CN108592997B - Horizontal circular tube steam condensation heat transfer thermal parameter measuring device - Google Patents
Horizontal circular tube steam condensation heat transfer thermal parameter measuring device Download PDFInfo
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- CN108592997B CN108592997B CN201810372401.8A CN201810372401A CN108592997B CN 108592997 B CN108592997 B CN 108592997B CN 201810372401 A CN201810372401 A CN 201810372401A CN 108592997 B CN108592997 B CN 108592997B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a device for measuring steam condensation heat transfer thermal parameters of a horizontal round tube, which comprises: the system comprises an inlet steam flowmeter, a horizontal condenser pipe, a cooling water pipe, a wall temperature measuring component, an in-pipe temperature measuring component, a pressure measuring component and a sealing component; the inlet steam flowmeter is arranged at the upstream of the horizontal condensation pipe, and the cooling water pipe is arranged outside the horizontal condensation pipe; the wall temperature measuring assembly is used for measuring the outer wall temperature and the middle wall temperature of the horizontal condenser pipe after penetrating through the cooling water pipe for measurement; the temperature measuring component in the tube is arranged in the horizontal condenser tube and is used for measuring the temperature of steam or vapor-liquid two-phase fluid in the horizontal condenser tube; the pressure measuring assembly is arranged at the downstream of the horizontal condenser pipe and used for measuring the fluid pressure of the horizontal condenser pipe; the sealing assembly is arranged at the end part of the horizontal condensation pipe; the defects of thermal parameter measurement in the steam condensation process are overcome, and the technical effects of the research on the condensation heat transfer coefficient and the heat transfer characteristic of the steam and the steam-water vapor two-phase flow in the horizontal round pipe are realized.
Description
Technical Field
The invention relates to the field of thermal parameter measurement, in particular to a device for measuring a thermal parameter of steam condensation heat transfer of a horizontal round pipe.
Background
When the saturated steam flows in the horizontal heat transfer round pipes of the heat exchanger, heat is transferred from the saturated steam to the fluid outside the heat exchanger due to the low temperature of the fluid outside the heat exchanger. The saturated steam then gradually condenses into water. The saturated steam is continuously cooled along the flow direction, so that different types of vapor-liquid two-phase flow patterns appear along the flow direction, namely mist flow, annular flow, semi-annular flow, wave flow, laminar flow, single-phase water and the like. The steam condensation heat transfer coefficients of different flow patterns have great difference, and in order to obtain the condensation heat transfer coefficients and heat transfer characteristics of steam in the horizontal round pipe and steam-liquid two-phase flow, thermal parameters influencing the condensation heat transfer, such as steam temperature, condensation water temperature, pressure, steam flow rate and the like, need to be measured in a test mode.
Disclosure of Invention
The invention provides a steam condensation heat transfer thermal parameter measuring device for a horizontal round pipe, which overcomes the defect of thermal parameter measurement in the steam condensation process and realizes the technical effects of the condensation heat transfer coefficient and the heat transfer characteristic research of steam and steam-water vapor two-phase flow in the horizontal round pipe.
In order to achieve the above object, the present application provides a device for measuring thermal parameters of steam condensation heat transfer of a horizontal round tube, the device comprising:
the system comprises an inlet steam flowmeter, a horizontal condenser pipe, a cooling water pipe, a wall temperature measuring component, an in-pipe temperature measuring component, a pressure measuring component and a sealing component;
the inlet steam flowmeter is arranged at the upstream of the horizontal condenser pipe, and the cooling water pipe is arranged outside the horizontal condenser pipe; the wall temperature measuring component is used for measuring the outer wall temperature and the middle wall temperature of the horizontal condenser pipe after penetrating through the cooling water pipe for measurement; the temperature measuring component in the pipe is arranged in the horizontal condenser pipe and is used for measuring the temperature of steam or vapor-liquid two-phase fluid in the horizontal condenser pipe; the pressure measuring assembly is arranged at the downstream of the horizontal condenser pipe and used for measuring the fluid pressure of the horizontal condenser pipe; the sealing assembly is disposed at an end of the horizontal condensation duct. The cooling water pipe is provided with a cooling water outlet and a cooling water inlet. The device can be used for measuring the thermal parameters of the steam mixture in the horizontal round pipe, such as flow pattern, temperature, pressure, flow and the like.
The venturi tube considering heat dissipation compensation in the invention can accurately measure the steam flow; the wall temperature measuring device effectively solves the problems that the penetration of a thermocouple, the cold water of an outer pipe influence the wall temperature measuring precision and the like; the position and the depth of the measuring hole are reasonably designed, and the local heat flow of the steam condensation heat transfer of the horizontal round pipe can be obtained; the temperature of the fluid at each position along the inner edge of the horizontal circular pipe can be measured through the matching of the sealing assembly and the temperature measuring assembly in the pipe; the temperature and pressure measuring assembly has the advantages of simple structure, mature manufacturing process and lower cost; the experimental method and the device successfully solve the problem of measuring key thermal parameters in the steam condensation process, and lay a solid foundation for the research of the steam condensation phenomenon of the horizontal round tube.
Further, the inlet steam flow meter is specifically a venturi tube flow meter, and the venturi tube flow meter is provided with an intelligent differential pressure transmitter for measuring the flow of saturated steam; the venturi tube flowmeter is provided with an auxiliary electric heating wire and a heat preservation device, and the heating power of the auxiliary electric heating wire is controlled by calculating the heat dissipation capacity of the venturi tube.
Furthermore, a plurality of groups of first wall temperature measuring holes which are symmetrical about the center of the horizontal condenser pipe are arranged on the pipe wall of the horizontal condenser pipe along the flow direction, and each group of first wall temperature measuring holes comprises a plurality of second wall temperature measuring holes which are symmetrical about the center of the horizontal condenser pipe; the second wall temperature measuring hole comprises a deep wall temperature measuring hole and a shallow wall temperature measuring hole, and the deep wall temperature measuring hole is used for measuring the wall temperature of the middle position of the pipe wall of the horizontal condensing pipe; the shallow wall temperature measuring hole is used for measuring the wall temperature of the 3/4 position of the wall of the horizontal condenser pipe from inside to outside.
Further, deep wall temperature measuring hole and shallow wall temperature measuring hole all include: the counter bore is connected with the first through hole through the transition section.
Furthermore, a plurality of groups of wall temperature measuring thermocouple penetration holes which are symmetrical about the center of the cooling water pipe are arranged on the pipe wall of the cooling water pipe, and each group of wall temperature measuring thermocouple penetration holes comprises a plurality of second through holes; the wall temperature measuring thermocouple penetration hole is aligned with the first wall temperature measuring hole.
Furthermore, the wall temperature measuring component comprises an armored thermocouple and a sleeve, the armored thermocouple is inserted into the sleeve, the processing end of the sleeve is processed into 45 degrees, and the other end of the sleeve is fixedly connected with the armored thermocouple; the armored thermocouple and the sleeve are integrally inserted into the second through hole and the second wall temperature measuring hole; the temperature measuring end of the armored thermocouple is inserted into the bottom of the second wall temperature measuring hole, and the processing end of the sleeve is in 45-degree slope contact with the transition section of the wall temperature measuring hole; the sleeve is fixedly connected with the cooling water pipe.
Further, the outer wall temperature of the horizontal condenser pipe is measured by 4 temperature measuring components: tw11, tw12, tw13 and Tw14,8 temperature measuring components measure the wall temperature intermediate temperature of the horizontal condenser tube: tw21, tw22, tw23, tw24, tw31, tw32, tw33, tw34; obtaining heat flow per unit length by wall temperature internal temperature
Wherein r is 1 Measuring the radius at a location for Tw21, r 2 The radius at the location is measured for Tw 31.
Further, the installation method of the temperature measurement component comprises the following steps:
(1) Bending a circular tube with the diameter of 20mm into an L shape with the angle of 90 degrees;
(2) 15 holes with the diameter of 1mm at equal intervals are formed in the outer side of the short side of the L-shaped pipe;
(3) Inserting the armored thermocouple into the L-shaped pipe;
(4) Sealing and welding the penetration hole of the armored thermocouple and the wall temperature measuring thermocouple, and sealing the end head of the short side of the L-shaped pipe by using a blind plate;
(5) And tapping a thread outside the long side of the L-shaped pipe.
Furthermore, a pressure measuring component is welded on the outer wall of the horizontal condenser pipe, and the pressure measuring component is connected to an intelligent differential pressure transmitter to measure the pressure of the horizontal condenser pipe; the sealing assembly is in threaded connection with the temperature measuring assembly in the pipe, the temperature measuring assembly in the clockwise rotating pipe can measure the fluid temperature at the upper stream of the horizontal condenser pipe, and the temperature measuring assembly in the anticlockwise rotating pipe can measure the fluid temperature at the lower stream of the horizontal condenser pipe.
One or more technical solutions provided by the present application have at least the following technical effects or advantages:
and (3) accurately measuring the temperature, pressure, flow and flow pattern and other thermal parameters of the steam-water-liquid two-phase flow mixture in the horizontal round pipe in real time in the condensation process to obtain the condensation characteristic of the steam in the horizontal round pipe.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention;
FIG. 1 is a schematic view of the experimental apparatus of the present application;
FIG. 2 is a schematic view of the wall temperature measurement hole location in the present application;
FIG. 3 is a schematic view of the structure of the measuring hole in the present application;
FIG. 4 is a schematic diagram of the thermocouple penetration hole location in the present application;
FIG. 5 is a schematic view of a temperature measurement assembly of the present application;
FIG. 6 is a schematic view of the end structure of the cannula of the subject application;
FIG. 7 is a schematic view of the installation of the wall temperature measuring assembly in the present application;
FIG. 8 is a schematic structural view of an in-tube thermometry assembly of the present application;
FIG. 9 is a schematic view of the seal assembly and the in-tube temperature measurement assembly of the present application.
Detailed Description
The invention provides a steam condensation heat transfer thermal parameter measuring device for a horizontal round pipe, overcomes the defect of thermal parameter measurement in the steam condensation process, and realizes the technical effects of the research on the condensation heat transfer coefficient and the heat transfer characteristic of steam and steam-water vapor two-phase flow in the horizontal round pipe.
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1-9, saturated steam first enters the horizontal condenser tube 2 through an inlet steam flow meter 1. The inlet steam flow meter 1 adopts a Venturi tube flow meter and an intelligent differential pressure transmitter to measure the flow of saturated steam. In order to prevent steam from condensing at the inlet steam flowmeter 1, the invention improves a standard Venturi tube, an auxiliary electric heating wire and a heat preservation device are designed on the Venturi tube, and the heating power of the auxiliary electric heating wire is controlled by calculating the heat dissipation capacity of the Venturi tube so as to ensure that the fluid measured by the Venturi tube is saturated steam. The horizontal condenser tube 2 adopts an industry standard heat transfer tube, and 8 groups of wall temperature measuring holes are designed on the tube wall along the flow direction, as shown in figure 2. Each 1 group of wall temperature measurement holes consists of 8 wall temperature measurement holes. The 8 wall temperature measurement holes are divided into two groups of depth and depth, and each group has 4. The 4 deep wall temperature measuring holes are used for measuring the wall temperature of the middle-level position of the pipe wall of the horizontal condensation pipe 2, and the 4 shallow wall temperature measuring holes are used for measuring the wall temperature of the 3/4 position of the pipe wall of the horizontal condensation pipe 2. The structure of the measuring orifice is shown in fig. 3. The measuring hole consists of a counter bore with the diameter of 1mm, a through hole with the diameter of 2mm and a transition section with the inclination angle of 45 degrees. The cooling water pipe 3 adopts an industry standard heat transfer pipe, and 8 groups of wall temperature measuring thermocouple penetration holes are designed on the pipe wall, as shown in figure 4. Each set of wall temperature measuring thermocouple penetration holes included 9 through holes of 2mm diameter. The cooling water pipe 3 is welded on the horizontal condensation pipe 2, and 8 groups of wall temperature measuring thermocouple penetration holes of the cooling water pipe 3 and 8 groups of wall temperature measuring holes on the horizontal condensation pipe 2 need to be aligned before welding so as to be welded. And after the cooling water pipe 3 and the horizontal condenser pipe 2 are welded, a wall temperature measuring component 4 is installed. The structure of the wall temperature measuring unit 4 is shown in fig. 5. The wall temperature measuring assembly 4 is mainly composed of an armored thermocouple 8 and a sleeve 9. The diameter of the armored thermocouple 8 is 1mm, the inner diameter of the sleeve 9 is 1mm, and the wall thickness is 0.5mm. The installation method of the wall temperature measuring unit 4 for measuring the internal wall temperature of the horizontal condensation duct 2 is as follows:
one end of a sleeve 9 with the inner diameter of 1mm and the wall thickness of 0.5mm is processed into an angle of 45 degrees;
secondly, inserting the armored thermocouple 8 into the sleeve 9, wherein the temperature measuring end of the armored thermocouple 8 is in the same direction as the processed end of the sleeve 9;
and thirdly, integrally inserting the armored thermocouple 8 and the sleeve 9 into the through hole of the cooling water pipe 3 and the wall temperature measuring hole of the horizontal condensation pipe 2. The temperature measuring end of the armored thermocouple 8 is inserted into the bottom of the wall temperature measuring hole of the horizontal condenser tube 2, and the processing end of the sleeve 9 is tightly contacted with a 45-degree slope of the transition section of the wall temperature measuring hole;
welding the temperature measuring end of the armored thermocouple 8 at the bottom of the wall temperature measuring hole by using a spot welding machine, and welding the sleeve 9 on the 45-degree slope of the transition section of the wall temperature measuring hole;
fifthly, after the armored thermocouple 8 and the sleeve 9 are firmly welded, the sleeve 9 is welded on the cooling water pipe 3;
sixthly, the other end of the sleeve 9 is sheathed with the thermocouple 8 for welding treatment;
and (seventhly), connecting the lead of the armored thermocouple 8 into the measurement and control system.
In the installation method, the temperature measuring end of the armored thermocouple 8 is welded at the bottom of the wall temperature measuring hole by a spot welding machine, so that the measuring precision can be effectively ensured; the 45-degree angle of the sleeve end is tightly combined with the 45-degree slope of the transition section of the wall temperature measuring hole, and then the spot welding machine is assisted to carry out sealing welding treatment, so that cold water of the cooling water pipe 3 can be prevented from entering the measuring hole through the design, and the measuring accuracy is guaranteed.
The installation method of the wall temperature measuring component 4 for measuring the outer wall temperature of the horizontal condensation pipe 2 comprises the following steps:
one end of a sleeve 9 with the inner diameter of 1mm and the wall thickness of 0.5mm is processed into the shape shown in figure 6;
secondly, inserting the armored thermocouple 8 into the sleeve 9, wherein the temperature measuring end of the armored thermocouple 8 is in the same direction as the processed end of the sleeve 9;
thirdly, integrally inserting the armored thermocouple 8 and the sleeve 9 into the through hole of the cooling water pipe 3, wherein the temperature measuring end of the armored thermocouple 8 and the processing end of the sleeve 9 are tightly contacted with the outer wall surface of the horizontal condenser pipe 2;
welding the temperature measuring end of the armored thermocouple 8 and the processing end of the sleeve 9 on the outer wall surface of the horizontal condensation pipe 2 by adopting a spot welding machine;
fifthly, after the armored thermocouple 8 and the sleeve 9 are firmly welded, the sleeve 9 is welded on the cooling water pipe 3;
sixthly, the other end of the sleeve 9 is sheathed with the thermocouple 8 for welding treatment;
and (seventhly), connecting the lead of the armored thermocouple 8 into the measurement and control system.
In the installation method, the temperature measuring end of the armored thermocouple 8 is welded on the outer surface of the horizontal condenser tube 2 by a spot welding machine, so that the temperature measuring precision of the outer wall surface can be effectively ensured; one end of the sleeve is processed according to the outer diameter of the horizontal condenser pipe 2, and then the spot welding machine is assisted to carry out sealing welding processing, so that cold water of the cooling water pipe 3 can be prevented from contacting a thermocouple at a measuring point, and the measuring accuracy is guaranteed.
Fig. 7 is a schematic view of the installation of the wall temperature measuring assembly 4. The 4 temperature measuring assemblies measure the outer wall temperatures (Tw 11, tw12, tw13, and Tw 14) of the horizontal condensation duct 2, and the 8 temperature measuring assemblies measure the inner wall temperatures (Tw 21, tw22, tw23, tw24, tw31, tw32, tw33, and Tw 34) of the horizontal condensation duct 2. The heat flux per unit length can be obtained by the wall temperature internal temperature (Tw 21, tw22, tw23, tw24, tw31, tw32, tw33 and Tw 34)
Wherein r is 1 Radius at the measurement location for Tw21, r 2 The radius at the location is measured for Tw 31.
FIG. 8 is a schematic structural diagram of the in-tube temperature measurement assembly 5. The installation method of the temperature measuring component 5 is as follows:
firstly, completing 90-degree L-shaped circular tubes with the diameter of 20 mm;
15 holes with the diameter of 1mm are formed in the outer side of the short side of the L-shaped pipe at equal intervals;
(III) inserting thermocouples into the L-shaped pipe in sequence according to the arrangement of the figure 8;
sealing and welding the thermocouple and the penetration hole, wherein the end of the short side of the L-shaped pipe is sealed by a blind plate;
and (V) tapping the outer side of the long side of the L-shaped pipe.
The pressure measuring component 6 is welded on the outer wall of the horizontal condenser pipe 2, and the pressure measuring component 6 is connected into the intelligent differential pressure transmitter to measure the pressure of the horizontal condenser pipe 2.
The main functions of the seal assembly 7 are two: sealing the downstream of the horizontal condenser pipe 2, so that the device can be used for high-temperature and high-pressure experimental research; and secondly, guiding the temperature measuring assembly 5 in the tube. The sealing assembly 7 is connected with the temperature measuring assembly 5 in the pipe as shown in fig. 9. The sealing component 7 is connected with the temperature measuring component 5 in the tube through threads, the temperature measuring component 5 in the tube is rotated 360 degrees clockwise or anticlockwise, and the temperature of steam, steam-liquid two-phase flow or water at each position on the cross section in the horizontal condenser tube 2 can be measured. The temperature of the fluid at the upstream of the horizontal condenser pipe 2 can be measured by rotating the temperature measuring component 5 in the pipe clockwise, and the temperature of the fluid at the downstream of the horizontal condenser pipe 2 can be measured by rotating the temperature measuring component 5 in the pipe anticlockwise.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A horizontal round pipe steam condensation heat transfer thermal parameter measuring device is characterized by comprising:
the system comprises an inlet steam flowmeter, a horizontal condenser pipe, a cooling water pipe, a wall temperature measuring component, an in-pipe temperature measuring component, a pressure measuring component and a sealing component;
the inlet steam flowmeter is arranged at the upstream of the horizontal condensation pipe, and the cooling water pipe is arranged outside the horizontal condensation pipe; the wall temperature measuring assembly is used for measuring the outer wall temperature and the middle wall temperature of the horizontal condenser pipe after penetrating through the cooling water pipe for measurement; the temperature measuring component in the tube is arranged in the horizontal condenser tube and is used for measuring the temperature of steam or vapor-liquid two-phase fluid in the horizontal condenser tube; the pressure measuring assembly is arranged at the downstream of the horizontal condenser pipe and used for measuring the fluid pressure of the horizontal condenser pipe; the sealing assembly is arranged at the end part of the horizontal condensation pipe;
a plurality of groups of first wall temperature measuring holes which are symmetrical about the center of the horizontal condenser pipe are arranged on the pipe wall of the horizontal condenser pipe along the flow direction, and each group of first wall temperature measuring holes comprises a plurality of second wall temperature measuring holes which are symmetrical about the center of the horizontal condenser pipe; the second wall temperature measuring hole comprises a deep wall temperature measuring hole and a shallow wall temperature measuring hole, and the deep wall temperature measuring hole is used for measuring the wall temperature of the middle position of the pipe wall of the horizontal condenser pipe; the shallow wall temperature measuring hole is used for measuring the wall temperature of the 3/4 position of the pipe wall of the horizontal condensing pipe from inside to outside; each group of wall temperature measuring components comprise an outer wall temperature measuring component for measuring a horizontal condensing pipe, a deep wall temperature measuring component for measuring the middle position of the pipe wall of the horizontal condensing pipe and a shallow wall temperature measuring component for measuring the 3/4 position of the pipe wall of the horizontal condensing pipe from inside to outside, and the outer wall temperature measuring component, the deep wall temperature measuring component and the shallow wall temperature measuring component in each group of wall temperature measuring components are circumferentially distributed along the pipe wall of the horizontal condensing pipe;
the wall of the cooling water pipe is provided with a plurality of groups of wall temperature measuring thermocouple penetration holes which are symmetrical about the center of the cooling water pipe, and each group of wall temperature measuring thermocouple penetration holes comprises a plurality of second through holes; the wall temperature measuring thermocouple penetration hole is aligned with the first wall temperature measuring hole;
the method for installing the temperature measuring assembly in the pipe comprises the following steps:
(1) Bending a circular tube with the diameter of 20mm into an L shape with the angle of 90 degrees;
(2) 15 holes with the diameter of 1mm at equal intervals are formed in the outer side of the short side of the L-shaped pipe;
(3) Inserting the armored thermocouple into the L-shaped pipe;
(4) Sealing and welding the penetration holes of the armored thermocouple and the wall temperature measuring thermocouple, and sealing the end of the short side of the L-shaped pipe by adopting a blind plate;
(5) Tapping a thread outside the long side of the L-shaped pipe;
the sealing component is connected with the temperature measuring component in the tube through threads, the temperature measuring component in the tube is rotated by 360 degrees clockwise or anticlockwise, and the temperature of steam, vapor-liquid two-phase flow or water at each position on the middle cross section of the horizontal condensing tube can be measured; the temperature measuring component in the clockwise rotating pipe can measure the fluid temperature at the upstream of the horizontal condenser pipe, and the temperature measuring component in the anticlockwise rotating pipe can measure the fluid temperature at the downstream of the horizontal condenser pipe.
2. The device for measuring the steam condensation heat transfer thermal parameters of the horizontal round pipe according to claim 1, wherein the cooling water pipe is provided with a cooling water outlet and a cooling water inlet.
3. The device for measuring steam condensation heat transfer thermal parameters of the horizontal round tube according to claim 1, characterized in that the inlet steam flowmeter is a venturi tube flowmeter, and the venturi tube flowmeter is provided with an intelligent differential pressure transmitter for measuring the flow rate of saturated steam; the Venturi tube flowmeter is provided with an auxiliary electric heating wire and a heat preservation device, and the heating power of the auxiliary electric heating wire is controlled by calculating the heat dissipation capacity of the Venturi tube.
4. The device for measuring steam condensation heat transfer thermal parameters of the horizontal round tube as claimed in claim 1, wherein the deep wall temperature measuring hole and the shallow wall temperature measuring hole both comprise: the counter bore is connected with the first through hole through the transition section.
5. The device for measuring the steam condensation heat transfer thermal parameters of the horizontal round tube according to the claim 1, characterized in that the wall temperature measuring component comprises an armored thermocouple and a sleeve, the armored thermocouple is inserted into the sleeve, the processing end of the sleeve is processed into 45 degrees, and the other end of the sleeve is fixedly connected with the armored thermocouple; the armored thermocouple and the sleeve are integrally inserted into the second through hole and the second wall temperature measuring hole; the temperature measuring end of the armored thermocouple is inserted into the bottom of the second wall temperature measuring hole, and the processing end of the sleeve is in 45-degree slope contact with the transition section of the wall temperature measuring hole; the sleeve is fixedly connected with the cooling water pipe.
6. The horizontal round pipe steam condensation heat transfer thermotechnical parameter measuring device according to claim 1, wherein a pressure measuring component is welded on the outer wall of the horizontal condensing pipe, and the pressure measuring component is connected to an intelligent differential pressure transmitter to measure the pressure of the horizontal condensing pipe.
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| CN109959413B (en) * | 2019-02-18 | 2021-08-24 | 北华大学 | Device and method for predicting plugging fault of cooling pipe in water-cooled copper bar |
| CN112102976B (en) * | 2019-06-18 | 2024-02-02 | 国家电投集团科学技术研究院有限公司 | Underwater movable measuring device for measuring high-temperature steam spraying condensation temperature |
| CN110988022B (en) * | 2019-11-25 | 2022-08-05 | 中国核动力研究设计院 | Sleeve type cooling water jacket structure and gravity assisted heat pipe detection device and detection method |
| CN112983682A (en) * | 2021-02-08 | 2021-06-18 | 西安航天动力试验技术研究所 | Engine injection device and wall surface temperature control method thereof |
| CN114199932B (en) * | 2021-12-08 | 2023-12-01 | 哈尔滨工程大学 | Steam condensation heat exchange experimental device in circumferential deflection horizontal pipe |
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| CN1731068B (en) * | 2005-08-01 | 2010-05-12 | 东北电力学院 | Method and apparatus for dynamical simulation and comprehensive evaluation of pipe side convection heat exchange enhancement technology |
| CN102879129B (en) * | 2012-08-22 | 2016-01-20 | 国核华清（北京）核电技术研发中心有限公司 | A kind of thermal flow density measuring device and method |
| CN103424423B (en) * | 2013-06-25 | 2015-09-09 | 江苏乐科热力科技有限公司 | Vapor condensation heat-exchange test device |
| CN104407008B (en) * | 2014-11-19 | 2018-03-02 | 华东理工大学 | A kind of test system for evaluating mixed vapour partial condensation heat transfer property |
| CN104535209A (en) * | 2014-12-18 | 2015-04-22 | 榆林学院 | Horizontal casing pipe type condenser wall surface multipoint temperature measuring device |
| CN105866171A (en) * | 2016-06-11 | 2016-08-17 | 北京工业大学 | Test device and method for analyzing heat transfer rules of organic working media |
| CN106918622B (en) * | 2017-03-21 | 2019-07-16 | 哈尔滨工程大学 | Vapor condensation heat-exchange experimental system in a kind of width horizontal tube of the degree of supercooling containing multicomponent gas |
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