CN215521258U

CN215521258U - Roots blower sound-proof housing

Info

Publication number: CN215521258U
Application number: CN202120538582.4U
Authority: CN
Inventors: 胡文华
Original assignee: Zhangqiu Huaxing Machinery Manufacturing Co ltd
Current assignee: Zhangqiu Huaxing Machinery Manufacturing Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-01-14
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to a Roots blower sound-proof housing, which comprises a housing body, wherein the housing body can accommodate a Roots blower, the bottom of the housing body is connected to a base of the Roots blower, the bottom of the housing body is provided with an opening, the front side of the housing body is provided with an air outlet pipe orifice, and the top surface of the housing body is provided with an air inlet pipe orifice and a hanging ring orifice; the inner surface of the cover body is connected with silencing cotton; the top of the cover body is connected with a heat dissipation fan and a temperature sensor, and the cover body further comprises a single chip microcomputer, and the single chip microcomputer is electrically connected with the heat dissipation fan and the temperature sensor. This sound-proof housing not only can reduce the noise that the roots's fan produced when operation, but also can guarantee better ventilation cooling, and then improve the life of fan.

Description

Roots blower sound-proof housing

Technical Field

The utility model relates to the technical field of auxiliary devices of Roots blowers, in particular to a sound-proof housing of a Roots blower.

Background

The Roots blower is a positive displacement blower and is a rotary compressor with two vane-shaped rotors rotating relatively in casing to compress and convey gas. The blower has simple structure and convenient manufacture, is widely applied to aquaculture oxygenation, sewage treatment aeration and cement conveying, is more suitable for a gas conveying and pressurizing system in a low-pressure occasion, and can also be used as a vacuum pump and the like.

The sound-proof cover of Roots blower is a noise-reducing device for eliminating the main noise of dynamic noise (airflow noise) and eddy noise of air generated by Roots blower. The aerodynamic noise comprises transmission gear noise, motor noise and pressure regulating valve noise, and the aerodynamic noise has the highest intensity and the largest influence; the vortex noise includes periodic exhaust noise generated by pressure pulsation caused by periodic outward exhaust of air when the fan wheel rotates, and noise caused when a vortex of gas is split at the fan wheel interface. The sound-proof housing among the prior art is comparatively sealed, can completely cut off most noise, but this kind of structure can lead to the heat dissipation bad, influences the life of fan.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model provides the sound-proof housing of the Roots blower, which not only can reduce the noise generated during the operation of the Roots blower, but also can ensure better ventilation and heat dissipation, thereby prolonging the service life of the Roots blower.

The utility model is realized by the following technical scheme:

a Roots blower sound-proof housing comprises a housing body which can accommodate a Roots blower and the bottom of which is connected to a base of the Roots blower, wherein the bottom of the housing body is open, an air outlet pipe orifice is arranged at the front side of the housing body, and an air inlet pipe orifice and a hanging ring orifice are arranged at the top surface of the housing body; the inner surface of the cover body is connected with silencing cotton; the top of the cover body is connected with a heat dissipation fan and a temperature sensor, and the cover body further comprises a single chip microcomputer, and the single chip microcomputer is electrically connected with the heat dissipation fan and the temperature sensor.

Preferably, the cover body comprises a left cover body and a right cover body, and the left cover body is connected with the right cover body through a buckle.

Preferably, the air inlet pipe orifice, the lifting ring orifice and the air outlet pipe orifice are connected with sealing rubber sheets.

Preferably, the side surfaces of the left cover body and the right cover body are both connected with maintenance doors.

Preferably, the bottom of the cover body is connected with the base through a fastening bolt, and a damping spring is sleeved on the fastening bolt.

The utility model has the beneficial effects that:

1. the cover body internal surface is connected with the amortization cotton, and the cover body top is connected with heat dissipation fan and temperature sensor, still includes the singlechip, and the singlechip is connected with heat dissipation fan, temperature sensor electricity. Noise that the reduction roots's fan that the amortization is cotton can be great produced when operation, and when the internal temperature of cover exceeded threshold value scope upper limit, temperature sensor sensed and given the singlechip with signal transmission, and single chip microcomputer control heat dissipation fan is opened until the temperature falls to threshold value scope lower limit, avoids the motor work influence life under the high temperature.

2. The cover body includes the left cover body and the right cover body, and the left cover body and the right cover body pass through the eye-splice and connect, and is more convenient when the sound-proof housing installation with dismantle, only need with the left cover body with the right cover body connect or separate can.

3. The air inlet pipe opening, the lifting ring opening and the air outlet pipe opening are all connected with sealing rubber sheets, the sealing rubber sheets can compensate gaps between the air inlet pipe opening and an air inlet, between the air outlet pipe opening and an air outlet, and between the lifting ring opening and a fan lifting ring, sealing performance is improved, and the sound insulation effect is better.

4. The left cover body and the right cover body are connected with maintenance doors on the side faces, and the blower is conveniently checked without disassembling the sound-proof cover.

5. The bottom of the cover body is connected with the base through a fastening bolt, and a damping spring is sleeved on the fastening bolt. The sound-proof housing passes through damping spring elastic connection on the fan base, can offset the noise and the vibration that the operation of heat dissipation fan produced, further reduces the noise value.

Drawings

The utility model will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of the present invention.

FIG. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic perspective view of the first embodiment of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a first schematic view of the mounting structure of the present invention.

Fig. 6 is a second schematic view of the mounting structure of the present invention.

In the figure, 1-cover body, 11-left cover body, 12-right cover body, 13-eye-splice, 14-maintenance door, 2-air outlet pipe orifice, 3-air inlet pipe orifice, 4-heat dissipation fan, 5-suspension loop orifice, 6-temperature sensor, 7-fastening bolt, 71-damping spring, 8-Roots blower, 81-machine head, 82-motor, 83-air inlet, 84-air outlet and 85-base.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 6, the sound-proof housing for the roots blower of the utility model comprises a housing body 1 which can accommodate the roots blower 8 and is connected with a base 85 of the roots blower 8 at the bottom, wherein the housing body 1 is formed by bending a stainless steel plate through a metal plate, as shown in fig. 3. The bottom of the cover body 1 is opened for air outlet. The Roots blower 8 comprises a motor 82, a machine head 81 and a base 85, an air outlet 2 corresponding to an air outlet 84 is arranged on the front side of the cover body 1, an air inlet 3 corresponding to an air inlet 83 and a hanging ring 5 corresponding to a blower hanging ring are arranged on the top surface of the cover body 1, the air outlet 84, the air inlet 83 and the hanging ring are respectively used for allowing the Roots blower 8 to extend out, and silencing pipes are generally connected to the air outlet 84 and the air inlet 83 for silencing.

The internal surface of the cover body 1 is connected with the amortization cotton, and the noise that produces when the reduction roots's fan that the amortization cotton can be great operates, what the amortization cotton adopted is the porous acoustic material of fibre, and the sound insulation mechanism is that there is the hole of a large amount of small intercommunications in the material inside, and inside the sound wave can be deepened the material along these holes, takes place the friction with the material and turns into heat energy with sound energy conversion.

The top of the cover body 1 is connected with a heat dissipation fan 4 and a temperature sensor 6, and the heat dissipation fan comprises a single chip microcomputer, wherein the single chip microcomputer is in AT89s51 type, and is electrically connected with the heat dissipation fan 4 and the temperature sensor 6. When the temperature in the cover body 1 exceeds the upper limit of the threshold range, the temperature sensor 6 senses and transmits a signal to the single chip microcomputer, the single chip microcomputer controls the heat dissipation fan 4 to be opened until the temperature is reduced to the lower limit of the threshold range, and the problem that the working of the motor at high temperature affects the service life is avoided. In this example, the temperature threshold is set at 40-60 ℃.

The cover body 1 comprises a left cover body 11 and a right cover body 12, the left cover body 11 and the right cover body 12 are connected through a plug-in buckle 13, as shown in fig. 4, the installation and the disassembly of the sound insulation cover are more convenient, and only the left cover body 11 and the right cover body 12 need to be connected or separated.

All be connected with the sealing rubber piece on air inlet pipe mouth 3 and rings mouth 5 and the air outlet pipe mouth 2, the sealing rubber piece can compensate air inlet pipe mouth 3 and air inlet 83, air outlet pipe mouth 2 and gas outlet 84 and rings mouth 5 and the fan rings clearance between, improves the leakproofness for the effect that gives sound insulation is better.

The side surfaces of the left cover body 11 and the right cover body 12 are both connected with a maintenance door 14, so that the blower can be conveniently checked without disassembling the sound-proof cover. The maintenance door 14 is fixed on the left cover body 11 and the right cover body 12 through screws, and is convenient to detach.

The cover body 1 is connected between the bottom and the base 85 through the fastening bolt 7, the fastening bolt 7 is sleeved with the damping spring 71, the left cover body 11 and the right cover body 12 are fixed on the base 85 of the fan through the fastening bolt 7 respectively, the damping spring 71 enables the cover body 1 to have certain elastic amplitude in the up-down direction, noise and vibration generated by the operation of the heat dissipation fan 4 can be offset, and the noise value is further reduced.

The working process is as follows: firstly, the left cover body 11 is installed on the base 85 through the fastening bolt 7, then the upper part of the right cover body 12 is in inserted fit with the left cover body 11 through the inserting buckle 13, and the lower part of the right cover body 12 is installed on the base 85 through the fastening bolt 7; when the temperature in the cover body 1 exceeds the upper limit of the threshold range, the temperature sensor 6 senses and transmits a signal to the single chip microcomputer, the single chip microcomputer controls the heat dissipation fan 4 to be opened until the temperature is reduced to the lower limit of the threshold range, and the working influence on the service life of the motor at high temperature is avoided.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for the purpose of describing the present invention but do not require that the present invention must be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be interpreted broadly, and may be connected or disconnected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.

The above description is of the preferred embodiment of the present invention, and the description of the specific embodiment is only for better understanding of the idea of the present invention. It will be appreciated by those skilled in the art that various modifications and equivalents may be made in accordance with the principles of the utility model and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a roots's fan sound-proof housing, includes can hold roots's fan (8) and the cover body (1) of bottom connection on the base (85) of roots's fan (8), its characterized in that: the bottom of the cover body (1) is provided with an opening, the front side of the cover body (1) is provided with an air outlet pipe orifice (2), and the top surface of the cover body (1) is provided with an air inlet pipe orifice (3) and a hanging ring orifice (5); the inner surface of the cover body (1) is connected with silencing cotton; the cover body (1) top is connected with heat dissipation fan (4) and temperature sensor (6), still includes the singlechip, the singlechip is connected with heat dissipation fan (4), temperature sensor (6) electricity.

2. A roots blower acoustic enclosure according to claim 1, characterised in that: the mask body (1) comprises a left mask body (11) and a right mask body (12), wherein the left mask body (11) and the right mask body (12) are connected through a plug-in buckle (13).

3. A roots blower acoustic enclosure according to claim 2, characterised in that: and the air inlet pipe orifice (3), the lifting ring orifice (5) and the air outlet pipe orifice (2) are connected with sealing rubber sheets.

4. A roots blower acoustic enclosure according to claim 3, characterised in that: and the side surfaces of the left cover body (11) and the right cover body (12) are both connected with maintenance doors (14).

5. The roots blower sound-proof housing as claimed in claim 4, wherein: the shock-absorbing cover is characterized in that the bottom of the cover body (1) is connected with the base (85) through a fastening bolt (7), and a shock-absorbing spring (71) is sleeved on the fastening bolt (7).