CN111271927A - Automatic cooling system of cable - Google Patents
Automatic cooling system of cable Download PDFInfo
- Publication number
- CN111271927A CN111271927A CN202010180153.4A CN202010180153A CN111271927A CN 111271927 A CN111271927 A CN 111271927A CN 202010180153 A CN202010180153 A CN 202010180153A CN 111271927 A CN111271927 A CN 111271927A
- Authority
- CN
- China
- Prior art keywords
- cable
- liquid
- pipe
- cooling
- cooling liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
- H01B7/425—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid the construction being bendable
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The invention discloses an automatic cable cooling system, which comprises a refrigeration host, a circulating pump, a controller and a cable cooling device, wherein the cable cooling device comprises a plurality of cooling liquid pipe groups which are connected in parallel, the cooling liquid pipe groups are fixed on a cable along the circumferential direction of the cable, each cooling liquid pipe group is arranged along the axial direction of the cable, one or more clasps are attached to the cooling liquid pipe groups and used for fixing the cooling liquid pipe groups on the cable, a liquid inlet of at least one cooling liquid pipe group is provided with a first temperature sensor, the liquid outlet is provided with second temperature sensor, and the inlet of coolant liquid nest of tubes passes through the feed liquor pipe and links to each other with the feed liquor mouth of refrigeration host computer, and the liquid outlet of coolant liquid nest of tubes passes through the liquid return pipe and links to each other with the liquid return mouth of refrigeration host computer, is provided with the circulating pump on feed liquor pipe or the liquid return pipe, and refrigeration host computer, circulating pump, first temperature sensor and second temperature sensor respectively with controller communication connection. The invention can realize the rapid cooling of the cable and effectively improve the current-carrying capacity of the cable.
Description
Technical Field
The invention relates to the field of wires and cables, in particular to an automatic cable cooling system.
Background
The electric wire and cable is a wire product for transmitting electric energy and information and realizing electromagnetic energy conversion, and is widely applied to the fields of electric power systems, information transmission systems and the like. When the cable is used for transmitting electric power, a large amount of heat is generated when current flows through the conductor due to the certain resistance of the conductor in the cable, and the heat is usually emitted to the surrounding environment through the insulation protection layer of the cable. If the heat in the cable can not be dissipated for a long time, the current-carrying capacity of the cable is reduced, the aging speed of the cable is accelerated, a line fault occurs, a fire disaster occurs and the like, and the service life and the use safety of the cable are seriously affected.
In some engineering fields or main application occasions of cables of key equipment such as high-temperature boilers, communication equipment rooms, large-scale data centers and the like, the problem of current bearing capacity of the cables is generally solved by increasing the sectional area of a cable conductor, but the method is limited in improvement of current-carrying capacity and not ideal in effect.
At present, adopt natural draft or mechanical draft's mode to cool down the cable in some cable intermediate layer or cable piping lane, but these cooling mode heat dissipation are slow, the radiating effect is not good, and the heat of cable can not in time distribute for the current-carrying capacity of cable receives the restriction.
In view of the problems of poor heat dissipation effect, limited current-carrying capacity of the cable and the like of the cooling method, a cable cooling device capable of effectively reducing the temperature of the cable and improving the current-carrying capacity of the cable is needed.
Disclosure of Invention
In order to solve the problems of slow cooling speed, poor heat dissipation effect, limited cable current-carrying capacity and the like of the existing cable cooling mode, the invention innovatively provides an automatic cable cooling system which is provided with a refrigeration host, a circulating pump, a controller and a cable cooling device, wherein the refrigeration host is driven by the circulating pump to provide circulating cooling liquid for the cable cooling device, the cable cooling device comprises a plurality of cooling liquid pipe groups connected in parallel, the cooling liquid pipe groups are fixed on a cable, the cooling liquid in the cooling liquid pipe exchanges heat with the cable to take away the heat of the cable and cool the cable, the controller controls the running power of the circulating pump by supplying the cooling liquid detected by a first temperature sensor and a second temperature sensor to return temperature difference so as to control the supply flow rate and the flow speed of the cooling liquid, the cooling rate is automatically adjusted according to the heat productivity of the cable, and the cable is rapidly cooled, effectively improve the current-carrying capacity of cable, guarantee that the cable can normally operate safely for a long time.
In order to achieve the technical purpose, the invention discloses an automatic cable cooling system, which comprises a refrigeration host, a circulating pump, a controller and a cable cooling device,
the cable cooling device comprises a plurality of cooling liquid pipe groups which are connected in parallel, the cooling liquid pipe groups are fixed on the cable along the circumferential direction of the cable, each cooling liquid pipe group is arranged along the axial direction of the cable, one or more holding clamps are attached to the cooling liquid pipe groups and used for fixing the cooling liquid pipe groups on the cable, a first temperature sensor is arranged at a liquid inlet of at least one cooling liquid pipe group, a second temperature sensor is arranged at a liquid outlet of at least one cooling liquid pipe group,
the liquid inlet of the cooling liquid pipe group is connected with the liquid supply port of the refrigeration host machine through a liquid supply pipe, the liquid outlet of the cooling liquid pipe group is connected with the liquid return port of the refrigeration host machine through a liquid return pipe, the liquid supply pipe or the liquid return pipe is provided with the circulating pump, the circulating pump is used for driving the cooling liquid provided by the refrigeration host machine to circularly flow,
the refrigeration host, the circulating pump, the first temperature sensor and the second temperature sensor are in communication connection with the controller respectively.
Further, each cooling liquid pipe group comprises one or more cooling liquid pipes connected in series, and the cooling liquid pipes are fixed on the cable through the clasps.
Further, it is hook form or crescent to embrace the card, the inner arc radius and the cable excircle radius of embracing the card match, the inner arc length of embracing the card is greater than the 1/2 outer circumferences of cable.
Further, the cooling liquid pipe is tangent to the inner arc of the clamp.
Furthermore, one or more third temperature sensors are fixed on the outer surface of the cable, the third temperature sensors are arranged along the axial direction of the cable, the third temperature sensors are used for monitoring the temperature of the cable, and the third temperature sensors are in communication connection with the controller.
Further, the refrigeration host comprises a first refrigeration host and a second refrigeration host which are connected in parallel, a liquid supply port of the first refrigeration host and a liquid supply port of the second refrigeration host are both connected with the liquid supply pipe, and a liquid return port of the first refrigeration host and a liquid return port of the second refrigeration host are both connected with the liquid return pipe.
Further, a connecting pipe is connected between the liquid supply pipe and the liquid return pipe, a first electric valve is arranged on the connecting pipe, and the first electric valve is in communication connection with the controller.
Further, the liquid outlet of the refrigeration host is provided with a fourth temperature sensor and a first pressure sensor, the liquid return port of the refrigeration host is provided with a fifth temperature sensor and a second pressure sensor, and the fourth temperature sensor, the fifth temperature sensor, the first pressure sensor and the second pressure sensor are respectively in communication connection with the controller.
Furthermore, a second electric valve is arranged on the liquid return pipe and is in communication connection with the controller.
Furthermore, the plurality of cooling liquid pipes are connected in series through pipe joints, resistance wires are arranged on the inner surfaces of the pipe joints, an anode resistance wire connecting point is arranged at one end of each pipe joint, and a cathode resistance wire connecting point is arranged at the other end of each pipe joint.
The invention has the beneficial effects that:
(1) compared with the prior art, the automatic cable cooling system provided by the invention is provided with the refrigeration host, the circulating pump, the controller and the cable cooling device, the refrigeration host is driven by the circulating pump to provide circulating cooling liquid for the cable cooling device, the cable cooling device comprises a plurality of cooling liquid pipe groups which are connected in parallel, the cooling liquid pipe groups are fixed on the cable, the cooling liquid in the cooling liquid pipe exchanges heat with the cable to take away the heat of the cable, the cable is cooled, the controller controls the running power of the circulating pump through the temperature difference of the cooling liquid supply and return detected by the first temperature sensor and the second temperature sensor so as to control the supply flow and the flow rate of the cooling liquid, according to the cable calorific capacity automatically regulated cooling rate, take away the heat that the cable during operation produced, realize the rapid cooling of cable, effectively improve the current-carrying capacity of cable, guarantee that the cable can normally operate safely for a long time.
(2) The automatic cable cooling system provided by the invention has the advantages that the temperature of the cable is quickly reduced, the current-carrying capacity of the cable is improved, and the efficiency of the cable is improved, so that the cable with a smaller sectional area can be selected when the cable is selected, and the cost is reduced; moreover, the rapid cooling of the cable can reduce the damage of parts such as a cable insulating layer and the like caused by overhigh temperature, and prolong the service life of the cable.
(3) The cable cooling device provided by the invention has a simple structure, and the processing cost is reduced; convenient operation can fix the surface at the cable with coolant liquid pipe fast through embracing the card, practices thrift man-hour.
(4) The liquid supply port and the liquid return port of the refrigeration main machine are respectively provided with the temperature sensor, the refrigeration efficiency of the refrigeration main machine and the liquid supply flow speed and flow of the cooling liquid are adjusted through the detected temperature difference of the supply and the return of the cooling liquid, the cooling efficiency of the cable is improved, and the cable can be ensured to normally and safely operate for a long time. Be equipped with temperature sensor on the cable surface, adjust the confession liquid velocity of flow and the flow of coolant liquid through the cable temperature that detects, with cable temperature control in reasonable scope, avoid because the temperature crosses low dewfall phenomenon that causes the condensation of cable surface excessively, guarantee the normal work efficiency of cable.
Drawings
Fig. 1 is a schematic structural diagram of an automatic cable cooling system.
FIG. 2 is a schematic view of the connection between the coolant pipe and the clamp.
FIG. 3 is a side view of the connection of the coolant tube to the clamp.
Fig. 4 is a schematic structural diagram of the cable cooling device installed on a cable.
Fig. 5 is a schematic structural view of the pipe joint.
In the figure, the position of the upper end of the main shaft,
1. a refrigeration host; 2. a circulation pump; 3. a controller; 4. a cable cooling device; 5. a cable; 6. A liquid supply tube; 7. a liquid return pipe; 8. a connecting pipe; 11. a first refrigeration host; 12. a second refrigeration host; 41. a coolant tube bank; 410. a coolant tube; 411. clamping; 412. a pipe joint; 413. a resistance wire; 61. a first temperature sensor; 62. a second temperature sensor; 63. a third temperature sensor; 64. a fourth temperature sensor; 65. a fifth temperature sensor; 71. a first electrically operated valve; 72. a second electrically operated valve; 81. a first pressure sensor; 82. a second pressure sensor.
Detailed Description
The automatic cable cooling system provided by the invention is explained and explained in detail below with reference to the attached drawings 1-5 in the specification.
Fig. 1 is a schematic structural diagram of an automatic cable cooling system, and as shown in fig. 1, this embodiment specifically discloses an automatic cable cooling system, which includes a refrigeration host 1, a circulation pump 2, a controller 3, and a cable cooling device 4.
As shown in fig. 4, the cable cooling device 4 includes a plurality of cooling liquid pipe groups 41 connected in parallel, the plurality of cooling liquid pipe groups 41 are fixed on the cable 5 along the circumferential direction of the cable 5, the plurality of cooling liquid pipe groups 41 surround the cable 5 to uniformly cool the cable 5 in all directions, each cooling liquid pipe group 41 is arranged along the axial direction of the cable 5, one or more clasps 411 are attached to the cooling liquid pipe group 41, the clasps 411 are used for fixing the cooling liquid pipe group 41 on the cable, preferably, the plurality of clasps 411 are arranged along the axial direction of the cooling liquid pipe group 41, at least one liquid inlet of the cooling liquid pipe group 41 is provided with a first temperature sensor 61, a corresponding liquid outlet of the cooling liquid pipe group 41 is provided with a second temperature sensor 62, the first temperature sensor 61 is used for detecting the temperature of the cooling liquid entering the cooling liquid pipe group 41, i.e. the temperature of the liquid supply of the cooling liquid, the second temperature sensor 62 is used for detecting the temperature of the, namely the temperature of the returned cooling liquid, and the difference between the temperature detected by the first temperature sensor 61 and the temperature detected by the second temperature sensor 62 is the temperature difference of the returned cooling liquid; the inlet of coolant pipe group 41 passes through the feed liquor pipe 6 and links to each other with the feed liquor mouth of refrigeration host computer 1, the liquid outlet of coolant pipe group 41 passes through liquid return pipe 7 and links to each other with the liquid return mouth of refrigeration host computer 1, be provided with circulating pump 2 on feed liquor pipe 6 or the liquid return pipe 7, circulating pump 2 is used for driving the coolant liquid circulation that refrigeration host computer 1 provided and flows in the coolant liquid pipe 410 of coolant pipe group 41 through feed liquor pipe 6, in the process of flowing through a plurality of coolant liquid pipes 410 of coolant pipe group 41, carry out the heat transfer with cable 5, take away the heat that cable 5 work produced, make cable 5 temperature reduce, the coolant liquid temperature rise after the heat transfer, flow out from coolant liquid pipe 410, flow back to in refrigeration host computer 1 through liquid return pipe 7.
Refrigeration host computer 1, circulating pump 2, first temperature sensor 61 and second temperature sensor 62 are connected with controller 3 communication respectively, controller 3 is used for controlling the opening and the refrigeration efficiency of refrigeration host computer 1, the temperature of the coolant liquid that control provided promptly, and controller 3 supplies the operating power that returns the temperature difference to adjust circulating pump 2 according to the coolant liquid that the difference of the coolant liquid confession liquid temperature that first temperature sensor 61 detected and the coolant liquid that second temperature sensor 62 detected is the coolant liquid, and then adjusts the flow and the velocity of coolant liquid, the flow and the velocity of coolant liquid according to the calorific capacity regulation coolant liquid of cable 5 promptly, control cooling rate. When the temperature difference of the cooling liquid supply and return is greater than the preset threshold, the preset threshold is preferably 5 ℃, which indicates that the heat productivity of the cable 5 is large, the controller 3 can increase the refrigeration efficiency of the refrigeration host 1 and reduce the initial temperature of the cooling liquid provided by the refrigeration host 1, and meanwhile, the controller 3 increases the operating power of the circulating pump 2, thereby increasing the flow rate and the flow velocity of the cooling liquid and accelerating the cooling rate.
When the plurality of cooling liquid pipe groups 41 are connected in parallel, liquid inlets of the plurality of cooling liquid pipe groups 41 are connected with the liquid supply pipe 6 through a multi-way pipe, the cooling liquid in the liquid supply pipe 6 is shunted to each cooling liquid pipe group 41 through the multi-way pipe, and the first temperature sensor 61 can be arranged on the multi-way pipe or on the liquid supply pipe 6; similarly, the outlets of the plurality of coolant pipe groups 41 are connected to the liquid return pipe 7 through a multi-way pipe, the coolant flowing out of the coolant pipe groups 41 flows into the liquid return pipe 7 after being converged through the multi-way pipe, and the second temperature sensor 62 may be disposed on the multi-way pipe or on the liquid return pipe 7.
In some embodiments, each cooling liquid pipe set 41 includes one or more cooling liquid pipes 410 connected in series, the number of the cooling liquid pipes 410 in each cooling liquid pipe set 41 is set according to the length of the cable 5 to be cooled, the cooling liquid pipes 410 are fixed on the outer surface of the cable 5 through one or more clasps 411, and the cooling liquid flows in the cooling liquid pipes 410 and exchanges heat with the cable 5 to carry away heat generated by the operation of the cable 5.
As shown in fig. 2, one or more clasps 411 are attached to the coolant pipe 410, the clasps 411 are integrally formed with the coolant pipe 410, the clasps 411 are arranged along the axial direction of the coolant pipe 410, and the clasps 411 are used for fixing the coolant pipe 410 on the outer surface of the cable 5. The holding clamp 411 is in a hook shape or a crescent shape, the inner arc radius of the holding clamp 411 is matched with the outer circle radius of the cable 5, the inner arc radius of the holding clamp 411 is approximately equal to the outer circle radius of the cable 5, the inner arc surface of the holding clamp 411 is just tightly attached to the outer circle surface of the cable 5, and the inner arc length of the holding clamp 411 is larger than the outer circle length of 1/2 of the cable 5. The shape and length of the clasps 411 are configured to facilitate the detachment of the coolant tube 410 from the cable 5, and to stably fix the coolant tube 410 to the cable 5. The diameter of the coolant tube 410 may be set according to the heat dissipation requirements of the cable 5.
Fig. 3 is a side view of the connection relationship between the coolant pipe and the clamp according to some embodiments of the present invention, as shown in fig. 3, the clamp 411 is crescent-shaped, the coolant pipe 410 is fixedly connected to the back of the clamp 411, the coolant pipe 410 is tangent to the center of the inner arc of the clamp 411, and the connection line of the two connection points of the coolant pipe 410 and the outer arc of the clamp 411 coincides with the diameter of the coolant pipe 410. After the cooling liquid pipe 410 is fixed on the cable 5, the cooling liquid circulating in the cooling liquid pipe 410 takes away the heat generated by the cable 5, so as to realize the rapid cooling of the cable 5.
In some embodiments, one or more third temperature sensors 63 are fixed on the outer surface of the cable 5, a plurality of third temperature sensors 63 are arranged along the axial direction of the cable 5, and are preferably fixed near the cooling liquid pipe 410, the third temperature sensors 63 are used for monitoring the temperature of the cable 5, the third temperature sensors 63 are connected with the controller 3 in a communication manner, and the controller 3 can also adjust the operation power of the circulating pump 2 according to the temperature of the cable 5 detected by the third temperature sensors 63, so as to control the flow rate and the flow speed of the cooling liquid, and control the cooling rate of the cable 5. When the surface temperature of the cable 5 detected by the third temperature sensor 63 is higher than the first temperature threshold, the controller 3 can control the running power of the circulating pump 2 to be increased, the flow and the flow speed of the cooling liquid to be increased, and the rapid cooling is realized; when the surface temperature of the cable 5 detected by the third temperature sensor 63 is lower than the second temperature threshold, the controller 3 can control to reduce the operation power of the circulating pump 2, reduce the flow rate and the flow velocity of the cooling liquid, and stop the circulation of the cooling liquid if necessary, thereby avoiding the condensation phenomenon of the condensation on the outer surface of the cable 5 caused by too low temperature. Through the detection of the third temperature sensor 63 and the control of the controller 3, the temperature of the cable 5 is accurately controlled within a reasonable range.
Since the cable load temperature is related to the model of the cable, the first temperature threshold and the second temperature threshold are set according to the model of the cable. If the normal working temperature of the cable is 30-50 ℃, the first temperature threshold is set to be 50 ℃, and the second temperature threshold is set to be 30 ℃.
In some embodiments, the refrigeration main unit 1 includes a first refrigeration main unit 11 and a second refrigeration main unit 12 connected in parallel, a liquid supply port of the first refrigeration main unit 11 and a liquid supply port of the second refrigeration main unit 12 are both connected to the liquid supply pipe 6, that is, the first refrigeration main unit 11 and the second refrigeration main unit 12 are connected to the liquid supply pipe 6 through a three-way pipe, a liquid return port of the first refrigeration main unit 11 and a liquid return port of the second refrigeration main unit are both connected to the liquid return pipe 7, that is, the first refrigeration main unit 11 and the second refrigeration main unit 12 are connected to the liquid return pipe 7 through a three-way pipe. When the first refrigeration host 11 is adopted to provide cooling liquid, the requirement for cooling the cable 5 within the set time cannot be met, the second refrigeration host 12 is additionally arranged, the first refrigeration host 11 and the second refrigeration host 12 are simultaneously started, the first refrigeration host 11 and the second refrigeration host 12 are enabled to simultaneously provide cooling liquid, the liquid supply flow and the flow speed are controlled by the circulating pump 2, and the cooling speed of the cable 5 is accelerated.
In some embodiments, as shown in fig. 1, a connection pipe 8 is connected between the liquid supply pipe 6 and the liquid return pipe 7, a first electric valve 71 is disposed on the connection pipe 8, and the first electric valve 71 is connected to the controller 3 in communication. The connection pipe 8 makes the cooling liquid circulation loop generate a branch connected in parallel with the cooling liquid pipe group 41, and the controller 3 adjusts the circulation flow rate of the cooling liquid by adjusting the opening ratio of the first electric valve 71, and further controls the temperature reduction rate of the cable.
The liquid outlet of the refrigeration host 1 is provided with a fourth temperature sensor 64 and a first pressure sensor 81, the fourth temperature sensor 64 and the first pressure sensor 81 are preferably arranged on the liquid supply pipe 6 and close to the liquid outlet of the refrigeration host 1, the liquid return port of the refrigeration host 1 is provided with a fifth temperature sensor 65 and a second pressure sensor 82, the fifth temperature sensor 65 and the second pressure sensor 82 are preferably arranged on the liquid return pipe 7 and close to the liquid return port of the refrigeration host 1, and the fourth temperature sensor 64, the fifth temperature sensor 65, the first pressure sensor 81 and the second pressure sensor 82 are respectively in communication connection with the controller 3. The fourth temperature sensor 64 is used for detecting the temperature of the cooling liquid provided by the refrigeration host 1, the fifth temperature sensor 65 is used for detecting the temperature of the cooling liquid flowing back to the refrigeration host 1 after heat exchange, through the temperature difference between the temperature of the cooling liquid and the temperature of the cooling liquid, the running power of the circulating pump 2 can be further adjusted through the controller 3, when the temperature difference detected by the fourth temperature sensor 64 and the fifth temperature sensor 65 is large, the controller 3 controls the refrigeration efficiency of the refrigeration host 1 to be improved, the running power of the circulating pump 2 to be increased, and the liquid supply flow and the flow rate of the cooling liquid to be improved. The first pressure sensor 81 and the second pressure sensor 82 monitor the pressure difference on the circulation loop in real time to ensure the normal operation of the cooling liquid circulation loop.
The liquid return pipe 7 is provided with a second electric valve 72, the second electric valve 72 is in communication connection with the controller 3, and the controller 3 adjusts the circulating flow and the flow rate of the cooling liquid by adjusting the opening proportion of the second electric valve 72, so as to adjust the cooling speed of the cable 5.
The plurality of cooling liquid pipes 410 are connected in series through a pipe joint 412, as shown in fig. 5, a resistance wire 413 is provided on an inner surface of the pipe joint 412, a positive resistance wire connection point is provided at one end of the pipe joint 412, and a negative resistance wire connection point is provided at the other end of the pipe joint 412. After the two cooling liquid pipes 410 penetrate through the pipe joint 412, the two cooling liquid pipes are respectively connected with the positive resistance wire connection point and the negative resistance wire connection point through the hot melting device, and the resistance wires 413 are heated, so that the contact surfaces of the cooling liquid pipes 410 and the pipe joint 412 are softened and then are effectively butted into a whole, good sealing performance is guaranteed, and liquid leakage is avoided. The cooling liquid pipe 410 is preferably a plastic hose made of PE (polyethylene) having good flexibility and heat dissipation, and the clasping means 411 is also made of PE (polyethylene) having good heat dissipation, and is integrally formed with the cooling liquid pipe. The thermal conductivity of the clasping clamp 411 and the cooling liquid pipe 410 is good, the clasping clamp is in contact with the cable, heat generated by the operation of the cable is transferred to cooling liquid in the cooling liquid pipe, and the cooling liquid flowing circularly absorbs the heat and takes away the heat.
As shown in fig. 1, the working process of the automatic cable cooling system of this embodiment is as follows: the cable cooling device 4 comprises two cooling liquid pipe groups 41 connected in parallel, the two cooling liquid pipe groups 41 are symmetrically arranged, each cooling liquid pipe group 41 is formed by connecting a plurality of cooling liquid pipes in series, liquid inlets of the two cooling liquid pipe groups 41 are respectively provided with a first temperature sensor 61, liquid outlets of the two cooling liquid pipe groups 41 are respectively provided with a second temperature sensor 62, a plurality of third temperature sensors 63 are fixed near the cooling liquid pipe 410 in the axial direction of the cable 5, the cooling liquid pipe 410 is fixed on the outer surface of the cable 5 through a holding clamp 411, the liquid inlets of the two cooling liquid pipe groups 41 are connected with the liquid supply pipe 6 through a three-way pipe, the other end of the liquid supply pipe 6 is connected with the first cooling host 11 and the second cooling host 12 connected in parallel through a three-way pipe, the liquid outlets of the two cooling liquid pipe groups 41 are connected with the liquid return pipe 7 through a three-way pipe, and the other end of the liquid return pipe 7; the cooling liquid provided by the first refrigeration main unit 11 and the second refrigeration main unit 12 flows together to the liquid supply pipe 6, and then is divided into two cooling liquid pipe groups 41 after passing through the liquid supply pipe 6, after flowing in the cooling liquid pipe 410 and exchanging heat with the cable 5, the cooling liquid with increased temperature flows out of the cooling liquid pipe and flows together to the liquid return pipe 7, and flows back to the first refrigeration main unit 11 and the second refrigeration main unit 12 through the liquid return pipe 7, and the direction of the arrows in the figure is the flowing direction of the cooling liquid. The fourth temperature sensor 64 and the first pressure sensor 81 are arranged on the liquid supply pipe 6 close to the first refrigeration host 11 and the second refrigeration host 12, the fifth temperature sensor 65 and the second pressure sensor 82 are arranged on the liquid return pipe 7 close to the first refrigeration host 11 and the second refrigeration host 12, the connecting pipe 8 is further arranged between the liquid supply pipe 6 and the liquid return pipe 7 to form a circulation branch, the first electric valve 71 is arranged on the connecting pipe 8, a part of cooling liquid circulates through the circulation branch formed by the connecting pipe 8 on the circulation loop, the flow speed and the flow of the cooling liquid are adjusted, and the cooling rate of the cable 5 is conveniently controlled. The controller 3 supplies the temperature difference according to the coolant that first temperature sensor 61 and second temperature sensor 62 detected, the refrigeration efficiency of first refrigeration host computer 11 and second refrigeration host computer 12 is adjusted to the difference in temperature that fourth temperature sensor 64 and fifth temperature sensor 65 detected, the operating power of circulating pump 2, the proportion of opening of the first motorised valve 71 of motorised valve and second motorised valve 72, adjust the coolant liquid initial temperature, the circulation flow and the velocity of flow of coolant liquid, realize cable 5 rapid cooling, control circulating pump 2's operating power or open and stop according to the cable 5 surface temperature that third temperature sensor 63 detected in real time simultaneously, guarantee cable 5 accurate control of cable 5 temperature in reasonable within range when cable 5 rapid cooling, guarantee that cable 5 can normally run safely for a long time.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides an automatic cooling system of cable which characterized in that: the cable automatic cooling system comprises a refrigeration host (1), a circulating pump (2), a controller (3) and a cable cooling device (4),
the cable cooling device (4) comprises a plurality of cooling liquid pipe groups (41) which are connected in parallel, the cooling liquid pipe groups (41) are circumferentially fixed on the cable (5) along the cable (5), each cooling liquid pipe group (41) is axially arranged along the cable (5), one or more holding clamps (411) are attached to each cooling liquid pipe group (41), each holding clamp (411) is used for fixing the cooling liquid pipe group (41) on the cable (5), a first temperature sensor (61) is arranged at a liquid inlet of at least one cooling liquid pipe group (41), a second temperature sensor (62) is arranged at a liquid outlet of at least one cooling liquid pipe group (41),
the liquid inlet of the cooling liquid pipe group (41) is connected with the liquid supply port of the refrigeration host (1) through a liquid supply pipe (6), the liquid outlet of the cooling liquid pipe group (41) is connected with the liquid return port of the refrigeration host (1) through a liquid return pipe (7), the circulating pump (2) is arranged on the liquid supply pipe (6) or the liquid return pipe (7), the circulating pump (2) is used for driving the cooling liquid provided by the refrigeration host (1) to circularly flow,
the refrigeration host (1), the circulating pump (2), the first temperature sensor (61) and the second temperature sensor (62) are in communication connection with the controller (3) respectively.
2. The automatic cable cooling system of claim 1, wherein: each cooling liquid pipe group (41) comprises one or more cooling liquid pipes (410) connected in series, and the cooling liquid pipes (410) are fixed on the cable (5) through the clasps (411).
3. The automatic cable cooling system of claim 2, wherein: embrace card (411) and be hook form or crescent, the inner arc radius of embracing card (411) matches with cable (5) excircle radius, the inner arc length of embracing card (411) is greater than the 1/2 outer circumferential length of cable (5).
4. The automatic cable cooling system of claim 3, wherein: the cooling liquid pipe (410) is tangent to the inner arc of the clamp (411).
5. The automatic cable cooling system of claim 1, wherein: one or more third temperature sensors (63) are fixed on the outer surface of the cable (5), the third temperature sensors (63) are arranged along the axial direction of the cable (5), the third temperature sensors (63) are used for monitoring the temperature of the cable (5), and the third temperature sensors (63) are in communication connection with the controller (3).
6. The automatic cable cooling system of claim 1, wherein: refrigeration host computer (1) is including parallelly connected first refrigeration host computer (11) and second refrigeration host computer (12), the confession liquid mouth of first refrigeration host computer (11) and the confession liquid mouth of second refrigeration host computer (12) all with feed pipe (6) link to each other, the liquid return mouth of first refrigeration host computer (11) and the liquid return mouth of the refrigeration main part of second all with liquid return pipe (7) link to each other.
7. The automatic cable cooling system according to claim 1 or 6, wherein: be connected with connecting pipe (8) between feed pipe (6) and liquid return pipe (7), be equipped with first motorised valve (71) on connecting pipe (8), first motorised valve (71) with controller (3) communication connection.
8. The automatic cable cooling system according to claim 1 or 6, wherein: the liquid outlet of refrigeration host computer (1) is equipped with fourth temperature sensor (64) and first pressure sensor (81), the liquid return mouth of refrigeration host computer (1) is equipped with fifth temperature sensor (65) and second pressure sensor (82), fourth temperature sensor (64), fifth temperature sensor (65), first pressure sensor (81) and second pressure sensor (82) respectively with controller (3) communication connection.
9. The automatic cable cooling system according to claim 1 or 6, wherein: and a second electric valve (72) is arranged on the liquid return pipe (7), and the second electric valve (72) is in communication connection with the controller (3).
10. The automatic cable cooling system of claim 1, wherein: the cooling liquid pipes (410) are connected in series through pipe joints (412), resistance wires (413) are arranged on the inner surfaces of the pipe joints (412), a positive resistance wire connecting point is arranged at one end of each pipe joint (412), and a negative resistance wire connecting point is arranged at the other end of each pipe joint (412).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180153.4A CN111271927A (en) | 2020-03-16 | 2020-03-16 | Automatic cooling system of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180153.4A CN111271927A (en) | 2020-03-16 | 2020-03-16 | Automatic cooling system of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271927A true CN111271927A (en) | 2020-06-12 |
Family
ID=70997861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010180153.4A Pending CN111271927A (en) | 2020-03-16 | 2020-03-16 | Automatic cooling system of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234571A (en) * | 2020-08-13 | 2021-01-15 | 国网浙江省电力有限公司电力科学研究院 | Forced cooling system and method for dynamically improving current-carrying capacity of high-voltage cable laid in calandria |
| CN112402840A (en) * | 2020-11-13 | 2021-02-26 | 重庆金康动力新能源有限公司 | Fire extinguishing control method for battery pack |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393652A (en) * | 2001-06-29 | 2003-01-29 | 天津市河西区平江电热电器厂 | Electrothermal fusion welding and sealing of plastic pipe jointer and its technology |
| CN101495822A (en) * | 2006-07-10 | 2009-07-29 | 埃地沃兹真空系统有限公司 | Method for controlling temperature |
| CN103262179A (en) * | 2011-02-25 | 2013-08-21 | 株式会社前川制作所 | Superconducting cable cooling system |
| CN206098029U (en) * | 2016-11-01 | 2017-04-12 | 上海电力设计院有限公司 | A spiral flat water -cooled tube for power cable |
| CN106642855A (en) * | 2016-11-16 | 2017-05-10 | 南京航空航天大学 | Airborne evaporation cycle refrigeration comprehensive heat management system and method and application thereof |
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
| CN110671871A (en) * | 2019-10-27 | 2020-01-10 | 刘易铭 | Refrigeration heat exchange pipeline assembly with defrosting function and refrigerant conveying pipe |
-
2020
- 2020-03-16 CN CN202010180153.4A patent/CN111271927A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393652A (en) * | 2001-06-29 | 2003-01-29 | 天津市河西区平江电热电器厂 | Electrothermal fusion welding and sealing of plastic pipe jointer and its technology |
| CN101495822A (en) * | 2006-07-10 | 2009-07-29 | 埃地沃兹真空系统有限公司 | Method for controlling temperature |
| CN103262179A (en) * | 2011-02-25 | 2013-08-21 | 株式会社前川制作所 | Superconducting cable cooling system |
| CN206098029U (en) * | 2016-11-01 | 2017-04-12 | 上海电力设计院有限公司 | A spiral flat water -cooled tube for power cable |
| CN106642855A (en) * | 2016-11-16 | 2017-05-10 | 南京航空航天大学 | Airborne evaporation cycle refrigeration comprehensive heat management system and method and application thereof |
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
| CN110671871A (en) * | 2019-10-27 | 2020-01-10 | 刘易铭 | Refrigeration heat exchange pipeline assembly with defrosting function and refrigerant conveying pipe |
Non-Patent Citations (1)
| Title |
|---|
| 李金川: "《空调运行管理手册 原理、结构、安装、维修》", 30 April 2000, 上海交通大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234571A (en) * | 2020-08-13 | 2021-01-15 | 国网浙江省电力有限公司电力科学研究院 | Forced cooling system and method for dynamically improving current-carrying capacity of high-voltage cable laid in calandria |
| CN112402840A (en) * | 2020-11-13 | 2021-02-26 | 重庆金康动力新能源有限公司 | Fire extinguishing control method for battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210410336A1 (en) | Heat dissipation method, heat dissipation apparatus, and cabinet | |
| WO2023142545A1 (en) | Liquid cooling system and battery pack | |
| CN111271927A (en) | Automatic cooling system of cable | |
| CN109756058B (en) | Integrated motor electric control system | |
| CN114261255A (en) | Thermal management system of vehicle and excavator | |
| CN217009340U (en) | Energy storage container | |
| CN117832698A (en) | Distributed liquid cooling energy storage cabinet capable of being installed rapidly | |
| CN211265087U (en) | Cable cooling device and cooling system | |
| WO2024037232A1 (en) | Charging terminal | |
| CN219082000U (en) | Hydraulic oil tank with cooling function | |
| CN220021264U (en) | Liquid cooling plate | |
| CN209845599U (en) | Cooling device and server cabinet system | |
| CN111491482B (en) | Cooling device, server cabinet system and fault processing method | |
| CN109473697B (en) | Cooling circulation system of fuel cell | |
| CN217956075U (en) | Conductive medium and liquid cooling control system for conductive medium | |
| CN211265088U (en) | Self-cooling cable and cable self-cooling system | |
| CN212625680U (en) | Fuel cell cooling system | |
| CN212620153U (en) | Rapid cooling system in furnace | |
| CN218731247U (en) | Battery module | |
| CN209246486U (en) | A kind of energy saving circulating system of cooling water | |
| CN216288644U (en) | Battery module cooling system | |
| CN219981417U (en) | Automatic temperature-control heat radiator | |
| CN218524364U (en) | Heat exchange system and air conditioner | |
| CN221763947U (en) | Adjustable cooling water tank | |
| CN216705496U (en) | Wire drawing machine coolant liquid secondary cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200612 |
|
| RJ01 | Rejection of invention patent application after publication |