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Closed safety valve and electric water heater

A safety valve, closed type technology, used in safety valves, valve devices, balance valves, etc.

Pending Publication Date: 2017-05-31
ZHEJIANG DUNYUN INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve many defects of the existing open safety valve

Method used

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  • Closed safety valve and electric water heater
  • Closed safety valve and electric water heater
  • Closed safety valve and electric water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A closed safety valve comprising:

[0046] The safety valve body 1, the safety valve body 1 includes a water inlet channel 16, a water outlet channel 13 and a pressure relief channel 6, a partition 15 is provided between the water inlet channel 16 and the water outlet channel 13, and a water outlet hole 14 is provided on the partition 15 , one end of the pressure relief channel 6 communicates with the water inlet channel 16 and the water outlet channel 13 at the same time, wherein the pressure relief channel 6 communicates with the water inlet channel 16 through the pressure relief port 19;

[0047] The one-way water inlet component is arranged in the water outlet channel 13 and cooperates with the partition plate 15 to make the water flow from the water inlet channel 16 into the water outlet channel 13 in one direction;

[0048] The safety valve plug 3 includes a mounting portion 22 that is slidingly and sealingly engaged with the side wall of the pressure relief passa...

Embodiment 2

[0066] This embodiment discloses an electric water heater, including the closed safety valve mentioned in Embodiment 1.

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PUM

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Abstract

The invention discloses a closed safety valve and an electric water heater. The closed safety valve comprises a safety valve body, a one-way water inlet component, a safety valve choke plug and a pressure relief spring, wherein the safety valve body comprises a water inlet passage, a water outlet passage and a pressure relief passage, a partition board is arranged between the water inlet passage and the water outlet passage, a water outlet hole is formed in the partition board, and one end of the pressure relief passage is communicated with the water inlet passage and the water outlet passage at the same time; the one-way water inlet component is arranged in the water inlet passage; the safety valve choke plug comprises a mounting part in sliding seal fit with the side wall of the pressure relief passage, and a choke plug part; and the pressure relief spring is used for applying a pressure to the safety valve choke plug to make the choke plug part plug a pressure relief opening. According to the closed safety valve disclosed by the invention, on the premise of ensuring the safety of the liner of the electric water heater, the high pressure water of the safety valve body can flow back into the low pressure water inlet passage through the pressure relief opening, thereby generating no additional waste or damage to furniture or decoration, and the like; and the closed safety valve is a closed environment, and the water flowing by the valve cannot directly contact with the outside, thereby avoiding the situation of abnormal airflow sound.

Description

technical field [0001] The invention relates to the field of valves, in particular to a closed safety valve and an electric water heater. Background technique [0002] The safety valve is a special valve whose opening and closing parts are in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, it discharges the medium to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. . The safety valve belongs to the automatic valve category, and the control pressure does not exceed the specified value, which plays an important role in protecting personal safety and equipment operation. [0003] At present, the common safety valves on the market adopt an open pressure relief method, such as the safety valve installed in the electric water heater. When the water pressure in the inner tank of the electric water heater reaches...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/06
CPCF16K17/06
Inventor 冯余良周伟冬周天鹿
Owner ZHEJIANG DUNYUN INDAL
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