A hot water storage tank for improving the hot water output rate

Abstract

The present invention discloses a hot water storage tank for improving the hot water output rate, which relates to the technical field of hot water storage tanks. It includes a box body, and a floating disk for separating cold water and hot water is arranged inside the box body. The density of hot water, the density of the floating disk, and the density of cold water increase in sequence. By arranging the floating disk inside the box body, the present invention can make the floating disk float between the cold water layer and the hot water layer of tap water, thereby realizing the physical separation of the cold water layer and the hot water layer, reducing the contact area between the cold water layer and the hot water layer, then reducing the agitation of cold water and hot water, reducing the heat dissipation of hot water, slowing down the cooling rate of hot water, achieving the effect of improving the hot water output rate, enabling users to use hotter hot water and facilitating user use.

Description

Technical Field

[0001] The present invention relates to the technical field of hot water storage tanks, and specifically to a hot water storage tank for improving the hot water output rate. Background Art

[0002] With the increasing advocacy of environmental protection, more and more users choose to use solar water heaters, which include solar collectors and hot water storage tanks.

[0003] In the hot water storage tank, since the density of hot water is smaller than that of cold water, hot water is distributed above cold water. Due to the temperature difference between cold water and hot water, the cold and hot water will stir each other, increasing the heat loss of hot water and accelerating the cooling rate of hot water, thereby reducing the hot water output rate.

[0004] Therefore, how to reduce the stirring of cold and hot water to improve the hot water output rate is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] Aiming at the above deficiencies of the existing technology, the present invention provides a hot water storage tank for improving the hot water output rate, which can reduce the stirring of cold and hot water and improve the hot water output rate.

[0006] To achieve the above object, the invention provides the following technical solutions:

[0007] A hot water storage tank for improving the hot water output rate includes a box body, and a floating disk for separating cold water and hot water is arranged in the box body, and the density of hot water, the density of the floating disk, and the density of cold water increase in sequence.

[0008] Further, the floating disk adopts a hollow structure.

[0009] Further, an installation hole for taking and placing the floating disk into the box body and a cover plate for covering the installation hole are arranged on the upper end surface of the box body.

[0010] Further, a taking and placing device is arranged in the box body, and the taking and placing device includes a sleeve, a sliding cylinder, a sliding rod, a connecting rod, a retractable net, and a flexible connecting piece. The sleeve, the sliding cylinder, and the sliding rod are arranged from outside to inside in sequence. The upper end of the sleeve is open, and the sleeve is matched with the installation hole. The upper end of the sleeve is connected to the box body. The lower end of the sliding rod is connected to the sleeve. The sliding cylinder is slidably connected to the sliding rod. A plurality of connecting holes are arranged at the lower end of the sleeve. The connecting rod is arranged in the connecting hole. The upper end of the connecting rod is hinged to the sliding cylinder. The lower end of the connecting rod is connected to the edge of the retractable net. One end of the flexible connecting piece is connected to the box body, and the other end of the flexible connecting piece is connected to the sliding cylinder.

[0011] Further, a support plate is arranged at the upper end of the sleeve, and the support plate is arranged on the upper end surface of the box body.

[0012] Further, a limiting block is provided at the edge of the support plate, and a limiting groove cooperating with the limiting block is provided on the upper end surface of the box body.

[0013] Further, a fixing hook is provided on the box body, and a fixing ring cooperating with the fixing hook is provided at one end of the flexible connecting piece far from the sliding cylinder.

[0014] Further, an extension cylinder with both upper and lower ends open is provided inside the sleeve. A limiting plate for preventing the sliding cylinder from sliding upward is provided at the upper end of the sliding rod. The extension cylinder cooperates with the mounting hole. The upper end of the extension cylinder is connected to the box body, and the extension cylinder is slidably connected to the sleeve.

[0015] Compared with the prior art, the beneficial effects of the invention are as follows:

[0016] 1. By arranging a floating disc in the box body, the present invention can make the floating disc float between the cold water layer and the hot water layer, thereby realizing the physical separation of the cold water layer and the hot water layer, reducing the contact area between the cold water layer and the hot water layer, then reducing the agitation of cold water and hot water, reducing the heat dissipation of hot water, slowing down the cooling rate of hot water, achieving the effect of improving the output rate of hot water, enabling users to use hotter hot water and facilitating user use. The present invention is particularly suitable for use in a hot water storage tank.

[0017] 2. By arranging a mounting hole for taking and placing the floating disc into and out of the box body and a cover plate for covering the mounting hole on the box body, the present invention can replace the floating disc in a timely manner when the floating disc ages, avoiding the shrinkage of the area for separating the hot water layer and the cold water layer due to cracks or deformation in the aged floating disc, and preventing the re - increase of the agitation between hot water and cold water, thereby avoiding the increase of heat dissipation of hot water, avoiding the acceleration of the cooling rate of hot water, and avoiding the reduction of the output rate of hot water.

[0018] 3. By arranging a taking - and - placing device, on the one hand, the operation of fishing out the floating disc from the box body can be completed at one time, without the user fishing out the floating discs one by one from the box body, improving the replacement efficiency of the floating disc, and thus improving the maintenance efficiency of the hot water storage tank.

[0019] On the other hand, the present invention can fish out the floating disc without the user having to check the position of the floating disc in advance, reducing the difficulty of fishing out the floating disc, and thus reducing the difficulty of maintaining the hot water storage tank.

[0020] On yet another hand, even when fishing out the floating disc when there is hot water in the box body, since the user does not need to directly fish it out, the risk of scalding the user is reduced, the safety of replacing the floating disc is improved, and thus the safety of maintaining the hot water storage tank is improved.

[0021] The above three aspects all facilitate the user to maintain the hot water storage tank and avoid delaying the use of the hot water storage tank.

[0022] 4. By providing a limiting block at the edge of the support plate and a limiting groove on the upper end face of the box body that cooperates with the limiting block, the present invention enables the limiting block to be blocked by the groove wall of the limiting groove, thereby preventing the picking and placing device from rotating in the inner tank, improving the stability of the picking and placing device, and avoiding the agitation of hot water and cold water caused by the rotation of the picking and placing device, thus helping to slow down the cooling of the hot water and further increasing the output rate of the hot water.

[0023] 5. By providing a fixing hook on the box body and a fixing ring at the end of the flexible connecting piece away from the sliding cylinder that cooperates with the fixing hook, the present invention can hook the end of the flexible connecting piece away from the sliding cylinder on the fixing ring when the flexible connecting piece does not need to be pulled, thereby preventing the flexible connecting piece from completely sliding into the sleeve from the open end of the sleeve after the cover plate is opened, eliminating the need for the user to waste time fishing the flexible connecting piece out of the sleeve, facilitating the user to operate the flexible connecting piece to replace the floating disk, making the maintenance of the hot water storage tank more convenient, and further preventing the delay in the use of the hot water storage tank.

[0024] 6. By providing an extension cylinder in the sleeve and a limiting plate at the upper end of the sliding rod in the sleeve, the present invention can increase the length of the sleeve to facilitate increasing the lowering depth of the retractable net. Thus, even when there is less cold water, due to the increased lowering depth of the retractable net, the moving range of the floating disk rising and falling in the water is increased, preventing the floating disk from being intercepted in the retractable net and unable to move downward. Therefore, the floating disk can always effectively separate the cold water and the hot water, improving the hot water output rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Structural schematic of the floating disk in Embodiment 1 Figure 1 ;

[0026] Figure 2 Structural schematic of the floating disk in Embodiment 1 Figure 2 ;

[0027] Figure 3 Structural schematic diagram of a hot water storage tank for improving the hot water output rate in Embodiment 1;

[0028] Figure 4 Structural schematic diagram of the floating disk in Embodiment 2;

[0029] Figure 5 Structural schematic diagram of a hot water storage tank for improving the hot water output rate in Embodiment 3;

[0030] Figure 6 Structural schematic of the picking and placing device in Embodiment 4 Figure 1 ;

[0031] Figure 7 Structural schematic of the picking and placing device in Embodiment 4 Figure 2 ;

[0032] Figure 8 Schematic diagram of the structure of a hot water storage tank for improving the hot water output rate in Embodiment 4 Figure 1 ;

[0033] Figure 9 For Figure 8 Partial enlarged view at A;

[0034] Figure 10 For Figure 9 Schematic diagram of the structure where the flexible connecting member is a rope in

[0035] Figure 11 Schematic diagram of the structure of a hot water storage tank for improving the hot water output rate in Embodiment 4 Figure 2 ;

[0036] Figure 12 Schematic diagram of the structure of a hot water storage tank for improving the hot water output rate in Embodiment 5

[0037] Figure 13 Schematic diagram of the structure of the picking and placing device in Embodiment 6 Figure 1 ;

[0038] Figure 14 Schematic diagram of the structure of the picking and placing device in Embodiment 6 Figure 2 ;

[0039] Figure 15 Schematic diagram of the structure of a hot water storage tank for improving the hot water output rate in Embodiment 6

[0040] Figure 16 Schematic diagram of the structure of a hot water storage tank for improving the hot water output rate in Embodiment 7

[0041] In the figure:

[0042] 1 - floating disk, 1 - 1 - sphere, 1 - 2 - annular disk, 2 - box body, 2 - 1 - inner tank, 2 - 1 - 1 - inner tank top plate, 2 - 1 - 1 - 1 - mounting hole, 2 - 1 - 2 - inner tank side plate, 2 - 1 - 3 - inner tank bottom plate, 2 - 2 - insulation layer, 2 - 2 - 1 - insulation layer avoidance hole, 2 - 3 - outer shell, 2 - 3 - 1 - outer shell avoidance hole, 2 - 3 - 2 - second limiting groove, 3 - heat exchange coil, 4 - cold water pipe, 5 - hot water pipe, 6 - cold circulation pipe, 7 - hot circulation pipe, 8 - solar collector, 9 - cover plate, 10 - sleeve, 10 - 1 - connection hole, 11 - sliding cylinder, 12 - sliding rod, 13 - connecting rod, 14 - retractable net, 15 - flexible connecting member, 16 - support plate, 17 - gripping rod, 18 - connecting ring, 19 - mounting ring, 20 - elastic member, 21 - fixed hook, 22 - fixed ring, 23 - extension cylinder, 23 - 1 - long hole, 24 - limiting plate, 25 - insertion block, 26 - limiting block. Detailed implementation manners

[0043] The technical solutions in 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Embodiment 1

[0045] A hot water storage tank for improving the hot water output rate includes a tank body 2. A floating disk 1 for separating cold water and hot water is installed in the tank body 2. The density of hot water, the density of the floating disk 1, and the density of cold water increase in sequence.

[0046] As Figure 1 and Figure 2 shown, the floating disk 1 is made of silica gel material. The floating disk 1 includes a sphere 1-1 and an annular disk 1-2 provided at the edge of the sphere 1-1. The sphere 1-1 and the annular disk 1-2 are integrally formed. The ball diameter d1 of the sphere 1-1 is 20 mm, the outer diameter d2 of the annular disk 1-2 is 60 mm, and the thickness m of the annular disk 1-2 is 2 mm. The weight of the floating disk 1 is 9.083 g (the density of the floating disk 1, that is, the weight-to-volume ratio is 0.985 g / cm 3 ).

[0047] As Figure 3 shown, the tank body 2 includes an inner tank 2-1, a heat insulation layer 2-2, and an outer shell 2-3 arranged in sequence from the inside to the outside. The inner tank 2-1 adopts a cylindrical structure with both upper and lower ends closed. The inner tank 2-1 includes an inner tank top plate 2-1-1, an inner tank side plate 2-1-2, and an inner tank bottom plate 2-1-3 welded and fixed in sequence from top to bottom. The inner tank bottom plate 2-1-3 is provided with a cold water hole, a hot water hole, a cold circulation hole, and a hot circulation hole.

[0048] During assembly: (1) Punch holes in the inner tank bottom plate 2-1-3 to obtain a cold water hole, a hot water hole, a cold circulation hole, and a hot circulation hole. Weld a heat exchange coil 3 on the inner tank bottom plate 2-1-3, and connect the water inlet end of the heat exchange coil 3 to the hot circulation hole, and the water outlet end of the heat exchange coil 3 to the cold circulation hole.

[0049] (2) Before welding the inner tank top plate 2-1-1, the inner tank side plate 2-1-2, and the inner tank bottom plate 2-1-3 together, put a plurality of floating disks 1 into the inner tank 2-1, and then weld the inner tank top plate 2-1-1, the inner tank side plate 2-1-2, and the inner tank bottom plate 2-1-3 into one body to obtain the inner tank 2-1 with a cylindrical structure with both upper and lower ends closed.

[0050] (3) Insert the cold water pipe 4 into the cold water hole, the hot water pipe 5 into the hot water hole, the cold circulation pipe 6 into the cold circulation hole, and the hot circulation pipe 7 into the hot circulation hole, and weld the cold water pipe 4, the hot water pipe 5, the cold circulation pipe 6, and the hot circulation pipe 7 together with the inner tank 2-1.

[0051] The cold circulation pipe 6 is connected to the water inlet of the solar collector 8 at one end away from the inner tank 2-1, and the hot circulation pipe 7 is connected to the water outlet of the solar collector 8 at one end away from the inner tank 2-1, so that the solar collector 8, the hot circulation pipe 7, the heat exchange coil 3, and the cold circulation pipe 6 form a circulation loop. The circulation loop is filled with a heat exchange medium, and the heat exchange medium is water.

[0052] (4) Lay a heat-insulating layer 2-2 outside the inner liner 2-1, and cover the outer shell 2-3 outside the heat-insulating layer 2-2.

[0053] When in use: tap water is added from the cold water pipe 4 to the inner tank 2-1, and the tap water is cold at this time. Since the density of the floating plate 1 is smaller than that of cold water, the floating plate 1 floats on the water surface at this time.

[0054] The solar collector 8 converts light energy into heat energy and transfers it to the heat exchange medium in the circulation loop. After the heat exchange medium is heated up, it enters the heat exchange coil 3 located in the inner tank 2-1 from the heat circulation pipe 7. The heat exchange coil 3 transfers the heat of the heat exchange medium to the cold water in the inner tank 2-1. A part of the cold water is heated up to hot water. After the heat exchange medium is cooled down, it flows back to the solar collector 8 from the cold circulation pipe 6 to continue absorbing the heat of sunlight.

[0055] Since the inner tank 2-1 contains not only cold water but also hot water, and the densities of the cold water, the floating plate 1, and the hot water decrease in sequence, the floating plate 1 is subjected to the buoyancy from the tap water and its own gravity. Thus, when the difference between the density of the cold water and the density of the hot water is equal to the density of the floating plate 1, the floating plate 1 can be suspended between the cold water layer and the hot water layer of the tap water. Figure 3 As shown, the physical separation of the cold water layer and the hot water layer is achieved, the contact area between the cold water layer and the hot water layer is reduced, and then the agitation of the cold water and the hot water is reduced, the heat loss of the hot water is reduced, the cooling rate of the hot water is slowed down, and the output rate of the hot water is improved, so that users can use hotter hot water and it is convenient for users to use.

[0056] Example 2

[0057] The floating plate 1 can be not only solid but also hollow. Specifically, based on the embodiment 1, the embodiment 2 makes the following improvements: Figure 4 As shown, the sphere 1-1 of the floating plate 1 is provided with a spherical cavity, the diameter d3 of the spherical cavity is 6.478 mm, the density of silica gel is 1.03, the weight of the floating plate 1 is 4.168 g, and the weight-to-volume ratio of the floating plate 1 is 0.995 g / cm3 。

[0058] Example 3

[0059] In Example 1 or Example 2, the floating disk 1 will age after long-term use. On the one hand, cracks or deformations will appear on the aged floating disk 1, thus reducing the area of the floating disk 1 that separates the hot water layer and the cold water layer, increasing the agitation of the hot water and the cold water again, increasing the heat dissipation of the hot water, accelerating the cooling rate of the hot water, and reducing the hot water output rate. On the other hand, the aged floating disk 1 made of silica gel material will emit harmful substances, thus reducing the safety.

[0060] In this regard, it is necessary to replace the new floating disk 1. However, in Example 1 or Example 2, there is no opening on the inner tank 2-1 for taking in and out the floating disk 1, so the floating disk 1 cannot be replaced.

[0061] In this regard, on the basis of Example 1 or Example 2, the following improvements are made in this Example 3:

[0062] In this Example 3, as Figure 5 shown, the inner tank top plate 2-1-1 is provided with an installation hole 2-1-1-1, the heat insulation layer 2-2 covering the outside of the inner tank 2-1 is provided with a heat insulation layer avoidance hole 2-2-1 for avoiding the installation hole 2-1-1-1, and the outer shell 2-3 covering the outside of the heat insulation layer 2-2 is also provided with an outer shell avoidance hole 2-3-1 for avoiding the installation hole 2-1-1-1. A cover plate 9 for covering the outer shell avoidance hole 2-3-1 is provided on the outer shell 2-3, and the cover plate 9 is hinged to the outer shell 2-3.

[0063] Therefore, when assembling this Example 3, it is not necessary to put a plurality of floating disks 1 into the inner tank 2-1 before welding the inner tank top plate 2-1-1, the inner tank side plate 2-1-2, and the inner tank bottom plate 2-1-3 together. Just after assembling the box body 2, open the cover plate 9 and put a plurality of floating disks 1 into the inner tank 2-1 from the installation hole 2-1-1-1.

[0064] When the floating disk 1 ages and needs to be replaced, the user can fish out the floating disks 1 one by one from the installation hole 2-1-1-1 by hand or using tools such as a hook.

[0065] It can be seen from the above process that: compared with Example 1 or Example 2, this Example 3 can immediately replace the floating disk 1 after the floating disk 1 ages. On the one hand, it avoids the situation that the area of the floating disk 1 that separates the hot water layer and the cold water layer is reduced due to cracks or deformations on the aged floating disk 1, avoids the increase in the agitation of the hot water and the cold water again, thus avoiding the increase in the heat dissipation of the hot water, avoiding the acceleration of the cooling rate of the hot water, and avoiding the reduction of the hot water output rate; on the other hand, it also improves the safety.

[0066] Example 4

[0067] In Example 3, since the position of the floating disc 1 cannot be clearly seen from the installation hole 2-1-1-1, it is difficult for the user to fish out the floating disc 1, increasing the difficulty of replacing the floating disc 1. If the floating disc 1 is fished out when there is hot water in the inner tank 2-1, it is also easy to scald the user, thus reducing the safety of replacing the floating disc 1.

[0068] In response to this, on the basis of Example 3, the following improvements are made in this Example 4:

[0069] In this Example 4: As Figures 6 - 8 shown, a taking and placing device is provided in the inner tank 2-1. The taking and placing device includes a sleeve 10, a sliding cylinder 11, a sliding rod 12, a connecting rod 13, a retractable net 14, and a flexible connecting piece 15.

[0070] The sleeve 10, the sliding cylinder 11, and the sliding rod 12 are arranged in sequence from outside to inside.

[0071] The sleeve 10 is matched with the installation hole 2-1-1-1 provided on the top plate 2-1-1 of the inner tank, that is, the sleeve 10 can be inserted into or pulled out from the installation hole 2-1-1-1. The upper end of the sleeve 10 is open, and a ring-shaped support plate 16 is welded to the upper end of the sleeve 10. The support plate 16 is arranged on the upper end surface of the top plate 2-1-1 of the inner tank, and the outer diameter of the support plate 16 is larger than the aperture of the installation hole 2-1-1-1. Such a setting can make the support plate 16 be supported by the box body 2, thereby preventing the sleeve 10 from falling into the inner tank 2-1.

[0072] A grasping rod 17 is welded to the middle of the ring-shaped support plate 16, which can facilitate the user to lift the taking and placing device of this Example 4 by grasping the grasping rod 17.

[0073] The lower end of the sliding rod 12 is fixedly welded to the sleeve 10.

[0074] The sliding cylinder 11 can slide up and down along the sliding rod 12.

[0075] Four connecting holes 10-1 are provided at the lower end of the sleeve 10. The connecting rod 13 is arranged in the connecting hole 10-1. The upper end of the connecting rod 13 is hinged to the sliding cylinder 11, and a connecting ring 18 is welded to the lower end of the connecting rod 13. A binding band is sewn on the edge of the retractable net 14. When installing the retractable net 14 and the connecting rod 13 together, only need to tie the binding band to the connecting ring 18.

[0076] When the flexible connecting piece 15 is made of steel wire, as Figure 9 shown, one end of the steel wire is fixedly welded to the sliding cylinder 11, and the other end of the steel wire passes through the open end of the sleeve 10.

[0077] When the flexible connecting piece 15 is made of a rope, as Figure 10As shown, one end of the rope is tied to the mounting ring 19, the mounting ring 19 is welded and fixed to the slide cylinder 11, and the other end of the rope passes through the open end of the sleeve 10.

[0078] When installing the pick-up and release device: (1) first, the user puts a plurality of floating disks 1 into the retractable net 14;

[0079] Then the user pulls the flexible connector 15 upwards, and the flexible connector 15 pulls the slide 11, so that the slide 11 moves upward with the upper end of the connecting rod 13. Since the connecting rod 13 is blocked by the hole wall of the connecting hole 10-1, the lower end of the connecting rod 13 is retracted, thereby retracting the retractable net 14.

[0080] (2) The user keeps pulling the flexible connector 15 upward, and first inserts the pick-and-place device with the connecting rod 13 folded into the inner liner 2-1 through the mounting hole 2-1-1-1 of the inner liner 2-1, until the support plate 16 falls on the upper end surface of the inner liner top plate 2-1-1;

[0081] Then, the user slowly releases the upward pull on the flexible connector 15, so that the slide cylinder 11 slides downward along the slide rod 12 under the action of its own gravity. As the slide cylinder 11 slides, the connecting rod 13 can extend from the connecting hole 10-1, and the connecting rod 13 is supported by the bottom of the sleeve 10 and opens. The opened connecting rod 13 opens together with the retractable net 14, and the multiple floating disks 1 located in the retractable net 14 can be released, so that the floating disks 1 can be suspended between the hot water layer and the cold water layer, thereby realizing the physical separation of the cold water layer and the hot water layer, reducing the contact area between the cold water layer and the hot water layer, and then reducing the agitation of the cold water and the hot water, reducing the heat loss of the hot water, slowing down the cooling rate of the hot water, and achieving the effect of improving the output rate of the hot water.

[0082] Finally, the user pushes the end of the flexible connector 15 away from the slide 11 to the upper end surface of the housing 2 - 3 , covers the cover plate 9 , and clamps the flexible connector 15 between the cover plate 9 and the upper end surface of the housing 2 - 3 .

[0083] When removing the pick-and-place device: (1) first the user opens the cover 9.

[0084] Then the user pulls the portion of the flexible connector 15 exposed on the upper end surface of the shell 2-3 and pulls the flexible connector 15 upward. The flexible connector 15 pulls the slide cylinder 11 upward together, and the slide cylinder 11 moves upward together with the connecting rod 13, so that the connecting rod 13 is gradually retracted into the sleeve 10, so that the lower end of the connecting rod 13 is gradually retracted, and the retracted connecting rod 13 is retracted together with the retractable net 14, and the retracted retractable net 14 will also retract the floating disk 1 suspended between the cold water layer and the hot water layer into the retractable net 14.

[0085] (2) First, the user maintains the state of pulling the flexible connecting member 15 upward, grasps the gripping rod 17, and pulls out the picking and placing device from the mounting hole 2-1-1-1.

[0086] Then, the user replaces the aged floating disk 1 that has been retracted by the retractable net 14 with a new floating disk 1, and then installs it according to the steps of "installing the picking and placing device".

[0087] From the above usage process, it can be seen that: compared with Embodiment 3, on the one hand, in this Embodiment 4, the operation of fishing out the floating disk 1 from the inner tank 2-1 can be completed at one time, without the user fishing out the floating disks 1 one by one from the inner tank 2-1, which improves the replacement efficiency of the floating disk 1 and thus improves the maintenance efficiency of the hot water storage tank. On the other hand, in this Embodiment 4, the user can fish out the floating disk 1 without having to look at the position of the floating disk 1 in advance, which reduces the difficulty of fishing out the floating disk 1 and thus reduces the difficulty of maintaining the hot water storage tank. On the other hand, even when fishing out the floating disk 1 when there is hot water in the inner tank 2-1, since the user does not need to directly fish it out, the risk of scalding the user is reduced, the safety of replacing the floating disk 1 is improved, and thus the safety of maintaining the hot water storage tank is improved. The above three aspects all facilitate the user to maintain the hot water storage tank and avoid delaying the use of the hot water storage tank.

[0088] In addition, in order to improve the reliability of the opening of the connecting rod 13, as Figure 11 shown, an elastic member 20 is provided between the connecting rod 13 and the sliding cylinder 11. The elastic member 20 is a spring. One end of the spring is fixedly welded to the sliding cylinder 11, and the other end of the spring is fixedly welded to the connecting rod 13. Thus, when the sliding cylinder 11 drives the connecting rod 13 to move upward and the connecting rod 13 is retracted, the spring is in a compressed state, and the spring has an elastic force to push the connecting rod 13 open again. When the connecting rod 13 moves downward together with the sliding cylinder 11, the connecting rod 13 can also be opened under the action of the spring, thereby improving the reliability of the opening of the connecting rod 13.

[0089] Embodiment 5

[0090] In Embodiment 4, since one end of the flexible connecting member 15 far from the sliding cylinder 11 is not fixed at all, after the cover plate 9 is opened, the flexible connecting member 15 is likely to completely slide into the sleeve 10 from the open end of the sleeve 10. Once the flexible connecting member 15 completely slides into the sleeve 10, it is not easy for the user to fish out the flexible connecting member 15 from the sleeve 10, so the user needs to waste time fishing out the flexible connecting member 15 from the sleeve 10, increasing the difficulty of maintaining the hot water storage tank.

[0091] In response to this, in this Embodiment 5, on the basis of Embodiment 4, the following improvements are made:

[0092] In this Embodiment 5: As Figure 12As shown, a fixing hook 21 is welded on the upper end surface of the shell 2-3, and a fixing ring 22 cooperating with the fixing hook 21 is provided at the end of the flexible connector 15 away from the slide 11. Specifically: when the flexible connector 15 adopts a steel wire, the steel wire is welded and fixed to the fixing ring 22 at the end away from the slide 11; when the flexible connector 15 adopts a rope, the rope is tied to the fixing ring 22 at the end away from the slide 11.

[0093] When installing the pick-up and release device: (1) first, the user puts a plurality of floating disks 1 into the retractable net 14;

[0094] Then, the user pulls the flexible connector 15 upwards, and the flexible connector 15 pulls the slide 11, allowing the slide 11 to move upward with the upper end of the connecting rod 13. Since the connecting rod 13 is blocked by the hole wall of the connecting hole 10-1, the lower end of the connecting rod 13 is retracted, thereby allowing the retractable net 14 to be retracted as well.

[0095] (2) The user keeps pulling the flexible connector 15 upward, and first inserts the pick-and-place device with the connecting rod 13 folded into the inner liner 2-1 through the mounting hole 2-1-1-1 of the inner liner 2-1, until the support plate 16 falls on the upper end surface of the inner liner top plate 2-1-1;

[0096] Then, the user slowly releases the upward pull on the flexible connector 15, so that the slide cylinder 11 slides downward along the slide rod 12 under the action of its own gravity. As the slide cylinder 11 slides, the connecting rod 13 can extend from the connecting hole 10-1, and the connecting rod 13 is supported by the bottom of the sleeve 10 and opens. The opened connecting rod 13 opens together with the retractable net 14, and the multiple floating disks 1 located in the retractable net 14 can be released, so that the floating disks 1 can be suspended between the hot water layer and the cold water layer, thereby realizing the physical separation of the cold water layer and the hot water layer, reducing the contact area between the cold water layer and the hot water layer, and then reducing the agitation of the cold water and the hot water, reducing the heat loss of the hot water, slowing down the cooling rate of the hot water, and achieving the effect of improving the output rate of the hot water.

[0097] Finally, the user hooks the fixing ring 22 of the flexible connector 15 at the end away from the slide tube 11 onto the fixing hook 21 and covers the cover plate 9 .

[0098] When removing the pick-and-place device: (1) First, the user opens the cover plate 9 and removes the fixing ring 22 hooked on the fixing hook 21.

[0099] Then, the user grabs the part of the flexible connecting piece 15 exposed on the upper end face of the outer shell 2-3 and pulls the flexible connecting piece 15 upward. The flexible connecting piece 15 pulls the sliding cylinder 11 to move upward together, and the sliding cylinder 11 drives the connecting rod 13 to move upward together, so that the connecting rod 13 gradually moves into the sleeve 10, and the lower end of the connecting rod 13 gradually closes up. The closed connecting rod 13 drives the retractable net 14 to close up together, and the closed retractable net 14 also closes up the floating disk 1 suspended between the cold water layer and the hot water layer into the retractable net 14 only.

[0100] (2) First, the user maintains the state of pulling the flexible connecting piece 15 upward and grasps the grasping rod 17, and pulls out the picking and placing device from the mounting hole 2-1-1-1.

[0101] Then, the user replaces the aged floating disk 1 closed by the retractable net 14 with a new floating disk 1, and then installs it according to the steps of "installing the picking and placing device".

[0102] From the above usage process, it can be seen that: compared with Embodiment 4, in this Embodiment 5, by setting the fixed hook 21 and the fixed ring 22, when it is not necessary to pull the flexible connecting piece 15, the end of the flexible connecting piece 15 far from the sliding cylinder 11 can be hooked on the fixed ring 22, so that after opening the cover plate 9, the flexible connecting piece 15 is prevented from completely sliding into the sleeve 10 from the open end of the sleeve 10, so that there is no need for the user to waste time fishing out the flexible connecting piece 15 from the sleeve 10, which is convenient for the user to operate the flexible connecting piece 15 to replace the floating disk 1, making the maintenance of the hot water storage tank more convenient and further avoiding delaying the use of the hot water storage tank.

[0103] Embodiment 6

[0104] In Embodiment 5, because after the retractable net 14 is set, the distance between the retractable net 14 and the water surface is the allowable lifting range of the floating disk 1 in the water.

[0105] When there is less cold water in the inner tank 2-1 and the height of the cold water layer is lower than that of the retractable net 14, the floating disk 1 will be intercepted by the retractable net 14 in the retractable net 14 and cannot move downward, so that the floating disk 1 cannot effectively separate the cold water and the hot water. Therefore, the agitation of the hot water and the cold water below the floating disk 1 is increased, the cooling of the hot water below the floating disk 1 is accelerated, and the hot water output rate is also reduced.

[0106] In this regard, it is necessary to increase the depth of the retractable net 14 placed in the inner tank 2-1 to increase the lifting range of the floating disk 1 in the water, so that the floating disk 1 can always effectively separate the cold water and the hot water.

[0107] Specifically: On the basis of Embodiment 5, in this Embodiment 6, as Figures 13 - 15 shown, the following improvements are made:

[0108] In the present embodiment 6, an extension tube 23 with open ends at the upper and lower ends is provided in the sleeve 10, and the extension tube 23 cooperates with the mounting hole 2-1-1-1, that is, the extension tube 23 can also be inserted into or pulled out from the mounting hole 2-1-1-1.

[0109] The upper end of the sleeve 10 is no longer provided with a support plate 16 , but a support plate 16 is provided at the upper end of the extension tube 23 , and the support plate 16 is fixed to the extension tube 23 by welding.

[0110] A limit plate 24 for preventing the slide cylinder 11 from sliding upward is welded to the upper end of the slide rod 12 . The limit plate 24 is annular, and the outer diameter of the annular limit plate 24 is larger than the inner diameter of the slide cylinder 11 .

[0111] The extension tube 23 is slidably connected with the sleeve 10. More specifically, the wall of the extension tube 23 is provided with a vertically arranged long hole 23-1, and an insert block 25 is welded on the upper end of the sleeve 10. The insert block 25 cooperates with the long hole 23-1. When the sleeve 10 slides up and down along the extension tube 23, the insert block 25 can slide up and down in the long hole 23-1 together with the sleeve 10. When the insert block 25 slides to the lowest end of the long hole 23-1, the hole wall of the long hole 23-1 can support the insert block 25, so that the insert block 25 will not continue to fall, thereby stopping the sleeve 10 from falling and preventing the sleeve 10 from detaching from the extension tube 23.

[0112] When installing the pick-up and release device: (1) first, the user puts a plurality of floating disks 1 into the retractable net 14;

[0113] Then, the user pulls the flexible connector 15 upwards, and the flexible connector 15 pulls the slide 11, allowing the slide 11 to move upward with the upper end of the connecting rod 13. Since the connecting rod 13 is blocked by the hole wall of the connecting hole 10-1, the lower end of the connecting rod 13 is retracted, thereby allowing the retractable net 14 to be retracted as well.

[0114] (2) The user keeps pulling the flexible connector 15 upward, and first inserts the pick-and-place device with the connecting rod 13 folded into the inner liner 2-1 through the mounting hole 2-1-1-1 of the inner liner 2-1, until the support plate 16 falls on the upper end surface of the inner liner top plate 2-1-1;

[0115] Then, the user slowly releases the upward pulling of the flexible connecting member 15, so that the sliding cylinder 11 slides downward along the sliding rod 12 under the action of its own gravity. As the sliding cylinder 11 slides, the connecting rod 13 can extend out of the connecting hole 10-1, and the connecting rod 13 is supported by the bottom of the sleeve 10 and opens. The opened connecting rod 13 drives the retractable net 14 to open together. A plurality of floating disks 1 located in the retractable net 14 can be released, so that the floating disks 1 can be suspended between the hot water layer and the cold water layer, thereby realizing the physical separation of the cold water layer and the hot water layer, reducing the contact area between the cold water layer and the hot water layer, then reducing the agitation of the cold water and the hot water, reducing the heat dissipation of the hot water, slowing down the cooling rate of the hot water, and achieving the effect of improving the output rate of the hot water;

[0116] Moreover, as the flexible connecting member 15 is released, the sleeve 10 will also slide downward along the extension cylinder 23 under the action of its own gravity. When the sleeve 10 slides downward along the extension cylinder 23, the insertion block 25 can slide downward in the long hole 23-1 together with the sleeve 10. When the insertion block 25 slides to the lowermost end of the long hole 23-1, the hole wall of the long hole 23-1 can support the insertion block 25, so that the insertion block 25 will not continue to fall. At this time, the sleeve 10 stops falling, and the retractable net 14 also stops descending, and the retractable net 14 falls on the upper end surface of the inner tank bottom plate 2-1-3.

[0117] Finally, the user hooks the fixing ring 22 at the end of the flexible connecting member 15 far from the sliding cylinder 11 to the fixing hook 21, and then covers the cover plate 9.

[0118] When removing the picking and placing device: (1) First, the user opens the cover plate 9 and removes the fixing ring 22 hooked on the fixing hook 21.

[0119] Then, the user grabs the part of the flexible connecting member 15 exposed on the upper end surface of the outer shell 2-3 and pulls the flexible connecting member 15 upward. The flexible connecting member 15 pulls the sliding cylinder 11 to move upward together. The sliding cylinder 11 drives the connecting rod 13 to move upward together, so that the connecting rod 13 gradually retracts into the sleeve 10, and the lower end of the connecting rod 13 gradually closes up. The closed connecting rod 13 drives the retractable net 14 to close up together. The closed retractable net 14 also closes up the floating disks 1 suspended between the cold water layer and the hot water layer into the retractable net 14.

[0120] Continue to pull the flexible connecting member 15. The flexible connecting member 15 continues to drive the sliding cylinder 11 to slide upward. When the sliding cylinder 11 contacts the limiting plate 24, continue to pull the flexible connecting member 15, which will make the sleeve 10 move upward along the extension cylinder 23 until the upper end of the sleeve 10 is close to the support plate 16.

[0121] (2) First, the user maintains the state of pulling the flexible connecting member 15 upward and grasps the grasping rod 17, and pulls out the picking and placing device from the installation hole 2-1-1-1.

[0122] Then, the user will replace the aging floating disk 1 collected by the retractable net 14 with a new floating disk 1, and then install it according to the steps of "installing the picking device".

[0123] From the above usage process, it can be seen that: compared with Embodiment 5, this Embodiment 6 can increase the length of the sleeve 10 to facilitate increasing the lowering depth of the retractable net 14, so that the retractable net 14 falls on the upper end surface of the inner tank bottom plate 2-1-3. Thus, even if there is less cold water, due to the increased lowering depth of the retractable net 14, the moving range of the floating disk 1 rising and falling in the water is increased, so that the floating disk 1 will not be intercepted in the retractable net 14 and cannot move downward. Therefore, the floating disk 1 can always effectively separate cold water and hot water, improving the hot water output rate.

[0124] Embodiment 7

[0125] On the basis of Embodiment 7, this Embodiment 8 makes the following improvements:

[0126] As Figure 16 shown, a limiting block 26 is welded to the edge of the support plate 16. A first limiting groove is provided on the upper end surface of the heat insulation layer 2-2, and a second limiting groove 2-3-2 is provided on the upper end surface of the outer shell 2-3. The first limiting groove and the second limiting groove 2-3-2 communicate to form a limiting groove. The limiting block 26 cooperates with the limiting groove.

[0127] With such a setting, the limiting block 26 can be blocked by the groove wall of the limiting groove, preventing the extension cylinder 23 from rotating in the mounting hole 2-1-1-1, thereby preventing the picking device from rotating in the inner tank 2-1, improving the stability of the picking device, avoiding the agitation of hot water and cold water due to the rotation of the picking device, thus helping to slow down the cooling of hot water and also improving the hot water output rate.

[0128] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A hot water storage tank for improving the hot water output rate, comprising a tank body, characterized in that, A floating disk for separating cold water and hot water is provided inside the box body, and the density of the hot water, the density of the floating disk, and the density of the cold water increase in sequence; An installation hole for taking and placing the floating disk into and out of the box body and a cover plate for shielding the installation hole are provided on the upper end surface of the box body; A taking and placing device is provided inside the box body. The taking and placing device includes a sleeve, a sliding cylinder, a sliding rod, a connecting rod, a retractable net, and a flexible connecting piece. The sleeve, the sliding cylinder, and the sliding rod are arranged in sequence from outside to inside. The upper end of the sleeve is open, and the sleeve is matched with the installation hole. A support plate is provided at the upper end of the sleeve, and the support plate is arranged on the upper end surface of the box body. The lower end of the sliding rod is connected to the sleeve, the sliding cylinder is slidably connected to the sliding rod. A plurality of connecting holes are provided at the lower end of the sleeve, the connecting rod is arranged in the connecting hole, the upper end of the connecting rod is hinged to the sliding cylinder, the lower end of the connecting rod is connected to the edge of the retractable net, one end of the flexible connecting piece is connected to the sliding cylinder, a fixed hook is provided on the box body, and a fixed ring matched with the fixed hook is provided at the end of the flexible connecting piece far away from the sliding cylinder.

2. The hot water storage tank for improving the hot water output rate according to claim 1, characterized in that, The floating disk adopts a hollow structure.

3. The hot water storage tank for improving the hot water output rate according to claim 1, characterized in that, Limit blocks are provided at the edge of the support plate, and limit grooves matched with the limit blocks are provided on the upper end surface of the box body.

4. The hot water storage tank for improving the hot water output rate according to claim 1, characterized in that, An extension cylinder with both upper and lower ends open is provided inside the sleeve. A limit plate for preventing the sliding cylinder from sliding upward is provided at the upper end of the sliding rod. The extension cylinder is matched with the installation hole, the upper end of the extension cylinder is connected to the box body, and the extension cylinder is slidably connected to the sleeve.

Images