Air magnetic suspension centrifugal blower with cooling circulation structure

Abstract

The utility model discloses an air magnetic suspension centrifugal blower with a cooling circulation structure, which is characterized in that a first axial hole and a second axial hole which are distributed in a ring array, and a pipe cavity structure consisting of a first communication groove and a second communication groove are matched with a reciprocating pipeline formed by a U-shaped structure pipe and a pipe connecting piece, so that the cooling circulation structure is formed; cooling liquid can fully flow through heating parts such as the main shaft part and the magnetic suspension bearing assembly, and the cooling efficiency is greatly improved. The air blower is compact in structure, all the components are arranged in a close fit mode, efficient cooling circulation is achieved under the condition of not occupying too much space, and the overall structure of the air blower is more compact and reasonable. Due to the special conical surface structure of the water leakage prevention sleeve head and the socket end of the pipe connecting piece and the inverted buckling design of the step groove, leakage of cooling liquid is effectively prevented, and stable operation of a cooling circulation system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to air suspension centrifugal blower, concretely relates to an air magnetic suspension centrifugal blower with cooling circulation structure. BACKGROUND

[0002] When the air magnetic suspension centrifugal blower is running, the core components such as the main shaft part, the magnetic suspension bearing assembly and the impeller part in the air magnetic suspension centrifugal blower will generate a large amount of heat due to high-speed operation of up to tens of thousands of revolutions per minute. If the heat cannot be effectively dissipated in time, the temperature of the components will rise sharply.

[0003] When the temperature exceeds the tolerance range of the components, thermal expansion of the metal material will be triggered, which will cause the matching precision between the components to decrease, and further affect the gas compression efficiency of the blower, so that the performance of the blower is greatly reduced.

[0004] Long-term high-temperature state will also accelerate the wear and aging of the components, greatly shorten the service life of the blower, and even directly cause a fault due to overheating damage of the key components, resulting in equipment downtime and serious impact on production and operation. The traditional cooling methods such as air cooling and water cooling have disadvantages such as limited heat dissipation area and insufficient cooling liquid circulation power, which result in low cooling efficiency and difficulty in removing a large amount of heat in a short time.

[0005] At the same time, the traditional cooling structure often needs to be equipped with complex components such as pipelines, water pumps and heat dissipation fins, which not only increases the overall volume and weight of the equipment, but also increases the difficulty and cost of installation and maintenance, and is difficult to meet the strict requirements of the air magnetic suspension centrifugal blower for efficient and stable operation. SUMMARY

[0006] The utility model aims at providing an air magnetic suspension centrifugal blower with a cooling circulation structure to solve the problems of low cooling efficiency and complex structure of the blower in the prior art, realize efficient heat dissipation and ensure stable operation of the blower.

[0007] To solve the above technical problems, the utility model realizes the following scheme: the utility model relates to an air magnetic suspension centrifugal blower with a cooling circulation structure, which comprises a main shaft part, two groups of magnetic suspension bearing assemblies installed at both ends of the main shaft part, two end covers and two groups of impeller parts, one end cover is fixed to the outer end of any one group of magnetic suspension bearing assemblies, and the two groups of impeller parts are fixed to the outer ends of the two end covers one by one, and the air magnetic suspension centrifugal blower further comprises a cooling circulation structure, which comprises:

[0008] A plurality of first axial holes arranged in a ring array on the outer shell of the main shaft part;

[0009] A plurality of second axial holes arranged in a ring array on the magnetic suspension bearing assembly shell, the plurality of first axial holes and the plurality of second axial holes are coaxially arranged one by one to form coaxial holes;

[0010] A plurality of first communication grooves arranged in a ring array on the outer end of the magnetic suspension bearing assembly shell and not intersecting, the first communication grooves communicate the ends of two adjacent second axial holes;

[0011] A plurality of second communication grooves arranged in a ring array on the cover surface of the end cover, the plurality of second communication grooves and the plurality of first communication grooves are arranged opposite to each other one by one, and the first communication grooves and the second communication grooves form a cavity structure;

[0012] A plurality of U-shaped structure pipes, the number of which is equal to that of the first communication grooves, both ends of each first communication groove are inserted into one of the U-shaped structure pipes, and the inserted end of each U-shaped structure pipe is exposed in the first communication groove in the other end surface, and the U-shaped structure pipe has a first U-shaped structure cavity penetrating both ends;

[0013] A plurality of pipe connectors, which connect the ports of the plurality of U-shaped structure pipes end to end, so that the plurality of U-shaped structure pipes and the plurality of pipe connectors form a reciprocating pipe line having a water inlet and a water outlet, the pipe connector and the port of the U-shaped structure pipe are connected in a water leakage-proof structure, and the pipe connector has a second U-shaped structure cavity penetrating both ends.

[0014] Further, the linear direction of the plurality of first communication grooves is in the same circumference.

[0015] Further, the water leakage-proof structure includes a water leakage-proof sleeve head sleeved on the port of the U-shaped structure pipe.

[0016] Still further, the water leakage-proof sleeve head is a tapered surface structure with a narrow outer end and a wide inner end, and a plurality of continuous first step grooves are arranged on the tapered surface thereof;

[0017] The socket end of the pipe connector is arranged as a tapered surface structure with a wide outer end and a narrow inner end, the tapered surface of the pipe connector is arranged with a second step groove matched with the first step groove, and the first step groove and the second step groove are reverse threaded.

[0018] Further, the end cover near the water inlet and the water outlet is provided with two pipe passing holes.

[0019] Still further, one of the pipe passing holes is opposite to the water inlet, and the other pipe passing hole is opposite to the water outlet.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] 1. The utility model discloses a high -efficient cooling can: through the first axial hole, second axial hole of ring array distribution and the pipe cavity structure that is formed by first intercommunication groove, second intercommunication groove, cooperation U type structure pipe and pipe connecting piece form reciprocating type pipeline, and cooling liquid can flow through the main shaft portion, magnetic suspension bearing assembly and other heat -generating sites fully, greatly improved the cooling efficiency.

[0022] 2. The utility model discloses compact structure: the setting of each component closely cooperate, realizes efficient cooling circulation under the condition of not occupying too much space, makes the overall structure of the air blower more compact and reasonable.

[0023] 3. The utility model discloses a water leakage prevention structure: the special taper surface structure and step groove reverse buckle design of water leakage prevention sleeve head and pipe connecting piece socket end, effectively prevent the leakage of cooling liquid, guarantee cooling circulation system stable operation. DRAWINGS

[0024] Figure 1 It is the structure diagram after cutting part of the utility model discloses air magnetic suspension centrifugal air blower.

[0025] Figure 2 It is the structure diagram after cutting part of the utility model discloses main shaft portion shell.

[0026] Figure 3 It is the structure diagram after cutting part of the utility model discloses magnetic suspension bearing assembly.

[0027] Figure 4 It is the first visual angle pre -installation structure diagram of the utility model discloses magnetic suspension bearing assembly and end cover.

[0028] Figure 5 It is the second visual angle pre -installation structure diagram of the utility model discloses magnetic suspension bearing assembly and end cover.

[0029] Figure 6 It is the connection structure schematic diagram of the utility model discloses U type structure pipe and pipe connecting piece.

[0030] Figure 7 It is the port connection structure of the utility model discloses U type structure pipe and pipe connecting piece enlarged view.

[0031] Figure 8 It is the end view of the utility model discloses U type structure pipe and pipe connecting piece after connecting.

[0032] Mark in the drawing: main shaft portion 1, magnetic suspension bearing assembly 2, support seat 3, impeller portion 4, end cover 5, U type structure pipe 6, pipe connecting piece 7, first axial hole 11, first intercommunication groove 21, second axial hole 22, second intercommunication groove 51, water leakage prevention sleeve head 61, first U type structure cavity 62, water inlet 63, water outlet 64, socket end 71. DETAILED DESCRIPTION

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] Example 1: The specific structure of this utility model is as follows:

[0036] Please refer to the appendix. Figures 1-8 This utility model discloses an air magnetic levitation centrifugal blower with a cooling circulation structure, comprising a main shaft 1, two sets of magnetic levitation bearing assemblies 2 mounted at both ends of the main shaft 1, two end caps 5, and two sets of impellers 4. An end cap 5 is fixed to the outer end of any one set of magnetic levitation bearing assemblies 2, and the two sets of impellers 4 are fixed one-to-one to the outer ends of the two end caps 5. The main shaft 1, magnetic levitation bearing assemblies 2, and impellers 4 are mounted on a support base 3. The air magnetic levitation centrifugal blower also includes a cooling circulation structure, which comprises:

[0037] A plurality of first axial holes 11 are provided on the outer shell of the main shaft 1 and arranged in a ring array, such as Figure 2 As shown, the first axial hole 11 has 14 holes;

[0038] A plurality of second axial holes 22 are provided on the outer shell of the magnetic levitation bearing assembly 2 and are arranged in a ring array. The plurality of first axial holes 11 and the plurality of second axial holes 22 are coaxially arranged one-to-one to form coaxial holes. There are 14 second axial holes 22.

[0039] A plurality of first connecting slots 21 are provided on the outer end of the housing of the magnetic levitation bearing assembly 2 and are arranged in a ring array without intersecting each other. The first connecting slots 21 connect two adjacent second axial holes 22 end-to-end; there are 7 first connecting slots 21.

[0040] A plurality of second connecting grooves 51 are provided on the end cap 5 and arranged in a ring array. The plurality of second connecting grooves 51 and the plurality of first connecting grooves 21 are arranged one-to-one facing each other. The first connecting grooves 21 and the second connecting grooves 51 form a cavity structure. The cavity structure is used to position the tube connector 7. There are 7 second connecting grooves 21.

[0041] U-shaped structure pipe 6, the number is equal to the first communication groove 21, both ends of each first communication groove 21 are inserted into one of the U-shaped structure pipe 6, and the inserted end of each U-shaped structure pipe 6 is exposed in the first communication groove 21 in the other end face, and the U-shaped structure pipe 6 has a first U-shaped structure cavity 62 penetrating both ends; there are 7 U-shaped structure pipes 6;

[0042] A plurality of pipe connectors 7 connect the ports of the plurality of U-shaped structure pipes 6 end to end, so that the plurality of U-shaped structure pipes 6 and the plurality of pipe connectors 7 form a reciprocating pipe, which has a water inlet 63 and a water outlet 64, the connection structure between the pipe connector 7 and the port of the U-shaped structure pipe 6 is leak-proof, and the pipe connector 7 has a second U-shaped structure cavity penetrating both ends.

[0043] In order to make the pipe connector 7 also in the pipe cavity composed of the first communication groove 21 and the second communication groove 51, the left magnetic suspension bearing assembly 2 and the right magnetic suspension bearing assembly 2 are arranged in a staggered manner, and similarly, the left end cover 5 and the right end cover 5 are also arranged in a staggered manner, so that the pipe cavities on both sides and the coaxial holes form a water pipe.

[0044] The linear direction of the plurality of first communication grooves 21 is in the same circumference, in order to match the arc of the first communication groove 21, the bottom end of the U-shaped structure pipe 6 and the pipe connector 7 are also arranged in an arc shape.

[0045] The leak-proof connection structure includes a leak-proof sleeve head 61 which is sleeved on the port of the U-shaped structure pipe 6. The leak-proof sleeve head 61 is a tapered structure with a narrow outer end and a wide inner end, and a plurality of continuous first step grooves are arranged on the tapered surface thereof; the socket end 71 of the pipe connector 7 is arranged in a tapered structure with a wide outer end and a narrow inner end, and the tapered surface of the pipe connector 7 is provided with second step grooves matched with the first step grooves, and the first step grooves and the second step grooves are reverse threaded.

[0046] The end cover 5 near the water inlet 63 and the water outlet 64 is provided with two pipe passing holes, one of which is opposite the water inlet 63, and the other of which is opposite the water outlet 64. One of the pipe passing holes is provided with an inlet pipe, and the other pipe passing hole is provided with an outlet pipe, and the inlet pipe is connected to the water inlet 63, and the outlet pipe is connected to the water outlet 64, and a water circulation power device and a heat exchanger are connected in series between the inlet pipe and the outlet pipe, cold water in and hot water out, achieving the purpose of heat dissipation.

[0047] In summary, the utility model can efficiently cool: through the first axial hole, second axial hole of ring array distribution and the pipe cavity structure that is formed by first communicating groove, second communicating groove, reciprocating pipe line that cooperation U type structure pipe and pipe connecting piece form, cooling liquid can flow through the main shaft part, magnetic suspension bearing assembly and other heat generating parts, greatly improve the cooling efficiency. The utility model structure is compact: the setting of each part is closely matched, realizes efficient cooling circulation under the condition of not occupying too much space, makes the overall structure of the air blower more compact and reasonable. The utility model has the anti-leakage structure: the special taper surface structure and the step groove reverse buckle design of anti-leakage sleeve head and pipe connecting piece socket end, effectively prevent cooling liquid leakage, guarantee cooling circulation system stable operation.

[0048] The above only for the preferred implementation of the utility model, not therefore limit the patent range of the utility model, all equivalent structures or equivalent process transformation that use the contents of the utility model specification and drawings, or directly or indirectly apply in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An air magnetic levitation centrifugal blower with a cooling circulation structure, comprising a main shaft part (1), two sets of magnetic levitation bearing assemblies (2) installed at both ends of the main shaft part (1), two end covers (5), and two sets of impeller parts (4), wherein the outer end of any one set of magnetic levitation bearing assemblies (2) is fixed with an end cover (5), and the two sets of impeller parts (4) are fixed one by one at the outer end of the two end covers (5), characterized in that, The air magnetic suspension centrifugal blower further comprises a cooling circulation structure, which comprises: a plurality of first axial holes (11) arranged in a ring array on the outer shell of the main shaft part (1); a plurality of second axial holes (22) arranged in a ring array on the outer shell of the magnetic suspension bearing assembly (2), the plurality of first axial holes (11) and the plurality of second axial holes (22) being coaxially arranged one by one to form coaxial holes; a plurality of first communication grooves (21) arranged in a ring array and not intersecting on the outer end of the outer shell of the magnetic suspension bearing assembly (2), the first communication grooves (21) communicating the ends of two adjacent second axial holes (22); a plurality of second communication grooves (51) arranged in a ring array on the cover surface of the end cover (5), the plurality of second communication grooves (51) and the plurality of first communication grooves (21) being arranged opposite to each other one by one, the first communication grooves (21) and the second communication grooves (51) forming a lumen structure; a plurality of U-shaped structure tubes (6) equal in number to the first communication grooves (21), both ends of each first communication groove (21) being inserted into one of the U-shaped structure tubes (6), the insertion end of each U-shaped structure tube (6) being exposed in the first communication groove (21) in the other end surface, the U-shaped structure tube (6) having a first U-shaped structure cavity (62) penetrating both ends; a plurality of pipe connectors (7) connecting the ports of the plurality of U-shaped structure tubes (6) end to end, so that the plurality of U-shaped structure tubes (6) and the plurality of pipe connectors (7) form a reciprocating pipeline, the reciprocating pipeline having a water inlet (63) and a water outlet (64), the connection structure between the pipe connector (7) and the port of the U-shaped structure tube (6) being a water leakage prevention structure, the pipe connector (7) having a second U-shaped structure cavity penetrating both ends.

2. The air magnetic levitation centrifugal blower having a cooling circulation structure according to claim 1, characterized by, The linear direction of the plurality of first communication grooves (21) is in the same circumference.

3. The air magnetic levitation centrifugal blower with cooling circulation structure according to claim 1, characterized in that, The water leakage prevention structure comprises a water leakage prevention sleeve head (61) sleeved on the port of the U-shaped structure tube (6).

4. The air magnetic levitation centrifugal blower having a cooling circulation structure according to claim 3, characterized by, The water leakage prevention sleeve head (61) is a tapered structure with a narrow outer end and a wide inner end, and a plurality of continuous first stepped grooves are arranged on the tapered surface thereof; The socket end (71) of the pipe connector (7) is arranged in a tapered structure with a wide outer end and a narrow inner end, and the tapered surface of the pipe connector (7) is provided with a second stepped groove matched with the first stepped groove, the first stepped groove and the second stepped groove being reverse threaded.

5. The air magnetic levitation centrifugal blower with cooling circulation structure according to claim 1, characterized in that, The end cover (5) near the water inlet (63) and the water outlet (64) is provided with two pipe passing holes.

6. The air magnetic levitation centrifugal blower having a cooling circulation structure according to claim 5, characterized by, One of the pipe passing holes is opposite to the water inlet (63), and the other pipe passing hole is opposite to the water outlet (64).

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