Energy saving kitchen / bathroom heater capable of recovering cool water in pipe

Abstract

To provide an energy saving kitchen / bathroom heater which is applied to a heater technology field and can avoid increase of pipe arrangement and a maintenance cost.SOLUTION: An energy saving kitchen / bathroom heater includes a hot water combination pipe formed by a metal hose and an internal hot water guide pipe module inserted into the metal hose. The internal hot water guide pipe module includes an inlet pipe head, an internal hot water guide pipe module body, and a water inlet pipe tip. The hot water combination pipe body includes an outer tube, an inner tube, and an internal hot water guide pipe. The internal hot water guide pipe is formed of an elastomer material. The outer tube, the inner tube, and the internal hot water guide pipe are arranged in interposing relations to form one pipe. A wall surface of the internal hot water guide pipe is expanded or contracted by a water pressure to reuse cool water in a pipe having an arbitrary length in a case of one pipe.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of heating appliances, and more specifically to an energy-saving heater for kitchens and bathrooms that can recover cold water in pipes. [Background technology]

[0002] Boiler is a type of gas water heater, its working process is to release heat by burning gas, transfer the heat to cold water to make hot water. Gas water heater mainly consists of a plug assembly, a main burner, a small burner, a heat exchanger, a safety device, etc., but also includes a flue for flue type water heaters and a forced exhaust device for forced exhaust type water heaters.

[0003] In daily life, because the water heater is a certain distance from the faucet outlet, when it is not in use, the hot water will stay in the pipeline and become cold. For example, the gas water heater installed in the kitchen is located some distance away from the bathroom faucet and the balcony faucet, so when you use hot water, you have to drain the cold water from the pipe, which increases the waiting time for hot water and wastes water resources.

[0004] Although there are prior arts that solve the above problems, they do not completely solve the problems and are more or less problematic. For example, the Chinese patent "Water Heater and Its Pipeline Cold Water Recycling System" (No. CN106052134B) can solve the above problems to a certain extent, but it adopts the method of "water in the water tank flows into the hot water pipe, and the cold water in the hot water pipe flows into the water bag through the cold water circulation pipe." The closed loop formed by this method alternates between hot and cold water by directly contacting each other, so heat is transferred between the hot and cold water. In the case of long-distance transmission such as on a balcony, a large amount of hot water will transfer heat to the cold water, which will lengthen the waiting time for hot water cooling and waste water resources; although the Chinese patent "Water Heater Cold Water Recovery Device" (No. CN204787270U) can solve the above problems to a certain extent, it uses too many taps and pipelines, especially in the case of long-distance transmission such as on a balcony, which not only results in excessive buried equipment, but also increases the cost of using the pipeline and the maintenance cost.

[0005] To solve this problem, an energy-saving heater for kitchens and bathrooms that can recover cold water within the pipes was proposed to rationally solve the problem of long wait times for hot water and water being wasted because the water heater is far away from the faucet. Summary of the Invention [Means for solving the problem]

[0006] The objective of the present invention is to address the shortcomings of the prior art. In order to solve the problem that the water heater is installed some distance away from the water tap, which results in a long waiting time for hot water and waste of water resources, an energy-saving heater for kitchens and bathrooms with in-pipe cold water recovery is proposed.

[0007] An energy-saving kitchen / bathroom heater capable of recovering cold water in a pipe, comprising a pipe assembly retrofitted to a water heater body, the pipe assembly including a cold water pipe, a gas import pipe and a hot water export pipe; a hot water combination pipe is installed in the hot water export pipe, the hot water combination pipe is attached to the water heater body by a hot water connection pipe, the hot water combination pipe is composed of a metal hose and an internal hot water duct module inserted into the metal hose, The internal hot water conduit module includes a water inlet pipe end, an internal hot water conduit module body and a water outlet pipe end, and the water inlet pipe end and the water outlet pipe end are respectively attached to both ends of the internal hot water conduit module body; the internal hot water conduit module body includes an outer tube, an inner tube is installed inside the outer tube, and the internal hot water conduit is inserted inside the inner tube, the inner tube is made of an elastomer material, and its inner and outer surfaces are covered with a heat insulating material layer; the internal space of the internal hot water conduit forms water tank I, and the space between the inner tube and the internal hot water conduit forms water tank II; After the hot water enters the internal hot water conduit module, the end of the water-filled pipe distributes the hot water to the internal hot water conduit, and the hot water passes through the water tank I. The elastic wall of the internal hot water conduit is pushed outward by the water pressure, and the water tank II is compressed, and the cold water is discharged from the water tank II, and the cold water is discharged from the inner tube and the internal hot water conduit, and the inner tube and the wall of the internal hot water conduit are pressed together, and the cold water in the water tank II is emptied, and the non-contact discharge and reuse of the cold water in the water flow mode I is completed. The end of the water-filled pipe distributes hot water between the inner tube and the internal hot water conduit, passes the hot water to the water tank II, and the elastic wall of the internal hot water conduit is pressed inward by the water pressure, compresses the water tank I, and discharges the cold water from the water tank I, pressing the walls of the internal hot water conduit together, emptying the cold water in the water tank I, completing the non-contact discharge and reuse of the cold water in the water flow mode II.

[0008] In use, since the internal hot water conduit is made of an elastomeric material, the wall of the internal hot water conduit can expand and contract under water pressure, and the water tank I formed in the internal space of the internal hot water conduit and the water tank II formed in the space between the internal hot water conduits can squeeze each other's internal cold water in the process of switching between them; by alternately using water flow mode I and water flow mode II, non-contact discharge and reuse of cold water is completed; the problem of the water heater being installed a short distance away from the water faucet, which results in a long waiting time for hot water and a waste of water resources is solved. In addition, since the hot water and cold water are directly in contact with each other and alternately switched, heat is transferred between the contacting hot water and cold water. In the case of long-distance transmission such as on a balcony, a large amount of hot water will transfer heat to the cold water, which avoids the problem of the hot water cooling causing a long waiting time for hot water and a waste of water resources. At the same time, the outer tube, outer tube and internal hot water conduit are interposed to form a single pipe, and combined with using water pressure to expand and contract the wall of the internal hot water conduit, it is possible to alternate between water flow modes 1 and 2.In the case of a single pipe, it is possible to achieve non-contact discharge of cold water for reuse with a pipe of any length, which ensures the amount of treated water while reducing the amount of construction work.In addition, since there is no need to increase the number of auxiliary piping systems, the amount of piping used can be reduced, and increases in piping usage and maintenance costs can be avoided.

[0009] In the technical solution of the present invention, the inlet pipe head includes a distribution pipe A and a scheduling pipe A, the distribution pipe A is connected to a connection pipe A at the end remote from the inner hot water conduit module body, and the connection pipe A is connected to a hot water connection pipe; One end of the scheduling pipe A is connected to the junction between the distribution pipe A and the connection pipe A, and the other end is connected to an inner tube, which is then connected to the water tank II.

[0010] Furthermore, the distribution pipe A is connected to the internal hot water pipe, and a solenoid valve A is attached to the distribution pipe A to turn on and off between the distribution pipe A and the internal hot water pipe, A stopper A is attached to the scheduling pipe A to switch on and off between the connecting pipe A and the water tank II.

[0011] In the technical solution of the present invention, the outlet header includes a scheduling pipe B and a distribution pipe B, the distribution pipe B is connected to the connecting pipe B at the end remote from the internal hot water conduit module body, the connecting pipe B is connected to the hot water export pipe, one end of the scheduling pipe B is connected to the junction between the distribution pipe B and the connecting pipe B, and the other end is connected to the inner tube and connected to the water tank II.

[0012] Furthermore, the distribution pipe B is connected to the internal hot water pipe, and a solenoid valve B is attached to the distribution pipe B to turn on and off between the distribution pipe B and the internal hot water pipe, A stopper B is attached to the scheduling pipe B to switch on and off between the connecting pipe B and the water tank II.

[0013] Preferably, the internal hot water duct module body is provided with a cold water recovery pipe module, which is used to discharge cold water discharged from the internal hot water combination duct body; The cold water recovery pipe module is connected to the cold water pipe via a cold water circulation pipe, and the cold water pipe is used to transport cold water to the cold water pipe for reuse.

[0014] The cold water recovery pipe module includes an export pipe A and an export pipe B, the export pipe A is connected to an inner tube and connected to a water tank II, and the export pipe B is connected to an inner hot water conduit and connected to a water tank I.

[0015] The export pipe A and the export pipe B are connected to a main pipe at the end remote from the internal hot water pipe module body, and the main pipe is connected to a cold water circulation pipe via a connection pipe C.

[0016] The export pipes A and B are fitted with solenoid valves C.

[0017] Gas is introduced into the water heater body as fuel through the gas import pipe, and is burned to release heat, which heats the cold water introduced through the cold water pipe. After the cold water becomes hot water, the hot water is discharged from the hot water export pipe, and in the process, the hot water enters the inlet pipe head of the internal hot water conduit module and first enters the inside of the connecting pipe A. At this time, the tap A is closed, the solenoid valve A is opened, the distribution pipe A and the internal hot water conduit are opened, the connecting pipe A and the water tank II are switched to the closed state, the hot water is distributed in the internal hot water conduit, and the hot water is passed through the water tank I. At this time, the tap B is closed, the solenoid valve B is opened, the distribution pipe B and the internal hot water conduit are opened, the connecting pipe B and the water tank II are switched to the closed state, and the hot water is introduced into the hot water export pipe through the connecting pipe B for use. During the process of passing hot water through water tank I, the elastic wall of the internal hot water conduit is pushed outward by the water pressure, water tank II is compressed, cold water is discharged from water tank II, solenoid valve ? is opened, export pipe A is in the open state, and export pipe B is in the closed state, and the cold water discharged from water tank II enters the inside of export pipe A, and then passes through the main pipe and connecting pipe ? into the inside of the cold water circulation pipe for reuse; the inner tube and the wall of the internal hot water conduit are squeezed together to empty the cold water in water tank II, completing the non-contact discharge and reuse of cold water in water flow mode I.

[0018] At the next use, the hot water enters the inlet pipe head of the internal hot water conduit module, and first enters the inside of the connecting pipe A. At this time, the tap A is opened, the solenoid valve A is closed, the distribution pipe A and the internal hot water conduit are closed, the connecting pipe A and the water tank II are switched to the open state, the inlet pipe head distributes the hot water between the inner pipe and the internal hot water conduit through the scheduling pipe A, and passes the hot water to the water tank II. At this time, the tap B is opened, the solenoid valve B is closed, the distribution pipe B and the internal hot water conduit are closed, the connecting pipe B and the water tank II are switched to the open state, and the hot water is introduced into the hot water export pipe through the connecting pipe B for use. During the process of passing hot water through tank I, the elastic wall of the internal hot water conduit is pressed inward by the water pressure, tank I is compressed, cold water is discharged from tank I, solenoid valve ? is opened, export pipe A is closed, and export pipe B is open, and the cold water discharged from tank I enters the inside of export pipe B, and then passes through the main pipe and connecting pipe ? into the inside of the cold water circulation pipe for reuse; the wall of the internal hot water conduit is squeezed to empty the cold water in tank I, completing the non-contact discharge and reuse of cold water in water flow mode II.

[0019] In the technical solution of the present invention, the inner tube is composed of a multi-unit inner tube and a multi-stage rubber hose, the multi-unit inner tube and the multi-stage rubber hose are arranged in a cross shape, and the outer wall of the rubber hose is fixed inside the outer tube; the unit inner tube is composed of an outer telescopic tube and an inner elastic tube inserted inside the outer telescopic tube; the outer telescopic tube is composed of a plurality of arc-shaped storage plates and a plurality of arc-shaped grid plates, and the plurality of arc-shaped storage plates and the plurality of arc-shaped grid plates are arranged in a circular cross shape; the arc-shaped storage plate is provided with slots, and the arc-shaped grid plate is inserted into the slots by the elasticity of the elastic spacer; the electromagnetic coil is attached to both sides of the surface of the arc-shaped storage plate, and by controlling the strength of the current, different magnetic adsorption forces are generated on both sides of the arc-shaped storage plate, and after the force balance with the elastic spacer is reached, the elasticity of the arc-shaped grid plate and the penetration degree in the slot are adjusted to realize the expansion and contraction adjustment of the radius of the self-pipe.

[0020] When the amount of water needs to be adjusted, different magnetic adsorption forces can be generated on both sides of the arc-shaped storage plate by controlling the strength of the current flow. After a balance of forces with the elastic spacer is reached, the elasticity of the arc-shaped grid plate and the penetration degree within the slot can be adjusted to realize the expansion and contraction adjustment of the radius of the self-pipe, thereby enabling adjustment of different water amounts. Effect of the Invention

[0021] Compared to conventional technology, this invention is an energy-saving kitchen and bathroom heater with in-pipe cold water recovery, which allows:

[0022] Since the internal hot water conduit is made of an elastomer material, the wall of the internal hot water conduit can expand and contract under water pressure, and the water tank I formed in the internal space of the internal hot water conduit and the water tank II formed in the space between the internal hot water conduit and the inner tube can squeeze out each other's internal cold water in the process of switching between them; By alternately using water flow mode I and water flow mode II, non-contact discharge and reuse of cold water is completed; This solves the problem of the water heater being installed a little away from the water faucet, which results in a long waiting time for hot water and a waste of water resources. In addition, since the hot water and cold water are directly in contact with each other and alternately switched, heat is transferred between the contacting hot water and cold water. In the case of long-distance transmission such as on a balcony, a large amount of hot water will transfer heat to the cold water, which avoids the problem of the cooling of hot water lengthening the waiting time for hot water and wasting water resources.

[0023] The outer tube, inner tube, and internal hot water conduit are interposed to form a single pipe, and combined with utilizing water pressure to expand and contract the wall of the internal hot water conduit, water flow mode I and water flow mode II can be used alternately. In the case of a single pipe, non-contact discharge of cold water for reuse can be achieved with a pipe of any length, which ensures the amount of treated water while reducing the amount of construction work. In addition, since there is no need to increase auxiliary piping, the amount of piping used can be reduced, and increases in piping usage and maintenance costs can be avoided.

[0024] By controlling the strength of the current, different magnetic adsorption forces are generated on both sides of the arc-shaped storage plate. After a balance of forces with the elastic spacer is reached, the elasticity of the arc-shaped grid plate and the penetration degree within the slot are adjusted, thereby realizing the expansion and contraction adjustment of the radius of the self-pipe and the adjustment of different water volumes. [Brief description of the drawings]

[0025] The present invention will now be further described with the aid of the accompanying drawings and examples. [Figure 1] This is a structural diagram of an energy-saving kitchen / bathroom heater that can recover cold water inside the pipes, which is the present invention. [Diagram 2] FIG. 2 is a front view of the present invention. [Diagram 3] FIG. 2 is a structural diagram of the pipe assembly in FIG. [Figure 4] FIG. 2 is a structural diagram of an internal hot water pipe module according to the present invention. [Diagram 5] FIG. 5 is an enlarged structural view of A in FIG. [Figure 6] FIG. 5 is an enlarged structural view of B in FIG. [Figure 7] FIG. 5 is an end view of the internal hot water conduit module body in FIG. 4. [Figure 8] FIG. 8 is a diagram illustrating the internal hot water conduit combination body in FIG. 7, which directs water through the lumen between the inner tube and the internal hot water conduit. [Figure 9] 8 is a diagram illustrating the internal hot water conduit combination body in FIG. 7 directing water through the inner tube and the internal hot water conduit. [Figure 10] FIG. 10 is a structural diagram of a cross section taken along the center line in the column direction of the internal hot water pipe module in FIG. 9. [Figure 11] FIG. 9 is a structural diagram of a cross section taken along the center line in the column direction of the internal hot water pipe module in FIG. 8. [Figure 12] FIG. 8 is a structural diagram of the inner tube in FIG. [Figure 13] FIG. 13 is an enlarged structural view of C in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and easier to understand, the present invention will be described in more detail in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only for the purpose of illustrating the present invention, and are not intended to limit the present invention. Based on the embodiments in the present invention, all other embodiments that can be obtained by those skilled in the art without creative efforts are included in the protection scope of the present invention.

[0027] In an embodiment of the present invention, see Figs. 1-3, an energy-saving kitchen / bathroom heater with in-pipe cold water recovery includes a piping assembly 200 retrofitted to a water heater main body 100, and the pipe assembly 200 includes a cold water pipe 210, a gas input pipe 220, and a hot water output pipe 240.

[0028] From the above, the following can be understood: gas is introduced into the water heater body 100 as fuel through the gas import pipe 220, and is burned to release heat, thereby heating the cold water introduced through the cold water pipe 210, and after the cold water becomes hot water, the hot water is discharged from the hot water export pipe 240.

[0029] It is necessary to explain that the pipe assembly 200 inside the body of the water heater 100, as well as the parts not shown in the figures, are conventional technologies (e.g., faucet assembly, main burner, small flame burner, heat exchanger, safety devices, etc.), the detailed structures of which are publicly known in existing literature and magazines, and can also be purchased directly on the market, and the configurations of the parts and components can also be purchased on the market, which are not protected by the present invention and are not described in detail in this document or depicted in the accompanying drawings.

[0030] Please refer to Figures 2-4 and 7-11. A hot water combination pipe 250 is installed in the hot water export pipe 240, and the hot water combination pipe 250 is attached to the water heater main body 100 by a hot water connection pipe 260. The hot water combination pipe 250 is composed of a metal hose and an internal hot water duct module 270 inserted into the metal hose.

[0031] From the above, it can be seen that after hot water is heated in the water heater body 100, it is exported through the hot water connection pipe 260, and is exported after flowing through the hot water combination pipe 250. While flowing through the hot water combination pipe 250, non-contact discharge of the previous cold water can be realized. Even when water is transported a long distance, the hot water transfers heat to the cold water, and a large amount of hot water is cooled, so that the waiting time for hot water is long and the cold water resource is not wasted. And, before hot water is used, the internal hot water conduit module 270 adjusts by expanding or contracting its own pipe radius to contract its horizontal radius and empty the cold water remaining inside. After hot water is used, the internal hot water conduit module 270 expands or contracts the horizontal radius of its own pipe radius to expand it and return to the original state.

[0032] It is to be noted that the present invention does not limit the length of the hot water combination pipe 250, and the length of the hot water combination pipe 250 can be flexibly manufactured according to the actual situation.

[0033] The internal hot water pipe module 270 includes a water inlet pipe end, an internal hot water pipe module body 272, and a water outlet pipe end 273, and the inlet pipe header 271 and the water outlet pipe end 273 are attached to both ends of the internal hot water pipe module body 272, respectively.

[0034] The internal hot water conduit module body 272 includes an outer tube 2721 (the outer tube 2721 is a gooseneck), an inner tube 2722 is installed inside the outer tube 2721, an internal hot water conduit 2723 is inserted inside the inner tube 2722, the inner tube 2722 is made of an elastomeric material, and its inner and outer surfaces are covered with an insulating layer; the internal space of the internal hot water conduit 2723 forms water tank I, and the space between the inner tube 2722 and the internal hot water conduit 2723 forms water tank II.

[0035] It is necessary to explain in more detail that the specific material of the inner hot water conduit 2723 used for the elastomer material made of the elastomer material can be rubber, TPE hose material, silicone, etc., all of the above according to the prior art, and the specific material is not particularly limited as long as it can satisfy the elasticity of the inner hot water conduit 2723. At the same time, it can be purchased on the market, and there are related descriptions in corresponding magazines and literature, which are also not included in the protection scope of the present invention and will not be described in detail in this document.

[0036] In addition, the heat insulating layer can use all of the above-mentioned materials in the prior art, such as foam, fiber, metal-plated polyester, polyimide film, etc., and the specific materials are not particularly limited as long as they can meet the heat insulating properties. At the same time, they can be purchased on the market, and there are related descriptions in corresponding magazines and literature, which are also not included in the protection scope of the present invention and will not be described in detail in this document.

[0037] After the hot water enters the internal hot water conduit module 270, the end of the water inlet pipe 271 distributes the hot water to the internal hot water conduit, and the hot water passes through the water tank I, and the elastic wall of the internal hot water conduit 2723 is pressed outward by the water pressure, the water tank II is compressed, and the cold water is discharged from the water tank II, and the cold water is discharged from the inner tube 2722 and the internal hot water conduit 2723, and the walls of the inner tube 2722 and the internal hot water conduit 2723 are pressed together, and the cold water in the water tank II is emptied, and the non-contact discharge and reuse of the cold water in the water flow mode I is completed (this state is referred to in Figure 9 and Figure 10);

[0038] The water-filled pipe tip 271 distributes hot water between the inner tube 2722 and the internal hot water conduit 2723, passing the hot water through the water tank II, the elastic wall of the internal hot water conduit 2723 is pushed inwards by the water pressure, the water tank I is compressed, the cold water is discharged from the water tank I, the walls of the internal hot water conduit 2723 are pressed together, the cold water in the water tank I is emptied, and the non-contact discharge and reuse of the cold water is completed in the water flow mode II. (Please refer to Figure 8 and Figure 11 for this state.)

[0039] From the above, the following can be understood: gas is introduced into the water heater body 100 through the gas input pipe 220 as fuel, and is burned to release heat to heat the cold water introduced from the cold water pipe 210. After the cold water becomes hot water, the hot water is discharged from the hot water output pipe 240. During this process, after the hot water enters the internal hot water conduit module 270, the tip of the water inlet pipe 271 distributes the hot water to the internal hot water conduit, and the hot water passes through the water tank I. The elastic wall of the internal hot water conduit 2723 is pushed outward by the water pressure, the water tank II is compressed, the cold water is discharged from the water tank II, and the cold water is discharged from the inner tube 2722 and the internal hot water conduit 2723. The water is discharged, pressing the walls of the inner tube 2722 and the internal hot water conduit 2723 together, emptying the cold water in water tank II, and completing the non-contact discharge and reuse of cold water in water flow mode I; during the next use, the water-filled pipe end 271 distributes hot water between the inner tube 2722 and the internal hot water conduit 2723, passing the hot water into water tank II, the water pressure presses the elastic walls of the internal hot water conduit 2723 inward, compressing water tank I, discharging cold water from water tank I, and pressing the walls of the internal hot water conduit 2723 together, emptying the cold water in water tank I, completing the non-contact discharge and reuse of cold water in water flow mode II.

[0040] In summary, since the internal hot water conduit 2723 is actually made of an elastomer material, the wall of the internal hot water conduit 2723 can expand and contract under water pressure, and the water tank I formed in the internal space of the internal hot water conduit 2723 and the water tank II formed in the space between the internal hot water conduit 2723 and the inner tube 2722 can squeeze each other's internal cold water in the process of switching between them; By alternately using the water flow mode I and the water flow mode II, the non-contact discharge and reuse of cold water is completed; The problem of the hot water heater being installed a little away from the water faucet, which results in a long waiting time for hot water and a waste of water resources is solved; In addition, since the hot water and the cold water are directly in contact with each other and alternately switched, heat is transferred between the contact of the hot water and the cold water, and in the case of long-distance transmission such as on a balcony, a large amount of hot water will transfer heat to the cold water, thereby avoiding the problem of the cooling of the hot water prolonging the waiting time for hot water and a waste of water resources.

[0041] At the same time, the outer tube 2721, the inner tube 2722, and the internal hot water conduit 2723 are interposed to form a single pipe, and combined with utilizing water pressure to expand and contract the wall of the internal hot water conduit 2723, it is possible to alternate between water flow modes 1 and 2. Therefore, in the case of a single pipe, non-contact discharge of cold water for reuse can be achieved with a pipe of any length, and the amount of treated water can be secured while reducing the amount of construction work. In addition, since there is no need to increase the number of auxiliary piping systems, the amount of piping used can be reduced, and increases in piping usage and maintenance costs can be avoided.

[0042] In an embodiment of the present invention, see Figures 4, 5 and 10, the inlet pipe head 271 includes a distribution pipe A2714 and a scheduling pipe A2711, the distribution pipe A2714 is connected to a connecting pipe A2713 at the end remote from the internal hot water duct module body 272, and the connecting pipe A2713 is connected to the hot water connecting pipe 260.

[0043] One end of the scheduling pipe A2711 is connected to the connection between the distribution pipe A2714 and the connection pipe A2713, and the other end is connected to an inner tube 2722, which is connected to the water tank II.

[0044] 5 and 10, the distribution pipe A2714 is connected to an internal hot water pipe 2723, and a solenoid valve A2715 is installed on the distribution pipe A2714 to switch on and off between the distribution pipe A2714 and the internal hot water pipe 2723.

[0045] A tap A2712 is attached to the scheduling pipe A2711 to switch on and off between the connecting pipe A2713 and the water tank II;

[0046] From the above, it can be seen that gas is introduced as fuel into the water heater body 100 through the gas import pipe 220, and is burned to release heat, thereby heating the cold water introduced from the cold water pipe 210. After the cold water becomes hot water, the hot water is discharged from the hot water export pipe 240, and in the process, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the tap A2712 is closed, the solenoid valve A2715 is opened, the distribution pipe A2714 and the internal hot water conduit 2723 are opened, the connecting pipe A2713 and the water passage tank II are switched to a closed state, the hot water is distributed into the internal hot water conduit 2723, and the hot water passes through the water tank I. The elastic wall of the inner hot water conduit 2723 is pushed outward by the water pressure, the water tank II is compressed, the cold water is discharged from the water tank II, and the walls of the inner tube 2722 and the inner hot water conduit 2723 are squeezed together to empty the cold water in the water tank II, completing the non-contact discharge and reuse of cold water in the water flow mode I; when it is used again, the hot water enters the inlet pipe head 271 of the inner hot water conduit module 270 and first enters the inside of the connecting pipe A2713. At this time, the tap A2712 is opened, the solenoid valve A2715 is closed, the distribution pipe A2714 and the inner hot water conduit 2723 are in a closed state, the connecting pipe A2713 and the water flow tank II are switched to an open state, and the inlet pipe head 271 distributes the hot water between the inner pipe 2722 and the inner hot water conduit 2723 through the scheduling pipe A2711, and allows the hot water to pass through the water tank II. The water pressure pushes the elastic wall of the internal hot water conduit 2723 inward, compressing the water tank I, discharging cold water from the water tank I, and squeezing the wall of the internal hot water conduit 2723 to empty the cold water in the water tank I, completing the non-contact discharge and reuse of cold water in the water flow mode II.

[0047] In an embodiment of the present invention, see Figures 4, 6 and 10, the outlet header 273 includes a scheduling pipe B2731 and a distribution pipe B2734, the distribution pipe B2734 is connected to a connecting pipe B2733 at an end remote from the internal hot water duct module body 272, and the connecting pipe B2733 is connected to the hot water export pipe 240.

[0048] One end of the scheduling pipe B2731 is connected to the junction between the distribution pipe B2734 and the connection pipe B2733, and the other end is connected to the inner tube 2722, which is connected to the water tank II.

[0049] 6 and 10, the distribution pipe B2734 is connected to the internal hot water conduit 2723, and a solenoid valve B2735 for switching on and off between the distribution pipe B2734 and the internal hot water conduit 2723 is attached to the distribution pipe B2734.

[0050] A plug B2732 is attached to the scheduling pipe B2731 to switch on and off between the connecting pipe B2733 and the water tank II.

[0051] From the above, it can be seen that hot water is discharged from the hot water export pipe 240, and in the process, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the valve A2712 is closed, the solenoid valve A2715 is opened, the distribution pipe A2714 and the internal hot water conduit 2723 are opened, the connecting pipe A2713 and the water tank II are switched to a closed state, the hot water is distributed to the internal hot water conduit 2723, and the hot water passes through the water tank I. At this time, the valve B2732 is closed, the solenoid valve B2735 is opened, the distribution pipe B2734 and the internal hot water conduit 2723 are opened, the connecting pipe B2733 and the water tank II are switched to a closed state, and the hot water is introduced into the hot water export pipe 240 through the connecting pipe B2733 for use. During the process of passing hot water through water tank I, the elastic wall of the internal hot water conduit 2723 is pushed outward by the water pressure, causing water tank II to be compressed, and cold water is discharged from water tank II, squeezing the walls of the inner tube 2722 and the internal hot water conduit 2723 together to empty the cold water in water tank II, thereby completing the non-contact discharge and reuse of cold water in water flow mode I.

[0052] At the next use, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the valve A2712 is opened, the solenoid valve A2715 is closed, the distribution pipe A2714 and the internal hot water conduit 2723 are closed, and the connecting pipe A2713 and the water tank II are switched to an open state, and the inlet pipe head 271 distributes the hot water between the inner pipe 2722 and the internal hot water conduit 2723 through the scheduling pipe A2711, and passes the hot water through the water tank II. At this time, the valve B2732 is opened, the solenoid valve B2735 is closed, the distribution pipe B2734 and the internal hot water conduit 2723 are closed, and the connecting pipe B2733 and the water tank II are switched to an open state, and the hot water is introduced into the hot water export pipe 240 through the connecting pipe B2733 for use. During the process of passing hot water through the water tank I, the elastic wall of the internal hot water conduit 2723 is pushed inward by the water pressure, the water tank I is compressed, cold water is discharged from the water tank I, and the wall of the internal hot water conduit 2723 is squeezed to empty the cold water in the water tank I, completing the non-contact discharge and reuse of cold water in the water flow mode II.

[0053] In an embodiment of the present invention, refer to FIG. 6, a cold water recovery pipe module is installed in the internal hot water duct module body 272, and the cold water recovery pipe module is used to discharge the cold water discharged from the inside of the internal hot water combination duct body 272; the cold water recovery pipe module is connected to the cold water pipe 210 via the cold water circulation pipe 230, and the cold water pipe 210 is used to transfer the cold water to the cold water pipe 210 for reuse.

[0054] See FIG. 6, the cold water recovery pipe module includes an export pipe A2736 and an export pipe B2739, the export pipe A2736 is connected to the inner tube 2722 and connected to the water tank II, and the export pipe B2739 is connected to the inner hot water conduit 2723 and connected to the water tank I.

[0055] See Figure 6, the export pipe A2736 and the export pipe B2739 are connected to a main pipe 2738 at the end remote from the internal hot water duct module body 272, and the main pipe 2738 is connected to the cold water return pipe 230 via a connecting pipe C2737.

[0056] Please refer to FIG. 6. The export pipe A2736 and the export pipe B2739 are provided with solenoid valves C.

[0057] From the above, it can be seen that gas is introduced as fuel into the water heater body 100 through the gas import pipe 220, and is burned to release heat, thereby heating the cold water introduced from the cold water pipe 210. After the cold water becomes hot water, the hot water is discharged from the hot water export pipe 240, and in the process, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the tap A2712 is closed, the solenoid valve A2715 is opened, the distribution pipe A2714 and the internal hot water conduit 2723 are opened, the connecting pipe A2713 and the water passage tank II are switched to a closed state, the hot water is distributed into the internal hot water conduit 2723, and the hot water passes through the water tank I. At this time, the plug B2732 is closed, the solenoid valve B2735 is opened, the distribution pipe B2734 and the internal hot water conduit 2723 are opened, the connection pipe B2733 and the water tank II are switched to a closed state, and the hot water is introduced into the hot water export pipe 240 through the connection pipe B2733 for use. During the process of passing hot water through water tank I, the elastic wall of the internal hot water conduit 2723 is pushed outward by the water pressure, water tank II is compressed, cold water is discharged from water tank II, solenoid valve ? is opened, export pipe A 2736 is in an open state, and export pipe B 2739 is in a closed state, and the cold water discharged from water tank II enters the inside of export pipe A 2736, and then passes through main pipe 2738 and connecting pipe ? 2737 into the inside of cold water circulation pipe 230 for reuse; the walls of the inner tube 2722 and the internal hot water conduit 2723 are squeezed together to empty the cold water in water tank II, completing the non-contact discharge and reuse of cold water in water flow mode I.

[0058] At the next use, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the valve A2712 is opened, the solenoid valve A2715 is closed, the distribution pipe A2714 and the internal hot water conduit 2723 are closed, and the connecting pipe A2713 and the water tank II are switched to an open state, and the inlet pipe head 271 distributes the hot water between the inner pipe 2722 and the internal hot water conduit 2723 through the scheduling pipe A2711, and passes the hot water through the water tank II. At this time, the valve B2732 is opened, the solenoid valve B2735 is closed, the distribution pipe B2734 and the internal hot water conduit 2723 are closed, and the connecting pipe B2733 and the water tank II are switched to an open state, and the hot water is introduced into the hot water export pipe 240 through the connecting pipe B2733 for use. During the process of passing hot water through tank I, the elastic wall of the internal hot water conduit 2723 is pressed inward by the water pressure, tank I is compressed, cold water is discharged from tank I, solenoid valve ? is opened, export pipe A 2736 is closed, and export pipe B 2739 is open, and the cold water discharged from tank I enters the inside of export pipe B 2739, and then passes through main pipe 2738 and connecting pipe ? 2737 into the inside of cold water circulation pipe 230 for reuse; the wall of the internal hot water conduit 2723 is squeezed to empty the cold water in tank I, completing the non-contact discharge and reuse of cold water in water flow mode II.

[0059] In an embodiment of the present invention, refer to Figures 12 and 13, the inner tube 2722 is composed of a multi-unit inner tube and a multi-stage rubber hose, the multi-unit inner tube and the multi-stage rubber hose are arranged in a cross shape, and the outer wall of the rubber hose is fixed inside the outer tube 2721.

[0060] The unit inner tube is composed of an outer telescopic tube 27222 and an inner elastic tube 27221 inserted inside the outer telescopic tube 27222; the outer telescopic tube 27222 is composed of a plurality of arc-shaped storage plates 27223 and a plurality of arc-shaped grid plates 27224, and the plurality of arc-shaped storage plates 27223 and the plurality of arc-shaped grid plates 27224 are arranged in a circular cross pattern.

[0061] The arc-shaped storage plate 27223 has a slot, and the arc-shaped grid plate 27224 is inserted into the slot by the elasticity of the elastic spacer; electromagnetic coils are attached to both sides of the surface of the arc-shaped storage plate 27223, and by controlling the strength of the current, different magnetic adsorption forces are generated on both sides of the arc-shaped storage plate 27223. After the force balance with the elastic spacer is reached, the elasticity of the arc-shaped grid plate 27224 and the penetration degree in the slot are adjusted, thereby realizing the expansion and contraction adjustment of the radius of the self-pipe.

[0062] From the above, it can be seen that when it is necessary to adjust the amount of water, different magnetic adsorption forces can be generated on both sides of the arc-shaped storage plate 27223 by controlling the strength of the current flow, and after a balance of forces with the elastic spacer is reached, the elasticity of the arc-shaped grid 27224 plate and the penetration degree within the slot can be adjusted, thereby realizing the expansion and contraction adjustment of the radius of the self-pipe and realizing the adjustment of different water amounts.

[0063] It is also necessary to explain that the length ratio of the unit inner tube to the rubber hose can be 5:1, 6:1, 7:1, 8:1, 9:1, or even 10:1, etc., and the number is not particularly limited, as long as it is satisfied that the length of the unit inner tube is greater than the length of the rubber hose, and here it is preferable to adopt a length ratio of 8:1 between the unit inner tube and the rubber tube.

[0064] What needs to be explained in more detail is that the layout and arrangement of the electromagnetic coil, the wiring method for energizing the electromagnetic coil (for example, it can be directly inserted inside the outer tube 2721), the control device for controlling the amount of power, etc. are prior art, and their detailed structures are publicly known in existing documents and magazines, and can also be purchased directly on the market, and the configuration of parts and components can also be purchased on the market or assembled from commercially available parts; these are not included in the scope of protection of the present invention, and are not described in detail in this document or depicted in the accompanying drawings.

[0065] The operating principle of the present invention is as follows: From the above, it can be seen that gas is introduced as fuel into the water heater body 100 through the gas import pipe 220, and is burned to release heat, thereby heating the cold water introduced from the cold water pipe 210. After the cold water becomes hot water, the hot water is discharged from the hot water export pipe 240, and in the process, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the tap A2712 is closed, the solenoid valve A2715 is opened, the distribution pipe A2714 and the internal hot water conduit 2723 are opened, the connecting pipe A2713 and the water passage tank II are switched to a closed state, the hot water is distributed into the internal hot water conduit 2723, and the hot water passes through the water tank I. At this time, the plug B2732 is closed, the solenoid valve B2735 is opened, the distribution pipe B2734 and the internal hot water conduit 2723 are opened, the connection pipe B2733 and the water tank II are switched to a closed state, and the hot water is introduced into the hot water export pipe 240 through the connection pipe B2733 for use. During the process of passing hot water through the water tank I, the elastic wall of the internal hot water conduit 2723 is pushed outward by the water pressure, the water tank II is compressed, cold water is discharged from the water tank II, the solenoid valve ? is opened, the export pipe A 2736 is in an open state, and the export pipe B 2739 is in a closed state, and the cold water discharged from the water tank II enters the inside of the export pipe A 2736, and then passes through the main pipe 2738 and the connecting pipe ? 2737 into the inside of the cold water circulation pipe 230 for reuse; the walls of the inner tube 2722 and the internal hot water conduit 2723 are squeezed together to empty the cold water in the water tank II, completing the non-contact discharge and reuse of cold water in the water flow mode I;

[0066] At the next use, the hot water enters the inlet pipe head 271 of the internal hot water conduit module 270, and first enters the inside of the connecting pipe A2713. At this time, the valve A2712 is opened, the solenoid valve A2715 is closed, the distribution pipe A2714 and the internal hot water conduit 2723 are closed, and the connecting pipe A2713 and the water tank II are switched to an open state, and the inlet pipe head 271 distributes the hot water between the inner pipe 2722 and the internal hot water conduit 2723 through the scheduling pipe A2711, and passes the hot water through the water tank II. At this time, the valve B2732 is opened, the solenoid valve B2735 is closed, the distribution pipe B2734 and the internal hot water conduit 2723 are closed, and the connecting pipe B2733 and the water tank II are switched to an open state, and the hot water is introduced into the hot water export pipe 240 through the connecting pipe B2733 for use. During the process of passing hot water through the water tank I, the elastic wall of the internal hot water conduit 2723 is pressed inward by the water pressure, the water tank I is compressed, and cold water is discharged from the water tank I. The solenoid valve ? is opened, the export pipe A 2736 is in a closed state, and the export pipe B 2739 is in an open state. The cold water discharged from the water tank I enters the inside of the export pipe B 2739, and then passes through the main pipe 2738 and the connecting pipe ? 2737 into the inside of the cold water circulation pipe 230 for reuse; the wall of the internal hot water conduit 2723 is squeezed to empty the cold water in the water tank I, completing the non-contact discharge and reuse of cold water in the water flow mode II. Since the internal hot water conduit 2723 is made of an elastomer material, the wall of the internal hot water conduit 2723 can expand and contract under water pressure, and in the process of switching between the water tank I formed in the internal space of the internal hot water conduit 2723 and the water tank II formed in the space between the internal hot water conduit 2723 and the inner tube 2722, the internal cold water can be squeezed out of each other; By alternately using the water flow mode I and the water flow mode II, non-contact discharge and reuse of cold water is completed; The problem of the long waiting time for hot water and the waste of water resources due to the water heater being installed a little away from the water faucet is solved. In addition, since the hot water and cold water are directly contacted and alternately switched, heat is transferred between the contacting hot water and cold water, which makes it possible to transmit heat over long distances such as on a balcony. In this case, a large amount of hot water transfers heat to cold water, which avoids the problem that the cooling of the hot water prolongs the waiting time for the hot water and wastes water resources; the outer tube 2721, the outer tube 2722, and the internal hot water conduit 2723 are interposed with each other to form a single pipe, and coupled with the use of water pressure to expand and contract the wall of the internal hot water conduit 2723, alternate switching between water flow mode 1 and mode 2 is realized, so that in the case of a single pipe, a pipe of any length can be used to realize non-contact discharge of cold water for reuse, which ensures the amount of treated water and reduces the amount of construction work at the same time; and since there is no need to increase the number of auxiliary pipes in the side system, the amount of pipe usage can be reduced, and an increase in the usage cost and maintenance cost of the pipes can be avoided.

[0067] Finally, it should be noted that the above content is merely a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiment, those skilled in the art may modify the technical solutions described in the above embodiment or make equivalent substitutions for some of its technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. [Explanation of symbols]

[0068] 100, water heater body; 220, gas import pipe; 230, cold water circulation pipe; 240, hot water export pipe; 250, hot water combination pipe; 260, hot water connection pipe; 270, internal hot water duct module; 271, water-filled pipe tip; 2711, scheduling pipe A; 2712, stopper A; 2713, connecting pipe A; 2714, distribution pipe A; 2715, solenoid valve A; 272, internal hot water duct module body; 2721, outer tube; 2722, inner tube; 27221, inner elastic tube; 27222, outer elastic tube; 27223, arc-shaped storage plate; 27224, arc-shaped grid plate; 2723, internal hot water duct; 273, water outlet pipe tip; 2731, scheduling pipe B; 2732, tap B; 2733, connecting pipe B; 2734, distribution pipe B; 2735, solenoid valve B; 2736, export pipe A; 2737, connecting pipe C; 2738, main pipe; 2739, export pipe B.

Claims

1. The present invention relates to an energy-saving heater for kitchens and bathrooms, which includes a pipe assembly (200) attached to a water heater body (100), the pipe assembly (200) including a cold water pipe (210), a gas import pipe (220) and a hot water export pipe (240), and which is capable of recovering cold water within the pipes, A hot water combination pipe (250) is installed in the hot water export pipe (240), and the hot water combination pipe (250) is attached to the water heater body (100) by a hot water connection pipe (260). The hot water combination pipe (250) is composed of a metal hose and an internal hot water duct module (270) inserted into the metal hose. The internal hot water duct module (270) includes a water inlet pipe end (271), an internal hot water duct module body (272) and a water outlet pipe end (273), the water inlet pipe end (271) and the water outlet pipe end (273) are respectively attached to both ends of the internal hot water duct module body (272); The internal hot water conduit module body (272) includes an outer tube (2721), an inner tube (2722) is installed inside the outer tube (2721), an internal hot water conduit (2723) is inserted inside the inner tube (2722), the internal hot water conduit (2723) is made of an elastomer material, and the inner and outer surfaces of the internal hot water conduit (2723) are covered with a heat insulating material layer, the internal space of the internal hot water conduit (2723) forms a water tank I, and the space between the inner tube (2722) and the internal hot water conduit (2723) forms a water tank II; After the hot water enters the internal hot water conduit module (270), the water-filled pipe tip (271) distributes the hot water to the internal hot water conduit (2723), and passes the hot water through the cavity I. The elastic wall of the internal hot water conduit (2723) is pushed outward by the water pressure, compressing the water tank II, discharging cold water from the water tank II, discharging cold water from the inner tube (2722) and the internal hot water conduit (2723), squeezing the walls of the inner tube (2722) and the internal hot water conduit (2723) together to empty the cold water in the water tank II, completing the non-contact discharge and reuse of cold water in the water flow mode I. The water-filled pipe tip (271) distributes the hot water between the inner tube (2722) and the internal hot water conduit (2723), passes the hot water through the water tank II, and the water pressure pushes the elastic wall of the internal hot water conduit (2723) inwards, compresses the water tank I, and discharges the cold water from the water tank I, and squeezes the walls of the internal hot water conduit (2723) together, emptying the cold water from the inside of the water tank I, completing the non-contact discharge and reuse of the cold water in the water flow mode II. A cold water recovery pipe module is attached to the internal hot water conduit module body (272), and the cold water recovery pipe module is used to discharge cold water discharged from the inside of the internal hot water conduit module body; The cold water recovery pipe module is connected to the cold water pipe (210) through the cold water circulation pipe (230), and the cold water recovery pipe module is used to transfer cold water to the cold water pipe (210) for reuse; The cold water recovery pipe module includes an export pipe A (2736) and an export pipe B (2739), the export pipe A (2736) is connected to an inner tube (2722) and connected to a water tank II; An energy-saving heater for kitchens and bathrooms capable of recovering cold water within the pipes, characterized in that an export pipe B (2739) is connected to an internal hot water duct (2723) and also to a water tank I.

2. The water-filled pipe end (271) includes a distribution pipe A (2714) and a scheduling pipe A (2711), the distribution pipe A (2714) is connected at its end away from the connection with the internal hot water conduit module body (272) to a connection pipe A (2713), and the connection pipe A (2713) is connected to the hot water connection pipe A (260); An energy-saving heater for kitchens and bathrooms with the ability to recover cold water within pipes, as described in claim 1, characterized in that one end of the scheduling pipe A (2711) is connected to the connection between the distribution pipe A (2714) and the connection pipe A (2713), and the other end is connected to the inner tube (2722) and to the water tank II.

3. The distribution pipe A (2714) is connected to the internal hot water conduit (2723), and a solenoid valve A (2715) is attached to the distribution pipe A (2714) to turn on and off between the distribution pipe A (2714) and the internal hot water conduit (2723). An energy-saving heater for kitchens and bathrooms with the ability to recover cold water within the pipes, as described in claim 2, characterized in that a plug A (2712) for turning on and off the connection between the connecting pipe A (2713) and the water tank II is attached to the scheduling pipe A (2711).

4. The water inlet pipe end (273) includes a scheduling pipe B (2731) and a distribution pipe B (2734), the distribution pipe B (2734) is connected to a connection pipe B (2733) at the end remote from the internal hot water duct module body (272), and the connection pipe B (2733) is connected to the hot water export pipe (240); An energy-saving heater for kitchens and bathrooms capable of recovering cold water within pipes as described in claim 1, characterized in that one end of the scheduling pipe B (2731) is connected to the connection between the distribution pipe B (2734) and the connecting pipe B (2733), and the other end is connected to the inner tube (2722) and to the water tank II.

5. The distribution pipe B (2734) is connected to the internal hot water conduit (2723), and a solenoid valve B (2735) is attached to the distribution pipe B (2734) to turn on and off between the distribution pipe B (2734) and the internal hot water conduit (2723). An energy-saving heater for kitchens and bathrooms with the ability to recover cold water within pipes, as described in claim 4, characterized in that a plug B (2732) for turning on and off the connection between the connecting pipe B (2733) and the water tank II is attached to the scheduling pipe B (2731).

6. An energy-saving kitchen / bathroom heater with cold water recovery within pipes as described in claim 1, characterized in that the export pipe A (2736) and the export pipe B (2739) are connected to a main pipe (2738) at their ends away from the internal hot water duct module body (272), and the main pipe (2738) is connected to a cold water return pipe (230) via a connecting pipe C (2737).

7. An energy-saving heater for kitchens and bathrooms with the ability to recover cold water within pipes, as described in claim 6, characterized in that both the export pipe A (2736) and the export pipe B (2739) are equipped with solenoid valves C.

8. The inner tube (2722) is composed of a multi-unit inner tube and a multi-stage rubber hose, the multi-unit inner tube and the multi-stage rubber hose are arranged in a cross shape, and the outer wall of the rubber hose is fixed inside the outer tube (2721), The unit inner tube is composed of an outer elastic tube (27222) and an inner elastic tube (27221) inserted inside the outer elastic tube (27222). The outer telescopic tube (27222) is composed of a plurality of arc-shaped storage plates (27223) and a plurality of arc-shaped grid plates (27224), and the plurality of arc-shaped storage plates (27223) and the plurality of arc-shaped grid plates (27224) are arranged in a circular crossing manner; The arc-shaped storage plate (27223) is provided with a slot, and the arc-shaped grid plate (27224) is inserted into the slot by the elasticity of the elastic spacer; An energy-saving kitchen / bathroom heater with in-pipe cold water recovery capability as described in any one of claims 1 to 7, characterized in that electromagnetic coils are attached to both sides of the surface of the arc-shaped storage plate (27223), and by controlling the strength of the current flowing through them, different magnetic adsorption forces are generated on both sides of the arc-shaped storage plate (27223).After a balance of forces with the elastic spacer is reached, the elasticity of the arc-shaped grid plate (27224) and the penetration degree within the slot are adjusted, thereby enabling the expansion and contraction adjustment of the radius of the pipe itself.

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