CN219266218U

CN219266218U - Corrosion-resistant probe rod type humidity detector

Info

Publication number: CN219266218U
Application number: CN202223157887.4U
Authority: CN
Inventors: 袁振开; 郑旭平; 李堤; 林光梓
Original assignee: Zhuhai Yiao Technology Co ltd
Current assignee: Zhuhai Yiao Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-27
Anticipated expiration: 2032-11-28

Abstract

The utility model relates to the technical field of humidity detection, in particular to a corrosion-resistant probe rod type humidity detector which comprises a probe, a probe rod, an instrument box, a humidity sensor, a humidity analyzer and a temperature control device, wherein the temperature control device comprises a heater, a temperature controller and a temperature sensor, a hollow cavity is arranged in the probe, one end far away from the probe rod is provided with an air inlet communicated with the hollow cavity, the humidity sensor, the heater and the temperature sensor are fixedly arranged in the hollow cavity, the humidity analyzer and the temperature controller are arranged in the instrument box, the humidity analyzer is connected with the humidity analyzer, and the heater and the temperature sensor are respectively connected with the temperature controller. The temperature control device of the utility model heats the humidity sensor in advance to the range of the temperature of the flue gas at the installation position, and can reduce the temperature difference between the humidity sensor and the flue gas after the flue gas is introduced into the chimney, thereby preventing the generation of condensed water and avoiding the generation of corrosive condensation.

Description

Corrosion-resistant probe rod type humidity detector

Technical Field

The utility model relates to the technical field of humidity detection, in particular to a corrosion-resistant probe rod type humidity detector.

Background

The moisture content of the flue gas has great influence on the processes of desulfurization, denitration, dust removal and the like of the flue gas, and the measurement accuracy of the flue gas is directly related to the total pollutant emission amount and concentration calculation and the evaluation of the efficiency of a flue gas purification system. The probe rod type humidity detector can be used for detecting the humidity of the flue gas in the chimney, but because the probe, the probe rod and the instrument box shell of the probe rod type humidity detector are all made of metal materials, the probe structure and the front end probe rod structure are arranged inside the chimney after being installed, the rear end probe rod structure and the instrument box are arranged outside the chimney, when the humidity in the chimney is high, the temperature of the flue gas in the chimney is higher than that of the probe, condensed water is easily generated on the surface of the probe, dust and acidic substances (such as SO (SO-called) are adsorbed on the surface of the probe ₂ NO, etc.), a highly corrosive liquid is generated to corrode the probe, resulting in probe damage.

In view of the above problems, the prior art has yet to be improved and developed.

Disclosure of Invention

The utility model aims at overcoming the defects and shortcomings of the prior art, and provides a corrosion-resistant probe rod type humidity detector which is reasonable in structure and can prevent condensed water from being generated on the surface of a probe.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the corrosion-resistant probe rod type humidity detector comprises a probe, a probe rod and an instrument box, one end of the probe rod is fixedly connected with the probe, the other end of the probe rod is fixedly connected with the instrument box, the corrosion-resistant probe rod type humidity detector is characterized by further comprising a humidity sensor, a humidity analyzer and a temperature control device, the temperature control device comprises a heater, a temperature controller and a temperature sensor, a hollow cavity is arranged in the probe, an air inlet communicated with the hollow cavity is arranged at one end, far away from the probe rod, of the probe rod, the humidity sensor, the heater and the temperature sensor are fixedly arranged in the hollow cavity, the humidity analyzer and the temperature controller are arranged in the instrument box, the humidity sensor is electrically connected with the humidity analyzer, the heater and the temperature sensor are respectively electrically connected with the temperature controller, the humidity analyzer is used for receiving and analyzing detection signals of the humidity sensor, and the temperature controller is controlled to work according to temperature signals detected by the preset temperature and the temperature sensor.

According to the scheme, the probe rod sleeve is provided with the mounting plate, the mounting plate is welded on the probe rod, and the mounting plate is provided with a plurality of mounting holes.

According to the scheme, the probe rod is of a tubular structure, and the connecting wires of the humidity sensor and the humidity analyzer and the connecting wires of the heater, the temperature sensor and the temperature controller are all wired from the inner cavity of the probe rod.

According to the scheme, the instrument box is provided with a wiring terminal.

According to the scheme, one end of the probe rod is in threaded connection with the probe, and the other end of the probe rod is welded with the instrument box.

According to the scheme, the air inlet is provided with the filter head, and the filter head is used for filtering dust in the flue gas.

Before the corrosion-resistant probe rod type humidity detector is installed, the temperature interval value of the flue gas at the installation position is measured and recorded in advance through the detection installation hole on the chimney wall, then the humidity detector is fixed on the chimney wall through the installation plate, the probe is arranged in the chimney, the instrument box is arranged outside the chimney, the pre-measured temperature interval value is arranged in the temperature controller, when the flue gas humidity is actually measured, the heater and the temperature sensor of the temperature control device are matched with each other to heat the humidity sensor to the flue gas temperature interval value at the installation position in advance, the temperature difference between the humidity sensor and the flue gas can be reduced after the flue gas is introduced into the chimney, the generation of condensed water is prevented, the generation of corrosive condensation is avoided, and the probe can be effectively protected from being corroded.

Drawings

FIG. 1 is a simplified structural schematic diagram of the present utility model;

FIG. 2 is a schematic structural view of a probe;

fig. 3 is a schematic structural view of the instrument canister.

In the figure: 1. a probe; 2. a probe rod; 3. an instrument box; 4. a humidity sensor; 5. a moisture analyzer; 6. a heater; 7. a temperature controller; 8. a mounting plate; 9. a mounting hole; 10. a connection terminal; 11. and a power switch.

Detailed Description

The technical scheme of the utility model is described below with reference to the accompanying drawings and examples.

As shown in fig. 1-3, a corrosion-resistant probe rod type humidity detector comprises a probe 1, a probe rod 2 and an instrument box 3, one end of the probe rod 2 is fixedly connected with the probe 1, the other end of the probe rod 2 is fixedly connected with the instrument box 3, and the corrosion-resistant probe rod type humidity detector is characterized by further comprising a humidity sensor 4, a humidity analyzer 5 and a temperature control device, the temperature control device comprises a heater 6, a temperature controller 7 and a temperature sensor, a hollow cavity is arranged in the probe 2, one end far away from the probe rod 2 is provided with an air inlet communicated with the hollow cavity, the humidity sensor 4, the heater 6 and the temperature sensor (not shown in the drawing) are fixedly installed in the hollow cavity, the humidity analyzer 5 and the temperature controller 7 are all arranged in the instrument box 3, the humidity sensor 4 is electrically connected with the humidity analyzer 5, the heater 6 and the temperature sensor are respectively electrically connected with the temperature controller 7, the humidity analyzer 5 is used for receiving and analyzing detection signals of the humidity sensor 4, the temperature controller 7 is arranged in the preset temperature sensor 7 and the preset temperature sensor 6 and the temperature sensor 7 is arranged in the hollow cavity according to a preset temperature sensor 6, and the preset temperature sensor is used for transmitting temperature measurement signals to the temperature sensor 6, namely, and the temperature sensor is arranged in the hollow cavity is used for transmitting temperature measurement signals to the temperature measurement signals. Before the utility model is installed, the temperature interval value of the flue gas at the installation position is measured and recorded in advance through the detection installation hole on the chimney wall, the humidity detector is fixed on the chimney wall through the installation plate 8 during installation, the probe 1 is arranged in the chimney, the instrument box 3 is arranged outside the chimney, and the temperature interval value measured in advance is arranged in the temperature controller. When actually measuring the flue gas humidity, temperature control device's heater 6 and temperature sensor mutually support in advance and heat humidity transducer 4 to the flue gas temperature interval value of mounted position in, can reduce the difference in temperature between humidity transducer and the flue gas after the chimney lets in the flue gas, prevent the production of comdenstion water, avoid corrosivity condensation to produce, can effectually protect the probe not corroded. If the utility model needs long-term online measurement, the temperature control device can perform constant temperature control on the temperature of the probe 1, thereby ensuring that the temperature of the probe 1 is equivalent to the temperature of flue gas during working and preventing the generation of condensed water.

The probe rod 2 is sleeved with a mounting plate 8, the mounting plate 8 is welded on the probe rod 2, the mounting plate 8 is provided with a plurality of mounting holes 9, and the mounting plate 8 can be a mounting flange matched with the probe rod 2.

The probe rod 2 is of a tubular structure, and the connecting wires of the humidity sensor 4 and the humidity analyzer 5 and the connecting wires of the heater 6 and the temperature sensor and the temperature controller 7 are all wired from the inner cavity of the probe rod 2.

The instrument box 3 is provided with the wiring terminal 10, and by adopting the arrangement, the convenience of assembly of the utility model can be improved, and meanwhile, the instrument box 3 is also provided with the power switch 11.

One end of the probe rod 2 is in threaded connection with the probe 1, the other end of the probe rod 2 is welded with the instrument box 3, and the arrangement is convenient for connecting with the probe rod 2 after the inner parts of the probe 1 are assembled, so that the assembly of the instrument box is facilitated, and the instrument box 3 is fixed in a welding mode, so that the firmness of the instrument box is improved.

The air inlet is provided with the filter head, the filter head is used for filtering dust in flue gas, and the adoption of the arrangement can reduce dust accumulation of the inner part of the probe 1 and improve the detection accuracy of the humidity sensor.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. The utility model provides a corrosion-resistant probe rod type humidity detector, includes probe (1), probe rod (2) and instrument box (3), probe rod (2) one end with probe (1) fixed connection, the other end and instrument box (3) fixed connection, its characterized in that still includes humidity transducer (4), humidity analyzer (5) and temperature control device, temperature control device includes heater (6), temperature controller (7) and temperature sensor, be equipped with hollow cavity in probe (1), and keep away from the one end of probe rod (2) be equipped with the air inlet of hollow cavity intercommunication, humidity transducer (4), heater (6) and temperature sensor all fixed mounting in the hollow cavity, humidity analyzer (5) and temperature controller (7) all are located in instrument box (3), humidity transducer (4) with humidity analyzer (5) electric connection, heater (6) and temperature sensor respectively with temperature controller (7) electric connection, humidity analyzer (5) and temperature sensor (6) are used for receiving humidity analyzer (4) temperature signal detection (7) temperature sensor's temperature sensor (6) temperature detector.

2. The corrosion-resistant probe rod type humidity detector according to claim 1, wherein the probe rod (2) is sleeved with a mounting plate (8), the mounting plate (8) is welded on the probe rod (2), and the mounting plate (8) is provided with a plurality of mounting holes (9).

3. The corrosion-resistant probe rod type humidity detector according to claim 1, wherein the probe rod (2) is of a tubular structure, and the connecting wires of the humidity sensor (4) and the humidity analyzer (5) and the connecting wires of the heater (6) and the temperature sensor and the temperature controller (7) are all wired from the inner cavity of the probe rod (2).

4. Corrosion resistant probe rod type wetness detector as in claim 1, characterized in that the meter box (3) is provided with a connection terminal (10).

5. A corrosion resistant probe rod type wetness detector as set forth in claim 3 wherein said probe rod (2) is threaded at one end to said probe head (1) and welded at the other end to said instrument pod (3).

6. The corrosion resistant probe rod type moisture meter of claim 1, wherein the air inlet is provided with a filter head for filtering dust in the flue gas.