CN206920124U - The test device of high-temperature molten salt swivel joint - Google Patents
The test device of high-temperature molten salt swivel joint Download PDFInfo
- Publication number
- CN206920124U CN206920124U CN201720783690.1U CN201720783690U CN206920124U CN 206920124 U CN206920124 U CN 206920124U CN 201720783690 U CN201720783690 U CN 201720783690U CN 206920124 U CN206920124 U CN 206920124U
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- China
- Prior art keywords
- swivel joint
- molten salt
- test device
- thermal
- driving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of test device of high-temperature molten salt swivel joint, including fused salt tank, driving tower, the thermal-collecting tube by described driving tower driving reciprocally swinging, the swivel joint being connected through metal hose with described thermal-collecting tube both ends, described swivel joint is connected to fused salt tank to form circulation loop through pipeline respectively, heating tape is provided with described pipeline, described thermal-collecting tube and metal hose is provided with Joule heating mechanism, insulated between described metal hose and swivel joint, temperature sensor is respectively arranged with described swivel joint side.The utility model realizes the movement angle of simulation field working conditions angle by driving swivel joint to rotate.Drive swivel joint to rotate with the driving tower of actual use, fitted like a glove with field working conditions, the anglec of rotation is identical, and improves rotary speed, shortens swing circle.Being moved by driving tower drives metal hose to swing, and simulates the flexible of live thermal-collecting tube, effectively reduces thermal-collecting tube train length.
Description
Technical field
Product test technical field is the utility model is related to, the test more particularly to a kind of high-temperature molten salt swivel joint fills
Put.
Background technology
The technical requirements conduit coupling of the hot power generation project of slot type fused salt with fused salt heat accumulation facility has resistance to 570 DEG C of height
Temperature, 25 years service life, it is inexpensive the features such as.Swivel joint is a wherein very crucial pipe fitting, and current this high temperature modification melts
Salt all relies on import with the buying of swivel joint, and the cycle is longer, the so huge demand of the heat collecting field for a 50MW
For quantity, expense is very high, it is impossible to meets the commercialized needs in photo-thermal power station, therefore is badly in need of developing test battery device
To simulate scene actual use operating mode, to test the performance of swivel joint.My company designs and develops swivel joint at present, this
Experimental rig also can further test the performance of the swivel joint of autonomous Design production, and foundation is provided for 50MW power plant type selecting.
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and provides a kind of high-temperature molten salt rotation
The test device of joint.
Technical scheme is used by realize the purpose of this utility model：
A kind of test device of high-temperature molten salt swivel joint, including fused salt tank, driving tower, from described driving tower drive toward
The dynamic thermal-collecting tube of physical pendulum, the swivel joint being connected through metal hose with described thermal-collecting tube both ends, described swivel joint difference
Fused salt tank is connected to through pipeline to form circulation loop, and heating tape, described thermal-collecting tube and metal are provided with described pipeline
Flexible pipe is provided with Joule heating mechanism, is insulated between described metal hose and swivel joint, in described swivel joint side point
Temperature sensor is not provided with it.
Flowed from front to back with fused salt flow direction, the front portion of the swivel joint of thermal-collecting tube front end is provided with temperature sensor
And flowmeter, the rear portion of the swivel joint of described thermal-collecting tube rear end are provided with temperature sensor, pressure sensor and regulating valve.
Described swivel joint includes,
First joint, it includes the first connecting tube and the first wavy metal being fixedly connected with the first described connecting tube
Pipe, and the first sealing ring of the first wavy metal tube end is arranged on, the first described connecting tube other end is fixed with pipeline
Connection；
Second joint, it includes the second connecting tube and the second wavy metal being fixedly connected with the second described connecting tube
Pipe, and the second sealing ring of the second wavy metal tube end is arranged on, the other end and metal of the second described connecting tube are soft
Pipe connects and has been arranged between insulating flange；
Sleeve is connected, it includes being fixedly connected with the first described connecting tube and allows the first described metal bellows
The first adapter sleeve being inserted, second for being fixedly connected and being rotatably connected with the first adapter sleeve with the second described connecting tube
Adapter sleeve, the second described metal bellows is through the second described adapter sleeve and makes the first sealing ring and the second seal ring seal
Docking.
Described connection sleeve includes same in described sealing joint formed with atria, the first described adapter sleeve
The reduced diameter section and enlarged diameter section that axle is set, described atria are consolidated by the shoulder of the first adapter sleeve and with described enlarged diameter section
Surely the spacer ring connected is formed, and described enlarged diameter section end passes through swivel bearing formed with inner stopper, the second described adapter sleeve
It can be rotatably set in the opening of larger diameter end.
First adapter sleeve of described swivel joint is fixed by support tower and supported, and is set in the lower section of described swivel joint
There is leakage collecting tank, gravity sensor is provided between described leakage collecting tank and described support tower.
Shield is provided with outside described swivel joint to carry out security protection and insulation.
Described sealing ring is corresponding plane, domatic or cambered surface sealing pair.
Described fused salt tank includes accommodating the tank body of fused salt, to drive the pump for liquid salts that fused salt flows, and fused salt to add
Hot device, and temperature of molten salt sensor in tank.
The hydraulic station of described driving tower is arranged on outside, and the driving anglec of rotation is ± 120 °, maximum moving distance for ±
300mm, driving tower moving guide rail both ends set stopping means, prevent driving tower derailing from causing danger.
A kind of method of testing of described test device, comprises the following steps
1) fused salt tank heats fused salt and is incubated in design temperature,
2) pump for liquid salts driving fused salt flowing, pipeline and tank body carry out tracing thermal-insulating, swivel joint is continued in design temperature
Lower motion, while measure flow and pressure；
3) driving hydraulic cylinder promote driving tower moved on guide rail, drive metal hose swing, swinging distance for ±
240mm, daily continuous service 240 times；
4) fused salt of leakage is collected, and is weighed, calculates leakage rate；
5) change design temperature, continue repeat step 1) -4).
Compared with prior art, the beneficial effects of the utility model are：
The utility model realizes the movement angle of simulation field working conditions angle by driving swivel joint to rotate.With reality
The driving tower that border uses drives swivel joint rotation, is fitted like a glove with field working conditions, the anglec of rotation is identical, and improves rotation
Speed, shorten swing circle.Being moved by driving tower drives metal hose to swing, and simulates the flexible of live thermal-collecting tube, utilizes gold
Belong to the flexible of the swing simulation thermal-collecting tube of flexible pipe, effectively reduce thermal-collecting tube train length, while directly with Joule heating to thermal-arrest
Pipe and metal hose are heated, and simulate whole interior temperature, temperature control pace of change is big, further reduces test period.
Brief description of the drawings
Fig. 1 show the structural representation of the test device of high-temperature molten salt swivel joint of the present utility model.
Fig. 2 show the principle schematic of the test device of high-temperature molten salt swivel joint of the present utility model.
Fig. 3 show the structural representation of high temperature rotary joint of the present utility model；
Fig. 4 show the structural representation of the first joint；
Fig. 5 show the reserved notch schematic diagram of the first adapter sleeve.
Fig. 6 show sealing ring and docks the first schematic diagram.
Fig. 7 show sealing ring and docks the second schematic diagram.
Fig. 8 show sealing ring and docks the 3rd schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
As illustrated, the test device of high-temperature molten salt swivel joint of the present utility model include fused salt tank 50, driving tower 60,
By the thermal-collecting tube 70 of described driving tower driving reciprocally swinging, the rotation being connected through metal hose 80 with described thermal-collecting tube both ends
Joint 10, described swivel joint are connected to fused salt tank through pipeline to form circulation loop respectively, are provided with described pipeline
Heating tape, described thermal-collecting tube and metal hose are provided with Joule heating mechanism, between described metal hose and swivel joint absolutely
Edge, temperature sensor is respectively arranged with described swivel joint side.
The utility model realizes the movement angle of simulation field working conditions angle by driving swivel joint to rotate.With reality
The driving tower that border uses drives swivel joint rotation, is fitted like a glove with field working conditions, the anglec of rotation is identical, and improves rotation
Speed, shorten swing circle.Being moved by driving tower drives metal hose to swing, and simulates the flexible of live thermal-collecting tube, utilizes gold
Belong to the flexible of the swing simulation thermal-collecting tube of flexible pipe, effectively reduce thermal-collecting tube train length, while directly with Joule heating to thermal-arrest
Pipe and metal hose are heated, and simulate whole interior temperature, temperature control pace of change is big, further reduces test period.
Wherein, flowed from front to back with fused salt flow direction, the front portion of the swivel joint of thermal-collecting tube front end is provided with temperature
Sensor and flowmeter, the rear portion of the swivel joint of described thermal-collecting tube rear end be provided with temperature sensor, pressure sensor and
Regulating valve, temperature and pressure sensor is being set close to the position of swivel joint, is recording the test condition of lower swivel in real time,
The parameter monitoring such as real boundary parameter, real time media pressure flow temperature is provided and recorded.
First adapter sleeve of described swivel joint fixes support by support tower 90, is set below described swivel joint
Leakage collecting tank 91 is equipped with, gravity sensor, described rotation are provided between described leakage collecting tank and described support tower
Connector exterior is provided with shield 92 to carry out security protection and insulation.By leakage collecting tank and gravity sensor, can measure in real time Lou
Liquid, the fused salt leakage rate in the swivel joint of different condition is calculated, specific leak case can be gone out by data statistic analysis, is carried
The effective reference calculated for service life.
Described fused salt tank includes accommodating the tank body of fused salt, to drive the pump for liquid salts that fused salt flows, and fused salt to add
Hot device, and temperature of molten salt sensor in tank, the hydraulic station of described driving tower are arranged on outside, the driving anglec of rotation for ±
120 °, maximum moving distance is ± 300mm, and driving tower moving guide rail both ends set stopping means, prevents driving tower derailing from causing
It is dangerous.Using external hydraulic station driving hydraulic cylinder, driving tower movement is promoted, maximum moving distance is that ± 300mm (is when middle
0), displacement alreadys exceed the flexible desired ± 240mm of live thermal-collecting tube.
Swivel joint of the present utility model includes,
First joint, it includes the first connecting tube 11 and the first metal wave being fixedly connected with the first described connecting tube 11
Line pipe 12, and the first sealing ring 13 of the first wavy metal tube end is fixedly installed on, the first described connecting tube other end
It is fixedly connected with pipeline；
Second joint, it includes the second connecting tube 21 and the second wavy metal being fixedly connected with the second described connecting tube
Pipe 22, and it is fixedly installed on the second sealing ring 23 of the second wavy metal tube end, the other end of the second described connecting tube
With connection by metal hose and being arranged between insulating flange；
The connection sleeve of stainless steel, it includes being fixedly connected with the first described connecting tube and allows described the
The first adapter sleeve 31 that one metal bellows is inserted, is fixedly connected and can with the first adapter sleeve with the second described connecting tube
Second adapter sleeve 32 of rotatable connection, the second described metal bellows through described the second adapter sleeve and make first close between two parties
Seal ring and the docking of the second seal ring seal.First adapter sleeve of described connection sleeve is affixed side, to realize fixed peace
Dress.
Wherein, it is to ensure overall sealing effectiveness, the pressure of the first sealing ring and the second sealing interannular under normal temperature after mounting
Press it is strong larger, typically in 2Mpa or more, when inside stream crosses high-temperature molten salt, during such as 580 DEG C of high-temperature molten salts, two sealing interannulars
Pressure can reach 4Mpa even more than.The metal bellows material is made up of high temperature resistant stainless steel, such as 304H, metal bellows
Wall thickness thickness is in 0.6-1mm, such as 0.8mm, and pitch is in 8-12mm, such as 10mm, and bulk metal Bellows Length is in 30-80mm, gold
Category bellows stiffness is more than 100N/mm, is stretched in range in stiffness and belongs to elastic deformation, and no fatigue influences, and can meet to make for a long time
With, wavy metal length of tube is relevant with decrement needed for calculating, and sealing ring material is hard alloy, e.g., Si Taili stainless steels, gold
Category bellows is realized with being fixedly connected for connecting tube using specialty welding.
The utility model is connected by connecting tube with exterior line, is such as connected with heat storage can loop or thermal-collecting tube, simultaneously
In the fixed setting of the opposite end of two connecting tubes, such as welded joints seal circle, then using connect sleeve by the first joint and
Second joint axially position but it is rotatably connected and two sealing rings is formed with inwardly extruding, utilizes sealing ring extruding to form sealing
The rotary type that connection forms this pipeline is tightly connected, i.e., distinguishes in the fixed end and rotating end joint of swivel joint
Certain length and the metal bellows of rigidity are welded, and high-abrasive material sealing ring is welded again in the other end of metal bellows, is revolved
After the completion of adapter assembling, sealing ring docks and bellows is had certain decrement, and then stroke after thermal expansion is effective
Utilize, there is provided to required axial pre tightening force in sealing contact, and meanwhile the working space of the rotary components such as working media and bearing is only
It is vertical to come.That is, the structure type of docking is directly sealed using pipeline, eliminates dependence of the components such as bearing to sealing property；
Under high-temperature work environment, metal bellows not only can absorb the stroke of pipeline in swivel joint, and then increases bellows
Decrement, the stroke of each assembly material under hot environment is positively utilized to improve sealing property, more to improve assembling structure,
To eliminate dependence of the components such as bearing to sealing property in soda acid working media.
Specifically, for ease of integrated connection, be provided with the middle part of described the first connecting tube 11 adpting flange 14 with
The first described adapter sleeve is fixedly connected, be provided with the second described connecting tube adpting flange with the second described adapter sleeve
It is fixedly connected.Meanwhile end adpting flange is additionally provided with the outer end of the first connecting tube to be connected to whole pipeline.Exist simultaneously
The end set of connecting tube has flange 15, is connected by flange, can guarantee that preferable axiality.
Wherein, the described inner side of adpting flange 14 also has part first to connect pipeline section, the first connection pipeline section on the inside of this
End is welded with the first metal bellows, and to strengthen bonding area, the internal diameter at the end is identical with the first connecting tube of entirety,
It is preferred that the larger design of this section selection wall thickness, so also improves assembling, centering during the first adapter sleeve can be loaded now, second
Connecting tube design is similar, does not deploy to describe herein.
Further, described sealing ring is corresponding plane, domatic or cambered surface sealing pair.I.e. described sealing ring has three
Kind structure：The first is plane sealing structure, that is, it is that plane docks form to contact sealing surface；Second is conical surface sealing structure,
It is cone match form to contact sealing surface；The third is ball face sealing structure, that is, contacts sealing surface and match somebody with somebody for convex annular, concave spherical surface
Conjunction form, the obverse design of sealing ring, along with sealing ring after flexible bellow welding with, from centering, even more improving
Seal the frictional force and sealing property of loop interface.
Further, to prevent from gathering in adapter sleeve after revealing at sealing, described connection sleeve, such as the first connection
Described sealing joint is enclosed on formed with atria 33, described atria is formed with discharge port.Specifically, described first
Adapter sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and described enlarged diameter section end is described formed with inner stopper
Second adapter sleeve can be rotatably set in the opening of larger diameter end by swivel bearing.
First adapter sleeve is designed using reducing type, and the rotatable axis for realizing two adapter sleeves using inner stopper is located by connecting,
Specifically, the attachment structure includes being arranged on the rolling bearing 41 of two connection inner rooms, bearing neck bush 42, is arranged on rolling bearing
The bearing external bushing 43 in outside, it is connected to position described bearing external bushing outer surface outer ring with the first described adapter sleeve
Hole back-up ring 44, and be connected with the second described adapter sleeve to position the axle of described axial outer bearing sleeve outer surface inner ring
With back-up ring 45, using two back-up rings, stability and resistance to pressure that adapter sleeve connects is effectively ensured.
Further, for avoid leakage fused salt on bearing form influence, described atria by the first adapter sleeve platform
Shoulder and the spacer ring 34 being fixedly connected with described enlarged diameter section are formed, and the inwardly projecting ground of the second described adapter sleeve is formed with bulge loop
24, described spacer ring is held in bulge loop outer surface.
The independent design of atria is realized using spacer ring using variable diameter design, further reduces fused salt directly to bearing
Corrode, moreover, forming bulge loop corresponding with described spacer ring on the second adapter sleeve, the bulge loop and spacer ring form the same of sealing
When, centering is also provided, improves the operational effect of rotary sleeve.
Further, the second described adapter sleeve keeps spacing to reduce CONTACT WITH FRICTION area with described spacer ring, described
The second adapter sleeve medial surface on formed with ring groove 25, the ring groove reduces the outside transmission of internal heat, meanwhile, also
Can heater be set in described ring groove to reduce the temperature drop of junction.
Meanwhile the utility model discloses a kind of method of testing of described test device, comprise the following steps
1) fused salt tank heating fused salt and it is incubated to design temperature, mounting temperature sensor in pipeline, measures in real time in tank body
The temperature of fused salt, the real-time display of temperature is had on switch board host computer.
2) flowing of pump for liquid salts driving fused salt, pipeline and tank body carry out tracing thermal-insulating, swivel joint is continued in 550 DEG C of high temperature
Motion, while measure flow and pressure；For test temperature change may caused by plant issue, the temperature in fused salt tank can also do
Cyclically-varying, by the measurement to manifold pressure temperature, pressure, the working condition of different operating mode lower swivels can be known
And stability,
3) driving hydraulic cylinder promote driving tower moved on guide rail, drive metal hose swing, swinging distance for ±
240mm, daily continuous service 240 times；
4) fused salt of leakage is collected, and is weighed, calculates leakage rate.
That is, leakage rate is recorded by the different parameters such as test period and test temperature pressure, such as：1st, it is separately recorded in
At 290 DEG C, 550 DEG C, pressure 1MPa, long run test time T is recorded, leakage rate M, is weighed, calculate average leaked amount
Mm=M/T.Judge whether the leakage rate requirement for meeting swivel joint.(specific leakage rate requirement is carried by swivel joint product side
Go out), 2, carry out equivalent life simulated test, at 550 DEG C, continuous operation 1000 hours, examine swivel joint energy under conditions of 1MPa
It is no to reach service life requirement, the maximum leakage amount of swivel joint is can exceed that inside service life.
For the operating mode of the actual diverse location swivel joint of Different field, different test conditions is set, you can complete this
The test of utility model.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of test device of high-temperature molten salt swivel joint, it is characterised in that including fused salt tank, driving tower, by described drive
The thermal-collecting tube of dynamic tower driving reciprocally swinging, the swivel joint being connected through metal hose with described thermal-collecting tube both ends, described rotation
Adapter is connected to fused salt tank to form circulation loop through pipeline respectively, and heating tape, described collection are provided with described pipeline
Heat pipe and metal hose are provided with Joule heating mechanism, are insulated between described metal hose and swivel joint, in described rotation
Joint side is respectively arranged with temperature sensor.
2. the test device of high-temperature molten salt swivel joint as claimed in claim 1, it is characterised in that with fused salt flow direction from
Flowed after forward direction, the front portion of the swivel joint of thermal-collecting tube front end is provided with temperature sensor and flowmeter, after described thermal-collecting tube
The rear portion of the swivel joint at end is provided with temperature sensor, pressure sensor and regulating valve.
3. the test device of high-temperature molten salt swivel joint as claimed in claim 1, it is characterised in that described swivel joint bag
Include,
First joint, it includes the first connecting tube and the first metal bellows being fixedly connected with the first described connecting tube, with
And the first sealing ring of the first wavy metal tube end is arranged on, the first described connecting tube other end is fixedly connected with pipeline；
Second joint, it includes the second connecting tube and the second metal bellows being fixedly connected with the second described connecting tube, with
And the second sealing ring of the second wavy metal tube end is arranged on, the other end and connection by metal hose of the second described connecting tube
And insulating flange has been arranged between it；
Sleeve is connected, it includes being fixedly connected with the first described connecting tube and allows described the first metal bellows insertion
First adapter sleeve therein, be fixedly connected with the second described connecting tube and with the first adapter sleeve is rotatably connected second is connected
Set, the second described metal bellows is through the second described adapter sleeve and makes the first sealing ring and the second seal ring seal pair
Connect.
4. the test device of high-temperature molten salt swivel joint as claimed in claim 3, it is characterised in that described connection sleeve
In described sealing joint formed with atria, the first described adapter sleeve includes reduced diameter section and the major diameter being coaxially disposed
Section, described atria is formed by the shoulder of the first adapter sleeve and with the spacer ring that described enlarged diameter section is fixedly connected, described
Enlarged diameter section end can be rotatably set in larger diameter end formed with inner stopper, the second described adapter sleeve by swivel bearing
Opening.
5. the test device of high-temperature molten salt swivel joint as claimed in claim 4, it is characterised in that described swivel joint
First adapter sleeve is fixed by support tower and supported, and leakage collecting tank, described leakage are provided with below described swivel joint
Gravity sensor is provided between collecting tank and described support tower.
6. the test device of high-temperature molten salt swivel joint as claimed in claim 5, it is characterised in that outside described swivel joint
Portion is provided with shield to carry out security protection and insulation.
7. the test device of high-temperature molten salt swivel joint as claimed in claim 3, it is characterised in that described sealing ring is pair
The plane answered, domatic or cambered surface sealing pair.
8. the test device of high-temperature molten salt swivel joint as claimed in claim 1, it is characterised in that described fused salt tank includes
The tank body of fused salt is accommodated, to drive the pump for liquid salts that fused salt flows, and temperature of molten salt senses in molten salt heater, and tank
Device.
9. the test device of high-temperature molten salt swivel joint as claimed in claim 1, it is characterised in that the liquid of described driving tower
Pressure station is arranged on outside, and the driving anglec of rotation is ± 120 °, and maximum moving distance is ± 300mm, driving tower moving guide rail both ends
Stopping means is set, prevents driving tower derailing from causing danger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783690.1U CN206920124U (en) | 2017-06-30 | 2017-06-30 | The test device of high-temperature molten salt swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783690.1U CN206920124U (en) | 2017-06-30 | 2017-06-30 | The test device of high-temperature molten salt swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920124U true CN206920124U (en) | 2018-01-23 |
Family
ID=61335004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720783690.1U Withdrawn - After Issue CN206920124U (en) | 2017-06-30 | 2017-06-30 | The test device of high-temperature molten salt swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290143A (en) * | 2017-06-30 | 2017-10-24 | 天津滨海设备配套技术有限公司 | The test device and method of testing of high-temperature molten salt swivel joint |
-
2017
- 2017-06-30 CN CN201720783690.1U patent/CN206920124U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290143A (en) * | 2017-06-30 | 2017-10-24 | 天津滨海设备配套技术有限公司 | The test device and method of testing of high-temperature molten salt swivel joint |
| CN107290143B (en) * | 2017-06-30 | 2023-10-17 | 天津滨海设备配套技术有限公司 | Testing device and testing method for high-temperature molten salt rotary joint |
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