CN104849310B - Experimental device for measuring high-temperature heat exchange between porous material in tube and airflow - Google Patents
Experimental device for measuring high-temperature heat exchange between porous material in tube and airflow Download PDFInfo
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- CN104849310B CN104849310B CN201510295970.3A CN201510295970A CN104849310B CN 104849310 B CN104849310 B CN 104849310B CN 201510295970 A CN201510295970 A CN 201510295970A CN 104849310 B CN104849310 B CN 104849310B
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Abstract
The invention discloses an experimental device for measuring high-temperature heat exchange between a porous material in a tube and airflow, and relates to the experimental device for measuring high-temperature heat exchange between the porous material in the tube and the airflow. The experimental device is provided aiming at solving the technical problem that basic parameters of coupled heat transfer of a porous material cannot be measured at high temperature at present. The experimental device consists of an air compressor, a gas and liquid separator, a by-pass system, a temperature and pressure compensation turbine flow-meter and a test section, wherein the air compressor is connected with a pressure stabilizing tank, an outlet of an adjusting valve is divided into two branches, one branch is communicated with a shut-off valve, the shut-off valve is connected with the by-pass system, the other branch is connected with the temperature and pressure compensation turbine flow-meter, and the test section is connected with an outlet stabilizing section. The experimental device disclosed by the invention has the advantages that by adopting the experimental device, the operation of measuring the basic parameters of coupled heat transfer of the porous material at high temperature can be completed; and moreover, each system has coordinated operation, and the experimental device has the characteristics of safety, stability, convenience in disassembly and assembly, replaceable porous materials and high repeated measurement performance.
Description
Technical field
The present invention relates to the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe.
Background technology
Due to the extensive engineering background of porous material, both at home and abroad in the mechanism for disclosing the various transport phenomenons of porous media
Expand with rule aspect and study in large quantities, define some theoretical and methods with directive significance.But for porous is situated between
The research of matter single-phase flow heat exchange, is also concentrated mainly at present the relatively low occasion of temperature, have ignored radiation effect.In high temperature application
Under occasion, the contribution of radiation heat transfer be can not ignore, particularly in the field such as Solar use and burning.It is above-mentioned to belong under high temperature
The complicated coupling diabatic process of porous material heat conduction-convection current-radiation.As porous material is in the development of high-temperature applications, its
The acquisition of basic high temperature heat transfer master data becomes more and more urgent, how to measure the Coupled Heat Transfer of porous material under hot conditions
Basic parameter seems most important.
The content of the invention
The invention aims to solve the Coupled Heat Transfer basic parameter that cannot at high temperature measure porous material at present
Technical problem, so as to provide a kind of experimental provision of porous material and air-flow high temperature heat exchange in measurement pipe.
In a kind of measurement pipe of the present invention experimental provision of porous material and air-flow high temperature heat exchange be by air compressor 1,
Vacuum tank 2, gas-liquid separator 3, pressure-reducing valve 4, regulating valve 5, stop valve a6, bypath system 7, temperature and pressure compensation turbine flowmeter 8, cut
Only valve b9, test section 10 and outlet stable section 11 are constituted；Described test section 10 by flange 12, thermocouple 13, connecting pipe a14,
Connecting pipe b15, differential pressure indicator 16, absolute pressure gauge 17, the first pipe joint 18, valve 19, connecting pipe c20, connecting pipe d21, height
Warm resistance stove 23, supporting construction 26, connecting pipe e27, the first connecting pipe f28, circular pipe 29, connecting pipe g30, connecting pipe h31,
Connecting pipe j32, the second pipe joint 33, the 3rd pipe joint 34 and the second connecting pipe f35 composition；
The gas outlet of described air compressor 1 is connected with the entrance of vacuum tank 2, the outlet and gas-liquid separation of vacuum tank 2
The entrance of device 3 is connected, and the gas outlet of gas-liquid separator 3 is connected with the entrance of pressure-reducing valve 4, outlet and the regulating valve 5 of pressure-reducing valve 4
Entrance is connected, and the outlet of regulating valve 5 separates two branch roads, wherein the entrance of a branch road connection stop valve a6, stop valve a6's
Outlet is connected with the entrance of bypath system 7, and another branch road is connected with the entrance of temperature and pressure compensation turbine flowmeter 8, temperature and pressure compensation
The outlet of turbine flowmeter 8 is connected with the entrance of stop valve b9, and the outlet of stop valve b9 is connected with the entrance 22 of test section 10, surveys
The outlet 25 of examination section 10 is connected with the entrance of outlet stable section 11；
The both sides of the circular pipe 29 in described test section 10 are respectively arranged with one group of flange 12, near entrance 22
A thermocouple 13 is provided between the outside of flange and entrance 22, between the outside of the flange near outlet 25 and outlet 25
Multiple thermocouples 13 are provided with, the outer wall of circular pipe 29 is clipped in the bottom of the outer part and flange between of the burner hearth of high temperature thermal resistance stove 23
Multigroup thermocouple 13 is respectively provided with, circular pipe 29 is provided with multigroup heat in the bottom outer wall of the burner hearth interior part of high temperature thermal resistance stove 23
Galvanic couple 13；Circular pipe 29 arranges a pair of fan-shaped flake supporting constructions through the burner hearth of high temperature thermal resistance stove 23 in circular pipe 29
26, it is in the burner hearth interior part of high temperature thermal resistance stove 23 and close that a pair of fan-shaped flake supporting constructions 26 are respectively arranged at circular pipe 29
The top and bottom of outlet 25；Circular pipe 29 is provided with a row and round tube in the bottom of the burner hearth interior part of high temperature thermal resistance stove 23
The vertical multiple connecting pipe e27 in road 29 and a connecting pipe g30, connecting pipe g30 are arranged on the entrance 22 near test section 10
Side, a connecting pipe e27 in another outside connected by the first pipe joint 18 with the first connecting pipe f28, the first pilot
The other end of pipe f28 is connected with absolute pressure gauge 17, and remaining connecting pipe e27 and connecting pipe g30 respectively passes through first pipeline
The connection corresponding with connecting pipe c20 respectively of joint 18, is respectively provided with a valve 19, each connecting pipe on each connecting pipe c20
C20 is connected with same connecting pipe d21, and one end of connecting pipe d21 is closing, and the other end connects the one of a differential pressure indicator 16
Individual entrance, another entrance of differential pressure indicator 16 connects a connecting pipe b15, and connecting pipe b15 is connected with multigroup connecting pipe j32, often
Individual connecting pipe j32 respectively arranges a valve 19, and each connecting pipe j32 is respectively led respectively by second pipe joint 33 with one group
Pressure pipe a14 correspondence is connected, and each connecting pipe a14 is with a connecting pipe e27 vertical connection and is arranged at the first pipe joint
18 top；A connecting pipe h31 is connected in the upper vertical of the first pipe joint 18 of connecting pipe g30, connecting pipe h31 passes through one
Individual 3rd pipe joint 34 is connected with the second connecting pipe f35, and the other end of the second connecting pipe f35 connects an absolute pressure gauge
17。
The present invention provides steady air flow by air supply system, and using temperature and pressure compensation turbine flowmeter 8 flow measurement, high temperature are carried out
The heated porous material 24 of thermal resistance stove 23, forms hot environment, and air-flow flows successively through import stable section, high temperature porous heat convection and surveys
Examination section 10 and outlet stable section 11, final discharge system；Data are carried out by thermocouple 13, differential pressure indicator 16 and absolute pressure gauge 17
Collection, obtains the porous material high temperature convection master data of transient state or stable state, and final process obtains porous material 24
Body convection transfer rate.
Porous material is as follows with the using method of the experimental provision that air-flow high temperature exchanges heat in the measurement pipe of invention：
First, stop valve a6 and pressure-reducing valve 4 are closed, opens stop valve b9, start air compressor 1 to declared working condition；
2nd, pressure-reducing valve 4 and regulating valve 5 are opened and adjust, air-flow Jing vacuum tanks 2, gas-liquid separator 3 enter test section 10,
Adjust temperature and pressure compensation turbine flowmeter 8 and cause stable reading in setting value；
3rd, stop valve a6 is opened, closes stop valve b9, make airflow passes bypath system 7；
4th, high temperature thermal resistance stove 23 is opened, heats test section 10 and reach requirement of experiment temperature, while opening stop valve b9
Stop valve a6 is closed, airflow passes test section 10 is made, the high temperature heat convection of air-flow and high temperature porous material is realized；
5th, temperature and pressure data are entered via thermocouple 13, differential pressure indicator 16 and absolute pressure gauge 17 by data collecting system
Row collection and store, to analyze different operating modes under heat transfer and drooping characteristic；
6th, obtain after experimental data, close high temperature thermal resistance stove 23, continue to supply air-flow, to be tested section 10 is cooled to normal temperature,
Close air compressor 1.
Advantages of the present invention：
First, porous material and the experimental provision of air-flow high temperature heat exchange can be completed at high temperature in measurement pipe of the invention
The experimental implementation of the Coupled Heat Transfer basic parameter of (300K～1500K) measurement porous material.
2nd, the experimental provision that porous material exchanges heat with air-flow high temperature in measurement pipe of the invention has between each system and cooperates with fortune
Row, safety and stability, dismantle easy to assembly, porous material it is replaceable, the features such as duplicate measurements is high.
Description of the drawings
Fig. 1 is the schematic diagram of the experimental provision that porous material exchanges heat with air-flow high temperature in the measurement pipe of the present invention；
Fig. 2 is the signal of test section in the experimental provision that porous material exchanges heat with air-flow high temperature in the measurement pipe of the present invention
Figure；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the B-B sectional views of Fig. 2.
Specific embodiment
Specific embodiment one：Present embodiment is that porous material is filled with the experiment of air-flow high temperature heat exchange in a kind of measurement pipe
Put, with reference to Fig. 1-4, present embodiment is by air compressor 1, vacuum tank 2, gas-liquid separator 3, pressure-reducing valve 4, regulating valve 5, cut-off
Valve a6, bypath system 7, temperature and pressure compensation turbine flowmeter 8, stop valve b9, test section 10 and outlet stable section 11 are constituted；Described
Test section 10 is by flange 12, thermocouple 13, connecting pipe a14, connecting pipe b15, differential pressure indicator 16, absolute pressure gauge 17, the first pipeline
Joint 18, valve 19, connecting pipe c20, connecting pipe d21, high temperature thermal resistance stove 23, supporting construction 26, connecting pipe e27, the first pilot
Pipe f28, circular pipe 29, connecting pipe g30, connecting pipe h31, connecting pipe j32, the second pipe joint 33, the 3rd pipe joint 34
With the second connecting pipe f35 compositions；
The gas outlet of described air compressor 1 is connected with the entrance of vacuum tank 2, the outlet and gas-liquid separation of vacuum tank 2
The entrance of device 3 is connected, and the gas outlet of gas-liquid separator 3 is connected with the entrance of pressure-reducing valve 4, outlet and the regulating valve 5 of pressure-reducing valve 4
Entrance is connected, and the outlet of regulating valve 5 separates two branch roads, wherein the entrance of a branch road connection stop valve a6, stop valve a6's
Outlet is connected with the entrance of bypath system 7, and another branch road is connected with the entrance of temperature and pressure compensation turbine flowmeter 8, temperature and pressure compensation
The outlet of turbine flowmeter 8 is connected with the entrance of stop valve b9, and the outlet of stop valve b9 is connected with the entrance 22 of test section 10, surveys
The outlet 25 of examination section 10 is connected with the entrance of outlet stable section 11；
The both sides of the circular pipe 29 in described test section 10 are respectively arranged with one group of flange 12, near entrance 22
A thermocouple 13 is provided between the outside of flange and entrance 22, between the outside of the flange near outlet 25 and outlet 25
Multiple thermocouples 13 are provided with, the outer wall of circular pipe 29 is clipped in the bottom of the outer part and flange between of the burner hearth of high temperature thermal resistance stove 23
Multigroup thermocouple 13 is respectively provided with, circular pipe 29 is provided with multigroup heat in the bottom outer wall of the burner hearth interior part of high temperature thermal resistance stove 23
Galvanic couple 13；Circular pipe 29 arranges a pair of fan-shaped flake supporting constructions through the burner hearth of high temperature thermal resistance stove 23 in circular pipe 29
26, it is in the burner hearth interior part of high temperature thermal resistance stove 23 and close that a pair of fan-shaped flake supporting constructions 26 are respectively arranged at circular pipe 29
The top and bottom of outlet 25；Circular pipe 29 is provided with a row and round tube in the bottom of the burner hearth interior part of high temperature thermal resistance stove 23
The vertical multiple connecting pipe e27 in road 29 and a connecting pipe g30, connecting pipe g30 are arranged on the entrance 22 near test section 10
Side, a connecting pipe e27 in another outside connected by the first pipe joint 18 with the first connecting pipe f28, the first pilot
The other end of pipe f28 is connected with absolute pressure gauge 17, and remaining connecting pipe e27 and connecting pipe g30 respectively passes through first pipeline
The connection corresponding with connecting pipe c20 respectively of joint 18, is respectively provided with a valve 19, each connecting pipe on each connecting pipe c20
C20 is connected with same connecting pipe d21, and one end of connecting pipe d21 is closing, and the other end connects the one of a differential pressure indicator 16
Individual entrance, another entrance of differential pressure indicator 16 connects a connecting pipe b15, and connecting pipe b15 is connected with multigroup connecting pipe j32, often
Individual connecting pipe j32 respectively arranges a valve 19, and each connecting pipe j32 is respectively led respectively by second pipe joint 33 with one group
Pressure pipe a14 correspondence is connected, and each connecting pipe a14 is with a connecting pipe e27 vertical connection and is arranged at the first pipe joint
18 top；A connecting pipe h31 is connected in the upper vertical of the first pipe joint 18 of connecting pipe g30, connecting pipe h31 passes through one
Individual 3rd pipe joint 34 is connected with the second connecting pipe f35, and the other end of the second connecting pipe f35 connects an absolute pressure gauge
17。
Specific embodiment two：Present embodiment from unlike specific embodiment one：The entrance 22 of test section 10
Air-flow velocity is 2m/s～50m/s.Other are identical with specific embodiment one.
Specific embodiment three：Unlike one of present embodiment and specific embodiment one to two：Thermocouple 13 is
Armoured thermocouple.Other are identical with one of specific embodiment one to two.
Specific embodiment four：Unlike one of present embodiment and specific embodiment one to three：Connecting pipe e27 and
The material of connecting pipe g30 is stainless steel.Other are identical with one of specific embodiment one to three.
Specific embodiment five：Unlike one of present embodiment and specific embodiment one to four：Connecting pipe c20's
Material is brass.Other are identical with one of specific embodiment one to four.
Specific embodiment six：Unlike one of present embodiment and specific embodiment one to five：Thermocouple 13 is welded
It is connected in the sleeve pipe on circular pipe 29.Other are identical with one of specific embodiment one to five.
Using following verification experimental verifications effect of the present invention：
Test one：This test is a kind of experimental provision of porous material and air-flow high temperature heat exchange in measurement pipe, with reference to Fig. 1-
4, this test by air compressor 1, vacuum tank 2, gas-liquid separator 3, pressure-reducing valve 4, regulating valve 5, stop valve a6, bypath system 7,
Temperature and pressure compensation turbine flowmeter 8, stop valve b9, test section 10 and outlet stable section 11 are constituted；Described test section 10 is by flange
12nd, thermocouple 13, connecting pipe a14, connecting pipe b15, differential pressure indicator 16, absolute pressure gauge 17, the first pipe joint 18, valve 19,
Connecting pipe c20, connecting pipe d21, high temperature thermal resistance stove 23, supporting construction 26, connecting pipe e27, the first connecting pipe f28, circular pipe
29th, connecting pipe g30, connecting pipe h31, connecting pipe j32, the second pipe joint 33, the 3rd pipe joint 34 and the second connecting pipe f35
Composition；
The gas outlet of described air compressor 1 is connected with the entrance of vacuum tank 2, the outlet and gas-liquid separation of vacuum tank 2
The entrance of device 3 is connected, and the gas outlet of gas-liquid separator 3 is connected with the entrance of pressure-reducing valve 4, outlet and the regulating valve 5 of pressure-reducing valve 4
Entrance is connected, and the outlet of regulating valve 5 separates two branch roads, wherein the entrance of a branch road connection stop valve a6, stop valve a6's
Outlet is connected with the entrance of bypath system 7, and another branch road is connected with the entrance of temperature and pressure compensation turbine flowmeter 8, temperature and pressure compensation
The outlet of turbine flowmeter 8 is connected with the entrance of stop valve b9, and the outlet of stop valve b9 is connected with the entrance 22 of test section 10, surveys
The outlet 25 of examination section 10 is connected with the entrance of outlet stable section 11；
The both sides of the circular pipe 29 in described test section 10 are respectively arranged with one group of flange 12, near entrance 22
A thermocouple 13 is provided between the outside of flange and entrance 22, between the outside of the flange near outlet 25 and outlet 25
Multiple thermocouples 13 are provided with, the outer wall of circular pipe 29 is clipped in the bottom of the outer part and flange between of the burner hearth of high temperature thermal resistance stove 23
Multigroup thermocouple 13 is respectively provided with, circular pipe 29 is provided with multigroup heat in the bottom outer wall of the burner hearth interior part of high temperature thermal resistance stove 23
Galvanic couple 13；Circular pipe 29 arranges a pair of fan-shaped flake supporting constructions through the burner hearth of high temperature thermal resistance stove 23 in circular pipe 29
26, it is in the burner hearth interior part of high temperature thermal resistance stove 23 and close that a pair of fan-shaped flake supporting constructions 26 are respectively arranged at circular pipe 29
The top and bottom of outlet 25；Circular pipe 29 is provided with a row and round tube in the bottom of the burner hearth interior part of high temperature thermal resistance stove 23
The vertical multiple connecting pipe e27 in road 29 and a connecting pipe g30, connecting pipe g30 are arranged on the entrance 22 near test section 10
Side, a connecting pipe e27 in another outside connected by the first pipe joint 18 with the first connecting pipe f28, the first pilot
The other end of pipe f28 is connected with absolute pressure gauge 17, and remaining connecting pipe e27 and connecting pipe g30 respectively passes through first pipeline
The connection corresponding with connecting pipe c20 respectively of joint 18, is respectively provided with a valve 19, each connecting pipe on each connecting pipe c20
C20 is connected with same connecting pipe d21, and one end of connecting pipe d21 is closing, and the other end connects the one of a differential pressure indicator 16
Individual entrance, another entrance of differential pressure indicator 16 connects a connecting pipe b15, and connecting pipe b15 is connected with multigroup connecting pipe j32, often
Individual connecting pipe j32 respectively arranges a valve 19, and each connecting pipe j32 is respectively led respectively by second pipe joint 33 with one group
Pressure pipe a14 correspondence is connected, and each connecting pipe a14 is with a connecting pipe e27 vertical connection and is arranged at the first pipe joint
18 top；A connecting pipe h31 is connected in the upper vertical of the first pipe joint 18 of connecting pipe g30, connecting pipe h31 passes through one
Individual 3rd pipe joint 34 is connected with the second connecting pipe f35, and the other end of the second connecting pipe f35 connects an absolute pressure gauge
17。
The present invention provides steady air flow by air supply system, and using temperature and pressure compensation turbine flowmeter 8 flow measurement, high temperature are carried out
The heated porous material 24 of thermal resistance stove 23, forms hot environment, and air-flow flows successively through import stable section, high temperature porous heat convection and surveys
Examination section 10 and outlet stable section 11, final discharge system；Data are carried out by thermocouple 13, differential pressure indicator 16 and absolute pressure gauge 17
Collection, obtains the porous material high temperature convection master data of transient state or stable state, and final process obtains porous material 24
Body convection transfer rate.
The air-flow velocity of the entrance 22 of test section 10 is 20m/s；Thermocouple 13 is armoured thermocouple；Connecting pipe e27 and lead
The material of pressure pipe g30 is stainless steel；The material of connecting pipe c20 is brass.
Porous material 24 is arranged in part of the circular pipe 29 in the burner hearth of high temperature thermal resistance stove 23, by supporting construction 26
So that porous material 24 is stable motionless in circular pipe 29, the porosity of described porous material 24 is 0.9；
Concrete operations are as follows：
First, stop valve a6 and pressure-reducing valve 4 are closed, opens stop valve b9, start air compressor 1 to declared working condition；
2nd, pressure-reducing valve 4 and regulating valve 5 are opened and adjust, air-flow Jing vacuum tanks 2, gas-liquid separator 3 enter test section 10,
Adjust temperature and pressure compensation turbine flowmeter 8 and cause stable reading in setting value；
3rd, stop valve a6 is opened, closes stop valve b9, make airflow passes bypath system 7；
4th, open high temperature thermal resistance stove 23 and design temperature is 1000K, heat test section 10 and reach 1000K, open cut-off
Stop valve a6 is closed while valve b9, airflow passes test section 10 is made, realizes that air-flow is changed with the high temperature convection current of high temperature porous material
Heat；
5th, temperature and pressure data are entered via thermocouple 13, differential pressure indicator 16 and absolute pressure gauge 17 by data collecting system
Row collection and store, to analyze different operating modes under heat transfer and drooping characteristic；
6th, obtain after experimental data, close high temperature thermal resistance stove 23, continue to supply air-flow, to be tested section 10 is cooled to normal temperature,
Close air compressor 1.
The experimental provision that porous material exchanges heat with air-flow high temperature in the measurement pipe of the present invention can complete to measure at high temperature
The experimental implementation of the Coupled Heat Transfer basic parameter of porous material.
Claims (6)
1. a kind of experimental provision that porous material exchanges heat with air-flow high temperature in measurement pipe, it is characterised in that porous material in measurement pipe
The experimental provision exchanged heat with air-flow high temperature is by air compressor (1), vacuum tank (2), gas-liquid separator (3), pressure-reducing valve (4), tune
Section valve (5), stop valve a (6), bypath system (7), temperature and pressure compensation turbine flowmeter (8), stop valve b (9), test section (10) and
Outlet stable section (11) composition；Described test section (10) is by flange (12), thermocouple (13), connecting pipe a (14), connecting pipe b
(15), differential pressure indicator (16), absolute pressure gauge (17), the first pipe joint (18), valve (19), connecting pipe c (20), connecting pipe d
(21), high temperature thermal resistance stove (23), supporting construction (26), connecting pipe e (27), the first connecting pipe f (28), circular pipe (29), lead
Pressure pipe g (30), connecting pipe h (31), connecting pipe j (32), the second pipe joint (33), the 3rd pipe joint (34) and the second pilot
Pipe f (35) is constituted；
The gas outlet of described air compressor (1) is connected with the entrance of vacuum tank (2), outlet and the gas-liquid point of vacuum tank (2)
Entrance from device (3) is connected, and the gas outlet of gas-liquid separator (3) is connected with the entrance of pressure-reducing valve (4), the outlet of pressure-reducing valve (4)
It is connected with the entrance of regulating valve (5), the outlet of regulating valve (5) separates two branch roads, wherein branch road connection stop valve a (6)
Entrance, the outlet of stop valve a (6) is connected with the entrance of bypath system (7), another branch road and temperature and pressure compensation turbine flowmeter
(8) entrance is connected, and the outlet of temperature and pressure compensation turbine flowmeter (8) is connected with the entrance of stop valve b (9), stop valve b's (9)
Outlet is connected with the entrance (22) of test section (10), the entrance phase of outlet (25) with outlet stable section (11) of test section (10)
Even；
The both sides of the circular pipe (29) in described test section (10) are respectively arranged with one group of flange (12), near entrance
(22) thermocouple (13) is provided between the outside of flange and entrance (22), in the outside of the flange near outlet (25)
Be provided with multiple thermocouples (13) and outlet (25) between, circular pipe (29) outer wall be clipped in high temperature thermal resistance stove (23) burner hearth it is outer and
The bottom of the part between flange is respectively provided with multigroup thermocouple (13), and circular pipe (29) is in high temperature thermal resistance stove (23) burner hearth
Partial bottom outer wall is provided with multigroup thermocouple (13)；Circular pipe (29) through high temperature thermal resistance stove (23) burner hearth, it is circular
A pair of fan-shaped flake supporting constructions (26) are set in pipeline (29), and a pair of fan-shaped flake supporting constructions (26) are respectively arranged at circle
Pipeline (29) is in high temperature thermal resistance stove (23) burner hearth interior part and near the top and bottom of outlet (25)；Circular pipe (29) exists
The bottom of high temperature thermal resistance stove (23) burner hearth interior part be provided with a row multiple connecting pipe es (27) vertical with circular pipe (29) and
One connecting pipe g (30), connecting pipe g (30) is arranged on the side near the entrance (22) of test section (10), another outside
One connecting pipe e (27) is connected by the first pipe joint (18) with the first connecting pipe f (28), and the first connecting pipe f's (28) is another
One end connects with absolute pressure gauge (17), and remaining connecting pipe e (27) and connecting pipe g (30) respectively pass through first pipe joint
(18) connection corresponding with connecting pipe c (20) respectively, is respectively provided with a valve (19) on each connecting pipe c (20), and each is led
Pressure pipe c (20) is connected with same connecting pipe d (21), and one end of connecting pipe d (21) is closing, and the other end connects a pressure
One entrance of difference table (16), another entrance of differential pressure indicator (16) connects a connecting pipe b (15), connecting pipe b (15) with it is many
Group connecting pipe j (32) connection, each connecting pipe j (32) respectively arranges a valve (19), and each connecting pipe j (32) respectively passes through one
Second pipe joint (33) connection corresponding with one group of connecting pipe a (14) respectively, each connecting pipe a (14) with a connecting pipe e
(27) vertical connection and it is arranged at the top of the first pipe joint (18)；In first pipe joint (18) of connecting pipe g (30)
Upper vertical connects a connecting pipe h (31), and connecting pipe h (31) is by the 3rd pipe joint (34) and the second connecting pipe f
(35) connect, the other end of the second connecting pipe f (35) connects an absolute pressure gauge (17).
2. the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe according to claim 1, its feature
The air-flow velocity for being the entrance (22) of test section (10) is 2m/s～50m/s.
3. the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe according to claim 1, its feature
Be thermocouple (13) be armoured thermocouple.
4. the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe according to claim 1, its feature
The material for being connecting pipe e (27) and connecting pipe g (30) is stainless steel.
5. the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe according to claim 1, its feature
The material for being connecting pipe c (20) is brass.
6. the experimental provision that porous material exchanges heat with air-flow high temperature in a kind of measurement pipe according to claim 1, its feature
It is in sleeve pipe that thermocouple (13) is welded on circular pipe (29).
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| CN105136848B (en) * | 2015-09-16 | 2017-12-22 | 北京邮电大学 | Convection transfer rate, convective transfer coefficient test device and method |
| CN110967073B (en) * | 2019-12-31 | 2021-04-06 | 谈格 | Differential pressure type flowmeter in waste water pipeline |
| CN112378950B (en) * | 2020-10-14 | 2022-11-22 | 上海交通大学 | Experimental equipment for simulating heat transfer characteristics of high-temperature gas |
| CN116380409B (en) * | 2023-06-06 | 2023-08-08 | 核工业西南物理研究院 | Fusion reactor cladding ball bed high-temperature gas flow resistance characteristic measuring device and method |
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| CN102081059B (en) * | 2010-11-25 | 2013-02-06 | 哈尔滨工程大学 | Forced-convection heat transfer experimental device for strong inner heat source containing porous medium passage |
| CN102121910B (en) * | 2010-12-20 | 2013-01-02 | 北京化工大学 | Performance test device for micro heat exchanger |
| CN103196945B (en) * | 2013-03-18 | 2014-12-17 | 哈尔滨工程大学 | Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation |
| CN103760190B (en) * | 2014-01-13 | 2016-01-27 | 中国科学院广州能源研究所 | A kind of method and apparatus measuring gas hydrate coefficient of heat conductivity in porous medium |
| CN104237305B (en) * | 2014-10-20 | 2016-08-17 | 中国矿业大学(北京) | A kind of rock mass testing device for measuring thermal conductivity and test system |
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2015
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