CN210660576U

CN210660576U - Dry-type oil-free screw compressor

Info

Publication number: CN210660576U
Application number: CN201921530440.2U
Authority: CN
Inventors: 盛昌国
Original assignee: Denair Energy Equipment Co Ltd
Current assignee: Denair Energy Equipment Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-02
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a dry-type oil-free screw compressor, which comprises an outer shell and a screw body arranged in the outer shell, wherein a connecting shaft is integrally processed at the right end of the screw body, the right end of the connecting shaft penetrates through the outer shell and extends to the outside of the outer shell, a radial bearing is fixedly arranged at the left side of the screw body, and a synchronous gear is fixedly arranged at the left end of the radial bearing; the utility model discloses an shell body, the screw rod body, the connecting axle, journal bearing, synchronizing gear, the ring pipe, the installation leg, the connecting pipe, the heat dissipation end cover, the reinforcing plate, fixed plate and radiator fan's setting, the heat conduction structural design who has solved traditional compressor is in the outside of compressor, its inside heat only dispels through heat radiation structure, can not reach the problem of fine cooling effect, this dry-type does not have oily screw compressor, possess can effectively dispel the heat and can derive the advantage of heat fast to the inner chamber, be worth promoting.

Description

Dry-type oil-free screw compressor

Technical Field

The utility model relates to a compressor technical field specifically is a dry-type does not have oily screw compressor.

Background

The medium in the compression cavity of the oil-free screw is not contacted with lubricating oil, so the oil-free screw is called as the oil-free screw, the dry screw is also called as the dry screw because the compression cavity is dry, the dry screw is still classified as the oil-free screw because the dry screw has the characteristics of non-contact of a male rotor and a female rotor, driving of the screw by a synchronous gear, separation of the gear box oil from the liquid in the compression cavity and the like in structure, but the characteristic that the gas medium of a compressor is not contacted with any other medium which is the most main characteristic of the dry screw compressor is lost in function, the liquid injected into the compression cavity plays the roles of lubrication, sealing, cooling and noise reduction, and the liquid spraying compressor has relatively lower cost compared with the dry screw under the condition that the liquid medium is not reacted with the compressed medium.

In chinese patent No.: 201720544296.2, it has increased the area of contact of cooling tube and fin through set up the conducting strip at cooling tube and fin junction to reinforcing radiating effect, but the heat conduction structural design is in the outside of compressor, and its inside heat only dispels through heat radiation structure, can not reach fine cooling effect, and the compressor that can effectively dispel the heat and can derive the heat with the inner chamber for this proposes and solves this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type does not have oily screw compressor possesses the advantage that can effectively dispel the heat and can derive the heat fast to the inner chamber, and the heat conduction structural design who has solved traditional compressor is in the outside of compressor, and its inside heat only disperses through heat radiation structure, can not reach the problem of fine cooling effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dry-type does not have oily screw compressor, includes the shell body and sets up at its inside screw rod body, the right-hand member integrated processing of screw rod body has the connecting axle, the right-hand member of connecting axle runs through the shell body and extends to the outside of shell body, the left side fixed mounting of screw rod body has journal bearing, journal bearing's left end fixed mounting has synchronizing gear, the part that the shell body inner chamber is close to the inner wall is provided with the toroidal tube, install the installation leg around the toroidal tube, the bolt connection between the inner wall of installation leg and shell body, the intercommunication has the connecting pipe between the toroidal tube, the left side of shell body is provided with the heat dissipation end cover, the bolt connection has the reinforcing plate between shell body and the heat dissipation end cover, the inner wall bolt connection of heat dissipation end.

Preferably, the number of the annular pipes is four, a certain interval is reserved between every two adjacent annular pipes, and the connecting pipes are made of the same material as the annular pipes.

Preferably, the outer side of the radial bearing is provided with a limiting groove plate, the radial bearing and the inner wall of the limiting groove plate are fixedly installed, and an oil chamber is fixedly connected to the outer portion of the limiting groove plate.

Preferably, the right side bolt of shell body inner chamber has the heat conduction dish, the welding of the left side of heat conduction dish has the heat conduction ring, the heat conduction ring is provided with three rings, and the material of heat conduction ring is pure copper, the material of heat conduction dish is the aluminum alloy.

Preferably, one side of the annular pipe, which is far away from the connecting pipe, is communicated with a folded pipe, the upper side and the lower side of the outer shell are both provided with cooling liquid boxes, and the communicated part of the folded pipe and the cooling liquid boxes is provided with an electromagnetic valve.

Preferably, a first through hole is formed in the left side of the outer shell, a second through hole is formed in the left side of the heat dissipation end cover, the number of the second through holes is larger than that of the first through holes, and a dust screen is bolted to the left side of the inner wall of the heat dissipation end cover.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an shell body, the screw rod body, the connecting axle, journal bearing, synchronizing gear, the ring pipe, the installation leg, the connecting pipe, the heat dissipation end cover, the reinforcing plate, fixed plate and radiator fan's setting, the heat conduction structural design who has solved traditional compressor is in the outside of compressor, its inside heat only dispels through heat radiation structure, can not reach the problem of fine cooling effect, this dry-type does not have oily screw compressor, possess can effectively dispel the heat and can derive the advantage of heat fast to the inner chamber, be worth promoting.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the structure of the heat conducting plate of the present invention;

fig. 3 is a schematic perspective view of the structure of the ring tube of the present invention.

In the figure: the structure comprises an outer shell 1, a screw rod body 2, a connecting shaft 3, a radial bearing 4, a synchronous gear 5, a ring pipe 6, a mounting leg 7, a connecting pipe 8, a heat dissipation end cover 9, a reinforcing plate 10, a fixing plate 11, a heat dissipation fan 12, a limiting groove plate 13, an oil chamber 14, a heat conduction disc 15, a heat conduction ring 16, a folded pipe 17, a cooling liquid box 18, an electromagnetic valve 19, a first through hole 20, a second through hole 21 and a dust screen 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a dry type oil-free screw compressor comprises an outer shell 1 and a screw body 2 arranged inside the outer shell, a connecting shaft 3 is integrally processed at the right end of the screw body 2, the right end of the connecting shaft 3 penetrates through the outer shell 1 and extends to the outside of the outer shell 1, a radial bearing 4 is fixedly arranged at the left side of the screw body 2, a synchronizing gear 5 is fixedly arranged at the left end of the radial bearing 4, a ring-shaped pipe 6 is arranged at the inner cavity of the outer shell 1 close to the inner wall, mounting legs 7 are arranged around the ring-shaped pipe 6, the mounting legs 7 are bolted with the inner wall of the outer shell 1, a connecting pipe 8 is communicated between the ring-shaped pipes 6, a heat dissipation end cover 9 is arranged at the left side of the outer shell 1, a reinforcing plate 10 is bolted between the outer shell 1 and the heat dissipation end cover 9, through shell body 1, screw rod body 2, connecting axle 3, journal bearing 4, synchronizing gear 5, ring pipe 6, installation leg 7, connecting pipe 8, heat dissipation end cover 9, reinforcing plate 10, fixed plate 11 and radiator fan 12's setting, the heat conduction structural design who has solved traditional compressor is in the outside of compressor, its inside heat only dispels through heat radiation structure, can not reach the problem of fine cooling effect, this dry-type does not have oily screw compressor, possess and can effectively dispel the heat and can derive the advantage fast with the heat to the inner chamber, be worth promoting.

In this embodiment, the quantity of annular pipe 6 is four, and all leaves certain interval between per two adjacent annular pipe 6, and the material of connecting pipe 8 is the same with annular pipe 6's material, through setting up four rows of annular pipe 6, can help absorbing the heat of shell body 1 inner chamber, is not closely arranged between them simultaneously, can increase with hot-air's area of contact, improves heat absorption efficiency.

In this embodiment, the outside of radial bearing 4 is provided with spacing frid 13, fixed mounting between the inner wall of radial bearing 4 and spacing frid 13, and the outside fixedly connected with grease chamber 14 of spacing frid 13 through the setting of spacing frid 13, can carry out spacingly to radial bearing 4's side motion, through the setting of spacing frid 13, can play oily cold effect.

In this embodiment, the right side bolt of the inner chamber of the outer casing 1 is connected with the heat conducting disc 15, the left side welding of the heat conducting disc 15 is provided with the heat conducting ring 16, the heat conducting ring 16 is provided with three rings, the material of the heat conducting ring 16 is pure copper, the material of the heat conducting disc 15 is aluminum alloy, and the heat of the inner chamber of the outer casing 1 can be removed to the greatest extent by means of the excellent heat conducting effect of copper and the excellent heat dissipating effect of aluminum alloy.

In this embodiment, one side of the annular tube 6, which is far away from the connecting tube 8, is communicated with a folded tube 17, coolant boxes 18 are installed on the upper and lower sides of the outside of the outer shell 1, electromagnetic valves 19 are arranged at the positions where the folded tube 17 is communicated with the coolant boxes 18, the coolant boxes 18 are used for supplying cooling water to the inside of the annular tube 6, and the electromagnetic valves 19 are used for opening at fixed time intervals to change water.

In this embodiment, a first through hole 20 is formed in the left side of the outer casing 1, a second through hole 21 is formed in the left side of the heat dissipation end cover 9, the number of the second through holes 21 is greater than the number of the first through holes 20, a dust screen 22 is bolted to the left side of the inner wall of the heat dissipation end cover 9, the first through hole 20 and the second through hole 21 are arranged to circulate air when the heat dissipation fan 12 works, and meanwhile, the dust screen 22 can prevent external dust from entering the inner cavity of the outer casing 1.

The working principle is as follows: when the solenoid valve 19 is opened, the inside coolant liquid of coolant liquid box 18 exchanges through the inside coolant liquid of roll over type pipe 17 and ring pipe 6, ring pipe 6 absorbs sufficient heat in 1 inner chamber of shell and can lead to the liquid of its inboard intensification, the higher liquid of temperature can upwelling, reach cold and hot exchange's effect, furthermore, the heat is absorbed through heat conduction ring 16, heat conduction ring 16 is heat transfer to heat conduction dish 15, dispel to the external world through heat conduction dish 15 and shell body 1, the left radiator fan 12 work of shell body 1, discharge the heat of 1 inner chamber of shell body to the outside of cooling end cover 9 through first through-hole 20 and second through-hole 21.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dry-type does not have oily screw compressor, includes shell body (1) and sets up screw body (2) inside it, its characterized in that: the right end of the screw body (2) is integrally processed with a connecting shaft (3), the right end of the connecting shaft (3) penetrates through the outer shell (1) and extends to the outside of the outer shell (1), a radial bearing (4) is fixedly mounted on the left side of the screw body (2), a synchronizing gear (5) is fixedly mounted on the left end of the radial bearing (4), a ring-shaped pipe (6) is arranged on the part, close to the inner wall, of the inner cavity of the outer shell (1), a mounting leg (7) is mounted around the ring-shaped pipe (6), the mounting leg (7) is bolted with the inner wall of the outer shell (1), a connecting pipe (8) is communicated between the ring-shaped pipes (6), a heat dissipation end cover (9) is arranged on the left side of the outer shell (1), a reinforcing plate (10) is bolted between the outer shell (1) and the heat dissipation end cover (9), a fixing plate (11, and a heat radiation fan (12) is arranged in the middle of the fixing plate (11).

2. A dry oil-free screw compressor as claimed in claim 1, wherein: the number of the annular pipes (6) is four, a certain interval is reserved between every two adjacent annular pipes (6), and the material of the connecting pipe (8) is the same as that of the annular pipes (6).

3. A dry oil-free screw compressor as claimed in claim 1, wherein: the outer side of the radial bearing (4) is provided with a limiting groove plate (13), the radial bearing (4) and the inner wall of the limiting groove plate (13) are fixedly installed, and an oil chamber (14) is fixedly connected to the outer portion of the limiting groove plate (13).

4. A dry oil-free screw compressor as claimed in claim 1, wherein: the right side bolt of shell body (1) inner chamber has heat conduction dish (15), the left side welding of heat conduction dish (15) has heat conduction ring (16), heat conduction ring (16) are provided with three rings, and the material of heat conduction ring (16) is pure copper, the material of heat conduction dish (15) is the aluminum alloy.

5. A dry oil-free screw compressor as claimed in claim 1, wherein: one side of the annular pipe (6) far away from the connecting pipe (8) is communicated with a folded pipe (17), the upper side and the lower side of the outer shell (1) are respectively provided with a cooling liquid box (18), and the part where the folded pipe (17) is communicated with the cooling liquid box (18) is provided with an electromagnetic valve (19).

6. A dry oil-free screw compressor as claimed in claim 1, wherein: first through-hole (20) have been seted up to the left side of shell body (1), second through-hole (21) have been seted up to the left side of heat dissipation end cover (9), the quantity of second through-hole (21) is more than the quantity of first through-hole (20), dust screen (22) have been bolted to the left side of heat dissipation end cover (9) inner wall.