Disclosure of Invention
The invention aims to provide a cooling device for a water ring vacuum pump for vacuumizing a condenser of a power station, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a power station condenser is heat sink for evacuation water ring vacuum pump, includes the condenser, its characterized in that: one end of the condenser is connected with a vacuumizing tube in a through mode, one end of the vacuumizing tube is provided with a vacuum pump main body, an air inlet pipe and an air outlet pipe are correspondingly installed on one side of the vacuum pump main body, and a water ring cooling device is arranged inside the vacuum pump main body.
According to the technical scheme, the water ring cooling device comprises a cooling bag, the middle part of one side of the vacuum pump main body is rotatably connected with a pump shaft through a bearing, the outer part of the pump shaft is connected with a cooling liquid outer pipe, the outer wall of the cooling liquid outer pipe is uniformly provided with pump blades, the pump blades are provided with square through holes, and the cooling bag is embedded in the square through hole, one end of the cooling bag is connected with a cooling liquid discharge pipe, the other end of the cooling bag is connected with a cooling liquid inlet pipe, a one-way valve II is arranged on the cooling liquid inlet pipe, the cooling liquid discharge pipe is provided with a one-way valve I, one end of the cooling liquid inlet pipe and one end of the cooling liquid discharge pipe are communicated with the two sides of the cooling liquid outer pipe, the inside of coolant liquid outer tube is provided with flexible body, the both ends through connection of flexible body has the heat transfer inner tube, the both ends of heat transfer inner tube are provided with refrigerant liquid entry and refrigerant liquid export.
According to the technical scheme, one end of the pump shaft is connected with the swing rod, the middle of the swing rod is provided with the elastic expansion part, one end of the swing rod is connected with the balancing weight, the balancing weight is in contact with the flexible pipe body, and one end of the cooling bag is connected with the supply deformation part.
According to the technical scheme, one end of the balancing weight is provided with the extension part, and the extension part is arc-shaped.
According to the technical scheme, the inner wall of the cooling liquid outer pipe is correspondingly hinged with the liquid baffle plate, and one side of the liquid baffle plate is in contact with the flexible pipe body.
According to the technical scheme, a condensate cavity is arranged inside the air inlet pipe, a tension film is arranged at the bottom of the condensate cavity, one side of the tension film is flush with the inner wall of the vacuum pump main body, one end of the condensate cavity is connected with a water ring supply pipe in a penetrating manner, one end of the water ring supply pipe is connected with the inner wall of the vacuum pump main body in a penetrating manner, a baffle is arranged at the pipe orifice of the water ring supply pipe, and the baffle and the tension film are of a matching structure.
According to the technical scheme, the inside of the gas condensation cavity is provided with the plurality of cold guide grooves, the inner walls of the cold guide grooves are obliquely fixed with the cold guide pieces through welding, one ends of the cold guide pieces stretch into the inside of the vacuum pump main body, the bottom of the gas condensation cavity is provided with the vent pipe, and one end of the vent pipe is communicated with the inner wall of the vacuum pump main body.
According to the technical scheme, one end of the pump blade is provided with the elastic traction device, the elastic traction device comprises an eccentric wheel, the middle of the eccentric wheel is connected with the pump shaft, one side of the eccentric wheel is uniformly provided with rotating pins in a circumferential shape, the rotating pins are connected with elastic traction wires, the elastic traction wires are connected with the cooling bag, and the cooling bag is in sliding connection with the pump blade.
According to the technical scheme, a sealing ring is arranged between the cooling liquid outer pipe and the heat exchange inner pipe.
According to the technical scheme, the outer surface of the cooling bag is in a streamline shape.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the water ring cooling device is arranged, so that the water ring can be cooled, the temperature rise phenomenon in the running process is avoided, the contact area of the cooling liquid and the water ring can be adjusted according to the rotating speed of the pump shaft by arranging the cooling bag, the supply deformation part and other components, and the cooling effect is good.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a power station condenser is heat sink for water ring vacuum pump for evacuation, includes condenser 1, its characterized in that: one end of the condenser 1 is connected with a vacuumizing pipe 11 in a through manner, one end of the vacuumizing pipe 11 is provided with a vacuum pump main body 2, one side of the vacuum pump main body 2 is correspondingly provided with an air inlet pipe 21 and an air outlet pipe 22, a water ring cooling device 4 is arranged inside the vacuum pump main body 2 and used for cooling a water ring in the operation process of the vacuum pump main body 2 to prevent the water ring from being overhigh in temperature in the operation process, and the vacuum pump main body 2 is used for vacuumizing the condenser 1 to maintain the vacuum degree in the condenser 1;
as shown in fig. 2-3, the water ring cooling device 4 includes a cooling bag 43, the pump shaft 23 is rotatably connected to the middle portion of one side of the vacuum pump main body 2 through a bearing, the outer portion of the pump shaft 23 is connected with a cooling liquid outer tube 42, the outer wall of the cooling liquid outer tube 42 is uniformly provided with pump blades 24, the pump blades 24 are provided with square through holes, the cooling bag 43 is embedded inside the square through holes, one end of the cooling bag 43 is connected with a cooling liquid discharge tube 44, the other end of the cooling bag 43 is connected with a cooling liquid inlet tube 45, the cooling liquid inlet tube 45 is provided with a check valve II 451, the cooling liquid discharge tube 44 is provided with a check valve I441, one ends of the cooling liquid inlet tube 45 and the cooling liquid discharge tube 44 are communicated with two sides of the cooling liquid outer tube 41, the inner portion of the cooling liquid outer tube 42 is provided with a flexible tube 421, two ends of the flexible tube 421 are communicated with the heat exchange inner tube 41, two ends of the heat exchange inner tube 41 are provided with a refrigerant inlet and a refrigerant outlet, the cooling bag 43 is integrated on the pump blade 24, and is cooled by direct contact of the cooling bag 43 and the water ring, compared with a conventional wall-attached cooling mode, the cooling bag has a large contact area with the water ring, and can generate a relatively uniform cooling effect on the water ring along with convection generated by operation of the water ring, the cooling effect is good, a circulation passage of cooling liquid is from the cooling liquid outer pipe 42 to the cooling liquid inlet pipe 45, then the cooling liquid enters the one-way valve II 451 and flows into the cooling bag 43, then the cooling liquid is discharged from the cooling liquid discharge pipe 44 to form circulation of the cooling water, the cooling water enters the inside of the cooling liquid outer pipe 42 and is cooled through the cooling liquid outer pipe 41, and thus cooling circulation is realized;
as shown in fig. 4, one end of the pump shaft 23 is connected with a swing rod 46, the middle of the swing rod 46 is provided with an elastic expansion part 461, one end of the swing rod 46 is connected with a weight block 47, the weight block 47 is in contact with the flexible pipe 421, one end of the cooling bag 43 is connected with a supply deformation part 431, when the pump shaft 23 operates, the swing rod 46 swings, and the elastic expansion part 461 is stretched due to outward expansion of the inertia weight block 47, at this time, the weight block 47 extends outward and props up the flexible pipe 421, so that the space between the flexible pipe 421 and the cooling liquid outer pipe 42 is reduced, more cooling liquid participates in the cooling circulation of the cooling bag 43, the cooling area is increased, otherwise, the space between the flexible pipe 421 and the cooling liquid outer pipe 42 is reduced, the cooling area is reduced, and the cooling effect can be conveniently adjusted according to the rotating speed;
one end of the counterweight 47 is provided with an extension part 471, the extension part 471 is arc-shaped, and the extension part 471 is used for increasing the contact area between the counterweight 47 and the flexible pipe body 421, so that the deformation effect is increased, and the area change is more obvious;
the inner wall of the cooling liquid outer pipe 42 is correspondingly hinged with a liquid baffle plate 48, one side of the liquid baffle plate 48 is in contact with the flexible pipe body 421, and the liquid baffle plate 48 is used for blocking liquid on two sides, so that the liquid cannot directly enter the cooling liquid inlet pipe 45 from the upper part, and the cooling is better realized;
as shown in fig. 1, a condensate chamber 211 is arranged inside the air inlet pipe 21, a tension film 213 is arranged at the bottom of the condensate chamber 211, one side of the tension film 213 is flush with the inner wall of the vacuum pump main body 2, one end of the condensate chamber 211 is connected with a water ring supply pipe 212 in a through manner, one end of the water ring supply pipe 212 is connected with the inner wall of the vacuum pump main body 2 in a through manner, a baffle is arranged at the nozzle of the water ring supply pipe 212, the baffle and the tension film 213 are in a matched structure, and after condensed water cooled by steam enters the condensate chamber 211, moisture is accumulated inside the condensate chamber, when the amount of the water ring is insufficient due to loss, the pressure felt by the tension film 213 is reduced, so that the baffle is lifted up due to deformation, the condensed water is supplied to the inside of the vacuum pump main body 2 from the water ring supply pipe 212, thereby facilitating the utilization of the condenser 1 and supplying the water ring in real time without an external water ring supply pipeline, and saving space;
the inside of the condensing cavity 211 is provided with a plurality of cooling guide grooves, the inner walls of the cooling guide grooves are obliquely fixed with cooling guide fins by welding, one ends of the cooling guide fins extend into the inside of the vacuum pump main body 2, the bottom of the condensing cavity 211 is provided with vent pipes, one ends of the vent pipes are communicated with the inner wall of the vacuum pump main body 2, when water in the condenser 1 enters the condensing cavity 211, the temperature of a water ring in the vacuum pump main body 2 is transferred to the cooling guide grooves through the cooling guide fins, so that high-temperature steam is cooled, and cooled gas enters the vacuum pump main body 2 from the vent pipes and then is discharged from the gas outlet pipe 22 for vacuum pumping, so that the steam and the water are conveniently separated, the moisture in the steam is collected, and the gas is discharged;
one end of the pump blade 24 is provided with an elastic traction device 3, the elastic traction device 3 comprises an eccentric wheel, the middle part of the eccentric wheel is connected with the pump shaft 23, one side of the eccentric wheel is uniformly provided with rotating pins in a circumferential shape, the rotating pins are connected with elastic traction wires, the elastic traction wires are connected with a cooling bag 43, the cooling bag 43 is in sliding connection with the pump blade 24, when the pump blade 24 starts to run, the eccentric wheel is driven to rotate, the orientation of each rotating pin is unchanged and the eccentric wheel rotates, when the rotating pin moves to the far end, the elastic traction wires can drive the cooling bag 43 to gather to the center of the pump blade 24, when the elastic traction wires at the near end contract and drive the cooling bag 43 to expand outwards, when the contact area of the blade and the water ring is small, the elastic traction wires are used for expanding the contact area of the cooling bag 43 and the water ring, and when the contact area of the blade and the water ring is large, the water ring cooling device is used for reducing the resistance of water and further improving the cooling effect of the water ring;
a sealing ring is arranged between the cooling liquid outer pipe 42 and the heat exchange inner pipe 41, and the sealing ring is used for preventing a cooling medium in the heat exchange inner pipe 41 from flowing out when the heat exchange inner pipe 41 and the cooling liquid outer pipe 42 rotate relatively, so that the sealing property is improved;
the outer surface of the cooling bag 43 is streamline, and the streamline can reduce the resistance of water when the cooling bag 43 and the water ring move relatively, thereby saving energy.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.