Novel inner exhaust pipe assembly and compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a novel inner exhaust pipe assembly and a compressor. The compressor comprises a compressor body, the compressor body comprises a pump body and an air outlet pipe, and the novel inner exhaust pipe assembly is arranged between the pump body and the air outlet pipe. The novel inner exhaust pipe assembly comprises a metal cover plate; the first connecting pipe is connected with the metal cover plate; the second connecting pipe is used for being connected with an air outlet pipe; the single-spiral elastic pipe is connected with the first connecting pipe and the second connecting pipe, and the single-spiral elastic pipe comprises a plurality of circular rings which are connected end to end; the first connecting pipe, the second connecting pipe and the single-spiral elastic pipe are made of Bundy pipes and are of an integrally-formed structure so that high-pressure gas generated in the compressor can be exhausted. The inner exhaust pipe effectively solves the technical problems that in the prior art, the inner exhaust pipe is high in manufacturing cost due to the complex structural form, and the installation efficiency is low due to the cumbersome installation process.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a novel inner exhaust pipe assembly and a compressor. Background Art

[0002] A compressor is an industrial equipment that boosts low-pressure gas to high-pressure gas, thereby achieving gas compression and storage. During use, it will produce obvious vibrations, causing pipeline connections to loosen or even fall off. Therefore, the exhaust pipe is often set to be U-shaped. This U-shaped exhaust pipe will also cause the exhaust pipe to be staggered or even entangled due to the vibration of the compressor during use, thereby affecting the stability and smoothness of gas transmission.

[0003] In response to the above problems, the utility model patent document with authorization announcement number CN213899239U discloses an internal exhaust pipe of a compressor, wherein a support ring is fixedly connected on the outer side of the exhaust pipe, a connecting rod is radially fixedly installed on the support ring, a placement sleeve is installed on the connecting rod, a circular movable block is slidably arranged in the placement sleeve, a plurality of metal spring pieces are arranged between the circular movable block and the inner wall of the placement sleeve, a latch is arranged on the side of the placement sleeve facing away from the pipe wall, and the placement sleeve is fixedly connected to the compressor casing by the latch, so that the vibration of the pipe body can be buffered by the cooperation between the placement sleeve and the metal spring piece and the circular movable block, and a fast and stable connection between the placement sleeve and the compressor is guaranteed by the latch, so as to maintain the relative position of the pipe body and the compressor casing, avoid dislocation or even entanglement, and ensure the stability and smoothness of the pipe body transportation.

[0004] However, the structure of the exhaust pipe inside the above-mentioned compressor is relatively complicated, and it is necessary to install a fixing ring, a connecting rod, a mounting sleeve, a metal spring, a circular movable block and other structures on the pipe body, resulting in a high manufacturing cost; in addition, it is also necessary to preset a through hole on the compressor casing and install a pin in the through hole to fix the mounting sleeve on the compressor casing. The installation process is relatively cumbersome and requires a lot of manpower, resulting in a decrease in the installation efficiency of the exhaust pipe. Utility Model Content

[0005] The utility model provides a novel inner exhaust pipe assembly to solve the technical problems in the prior art that the inner exhaust pipe has a complex structure which results in high manufacturing cost and a cumbersome installation process which results in low installation efficiency.

[0006] In order to solve the above problems, the new inner exhaust pipe assembly provided by the utility model adopts the following technical solutions:

[0007] A novel inner exhaust pipe assembly comprises:

[0008] A metal cover plate, which is used to be mounted on the pump body of the compressor;

[0009] A first connecting pipe connected to the metal cover plate;

[0010] A second connecting pipe, which is used to be connected to the air outlet pipe of the compressor;

[0011] A single-helix elastic tube connected to the first connecting tube and the second connecting tube, the single-helix elastic tube comprising a plurality of circular rings connected end to end, for increasing exhaust resistance and reducing exhaust pulsation, thereby reducing noise and vibration of the compressor;

[0012] The first connecting pipe, the second connecting pipe and the single spiral elastic pipe are made of Bondi pipe and are an integrally formed structure to discharge the high-pressure gas generated in the compressor.

[0013] The beneficial effects of the novel inner exhaust pipe assembly provided by the utility model are as follows: 1) by providing an inner exhaust pipe including a single spiral elastic tube, the single spiral elastic tube includes a plurality of circular rings connected end to end, so that the number of bending times of the inner exhaust pipe can be increased as much as possible within a limited space, and the walking path of the high-pressure gas when it is discharged can be increased, thereby increasing its exhaust resistance and reducing exhaust pulsation, so as to achieve the purpose of reducing the noise of the compressor; 2) the single spiral elastic tube includes a plurality of circular rings connected end to end, and the structural form characteristics of the circular ring make it less likely to have stress concentration during the transportation of the compressor, thereby ensuring that it will not break due to stress concentration during the transportation of the compressor, thereby improving the long-distance transportation reliability; 3) the single spiral elastic tube can absorb the vibration generated by the compressor pump body during operation, thereby weakening the vibration intensity transmitted to the compressor casing and reducing the vibration acceleration of the compressor; 4) the first connecting tube, the second connecting tube and the single spiral elastic tube are made of Bundy tube, which has excellent resistance to vibration cracking and high pressure resistance, can ensure the stable discharge of high-pressure gas, and has a long service life. The inner exhaust pipe is an integrated molding structure, which reduces the connection between pipes and reduces its processing difficulty. It is convenient and quick to install, ensuring its installation efficiency, and avoiding the situation where the inner exhaust pipe is damaged due to poor connection performance at the pipe connection, affecting the discharge of high-pressure gas.

[0014] In summary, the utility model improves and upgrades the existing internal exhaust pipe, and effectively solves the technical problems in the prior art that the internal exhaust pipe has a complex structure resulting in high manufacturing cost, and a cumbersome installation process resulting in low installation efficiency.

[0015] Furthermore, two adjacent circular rings are closely arranged to form a closely wound spring structure.

[0016] Beneficial effect: The two adjacent circular rings of the single-helix elastic tube are arranged closely to form a closely wound spring structure, so that the single-helix elastic tube can ensure the exhaust function while also playing the role of a closely wound spring, effectively reducing the vibration intensity transmitted to the casing during operation of the compressor, and ensuring a good user experience for end customers.

[0017] Furthermore, the metal cover plate is provided with bolt holes, the pump body is provided with bolt holes corresponding thereto, and the metal cover plate and the pump body are connected via bolts penetrating the bolt holes.

[0018] Furthermore, radial dimensions of the plurality of circular rings between the first connecting pipe and the second connecting pipe are the same.

[0019] Furthermore, radial dimensions of the plurality of circular rings between the first connecting pipe and the second connecting pipe increase gradually.

[0020] Furthermore, radial dimensions of the plurality of circular rings decrease gradually between the first connecting pipe and the second connecting pipe.

[0021] Furthermore, radial dimensions of the plurality of rings between the first connecting tube and the second connecting tube first increase and then decrease.

[0022] Furthermore, radial dimensions of the plurality of rings between the first connecting tube and the second connecting tube first decrease and then increase.

[0023] In order to solve the above problems, the compressor provided by the utility model adopts the following technical solutions:

[0024] A compressor comprises a compressor body, the compressor body comprises a pump body and an air outlet pipe, and further comprises a novel inner exhaust pipe assembly, the novel inner exhaust pipe assembly is arranged between the pump body and the air outlet pipe;

[0025] The new internal exhaust pipe assembly includes:

[0026] A metal cover plate, which is used to be mounted on the pump body of the compressor;

[0027] A first connecting pipe connected to the metal cover plate;

[0028] A second connecting pipe, which is used to be connected to the air outlet pipe of the compressor;

[0029] A single-helix elastic tube connected to the first connecting tube and the second connecting tube, the single-helix elastic tube comprising a plurality of circular rings connected end to end, for increasing exhaust resistance and reducing exhaust pulsation, thereby reducing noise and vibration of the compressor;

[0030] The first connecting pipe, the second connecting pipe and the single spiral elastic pipe are made of Bondi pipe and are an integrally formed structure to discharge the high-pressure gas generated in the compressor.

[0031] The compressor provided by the utility model has the following beneficial effects: by arranging a novel inner exhaust pipe assembly between the exhaust cover and the exhaust pipe, the inner exhaust pipe includes a single spiral elastic pipe, and the following beneficial effects are achieved:

[0032] 1) The single spiral elastic tube includes several circular rings connected end to end, which can increase the number of bends of the inner exhaust pipe as much as possible within a limited space, increase the walking path of the high-pressure gas when it is discharged, thereby increasing its exhaust resistance and reducing exhaust pulsation, so as to achieve the purpose of reducing the noise of the compressor;

[0033] 2) The single spiral elastic tube includes several circular rings connected end to end. The circular ring form makes it less likely to cause stress concentration during the transportation of the compressor, thereby ensuring that the compressor will not break due to stress concentration during transportation, thereby improving the reliability of long-distance transportation;

[0034] 3) The single spiral elastic tube can absorb the vibration generated by the compressor pump body during operation, thereby weakening the vibration intensity transmitted to the compressor housing and reducing the vibration acceleration of the compressor;

[0035] 4) The first connecting pipe, the second connecting pipe and the single spiral elastic pipe are made of Bondi pipes. The Bondi pipes have excellent resistance to vibration rupture and high pressure resistance, can ensure the stable discharge of high-pressure gas, and have a long service life. The inner exhaust pipe is an integrated structure, which reduces the connection between pipes, is convenient and quick to install, ensures its installation efficiency, and avoids the situation where the inner exhaust pipe is damaged due to poor connection performance at the pipe connection, affecting the discharge of high-pressure gas.

[0036] In summary, the utility model completes the improvement and upgrade of the existing compressor, and effectively solves the technical problems in the prior art that the structure of the internal exhaust pipe is complex, resulting in high manufacturing cost, and the installation process is cumbersome, resulting in low installation efficiency.

[0037] Furthermore, two adjacent circular rings are closely arranged to form a closely wound spring structure.

[0038] Furthermore, the metal cover plate is provided with bolt holes, the pump body is provided with bolt holes corresponding thereto, and the metal cover plate and the pump body are connected via bolts penetrating the bolt holes.

[0039] Furthermore, radial dimensions of the plurality of circular rings between the first connecting pipe and the second connecting pipe are the same.

[0040] Furthermore, radial dimensions of the plurality of circular rings between the first connecting pipe and the second connecting pipe increase gradually.

[0041] Furthermore, radial dimensions of the plurality of circular rings decrease gradually between the first connecting pipe and the second connecting pipe.

[0042] Furthermore, radial dimensions of the plurality of rings between the first connecting tube and the second connecting tube first increase and then decrease.

[0043] Furthermore, radial dimensions of the plurality of rings between the first connecting tube and the second connecting tube first decrease and then increase.

[0044] Furthermore, the second connecting pipe is connected to the air outlet pipe by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0046] Figure 1 A schematic diagram of the structure of the inner exhaust pipe provided by the utility model;

[0047] Figure 2 This is a schematic diagram of the structure of the compressor provided by the utility model.

[0048] Description of reference numerals:

[0049] 1. First connecting pipe; 2. Metal cover plate; 3. Second connecting pipe; 4. Air outlet pipe; 5. Single spiral elastic tube; 6. Pump body; 7. Bolts. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0051] It should be noted that the main idea of ​​the utility model is: by arranging an inner exhaust pipe including a single spiral elastic tube between the exhaust cover and the exhaust pipe, the number of bending times of the single spiral elastic tube can be increased within a limited space, thereby increasing the walking path of the high-pressure gas during discharge, thereby increasing the exhaust resistance and reducing the exhaust pulsation to reduce the noise of the compressor; the single spiral elastic tube can absorb the vibration generated by the compressor pump body during operation, so that the vibration intensity from the source to the compressor casing is weakened, thereby reducing the vibration acceleration of the compressor; by setting the inner exhaust pipe as a structure integrally formed by a Bondi tube, the processing difficulty is low, the installation is convenient and quick, and its installation efficiency is guaranteed.

[0052] After introducing the basic principle of the utility model, various non-limiting embodiments of the utility model are specifically introduced below. Any number of elements in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0053] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0054] The internal exhaust pipe is a pipe structure that transports the high-temperature and high-pressure gas generated by the piston inside the compressor to the exhaust end. It will cause noise and vibration of the compressor during the process of transporting the high-temperature and high-pressure gas.

[0055] At present, the following two measures are mainly adopted to reduce the noise and vibration of the compressor: one is to increase the length of the inner exhaust pipe and perform arc bending on it multiple times to avoid stress concentration fracture, increase exhaust resistance, thereby reducing exhaust pulsation and achieving the purpose of reducing noise; the other is to fix one end of the inner exhaust pipe to the exhaust chamber of the crankcase with bolts, and fix the other end to the exhaust pipe on the lower shell by welding, and install a tightly wound spring on the inner exhaust pipe. This rigid connection will transmit the vibration generated by the operation of the pump body to the lower shell, and the tightly wound spring can weaken the vibration transmitted to the lower shell.

[0056] However, with the development trend of miniaturization of compressors, the above structure has gradually shown the following problems: 1. The gap between the internal pump body and the upper and lower shells of the compressor becomes smaller, and the space for arranging the inner exhaust pipe also becomes smaller, resulting in the number of bending times and bending angles of the pipe being limited, making it difficult to reduce exhaust pulsation and not conducive to noise reduction. At the same time, if the Bondi tube is bent multiple times to form sharp angles, it will also cause it to break due to stress concentration during the transportation of the compressor, thereby causing the compressor to be scrapped; 2. After the compressor is miniaturized, its weight becomes lighter, and the vibration transmitted to the shell through the inner exhaust pipe will become larger and difficult to weaken, resulting in greater vibration of the entire box of the small compressor, affecting the user experience of the end customer; 3. The miniaturization of the compressor leads to a smaller gap between the internal pump body and the upper and lower shells, and the difficulty of shaping the inner exhaust pipe when it is assembled on the compressor increases, affecting the production efficiency of the compressor and reducing the reliability of the product.

[0057] Embodiment 1 of the novel inner exhaust pipe assembly provided by the utility model:

[0058] like Figure 1 and Figure 2 As shown, the novel inner exhaust pipe assembly includes a metal cover plate 2 and an inner exhaust pipe, and the inner exhaust pipe includes a first connecting pipe 1, a second connecting pipe 3 and a single spiral elastic tube 5 connecting the first connecting pipe 1 and the second connecting pipe 3. The first connecting pipe 1, the second connecting pipe 3 and the single spiral elastic tube 5 are made of Bondi tubes and are an integrally formed structure to discharge the high-pressure gas generated in the compressor.

[0059] The first connecting pipe 1 is connected to the metal cover plate 2, the metal cover plate 2 is used to be connected to the pump body 6 of the compressor, and the second connecting pipe 3 is used to be connected to the air outlet pipe 4 of the compressor.

[0060] Specifically, the first connecting pipe 1 is welded to the metal cover plate 2, a bolt hole is opened on the metal cover plate 2, a corresponding bolt hole is opened on the pump body 6, the metal cover plate 2 and the pump body 6 are connected by bolts 7 passing through the bolt holes, and the second connecting pipe 3 is welded to the outlet pipe 4.

[0061] About the single helical elastic tube 5. The single helical elastic tube 5 includes a plurality of circular rings connected end to end, and two adjacent circular rings are closely arranged to form a closely wound spring structure, thereby increasing exhaust resistance, reducing exhaust pulsation, and reducing noise and vibration of the compressor.

[0062] It should be noted that the number of circular rings included in the single-helical elastic tube 5 depends on the internal space of the compressor, and the number of circular rings can be increased as much as possible under the condition that the internal space of the compressor allows.

[0063] The working principle of the new internal exhaust pipe assembly provided by the utility model is: when the compressor completes the gas compression process, the compressed high-pressure gas first passes through the first connecting pipe 1 connected to the metal cover plate 2, and then is transported into the single-helix elastic tube 5, and finally is discharged from the compressor body through the second connecting pipe 3 and the outlet pipe 4. In the process of flowing through the single-helix elastic tube 5, the several rings in the single-helix elastic tube 5 extend the delivery path of the high-pressure gas while transporting the high-pressure gas, increase its exhaust resistance, reduce exhaust pulsation, and thus reduce the noise and vibration of the compressor.

[0064] Embodiment 2 of the novel inner exhaust pipe assembly provided by the utility model:

[0065] The main difference between it and Example 1 is:

[0066] In Example 1, the radial dimensions of the plurality of rings between the first connecting pipe and the second connecting pipe are the same.

[0067] In this embodiment, radial dimensions of the plurality of rings between the first connecting pipe and the second connecting pipe gradually increase or decrease or first increase and then decrease or first decrease and then increase to adapt to the internal space of the compressor.

[0068] The embodiment of the compressor provided by the utility model:

[0069] like Figure 2 As shown, the compressor includes a compressor body, the compressor body includes a pump body and an air outlet pipe, and a new type of inner exhaust pipe assembly is installed between the pump body and the air outlet pipe.

[0070] The new inner exhaust pipe assembly in the compressor has the same structural form as the above-mentioned new inner exhaust pipe assembly, which will not be described in detail here.

[0071] The metal cover plate 2 in the novel internal exhaust pipe assembly is provided with bolt holes, and the pump body 6 is provided with corresponding bolt holes. The metal cover plate 2 and the pump body 6 are connected by bolts 7 penetrating the bolt holes, and the second connecting pipe 3 is welded to the exhaust pipe 4.

[0072] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "inner" and other terms indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0073] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A novel inner exhaust pipe assembly, characterized in that: include: A metal cover plate, which is used to be mounted on the pump body of the compressor; A first connecting pipe connected to the metal cover plate; A second connecting pipe, which is used to be connected to the air outlet pipe of the compressor; A single-helix elastic tube connected to the first connecting tube and the second connecting tube, the single-helix elastic tube comprising a plurality of circular rings connected end to end, for increasing exhaust resistance and reducing exhaust pulsation, thereby reducing noise and vibration of the compressor; The first connecting pipe, the second connecting pipe and the single spiral elastic pipe are made of Bondi pipe and are an integrally formed structure to discharge the high-pressure gas generated in the compressor.

2. The novel inner exhaust pipe assembly according to claim 1 is characterized in that: Two adjacent circular rings are closely arranged to form a closely wound spring structure.

3. The novel inner exhaust pipe assembly according to claim 2 is characterized in that: The metal cover plate is provided with bolt holes, and the pump body is provided with bolt holes corresponding thereto. The metal cover plate and the pump body are connected with each other via bolts penetrating the bolt holes.

4. The novel inner exhaust pipe assembly according to any one of claims 1 to 3, characterized in that: The radial dimensions of the plurality of circular rings between the first connecting pipe and the second connecting pipe are the same.

5. The novel inner exhaust pipe assembly according to any one of claims 1 to 3, characterized in that: The radial dimensions of the plurality of rings increase gradually between the first connecting tube and the second connecting tube.

6. The novel inner exhaust pipe assembly according to any one of claims 1 to 3, characterized in that: The radial dimensions of the plurality of circular rings decrease gradually between the first connecting tube and the second connecting tube.

7. The novel inner exhaust pipe assembly according to any one of claims 1 to 3, characterized in that: The radial dimensions of the plurality of rings between the first connecting tube and the second connecting tube first increase and then decrease.

8. The novel inner exhaust pipe assembly according to any one of claims 1 to 3, characterized in that: The radial dimensions of the plurality of rings between the first connecting pipe and the second connecting pipe first decrease and then increase.

9. A compressor, comprising a compressor body, the compressor body comprising a pump body and an air outlet pipe, characterized in that: It also includes the novel inner exhaust pipe assembly as described in any one of claims 1 to 8, wherein the novel inner exhaust pipe assembly is arranged between the pump body and the exhaust pipe.

10. The compressor according to claim 9, characterized in that The second connecting pipe is connected to the air outlet pipe by welding.

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