CN116995043A - Thyristor valve section jacking device - Google Patents
Thyristor valve section jacking device Download PDFInfo
- Publication number
- CN116995043A CN116995043A CN202311030270.2A CN202311030270A CN116995043A CN 116995043 A CN116995043 A CN 116995043A CN 202311030270 A CN202311030270 A CN 202311030270A CN 116995043 A CN116995043 A CN 116995043A
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- Prior art keywords
- cavity
- cooling
- thyristor valve
- group
- liquid
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- 238000001816 cooling Methods 0.000 claims abstract description 125
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 239000000110 cooling liquid Substances 0.000 claims abstract description 41
- 230000000670 limiting effect Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010992 reflux Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 50
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 230000017525 heat dissipation Effects 0.000 claims description 23
- 239000001569 carbon dioxide Substances 0.000 claims description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000010438 heat treatment Methods 0.000 abstract description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000004323 potassium nitrate Substances 0.000 description 5
- 235000010333 potassium nitrate Nutrition 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/433—Auxiliary members in containers characterised by their shape, e.g. pistons
- H01L23/4338—Pistons, e.g. spring-loaded members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a thyristor valve section jacking device, which belongs to the technical field of high-power electronic rectifying and inverting devices, and comprises end plates, thyristor valve groups arranged in series, end plates arranged at two ends of the thyristor valve groups, and further comprises: and the limiting cooling mechanism is arranged on the outer side of the thyristor valve group and is fixedly connected with the end plate. According to the invention, the effect of driving alcohol solution with lower volatility to volatilize and push the piston plate through the temperature of the thyristor valve group during working is realized, so that cooling liquid is pushed to enter the cooling cavity through the liquid lifting pipe group to dissipate heat through the piston plate, the cooling cavity is continuously pumped to a higher liquid level through continuous heating, the cooling cavity is enabled to flow back through the reflux pipe group through the hydraulic pushing flow guide sliding block, the cooling and cooling effects of the connecting frame, the liquid storage cavity and the thyristor valve group are realized, and the water cooling effect of automatic circulation is realized through utilizing the temperature rise of the thyristor valve group during working.
Description
Technical Field
The invention relates to the technical field of high-power sub-rectification and inversion devices, in particular to a thyristor valve section jacking device.
Background
The thyristor valve refers to an electric and mechanical combination of a thyristor stage, and is provided with a connecting part, an auxiliary part and a mechanical structure, a thyristor valve section and a jacking device thereof are disclosed in the prior art aiming at the thyristor valve section jacking technology such as publication No. CN103354233A, the thyristor valve comprises a jacking rod, an ejector rod and a compression nut, wherein the axis of the jacking rod extends along the left-right direction and is used for guiding and moving the jacking rod assembled on a framework of the thyristor valve section along the left-right direction when the thyristor valve is used, the right end of the jacking rod is provided with a jacking structure for jacking the left end part of a valve group of the thyristor valve section, the left side of the jacking rod on the jacking structure is provided with a bearing structure for bearing axial loading force exerted by a corresponding loading mechanism, and the periphery of the jacking rod is provided with a compression nut which is used for supporting and matched with the right plate surface of the left end plate of the framework. The invention provides a jacking device which has a simple structure and long service life;
however, the prior art has a certain limitation, the prior art mainly aims at the fixing measure of a thyristor valve section, and lacks a perfect heat dissipation and fire control mechanism during fixing, because the existing thyristor module belongs to a silicon element, the common characteristic of the silicon element is poor overload capability, when the working temperature of the thyristor is too high, the self heat dissipation capability of the thyristor is poor due to the fact that the ambient temperature and the temperature of a cooling medium are high, the junction temperature of the thyristor is easy to be too high, the activity of electrons and holes in the thyristor is increased, the capability of capturing charges of a PN junction is increased, the reverse leakage current of the PN junction and the static loss of the thyristor are increased, meanwhile, when a positive voltage is added to a control electrode, the leakage current is increased due to the fact that the energy of released charges replaces the thermal movement of molecules, and further, when the thyristor is subjected to leakage current, the service time is long, the parameter performance is reduced or the voltage fault caused by line problems, the thyristor is easy to be burnt, and safety accidents are caused.
How to invent a thyristor valve segment jacking device to improve the problems is a problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
In order to make up for the defects, the invention provides a thyristor valve section jacking device, which aims to solve the problem that the prior art has certain defects in heat dissipation and fire protection.
The invention is realized in the following way:
the invention provides a thyristor valve section jacking device, which comprises end plates, thyristor valve groups arranged in series, end plates arranged at two ends of the thyristor valve groups, and further comprises:
the limiting cooling mechanism is arranged on the outer side of the thyristor valve group and is fixedly connected with the end plate, and the layered cavity arranged in the liquid storage cavity below the limiting cooling mechanism is used for heating and volatilizing alcohol solution in the liquid storage cavity to push cooling liquid to rise and dissipate heat and store the cooling liquid, so that the cooling liquid can automatically flow back after the temperature rises to realize self-circulation water cooling and heat dissipation by utilizing the working temperature rise;
the airtight cavity enables air in the airtight cavity to expand when the temperature is too high, the piston sliding block arranged in the airtight cavity is pushed to slide, the storage cavity arranged at the top of the airtight cavity is communicated with the liquid path in the limit cooling mechanism, the temperature of cooling liquid in the limit cooling mechanism is reduced, and further efficient heat dissipation is carried out on the thyristor valve group.
Preferably, the end plate is symmetrically arranged relative to the thyristor valve group, two groups of conducting plates which are respectively connected with the input end and the output end of the thyristor valve group are symmetrically arranged on the side edge of the end plate, a plurality of groups of limiting cooling mechanisms which are designed in series are fixedly arranged on the outer side wall of the thyristor valve group, a buffer plate is arranged between the end plate and the thyristor valve group and between the end plate and the limiting cooling mechanisms, a connecting sleeve is fixedly arranged on the side wall of the end plate, a group of compression rods are movably sleeved on the inner side of the connecting sleeve, buffer springs are connected between the inner side of the compression rods and the inner side end of the connecting sleeve through a group of limiting pistons, the other ends of the compression rods penetrate through the other group of end plates, the compression rods are in threaded connection with the end plate, fastening nuts used for fastening are arranged on the outer side wall of the compression rods, a carbon dioxide storage tank is fixedly arranged on the top of the end plate, the limiting cooling mechanisms comprise a connecting frame, a liquid storage cavity is fixedly arranged on the inner side wall of the liquid storage cavity, a piston plate is movably sleeved on the inner side limiting sealing of the liquid storage cavity, a cooling cavity, a sealing cavity is formed on the connecting position of the top side wall of the connecting frame, a cooling cavity, a guide cavity and a sealing cavity are arranged on the top of the air storage cavity.
Preferably, the inside of the connecting frame is provided with a plurality of groups of liquid lifting pipe groups, one end of the liquid lifting pipe groups is communicated with the top of the liquid storage cavity, the other end of the liquid lifting pipe groups is communicated with the upper part of the cooling cavity, one side of the connecting frame symmetrical to the liquid lifting pipe groups is internally provided with a plurality of groups of reflux pipe groups, and the bottom ends of the reflux pipe groups are communicated with the top of the liquid storage cavity.
Preferably, a plurality of groups of heat conducting fins are fixedly arranged in the cooling cavity, the bottoms of the heat conducting fins are in contact with the bottoms of the cooling cavity, gaps are formed in the bottoms of the heat conducting fins, and the tops of the heat conducting fins extend to the outside of the cooling cavity.
Preferably, the inner limit movable seal of the airtight cavity is sheathed with a guide sliding block, the guide sliding block is made of permanent magnet materials, a fixed magnetic block which is designed opposite to the magnetic pole of the guide sliding block is fixedly arranged in the guide cavity, and a reset spring is fixedly arranged between the fixed magnetic block and the guide sliding block.
Preferably, the hole that is linked together with cooling chamber inside has been seted up to one side that the cooling chamber was pressed close to the water conservancy diversion chamber, and the hole groove that is linked together with the back flow group has still been seted up to the both sides in water conservancy diversion chamber, and T shape runner pipe has been seted up to the inside of water conservancy diversion slider, and the inside runner pipe one end of water conservancy diversion slider is towards the cooling chamber, and other both ends are towards the direction of back flow group.
Preferably, a group of piston sliding blocks are sleeved in the inner limiting sealing movable sleeve of the airtight cavity, a group of straight guide pipes are sleeved between the airtight cavity and the sealing cavity in a limiting movable sleeve mode, a round pushing block is arranged at one end, extending to the inside of the airtight cavity, of each straight guide pipe, a compression spring is arranged between the round pushing block and the inner side wall of the airtight cavity, and a cutter head is arranged at one end, extending to the inside of the sealing cavity, of each straight guide pipe.
Preferably, the airtight cavity is provided with an inclined duct communicating with the inside of the cooling cavity and the bottom of the airtight cavity, and the top of the airtight cavity is provided with an opening corresponding to the bottom opening of the storage cavity.
Preferably, the top opening of the airtight cavity corresponds to the top opening of the inclined guide pipe along the vertical direction, and a pipeline which is vertically arranged is arranged in the piston sliding block.
Preferably, the inside of the sealing cavity is kept in a communicated state through the inside of a group of pipelines and the carbon dioxide storage tank, the inside of the sealing cavity is in a T-shaped design, the lower half inner side wall of the sealing cavity is limited and movably sleeved with a sealing piston, a group of extension springs are connected between the top of the sealing piston and the inner side top of the sealing cavity, a group of connecting wires are connected between the bottom of the sealing piston and the inner side bottom of the sealing cavity, and a porous spray head communicated with the inside of the sealing cavity is arranged at the bottom of the sealing cavity.
The beneficial effects of the invention are as follows:
the cooling device has the advantages that the effect of driving alcohol solution with lower volatility to volatilize and push the piston plate through the temperature of the thyristor valve block during operation is realized, cooling liquid is pushed to enter the cooling cavity through the liquid lifting pipe group to dissipate heat through the piston plate, the cooling cavity is continuously pumped to a higher liquid level through continuous heating, the cooling cavity is pushed to flow guide sliding blocks to flow back through the backflow pipe group through hydraulic pressure, the cooling and cooling effects are realized on the connecting frame, the liquid storage cavity and the thyristor valve block, and the automatic circulation water cooling effect is realized by utilizing the temperature rise during operation of the thyristor valve block;
when the working temperature of the thyristor valve block is too high, the movement of the piston slide block is pushed by gas expansion, so that the potassium nitrate solution in the storage cavity and the cooling liquid in the cooling cavity are mixed to absorb a large amount of heat, the self-circulation water cooling of the limiting cooling mechanism is used for further efficiently absorbing heat and cooling the connecting frame and the liquid storage cavity, the cooling effect is further achieved on the thyristor valve block, the increase of the electron and hole activity in the thyristor valve block caused by the fact that the temperature of the thyristor valve block is too high is avoided, the charge capturing capacity of a PN junction is increased, the PN junction reverse leakage current and the static loss of the thyristor valve block are further increased, and therefore the problem that when a positive voltage is applied to a control electrode, the leakage current is increased along with the fact that the energy of released charges replaces molecular heat movement is solved, and the safe and stable operation of the thyristor valve block is ensured;
the device realizes the remarkable temperature change during the firing and burning of the thyristor valve block, enables the carbon dioxide storage tank to be communicated with the porous spray head through the movement of the sealing piston, and automatically sprays carbon dioxide to extinguish and cool the thyristor valve block, realizes the automatic fire extinguishment and cool down of the thyristor valve block during the firing, prevents the fire from spreading, and effectively reduces the harm of the thyristor valve block during the spontaneous combustion caused by circuit faults
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a thyristor valve segment jacking device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a limiting and cooling mechanism of a thyristor valve segment jacking device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an internal structure of a limiting and cooling mechanism of a thyristor valve segment jacking device according to an embodiment of the present invention;
FIG. 4 is a schematic plan view of the inner structures of the airtight cavity and the airtight cavity of the thyristor valve segment jacking device according to the embodiment of the invention;
FIG. 5 is a schematic diagram of the internal structure of a liquid storage cavity of a thyristor valve segment jacking device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the internal structure of a flow guiding slider of a thyristor valve segment jacking device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the whole structure of a limiting and cooling mechanism when the liquid level of a cooling cavity of a thyristor valve section jacking device is increased according to the embodiment of the invention;
FIG. 8 is a schematic diagram of the internal structure of a diversion cavity when the liquid level of a cooling cavity of a thyristor valve section jacking device is increased according to the embodiment of the invention;
FIG. 9 is a schematic plan view of a thyristor valve segment roof pressure apparatus according to an embodiment of the present invention when the storage chamber is in communication with the inclined conduit;
fig. 10 is a schematic diagram of the internal structure of a seal cavity when a compression spring of the thyristor valve segment jacking device cuts off a connecting wire according to an embodiment of the invention.
In the figure: 1. an end plate; 2. a conductive plate; 3. a connecting sleeve; 4. a buffer plate; 5. a limit cooling mechanism; 6. a carbon dioxide storage tank; 7. a thyristor valve block; 31. a compression bar; 32. a fastening nut; 33. a buffer spring; 51. a connection frame; 52. a liquid storage cavity; 53. a storage chamber; 54. a lift tube set; 55. a return tube group; 56. a cooling chamber; 57. an airtight chamber; 58. a diversion cavity; 59. sealing the cavity; 521. a fixing plate; 522. a piston plate; 561. a heat conductive sheet; 571. a piston slide block; 572. an inclined conduit; 573. a round push block; 574. a compression spring; 575. a straight conduit; 581. a flow guiding slide block; 582. a return spring; 583. fixing the magnetic block; 591. a sealing piston; 592. a tension spring; 593. a connecting wire; 594. a multi-hole spray head.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-10, a thyristor valve section jacking device comprises an end plate 1, a thyristor valve group 7 arranged in series, end plates 1 arranged at two ends of the thyristor valve group 7, and further comprises:
the limiting cooling mechanism 5 is arranged on the outer side of the thyristor valve group 7 and is fixedly connected with the end plate 1, and the self-circulation water-cooling heat dissipation by utilizing the working temperature rise can be realized by automatically refluxing after the temperature rise through the layered cavity arranged in the liquid storage cavity 52 below the limiting cooling mechanism 5 and the heated volatilization of the alcohol solution in the liquid storage cavity 52 and the promotion of the cooling liquid to rise and dissipate heat;
the airtight chamber 57 expands air in the airtight chamber 57 when the temperature is too high, pushes the piston slider 571 arranged in the airtight chamber 57 to slide, and communicates the storage chamber 53 arranged at the top of the airtight chamber 57 with the internal liquid path of the limit cooling mechanism 5, so that the temperature of cooling liquid in the limit cooling mechanism 5 is reduced, and the thyristor valve block 7 is subjected to further efficient heat dissipation.
Referring to fig. 1-6, end plate 1 is symmetrically arranged relative to thyristor valve group 7, two groups of conductive plates 2 respectively connected with input and output ends of thyristor valve group 7 are symmetrically arranged on side edges of end plate 1, a plurality of groups of limiting cooling mechanisms 5 which are designed in series are fixedly arranged on outer side walls of thyristor valve group 7, buffer plates 4 are arranged between end plate 1 and thyristor valve group 7 and between limiting cooling mechanisms 5, connecting sleeve 3 is fixedly arranged on side walls of end plate 1, a group of compression rods 31 are sleeved on inner side limiting activity of connecting sleeve 3, buffer springs 33 are connected between inner side ends of compression rods 31 and inner side ends of connecting sleeve 3 through a group of limiting pistons, the other end of the compression bar 31 penetrates through the other group of end plates 1, the contact part of the compression bar 31 and the end plates 1 is in threaded connection, a fastening nut 32 used for fastening is arranged on the outer side wall of the compression bar 31, a carbon dioxide storage tank 6 is fixedly arranged at the top of the end plates 1, a limit cooling mechanism 5 comprises a connecting frame 51, a liquid storage cavity 52 is formed at the connecting position of the bottom side wall of the connecting frame 51, a fixed plate 521 is fixedly arranged at the inner side of the liquid storage cavity 52, a piston plate 522 is movably sleeved at the inner side limit seal of the liquid storage cavity 52, a cooling cavity 56, an airtight cavity 57, a diversion cavity 58 and a sealing cavity 59 are formed at the connecting position of the top side wall of the connecting frame 51, and a storage cavity 53 is formed at the top of the airtight cavity 57;
the liquefied carbon dioxide is stored in the carbon dioxide storage tank 6, and the carbon dioxide storage tank 6 is entirely constructed of a high-temperature and high-pressure resistant material.
Further, a plurality of groups of liquid lifting tube groups 54 are arranged in the connecting frame 51, one end of the liquid lifting tube groups 54 is communicated with the top of the liquid storage cavity 52, the other end of the liquid lifting tube groups 54 is communicated with the upper portion of the cooling cavity 56, a plurality of groups of reflux tube groups 55 are arranged in one side of the connecting frame 51 symmetrical to the liquid lifting tube groups 54, and the bottom ends of the reflux tube groups 55 are communicated with the top of the liquid storage cavity 52.
Referring to fig. 3, a plurality of groups of heat conductive fins 561 are fixedly installed inside the cooling chamber 56, the bottoms of the heat conductive fins 561 are in contact with the bottoms of the cooling chamber 56, the bottoms of the heat conductive fins 561 are provided with slits, and the tops of the heat conductive fins 561 extend to the outside of the cooling chamber 56;
it should be noted that, the gap formed at the bottom of the heat conducting fin 561 may allow the cooling liquid to flow therethrough, and may increase the contact area with the cooling liquid, and the portion of the heat conducting fin 561 extending to the outside of the cooling cavity 56 forms a heat dissipating fin group, so as to increase the heat dissipating area, and the temperature of the cooling liquid in the cooling cavity 56 may be dissipated to the outside through the heat conducting fin 561, so as to achieve the heat dissipating effect on the cooling liquid, the cooling cavity 56 and the connection frame 51.
Further, a guiding slider 581 is movably sleeved in the airtight cavity 57 in a limited and movable sealing manner, the guiding slider 581 is made of a permanent magnet material, a fixed magnetic block 583 which is designed opposite to the magnetic pole of the guiding slider 581 is fixedly installed in the guiding cavity 58, and a reset spring 582 is fixedly installed between the fixed magnetic block 583 and the guiding slider 581.
Further, a hole communicated with the inside of the cooling cavity 56 is formed on one side of the diversion cavity 58 close to the cooling cavity 56, a hole groove communicated with the backflow pipe group 55 is formed on two sides of the diversion cavity 58, a T-shaped flow pipeline is formed in the diversion slider 581, one end of the flow pipeline in the diversion slider 581 faces the cooling cavity 56, and the other two ends face the backflow pipe group 55;
when the hydraulic pressure in the cooling chamber 56 is small, the guide slider 581 is abutted against the inner side wall of the guide chamber 58 under the action of the elastic force of the return spring 582, the pipeline on the side surface of the guide slider 581 is not in contact with the return pipe group 55, so that the cooling liquid in the cooling chamber 56 can be prevented from flowing back to the return pipe group 55, when the liquid level in the cooling chamber 56 is high, the water pressure on the guide slider 581 is large, the guide slider 581 is pushed to move further towards the direction of the fixed magnetic block 583 under the action of the water pressure, the distance between the guide slider 581 and the fixed magnetic block 583 is reduced, the magnetic force is increased, the elastic force of the return spring 582 can be further overcome, the guide slider 581 is close to the fixed magnetic block 583 under the action of the magnetic force of the fixed magnetic block 583, two groups of openings on the side edge of the guide slider 581 are respectively communicated with the return pipe group 55, under the action of gravity and the hydraulic pressure, the cooling liquid cooled by the heat conducting fin 561 in the cooling cavity 56 flows back to the inside of the liquid storage cavity 52 through the one-way valve in the reflux pipe group 55, when the cooling liquid circulates in the reflux pipe group 55, the cooling liquid can absorb the heat flowing through the area of the connecting frame 51, the water cooling heat dissipation effect is realized until the cooling liquid flows back to the inside of the liquid storage cavity 52, the cooling and heat dissipation effect can be realized on the whole liquid storage cavity 52 through the cooling liquid with lower temperature of the reflux, the cooling and heat dissipation effect can be further realized on the contact part of the thyristor valve group 7 through the cooling liquid and the alcohol solution in the liquid storage cavity 52, the effect of driving the alcohol solution with lower volatility to volatilize and push the piston plate 522 through the temperature of the thyristor valve group 7 when working is realized, the cooling liquid is pushed through the piston plate 522 to enter the cooling cavity 56 for heat dissipation through the liquid lifting pipe group 54, and continuously pump the liquid to the cooling cavity 56 to a higher liquid level to enable the cooling cavity 56 to push the flow guide slide block 581 to flow back through the backflow pipe group 55 through the hydraulic pressure, and the cooling and heat dissipation effects of the connecting frame 51, the liquid storage cavity 52 and the thyristor valve group 7 are achieved, so that the water cooling and heat dissipation effects of automatic circulation generated by temperature increase during operation of the thyristor valve group 7 are achieved.
Further, a set of piston sliding blocks 571 are movably sleeved in the inner limit seal of the airtight cavity 57, a set of straight guide pipes 575 are movably sleeved between the airtight cavity 57 and the seal cavity 59 in a limit mode, a round push block 573 is arranged at one end of each straight guide pipe 575 extending to the inside of the airtight cavity 57, a compression spring 574 is arranged between the round push block 573 and the inner side wall of the airtight cavity 57, and a cutter head is arranged at one end of each straight guide pipe 575 extending to the inside of the seal cavity 59.
Further, the airtight chamber 57 is provided with an inclined duct 572 communicating with the inside of the cooling chamber 56 and the bottom of the airtight chamber 57, and the top of the airtight chamber 57 is provided with an opening corresponding to the bottom opening of the storage chamber 53.
It should be noted that, the top opening of the airtight cavity 57 corresponds to the top opening of the inclined conduit 572 along the vertical direction, and a vertically arranged pipeline is opened inside the piston slider 571.
Further, the inside of the sealing cavity 59 is kept in a communicated state with the inside of the carbon dioxide storage tank 6 through a group of pipelines, the inside of the sealing cavity 59 is of a T-shaped design, a sealing piston 591 is movably sleeved at the limit position of the inner side wall of the lower half of the sealing cavity 59, a group of extension springs 592 are connected between the top of the sealing piston 591 and the top of the inner side of the sealing cavity 59, a group of connecting wires 593 are connected between the bottom of the sealing piston 591 and the bottom of the inner side of the sealing cavity 59, and a porous spray head 594 communicated with the inside of the sealing cavity 59 is arranged at the bottom of the sealing cavity 59;
the extension spring 592 is in a stretched state, the connection line 593 is in a stretched state, and a sealing state is maintained between the sealing piston 591 and the inner side wall of the sealing chamber 59.
The working principle of the thyristor valve section jacking device is as follows:
the thyristor valve group 7 arranged in series is arranged between the two groups of end plates 1, the compression bar 31 drives the end plates 1 to move towards the other group of end plates 1 by simultaneously rotating the fastening nuts 32, the thyristor valve group 7 between the two groups of end plates 1 can be buffered by compressing the buffer springs 33 and extruding the buffer plates 4 while tightening, the buffering and protecting effects can be achieved while the fastening is maintained, the damage to the surface caused by overlarge stress is avoided, and the limiting effect on the thyristor valve group 7 can be achieved by the fixed connection of the limiting cooling mechanism 5 and the thyristor valve group 7 and the fixed connection of the limiting cooling mechanism 5 and the end plates 1, so that the limiting effect on the fixation of the thyristor valve group 7 is effectively improved;
in the operation process of the thyristor valve group 7, particularly in the environment with higher air temperature, the self heat dissipation capacity of the thyristor valve group 7 is poor due to higher ambient temperature and the temperature of a cooling medium, so that the junction temperature of the thyristor valve group 7 is easily overhigh, at the moment, heat is transferred to the connecting frame 51 through the connecting frame 51 which is kept in contact with the thyristor valve group 7, the heat dissipation effect is achieved through the contact of a plurality of groups of connecting frames 51 and external air, simultaneously, when the heat is transferred to the liquid storage cavity 52, as the liquid storage cavity 52 is divided into an upper cavity and a lower cavity through the piston plate 522, the alcohol in the lower cavity has high volatility, when the temperature of the thyristor valve group 7 is higher, the solution is heated and volatilized to expand, the piston plate 522 is pushed to rise, the cooling liquid in the cavity above the liquid storage cavity 52 is pushed to the inside the cooling cavity 56 through the liquid lifting pipe group 54, and in the process, the liquid flowing in the lift tube group 54 can absorb heat to the connecting frame 51 along the way due to the fact that the specific heat capacity of cooling is larger than that of the metal material of the connecting frame 51, after the cooling liquid enters the cooling cavity 56, the heat conducting fin 561 extends to the outer side of the cooling cavity 56 to form a heat radiating fin group, the heat radiating area is increased, the temperature of the cooling liquid in the cooling cavity 56 can be dispersed to the outside through the heat conducting fin 561, the heat radiating effect to the cooling liquid, the cooling cavity 56 and the connecting frame 51 is achieved, when the liquid level in the cooling cavity 56 is higher, the water pressure born by the flow guiding slide 581 is larger, the flow guiding slide 581 is pushed to move further towards the direction of the fixed magnetic block 583 under the action of the water pressure, the distance between the flow guiding slide 581 and the fixed magnetic block 583 is reduced, the magnetic force is increased, the elastic force of the reset spring 582 can be further overcome, the flow guiding slide 581 is enabled to be close to the fixed magnetic block 583 under the action of the magnetic force of the fixed magnetic block 583, the two groups of openings on the side edge of the flow guide sliding block 581 are respectively communicated with the backflow pipe group 55, under the action of gravity and hydraulic pressure, the cooling liquid cooled by the heat conducting fin 561 in the cooling cavity 56 flows back to the inside of the liquid storage cavity 52 through the one-way valve in the backflow pipe group 55, when the cooling liquid circulates in the backflow pipe group 55, the cooling liquid can absorb heat in the area of the flowing connection frame 51, the water cooling heat dissipation effect is achieved until the cooling liquid flows back to the inside of the liquid storage cavity 52, the cooling and heat dissipation effects can be achieved on the whole liquid storage cavity 52 through the cooling liquid with lower temperature after flowing back, and the cooling and heat dissipation effects can be achieved on the contact part of the thyristor valve group 7 through the cooling liquid and the alcohol solution in the liquid storage cavity 52 through the whole temperature reduction of the liquid storage cavity 52; the effects of driving alcohol solution with lower volatility to volatilize and push the piston plate 522 through the temperature of the thyristor valve group 7 during operation, pushing cooling liquid through the piston plate 522 to enter the cooling cavity 56 through the liquid lifting pipe group 54 to dissipate heat, continuously pumping liquid to the cooling cavity 56 to a higher liquid level during continuous temperature rising, enabling the cooling cavity 56 to flow back through the reflux pipe group 55 through hydraulic pushing the flow guiding slide block 581, and cooling and heat dissipation of the connecting frame 51, the liquid storage cavity 52 and the thyristor valve group 7 are realized, and the effect of automatically circulating water cooling and heat dissipation is realized through temperature rising during operation by utilizing the thyristor valve group 7;
when the working temperature of the thyristor valve group 7 is too high, air between the airtight cavity 57 and the piston slider 571 is heated and expanded to push the piston slider 571 to slide until the piston slider 571 contacts the inclined guide tube 572, at the moment, the inner channel of the piston slider 571 contacts the bottom opening of the storage cavity 53 and the top opening of the inclined guide tube 572, potassium nitrate powder contained in the storage cavity 53 enters the cooling cavity 56 through the piston slider 571 and the inclined guide tube 572 to be dissolved with cooling water solution in the cooling cavity 56, during the dissolving process of the potassium nitrate and the water solution, a large amount of heat can be absorbed during the dissolving process through the instability of the combination of the potassium nitrate and water molecules, so that the temperature of cooling liquid in the cooling cavity 56 is reduced, and meanwhile, the heat of the connecting frame 51 contacting the cooling cavity 56 can be absorbed, the heat dissipation and cooling effect on the thyristor valve group 7 is realized, and meanwhile, the temperature of cooling liquid in the cooling cavity 56 is reduced, however, the temperature inside the liquid storage cavity 52 is affected less, the cooling liquid inside the liquid storage cavity 52 is continuously pumped into the cooling cavity 56 through the volatilization expansion of the alcohol until the liquid level is too high and flows back through the backflow pipe group 55, the cooled cooling liquid flows inside the backflow pipe group 55 in the backflow process of the backflow pipe group 55, the temperature is low, the high-efficiency heat absorption and cooling effect can be achieved on the connecting frame 51 of the flowing area until the cooling liquid flows back to the liquid storage cavity 52, the temperature of the cooling liquid inside the liquid storage cavity 52 can be obviously reduced, the temperature of the liquid storage cavity 52 and the connecting frame 51 can be further reduced, the aim that when the working temperature of the thyristor valve group 7 is too high, the movement of the piston sliding block 571 is pushed through the gas expansion, so that the potassium nitrate solution inside the storage cavity 53 and the cooling liquid inside the cooling cavity 56 are mixed to absorb a large amount of heat is achieved, and the self-circulation water cooling of the limiting cooling mechanism 5 is achieved, the connecting frame 51 and the liquid storage cavity 52 are further subjected to efficient heat absorption and cooling effects, the thyristor valve block 7 is further subjected to cooling effects, the increase of the activity of electrons and holes in the thyristor valve block 7 caused by overhigh temperature of the thyristor valve block 7 is avoided, the charge capturing capacity of PN junctions is increased, and further the reverse leakage current of the PN junctions and the static loss of the thyristor valve block 7 are increased, so that when a positive voltage is applied to a control electrode, the problem that the leakage current is increased along with the energy of released charges to replace molecular thermal movement is caused, and the safe and stable operation of the thyristor valve block 7 is ensured;
it should be noted that, when the thyristor valve group 7 suffers from electric leakage, degradation of parameter performance due to long service time, and voltage failure caused by line problem, the thyristor valve group 7 is easily burnt out, even an open fire combustion condition occurs, at this time, the open fire causes rapid temperature rise of the thyristor valve group 7 and the connection frame 51, which causes continuous expansion of air between the piston slider 571 and the airtight cavity 57, and at this time, the expansion coefficient and the pushing-off are large enough to push the circular push block 573 to compress the compression spring 574, and simultaneously, with movement of the straight conduit 575, the cutter head at the end of the straight conduit 575 cuts the connection line 593, referring to fig. 10, the connection line 593 breaks, the sealing piston 591 breaks away from sealing engagement with the side wall below the sealing cavity 59 under the elastic force of the extension spring 592, enter the inboard top of sealed chamber 59, the inside carbon dioxide of carbon dioxide storage tank 6 at this moment gets into the inside of porous shower nozzle 594 through the edge of sealed piston 591 and spouts towards the direction of thyristor valves 7, through the blowout of carbon dioxide, cool down and the effect of isolated oxygen to thyristor valves 7, avoid thyristor valves 7 to continue burning, prevent the fire to spread, the realization is through the apparent temperature variation of thyristor valves 7 when firing burning, make carbon dioxide storage tank 6 and porous shower nozzle 594 be linked together through the removal of sealed piston 591, and put out a fire the cooling to thyristor valves 7 automatic blowout carbon dioxide, realize realizing automatic fire extinguishing cooling to the firing of thyristor valves 7, prevent the fire to spread simultaneously, the harm of thyristor valves 7 when the spontaneous combustion that the circuit fault leads to has effectively been reduced.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a thyristor valve section roof pressure device, includes end plate (1), thyristor valves (7) of establishing ties setting and sets up end plate (1) at thyristor valves (7) both ends, its characterized in that still includes:
the limiting cooling mechanism (5) is arranged on the outer side of the thyristor valve group (7) and is fixedly connected with the end plate (1), and the self-circulation water-cooling heat dissipation can be realized by automatically refluxing after the temperature rises through a layered cavity arranged in the liquid storage cavity (52) below the limiting cooling mechanism (5) and through the heated volatilization of the alcohol solution in the liquid storage cavity (52) so as to push the cooling liquid to rise and dissipate heat and store at the same time;
the airtight cavity (57) enables air in the airtight cavity (57) to expand when the temperature is too high, the piston sliding block (571) arranged in the airtight cavity (57) is pushed to slide, the storage cavity (53) arranged at the top of the airtight cavity (57) and the internal liquid path of the limit cooling mechanism (5) are communicated, the temperature of cooling liquid in the limit cooling mechanism (5) is reduced, and further efficient heat dissipation is carried out on the thyristor valve group (7).
2. The thyristor valve segment jacking device according to claim 1, wherein the end plate (1) is symmetrically arranged relative to the thyristor valve block (7), two groups of conductive plates (2) which are respectively connected with the input end and the output end of the thyristor valve block (7) are symmetrically arranged on the side edge of the end plate (1), a plurality of groups of limiting cooling mechanisms (5) which are designed in series are fixedly arranged on the outer side wall of the thyristor valve block (7), buffer plates (4) are arranged between the end plate (1) and the thyristor valve block (7) and the limiting cooling mechanisms (5), a connecting sleeve (3) is fixedly arranged on the side wall of the end plate (1), a group of compression rods (31) are movably sleeved on the inner side of the connecting sleeve (3), a buffer spring (33) is connected between the inner side end part of the compression rods (31) and the inner side end part of the connecting sleeve (3) through a group of limiting pistons, the other ends of the compression rods (31) penetrate through the other group of end plates (1), the connection parts of the compression rods (31) and the end plates (1) are connected in a threaded mode, a fastening part of the compression rods (31) is connected, a fastening nut (32) is arranged on the outer side wall of the compression rods (31) and the end plate (31), the end plate (31) is fixedly provided with a fastening nut (1), the liquid storage cavity (52) is formed in the connecting position of the bottom side wall of the connecting frame (51), the fixing plate (521) is fixedly arranged on the inner side of the liquid storage cavity (52), the piston plate (522) is movably sleeved on the inner side of the liquid storage cavity (52) in a limiting and sealing mode, the cooling cavity (56), the airtight cavity (57), the flow guiding cavity (58) and the sealing cavity (59) are formed in the connecting position of the top side wall of the connecting frame (51), and the storage cavity (53) is formed in the top of the airtight cavity (57).
3. The thyristor valve section jacking device according to claim 2, wherein a plurality of groups of liquid lifting pipe groups (54) are formed in the connecting frame (51), one end of each liquid lifting pipe group (54) is communicated with the top of the liquid storage cavity (52), the other end of each liquid lifting pipe group (54) is communicated with the upper portion of the cooling cavity (56), a plurality of groups of backflow pipe groups (55) are formed in one side of the connecting frame (51) symmetrical to the liquid lifting pipe groups (54), and the bottom ends of the backflow pipe groups (55) are communicated with the top of the liquid storage cavity (52).
4. The thyristor valve segment jacking device according to claim 2, wherein a plurality of groups of heat conducting fins (561) are fixedly installed inside the cooling cavity (56), the bottoms of the heat conducting fins (561) are in contact with the bottoms of the cooling cavity (56), gaps are formed in the bottoms of the heat conducting fins (561), and the tops of the heat conducting fins (561) extend to the outside of the cooling cavity (56).
5. The thyristor valve section jacking device according to claim 2, wherein a guide slide block (581) is sleeved in the airtight cavity (57) in a movable limiting mode, the guide slide block (581) is made of permanent magnet materials, a fixed magnetic block (583) which is designed opposite to the guide slide block (581) in magnetic poles is fixedly installed in the guide cavity (58), and a reset spring (582) is fixedly installed between the fixed magnetic block (583) and the guide slide block (581).
6. The thyristor valve section jacking device according to claim 5, wherein a hole communicated with the inside of the cooling cavity (56) is formed in one side, close to the cooling cavity (56), of the flow guiding cavity (58), hole grooves communicated with the backflow pipe group (55) are formed in two sides of the flow guiding cavity (58), a T-shaped flow pipeline is formed in the inner portion of the flow guiding sliding block (581), one end of the flow guiding pipeline in the flow guiding sliding block (581) faces the cooling cavity (56), and the other two ends face the direction of the backflow pipe group (55).
7. The thyristor valve section jacking device according to claim 2, wherein a group of piston sliding blocks (571) are movably sleeved in the inner limit seal of the airtight cavity (57), a group of straight guide pipes (575) are movably sleeved between the airtight cavity (57) and the seal cavity (59), one end of each straight guide pipe (575) extending to the inside of the airtight cavity (57) is provided with a circular push block (573), a compression spring (574) is arranged between the circular push blocks (573) and the inner side wall of the airtight cavity (57), and one end of each straight guide pipe (575) extending to the inside of the seal cavity (59) is provided with a cutter head.
8. The thyristor valve segment jacking device according to claim 7, wherein the airtight chamber (57) is provided with an inclined conduit (572) communicating with the inside of the cooling chamber (56) and the bottom of the airtight chamber (57), and the top of the airtight chamber (57) is provided with an opening corresponding to the bottom opening of the storage chamber (53).
9. The thyristor valve segment pressing apparatus according to claim 8, wherein the top opening of the airtight chamber (57) corresponds to the top opening of the inclined duct (572) in a vertical direction, and a vertically disposed pipe is provided inside the piston slider (571).
10. The thyristor valve section jacking device according to claim 2, wherein the inside of the sealing cavity (59) is kept in a communicated state with the inside of the carbon dioxide storage tank (6) through a group of pipelines, the inside of the sealing cavity (59) is of a T-shaped design, a sealing piston (591) is sleeved in a limiting and sealing mode on the lower half inner side wall of the sealing cavity (59), a group of extension springs (592) are connected between the top of the sealing piston (591) and the inner side top of the sealing cavity (59), a group of connecting wires (593) are connected between the bottom of the sealing piston (591) and the inner side bottom of the sealing cavity (59), and a porous spray head (594) communicated with the inside of the sealing cavity (59) is arranged at the bottom of the sealing cavity (59).
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| CN202311030270.2A CN116995043B (en) | 2023-08-16 | 2023-08-16 | Thyristor valve section jacking device |
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| CN202311030270.2A CN116995043B (en) | 2023-08-16 | 2023-08-16 | Thyristor valve section jacking device |
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| CN102136468A (en) * | 2010-12-16 | 2011-07-27 | 许继集团有限公司 | Thyristor valve section and crimping method thereof |
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| CN110045801A (en) * | 2018-01-17 | 2019-07-23 | 纬创资通股份有限公司 | Coolant liquid supplementary mechanism and cooling recirculation system and electronic equipment with it |
| CN112260457A (en) * | 2020-10-14 | 2021-01-22 | 长沙开湖设备有限公司 | Motor heat dissipation shell with automatically-reflowable cooling liquid |
| CN114865151A (en) * | 2022-06-02 | 2022-08-05 | 南京天齐航空有限公司 | High-heat-dissipation battery pack utilizing aerodynamic energy |
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| CN102510991A (en) * | 2009-09-15 | 2012-06-20 | 瑞典爱立信有限公司 | Heat transfer arrangement and electronic housing comprising a heat transfer arrangement |
| CN102136468A (en) * | 2010-12-16 | 2011-07-27 | 许继集团有限公司 | Thyristor valve section and crimping method thereof |
| CN107818951A (en) * | 2017-10-12 | 2018-03-20 | 南京拓扑瞬电电气科技有限公司 | Band heat management high-voltage pulse thyristor switch device |
| CN110045801A (en) * | 2018-01-17 | 2019-07-23 | 纬创资通股份有限公司 | Coolant liquid supplementary mechanism and cooling recirculation system and electronic equipment with it |
| CN112260457A (en) * | 2020-10-14 | 2021-01-22 | 长沙开湖设备有限公司 | Motor heat dissipation shell with automatically-reflowable cooling liquid |
| CN114865151A (en) * | 2022-06-02 | 2022-08-05 | 南京天齐航空有限公司 | High-heat-dissipation battery pack utilizing aerodynamic energy |
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