Noise reduction type combined throttling orifice plate

Abstract

The utility model relates to the technical field of water return of a water chilling unit, and discloses a noise reduction type combined throttling orifice plate which comprises a first water inlet connector, a first sealing washer is arranged at the position of a ring opening of the first water inlet connector, a porous orifice plate is arranged at the position of a ring opening of the first sealing washer, and a vibration reduction gasket is arranged on the outer side wall of the porous orifice plate. A single-hole pore plate is arranged at a ring opening of the damping gasket, a second sealing gasket is arranged on the outer side wall of the single-hole pore plate, and a second water inlet connector is arranged at a ring opening of the second sealing gasket. According to the noise reduction type combined throttling orifice plate, water flow enters the device through the second water inlet connector, flows through the single-hole orifice plate to be subjected to primary throttling, then flows through the multi-hole orifice plate to be subjected to secondary throttling and finally flows out of the first water inlet connector to enter an external water path, after two-stage throttling, flow field distribution is more reasonable, and noise is reduced; the first sealing washers are added between the connectors and the pore plates for sealing and first-stage vibration reduction, and the vibration reduction gaskets are added between the pore plates for second-stage vibration reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of water return of chillers, in particular to a noise reduction type combined throttling orifice plate. Background Art

[0002] Commercial chillers require multiple water supply circuits with varying flow rates. When control precision is less critical, orifice plates can be used in place of flow control valves to achieve pressure drop or flow control. Due to their simple structure, low manufacturing cost, and ease of installation, orifice plates can reduce equipment and maintenance costs while also allowing for a more compact and rational internal chiller layout.

[0003] However, during the application process, when the high and low pressure difference is too large, or the configuration of the fluid velocity and pipeline structure is unreasonable, noise and abnormal vibration often occur. Therefore, a noise-reducing combined throttling orifice plate is proposed to solve the problems mentioned in the above background. Utility Model Content

[0004] The purpose of the utility model is to provide a noise-reducing combined throttling orifice plate to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a noise-reducing combined throttling orifice plate, comprising a water inlet joint, a sealing gasket is provided at the ring opening of the water inlet joint, a porous plate is provided at the ring opening of the sealing gasket, a vibration-damping gasket is provided on the outer wall of the porous plate, a single-hole orifice plate is provided at the ring opening of the vibration-damping gasket, a sealing gasket is provided on the outer wall of the single-hole orifice plate, and a water inlet joint is provided at the ring opening of the sealing gasket.

[0006] Preferably, a plurality of honeycomb through holes are provided on the outer wall of the porous plate, and the honeycomb through holes are distributed in a ring array on the outer wall of the porous plate.

[0007] Preferably, a large through hole is opened at the center of the single-hole orifice plate.

[0008] Preferably, the water inlet connector 1, the sealing gasket 1, the porous plate, the vibration-damping gasket, the single-hole plate, the sealing gasket 2 and the opening of the water inlet connector 2 are continuously connected.

[0009] Preferably, the outer wall diameters of the water inlet connector 1, the sealing gasket 1, the porous orifice plate, the vibration-damping gasket, the single-hole orifice plate, the sealing gasket 2 and the water inlet connector 2 are consistent.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0011] First, in the present invention, water flows into the device from the second water inlet joint, flows through the single-hole orifice plate for primary throttling, then passes through the multi-hole orifice plate for secondary throttling, and finally flows out from the first water inlet joint into the external waterway. After two stages of throttling, the flow field distribution is more reasonable, and noise reduction is achieved; a sealing gasket is added between the joint and the orifice plate for sealing and primary vibration reduction, and a vibration-damping gasket is added between the individual orifice plates for secondary vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model.

[0013] Among them: 1. Water inlet joint 1; 2. Sealing gasket 1; 3. Multi-hole orifice plate; 4. Vibration-damping gasket; 5. Single-hole orifice plate; 6. Sealing gasket 2; 7. Water inlet joint 2. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] The utility model provides the following technical solutions:

[0016] Example 1

[0017] See also Figure 1 A noise reduction type combined throttling orifice plate comprises a water inlet joint 1, a sealing gasket 2 is provided at the ring opening of the water inlet joint 1, a porous plate 3 is provided at the ring opening of the sealing gasket 2, a vibration damping gasket 4 is provided on the outer wall of the porous plate 3, a single-hole orifice plate 5 is provided at the ring opening of the vibration damping gasket 4, a sealing gasket 2 6 is provided on the outer wall of the single-hole orifice plate 5, a water inlet joint 2 7 is provided at the ring opening of the sealing gasket 2 6, a plurality of honeycomb through holes are opened on the outer wall of the porous plate 3, and the honeycomb through holes are distributed in a ring array on the outer wall of the porous plate 3, and a large through hole is opened at the center of the single-hole orifice plate 5.

[0018] Through the above technical solution, water flows into the device from the water inlet joint 2 7, flows through the single-hole orifice plate 5 for primary throttling, then passes through the multi-hole orifice plate 3 for secondary throttling, and finally flows out from the water inlet joint 1 into the external waterway. After two stages of throttling, the flow field distribution is more reasonable, and noise reduction is achieved; a sealing gasket 2 is added between the joint and the orifice plate for sealing and primary vibration reduction, and a vibration-damping gasket 4 is added between the two orifice plates for secondary vibration reduction.

[0019] Example 2

[0020] See also Figure 1 , and on the basis of Example 1, it is further obtained that: the openings of the water inlet joint 1, the sealing gasket 2, the porous orifice plate 3, the vibration-damping gasket 4, the single-hole orifice plate 5, the sealing gasket 2 6 and the water inlet joint 2 7 are continuously arranged through, and the outer wall diameters of the water inlet joint 1, the sealing gasket 2, the porous orifice plate 3, the vibration-damping gasket 4, the single-hole orifice plate 5, the sealing gasket 2 6 and the water inlet joint 2 7 are consistent.

[0021] Through the above technical solution, the caliber of parts is consistent and the sources of parts are wide, thereby reducing production costs and maintenance costs.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit thereof, and the scope is defined by the appended claims and their equivalents.

Claims

1. A noise reduction combined throttle orifice plate, characterized by: The invention comprises a water inlet joint (1), a sealing gasket (2) is provided at the ring opening of the water inlet joint (1), a porous plate (3) is provided at the ring opening of the sealing gasket (2), a vibration-damping gasket (4) is provided on the outer wall of the porous plate (3), a single-hole plate (5) is provided at the ring opening of the vibration-damping gasket (4), a sealing gasket (6) is provided on the outer wall of the single-hole plate (5), and a water inlet joint (7) is provided at the ring opening of the sealing gasket (6).

2. The noise reduction combined throttle orifice plate according to claim 1, characterized in that: A plurality of honeycomb through holes are provided on the outer wall of the porous plate (3), and the honeycomb through holes are distributed in a ring array on the outer wall of the porous plate (3).

3. The noise reduction combined throttle orifice plate according to claim 1, characterized in that: A large through hole is provided at the center of the single-hole orifice plate (5).

4. The noise reduction combined throttle orifice plate according to claim 1, characterized in that: The openings of the water inlet joint 1 (1), the sealing gasket 1 (2), the porous plate (3), the vibration-damping gasket (4), the single-hole plate (5), the sealing gasket 2 (6) and the water inlet joint 2 (7) are continuously connected.

5. The noise reduction combined throttle orifice plate according to claim 1, characterized in that: The outer wall diameters of the water inlet joint 1 (1), the sealing gasket 1 (2), the porous orifice plate (3), the vibration damping gasket (4), the single-hole orifice plate (5), the sealing gasket 2 (6) and the water inlet joint 2 (7) are consistent.

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