U.S. patent application number 13/744404 was filed with the patent office on 2013-05-23 for water drainage system for blower.
This patent application is currently assigned to ZHONGSHAN BROAD-OCEAN MOTOR MANUFACTURING CO., LTD.. The applicant listed for this patent is ZHONGSHAN BROAD-OCEAN MOTOR MANUFACTURING CO., LTD.. Invention is credited to Wei Lei, Sanzeng Liang, Xiang Liu.
Application Number | 20130129491 13/744404 |
Document ID | / |
Family ID | 47041024 |
Filed Date | 2013-05-23 |
United States Patent
Application |
20130129491 |
Kind Code |
A1 |
Lei; Wei ; et al. |
May 23, 2013 |
WATER DRAINAGE SYSTEM FOR BLOWER
Abstract
A water drainage system for a blower, including a shell body (1)
and a shell cover (2). The shell body (1) is fitted with the shell
cover (2) to form a cavity (3) in which a wind wheel is arranged. A
side wall of the shell body (1) is protruded to form a wind pipe
(4) which is connected to the cavity (3). The wind pipe (4) is
provided with a water outlet (41).
Inventors: |
Lei; Wei; (Zhongshan,
CN) ; Liang; Sanzeng; (Zhongshan, CN) ; Liu;
Xiang; (Zhongshan, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
MANUFACTURING CO., LTD.; ZHONGSHAN BROAD-OCEAN MOTOR |
Zhongshan |
|
CN |
|
|
Assignee: |
ZHONGSHAN BROAD-OCEAN MOTOR
MANUFACTURING CO., LTD.
Zhongshan
CN
|
Family ID: |
47041024 |
Appl. No.: |
13/744404 |
Filed: |
January 17, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/CN2011/073017 |
Apr 19, 2011 |
|
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13744404 |
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Current U.S.
Class: |
415/182.1 |
Current CPC
Class: |
F04D 25/02 20130101;
F04D 29/708 20130101; F04D 29/00 20130101; F04D 25/0606 20130101;
F04D 27/008 20130101 |
Class at
Publication: |
415/182.1 |
International
Class: |
F04D 29/00 20060101
F04D029/00 |
Claims
1. A water drainage system for a blower, comprising: a) a shell
body (1); and b) a shell cover (2); wherein the shell body (1) is
fitted with the shell cover (2) to form a cavity (3) in which a
wind wheel is arranged; a side wall of the shell body (1) is
protruded to form a wind pipe (4) which is connected to the cavity
(3); and the wind pipe (4) is provided with a water outlet
(41).
2. The water drainage system of claim 1, wherein the water outlet
is disposed on an opposite side of the shell cover (2).
3. The water drainage system of claim 1, wherein an inner wall of
the wind pipe (4) is concave to form a water channel (42) and the
water channel (42) is connected to the water outlet (41).
4. The water drainage system of claim 2, wherein an inner wall of
the wind pipe (4) is concave to form a water channel (42) and the
water channel (42) is connected to the water outlet (41).
5. The water drainage system of claim 3, wherein a joint (5) is
disposed on an end of the wind pipe (4); the joint (5) comprises a
left sleeve (51), a right sleeve (52), and a stop ring (53) in the
middle; an inner diameter of the stop ring (53) is less than that
of the left sleeve (51) and the right sleeve (52), thus a left step
(531) and a right step (532) are formed; the wind pipe (4) is
inserted into the left sleeve (51), and an end surface of the wind
pipe (4) is limited by the left step (531); and an inner wall of
the stop ring (53) is provided with a guiding gutter (553); the
inner wall of the wind pipe (4) and the inner wall of the stop ring
(53) are at a same level; and the guiding gutter (533) is connected
to the water channel (42).
6. The water drainage system of claim 4, wherein a joint (5) is
disposed on an end of the wind pipe (4); the joint (5) comprises a
left sleeve (51), a right sleeve (52), and a stop ring (53) in the
middle; an inner diameter of the stop ring (53) is less than that
of the left sleeve (51) and the right sleeve (52), thus a left step
(531) and a right step (532) are formed; the wind pipe (4) is
inserted into the left sleeve (51), and an end surface of the wind
pipe (4) is limited by the left step (531); and an inner wall of
the stop ring (53) is provided with a guiding gutter (553); the
inner wall of the wind pipe (4) and the inner wall of the stop ring
(53) are at a same level; and the guiding gutter (533) is connected
to the water channel (42).
7. The water drainage system of claim 5, wherein a plurality of
guiding gutters (533) are arranged along an axial direction of the
inner wall of the stop ring (53), and each guiding gutter (533) is
at a certain interval with one another in the axial direction.
8. The water drainage system of claim 6, wherein a plurality of
guiding gutters (533) are arranged along an axial direction of the
inner wall of the stop ring (53), and each guiding gutter (533) is
at a certain interval with one another in the axial direction.
9. The water drainage system of claim 5, wherein one end of an
exhaust pipe (6) is inserted into the right sleeve (52), and an end
surface of the exhaust pipe (6) is limited by the right step (532);
and an inner wall of the exhaust pipe (6) is at the same level as
the inner wall of the stop ring (53).
10. The water drainage system of claim 6, wherein one end of an
exhaust pipe (6) is inserted into the right sleeve (52), and an end
surface of the exhaust pipe (6) is limited by the right step (532);
and an inner wall of the exhaust pipe (6) is at the same level as
the inner wall of the stop ring (53).
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation-in-part of International
Patent Application No. PCT/CN2011/073017 with an international
filing date of Apr. 19, 2011, designating the United States, now
pending, the contents of which, including any intervening
amendments thereto, are incorporated herein by reference. Inquiries
from the public to applicants or assignees concerning this document
or the related applications should be directed to: Matthias Scholl
P.C., Attn.: Dr. Matthias Scholl Esq., 14781 Memorial Drive, Suite
1319, Houston, Tex. 77079.
BACKGROUND OF THE INVENTION
[0002] 1. Filed of the Invention
[0003] The invention relates to a water drainage system for a
blower.
[0004] 2. Description of the Related Art
[0005] Furnace industry has minimized the use of fuel resources,
and thermal efficiency of typical furnaces has achieved to 90%.
With the improvement of the thermal efficiency, the amount of
liquids or humidity in exhaust gas increase, and condensed water is
released from the exhaust gas. Thus, the more condensed water
formed is, the higher efficiency the furnace has. Also, the amount
of the condensed water is dependent on the relative humidity of the
air used in the reaction of combustion. Condensed water in the air
exhausting device, particularly in the shell of the blower, is
required to be output, not only because it would otherwise result
in problems affecting the operating performance of the furnace, for
example, condensed water accumulated in the shell of the blower
would decrease the performance of the air, which in turn extinguish
the burning furnace; but also because the condensed water is acid,
which is a main factor that should be considered in selecting
materials of furnace.
[0006] To output the accumulated condensed water, a typical method
is that the scroll casing of a blower of a furnace is provide with
a drainage outlet connected with a joint of a drainage pipe,
however, condensed water can only be output when the blower is
powered off. When the blower is energized, air flow produce a
suction when passing the opening of the joint of the drainage pipe
due to the Venturi effect, which prevents the condensed water from
being output from the drainage pipe. Another typical method is
that: drainage channels are designed on a joint between the wind
pipe and the exhaust pipe. However, the joint has complicated
structure, high production cost, inconvenient installation, and the
drainage effect is not so good.
SUMMARY OF THE INVENTION
[0007] In view of the above-described problems, it is one objective
of the invention to provide a water drainage system for a blower
which has a simple structure, low production cost, and convenient
installation, and can output condensed waters effectively and
fast.
[0008] To achieve the above objective, in accordance with one
embodiment of the invention, there is provided a water drainage
system for a blower comprising a shell body and a shell cover. The
shell body is fitted with the shell cover to form a cavity in which
a wind wheel is arranged, a side wall of the shell body is
protruded to form a wind pipe which is connected to the cavity, and
the wind pipe is provided with a water outlet.
[0009] In a class of this embodiment, the water outlet is disposed
on an opposite side of the shell cover.
[0010] In a class of this embodiment, an inner wall of the wind
pipe is concave to form a water channel, which is connected to the
water outlet.
[0011] In a class of this embodiment, a joint is disposed on an end
of the wind pipe, the joint comprises a left sleeve, a right
sleeve, and a stop ring in the middle; an inner diameter of the
stop ring is less than that of the left sleeve and the right
sleeve, thus a left step and a right step are formed; the wind pipe
is inserted into the left sleeve, and the end of the wind pipe is
limited by the left step; an inner wall of the stop ring is
provided with a guiding gutter, the inner wall of the wind pipe and
the inner wall of the stop ring are at a same level, and the
guiding gutter is connected to the water channel.
[0012] In a class of this embodiment, a plurality of guiding
gutters are arranged along an axial direction of the inner wall of
the stop rings, and each guiding gutter is at a certain interval
with one another in the axial direction.
[0013] In a class of this embodiment, one end of an exhaust pipe is
inserted into the right sleeve, and an end surface of the exhaust
pipe is limited by the right step; and an inner wall of the exhaust
pipe is at the same level as the inner wall of the stop ring.
[0014] Advantages of the invention are summarized below:
[0015] 1) the invention employs a structure of a wind pipe
protruded from the shell body and a water outlet disposed on the
wind pipe, which has a simple structure, and reasonable
arrangement;
[0016] 2) the inner wall of the wind pipe is concave to form a
water channel which connected to the water outlet, to effectively
and fast output the condensed water; and
[0017] 3) a joint is employed to encase the end of the wind pipe,
the joint comprises a left sleeve, a right sleeve, and a stop ring
in the middle, the inner wall of the stop ring is relatively convex
from inner walls of the left sleeve and the right sleeve, thus a
left step and a right step are formed, the wind pipe is inserted
into the left sleeve and limited by the left step, guiding gutters
are arranged along the inner wall of the stop ring, an inner wall
of an exhaust pipe and the inner wall of the stop ring are at the
same level, the joint has a simple structure, easy installation,
and low production cost; furthermore, water channel is connected
with the guiding gutters, which can fast and effectively output the
condensed water.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The invention is described hereinbelow with reference to
accompanying drawings, in which:
[0019] FIG. 1 is a stereogram of a drainage system for a blower in
accordance with one embodiment of the invention;
[0020] FIG. 2 is an exploded view of a drainage system for a blower
in accordance with one embodiment of the invention;
[0021] FIG. 3 is a stereogram of a drainage system for a blower
after dismounting an exhaust pipe in accordance with one embodiment
of the invention;
[0022] FIG. 4 is a front view of a drainage system for a blower
after dismounting an exhaust pipe in accordance with one embodiment
of the invention;
[0023] FIG. 5 is a cross-sectional view taken from line A-A of FIG.
4;
[0024] FIG. 6 is a partial enlarged view taken from VI of FIG.
5;
[0025] FIG. 7 is a stereogram of a joint of a joint of a drainage
system for blower in accordance with one embodiment of the
invention; and
[0026] FIG. 8 is a cross-sectional view of a joint of a drainage
system for blower in accordance with one embodiment of the
invention.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] Detailed description of the invention will be given below in
conjunction with accompanying drawings.
[0028] As shown in FIGS. 1-8, a water drainage system for blower
comprises a shell body 1, a shell cover 2, and a motor 7. The shell
body 1 is fitted with the shell cover 2 to form a cavity 3 in which
a wind wheel is arranged. A side wall of the shell body 1 is
protruded to form a wind pipe 4 which is connected to the cavity 3.
The wind pipe 4 is provided with a water outlet 41 which is on an
opposite side of the shell cover 2. An inner wall of the wind pipe
4 is concave to form a water channel 42, which is connected to the
water outlet 41. A joint 5 is disposed on one end of the wind pipe
4. The joint 5 comprises a left sleeve 51, a right sleeve 52, and a
stop ring 53 in the middle. The inner diameter of the stop ring 53
is less than that of the left sleeve 51 and the right sleeve 52,
thus a left step 531 and a right step 532 are formed. The wind pipe
4 is inserted into the left sleeve 51, and the end of the wind pipe
4 is limited by the left step 531. An inner wall of the stop ring
53 is provided with a guiding gutter 553. The inner wall of the
wind pipe 4 and the inner wall of the stop ring 53 are at a same
level, and the guiding gutter 533 is connected to the water channel
42. A plurality of guiding gutters 533 are arranged along an axial
direction of the inner wall of the stop rings 53, and each guiding
gutter 533 is at a certain interval with one another in the axial
direction. One end of an exhaust pipe 6 is inserted into the right
sleeve 52, and an end surface of the exhaust pipe 6 is limited by
the right step 532. An inner wall of the exhaust pipe 6 is at the
same level as the inner wall of the stop ring 53.
[0029] Working principle of the water drainage system of the
invention: gas output from a furnace carries liquids or vapors
which turn into condensed water, the condensed water runs through
the guiding gutters 533 arranged on the inner wall of the stop ring
53, and through the water channel 42 formed by the concave inner
wall of the wind pipe 4, and is finally output from the water
outlet 41 of the wind pipe 4. The water drainage system has a
simple structure, low production cost, convenient installation, and
good effect of drainage.
[0030] While particular embodiments of the invention have been
shown and described, it will be obvious to those skilled in the art
that changes and modifications may be made without departing from
the invention in its broader aspects, and therefore, the aim in the
appended claims is to cover all such changes and modifications as
fall within the true spirit and scope of the invention.
* * * * *