CN207196972U - Stepped ramp type gravity salt discharge formula heat collecting field - Google Patents
Stepped ramp type gravity salt discharge formula heat collecting field Download PDFInfo
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- CN207196972U CN207196972U CN201721158466.XU CN201721158466U CN207196972U CN 207196972 U CN207196972 U CN 207196972U CN 201721158466 U CN201721158466 U CN 201721158466U CN 207196972 U CN207196972 U CN 207196972U
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- type heat
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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Abstract
The utility model discloses a kind of stepped ramp type gravity salt discharge formula heat collecting field, including cold tank, the first groove type heat collector, bridge section connecting tube, the second groove type heat collector and the hot tank being sequentially communicated, wherein, the first described groove type heat collector heat collector includes multiple sub- groove type heat collectors, and the thermal-collecting tube of multiple sub- groove type heat collectors of the first described groove type heat collector sets with plane-parallel and is highly stepped up along away from cold tank direction respectively.Heat collecting field of the present utility model, the conventional design in conventionally employed integral level face is continued, but the height of two neighboring sub- groove type heat collector is changed using the setting of base station, the structure and assembling form of respective sub- groove type heat collector and operation are not affected, the same keep level of thermal-collecting tube is set, but multiple thermal-collecting tubes of a groove type heat collector just constitute difference in height, overall floor space is reduced, saves cost.
Description
Technical field
Photo-thermal electro-technical field is the utility model is related to, more particularly to a kind of stepped ramp type gravity salt discharge formula heat collecting field.
Background technology
In the prior art, two groups of groove type heat collectors, salt are included using the solar parabolic through power generation system of medium of fused salt
Water- to-water heat exchanger, steam turbine generator, cold tank, hot tank and row's melting salt system；Groove type heat collector is by multiple independent pilot trench formula thermal-arrests
Device forms, and each sub- groove type heat collector includes the trailing arm that can be rotatably set on pedestal, and the reflection of support is positioned by trailing arm
Silver mirror, the thermal-collecting tube for being fixedly connected with described trailing arm and being arranged at reflection silver mirror focal point, every group of groove type heat collector it is multiple
The thermal-collecting tube of sub- groove type heat collector is sequentially connected in series, and the parallel front and rear setting of two groups of groove type heat collectors, its one end is connected by bridge section connecting tube
Lead in succession, the other end is connected by pipeline with cold tank or hot tank respectively, while hot tank via pipeline or via after brine heat exchanger with
Cold tank connection, loop is formed with this.
But existing heat collecting field, because place is big, round-trip length reaches 800m, and visiting face to face is repaiied, fused salt failure of pump, valve
Or flange, it is necessary to the fused salt in pipeline be discharged totally, how fast and effective salt discharge just turns into when swivel joint leaks salt
Continue to solve the problems, such as.
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 stepped ramp type gravity row
Salt formula heat collecting field.
Technical scheme is used by realize the purpose of this utility model：
A kind of stepped ramp type gravity salt discharge formula heat collecting field, including be sequentially communicated cold tank, the first groove type heat collector, bridge section connection
Pipe, the second groove type heat collector and hot tank, wherein, the first described groove type heat collector heat collector includes multiple pilot trench formula thermal-arrests
Device, the thermal-collecting tubes of multiple sub- groove type heat collectors of the first described groove type heat collector set with plane-parallel and along remote respectively
Cold tank direction is highly stepped up, the thermal-collecting tubes of multiple sub- groove type heat collectors of the second described groove type heat collector respectively with level
Face be arranged in parallel and highly gradually reduced along the direction close to hot tank, the first at least described groove type heat collector and bridge section connecting tube
Base station corresponding to adjacent sub- groove type heat collector is higher than the corresponding base station of corresponding second groove type heat collector, with the first slot type collection
Hot device corresponding bridge section connection tube end by be connected to intake valve, the first described groove type heat collector connecting tube low spot and
The connecting tube low spot of second groove type heat collector is other respectively to be connected to salt discharge branch pipe, and thin salt is provided with below described salt discharge branch pipe
Tank.
Sub- groove type heat collector pedestal bottom formed with base station to form described difference in height, adjacent pilot trench formula thermal-arrest
The difference in height of base station corresponding to device is in 20-50cm.
Described salt discharge branch pipe connects skirt with what described connecting tube was vertically arranged or was vertically arranged, draws with described connecing
The high-temperature bellow end that pipe is fixedly connected, and it is fixedly installed on the adpting flange of high-temperature bellow end.
Temperature sensor is provided with the connecting tube for connecing on skirt or being connected with connecing skirt of described salt discharge branch pipe.
Described thin salt cellar includes storage salt cellar, and be arranged on described storage salt tank top enters salt pipe, side be connected on described in enter
Air inlet pipe on salt pipe, and the salt discharging pipe connected with described storage salt pot bottom, described enters salt pipe and described air inlet pipe
Other contact top is provided with into salt control valve, is removably secured in the described end for entering salt pipe and salt discharging pipe and is provided with sealing
Flange.
Described salt discharge tank includes circle tube tank body, the cover plate at described tank body both ends is fixedly installed on, in described tank
Body bottom is provided with support, and hanger is provided at both ends with the top of described tank body, and described tank base is tapered, and described goes out
Salt pipe sets bottom inlet to be arranged on bottom lowest part, and described salt discharging pipe is L-type, the horizontal segment of its bottom and described tank body
Bottom is fixedly connected and connected, and its vertical section is on the outside of described tank body and extends upwardly at the top of described tank body.
The first described groove type heat collector and the second groove type heat collector include multiple sub- groove type heat collectors, described son respectively
Set respectively between the thermal-collecting tube of groove type heat collector and between thermal-collecting tube and cold tank or hot tank by being connected via high-temperature bellow
Swivel joint, described swivel joint include connection outer barrel and two inner cylinders, and described inner cylinder includes one end and described height
What warm bellows was fixedly connected connects skirt, is fixedly installed on the butt-joint corrugated pipe for connecing the skirt other end, and is fixedly installed on pair
The sealing ring of corrugated tube end is connect, the sealing ring of described two inner tubes keeps being arranged at described connection outer barrel in sealing contactly
Inside, the described skirt that connects rotatably are fixedly connected with being connected outer barrel respectively and the sealing ring described in two is kept pre- level pressure
Power.
Connect in described on skirt formed with positioning step, axle sleeve or bearing are arranged with described positioning step, with
The pressure ring that described connection outer barrel is fixedly connected, which is held, compresses two sealing rings on described bearing or axle sleeve.
A kind of Salt discharge method of described stepped ramp type gravity salt discharge formula heat collecting field, comprises the following steps,
1) cold salt pump is closed, and by the first described groove type heat collector and the second groove type heat collector make-up,
Described make-up refers to that upset does not receive sunlight sunshine to lowest order, this angle, avoids because pipe content face
Cause temperature too high less.
2) when not having fused salt inflow in hot tank, hot tank fused salt entrance is closed, opens intake valve, opens salt discharge branch pipe, is melted
Salt enters under gravity dredges salt cellar,
3) when flow change is small, with respect to the thermal-collecting tube described in salt discharge branch pipe from far near lifting step by step, when described temperature
When sensor-detected temperature is less than 300 DEG C, stops salt discharge and either rotate described the first groove type heat collector or the second slot type collection
Hot device is to be reheated.
The process purged in pipe is also carried out using high temperature nitrogen.
Compared with prior art, the beneficial effects of the utility model are：
Heat collecting field of the present utility model, continue the conventional design in conventionally employed integral level face, but utilize base station
The height for changing two neighboring sub- groove type heat collector, the structure of respective sub- groove type heat collector and assembling form and operation are set
It is not affected, the same keep level of thermal-collecting tube is set, but multiple thermal-collecting tubes of a groove type heat collector are just formed
Difference in height, and difference in height is also formed between two groups of sub- groove type heat collectors, here it is bridge section connecting tube have with horizontal plane office
Constant slope, whole device have unique a peak and two relative low points, set air inlet in high point, are set in low spot
Salt discharge branch pipe is put, gravity salt discharge can be realized using angle of inclination, meanwhile, it is preferably that the low west in east is high using being obliquely installed, such energy
A day angle is met with more preferable, while two groups of groove type heat collectors are set using different height, reduces the masking that interacts, can be effective
The spacing of two groups of groove type heat collectors is reduced, reduces overall floor space, saves cost.
Brief description of the drawings
Fig. 1 show the part-structure schematic diagram of heat collecting field gravity type salt discharge device of the present utility model.
Fig. 2 show the mirror field of the present utility model salt discharge structural representation for dredging salt cellar.
Fig. 3 show the schematic side view shown in Fig. 2.
Fig. 4 show rotary joint structure 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, rank type gravity salt discharge formula heat collecting field of the present utility model includes cold tank, the first slot type being sequentially communicated
Heat collector 130, bridge section connecting tube 110, the second groove type heat collector and hot tank, wherein, the first described groove type heat collector thermal-arrest
Device includes multiple sub- groove type heat collectors, the thermal-collecting tubes of multiple sub- groove type heat collectors of the first described groove type heat collector respectively with water
Plane be arranged in parallel and is highly stepped up along away from cold tank direction, multiple pilot trench formula thermal-arrests of the second described groove type heat collector
The thermal-collecting tube of device sets with plane-parallel and highly gradually reduced along the direction close to hot tank, the first at least described groove respectively
The corresponding base station of the formula heat collector groove type heat collector adjacent with bridge section connecting tube is higher than pair of corresponding second groove type heat collector
Base station 100 is answered, intake valve 120 is connected to by bridge section corresponding with the first groove type heat collector connection tube end, described the
The connecting tube low spot of the low spot of the connecting tube of one groove type heat collector and the second groove type heat collector is other respectively to be connected to salt discharge branch pipe 140,
Thin salt cellar is provided with below described salt discharge branch pipe.Sub- groove type heat collector pedestal bottom formed with base station to form
The difference in height stated, the difference in height of base station is in 20-50cm corresponding to adjacent sub- groove type heat collector.
Described connecting tube is equally designed using difference in height, i.e. the connecting tube of connexon groove type heat collector and cold tank or hot tank
Equally set using gradient, to form the minimum of the side in the exit of the first sub- groove type heat collector and the second sub- groove type heat collector
Point, so can be by the cold all pipelines in salt pump rear until the fused salt of hot tank entrance all discharges totally.
Heat collecting field of the present utility model, continue the conventional design in conventionally employed integral level face, but utilize base station
The height for changing two neighboring sub- groove type heat collector, the structure of respective sub- groove type heat collector and assembling form and operation are set
It is not affected, the same keep level of thermal-collecting tube is set, but multiple thermal-collecting tubes of a groove type heat collector are just formed
Difference in height, and difference in height is also formed between two groups of sub- groove type heat collectors, here it is bridge section connecting tube have with horizontal plane office
Constant slope, whole device have unique a peak and two relative low points, set air inlet in high point, are set in low spot
Salt discharge branch pipe is put, gravity salt discharge can be realized using angle of inclination, meanwhile, it is preferably that the low west in east is high using being obliquely installed, such energy
A day angle is met with more preferable, while two groups of groove type heat collectors are set using different height, reduces the masking that interacts, can be effective
The spacing of two groups of groove type heat collectors is reduced, reduces overall floor space, saves cost.
Meanwhile first temperature in groove type heat collector it is relatively low, it is used relatively large angle, salt discharge speed is fast, has
Solidified beneficial to fused salt is avoided.
Moreover, using being obliquely installed, it is relatively slow in the first relatively low groove type heat collector section fused salt flow velocity of temperature, improve
The temperature rise of this section, and accelerate its flowing in the second groove type heat collector section, this height of temperature of molten salt, so can be in global level
The heat exchange efficiency of fused salt is improved, improves overall thermal-arrest ability.
What described salt discharge branch pipe 140 included being vertically arranged or being vertically arranged with described connecting tube connects skirt 141, with
The described high-temperature bellow 142 for connecing skirt and being fixedly connected, and it is fixedly installed on the adpting flange of high-temperature bellow end
142.Temperature sensor is provided with the connecting tube for connecing on skirt or being connected with connecing skirt of described salt discharge branch pipe.
It is attached using high-temperature bellow, makes it more convenient with the connection of thin salt cellar, and is hung carrying out thin salt cellar
Dress is portable, can keep rational safe distance with connecting tube, improve ease of use and security, meanwhile, erected using non-
Directly set connect skirt and connect skirt or connecting tube with connecing skirt junction on temperature sensor is set, utilize salt outlet side
Temperature detection, fused salt can be sensed whether discharge and finish, moreover, by the monitoring temperature to emission point, also be avoided that fused salt temperature
Spend low or too high.
Further, for ease of accelerating salt discharge, the cleanliness factor of salt discharge is especially improved, in the valve of described intake valve 120
Mouth side is additionally provided with intake valve port to be connected with Nitrogen source gases, and gas is equipped with the connecting pipeline of intake valve port and source of the gas
Heating arrangements are with heated nitrogen.
Specifically, mirror field of the present utility model salt discharge is arranged on described storage salt cellar with salt cellar, including storage salt cellar 1 is dredged
On it is corresponding with described salt discharge branch pipe 140 enter salt pipe 2, side is connected on the described air inlet pipe 3 entered on salt pipe, and with it is described
Storage salt pot bottom connection salt discharging pipe 5, be removably secured in the described end for entering salt pipe and salt discharging pipe and be provided with sealing
Flange.Wherein, can also be set on described contact top by salt pipe and described air inlet pipe of entering into salt control valve.
The utility model utilizes taps into tracheae by salt pipe side, then utilizes the salt discharging pipe of bottom connection to form vapour-pressure type row
Salt mode, air pressure salt discharge it is simple and reliable and also can effective emptying, ensure salt discharge it is quick while will not to fused salt form destroy, make
It can be recycled.
Specifically, described salt discharge tank 1 includes circle tube tank body 10, is fixedly installed on the cover plate at described tank body both ends
11, described tank base is provided with support 4, hanger 12 is provided at both ends with the top of described tank body.Described enters salt pipe
It is arranged on described tank body middle top or side.Described salt discharging pipe is L-type, the horizontal segment of its bottom and described tank body bottom
Portion is fixedly connected and connected, and its vertical section is on the outside of described tank body and extends upwardly at the top of described tank body.It is excellent
Selection of land, described tank base is tapered, and the described salt pipe that goes out sets bottom inlet to be arranged on bottommost.
Using combined type salt discharge tank, cover plate and the tank body of both sides are bolted, and are easily installed preparation, and when generation
Cover plate integral demounting can be repaired during situation, increase operating space, improve property easy to use, meanwhile, utilize L-type salt discharging pipe
And outlet is higher than tank body, it is avoided that unexpected leakage produces disaster.
Meanwhile to improve safety in utilization, safety dumping pipe is also communicatively provided with described tank body, in described peace
Safety valve is serially connected with the middle part of full delivery pipe, before and after described safety valve and is connected to by safety and manages, on the described other pipe of safety
Control valve is serially connected with, and by the control to control valve, the safety that may be implemented in into inner air during salt is discharged, and in salt discharge
Also safety anti-explosive protective action can be played, it is preferable that described safety dumping tube end is provided with temperature sensor, works as salt discharge
During process, high-temperature gas spilling is had if safety valve is opened, sensing of the temperature sensor to temperature is set by exit,
Play a part of additional alarm.Meanwhile be to reduce valve to set, described air inlet pipe is inclined upwardly setting, so, when fused salt enters
It can keep open state when entering tank body, and be easy to the gas overflowing of tank body.
The first described groove type heat collector and the second groove type heat collector include multiple sub- groove type heat collectors, described son respectively
It is respectively arranged between the thermal-collecting tube of groove type heat collector and between thermal-collecting tube and cold tank or hot tank and is connected via high-temperature bellow 151
Swivel joint 7,
Meanwhile many places use high-temperature bellow, the company between two thermal-collecting tubes is realized using two bellowss and swivel joint
Connect, the connection of thermal-collecting tube and fixed pipeline is realized using two bellowss and swivel head, described fixation pipeline refers to bridge section connection
The pipeline of cold tank or hot tank is managed or be connected to, using the combination of two bellowss and swivel joint, ensures respective self-movement
While, and high-temperature bellow can also effectively buffer loine pressure, improve the safety and service life of thermal-collecting tube.
As one of embodiment, described swivel joint 7 includes the connection to be fixedly connected with pedestal
Outer barrel 71 and two inner cylinders 72, described inner cylinder connect skirt 73 including what one end was fixedly connected with high-temperature bellow, and fixation is set
Put and connecing the butt-joint corrugated pipe 74 of the skirt other end, be fixedly installed on the sealing ring 75 of butt-joint corrugated pipe end, described two
Inside the sealing ring retaining surface contact of inner tube and hermetically setting and described connection outer barrel 71, described connects skirt respectively with connecting
Outer barrel is connect rotatably to be fixedly connected and the sealing ring described in two is kept predetermined pressure.The described skirt that connects is stainless steel tube,
To realize pressure transmission and be fixedly connected.
Wherein, connect in described on skirt formed with positioning step, axle sleeve or axle are arranged with described positioning step
76 are held, the pressure ring 77 being fixedly connected with described connection outer barrel flange form is held makes two sealings on described bearing or axle sleeve
Ring compresses.That is, outer barrel both ends are connected formed with flange ring, described pressure ring includes can be inserted into the pressure of described connection outer barrel
Tight ring and change the adpting flange being fixedly connected with for being bolted to connection with described flange ring with described compression.
Further, to improve assembling and being centered about effect, described pressure ring is divided ring, i.e., cuts open tubular pressure ring between two parties vertically
The design for two halves is opened, is so easy to the design of both sides bellows, the same sealing docking effect that can improve entirety, docking is fixed
The inner surface of pressure ring afterwards directly keeps gap to coordinate with connecing skirt.
Electric heating mechanism is provided with outside inner cylinder in described connection outer barrel outside or inside, in described connection outer barrel
Bottom is provided with Lou salt mouth.
Certain length and the butt-joint corrugated pipe of rigidity is respectively welded in the skirt joint that connects of swivel joint of the present utility model,
And high-abrasive material sealing ring is welded again in the other end of butt-joint corrugated pipe, after the completion of swivel joint assembling, sealing ring is docked and made
Butt-joint corrugated pipe has certain decrement, and then stroke after thermal expansion is effectively utilized, there is provided to required axial direction in sealing contact
Pretightning force, at the same the working space of the rotary components such as working media and bearing is independent.That is, directly sealed using pipeline pair
The structure type connect, eliminate dependence of the components such as bearing to sealing property；Under high-temperature work environment, butt-joint corrugated pipe is not
The stroke of pipeline in only absorbable swivel joint, and then increase the decrement of butt-joint corrugated pipe, hot environment is positively utilized
Under the stroke of each assembly material improve sealing property, more to improve assembling structure, to eliminate the components such as bearing in soda acid work
Make the dependence to sealing property in medium.
Wherein, the length of butt-joint corrugated pipe is more than 100N/mm in 30-80mm, rigidity.Wherein, it is the overall sealing of guarantee
Effect, it is larger to seal the compression pressure of interannular after mounting, typically in 2Mpa or more, when inside stream crosses high-temperature molten salt, and such as 580
During DEG C high-temperature molten salt, the pressure of two sealing interannulars can reach 4Mpa even more than.The butt-joint corrugated pipe material is stainless by high temperature resistant
Steel, as 304H is made, in 0.6-1mm, such as 0.8mm, pitch is overall in 8-12mm, such as 10mm for the wall thickness thickness of butt-joint corrugated pipe
Butt-joint corrugated pipe length is more than 100N/mm in 30-80mm, preferably 40-70cm, such as 50cm, 60cm, butt-joint corrugated pipe rigidity, just
Flexible in the range of degree to belong to elastic deformation, no fatigue influences, and can meet to use for a long time, needed for butt-joint corrugated pipe length and calculating
Decrement is relevant, and sealing ring material is hard alloy, and e.g., Si Taili stainless steels, butt-joint corrugated pipe is fixedly connected with connecting tube
Realized using specialty welding.
Described sealing ring is corresponding plane, domatic or cambered surface sealing pair.I.e. described sealing ring has three kinds of structures：The
One kind is plane sealing structure, that is, it is that plane docks form to contact sealing surface；Second is conical surface sealing structure, i.e. contact sealing
Face is cone match form；The third is ball face sealing structure, that is, contacts sealing surface as convex annular, concave spherical surface fit form, close
The obverse design of seal ring, along with sealing ring after flexible bellow welding with, from centering, even more improving sealing ring and connecing
The frictional force and sealing property of contacting surface.
Meanwhile the utility model discloses the Salt discharge method of described gravity type salt discharge formula heat collecting field, comprise the following steps,
1) cold salt pump is closed, and by the first described groove type heat collector and the second groove type heat collector make-up,
Described make-up refers to that upset does not receive sunlight sunshine to lowest order, this angle, avoids because of fused salt in pipeline
Cause temperature too high less；
2) when not having fused salt inflow in hot tank, hot tank fused salt entrance is closed, opens intake valve, opens salt discharge branch pipe, is melted
Salt enters under gravity dredges salt cellar,
3) when flow change is small, with respect to the thermal-collecting tube described in salt discharge branch pipe from far near lifting step by step, when described temperature
When sensor-detected temperature is less than 300 DEG C, stops salt discharge and either rotate described the first groove type heat collector or the second slot type collection
Hot device is to be reheated, and finally, the process purged in pipe is also carried out using high temperature nitrogen.
4) when in mirror field fused salt discharge it is clean, the control valve closed on described emergency bypass, close into salt control valve, will
The blind flange of salt discharge tube end is pulled down, and the end for entering salt pipe is sealed by sealing flange；
5) described air inlet pipe and source nitrogen are connected, while described storage salt cellar is lifted, store up salt cellar quilt as mentioned
Sling or there is scissors fork support to be raised up to cold tank match height, it is such as that the outlet and the height for returning salt mouth of cold tank that go out salt pipe is neat
It is flat or slightly higher, wherein, to prevent that temperature of molten salt is too low in tank body, in described air inlet pipe and described source nitrogen, such as nitrogen
Also string is provided with duct type gas-heating apparatus between bottle, is incubated by way of hot gas for described fused salt,
6) fused salt stored up in salt cellar is discharged into cold tank from tank body using the pressure of source nitrogen.
Salt discharge method of the present utility model, it is combined by lifting the gentle body pressure of tank body, the pressure of gas can be reduced, carried
High safety in utilization, and the fused salt of storage salt cellar and cold tank is reheated using the gas for pressing fused salt, effectively avoid
Solidified caused by temperature of molten salt is too low.Salt discharge method of the present utility model, formed using geographical advantage in heat collecting field installation process
Drop, salt discharge speed is accelerated under the conditions of fused salt gravity and drop.And monitor temperature and flow in real time in discharge process,
It is set to raise height by rotating thermal-collecting tube, when accelerating discharge, and being discharged for long-time, also using collection fuel factor again
Heating, it is ensured that emptying.
In summary, gravity salt discharge feature one is to flow into minimum point by fused salt self gravitation；Second heat collecting field was installed
Drop is formed using geographical advantage in journey, salt discharge speed is accelerated under the conditions of fused salt gravity and drop.For extensive thermal-arrest
Thin salt cellar can be lifted into transport vehicle using lifting appliance and transported near the cold tank of closer distance by the salt discharge of field fused salt.
Salt discharge method of the present utility model, drop is formed using geographical advantage in heat collecting field installation process, in fused salt gravity
With salt discharge speed is accelerated under the conditions of drop.And monitor temperature and flow in real time in discharge process, by rotating thermal-collecting tube
It is raised height, when accelerating discharge, and being discharged for long-time, also heated again using collection fuel factor, it is ensured that emptying.
And while gravity salt discharge is realized, operating condition is unaffected, especially each shaft strength and angular distance etc. enough can be with
Using existing scheme, development cost again is reduced.
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 (8)
1. a kind of stepped ramp type gravity salt discharge formula heat collecting field, it is characterised in that including cold tank, the first slot type thermal-arrest being sequentially communicated
Device, bridge section connecting tube, the second groove type heat collector and hot tank, wherein, the first described groove type heat collector heat collector includes multiple
Sub- groove type heat collector, the thermal-collecting tube of multiple sub- groove type heat collectors of the first described groove type heat collector are set with plane-parallel respectively
Put and be highly stepped up along away from cold tank direction, the thermal-collecting tube of multiple sub- groove type heat collectors of the second described groove type heat collector
Set with plane-parallel and highly gradually reduced along close to the direction of hot tank respectively, the first at least described groove type heat collector with
Base station corresponding to the adjacent sub- groove type heat collector of bridge section connecting tube is higher than the corresponding base station of corresponding second groove type heat collector, with
Intake valve is connected to by the corresponding bridge section connection tube end of first groove type heat collector, in the connection of the first described groove type heat collector
The connecting tube low spot of the low spot of pipe and the second groove type heat collector is other respectively to be connected to salt discharge branch pipe, is set below described salt discharge branch pipe
It is equipped with thin salt cellar.
2. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 1, it is characterised in that in the pedestal of sub- groove type heat collector
Bottom formed with base station to form described difference in height, the difference in height of base station is in 20- corresponding to adjacent sub- groove type heat collector
50cm。
3. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 1, it is characterised in that described salt discharge branch pipe with it is described
Connecting tube be vertically arranged or be vertically arranged connect skirt, and the described high-temperature bellow end for connecing skirt and being fixedly connected, with
And it is fixedly installed on the adpting flange of high-temperature bellow end.
4. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 3, it is characterised in that described connecing for salt discharge branch pipe is drawn
Temperature sensor is provided with the connecting tube being connected on pipe or with connecing skirt.
5. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 1, it is characterised in that described thin salt cellar includes storage salt
Tank, be arranged on described storage salt tank top enters salt pipe, side be connected on described in the air inlet pipe entered on salt pipe, and with described storage
The salt discharging pipe of salt pot bottom connection, the described salt pipe that enters are provided with into salt control valve with contact top by described air inlet pipe,
The described end for entering salt pipe and salt discharging pipe, which is removably secured, is provided with sealing flange.
6. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 5, it is characterised in that described salt discharge tank includes cylinder
Shape tank body, the cover plate at described tank body both ends is fixedly installed on, described tank base is provided with support, in described tank body
Top is provided at both ends with hanger, and described tank base is tapered, and described salt discharging pipe is arranged on bottom lowest part, described row
Salt pipe is L-type, and the horizontal segment of its bottom is fixedly connected and connected with described tank base, and its vertical section is located at described tank body
Outside is simultaneously extended upwardly at the top of described tank body.
7. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 1, it is characterised in that the first described groove type heat collector
Include multiple sub- groove type heat collectors respectively with the second groove type heat collector, between the thermal-collecting tube of described sub- groove type heat collector and collect
Swivel joint by being connected via high-temperature bellow is set respectively between heat pipe and cold tank or hot tank, and described swivel joint includes connecting
Outer barrel and two inner cylinders are connect, described inner cylinder connects skirt including what one end was fixedly connected with described high-temperature bellow, fixed
The butt-joint corrugated pipe for connecing the skirt other end is arranged on, and is fixedly installed on the sealing ring of butt-joint corrugated pipe end, described two
The sealing ring of root inner tube keeps being arranged at described connection outer barrel in sealing contactly, and described connects skirt respectively with being connected outside
Cylinder is rotatable to be fixedly connected and the sealing ring described in two is kept predetermined pressure.
8. stepped ramp type gravity salt discharge formula heat collecting field as claimed in claim 7, it is characterised in that formed in described connecing on skirt
There is positioning step, axle sleeve or bearing are arranged with described positioning step, the pressure ring being fixedly connected with described connection outer barrel
Holding compresses two sealing rings on described bearing or axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158466.XU CN207196972U (en) | 2017-09-10 | 2017-09-10 | Stepped ramp type gravity salt discharge formula heat collecting field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158466.XU CN207196972U (en) | 2017-09-10 | 2017-09-10 | Stepped ramp type gravity salt discharge formula heat collecting field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207196972U true CN207196972U (en) | 2018-04-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109489276A (en) * | 2017-09-10 | 2019-03-19 | 甘肃光热发电有限公司 | Stepped ramp type gravity salt discharge formula heat collecting field and Salt discharge method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489276A (en) * | 2017-09-10 | 2019-03-19 | 甘肃光热发电有限公司 | Stepped ramp type gravity salt discharge formula heat collecting field and Salt discharge method |
| CN109489276B (en) * | 2017-09-10 | 2024-03-29 | 甘肃光热发电有限公司 | Step type gravity salt-discharging type heat collection field and salt-discharging method |
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