Steam filtering device of heat pump type scraper evaporator

Abstract

The utility model discloses a steam filtering device of a heat pump type scraper evaporator, which relates to the technical field of steam filtering and comprises a bottom plate, a filtering box is mounted at the upper end of the bottom plate, a vertical plate is mounted at the rear part of the upper end of the bottom plate, an air inlet pipe is fixedly sleeved in the vertical plate, the front end of the air inlet pipe is movably connected with a rotary joint, and the rotary joint is fixedly connected with the bottom plate. The front end of the rotary joint is movably connected with an L-shaped pipe, the L-shaped pipe is movably inserted into the filter box, the left end and the right end of the filter box are jointly and fixedly connected with a U-shaped pipe in a penetrating manner, the U-shaped pipe is connected with an exhaust pipe, and a screen is mounted in the middle of the inner wall of the filter box. The second motor, the worm, the worm gear, the lead screw and the dredging needle are arranged to be matched with one another to dredge the screen, all-directional cleaning of the screen can be completed, manual cleaning of workers is not needed, and the operation steps and the labor amount of the workers are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam filter technology field, especially relate to a steam filter device of heat pump type scraper evaporator. BACKGROUND

[0002] Scraper evaporator, it is a very strong new evaporator of adaptability, for example, high viscosity, heat sensitivity and easy crystallization, scale material are all applicable. It is mainly composed of heating jacket and scraper, heating jacket is passed through, and the scraper is equipped on the rotatable shaft, and the scraper and the inner wall of the heating jacket keep very small gap, usually 0.5-1.5mm. The liquid is added by evaporation from the upper part along the tangent direction, under the action of gravity and rotating scraper, the distribution in the inner wall forms the thin film of descending, and is evaporated and concentrated in the descending process, and the liquid is discharged from the bottom, and the secondary steam is overflowed from the top, in some cases, this evaporator can evaporate the solution, and the solid product is directly obtained at the bottom, when the steam is discharged, it needs to be filtered through the filter device.

[0003] The existing steam filter device is mostly filtered through the screen when in use, after a certain period of use, impurities are easy to block the screen, affect normal filtration, need to clean the screen manually, the process of manual cleaning is relatively tedious, increases the operation steps and labor of workers, cannot continue to filter steam when cleaning, affects work efficiency, needs further improvement, therefore, a steam filter device of heat pump type scraper evaporator is provided. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a steam filter device of heat pump type scraper evaporator, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A steam filter device of heat pump type scraper evaporator, comprising a bottom plate, a filter box is installed at the upper end of the bottom plate, a vertical plate is installed at the upper end of the bottom plate, an air inlet pipe is fixedly sleeved in the vertical plate, a rotary joint is movably connected to the front end of the air inlet pipe, an L-shaped pipe is movably connected to the front end of the rotary joint, the L-shaped pipe is movably inserted into the filter box, a U-shaped pipe is movably connected to the left end and the right end of the filter box, an air outlet pipe is connected to the U-shaped pipe, a screen is installed on the inner wall of the filter box, two moving plates are movably connected to the upper part of the front inner wall and the upper part of the rear inner wall of the filter box, a plurality of dredging needles are installed on the lower end of each moving plate, and the two moving plates can alternately drive the dredging needles on the left and right sides to enter the screen.

[0007] Preferably, the upper end of the two moving plates is provided with a lead screw, the two lead screws are movably inserted into the upper side of the filter box, the upper end of the filter box is provided with a second motor, the output end of the second motor is fixedly connected with a worm, the worm is meshingly connected with two left and right distributed worm gears, the two worm gears are threadedly sleeved on the two lead screws, and the worm gears are rotationally connected with the upper end of the filter box.

[0008] Preferably, the left end of the worm is movably connected with a supporting seat, and the supporting seat is mounted on the filter box.

[0009] Preferably, the outer surface of the two lead screws is movably sleeved with a telescopic cover, and the telescopic cover is mounted between the upper end of the moving plate and the lower wall of the filter box.

[0010] Preferably, the rear end of the filter box is provided with a first motor, the output end of the first motor is fixedly connected with a second gear, the second gear is meshingly connected with a first gear, and the first gear is fixedly sleeved on the outer surface of the L-shaped pipe.

[0011] Preferably, the front end of the filter box is provided with an access door.

[0012] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0013] 1. The second motor, the worm, the worm gear, the lead screw and the dredging needle are cooperated to dredge the screen, during use, the second motor is controlled to drive the worm to rotate, the worm drives the worm gears to rotate, the left worm gear drives the left lead screw to move downwards, the right worm gear drives the right lead screw to move upwards, the left lead screw drives the left moving plate and the dredging needle to enter the screen hole of the screen, and the impurities in the left area are pushed out of the screen, the steam is filtered through the right side of the screen at this time, after dredging, the second motor is controlled to rotate reversely, so that the left worm gear drives the left lead screw to move upwards, and the right worm gear drives the right lead screw to move downwards, so that the screen can be cleaned in all directions, the manual cleaning of workers is not needed, the operation steps and the labor amount of the workers are reduced, the steam can be continuously filtered during cleaning, and the working efficiency is ensured.

[0014] 2. The first motor, the first gear and the second gear are cooperated to drive the L-shaped pipe to rotate, during use, the first motor is controlled to drive the second gear to rotate, the second gear drives the first gear and the L-shaped pipe to rotate, so that the steam is discharged to different areas of the screen, and the possibility of blockage can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The whole structure is shown in the embodiment;

[0016] Figure 2It is another perspective structure schematic view in the embodiment;

[0017] Figure 3 It is an enlarged structure schematic view at A in the embodiment;

[0018] Figure 4 It is a sectional structure schematic view of the filter box in the embodiment;

[0019] Figure 5 It is a structure schematic view of each component on the moving plate in the embodiment.

[0020] In the figure: 1, bottom plate; 2, filter box; 3, access door; 4, U-shaped pipe; 5, lead screw; 6, exhaust pipe; 7, vertical plate; 8, air inlet pipe; 9, rotary joint; 10, L-shaped pipe; 11, first gear; 12, second gear; 13, first motor; 14, screen; 15, moving plate; 16, dredging needle; 17, telescopic cover; 18, worm; 19, second motor; 20, worm wheel; 21, support seat. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific embodiments.

[0022] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like are the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the utility model. The indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] As Figures 1-5As shown, a steam filtering device of a heat pump type blade evaporator includes a bottom plate 1, a filter box 2 is installed at the upper end of the bottom plate 1, a vertical plate 7 is installed at the rear upper end of the bottom plate 1, an air inlet pipe 8 is fixedly sleeved in the vertical plate 7, a rotary joint 9 is movably connected to the front end of the air inlet pipe 8, an L-shaped pipe 10 is movably connected to the front end of the rotary joint 9, the L-shaped pipe 10 is movably inserted into the filter box 2, a U-shaped pipe 4 is movably inserted into and fixedly connected to the left end and the right end of the filter box 2, an air outlet pipe 6 is connected to the U-shaped pipe 4, a screen 14 is installed on the inner wall of the filter box 2, the U-shaped pipe 4 is above the screen 14, in use, the air inlet pipe 8 is connected to the steam outlet pipe of the heat pump type blade evaporator, steam enters the L-shaped pipe 10 through the air inlet pipe 8, enters the filter box 2 through the L-shaped pipe 10, is filtered by the screen 14, and then is discharged into the condenser through the U-shaped pipe 4 and the air outlet pipe 6. After a certain period of use, impurities will block the screen 14, affecting normal filtering, and the screen needs to be manually cleaned. The manual cleaning process is relatively cumbersome, increasing the operation steps and labor of workers, and the steam cannot be filtered continuously during cleaning, affecting work efficiency.

[0025] In order to solve the above-mentioned disadvantages, two left-right symmetrical moving plates 15 are movably connected to the front inner wall upper portion and the rear inner wall upper portion of the filter box 2, a plurality of dredging needles 16 are installed at the lower ends of the two moving plates 15, the dredging needles 16 are matched with the screen holes of the screen 14, in use, the two moving plates 15 are alternately moved downward, and the impurities in the screen holes of the screen 14 are pushed out by the dredging needles 16.

[0026] To automatically move the movable plates 15 up and down, lead screws 5 are installed at the upper ends of both movable plates 15. The threads of the two lead screws 5 are opposite in direction, and both lead screws 5 are movably inserted into the upper side of the filter box 2. A second motor 19 is installed at the upper end of the filter box 2. A worm gear 18 is fixedly connected to the output end of the second motor 19. The worm gear 18 is meshed with two worm wheels 20 distributed to the left and right. The two worm wheels 20 are threaded onto the two lead screws 5 respectively. The worm wheels 20 are rotatably connected to the upper end of the filter box 2. A support seat 21 is movably connected to the left end of the worm gear 18. The support seat 21 is installed on the filter box 2 and is used to support the rotation of the worm gear 18. In use, the second motor 19 is controlled to drive the worm gear 18 to rotate, and the worm gear 18 drives the two worm wheels 20 to rotate simultaneously. Since the threads of the two lead screws 5 are opposite in direction, the worm wheel 20 on the left side rotates more smoothly. The left screw 5 moves vertically downwards, while the right worm gear 20 moves the right screw 5 vertically upwards. The left screw 5 drives the left moving plate 15 and the unclogging needle 16 into the sieve holes of the screen 14, pushing impurities from the left side of the screen 14 out. Steam is then filtered through the right side of the screen 14. After unclogging, the second motor 19 is controlled to rotate in the reverse direction, causing the left worm gear 20 to drive the left screw 5 upwards and the right worm gear 20 to drive the right screw 5 downwards, cleaning the right side of the screen 14. This completes the all-around cleaning of the screen 14. After cleaning, the motor 19 is controlled to rotate in the reverse direction again, causing the two moving plates 15 to reset. This eliminates the need for manual cleaning, reducing the number of steps and workload for workers. At the same time, steam can continue to be filtered during cleaning, ensuring work efficiency.

[0027] Based on the above scheme, in order to prevent steam from overflowing from the connection between the lead screw 5 and the filter box 2, a telescopic cover 17 is movably fitted on the lower part of the outer surface of both lead screws 5. The telescopic cover 17 is installed between the upper end of the moving plate 15 and the lower wall of the filter box 2. When the lead screw 5 moves downward, the telescopic cover 17 is stretched, and when the lead screw 5 moves upward, the telescopic cover 17 is compressed.

[0028] In addition, since the steam is discharged vertically upward from the L-shaped pipe 10, most of the steam screen 14 only passes through the central area of the screen 14, and long-term use will cause the central area of the screen 14 to be severely blocked, affecting filtration. Therefore, the rear end of the filter box 2 is provided with a first motor 13, the output end of the first motor 13 is fixedly connected with a second gear 12, the second gear 12 is engagedly connected with a first gear 11, the first gear 11 is fixedly sleeved on the outer surface of the L-shaped pipe 10, the first motor 13 is controlled to drive the second gear 12 to rotate, the second gear 12 drives the first gear 11 to rotate, and the first gear 11 drives the L-shaped pipe 10 to rotate under the support of the rotary joint 9. After a certain period of time, the first motor 13 is controlled to rotate reversely, so that the L-shaped pipe 10 reversely rotates. Similarly, the output end of the first motor 13 is continuously controlled to rotate in the forward and reverse directions, so that the L-shaped pipe 10 swings back and forth, so that the steam is discharged to different areas of the screen 14. The possibility of clogging can be effectively prevented, and the local area of the screen is accumulated with moisture or impurities. When cleaning, the first motor 13 is controlled to drive the L-shaped pipe 10 to open downward, so that the debris is prevented from falling into the L-shaped pipe 10.

[0029] In order to facilitate the cleaning of the debris at the bottom of the filter box 2, a rotatable access door 3 is arranged at the front end of the filter box 2.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vapour filtering device for a heat pump type screed evaporator, comprising a floor (1), characterised in that: The upper end of the bottom plate (1) is provided with a filter box (2), the rear upper end of the bottom plate (1) is provided with a vertical plate (7), the inside of the vertical plate (7) is fixedly provided with an air inlet pipe (8), the front end of the air inlet pipe (8) is movably connected with a rotary joint (9), the front end of the rotary joint (9) is movably connected with an L-shaped pipe (10), the L-shaped pipe (10) is movably inserted into the filter box (2), the left end and the right end of the filter box (2) are movably connected with a U-shaped pipe (4) through the joint of the fixed insertion, the U-shaped pipe (4) is connected with an exhaust pipe (6), the inner wall of the filter box (2) is provided with a screen (14), the front inner wall and the rear inner wall of the filter box (2) are movably connected with two moving plates (15) which are symmetrically distributed on the left and right sides, the lower end of each of the two moving plates (15) is provided with a plurality of dredging needles (16), and the two moving plates (15) can alternately drive the dredging needles (16) on the left and right sides to enter the screen (14).

2. The vapor filter apparatus for a heat pump strip evaporator of claim 1, wherein: The upper end of each of the two moving plates (15) is provided with a lead screw (5), and the two lead screws (5) are movably inserted into the upper side of the filter box (2), the upper end of the filter box (2) is provided with a second motor (19), the output end of the second motor (19) is fixedly connected with a worm (18), the worm (18) is meshingly connected with two worm gears (20) which are distributed on the left and right sides, and the two worm gears (20) are respectively threadedly sleeved on the two lead screws (5), and the worm gears (20) are rotatably connected with the upper end of the filter box (2).

3. The vapor filter apparatus for a heat pump strip evaporator of claim 2, wherein: The left end of the worm (18) is movably connected with a supporting seat (21), and the supporting seat (21) is installed on the filter box (2).

4. The vapor filter apparatus for a heat pump type screed evaporator as recited in claim 2, wherein: The outer surface of each of the two lead screws (5) is movably sleeved with an expansion cover (17), and the expansion cover (17) is installed between the upper end of the moving plate (15) and the lower wall of the filter box (2).

5. The vapor filter apparatus for a heat pump strip evaporator of claim 1, wherein: The rear end of the filter box (2) is provided with a first motor (13), the output end of the first motor (13) is fixedly connected with a second gear (12), the second gear (12) is meshingly connected with a first gear (11), and the first gear (11) is fixedly sleeved on the outer surface of the L-shaped pipe (10).

6. The vapor filter apparatus for a heat pump strip evaporator of claim 1, wherein: The front end of the filter box (2) is provided with an access door (3).

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