CN210004582U

CN210004582U - Hot-Water System with two modes of circulation and direct heating

Info

Publication number: CN210004582U
Application number: CN201920167625.5U
Authority: CN
Inventors: 方真健; 陈龙
Original assignee: Extek Energy Equipment Zhejiang Ltd
Current assignee: Zhejiang Intech Technology Co., Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-01-31
Anticipated expiration: 2029-01-30

Abstract

The utility model relates to a hot-water heating system field especially relates to hot-water heating system of two kinds of modes of direct heat of area circulation hot-water heating system of two kinds of modes of direct heat of area circulation, including water tank, the direct heat of circulation mix hydraulic module and host computer, be equipped with the heat exchanger in the host computer, be connected through the circulation water route between water tank, the direct heat of circulation mix hydraulic module and the host computer, be equipped with the water pump that is used for providing power to its internal medium in the circulation water route, the direct heat of circulation mixes hydraulic module including installing the check valve between water tank liquid outlet end and host computer inlet end to and connect the moisturizing pipe in the circulation water route between check valve and the host computer, and install micro-gap switch on the moisturizing pipe.

Description

Hot-Water System with two modes of circulation and direct heating

Technical Field

The utility model relates to a hot-water heating system field especially relates to hot-water heating system of two kinds of modes of direct heating of area circulation.

Background

The existing hot water system is divided into a direct heating type and a circulating heating type according to the form of providing hot water; the direct-heating type water heater has the advantages that direct-heating type heating, namely cold water directly enters the heat pump water heater, the heat pump water heater outputs hot water to a user or a water tank side, the water heater has the advantages of being efficient, energy-saving, small in heat preservation water tank and the like, control is complex, outlet temperature is not stable easily, the pressure of tap water supply in all regions of the country is different, the inlet temperature range from winter to summer is large, and the outlet temperature is given to bring great challenges.

The mode that the circulation heating type instant heat pump water heater heats cold water in the heat preservation water tank to a set temperature through a circulation heating mode has the advantages of being simple to control, reliable in system and the like, when the water temperature reaches a high level, the operation environment of a compressor is severe, the energy efficiency ratio is low, the side of the water supplementing and heat preservation water tank is used by a user, the temperature of the water tank is easily and rapidly reduced due to cold water supplementing and stirring of a circulating pump to the whole water tank when the user uses the water tank, for example, 15L of hot water is discharged from a 50L water tank with the water temperature kept at 50 ℃, and 5 ℃ of cold water is supplemented at the same time, the water temperature in the water tank is 35 x 50+15 x 5/50-36.5 ℃, the whole water temperature of the water tank is lower than 40 ℃, the water cannot be normally used by the user, and therefore the utilization rate of the water tank is usually lower than 30% actually, in addition, if too much water is stored in the heat preservation.

Based on the defects of the prior art, the applicant discloses a hot water system with two modes of circulating direct heating in the patent technology ZL201520091691.0, a three-way valve is arranged in a circulating direct heating mixed hydraulic module in the prior patent scheme, in the direct heating mode, the flow direction of water sequentially passes through a water replenishing pipe, a heat exchanger and the three-way valve and flows out from a liquid outlet end of the three-way valve, parts of hot water enters a water tank, parts of hot water passes through the one-way valve and then is mixed with replenishing water to enter a lower circulation mode for 2 times, the water temperature of the water tank is 45 ℃, the circulation flow of the system is 50L/min, the water discharge flow and the water replenishing flow of the system are both 10L/min, the temperature of the hot water flowing out from a liquid outlet end of the three-way valve under the structure is 45 ℃, the flow is 50L/min, the water temperature of the hot water entering the water tank is 45 ℃ for 40L/min, the hot water passes through the one-way valve and then flows into the water tank through 10L/min, the water tank, the water circulation loop is manufactured, the water flow rate of the water tank is increased, the water flow of the water in the water tank is increased, the water flow of the water tank, the water flow of the water of the three-way valve, the water tank is increased, the water of the water tank, the water of the water tank is increased, the water tank, the water of the water tank, the water of the.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide hot water system with two modes of circulating and direct heating, which not only can reduce the cost, but also can reduce the energy consumption.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A hot water system with two modes of circulating direct heating comprises a water tank, a circulating direct heating mixed hydraulic module and a host, wherein a heat exchanger is arranged in the host, the water tank, the circulating direct heating mixed hydraulic module and the host are connected through a circulating water path, a water pump for providing power for internal media is arranged in the circulating water path, the circulating direct heating mixed hydraulic module comprises a one-way valve arranged between a liquid outlet end of the water tank and a liquid inlet end of the host, a water replenishing pipe connected on the circulating water path between the one-way valve and the host, and a microswitch arranged on the water replenishing pipe.

Preferably, the circulating direct-heating mixed hydraulic module further comprises an expansion water tank and a safety valve, the expansion water tank is connected to the second pipe section between the one-way valve and the main machine through a branch pipe, and the safety valve is arranged on the branch pipe.

Preferably, the water pump is arranged in the circulating direct-heating mixed hydraulic module or the main machine.

A hot water system with two modes of circulating direct heating comprises a water tank and a host machine, wherein the water tank is connected with the host machine through a circulating water circuit, a heat exchanger, a water pump for providing power for internal media of the host machine, and a circulating direct heating mixed hydraulic module arranged between the liquid inlet end of the host machine and the liquid inlet end of the heat exchanger are arranged in the host machine, and the circulating direct heating mixed hydraulic module comprises a one-way valve arranged on the circulating water circuit in the host machine, a water replenishing pipe arranged on the circulating water circuit between the one-way valve and the heat exchanger, and a microswitch arranged on the water replenishing pipe.

Preferably, the circulating direct-heating mixed hydraulic module further comprises an expansion water tank and a safety valve, the expansion water tank is connected to a circulating water path between the one-way valve and the heat exchanger through a branch pipe, and the safety valve is arranged on the branch pipe.

A hot water system with two modes of circulating direct heating comprises a water tank, a circulating direct heating mixed hydraulic module and a main machine, wherein the water tank is connected with the circulating direct heating mixed hydraulic module through a circulating water path, the circulating direct heating mixed hydraulic module comprises a heat exchanger, a one-way valve and a water pump which are arranged on the circulating water path inside the circulating direct heating mixed hydraulic module, the one-way valve is arranged on the circulating water path at the liquid outlet end of the water tank and the liquid inlet end of the heat exchanger, a water replenishing pipe is arranged on the circulating water path between the one-way valve and the heat exchanger, and a microswitch is arranged on the water replenishing pipe, a loop is formed between the main machine and the heat exchanger through a medium channel, and the medium channel.

The utility model adopts the above technical scheme, above technical scheme provides the hot-water heating system's of two kinds of modes of direct heating of area circulation three kinds of implementation modes. In the hot water system, a water tank, a circulating direct-heating mixed hydraulic module and a host machine are arranged between the water tank and the circulating direct-heating mixed hydraulic module; or the water tank is connected with the main machine or the water tank is connected with the circulating direct-heating mixed hydraulic module through a circulating water path, and the circulating water path is limited by a one-way valve to only flow in one way; compared with the prior art, the scheme has the difference that the three-way valve and the branch thereof in the circulating direct-heating mixed hydraulic module are eliminated. Therefore, under the direct heating mode operation of this scheme, the cold water that the moisturizing mouth flowed in gets into the heat exchanger after, and the direct heating is to hot water, gets into the water tank and supplies the use of draining, and whole process need not pass through the water pump energy supply. Therefore, the scheme can not only reduce the cost, but also reduce the energy consumption for use.

Drawings

Fig. 1 is a schematic view of a hot water system in a circulation mode in embodiment 1.

Fig. 2 is a schematic view of the hot water system in embodiment 1 in a direct heating mode.

Fig. 3 is a schematic view of the hot water system in the circulation mode in embodiment 2.

Fig. 4 is a schematic view of the hot water system in embodiment 2 in a direct heating mode.

Fig. 5 is a schematic view of the hot water system in the circulation mode in embodiment 3.

Fig. 6 is a schematic view of the hot water system in embodiment 3 in a direct heating mode.

Note: in the figure, a is the liquid outlet end of the host; d is the liquid inlet end of the host; b is the liquid inlet end of the water tank; c is the liquid outlet end of the water tank; e is the liquid inlet end of the heat exchanger; f is the liquid outlet end of the heat exchanger; g is a water replenishing port of the water replenishing pipe.

Detailed Description

The preferred embodiment of the present invention will now be described in further detail at with reference to the accompanying drawings.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention .

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only 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 therefore, should not be construed as limiting the present invention.

Example 1:

the hot water system with two modes of circulating direct heating as shown in the figures 1-2 comprises a water tank 1, a circulating direct heating mixed hydraulic module 2 and a host 3, wherein a heat exchanger 4 is arranged inside the host 3, the water tank 1, the circulating direct heating mixed hydraulic module 2 and the host 3 are connected through a circulating water path, and a water pump 26 for providing power for internal media is arranged in the circulating water path.

In addition, the circulation direct-heating hybrid hydraulic module 2 further comprises an expansion water tank 24 and a safety valve 25, wherein the expansion water tank 24 is connected to a second pipe section 42 between the check valve 21 and the main machine 3 through a branch pipe, and the safety valve 25 is arranged on the branch pipe. When the heated volume of the water in the system is increased, the expansion water tank 1 is used for storing and decompressing water. The expansion tank 24 is used to replenish the system with water and supply pressure as the chilled volume of water in the system decreases. Thereby ensuring the normal and safe operation of the system.

The specific usage pattern of this embodiment is as follows:

1) circulation mode: i.e. the water inside the water tank 1 is first heated according to the needs of the user. At this time, the main machine 3 and the water pump are started, and the micro switch 23 on the water replenishing pipe 22 is disconnected. The flow direction of water flows out from the liquid outlet end a of the host 3, flows into the water tank 1 from the liquid inlet end b of the water tank after passing through the circulating direct-heating mixed hydraulic module, flows out from the liquid outlet end c of the water tank in the water tank 1, then flows back to the liquid inlet end d of the host 3 after passing through the one-way valve 21, namely hot water in the water tank 1 enters the host 3 to be heated and then returns to the water tank 1, and is heated for multiple times in a circulating mode until the water temperature reaches the set temperature.

2) Direct heating mode: when the water tank 1 starts to discharge water, the water temperature detected by the temperature probe in the water tank 1 reaches the opening condition of the host 3, the host 3 is opened, the water pump is not opened, and the micro switch 23 is closed. Water flows into the circulating direct-heating mixed hydraulic module from the water replenishing port g, then flows into the main machine 3 from the liquid inlet end d of the main machine, flows out from the liquid outlet end a of the main machine, and flows into the water tank 1 from the liquid inlet end b of the water tank after passing through the circulating direct-heating mixed hydraulic module. Namely, the cold water flowing from the water replenishing port enters the main machine 3, and then is directly heated to hot water, and enters the water tank 1 for water discharging. Based on the assumed service environment in the background technology, the water temperature of the water tank 1 is assumed to be 45 ℃, the circulating flow rate is 50L/min when the circulating water path operates, and the water discharge flow rate and the water supplement flow rate of the system are both 10L/min. Under the condition, the water pump can be turned off in the direct heating mode, the microswitch 23 is turned on, 10L/min and 10 ℃ cold water introduced by the water supplementing pipe is directly heated to 45 ℃ through the host machine 3, the water pump does not work in the process, and the flow of the circulating water path is 10L/min. Therefore, the scheme can not only reduce the cost, but also reduce the energy consumption for use.

Example 2:

as shown in figures 3 and 4, the embodiment relates to hot water system with two modes of circulating direct heating, the hot water system comprises a water tank 1 and a main machine 3, the water tank 1 is connected with the main machine 3 through a circulating water path, a heat exchanger 4 is arranged in the main machine 3, a water pump 26 for providing power for media in the main machine 3, and a circulating direct heating mixed hydraulic module 2 located between the liquid inlet end of the main machine 3 and the liquid inlet end of the heat exchanger 4, the circulating direct heating mixed hydraulic module 2 comprises a check valve 21 arranged on the circulating water path in the main machine 2, a water replenishing pipe 22 arranged on the circulating water path between the check valve 21 and the heat exchanger 4, and a microswitch 23 arranged on the water replenishing pipe 22.

In addition, the circulating direct-heating mixed hydraulic module 2 further comprises an expansion water tank 24 and a safety valve 25, the expansion water tank 24 is connected to a circulating water path between the one-way valve 21 and the heat exchanger 4 through a branch pipe, and the safety valve 25 is arranged on the branch pipe.

Compared with the embodiment 1, the difference of the hot water system is that the heat exchanger 4, the circulating direct-heating mixed hydraulic module 2 and the water pump 26 are arranged inside the main machine in the embodiment, namely, the heat exchanger is connected with the water tank 1 in an -body machine mode, and the use principle of the whole hot water system is not substantially influenced, so the implementation steps and the implementation effects of the circulating mode and the direct-heating mode are similar to those of the embodiment 1, and the description is not repeated.

Example 3:

as shown in fig. 5 and 6, the present embodiment relates to hot water systems with two modes of circulating direct heat, which includes a water tank 1, a circulating direct heat mixing hydraulic module 2 and a main unit 3, wherein the water tank 1 is connected with the circulating direct heat mixing hydraulic module 2 through a circulating water path, the circulating direct heat mixing hydraulic module 2 includes a heat exchanger 4, a check valve 21 and a water pump 26, the heat exchanger 4 is disposed on the circulating water path inside the main unit, the check valve 21 is disposed on the circulating water path between a liquid outlet end of the water tank 1 and a liquid inlet end of the heat exchanger 4, a water replenishing pipe 22 is disposed on the circulating water path between the check valve 21 and the heat exchanger 4, and a microswitch 23 is mounted on the water replenishing pipe 22, a loop is formed between the main unit 3 and the heat exchanger 4 through a medium channel, and heat exchange is.

The difference of this hot water system compared to example 1 is that: in the embodiment, the circulating direct-heating mixed hydraulic module 2 not only comprises a one-way valve 21, a water replenishing pipe 22, a microswitch 23, an expansion water tank 24 and a safety valve 25, but also integrates the heat exchanger 4 and a water pump 26 in the circulating direct-heating mixed hydraulic module 2. In this case, the circulating direct-heat mixed hydraulic module 2 may be understood as an indoor unit, and the main unit 3 may heat water in the circulating water path by performing medium heat exchange only with the heat exchanger 4 in the indoor unit as the outdoor unit. The principle of the whole hot water system is not substantially affected, so the implementation steps and the implementation effects of the circulation mode and the direct heating mode are similar to those of the embodiment 1, and will not be described in detail herein.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

The hot water system with two modes of circulating direct heating is characterized by comprising a water tank (1), a circulating direct heating mixed hydraulic module (2) and a host (3), wherein a heat exchanger (4) is arranged in the host (3), the water tank (1), the circulating direct heating mixed hydraulic module (2) and the host (3) are connected through a circulating water path, a water pump (26) for providing power for internal media is arranged in the circulating water path, the circulating direct heating mixed hydraulic module (2) comprises a one-way valve (21) arranged between a liquid outlet end of the water tank (1) and a liquid inlet end of the host (3), a water replenishing pipe (22) connected to the circulating water path between the one-way valve (21) and the host (3), and a microswitch (23) arranged on the water replenishing pipe (22).
2. Hot water System with two modes of direct heating circulation according to claim 1, characterized in that the circulating direct heating hybrid hydro module (2) further comprises an expansion tank (24) and a safety valve (25), the expansion tank (24) is connected to the second pipe section (42) between the check valve (21) and the main unit (3) through a branch pipe, and the safety valve (25) is arranged on the branch pipe.
3. Hot water System with two modes of circulating direct heating according to claim 2, characterized in that the water pump (26) is arranged in the circulating direct heating hybrid hydro module (2) or the main machine (3).
The hot water system with two modes of circulating direct heating is characterized by comprising a water tank (1) and a host (3), wherein the water tank (1) is connected with the host (3) through a circulating water path, a heat exchanger (4), a water pump (26) for providing power for media in the host (3), a circulating direct heating mixed hydraulic module (2) located between a liquid inlet end of the host (3) and a liquid inlet end of the heat exchanger (4), the circulating direct heating mixed hydraulic module (2) comprises a one-way valve (21) arranged on the circulating water path in the circulating direct heating mixed hydraulic module, a water replenishing pipe (22) arranged on the circulating water path between the one-way valve (21) and the heat exchanger (4), and a microswitch (23) arranged on the water replenishing pipe (22).
5. The hot water system with two modes of circulating direct heating according to claim 4, wherein the circulating direct heating hybrid hydraulic module (2) further comprises an expansion tank (24) and a safety valve (25), the expansion tank (24) is connected to the circulating water path between the check valve (21) and the heat exchanger (4) through a branch pipe, and the safety valve (25) is arranged on the branch pipe.
The hot water system with two modes of circulating direct heating is characterized by comprising a water tank (1), a circulating direct heating mixed hydraulic module (2) and a host (3), wherein the water tank (1) is connected with the circulating direct heating mixed hydraulic module (2) through a circulating water path, the circulating direct heating mixed hydraulic module (2) comprises a heat exchanger (4), a one-way valve (21) and a water pump (26), the heat exchanger (4), the one-way valve (21) and the water pump (26) are arranged on the circulating water path inside the circulating water system, the one-way valve (21) is arranged on the circulating water path at the liquid outlet end of the water tank (1) and the liquid inlet end of the heat exchanger (4), a water replenishing pipe (22) on the circulating water path between the one-way valve (21) and the heat exchanger (4) and a microswitch (23) arranged on the water replenishing pipe (22), a loop is formed between the host (3) and the heat exchanger (4) through a medium.
7. The hot water system with two modes of circulating direct heating as claimed in claim 6, wherein the circulating direct heating hybrid hydro module (2) further comprises an expansion tank (24) and a safety valve (25), the expansion tank (24) is connected to the circulating water path between the check valve (21) and the heat exchanger (4) through a branch pipe, and the safety valve (25) is arranged on the branch pipe.