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CN-115727469-B - Medical air purifier

CN115727469BCN 115727469 BCN115727469 BCN 115727469BCN-115727469-B

Abstract

The invention discloses a medical air purifier, which comprises a shell and an air filter arranged in the shell, wherein the air filter comprises a shell, an air inlet, an air outlet and a mandrel vertically arranged in the center of the shell, a spiral guide plate which is screwed in along the axial direction of the mandrel is arranged between the shell and the mandrel, a particle counter and a control module are also arranged in the shell, the air outlet of the air filter is connected to the air inlet of an electromagnetic valve, two air outlets of the electromagnetic valve are correspondingly communicated with the particle counter and an air outlet through hole on the shell, and the control module generates a valve switching signal according to a set period to control the electromagnetic valve to open a gas channel between the air outlet of the air filter and the air outlet through hole on the shell or a gas channel between the electromagnetic valve and the particle counter. The invention can simultaneously avoid the condition that the air purifying effect is affected due to the fact that the filter element is replaced untimely due to the waste caused by frequent replacement of the filter element.

Inventors

  • HUANG MENGNAN
  • FENG PING

Assignees

  • 韦氏（苏州）医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20210805

Claims (7)

  1. 1. The medical air purifier comprises a shell (1) and an air filter (3) arranged in the shell (1), and is characterized in that the air filter (3) comprises a shell (31), an air inlet (32), an air outlet (33) and a mandrel (34) vertically arranged at the inner center of the shell (31), a spiral guide plate (35) which is arranged along the axial direction of the mandrel (34) in a screwing way is arranged between the shell (31) and the mandrel (34), the inner side end of the spiral guide plate (35) is connected with the outer wall of the mandrel (34), and the outer side end of the spiral guide plate is connected with the shell (31), so that a rotary cavity (36) surrounded by the shell (31), the spiral guide plate (35) and the mandrel (34) is formed; The rotary cavity (36) is internally filled with a filter element (37), the air inlet (32) is positioned at the upper part of the shell (31) and is communicated with the upper end of the rotary cavity (36), the air outlet (33) positioned at the bottom of the shell (31) is communicated with the lower end of the rotary cavity (36), a fan (38) is arranged below the rotary cavity (36), and the rotary pitch of the spiral guide plate (35) along the direction of the mandrel (34) is gradually increased, so that the thickness of the filter element (37) in the screwing direction of the rotary cavity (36) is gradually increased; The particle counter is characterized in that a particle counter (2) and a control module (5) are further arranged in the shell (1), the particle counter (2) is communicated with a region close to an air inlet (32) of the air filter (3) through a pipeline provided with a first electromagnetic valve (41), an air outlet (33) of the air filter (3) is connected to an air inlet of a second electromagnetic valve (42), two air outlets of the second electromagnetic valve (42) are correspondingly communicated with the particle counter (2) and an air outlet through hole in the shell (1), and the control module (5) generates a first valve on-off signal and a second valve switching signal according to a set period to control the opening and closing of the first electromagnetic valve (41) and control the second electromagnetic valve (42) to open an air channel between the air outlet (33) of the air filter (3) and the air outlet through hole in the shell (1) or an air channel between the two air outlets of the air filter and the particle counter (2).
  2. 2. The medical air purifier as set forth in claim 1, wherein the housing (1) is provided with a display screen (8) connected with the particle counter (2) for displaying particle content data of the gas before and after purification measured by the particle counter (2).
  3. 3. The medical air purifier as set forth in claim 1, wherein the housing (1) is provided with a light alarm (9) connected to the control module (5), the control module (5) compares the particle content values of the pre-purification gas and the post-purification gas from the particle counter (2), and when the difference between the particle content values of the pre-purification gas and the post-purification gas is lower than a set threshold value, an alarm signal for driving the light alarm (9) to emit light is generated.
  4. 4. The medical air purifier as set forth in claim 1, wherein the upper part of the housing (1) is provided with an air inlet through hole matched with an air inlet (32) on the shell (31), and the bottom of the housing (1) is provided with an air outlet through hole matched with the particle counter (2) and an air outlet (33) of the air filter (3).
  5. 5. Medical air purifier according to claim 1, characterized in that at least three steering wheels (6) are mounted on the lower surface of the housing (1).
  6. 6. A medical air purifier according to claim 5, characterized in that the steering wheel (6) is mounted on the housing (1) by means of a support beam (7).
  7. 7. A medical air cleaner according to claim 1, wherein the air inlet (32) is provided on a side surface of an upper portion of the housing (31).

Description

Medical air purifier Technical Field The invention relates to the field of medical equipment, in particular to a medical air purifier. Background The operating room is a place for providing operation and rescue for patients, and is an important technical department of hospitals. The operating room is connected with the operating room, is also adjacent to the blood warehouse, the guardian room, the anesthesia recovery room and the like, and is used for grasping the link management of four paths of infection of the operation incision, namely, the air of the operating room, the articles required by the operation, the fingers of doctors and nurses and the skin of patients, preventing the infection and ensuring the success rate of the operation. When the air cleanliness in the operating room does not meet the requirements, the air is filtered through an air filtering system, and the effectiveness of the filter element is the basis for guaranteeing the filtering quality. Disclosure of Invention The invention mainly aims to provide a medical environment later-period guarantee monitoring system, which can simultaneously avoid the conditions that the waste is caused by frequent replacement of a filter element and the air purifying effect is influenced due to untimely replacement of the filter element. In order to achieve the aim, the medical air purifier comprises a shell and an air filter arranged in the shell, wherein the air filter comprises a shell, an air inlet, an air outlet and a mandrel vertically arranged at the center in the shell, a spiral guide plate which is screwed in along the axial direction of the mandrel is arranged between the shell and the mandrel, the inner side end of the spiral guide plate is connected with the outer wall of the mandrel, and the outer side end of the spiral guide plate is connected with the shell, so that a rotary cavity surrounded by the shell, the spiral guide plate and the mandrel is formed; The rotary cavity is filled with a filter element, the air inlet is positioned at the upper part of the shell and is communicated with the upper end of the rotary cavity, the air outlet at the bottom of the shell is communicated with the lower end of the rotary cavity, a fan is arranged below the rotary cavity, and the rotary pitch of the spiral guide plate along the spindle direction is gradually increased, so that the thickness of the filter element in the precession direction of the rotary cavity is gradually increased; The particle counter is communicated with an area close to an air inlet of the air filter through a pipeline provided with a first electromagnetic valve, an air outlet of the air filter is connected to an air inlet of a second electromagnetic valve, two air outlets of the second electromagnetic valve are correspondingly communicated with the particle counter and an air outlet through hole on the shell, and the control module generates a first valve on-off signal and a second valve switching signal according to a set period to control the opening and closing of the first electromagnetic valve and control the second electromagnetic valve to open an air channel between the air outlet of the air filter and the air outlet through hole on the shell or an air channel between the air outlet of the air filter and the particle counter. The further improved scheme in the technical scheme is as follows: 1. In the scheme, the display screen connected with the particle counter is arranged on the shell and is used for displaying particle content data of the gas before and after purification measured by the particle counter. 2. In the scheme, the shell is provided with the light alarm connected with the control module, the control module compares the particle content values in the gas before and after purification from the particle counter, and when the difference value of the particle content in the gas before and after purification is lower than a set threshold value, an alarm signal for driving the light alarm to emit light is generated. 3. In the above scheme, the upper part of the shell is provided with an air inlet through hole matched with the air inlet on the shell, and the bottom of the shell is provided with an air outlet through hole matched with the particle counter and the air outlet of the air filter. 4. In the above scheme, at least three steering wheels are mounted on the lower surface of the shell. 5. In the above scheme, the steering wheel is mounted on the housing through a supporting beam. 6. In the above scheme, the air inlet is positioned on the side surface of the upper part of the shell. Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: 1. according to the medical air purifier, the air filter is provided with the spiral guide plate, the filtering path is prolonged in a small volume, the filtering effect is improved, and meanwhile, the rotation pitch of the spiral guide plate along the spind