CN113107853A

CN113107853A - Inside cooling mechanism of roots's fan

Info

Publication number: CN113107853A
Application number: CN202110413962.XA
Authority: CN
Inventors: 张登明
Original assignee: Individual
Current assignee: Angel Yeast Yichang Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-07-13
Anticipated expiration: 2041-04-16
Also published as: CN113107853B

Abstract

The invention relates to the technical field of energy conservation and environmental protection, and discloses an internal cooling mechanism of a Roots blower, which comprises a shell, wherein an air inlet is formed in the upper end of the shell, an air outlet is formed in the front surface of the shell, rotors are movably mounted on two sides of the inner cavity of the shell, a diaphragm is movably connected to the outer side of each rotor, a liquid storage cavity located on one side of the diaphragm is formed in the middle of the inner cavity of each rotor, and hydraulic oil is filled in the inner cavity of each liquid storage cavity. By arranging the internal cooling mechanism, when the Roots blower works normally, the rotors can press the diaphragm back inwards through the rotors, so that hydraulic oil in the liquid storage cavity presses the piston rod inwards, the volume of gas in the cooling cavity expands rapidly, the gas absorbs heat, the interior of the rotors is cooled slowly, the working time of the Roots blower at the normal working temperature is ensured, and the service life of the Roots blower is further ensured.

Description

Inside cooling mechanism of roots's fan

Technical Field

The invention relates to the technical field of energy conservation and environmental protection, in particular to an internal cooling mechanism of a Roots blower.

Background

The roots blower is a positive displacement blower, the end face of an impeller and the front and back end covers of the blower, the principle is a rotary compressor which compresses and conveys gas by utilizing the relative motion of two blade-shaped rotors in a cylinder, the blower has simple structure and convenient manufacture, is widely applied to aquaculture oxygenation, sewage treatment aeration and cement conveying, is more suitable for gas conveying and pressurizing systems in low-pressure occasions, and can also be used as a vacuum pump and the like.

Traditional roots's fan is carrying out the during operation, because the single carries out gas transportation volume less, make need the rotor to rotate pressure and the transport capacity that just can ensure wind-force and carry with higher rotational speed, thereby caused a large amount of energy extravagant, and when the rotor rotated with higher rotational speed, under frictional force and gas compression's effect, make the inside intensification of roots's fan faster, though there is the wind cooling, still can't make it keep working at normal operating temperature for a long time, thereby roots's fan working life has been reduced, sewage treatment cost has been increased.

Disclosure of Invention

Aiming at the defects of the prior Roots blower in the use process, the invention provides an internal cooling mechanism of the Roots blower, which has the advantages of internal cooling and wind power enhancement and solves the technical problems in the prior art.

The invention provides the following technical scheme: the utility model provides an inside cooling mechanism of roots's fan, includes the casing, the wind gap has been seted up to the upper end of casing, the air outlet has been seted up in the front of casing, the effect both sides movable mounting of casing inner chamber has the rotor, the outside swing joint of rotor has the diaphragm, the stock solution chamber that is located diaphragm one side is seted up at the middle part of rotor inner chamber, and the inner chamber in stock solution chamber is filled has hydraulic oil, the piston rod that is located stock solution chamber one side is cup jointed in the inner chamber activity of rotor, and the piston rod is made for the copper material, the inner chamber of rotor is provided with the cooling chamber that is located.

Preferably, the inner cavity of the rotor is provided with an air suction cavity located on the outer side of the bottom end of the piston rod, the outer side of the air suction cavity is movably connected with the outer side of the bottom end of the piston rod through a first spring, and the inner side of the rotor is provided with a ventilation groove communicated with the air suction cavity and the outside.

Preferably, an adjusting block is movably sleeved on one side of the inner cavity of the ventilation groove, the upper surface of the outer side of the adjusting block is a plane perpendicular to the ventilation groove, the lower surface of the outer side of the adjusting block is an inclined plane, and the inner side of the adjusting block is movably connected with one side of the inner cavity of the rotor through a second spring.

The invention has the following beneficial effects:

1. by arranging the internal cooling mechanism, when the Roots blower works normally, the rotors can press the diaphragm back inwards through the rotors, so that hydraulic oil in the liquid storage cavity presses the piston rod inwards, the volume of gas in the cooling cavity expands rapidly, the gas absorbs heat, the interior of the rotors is cooled slowly, the working time of the Roots blower at the normal working temperature is ensured, and the service life of the Roots blower is further ensured.

2. The wind power enhancing mechanism is arranged, so that when the Roots blower works normally, the Roots blower can reciprocate continuously under the action of the internal cooling mechanism and the first spring through the piston rod, air suction is performed at the air inlet through the ventilation groove in the air suction cavity, air is exhausted outwards at the air outlet, the quantity and pressure of gas exhausted outwards at the air outlet are enhanced, the same air displacement and pressure can be achieved under the condition of reducing the rotating speed of the rotor, and the energy loss is reduced.

3. According to the invention, the air suction adjusting mechanism is arranged, so that air is sucked inwards through the ventilation groove in the wind power enhancing mechanism, the aperture of the ventilation groove is reduced under the action of the second spring and the adjusting block, the volume of gas in the air suction cavity is rapidly increased and then reduced, and the gas absorbs a small amount of heat, and when the air is blown outwards, the inclined plane is impacted by wind power under the action of the inclined plane on the inner side of the adjusting block, so that the adjusting block can overcome the elastic force of the second spring and retract inwards, the wind power in the air suction cavity is rapidly discharged, and the heat released by the compression of the volume of the gas is smaller than the heat absorbed when the volume is reduced, thereby further enhancing the cooling efficiency of the internal cooling mechanism.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

fig. 3 is an enlarged schematic view of a point a in the structure diagram 2 of the present invention.

In the figure: 1. a housing; 2. an air inlet; 3. an air outlet; 4. a rotor; 5. a diaphragm; 6. a liquid storage cavity; 7. a piston rod; 8. a cooling chamber; 9. a suction chamber; 10. a first spring; 11. a ventilation slot; 12. a second spring; 13. and a regulating block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an internal cooling mechanism of a roots blower comprises a housing 1, an air inlet 2 is disposed at the upper end of the housing 1, an air outlet 3 is disposed at the front of the housing 1, rotors 4 are movably mounted at both sides of an inner cavity of the housing 1, a diaphragm 5 is movably connected to the outer side of the rotor 4, a liquid storage cavity 6 located at one side of the diaphragm 5 is disposed at the middle part of the inner cavity of the rotor 4, hydraulic oil is filled in the liquid storage cavity 6, a piston rod 7 located at one side of the liquid storage cavity 6 is movably sleeved in the inner cavity of the rotor 4, hydraulic oil is filled in the inner cavity of the liquid storage cavity 6, so that when the diaphragm 5 is pressed, the hydraulic oil can push the piston rod 7 to move to one side, the cooling mechanism does not rotate around the rotors 4 at both sides, works six times, and the piston rod 7 is made of copper material, and has good, can conduct to rotor 4 wholly fast through piston rod 7, thereby make cooling mechanism cooling efficiency further promote, the inner chamber of rotor 4 is provided with the cooling chamber 8 that is located piston rod 7 bottom inboard, and the intussuseption of cooling chamber 8 is filled with a small amount of gas, cooling mechanism in the rotor 4 outside blade is in different planes respectively, through normally working at roots's fan, and rotate to specific when being the position at rotor 4, extrude each other between the rotor 4 of both sides, make diaphragm 5 receive the oppression, thereby make the hydraulic oil in the stock solution chamber 6 promote piston rod 7 to the outside and remove, and then make the volume increase in cooling chamber 8, thereby make its inside a small amount of gaseous volume inflation, and under the endothermic effect of inflation, make rotor 4 slow cooling.

Wherein, the inner cavity of the rotor 4 is provided with an air suction cavity 9 positioned at the outer side of the bottom end of the piston rod 7, the outer side of the air suction cavity 9 is movably connected with the outer side of the bottom end of the piston rod 7 through a first spring 10, so that when the internal cooling mechanism works normally, the piston rod 7 can continuously reciprocate under the cooperation of the first spring 10, thereby the volume of the air suction cavity 9 is continuously changed, the inner side of the rotor 4 is provided with a ventilation groove 11 for communicating the air suction cavity 9 with the outside, the cooling mechanism is arranged below the diaphragm 5, so that when the internal cooling mechanism works normally, the volume of the air suction cavity 9 can be increased under the action of the volume reduction of the air suction cavity 9, and when a blade with the cooling mechanism rotates to the lower part of the air inlet 2, the diaphragm 5 corresponding to the blade is released and under the elastic force action of the first spring 10, and the volume of the air suction cavity 9 is increased and is sucked and punched through the ventilation groove 11, thereby ensuring the continuous work of the wind power strengthening mechanism.

Wherein, one side of the inner cavity of the ventilation slot 11 is movably sleeved with an adjusting block 13, the upper surface of the outer side of the adjusting block 13 is a plane vertical to the ventilation slot 11, and the lower surface of the outer side of the adjusting block 13 is an inclined surface, so that when the adjusting block 13 is impacted by inward air flow, the position of the adjusting block 13 cannot be changed, and when the adjusting block 13 is impacted by outward air flow, the opening of the ventilation slot 11 is staggered and closed, under the action that the lower surface of the outer side of the adjusting block 13 is the inclined surface, the adjusting block 13 is forced to push back inwards, so that the adjusting block 13 moves inwards, the opening of the ventilation slot 11 is opened, the inner side of the adjusting block 13 is movably connected with one side of the inner cavity of the rotor 4 through a second spring 12, so that after the outward impact of the air flow is completed, under the action that the second spring 12 quickly resets the adjusting block 13, when the direction of the air flow changes, the diameter of the opening of the ventilation slot 11 can, through making the chamber 9 of induced drafting breathe in at wind-force reinforcing mechanism, the aperture of ventilation groove 11 is less, make it breathe in efficiency lower, and then make the intracavity gas that induced drafts 9 longer under being in the expansion state, and make when induced draft chamber 9 and be in the exhaust stage, the aperture of ventilation groove 11 strengthens, thereby make its exhaust efficiency faster, and then make the exothermic efficiency of inside gas compression be less than the endothermic efficiency of gas expansion, make can cool down rotor 4 in step when carrying out the wind-force reinforcing at every turn in the chamber 9 of induced drafting, thereby further strengthen the cooling efficiency of inside cooling mechanism.

The using method of the invention is as follows: the Roots blower is arranged at a proper position of the sewage treatment mechanism, the air inlet 2 is connected with the outside, the air outlet 3 is connected with an aeration port on the bottom surface of the sewage pool, the motor is started to drive the rotors 4 at the two sides to rotate relatively, so that the outside continuously conveys gas into the shell 1 under the action of negative pressure, and the gas in the shell 1 is forced outwards under the action of the pressure of the rotors 4 at the two sides to aerate the sewage;

internal cooling: when the roots blower normally works, the diaphragm 5 is mutually extruded through the rotors 4 on the two sides, hydraulic oil in the liquid storage cavity 6 moves to the inner side under the action of pressure, and the piston rod 7 is pushed to the inner side, so that the volume of the cooling cavity 8 is increased, and further the volume of a small amount of gas in the cooling cavity 8 is increased, and under the action of gas expansion heat absorption, the gas absorbs a small amount of heat, the piston rod 7 made of copper materials conducts heat, and under the action of six times of heat absorption in the rotation of the rotor 4, the rotor 4 is slowly cooled.

Wind power enhancement: when the roots blower normally works, under the effect of inside cooling mechanism and first spring 10, make piston rod 7 constantly reciprocating motion in 4 inner chambers of rotor, thereby make ventilation groove 11 be in the volume increase of chamber 9 that induced drafts when going into wind gap 2 below, and make ventilation groove 11 be in 3 inboard times air outlet the volume of chamber 9 that induced drafts, thereby make the gas discharge volume of 3 departments of air outlet increase, and then make the gas pressure increase, and under the effect that regulating block 13 and second spring 12 adjusted ventilation groove 11's opening size, when making chamber 9 that induced drafts inwards breathe in, ventilation groove 11's aperture reduces, and when chamber 9 that induced drafts outwards exhausts, ventilation groove 11's aperture increase, thereby the heat absorption efficiency when making chamber 9 that induced drafts the internal gas inflation is greater than the compression efficiency when outwards exhausting, thereby make rotor 4 further cool down.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 an inside cooling mechanism of roots's fan, includes casing (1), income wind gap (2) have been seted up to the upper end of casing (1), air outlet (3), its characterized in that have been seted up in the front of casing (1): the utility model discloses a hydraulic pump, including casing (1), effect both sides movable mounting of casing (1) inner chamber has rotor (4), the outside swing joint of rotor (4) has diaphragm (5), liquid storage chamber (6) that are located diaphragm (5) one side are seted up at the middle part of rotor (4) inner chamber, and the inner chamber packing of liquid storage chamber (6) has hydraulic oil, piston rod (7) that are located liquid storage chamber (6) one side are cup jointed in the inner chamber activity of rotor (4), and piston rod (7) make for the copper material, the inner chamber of rotor (4) is provided with and is located piston rod (7) bottom inboard cooling chamber (8).

2. The internal cooling mechanism of a roots blower as set forth in claim 1, wherein: the inner chamber of rotor (4) is provided with the chamber (9) that induced drafts that is located the piston rod (7) bottom outside, the outside in chamber (9) and the outside of piston rod (7) bottom of induced drafting is through first spring (10) swing joint, ventilation groove (11) with air suction chamber (9) and external intercommunication are seted up to the inboard of rotor (4).

3. The internal cooling mechanism of a roots blower as claimed in claim 2, wherein: adjusting block (13) has been cup jointed in the activity of one side of ventilation groove (11) inner chamber, the upper surface in adjusting block (13) outside is for the plane with ventilation groove (11) vertically, and the lower surface in adjusting block (13) outside is the inclined plane, second spring (12) swing joint is passed through with one side of rotor (4) inner chamber to the inboard of adjusting block (13).