Gas monitoring device for coal-fired thermal power generation boiler

Abstract

The utility model relates to the technical field of gas monitoring devices, and discloses a gas monitoring device for a coal-fired thermal power generation boiler, which comprises a CEMS (continuous emission monitoring system), a side frame is arranged on the left side of the CEMS, a water tank is arranged at the upper end of the side frame, a first gas guide pipe is arranged on the left side of the upper end of the water tank, and a second gas guide pipe is arranged on the right side of the upper end of the water tank. A water cooling coil is arranged at the position, located in the water tank, of the right end of the first air guide pipe, an air cooling coil is arranged at the position, located at the right end of the water cooling coil, of the upper end of the CEMS, a second air guide pipe is arranged at the right end of the air cooling coil, and the second air guide pipe is connected with the CEMS; the side rod is arranged at the upper end of the right side of the CEMS, and a cooling fan is mounted at the upper end of the side rod; the water inlet pipe is arranged on the left side of the upper end of the water tank. According to the utility model, high-temperature flue gas is cooled by arranging the water-cooling coil pipe and the air-cooling coil pipe, so that the monitoring device is prevented from being damaged by the high-temperature flue gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas monitoring device technical field, concretely is a kind of gas monitoring device for coal-fired thermal power generation boiler. BACKGROUND

[0002] Coal-fired thermal power generation boiler is a kind of equipment using coal as fuel, generates heat energy by burning, and then converts into electric energy.It is one of the core equipment of thermal power plant, mainly by hearth, flue, burner and air preheater etc..Coal-fired thermal power generation boiler produces a variety of gases in the combustion process, which mainly includes: sulfur dioxide and nitrogen oxides, in order to control and reduce the pollution to the environment, the gas generated by coal-fired thermal power generation boiler needs to be monitored, through monitoring, harmful gas leakage or over-standard emission can be found in time, gas monitoring device can help optimize the combustion process, improve energy utilization efficiency, reduce fuel consumption and cost, monitor gas concentration can prevent combustible gas accumulation, reduce the risk of explosion and fire.

[0003] CEMS is an integrated monitoring system, which can monitor a variety of pollutants in flue gas in real time, including sulfur dioxide, nitrogen oxides, particulate matter, etc.It usually includes sampling device, pretreatment unit, analytical instrument and data processing system.CEMS system can provide continuous and accurate monitoring data, and is commonly used in coal-fired thermal power generation boiler flue gas monitoring equipment.

[0004] The flue gas temperature of coal-fired thermal power generation boiler is usually very high, and direct access to CEMS will cause thermal damage to the sensors, probes and other components of the monitoring equipment, affecting the service life of the equipment and the accuracy of the monitoring data, therefore a kind of gas monitoring device for coal-fired thermal power generation boiler is proposed. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of gas monitoring device for coal-fired thermal power generation boiler to solve the problems raised in the above background.

[0007] (II) technical scheme

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a kind of gas monitoring device for coal-fired thermal power generation boiler, comprising:

[0009] The CEMS is provided with a side frame on the left side, and a water tank is arranged at the upper end of the side frame, a first air guide pipe is arranged at the left upper end of the water tank, a water cooling coil is arranged at the right end of the water tank inside the first air guide pipe, an air cooling coil is arranged at the right end of the water cooling coil on the upper end of the CEMS, a second air guide pipe is arranged at the right end of the air cooling coil, and the second air guide pipe is connected with the CEMS.

[0010] A side rod is arranged at the upper end of the right side of the CEMS, and a heat dissipation fan is arranged at the upper end of the side rod.

[0011] A water inlet pipe is arranged at the left upper end of the water tank, and a water outlet pipe is arranged at the left lower end of the water tank.

[0012] Preferably, a supporting rod is arranged at the left lower end of the side frame, and the supporting rod is connected with the side frame, and the supporting rod is used for supporting the side frame.

[0013] Preferably, an adjusting screw is arranged at the inner lower end of the supporting rod, and the adjusting screw is connected with the supporting rod through thread cooperation, and the adjusting screw enables the supporting structure to be accommodated.

[0014] Preferably, a supporting disc is arranged at the lower end of the adjusting screw, and the supporting disc is connected with the adjusting screw, and the supporting disc is used for increasing the supporting area.

[0015] Preferably, a bottom frame is arranged at the left and right sides of the lower end of the CEMS, and the bottom frame is connected with the CEMS, and the bottom frame is used for mounting a moving structure.

[0016] Preferably, a bottom strip is arranged at the inner lower end of the bottom frame, and the bottom strip is connected with the bottom frame in a sliding mode, and the bottom strip can be lifted and moved in the bottom frame.

[0017] Preferably, an adjusting bolt is arranged at the inner lower end of the bottom frame, and the adjusting bolt is connected with the bottom frame through thread cooperation, and the adjusting bolt is used for controlling the lifting of the bottom strip.

[0018] Preferably, the lower end of the adjusting bolt penetrates and extends to the lower end of the bottom frame, and the adjusting bolt is connected with the bottom strip in a rotating mode.

[0019] Preferably, universal wheels are arranged at the front and back sides of the lower end of the bottom strip, and the universal wheels are connected with the bottom strip, and the universal wheels enable the device to be moved conveniently.

[0020] Preferably, the water inlet pipe and the water outlet pipe are connected with the water tank, and the water outlet pipe is used for discharging water.

[0021] (Three) beneficial effects

[0022] Compared with the prior art, the gas monitoring device for the coal-fired thermal power boiler has the following beneficial effects:

[0023] The utility model discloses a water tank and water cooling coil and air cooling coil and heat dissipation fan are set up, first through the water circulation to the high temperature flue gas rapid cooling, the subsequent use heat dissipation fan generated airflow secondary cooling the flue gas in the air cooling coil, thereby make the flue gas temperature reduction of entering CEMS and will not damage the sensor and probe of CEMS, solved the problem in the background art. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure perspective drawing of the utility model;

[0025] Figure 2 It is the water tank internal structure section view of the utility model;

[0026] Figure 3 It is the Figure 2 A area local amplification drawing of middle.

[0027] In the drawing: 1, CEMS;2, side frame;3, water tank;4, first gas guide pipe;5, water cooling coil;6, air cooling coil;7, second gas guide pipe;8, side rod;9, heat dissipation fan;10, bottom frame;11, adjusting bolt;12, bottom strip;13, universal wheel;14, water inlet pipe;15, drain pipe;16, support rod;17, adjusting screw;18, support disc. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0029] The utility model provides a technical scheme, a kind of gas monitoring device for coal-fired thermal power generation boiler, please refer to Figure 1 、 Figure 2 And Figure 3 , comprising:

[0030] CEMS1, the left side of CEMS1 is provided with side frame 2, and the upper end of side frame 2 is provided with water tank 3, the left side of the upper end of water tank 3 is provided with first gas guide pipe 4, and the right end of first gas guide pipe 4 is provided with water cooling coil 5 in the inside of water tank 3, the right end of water cooling coil 5 is provided with air cooling coil 6 in the upper end of CEMS1, and the right end of air cooling coil 6 is provided with second gas guide pipe 7, and second gas guide pipe 7 is connected with CEMS1;

[0031] side rod 8, is set to the upper end of the right side of CEMS1, and the upper end of side rod 8 is installed with heat dissipation fan 9.

[0032] The inlet pipe 14 is arranged on the left side of the upper end of the water tank 3, and the drain pipe 15 is arranged on the left side of the lower end of the water tank 3.

[0033] In use, the first air guide pipe 4 is connected with the exhaust pipe of the coal-fired power boiler, the inlet pipe 14 is connected with the water source, the water source and the cooling fan 9 are turned on, the flue gas enters the water cooling coil 5 through the first air guide pipe 4, the water cooling coil 5 is cooled by the water flow in the water tank 3, the cooled flue gas enters the air cooling coil 6, the flue gas in the air cooling coil 6 is cooled under the action of the cooling fan 9, and then enters the CEMS 1. It should be noted that, in order to save space and highlight the innovative elements of the patent, some conventional devices such as CEMS 1 and cooling fan 9 are not described in detail in the patent.

[0034] Please refer to Figure 1 and Figure 2 , the support rod 16 is arranged on the left side of the lower end of the side frame 2, and the support rod 16 is connected with the side frame 2, and the support rod 16 is used to support the side frame 2.

[0035] Please refer to Figure 1 and Figure 2 , the adjusting screw 17 is arranged in the inner part of the lower end of the support rod 16, and the adjusting screw 17 is connected with the support rod 16 through thread cooperation, and the adjusting screw 17 enables the support structure to be stored.

[0036] Please refer to Figure 1 and Figure 2 , the support disc 18 is arranged at the lower end of the adjusting screw 17, and the support disc 18 is connected with the adjusting screw 17, and the support disc 18 is used to increase the support area.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 , the bottom frame 10 is arranged on the left and right sides of the lower end of the CEMS 1, and the bottom frame 10 is connected with the CEMS 1, and the bottom frame 10 is used to install the moving structure.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 , the bottom strip 12 is arranged in the inner part of the lower end of the bottom frame 10, and the bottom strip 12 is connected with the bottom frame 10 through sliding, and the bottom strip 12 can be lifted and moved in the inner part of the bottom frame 10.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 , the adjusting screw bolt 11 is arranged in the inner part of the bottom frame 10, and the adjusting screw bolt 11 is connected with the bottom frame 10 through thread cooperation, and the adjusting screw bolt 11 is used to control the lifting of the bottom strip 12.

[0040] Please refer to Figure 1 、 Figure 2 and Figure 3 , the lower end of the adjusting bolt 11 penetrates and extends to the lower end of the bottom frame 10, and the adjusting bolt 11 is rotationally connected with the bottom strip 12.

[0041] Please refer to Figure 1 、 Figure 2 and Figure 3 , the front and rear sides of the lower end of the bottom strip 12 are both provided with universal wheels 13, and the universal wheels 13 are connected with the bottom strip 12, so that the device is convenient to move.

[0042] Please refer to Figure 1 and Figure 2 , the water inlet pipe 14 and the drain pipe 15 are both connected with the water tank 3, the water inlet pipe 14 is used for guiding the water source into the water tank 3, and the drain pipe 15 is used for discharging the water source.

[0043] The scheme: the first air guide pipe 4 is connected with the exhaust pipe of the coal-fired thermal power boiler, the water inlet pipe 14 is connected with the water source, the water source and the cooling fan 9 are turned on, the flue gas enters the water cooling coil 5 through the first air guide pipe 4, the water cooling coil 5 is cooled by the water flow in the water tank 3, the cooled flue gas enters the air cooling coil 6 along the pipeline, and the flue gas in the air cooling coil 6 is cooled under the action of the cooling fan 9, and then enters the CEMS 1, when it is necessary to move the monitoring device, the adjusting bolt 11 is rotated, the adjusting bolt 11 and the bottom frame 10 convert the rotary motion of the adjusting bolt 11 into the lifting motion under the cooperation of the threads, and then the bottom strip 12 drives the universal wheels 13 to move downward to support the CEMS 1, and the universal wheels 13 are used to make the monitoring device convenient to move.

[0044] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0045] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas monitoring device for a coal-fired thermal power boiler, characterized in that, Include: CEMS (1), the left side of the CEMS (1) is provided with a side frame (2), and the upper end of the side frame (2) is provided with a water tank (3), the left side of the upper end of the water tank (3) is provided with a first air duct (4), the right end of the first air duct (4) is provided with a water cooling coil (5) in the inside of the water tank (3), the upper end of the CEMS (1) is provided with an air cooling coil (6) at the right end of the water cooling coil (5), the right end of the air cooling coil (6) is provided with a second air duct (7), and the second air duct (7) is connected with the CEMS (1); The side rod (8) is arranged at the upper end of the right side of the CEMS (1), and the upper end of the side rod (8) is provided with a cooling fan (9); The water inlet pipe (14) is arranged at the left side of the upper end of the water tank (3), and the left side of the lower end of the water tank (3) is provided with a drain pipe (15).

2. A gas monitoring device for a coal-fired thermal power plant boiler according to claim 1, characterized in that: The left side of the lower end of the side frame (2) is provided with a supporting rod (16), and the supporting rod (16) is connected with the side frame (2).

3. A gas monitoring device for a coal-fired power boiler according to claim 2, characterized in that: The inside of the lower end of the supporting rod (16) is provided with an adjusting screw (17), and the adjusting screw (17) is connected with the supporting rod (16) through thread cooperation.

4. A gas monitoring device for a coal-fired power boiler according to claim 3, characterized in that: The lower end of the adjusting screw (17) is provided with a supporting disc (18), and the supporting disc (18) is connected with the adjusting screw (17).

5. A gas monitoring device for a coal-fired power boiler according to claim 1, characterized in that: The left and right sides of the lower end of the CEMS (1) are provided with a bottom frame (10), and the bottom frame (10) is connected with the CEMS (1).

6. A gas monitoring device for a coal-fired power boiler according to claim 5, characterized in that: The inside of the lower end of the bottom frame (10) is provided with a bottom strip (12), and the bottom strip (12) is connected with the bottom frame (10) through sliding.

7. A gas monitoring device for a coal-fired power boiler according to claim 6, characterized in that: The inside of the bottom frame (10) is provided with an adjusting bolt (11), and the adjusting bolt (11) is connected with the bottom frame (10) through thread cooperation.

8. A gas monitoring device for a coal-fired power boiler according to claim 7, characterized in that: The lower end of the adjusting bolt (11) penetrates and extends to the lower end of the bottom frame (10), and the adjusting bolt (11) is connected with the bottom strip (12) through rotation.

9. A gas monitoring device for a coal-fired power boiler according to claim 8, characterized in that: The front and rear sides of the lower end of the bottom strip (12) are provided with universal wheels (13), and the universal wheels (13) are connected with the bottom strip (12).

10. A gas monitoring device for a coal-fired power boiler according to claim 1, characterized in that: The water inlet pipe (14) and the drain pipe (15) are connected with the water tank (3).

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