Optical ion sensor
By designing a detachable UV lamp structure in the photoionization sensor, the problem of frequent UV lamp replacement is solved, extending the service life and reducing costs.
Patent Information
- Application Number
- CN202422836347.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The UV lamps in existing photoionization sensors have short lifespans, leading to frequent replacements and high operating costs.
Design a photoionization sensor with an ionization chamber inside the sensor housing containing a neutral liquid. A UV lamp is movably mounted on a bottom cover, which is connected to the sensor housing via threads and is equipped with a sealing ring and a UV lamp mounting bracket for easy replacement of the UV lamp.
It extends the lifespan of UV lamps and reduces operating costs.
Smart Images
Figure CN223637439U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas monitoring field, especially a kind of photoionization sensor. BACKGROUND
[0002] PID photoionization principle: using high-energy ultraviolet to ionize the measured gas, forms current on the polar plate, and the size of gas concentration is obtained by the size of current.Currently, photoionization sensor on the market is mostly imported, and since the service life of uv lamp inside sensor is 4000 hours on average, the entire sensor needs to be replaced, so the use cost is higher. SUMMARY
[0003] The utility model aims at the technical problems of prior art, and provides a kind of photoionization sensor.
[0004] In order to solve the above technical problems, the utility model discloses a kind of photoionization sensor, the ionization cavity is equipped in the sensor shell, neutral liquid is equipped in the ionization cavity, the ionization cavity one end is equipped with air inlet, the other end is equipped with air outlet, ionization cavity positive electrode is electrically connected bias circuit board, ionization cavity negative electrode is electrically connected detection circuit board, uv lamp is equipped in the ionization cavity bottom, uv lamp is movably installed on bottom cover, uv lamp circuit board is equipped in the inside of bottom cover, and bottom cover is movably installed on sensor shell.
[0005] In the utility model, the outer thread is equipped on the bottom of the sensor shell, and the inner thread is equipped in the bottom cover.
[0006] In the utility model, the sealing ring is equipped in the bottom cover.
[0007] In the utility model, uv lamp fixing seat is equipped on the bottom cover.
[0008] Beneficial effects: the utility model is convenient to replace uv lamp, greatly increases the service life of PID photoionization sensor, and reduces use cost. BRIEF DESCRIPTION OF DRAWINGS
[0009] The above and / or other aspects of the utility model will become more apparent by describing in detail the utility model in connection with the drawings and specific embodiments.
[0010] Figure 1 It is structural schematic diagram.
[0011] In the drawing, reference numerals: 1, sensor shell, 2, ionization cavity, 3, air inlet, 4, air outlet, 5, bias circuit board, 6, detection circuit board, 7, uv lamp, 8, bottom cover, 9, uv lamp circuit board, 10, outer thread, 11, inner thread, 12, sealing ring, 13, uv lamp fixing seat. DETAILED DESCRIPTION
[0012] Embodiment:
[0013] As Figure 1 , the embodiment provides a photoionization sensor, which comprises a sensor shell 1, an ionization cavity 2 is arranged in the sensor shell, neutral liquid is arranged in the ionization cavity, an air inlet 3 is arranged at one end of the ionization cavity, an air outlet 4 is arranged at the other end of the ionization cavity, a positive electrode of the ionization cavity is electrically connected with a bias circuit board 5, a negative electrode of the ionization cavity is electrically connected with a detection circuit board 6, a uv lamp 7 is arranged at the bottom of the ionization cavity, the uv lamp is movably arranged on a bottom cover 8, a uv lamp circuit board 9 is arranged in the bottom cover, and the bottom cover is movably arranged on the sensor shell. An outer thread 10 is arranged at the outer circle of the bottom of the sensor shell, and an inner thread 11 is arranged at the inner circle of the bottom cover. A sealing ring 12 is arranged in the bottom cover. A uv lamp fixing seat 13 is arranged on the bottom cover.
[0014] When the uv lamp needs to be replaced in use, the bottom cover 8 is unscrewed, the uv lamp 7 is removed, a new uv lamp is replaced, and then the uv lamp replacement is completed.
[0015] The utility model provides a kind of photoionization sensor's thought and method, the method and approach of specifically realizing this technical scheme are many, above-mentioned only is preferred implementation mode of the utility model, it should be pointed out, for the ordinary skilled in the art, on the premise of not departing from the principle of the utility model, still can make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.The components not explicitly in the embodiment can be realized by prior art.
Claims
1. An optical ion sensor, characterized by Including sensor shell (1), the sensor shell is equipped with ionization cavity (2) inside, is equipped with neutral liquid in ionization cavity, ionization cavity one end is equipped with air inlet 3 (), the other end is equipped with air outlet (4), ionization cavity positive pole electric connection bias circuit board (5), ionization cavity negative pole electric connection detection circuit board (6), ionization cavity bottom is equipped with uv lamp (7), uv lamp is movably installed on bottom cover (8), bottom cover inside is equipped with uv lamp circuit board (9), bottom cover movably installs on sensor shell.
2. The optical ion sensor according to claim 1, wherein The outer circle of the bottom of the sensor shell is provided with external threads (10), and the inner circle of the bottom cover is provided with internal threads (11).
3. The optical ion sensor of claim 1, wherein, The bottom cover is provided with a sealing ring (12) inside.
4. The optical ion sensor of claim 1, wherein, The bottom cover is provided with a uv lamp fixing seat (13).