CN216048339U - Water heater with scale removing function - Google Patents

Water heater with scale removing function Download PDF

Info

Publication number
CN216048339U
CN216048339U CN202121466598.5U CN202121466598U CN216048339U CN 216048339 U CN216048339 U CN 216048339U CN 202121466598 U CN202121466598 U CN 202121466598U CN 216048339 U CN216048339 U CN 216048339U
Authority
CN
China
Prior art keywords
inner container
heat exchange
heater
mounting seat
exchange tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121466598.5U
Other languages
Chinese (zh)
Inventor
李合献
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Xiangneng Electrical Equipment Co ltd
Original Assignee
Dongguan Xiangneng Electrical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Xiangneng Electrical Equipment Co ltd filed Critical Dongguan Xiangneng Electrical Equipment Co ltd
Priority to CN202121466598.5U priority Critical patent/CN216048339U/en
Application granted granted Critical
Publication of CN216048339U publication Critical patent/CN216048339U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The utility model belongs to the technical field of heating equipment, and particularly relates to a water heater with a scale removal function, which comprises a shell, a control system, a heater, an inner container, a mounting seat, an ultrasonic generator, a transducer and a heat exchange tube, wherein the shell is provided with a water inlet and a water outlet; the inner container is arranged in the shell and is provided with heating oil, the heat exchange tube is arranged in the inner container in an annular shape and is connected with a water inlet tube and a water outlet tube which sequentially penetrate through the inner container and the shell respectively; the mounting seat is mounted at the top of the inner container and seals the inner container; the heater is fixedly connected with the mounting seat, and one end of the heater extends to the bottom of the inner container; the control system and the ultrasonic generator are arranged in the mounting seat, the transducer is connected with the ultrasonic generator, and the transducer is arranged at the bottom of the mounting seat and connected with the heat exchange tube; the control system is respectively connected with the heater and the ultrasonic generator and is used for controlling the heater and the ultrasonic generator. Avoid the incrustation scale to pile up, effectively detach the incrustation scale in the heat exchange tube.

Description

Water heater with scale removing function
Technical Field
The utility model belongs to the technical field of heating equipment, and particularly relates to a water heater with a scale removing function.
Background
At present, a heat source is generally needed for heating water by a household water heater, for example, an electric water heater needs electric heating, a solar water heater heats water by solar energy, and a gas water heater burns natural gas to heat water. Among them, the electric water heater is a water heater type which is commonly used in households.
When the electric water heater is used, when the electric water heater has two conditions of a heat exchange surface and tap water, the tap water is in contact with the heat exchange surface to exchange heat, and the tap water is heated. After a certain period of heat exchange, scale can be accumulated on the heat exchange surface, and the thickness of the scale and the required time are different according to different water quality conditions.
The water heater among the prior art is through sending out hot oil and being heat exchange medium, and cold water takes place the heat exchange with the oil that generates heat of heating when passing through the heat exchange tube, and the inner wall of heat exchange tube can gather the incrustation scale under the long-term use, and the incrustation scale can lead to heat transfer efficiency of the heat transfer surface of heat exchange tube to reduce, operating temperature increases, energy loss increase, heat transfer surface corruption aggravation, gathering filth scheduling problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a water heater with a scale removing function, and aims to solve the technical problems that the heat transfer efficiency of a heat exchange surface of a heat exchange tube is reduced, the working temperature is increased, the energy loss is increased, the corrosion of the heat exchange surface is intensified, and dirt is accumulated because scale is accumulated on the inner wall of the heat exchange tube when the water heater in the prior art is used for a long time.
In order to achieve the purpose, the embodiment of the utility model provides a water heater with a scale removal function, which comprises a shell, a control system, a heater, an inner container, a mounting seat, an ultrasonic generator, a transducer and a heat exchange tube, wherein the shell is provided with a water inlet and a water outlet; the heat exchange tube is arranged in the inner container in an annular manner, and is connected with a water inlet tube and a water outlet tube which sequentially penetrate through the inner container and the shell respectively; the mounting seat is mounted at the top of the inner container and seals the inner container; the heater is fixedly connected with the mounting seat, and one end of the heater extends to the bottom of the inner container; the control system and the ultrasonic generator are both arranged in the mounting seat, the transducer is connected with the ultrasonic generator, and the transducer is arranged at the bottom of the mounting seat and connected with the heat exchange tube; the control system is respectively connected with the heater and the ultrasonic generator and is used for controlling the heater and the ultrasonic generator.
Optionally, the mounting seat is detachably connected with the inner container, and a sealing ring is arranged at the joint of the mounting seat and the inner container.
Optionally, the mounting seat is connected with the inner container through a bolt.
Optionally, a temperature measuring tube is arranged on the mounting seat, and the temperature measuring tube is located at the bottom of the mounting seat and beside the transducer.
Optionally, the control system includes a first circuit board and a second circuit board, the first circuit board is electrically connected to the heater, and the second circuit board is connected to the ultrasonic generator.
Optionally, the water heater with the scale removal function further comprises a pressure regulating device and a partition plate, the partition plate is arranged in the inner container and divides the inner container into an expansion cavity and a heat exchange cavity which are arranged up and down, and a plurality of through holes are formed in the partition plate and used for communicating the expansion cavity with the heat exchange cavity; the mounting seat and the heater penetrate through the partition plate and extend into the heat exchange cavity; the heating oil and the heat exchange tube are arranged in the heat exchange cavity; the pressure regulating device is arranged in the shell, outside the inner container and communicated with the expansion cavity and used for regulating the pressure in the expansion cavity.
Optionally, the pressure regulating device comprises a pressure regulating tank body, a connecting pipe and an exhaust pipe, the pressure regulating tank body is fixedly connected outside the inner container, and heating oil is arranged in the pressure regulating tank body; one end of the connecting pipe is connected to the top of the inner container, and the other end of the connecting pipe extends into the bottom of the pressure regulating tank body; the exhaust pipe is connected to the top of the pressure regulating tank body, one end of the exhaust pipe extends out of the pressure regulating tank body, and the other end of the exhaust pipe is located above the heating oil.
Optionally, one end of the exhaust pipe extending out of the pressure regulating tank body is connected with an electromagnetic valve.
Optionally, a fixing seat is arranged in the shell, the fixing seat is fixedly connected to the bottom of the inner container, and the heat exchange tube is fixed to the fixing seat.
Optionally, the first end of the heat exchange tube, which is far away from the fixing seat, extends to the bottom of the partition plate along the height direction of the inner container in a spiral manner.
One or more technical schemes in the water heater with the scale removal function provided by the embodiment of the utility model at least have one of the following technical effects: according to the water heater with the scale removing function, the heat exchange tube is immersed in the heating oil, so that the heating oil can enable the heat exchange tube to be uniformly heated; the inner container is arranged in the shell and plays a role in heat preservation and protection; the upper end of the inner container is provided with an opening, and the mounting seat is connected with the inner container to seal the opening; the water inlet pipe and the water outlet pipe are respectively positioned at two ends of the heat exchange pipe, and both the water inlet pipe and the water outlet pipe sequentially penetrate through the inner container and the shell and extend out of the shell; when the water heater is used, the heater is controlled to be started by the control system, heating oil is heated, the heating oil is quickly heated and the temperature of the heat exchange tube is raised, water enters the heat exchange tube from the water inlet tube and exchanges heat with the heat exchange surface of the heat exchange tube, so that the water temperature is raised, and the heat exchange tube is annularly arranged, so that the water has a longer stroke in the heat exchange tube, can be fully heated and is discharged from the water outlet tube; after the heat exchange tube is used for a long time, scale is accumulated on the inner wall of the heat exchange tube, water enters the inside of the heat exchange tube from the water inlet tube, the ultrasonic generator is controlled to be started through the control system, the ultrasonic generator is connected with the transducer, the transducer converts high-frequency electric energy into mechanical vibration, and the transducer is connected with the heat exchange tube, so that the heat exchange tube generates vibration frequency close to the movement frequency of the scale, the scale accumulation is avoided, and the scale in the heat exchange tube is effectively removed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a water heater with a scale removal function according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is an enlarged schematic view of fig. 1 at B.
Wherein, in the figures, the respective reference numerals:
10-housing 20-control system 30-heater
40-inner container 41-heating oil 42-clapboard
43-expansion cavity 44-heat exchange cavity 45-fixed seat
50-mounting base 51-bolt 52-temperature measuring tube
60-ultrasonic generator 70-transducer 80-heat exchange tube
81-water inlet pipe 82-water outlet pipe 90-pressure regulating device
91-pressure regulating tank 92-connecting pipe 93-exhaust pipe
94-solenoid valve 421-through hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-3 are exemplary and intended to be used to illustrate embodiments of the utility model, and should not be construed as limiting the utility model.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the present invention, as shown in fig. 1 to 2, a water heater with a scale removing function is provided, which includes a housing 10, a control system 20, a heater 30, a liner 40, a mounting seat 50, an ultrasonic generator 60, a transducer 70 and a heat exchange tube 80; the inner container 40 is arranged in the shell 10, the inner container 40 is provided with heating oil 41, the heat exchange tube 80 is arranged in the inner container 40 in an annular shape, and the heat exchange tube 80 is connected with a water inlet pipe 81 and a water outlet pipe 82 which respectively penetrate through the inner container 40 and the shell 10 in sequence; the mounting seat 50 is mounted at the top of the inner container 40 and seals the inner container 40; the heater 30 is fixedly connected with the mounting seat 50, and one end of the heater 30 extends to the bottom of the inner container 40; the control system 20 and the ultrasonic generator 60 are both arranged in the mounting seat 50, the transducer 70 is connected with the ultrasonic generator 60, and the transducer 70 is arranged at the bottom of the mounting seat 50 and connected with the heat exchange tube 80; the control system 20 is connected to the heater 30 and the ultrasonic generator 60, respectively, and is configured to control the heater 30 and the ultrasonic generator 60.
Specifically, in the water heater with the scale removal function according to the embodiment of the utility model, the heat exchange tube 80 is immersed in the heating oil 41, so that the heating oil 41 can uniformly heat the heat exchange tube 80; the inner container 40 is arranged in the shell 10, and plays a role in heat preservation and protection for the inner container 40; the upper end of the inner container 40 is provided with an opening, and the mounting seat 50 is connected with the inner container 40 to seal the opening; the water inlet pipe 81 and the water outlet pipe 82 are respectively positioned at two ends of the heat exchange pipe 80, and the water inlet pipe 81 and the water outlet pipe 82 sequentially penetrate through the liner 40 and the shell 10 and extend out of the shell 10; when the water heater is used, the control system 20 controls the heater 30 to be started, the heating oil 41 is heated, the heating oil 41 is rapidly heated and the temperature of the heat exchange tube 80 is raised, water enters the heat exchange tube 80 from the water inlet tube 81 and exchanges heat with the heat exchange surface of the heat exchange tube 80, so that the water temperature is raised, and the heat exchange tube 80 is annularly arranged, so that the water has a longer stroke in the heat exchange tube 80, can be fully heated and is discharged from the water outlet tube 82; after long-term use, the scale is accumulated on the inner wall of the heat exchange tube 80, water enters the heat exchange tube 80 from the water inlet tube 81, the ultrasonic generator 60 is controlled to be started through the control system 20, the ultrasonic generator 60 is connected with the transducer 70, the transducer 70 converts high-frequency electric energy into mechanical vibration, and the transducer 70 is connected with the heat exchange tube 80, so that the heat exchange tube 80 generates vibration frequency close to the movement frequency of the scale, the scale accumulation is avoided, and the scale in the heat exchange tube 80 is effectively removed.
In another embodiment of the present invention, as shown in fig. 1 to 2, the mounting seat 50 is detachably connected to the inner container 40, and a sealing ring is disposed at a connection position of the mounting seat 50 and the inner container 40. Specifically, the heater 30, the control system 20, the ultrasonic generator 60 and the transducer 70 are all arranged on the mounting seat 50, and the mounting seat 50 is detachably connected with the liner 40, so that the heater 30, the control system 20, the ultrasonic generator 60 and the transducer 70 are convenient to overhaul; the sealing ring is arranged at the joint of the mounting seat 50 and the inner container 40 to prevent liquid leakage. Further, the number of the heaters 30 may be plural, and the number of the heaters 30 is set according to the requirement.
In another embodiment of the present invention, as shown in fig. 1 to 2, the mounting seat 50 is connected to the inner container 40 by a bolt 51. Specifically, corresponding screw holes are formed in the mounting seat 50 and the inner container 40, and the bolt 51 sequentially penetrates through the screw holes of the mounting seat 50 and the inner container 40 to connect the mounting seat 50 and the inner container 40.
In another embodiment of the present invention, as shown in fig. 1, a temperature measuring tube 52 is disposed on the mounting base 50, and the temperature measuring tube 52 is located at the bottom of the mounting base 50 and beside the transducer 70. Specifically, the temperature measuring tube 52 is used for detecting the temperature inside the inner container 40, i.e. detecting the oil temperature of the heating oil 41, so as to reflect the working state inside the inner container 40.
In another embodiment of the present invention, as shown in fig. 1, the control system 20 includes a first circuit board electrically connected to the heater 30 and a second circuit board connected to the ultrasonic generator 60. Specifically, the heater 30 and the ultrasonic generator 60 are controlled by the first circuit board and the second circuit board respectively, so that the heater 30 and the ultrasonic generator 60 are relatively independent.
In another embodiment of the present invention, as shown in fig. 1 and 3, the water heater with a scale removing function further includes a pressure regulating device 90 and a partition plate 42, the partition plate 42 is disposed in the inner container 40 and partitions the inner container 40 into an expansion cavity 43 and a heat exchange cavity 44 which are disposed up and down, the partition plate 42 is provided with a plurality of through holes 421 for communicating the expansion cavity 43 with the heat exchange cavity 44; the mounting seat 50 and the heater 30 both extend into the heat exchange cavity 44 through the partition plate 42; the heating oil 41 and the heat exchange pipe 80 are both arranged in the heat exchange cavity 44; the pressure adjusting device 90 is arranged in the shell 10 and outside the inner container 40, is communicated with the expansion cavity 43, and is used for adjusting the pressure in the expansion cavity 43. Specifically, in the process of heating the heating oil 41, the heating oil 41 expands due to its own property volume, the heating oil 41 enters the expansion cavity 43 through each through hole 421 of the partition plate 42 after being expanded by the heated volume, and the gas in the expansion cavity 43 enters the pressure regulating device 90 for regulation; thus, the inner container 40 is prevented from being damaged by the volume expansion of the heating oil 41. After the heating is stopped, the heating oil 41 in the expansion cavity 43 flows back to the heat exchange cavity 44 through the through hole 421, so as to avoid waste.
In another embodiment of the present invention, as shown in fig. 1, the pressure regulating device 90 includes a pressure regulating tank 91, a connecting pipe 92 and an exhaust pipe 93, the pressure regulating tank 91 is fixedly connected to the outside of the inner container 40, and the heating oil 41 is arranged in the pressure regulating tank 91; one end of the connecting pipe 92 is connected to the top of the inner container 40, and the other end of the connecting pipe extends into the bottom of the pressure regulating tank 91; the exhaust pipe 93 is connected to the top of the pressure regulating tank 91, one end of the exhaust pipe 93 extends out of the pressure regulating tank 91, and the other end of the exhaust pipe 93 is located above the heating oil 41. Specifically, the pressure regulating tank 91 is fixedly connected to the outer side of the inner container 40 and can be fixed in a threaded connection manner; the connection pipe 92 connects the expansion chamber 43 and the interior of the pressure-regulating tank 91; when the heating oil 41 in the inner container 40 expands in volume, the gas in the expansion chamber 43 is compressed into the pressure-regulating tank 91 through the connecting pipe 92, passes through the heating oil 41 in the form of bubbles, and is discharged from the gas discharge pipe 93. The heating oil 41 in the pressure regulating tank 91 plays a role in sealing, so that external air is prevented from entering the inner container 40, when heating is stopped, the heating oil 41 in the expansion cavity 43 flows back to the heat exchange cavity 44 through the through hole 421, the pressure in the inner container 40 is reduced, the heating oil 41 in the pressure regulating tank 91 possibly flows into the inner container 40 under the action of the pressure, and the heating oil 41 in the pressure regulating tank 91 is the same as the heating oil 41 in the inner container 40, so that the heating oil 41 in the inner container 40 is prevented from being polluted.
In another embodiment of the present invention, as shown in fig. 1, an electromagnetic valve 94 is connected to one end of the exhaust pipe 93 extending out of the pressure regulating tank 91. Specifically, the exhaust of the exhaust pipe 93 is controlled by a solenoid valve 94.
In another embodiment of the present invention, as shown in fig. 1, a fixing seat 45 is disposed in the casing 10, the fixing seat 45 is fixedly connected to the bottom of the inner container 40, and the heat exchange tube 80 is fixed to the fixing seat 45. Specifically, the heat exchange tube 80 is fixed through the fixing seat 45, so that the stability of the heat exchange tube 80 in the liner 40 is ensured, and the heat exchange tube 80 is prevented from being inclined in the transportation or process to influence the normal work.
In another embodiment of the present invention, as shown in fig. 1, the first end of the heat exchange tube 80, which is far away from the fixing seat 45, extends to the bottom of the partition plate 42 in a spiral manner along the height direction of the inner container 40. Specifically, the one end of heat exchange tube 80 is fixed on fixing base 45, and the other end toward the direction of keeping away from fixing base 45 extends, has increased the stroke of water in heat exchange tube 80, can carry out abundant heat transfer to water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a water heater with scale removal function which characterized in that: the device comprises a shell, a control system, a heater, an inner container, a mounting seat, an ultrasonic generator, an energy converter and a heat exchange tube; the heat exchange tube is arranged in the inner container in an annular manner, and is connected with a water inlet tube and a water outlet tube which sequentially penetrate through the inner container and the shell respectively; the mounting seat is mounted at the top of the inner container and seals the inner container; the heater is fixedly connected with the mounting seat, and one end of the heater extends to the bottom of the inner container; the control system and the ultrasonic generator are both arranged in the mounting seat, the transducer is connected with the ultrasonic generator, and the transducer is arranged at the bottom of the mounting seat and connected with the heat exchange tube; the control system is respectively connected with the heater and the ultrasonic generator and is used for controlling the heater and the ultrasonic generator.
2. The water heater with scale removing function according to claim 1, wherein: the mounting seat with the inner bag can be dismantled and be connected, just the mounting seat with the inner bag junction is equipped with the sealing washer.
3. The water heater with scale removing function according to claim 1, wherein: the mounting seat is connected with the inner container through a bolt.
4. The water heater with scale removing function according to claim 1, wherein: the temperature measuring tube is arranged on the mounting seat and is located at the bottom of the mounting seat and beside the transducer.
5. The water heater with scale removing function according to claim 1, wherein: the control system comprises a first circuit board and a second circuit board, the first circuit board is electrically connected with the heater, and the second circuit board is connected with the ultrasonic generator.
6. The water heater with scale removing function according to any one of claims 1 to 5, wherein: the water heater with the scale removal function further comprises a pressure regulating device and a partition plate, the partition plate is arranged in the inner container and divides the inner container into an expansion cavity and a heat exchange cavity which are arranged up and down, and a plurality of through holes are formed in the partition plate and used for communicating the expansion cavity with the heat exchange cavity; the mounting seat and the heater penetrate through the partition plate and extend into the heat exchange cavity; the heating oil and the heat exchange tube are arranged in the heat exchange cavity; the pressure regulating device is arranged in the shell, outside the inner container and communicated with the expansion cavity and used for regulating the pressure in the expansion cavity.
7. The water heater with scale removing function according to claim 6, wherein: the pressure regulating device comprises a pressure regulating tank body, a connecting pipe and an exhaust pipe, the pressure regulating tank body is fixedly connected outside the inner container, and heating oil is arranged in the pressure regulating tank body; one end of the connecting pipe is connected to the top of the inner container, and the other end of the connecting pipe extends into the bottom of the pressure regulating tank body; the exhaust pipe is connected to the top of the pressure regulating tank body, one end of the exhaust pipe extends out of the pressure regulating tank body, and the other end of the exhaust pipe is located above the heating oil.
8. The water heater with scale removing function according to claim 7, wherein: and one end of the exhaust pipe extending out of the pressure regulating tank body is connected with an electromagnetic valve.
9. The water heater with scale removing function according to claim 6, wherein: the heat exchange tube is characterized in that a fixed seat is arranged in the shell, the fixed seat is fixedly connected to the bottom of the inner container, and the heat exchange tube is fixed on the fixed seat.
10. A water heater with scale removing function according to claim 9, characterized in that: the first end of the heat exchange tube, which is far away from the fixed seat, spirally extends to the bottom of the partition plate along the height direction of the inner container.
CN202121466598.5U 2021-06-29 2021-06-29 Water heater with scale removing function Active CN216048339U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121466598.5U CN216048339U (en) 2021-06-29 2021-06-29 Water heater with scale removing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121466598.5U CN216048339U (en) 2021-06-29 2021-06-29 Water heater with scale removing function

Publications (1)

Publication Number Publication Date
CN216048339U true CN216048339U (en) 2022-03-15

Family

ID=80616692

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121466598.5U Active CN216048339U (en) 2021-06-29 2021-06-29 Water heater with scale removing function

Country Status (1)

Country Link
CN (1) CN216048339U (en)

Similar Documents

Publication Publication Date Title
CN205102094U (en) But multi -stage parallel connection's electromagnetic induction heating system
CN103900251A (en) Instant heating type water heater
CN216048339U (en) Water heater with scale removing function
CN210569184U (en) Water storage type electric heating wall-mounted stove
KR20110030035A (en) Warm water heating tube for electric boiler and electric boiler using the same
CN212029905U (en) High-efficiency electric heater
CN209926925U (en) Novel cold and hot water machine heat exchanger
CN215984153U (en) Intelligent temperature regulation control device of waste heat recovery hot water system
CN218884302U (en) Pressure-bearing solar water heater
CN217844279U (en) Multifunctional water heater adopting PTC (positive temperature coefficient) to heat
CN217155132U (en) Vertical heat exchanger exhaust structure
CN211601139U (en) Water tank system of high-temperature constant-temperature water outlet of commercial beverage dispenser
CN215337065U (en) High-efficiency water heating unit
CN210141609U (en) High-temperature heat source heat pump heat storage system
CN212961499U (en) Small cavity type steam generator
CN213630962U (en) Novel air energy instant water heater
CN209246042U (en) A kind of outer finishing stove of 24kw electric heating
CN220567936U (en) Spiral baffling sleeve type heater
CN214582614U (en) Adjust convenient positive displacement heat exchanger
CN108800267A (en) Electric heating phase-changing energy-storing thermal power plant unit and its variable working condition energy adjustment method
CN215725295U (en) A high-efficient heat transfer structure for boiler
CN217685867U (en) Double-energy-saving stepping water boiler
CN212902005U (en) Electromagnetic heater
CN220911682U (en) Phase change material water heater with vibration function
CN219453921U (en) Boiler blowdown cooling system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant