A filtering device for polyol ester preparation

Abstract

The utility model discloses a kind of filtering devices for polyol ester preparation, including horizontally placed filter tank, it is provided with a filter cavity in filter tank interior, filter cavity whole is 8-shaped structure, movable filter press rotor is rotatably arranged in filter cavity, the cross section of movable filter press rotor is Luer triangle, the triangle of movable filter press rotor is always in the process of rotation with filter cavity inner wall movable seal fit, a transmission groove is vertically provided in movable filter press rotor interior, a transmission gear ring is fixedly installed in transmission groove, a transmission gear is provided in the middle of filter cavity inside transmission gear ring, transmission gear one side is always with transmission gear ring transmission connection, filter tank is respectively provided with a group of inlet and outlet in filter cavity both sides, outlet is provided with filter core. The utility model is characterized in that good filtering effect can be realized, and the filtering efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of polyol ester preparation technology, and in particular to a filtration device for polyol ester preparation. Background Technology

[0002] Polyol esters are base oils for air conditioning compressors, widely used in compressors for household, automotive, and large air conditioning units. They possess excellent viscosity-temperature characteristics and oxidation resistance, and exhibit good compatibility and matching performance with new-generation green and environmentally friendly refrigerants. Polyester ester synthetic oils have low volatility, high flash point, good thermal stability, and low-temperature fluidity, making them ideal base oils for lubricants. Among ester synthetic oils, complex esters have high viscosity and are easily biodegradable, making them more suitable as base oils for engine oils, refrigeration oils, and hydraulic oils with high environmental protection requirements. They also possess good boundary lubrication properties, making them suitable as both base oils and lubricating additives.

[0003] Existing polyester synthetic oils require filtration after preparation, but existing equipment has poor filtration performance and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device for the preparation of polyol esters, which can achieve good filtration effect and improve filtration efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A filtration device for preparing polyol esters, characterized in that it includes a horizontally placed filter tank, inside which is a filter cavity. The filter cavity has an overall figure-eight structure. A movable filter press rotor is rotatably mounted inside the filter cavity. The cross-section of the movable filter press rotor is a Reuleaux triangle. During rotation, the triangular part of the movable filter press rotor is always in a movable and sealed fit with the inner wall of the filter cavity. A transmission groove is vertically opened inside the movable filter press rotor. A transmission gear is fixedly installed in the transmission groove. A transmission gear is arranged inside the transmission gear in the middle of the filter cavity. One side of the transmission gear is always connected to the transmission gear. The filter tank has an inlet and an outlet on both sides of the filter cavity. A filter element is provided at the outlet.

[0007] Preferably, the top of the filter tank is sealed with a mounting cover plate by bolts, and a drive motor is fixedly installed in the middle of the mounting cover plate. The output end of the drive motor passes through the mounting cover plate and is connected and fixed to the drive gear.

[0008] Preferably, the inner diameter of the transmission gear ring of the movable filter press rotor is larger than the outer diameter of the transmission gear, and the transmission gear ring and the transmission gear are not concentrically arranged. The ratio of the number of teeth of the transmission gear to the number of teeth of the transmission gear ring is 2:3.

[0009] Preferably, each of the triangular portions of the movable filter press rotor is provided with a replaceable sealing plate, and the sealing plate is always in sealed contact with the inner wall of the filter chamber.

[0010] Preferably, replaceable arc-shaped sealing surfaces are fixedly provided on all three sides of the movable filter press rotor.

[0011] Preferably, a limiting step is provided near the filter chamber at the outlet, the filter element is clamped at the limiting step, and a limiting flange is fixedly connected to the outlet externally by bolts, the limiting flange being connected to an external collection pipe.

[0012] Preferably, the inlet is connected to a liquid inlet pipe, which is provided with a liquid inlet and a cleaning outlet.

[0013] Preferably, both the liquid inlet and the cleaning port are equipped with solenoid valves.

[0014] Preferably, multiple corresponding limiting grooves are provided between the outer side of the transmission gear ring and the inside of the movable filter press rotor. The multiple limiting grooves are equally spaced, and limiting cylinders are engaged in the corresponding limiting grooves inside the transmission gear ring and the movable filter press rotor.

[0015] In summary, the present invention has the following beneficial effects: the present invention can achieve rapid pressure filtration of polyol esters. At the same time, through the special filter chamber setting and the movable pressure filter rotor, the interior is divided into four sets of chambers. The four sets of chambers continuously realize the process of liquid inlet and liquid outlet during the circulation process, thereby achieving rapid filtration and higher filtration efficiency. Attached Figure Description

[0016] Fig. 1 This is a top view of the external structure of this utility model;

[0017] Fig. 2 This is a top view of the internal structure of this utility model;

[0018] Fig. 3 yes Fig. 2 A schematic diagram of the structure at point A in the middle. Detailed Implementation

[0019] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0020] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0021] like Figs. 1 to 3 The filter device for preparing polyol esters shown includes a horizontally placed filter tank 1, with a filter chamber 2 inside the filter tank 1. The filter chamber 2 has an overall figure-eight structure. A movable filter press rotor 3 is rotatably installed inside the filter chamber 2. The cross-section of the movable filter press rotor 3 is a Reuleaux triangle. During rotation, the triangular part of the movable filter press rotor 3 is always in a movable and sealed fit with the inner wall of the filter chamber 2. A transmission groove 4 is vertically opened inside the movable filter press rotor 3. A transmission gear ring 5 is fixedly installed in the transmission groove 4. A transmission gear 6 is set inside the transmission gear ring 5 in the middle of the filter chamber 2. One side of the transmission gear 6 is always connected to the transmission gear ring 5. The filter tank 1 has a set of inlets 7 and outlets 8 on both sides of the filter chamber 2. A filter element 9 is installed at the outlet 8.

[0022] A mounting cover plate 10 is bolted to the top of the filter tank 1. A drive motor 11 is fixedly mounted in the middle of the mounting cover plate 10. The output end of the drive motor 11 passes through the mounting cover plate 10 and is connected and fixed to the drive gear 6. The drive gear 6 drives the drive gear ring 5 and the movable filter press rotor 3 to rotate inside the filter tank 1.

[0023] The inner diameter of the transmission gear ring 5 of the movable filter press rotor 3 is larger than the outer diameter of the transmission gear 6, and the transmission gear ring 5 and the transmission gear 6 are not concentrically arranged. The ratio of the number of teeth of the transmission gear 6 to the number of teeth of the transmission gear ring 5 is 2:3.

[0024] Replaceable sealing plates 12 are provided at the triangular part of the movable filter press rotor 3. The sealing plates 12 are always sealed and fitted to the inner wall of the filter chamber 2, thereby ensuring that the chambers separated by the movable filter press rotor 3 in the filter chamber 2 are independently sealed to each other.

[0025] Replaceable arc-shaped sealing surfaces 13 are fixedly installed on three sides of the movable filter rotor 3. After long-term operation, the arc-shaped sealing surfaces 13 will rub against the wall of the filter chamber 2, causing wear. The replaceable arc-shaped sealing surfaces 13 facilitate later maintenance and replacement.

[0026] A limiting step 14 is provided near the filter chamber 2 at the outlet 8. The filter element 9 is clamped at the limiting step 14. A limiting flange 15 is fixedly connected to the outside of the outlet 8 by bolts. The limiting flange 15 is connected to the external collection pipe, which facilitates the installation of the filter element 9 and subsequent cleaning of the inside of the filter chamber 2.

[0027] The inlet 7 is connected to the liquid inlet pipe 16, which is equipped with a liquid inlet 17 and a cleaning port 18.

[0028] Solenoid valves 19 are installed at both the liquid inlet 17 and the cleaning port 18. The opening and closing of the liquid inlet 17 and the cleaning port 18 are controlled by the solenoid valves 19 to complete the sample injection or subsequent water addition and cleaning.

[0029] Multiple corresponding limiting grooves 20 are provided between the outer side of the transmission gear ring 5 and the inside of the movable filter press rotor 3. The multiple limiting grooves 20 are equidistantly spaced. A limiting cylinder 21 is locked in the corresponding limiting groove 20 inside the transmission gear ring 5 and the movable filter press rotor 3. The limiting cylinder 21 can realize the limiting and locking installation of the transmission gear ring 5, ensuring the stability of the internal structure and extending the service life of the overall device.

[0030] This invention enables rapid pressure filtration of polyol esters. Through a special filter chamber design and a movable pressure filter rotor, the interior is divided into four sets of chambers. During the cyclical movement of the four sets of chambers, liquid is continuously fed in and filtered out, thereby achieving rapid filtration and higher filtration efficiency.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A filtering device for polyol ester production, characterized by, The filter includes a horizontally placed filter canister with an internal filter chamber. The filter chamber has an overall figure-eight shaped structure. A movable filter press rotor is rotatably mounted inside the filter chamber. The cross-section of the movable filter press rotor is a Reuleaux triangle. During rotation, the triangular part of the movable filter press rotor is always in a movable and sealed contact with the inner wall of the filter chamber. A transmission groove is vertically opened inside the movable filter press rotor, and a transmission gear ring is fixedly installed in the transmission groove. A transmission gear is set inside the transmission gear ring in the middle of the filter chamber. One side of the transmission gear is always connected to the transmission gear ring. The filter canister has an inlet and an outlet on both sides of the filter chamber, and a filter element is installed at the outlet.

2. The filtering device for polyol ester production according to claim 1, characterized in that: The top of the filter tank is sealed with a mounting cover plate by bolts. A drive motor is fixedly installed in the middle of the mounting cover plate. The output end of the drive motor passes through the mounting cover plate and is connected and fixed to the drive gear.

3. The filtering device for polyol ester production according to claim 1, characterized in that: The inner diameter of the transmission gear ring of the movable filter press rotor is larger than the outer diameter of the transmission gear, and the transmission gear ring and the transmission gear are not concentrically arranged. The ratio of the number of teeth of the transmission gear to the number of teeth of the transmission gear ring is 2:

3.

4. The filtration device for preparing polyol esters according to claim 1, characterized in that: Each of the triangular sections of the movable filter press rotor is equipped with a replaceable sealing plate, which is always in a sealed and tight fit with the inner wall of the filter chamber.

5. The filtering device for polyol ester production according to claim 1, characterized in that: The movable filter press rotor is fixedly equipped with replaceable arc-shaped sealing surfaces on three sides.

6. The filtering device for polyol ester production according to claim 1, characterized in that: A limiting step is provided near the filter chamber at the outlet, and the filter element is clamped at the limiting step. A limiting flange is fixedly connected to the outlet externally by bolts, and the limiting flange is connected to the external collection pipe.

7. The filtering device for polyol ester production according to claim 1, characterized in that: The inlet is connected to a liquid inlet pipe, which is provided with a liquid inlet and a cleaning outlet.

8. A filtration device for preparing polyol esters according to claim 7, characterized in that: Solenoid valves are installed at both the liquid inlet and the cleaning port.

9. The filtering device for polyol ester production according to claim 1, characterized in that: Multiple corresponding limiting grooves are provided between the outer side of the transmission gear ring and the inside of the movable filter press rotor. The multiple limiting grooves are equally spaced, and limiting cylinders are locked in the corresponding limiting grooves inside the transmission gear ring and the movable filter press rotor.

Images