Novel high-precision mercury generating device and control method thereof

Abstract

The invention relates to the technical field of sheet processing, in particular to a novel high-precision mercury generation device and a control method thereof.The novel high-precision mercury generation device comprises a gas supply mechanism used for controlling introduction of diluent gas and a mercury permeation mechanism used for generating pure mercury vapor; the mercury vapor output mechanism is used for diluting pure mercury vapor to output mercury vapor with set concentration, and the concentration detection mechanism is used for detecting and transmitting mercury vapor concentration information to adjust the mercury vapor concentration. According to the invention, mercury vapor with a set concentration can be accurately output, pure mercury vapor is diluted by adopting the high-range output end of the gas supply mechanism in a mode of adjusting the flow of diluent gas, and the concentration of the output mercury vapor is conveniently controlled; meanwhile, the concentration detection mechanism is adopted to detect the diluted mercury vapor and transmit mercury vapor concentration information to the gas supply mechanism, compensation and correction of the mercury vapor concentration are facilitated, the control precision is high, and the adjusting speed is high.

Description

Technical Field

[0001] The invention relates to the technical field of sheet material processing, and in particular to a novel high-precision mercury generating device and a control method thereof. Background Art

[0002] Mercury pollution has become a global issue. Mercury is a toxic heavy metal that exists in the environment in three valence states (Hg0, Hg1+, Hg2+). It has the characteristics of persistence, long-distance migration and bioaccumulation. Its emissions mainly come from coal burning in power plants, working boilers, waste combustion and some industrial processes. Due to the toxicity, persistence and bioaccumulation of Hg, Hg pollution among heavy metals has received increasing attention. In the existing monitoring system, the analyzer will be calibrated with standard mercury vapor to ensure its monitoring accuracy after continuous real-time monitoring of the mercury content in pollution emissions such as coal burning in boilers and flue gas from waste incinerators.

[0003] Existing standard mercury vapor generating devices generally obtain mercury vapor of different concentrations by controlling the temperature of the mercury permeation tube. For example, a generator for preparing elemental mercury standard gas disclosed in a Chinese patent (Announcement No.: CN105300760B) obtains elemental mercury standard gas of a certain concentration by controlling the carrier gas flow rate and the temperature of the water bath. In specific implementation, due to the lag of the operating air pressure change and temperature regulation, the output mercury vapor concentration is difficult to control, which is not conducive to subsequent calibration work. At the same time, it has no exhaust gas treatment device, which makes it easy for operators to come into contact with mercury vapor, which is easy to cause damage to the health of the operators. At the same time, the air pressure in the system loop is difficult to control, resulting in a low safety factor. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing mercury vapor generating device is difficult to control, the concentration accuracy of the generated mercury vapor is low, and the safety factor is low, which is easy to cause damage to the health of the operator.

[0005] To solve the above technical problems, the first aspect of the present invention adopts the following technical solution: a new type of high-precision mercury generating device, comprising an air supply mechanism for controlling the introduction of dilution gas, a mercury penetration mechanism for generating pure mercury vapor, a mercury vapor output mechanism for diluting pure mercury vapor to output mercury vapor of a set concentration, and a concentration detection mechanism for detecting and transmitting mercury vapor concentration information to adjust the mercury vapor concentration, the air supply mechanism is provided with a low-range output end and a high-range output end for adjusting the mercury vapor concentration by flow regulation, the low-range output end of the air supply mechanism is connected to the input end of the mercury penetration mechanism, the input end of the mercury vapor output mechanism is connected to the high-range output end of the air supply mechanism and the output end of the mercury penetration mechanism through an air path component, the output end of the mercury vapor output mechanism is respectively connected to the input end of the corresponding analysis equipment and the concentration detection mechanism, and the signal output end of the concentration detection mechanism is connected to the signal input end of the air supply mechanism.

[0006] When the present invention is working, it can accurately output mercury vapor of set concentration, and the high-range output end of the gas supply mechanism is used to dilute the pure mercury vapor by adjusting the dilution gas flow rate, so as to facilitate the control of the concentration of the output mercury vapor. At the same time, the concentration detection mechanism is used to detect the diluted mercury vapor and transmit the mercury vapor concentration information to the gas supply mechanism, so as to facilitate the compensation correction of the mercury vapor concentration, with high control accuracy and fast adjustment speed.

[0007] Preferably, the concentration detection mechanism includes a gas power device, a detection gas chamber, a light source assembly, a detection assembly and a photometer control module; the mercury vapor output mechanism is provided with a detection output end for outputting part of the mercury vapor for detection by the concentration detection mechanism to achieve concentration adjustment of the mercury vapor; the air inlet end of the detection gas chamber is connected to the detection output end of the mercury vapor output mechanism; the air outlet end of the detection gas chamber is connected to a corresponding gas collection device through the gas power device; a chamber for mercury vapor to pass through is provided in the detection gas chamber; the light source assembly and the detection assembly are spaced at both ends of the chamber of the detection gas chamber; and the light source assembly and the detection assembly are both connected to the photometer control module.

[0008] Preferably, the concentration detection mechanism also includes a photometer mounting bracket, a light source emitting unit, a light source receiving unit and a first temperature adjustment mechanism for adjusting the temperature of mercury vapor in the concentration detection mechanism to a preset standard temperature, the light source emitting unit and the light source receiving unit are both mounted on the photometer mounting bracket, the air inlet end of the detection gas chamber is connected to the detection output end of the mercury vapor output mechanism through the light source emitting unit, the air outlet end of the detection gas chamber is connected to the gas power device through the light source receiving unit, the light emitting portion of the light source assembly is arranged inside the light source emitting unit and is connected to the chamber of the detection gas chamber, the detection portion of the detection assembly is arranged inside the light source receiving unit and is connected to the chamber, and the temperature adjustment end of the first temperature adjustment mechanism is arranged inside the light source emitting unit.

[0009] When the present invention is working, it can detect the concentration of mercury vapor. At the same time, the first temperature adjustment mechanism is used to adjust the temperature of the mercury vapor in the concentration detection mechanism to a preset standard temperature, so that the detection environment of the concentration detection mechanism can be maintained in a standard detection environment for a long time, which can further improve the accuracy of concentration detection.

[0010] Preferably, the concentration detection mechanism is further provided with a standard gas inlet port for introducing standard gas for calibration.

[0011] Preferably, the mercury infiltration mechanism includes a mercury infiltration furnace, a infiltration furnace control module, a mercury infiltration tube and a second temperature regulating mechanism for regulating the temperature of the mercury infiltration furnace to a preset standard temperature; a mercury infiltration chamber for installing the mercury infiltration tube is provided inside the mercury infiltration furnace; the mercury infiltration tube is arranged in the mercury infiltration chamber of the mercury infiltration furnace; the temperature regulating end and the temperature detection end of the temperature regulating mechanism are both installed on the mercury infiltration furnace; the control end of the infiltration furnace control module is connected to the second temperature regulating mechanism; the signal input end of the infiltration furnace control module is connected to the signal output end of the concentration detection mechanism; the air inlet end of the mercury infiltration chamber of the mercury infiltration furnace is connected to the low-range output end of the air supply mechanism; the air outlet end of the mercury infiltration chamber of the mercury infiltration furnace is connected to the input end of the mercury vapor output mechanism.

[0012] Preferably, a meandering preheating pipe is provided in the mercury permeation furnace, the temperature regulating end of the second temperature regulating mechanism is connected to the preheating pipe, and the air inlet end of the mercury permeation chamber of the mercury permeation furnace is connected to the low-range output end of the air supply mechanism through the preheating pipe.

[0013] When the present invention is working, it can realize the penetration generation of pure mercury vapor, with a fast generation rate and a good generation effect. At the same time, a second temperature adjustment mechanism is used to adjust the temperature of the mercury penetration furnace to a preset standard temperature, so that the penetration rate during mercury penetration is within a better range. At the same time, it is also convenient to trace the concentration of mercury penetration, which can further improve the control accuracy of mercury vapor concentration.

[0014] Preferably, the mercury vapor output mechanism is provided with a purification mechanism for balancing the pressure in the system, the purification mechanism is filled with a filler for purifying mercury vapor, and part of the mercury vapor in the mercury vapor output mechanism is output to the outside after being purified by the purification mechanism.

[0015] In order to solve the above technical problems, the second aspect of the present invention adopts the following technical solution: a control method of a high-precision mercury generating device, using a new type of high-precision mercury generating device as described above, comprising the following steps:

[0016] S1: Initialize the high-precision mercury generator by introducing dilution gas;

[0017] S2: Set the required mercury vapor concentration, start the low-range output end of the gas supply mechanism to pass the dilution gas into the mercury penetration mechanism to perform mercury penetration work to generate pure mercury vapor;

[0018] S3: passing the pure mercury vapor generated by the mercury penetration mechanism and the dilution gas outputted from the high-range output end of the gas supply mechanism into the mercury vapor output mechanism for dilution, and diluting the pure mercury vapor by adjusting the output power of the high-range output end of the gas supply mechanism;

[0019] S4: The diluted mercury vapor is passed into the concentration detection mechanism for concentration detection, and the concentration information is fed back to the gas supply mechanism to control the output power of the high-range output end of the gas supply mechanism. When the concentration of the diluted mercury vapor reaches the set concentration, the mercury vapor is output by the mercury vapor output mechanism.

[0020] Preferably, in the step S2, the following steps are also included: adjusting the working temperature of the mercury penetration mechanism during the mercury penetration operation to a preset standard temperature;

[0021] In the step S4, the following step is also included: adjusting the working temperature of the concentration detection mechanism during concentration detection to a preset standard temperature.

[0022] Preferably, the step S2 further includes the following steps: balancing the gas pressure inside the high-precision mercury generating device by purifying the pure mercury vapor generated by the diversion part and then discharging it.

[0023] When the present invention is working, a series of operations including generation of pure mercury vapor, mixing and dilution, concentration detection and compensation correction of mercury vapor, and output of mercury vapor of set concentration can be realized. The mercury vapor generation rate is fast and stable, the generation effect is good, and high-precision mercury vapor can be output. At the same time, the mercury vapor is purified and discharged, and the air pressure can be balanced while avoiding the operator from contacting with the mercury vapor, thereby improving the safety factor and protecting the personal safety of the operator.

[0024] The beneficial technical effects of the present invention include:

[0025] 1. The present invention can accurately output mercury vapor of set concentration, and uses the high-range output end of the gas supply mechanism to dilute the pure mercury vapor by adjusting the dilution gas flow rate, so as to facilitate the control of the concentration of the output mercury vapor. At the same time, a concentration detection mechanism is used to detect the diluted mercury vapor and transmit the mercury vapor concentration information to the gas supply mechanism, so as to facilitate the compensation correction of the mercury vapor concentration, with high control accuracy and fast adjustment speed.

[0026] 2. The present invention can detect the concentration of mercury vapor and at the same time use a first temperature adjustment mechanism to adjust the temperature of the mercury vapor in the concentration detection mechanism to a preset standard temperature, so that the detection environment of the concentration detection mechanism can be maintained in a standard detection environment for a long time, which can further improve the accuracy of concentration detection.

[0027] 3. The present invention can realize the infiltration generation of pure mercury vapor with fast generation rate and good generation effect. At the same time, the second temperature adjustment mechanism is used to adjust the temperature of the mercury infiltration furnace to a preset standard temperature, so that the infiltration rate during mercury infiltration is within a better range. At the same time, it is also convenient to trace the concentration of mercury infiltration, which can further improve the control accuracy of mercury vapor concentration.

[0028] 4. It can realize a series of tasks including generation of pure mercury vapor, mixed dilution, concentration detection and compensation correction of mercury vapor, and output of mercury vapor of set concentration. The mercury vapor generation rate is fast and stable, the generation effect is good, and high-precision mercury vapor can be output. At the same time, the mercury vapor is purified and discharged, which can balance the air pressure while avoiding the operator's contact with mercury vapor, thereby improving the safety factor and protecting the personal safety of the operator.

[0029] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] Attached Figure 1 It is a structural schematic diagram of a new type of high-precision mercury generating device;

[0032] Attached Figure 2 This is an exploded view of the concentration detection mechanism;

[0033] Attached Figure 3 is a cross-sectional view of a concentration detection mechanism;

[0034] Attached Figure 4 This is an exploded view of the mercury penetration mechanism;

[0035] Attached Figure 5 is a cross-sectional view of a mercury penetration mechanism;

[0036] Attached Figure 6 This is a working flow chart of a new type of high-precision mercury generating device. DETAILED DESCRIPTION

[0037] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0038] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operate in a specific direction. Therefore, it should not be understood as a limitation of the present invention.

[0039] Embodiment 1:

[0040] Please see attached Figure 1 The present embodiment discloses a novel high-precision mercury generating device, including a gas supply mechanism 1 for controlling the introduction of dilution gas, a mercury permeation mechanism 2 for generating pure mercury vapor, a mercury vapor output mechanism 3 for diluting pure mercury vapor to output mercury vapor of a set concentration, and a concentration detection mechanism 4 for detecting and transmitting mercury vapor concentration information for adjusting the mercury vapor concentration, which is described in detail below in conjunction with the accompanying drawings.

[0041] Please see attached Figure 2 To Attachment Figure 6 In this embodiment, the gas supply mechanism 1 is provided with a low-range output end 11 and a high-range output end 12 for adjusting the mercury vapor concentration by flow regulation. In specific implementation, the electronic pressure photometer control module 45 and the sonic orifice can be used to perform low-range output of the dilution gas, which is convenient for control and has stable flow output. The low-range output end 11 of the gas supply mechanism 1 is connected to the input end of the mercury penetration mechanism 2, and the input end of the mercury vapor output mechanism 3 is connected to the high-range output end 12 of the gas supply mechanism 1 and the output end of the mercury penetration mechanism 2 through an air path component. In specific implementation, the air path component can be configured to be composed of an electromagnetic valve and an inertization pipe, and each component is connected through the inertization pipe, and the opening and closing control of the gas passage between each component is controlled by the electromagnetic valve, which has good sealing effect and long service life, and can also reduce the control difficulty. The output end of the mercury vapor output mechanism 3 is respectively connected to the corresponding analysis equipment and the input end of the concentration detection mechanism 4, and the signal output end of the concentration detection mechanism 4 is connected to the signal input end of the gas supply mechanism 1.

[0042] When the present embodiment is working, it can accurately output mercury vapor of a set concentration. The high-range output end 12 of the gas supply mechanism 1 is used to dilute the pure mercury vapor by adjusting the dilution gas flow rate, so as to facilitate the control of the concentration of the output mercury vapor. At the same time, the concentration detection mechanism 4 is used to detect the diluted mercury vapor and transmit the mercury vapor concentration information to the gas supply mechanism 1, so as to facilitate the compensation correction of the mercury vapor concentration, with high control accuracy and fast adjustment speed.

[0043] Preferably, the mercury infiltration mechanism 2 includes a mercury infiltration furnace 21, a infiltration furnace control module 22, a mercury infiltration tube 23 and a second temperature regulating mechanism 24 for regulating the temperature of the mercury infiltration furnace 21 to a preset standard temperature. The interior of the mercury infiltration furnace 21 is provided with a mercury infiltration cavity for installing the mercury infiltration tube 23. The mercury infiltration tube 23 is arranged in the mercury infiltration cavity of the mercury infiltration furnace 21. The temperature regulating end and the temperature detection end of the temperature regulating mechanism are both installed on the mercury infiltration furnace 21. The control end of the infiltration furnace control module 22 is connected to the second temperature regulating mechanism 24. The signal input end of the infiltration furnace control module 22 is connected to the signal output end of the concentration detection mechanism 4. The air inlet end of the mercury infiltration cavity of the mercury infiltration furnace 21 is connected to the low-range output end 11 of the air supply mechanism 1. The air outlet end of the mercury infiltration cavity of the mercury infiltration furnace 21 is connected to the input end of the mercury vapor output mechanism 3.

[0044] As a further improvement of the present embodiment, a preheating pipe 211 arranged in a winding manner is provided in the mercury infiltration furnace 21, the temperature regulating end of the second temperature regulating mechanism 24 is connected to the preheating pipe 211, and the air inlet end of the mercury infiltration chamber of the mercury infiltration furnace 21 is connected to the low-range output end 11 of the gas supply mechanism 1 through the preheating pipe 211, so that sufficient preheating of the dilution gas can be achieved, thereby improving the efficiency of mercury infiltration and the generation of pure mercury vapor. In specific implementation, the dilution gas can be an inert gas such as nitrogen.

[0045] When this embodiment is working, it can realize the penetration generation of pure mercury vapor with fast generation rate and good generation effect. At the same time, the second temperature adjustment mechanism 24 is used to adjust the temperature of the mercury penetration furnace 21 to a preset standard temperature, so that the penetration rate during mercury penetration is within a better range. At the same time, it is also convenient to trace the concentration of mercury penetration, which can further improve the control accuracy of mercury vapor concentration.

[0046] Preferably, the mercury vapor output mechanism 3 is provided with a purification mechanism 31 for balancing the pressure in the system. The purification mechanism 31 is filled with a filler for purifying mercury vapor. Part of the mercury vapor in the mercury vapor output mechanism 3 is output to the outside after being purified by the purification mechanism 31, which can balance the pressure in the system and prevent gas backflow.

[0047] Embodiment 2:

[0048] Please see attached Figure 1This embodiment provides a new type of high-precision mercury generating device. The same points as those in the first embodiment will not be repeated here. The differences will be described in detail below with reference to the accompanying drawings.

[0049] Please see attached Figure 2 To Attachment Figure 6 In this embodiment, the concentration detection mechanism 4 includes a gas power device 41, a detection gas chamber 42, a light source assembly 43, a detection assembly 44 and a photometer control module 45. The mercury vapor output mechanism 3 is provided with a detection output end for outputting part of the mercury vapor for detection by the concentration detection mechanism 4 to achieve concentration adjustment of the mercury vapor. The air inlet end of the detection gas chamber 42 is connected to the detection output end of the mercury vapor output mechanism 3. The air outlet end of the detection gas chamber 42 is connected to the corresponding gas collection device through the gas power device 41. A chamber for mercury vapor to pass through is provided in the detection gas chamber 42. The light source assembly 43 and the detection assembly 44 are arranged at intervals at both ends of the chamber of the detection gas chamber 42. The light source assembly 43 and the detection assembly 44 are both connected to the photometer control module 45.

[0050] In a specific implementation, the detection gas chamber 42 can be configured to be made of quartz, and quartz window glass slides can be conveniently arranged at both ends thereof, which can improve the sealing effect and prevent mercury vapor leakage. Preferably, a flow control valve can be added between the detection gas chamber 42 and the gas power device 41 to improve the detection accuracy. In this embodiment, the light source assembly 43 can be configured to be a mercury lamp, which generates a characteristic spectrum including 254nm. After irradiating the mercury vapor, the detection assembly 44 receives a signal and generates mercury vapor concentration information, thereby realizing real-time detection of mercury vapor. Of course, any other existing mercury vapor concentration detection device can also be used.

[0051] Preferably, the concentration detection mechanism 4 also includes a photometer mounting bracket 46, a light source emitting part 47, a light source receiving part 48 and a first temperature adjustment mechanism 49 for adjusting the temperature of the mercury vapor in the concentration detection mechanism 4 to a preset standard temperature. The light source emitting part 47 and the light source receiving part 48 are both mounted on the photometer mounting bracket 46. The air inlet end of the detection gas chamber 42 is connected to the detection output end of the mercury vapor output mechanism 3 through the light source emitting part 47, and the air outlet end of the detection gas chamber 42 is connected to the gas power device 41 through the light source receiving part 48. The light emitting part of the light source assembly 43 is arranged inside the light source emitting part 47 and is connected to the chamber of the detection gas chamber 42. The detection part of the detection assembly 44 is arranged inside the light source receiving part 48 and is connected to the chamber. The temperature adjustment end of the first temperature adjustment mechanism 49 is arranged inside the light source emitting part 47. By adjusting the temperature of the mercury vapor in the concentration detection mechanism 4 to a preset standard temperature, such as the calibration temperature set when calibrating the concentration detection mechanism 4, the detection error is further reduced and the accuracy of the output mercury vapor concentration is improved.

[0052] When this embodiment is working, it can realize the detection of mercury vapor concentration. At the same time, the first temperature adjustment mechanism 49 is used to adjust the temperature of mercury vapor in the concentration detection mechanism 4 to a preset standard temperature, so that the detection environment of the concentration detection mechanism 4 can be maintained in the standard detection environment for a long time, which can further improve the accuracy of concentration detection.

[0053] As a further improvement of this embodiment, the concentration detection mechanism 4 is also provided with a standard gas inlet end for introducing standard gas for calibration, which facilitates the calibration of the concentration detection mechanism 4. During the use of the high-precision mercury generating device, the standard gas inlet end of the concentration detection mechanism 4 can be connected to the output end of the concentration detection mechanism 4 through an air path component, which facilitates the emptying of the concentration detection mechanism 4, avoids residual mercury vapor, and improves the safety factor.

[0054] Embodiment three:

[0055] Please see attached Figure 6 This embodiment provides a control method for a high-precision mercury generating device, using a new type of high-precision mercury generating device as in the above embodiment, including the following steps:

[0056] S1: Initialize the high-precision mercury generator by introducing dilution gas;

[0057] S2: setting the required mercury vapor concentration, starting the low-range output terminal 11 of the gas supply mechanism 1 to pass the dilution gas into the mercury penetration mechanism 2 to perform mercury penetration to generate pure mercury vapor;

[0058] S3: The pure mercury vapor generated by the mercury penetration mechanism 2 and the dilution gas outputted from the high-range output end 12 of the gas supply mechanism 1 are introduced into the mercury vapor output mechanism 3 for dilution, and the pure mercury vapor is diluted by adjusting the output power of the high-range output end 12 of the gas supply mechanism 1;

[0059] S4: The diluted mercury vapor is passed into the concentration detection mechanism 4 for concentration detection, and the concentration information is fed back to the gas supply mechanism 1 to control the output power of the high-range output terminal 12 of the gas supply mechanism 1. When the concentration of the diluted mercury vapor reaches the set concentration, the mercury vapor is output by the mercury vapor output mechanism 3.

[0060] Preferably, the method further includes the following steps: in step S2, adjusting the working temperature of the mercury infiltration mechanism 2 during the mercury infiltration operation to a preset standard temperature;

[0061] In step S4, the following steps are also included: adjusting the working temperature of the concentration detection mechanism 4 during concentration detection to a preset standard temperature.

[0062] In the specific implementation, in S2, the following steps are also included, in which the pure mercury vapor generated by the diversion part is purified and then discharged to balance the gas pressure inside the high-precision mercury generating device.

[0063] When the present embodiment is working, it can realize a series of operations including generation, mixing and dilution of pure mercury vapor, concentration detection and compensation correction of mercury vapor, and output of mercury vapor of set concentration. The mercury vapor generation rate is fast and stable, the generation effect is good, and high-precision mercury vapor can be output. At the same time, the mercury vapor is purified and discharged, and the air pressure can be balanced while avoiding the operator from being exposed to the mercury vapor, thereby improving the safety factor and protecting the personal safety of the operator.

[0064] The beneficial technical effects of this embodiment include: being able to accurately output mercury vapor of a set concentration, using the high-range output end of the gas supply mechanism to dilute the pure mercury vapor by adjusting the dilution gas flow rate, thereby facilitating control of the concentration of the output mercury vapor, and simultaneously using a concentration detection mechanism to detect the diluted mercury vapor and transmit the mercury vapor concentration information to the gas supply mechanism, thereby facilitating compensation and correction of the mercury vapor concentration, with high control accuracy and fast adjustment speed.

[0065] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A new type of high-precision mercury generating device, characterized by: The invention comprises an air supply mechanism (1) for controlling the introduction of dilution gas, a mercury permeation mechanism (2) for generating pure mercury vapor, a mercury vapor output mechanism (3) for diluting pure mercury vapor to output mercury vapor of a set concentration, and a concentration detection mechanism (4) for detecting and transmitting mercury vapor concentration information to adjust the mercury vapor concentration. The air supply mechanism (1) is provided with a low-range output end (11) and a high-range output end (12) for adjusting the mercury vapor concentration by flow regulation. The low-range output end (11) of the air supply mechanism (1) is connected to the input end of the mercury permeation mechanism (2). The input end of the mercury vapor output mechanism (3) is connected to the high-range output end (12) of the air supply mechanism (1) and the output end of the mercury permeation mechanism (2) through an air path component. The output end of the mercury vapor output mechanism (3) is respectively connected to the input end of a corresponding analysis device and a concentration detection mechanism (4). The signal output end of the concentration detection mechanism (4) is connected to the signal input end of the air supply mechanism (1).

2. A novel high-precision mercury generating device according to claim 1, characterized in that: The concentration detection mechanism (4) comprises a gas power device (41), a detection gas chamber (42), a light source assembly (43), a detection assembly (44) and a photometer control module (45); the mercury vapor output mechanism (3) is provided with a detection output end for outputting part of the mercury vapor for detection by the concentration detection mechanism (4) to achieve concentration adjustment of the mercury vapor; the mercury vapor output mechanism (3) is provided with a detection output end for outputting part of the mercury vapor for detection by the concentration detection mechanism (4) to achieve concentration adjustment of the mercury vapor; the gas inlet end of the detection gas chamber (42) is connected to the detection output end of the mercury vapor output mechanism (3); the gas outlet end of the detection gas chamber (42) is connected to a corresponding gas collection device through the gas power device (41); a chamber for mercury vapor to pass through is provided in the detection gas chamber (42); the light source assembly (43) and the detection assembly (44) are arranged at intervals at two ends of the chamber of the detection gas chamber (42); and the light source assembly (43) and the detection assembly (44) are both connected to the photometer control module (45).

3. A novel high-precision mercury generating device according to claim 2, characterized in that: The concentration detection mechanism (4) further comprises a photometer mounting bracket (46), a light source emitting part (47), a light source receiving part (48) and a first temperature regulating mechanism (49) for regulating the temperature of mercury vapor in the concentration detection mechanism (4) to a preset standard temperature. The light source emitting part (47) and the light source receiving part (48) are both mounted on the photometer mounting bracket (46). The air inlet end of the detection gas chamber (42) is connected to the detection output end of the mercury vapor output mechanism (3) through the light source emitting part (47). The air outlet end of the detection gas chamber (42) is connected to the gas power device (41) through the light source receiving part (48). The light emitting part of the light source assembly (43) is arranged inside the light source emitting part (47) and is connected to the chamber of the detection gas chamber (42). The detection part of the detection assembly (44) is arranged inside the light source receiving part (48) and is connected to the chamber. The temperature regulating end of the first temperature regulating mechanism (49) is arranged inside the light source emitting part (47).

4. A novel high-precision mercury generating device according to claim 1, characterized in that: The concentration detection mechanism (4) is also provided with a standard gas inlet end for introducing standard gas for calibration.

5. A novel high-precision mercury generating device according to claim 4, characterized in that: The mercury infiltration mechanism (2) comprises a mercury infiltration furnace (21), a infiltration furnace control module (22), a mercury infiltration tube (23) and a second temperature regulating mechanism (24) for regulating the temperature of the mercury infiltration furnace (21) to a preset standard temperature; a mercury infiltration chamber for mounting the mercury infiltration tube (23) is provided inside the mercury infiltration furnace (21); the mercury infiltration tube (23) is arranged in the mercury infiltration chamber of the mercury infiltration furnace (21); a temperature regulating end and a temperature detecting end of the temperature regulating mechanism are both mounted on the mercury infiltration furnace (21); a control end of the infiltration furnace control module (22) is connected to the second temperature regulating mechanism (24); a signal input end of the infiltration furnace control module (22) is connected to a signal output end of a concentration detecting mechanism (4); an air inlet end of the mercury infiltration chamber of the mercury infiltration furnace (21) is connected to a low-range output end (11) of an air supply mechanism (1); and an air outlet end of the mercury infiltration chamber of the mercury infiltration furnace (21) is connected to an input end of a mercury vapor output mechanism (3).

6. A novel high-precision mercury generating device according to claim 1, characterized in that: A preheating pipe (211) arranged in a zigzag pattern is provided in the mercury infiltration furnace (21); the temperature regulating end of the second temperature regulating mechanism (24) is connected to the preheating pipe (211); and the air inlet end of the mercury infiltration chamber of the mercury infiltration furnace (21) is connected to the low-range output end (11) of the air supply mechanism (1) via the preheating pipe (211).

7. A novel high-precision mercury generating device according to claim 6, characterized in that: The mercury vapor output mechanism (3) is provided with a purification mechanism (31) for balancing the pressure in the system. The purification mechanism (31) is filled with a filler for purifying mercury vapor. Part of the mercury vapor in the mercury vapor output mechanism (3) is purified by the purification mechanism (31) and then output to the outside.

8. A control method for a high-precision mercury generator, using a novel high-precision mercury generator as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Initialize the high-precision mercury generator by introducing dilution gas; S2: setting the required mercury vapor concentration, starting the low-range output end (11) of the gas supply mechanism (1) to pass the dilution gas into the mercury penetration mechanism (2) to perform mercury penetration to generate pure mercury vapor; S3: the pure mercury vapor generated by the mercury penetration mechanism (2) and the dilution gas outputted from the high-range output end (12) of the gas supply mechanism (1) are introduced into the mercury vapor output mechanism (3) for dilution, and the pure mercury vapor is diluted by adjusting the output power of the high-range output end (12) of the gas supply mechanism (1); S4: The diluted mercury vapor is passed into a concentration detection mechanism (4) for concentration detection, and the concentration information is fed back to the gas supply mechanism (1) to control the output power of the high-range output end (12) of the gas supply mechanism (1). When the concentration of the diluted mercury vapor reaches a set concentration, the mercury vapor is output by the mercury vapor output mechanism (3).

9. A novel high-precision mercury generating device according to claim 1, characterized in that: In the step S2, the following steps are also included: adjusting the working temperature of the mercury penetration mechanism (2) during the mercury penetration operation to a preset standard temperature; In the step S4, the following step is also included: adjusting the working temperature of the concentration detection mechanism (4) when performing concentration detection to a preset standard temperature.

10. A novel high-precision mercury generating device according to claim 1, characterized in that: In the S2, the following step is also included, in which the gas pressure inside the high-precision mercury generating device is balanced by purifying the pure mercury vapor generated by the diverting part and then discharging it.

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