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Zero-cold-water water heater

A water heater and zero-cold water technology, which is applied in the direction of water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of large water flow of water heaters, insufficient flow of water, and insufficient diameter of circulating pumps, etc., to save floor space Management costs, saving the cost of the whole machine, and high water pressure resistance

Pending Publication Date: 2018-01-12
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem of insufficient water flow in the open circuit state of the zero-cold water heater in the prior art. The present invention proposes a zero-cold water heater
When the water heater is in an open circuit, that is, the circulation pump is not running, the water flows through the circulation pump and the parallel pipeline to join the internal water inlet pipeline. At this time, the water heater has a large water flow, which overcomes the insufficient diameter of the circulation pump. The problem

Method used

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Embodiment 1

[0030] In this embodiment, the water heater is a gas water heater. Those skilled in the art can predict that the pipeline structure of the present invention is also suitable for other types of water heaters, such as electric water heaters. The arrows in the figures indicate the direction of water flow.

[0031] like figure 1 As shown in the figure, a zero-cold water water heater of the present invention includes a water heater body 1, a circulating pump 2, a split three-way valve 3, a confluence three-way valve 4, a first one-way valve 5, a water inlet connector 7, a water outlet connector 8, a heat exchange 9, internal water inlet pipeline 10 and internal water outlet pipeline 11. The inner water inlet pipeline 10 is communicated with the water inlet joint 7 , and the inner water outlet pipeline 11 is communicated with the water outlet joint 8 . The circulating pump 2 is installed on the internal water inlet pipe 10 of the water heater body 1 , and the water outlet directi...

Embodiment 2

[0036] The basic structure of the water heater in Embodiment 2 is the same as that in Embodiment 1, except that the water inlet pipeline is changed.

[0037] like Figure 4 As shown, a water return joint 18 is provided outside the water heater body 1, a bypass branch 17 is provided on the water inlet pipeline of the circulating pump 2 to communicate with the return water joint 18, and the bypass branch 17 is provided with The third one-way valve 19, the conduction direction of the third one-way valve 19 is consistent with the direction of the water flow from the return water joint 18 to the water inlet end of the circulating pump 2.

[0038] like Figure 5 As shown, during installation, a backwater three-way valve 20 is provided at the hot water pipeline 12 near the water equipment 14 , and the backwater three-way valve 20 is communicated with the backwater joint 18 through the backwater pipeline 21 . Therefore, the water stored in the hot water pipeline 12 can flow back to ...

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Abstract

The invention relates to the technical field of water heaters, in particular to a zero-cold-water water heater. The zero-cold-water water heater comprises a main body, a heat exchange device mounted in the main body, an internal water inlet pipeline with a water inlet joint, and an internal water outlet pipeline with a water outlet joint; a circulating pump is arranged on the internal water inletpipeline; a water outlet direction of the circulating pump in an operating state is consistent with a water flowing direction of the internal water inlet pipeline; a parallel pipeline is connected toa water inlet end and a water outlet end of the circulating pump; a first one-way valve is arranged on the parallel pipeline; and the first one-way valve enables water currents to flow from the waterinlet end of the circulating pump to the water outlet end of the circulating pump. The water heater can overcome the problem of insufficient water passing flow in an open-circuit state of a water heater with a zero cold water function in the prior art.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a zero-cold water water heater. Background technique [0002] At present, the water circuit structure of zero cold water gas water heaters on the market is divided into two-pipe scheme (without return water joint) and three-pipe scheme (with return water joint). like Figure 7 , 8 As shown in the figure, a zero-cold water gas water heater with a two-pipe scheme is used, and a circulating pump 2 is connected in series with the water circuit in the machine. like Figure 7 As shown, when the water heater is in the open-circuit state, the circulating pump does not run, and the open-circuit water flow is affected by the diameter of the circulating pump. like Figure 8 As shown, when the water heater is in circulation preheating, the closed circuit flow depends on the size of the circulation pump. [0003] like Figure 9 , 10 As shown, the zero-cold water gas water heater u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/10F24H9/18F24H9/12
Inventor 郭灵华邓飞忠王克军仇明贵潘叶江
Owner VATTI CORP LTD
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