CN209857387U - Wall-mounted electric boiler's water circulating system and wall-mounted electric boiler - Google Patents

Abstract

The utility model discloses a water circulation system of a wall-mounted electric boiler and the wall-mounted electric boiler, which comprises a boiler furnace, a heating return pipe, a heating outlet pipe, a circulating water pump, a first valve body, a second valve body, a bypass pipe and a plate heat exchanger, wherein the input end of the circulating water pump is connected with the first valve body, one side of the plate heat exchanger is connected with the first valve body, the other side of the plate heat exchanger is connected with the second valve body, the other side of the heating outlet pipe is connected with the second valve body, one side of the bypass pipe is connected with the first valve body, the other side of the bypass pipe is connected with the second valve body, a cold water inlet and a heating return port are arranged below the first valve body, a hot water outlet and a heating water outlet are arranged below the second valve body, a heat exchange device is not needed to be arranged in the boiler, the water system of the electric boiler has a constant-temperature hot water function, and the comfort level of using hot water is effectively improved.

Description

Wall-mounted electric boiler's water circulating system and wall-mounted electric boiler

Technical Field

The utility model relates to a house heating equipment especially relates to a wall-hanging electric boiler's water circulating system and wall-hanging electric boiler.

Background

At present, wall-mounted electric boilers in the prior art can be divided into a gas type and an electric energy type, and the gas type wall-mounted electric boiler can generate toxic gases such as carbon dioxide and sulfur dioxide in the using process, so that certain pollution can be caused to the environment; the electric energy type wall-mounted electric boiler is more and more favored by the market due to the advantage of no pollutant emission.

Wall-hanging electric boiler is mostly used for providing life hot water among the prior art, and the function is more single, but along with the improvement of scientific and technological level, people have developed the wall-hanging electric boiler that can provide life hot water and heating function simultaneously, the chinese utility model patent that publication is CN 205690522U discloses wall-hanging electric boiler's water route system and wall-hanging electric boiler, including heating circulation system, heating circulation system is including connecting heating equipment and sending water into the heating wet return of stove courage through circulating water pump to and send the water in the stove courage into heating outlet pipe to heating equipment, heating outlet pipe and circulating water pump intake one side intercommunication have the bypass pipe, the bypass pipe on be provided with the water pressure that is greater than circulating water pump intake one side water pressure and the bypass valve of opening after the water pressure difference is greater than the predetermined value.

However, the boiler has the disadvantage of unstable temperature of the output domestic hot water, and because the heat exchange device of the boiler is arranged in the furnace, different types of boilers cannot be assembled according to the needs of users.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists, provide one kind and have constant temperature hot water function, effectively improve the water circulating system who uses the wall-hanging electric boiler of hydrothermal comfort level, concrete technical scheme is as follows:

a water circulation system of a wall-mounted electric boiler comprises a boiler furnace, a heating water return pipe, a heating water outlet pipe and a circulating water pump, wherein one side of the heating water return pipe is connected with the boiler furnace, the other side of the heating water return pipe is connected with the output end of the circulating water pump and used for sending water into the boiler furnace, one side of the heating water outlet pipe is connected with the boiler furnace, the water circulation system further comprises a first valve body, a second valve body, a bypass pipe and a plate heat exchanger, the input end of the circulating water pump is connected with the first valve body, one side of the plate heat exchanger is connected with the first valve body, the other side of the plate heat exchanger is connected with the second valve body, the other side of the heating water outlet pipe is connected with the second valve body, one side of the bypass pipe is connected with the first valve body, the other side of the bypass pipe is, and a hot water outlet and a heating water outlet are arranged below the second valve body.

As an improvement of the above technical solution, the first valve body is provided with a safety valve.

As an improvement of the technical scheme, the first valve body is provided with a water flow switch.

As an improvement of the technical scheme, a water replenishing port is arranged at the lower part of the first valve body, and a water replenishing valve is arranged on the water replenishing port.

As an improvement of the technical scheme, an expansion water tank connecting pipe is arranged above the first valve body and connected to the side of the first valve body.

As an improvement of the above technical solution, the second valve body is provided with a three-way solenoid valve.

As an improvement of the technical scheme, the heating water return pipe is arranged at the lower part of the furnace pipe, and the heating water outlet pipe is arranged at the upper part of the furnace pipe.

The utility model provides a wall-hanging electric boiler that the structure is more nimble to the not enough of prior art existence, can assemble the stove courage of different forms according to user's needs.

A wall-mounted electric boiler comprises a water circulation system, a shell, a fixing frame, an expansion water tank, an electric system and a water path substrate, wherein a furnace pipe is fixed on the fixing frame, the shell wraps the furnace pipe and the electric system, the water path substrate is arranged below the fixing frame, the shell further comprises a control panel, the control panel is arranged on the water path substrate in a turnover manner, the expansion water tank is arranged on the fixing frame, the water path substrate is respectively provided with a cold water inlet hole corresponding to a cold water inlet, a heating water return hole corresponding to a heating water return port, a hot water outlet hole corresponding to a hot water outlet and a heating water outlet hole corresponding to the heating water outlet, and the cold water inlet hole, the heating water return hole, the hot water outlet hole and the heating water outlet hole are all positioned on the same straight line, the expansion water tank connecting pipe is connected to the expansion water tank.

Compared with the prior art, the utility model has the advantages that the furnace pipe is not required to be provided with a heat exchange device, the structure is more flexible, and the furnace pipes in different forms can be assembled according to the needs of users; adopt plate heat exchanger, make electric boiler's water system have the hot water function of constant temperature, effectual improvement uses hydrothermal comfort level.

Drawings

The invention itself, however, as well as a number of the attendant advantages thereof, will be best understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:

fig. 1 is an oblique view of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 2 is a rear view of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 3 is a front view of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 4 is a bottom view of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 5 is a schematic structural view of a first valve body of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 6 is a perspective view of a first valve body of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 7 is a schematic structural view of a second valve body of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 8 is a schematic structural view of a plate radiator of a waterway system of a wall-mounted electric boiler according to the present invention;

fig. 9 is an exploded view of the liner structure of the waterway system of the wall-mounted electric boiler of the present invention;

fig. 10 is a schematic view of the internal structure of a wall-mounted electric boiler according to the present invention;

fig. 11 is a schematic view of an appearance structure of a wall-mounted electric boiler according to the present invention;

fig. 12 is a schematic view of a bottom structure of a wall-mounted electric boiler according to the present invention;

fig. 13 is a schematic view of a waterway substrate structure of a wall-mounted electric boiler according to the present invention;

fig. 14 is a bottom rear view of a wall-mounted electric boiler according to the present invention.

Description of reference numerals:

1. a furnace pipe; 2. a heating water return pipe; 3. a heating water outlet pipe; 4. a water circulating pump; 5. a first valve body; 6. a second valve body; 7. a bypass pipe; 8. a plate heat exchanger; 9. an expansion water tank connecting pipe; 10. a housing; 11. a fixed mount; 12. an expansion tank; 13. an electrical system; 14. a waterway substrate; 15. a control panel; 101. an electric heater; 102. a protective cover; 103. a threading slot; 501. a cold water inlet; 502. a heating water return port; 503. a water pump interface; 504. a heat exchanger first junction; 505. a heat exchanger second joint; 506. a safety valve; 507. a water flow switch; 508. a water replenishing port; 509. a water replenishing valve; 601. a hot water outlet; 602. a heating water outlet; 603. a water outlet interface; 604. a third joint of the heat exchanger; 605. a fourth joint of the heat exchanger; 606. a three-way solenoid valve; 801. a first interface; 802. a second interface; 803. a third interface; 804. a fourth interface; 1001. a cover; 1101. mounting a plate; 1102. a vent; 1401. a water inlet hole; 1402. a heating water return hole; 1403. a hot water outlet; 1404. a heating water outlet; 1405. a wire inlet hole; 1406. a mounting seat; 1407. a support portion; 1408. a protective groove; 1409. an inspection opening; 1410. and (5) water replenishing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being 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," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, a water circulation system of a wall-mounted electric boiler includes a furnace 1, a heating return pipe 2, a heating outlet pipe 3, and a circulating water pump 4, one side of the heating return pipe 2 is connected to the furnace 1, the other side of the heating return pipe 2 is connected to an output end of the circulating water pump 4 to feed water into the furnace, one side of the heating outlet pipe 3 is connected to the furnace 1, and further includes a first valve body 5, a second valve body 6, a bypass pipe 7, and a plate heat exchanger 8, an input end of the circulating water pump 4 is connected to the first valve body 5, one side of the plate heat exchanger 8 is connected to the first valve body 5, the other side of the plate heat exchanger 8 is connected to the second valve body 6, the other side of the heating outlet pipe 3 is connected to the second valve body 6, one side of the bypass pipe 7 is connected to the first valve body 5, the other, through the setting of bypass pipe 7, can prevent to avoid circulating water pump 4 to intake the water pressure difference too big and lead to circulating water pump overload operation of one side with the play water side, be equipped with cold water inlet 501 and heating return water mouth 502 below the first valve body 5, be equipped with hot water outlet 601 and heating delivery port 602 below the second valve body.

In this embodiment, the first valve body 5 includes a water pump interface 503, a first joint 504 of a heat exchanger, a second joint 505 of the heat exchanger, a cold water inlet 501, and a heating water return port 502, see fig. 5 and 6; the second valve body 6 includes a water outlet port 603, a heat exchanger third joint 604, a heat exchanger fourth joint 605, a hot water outlet 601, and a heating water outlet 602, see fig. 8; the plate heat exchanger 8 comprises a first interface 801, a second interface 802, a third interface 803 and a fourth interface 804, see fig. 8; the water pump interface 503 of the first valve body 5 is connected with the input end of the circulating water pump 4, the first joint 504 and the second joint 505 of the heat exchanger are correspondingly connected with the first interface 801 and the second interface 802 of the plate heat exchanger 8 respectively, the cold water inlet 501 is used for connecting an external water source, and the heating water return port 502 is used for connecting a water return port of a heating radiator; the water outlet port 603 of the second valve body 6 is connected with the heating water outlet pipe 3, the third joint 604 and the fourth joint 605 of the heat exchanger are correspondingly connected with the third joint 803 and the fourth joint 804 of the plate heat exchanger 8, respectively, the hot water outlet 601 is used for outputting hot water for daily use, and the heating water outlet 602 is used for connecting a water inlet of a heating radiator.

When cold water enters the first valve body 5 from the cold water inlet 501, the cold water is not directly conveyed to the furnace pipe 1 for heating, but enters the plate heat exchanger 8 through the first interface 801 of the plate heat exchanger 8, is subjected to heat exchange in the plate heat exchanger 8, is conveyed to the first valve body 5 again through the second interface 801, and is conveyed to the furnace pipe 1 for heating through the circulating water pump 4, and similarly, return water generated by a radiator connected externally enters the first valve body 5 from the heating return water port 2 and is pumped into the furnace pipe 1 for heating through the circulating water pump 4; the heated hot water in the furnace pipe 1 is output outwards through the heating water outlet pipe 3, the output hot water has two routes, firstly, the heated hot water is directly conveyed to a heating radiator through the heating water outlet 602 of the second valve body 6, secondly, the heated hot water enters the plate type heat exchanger 8 through the third interface 803, and after heat exchange is completed in the plate type heat exchanger 8, the heated hot water enters the second valve body 6 through the fourth interface 804, and the hot water used for life is conveyed outwards through the hot water outlet 601.

Referring to fig. 9, an electric heater 101 is arranged in the furnace pipe 1, a protective cover 102 is arranged at the tail end of the electric heater 101, the tail end of the electric heater 101 is completely covered, the electric wire and the tail of the electric heater 101 are prevented from being exposed, and after the protective cover 102 is added, a person can be prevented from touching the exposed electric wire in the maintenance process. The threading groove 103 has been seted up to protection casing 102 lateral wall, and the threading groove 103 of lateral wall extends to the opening part of protection casing 102 all the time, and the shape is the U-shaped, and preferred adoption three-phase electricity heats furnace pipe 1 in this embodiment, and then the number of threading groove 103 is three on the protection casing 102 for supply the power cord to penetrate, every threading groove 103 corresponds an electric wire, after fixing protection casing 102, can fix a position the electric wire, prevents that the electric wire is in disorder.

Because the normal water outlet temperature of the boiler is 100 ℃, if the normal water outlet temperature of the boiler is directly supplied to a user, the temperature is too high, the pipeline is easy to corrode, great hidden trouble is buried for later maintenance, and if the water outlet temperature of the boiler is reduced, the working efficiency of the boiler is influenced, so that the boiler cannot normally operate. When the primary concentrated hot water is cooled, the effect of impurities in the central heating pipeline can be overcome, the pipe is protected, and the service life is prolonged.

Further, the first valve body 5 is provided with a safety valve 506, when the pressure in a water circulation system (hereinafter referred to as water circulation system) of the wall-mounted electric boiler is too high, water in the water circulation system pushes the safety valve 506 open, and water is discharged from a pressure relief opening on the safety valve 506, so that the water circulation system is prevented from being damaged.

Further, the first valve body 5 is provided with a water flow switch 507 for monitoring the water pressure condition in the first valve body 5.

Further, a water replenishing port 508 is arranged at the lower portion of the first valve body 5, the water replenishing port 508 is arranged on the same side of the water flow switch 507, a water replenishing valve 509 is arranged on the water replenishing port 508, and after cold water enters the first valve body 5, when the water flow switch 507 monitors that the water pressure of the water circulation system is insufficient, the water replenishing valve 509 is controlled to enable the cold water to enter the water circulation system through the water replenishing port 508, so that water is replenished to the water circulation system, and the pressure in the water circulation system is constant.

Furthermore, an expansion water tank connecting pipe 9 is arranged above the first valve body 5, and the expansion water tank connecting pipe 9 is connected to the side of the first valve body 5 and used for connecting an expansion water tank arranged in the boiler.

Further, a three-way solenoid valve 606 is disposed at the upper portion of the second valve body 6, and the three-way solenoid valve 606 controls the outgoing path of the hot water from the furnace 1, and controls whether the hot water entering the second valve body 6 enters the plate heat exchanger 8 through the third joint 604 of the heat exchanger.

Furthermore, heating wet return 2 is located stove courage 1 lower part, and the stove courage 1 of being convenient for intakes, and heating outlet pipe 3 is located stove courage 1 upper portion, because the temperature of the interior top of stove courage 1 can be relatively more invariable, because the hot water temperature that flows out from stove courage 1 top is invariable, can not lead to the temperature of the interior outflow water of heating outlet pipe 3 to change because of increasing cold water in the stove courage 1.

A wall-hanging electric boiler, refer to fig. 10-14, including the water circulation system, body 10, supporting structure 11, expansion tank 12, electric system 13 and water channel base plate 14, in order to show the internal structure of the boiler, refer to fig. 10, remove the cover 1001 of the body 10, the furnace 1 and electric system 13 located on the right side are all fixed on the mounting plate 1101 of the supporting structure 11, the upper portion of the supporting structure has vents 1102 corresponding to the furnace 1, the body 10 wraps the furnace 1 and electric system 13 outside, the water channel base plate 14 is located at the bottom of the wall-hanging electric boiler, namely under the furnace 1, the body 10 also includes the control panel 15, the control panel 15 is set on the water channel base plate 14 in a reversible way, the expansion tank 12 is installed on the supporting structure 11, the water channel base plate 14 has cold water inlet 501, heating return 502, hot water outlet 601 and cold water inlet 1401 corresponding to heating outlet 602, Heating return water hole 1402, hot water apopore 1403 and heating apopore 1404, cold water inlet 1401, heating return water hole 1402, hot water apopore 1403, heating apopore 1404 all are located same straight line, refer to fig. 12, turn right from a left side and be in proper order for a plurality of holes that set up on the water route base plate: heating apopore 1404, hot water apopore 1403, cold water inlet 1401 and heating return water hole 1402, foretell each through-hole is located same straight line, and each through-hole all is located one side that control panel 15 was kept away from to water route base plate 14, the user is when connecting line like this, can be directly with the interface in each through-hole with external tube coupling, and need not to carry out the switching through elbow or hose, it is more convenient when the installation to let the user, refer to fig. 12, two interface outputs on left are the hot water, two interfaces on right side are cold water, can distinguish each interface very clear when the inspection like this, just also avoided touching the hot-water line and the problem of scald because of erroneous judgement.

Still be equipped with the inlet wire hole 1405 on the right side of water route base plate 14, the power cord passes the inlet wire, 1405 and the terminal on electric system 13 are connected, still be equipped with circulating water pump 4 mount pad 1406 on water route base plate 14's right side, be used for fixed circulating water pump 4, one side that water route base plate 14 is close to the through-hole is provided with down the supporting part 1407 of buckling, the height that buckles of supporting part 1407 is greater than the height of each through-hole, keep the level with the bottom of wall-hanging electric hanging stove simultaneously, be used for making wall-hanging electric boiler can be stable puts on the plane, the setting of supporting part 1407 can form a guard slot 1408 in water route base plate 14's bottom in addition, can prevent that each through-hole on water route base plate 14 from being broken by the plane when wall-hanging electric boiler is put on the plane, play the.

The waterway substrate 14 is provided with a circular inspection port 1409 and a water replenishing hole 1410 corresponding to the water replenishing valve 509, and the inspection port 1409 is directly communicated with the water circulation system and is used for an inspector to inspect the water circulation system. The electric heater 101 is inserted into the furnace pipe 1 from the lower part of the furnace pipe 1 so as to heat water in the furnace pipe 1, the electric heater 101 and the bottom of the furnace pipe 1 are mutually fixed, after the arrangement, the terminal of the electric heater 101 faces downwards, and the inspection port 1409 is positioned right below the terminal of the electric heater 101, which mainly considers that the electric heater 101 is a wearing part, and the inspection port 1409 is arranged at the position, so that the electric heater 101 can be very conveniently inspected, maintained and replaced. The diameter of the circular inspection opening 1409 is larger than the maximum diameter of the electric heater 101, so that the electric heater 101 can be replaced and maintained without detaching the casing of the electric heater 101.

The expansion tank connection pipe 9 is connected to the expansion tank 12, as shown in fig. 10, the expansion tank 12 is located at the back of the wall-mounted electric boiler, i.e., behind the furnace 1, and the expansion tank 12 functions as: when the temperature of water in the water circulation system rises, the volume of the water expands, the pressure of the water circulation system increases, and the extra water enters the expansion water tank 12; when the temperature of the water in the water circulation system drops, the water pressure in the expansion tank 12 returns to the heating water return pipe 2 to keep the water pressure in the water circulation system stable.

The preferred mode of the present invention has been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple variants all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and various possible combinations of the embodiments are not described in detail in order to avoid unnecessary repetition.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (9)

1. A water circulation system of a wall-mounted electric boiler comprises a furnace pipe, a heating water return pipe, a heating water outlet pipe and a circulating water pump, wherein one side of the heating water return pipe is connected with the furnace pipe, the other side of the heating water return pipe is connected with the output end of the circulating water pump and used for sending water into the furnace pipe, one side of the heating water outlet pipe is connected with the furnace pipe, the water circulation system is characterized by further comprising a first valve body, a second valve body, a bypass pipe and a plate heat exchanger, the input end of the circulating water pump is connected with the first valve body, one side of the plate heat exchanger is connected with the first valve body, the other side of the plate heat exchanger is connected with the second valve body, the other side of the heating water outlet pipe is connected with the second valve body, one side of the bypass pipe is connected with the first valve body, the other side of the bypass pipe is connected with, and a hot water outlet and a heating water outlet are arranged below the second valve body.

2. A water circulation system of a wall-mounted electric boiler according to claim 1, wherein the first valve body is provided with a safety valve.

3. A water circulation system of a wall-mounted electric boiler according to claim 2, wherein the first valve body is provided with a water flow switch.

4. The water circulation system of a wall-mounted electric boiler according to claim 3, wherein a water replenishing port is formed at the lower part of the first valve body, and a water replenishing valve is arranged on the water replenishing port.

5. The water circulation system of a wall-mounted electric boiler according to claim 4, wherein an expansion tank connection pipe is provided above the first valve body, and the expansion tank connection pipe is connected to a side of the first valve body.

6. The water circulation system of a wall-mounted electric boiler as claimed in claim 5, wherein the second valve body is provided with a three-way solenoid valve.

7. The water circulation system of a wall-mounted electric boiler according to claim 6, wherein the heating water return pipe is disposed at a lower portion of the furnace, and the heating water outlet pipe is disposed at an upper portion of the furnace.

8. A wall-mounted electric boiler comprising the water circulation system of a wall-mounted electric boiler according to any one of claims 1 to 7.

9. The wall-mounted electric boiler according to claim 8, comprising a housing, a fixing frame, an expansion tank, an electric system, and a water channel substrate, wherein the furnace pipe is fixed on the fixing frame, the housing covers the furnace pipe and the electric system, the water channel substrate is disposed under the fixing frame, the housing further comprises a control panel, the control panel is disposed on the water channel substrate in a reversible manner, and the expansion tank is mounted on the fixing frame, wherein the water channel substrate is respectively provided with a cold water inlet corresponding to the cold water inlet, a heating water return hole corresponding to the heating water return port, a hot water outlet corresponding to the hot water outlet, and a heating water outlet corresponding to the heating water outlet, and the cold water inlet, the heating water return hole, the hot water outlet, and the heating water outlet are all located on the same straight line, the expansion water tank connecting pipe is connected to the expansion water tank.