阅读说明：本技术 一种可使熔盐罐内熔盐温度均衡的熔盐罐 (Molten salt tank capable of balancing molten salt temperature in molten salt tank ) 是由 公志炜 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种可使熔盐罐内熔盐温度均衡的熔盐罐结构,是属于光热发电储热技术领域,包括罐体,所述罐体的中心部从罐顶至罐底固定连接有循环管,循环管的一端设置有循环阀,循环管上均匀设置有若干组浮球阀,浮球阀控制喷口开合,由上至下依次通过法兰固定连接有上部浮球阀、中部浮球阀和底部浮球阀,使熔盐循环时的落差减小,冲击力减小,从而保护罐体,延长熔盐罐的使用寿命,节省了生产成本,同时熔盐经过喷口挡板的阻挡回落罐内时,改变喷口挡板与喷口的距离以及改变喷口挡板安装角度可提高熔盐的混合率,让熔盐的温度更加均衡,罐体的内底部固定连接有涡流盘,熔盐经涡流孔吸入时会使罐内熔盐顺吸入方向旋转,使熔盐温度更加均衡。(The invention discloses a molten salt tank structure capable of balancing the temperature of molten salt in a molten salt tank, which belongs to the technical field of photo-thermal power generation and heat storage and comprises a tank body, wherein the central part of the tank body is fixedly connected with a circulating pipe from the top to the bottom of the tank, one end of the circulating pipe is provided with a circulating valve, a plurality of groups of ball float valves are uniformly arranged on the circulating pipe, the ball float valves control the opening and closing of a nozzle, and an upper ball float valve, a middle ball float valve and a bottom ball float valve are fixedly connected in sequence from top to bottom through flanges, so that the fall during the circulation of the molten salt is reduced, the impact force is reduced, the tank body is protected, the service life of the molten salt tank is prolonged, the production cost is saved, meanwhile, when the molten salt falls back into the tank through the blocking of the nozzle baffle, the mixing rate of the molten salt can be improved by changing the distance between the nozzle baffle and the installation angle of the nozzle, the temperature of the molten salt is more balanced, and an eddy plate is fixedly connected to the inner bottom of the tank body, when the fused salt is sucked through the vortex hole, the fused salt in the tank rotates along the suction direction, so that the temperature of the fused salt is more balanced.)

1. The utility model provides a can make molten salt jar of molten salt jar interior molten salt temperature equilibrium, includes jar body (1), its characterized in that: the central vertical shaft part fixedly connected with circulating pipe (14) of the tank body (1), one end of the circulating pipe (14) is provided with a circulating valve (3), a plurality of groups of nozzles (4) are evenly arranged on the circulating pipe (14), mounting flanges (5) are arranged on the groups of nozzles (4), the groups of nozzles (4) sequentially pass through a flange (5) fixedly connected with an upper float valve (6), a middle float valve (7) and a bottom float valve (8) from top to bottom, and the inner bottom of the tank body (1) is fixedly connected with a vortex disc (9).

2. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: the upper portion ball cock (6) is the same with the mechanism of bottom ball cock (8), all includes support (10), support (10) and opening subassembly (11) sliding connection, middle part ball cock (7) are including opening subassembly (11) and closed subassembly (12), open subassembly (11) and closed subassembly (12) and are cross form fixed mounting.

3. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: the outer wall of the circulating pipe (14) is sleeved with a sealing sleeve (13) in a sliding mode, the inner wall of the sealing sleeve (13) is provided with a clamping groove, the inside of the clamping groove is fixedly connected with a sealing ring, the sealing ring (13) is fixedly connected with the opening assembly (11) in a movable mode, and the flange (5) is fixedly connected with the support (10) through bolts.

4. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: one end of the circulating pipe (14) is provided with a regulating valve (15), one end of the material pipe (14) close to the inner bottom of the tank body (1) is fixedly connected with a molten salt pump (16), and the molten salt pump (16) is connected with a motor (18) through a driving shaft (17) and a sleeve.

5. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: the bottom fixedly connected with sedimentation tank (19) of jar body (1), the bottom fixedly connected with drain valve (20) of sedimentation tank (19).

6. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: the vortex disc (9) is provided with a vortex hole (21), and the vortex disc (9) is provided with a driving shaft hole (22), a single-piece flange (23) and a pump outlet pipe hole (24) and is fixed with the flange (5) of the sealing sleeve (2) for the vortex disc (9).

7. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 2, wherein: the opening assembly (11) and the closing assembly (12) respectively comprise a floating ball (25), a sleeve cylinder (26) and a floating ball connecting rod (27), the floating ball connecting rod (27) of the opening assembly (11) is T-shaped, and the floating ball connecting rod (27) of the closing assembly (12) is inverted V-shaped.

8. The molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to claim 1, wherein: and the outer sides of the groups of nozzles (4) are provided with nozzle baffles (28).

Technical Field

The invention belongs to the technical field of molten salt tanks capable of enabling molten salt temperature in a molten salt tank to be balanced, and particularly relates to a molten salt tank capable of enabling molten salt temperature in the molten salt tank to be balanced.

Background

Molten salt: the molten salt is a molten mass composed of metal cations and non-metal anions, the cations capable of forming the molten salt have more than 80 types, the anions have more than 30 types, and the combined molten salt can reach more than 2400 types. Since the metal cation may have several different valences, the anion may also constitute different complex anions, and in practice the number of molten salts will exceed 2400.

Binary molten salt (60% sodium nitrate + 40% potassium nitrate) is a mature heat storage medium which is proved to be suitable for a photo-thermal power generation system by practical cases, but the binary molten salt cannot be adopted in the field of medium-temperature heat utilization, and the main reason is that the freezing point is too high and is about 207 ℃. For a medium temperature heat utilization system with the working temperature of about 250 ℃, a lower freezing point molten salt product must be adopted.

The ternary molten salt is a mixed nitrate consisting of 53% potassium nitrate, 40% sodium nitrite and 7% sodium nitrate, the melting point is 142 ℃, the gasification point is 500 ℃, and the sodium nitrite can be slowly decomposed above 450 ℃, but the working temperature of a common medium-temperature heat utilization system is within 250-350 ℃.

Disclosure of Invention

The invention aims to solve the technical problem that the existing molten salt tank has poor performance of keeping the temperatures of the inner layer and the outer layer of the molten salt and the temperatures of the upper layer and the lower layer of the molten salt consistent.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a can make balanced molten salt jar of molten salt temperature in molten salt jar, includes a jar body, the perpendicular axial region fixedly connected with circulating pipe in the center of the jar body, the one end of circulating pipe is provided with the circulating valve, evenly is provided with a plurality of groups spout on the circulating pipe, all is provided with mounting flange on a plurality of groups spout, and a plurality of groups spout loops through flange fixedly connected with upper portion ball-cock assembly, middle part ball-cock assembly and bottom ball-cock assembly from top to bottom, the interior bottom fixedly connected with vortex disk of the jar body.

The upper portion ball-cock assembly is the same with the mechanism of bottom ball-cock assembly, all includes the support, support and opening subassembly sliding connection, middle part ball-cock assembly is including opening subassembly and closed subassembly, and opening subassembly and closed subassembly are cross form fixed mounting.

The outer wall of the circulating pipe is slidably sleeved with a sealing sleeve, the inner wall of the sealing sleeve is provided with a clamping groove, the clamping groove is internally and fixedly connected with a sealing ring, the sealing ring is movably and fixedly connected with the opening assembly, and the flange is fixedly connected with the support through a bolt.

One end of the circulating pipe is provided with a regulating valve, one end of the material pipe close to the bottom in the tank body is fixedly connected with a molten salt pump, and the molten salt pump is connected with a motor through a driving shaft and a sleeve.

The bottom fixedly connected with sedimentation tank of the jar body, the bottom fixedly connected with discharge valve of sedimentation tank.

The vortex disc is provided with a vortex hole, and the vortex disc is provided with a driving shaft hole, a single flange and an outlet pipe hole and is fixed with the flange of the sealing sleeve for the vortex disc.

The opening assembly and the closing assembly respectively comprise a floating ball, a sleeve cylinder and a floating ball connecting rod, the floating ball connecting rod of the opening assembly is T-shaped, and the floating ball connecting rod of the closing assembly is inverted V-shaped.

And the outer sides of the groups of nozzles are provided with nozzle baffles.

Compared with the prior art, the invention has the following beneficial effects:

when fused salt in the photo-thermal power generation system flows back to the tank body through the circulating pipe, the tank body is too large, and the impact force of the free falling body of the fused salt can damage the tank body, so that a plurality of groups of nozzles are arranged on the circulating pipe to evenly divide the circulating pipe into a plurality of sections, the upper floating ball valve, the middle floating ball valve and the bottom floating ball valve are fixed by mounting flanges at the upper end and the lower end of the plurality of groups of nozzles, when the liquid level in the tank body is lower than the position of a floating ball of the bottom floating ball valve, the floating ball loses buoyancy, the sealing sleeve is descended, the nozzles open the fused salt to be sprayed out, the fused salt is blocked by the nozzle baffle 28 to fall back into the tank, the impact force of the fused salt is reduced, when the liquid level rises to be close to the bottom nozzles, the floating ball of the middle floating ball valve floats upwards to open the middle floating ball valve, the bottom floating ball valve is closed, when the liquid level continues to rise to be close to the middle nozzles, the middle floating ball valve downwards by the lever action, the sealing sleeve closes the middle floating ball valve at the same time, the float ball of the upper float valve rises to open the upper float valve to form linkage, no matter what position the molten salt of the molten salt liquid level reflows in the tank can fall to the liquid level surface with safe drop, make the molten salt impact force reduce, thereby the protection tank body, prolong the service life of the molten salt tank, the production cost is saved, simultaneously the molten salt is when falling back to the tank through the stopping of spout baffle, adjusting the distance of baffle and spout, adjusting the baffle installation angle, change the baffle shape and can all change form and injection range behind the molten salt blowout in order to improve the mixing ratio of molten salt, let the temperature of molten salt more balanced.

Through the molten salt pump, the vortex dish, the vortex hole, the setting of circulating pipe and jar body, when the molten salt pump with jar internal fused salt pump send to the circulating pipe, the vortex dish reduces with the compartment internal pressure of the jar body, with jar internal fused salt through the vortex hole suction compartment, because the special construction and the overall arrangement of vortex hole, it is rotatory that the internal fused salt of messenger jar is the vortex form, the inner and outer upper and lower layers that makes the fused salt carry out abundant stirring, thereby make the inside and outside upper and lower temperature of whole fused salt all keep unanimous, prevent that low temperature fused salt from leading to the collecting system production undulant because of the temperature is unbalanced, thereby high temperature fused salt leads to the undulant generator that further causes of heat exchanger even steam turbine fluctuation because of the temperature is unbalanced, cause efficiency reduction and equipment to damage.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a vortex disk according to an embodiment of the present invention.

Fig. 3 is a schematic top view of an embodiment of the present invention.

FIG. 4 is a schematic view showing the structure of a circulation tube according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of a closure assembly in accordance with an embodiment of the present invention.

Fig. 6 is a schematic structural view of an opening assembly according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a motion trajectory of the closure assembly of the embodiments of the present invention.

Figure number and name: the device comprises a tank body 1, a sealing sleeve 2, a circulating valve 3, a nozzle 4, a flange 5, an upper float valve 6, a middle float valve 7, a bottom float valve 8, a vortex disc 9, a bracket 10, an opening assembly 11, a closing assembly 12, a sealing ring 13, a circulating pipe 14, a regulating valve 15, a molten salt pump 16, a driving shaft 17, a motor 18, a sedimentation tank 19, a discharge valve 20, a vortex hole 21, a driving shaft hole 22, a single flange 23, a pump outlet pipe hole 24, a floating ball 25, a sleeve pot 26, a floating ball connecting rod 27 and a nozzle baffle 28.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-7, the molten salt tank capable of equalizing the temperature of molten salt in the molten salt tank according to the present invention comprises a tank body 1, wherein a central vertical shaft portion of the tank body 1 is fixedly connected with a circulation pipe 14, one end of the circulation pipe 14 is provided with a circulation valve 3, the circulation pipe 14 is uniformly provided with a plurality of groups of nozzles 4, the plurality of groups of nozzles 4 are provided with mounting flanges 5, the plurality of groups of nozzles 4 are fixedly connected with an upper float valve 6, a middle float valve 7 and a bottom float valve 8 sequentially through the flanges 5 from top to bottom, the upper float valve 6 and the bottom float valve 8 have the same mechanism and respectively comprise a support 10, the support 10 is slidably connected with an opening assembly 11, the middle float valve 7 comprises an opening assembly 11 and a closing assembly 12, the opening assembly 11 and the closing assembly 12 are fixedly installed in a cross shape, a sealing sleeve 13 is slidably sleeved on the outer wall of the circulation pipe 14, the inner wall of the sealing sleeve 13 is provided with a clamping groove, a sealing ring is fixedly connected in the clamping groove, the opening assembly 13 is fixedly connected with the opening assembly 11 in a movable manner, the flange 5 is fixedly connected with the support 10 through a bolt, the opening assembly 11 and the closing assembly 12 both comprise a floating ball 25, a sleeve cylinder 26 and a floating ball connecting rod 27, the floating ball connecting rod 27 of the opening assembly 11 is in a T shape, the floating ball connecting rod 27 of the closing assembly 12 is in an inverted V shape, when the liquid level is lower than a bottom nozzle, the middle floating ball valve 7 opens the floating ball 25 to lose buoyancy, the lower valve of the sealing sleeve 2 is closed, meanwhile, the lower valve of the sealing sleeve 2 is closed when the floating ball 8 of the bottom floating ball valve loses buoyancy, the lower valve of the sealing sleeve 2 is opened, when the liquid level is higher than the bottom nozzle 4, the floating ball 8 floats upwards to close the upper valve of the sealing sleeve 2, and simultaneously, when the floating ball 7 rises to make the sealing sleeve 2 ascend, the middle floating ball valve 7 is opened, and when the liquid level is higher than the middle nozzle 4, the floater 25 of middle part ball cock 7 rises to make the 2 decline valves of seal tube close, simultaneously, 6 floater 25 of upper portion ball cock rise and make seal tube 2 rise and make the 6 linkage that open of upper portion ball cock 6, the fall when making the fused salt circulation reduces, the impact force reduces, thereby the protective tank body 1, the life of extension molten salt jar, manufacturing cost has been saved, simultaneously the fused salt through in the spout baffle 28 block the fall back jar, thereby change the distance of spout baffle 28 and spout 4 and change spout baffle 28 installation angle can change the form after the fused salt sprays and distribute the mixing ratio that improves the fused salt, thereby the temperature of fused salt is more balanced, the interior bottom fixedly connected with vortex dish 9 of the jar body 1, the fused salt is through the vortex, 21 can make the interior fused salt rotatory along with the direction of inhaling during the inhalation, thereby can make the more intensive mixing of fused salt make the fused salt more balanced.

Example 2

On the basis of embodiment 1, embodiment 2 differs from embodiment 1 in that: the inner bottom of the tank body 1 is fixedly connected with a vortex plate 9, one end of the circulating pipe 14 is provided with a regulating valve 15, one end of the material pipe close to the inner bottom of the tank body 1 is fixedly connected with a molten salt pump 16, the molten salt pump 16 is connected with a motor 18 through a driving shaft 17 and a sleeve, the bottom of the tank body 1 is fixedly connected with a sedimentation tank 19, the bottom of the sedimentation tank 19 is fixedly connected with a discharge valve 20, a vortex hole 21 is arranged on the vortex plate 9, a driving shaft hole 22, a single-piece flange 23 and a pump outlet hole 24 are arranged on the vortex plate 9 and are fixed with a flange 5 of a sealing sleeve 2 for the vortex plate 9, the outer sides of a plurality of groups of nozzles 4 are all provided with a nozzle baffle 28, and when the molten salt pump 16, the vortex plate 9, the vortex hole 21, the circulating pipe 14 and the tank body 1 are arranged, and the molten salt pump 16 pumps the molten salt to the tank body 14, the compartment internal pressure of vortex dish 9 and jar body 1 reduces, inhale the compartment through vortex hole 21 with the fused salt in the jar body 1, because the special construction and the overall arrangement of vortex hole 21, make the fused salt in the jar body 1 be the vortex form rotatory, make the upper and lower floor of the inlayer of fused salt carry out abundant stirring, thereby make the inside and outside upper and lower temperature of whole fused salt all keep unanimous, prevent that low temperature fused salt from leading to the collecting system to produce undulantly because of the temperature is unbalanced, thereby high temperature fused salt leads to the heat exchanger undulantly to fluctuate further causing the generator to fluctuate because of the temperature is unbalanced, cause efficiency reduction and equipment to damage.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained in the present document by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention.