A centralized liquid heating platform

Abstract

The present invention relates to the field of liquid heating technology, specifically a centralized liquid heating platform; it includes a lower box body and a control box above the lower box body; a lower box door is provided on the front side of the lower box body; multiple liquid heaters are installed inside the lower box body through a mounting plate and are connected in series; the bottoms of multiple liquid heaters are connected to the outside of the lower box body through a fourth coiled pipe and a fourth joint; the liquid inlet joints and liquid outlet joints of multiple liquid heaters are connected in series through a second coiled pipe; the two ends of the second coiled pipe are connected to the outside of the lower box body through a second joint; the number of activated liquid heaters of the present invention is adapted to the flow rate of the liquid to be heated, thereby meeting the heating requirements of different liquid flow rates. In addition, the liquid can pass over the unactivated liquid heaters. Without passing through the unactivated liquid heaters, the unactivated liquid heaters will be protected, thereby extending the service life of the heating platform.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid heating, in particular to a centralized liquid heating platform. Background Art

[0002] As a device that can accurately heat liquids to a specific temperature, liquid heaters play an important role in many fields such as chemical industry, food, and scientific research, providing reliable and efficient solutions for various liquid heating scenarios. Its working mechanism is very clear: when working, the liquid flows into the liquid heater along the liquid inlet joint, and the internal heating wire quickly converts electrical energy into thermal energy to efficiently heat the liquid. The heated liquid is then discharged smoothly through the liquid outlet joint. However, the power of a single liquid heater is limited and it is difficult to meet high-power heating requirements. Therefore, with the continuous advancement of technology, centralized liquid heating platforms came into being.

[0003] The centralized liquid heating platform innovatively connects multiple liquid heaters in series. During operation, the liquid passes through each liquid heater in turn along the pipeline. During this process, multiple liquid heaters will relay to heat the flowing liquid, and the liquid after heating will flow out along the pipeline. In this platform, the number of enabled liquid heaters is proportional to the heating power. The more enabled the platform is, the greater the power of the heating platform. In order to allow the centralized liquid heating platform to flexibly adapt to different power requirements, the platform can adjust the number of enabled liquid heaters according to actual heating needs. However, this design also has disadvantages. For those liquid heaters that have not been enabled for a long time, the heated liquid will still flow through them. In the long run, on the one hand, it will cause unnecessary energy loss, and on the other hand, the continuous flushing of liquid will accelerate the aging and damage of the non-working liquid heaters, greatly shortening their service life. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology, the present invention proposes a centralized liquid heating platform. The number of activated liquid heaters of the present invention is adapted to the flow rate of the liquid to be heated, thereby meeting the heating requirements of different liquid flow rates. In addition, the liquid can pass over the unactivated liquid heaters. Without passing through the unactivated liquid heaters, the unactivated liquid heaters will be protected, thereby extending the service life of the heating platform.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a centralized liquid heating platform described in the present invention comprises a lower box body and a control box above the lower box body; a lower box door is provided on the front side of the lower box body; a plurality of liquid heaters are installed inside the lower box body through a mounting plate and are connected in series; the bottoms of the plurality of liquid heaters are connected to the outside of the lower box body through a fourth coiled pipe and a fourth joint; the liquid inlet joints and the liquid outlet joints of the plurality of liquid heaters are connected in series through a second coiled pipe; both ends of the second coiled pipe are connected to the outside of the lower box body through a second joint; a first coil is provided just above the plurality of liquid heaters Curved pipe; one end of the first coiled pipe is connected to the liquid outlet end of the second coiled pipe; the first coiled pipe and the second coiled pipe are respectively connected in series with the upper and lower parts of the I-shaped valve; the lower part of the I-shaped valve is connected in series with the liquid inlet joint of the liquid heater; the interior of the I-shaped valve is respectively an upper channel, a vertical channel and a lower channel from top to bottom; the liquid inlet end of the lower channel and the lower end of the vertical channel are provided with an oblique flow groove; the lower end of the vertical channel is connected to the valve core in a movable and sealed manner with the lower channel; the downward-moving valve core can block the liquid outlet end of the lower channel, and the upward-moving valve core can block the lower end of the vertical channel.

[0006] Preferably, a third coiled tube is coiled just below the I-shaped valve; one end portion of the third coiled tube is connected to the liquid inlet end of the second coiled tube; an elastic bag is provided in the third coiled tube; a driving groove is provided through the upper inner wall of the third coiled tube; a driving rod is slidably connected in the driving groove; the upper end of the driving rod passes through the bottom of the I-shaped valve and is fixedly connected to the lower surface of the valve core; the driving rod is slidably and sealingly connected to the I-shaped valve; the lower end of the driving rod rests on the outer wall of the elastic bag inside the third coiled tube.

[0007] Preferably, the upper surface of the valve core is connected to the valve seat through a spring; the valve seat is located in the vertical channel and is strip-shaped; the elastic force of multiple springs increases sequentially in the direction of liquid flow in the second coiled pipe; the upper surface of the valve seat is rotatably connected to a bolt; the upper end of the bolt passes through the top of the I-shaped valve and is sealed with the I-shaped valve thread.

[0008] Preferably, the outer edge diameter of the spring is smaller than the inner diameter of the vertical channel; and a gap is left between the outer edge of the spring and the inner wall of the vertical channel.

[0009] Preferably, the cross-section of the driving rod is rectangular; a rotation groove is provided on the lower outer wall of the driving rod; a rotating block is rotatably connected in the rotation groove; the rotating block forms an integral whole with the outer surface of the driving rod before rotation; and the rotating block is staggered with the outer surface of the driving rod after rotation.

[0010] Preferably, the rotating groove is rotatably connected to the rotating block via a first torsion spring; a lower groove is provided downwardly at the upper end of the driving groove; and the rotating block can be inserted into the lower groove.

[0011] Preferably, an air hole is provided on the upper portion of the outer wall of the third coiled pipe.

[0012] Preferably, the lower end of the driving rod is connected to a cross bar; the cross bar is located inside the third coiled tube and abuts against the outer wall of the elastic bag.

[0013] Preferably, the middle section of the crossbar is rotationally connected to the lower end of the driving rod via a second torsion spring.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The number of activated liquid heaters of the present invention is adapted to the flow rate of the liquid to be heated, thereby meeting the heating requirements of different liquid flow rates. In addition, the liquid can pass over the unactivated liquid heaters. Without passing through the unactivated liquid heaters, the unactivated liquid heaters will be protected, thereby extending the service life of the heating platform.

[0016] 2. The present invention adjusts the pressing force of the spring on the valve core, thereby changing the force with which the valve core is triggered, thereby changing the opening sensitivity of the liquid heater to meet different types of liquid heating needs.

[0017] 3. In the present invention, the transfer block will move out of the drive groove to the top of the drive groove along with the driving rod, and then the drive rod will be released after the transfer block is rotated 90 degrees. The drive rod will move downward under the action of the upper spring. During the downward movement of the drive rod, the transfer block will be driven to vertically press against the upper end of the drive groove, so that the drive rod is restricted and cannot move downward. In this way, the corresponding valve core cannot move in the vertical channel, thereby realizing the normally open state of the corresponding liquid heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 is a perspective view of the present invention;

[0020] Figure 2 This is a diagram of the present invention with the lower door open;

[0021] Figure 3 It is a three-dimensional diagram of the internal parts of the lower box body of the present invention;

[0022] Figure 4 is a perspective view of the third coiled pipe of the present invention;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 It is a cross-sectional view of the I-shaped valve in the present invention;

[0025] Figure 7is a cross-sectional view of the second coiled pipe in the present invention;

[0026] Figure 8 is a three-dimensional diagram of the valve seat of the present invention;

[0027] Figure 9 It is a three-dimensional diagram of the transfer block of the present invention being inserted into the lower groove.

[0028] In the figure: lower box body 1, lower box door 11, control box 2, liquid heater 3, mounting plate 31, liquid inlet joint 32, liquid outlet joint 33, fourth coiled pipe 4, fourth joint 41, second coiled pipe 5, second joint 51, first coiled pipe 6, I-shaped valve 7, upper channel 71, vertical channel 72, lower channel 73, oblique flow groove 74, valve core 8, spring 81, valve seat 82, bolt 83, third coiled pipe 9, elastic bag 91, drive groove 92, drive rod 93, rotating groove 94, rotating block 95, first torsion spring 96, lower groove 97, air vent 98, cross bar 99, second torsion spring 991. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figures 1 to 9 As shown, the present invention includes the following embodiments:

[0031] Embodiment 1: A centralized liquid heating platform comprises a lower box body 1 and a control box 2 above the lower box body 1; a lower box door 11 is provided on the front side of the lower box body 1; a plurality of liquid heaters 3 are installed in the lower box body 1 through a mounting plate 31 and are connected in series; the bottoms of the plurality of liquid heaters 3 are connected to the outside of the lower box body 1 through a fourth coiled pipe 4 and a fourth joint 41; the liquid inlet joints 32 and the liquid outlet joints 33 of the plurality of liquid heaters 3 are connected in series through a second coiled pipe 5; both ends of the second coiled pipe 5 are connected to the outside of the lower box body 1 through a second joint 51; a first coiled pipe 6 is provided directly above the plurality of liquid heaters 3; one end of the first coiled pipe 6 is connected to the second The liquid outlet ends of the two coiled pipes 5 are connected; the first coiled pipe 6 and the second coiled pipe 5 are respectively connected in series with the upper and lower parts of the I-shaped valve 7; the lower part of the I-shaped valve 7 is connected in series with the front end of the liquid inlet joint 32 of the liquid heater 3; the interior of the I-shaped valve 7 is respectively an upper channel 71, a vertical channel 72 and a lower channel 73 from top to bottom; the liquid inlet end of the lower channel 73 is connected to the lower end of the vertical channel 72 and is provided with an oblique flow groove 74; the position where the lower end of the vertical channel 72 is connected to the lower channel 73 is movably sealed and connected to the valve core 8; the downward-moving valve core 8 can block the liquid outlet end of the lower channel 73, and the upward-moving valve core 8 can block the lower end of the vertical channel 72.

[0032] In this embodiment, a third coiled tube 9 is coiled just below the I-shaped valve 7; one end of the third coiled tube 9 is connected to the liquid inlet end of the second coiled tube 5; an elastic bag 91 is provided in the third coiled tube 9; a driving groove 92 is provided through the upper inner wall of the third coiled tube 9; a driving rod 93 is slidably connected in the driving groove 92; the upper end of the driving rod 93 passes through the bottom of the I-shaped valve 7 and is fixedly connected to the lower surface of the valve core 8; the driving rod 93 is slidably and sealedly connected to the I-shaped valve 7; the lower end of the driving rod 93 rests on the outer wall of the elastic bag 91 inside the third coiled tube 9.

[0033] After the liquid heating platform is connected to the corresponding equipment that requires liquid heating, the liquid is pressurized under the action of the liquid pump and enters the second coiled pipe 5 along one of the second joints 51. After the liquid is fed into the liquid inlet end of the second coiled pipe 5, the liquid will enter the liquid inlet end of the lower channel 73 of the first I-shaped valve 7 along the inner side of the second coiled pipe 5. After the liquid enters the liquid inlet end of the second coiled pipe 5, the liquid will enter the third coiled pipe 9. The liquid will expand the elastic bag 91 in the third coiled pipe 9. The greater the pressure of the liquid to be heated, the more elastic the bag 91 will be. The longer the expanded length is, the elastic bag 91 is an elastic bag, and one end is open and the other end is closed. During the expansion process of the elastic bag 91, the driving rod 93 is squeezed and slid upward along the driving groove 92. The valve cores 8 in the first and second I-shaped valves 7 are opened, and the other valve cores 8 are not opened. The description is made. The number of liquid heaters 3 in the lower box 1 is customized according to demand. Taking four liquid heaters 3 as an example, the valve core 8 in the first I-shaped valve 7 will enter the vertical position of the first I-shaped valve 7 after moving upward. In the channel 72, the liquid inlet end and the liquid outlet end of the lower channel 73 in the first I-shaped valve 7 are connected, and the lower channel 73 in the first I-shaped valve 7 is disconnected from the vertical channel 72. In this way, after the liquid is added to the liquid inlet end of the second coiled pipe 5, the liquid flows along the lower channel 73 of the first I-shaped valve 7 into the first liquid heater 3. The heating wire inside the first liquid heater 3 works to heat the liquid. After the liquid is heated, it flows out along the liquid outlet joint 33 of the first liquid heater 3 to the liquid inlet end of the lower channel 73 of the second I-shaped valve 7. After the valve core 8 in the I-shaped valve 7 moves upward, it will enter the corresponding vertical channel 72, so that the liquid inlet end and the liquid outlet end of the lower channel 73 of the second I-shaped valve 7 are connected, and the lower channel 73 of the second I-shaped valve 7 is disconnected from the vertical channel 72, so that the liquid will enter the second liquid heater 3 along the lower channel 73 in the second I-shaped valve 7, and the second liquid heater 3 will continue to heat the liquid inside. After the liquid is heated, it will enter the liquid inlet end of the lower channel 73 of the third I-shaped valve 7 along the liquid outlet joint 33 of the second liquid heater 3.

[0034] Since the valve core 8 in the lower channel 73 of the third I-shaped valve 7 is in the lower limit position, the liquid inlet end and the liquid outlet end of the lower channel 73 in the third I-shaped valve 7 are disconnected, and the liquid inlet end of the lower channel 73 in the third I-shaped valve 7 is connected to the vertical channel 72. The liquid will enter the first coiled pipe 6 along the liquid inlet end of the lower channel 73 of the third I-shaped valve 7, the oblique flow groove 74, the vertical channel 72, and the upper channel 71. In this way, the liquid will pass through the third liquid heater 3 and the fourth liquid heater 3, and finally be discharged along the liquid outlet end of the second coiled pipe 5. In order to prevent the liquid from flowing back to the third liquid heater 3 and the fourth liquid heater 3, a liquid inlet check valve is provided at the liquid inlet end of the lower channel 73 in the I-shaped valve 7. The heated liquid finally flows out along the liquid outlet end of the second coiled pipe 5 and the other second joint 51.

[0035] During this process, if the flow rate of the liquid to be heated increases, the number of the original liquid heaters 3 activated does not meet the heating demand, and the inner cross-section of the second coiled tube 5 is limited, so that the liquid pressure in the second coiled tube 5 will increase. After the increased liquid pressure is transmitted to the inside of the elastic bag 91, the expansion length of the elastic bag 91 increases, and the valve core 8 in the third I-shaped valve 7 moves upward; if the flow rate of the liquid to be heated decreases, the number of the original liquid heaters 3 activated is too large, the liquid pressure in the second coiled tube 5 will decrease, the expansion length of the elastic bag 91 will decrease, that is, it will shrink, and the valve core 8 in the second I-shaped valve 7 will move down and reset; in this way, the number of liquid heaters 3 activated is adapted to the flow rate of the liquid to be heated, thereby meeting the heating requirements of different liquid flow rates. In addition, the liquid can pass over the unactivated liquid heaters 3. Without passing through the unactivated liquid heaters 3, the unactivated liquid heaters 3 will be protected, thereby extending the service life of the heating platform.

[0036] The fourth coiled pipe 4 in this embodiment is used to collect and discharge the liquid flowing out of the drain joint at the bottom of the liquid heater 3, so that no liquid will remain inside the liquid heater 3. The drain joint is in a closed state during the operation of the liquid heater.

[0037] Embodiment 2: The upper surface of the valve core 8 is connected to the valve seat 82 via a spring 81; the valve seat 82 is located in the vertical channel 72 and is strip-shaped; the elastic force of the multiple springs 81 increases sequentially in the direction of liquid flow in the second coiled pipe 5; the upper surface of the valve seat 82 is rotatably connected to a bolt 83; the upper end of the bolt 83 passes through the top of the I-shaped valve 7 and is threadedly sealed with the I-shaped valve 7.

[0038] In this embodiment, the outer edge diameter of the spring 81 is smaller than the inner diameter of the vertical channel 72 ; a gap is left between the outer edge of the spring 81 and the inner wall of the vertical channel 72 .

[0039] Different types of liquids have different heating efficiencies. Before using the heating platform for heating, open the lower box door 11 on the front side of the lower box body 1, and tightening the bolt 83 will drive the valve seat 82 to move down or up. During the upward movement of the valve seat 82, the distance from the valve seat 82 to the drive groove 92 increases, which increases the initial expansion degree of the spring 81 and reduces the pressing force of the spring 81 on the valve core 8. In this way, the drive rod 93 requires a smaller force to drive the valve core 8 to move upward, and the upward movement of the drive rod 93 is achieved by relying on the liquid pressure inside the elastic bag 91 to drive the elastic bag 91 to expand and bulge. Therefore, the liquid pressure of the liquid to be heated will also trigger the drive rod 93 to drive the valve core 8 to move upward when it is relatively small, thereby improving the opening sensitivity of the liquid heater 3.

[0040] It should be noted that the liquid heater 3 will work when it determines that liquid has entered the interior, or it will work after detecting that the valve core 8 has moved up, and the specific setting is based on the needs; in the process of tightening the bolt 83 to drive the valve seat 82 to move downward, the distance between the valve seat 82 and the drive groove 92 is reduced, so that the initial expansion degree of the spring 81 is reduced, and the pressing force of the spring 81 on the valve core 8 is increased, so that the driving rod 93 needs a greater force to drive the valve core 8 to move upward, so that the liquid pressure of the liquid to be heated can trigger the driving rod 93 to move upward under greater conditions, so that the opening sensitivity of the liquid heater 3 is reduced. Therefore, by adjusting the pressing force of the spring 81 on the valve core 8, the force with which the valve core 8 is triggered is changed, thereby changing the opening sensitivity of the liquid heater 3 to meet different types of liquid heating needs.

[0041] In this embodiment, when the valve seat 82 is close to the extreme position of the valve core 8, that is, when the spring 81 is fully compressed, the valve core 8 cannot move upward, so that the corresponding liquid heater 3 is completely closed. This can meet the need to close some damaged liquid heaters 3, so as to avoid damage to one of the multiple liquid heaters 3 connected in series, resulting in the heating platform being unusable; the valve seat 82 is strip-shaped and will not affect the flow of liquid in the vertical channel 72. There is a gap between the outer edge of the spring 81 and the inner wall of the vertical channel 72, which will not affect the flow of liquid.

[0042] Example 3: The cross-section of the driving rod 93 is rectangular; a rotation groove 94 is provided on the lower outer wall of the driving rod 93; a rotating block 95 is rotatably connected in the rotation groove 94; the rotating block 95 forms a whole with the outer surface of the driving rod 93 before rotation; the rotating block 95 is staggered with the outer surface of the driving rod 93 after rotation.

[0043] In this embodiment, the rotating groove 94 is rotatably connected to the rotating block 95 via a first torsion spring 96 ; a lower groove 97 is provided on the upper end of the driving groove 92 facing downward; and the rotating block 95 can be inserted into the lower groove 97 .

[0044] When the corresponding liquid heater 3 needs to be normally opened, it is only necessary to move the driving rod 93 upward. The upward movement of the driving rod 93 will drive the valve core 8 to move upward, and the valve core 8 will enter the corresponding vertical channel 72, so that the liquid inlet and liquid outlet ends of the horizontally placed lower channel 73 are connected, so that the corresponding liquid heater 3 is activated. During the upward movement of the driving rod 93, the rotating block 95 will be driven to move upward. In the initial state, the rotating block 95 is located inside the third coil pipe 9. Before the rotating block 95 rotates, it is located in the rotating groove 94, which will form a whole with the outer wall of the driving rod 93. , so that the rotating block 95 can move up smoothly with the driving rod 93 and pass through the driving groove 92, and the rotating block 95 will move out of the driving groove 92 to the top of the driving groove 92 along with the driving rod 93, and then the rotating block 95 is controlled to rotate ninety degrees and the driving rod 93 is released. The driving rod 93 moves downward under the action of the upper spring 81. During the downward movement of the driving rod 93, the rotating block 95 will be driven to vertically press against the upper end of the driving groove 92, so that the driving rod 93 is restricted and cannot move downward, so that the corresponding valve core 8 cannot move in the vertical channel 72, thereby realizing the normally open state of the corresponding liquid heater 3.

[0045] In order to further improve the stability of the downward movement restriction of the driving rod 93, a lower groove 97 is provided at the upper end position of the driving groove 92. The lower groove 97 intersects with the driving groove 92 in a top projection. In this way, after the rotating block 95 is stuck in the lower groove 97, the rotating block 95 cannot rotate, which is more stable and improves the stability of the downward movement restriction of the driving rod 93. In addition, after the rotating block 95 is moved out of the lower groove 97, the first torsion spring 96 will drive the rotating block 95 to automatically reset, so that the rotating block 95 and the driving rod 93 form a whole again, so that the driving rod 93 can pass back and forth through the driving groove 92 more smoothly.

[0046] Example 4: A ventilation hole 98 is provided on the upper portion of the outer wall of the third coiled tube 9 .

[0047] When the heated liquid enters the elastic bladder 91, it expands. During the expansion of the elastic bladder 91, the gas between the outer wall of the elastic bladder 91 and the inner wall of the third coiled tube 9 is discharged through the air vents 98. Due to the limited diameter of the air vents 98, the speed at which the gas between the inner wall of the third coiled tube 9 and the outer wall of the elastic bladder 91 is discharged along the air vents 98 is limited, thus limiting the expansion speed of the elastic bladder 91. In addition, when the liquid pressure in the elastic bladder 91 decreases, the elastic bladder 91 will deflate. During the deflation of the elastic bladder 91, external gas will enter through the air vents 98 between the outer wall of the elastic bladder 91 and the inner wall of the third coiled tube 9. Due to the limited diameter of the air vents 98, the gas replenishment speed between the inner wall of the third coiled tube 9 and the outer wall of the elastic bladder 91 is limited, thus limiting the deflation speed of the elastic bladder 91. This slows down the upward or downward movement of the driving rod 93, thereby preventing the liquid heater 3 from being frequently opened and closed due to unstable liquid pressure in the elastic bladder 91, thereby protecting the liquid heater 3.

[0048] Example 5: The driving rod 93 is connected to a cross bar 99 at its lower end; the cross bar 99 is located inside the third coiled tube 9 and abuts against the outer wall of the elastic bag 91.

[0049] In this embodiment, the middle section of the crossbar 99 is rotationally connected to the lower end of the driving rod 93 via a second torsion spring 991 .

[0050] When liquid enters the elastic sac 91, the elastic sac 91 will expand. The expansion and contraction principle of the elastic sac 91 can be understood as the balloon principle. The sac wall of the elastic sac 91 can increase as it moves away from the liquid inlet. During the expansion of the elastic sac 91, the cross bar 99 will be squeezed to move upward. The cross bar 99 has a certain span, which expands the contact area between the driving rod 93 and the elastic sac 91, so that the driving rod 93 can be triggered stably. In addition, since the cross bar 99 increases the contact area between the driving rod 93 and the outer wall of the elastic sac 91, the friction damage between the driving rod 93 and the outer wall of the elastic sac 91 is reduced, thereby improving the use of the elastic sac 91. During the service life, the cross bar 99 will overcome the rotation of the second torsion spring 991 during the expansion and upward movement of the elastic bag 91, and finally the cross bar 99 will move up to the upper position of the inner wall of the third coiled tube 9; and in the process of the elastic bag 91 shrinking, the driving rod 93 will move down, and the driving rod 93 will drive the cross bar 99 to move down during the downward movement. During the downward movement of the cross bar 99, it will rotate under the action of the second torsion spring 991, and the cross bar 99 will be pressed obliquely on the outer wall of the elastic bag 91, so that the liquid in the elastic bag 91 is squeezed out more thoroughly; in this embodiment, through the arrangement of the cross bar 99, the driving rod 93 is more stable as the elastic bag 91 expands or contracts.

[0051] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A centralized liquid heating platform, comprising a lower box and a control box above the lower box; wherein: The liquid inlet joints and liquid outlet joints of multiple liquid heaters are connected in series through a second coiled pipe; both ends of the second coiled pipe are connected to the outer side of the lower box body through a second joint; a first coiled pipe is provided directly above the multiple liquid heaters; one end of the first coiled pipe is connected to the liquid outlet end of the second coiled pipe; the first coiled pipe and the second coiled pipe are connected in series with the upper and lower parts of the I-shaped valve respectively; the lower part of the I-shaped valve is connected in series to the liquid inlet joint of the liquid heater; the interior of the I-shaped valve comprises an upper channel, a vertical channel and a lower channel from top to bottom; the liquid inlet end of the lower channel and the lower end of the vertical channel are provided with an oblique flow groove; the lower end of the vertical channel is connected to the valve core in an upper and lower movably sealed manner at the position where it is connected to the lower channel; the downward-moving valve core can block the liquid outlet end of the lower channel, and the upward-moving valve core can block the lower end of the vertical channel; A third coiled tube is coiled directly below the I-shaped valve; one end of the third coiled tube is connected to the liquid inlet end of the second coiled tube; an elastic bag is provided in the third coiled tube; a driving groove is provided through the upper inner wall of the third coiled tube; a driving rod is slidably connected in the driving groove; the upper end of the driving rod passes through the bottom of the I-shaped valve and is fixedly connected to the lower surface of the valve core; the driving rod is slidably and sealingly connected to the I-shaped valve; the lower end of the driving rod abuts against the outer wall of the elastic bag inside the third coiled tube; The upper surface of the valve core is connected to the valve seat via a spring; the upper surface of the valve seat is rotatably connected to a bolt; the upper end of the bolt passes through the top of the I-shaped valve and is sealed with the I-shaped valve thread; The cross-section of the driving rod is rectangular; a rotation groove is provided on the lower outer wall of the driving rod; a rotating block is rotatably connected in the rotation groove; the rotating block forms a whole with the outer surface of the driving rod before rotation; the rotating block is staggered with the outer surface of the driving rod after rotation; the rotation groove is rotationally connected to the rotating block through a first torsion spring; a lower groove is provided on the upper end of the driving groove facing downward; the rotating block can be stuck in the lower groove.

2. A centralized liquid heating platform according to claim 1, characterized in that: The outer edge diameter of the spring is smaller than the inner diameter of the vertical channel.

3. The centralized liquid heating platform according to claim 1, characterized in that: An air vent is provided on the upper portion of the outer wall of the third coiled pipe.

4. The centralized liquid heating platform according to claim 1, characterized in that: The lower end of the driving rod is connected to a cross bar; the cross bar is located inside the third coiled tube and abuts against the outer wall of the elastic bag.

5. The centralized liquid heating platform according to claim 4, characterized in that: The middle section of the crossbar is rotationally connected to the lower end of the driving rod through a second torsion spring.

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