Combined multi-channel rotary pressure filter rotary joint

Abstract

The application provides a combined multi-channel rotary pressure filter rotary joint, which comprises a shell and a transmission distribution shaft connected with a device main shaft, the transmission distribution shaft is arranged in the interior of the shell and is movably connected with the shell, a plurality of fluid channels are arranged on the transmission distribution shaft, a plurality of fluid channel ports are respectively arranged on the shell and the device main shaft in correspondence, one end of the fluid channel on the transmission distribution shaft is communicated with the corresponding fluid channel port on the shell, and the other end is communicated with the corresponding fluid channel port on the device main shaft. The combined multi-channel rotary pressure filter rotary joint provided by the application sets fluid channel ports containing a lubricating oil interface and cooling water inlets and outlets on the transmission distribution shaft, can simultaneously meet the lubrication and cooling functions of the rotary joint, has good sealing effect and does not flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new materials and chemical equipment filtration technology, and particularly relates to a combined multi-channel rotary pressure filter rotary joint. BACKGROUND

[0002] The rotary pressure filter (RPF) is suitable for filtering slurry (or crystallization liquid) with solid components being crystals or powder and particle size being between 2-200 microns, and has more obvious advantages in filtering the following materials: difficult-to-filter materials, difficult-to-wash materials, toxic materials, volatile and strong irritant materials, explosive risk materials and materials that cannot be in contact with air / water. The rotary pressure filter is widely used in petrochemical, fine chemical, pharmaceutical, food, environmental protection and other industries.

[0003] The rotary joint is an important component of the device. When the rotary pressure filter is running, the packing sealing part needs to consume lubricating oil for lubrication, and at the same time, the part will generate heat by friction, and cooling water needs to be introduced into the jacket cooling part to take away heat in time. The rotary joint of the prior art is a segmented structure, and each segment is connected in series by long bolts. The structure is complex and prone to cross-flow of lubricating oil and cooling water. SUMMARY

[0004] Based on the above, the purpose of the present application is to provide a combined multi-channel rotary pressure filter rotary joint. The fluid channel port containing the lubricating oil interface and the cooling water inlet and outlet is arranged on the transmission distribution shaft, which can simultaneously satisfy the lubrication and cooling functions of the rotary joint, has good sealing effect and does not cross-flow.

[0005] To this end, the present application provides a combined multi-channel rotary pressure filter rotary joint, which comprises a housing and a transmission distribution shaft connected with a device main shaft. The transmission distribution shaft is arranged inside the housing and movably connected with the housing. The transmission distribution shaft is provided with a plurality of fluid channels. The housing and the device main shaft are respectively provided with a plurality of fluid channel ports corresponding to the fluid channels. One end of the fluid channel on the transmission distribution shaft is in communication with the corresponding fluid channel port on the housing, and the other end is in communication with the corresponding fluid channel port on the device main shaft.

[0006] In the combined multi-channel rotary pressure filter rotary joint, preferably, the fluid channel comprises at least one lubricating oil channel and at least one cooling water channel.

[0007] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the fluid passage port on the shell is arranged in the axial direction on the shell, and the fluid passage port on the shell comprises at least one lubricating oil inlet, at least one shell cooling water inlet and at least one shell cooling water outlet.

[0008] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the fluid passage port on the equipment main shaft is arranged on the end face connected with the transmission distribution shaft, and the fluid passage port on the equipment main shaft comprises at least one lubricating oil inlet, at least one main shaft cooling water inlet and at least one main shaft cooling water outlet.

[0009] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the shell is a hollow and one-end-open cylindrical type, and a gland is connected to the other end of the shell.

[0010] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the transmission distribution shaft is movably connected with the shell through a bearing, and further preferably, the bearing comprises a first bearing arranged at the end of the transmission distribution shaft and a second bearing arranged at the starting end of the transmission distribution shaft.

[0011] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the first bearing is axially fixed by an elastic shaft ring, a gland and a screw, and the screw is further preferably an internal hexagonal screw; the second bearing is axially fixed by a hole elastic ring; and further preferably, the first bearing and the second bearing are respectively deep groove ball bearings.

[0012] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the transmission distribution shaft is connected with the equipment main shaft through a connecting groove and a bolt, and rotates together with the equipment main shaft.

[0013] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, the connecting groove is at least two U-shaped grooves, and further preferably, the connecting groove is four U-shaped grooves.

[0014] The combined multi-channel rotary pressure filter rotary joint of the present application, wherein preferably, an axial combined sealing member is arranged between adjacent fluid passages, and the axial combined sealing member is composed of an O-shaped sealing ring and an H-shaped sealing ring to isolate adjacent fluid passages; and further preferably, the O-shaped sealing ring and the H-shaped sealing ring are respectively rubber rings.

[0015] The beneficial effects of the present application are as follows:

[0016] (1) The combined multi-channel rotary pressure filter rotary joint provided by the application sets the multi-channel fluid passage port on the transmission distribution shaft, can simultaneously meet the lubrication and cooling functions of the rotary joint, has good sealing effect, and does not have flow leakage.

[0017] (2) The multi-channel fluid passage port containing the lubricating oil interface and the cooling water inlet and outlet is set on the transmission distribution shaft, and the uniform lubrication and uniform heat removal effects of the rotary joint are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of an embodiment of the combined multi-channel rotary pressure filter rotary joint of the application.

[0019] Figure 2 It is a structural schematic view of the end surface of the transmission distribution shaft connected with the equipment main shaft.

[0020] Figure 3 It is a structural schematic view of the end surface of the equipment main shaft connected with the transmission distribution shaft.

[0021] 1. Transmission distribution shaft,

[0022] 2. Elastic retaining ring for shaft,

[0023] 3. First bearing,

[0024] 4. Pressing cover,

[0025] 5. Screw,

[0026] 6. Combined sealing piece for shaft,

[0027] 7. Shell,

[0028] 8. Second bearing,

[0029] 9. Elastic retaining ring for hole,

[0030] 10. First O-shaped sealing ring,

[0031] 11. Second O-shaped sealing ring,

[0032] 12. Equipment main shaft,

[0033] P1. First lubricating oil inlet,

[0034] P2. Second lubricating oil inlet,

[0035] P3. First lubricating oil passage,

[0036] P4. Second lubricating oil passage,

[0037] P5. Shell cooling water inlet,

[0038] P6, a housing cooling water outlet,

[0039] P7a, an inner tube of the first cooling water channel,

[0040] P7b, an outer tube of the first cooling water channel,

[0041] P8a, an inner tube of the second cooling water channel,

[0042] P8b, an outer tube of the second cooling water channel. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. The element symbols and / or letters of the present application may be repeatedly used in various embodiments. The purpose of this repetition is to simplify and clarify, and it does not itself define the relationship between the embodiments and / or configurations discussed.

[0044] Figure 1 A structural schematic diagram of an embodiment of the combined multi-channel rotary pressure filter rotary joint of the present application. Referring to Figure 1 As shown, the combined rotary pressure filter rotary joint provided by the present application comprises a housing 7 and a transmission distribution shaft 1 connected with a device main shaft 12, the transmission distribution shaft 1 is arranged inside the housing 7 and is movably connected with the housing 7, the transmission distribution shaft 1 is provided with a plurality of fluid channels, the housing 7 and the device main shaft 12 are respectively provided with a plurality of fluid channel openings corresponding thereto, one end of the fluid channel on the transmission distribution shaft 1 is in communication with the corresponding fluid channel opening on the housing 7, and the other end is in communication with the corresponding fluid channel opening on the device main shaft 12.

[0045] Specifically, Figure 2 A structural schematic diagram of an end surface of the transmission distribution shaft connected with the device main shaft. Figure 3 A structural schematic diagram of an end surface of the device main shaft connected with the transmission distribution shaft. Referring to Figure 1 、 Figure 2 and Figure 3As shown, the housing 7 is sequentially provided with the housing cooling water outlet P6, the housing cooling water inlet P5, the first lubricating oil inlet P1 and the second lubricating oil inlet P2 from left to right in the axial direction; the transmission distribution shaft 1 is provided with the first lubricating oil channel P3, the second lubricating oil channel P4, the first cooling water channel (sleeve) and the second cooling water channel (sleeve); the end surface of the equipment main shaft 12 connected with the transmission distribution shaft 1 is correspondingly provided with the main shaft cooling water outlet, the main shaft cooling water inlet, the lubricating oil inlet and the lubricating oil inlet. Specifically, the cooling water enters the equipment main shaft 12 from the housing cooling water inlet P5, the inner tube P7a of the first cooling water channel / the outer tube P7b of the first cooling water channel (P7a and P7b are a sleeve as a whole, and the inner tube can also be selected as the outer tube), the main shaft cooling water inlet, is discharged from the housing 7 by the main shaft cooling water outlet, the inner tube P8a of the second cooling water channel / the outer tube P8b of the second cooling water channel (P8a and P8b are a sleeve as a whole, and the inner tube can also be selected as the outer tube) and the housing cooling water outlet P6. The lubricating oil enters the equipment main shaft 12 from the first lubricating oil inlet P1 through the first lubricating oil channel P3; the lubricating oil enters the equipment main shaft 12 from the second lubricating oil inlet P2 through the second lubricating oil channel P4.

[0046] In some embodiments, preferably, the housing 7 is in a hollow and one-end-open cylindrical shape, and the other end thereof is connected with the gland 4.

[0047] In some embodiments, preferably, the transmission distribution shaft 1 is movably connected with the housing 7 through bearings, and further preferably, the bearings include a first bearing 3 and a second bearing 8, the first bearing 3 is arranged at the end of the transmission distribution shaft 1, and the second bearing 8 is arranged at the starting end of the transmission distribution shaft 1.

[0048] In some embodiments, preferably, the first bearing 3 is axially fixed by the shaft elastic retainer 2, the gland 4 and the screw 5, and the screw 5 is preferably an internal hexagonal screw; the second bearing 8 is axially fixed by the hole elastic retainer 9; and further preferably, the first bearing 3 and the second bearing 8 are respectively and independently deep groove ball bearings.

[0049] In some embodiments, preferably, the transmission distribution shaft 1 is connected with the equipment main shaft 12 through the connecting grooves and the bolts, and rotates together with the equipment main shaft 12.

[0050] In some embodiments, preferably, the connecting grooves are at least two U-shaped grooves, and further preferably, the connecting grooves are four U-shaped grooves.

[0051] In some embodiments, preferably, a shaft combined seal 6 is arranged between adjacent fluid channels, the shaft combined seal 6 is composed of a first O-ring 10, a second O-ring 11 and an H-shaped seal ring to isolate adjacent fluid channel ports; further preferably, the first O-ring 10, the second O-ring 11 and the H-shaped seal ring are rubber rings respectively. Specifically, the shaft combined seal 6 is two groups, which isolate the spaced fluid channels.

[0052] When the combined multi-channel rotary pressure filter rotary joint of the present application works, the quantitative lubricating oil enters from the lubricating oil inlets P1, P2, respectively flows to the equipment main shaft through the lubricating oil channels P3, P4, and then flows to the packing seals on both sides of the equipment, thereby realizing quantitative oiling of different parts and ensuring the lubrication effect; at the same time, the cooling water enters from the shell cooling water inlet P5, flows to the cooling jackets of the packing on both sides through the inner tube P8a of the second cooling water channel and the outer tube P8b of the second cooling water channel, and then flows out from the inner tube P7a of the first cooling water channel and the outer tube P7b of the first cooling water channel, and then flows out of the shell through the shell cooling water outlet P6, thereby taking away the heat.

[0053] As can be seen from the above, when the rotary pressure filter runs, the packing seal part needs to consume lubricating oil for lubrication, and at the same time, the part will generate heat due to friction, so cooling water needs to be supplied to the jacket cooling part to take away the heat. The combined multi-channel rotary pressure filter rotary joint provided by the present application can simultaneously realize the two important functions, and the multi-channel design of the transmission distribution shaft can realize multi-point lubrication and heat removal, thereby realizing the effects of uniform lubrication and uniform heat removal.

[0054] It should be noted that the above preferred embodiments are only used to illustrate the present application, but the present application is not limited to the described embodiments, and the changes and modifications made by the ordinary skilled in the art within the concept of the present application all belong to the protection scope of the present application.

Claims

1. A rotary union for a combined multi-channel rotary pressure filter, characterized in that, The device comprises a shell and a transmission distribution shaft connected with a main shaft of the device, the transmission distribution shaft is arranged inside the shell and movably connected with the shell, a plurality of fluid channels are arranged on the transmission distribution shaft, a plurality of fluid channel ports are respectively arranged on the shell and the main shaft of the device, one end of the fluid channel on the transmission distribution shaft is communicated with the corresponding fluid channel port on the shell, and the other end is communicated with the corresponding fluid channel port on the main shaft of the device; The fluid channel comprises at least one lubricating oil channel and at least one cooling water channel; The fluid channel ports on the shell are arranged along the axial direction of the shell, and the fluid channel ports on the shell comprise at least one lubricating oil inlet, at least one shell cooling water inlet and at least one shell cooling water outlet; The transmission distribution shaft is connected with the main shaft of the device through a connecting groove and a bolt and rotates together with the main shaft of the device; A combined shaft seal is arranged between adjacent fluid channels, and the combined shaft seal comprises an O-shaped sealing ring and an H-shaped sealing ring to isolate adjacent fluid channels.

2. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 1, wherein, The fluid channel ports on the main shaft of the device are arranged on the end face connected with the transmission distribution shaft, and the fluid channel ports on the main shaft of the device comprise at least one lubricating oil inlet, at least one main shaft cooling water inlet and at least one main shaft cooling water outlet.

3. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 1, wherein, The shell is a hollow cylindrical shell with one end open, and the other end is connected with a gland.

4. The rotary union for a combined multi-channel rotary pressure filter as described in claim 1, wherein, The transmission distribution shaft is movably connected with the shell through a bearing.

5. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 4, wherein, The bearing comprises a first bearing and a second bearing, the first bearing is arranged at the end of the transmission distribution shaft, and the second bearing is arranged at the starting end of the transmission distribution shaft.

6. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 5, wherein, The first bearing is axially fixed by an elastic shaft ring, a gland and a screw, and the second bearing is axially fixed by a hole elastic ring.

7. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 6, wherein, The screw is an internal hexagonal screw.

8. The rotary union for a combined multi-channel rotary pressure filter as defined in claim 6, wherein, The first bearing and the second bearing are respectively deep groove ball bearings.

9. The rotary union for a combined multi-channel rotary pressure filter as described in claim 1, wherein, The connecting groove is at least two U-shaped grooves.

10. The rotary union for a combined multi-channel rotary pressure filter machine of claim 9, wherein, The connecting groove is four U-shaped grooves.

11. The rotary union of claim 1, wherein, The O-shaped sealing ring and the H-shaped sealing ring are respectively independent rubber rings.

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