Exhaust equipment

Abstract

The utility model discloses exhaust equipment which comprises a shell, an air blower, an air inlet drainage pipe and an air outlet drainage pipe, the air blower is arranged on the shell, an air inlet cavity and an air outlet cavity are formed in the shell, an air inlet is formed in the inner wall of one side of the air inlet cavity, the air inlet end of the air blower is connected with an air inlet pipe, and the end, away from the air blower, of the air inlet pipe is communicated with the air inlet cavity; an air outlet is formed in the inner wall of one side of the air outlet cavity, the air outlet end of the air blower is connected with an air outlet pipe, the end, away from the air blower, of the air outlet pipe is communicated with the air outlet cavity, one end of the air inlet drainage pipe penetrates through the bottom wall of the air inlet cavity to be communicated with the air inlet cavity, and one end of the air outlet drainage pipe penetrates through the bottom wall of the air outlet cavity to be communicated with the air outlet cavity. When the air blower stops rotating, the accumulated water can be discharged to a collection point through the air inlet drainage pipe and the corresponding hose.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation devices, in particular to an exhaust device. Background Art

[0002] In the process of manufacturing, some waste gas is inevitably generated. In order to uniformly treat this part of the waste gas, general factories will use exhaust equipment to transport the waste gas to the treatment point, and then discharge it after the waste gas is harmlessly treated.

[0003] However, a considerable portion of exhaust gas not only contains corrosive substances, but also is mixed with a large amount of water vapor. This water vapor easily adheres to the inner wall of the conveying channel inside the exhaust equipment, forming accumulated water containing corrosive substances at the lower part of the conveying channel, which continuously corrodes the conveying channel and affects the service life of the exhaust equipment. Utility Model Content

[0004] In view of this, the utility model provides an exhaust device for solving the problem in the prior art that the exhaust gas not only contains corrosive substances, but also is mixed with a large amount of water vapor. The water vapor easily adheres to the inner wall of the conveying channel inside the exhaust device, forming accumulated water containing corrosive substances at the lower part of the conveying channel, which continuously corrodes the conveying channel and affects the service life of the exhaust device.

[0005] To achieve one or part or all of the above purposes or other purposes, the utility model proposes an exhaust device, comprising a shell, a blower, an air inlet drain pipe and an air outlet drain pipe, the blower is arranged on the shell, and an air inlet chamber and an air outlet chamber are respectively provided on the shell, an air inlet is provided on an inner wall of one side of the air inlet chamber, an air inlet end of the blower is connected with the air inlet pipe, an end of the air inlet pipe away from the blower is communicated with the air inlet chamber, and a port for communicating between the air inlet pipe and the air inlet chamber is higher than a bottom wall of the air inlet chamber, an air outlet is provided on an inner wall of one side of the air outlet chamber, an air outlet end of the blower is connected with the air outlet pipe, an end of the outlet pipe away from the blower is communicated with the air outlet chamber, and a port for communicating between the air outlet pipe and the air outlet chamber is higher than the bottom wall of the air outlet chamber, the air inlet drain pipe and the air outlet drain pipe are both arranged on the shell, one end of the air inlet drain pipe passes through the bottom wall of the air inlet chamber and is connected to the air inlet chamber, and one end of the air outlet drain pipe passes through the bottom wall of the air outlet chamber and is connected to the air outlet chamber.

[0006] Preferably, the air inlet cavity and the air outlet cavity are respectively arranged at the top of the shell, and a accommodating cavity is provided at the bottom of the shell, and the blower, the air inlet drainage pipe and the air outlet drainage pipe are all arranged in the accommodating cavity.

[0007] Preferably, the air inlet and outlet pipes at one end of the accommodating chamber and the air outlet and outlet pipes at one end of the accommodating chamber are both provided with valves.

[0008] Preferably, the end of the air inlet pipe connected to the air inlet cavity is arranged on an inner wall of one side of the air inlet cavity, and the port of the air inlet pipe located on the side wall of the air inlet cavity is vertically spaced from the bottom wall of the air inlet cavity, and the end of the air outlet pipe away from the blower passes through the bottom wall of the air outlet cavity from bottom to top and partially extends into the air outlet cavity.

[0009] Preferably, two air outlets are provided, one of which is arranged on the top wall of the air outlet cavity, and the other of which is arranged on an inner wall on one side of the air outlet cavity.

[0010] Preferably, an air inlet baffle is provided on one side inner wall of the air inlet cavity along the vertical direction, and an air outlet baffle is provided on one side inner wall of the air outlet cavity along the vertical direction.

[0011] Preferably, a control cabinet is provided on one side of the housing, and the control cabinet is electrically connected to the blower.

[0012] Preferably, the volute of the blower is made of an aluminum alloy that has been treated for corrosion.

[0013] Preferably, the impeller of the blower is a three-dimensional flow impeller.

[0014] Preferably, the blower is a double-head blower, and two of the air inlet pipe and the air outlet pipe are provided. The air inlet pipe is arranged in a one-to-one correspondence with the air inlet end of the blower, and the air outlet pipe is arranged in a one-to-one correspondence with the air outlet end of the blower.

[0015] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0016] After adopting the above-mentioned exhaust equipment, when in use, the air inlet can be connected to the exhaust gas generation point through the exhaust gas collection pipe, and the air outlet can be connected to the exhaust gas treatment point through the exhaust gas discharge pipe. The air inlet drain pipe and the air outlet drain pipe can be connected to the collection point through a hose. When the blower is running, the air inlet drain pipe and the air outlet drain pipe should be sealed. The exhaust gas at the exhaust gas generation point will be drawn into the exhaust gas collection pipe by the blower, and will flow into the blower after passing through the air inlet, the air inlet cavity, and the air inlet pipe in turn, and then, driven by the blower, it will flow along the exhaust pipe, the exhaust cavity, the air outlet, and the exhaust gas discharge pipe in turn to the exhaust gas treatment point. Due to the high wind speed in the volute and the rotation speed of the impeller, the water vapor will be quickly carried away by the wind and will not accumulate in the volute. When the exhaust gas flows through the air inlet cavity, its water vapor will adhere to the inner wall of the air inlet cavity and accumulate at the bottom of the air inlet cavity under the action of gravity. When the blower stops, the accumulated water can be discharged to the collection point through the air inlet drain pipe and the corresponding hose. The air outlet cavity and the air outlet drain pipe are the same, thereby preventing the formation of accumulated water containing corrosive substances in the low part of the internal pipe of the exhaust equipment, avoiding the accumulated water from continuously corroding the conveying channel or backflowing into the blower volute, and extending the service life of the exhaust equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] in:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 The side profile of the utility model Figure 1 ;

[0021] Figure 3 The side profile of the utility model Figure 2 .

[0022] In the figure: 1. Shell; 11. Air inlet cavity; 12. Air inlet port; 13. Air outlet cavity; 14. Air outlet port; 15. Accommodation cavity; 2. Blower; 3. Air inlet drain pipe; 4. Air outlet drain pipe; 5. Air inlet pipe; 6. Air outlet pipe; 7. Air inlet baffle plate; 8. Air outlet baffle plate; 9. Control cabinet. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] like Figure 1-3 As shown, an exhaust device includes a shell 1, a blower 2, an air inlet drain pipe 3 and an air outlet drain pipe 4. The blower 2 is arranged on the shell 1, and an air inlet cavity 11 and an air outlet cavity 13 are respectively arranged on the shell 1. An air inlet port 12 is arranged on the inner wall of one side of the air inlet cavity 11. The air inlet end of the blower 2 is connected with an air inlet pipe 5. One end of the air inlet pipe 5 away from the blower 2 is connected with the air inlet cavity 11, and the port of the air inlet pipe 5 communicating with the air inlet cavity 11 is higher than the bottom wall of the air inlet cavity 11. An air outlet port 14 is arranged on the inner wall of one side of the air outlet cavity 13. The air outlet end of the blower 2 is connected with an air outlet pipe 6. The end of the air outlet pipe 6 away from the blower 2 is connected to the air outlet cavity 13, and the port where the air outlet pipe 6 is connected to the air outlet cavity 13 is higher than the bottom wall of the air outlet cavity 13 to prevent the accumulated water on the bottom wall of the air outlet cavity 13 from flowing back into the blower 2 through the air outlet pipe 6 to avoid affecting the normal operation of the blower 2. The air inlet cavity 11 and the air inlet pipe 5 are similar. The air inlet drain pipe 3 and the air outlet drain pipe 4 are both arranged on the shell 1. One end of the air inlet drain pipe 3 passes through the bottom wall of the air inlet cavity 11 and is connected to the air inlet cavity 11, and one end of the air outlet drain pipe 4 passes through the bottom wall of the air outlet cavity 13 and is connected to the air outlet cavity 13.

[0027] In this embodiment, when in use, the air inlet 12 can be connected to the exhaust gas generation point through the exhaust gas collection pipe, the air outlet 14 can be connected to the exhaust gas treatment point through the exhaust gas discharge pipe, and the air inlet drain pipe 3 and the air outlet drain pipe 4 can be connected to the collection point through a hose. When the blower 2 is running, the air inlet drain pipe 3 and the air outlet drain pipe 4 should be sealed, and the exhaust gas at the exhaust gas generation point will be drawn into the exhaust gas collection pipe by the blower 2, and will flow into the blower 2 after passing through the air inlet 12, the air inlet cavity 11, and the air inlet pipe 5 in sequence, and then, driven by the blower 2, it will flow along the exhaust pipe 6, the exhaust cavity 13, the air outlet 14, and the exhaust gas discharge pipe to the exhaust gas treatment point in sequence. From the theoretical point of view, since the wind speed in the volute and the rotation speed of the impeller are relatively high, the water vapor will be quickly carried away by the wind and will not accumulate in the volute. When the exhaust gas flows through the air inlet chamber 11, its water vapor will adhere to the inner wall of the air inlet chamber 11 and accumulate at the bottom of the air inlet chamber 11 under the action of gravity. When the blower 2 stops, the accumulated water can be discharged to the collection point through the air inlet drain pipe 3 and the corresponding hose. The air outlet chamber 13 is the same as the air outlet drain pipe 4, thereby preventing the formation of accumulated water containing corrosive substances in the low part of the internal pipe of the exhaust equipment, avoiding the accumulated water from continuously corroding the conveying channel or backflowing into the volute of the blower 2, and extending the service life of the exhaust equipment.

[0028] Furthermore, the air inlet cavity 11 and the air outlet cavity 13 are respectively arranged at the top of the shell 1, and the bottom of the shell 1 is provided with a accommodating cavity 15. The blower 2, the air inlet drain pipe 3 and the air outlet drain pipe 4 are all arranged in the accommodating cavity 15 to reduce the occupation of the exhaust equipment on the production site.

[0029] Furthermore, valves are provided at one end of the air inlet drain pipe 3 located at the accommodating chamber 15 and at one end of the air outlet drain pipe 4 located at the accommodating chamber 15 to control the connection and disconnection of the air inlet drain pipe 3 and the air outlet drain pipe 4, so as to prevent the outside air from entering the air inlet chamber 11 through the air inlet drain pipe 3 or the exhaust gas in the air outlet chamber 13 from being discharged to the outside through the air outlet drain pipe 4 when the blower 2 is running.

[0030] Furthermore, one end of the air inlet pipe 5 connected to the air inlet cavity 11 is arranged on an inner wall of one side of the air inlet cavity 11, and the port of the air inlet pipe 5 located on the side wall of the air inlet cavity 11 is spaced apart from the bottom wall of the air inlet cavity 11 in the vertical direction. The end of the air outlet pipe 6 away from the blower 2 passes through the bottom wall of the air outlet cavity 13 from bottom to top, and partially extends into the air outlet cavity 13. The extended part of the air outlet pipe 6 can play a water-blocking role to prevent the accumulated water condensed by water vapor in the air outlet cavity 13 from flowing back into the blower 2 through the air outlet pipe 6, so as to avoid affecting the normal operation of the blower 2. The same is true for the air inlet cavity 11 and the air inlet pipe 5.

[0031] Furthermore, two air outlets 14 are provided, one air outlet 14 is arranged on the top wall of the air outlet cavity 13, and the other air outlet 14 is arranged on the inner wall of one side of the air outlet cavity 13. The two air outlets 14 facing each other can take into account the connection of exhaust gas emission pipes in different directions. When in use, it is only necessary to connect the exhaust gas emission pipe to one of the opposite air outlets 14, and then use the flange cover to seal the other air outlet 14, so as to improve the applicability of the exhaust equipment.

[0032] Furthermore, an air inlet baffle 7 is provided on one side inner wall of the air inlet cavity 11 along the vertical direction, and an air outlet baffle 8 is provided on one side inner wall of the air outlet cavity 13 along the vertical direction. When the exhaust gas flows into the air inlet cavity 11 from the air inlet 12, the air inlet baffle 7 can increase the attachment area of ​​water vapor in the air inlet cavity 11, thereby improving the ability to intercept water vapor, thereby achieving the effect of assisting in removing water vapor in the exhaust gas. The same applies to the air outlet baffle 8.

[0033] Furthermore, a control cabinet 9 is provided on one side of the housing 1 , and the control cabinet 9 is electrically connected to the blower 2 , so that an operator can control the operation of the blower 2 through the control cabinet 9 .

[0034] Furthermore, the volute of the blower 2 is made of an aluminum alloy that has been treated for corrosion resistance, and has a longer service life.

[0035] Furthermore, the impeller of the blower 2 is a three-dimensional flow impeller.

[0036] Specifically, the motor of blower 2 is a permanent magnet motor and is equipped with a vector inverter. By combining the vector inverter, permanent magnet motor and three-dimensional flow impeller, the vector inverter is used to control the permanent magnet motor to work efficiently at a high speed. It can achieve efficient air supply operations within the wind pressure range of 1-40kpa, widely make up for the low working efficiency of axial flow fans in this wind pressure range, and truly achieve the purpose of environmental protection and energy saving.

[0037] Furthermore, the blower 2 is a double-head blower 2, and two inlet pipes 5 and two outlet pipes 6 are provided. The inlet pipes 5 are arranged in a one-to-one correspondence with the air inlet ends of the blower 2, and the outlet pipes 6 are arranged in a one-to-one correspondence with the air outlet ends of the blower 2, so that when the energy consumption is similar to that of the single-head blower 2, the air volume generated is increased by nearly one-fold, thereby improving the efficiency of exhaust gas emissions and enhancing economic benefits.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An exhaust device, characterized in that: include: housing, blower, air inlet drain pipe and air outlet drain pipe; The blower is arranged on a housing, and an air inlet cavity and an air outlet cavity are respectively arranged on the housing; An air inlet is provided on one inner wall of the air inlet cavity, an air inlet end of the blower is connected to an air inlet pipe, an end of the air inlet pipe away from the blower is connected to the air inlet cavity, and a port of the air inlet pipe connected to the air inlet cavity is higher than the bottom wall of the air inlet cavity; An air outlet is provided on one inner wall of the air outlet cavity, an air outlet end of the blower is connected to an air outlet pipe, an end of the air outlet pipe away from the blower is connected to the air outlet cavity, and a port of the air outlet pipe connected to the air outlet cavity is higher than the bottom wall of the air outlet cavity; The air inlet drainage pipe and the air outlet drainage pipe are both arranged on the shell, one end of the air inlet drainage pipe penetrates the bottom wall of the air inlet cavity and is connected to the air inlet cavity, and one end of the air outlet drainage pipe penetrates the bottom wall of the air outlet cavity and is connected to the air outlet cavity.

2. An exhaust device according to claim 1, characterized in that: The air inlet cavity and the air outlet cavity are respectively arranged at the top of the shell, and the bottom of the shell is provided with a containing cavity, and the blower, the air inlet drainage pipe and the air outlet drainage pipe are all arranged in the containing cavity.

3. An exhaust device according to claim 2, characterized in that: The air inlet and outlet pipes are both provided with valves at one end of the accommodating chamber and at one end of the accommodating chamber.

4. An exhaust device according to claim 2, characterized in that: The end of the air inlet pipe connected to the air inlet cavity is arranged on an inner wall of one side of the air inlet cavity, and the port of the air inlet pipe located on the side wall of the air inlet cavity is spaced apart from the bottom wall of the air inlet cavity in the vertical direction. The end of the air outlet pipe away from the blower passes through the bottom wall of the air outlet cavity from bottom to top and partially extends into the air outlet cavity.

5. An exhaust device according to claim 4, characterized in that: There are two air outlets, one of which is arranged on the top wall of the air outlet cavity, and the other of which is arranged on one side inner wall of the air outlet cavity.

6. An exhaust device according to claim 1, characterized in that: An air inlet baffle is provided on one side inner wall of the air inlet cavity along the vertical direction, and an air outlet baffle is provided on one side inner wall of the air outlet cavity along the vertical direction.

7. An exhaust device according to claim 1, characterized in that: A control cabinet is provided on one side of the housing, and the control cabinet is electrically connected to the blower.

8. An exhaust device according to claim 1, characterized in that: The volute of the blower is made of an aluminum alloy that has been treated for corrosion.

9. An exhaust device according to claim 1, characterized in that: The impeller of the blower is a three-dimensional flow impeller.

10. An exhaust device according to claim 1, characterized in that: The blower is a double-head blower, and two air inlet pipes and two air outlet pipes are provided. The air inlet pipes are arranged in a one-to-one correspondence with the air inlet ends of the blower, and the air outlet pipes are arranged in a one-to-one correspondence with the air outlet ends of the blower.

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