A dual-energy heating type non-scaling hot water storage tank

Abstract

The present invention belongs to the technical field of water storage tanks, and discloses a dual-energy heating type non-scaling water storage tank, the water storage tank comprises a heating tank, and an insulation layer is arranged on the inner wall of the heating tank; a heat exchange tube runs through the interior of the heating tank, and the two ends of the heat exchange tube are respectively connected to a cold water pipe and a hot water pipe, so as to conduct the tap water to be heated; an inherent liquid is stored in the heating tank, and part of the pipe of the heat exchange tube is immersed in the inherent liquid, and the inherent liquid is softened water; a heating device is also installed in the heating tank, and the heating device is located in the inherent liquid to heat the inherent liquid; in summary, the present invention utilizes the cooperation of heating the inherent liquid and the heat exchange tube to realize the heating and temperature raising of the tap water, so as to meet the function of heating the water tank; and in the above process, the heated tap water neither contacts the heating device nor contacts the inner wall of the water tank, thereby effectively avoiding the problem of scale in the water tank.

Description

Technical Field

[0001] The invention belongs to the technical field of hot water storage tanks, and in particular relates to a dual-energy heating type non-scaling hot water storage tank. Background Art

[0002] In the prior art, most pressurized hot water storage tanks are used. When in use, the pressurized hot water storage tanks are pressed out based on the tap water pressure, which causes the water tank to suffer from pressure corrosion, thus affecting the service life of the water tank.

[0003] In addition, when using a heat storage tank to heat tap water, a large amount of scale will be produced due to the high temperature reaction. If the heated tap water is not discharged in time, the scale produced will be left to settle and adhere to the heating device of the water tank or settle at the bottom of the water tank, thereby breeding bacteria, polluting water quality, and damaging human health; and the scale attached to the heating device will gradually wrap up the entire heating device, thereby affecting the heating efficiency, and even causing the heating device to burn out due to excessive temperature, affecting the normal use of the entire heat storage tank. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a dual-energy heating type non-scaling water storage tank to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a dual-energy heating type non-scaling water storage tank, the water storage tank comprises a heating tank, and an insulation layer is provided on the inner wall of the heating tank;

[0006] The heating box is provided with a heat exchange pipe running through the interior thereof, and the two ends of the heat exchange pipe are respectively connected to a cold water pipe and a hot water pipe for conducting tap water to be heated;

[0007] The heating box contains an inherent liquid, and part of the heat exchange pipe is immersed in the inherent liquid, wherein the inherent liquid is softened water;

[0008] A heating device is also installed in the heating box, and the heating device is located in the inherent liquid to heat the inherent liquid; the heating device includes a photovoltaic heating structure and a commercial power heating structure;

[0009] The heating box is also equipped with an air pipe and a one-way liquid replenishment tube, wherein the air pipe is used to discharge air or water vapor in the heating box, and the one-way liquid replenishment tube is used to replenish the inherent liquid in the heating box.

[0010] Preferably, the heat storage tank also includes a circulation tank, and the circulation tank includes a liquid storage part and an air pressure buffer part, the liquid storage part is located below the air pressure buffer part, and the liquid storage part stores inherent liquid; the air outlet end of the air pipe extends into the liquid storage part, the liquid inlet end of the one-way liquid infusion tube extends into the air pressure buffer part, and the one-way liquid infusion tube is composed of a liquid infusion tube and a one-way valve installed in the liquid infusion tube.

[0011] Preferably, the air pressure buffer portion is located above the heating box, and the one-way liquid infusion tube and the air pipe are both installed on the top of the heating box.

[0012] Preferably, a gas pressure buffer device is also installed in the gas pressure buffer part, and the gas pressure buffer device includes a piston and an exhaust pipe. The piston is located between the exhaust pipe and the one-way liquid replenishing pipe, and reciprocates based on the change of gas pressure in the circulation box.

[0013] Preferably, the air pressure buffer device also includes an overpressure protection switch, and the overpressure protection switch is located on one side of the exhaust pipe, and when the piston presses the overpressure protection switch, the overpressure protection of the hot water storage tank is executed.

[0014] Preferably, the heat exchange pipe comprises a hot water outlet pipe and a cold water inlet pipe which are connected to each other, and the cold water inlet pipe is located in the circulation box, and the hot water outlet pipe is located in the heating box.

[0015] Preferably, the gas pipe includes a high-temperature inlet pipe and a condensation outlet pipe which are connected to each other, and one end of the high-temperature inlet pipe is connected to the heating box, and one end of the condensation outlet pipe extends into the liquid storage part.

[0016] Preferably, a preheating sleeve is also installed in the air pressure buffer part, and a heat exchange plate is provided in the preheating sleeve. The interior of the preheating sleeve is divided into two equally divided sub-cavities based on the heat exchange plate, and circular connecting sleeves are opened at both ends of the two sub-cavities; the two ends of one of the sub-cavities are respectively connected to the hot water outlet pipe and the cold water inlet pipe; the two ends of the other sub-cavity are respectively connected to the high-temperature inlet pipe and the condensation outlet pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) In the present invention, a heat exchange tube for conducting tap water is provided in the water tank, a permanent liquid is filled outside the heat exchange tube, and a heating device is provided in the permanent liquid, thereby heating the tap water by heating the permanent liquid in conjunction with the heat exchange tube to meet the function of heating the water tank; and in the above process, the heated tap water neither contacts the heating device nor contacts the inner wall of the water tank, thereby effectively avoiding the problem of scale in the water tank.

[0019] (2) For the above-mentioned heat exchange tubes, corrugated tubes or serpentine tubes can be used to increase the heat exchange efficiency between them and the inherent liquid; and tap water is not stored in the heat exchange tubes, so that the overall water tank forms an open structure. On the one hand, based on the continuous flow of tap water, scale is avoided in the heat exchange tubes. On the other hand, the overall water tank does not need to discharge water under pressure, thereby avoiding the problem of pressure corrosion and achieving the effect of extending the service life of the water tank.

[0020] (3) The above-mentioned water tank includes a heating box and a circulation box. The circulation box is used to store unheated inherent liquid and also to receive the water vapor generated when the heating box is heated. The water vapor is passed into the unheated inherent liquid based on the air pipe, thereby realizing condensation and recovery of the water vapor. In addition, based on the above-mentioned recovery, the liquid level in the circulation box rises, and then the condensed inherent liquid flows back to the heating box. In summary, the water tank has the advantages of stable air pressure and no need to add inherent liquid.

[0021] (4) Preheating sleeves are provided corresponding to the above-mentioned heat exchange pipes and air pipes to realize heat exchange between water vapor and unheated tap water. On the one hand, the tap water is preheated to achieve energy saving effect. On the other hand, the preliminary condensation of water vapor is realized to reduce the temperature in the circulation box and improve the condensation efficiency of water vapor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the preheating sleeve in the present invention;

[0024] Figure 3 for Figure 2 A-axis sectional view;

[0025] Figure 4 for Figure 2 Middle B-direction sectional view;

[0026] In the figure: 1-heating box, 2-insulation layer, 3-heating device, 4-heat exchange tube, 41-hot water outlet pipe, 42-cold water inlet pipe, 5-circulation box, 51-liquid storage part, 52-air pressure buffer part, 6-preheating sleeve, 61-connecting sleeve, 62-heat exchange plate, 63-dividing chamber, 7-air pipe, 71-high temperature inlet pipe, 72-condensation outlet pipe, 8-piston, 9-exhaust pipe, 10-one-way liquid replenishing pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-Figure 4 As shown, the technical solution provided by this embodiment is: a dual-energy heating type non-scaling hot water storage tank, the hot water storage tank comprises a heating tank 1, and an insulation layer 2 is provided on the inner wall of the heating tank 1;

[0030] A heat exchange pipe 4 runs through the interior of the heating box 1, and both ends of the heat exchange pipe 4 are respectively connected to a cold water pipe and a hot water pipe to conduct tap water to be heated;

[0031] The heating box 1 stores inherent liquid, and part of the heat exchange tube 4 is immersed in the inherent liquid. The inherent liquid is softened water, so that it can be ensured that the inherent liquid will not have scale after heating;

[0032] A heating device 3 is also installed in the heating box 1, and the heating device 3 is located in the inherent liquid to heat the inherent liquid; the heating device 3 includes a photovoltaic heating structure and a mains heating structure, based on which the overall hot water storage tank is dual-energy heated;

[0033] An air pipe 7 and a one-way liquid replenishing pipe 10 are also installed on the heating box 1 , wherein the air pipe 7 is used to discharge the air or water vapor in the heating box 1 , and the one-way liquid replenishing pipe 10 is used to replenish the inherent liquid in the heating box 1 .

[0034] In this embodiment, the working principle of the integral hot water storage tank is:

[0035] Based on the start-up of the heating device 3, the inherent liquid (softened water) in the heating box 1 is heated to increase the temperature, and then the tap water to be heated is introduced through one end of the heat exchange tube 4. The tap water exchanges heat with the inherent liquid in the heat exchange tube 4, thereby heating and heating the tap water, and the heated tap water is exported through the other end of the heat exchange tube 4. Specifically, the heat exchange tube 4 can be a corrugated tube or a serpentine tube to increase the contact area between the heat exchange tube 4 and the inherent liquid, thereby improving the heat exchange efficiency when heating the tap water.

[0036] In the above process, since the inherent liquid is softened water, no scale will appear after heating, so that the problem of scale precipitation will not appear on the inner wall of the heating box 1 and the heating device 3; and in the heat exchange tube 4, the water flow keeps flowing continuously, so the problem of scale precipitation will not appear; in summary, in the hot water storage tank provided by the present invention, the scale problem can be effectively solved.

[0037] Example 2

[0038] See also Figure 1-Figure 4 As shown, the technical solution provided by this embodiment is: a dual-energy heating type non-scaling hot water storage tank, the hot water storage tank includes a heating tank 1 and a circulation tank 5, wherein the structure of the heating tank 1 is the same as that of the embodiment 1, and the circulation tank 5 includes: a liquid storage part 51 and an air pressure buffer part 52, the liquid storage part 51 is located below the air pressure buffer part 52, and the liquid storage part 51 stores inherent liquid;

[0039] In this embodiment, the air outlet end of the air pipe 7 extends into the liquid storage part 51, the liquid inlet end of the one-way liquid infusion tube 10 extends into the air pressure buffer part 52, and the one-way liquid infusion tube 10 is composed of a liquid infusion tube and a one-way valve installed in the liquid infusion tube.

[0040] The above-mentioned liquid storage part 51 and air pressure buffer part 52 are combined with Figure 1 Specifically, it means that a certain amount of inherent liquid is stored in the circulation box 5, but the inherent liquid does not fill the circulation box 5. At this time, the area below the liquid level of the inherent liquid is the liquid storage part 51, and the area above the liquid level of the inherent liquid is the air pressure buffer part 52.

[0041] Based on this, the working principle of this embodiment is:

[0042] When the heating box 1 performs the heating described in Example 1, the temperature of the inherent liquid in the heating box 1 gradually increases, thereby generating a certain amount of water vapor, which flows into the liquid storage part 51 through the air pipe 7, while the inherent liquid stored in the liquid storage part 51 is not heated (the temperature is relatively low), thereby effectively realizing the rapid condensation of the water vapor, thereby realizing the recovery of the water vapor;

[0043] After the water vapor is condensed and recovered, it forms an inherent liquid again and remains in the liquid storage part 51, thereby causing the liquid level of the inherent liquid in the circulation box 5 to rise until the liquid level submerges the one-way liquid replenishment tube 10. Based on the one-way liquid replenishment tube 10, the inherent liquid is refluxed, that is, the liquid replenishment operation is performed to the heating box 1.

[0044] In the above overall process, the stability of the air pressure in the hot water storage tank is effectively guaranteed, and there is no need to add additional inherent liquid.

[0045] In this embodiment, as a further preferred implementation, the air pressure buffer portion 52 is located above the heating box 1 , and the one-way liquid infusion tube 10 and the air pipe 7 are both installed on the top of the heating box 1 .

[0046] Based on this, in this embodiment, after the liquid level in the circulation box 5 rises, its inherent liquid can flow back to the heating box 1 based on its own gravity, so there is no need to set up other reflux driving equipment, which improves the rationality of the overall structure and achieves energy-saving effects.

[0047] Example 3

[0048] This embodiment is a further preferred scheme of Embodiment 2. Specifically, an air pressure buffer device is also installed in the air pressure buffer section 52, and the air pressure buffer device includes a piston 8 and an exhaust pipe 9. The piston 8 is located between the exhaust pipe 9 and the one-way fluid replenishment tube 10, and moves back and forth based on the air pressure changes in the circulation box 5.

[0049] Based on this, in this embodiment, the air pressure buffer portion 52 can be isolated from the outside air, so that when the water vapor is not condensed in time, it will not cause the water vapor to leak out, while still ensuring the stability of the air pressure in the overall hot water storage tank.

[0050] Specifically, its working principle is:

[0051] When the water vapor does not condense in time, Figure 1 The air pressure in the right area of ​​the piston 8 increases, thereby pushing the piston 8 to move to the left (i.e., close to the exhaust pipe 9), so that the air in the left area of ​​the piston 8 is discharged through the exhaust pipe 9, ensuring the stability of the air pressure in the overall circulation box 5, while the water vapor in the right area of ​​the piston 8 will not leak out;

[0052] When the water vapor is completely condensed, Figure 1 The air pressure in the right area of ​​the middle piston 8 decreases, thereby negatively sucking the piston 8, causing the piston 8 to move to the right, completing the reset.

[0053] In this embodiment, as a further preferred implementation, the air pressure buffer device also includes an overpressure protection switch, and the overpressure protection switch is located on one side of the exhaust pipe 9. When the piston 8 presses the overpressure protection switch, the overpressure protection of the hot water storage tank is executed.

[0054] Based on this, in this embodiment, if the temperature of the entire inherent liquid is high due to the above-mentioned cycle, it will affect the timely condensation of water vapor. In this case, the heating temperature formed by the entire hot water storage tank is also high; at this time, the piston 8 presses the overpressure protection switch to the left based on the increase in air pressure, thereby achieving power failure of the entire hot water storage tank, thereby forming overpressure protection for the hot water storage tank and over-temperature protection for the hot water storage tank, thereby improving the safety of the overall water tank.

[0055] Example 4

[0056] This embodiment is a further preferred embodiment of Embodiment 2 or Embodiment 3, specifically:

[0057] The heat exchange pipe 4 includes a hot water outlet pipe 41 and a cold water inlet pipe 42 which are connected to each other, and the cold water inlet pipe 42 is located in the circulation box 5 , and the hot water outlet pipe 41 is located in the heating box 1 .

[0058] The gas pipe 7 includes a high-temperature inlet pipe 71 and a condensation outlet pipe 72 which are connected to each other, and one end of the high-temperature inlet pipe 71 is connected to the heating box 1 , and one end of the condensation outlet pipe 72 extends into the liquid storage part 51 .

[0059] A preheating sleeve 6 is also installed in the air pressure buffer portion 52, and the structure of the preheating sleeve 6 is as follows: Figure 2-Figure 4 As shown: a heat exchange plate 62 is provided in the preheating sleeve 6, and the interior of the preheating sleeve 6 is divided into two equally divided sub-cavities 63 based on the heat exchange plate 62, and circular connecting sleeves 61 are opened at both ends of the two sub-cavities 63; the two ends of one of the sub-cavities 63 are respectively connected to the hot water outlet pipe 41 and the cold water inlet pipe 42; the two ends of the other sub-cavity 63 are respectively connected to the high-temperature inlet pipe 71 and the condensation outlet pipe 72.

[0060] In this embodiment, based on the setting of the preheating sleeve 6, preliminary heat exchange is formed when water vapor is discharged and tap water is introduced, so as to increase the tap water temperature and reduce the water vapor temperature, thereby achieving the effects of tap water preheating and water vapor precooling.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-energy heating non-scaling water storage tank, characterized in that: The hot water storage tank comprises a heating box (1), and a heat-insulating layer (2) is provided on the inner wall of the heating box (1); A heat exchange pipe (4) runs through the interior of the heating box (1), and two ends of the heat exchange pipe (4) are respectively connected to a cold water pipe and a hot water pipe for conducting tap water to be heated; The heating box (1) stores an inherent liquid, and part of the heat exchange pipe (4) is immersed in the inherent liquid, wherein the inherent liquid is softened water; the heat exchange pipe (4) is a corrugated pipe or a serpentine pipe; A heating device (3) is also installed in the heating box (1), and the heating device (3) is located in the inherent liquid to heat the inherent liquid; the heating device (3) comprises a photovoltaic heating structure and a mains heating structure; The heating box (1) is also provided with an air pipe (7) and a one-way liquid replenishing pipe (10), wherein the air pipe (7) is used to discharge air or water vapor in the heating box (1), and the one-way liquid replenishing pipe (10) is used to replenish inherent liquid in the heating box (1); the hot water storage tank also includes a circulation box (5), and the circulation box (5) includes a liquid storage portion (51) and an air pressure buffer portion (52), the liquid storage portion (51) is located below the air pressure buffer portion (52), and inherent liquid is stored in the liquid storage portion (51); The air outlet end of the air pipe (7) extends into the liquid storage part (51), the liquid inlet end of the one-way liquid replenishment pipe (10) extends into the air pressure buffer part (52), and the one-way liquid replenishment pipe (10) is composed of a liquid replenishment pipe and a one-way valve installed in the liquid replenishment pipe; the air pressure buffer part (52) is located above the heating box (1), and the one-way liquid replenishment pipe (10) and the air pipe (7) are both installed on the top of the heating box (1); an air pressure buffer device is also installed in the air pressure buffer part (52), and the air pressure buffer device includes a piston (8) and an exhaust pipe (9), the piston (8) is located between the exhaust pipe (9) and the one-way liquid replenishment pipe (10), and reciprocates based on the air pressure change in the circulation box (5); the air pressure buffer device also includes an overpressure protection switch, and the overpressure protection switch is located on one side of the exhaust pipe (9), and when the piston (8) presses the overpressure protection switch, the overpressure protection of the hot water storage tank is executed.

2. A dual-energy heating non-scaling water storage tank according to claim 1, characterized in that: The heat exchange pipe (4) comprises a hot water outlet pipe (41) and a cold water inlet pipe (42) which are connected to each other, wherein the cold water inlet pipe (42) is located in the circulation box (5) and the hot water outlet pipe (41) is located in the heating box (1).

3. A dual-energy heating non-scaling water storage tank according to claim 2, characterized in that: The gas pipe (7) comprises a high-temperature inlet pipe (71) and a condensation outlet pipe (72) which are connected to each other, wherein one end of the high-temperature inlet pipe (71) is connected to the heating box (1), and one end of the condensation outlet pipe (72) extends into the liquid storage portion (51).

4. A dual-energy heating non-scaling water storage tank according to claim 3, characterized in that: A preheating sleeve (6) is also installed in the air pressure buffer portion (52), and a heat exchange plate (62) is provided in the preheating sleeve (6). The heat exchange plate (62) divides the interior of the preheating sleeve (6) into two equally divided chambers (63), and circular connecting sleeve openings (61) are provided at both ends of the two chambers (63); The two ends of one of the sub-cavities (63) are respectively connected to the hot water outlet pipe (41) and the cold water inlet pipe (42); the two ends of the other sub-cavity (63) are respectively connected to the high-temperature inlet pipe (71) and the condensation outlet pipe (72).

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