Screw air compressor shell

Abstract

The utility model belongs to the technical field of screw air compressor shells, and particularly relates to a screw air compressor shell. The female and male rotor slots comprise a first female and male rotor slot and a second female and male rotor slot; the oil guide channel is arranged on the inner wall of the female and male rotor groove; the cooling groove is connected with the first female and male rotor groove and the second female and male rotor groove; the cooler is arranged in the cooling tank; and the oil sprayer penetrates through the shell and is connected into the female and male rotor groove. Lubricating oil thrown out by rotation of the female rotor and the male rotor is rapidly collected and guided through the oil guide groove, the oil sprayer sprays the lubricating oil into the shell, the cooler cools an oil-gas mixture, the temperature in the shell is reduced, and abrasion of the screw air compressor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw air compressors, and in particular relates to a screw air compressor housing. Background Art

[0002] Existing technology As an important industrial equipment, screw air compressors are widely used in various occasions where compressed air is required. The screw air compressor housings on the market are currently of one-piece design and split design, and the compression housing and the cooling device are manufactured separately, and the oil-gas mixture is not cooled sufficiently in the housing during the air compression process. Utility Model Content

[0003] The purpose of the utility model is to provide a screw air compressor housing in view of the above-mentioned technical problems, in which the oil-gas mixture is cooled in the housing during the air compression process, the internal temperature of the housing is lowered, and the wear of the screw air compressor is reduced.

[0004] In view of this, the utility model provides a screw air compressor housing including a housing, and also including: a male rotor groove, the yin-yang rotor groove including a first yin-yang rotor groove and a second yin-yang rotor groove; an oil guide channel, the oil guide channel is arranged on the inner wall of the yin-yang rotor groove; a cooling groove, the cooling groove connects the first yin-yang rotor groove and the second yin-yang rotor groove; a cooler, the cooler is arranged in the cooling groove; and an injector, the injector passes through the housing and is connected to the yin-yang rotor groove.

[0005] In the present technical scheme, the lubricating oil thrown out by the rotation of the yin and yang rotors is quickly collected and diverted in the oil guide groove on the inner wall of the yin and yang rotor groove, and the injector sprays the lubricating oil into the interior of the shell, and temperature exchange is performed using the temperature of the lubricating oil itself and the temperature of the surface of the yin and yang rotors. The air enters the first air inlet from the main air inlet, and enters the first yin and yang rotor groove along the first air inlet. The yin and yang rotors in the first yin and yang rotor groove perform the first stage compression on the air, and the oil-gas mixture produced by the compression enters the cooling groove through the first air outlet. The cooler cools the oil-gas mixture in the cooling groove, and the oil-gas mixture enters the second yin and yang rotor groove along the second air inlet. The yin and yang rotors in the second yin and yang rotor groove perform the second stage compression on the oil-gas mixture, and the compressed oil-gas mixture enters the main air outlet along the second air outlet.

[0006] In the above technical solution, further, the oil guide channel includes: a first oil guide groove, which is spirally arranged on the inner wall of the first yin and yang rotor groove; and a second oil guide groove, which is spirally arranged on the inner wall of the second yin and yang rotor groove.

[0007] In the technical solution, the spiral shapes of the first oil guide groove and the second oil guide groove fit the outer contours of the yin and yang rotors, which is beneficial for collecting and guiding the lubricating oil.

[0008] In the above technical solution, further, the cooler includes a first delivery pipe, one end of which is connected to the fluid changer, and the other end passes through the cooling tank to be connected to the condenser, the condenser is spirally shaped, and the side of the condenser away from the first delivery pipe is connected to the second delivery pipe, and the other end of the second delivery pipe passes through the shell to be connected to the fluid changer.

[0009] In this technical solution, the cooling medium is fed into the first delivery pipe through the fluid changer output port, flows along the condenser tube, and then flows into the fluid changer along the second delivery pipe. The cooling medium and the oil-gas mixture in the cooling tank exchange temperatures to cool the oil-gas mixture. The fluid changer cools the cooling medium so that the cooling medium can be reused. The fluid changer is well known in the prior art and will not be described in detail.

[0010] In the above technical solution, further, the injector includes a first shell, fixing holes are arranged on both sides of the first shell, the first shell is provided with an oil delivery port and an air delivery port, the first shell is connected to a fuel injector, and an oil delivery unit and an output unit are arranged inside the first shell of the fuel injector.

[0011] In the above technical solution, further, the oil delivery unit includes an oil storage chamber, the oil storage chamber is arranged at the fuel injection nozzle, the oil storage chamber is connected to the oil passage, and the oil passage is connected to the oil delivery port at one end away from the oil storage chamber.

[0012] In the above technical solution, further, the output unit includes a first slide groove, one end of the first slide groove is connected to the oil storage cavity, and the other end is connected to the first cavity, the first cavity is arranged inside the first shell, the first cavity is connected to an air path channel, and the air path channel is connected to the air output port at one end away from the first cavity, the first slide groove is slidably provided with a first output rod, and the first output rod is connected to a first spring in the first cavity.

[0013] In this technical solution, the lubricating oil enters from the oil delivery port and reaches the oil storage chamber along the oil path. Gas is input from the gas delivery port, and the gas reaches the first cavity along the gas path. The gas acts on the output rod, and the output rod squeezes the first spring to stop outputting gas. The first spring releases the elastic force on the output rod, and the output rod impacts the lubricating oil in the oil storage chamber, so that the lubricating oil is ejected from the oil storage chamber into the housing. The lubricating oil is ejected from the injector onto the yin and yang rotors, which not only quickly forms an oil film on the surface of the yin and yang rotors, but also the sprayed lubricating oil and the surface of the yin and yang rotors exchange temperature.

[0014] In the above technical solution, further, it also includes a voltage regulating unit, and the voltage regulating unit includes a first voltage regulating rod, one end of the first voltage regulating rod is connected to the first spring, and the other end passes through the first housing and is threadedly connected to the first nut.

[0015] In this technical solution, the compression state of the first spring is adjusted by rotating the first pressure regulating rod, so that the elastic force released by the first spring on the first output rod varies. The adjustment unit is added to control the diffusion area of ​​the lubricating oil sprayed into the housing by the injector.

[0016] The beneficial effects of the utility model are:

[0017] 1. By setting up the oil guide groove, the injector and the cooler, the oil guide groove quickly collects and guides the lubricating oil thrown out by the rotation of the yin and yang rotors, the injector sprays the lubricating oil into the shell, and the cooler cools the oil-gas mixture.

[0018] 2. By setting up a cooler, the cooling medium in the liquid exchange device outside the shell is introduced to exchange the temperature of the oil-gas mixture inside the shell, so as to achieve the effect of cooling the oil-gas mixture, reduce the temperature inside the shell and reduce the wear of the screw air compressor.

[0019] 3. Through the regulating unit, the regulating unit enables the injector to control the diffusion area of ​​the lubricating oil sprayed into the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 3 It is a schematic cross-sectional view of the front part of the housing of the utility model;

[0023] Figure 4 It is a schematic cross-sectional view of the rear part of the housing of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the cooler of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the fuel injector of the utility model.

[0026] Figure 7 yes Figure 6 Half section view.

[0027] The symbols in the figure are:

[0028] 1. Shell; 2. Main air inlet; 3. Main air outlet; 4. Injector; 5. Cooler; 6. First oil guide channel; 7. First yin-yang rotor slot; 8. Second oil guide channel; 9. Second yin-yang rotor slot; 10. Cooling slot; 11. First air inlet; 12. First air outlet; 13. Second air inlet; 14. Second air outlet; 401. First shell; 402. Second shell; 403. Injector nozzle; 404. Oil delivery port; 405. Air delivery port; 406. Oil passage; 407. Air passage; 408. First spring; 409. First cavity; 410. First output rod; 411. First slide slot; 412. First pressure regulating rod; 413. First nut; 414. Oil storage chamber; 501. First delivery pipe; 502. Second delivery pipe; 503. Condenser. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0033] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0034] Embodiment 1:

[0035] This embodiment provides a purpose of the utility model to solve the above-mentioned technical problems, and to provide a screw air compressor housing 1, in which the oil-gas mixture is cooled in the housing 1 during the air compression process. Figure 2The male rotor slot, the yin-yang rotor slot includes a first yin-yang rotor slot 7 and a second yin-yang rotor slot 9; an oil guide channel, the oil guide channel is arranged on the inner wall of the yin-yang rotor slot; a cooling groove 10, the cooling groove 10 connects the first yin-yang rotor slot 7 and the second yin-yang rotor slot 9; a cooler 5, the cooler 5 is arranged in the cooling groove 10; an injector 4, the injector 4 passes through the shell 1 and is connected to the yin-yang rotor slot. The oil guide groove on the inner wall of the yin-yang rotor groove quickly collects the lubricating oil thrown out by the rotation of the yin-yang rotor and guides it. The injector 4 sprays the lubricating oil into the shell 1, and uses the temperature of the lubricating oil itself and the temperature of the surface of the yin-yang rotor to exchange temperature. The air enters the first air inlet 11 from the main air inlet 2, and enters the first yin-yang rotor groove 7 along the first air inlet 11. The yin-yang rotor in the first yin-yang rotor groove 7 performs the first stage compression on the air. The compressed oil-gas mixture enters the cooling groove 10 through the first air outlet 12. The cooler 5 cools the oil-gas mixture in the cooling groove 10. The oil-gas mixture enters the second yin-yang rotor groove 9 along the second air inlet. The yin-yang rotor in the second yin-yang rotor groove 9 performs the second stage compression on the oil-gas mixture. The compressed oil-gas mixture enters the main air outlet 3 along the second air outlet 14. The oil guide channel includes: a first oil guide groove, which is spirally arranged on the inner wall of the first yin-yang rotor groove 7; a second oil guide groove, which is spirally arranged on the inner wall of the second yin-yang rotor groove 9. The spiral shapes of the first oil guide groove and the second oil guide groove fit the outer contours of the yin and yang rotors, which is beneficial for collecting and guiding the lubricating oil.

[0036] like Figure 5 The cooler 5 shown includes a first delivery pipe 501, one end of which is connected to the fluid changer, and the other end of which penetrates into the cooling tank 10 and is connected to the condenser 503. The condenser 503 is spirally shaped, and the side of the condenser 503 away from the first delivery pipe 501 is connected to the second delivery pipe 502, and the other end of the second delivery pipe penetrates out of the shell 1 and is connected to the fluid changer. The cooling medium is delivered into the first delivery pipe 501 through the fluid changer output port, flows along the condenser 503, and then flows into the fluid changer along the second delivery pipe 502. The cooling medium and the oil-gas mixture in the cooling tank 10 exchange temperatures to cool the oil-gas mixture. The fluid changer cools the cooling medium so that the cooling medium can be reused repeatedly. The fluid changer is well known in the prior art and will not be described in detail.

[0037] like Figure 6 The injector 4 shown includes a first shell 401, fixing holes are set on both sides of the first shell 401, the first shell 401 is provided with an oil delivery port 404 and an air delivery port 405, the first shell 401 is connected to a fuel injection nozzle 403, and the fuel injection nozzle 403 is provided with an oil delivery unit and an output unit inside the first shell 401.

[0038] like Figure 7The oil delivery unit shown in the figure includes an oil storage chamber 414, which is arranged at the oil injection nozzle 403, and the oil storage chamber 414 is connected to the oil passage 406, and the oil passage 406 is connected to the oil delivery port 404 at one end away from the oil storage chamber 414. The output unit includes a first slide 411, one end of the first slide 411 is connected to the oil storage chamber 414, and the other end is connected to the first cavity 409, and the first cavity 409 is arranged inside the first housing 401, and the first cavity 409 is connected to the gas passage 407, and the end of the gas passage 407 away from the first cavity 409 is connected to the gas delivery port 405, and the first slide 411 is slidably provided with a first output rod 410, and the first output rod 410 is connected to the first spring 408 in the first cavity 409. Lubricating oil enters from the oil delivery port 404 and reaches the oil storage chamber 414 along the oil passage 406. Gas is input from the gas delivery port 405, and the gas reaches the first cavity 409 along the gas path 407. The gas acts on the output rod, and the output rod squeezes the first spring 408 to stop outputting gas. The first spring 408 releases the elastic force on the output rod, and the output rod impacts the lubricating oil in the oil storage chamber 414, so that the lubricating oil is sprayed from the oil storage chamber 414 into the housing 1. The lubricating oil is sprayed from the oil injector 4 onto the yin and yang rotors, which not only quickly forms an oil film on the surface of the yin and yang rotors, but also the sprayed lubricating oil exchanges temperature with the surface of the yin and yang rotors.

[0039] Embodiment 2:

[0040] This embodiment provides a screw air compressor housing, which, in addition to the technical solutions of the above embodiments, also has the following technical features. Figure 7 The pressure regulating unit shown in the figure includes a first pressure regulating rod 412, one end of which is connected to the first spring 408, and the other end of which passes through the first housing 401 and is threadedly connected to the first nut 413. The compression state of the first spring 408 is adjusted by rotating the first pressure regulating rod 412, so that the elastic force released by the first spring 408 on the first output rod 410 varies. The addition of the regulating unit allows the injector 4 to control the diffusion area of ​​the lubricating oil sprayed into the housing 1.

[0041] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A screw air compressor housing, characterized in that , comprising a housing (1), and further comprising: Yin-yang rotor slots, the yin-yang rotor slots comprising a first yin-yang rotor slot (7) and a second yin-yang rotor slot (9); An oil guide channel, the oil guide channel being arranged on the inner wall of the male and female rotor grooves; A cooling groove (10), wherein the cooling groove (10) is connected to the first yin-yang rotor groove (7) and the second yin-yang rotor groove (9); A cooler (5), wherein the cooler (5) is arranged in the cooling tank (10); A fuel injector (4) is provided, wherein the fuel injector (4) passes through the housing (1) and is connected to the grooves of the male and female rotors.

2. A screw air compressor housing according to claim 1, characterized in that: The oil guide channel comprises: A first oil guide groove, the first oil guide groove being spirally arranged on the inner wall of the first yin-yang rotor groove (7); A second oil guide groove, wherein the second oil guide groove is spirally arranged on the inner wall of the second yin-yang rotor groove (9).

3. A screw air compressor housing according to claim 1, characterized in that: The cooler (5) comprises a first delivery pipe (501), one end of the first delivery pipe (501) is connected to an external fluid changer, and the other end passes through a cooling tank (10) to be connected to a condenser (503), the condenser (503) is spirally shaped, and one end of the condenser (503) away from the first delivery pipe (501) is connected to a second delivery pipe (502), and the other end of the second delivery pipe passes through the shell (1) to be connected to the fluid changer.

4. A screw air compressor housing according to claim 1, characterized in that: The fuel injector (4) comprises a first shell (401), fixing holes are arranged on both sides of the first shell (401), the first shell (401) is provided with an oil delivery port (404) and an air delivery port (405), the first shell (401) is connected to a fuel injection nozzle (403), and a fuel delivery unit and an output unit are arranged inside the first shell (401) of the fuel injection nozzle (403).

5. A screw air compressor housing according to claim 4, characterized in that: The oil delivery unit comprises an oil storage chamber (414), the oil storage chamber (414) is arranged on the oil injection nozzle (403), the oil storage chamber (414) is connected to the oil passage (406), and the end of the oil passage (406) away from the oil storage chamber (414) is connected to the oil delivery port (404).

6. A screw air compressor housing according to claim 4, characterized in that: The output unit comprises a first slide groove (411), one end of the first slide groove (411) is connected to the oil storage cavity (414), and the other end is connected to the first cavity (409), the first cavity (409) is arranged inside the first shell (401), the first cavity (409) is connected to an air path (407), and the end of the air path (407) away from the first cavity (409) is connected to the air delivery port (405), a first output rod (410) is slidably arranged in the first slide groove (411), and the first output rod (410) is connected to a first spring (408) in the first cavity (409).

7. A screw air compressor housing according to claim 6, characterized in that: It also includes a pressure regulating unit, which includes a first pressure regulating rod (412), one end of which is connected to the first spring (408), and the other end of which passes through the first housing (401) and is threadedly connected to the first nut (413).

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