Electric heating jacket of cylindrical filter

Abstract

The utility model discloses an electric heating jacket of a cartridge filter, which belongs to the technical field of cartridge filter heating and comprises a first steel shell, a second steel shell and a lock catch mechanism. The first steel shell and the second steel shell are both in a semi-arc shape, one end of the first steel shell is hinged to one end of the second steel shell, the lock catch mechanism is arranged at the ends, away from the hinged position, of the first steel shell and the second steel shell, and PTC heating pieces are fixedly connected to the outer walls of the first steel shell and the second steel shell. The PTC electric heater is composed of the safe and stable PTC electric heating piece, the protective layer formed by the first steel shell and the second steel shell which are formed by stainless steel precision machining and polishing, and the heat preservation layer formed by the high-temperature-resistant rubber and plastic, the structure is compact, disassembly and assembly are convenient, the heat exchange efficiency is high, and the service life of the PTC electric heating piece is prolonged. The requirements of sanitary environment and safe use of a biopharmaceutical workshop can be met through mutual matching.

Description

Technical Field

[0001] The utility model relates to the technical field of cartridge filter heating, in particular to an electric heating sleeve of a cartridge filter. Background Art

[0002] Pharmaceutical companies often use various cartridge filters to filter liquids, vapors and other substances in their production workshops. In order to avoid condensation in the filter, which would affect the filter efficiency and quality, an electric heating kit is added to the outer layer of the finished filter to heat the filter, improve its filtration efficiency and enable it to filter liquids and vapors more quickly.

[0003] At present, most of the stainless steel cartridge filters adopt blanket-wrapped electric heating type. These blanket-wrapped electric heating mainly relies on electric heating wires, which are prone to over-temperature due to control failure and burn out the filter element inside. They cannot fully guarantee the requirements for safe use in high-level sanitary environments.

[0004] Based on this, the utility model designs an electric heating sleeve of a cartridge filter to solve the above problems. Summary of the invention

[0005] The utility model aims to provide an electric heating sleeve for a cartridge filter to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric heating sleeve of a cartridge filter, comprising: a first steel shell, a second steel shell and a locking mechanism; the first steel shell and the second steel shell are both semicircular arc-shaped, one end of the first steel shell and one end of the second steel shell are hinged, the locking mechanism is arranged at one end of the first steel shell and the second steel shell away from the hinge, the outer walls of the first steel shell and the second steel shell are both fixedly connected with a PTC heating sheet, and high-temperature resistant rubber and plastic are respectively arranged between the first steel shell and the second steel shell and the PTC electric heating sheet.

[0007] Preferably, the locking mechanism comprises a main placement block, a secondary placement block, a connecting column and a hand-operated locking column, the main placement block is fixed to one end of the first steel shell, and the secondary placement block is fixed to one end of the second steel shell.

[0008] Preferably, one end of each of the main placement block and the auxiliary placement block is provided with an opening, a connecting column is rotatably connected in the opening of the main placement block, and one end of the connecting column is fixedly connected to a hand-operated clamping column.

[0009] Preferably, a cover plate is provided between the first steel shell and the second steel shell, an outer wall of the cover plate is provided with an integrally formed round protrusion, and a rubber ring is fixedly connected to the outer wall of the round protrusion of the cover plate.

[0010] Preferably, both ends of the first steel shell facing the second steel shell are fixedly connected with vertical rubber strips.

[0011] Preferably, the outer wall of the first steel shell is provided with an external wire.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the protective layer is formed by a safe and stable PTC electric heating plate, a first steel shell and a second steel shell that are precisely machined and polished with stainless steel, and an insulation layer formed by high-temperature resistant rubber and plastic. The structure is compact and the heat exchange efficiency is high. The mutual cooperation can meet the requirements of safe use in the sanitary environment of the biopharmaceutical workshop.

[0013] The first steel shell and the second steel shell are hinged and rotatable, and the locking mechanism is used to facilitate disassembly and assembly and quickly apply to the cylindrical filter;

[0014] When dismantling for maintenance and storage, the rubber ring parts of the two covers are used in conjunction with the rubber strips to seal and protect the PTC heating plates of the first steel shell and the second steel shell to prevent impurities and dust from adhering and contaminating, which would affect the effect of reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0017] Figure 2 This is a schematic diagram showing the use of the cover plate in this embodiment;

[0018] Figure 3 This is a schematic diagram showing the structure of the locking mechanism of this embodiment;

[0019] Figure 4 This is a schematic diagram of a PTC heater wrapped around a filter to highlight this embodiment;

[0020] Figure 5 The schematic diagram of the structure of the first steel shell and the second steel shell is highlighted for this embodiment.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. First steel shell; 2. Second steel shell; 3. Main mounting block; 4. Auxiliary mounting block; 5. Connecting column; 6. Hand-operated clamp column; 7. High temperature resistant rubber and plastic; 8. PTC heating sheet; 9. Cover plate; 10. Rubber ring; 11. Rubber strip; 12. External wiring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: an electric heating sleeve of a cartridge filter, comprising: a first steel shell 1, a second steel shell 2 and a locking mechanism; the first steel shell 1 and the second steel shell 2 are both semicircular, one end of the first steel shell 1 and the other end of the second steel shell 2 are hinged, the locking mechanism is arranged at one end of the first steel shell 1 and the second steel shell 2 away from the hinge, the outer walls of the first steel shell 1 and the second steel shell 2 are both fixedly connected with a PTC heating sheet, and a high temperature resistant rubber plastic 7 is arranged between the first steel shell 1 and the second steel shell 2 and the PTC electric heating sheet 8 respectively;

[0025] The first steel shell 1 and the second steel shell 2 are made of stainless steel 304, and the outer surface is precisely processed and polished to protect the PTC electric heater 8 and the high temperature resistant rubber and plastic 7. The first steel shell 1 and the second steel shell 2 are hinged in a semicircular arc shape and can be rotated to open and close. It is more convenient and quick to disassemble and assemble the cylindrical filter through the locking mechanism. The PTC heating sheet is a sheet-like thermistor, which can better wrap the heating part of the cylindrical filter, and cooperate with the high temperature resistant rubber and plastic 7 to make the heating process more stable and safe.

[0026] Preferably, the locking mechanism comprises a main placement block 3, a secondary placement block 4, a connecting column 5 and a hand-operated card column 6, the main placement block 3 is fixed to one end of the first steel shell 1, and the secondary placement block 4 is fixed to one end of the second steel shell 2;

[0027] The locking mechanism is based on a main placement block 3 fixed to the first steel shell 1 and a secondary placement block 4 fixed to the second steel shell 2, and is matched with the installation and clamping of a connecting column 5 and a hand-operated clamping column 6.

[0028] Preferably, one end of the main placement block 3 and the auxiliary placement block 4 are both provided with an opening, a connecting column 5 is rotatably connected in the opening of the main placement block 3, and one end of the connecting column 5 is fixedly connected to a hand-operated card column 6;

[0029] Both the main placement block 3 and the auxiliary placement block 4 are provided with relatively smooth openings, and the connection between the connecting column 5 and the hand-driven card column 6 is also relatively smooth. The hand-driven card column 6 can be manually rotated to allow one end of the connecting column 5 to enter the opening of the auxiliary placement block 4. At the same time, the end of the hand-driven card column 6 connected to the connecting column 5 will abut against one end of the auxiliary placement block 4, thereby achieving the purpose of locking the closed first steel shell 1 and the second steel shell 2. A little force is required to peel the connecting column 5 and the hand-driven card column 6 off the auxiliary placement block 4.

[0030] Preferably, a cover plate 9 is provided between the first steel shell 1 and the second steel shell 2, and an outer wall of the cover plate 9 is provided with an integrally formed round convex block, and a rubber ring 10 is fixedly connected to the outer wall of the round convex block of the cover plate 9;

[0031] The cover plate 9 is used when the first steel shell 1 and the second steel shell 2 are removed for storage. The upper and lower ports of the first steel shell 1 and the second steel shell 2 can be inserted into the rubber ring 10 of the cover plate 9 to increase the sealing ability during storage.

[0032] Preferably, both ends of the first steel shell 1 facing the second steel shell 2 are fixedly connected with vertical rubber strips 11;

[0033] The rubber strip 11 is used to increase the sealing ability of the gap between the first steel shell 1 and the second steel shell 2 when they are closed.

[0034] Preferably, the outer wall of the first steel shell 1 is provided with an external connection line 12;

[0035] The external wire 12 is connected to the PTC electric heater 8 of the first steel shell 1 and the second steel shell 2 through electric wires for externally connecting a control power source.

[0036] A specific application of this embodiment is: when installing and using, the two hand-operated clamping columns 6 of the locking mechanism can be toggled, and the connecting column 5 can be rotated to leave the opening of the auxiliary placement block 4, so that the first steel shell 1 or the second steel shell 2 can be rotated, and the semi-circular first steel shell 1 and the second steel shell 2 can be directly sleeved on the cylindrical filter, so that the PTC electric heating sheet 8 of the first steel shell 1 and the second steel shell 2 is wrapped and closely attached to the outer wall of the filter, and then the hand-operated clamping column 6 of the locking mechanism is toggled to cooperate with the connecting column 5 to be clamped at the opening of the auxiliary placement block 4, so that the first steel shell 1 and the second steel shell 2 can be firmly clamped on the filter;

[0037] The first steel shell 1 and the second steel shell 2 are polished after precision machining, and the appearance is neat and clean, and can withstand disinfection with common disinfectants in the workshop, and there is no thermal deformation or discoloration after long-term use. The PTC heater 8 is a thermistor. Even if the control fails, when the temperature reaches 140°C, the PTC resistance rises sharply to achieve the purpose of circuit breaking, and will not cause damage to the filter element inside;

[0038] When dismantled for maintenance and storage, the first steel shell 1 or the second steel shell 2 can be rotated, and the rubber ring 10 parts of the two cover plates 9 can be respectively stuck in the upper and lower ports of the first steel shell 1 and the second steel shell 2, and the rubber strip 11 at the connection between the first steel shell 1 and the second steel shell 2 can be matched to seal and protect the PTC electric heater 8 of the first steel shell 1 and the second steel shell 2, so as to reduce the pollution caused by the adhesion of impurities and dust, which will affect the effect of reuse.

[0039] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric heating jacket for a cartridge filter, comprising: A first steel shell (1), a second steel shell (2) and a locking mechanism; characterized in that the first steel shell (1) and the second steel shell (2) are both semi-circular, one end of the first steel shell (1) and one end of the second steel shell (2) are hinged, the locking mechanism is arranged at one end of the first steel shell (1) and the second steel shell (2) away from the hinge, the outer walls of the first steel shell (1) and the second steel shell (2) are both fixedly connected with a PTC heating plate, and a high-temperature resistant rubber and plastic (7) is arranged between the first steel shell (1) and the second steel shell (2) and the PTC electric heating plate (8).

2. The electric heating jacket of a cartridge filter according to claim 1, characterized in that: The locking mechanism comprises a main placement block (3), a secondary placement block (4), a connecting column (5) and a hand-operated locking column (6); the main placement block (3) is fixed to one end of the first steel shell (1), and the secondary placement block (4) is fixed to one end of the second steel shell (2).

3. The electric heating jacket of a cartridge filter according to claim 2, characterized in that: The main placement block (3) and the auxiliary placement block (4) are both provided with an opening at one end, a connecting column (5) is rotatably connected in the opening of the main placement block (3), and a hand-operated clamping column (6) is fixedly connected at one end of the connecting column (5).

4. The electric heating jacket of a cartridge filter according to claim 1, characterized in that: A cover plate (9) is provided between the first steel shell (1) and the second steel shell (2), the outer wall of the cover plate (9) being provided with an integrally formed round protrusion, and the outer wall of the round protrusion of the cover plate (9) being fixedly connected with a rubber ring (10).

5. The electric heating jacket of a cartridge filter according to claim 1, characterized in that: Both ends of the first steel shell (1) facing the second steel shell (2) are fixedly connected with vertical rubber strips (11).

6. The electric heating jacket of a cartridge filter according to claim 1, characterized in that: The outer wall of the first steel shell (1) is provided with an external wire (12).

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