Thermal cycle type instant water heater

Abstract

The utility model discloses a thermal circulation type instant water heater, which belongs to the technical field of instant water heaters and comprises a box body, a cold water pipe is arranged at one end of the box body, a filter component is arranged on the surface of the cold water pipe, a hot water pipe is arranged at the other end of the box body, an air heat exchanger is arranged on one side of the box body, and a bath water heat exchanger is arranged on one side of the air heat exchanger. According to the water heater, the filtering assembly is arranged, the filtering box is installed between the external water pipe and the cold water pipe through the connecting pipe, the filtering net in the filtering plate in the filtering box can filter impurities in water, and therefore scale is not prone to being generated in the box body of the water heater, and the filtering effect is good; the heat insulation assembly is arranged, the vacuum heat insulation plate and the heat insulation soft felt are fixed to the outer surfaces of the cold water pipe, the refrigerant liquid pipe, the air pipe and the hot water pipe in a wrapping mode, double heat preservation and heat insulation are conducted on the pipeline, safety is higher, the influence of external temperature is reduced, and heat dissipation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of instant water heaters, and in particular relates to a thermal circulation type instant water heater. Background Art

[0002] Instantaneous water heaters are gas-fired instantaneous water heaters that use gas as fuel and transfer heat to cold water flowing through a heat exchanger to prepare hot water. They are also called fast or quick-heat or instantaneous water heaters.

[0003] Chinese patent application No. 202210014078.3 discloses a thermal circulation instant water heater, comprising a box body, a cold water pipe and a hot water pipe arranged at both ends of the box body, and a water tank arranged in the box body and equipped with a stirring structure and an electric heater. The two ends of the water tank are connected to the cold water pipe and the hot water pipe respectively. A first spiral tube and a second spiral tube are provided in the water tank. The two ends of the first spiral tube are connected to an air heat exchanger through a first refrigerant liquid pipe and a first air pipe, and the two ends of the second spiral tube are connected to a bathing water heat exchanger through a second refrigerant liquid pipe and a second air pipe. The water heater uses an air heat exchanger to utilize air energy, and the bathing water heat exchanger efficiently recovers the waste heat of bathing waste water, and then prepares hot water through the box body. This can solve the current problems of high cost, high heat loss, low energy efficiency ratio and inconvenient installation of heat pump water heaters, and achieve the purpose of energy saving.

[0004] In the above-mentioned public patents, 1. when the water in the cold water pipe enters the water tank for heating, the scale in the water easily condenses on the inner wall of the water tank, which is inconvenient to clean; 2. The internal temperature of pipes such as the refrigerant liquid pipe and the gas pipe is relatively high, which can easily cause harm to the staff and easily cause heat loss during heat dissipation. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a heat circulation instant water heater, which has the characteristics of good filtering effect and good heat insulation effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat circulation instant water heater, comprising a box body, a cold water pipe is arranged at one end of the box body, a filter assembly is arranged on the surface of the cold water pipe, a hot water pipe is arranged at the other end of the box body, an air heat exchanger is arranged on one side of the box body, a bath water heat exchanger is arranged on one side of the air heat exchanger, compressors are arranged between the air heat exchanger and the bath water heat exchanger and the box body, a gas-liquid separator is arranged on the side of the compressor away from the box body, an air pipe is arranged between the box body and the compressor, a filter is arranged on one side of the compressor, an expansion valve is arranged on one side of the filter, a refrigerant liquid pipe is arranged between the filter and the box body, and the outer surfaces of the cold water pipe, the refrigerant liquid pipe, the air pipe and the hot water pipe are all provided with insulation assemblies.

[0007] Preferably, the filter assembly includes a filter box, a connecting pipe and a filter plate, wherein a filter box is provided at one end of the cold water pipe, connecting pipes are provided at both ends of the filter box, and two groups of filter plates are provided inside the filter box.

[0008] Preferably, the filter plate includes a filter screen, a mounting plate, fixing holes and a fixing plate, wherein a mounting plate is arranged inside the filter box, a filter screen is arranged inside the mounting plate, a fixing plate is arranged at the upper end of the mounting plate, and fixing holes are arranged on both sides of the fixing plate.

[0009] Preferably, the filter plate further comprises a card plate, a card slot and a sealing gasket, wherein a card plate is arranged at the bottom of the mounting plate, a card slot is arranged at a position inside the filter box corresponding to the card plate, and a sealing gasket is arranged inside the card slot.

[0010] Preferably, the thermal insulation component includes a thermal insulation felt, a vacuum insulation panel and a connecting layer, wherein the outer surfaces of the cold water pipe, the refrigerant liquid pipe, the gas pipe and the hot water pipe are all provided with a connecting layer, the surface of the connecting layer is provided with a vacuum insulation panel, and the surface of the vacuum insulation panel is provided with a thermal insulation felt.

[0011] Preferably, the thermal insulation component further comprises a waterproof film layer and a rubber protective pad, wherein the rubber protective pad is arranged on the outer surface of the thermal insulation soft felt, and the waterproof film layer is arranged on the surface of the rubber protective pad.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a filter assembly, so that the filter box is installed between the external water pipe and the cold water pipe through a connecting pipe. The filter net in the filter plate inside the utility model can filter impurities in the water, so that it is not easy to generate scale inside the water heater box, and the filtering effect is better.

[0014] 2. The utility model is provided with a heat insulation component, so that the vacuum insulation board and the heat insulation soft felt are wrapped and fixed on the outer surface of the cold water pipe, the refrigerant liquid pipe, the gas pipe and the hot water pipe, so that the pipe is double-insulated, which is safer and reduces the influence of the external temperature and reduces the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the filter assembly of the utility model;

[0018] Figure 4 It is a cross-sectional view of the thermal insulation component of the utility model;

[0019] In the figure: 1. box body; 2. filter assembly; 21. filter box; 22. connecting pipe; 23. filter plate; 231. filter screen; 232. card plate; 233. card slot; 234. sealing gasket; 235. mounting plate; 236. fixing hole; 237. fixing plate; 3. thermal insulation assembly; 31. waterproof film layer; 32. rubber protective pad; 33. thermal insulation soft felt; 34. vacuum insulation board; 35. connecting layer; 4. compressor; 5. filter; 6. expansion valve; 7. air heat exchanger; 8. bath water heat exchanger; 9. gas-liquid separator; 10. cold water pipe; 11. refrigerant liquid pipe; 12. gas pipe; 13. hot water pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a heat circulation instant water heater, comprising a box body 1, a cold water pipe 10 is arranged at one end of the box body 1, a filter assembly 2 is arranged on the surface of the cold water pipe 10, a hot water pipe 13 is arranged at the other end of the box body 1, an air heat exchanger 7 is arranged on one side of the box body 1, a bath water heat exchanger 8 is arranged on one side of the air heat exchanger 7, a compressor 4 is arranged between the air heat exchanger 7 and the bath water heat exchanger 8 and the box body 1, a gas-liquid separator 9 is arranged on the side of the compressor 4 away from the box body 1, an air pipe 12 is arranged between the box body 1 and the compressor 4, a filter 5 is arranged on one side of the compressor 4, an expansion valve 6 is arranged on one side of the filter 5, a refrigerant liquid pipe 11 is arranged between the filter 5 and the box body 1, and the outer surfaces of the cold water pipe 10, the refrigerant liquid pipe 11, the air pipe 12 and the hot water pipe 13 are all provided with insulation assemblies 3.

[0023] Specifically, the filter assembly 2 includes a filter box 21, a connecting pipe 22 and a filter plate 23, wherein the filter box 21 is disposed at one end of the cold water pipe 10, connecting pipes 22 are disposed at both ends of the filter box 21, and two groups of filter plates 23 are disposed inside the filter box 21.

[0024] By adopting the above technical solution, the connecting pipe 22 at one end of the filter box 21 is connected to the external water pipe, and the connecting pipe 22 at the other end is connected to the cold water pipe 10, so that water enters the filter box 21 and is filtered through the filter plate 23 to remove impurities therein.

[0025] Specifically, the filter plate 23 includes a filter screen 231, a mounting plate 235, a fixing hole 236 and a fixing plate 237, wherein the filter box 21 is provided with a mounting plate 235, the filter screen 231 is provided inside the mounting plate 235, a fixing plate 237 is provided at the upper end of the mounting plate 235, and fixing holes 236 are provided on both sides of the fixing plate 237.

[0026] By adopting the above technical solution, the mounting plate 235 is inserted into the filter box 21, and the bolts are passed through the fixing holes 236 in the fixing plate 237, so that the mounting plate 235 can be fixed, and the filter net 231 can filter water.

[0027] Specifically, the filter plate 23 further includes a card plate 232, a card slot 233 and a sealing gasket 234, wherein the card plate 232 is disposed at the bottom of the mounting plate 235, a card slot 233 is disposed at a position corresponding to the card plate 232 inside the filter box 21, and a sealing gasket 234 is disposed inside the card slot 233.

[0028] By adopting the above technical solution, the card plate 232 corresponds to the card slot 233 , and the mounting plate 235 can be limited to be more stable when subjected to water impact, and the sealing gasket 234 can prevent water from entering the card slot 233 .

[0029] When the present embodiment is used, the connecting pipe 22 at one end of the filter box 21 is connected to the external water pipe, and the connecting pipe 22 at the other end is connected to the cold water pipe 10, so that water enters the filter box 21 and is filtered through the filter plate 23 to remove impurities therein, and then enters the box body 1 of the instant water heater through the cold water pipe 10 for heating. The mounting plate 235 is inserted into the filter box 21, and the bolts are passed through the fixing holes 236 in the fixing plate 237, so that the mounting plate 235 can be fixed, and the filter screen 231 can filter the water. Filtration, the card plate 232 corresponds to the card slot 233, and the mounting plate 235 can be limited to make it more stable when impacted by water. The sealing gasket 234 can prevent water from entering the card slot 233. The air heat exchanger 7 and the bath water heat exchanger 8 are connected to the compressor 4 and the gas-liquid separator 9 between the air pipe 12 and the box body 1, and the filter 5 and the expansion valve 6 are connected through the refrigerant liquid pipe 11. The air heat exchanger 7 can recover the heat of the air, and the bath water heat exchanger 8 can recover the waste heat of the bathing waste water. The heat is recycled and energy consumption is saved.

[0030] Example 2

[0031] The present embodiment is different from the embodiment 1 in that the heat insulation assembly 3 includes a heat insulation soft felt 33, a vacuum insulation panel 34 and a connection layer 35, wherein the outer surfaces of the cold water pipe 10, the refrigerant liquid pipe 11, the gas pipe 12 and the hot water pipe 13 are all provided with a connection layer 35, the surface of the connection layer 35 is provided with a vacuum insulation panel 34, and the surface of the vacuum insulation panel 34 is provided with a heat insulation soft felt 33.

[0032] By adopting the above technical solution, the vacuum insulation panel 34 is fixed to the outer surface of the cold water pipe 10, the refrigerant liquid pipe 11, the air pipe 12 and the hot water pipe 13 through the connecting layer 35, and the thermal insulation soft felt 33 is further wrapped, thereby achieving a double insulation effect, being safer, reducing the influence of the external temperature, and reducing the heat dissipation.

[0033] Specifically, the heat insulation component 3 further includes a waterproof film layer 31 and a rubber protective pad 32, wherein the rubber protective pad 32 is arranged on the outer surface of the heat insulation soft felt 33, and the waterproof film layer 31 is arranged on the surface of the rubber protective pad 32.

[0034] By adopting the above technical solution, the rubber protective pad 32 can be further protected, and the waterproof film layer 31 allows the rubber protective pad 32 to be easily cleaned and not easily dirty.

[0035] When this embodiment is used, the vacuum insulation panel 34 is fixed to the outer surface of the cold water pipe 10, the refrigerant liquid pipe 11, the air pipe 12 and the hot water pipe 13 through the connecting layer 35, and the thermal insulation soft felt 33 is further wrapped to achieve a double thermal insulation effect, which is safer and reduces the influence of the external temperature and the heat dissipation. The rubber protective pad 32 can provide further protection, and the waterproof film layer 31 allows the rubber protective pad 32 to be easily cleaned and not easily dirty.

[0036] The structures and working principles of the box body 1, compressor 4, air heat exchanger 7, bath water heat exchanger 8 and gas-liquid separator 9 in the utility model have been disclosed in a thermal circulation instant water heater disclosed in Chinese patent application number 202210014078.3. The working principle of the box body 1 is that the stirring structure in the water tank works, the solenoid valve is opened, and the gas in the first air pipe 12 is controlled to intermittently enter the third conduit. The gas is injected into the first chamber in the movable cylinder through the third conduit, pushing the movable cylinder to move toward the second conduit until the exhaust port opened on the inner wall of the movable cylinder is staggered with the pipe mouth ring, and the air guide cavity connects the first chamber and the second chamber, and the gas enters the second conduit through the second chamber and is discharged to the first refrigerant liquid pipe 11 for circulation. The movable cylinder is reset under the propulsion of two springs, and the movable cylinder drives the three paddle groups forward to stir the water flow, accelerate the heat transfer between the water body and the first spiral tube and the second spiral tube, and the gas used for propulsion can return to the first refrigerant liquid pipe 11, saving energy consumption, and the working principle of the compressor 4. The working principle is to inhale low-temperature and low-pressure refrigerant gas from the intake pipe, compress it by driving the piston through the operation of the motor, and then discharge high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. The working principle of the air heat exchanger 7 is that the heat exchange system is used to realize the gas circulation in the equipment, and the heat exchange of the gas is carried out through the difference in indoor and outdoor temperatures. The working principle of the bathing water heat exchanger 8 is that the two ends of the heat exchange tube are respectively connected to the second refrigerant liquid pipe 11 and the second air pipe 12, and the bathing waste water enters the water collecting tank through the water filter port opened at the upper end of the detachable lifting plate. The guide plate guides the waste water. When the waste water flows into the water collecting tank, the flow direction of the waste water is opposite to the flow direction of the refrigerant in the heat exchange tube in the water collecting tank, thereby improving the heat exchange effect of the bathing water heat exchanger 8. After the heat exchange, the waste water is discharged through the drain pipe. The working principle of the gas-liquid separator 9 is that when the saturated gas is cooled or pressurized, a part of the condensable gas components will form small droplets and flow with the gas. The function of the gas-liquid separator 9 is to treat the gas containing a small amount of condensate to realize condensate recovery or gas phase purification.

[0037] Working principle and use process of the utility model: When the utility model is used, the connecting pipe 22 at one end of the filter box 21 is connected to the external water pipe, and the connecting pipe 22 at the other end is connected to the cold water pipe 10, so that water enters the filter box 21 and is filtered through the filter plate 23 to remove impurities therein, and then enters the box body 1 of the instant water heater through the cold water pipe 10 for heating. The mounting plate 235 is inserted into the filter box 21, and the bolts are passed through the fixing holes 236 in the fixing plate 237 to fix the mounting plate 235. The filter net 231 can filter the water. The clamping plate 232 corresponds to the clamping groove 233, and the mounting plate 235 can be limited to make it more stable when it is impacted by water. The sealing gasket 234 can prevent water from entering the clamping groove 233. The air heat exchanger 7 and the bathing water heat exchanger 8 are connected to the compressor 4 and the gas-liquid separator 9 between the box body 1 through the air pipe 12, and the filter 5 and the expansion valve 6 are connected through the refrigerant liquid pipe 11, so that the air heat exchanger 7 can recover the heat of the air, and the bathing water heat exchanger 8 can recover the waste heat of the bathing waste water, and the heat is recycled, saving energy consumption; the vacuum insulation board 34 is fixed to the outer surface of the cold water pipe 10, the refrigerant liquid pipe 11, the air pipe 12 and the hot water pipe 13 through the connecting layer 35, and the insulating soft felt 33 is further wrapped, so as to achieve a double insulation effect, which is safer and reduces the influence of the external temperature and the heat dissipation. The rubber protective pad 32 can be further protected, and the waterproof film layer 31 makes the rubber protective pad 32 easy to clean and not easy to get dirty.

[0038] 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 thermal cycle instant water heater, comprising a housing, characterized in that: A cold water pipe is provided at one end of the box, a filter assembly is provided on the surface of the cold water pipe, a hot water pipe is provided at the other end of the box, an air heat exchanger is provided on one side of the box, a bath water heat exchanger is provided on one side of the air heat exchanger, compressors are provided between the air heat exchanger and the bath water heat exchanger and the box, a gas-liquid separator is provided on the side of the compressor away from the box, an air pipe is provided between the box and the compressor, a filter is provided on one side of the compressor, an expansion valve is provided on one side of the filter, a refrigerant liquid pipe is provided between the filter and the box, and insulation assemblies are provided on the outer surfaces of the cold water pipe, the refrigerant liquid pipe, the air pipe and the hot water pipe.

2. A thermal cycle instant water heater according to claim 1, characterized in that: The filter assembly includes a filter box, a connecting pipe and a filter plate, wherein a filter box is arranged at one end of the cold water pipe, connecting pipes are arranged at both ends of the filter box, and two groups of filter plates are arranged inside the filter box.

3. A thermal cycle instant water heater according to claim 2, characterized in that: The filter plate includes a filter screen, a mounting plate, fixing holes and a fixing plate, wherein a mounting plate is arranged inside the filter box, a filter screen is arranged inside the mounting plate, a fixing plate is arranged at the upper end of the mounting plate, and fixing holes are arranged on both sides of the fixing plate.

4. A thermal cycle instant water heater according to claim 3, characterized in that: The filter plate also includes a card plate, a card slot and a sealing gasket, wherein a card plate is arranged at the bottom of the mounting plate, a card slot is arranged at a position corresponding to the card plate inside the filter box, and a sealing gasket is arranged inside the card slot.

5. The thermal cycle instant water heater according to claim 1, characterized in that: The thermal insulation component includes a thermal insulation soft felt, a vacuum insulation panel and a connecting layer, wherein the outer surfaces of the cold water pipe, the refrigerant liquid pipe, the gas pipe and the hot water pipe are all provided with a connecting layer, the surface of the connecting layer is provided with a vacuum insulation panel, and the surface of the vacuum insulation panel is provided with a thermal insulation soft felt.

6. A thermal cycle instant water heater according to claim 5, characterized in that: The thermal insulation component also includes a waterproof film layer and a rubber protective pad, wherein the rubber protective pad is arranged on the outer surface of the thermal insulation soft felt, and the waterproof film layer is arranged on the surface of the rubber protective pad.

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