Flue gas sampling device

Abstract

The flue gas sampling device comprises a supporting rod, a gas collecting unit is arranged on the supporting rod, the gas collecting unit comprises a gas collecting shade, and the gas collecting shade is a horn mouth shade; a gas cooling channel is arranged at the rear part of the gas collection shade; a heat exchange medium is arranged in the gas cooling channel; and a detector clamping device is arranged at the rear part of the gas cooling channel. The device is simple in structure, low in manufacturing cost and convenient to maintain, solves the problems that handheld gas detection equipment in the prior art is not suitable for high temperature and cannot detect hot flue gas on site, realizes quick sampling and cooling of the hot flue gas, and provides necessary guarantee for the detection accuracy of harmful substances in the flue gas.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring, and in particular to a flue gas sampling device. Background Technology

[0002] Environmental monitoring is a crucial part of environmental protection projects. With the advancement of science and technology, handheld toxic gas detection devices can now obtain detection results on-site, greatly improving detection efficiency and reducing the possibility of fraud.

[0003] However, this type of equipment has an applicable temperature range, generally between -20°C and +50°C. Flue gas is characterized by high temperatures, and when using this equipment for on-site testing, inaccurate readings are often caused by excessively high temperatures. Frequent testing outside its applicable temperature range can also damage the equipment. Currently, there is no corresponding solution to address these issues. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a flue gas sampling device that is simple in structure, can collect and sample hot flue gas, cools the hot flue gas during the sampling process to make it suitable for the applicable temperature of the gas detector, and is easy to use.

[0005] The equipment includes a support rod, which serves as the gripping base for the equipment and also as the assembly base for the equipment.

[0006] An air collection unit is provided on the support rod, and the air collection unit includes an air collection shield, which is a flared shield.

[0007] A gas cooling channel is provided at the rear of the gas collecting shield, and a heat exchange medium is provided in the gas cooling channel.

[0008] A detector clamping device is provided at the rear of the gas cooling channel.

[0009] The effect achieved is that the exhaust gas is collected by the gas collection shield, the hot exhaust gas is cooled by the cooling channel and blown towards the detector probe position fixed by the clamping device, so as to realize the real-time detection of exhaust gas emissions.

[0010] The beneficial effects of this utility model are: the utility model has a simple structure, low cost and easy maintenance, and solves the problem that handheld gas detection devices in the prior art are not suitable for high temperatures and cannot detect hot flue gas on site. It realizes rapid sampling and cooling of hot flue gas, and provides necessary guarantee for the accuracy of detection of harmful substances in flue gas. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a flue gas sampling device according to the present invention;

[0012] Figure 2 Based on Figure 1 Direction, schematic diagram of the cross-sectional structure of the gas cooling channel;

[0013] Figure 3 Based on Figure 1 Direction, AA cross-sectional structure diagram, also based on Figure 1 The direction is the main viewing direction, and the view is a partial cross-section from the right-hand perspective;

[0014] Figure label:

[0015] 1-Gas collection shield 2-Gas cooling channel 3-Support rod 4-Detector clamping device

[0016] 21-Media storage sleeve 22-Air supply coil 23-Plunger

[0017] 41-Storage box 42-Spring 43-Push plate 44-Elastic pressure block

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] Reference Figure 1 , Figure 2 The flue gas sampling device of this utility model includes a support rod 3, which is the holding base of the device and also the assembly base of the device.

[0020] An air collection unit is provided on the support rod 3. The air collection unit includes an air collection shield 1, which is a flared shield.

[0021] A gas cooling channel 2 is provided at the rear of the gas collecting shield 1, and a heat exchange medium is provided in the gas cooling channel 2.

[0022] A detector clamping device 4 is provided at the rear of the gas cooling channel 2.

[0023] The effect achieved is that the exhaust gas is collected by the gas collection shield 1, the hot exhaust gas is cooled by the cooling channel and blown towards the detector probe position fixed by the clamping device, so as to realize the real-time detection of exhaust gas emissions.

[0024] In Example 1, the support rod 3 is a tube-sleeve structure, including an inner sleeve and an outer sleeve, and a spring pin 42 or a positioning bolt is provided between the outer sleeve and the inner sleeve.

[0025] A grip handle is provided at the end of the support rod 3, and an anti-slip rubber sleeve is provided on the grip handle.

[0026] This makes it easy for users to hold, raise, or extend the device for testing.

[0027] Example 2, refer to the accompanying drawings in the specification. Figure 2 The gas cooling channel 2 is configured in the following manner:

[0028] The gas collection shield 1 is connected to the air supply coil 22. A medium storage sleeve 21 is fitted on the outer wall of the air supply coil 22. The air supply coil 22 extends through the medium storage sleeve 21 and is sealed to the medium storage sleeve 21. A heat exchange medium is provided between the air supply coil 22 and the medium storage sleeve 21.

[0029] The medium storage sleeve 21 is provided with a heat exchange medium injection port, and a plunger 23 is inserted and removed from the main inlet of the heat exchange medium.

[0030] Preferably, the heat exchange medium is ice water.

[0031] Preferably, the air supply coil 22 is a smoothly curved coil with a diameter not exceeding one-tenth of the outer diameter of the gas collection shield 1, thereby ensuring that the detection gas passes smoothly through the gas cooling channel 2.

[0032] Example 3, refer to the accompanying drawings in the specification. Figure 3 The detector clamping device 4 is configured in the following manner:

[0033] An assembly platform is provided on the support rod 3, and a storage box 41 is provided on the assembly platform. The storage box 41 is a box with an open top. A push plate 43 is hinged to the side wall of the storage box 41, and a spring 42 is provided between the push plate 43 and the inner surface of the storage box 41.

[0034] An elastic pressure block 44 is provided on the inner wall of the storage box 41 on the opposite side of the push plate 43.

[0035] The effect achieved is that the detector is directly inserted into the gap between the elastic block 44 and the push plate 43, and the device is clamped by the elastic force exerted by the spring 42 and the elastic block 44.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue gas sampling device comprising a support pole, characterised in that: The support rod is provided with a gas collecting unit, and the gas collecting unit comprises a gas collecting shade which is a horn-shaped shade. A gas cooling channel is arranged at the rear of the gas collecting shade, and a heat exchange medium is arranged in the gas cooling channel. A detector clamping device is arranged at the rear of the gas cooling channel.

2. A flue gas sampling device according to claim 1, characterised in that The support rod is in a pipe-in-pipe structure, comprising an inner pipe and an outer pipe, and spring pins or positioning bolts are arranged between the outer pipe and the inner pipe. A holding handle is arranged at the tail end of the support rod, and an anti-skid rubber sleeve is arranged on the holding handle.

3. A flue gas sampling device according to claim 1, characterised in that The gas cooling channel is arranged in the following form: The gas collecting shade is connected with a supply air coil pipe, a medium storage sleeve is arranged on the outer wall of the supply air coil pipe, the supply air coil pipe is arranged to pass through the medium storage sleeve, the supply air coil pipe and the medium storage sleeve are in sealing connection, and a heat exchange medium is arranged between the supply air coil pipe and the medium storage sleeve. A heat exchange medium injection port is arranged on the medium storage sleeve, and a plunger is arranged on the heat exchange medium injection port.

4. A flue gas sampling device according to claim 3, characterised in that The heat exchange medium is ice water.

5. A flue gas sampling device according to claim 3, characterised in that The supply air coil pipe is a transition smooth curved coil pipe, and the pipe diameter is not greater than one tenth of the outer diameter of the gas collecting shade.

6. A flue gas sampling device according to claim 1, characterised in that The detector clamping device is arranged in the following form: An assembly platform is arranged on the support rod, a storage box is arranged on the assembly platform, the storage box is in a box body form with an open top surface, a push plate is hingedly arranged on the side wall of the storage box, and a spring is arranged between the push plate and the inner surface of the storage box. Elastic pressing blocks are arranged on the inner wall of the storage box on the opposite side of the push plate.

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