CN211982170U - Volatile organic compounds sampling probe heating device - Google Patents

Abstract

The utility model relates to a sampling probe technical field specifically is a volatile organic compounds sampling probe heating device, including the probe body, be equipped with the heater wire on the probe body, the heater wire is woven through many glass fiber ropes that set up and is formed, glass fiber rope is woven the heater wire and is heated with probe body direct contact, the small power dissipation, it is effectual to heat, glass fiber rope line footpath is little, toughness is good, and is fixed convenient, the dismouting of being convenient for, maintenance duration is short, and simultaneously, the heater wire is the heliciform winding on the probe body, the heater wire does not produce relatively poorly at winding in-process, be equipped with on the probe body and be used for the thermal-insulated lagging casing that keeps warm, and lagging casing cup joints the cooperation with the probe body. This volatile organic compounds sampling probe heating device glass fiber rope weaves's heater wire heats with probe body direct contact, and the consumption is little not fragile, heats and keeps warm effectually, the dismouting and the maintenance of being convenient for.

Description

Volatile organic compounds sampling probe heating device

Technical Field

The utility model relates to a sampling probe technical field specifically is a volatile organic compounds sampling probe heating device.

Background

The volatile organic compound sampling probe is a key condition that the volatile organic compound on-line monitoring system can work normally, and the volatile organic compound sampling probe has the functions of heating, heat preservation and back flushing purification. The heating should be uniform and stable, and the heating temperature should be kept above 120 deg.C, or 20 deg.C higher than the flue gas temperature. Volatile organic compounds are generally sampled under high-temperature, dusty and high-humidity conditions, so that the heating function of the volatile organic compounds sampling probe must be capable of safely and stably heating for a long time under the severe working condition, and the influence of moisture condensation on measurement is avoided.

At present, the heating methods of the volatile organic compound sampling probes on the market have various defects, the heating rod heats the probes, the aluminum block conducts heat to the cavity of the sampling probe, and the sampling probe is high in power and easy to damage; the heating ring heats the probe and can directly contact the sampling cavity to conduct heat transfer and temperature rise, and the fixed heating pipe has large workload of disassembly and inconvenient maintenance; the heat tracing band heats the probe and can contact the sampling cavity to conduct heat transfer and temperature rise, and the heat tracing band is large in hardness and poor in toughness, so that the heat tracing band is inconvenient to produce and assemble. In view of this, we propose a heating device for a sampling probe of volatile organic compounds.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a volatile organic compounds sampling probe heating device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a volatile organic compounds sampling probe heating device, includes the probe body, be equipped with the heater wire on the probe body, just the heater wire is the heliciform winding and is in on the probe body, be equipped with on the probe body and be used for the thermal-insulated lagging casing that keeps warm, just the lagging casing with the cooperation is cup jointed to the probe body.

Preferably, the heating wire is formed by weaving a plurality of glass fiber ropes.

Preferably, both ends of the heating wire are respectively provided with a first terminal and a second terminal, and the first terminal and the second terminal both extend to the outer side of the probe body.

Preferably, the top end of the probe body is provided with a tray, and the probe body is fixedly installed on the tray.

Preferably, the lower surface of the tray is provided with a plurality of supporting feet.

Preferably, the inner wall of the heat-insulating shell is provided with an asbestos layer, and the inner wall of the asbestos layer is fixedly connected with a heat-conducting fin.

Preferably, a heat storage layer is arranged between the asbestos layer and the heat conducting fin.

Preferably, the heat conducting sheet is provided with a plurality of protrusions which are annularly arranged at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this volatile organic compounds sampling probe heating device, the heater wire that glass fiber rope woven passes through spiral winding's mode to be fixed at the probe body, and utilize external power supply to carry out the power supply heating, the heater wire transmits the temperature to the probe body after generating heat, rethread lagging casing keeps warm, guarantee that volatile organic compounds gets into the probe body after the temperature more than 120 ℃, the heater wire that glass fiber rope woven heats with probe body direct contact, the consumption is little not fragile, it is effectual to heat, glass fiber rope line footpath is little, toughness is good, and is fixed convenient, the dismouting of being convenient for, the maintenance duration is short.

2. This volatile organic compounds sampling probe heating device, the asbestos layer that the inner wall of lagging casing set up has good heat preservation and thermal-insulated effect, avoids the heat loss of the production after the heater wire circular telegram, and foam's heat accumulation layer is used for having good heat accumulation and heat preservation effect, and the conducting strip can improve heat conduction efficiency to in time absorb the heat of the production after the heater wire circular telegram, and store in asbestos layer and heat accumulation layer, improve lagging casing's heat preservation effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic cross-sectional structure view of a heating wire according to the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1. a probe body; 11. a tray; 12. supporting legs; 2. a heating wire; 21. a glass fiber rope; 22. a first terminal; 23. a second terminal; 3. a heat-insulating shell; 31. an asbestos layer; 311. a heat storage layer; 32. a heat conductive sheet; 321. and (4) protruding.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" and "a plurality" mean two or more unless specifically limited otherwise.

Example 1

The utility model provides a volatile organic compounds sampling probe heating device, as shown in figure 1 and figure 2, including probe body 1, be equipped with heater wire 2 on probe body 1, heater wire 2 is woven through many glass fiber ropes 21 that set up and is formed, glass fiber rope 21 is woven heater wire 2 and is heated with probe body 1 direct contact, the low power consumption, it is effectual to heat, glass fiber rope 21 line footpath is little, toughness is good, it is fixed convenient, the dismouting of being convenient for, short maintenance time, simultaneously, heater wire 2 is the heliciform winding on probe body 1, heater wire 2 does not produce poorly at the winding in-process, and reserve the interval that is not less than 3mm between two adjacent heater wire 2, be equipped with on the probe body 1 and be used for heat preservation heat-insulating lagging casing 3, and heat preserving casing 3 cup joints the cooperation with probe body 1.

In this embodiment, the heating wire 2 has a diameter of preferably 3 ± 0.2mm, a resistance of preferably 32 Ω/M ± 5%, and a length of preferably 1M, and is electrically heated using DC 24V.

Further, the both ends of heater wire 2 are equipped with first wiring end 22 and second wiring end 23 respectively, and first wiring end 22 and second wiring end 23 all extend to the probe body 1 outside, be convenient for utilize first wiring end 22 and second wiring end 23 to connect the positive negative pole of external DC24V power and supply power, give off heat behind the heater wire 2 power supply that glass fiber rope 21 weaves, heat transfer is to probe body 1, guarantee that volatile organic compounds gets into probe body 1 after the temperature rises to be more than 120 ℃, avoid the moisture condensation.

Besides, the top end of the probe body 1 is provided with the tray 11, the probe body 1 is fixedly installed on the tray 11, and the probe body 1 is installed on the tray 11 in a bolt fixing mode, so that the probe body 1 can be conveniently disassembled, assembled and maintained.

It should be noted that the lower surface of the tray 11 is provided with a plurality of supporting legs 12, which is convenient for supporting the tray 11 by the supporting legs 12 and preventing the tray 11 from being wetted.

In this embodiment, the heating wire 2 woven by the glass fiber rope 21 is fixed on the probe body 1 in a spiral winding manner, the first wiring terminal 22 and the second wiring terminal 23 are used for supplying power to the positive electrode and the negative electrode of the heating wire 2 connected with an external DC24V power supply, the heating wire 2 generates heat to transmit the temperature to the probe body 1, the heat preservation shell 3 is arranged outside the probe body 1 for heat preservation, the temperature is above 120 ℃ after the volatile organic compound enters the probe body 1, the heating wire 2 woven by the glass fiber rope 21 is in direct contact with the probe body 1 for heating, the power consumption is small, the heating effect is good, the wire diameter of the glass fiber rope 21 is small, the toughness is good, the fixing is convenient, the dismounting and the maintenance time is short.

Example 2

As shown in fig. 3, the inner wall of the heat insulating housing 3 is provided with an asbestos layer 31, the inner wall of the asbestos layer 31 is fixedly connected with a heat conducting fin 32, a heat storage layer 311 is arranged between the asbestos layer 31 and the heat conducting fin 32 and used for storing heat generated after the heating wire 2 is electrified, the heat conducting fin 32 is provided with a plurality of protrusions 321 which are arranged in an annular and equidistant mode, and the protrusions 321 can increase the contact area between the heat conducting fin 32 and air and improve the heat conducting efficiency.

It should be noted that the heat storage layer 311 is filled between the asbestos layer 31 and the heat conducting sheet 32 with a foam material, and the foam material has good heat storage and heat preservation effects.

Specifically, the heat conducting fin 32 is made of a copper material, which has a good heat conducting effect, can absorb heat generated by the heating wire 2 after being electrified in time, and stores the heat in the asbestos layer 31 and the heat storage layer 311.

In this embodiment, asbestos layer 31 that the inner wall of lagging casing 3 set up has good heat preservation and thermal-insulated effect, the heat loss of the production after avoiding the 2 circular telegrams of heater wire, and prevent the heat in the outside air cooling lagging casing 3, fixedly connected with conducting strip 32 on asbestos layer 31's the inner wall, be equipped with heat accumulation layer 311 between asbestos layer 31 and the conducting strip 32, foam's heat accumulation layer 311 is used for having good heat accumulation and heat preservation effect, be equipped with a plurality of archs 321 that are the equidistant range of annular on the conducting strip 32, protruding 321 can increase the area of contact of conducting strip 32 with the air, heat conduction efficiency is improved, and in time absorb the heat of the production after 2 circular telegrams of heater wire, and store in asbestos layer 31 and heat accumulation layer 311, improve lagging casing 3's heat preservation effect.

When the heating device for the volatile organic compound sampling probe is used, the heating wire 2 woven by the glass fiber rope 21 is fixed on the probe body 1 in a spiral winding mode, the first wiring end 22 and the second wiring end 23 are utilized to connect the heating wire 2 with the positive and negative electrodes of an external DC24V power supply for supplying power, the heating wire 2 generates heat to transmit the temperature to the probe body 1, the heat preservation shell 3 is arranged outside the probe body 1 for preserving the heat, the temperature is above 120 ℃ after the volatile organic compound enters the probe body 1, the heating wire 2 woven by the glass fiber rope 21 is directly contacted with the probe body 1 for heating, the power consumption is small, the heating effect is good, the wire diameter of the glass fiber rope 21 is small, the toughness is good, the fixing is convenient, the dismounting is convenient, the maintenance time is short, in addition, the asbestos layer 31 arranged on the inner wall of the heat preservation shell 3 has good heat preservation and heat insulation effects, the heat loss generated after the heating wire, and prevent the heat in the outside air cooling lagging casing 3, fixedly connected with conducting strip 32 on the inner wall of asbestos layer 31, be equipped with heat accumulation layer 311 between asbestos layer 31 and the conducting strip 32, foam's heat accumulation layer 311 is used for having good heat accumulation and heat preservation effect, be equipped with a plurality of archs 321 that are the equidistant range of annular on the conducting strip 32, protruding 321 can increase the area of contact of conducting strip 32 with the air, improve heat conduction efficiency, and in time absorb the heat of the production after 2 circular telegrams of heater wire, and store in asbestos layer 31 and heat accumulation layer 311, improve lagging casing 3's heat preservation effect, and be convenient for popularize and promote.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a volatile organic compounds sampling probe heating device, includes probe body (1), its characterized in that: be equipped with heater wire (2) on probe body (1), just heater wire (2) are the heliciform winding and are in on probe body (1), be equipped with on probe body (1) and be used for heat preservation thermal-insulated lagging casing (3), just lagging casing (3) with probe body (1) cup joints the cooperation.

2. The voc sampling probe heating apparatus of claim 1, wherein: the heating wire (2) is formed by weaving a plurality of glass fiber ropes (21).

3. The voc sampling probe heating apparatus of claim 1, wherein: the two ends of the heating wire (2) are respectively provided with a first wiring end (22) and a second wiring end (23), and the first wiring end (22) and the second wiring end (23) extend to the outer side of the probe body (1).

4. The voc sampling probe heating apparatus of claim 1, wherein: the probe is characterized in that a tray (11) is arranged at the top end of the probe body (1), and the probe body (1) is fixedly installed on the tray (11).

5. The voc sampling probe heating apparatus of claim 4, wherein: the lower surface of the tray (11) is provided with a plurality of supporting legs (12).

6. The voc sampling probe heating apparatus of claim 1, wherein: be equipped with asbestos layer (31) on the inner wall of lagging casing (3), fixedly connected with conducting strip (32) on the inner wall of asbestos layer (31).

7. The voc sampling probe heating apparatus of claim 6, wherein: and a heat storage layer (311) is arranged between the asbestos layer (31) and the heat conducting fin (32).

8. The voc sampling probe heating apparatus of claim 6, wherein: the heat conducting fin (32) is provided with a plurality of protrusions (321) which are annularly arranged at equal intervals.

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