shown, an improved explosion-proof electric heating filtering sampling probe comprises: a heating cavity 1, a flange 3 is connected to the heating cavity 1, and a sampling probe 4 is connected to the heating cavity 1 through the flange 3.
[0024] A cavity sealing end 2 is connected between the sampling probe 4 and the heating cavity 1 .
[0025] Two heating rods 5 are symmetrically connected inside the heating cavity 1 .
[0026] The interior of the heating cavity 1 is connected with a filter core 6 .
[0027] The heating cavity 1 is connected to an explosion-proof electric heater 9. By setting up the explosion-proof electric heater 9, the installation and replacement after modification are smoother, and the risk of overheating and self-destruction of the heating rod 5 is reduced, which effectively improves the equipment life and reduces the maintenance frequency, greatly reducing the user's later maintenance costs. By splitting the RTD temperature measuring probe of the explosion-proof electric heater 9 into independent components and adding an explosion-proof junction box, and then connecting this RTD temperature signal, an external user interface is reserved.
[0028] A handle sealing end 7 is connected between the heating cavity 1 and the explosion-proof electric heater 9. By setting the cavity sealing end 2 and the handle sealing end 7, the sealing rings at both ends of the filter core 6 inside the heating cavity 1 are made into one large and one small. The specifications of the sealing ring at the cavity sealing end 2 remain unchanged, and the specifications of the sealing ring at the handle sealing end 7 are reduced, thereby improving the fit and friction between the filter core 6 and the handle.
[0029] A compression sheet 8 is connected between the heating cavity 1 and the explosion-proof electric heater 9. By arranging in this way, the filter core 6 can be smoothly taken out of the heating cavity 1 for replacement along with the handle, thus reducing unnecessary troubles during maintenance.
[0030] Furthermore, the electrical equipment in this embodiment is connected to a control switch, and the above electrical control technologies are all existing technologies, which are not the main innovation of this application and are not described in detail here.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An improved explosion-proof electric heating filter sampling probe, comprising: The heating cavity (1) is characterized in that a flange (3) is connected to the heating cavity (1), the heating cavity (1) is connected to a sampling probe (4) via the flange (3), and the heating cavity (1) is connected to an explosion-proof electric heater (9).
2. The improved explosion-proof electric heating filter sampling probe according to claim 1 is characterized in that: A cavity sealing end (2) is connected between the sampling probe (4) and the heating cavity (1).
3. The improved explosion-proof electric heating filter sampling probe according to claim 1 is characterized in that: Two heating rods (5) are symmetrically connected inside the heating cavity (1).
4. The improved explosion-proof electric heating filter sampling probe according to claim 1 is characterized in that: A filter core (6) is connected to the interior of the heating cavity (1).
5. The improved explosion-proof electric heating filter sampling probe according to claim 1 is characterized in that: A handle sealing end (7) is connected between the heating cavity (1) and the explosion-proof electric heater (9).
6. The improved explosion-proof electric heating filter sampling probe according to claim 1 is characterized in that: A compression sheet (8) is connected between the heating cavity (1) and the explosion-proof electric heater (9).