A refrigeration system filter drier

Abstract

The present application provides a refrigeration system filter drier, which relates to the technical field of refrigeration systems. A refrigeration system filter drier includes a housing, a filter element, a water inlet filter screen and a water outlet filter screen, and also includes a flow disturbance mechanism, wherein the flow disturbance mechanism includes an axis component, a front end flow disturbance component, a screen cylinder, a positioning member and a rear end flow disturbance component, wherein the front end flow disturbance component utilizes the flow of refrigerant to generate rotational kinetic energy, the rear end flow disturbance component converts the refrigerant from axial flow to radial flow, the front end flow disturbance component radiates the flow channel of the refrigerant fluid in a circumferential direction, so that the refrigerant enters the inside of the filter element from the side wall direction of the filter element, improves the use efficiency of the filter element, reduces the aggravation of the local blockage of the filter element, and the rear end flow disturbance component continues to change the flow channel of the refrigerant discharged from the filter element, so that the refrigerant flowing to the water outlet filter screen is as evenly distributed on the water outlet filter screen as possible, avoiding serious local blockage of the water outlet filter screen.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration systems, and in particular to a drying filter for a refrigeration system. Background Art

[0002] In the prior art, the drying filter in the refrigeration system is formed by closing the end of a copper tube, with inlet and outlet interfaces at both ends. A metal mesh is provided at the inlet and outlet ends to filter impurities, and a molecular sieve with excellent moisture absorption properties is installed as a desiccant to absorb moisture in the refrigerant.

[0003] However, during use, the flow path of the refrigerant inside the desiccant remains basically unchanged. It enters from the liquid inlet end, passes through the metal mesh at the liquid inlet end, and then a part of it directly enters the desiccant, and a part of it enters from the side of the desiccant, and finally seeps out from the axis of the desiccant, passes through the metal mesh at the liquid outlet end, and then flows out from the outlet. This filtering path will affect the filtering effect of the entire dryer due to the blockage of the metal mesh at the liquid inlet end. At the same time, the desiccant close to the liquid inlet end will increase the load here due to the dual axial and radial penetration of the refrigerant, accelerate the blockage of the desiccant at this end, affect the service life of the filter, and accelerate the replacement frequency of the filter. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a refrigeration system drying filter including a shell, wherein the two ends of the shell are respectively connected with an inlet end cover and an outlet end cover, and a filter assembly is coaxially arranged inside the shell, and the filter assembly includes a filter element arranged in the shell, an inlet end filter screen arranged on one side of the inlet end cover, and an outlet end filter screen arranged on one side of the outlet end cover, wherein a throat groove is coaxially arranged on the inner side of the inlet end cover, and also includes a spoiler mechanism, the spoiler mechanism includes an axis assembly, a front end spoiler assembly, a screen cylinder, a positioning member and a rear end spoiler assembly, the axis assembly is coaxially arranged on the shell and passes through the filter element, one end of the axis assembly is rotatably connected to the throat groove; the front end spoiler assembly is movably sleeved on the axis assembly, and the front end spoiler assembly is movably sleeved on the axis assembly. The spoiler assembly is located between the water inlet end cover and the filter element, and the front end spoiler assembly utilizes the flow of refrigerant to generate rotational kinetic energy; the screen drum is rotatably sleeved on a section of the axis assembly located in the filter element, the screen drum and the axis assembly are axially positioned, and the front end spoiler assembly and the screen drum are elastically connected; the positioning member is sleeved on the filter element, the positioning member is fixedly sleeved on the screen drum and rotatably connected to the shell, the two ends of the positioning member block the refrigerant, and the side wall of the positioning member is provided with a channel for radial flow of the refrigerant; the rear end spoiler assembly is fixedly sleeved on the axis assembly, the rear end spoiler assembly is fixedly plugged into the screen drum, and the rear end spoiler assembly converts the refrigerant from axial flow to radial flow.

[0005] Preferably, the axis assembly includes an axle rod and a support ring, the axle rod is inserted into the water outlet filter screen, the support ring is coaxially fixed to an end of the axle rod away from the water outlet filter screen, and the support ring is rotatably connected to the throat groove.

[0006] Preferably, the front end spoiler assembly is movably sleeved on the shaft rod, the side surface of the front end spoiler assembly is designed as an inwardly concave arc surface, and the front end spoiler assembly is cone-shaped as a whole, wherein the top of the cone is a closed end and the bottom of the cone is an open end.

[0007] Preferably, a plurality of front blades are evenly fixedly connected to the side surface of the front spoiler assembly in the circumferential direction, the front blades are arranged in an arc shape, and a front flow channel is formed between two adjacent front blades.

[0008] Preferably, a plurality of axial through holes are evenly arranged circumferentially on the closed end of the front end spoiler assembly, and the axial through holes penetrate the front end spoiler assembly.

[0009] Preferably, a plurality of water seepage holes are evenly arranged on the side wall of the sieve cylinder.

[0010] Preferably, the positioning member includes an arc-shaped baffle, a baffle ring and a positioning strip, the arc-shaped baffle is located on the side of the filter element facing the water inlet end cover, and the arc-shaped baffle is fixedly sleeved on the sieve cylinder; the baffle ring is located on the side of the filter element facing the water outlet end cover, and the baffle ring is fixedly sleeved on the sieve cylinder, and the baffle ring and the shell seal are rotatably matched; a plurality of the positioning strips are evenly arranged circumferentially, and the two ends of the plurality of the positioning strips are respectively fixedly connected to the arc-shaped baffle and the baffle ring, and the plurality of the positioning strips are attached to the side wall of the filter element.

[0011] Preferably, the rear end spoiler assembly comprises a rear end spoiler and a guide member, the rear end spoiler is arranged in a conical shape, the side wall of the cone is arranged in an inwardly concave arc shape, both ends of the cone are closed, the rear end spoiler is fixedly sleeved on the shaft rod, the guide member is rotatably inserted into the inner wall of the screen cylinder, the end surface of the guide member away from the rear end spoiler is arranged in an inwardly concave arc shape, the end surface of the guide member facing the rear end spoiler is arranged in an outwardly convex arc shape, and the axis center of the guide member is hollow.

[0012] Preferably, a plurality of rear end blades are evenly arranged circumferentially on the arc surface of the rear end spoiler, the rear end blades are arranged in an arc shape, the rear end blades are fixed to the guide member, and a rear end flow channel is formed between two adjacent rear end blades, and the rear end flow channel extends out of the filter element.

[0013] Preferably, the spoiler mechanism also includes a cleaning assembly, which includes a spiral scraper bar and a plurality of support rods, wherein the spiral scraper bar is arranged along the axial direction of the screen cylinder, the spiral scraper bar and the inner wall of the screen cylinder are gap-matched, the plurality of support rods are spirally arranged along the axial direction of the shaft rod, and the two ends of the plurality of support rods are respectively fixed to the shaft rod and the spiral scraper bar.

[0014] The beneficial effects of the present invention are:

[0015] The front-end spoiler assembly is used to rotate under the flow of the refrigerant, firstly, the flow path of the refrigerant fluid is radiated in the circumferential direction, and secondly, the refrigerant enters the interior of the filter element from the side wall of the filter element, thereby improving the use efficiency of the filter element and reducing the aggravation of local blockage of the filter element; the rotation of the front-end spoiler assembly is used to drive the filter element to rotate synchronously in the same direction, so that the refrigerant entering the filter element from the side is as uniform as possible, avoiding uneven distribution of the refrigerant entering the filter element from the side wall, and also avoiding uneven distribution of impurities in the refrigerant; the rear-end spoiler assembly is used to continue to change the flow path of the refrigerant discharged from the filter element, so that the refrigerant flowing to the water outlet filter is as evenly distributed on the water outlet filter as possible, avoiding serious local blockage of the water outlet filter; the rotation of the front-end spoiler assembly is used to drive the water outlet filter to rotate synchronously, thereby improving the interception effect of the water outlet filter on debris in the refrigerant to a certain extent.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural cross-sectional view of a refrigeration system filter drier in the prior art;

[0019] Figure 2 is a schematic diagram of the internal structure of a refrigeration system filter drier according to an embodiment of the present application;

[0020] Figure 3 is a structural cross-sectional view of a refrigeration system filter drier according to an embodiment of the present application;

[0021] Figure 4 is a cross-sectional view of a housing according to an embodiment of the present application;

[0022] Figure 5is a partial structural cross-sectional view of a spoiler mechanism according to an embodiment of the present application;

[0023] Figure 6 is a schematic structural diagram of a front-end spoiler assembly according to an embodiment of the present application;

[0024] Figure 7 is a schematic structural diagram of a positioning member according to an embodiment of the present application;

[0025] Figure 8 is a partial structural schematic diagram of a rear end spoiler assembly according to an embodiment of the present application;

[0026] Fig. 9 1 is a left view and a right view of a confluence mechanism according to an embodiment of the present application;

[0027] Fig.10 is a cross-sectional view of a confluence mechanism according to an embodiment of the present application;

[0028] Fig.11 According to the embodiment of the present application Fig.10 A magnified view of middle;

[0029] Fig.12 is a partial structural schematic diagram of a confluence mechanism according to an embodiment of the present application;

[0030] Fig.13 is a schematic diagram of the position and internal structure of a buffer component according to an embodiment of the present application;

[0031] Fig.14 It is a structural explosion diagram of a buffer component according to an embodiment of the present application.

[0032] Icons: 1. Shell; 12. Water inlet cover; 121. Throat groove; 13. Water outlet cover; 2. Filter assembly; 21. Filter element; 211. Front filter plate; 212. Rear filter plate; 22. Water inlet filter screen; 23. Water outlet filter screen; 3. Disturbance mechanism; 31. Axis assembly; 311. Axis rod; 312. Support ring; 32. Front spoiler assembly; 321. Front blade; 322. Front flow channel; 323. Axial through hole; 33. Screen cylinder; 331. Seepage hole; 34. Positioning piece; 341. Arc baffle; 342. Baffle ring; 343. Positioning strip; 35. Rear spoiler assembly; 351 , rear end spoiler; 352, guide member; 353, rear end blade; 354, rear end flow channel; 36, cleaning assembly; 361, spiral scraper; 362, support rod; 4, confluence mechanism; 41, confluence cover; 411, liquid inlet channel; 412, liquid outlet hole; 413, first guide ring; 414, second guide ring; 415, flow stabilizing plate; 416, interception ring; 417, positioning ring; 42, baffle; 5, buffer assembly; 51, buffer member; 511, shaft sleeve; 512, front fixed end; 513, rear fixed end; 514, power blade; 52, buffer cylinder; 521, through groove; 53, elastic member. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0034] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] like Figure 1As shown, a refrigeration system drying filter in the prior art includes a housing 1, wherein the two ends of the housing 1 are respectively connected with a water inlet end cover 12 and a water outlet end cover 13, a filter assembly 2 is coaxially arranged inside the housing 1, and the filter assembly 2 includes a filter element 21 arranged in the housing 1, a water inlet end filter screen 22 arranged on one side of the water inlet end cover 12, and a water outlet end filter screen 23 arranged on one side of the water outlet end cover 13, wherein the two ends of the filter element 21 are respectively coaxially arranged with a front filter sheet 211 and a rear filter sheet 212, and the axis of the front filter sheet 211 is The opening is set, when in use, the refrigerant fluid enters from the water inlet end cover 12, and after passing through the water inlet end filter screen 22, a part of the refrigerant fluid passes through the axis of the front end filter plate 211 and directly enters the filter element 21, and a part of the refrigerant liquid enters the gap between the shell 1 and the filter element 21 under the interception of the front end filter plate 211, and enters the filter element 21 from the side wall of the filter element 21, and finally the refrigerant liquid flows out from the filter element 21 toward one side of the water outlet end cover 13, and after passing through the water outlet end filter screen 23, enters the water outlet end cover 13 to complete the filtration.

[0036] Embodiment 1, as Figure 2-Figure 8 As shown, in a specific embodiment of the present application, a throat groove 121 is coaxially arranged on the inner side of the water inlet end cover 12 .

[0037] Specifically, a refrigeration system filter drier according to an embodiment of the present application further includes a spoiler mechanism 3 , which includes an axis component 31 , a front spoiler component 32 , a sieve cylinder 33 , a positioning member 34 and a rear spoiler component 35 .

[0038] The shaft component 31 is coaxially disposed on the housing 1 and penetrates the filter element 21 , and one end of the shaft component 31 is rotatably connected to the throat groove 121 .

[0039] Specifically, Figure 5 As shown, the axis assembly 31 includes a shaft 311 and a support ring 312 . The shaft 311 is inserted into the water outlet filter 23 . The support ring 312 is coaxially fixed to one end of the shaft 311 away from the water outlet filter 23 . The support ring 312 is rotatably connected to the throat groove 121 .

[0040] It should be noted that the support ring 312 can and can only rotate in the throat groove 121 .

[0041] In a specific embodiment of the present application, the front end spoiler assembly 32 is movably mounted on the shaft assembly 31, and the front end spoiler assembly 32 is located between the water inlet end cover 12 and the filter element 21. The front end spoiler assembly 32 utilizes the flow of refrigerant to generate rotational kinetic energy.

[0042] like Figure 3 and Figure 6As shown, the front spoiler assembly 32 is movably sleeved on the shaft 311, and the side of the front spoiler assembly 32 is designed as an inwardly concave arc surface. The front spoiler assembly 32 is overall conical, wherein the top of the cone is a closed end and the bottom of the cone is an open end.

[0043] A plurality of front blades 321 are evenly fixed to the side surface of the front spoiler assembly 32 in the circumferential direction. The front blades 321 are arranged in an arc shape, and a front flow channel 322 is formed between two adjacent front blades 321 .

[0044] It can be seen from this that when the refrigerant liquid flows from the water inlet end cover 12 to the front end spoiler assembly 32, it will first be guided by multiple front end flow channels 322, so that the original axial flow forms a circumferentially diffused radial flow, forcing the refrigerant liquid flow to be guided into the gap between the filter element 21 and the shell 1, so that the refrigerant liquid flow can and can only enter the filter element 21 from the side wall of the filter element 21, and secondly, it will generate rotational potential energy for the front end spoiler assembly 32, forcing the front end spoiler assembly 32 to rotate on the shaft 311.

[0045] like Figure 6 As shown, a plurality of axial through holes 323 are evenly arranged circumferentially on the closed end of the front end spoiler component 32, and the axial through holes 323 penetrate the front end spoiler component 32. It can be seen that a part of the refrigerant liquid flow will directly pass through the front end spoiler component 32 and enter between the front end spoiler component 32 and the filter element 21, forming an impact between the front end spoiler component 32 and the filter element 21 to generate liquid flow, so as to avoid the formation of a dead water area between the front end spoiler component 32 and the filter element 21.

[0046] In a specific embodiment of the present application, the screen drum 33 is rotatably sleeved on a section of the shaft assembly 31 located in the filter element 21, the screen drum 33 and the shaft assembly 31 are axially positioned, and the front end spoiler assembly 32 and the screen drum 33 are elastically connected. It should be noted that the front end spoiler assembly 32 and the screen drum 33 can and only can have axial displacement, and the two rotate synchronously, such as Figure 2 , Figure 3 and Figure 5 As shown, a plurality of seepage holes 331 are evenly arranged on the side wall of the sieve cylinder 33 , and the sieve cylinder 33 plays a certain confluence role on the refrigerant entering the filter element 21 , so that the refrigerant can penetrate into the interior of the sieve cylinder 33 and finally flow out from the sieve cylinder 33 toward one end of the water outlet cover 13 .

[0047] It should be noted that, in the specific embodiment of the present application, one end of the sieve cylinder 33 facing the water inlet end cover 12 is closed to prevent the refrigerant fluid from directly entering the interior of the sieve cylinder 33 from this end, thereby losing the filtering effect of the filter element 21.

[0048] In a specific embodiment of the present application, the positioning member 34 is sleeved on the filter element 21, the positioning member 34 is fixedly sleeved on the screen cylinder 33 and rotatably connected to the shell 1, the two ends of the positioning member 34 block the refrigerant, and a channel for radial flow of the refrigerant is provided on the side wall of the positioning member 34.

[0049] Specifically, Figure 2 , Figure 3 and Figure 7 As shown, the positioning member 34 includes an arc-shaped baffle 341, a baffle ring 342 and a positioning strip 343. The arc-shaped baffle 341 is located on the side of the filter element 21 facing the water inlet end cover 12, and the arc-shaped baffle 341 is fixedly sleeved on the sieve cylinder 33; the baffle ring 342 is located on the side of the filter element 21 facing the water outlet end cover 13, and the baffle ring 342 is fixedly sleeved on the sieve cylinder 33, and the baffle ring 342 and the shell 1 are sealed and rotated together; a plurality of positioning strips 343 are evenly arranged circumferentially, and the two ends of the plurality of positioning strips 343 are respectively fixedly connected to the arc-shaped baffle 341 and the baffle ring 342, and the plurality of positioning strips 343 are attached to the side wall of the filter element 21.

[0050] It should be noted that in the specific embodiment of the present application, the arc-shaped baffle 341 and the baffle ring 342 are made of impermeable materials to better guide and intercept the liquid flow. It can be seen from the above content that the liquid flow will be intercepted at the arc-shaped baffle 341, so the liquid flow is at the end of the shell 1 close to the water inlet end cover 12, and cannot enter from the end of the filter element 21. Secondly, the liquid flow inside the filter element 21 can and can only enter the screen cylinder 33 from the axis of the filter element 21, and cannot pass through the baffle ring 342 to flow directly to the water outlet filter 23, and the spacing between the positioning strips 343 forms a channel for the refrigerant liquid flow to enter the filter element 21 from the side wall direction.

[0051] In a specific embodiment of the present application, the rear end spoiler assembly 35 is fixedly sleeved on the shaft assembly 31, and the rear end spoiler assembly 35 is fixedly plugged into the screen cylinder 33, and the rear end spoiler assembly 35 transforms the refrigerant from axial flow to radial flow.

[0052] like Figure 5 and Figure 8 As shown, the rear end spoiler assembly 35 includes a rear end spoiler 351 and a guide member 352. The rear end spoiler 351 is arranged in a conical shape, and the side wall of the cone is arranged in an inwardly concave arc shape. Both ends of the cone are closed. The rear end spoiler 351 is fixedly sleeved on the shaft rod 311, and the guide member 352 is rotatably inserted into the inner wall of the screen drum 33. It should be noted that the guide member 352 and the screen drum 33 are sealed and rotatably matched. The end face of the guide member 352 away from the rear end spoiler 351 is arranged in an inwardly concave arc shape, and the end face of the guide member 352 facing the rear end spoiler 351 is arranged in an outwardly convex arc shape. The axis of the guide member 352 is hollow.

[0053] It can be seen from this that when the refrigerant liquid flows axially in the screen cylinder 33 to the guide member 352 , the end surface of the guide member 352 will force the refrigerant liquid to converge at the axis and accelerate the flow to the rear spoiler 351 .

[0054] Furthermore, a plurality of rear end blades 353 are evenly arranged circumferentially on the arc surface of the rear end spoiler 351, the rear end blades 353 are arranged in an arc shape, the rear end blades 353 are fixedly connected to the guide member 352, and a rear end flow channel 354 is formed between two adjacent rear end blades 353, and the rear end flow channel 354 extends out of the filter element 21. It can be seen that after passing through the rear end flow channel 354, the liquid flow will radiate circumferentially toward the outside of the filter element 21, and finally pass through the water outlet filter 23 into the water outlet cover 13.

[0055] It can be seen that when the liquid flow is accelerated to flow toward the rear end flow channel 354 , it will generate rotational potential energy on the rear end spoiler 351 , and the rotation of the rear end spoiler 351 drives the shaft 311 to rotate synchronously in the same direction.

[0056] In another specific embodiment of the present application, Figure 3 and Figure 5 As shown, the spoiler mechanism 3 also includes a cleaning component 36, which includes a spiral scraper bar 361 and a plurality of support rods 362. The spiral scraper bar 361 is arranged along the axial direction of the screen cylinder 33, and the spiral scraper bar 361 and the inner wall of the screen cylinder 33 are gap-matched. The plurality of support rods 362 are spirally arranged along the axial direction of the shaft rod 311, and the two ends of the plurality of support rods 362 are respectively fixed to the shaft rod 311 and the spiral scraper bar 361.

[0057] It can be seen from this that since the rotational potential energy generated by the refrigerant liquid flow at the front end spoiler component 32 and the rotational potential energy generated at the rear end spoiler component 35 are different (the sizes of the front end spoiler component 32 and the rear end spoiler component 35 are obviously different), there will be a difference between the rotation speed of the front end spoiler component 32 and the rotation speed of the rear end spoiler component 35. By utilizing the speed difference, a rotational difference will be formed between the synchronously rotating shaft rod 311, the spiral scraper bar 361, and the rear end spoiler component 35 and the synchronously rotating front end spoiler component 32, the screen drum 33 and the positioning member 34. It can be understood that in this case, a rotational scraping action will occur between the spiral scraper bar 361 and the inner wall of the screen drum 33. In this way, impurities on the screen drum 33 can be removed by the spiral scraper bar 361 to a certain extent, so that the blockage phenomenon on the screen drum 33 will be reduced to a certain extent.

[0058] The following describes the use process of a refrigeration system filter dryer according to an embodiment of the present application with reference to the accompanying drawings:

[0059] During specific use, the refrigerant fluid enters from the water inlet end cover 12 and is blocked by the front end spoiler assembly 32. Under the guidance of the front end flow channel 322, the front end spoiler assembly 32 is generated with rotational potential energy, driving the front end spoiler assembly 32 to rotate. At the same time, the original axial displacement of the refrigerant fluid is also formed into circumferential radiation diffusion due to the front end spoiler assembly 32, that is, the refrigerant fluid is guided to between the shell 1 and the filter element 21, and the refrigerant fluid is rotated inside the shell 1 at the same time. In this process, due to the existence of the axial through hole 323, a part of the refrigerant fluid will pass through the front end spoiler assembly 32 and enter between the front end spoiler assembly 32 and the end face of the filter element 21. Due to the blocking effect of the arc-shaped baffle 341, the refrigerant fluid cannot The refrigerant fluid directly enters the end face of the filter element 21 from the arc-shaped baffle 341. At this time, the refrigerant fluid forms a flow effect between the front spoiler component 32 and the filter element 21, and finally converges between the shell 1 and the filter element 21. Then, the fluid is blocked by the baffle ring 342, forcing the fluid to enter the filter element 21 only from the side wall of the filter element 21, and finally penetrate into the screen cylinder 33, and flow from the screen cylinder 33 to the rear end spoiler component 35. Under the convergence effect of the guide member 352, the liquid flow is accelerated to enter the rear end flow channel 354, generating rotational potential energy for the rear end spoiler component 35, and then the rotation of the rear end spoiler component 35 drives the shaft rod 311 and the spiral scraper 361 to rotate synchronously. At this time, the rear end is used to The speed difference between the spoiler component 35 and the front spoiler component 32 causes a rotational scraping phenomenon to occur between the spiral scraper 361 and the screen drum 33. Then, the refrigerant liquid flow extends from the rear end flow channel 354 to one end of the filter element 21 and radiates circumferentially, and finally enters the water outlet end cover 13 after passing through the water outlet end filter screen 23. This design first changes the flow channel of the refrigerant liquid flow so that the refrigerant liquid flow can and can only enter from the side wall of the filter element 21. Secondly, the rotation of the refrigerant liquid flow and the rotation of the filter element 21 will allow the refrigerant to evenly enter the interior of the filter element 21, thereby improving the filtering effect of the filter element 21. At the same time, the rotation of the refrigerant liquid flow and the rotation of the filter element 21 and the positioning member 34 will cause impurities in the refrigerant liquid flow to be removed in the cold air. The refrigerant forms a uniform distribution in the media, further strengthening the filtering effect of the filter element 21, thus avoiding the occurrence of severe local blockage in the filter element 21 as much as possible and improving the service life of the filter element 21. The rotational scraping phenomenon between the spiral scraper bar 361 and the screen cylinder 33 can scrape the screen cylinder 33 to a certain extent, thereby extending the service life of the screen cylinder 33. The refrigerant liquid flows from one end of the filter element 21 extending from the rear end flow channel 354 and radiates circumferentially before passing through the water outlet filter screen 23, which can improve the filtering effect of the water outlet filter screen 23 and avoid the occurrence of severe local blockage on the water outlet filter screen 23. In this way, the service life and filtering effect of the entire drying filter will be improved as a whole.

[0060] In the related art, in a refrigeration system drying filter, although some impurities in the refrigerant liquid flow flowing out from the rear end flow channel 354 are filtered out by the filter element 21, some impurities will still enter the water outlet filter 23 with the refrigerant liquid flow, causing the water outlet filter 23 to be blocked. Once the water outlet filter 23 is blocked, even if the filter element 21 still has a filtering effect, the drying filter loses its use value.

[0061] Embodiment 2, according to some embodiments of the present application, such as Figure 2 , Figure 3 , Figure 9-12 As shown, a confluence mechanism 4 is coaxially arranged inside the water outlet end cover 13, and the confluence mechanism 4 includes a confluence cover 41 and a baffle plate 42. The confluence cover 41 is coaxially fixed to the water outlet end cover 13, and the confluence cover 41 is arranged in an annular shape, and a cavity is arranged inside the annular shape. An annular channel for the refrigerant to enter the cavity is arranged at one end of the confluence cover 41 facing the filter element 21, and a plurality of through holes for the refrigerant to flow out of the cavity are evenly arranged on the radial inner wall of the confluence cover 41 in a circumferential direction; the baffle plate 42 is sleeved on the shaft 311, and the baffle plate 42 and the confluence cover 41 are sealed and rotatably matched, and the baffle plate 42 is located between the filter element 21 and the water outlet filter screen 23, and the water outlet filter screen 23 and the baffle plate 42 are respectively located on both sides of the plurality of through holes on the radial inner wall of the confluence cover 41 for the refrigerant to flow out.

[0062] Specifically, Fig. 9 , Fig.11 and Fig.12 As shown, the annular channel on the collecting cover 41 is a liquid inlet channel 411 , and the through hole on the radial inner wall of the collecting cover 41 is a liquid outlet hole 412 .

[0063] Among them, Fig.11 and Fig.12 As shown, a first guide ring 413 and a second guide ring 414 are fixedly connected in the cavity inside the collector 41, the first guide ring 413 is fixedly connected to one side of the liquid inlet channel 411, and the second guide ring 414 is fixedly connected to one side of the liquid outlet hole 412, the first guide ring 413 and the second guide ring 414 are vertically arranged, the first guide ring 413 and the second guide ring 414 are not in contact with each other, and the other ends of the first guide ring 413 and the second guide ring 414 are respectively not in contact with the inner wall of the collector 41, and the first guide ring 413 and the second guide ring 414 cooperate with the liquid inlet channel 411 and the liquid outlet hole 412 to divide the cavity inside the collector 41 into a circuitous liquid flow channel.

[0064] It can be seen from this that the refrigerant fluid entering the cavity of the confluence cover 41 will flow out from the liquid outlet 412 after passing through the detour channel, and the uniformity of the refrigerant fluid flowing to the water outlet filter 23 is further improved.

[0065] A plurality of flow stabilizing plates 415 are arranged at the first turning point of the detour channel in the collector 41 . The plurality of flow stabilizing plates 415 are evenly arranged circumferentially in the collector 41 , and the plurality of flow stabilizing plates 415 are arranged along the radial direction of the collector 41 .

[0066] It can be seen from this that the refrigerant fluid that originally rotates inside the water outlet end cover 13 and enters the confluence cover 41 will be blocked by the flow stabilizer 415, reducing the potential energy of rotation and tending to flow as calmly as possible from the rotating state, so that impurities in the refrigerant fluid can form a certain amount of precipitation.

[0067] Furthermore, an interception ring 416 is fixedly connected to the side of the second guide ring 414 away from the liquid outlet 412. The interception ring 416 is arranged to gradually converge from the side close to the second guide ring 414 to the other side. It can be seen that the refrigerant fluid tending to flow calmly will be further intercepted by the interception ring 416, so that the impurities carried inside the refrigerant fluid will be precipitated as much as possible.

[0068] It should be noted that a positioning ring 417 is fixedly connected to the collector 41, and the positioning ring 417 is located on the inner side of the ring formed by the collector 41. The positioning ring 417 and the baffle plate 42 are sealed and rotatably matched. The positioning ring 417 is located between the liquid inlet channel 411 and the liquid outlet hole 412 in the radial direction, and the water outlet filter 23 is sealed and rotatably connected to the collector 41.

[0069] Therefore, during specific use, when the refrigerant liquid flow out of the rear end flow channel 354 rotates and enters the cavity in the confluence cover 41, it will first be changed in flow direction by the detour channel in the cavity, and then blocked by the flow stabilizer 415 and the interception ring 416 in the detour channel, which will reduce the rotational potential energy of the refrigerant fluid and make the impurities carried by the refrigerant fluid that have not been filtered out form precipitation as much as possible and precipitate in the detour channel (as for the entire drying filter being placed vertically or horizontally, it will form a certain degree of precipitation in the detour channel, only the precipitation position and precipitation effect are different. Of course, vertical placement is preferred), and then the refrigerant fluid flows out from a plurality of liquid outlet holes 412 evenly arranged in the circumferential direction, forming a more uniform state to flow through the water outlet filter 23. This design reduces the load on the water outlet filter 23 and increases the service life of the water outlet filter 23, thereby further increasing the service life of the entire drying filter.

[0070] In the related art, in a refrigeration system drying filter, since there is an axial through hole 323 at the front end spoiler component 32, and the refrigerant liquid flows through it without any filtration, the axial through hole 323 may be blocked due to the precipitation of impurities, affecting the front end spoiler component 32's guidance and rotation effect on the refrigerant liquid flow, and reducing the filtering effect of the entire drying filter.

[0071] Embodiment 3, according to some embodiments of the present application, such as Figure 3 , Fig.13 and Fig.14 As shown, a buffer assembly 5 is coaxially arranged between the front end spoiler assembly 32 and the screen drum 33, and the buffer assembly 5 includes a buffer member 51, a buffer cylinder 52 and an elastic member 53. The buffer member 51 is fixedly connected to one end of the front end spoiler assembly 32 facing the screen drum 33; the buffer cylinder 52 is fixedly connected to the screen drum 33, and the buffer cylinder 52 is slidably sleeved on the buffer member 51; the elastic member 53 is arranged in the buffer cylinder 52, one end of the elastic member 53 abuts against the buffer member 51, and the other end of the elastic member 53 abuts against the buffer cylinder 52.

[0072] It should be noted that the buffer tube 52 is rotatably sleeved on the shaft 311 .

[0073] Among them, the buffer member 51 includes a sleeve 511, a front fixed end 512, a rear fixed end 513 and power blades 514, the sleeve 511 is movably sleeved on the shaft rod 311; the front fixed end 512 is fixedly connected to the front end spoiler assembly 32 and fixedly sleeved on the sleeve 511; the rear fixed end 513 is fixedly sleeved on the sleeve 511 and fixedly connected to the screen drum 33; and a plurality of power blades 514 are evenly fixedly connected to the sleeve 511 in the circumferential direction.

[0074] Specifically, a plurality of through grooves 521 are evenly arranged in the circumferential direction at one end of the buffer cylinder 52 facing the buffer member 51 , and the plurality of through grooves 521 and the plurality of power blades 514 are sealingly and slidingly matched.

[0075] Therefore, during specific use, when the front end spoiler assembly 32 is impacted by the refrigerant fluid, the front end spoiler assembly 32 will be forced to drive the fixed buffer member 51 to squeeze the elastic member 53 to a certain extent, that is, the buffer member 51 will undergo a certain degree of axial displacement toward the inside of the buffer tube 52, and the change in potential energy provided by the refrigerant fluid passing through the front end spoiler assembly 32 (the change in flow rate or flow velocity will cause this effect, and a variable frequency pump can be used in the refrigeration system to achieve this effect) will cause the elastic member 53 to be squeezed at a different force, so that the front end spoiler assembly 32 will undergo axial reciprocating displacement relative to the filter element 21. During this displacement process, the space passed by the refrigerant fluid will change, and thus its flow rate will further change. This will change the impact force on the front end flow channel 322, and reduce the impurities that may be precipitated in the front end flow channel 322. At the same time, due to the rotation of the front end spoiler assembly 32, the entire buffer assembly 5 will be driven to rotate synchronously, so the power blades 514 thereon will follow the rotation. This will cause the dead water area that may be formed at the buffer member 51 to be disturbed, and with the help of the refrigerant fluid that directly passes through the front end spoiler assembly 32, the dead water area that may exist between the front end spoiler assembly 32 and the filter element 21 will be further reduced.

[0076] It should be noted that the specific models and specifications of the shell 1, the water inlet end cover 12, the water outlet end cover 13, the filter element 21, the front end filter plate 211, the rear end filter plate 212, the water inlet end filter screen 22, the water outlet end filter screen 23 and the elastic member 53 need to be selected and determined according to the actual specifications of the device, etc. The specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail.

[0077] The above description is only the preferred implementation mode of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigeration system filter drier, comprising a housing (1), wherein two ends of the housing (1) are respectively connected to a water inlet end cover (12) and a water outlet end cover (13), wherein a filter assembly (2) is coaxially arranged inside the housing (1), wherein the filter assembly (2) comprises a filter element (21) arranged inside the housing (1), a water inlet end filter screen (22) arranged on one side of the water inlet end cover (12), and a water outlet end filter screen (23) arranged on one side of the water outlet end cover (13), wherein: A throat groove (121) is coaxially arranged on the inner side of the water inlet end cover (12); A spoiler mechanism (3), wherein the spoiler mechanism (3) comprises: an axis component (31), the axis component (31) being coaxially arranged on the housing (1) and penetrating the filter element (21), one end of the axis component (31) being rotatably connected to the throat groove (121); A front end spoiler assembly (32), the front end spoiler assembly (32) being movably sleeved on the shaft assembly (31), the front end spoiler assembly (32) being located between the water inlet end cover (12) and the filter element (21), and the front end spoiler assembly (32) utilizing the flow of the refrigerant to generate rotational kinetic energy; a sieve drum (33), the sieve drum (33) being rotatably sleeved on a section of the shaft assembly (31) located inside the filter element (21), the sieve drum (33) and the shaft assembly (31) being axially positioned, and the front end spoiler assembly (32) and the sieve drum (33) being elastically connected; a positioning member (34), the positioning member (34) being sleeved on the filter element (21), the positioning member (34) being fixedly sleeved on the screen cylinder (33) and rotatably connected to the housing (1), the two ends of the positioning member (34) blocking the refrigerant, and a channel for radial flow of the refrigerant being provided on the side wall of the positioning member (34); A rear end spoiler assembly (35), the rear end spoiler assembly (35) being fixedly sleeved on the shaft assembly (31), the rear end spoiler assembly (35) being rotatably plugged into the screen cylinder (33), and the rear end spoiler assembly (35) causing the refrigerant to change from axial flow to radial flow.

2. A refrigeration system filter drier as claimed in claim 1, characterized in that: The axis assembly (31) comprises an axis rod (311) and a support ring (312); the axis rod (311) is inserted into the water outlet filter screen (23); the support ring (312) is coaxially fixed to an end of the axis rod (311) away from the water outlet filter screen (23); and the support ring (312) is rotatably connected to the throat groove (121).

3. A refrigeration system filter drier as claimed in claim 2, characterized in that: The front end spoiler component (32) is movably sleeved on the shaft (311), the side surface of the front end spoiler component (32) is designed as an inwardly concave arc surface, and the front end spoiler component (32) is overall in a cone shape, wherein the top of the cone is a closed end and the bottom of the cone is an open end.

4. A refrigeration system filter drier as claimed in claim 1, characterized in that: A plurality of front blades (321) are evenly fixedly connected to the side surface of the front spoiler assembly (32) in the circumferential direction; the front blades (321) are arranged in an arc shape, and a front flow channel (322) is formed between two adjacent front blades (321).

5. A refrigeration system filter drier as claimed in claim 1, characterized in that: A plurality of axial through holes (323) are evenly arranged circumferentially on the closed end of the front end spoiler component (32), and the axial through holes (323) penetrate the front end spoiler component (32).

6. A refrigeration system filter drier as claimed in claim 1, characterized in that: A plurality of water seepage holes (331) are evenly arranged on the side wall of the screen cylinder (33).

7. A refrigeration system filter drier as claimed in claim 1, characterized in that: The positioning member (34) comprises: An arc-shaped baffle (341), the arc-shaped baffle (341) being located on a side of the filter element (21) facing the water inlet end cover (12), and the arc-shaped baffle (341) being fixedly sleeved on the screen cylinder (33); a retaining ring (342), the retaining ring (342) being located on a side of the filter element (21) facing the water outlet end cover (13), the retaining ring (342) being fixedly sleeved on the sieve cylinder (33), the retaining ring (342) and the housing (1) being in sealing rotational cooperation; A plurality of positioning strips (343) are uniformly arranged in the circumferential direction, two ends of the plurality of positioning strips (343) are respectively fixed to the arc-shaped baffle (341) and the baffle ring (342), and the plurality of positioning strips (343) are attached to the side wall of the filter element (21).

8. A refrigeration system filter drier as claimed in claim 2, characterized in that: The rear end spoiler assembly (35) comprises a rear end spoiler (351) and a flow guide (352); the rear end spoiler (351) is arranged in a conical shape, the side wall of the cone is arranged in an inwardly concave arc shape, and both ends of the cone are closed; the rear end spoiler (351) is fixedly sleeved on the shaft (311); the flow guide (352) is rotatably plugged into the inner wall of the screen drum (33); the end surface of the flow guide (352) away from the rear end spoiler (351) is arranged in an inwardly concave arc shape, and the end surface of the flow guide (352) facing the rear end spoiler (351) is arranged in an outwardly convex arc shape; the axis of the flow guide (352) is arranged in a hollow shape.

9. A refrigeration system filter drier as claimed in claim 8, characterized in that: A plurality of rear end blades (353) are evenly arranged circumferentially on the arc-shaped surface of the rear end spoiler (351); the rear end blades (353) are arranged in an arc shape; the rear end blades (353) are fixed to the flow guide (352); a rear end flow channel (354) is formed between two adjacent rear end blades (353); and the rear end flow channel (354) extends out of the filter element (21).

10. A refrigeration system filter drier as claimed in claim 2, characterized in that: The spoiler mechanism (3) further comprises a cleaning assembly (36), the cleaning assembly (36) comprising a spiral scraper (361) and a plurality of support rods (362), the spiral scraper (361) being arranged along the axial direction of the screen cylinder (33), the spiral scraper (361) and the inner wall of the screen cylinder (33) being clearance-matched, the plurality of support rods (362) being spirally arranged along the axial direction of the shaft rod (311), and the two ends of the plurality of support rods (362) being respectively fixed to the shaft rod (311) and the spiral scraper (361).

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