High-precision clean flue gas full-scale calibration device in alpine region

Abstract

The invention relates to the technical field of flue gas calibration, in particular to an alpine region high-precision clean flue gas full-scale calibration device, which comprises a detection module, a gas analyzer main body and an auxiliary unit, the purging module comprises a first purging unit and a second purging unit; the collection module comprises a collection unit and a liquid accumulation unit, and can achieve the purpose of rapidly displaying measurement data, rapid calibration is achieved, the smoke measurement precision is improved, adsorption of smoke pollutants in the whole device is effectively reduced, and the effects of reducing the risks of scalding, falling objects and the like caused by manual cleaning of workers and relieving the working intensity of the workers are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas calibration, in particular to a high-precision clean flue gas full-range calibration device in high-cold areas. Background Art

[0002] At present, there is NH3 escaping in the flue gas of thermal power plants after denitrification, which reacts with SO3 to form ammonium bisulfate (NH4HSO4). Ammonium bisulfate is a substance with extremely high viscosity and a melting point of 147°C. The current heating temperature of the sampling probe in our factory is 120-150°C, and the temperature of the sampling pipeline is 120°C. For power plants in high-cold areas, the outdoor temperature in winter can reach below -40°C, and the temperature of the sampling pipeline is further reduced, causing ammonium bisulfate to adhere to the flue gas sampling probe and the heating pipeline in a solid state, adsorbing SO2, NO2 and other components in the flue gas, resulting in data during full-range calibration. The error requirements cannot be met, and the cold cavity temperature of the condenser in the cabinet is 3°C, which can easily cause ammonium bisulfate to adhere to the cold cavity, resulting in the adsorption of SO2 and NO2 components. Since SO2 and NO2 are easily soluble in water, the moisture accumulated in the flue gas in the cold cavity can also absorb most of the SO2 and NO2, resulting in the failure to meet the requirements when calibrating the entire system. The current method of cleaning the pipeline is to use diluted phosphoric acid solution to clean the sampling pipeline at the local platform manually. The effect can be achieved in a short time after cleaning, and the test meets the requirements, but after 7-10 days, ammonium bisulfate will still adhere to the sampling pipeline and probe. Because the temperature of the probe and sampling pipeline is 120-150°C, the temperature of the solution will rise to more than 100°C after passing through the pipeline, and there is a risk of scalding caused by the splashing of the solution. At the same time, phosphoric acid is a medium-strong acid and is corrosive, which can easily cause personal injury when making the solution. In winter, there is snow and ice accumulation on the clean flue platform, and ice falls on the smoke head. Frequent operations pose a risk of injury to personnel. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a high-precision clean flue gas full-range calibration device for high-cold areas.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including a detection module, including a probe unit, a sampling pipeline, a calibration gas unit, a conveying unit, a condensation unit, a gas analyzer body and an auxiliary unit; a purge module, including a first purge unit and a second purge unit; a collection module, including a collection unit and a liquid accumulation unit.

[0006] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the probe unit includes a probe heating chamber, a probe rod and a probe, the probe rod is fixedly connected to the probe, and the probe is arranged in the heating chamber.

[0007] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the standard gas unit includes a standard gas connector, a first delivery pipeline, a two-way solenoid valve, a second delivery pipeline, a first one-way valve and a third delivery pipeline. The first delivery pipeline is connected to the standard gas connector and the two-way solenoid valve, the second delivery pipeline is connected to the first one-way valve and the two-way solenoid valve, and the third delivery pipeline is connected to the first one-way valve and the heating chamber.

[0008] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the conveying unit includes a first pipeline, a first three-way solenoid valve, a second pipeline, a phosphoric acid titration device, a third pipeline and an insulation pipe. The first pipeline is connected to the heating chamber and the first three-way solenoid valve, the second pipeline is connected to the first three-way solenoid valve and the phosphoric acid titration device, and the third pipeline is connected to the phosphoric acid titration device.

[0009] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the condensation unit includes a primary condensation chamber, a fourth pipe, a second three-way solenoid valve, a sampling pump, a secondary condensation chamber, a fifth pipe, a filter and a second one-way valve. The first condensation chamber is connected to the fourth pipe and the third pipe, the fourth pipe is connected to the second three-way solenoid valve, the sampling pump and the secondary condensation chamber, and the fifth pipe is connected to the secondary condensation chamber, the filter, the second one-way valve and the gas analyzer.

[0010] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the auxiliary unit includes a first bypass pipe, a bypass valve and a second bypass pipe, the first bypass pipe and the second bypass pipe are both connected to the fourth pipeline, and the bypass valve is connected to the first bypass pipe and the second bypass pipe.

[0011] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the first purge unit includes a first purge box, a first valve, a first purge pipe, a gas storage tank, a second purge pipe and a second valve. The first purge pipe is connected to the first valve and the gas storage tank, the second purge pipe is connected to the gas storage tank and the second valve, and the second valve is connected to the heating chamber.

[0012] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the second purge unit includes a third valve, a second purge box and a third purge pipe, the third valve is connected to the second purge and the third purge pipe, and the third purge pipe is connected to the first three-way solenoid valve.

[0013] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the collection unit includes an exhaust gas collection chamber, a first collecting pipe, an exhaust pipe, a second collecting pipe, a third one-way valve, a third collecting pipe, a fourth collecting pipe, a flow meter and a fifth collecting pipe, the exhaust gas collection chamber is connected to the first collecting pipe, the fourth collecting pipe and the fifth collecting pipe, the third collecting pipe is connected to the fourth collecting pipe and the third one-way valve, and the second collecting pipe is connected to the third one-way valve and the fourth pipeline.

[0014] As a preferred solution of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention, the liquid accumulation unit includes a liquid accumulation barrel, a first liquid accumulation tube, a second liquid accumulation tube and a third liquid accumulation tube, the first liquid accumulation tube is connected to the first-level condensation chamber, the second-level condensation chamber and the liquid accumulation barrel, the second liquid accumulation tube is connected to the fourth collecting tube and the liquid accumulation barrel, and the third liquid accumulation tube is connected to the first collecting tube and the liquid accumulation barrel.

[0015] The beneficial effects of the high-precision clean flue gas full-range calibration device for high-cold areas of the present invention are as follows: through the detection module, the purge module and the collection module, the purpose of quickly displaying the measurement data can be achieved, and rapid calibration can be realized to detect whether the measurement data of the gas analysis body is accurate, thereby improving the flue gas measurement accuracy, and can effectively reduce the adsorption of flue gas pollutants in the entire device, reduce the risks of burns, falling objects from high altitudes, etc. caused by manual cleaning by personnel, reduce the work intensity of laborers, solve the problems existing in the prior art, and achieve the purpose of quickly displaying the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is the overall schematic diagram of the high-precision clean flue gas full-range calibration device in high-cold areas.

[0018] Figure 2 This is the overall schematic diagram of the conveying unit of the high-precision clean flue gas full-range calibration device in high-cold areas.

[0019] Figure 3 This is the overall schematic diagram of the detection module of the high-precision clean flue gas full-range calibration device in high-cold areas.

[0020] Figure 4 This is the overall schematic diagram of the collection unit of the high-precision clean flue gas full-range calibration device in high-cold areas.

[0021] In the figure: 100, detection module; 101, probe heating unit; 101a, probe heating chamber; 101b, probe rod; 101c, probe; 102, sampling pipeline; 103, calibration gas unit; 103a, calibration gas connector; 103b, first delivery pipeline; 103c, two-way solenoid valve; 103d, second delivery pipeline; 103e, first non-return valve; 103f, third delivery pipeline; 104, delivery unit; 104a, first pipeline; 104b, First three-way solenoid valve; 104c, second pipeline; 104d, phosphoric acid titration device; 104e, third pipeline; 104f, insulation pipe; 105, condensation unit; 105a, primary condensation chamber; 105b, fourth pipeline; 105c, second three-way solenoid valve; 105d, sampling pump; 105e, secondary condensation chamber; 105f, fifth pipeline; 105g, filter; 105h, second one-way valve; 106, gas analyzer body; 107, auxiliary unit element; 107a, first bypass pipe; 107b, bypass valve; 107c, second bypass pipe; 200, purge module; 201, first purge unit; 201a, first purge box; 201b, first valve; 201c, first purge pipe; 201d, gas tank; 201e, second purge pipe; 201f, second valve; 202, second purge unit; 202a, third valve; 202b, second purge box; 202c, third purge pipe; 300 , collecting module; 301, collecting unit; 301a, exhaust gas collecting chamber; 301b, first collecting pipe; 301c, exhaust pipe; 301d, second collecting pipe; 301e, third one-way valve; 301f, third collecting pipe; 301g, fourth collecting pipe; 301h, flow meter; 301i, fifth collecting pipe; 302, liquid accumulation unit; 302a, liquid accumulation barrel; 302b, first liquid accumulation pipe; 302c, second liquid accumulation pipe; 302d, third liquid accumulation pipe. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example 1

[0026] Reference Figure 1 to Figure 3 , is the first embodiment of the present invention, which provides a high-precision clean flue gas full-range calibration device for high-cold areas, which includes a detection module 100, including a probe 101c unit 101 heating unit 101, a sampling pipeline 102, a calibration gas unit 103, a conveying unit 104, a condensing unit 105, a gas analyzer body 106 and an auxiliary unit 107; a purge module 200, including a first purge unit 201 and a second purge unit 202; a collection module 300, including a collection unit 301 and a liquid accumulation unit 302.

[0027] Specifically, the sampling line 102 contains three tubes, two Φ8 tubes and one Φ6 tube.

[0028] Further, the probe 101c unit 101 heating unit 101 comprises a probe 101c heating chamber 101a, a probe rod 101b and a probe 101c, the probe rod 101b is fixedly connected to the probe 101c, and the probe 101c is arranged in the heating chamber; the standard gas unit 103 comprises a standard gas connector 103a, a first delivery pipeline 103b, a two-way solenoid valve 103c, a second delivery pipeline 103d, a first one-way valve 103e and a third delivery pipeline 103f, the first delivery pipeline 103b is connected to the standard gas connector 103a, a first delivery pipeline 103b, a two-way solenoid valve 103c, a second delivery pipeline 103d, a first one-way valve 103e and a third delivery pipeline 103f. 3a is connected to the two-way solenoid valve 103c, the second delivery pipeline 103d is connected to the first one-way valve 103e and the two-way solenoid valve 103c, and the third delivery pipeline 103f is connected to the first one-way valve 103e and the heating chamber; the delivery unit 104 includes a first pipeline 104a, a first three-way solenoid valve 104b, a second pipeline 104c, a phosphoric acid titration device 104d, a third pipeline 104e and an insulation pipe 104f, the first pipeline 104a is connected to the heating chamber and the first three-way solenoid valve 104b, the second pipeline 104c, a phosphoric acid titration device 104d, a third pipeline 104e and an insulation pipe 104f, the first pipeline 104a is connected to the heating chamber and the first three-way solenoid valve 104b, the second pipeline 104c is connected to the heating chamber and the first three-way solenoid valve 104d, the second pipeline 104c is connected to the heating chamber and the first three-way solenoid valve 104d, the second pipeline 104d ... 04c is connected to the first three-way solenoid valve 104b and the phosphoric acid titration device 104d, and the third pipeline 104e is connected to the phosphoric acid titration device 104d; the condensation unit 105 includes a primary condensation chamber 105a, a fourth pipeline 105b, a second three-way solenoid valve 105c, a sampling pump 105d, a secondary condensation chamber 105e, a fifth pipeline 105f, a filter 105g and a second one-way valve 105h, the first condensation chamber is connected to the fourth pipeline 105b and the third pipeline 104e, the fourth pipeline 105b is connected to the second The three-way solenoid valve 105c, the sampling pump 105d and the secondary condensation chamber 105e are connected, the fifth pipeline 105f is connected with the secondary condensation chamber 105e, the filter 105g, the second one-way valve 105h and the gas analyzer; the auxiliary unit 107 includes a first bypass pipe 107a, a bypass valve 107b and a second bypass pipe 107c, the first bypass pipe 107a and the second bypass pipe 107c are both connected with the fourth pipeline 105b, and the bypass valve 107b is connected with the first bypass pipe 107a and the second bypass pipe 107c.

[0029] Among them, the probe rod 101b and the probe head 101c are combined into a sampling probe head 101c, the heating temperature of the heating chamber and the probe head 101c can be stabilized at 180°C, which can effectively avoid the accumulation of ammonium salts here, and the bypass valve is opened when the sampling pump 105d is insufficient, so that more standard gas / flue gas can be sent to the inside of the gas analyzer body 106, and two insulation pipes 104f are provided, and the two insulation pipes 104f are respectively arranged on the outer surfaces of the second pipe 104c and the third pipe 104e, and the phosphoric acid titration device 104d can regularly drip the diluted phosphoric acid into the pipeline in the cabinet and the first-level condensation chamber 105a and the second-level condensation chamber 105e.

[0030] When in use, the standard gas is connected to the standard gas connector 103a, the two-way solenoid valve 103c and the first one-way valve 103e are started, so that the standard gas is transported to the heating chamber through the first delivery pipe 103b, the second delivery pipe 103d and the third delivery pipe 103f for heating, and then the first three-way solenoid valve 104b is started, so that the standard gas is transported to the first-level condensation chamber 105a through the first pipe 104a, the second pipe 104c and the third pipe 104e for primary condensation. After the condensation temperature of the standard gas is lowered, it is transported to the second-level condensation chamber 105e through the second one-way solenoid valve, the sampling pump 105d and the fourth pipe 105b for secondary condensation. After the condensation temperature of the standard gas is lowered, it is transported to the gas analyzer body 106 through the second pipe 104c, the filter seven and the second one-way valve 105h for gas analysis. After the standard gas is passed, the timing is started, and the gas analyzer body 106 measures within 200 seconds. The gas data output reaches 90% of the standard gas concentration, and the indication error is within ±2.5% at the final steady state, which means that the full range index is reached. The whole process simulates the flue gas from the probe 101c through the sampling tube, the condenser and finally enters the gas analyzer body 106, and detects all the processes of the flue gas to detect whether the measurement data of the gas analysis body is accurate, realize calibration, and improve the flue gas measurement accuracy. Then, the two-way solenoid valve 103c and the first one-way valve 103e are closed, so that the flue gas after denitrification is extracted and transported to the probe 101c room through the sampling pump 105d, and the flue gas is transported to the gas analyzer for gas analysis according to the above-mentioned standard gas transportation process. The heating temperature of the heating chamber and the probe 101c can be stabilized at 180°C, which effectively avoids the accumulation of ammonium salts here. At the same time, the phosphoric acid titration device 104d is set to ensure that there is no ammonia salt accumulation in the primary condensation chamber 105a and the secondary condensation chamber 105e;

[0031] The sampling pipeline 102 contains three tubes, two Φ8 tubes and one Φ6 tube. When the original platinum resistor PT100 is damaged and cannot be used, the on-site personnel can directly insert a new platinum resistor PT100 into the Φ6 tube without peeling off the sampling pipeline 102 for pre-embedding, thereby avoiding temperature loss and damage to the pipeline surface. The temperature of the sampling pipeline 102 can be controlled between 150-180°C, and even in the extremely low temperature in winter, the temperature can still be controlled above 150°C to avoid ammonium salt accumulation.

[0032] In summary, the degree of ammonia salt adhesion in the sampling pipeline is greatly reduced, and the adsorption of SO2 and NO2 in the sampling pipeline, probe 101c, primary condensation chamber 105a and secondary condensation chamber 105e is reduced, which effectively reduces the adsorption of flue gas pollutants in the entire device, reduces the risks of burns and falling objects caused by manual cleaning by personnel, and reduces the work intensity of workers.

[0033] Example 2

[0034] Reference Figure 1 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a high-precision clean flue gas full-range calibration device for high-cold areas, which includes a first purge unit 201 including a first purge box 201a, a first valve 201b, a first purge pipe 201c, a gas tank 201d, a second purge pipe 201e and a second valve 201f, the first purge pipe 201c is connected to the first valve 201b and the gas tank 201d, the second purge pipe 201e is connected to the gas tank 201d and the second valve 201f, and the second valve 201f is connected to the heating chamber; the second purge unit 202 includes a third valve 202a, a second purge box 202b and a third purge pipe 202c, the third valve 202a is connected to the second purge and the third purge pipe 202c, and the third purge pipe 202c is connected to the first three-way solenoid valve 104b.

[0035] When in use, start the first valve 201b and the second valve 201f, so that the compressed air is blown into the heating chamber through the first purge pipe 201c and the second purge pipe 201e, so as to provide compressed air to purge the probe 101c and the probe rod 101b, effectively preventing blockage. At the same time, start the third valve 202a, so that the compressed air is blown to the sampling pipeline 102 through the second purge box 202b and the third purge pipe 202c, effectively preventing the sampling pipeline 102 and the fourth pipeline 105b from being blocked, further reducing the degree of ammonia salt adhesion in the sampling pipeline, and further reducing the adsorption of SO2 and NO2 in the sampling pipeline, the probe 101c, the first condensation chamber 105a and the second condensation chamber 105e.

[0036] Example 3

[0037] Reference Figure 1 to Figure 4, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a high-precision clean flue gas full-range calibration device for high-cold areas, which includes a collection unit 301 including an exhaust gas collection chamber 301a, a first collection pipe 301b, an exhaust pipe 301c, a second collection pipe 301d, a third one-way valve 301e, a third collection pipe 301f, a fourth collection pipe 301g, a flow meter 301h and a fifth collection pipe 301i. The exhaust gas collection chamber 301a is connected to the first collection pipe 301b, the fourth collection pipe 301g and the fifth collection pipe 301i, and the third collection pipe 301f is connected to the first collection pipe 301b, the fourth collection pipe 301g and the fifth collection pipe 301i. The fourth collecting tube 301g is connected to the third one-way valve 301e, and the second collecting tube 301d is connected to the third one-way valve 301e and the fourth pipeline 105b; the liquid accumulation unit 302 includes a liquid accumulation barrel 302a, a first liquid accumulation tube 302b, a second liquid accumulation tube 302c and a third liquid accumulation tube 302d, the first liquid accumulation tube 302b is connected to the first-level condensation chamber 105a, the second-level condensation chamber 105e and the liquid accumulation barrel 302a, the second liquid accumulation tube 302c is connected to the fourth collecting tube 301g and the liquid accumulation barrel 302a, and the third liquid accumulation tube 302d is connected to the first collecting tube 301b and the liquid accumulation barrel 302a.

[0038] Specifically, two third one-way valves 301e are provided, and the corresponding second collecting pipe 301d is connected to the fifth pipe 105f, and the corresponding third collecting pipe 301f is connected to the second liquid accumulation pipe 302c. The liquid accumulation barrel 302a accumulates the moisture after condensation and in the exhaust gas. The flow meter 301h is 0.5-5L / min flow meter 301h, and the flow reading is more intuitive.

[0039] When in use, in conjunction with Example 1, after the gas analyzer body 106 analyzes the flue gas / standard gas, the one-way valve in the waste gas collection chamber 301a is activated, so that the waste gas is discharged through the second collection pipe 301d, the waste gas collection chamber 301a and the exhaust pipe 301c. At the same time, the waste gas generated when the flue gas / standard brick gas passes through the fourth pipe 105b and the fifth pipe 105f needs to activate the third one-way valve 301e, so that the waste gas passing through the fourth pipe 105b and the fifth pipe 105f is transported to the waste gas collection chamber 301a through the second collection pipe 301d, the third collection pipe 301f, and the fourth collection pipe 301g. The flow meter 301h is used to measure the waste gas transported to the waste gas collection chamber 301a. The flow rate in 01a is detected in real time. The more it is discharged, the more flue gas / standard gas is sent to the gas analyzer. The rate of flue gas / standard gas delivered from the heating chamber to the gas analyzer is calculated, so that the flue gas / standard gas sent to the gas analyzer body 106 is fast and the gas volume is large. The more gas enters the gas analyzer body 106, the faster the data is detected, so as to achieve the purpose of fast display of measurement data, to ensure that the zero point and range drift are less than ±2% during the calibration of the whole smoke purification system, the zero point and range indication error are less than ±5% error, and the time for the standard gas to reach 90% of the range is less than 200s, so as to improve the measurement accuracy;

[0040] The moisture condensed in the first-stage condensation chamber 105a and the second-stage condensation chamber 105e is transported to the liquid storage barrel 302a for storage through the first liquid storage tube 302b, and the moisture in the exhaust gas in the fourth collection tube 301g and the first collection tube 301b is transported to the liquid storage barrel 302a for storage through the second liquid storage tube 302c and the third liquid storage tube 302d, respectively, to achieve the purpose of collecting and storing the moisture after condensation and in the exhaust gas, which is convenient for subsequent centralized processing.

[0041] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0042] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0043] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-precision clean flue gas full-range calibration device for high-cold areas, characterized by: include, The detection module (100) comprises a heating unit (101), a sampling pipeline (102), a calibration gas unit (103), a conveying unit (104), a condensing unit (105), a gas analyzer body (106) and an auxiliary unit (107); A purge module (200), comprising a first purge unit (201) and a second purge unit (202); The collection module (300) comprises a collection unit (301) and a liquid accumulation unit (302).

2. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 1, characterized in that: The probe (101c) unit (101) heating unit (101) comprises a probe (101c) heating chamber (101a), a probe rod (101b) and a probe (101c); the probe rod (101b) is fixedly connected to the probe (101c), and the probe (101c) is arranged in the heating chamber.

3. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 2, characterized in that: The calibration gas unit (103) comprises a calibration gas connector (103a), a first delivery pipeline (103b), a two-way solenoid valve (103c), a second delivery pipeline (103d), a first non-return valve (103e) and a third delivery pipeline (103f); the first delivery pipeline (103b) is connected to the calibration gas connector (103a) and the two-way solenoid valve (103c); the second delivery pipeline (103d) is connected to the first non-return valve (103e) and the two-way solenoid valve (103c); and the third delivery pipeline (103f) is connected to the first non-return valve (103e) and the heating chamber.

4. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 3, characterized in that: The conveying unit (104) comprises a first pipeline (104a), a first three-way solenoid valve (104b), a second pipeline (104c), a phosphoric acid titration device (104d), a third pipeline (104e) and a heat preservation pipe (104f); the first pipeline (104a) is connected to the heating chamber and the first three-way solenoid valve (104b); the second pipeline (104c) is connected to the first three-way solenoid valve (104b) and the phosphoric acid titration device (104d); and the third pipeline (104e) is connected to the phosphoric acid titration device (104d).

5. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 4, characterized in that: The condensation unit (105) comprises a primary condensation chamber (105a), a fourth pipeline (105b), a second three-way solenoid valve (105c), a sampling pump (105d), a secondary condensation chamber (105e), a fifth pipeline (105f), a filter (105g) and a second one-way valve (105h); the first condensation chamber is connected to the fourth pipeline (105b) and the third pipeline (104e); the fourth pipeline (105b) is connected to the second three-way solenoid valve (105c), the sampling pump (105d) and the secondary condensation chamber (105e); and the fifth pipeline (105f) is connected to the secondary condensation chamber (105e), the filter (105g), the second one-way valve (105h) and the gas analyzer.

6. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 5, characterized in that: The auxiliary unit (107) comprises a first bypass pipe (107a), a bypass valve (107b) and a second bypass pipe (107c); the first bypass pipe (107a) and the second bypass pipe (107c) are both connected to the fourth pipeline (105b); the bypass valve (107b) is connected to the first bypass pipe (107a) and the second bypass pipe (107c).

7. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 6, characterized in that: The first purge unit (201) comprises a first purge box (201a), a first valve (201b), a first purge pipe (201c), a gas storage tank (201d), a second purge pipe (201e) and a second valve (201f); the first purge pipe (201c) is connected to the first valve (201b) and the gas storage tank (201d); the second purge pipe (201e) is connected to the gas storage tank (201d) and the second valve (201f); and the second valve (201f) is connected to the heating chamber.

8. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 7, characterized in that: The second purge unit (202) comprises a third valve (202a), a second purge box (202b) and a third purge pipe (202c), the third valve (202a) is connected to the second purge and the third purge pipe (202c), and the third purge pipe (202c) is connected to the first three-way solenoid valve (104b).

9. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 8, characterized in that: The collection unit (301) comprises an exhaust gas collection chamber (301a), a first collection pipe (301b), an exhaust pipe (301c), a second collection pipe (301d), a third one-way valve (301e), a third collection pipe (301f), a fourth collection pipe (301g), a flow meter (301h) and a fifth collection pipe (301i); the exhaust gas collection chamber (301a) is connected to the first collection pipe (301b), the fourth collection pipe (301g) and the fifth collection pipe (301i); the third collection pipe (301f) is connected to the fourth collection pipe (301g) and the third one-way valve (301e); and the second collection pipe (301d) is connected to the third one-way valve (301e) and the fourth pipeline (105b).

10. The high-precision clean flue gas full-range calibration device for high-cold areas as claimed in claim 9, characterized in that: The liquid accumulation unit (302) comprises a liquid accumulation barrel (302a), a first liquid accumulation tube (302b), a second liquid accumulation tube (302c) and a third liquid accumulation tube (302d); the first liquid accumulation tube (302b) is connected to a primary condensation chamber (105a), a secondary condensation chamber (105e) and the liquid accumulation barrel (302a); the second liquid accumulation tube (302c) is connected to a fourth collection tube (301g) and the liquid accumulation barrel (302a); and the third liquid accumulation tube (302d) is connected to the first collection tube (301b) and the liquid accumulation barrel (302a).

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