CN212483062U

CN212483062U - Light explosion-proof sampling device with internal heating

Info

Publication number: CN212483062U
Application number: CN202021408969.XU
Authority: CN
Inventors: 徐洋; 谷文松; 陈生龙
Original assignee: Nanjing Kangce Automation Equipment Co ltd
Current assignee: Nanjing Kangce Automation Equipment Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-05
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to the technical field of flue gas sampling, in particular to an internal heating light explosion-proof sampling device, which comprises a flue and a sampling device main body arranged on one side outside the flue; the sampling device comprises a sampling device body, a protective shell, a sampling tube, a sampling cavity and a welding flange, wherein the protective shell is sleeved outside the sampling device body, one side of the protective shell, which is close to a flue, is provided with the sampling tube, one end of the sampling tube, which is far away from the protective shell, is arranged inside the flue, the other end of the sampling tube is communicated with the sampling cavity, and the sampling tube is connected with the protective; a filter is arranged in the sampling cavity, an air inlet of the filter is communicated with an air outlet of the sampling tube, a heater is arranged in the filter, and a heater protective shell is sleeved outside the heater; the sampling tube comprises a fixed sampling tube and a lengthened sampling tube which are connected in a threaded manner. The utility model discloses a built-in heater of filter improves the filter temperature, reduces the corruption and the jam to the filter, and not with external environment direct contact, the explosion-proof performance is superior.

Description

Light explosion-proof sampling device with internal heating

Technical Field

The utility model relates to a flue gas sampling technical field specifically is an explosion-proof sampling device of light and handy type of internal heating.

Background

In the process of sampling the flue gas, the flue gas humidity is higher, and even liquid water mist is often mixed. The existing sampling device (as shown in figure 1) is characterized in that a heater is arranged on the outer wall of a cavity, and heat is transferred to a probe filter by heating the outer wall of the cavity, the indirect heating mode is large in heat loss, often, when the temperature of the heater is 120 ℃, the actual surface temperature of the filter is still lower, liquid water cannot be gasified in time, water vapor is attached to the surface of the filter and mixed with impurities such as dust, dirt, corrosive gas and the like on the surface of the filter to form a corrosive viscous mixed substance, the filter is easy to block and corrode, a pipeline is blocked, the system sampling fails, even a sampling pump is overloaded and damaged due to the fact that a gas circuit is blocked, the maintenance period is short, and the labor cost is high. The heater is large in size, the sampling probe is heavy and integral, the sampling probe is mounted on a chimney made of plastic, a support frame needs to be welded independently to fix the probe, construction is inconvenient, and labor and material costs are high; the heater is in direct contact with ambient air, so that heat loss is large, heat preservation treatment needs to be additionally carried out on the shell of the probe, and the structure is complex; the heater body is directly arranged in the ambient air and cannot be used in the situation that explosive gas possibly exists in the ambient air; most sampling tubes are of an integrated structure, cannot be disassembled, and are poor in practicability and flexibility; therefore, there is a need for an improved sampling device that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof sampling device of light and handy type of internal heating to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an internal heating light explosion-proof sampling device comprises a flue and a sampling device main body arranged on one side outside the flue; a protective shell is sleeved outside the sampling device main body, a sampling tube is arranged on one side of the protective shell close to the flue, one end of the sampling tube, far away from the protective shell, is arranged inside the flue, and the other end of the sampling tube is communicated with the sampling cavity; the sampling tube is connected with the protective shell through a welding flange; a filter is arranged in the sampling cavity, an air inlet of the filter is communicated with an air outlet of the sampling tube, a heater is arranged in the filter, and a heater protective shell is sleeved outside the heater; a sample gas outlet is formed in one side of the bottom of the filter and communicated with a heat tracing pipe; the sampling tube comprises a fixed sampling tube and a lengthened sampling tube which are connected in a threaded manner.

Preferably, the one end that welding flange was kept away from to fixed sampling tube is provided with first external screw thread connecting portion, and the one end that fixed sampling tube was close to extension sampling tube is provided with female connection portion, and the one end that fixed sampling tube was kept away from to extension sampling tube is provided with second external screw thread connecting portion, and female connection portion's outside cover is equipped with the sealing lantern ring.

Preferably, the outer ring of the sealing collar and the outer rings of the elongated sampling tube and the fixed sampling tube are maintained on the same horizontal line.

Preferably, the sealing lantern ring comprises an upper lantern ring and a lower lantern ring, the end parts of the upper lantern ring and the lower lantern ring are respectively provided with an insertion block and an insertion groove, and the upper lantern ring and the lower lantern ring are mounted on the internal thread connecting part through sinking bolts.

Preferably, the inner rings of the upper lantern ring and the lower lantern ring are provided with anti-skid protrusions, and the internal thread connecting portion is provided with anti-skid grooves matched with the anti-skid protrusions in structure.

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

1. the utility model discloses an at the inside built-in heater of filter, improve the filter temperature, reduce liquid water and in the attached to of filter surface, carry out gasification treatment, prevent the formation of corrosive substance, reduce the corruption and the jam to sampling probe, filter, and the heater is small, and the quality is light, arranges stainless steel in the heater protective housing, not with external environment direct contact, is applicable to the occasion that probably has explosive gas in the ambient air, and the explosion-proof performance is superior.

2. The utility model discloses the sampling tube that sets up mainly comprises fixed sampling tube and extension sampling tube, connects for detachable connected mode between fixed sampling tube and the extension sampling tube, and the dismouting is simple and convenient, and the equipment is nimble, can alternate the length of sampling tube according to actual sampling demand, and practicality and flexibility are stronger.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a conventional sampling device;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the sampling tube of the present invention;

fig. 4 is a schematic view of the specific structure of the sealing collar of the present invention.

In the figure: 1. a flue; 2. a sampling device body; 3. a protective housing; 4. a sampling tube; 5. a sampling cavity; 6. welding a flange; 7. a heater; 8. a heater protection case; 9. a filter; 10. a sample gas outlet; 11. a heat tracing pipe; 12. fixing the sampling tube; 13. lengthening the sampling tube; 14. a first externally threaded connecting portion; 15. an internal threaded connection; 16. a second external thread connection; 17. a sealing collar; 18. an upper collar; 19. a lower collar; 20. an insertion block; 21. anti-skid projections; 22. an anti-slip groove; 23. and (4) inserting grooves.

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 should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: an internal heating light explosion-proof sampling device comprises a flue 1 and a sampling device main body 2 arranged on one side outside the flue 1; a protective shell 3 is sleeved outside the sampling device main body 2, a sampling tube 4 is arranged on one side of the protective shell 3 close to the flue 1, one end of the sampling tube 4 far away from the protective shell 3 is arranged inside the flue 1, and the other end of the sampling tube 4 is communicated with a sampling cavity 5; the sampling tube 4 is connected with the protective shell 3 through a welding flange 6; a filter 9 is arranged in the sampling cavity 5, an air inlet of the filter 9 is communicated with an air outlet of the sampling tube 4, a heater 7 is arranged in the filter 9, and a heater protective shell 8 is sleeved outside the heater 7; a sample gas outlet 10 is arranged on one side of the bottom of the filter 9, and the sample gas outlet 10 is communicated with a heat tracing pipe 11; sampling tube 4 comprises a fixed sampling tube 12 and an elongated sampling tube 13 which are threaded.

Further, the one end that welding flange 6 was kept away from to fixed sampling tube 12 is provided with first external threaded connection portion 14, and the one end that extension sampling tube 13 is close to fixed sampling tube 12 is provided with internal threaded connection portion 15, and the one end that extension sampling tube 13 was kept away from fixed sampling tube 12 is provided with second external threaded connection portion 16, and the outside cover of internal threaded connection portion 15 is equipped with sealing collar 17.

Further, the outer ring of the sealing collar 17 and the outer rings of the elongated sampling tube 13 and the fixed sampling tube 12 are maintained on the same horizontal line.

Further, the sealing collar 17 includes an upper collar 18 and a lower collar 19, ends of the upper collar 18 and the lower collar 19 are respectively provided with an insertion block 20 and an insertion groove 23, and the upper collar 18 and the lower collar 19 are mounted on the internal thread connection portion 15 by a sunk bolt.

Furthermore, the inner rings of the upper sleeve ring 18 and the lower sleeve ring 19 are both provided with anti-skid protrusions 21, and the internal thread connecting part 15 is provided with anti-skid grooves 22 matched with the anti-skid protrusions 21 in structure.

The working principle is as follows: before the sampling device is used, an operator can firstly assemble the sampling tube 4 according to the actual sampling requirement; firstly place extension sampling tube 13 at the tip of fixed sampling tube 12 with the hand, then with the rotatory fixed sampling tube 12 of hand, make fixed sampling tube 12 and extension sampling tube 13 pass through first external screw thread connecting portion 14, internal thread connecting portion 15 threaded connection, the outside of threaded connection portion 15 including placing that will go up lantern ring 18 and lower lantern ring 19 respectively with the hand respectively, make the corresponding anti-skidding recess 22 of inserting of non-skid stud 21, and simultaneously, grafting piece 20 inserts in inserting groove 23, fix the outside at internal thread connecting portion 15 with upper lantern ring 18 and lower lantern ring 19 with the bolt after that, accomplish the equipment to sampling tube 4.

When this sampling device uses, heat filter 9 through the built-in heater 7 of filter 9, reduce the attached to of liquid water on filter 9 surface, carry out gasification treatment, prevent corrosive substance's formation, reduce the corruption and the jam to sampling probe, filter 9, and heater 7 is less, and the quality is light, arranges stainless steel's heater protective housing 8 in, does not have direct contact with the external environment, is applicable to the occasion that probably has explosive gas in the ambient air, and the explosion-proof performance is superior.

It is worth noting that: the whole device realizes control over the device through the controller, and because the equipment matched with the controller is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof sampling device of light and handy type of internal heating which characterized in that: comprises a flue (1) and a sampling device main body (2) arranged on one side of the outside of the flue (1); a protective shell (3) is sleeved outside the sampling device main body (2), a sampling tube (4) is arranged on one side, close to the flue (1), of the protective shell (3), one end, far away from the protective shell (3), of the sampling tube (4) is arranged inside the flue (1), and the other end of the sampling tube (4) is communicated with a sampling cavity (5); the sampling tube (4) is connected with the protective shell (3) through a welding flange (6); a filter (9) is arranged in the sampling cavity (5), an air inlet of the filter (9) is communicated with an air outlet of the sampling tube (4), a heater (7) is arranged in the filter (9), and a heater protective shell (8) is sleeved outside the heater (7); a sample gas outlet (10) is formed in one side of the bottom of the filter (9), and the sample gas outlet (10) is communicated with a heat tracing pipe (11); the sampling tube (4) comprises a fixed sampling tube (12) and a lengthened sampling tube (13) which are connected in a threaded manner.

2. An internally heated lightweight explosion-proof sampling device as set forth in claim 1, wherein: the one end that welding flange (6) were kept away from in fixed sampling tube (12) is provided with first external screw thread connecting portion (14), and the one end that fixed sampling tube (12) were close to in extension sampling tube (13) is provided with internal thread connecting portion (15), and the one end that fixed sampling tube (12) were kept away from in extension sampling tube (13) is provided with second external screw thread connecting portion (16), and the outside cover of internal thread connecting portion (15) is equipped with sealed lantern ring (17).

3. An internally heated lightweight explosion-proof sampling device as set forth in claim 2, wherein: the outer ring of the sealing collar (17) and the outer rings of the lengthened sampling tube (13) and the fixed sampling tube (12) are kept on the same horizontal line.

4. An internally heated lightweight explosion-proof sampling device as set forth in claim 2, wherein: the sealing lantern ring (17) comprises an upper lantern ring (18) and a lower lantern ring (19), the end parts of the upper lantern ring (18) and the lower lantern ring (19) are respectively provided with an insertion block (20) and an insertion groove (23), and the upper lantern ring (18) and the lower lantern ring (19) are installed on the internal thread connecting part (15) through sinking bolts.

5. An internally heated lightweight explosion-proof sampling device as set forth in claim 4, wherein: the inner rings of the upper lantern ring (18) and the lower lantern ring (19) are provided with anti-skid protrusions (21), and the internal thread connecting part (15) is provided with anti-skid grooves (22) matched with the anti-skid protrusions (21).