CN113654937A

CN113654937A - Measuring device

Info

Publication number: CN113654937A
Application number: CN202110934259.3A
Authority: CN
Inventors: 吴继权; 程静; 马怀宇; 徐艳; 黄容
Original assignee: Shenzhen Institute Of Quality And Safety Inspection And Testing
Current assignee: Shenzhen Institute Of Quality And Safety Inspection And Testing
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-11-16

Abstract

The invention discloses a measuring device which comprises a mounting seat, a steam-water mixer, a weighing device and a temperature measuring device, wherein the steam-water mixer, the weighing device and the temperature measuring device are arranged on the mounting seat, the steam-water mixer comprises a shell, a condensation cavity used for containing cooling liquid is formed in the shell, an air inlet communicated with the condensation cavity is formed in the shell, a steam inlet pipe is inserted into the air inlet, one end of the steam inlet pipe is communicated with a steam input device to be measured, the other end of the steam inlet pipe is used for extending into the cooling liquid and inputting steam to be measured into the steam-water mixer, so that the cooling liquid condenses the steam to be measured to form a mixed liquid, and a pressure measuring device used for measuring the pressure value of the steam to be measured is arranged on the steam inlet pipe. According to the technical scheme provided by the invention, the mass of the steam to be measured is obtained by a weighing device through a method for condensing the steam to be measured, the pressure value of the steam to be measured is obtained by a pressure measuring device, and the temperature of the cooling liquid and the temperature of the steam to be measured are measured by a temperature measuring device, so that the humidity of the steam to be measured is finally obtained, and the measuring equipment for measuring the steam humidity of the industrial boiler is provided.

Description

Measuring device

Technical Field

The invention relates to the field of industrial equipment, in particular to measuring equipment.

Background

Steam humidity is an important factor for representing steam quality, and not only influences the economy and safety of boiler operation, but also influences subsequent processes and product quality. At present, steam humidity measurement is only applied to a small amount of steam turbines at the last stage of a thermal power station, and the steam turbines are expensive in manufacturing cost and are all fixed devices. However, the industrial boiler has the disadvantages of fast change of steam humidity, wide range, large change of initial conditions, and frequent off-line detection, and no effective saturated steam humidity detection device exists at present, which causes the vacancy of the industrial boiler in steam humidity detection.

Disclosure of Invention

The invention mainly aims to provide measuring equipment, and aims to provide measuring equipment for measuring steam humidity of an industrial boiler.

To achieve the above object, the present invention provides a measuring apparatus, wherein the measuring apparatus comprises:

a mounting seat is arranged on the base plate,

the steam-water mixer is arranged on the mounting seat and comprises a shell, a condensation cavity is formed in the shell and used for containing cooling liquid, and an air inlet communicated with the condensation cavity is formed in the shell;

the steam inlet pipe penetrates through the air inlet, one end of the steam inlet pipe is used for being communicated with a steam input device to be tested, and the other end of the steam inlet pipe is used for extending into the cooling liquid and inputting the steam to be tested into the steam-water mixer so that the cooling liquid condenses the steam to be tested into a mixed liquid;

the pressure measuring device is arranged on the steam inlet pipe and used for measuring the pressure value of the steam to be measured;

the weighing device is arranged on the mounting seat and used for measuring the weight of the steam-water mixer so as to obtain the mass of the steam to be measured, and the mass of the steam to be measured is the weight difference between the mixed liquid and the cooling liquid; and the number of the first and second groups,

the temperature measuring device is arranged on the mounting seat and used for measuring the temperature of the cooling liquid, the mixed liquid and the steam to be measured so as to obtain the humidity of the steam to be measured.

Optionally, the measuring equipment further comprises an automatic control system, wherein the automatic control system is electrically connected with the pressure measuring device, the weighing device and the temperature measuring device and used for obtaining the humidity value of the steam to be measured according to the pressure value of the steam to be measured, the mass of the steam to be measured, the temperature of the steam to be measured and the temperature of the cooling liquid and the mixed liquid.

Optionally, the mounting seat is formed with a mounting cavity, the steam-water mixer is arranged in the mounting cavity, and a vacuum layer is formed between the inner side wall of the mounting seat and the shell.

Optionally, the weighing device comprises a balance arranged at the bottom of the mounting seat, the upper side of the balance is used for bearing the steam-water mixer so as to measure the mass of the steam to be measured, and the balance is electrically connected with the automatic control system.

Optionally, the temperature measuring device includes a first temperature sensor and a second temperature sensor, a probe of the first temperature sensor is inserted into the cooling liquid to measure the temperature of the cooling liquid and the temperature of the mixed liquid, and the first temperature sensor is electrically connected to the automatic control system;

the second temperature sensor is arranged at the input end of the steam inlet pipe and used for measuring the temperature of the steam to be measured, and the second temperature sensor is electrically connected with the automatic control system.

Optionally, the steam inlet pipe includes a heating pipe section and an output pipe section that are sequentially connected in an air inlet direction, the heating pipe section is located outside the installation cavity and is used for heating the steam inlet pipe body, the output pipe section is located inside the installation cavity, and the pressure measuring device and the second temperature sensor are both arranged in the heating pipe section;

and a regulating valve is arranged between the heating pipe section and the input pipe section.

Optionally, the measuring apparatus further includes a circulating cooling device, the circulating cooling device is communicated with the condensation cavity, and the circulating cooling device is configured to circulate and convey the cooling liquid in the condensation cavity to adjust the temperature and the total amount of the cooling liquid.

Optionally, the shell is provided with a liquid inlet and a liquid outlet;

the circulating cooling device is provided with a cooling cavity, the cooling cavity is communicated with the condensation cavity through the liquid inlet and the liquid outlet, and a water outlet communicated with the cooling cavity is formed in the cooling cavity.

Optionally, the circulating cooling device further comprises a water level measuring device, a third temperature sensor and a water pump, the third temperature sensor is arranged in the cooling cavity, and the water pump is arranged in the liquid inlet;

the third temperature sensor is used for measuring the temperature value of the mixed liquid, the water level measuring device is used for measuring the water level value in the cooling cavity, and the automatic control system is electrically connected with the water level measuring device, the third temperature sensor and the water suction pump and is used for controlling the water suction pump to work according to the water level value and the temperature value.

Optionally, the mounting seat is made of a heat insulation material.

In the technical scheme provided by the invention, the measuring equipment comprises a mounting seat and a steam-water mixer arranged on the mounting seat, the steam-water mixer comprises a shell, a condensation cavity is formed on the shell and used for containing cooling liquid, an air inlet communicated with the condensation cavity is formed in the shell, a steam inlet pipe is inserted into the air inlet, one end of the steam inlet pipe is used for being communicated with a steam input device to be measured, the other end of the steam inlet pipe is used for extending into the cooling liquid and used for inputting the steam to be measured into the steam-water mixer so as to enable the cooling liquid to condense the steam to be measured into a mixed liquid, a pressure measuring device used for measuring the pressure value of the steam to be measured is arranged on the steam inlet pipe, a weighing device used for measuring the weight of the steam-water mixer is also arranged on the mounting seat, and the quality of the steam to be measured is obtained through the weighing device, the quality of the steam to be measured is the weight difference of the mixed liquid and the cooling liquid, the mounting seat is further provided with a temperature measuring device for measuring the temperature of the cooling liquid and the steam to be measured, so that the humidity of the steam to be measured is obtained, the quality of the steam to be measured is obtained by a weighing device through a method for condensing the steam to be measured, the pressure value of the steam to be measured is obtained by a pressure measuring device, the temperature of the cooling liquid and the steam to be measured is measured by the temperature measuring device, and the humidity of the steam to be measured is finally obtained, so that the measuring equipment for measuring the steam humidity of the industrial boiler is provided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic plan view of a measurement apparatus according to an embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In order to solve the above problem, the present invention provides a measuring apparatus 100, and fig. 1 is a specific embodiment of the measuring apparatus 100 provided by the present invention.

Referring to fig. 1, the measuring apparatus 100 includes a mounting base 1, a steam-water mixer 2, a steam inlet pipe 3, a pressure measuring device 4, a weighing device 5 and a temperature measuring device 6, the steam-water mixer 2 is disposed on the mounting base 1 and includes a housing 21, the housing 21 is formed with a condensation chamber for containing a cooling liquid 200, the housing 21 is provided with an air inlet communicated with the condensation chamber, the steam inlet pipe 3 is disposed through the air inlet, one end of the steam inlet pipe 3 is used for communicating with a steam input device to be measured, and the other end is used for extending into the cooling liquid 200 to input the steam to be measured into the steam-water mixer 2, so that the cooling liquid 200 condenses the steam to be measured into a mixed liquid, the pressure measuring device 4 is disposed on the steam inlet pipe 3 for measuring a pressure value of the steam to be measured, the weighing device 5 is disposed on the mounting base 1, be used for measuring the weight of vapour-water blender 2 is in order to obtain the quality of the steam that awaits measuring, the quality of the steam that awaits measuring does the mixed liquid with the weight difference of coolant liquid 200, temperature measuring device 6 is located mount pad 1 is used for measuring coolant liquid 200 the mixed liquid with the temperature of the steam that awaits measuring, in order to obtain the humidity of the steam that awaits measuring.

In the technical scheme provided by the invention, a measuring device 100 comprises a mounting seat 1 and a steam-water mixer 2 arranged on the mounting seat 1, wherein the steam-water mixer 2 comprises a shell 21, a condensation cavity is formed on the shell 21 and is used for containing a cooling liquid 200, an air inlet communicated with the condensation cavity is formed on the shell 21, a steam inlet pipe 3 is inserted into the air inlet, one end of the steam inlet pipe 3 is used for being communicated with a steam input device to be measured, the other end of the steam inlet pipe is used for extending into the cooling liquid 200 and is used for inputting the steam to be measured into the steam-water mixer 2 so that the cooling liquid 200 condenses the steam to be measured into a mixed liquid, a pressure measuring device 4 used for measuring the pressure value of the steam to be measured is arranged on the steam inlet pipe 3, and a weighing device 5 used for measuring the weight of the steam-water mixer 2 is further arranged on the mounting seat 1, through weighing device 5 obtains the quality of the steam that awaits measuring, the quality of the steam that awaits measuring does mixed liquid with the weight of coolant liquid 200 is poor, mount pad 1 still is equipped with and is used for measuring coolant liquid 200 with the temperature measuring device 6 of the temperature of the steam that awaits measuring, thereby obtains the humidity of the steam that awaits measuring, through with the method of the steam condensation that awaits measuring, obtain with weighing device 5 the quality of the steam that awaits measuring obtains with pressure measuring device 4 the pressure value of the steam that awaits measuring, measure coolant liquid 200 with the temperature of the steam that awaits measuring with temperature measuring device 6, thereby finally obtain the humidity of the steam that awaits measuring to provide one kind and measure the measuring equipment 100 of the steam humidity of industrial boiler.

It should be noted that, in the prior art, the final steam humidity value can be calculated by the calculation formula of the steam humidity obtained by the enthalpy values of saturated steam and saturated water, the cooling water and the steam quality and the temperature rise after the steam and water are mixed. According to the scheme, the humidity of the steam to be detected can be calculated according to the temperature difference value of the cooling liquid 200 before and after the steam to be detected is condensed according to the quality, the pressure value and the temperature of the steam to be detected.

It can be understood that the steam inlet pipe 3 may be a single pipe or a plurality of pipes, and a plurality of pipes may be provided for better implementing the steam condensation.

Further, the humidity of the steam to be measured can be calculated through the measured values through a formula, the measuring equipment 100 further comprises an automatic control system 7, and the automatic control system 7 is electrically connected with the pressure measuring device 4, the weighing device 5 and the temperature measuring device 6 and used for obtaining the humidity value of the steam to be measured according to the pressure value of the steam to be measured, the quality of the steam to be measured, the temperature of the steam to be measured, the cooling liquid 200 and the temperature of the mixed liquid. In a concrete reality, all test data of temperature, pressure and quality are collected to the 19PCB automatic control system 7 through a data acquisition system, and a final steam humidity value is calculated through a pre-implanted formula (a calculation formula of steam humidity can be obtained through enthalpy values of saturated steam and saturated water, cooling water and steam quality and temperature rise after steam and water are mixed). The PCB autonomous system 7 also performs process automation control of the whole measurement process, including opening and closing of all solenoid valves, and opening and closing of heating lines and pumps. In addition, the PCB automatic control system 7 can also perform the functions of inputting test initial conditions, setting test time intervals, displaying acquired data and final test results, summarizing final results, drawing curves and the like, so that the measurement and calculation are more efficient and faster in a full-automatic mode.

Further, in order to enable the steam-water mixer 2 to ensure that the system heat dissipation is within an allowable range, in this embodiment, the mounting base 1 is formed with the mounting cavity 11, the steam-water mixer 2 is disposed in the mounting cavity 11, a vacuum layer is formed between the inner side wall of the mounting base 1 and the casing 21, because heat exchange is difficult to occur in the vacuum layer, the heat dissipation amount of the steam-water mixer 2 is within a measurement allowable range, so that the temperature measuring device 6 has a reliable calculation basis for measuring the temperature difference value of the cooling liquid 200 in the steam-water mixer 2, and measurement errors are reduced.

Specifically, weighing device 5 is including locating the balance 51 of mount pad 1 bottom, balance 51 upside is used for bearing vapour water mixer 2, through balance 51 can measure earlier the total weight of vapour water mixer 2, works as the steam that awaits measuring fills to reach the measurement standard in the condensation chamber, balance 51 can be after measuring the total weight of vapour water mixer 2, through twice measuring the weight difference of vapour water mixer 2 can measure the quality of steam that awaits measuring, because of balance 51 with autonomous system 7 electric connection, balance 51 can be with the weight value input of many times measurement autonomous system 7.

Specifically, in order to improve the measurement accuracy and achieve the measurement accuracy of the measurement apparatus 100, in the embodiment, the temperature measuring device 6 includes a first temperature sensor 61 and a second temperature sensor 62, and the temperature sensors are generally thermometers that reach thermal equilibrium through conduction or convection, so that the indication value of the thermometer can directly represent the temperature of the measured object. Temperature sensors generally have a high measurement accuracy. The thermometer can also measure the temperature distribution inside the object within a certain temperature measuring range. The probe of the first temperature sensor 61 is inserted into the cooling liquid 200 to measure the temperature of the cooling liquid 200 and the mixed liquid, the first temperature sensor 61 may include a plurality of temperature sensors, the probes of the plurality of temperature sensors are simultaneously inserted into the cooling liquid 200, and then an arithmetic mean of the plurality of temperature sensors is obtained through a measurement result, so that a measurement error may be further reduced, and the first temperature sensor 61 is electrically connected to the automatic control system 7 to transmit the measured data to the automatic control system 7. In order to measure the temperature of the steam, the second temperature sensor 62 is disposed at the input end of the steam inlet pipe 3, the second temperature sensor 62 is electrically connected to the automatic control system 7, and can transmit the measured temperature value data of the steam to be measured to the automatic control system 7, so that the automatic control system 7 obtains the temperature difference data of the cooling liquid 200 and the temperature value of the steam.

Further, in order to enable the steam to be measured in the steam inlet pipe 3 to maintain its inherent temperature value, so as not to have heat loss before entering the condensation chamber, in this embodiment, the steam inlet pipe 3 includes a heating pipe section 31 and an output pipe section 32 connected in sequence in the air inlet direction, the heating pipe section 31 is located outside the installation chamber 11 and is used for heating the pipe body of the steam inlet pipe 3, so that the steam inlet pipe 3 located outside the condensation chamber keeps consistent with the temperature of the steam flowing in the steam inlet pipe 3 at any time, the output pipe section 32 is located inside the installation chamber 11, the pressure measuring device 4 and the second temperature sensor 62 are both located in the heating pipe section 31, a regulating valve 33 is arranged between the heating pipe section 31 and the input pipe section, after the input amount of the steam to be measured reaches a certain standard, the regulating valve 33 is closed so that the pipe section located in the condensation chamber and the steam-water mixer 2 form a closed measuring space.

Further, in order to facilitate the measuring apparatus 100 to repeatedly measure the steam to be measured, it is necessary to enable the cooling liquid 200 in the condensation chamber to reach an initialized standard, that is, the quality and the temperature of the cooling water are both controlled to be in an initial state, in this embodiment, the measuring apparatus 100 further includes a circulating cooling device 8, the circulating cooling device 8 is communicated with the condensation chamber, and the cooling liquid 200 is circularly conveyed through the circulating cooling device 8 to adjust the temperature and the total amount of the cooling liquid 200, so that the condensed water in the condensation chamber maintains an initialized state before detecting new steam to be measured each time.

Specifically, the housing 21 is provided with a liquid inlet and a liquid outlet, the circulating cooling device 8 is provided with a cooling cavity, the cooling cavity is communicated with the condensation cavity through the liquid inlet and the liquid outlet, the cooling cavity is further provided with a water outlet 84 communicated with the cooling cavity, when circulation is needed, the liquid outlet can be opened first, the mixed liquid in the condensation cavity flows into the cooling cavity, the mixed liquid is cooled in the cooling cavity and reaches the temperature standard of the cooling liquid 200, the water outlet 84 can be opened, because the amount of the mixed liquid formed by the liquid condensed by the steam to be measured and the original cooling liquid 200 is larger than the amount of the required cooling liquid 200, the redundant liquid of the mixed liquid can be discharged from the water outlet 84, and then the residual mixed liquid, namely the cooling liquid 200 is pumped into the condensation cavity from the liquid inlet again, forming a new cooling liquid 200 for detecting new detection steam, and the liquid outlet is provided with a solenoid valve, and the water discharge amount is controlled by closing and opening the solenoid valve.

Further, in order to facilitate the control of the water discharge of the water outlet 84, in this embodiment, the circulating cooling device 8 further includes a water level measuring device 81, a third temperature sensor 82 and a water pump 83, the third temperature sensor 82 is disposed in the cooling cavity, the water pump 83 is disposed in the liquid inlet, the third temperature sensor 82 is configured to measure the temperature value of the mixed liquid, the water level measuring device 81 is configured to measure the water level value in the cooling cavity, the automatic control system 7 is electrically connected to the water level measuring device 81, the third temperature sensor 82 and the water pump 83, and is configured to control the water pump 83 to operate according to the water level value and the temperature value, so that the water level of the mixed liquid in the cooling cavity can be measured by the water level monitoring device because the volume of the mixed liquid is greater than the required volume of the cooling liquid 200, when the mixed liquid is partially discharged through the water outlet 84, the water level monitoring device can monitor the water level height of the liquid in the cooling cavity in real time, and can accurately control the water discharge amount in time so as to ensure that the mixed liquid can reach the initial amount of the cooling liquid 200.

Further, in order to ensure that the steam-water mixer 2 can ensure that the system heat dissipation is within the allowable range, in the present embodiment, the material of the mounting seat 1 is a heat insulation material, and the heat insulation material generally refers to a material with heat insulation and heat preservation functions. Magnesium silicate, alumina silicate fiber, floating beads in fly ash, polycrystalline mullite fiber, high alumina hollow ball, etc. may be selected.

The measuring equipment further comprises an outer protective sleeve 10 made of metal, and the outer protective sleeve 10 wraps the whole system, so that the detecting equipment forms a whole and is convenient to move.

The process method of the measuring device 100 for detecting the steam to be detected is as follows:

the saturated steam to be measured flows into a steam circulation channel through the steam inlet pipe 3 through the electromagnetic valve 91, the steam pressure is measured on the heating section 31 through the pressure measuring device 4, the temperature of the heating section 31 is kept consistent with the temperature of the steam flowing in the steam inlet pipe 3 at any time, and the input signals of the second temperature sensor 62 and the steam pressure are intelligently controlled by the automatic control system 7. And the steam to be detected is mixed with the cooling water in the steam-water mixer 2, the temperature of the cooling water is 20 ℃, and the steam is completely condensed in the cooling water by controlling the quality of the steam.

The control method comprises the following steps: when the mass of the balance 51 increases to 1/8 of the mass of the cooling water, the regulating valve 33 is closed. After the steam and water are mixed, the mass of the cooling liquid 200 is increased to form the mixed liquid, the mass of the steam-water mixer 2 filled with the cooling water and the mass of the steam-water mixer 2 filled with the mixed liquid are tested through the balance 51, and the difference value of the two is the mass of the input steam to be tested. The first temperature sensor 61 measures the temperature of the cooling water and the temperature of the mixed liquid, the arithmetic mean of the two temperature sensors is taken as the measurement result, and the difference between the temperature of the cooling liquid 200 and the temperature of the mixed liquid is the temperature rise of the cooling liquid 200. After primary mixing is finished, the mixed liquid is guided into the circulating cooling device 8 through the water suction pump 83, the temperature of the mixed liquid is cooled to 20 ℃, the water level measuring device 81 discharges the water increased due to steam condensation through the first electromagnetic valve 91 through the water discharge port 84, the water discharge amount is realized through the 19PCB automatic control system 7 through the water level measuring device 81 and the second electromagnetic valve 92, and the cooling temperature is realized through the 19PCB automatic control system 7 through the third temperature sensor 82. After cooling and water drainage are completed, the cooling water enters the steam-water mixer 2 through the third electromagnetic valve 92, and the next measurement is started.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A measurement device, comprising:

a mounting seat is arranged on the base plate,

2. The measurement apparatus according to claim 1, further comprising an automatic control system electrically connected to the pressure measurement device, the weighing device and the temperature measurement device for obtaining the humidity value of the steam to be measured according to the pressure value of the steam to be measured, the mass of the steam to be measured, the temperature of the steam to be measured, and the temperature of the cooling liquid and the mixed liquid.

3. The measuring apparatus according to claim 2, wherein the mounting seat is formed with a mounting cavity, the steam-water mixer is provided in the mounting cavity, and a vacuum layer is formed between an inner side wall of the mounting seat and the housing.

4. The measuring device according to claim 2, wherein the weighing device comprises a balance arranged at the bottom of the mounting seat, the upper side of the balance is used for bearing the steam-water mixer so as to measure the mass of the steam to be measured, and the balance is electrically connected with the automatic control system.

5. The measuring device according to claim 2, wherein the temperature measuring device comprises a first temperature sensor and a second temperature sensor, a probe of the first temperature sensor is inserted into the cooling liquid to measure the temperature of the cooling liquid and the mixed liquid, and the first temperature sensor is electrically connected with the automatic control system;

6. The measurement device according to claim 5, wherein the steam inlet pipe comprises a heating section and an output section which are connected in sequence in the air inlet direction, the heating section is positioned outside the installation cavity and used for heating the steam inlet pipe body, the output section is positioned inside the installation cavity, and the pressure measuring device and the second temperature sensor are arranged on the heating section;

7. The measuring apparatus according to claim 2, further comprising a circulating cooling device, the circulating cooling device being disposed in communication with the condensing chamber, the circulating cooling device being configured to circulate the cooling fluid in the condensing chamber to adjust the temperature and the amount of the cooling fluid.

8. The measurement apparatus of claim 7, wherein the housing defines a liquid inlet and a liquid outlet therethrough;

9. The measuring device according to claim 3, wherein the circulating cooling device further comprises a water level measuring device, a third temperature sensor and a water pump, the third temperature sensor is arranged in the cooling cavity, and the water pump is arranged in the liquid inlet;

10. The measurement device of claim 9, wherein the mount is thermally insulating.