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CN-122004655-A - Bypass time sequence control-based automatic exhaust device and method for filter element of water dispenser

CN122004655ACN 122004655 ACN122004655 ACN 122004655ACN-122004655-A

Abstract

The invention discloses an automatic exhaust device and method of a water dispenser filter element based on bypass time sequence control, and relates to the field of water dispenser equipment, wherein the automatic exhaust device is applied to a water dispenser with a main control board, a water pump and the filter element and comprises a three-way joint and a one-inlet one-outlet normally-closed electromagnetic valve, wherein the three-way joint is provided with a first port, a second port and a third port, the first port is used for being connected with a water outlet of the water pump, and the second port is used for being connected with a water inlet of the filter element, so that the three-way joint is connected in series with a main water supply pipeline from the water pump to the filter element; the automatic exhaust device and the method for the filter element of the water dispenser based on bypass time sequence control can efficiently exhaust gas, eliminate air resistance and not influence main water supply through the bypass exhaust and time sequence control combined design.

Inventors

  • CHEN XIANFENG
  • CHEN JUNLING
  • LIU DAPENG
  • PENG MIN

Assignees

  • 广州骏丰医疗器械有限公司

Dates

Publication Date
20260512
Application Date
20260402

Claims (9)

  1. 1. Automatic exhaust device of water dispenser filter core based on bypass timing control, automatic exhaust device is applied to in the water dispenser that has main control board (1), suction pump (2) and filter core (3), its characterized in that, automatic exhaust device includes: a three-way connection (4), the three-way connection (4) having a first port, a second port and a third port, wherein the first port is used for being connected with a water outlet of the water pump (2), and the second port is used for being connected with a water inlet of the filter element (3), so that the three-way connection (4) is connected in series with a main water supply pipeline from the water pump (2) to the filter element (3); The normally closed electromagnetic valve (5) is provided with a water inlet, a water outlet and a driving coil, wherein the driving coil is used for being electrically connected with the control output end of the main control board (1), the water inlet is connected with the third port of the three-way joint (4) through a branch pipeline, and the water outlet of the normally closed electromagnetic valve (5) is used for being led out as an exhaust port.
  2. 2. The automatic exhaust device for the filter element of the water dispenser based on bypass time sequence control according to claim 1, wherein the main control board (1) is configured to output a high-level pulse signal with the duration of T to the driving coil to open the normally closed electromagnetic valve (5) for exhausting when receiving a pumping command, stop outputting the signal after the duration of T is finished to enable the normally closed electromagnetic valve (5) to be closed, and then start the water pump (2).
  3. 3. The automatic exhaust device for the water dispenser filter element based on the bypass time sequence control according to claim 2, wherein the main control board (1) is further configured to wait for a preset confirmation delay after stopping outputting the signal to the driving coil and before starting the water pump (2).
  4. 4. The automatic exhaust device of the water dispenser filter element based on bypass time sequence control according to claim 1, wherein the water outlet of the normally closed electromagnetic valve (5) is led to a waste water collecting container (6) of the equipment or the outside through an exhaust pipeline.
  5. 5. The automatic exhaust device of the water dispenser filter element based on bypass time sequence control according to claim 1, wherein the normally closed electromagnetic valve (5) is of a power-off normally closed structure, an internal valve core of the normally closed electromagnetic valve in a power-off state seals a passage between a water inlet and a water outlet under the action of a spring, and the valve core moves against the spring force to conduct the passage after power is obtained.
  6. 6. The automatic exhaust device for the water dispenser filter element based on bypass time sequence control according to claim 1, wherein the connection positions of the three-way joint (4) and the water outlet of the water pump (2) and the water inlet of the filter element (3) and the connection positions of the branch pipeline and the third port of the three-way joint (4) and the water inlet of the normally closed electromagnetic valve (5) are respectively provided with a sealing structure, and the sealing structure is a sealing ring, a quick-plug sealing joint or a hot melt sealing layer.
  7. 7. The automatic exhaust device of the water dispenser filter element based on bypass time sequence control according to claim 1, wherein the water dispenser is an instant heating type water dispenser, a direct drinking machine or a spectrum water therapeutic apparatus, the three-way joint (4), the branch pipeline, the normally closed electromagnetic valve (5) and the exhaust pipeline form an independent exhaust bypass structure, and the exhaust bypass structure is adaptively connected with a main water supply pipeline system of the instant heating type water dispenser, the direct drinking machine or the spectrum water therapeutic apparatus.
  8. 8. The automatic exhaust device of a water dispenser filter element based on bypass time sequence control of claim 7, wherein the pipeline of the exhaust bypass structure is a food-grade wading hose.
  9. 9. An automatic exhaust method of a water dispenser filter element (3) based on bypass time sequence control, which is characterized by being applied to the automatic exhaust device as claimed in any one of claims 1 to 8, and comprising the following steps: S1, in a standby state of the water dispenser, keeping a normally closed electromagnetic valve (5) to be powered off and closed, and communicating a water suction pump (2) with a filter element (3) through a three-way joint (4) by a main water path; S2, when the main control board (1) of the water dispenser receives a water pumping instruction, a high-level pulse signal is output to the driving coil of the electromagnetic valve, so that the electromagnetic valve is opened, and a bypass channel from a third port of the three-way connector (4) to the exhaust port through the bypass pipeline and the electromagnetic valve is formed; s3, within a preset time T when the electromagnetic valve is opened, discharging air in a front pipeline of the filter element (3) and an upper cavity of the filter element (3) through the bypass channel by utilizing gravity and residual pressure difference of the system; S4, after the preset time T is over, stopping outputting a signal to the electromagnetic valve, closing the electromagnetic valve, and starting the water suction pump (2) after short delay, so that water flow enters the filter element (3) airless and works normally; And S5, after the water pumping task is finished, the water pump (2) is stopped, and the system is restored to a standby state to wait for the next water pumping instruction.

Description

Bypass time sequence control-based automatic exhaust device and method for filter element of water dispenser Technical Field The invention relates to the technology of drinking water equipment, in particular to an automatic exhaust device and method for a filter element of a water dispenser based on bypass time sequence control. Background In drinking water equipment such as instant heating type drinking water machines, direct drinking water machines, spectrum water therapeutic apparatuses and the like which are provided with a water suction pump and a filter element, a main water supply pipeline at the front end of the filter element is a core area for gas accumulation. When the device is started to pump water again, the accumulated gas can impact the filter screen of the filter element along with water flow at high speed, the pores of the filter material are blocked instantaneously to form air resistance, thus directly leading to unstable water flow of the device, obvious noise and vibration in the working process, idle running of the water pump caused by air blockage and incapability of pumping water normally when serious. The device with high requirements on water flow stability and continuity such as a spectrum water therapeutic instrument can directly influence the use effect and operation reliability of the device due to the air blockage of the filter element, and becomes a technical pain point to be solved in industry. The current solving methods for the filter element air blocking problem in the industry comprise the following steps: 1) Part scheme is at integrated mechanical type air discharge valve (like ball-cock type exhaust structure) in filter core top, and this kind of structure relies on the floater buoyancy to realize exhausting, and is slow to trace gas response, and after long-term and drinking water contact, floater, case easily appear the jamming inefficacy because of the incrustation scale is attached, and exhaust stability is poor, still can increase the structural complexity of filter core, improves the production and the replacement cost of filter core. 2) The normal-way exhaust valve is arranged at the highest point of the water supply system in part of the scheme, and the automatic exhaust can be realized, but the normal-way exhaust channel can cause chronic water loss of drinking water, and meanwhile, external dust, microorganisms and other pollutants easily reversely invade a pipeline system through the exhaust channel to damage water supply sanitation and do not meet the sanitation standard of the involved electric appliances. 3) A few schemes are used for realizing exhaust control by connecting the electromagnetic valve in the main water supply pipeline in series, the electromagnetic valve is in the main water path for a long time, extra pipeline resistance can be brought to water flow even in an open state, the water outlet efficiency of equipment is reduced, the normal water supply performance of the main water path is influenced, and the requirements of the serial structure on the drift diameter and pressure resistance of the electromagnetic valve are higher, so that the overall manufacturing cost of the equipment is increased. 4) In addition, very few schemes adopt pressure and flow sensors to cooperate with a controller to realize closed-loop control of exhaust, although the exhaust strategy can be adjusted according to pipeline states, the addition of the sensors not only improves the hardware cost of equipment, but also increases the complexity of a control system, the detection errors and faults of the sensors can directly lead to exhaust failure, the overall operation stability of the equipment is reduced, and the method is not suitable for the design requirements of low cost and high reliability of household and small-sized commercial drinking water equipment. In summary, the prior art lacks a simple structure and reliable control, and the exhaust scheme of accurately and efficiently exhausting accumulated gas in the front end pipeline of the filter element can not change the original filter element and main waterway structure of the drinking water equipment, but also can accurately and efficiently exhaust the accumulated gas on the premise of not increasing the main waterway resistance. Disclosure of Invention The invention aims to provide an automatic exhaust device and method for a filter element of a water dispenser based on bypass time sequence control, which are used for solving the problems of slow response, easy failure and water loss or pollution caused by the existing exhaust scheme. In order to achieve the purpose, the invention provides the technical scheme that the automatic exhaust device for the filter element of the water dispenser based on bypass time sequence control is applied to the water dispenser with a main control board, a water pump and the filter element, and comprises the following components: The three-way joint is provided with a first p