Pressure relief device for dust filtration and exhaust pipeline

Abstract

The utility model relates to the technical field of workshop dust filtration and exhaust treatment, in particular to a pressure relief device for a dust filtration and exhaust pipeline. Comprising a first exhaust pipe, a second exhaust pipe and an exhaust branch pipe which are arranged on a workshop ceiling, the first exhaust pipe and the second exhaust pipe are arranged in parallel along the two sides of the bottom of the workshop ceiling, and both the first exhaust pipe and the second exhaust pipe are communicated with an air outlet of the dust filter unit; one end of each air exhaust branch pipe is communicated with the first air exhaust pipe, the other end of each air exhaust branch pipe is communicated with the second air exhaust pipe, the number of the air exhaust branch pipes is at least three, the air exhaust branch pipes are distributed at equal intervals in the length or width direction of the workshop, and the air exhaust branch pipes are provided with air exhaust parts capable of manually adjusting the air exhaust rate. The device not only can feed filtered dust exhaust air into the workshop to ensure that the negative pressure of the workshop is normal, but also is simple in structure, and is convenient for operators to open a reasonable number of exhaust parts according to the negative pressure condition of the workshop.

Description

Technical Field

[0001] The utility model relates to the technical field of dust filtering and exhaust in workshops, in particular to a pressure relief device for dust filtering and exhaust pipes. Background Art

[0002] In the carding process workshop, there is a dust filtering unit for extracting the air in the workshop and filtering the floating substances in the air. In actual use, the air in the workshop has always been discharged externally to meet the production requirements of the dust filtering unit. Due to the uneven distribution of the dust filtering units in each workshop, the air volume generated by the dust filtering units is greater than the air volume processed in the air conditioning room, resulting in a large negative pressure in the carding process workshop. This causes large fluctuations in the humidity of the carding process in the workshop and affects production. Therefore, it is urgent to solve.

[0003] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is the closest prior art. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a pressure relief device for a dust filtering and exhaust pipe. This device can not only send the filtered dust exhaust air into the workshop to ensure the normal negative pressure in the workshop, but also has a simple structure, facilitating the operator to open a reasonable number of exhaust parts according to the negative pressure situation in the workshop.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows. The pressure relief device for a dust filtering and exhaust pipe includes: a first exhaust pipe, a second exhaust pipe, and exhaust branch pipes arranged on the ceiling of the workshop; the first exhaust pipe and the second exhaust pipe are arranged in parallel along both sides of the bottom of the workshop ceiling, and both the first exhaust pipe and the second exhaust pipe are communicated with the air outlet of the dust filtering unit; one end of the exhaust branch pipe is communicated with the first exhaust pipe, and the other end is communicated with the second exhaust pipe. There are at least three exhaust branch pipes, which are equally spaced along the length or width direction of the workshop, and exhaust parts for manually adjusting the exhaust air volume are provided on the exhaust branch pipes.

[0006] Preferably, there are at least three exhaust parts on the exhaust branch pipe, which are equally spaced along the length direction of the exhaust branch pipe.

[0007] Preferably, the exhaust part includes a connecting outer exhaust cylinder, a rotating handle, and an inner exhaust cylinder; the top end of the outer exhaust cylinder is communicated with the exhaust branch pipe, and exhaust holes are provided on the side wall of the outer exhaust cylinder; the inner exhaust cylinder is nested inside the outer exhaust cylinder, and butt holes with the same width as the exhaust holes are provided on the inner exhaust cylinder; one end of the rotating handle is located at the bottom of the outer exhaust cylinder, and the other end passes through the bottom of the outer exhaust cylinder and is connected to the inner exhaust cylinder.

[0008] Preferably, there are at least three exhaust holes, which are evenly spaced along the vertical direction of the outer exhaust cylinder; the docking holes are strip-shaped and are arranged along the vertical direction of the inner exhaust cylinder, and one docking hole is communicated with all the exhaust holes in the same vertical column on the outer exhaust cylinder.

[0009] Preferably, a circular ring is provided at the bottom of the rotating handle.

[0010] Preferably, the exhaust part includes an inner cylinder, an outer cylinder and a locking structure; at least three evenly spaced air outlet holes are arranged on the outer cylinder along the vertical direction, and the top of the outer cylinder is communicated with the exhaust branch pipe; the inner cylinder is inserted into the bottom end of the outer cylinder to form a nested fit, and a sliding connection is formed with the outer cylinder in the vertical direction, and the inner cylinder seals or opens the air outlet holes in turn during the process of sliding inside the outer cylinder; the locking structure is arranged on the inner cylinder and the outer cylinder to limit the relative sliding between the inner cylinder and the outer cylinder.

[0011] Preferably, the locking structure includes two adjusting frames and a T-shaped rod; the adjusting frames are arranged below the outer cylinder, and the top of the adjusting frame is connected to the outer cylinder. There are hooks with upward openings on the adjusting frames. There are at least three hooks, which are evenly spaced along the vertical direction of the adjusting frame; the vertical rod of the T-shaped rod is vertically connected to the bottom of the inner cylinder, and both ends of the horizontal rod of the T-shaped rod are clamped with the hooks on the adjusting frame.

[0012] The beneficial effects of the present utility model are embodied in:

[0013] (1) The device provided by the present utility model is in the exhaust part below the dust filtering exhaust pipe. Through the pressure relief of the exhaust part, part of the filtered dust exhaust air is sent into the bale opening and blending room, so that the negative pressure in the blowing room is significantly improved. At the same time, the humidity is very stable compared with the previous period, and the effect is obvious, meeting the transformation expectation.

[0014] (2) The device provided by the present utility model has a simple structure. The operator can open an appropriate number of exhaust parts at an appropriate position and adjust the opening degree of the exhaust parts according to the negative pressure situation in the workshop, so that the negative pressure in the whole workshop is more balanced after adjustment. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a bottom view of the exhaust part of the present utility model;

[0017] Figure 3 is a front view of the first scheme of the exhaust part of the present utility model;

[0018] Figure 4 is a front view of the inner exhaust cylinder of the first scheme of the exhaust part of the present utility model;

[0019] Figure 5 This is the front view of the second solution of the exhaust part of the present utility model.

[0020] Explanation of reference numerals:

[0021] A, workshop ceiling;

[0022] 11, first exhaust duct; 12, second exhaust duct; 13, exhaust branch duct; 20, exhaust part; 21, outward flanging; 22, external exhaust cylinder; 221, exhaust hole; 23, rotating handle; 25, internal exhaust cylinder; 251, docking hole; 26, inner cylinder; 27, adjusting frame; 28, outer cylinder; 281, air outlet hole; 29, T-shaped rod. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] See Figures 1-5 as shown:

[0026] The present utility model provides a pressure relief device for a dust-filtering exhaust duct, including: a pressure relief device for a dust-filtering exhaust duct, characterized in that it includes: a first exhaust duct 11, a second exhaust duct 12 and an exhaust branch duct 13 provided on the workshop ceiling A.

[0027] In actual layout, according to the shape and size of the workshop, the first exhaust duct 11 and the second exhaust duct 12 are arranged in parallel along both sides of the bottom of the workshop ceiling A, and both the first exhaust duct 11 and the second exhaust duct 12 are communicated with the air outlet of the dust-filtering unit; one end of the exhaust branch duct 13 is communicated with the first exhaust duct 11, and the other end is communicated with the second exhaust duct 12. There are at least three exhaust branch ducts 13, which are equally spaced along the length or width direction of the workshop, and an exhaust part 20 for manually adjusting the exhaust air volume is provided on the exhaust branch duct 13.

[0028] There are at least three exhaust parts 20 on the exhaust branch duct 13, which are equally spaced along the length direction of the exhaust branch duct 13.

[0029] Through such a setting, the exhaust air generated by the dust-filtering unit can be evenly transported to each area of the workshop, so that the negative pressure of the entire workshop can be adjusted in time.

[0030] The exhaust section 20 includes an outer exhaust cylinder 22, a rotating handle 23, and an inner exhaust cylinder 25.

[0031] The top of the outer exhaust cylinder 22 is provided with an outward flanging 21, and the outward flanging 21 is connected to the exhaust branch pipe 13, so that the top end of the outer exhaust cylinder 22 is communicated with the exhaust branch pipe 13, and exhaust holes 221 are provided on the side wall of the outer exhaust cylinder 22; the inner exhaust cylinder 25 is nested inside the outer exhaust cylinder 22, and the inner exhaust cylinder 25 is provided with butt holes 251 having the same width as the exhaust holes 221; one end of the rotating handle 23 is located at the bottom of the outer exhaust cylinder 22, and the other end passes through the bottom of the outer exhaust cylinder 22 and is connected to the inner exhaust cylinder 25.

[0032] There are at least three exhaust holes 221, and they are equally spaced along the vertical direction of the outer exhaust cylinder 22; the butt holes 251 are provided in a long strip shape and are arranged along the vertical direction of the inner exhaust cylinder 25, and one butt hole 251 is communicated with all the exhaust holes 221 in the same vertical column on the outer exhaust cylinder 22. A ring is provided at the bottom of the rotating handle 23.

[0033] During actual operation, the operator opens an appropriate number of exhaust sections 20 according to the negative pressure adjustment requirements in the workshop, and rotates the rotating handle 23 to rotate the inner exhaust cylinder 25, so as to adjust the opening degree of the exhaust holes 221 on the outer exhaust cylinder 22, and adjust the exhaust volume of the exhaust section 20.

[0034] The exhaust section 20 includes an inner cylinder 26, an outer cylinder 28, and a locking structure.

[0035] At least three equally spaced air outlet holes 281 are arranged on the outer cylinder 28 along the vertical direction, and the top of the outer cylinder 28 is communicated with the exhaust branch pipe 13. The inner cylinder 26 is inserted into the bottom end of the outer cylinder 28 to form a nested fit, and a sliding connection is formed with the outer cylinder 28 in the vertical direction. During the process of the inner cylinder 26 sliding inside the outer cylinder 28, the air outlet holes 281 are sequentially sealed or opened. The locking structure is arranged on the inner cylinder 26 and the outer cylinder 28 to limit the relative sliding between the inner cylinder 26 and the outer cylinder 28.

[0036] The locking structure includes two adjusting frames 27 and a T-shaped rod 29.

[0037] The adjusting frame 27 is arranged below the outer cylinder 28, and the top of the adjusting frame 27 is connected to the outer cylinder 28. The adjusting frame 27 is provided with hooks with upward openings. There are at least three hooks, and they are equally spaced along the vertical direction of the adjusting frame 27. The vertical rod of the T-shaped rod 29 is vertically connected to the bottom of the inner cylinder 26, and both ends of the horizontal rod of the T-shaped rod 29 are clamped with the hooks on the adjusting frame 27.

[0038] In actual use, the operator moves the inner cylinder 26 downward from the bottom of the outer cylinder 28, so that the air outlet holes 281 can be opened in sequence, thereby opening the entire air outlet 20 and completing the adjustment of the air volume at the same time.

[0039] Considering that the height of the workshop ceiling A is relatively high, a telescopic rod is provided at the same time. The end of the telescopic rod can be clamped to the ring or the T-shaped rod 29 on the rotating handle 23, so as to facilitate the operator to adjust the exhaust part 20 through the telescopic rod.

[0040] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly. In addition, if there are descriptions such as "first" and "second" in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, "a plurality" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure relief device for dust filter exhaust duct, characterized in that: include: A first exhaust duct (11), a second exhaust duct (12) and an exhaust branch duct (13) are arranged on a workshop ceiling (A); the first exhaust duct (11) and the second exhaust duct (12) are arranged in parallel along both sides of the bottom of the workshop ceiling (A), and the first exhaust duct (11) and the second exhaust duct (12) are both connected to the air outlet of a dust filter unit; one end of the exhaust branch duct (13) is connected to the first exhaust duct (11), and the other end is connected to the second exhaust duct (12); there are at least three exhaust branch ducts (13) which are evenly spaced along the length or width of the workshop, and an exhaust portion (20) whose exhaust volume can be manually adjusted is provided on the exhaust branch duct (13).

2. The pressure relief device for dust filtering and exhaust duct according to claim 1, characterized in that: There are at least three exhaust parts (20) on the exhaust branch pipe (13), which are evenly spaced and distributed along the length direction of the exhaust branch pipe (13).

3. The pressure relief device for dust filtering and exhaust duct according to claim 2, characterized in that: The exhaust part (20) comprises an outer exhaust cylinder (22), a rotating handle (23) and an inner exhaust cylinder (25); the top end of the outer exhaust cylinder (22) is connected to the exhaust branch pipe (13), and an exhaust hole (221) is provided on the side wall of the outer exhaust cylinder (22); the inner exhaust cylinder (25) is nested inside the outer exhaust cylinder (22), and a docking hole (251) having the same width as the exhaust hole (221) is provided on the inner exhaust cylinder (25); one end of the rotating handle (23) is located at the bottom of the outer exhaust cylinder (22), and the other end passes through the bottom of the outer exhaust cylinder (22) and is connected to the inner exhaust cylinder (25).

4. The pressure relief device for dust filtering and exhaust duct according to claim 3, characterized in that: There are at least three exhaust holes (221) which are evenly spaced along the vertical direction of the outer exhaust cylinder (22); the docking hole (251) is configured as a long strip and is arranged along the vertical direction of the inner exhaust cylinder (25), and one docking hole (251) is connected to the exhaust holes (221) in the same vertical row on the outer exhaust cylinder (22).

5. The pressure relief device for dust filtering and exhaust duct according to claim 4, characterized in that: A circular ring is arranged at the bottom of the rotating handle (23).

6. The pressure relief device for dust filtering and exhaust duct according to claim 3, characterized in that: The exhaust part (20) comprises an inner tube (26), an outer tube (28) and a locking structure; at least three air outlet holes (281) are arranged on the outer tube (28) at equal intervals in the vertical direction, and the top of the outer tube (28) is connected to the exhaust branch pipe (13); the inner tube (26) is inserted along the bottom end of the outer tube (28) to form a nested fit, and is slidably connected with the outer tube (28) in the vertical direction, and the air outlet holes (281) are sealed or opened in sequence during the sliding process of the inner tube (26) along the inside of the outer tube (28); the locking structure is arranged on the inner tube (26) and the outer tube (28) to limit the relative sliding between the inner tube (26) and the outer tube (28).

7. The pressure relief device for dust filtering and exhaust duct according to claim 6, characterized in that: The locking structure comprises two adjustment frames (27) and a T-shaped rod (29); the adjustment frame (27) is arranged below the outer cylinder (28), and the top of the adjustment frame (27) is connected to the outer cylinder (28); the adjustment frame (27) is provided with hooks with openings facing upward, and at least three hooks are evenly spaced and distributed along the vertical direction of the adjustment frame (27); the vertical rod of the T-shaped rod (29) is vertically connected to the bottom of the inner cylinder (26), and the two ends of the horizontal rod of the T-shaped rod (29) are clamped with the hooks on the adjustment frame (27).

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