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CN-224220943-U - Positive pressure filter capable of continuously switching gas and liquid supply

CN224220943UCN 224220943 UCN224220943 UCN 224220943UCN-224220943-U

Abstract

The utility model discloses a positive pressure filter capable of continuously switching gas and liquid supply, which belongs to the technical field of positive pressure filters and comprises a main frame, wherein a gas and liquid input cover is fastened and fixed at the top end of the main frame, the gas and liquid input cover comprises a top cover frame, an air inlet valve pipe is fixed at the middle part of the top end of the top cover frame, an air outlet valve pipe is fixed at one side of the top cover frame, a pressure gauge is fixed at the top end of the air outlet valve pipe, and a liquid inlet valve pipe is fixed at the other side of the top surface of the top cover frame. This positive pressure filter passes through the built-in feed liquor valve pipe of top cap frame and pumps machine and filters liquid pipeline etc. carrier intercommunication to the hose propelling movement in the cooperation feed liquor valve pipe reaches the liquid outlet of telescopic tube bottom, thereby accomplishes the input to the filtration liquid that needs, and the in-process need not to demolish the top cap frame body, forms the switching that supplies liquid and air pressure to supply through flexible regulation and control, promotes filtration treatment efficiency, avoids the complicated and external impurity of flow that the traditional mode of demolishing caused to mix the phenomenon in the cavity.

Inventors

  • GUO HU
  • ZHANG ZHONGXIU
  • Kang Bingyan
  • CHENG YUANHANG
  • HU YUBING
  • WANG SUWEI
  • ZHANG GUANGPU
  • LIU GUIGAO
  • JIANG WEI

Assignees

  • 南京理工大学

Dates

Publication Date
20260512
Application Date
20250605

Claims (9)

  1. 1. Can cut positive pressure filter of gas-liquid supply in succession, its characterized in that sets up feed liquor valve pipe (205) on the top cap of positive pressure filter, the one end of feed liquor valve pipe (205) internal connection hose (208), the liquid outlet of telescopic tube (209) bottom is connected to the other end of hose (208), telescopic tank (210) have been seted up at the top center of telescopic tube (209), top one side of telescopic tube (209) is fixed with electric putter (211), the top of electric putter (211) is embedded in air inlet valve pipe (202) bottom one side, and inlet port (212) have been seted up to the bottom side of air inlet valve pipe (202), telescopic tube (209) are opened and shut inlet port (212) through the flexible.
  2. 2. The positive pressure filter capable of continuously switching the gas and liquid supply according to claim 1, wherein the positive pressure filter comprises a main frame (1), a gas and liquid input cover (2) is fastened and fixed at the top end of the main frame (1), the gas and liquid input cover (2) comprises a top cover frame (201), an air inlet valve pipe (202) is fixed at the middle part of the top end of the top cover frame (201), an air outlet valve pipe (203) is fixed at one side of the top surface of the top cover frame (201), a pressure gauge (204) is fixed at the top end of the air outlet valve pipe (203), and a liquid inlet valve pipe (205) is fixed at the other side of the top surface of the top cover frame (201).
  3. 3. Positive pressure filter with continuous switching of gas and liquid supply according to claim 1 or 2, characterized in that the liquid inlet valve tube (205) is fixed with a control panel (206) and a battery module respectively at both sides of the outside of the filter, the bottom end of the liquid inlet valve tube (205) is fixed with a liquid level probe (207), and the liquid level probe (207) is electrically connected with the control panel (206) and the battery module.
  4. 4. The positive pressure filter capable of continuously switching the supply of the gas according to claim 2, wherein the gas inlet valve pipe (202) and the gas outlet valve pipe (203) and the liquid inlet valve pipe (205) are fixedly connected with the top cover frame (201), and the bottom ends of the gas inlet valve pipe (202) and the gas outlet valve pipe (203) and the liquid inlet valve pipe (205) are communicated with the inside of the main frame (1).
  5. 5. The positive pressure filter capable of continuously switching the supply of the air liquid according to claim 1, wherein the telescopic sleeve (209) is in telescopic fit with the bottom end of the air inlet valve pipe (202) through the telescopic groove (210), and the air inlet holes (212) are symmetrically formed and communicated along two sides of the bottom end of the air inlet valve pipe (202).
  6. 6. A positive pressure filter capable of continuously switching a supply of a gas according to claim 3, wherein the telescopic tube (209) forms a telescopic structure with the bottom end of the gas inlet valve tube (202) through the electric push rod (211), and the electric push rod (211) is electrically connected with the control panel (206) and the battery module.
  7. 7. The positive pressure filter capable of continuously switching air supply according to claim 2, wherein the main frame (1) comprises a cylinder frame (101), handles (102) are fixed on the outer walls of two sides of the cylinder frame (101), clamping rings (103) are fixed at the upper end and the lower end of the cylinder frame (101), sealing rubber rings (104) are embedded in the inner walls of the clamping rings (103), lifting bolts (105) are distributed and connected around the clamping rings (103), a base (106) is clamped at the bottom of the cylinder frame (101), a discharging pipe (107) is connected to the center of the bottom end of the base (106), the top of the base (106) is mounted on the filter plate, and supporting frames (108) are distributed around the bottom end of the base (106).
  8. 8. The positive pressure filter of claim 7, wherein the bottom end of the support frame (108) is connected with a universal wheel (109).
  9. 9. The positive pressure filter capable of continuously switching the supply of the gas liquid according to claim 7, wherein the cylinder frame (101) is buckled with the base (106) through the clamping ring (103), and the eye bolts (105) are annularly distributed along the peripheral outer wall of the clamping ring (103).

Description

Positive pressure filter capable of continuously switching gas and liquid supply Technical Field The utility model relates to the technical field of positive pressure filters, in particular to a positive pressure filter capable of continuously switching the supply of air liquid. Background The positive pressure filter is also called a small mechanical filter, is processed by stainless steel, is a first-choice product for filtering liquid, clarifying and sterilizing treatment of small units such as small pharmaceutical factories, food and beverage, factories and mining hospitals and laboratories, is a device for realizing efficient filtration by maintaining the internal pressure higher than the external environment, is mainly used for purifying liquid or gas, has the core functions of intercepting impurities, ensuring the cleanliness of the fluid and preventing the leakage of the pollutants, and becomes key equipment in the fields of pharmacy, food, chemical industry and the like by virtue of the high efficiency, pressure resistance and flexible suitability of the filter. The existing cylindrical positive pressure filter is mainly divided into three parts, including a top cover, a middle cylinder and a base, an air inlet and an air outlet are formed in the top cover of the filter, a pressure gauge is connected to the air outlet, the pressure in the filtering process is kept controlled, a filter plate can be placed on the base, different filter membranes can be paved on the filter plate according to requirements for filtering, when the filter plate is operated, liquid to be filtered is poured into the middle cylinder after the top cover is partially opened, then the top cover is closed and fixed, at the moment, after the three parts are assembled and sealed, air is introduced and pressurized through an external air source, such as an air compressor and the like, or a pump continuously injects compressed air into a filtering cavity in the filter, an internal pressure environment higher than the ambient pressure is formed, so that a pressure gradient pushes fluid to be filtered to penetrate the filter membrane or filter cloth, and impurity interception is completed. When the liquid in the filter cavity is added after the filtration is finished, the lifting bolts around the top cover part are unscrewed one by one to be removed, so that the liquid can be poured again, the continuity is not strong during the liquid filtration treatment, the operation steps are more, the phenomenon that external impurities enter the filter cavity is easy to occur in the process of disassembling and adding, the filtering effect is influenced, and the quality problem is caused. Disclosure of Invention The utility model provides a positive pressure filter capable of continuously switching the supply of air liquid, which can realize the continuity of filtration without removing a top cover to add the filter liquid after the filtration is completed, and is more convenient to operate. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a but positive pressure filter of continuous switching gas-liquid supply, includes the main frame, the top lock of main frame is fixed with gas-liquid input lid, gas-liquid input lid includes the top cap frame, the top middle part of top cap frame is fixed with the admission valve pipe, one side of top cap frame is fixed with the air outlet valve pipe, the top of air outlet valve pipe is fixed with the manometer, the top surface opposite side of top cap frame is fixed with the feed liquor valve pipe, the both sides of feed liquor valve pipe are fixed with control panel and battery module respectively, the bottom mounting of feed liquor valve pipe has the liquid level probe, the one end of connecting hose in the feed liquor valve pipe, the liquid outlet of telescopic tube bottom is connected to the other end of hose, the expansion tank has been seted up at telescopic tube's top center, telescopic tube's top one side is fixed with electric putter, electric putter's top is embedded in admission valve pipe bottom one side, and the inlet port has been seted up to the bottom both sides of admission valve pipe. In the above structure, the air inlet valve pipe, the air outlet valve pipe and the liquid inlet valve pipe are fixedly connected with the top cover frame, and the bottom ends of the air inlet valve pipe, the air outlet valve pipe and the liquid inlet valve pipe are communicated with the inside of the main frame. The control panel is electrically connected with the battery module and the liquid level probe, and the inside of the liquid inlet valve tube is communicated with the bottom end of the telescopic tube through a hose. The telescopic sleeve is in telescopic fit with the bottom end of the air inlet valve pipe through the telescopic groove, and the air inlet holes are symmetrically formed and communicated along two sid