Spray head assembly for seafood pool oxygenation device

Abstract

The utility model relates to a nozzle assembly for a seafood pool oxygenation device, which comprises an oxygenation shaft connected with an oxygenation pump and a nozzle cover at the end part, the outer wall of the oxygenation shaft is provided with a vent hole, and at least two diffusion sheets are sleeved outside the oxygenation shaft. Inner groove holes communicated with the vent holes are formed in the inner ring of the diffusion sheet, a plurality of diffusion grooves are formed in the outer ring of the diffusion sheet, torrent channels are arranged between the inner groove holes and the diffusion grooves, and a circumferential ventilation gap is formed between the diffusion sheet and the spraying cover. Through the design, oxygen is discharged at a high speed in the oxygenation shaft and passes through the diffusion sheet to form an air flow which is jetted in the circumferential direction of the spray head, so that the coverage of the oxygen in water is enlarged, the retention time of the oxygen in the water is prolonged, the oxygenation efficiency of a seafood pool is improved, and the survival time of seafood is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of seafood pools, in particular to a nozzle assembly for an oxygenation device in a seafood pool. Background Art

[0002] Seafood pools, also known as large seafood aquaculture fish tanks, are temporary aquariums for various types of seafood such as fish, shrimp, and shellfish. They are mostly used in restaurants, supermarkets, hotels, seafood stores, restaurants, seafood markets, and other scenes. In addition to the fish tanks used to culture seafood and the frames used to support the fish tanks, seafood pools also include a circulating water system, an oxygen enrichment system, and a refrigeration system to provide a comfortable breeding environment for seafood.

[0003] The oxygen enrichment system of the existing seafood pool mainly adopts an oxygen enrichment sand head which is directly placed into the seafood pool to oxygenate the water in the seafood pool. The existing Chinese utility model patent with publication number CN214015571U discloses a replaceable anti-backflow seafood pool oxygen enrichment sand head, which is composed of a sand head 1, an upper sleeve 2, an O-ring 3, a sealing gasket 4, a lower sleeve 5, and a built-in check valve 6. It is characterized in that the sand head 1 and the upper sleeve 2 are bonded into one body, the upper sleeve 2 and the lower sleeve 5 are connected by threads, which is convenient for replacement when the sand head is blocked, the upper sleeve 2 and the lower sleeve 5 are sealed with the glass sandwiched in the middle by the O-ring 3 and the silicone sealing gasket 4, and the backflow of water is prevented by the built-in check valve of the upper sleeve 2. The oxygenating sand head of the utility model patent is easy to maintain and replace, has a beautiful style, and has a good oxygenating effect. However, a common problem of this type of oxygenating sand head is that after the oxygen pump delivers oxygen to the water body, due to the structure of this type of oxygenating sand head limiting the direct vertical flow of oxygen to the horizontal, the oxygen stays in the water for a short time and has a narrow coverage area. Part of the air floats directly to the water surface, resulting in low dissolved oxygen in the water. Especially in seafood pools, the water level is relatively low for easy scooping, resulting in low oxygenation efficiency when this type of oxygenating sand head oxygenates the water body, thereby reducing the survival time of seafood. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a nozzle assembly for a seafood pool oxygenation device in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nozzle assembly for a seafood pool oxygenation device, comprising a nozzle body, the nozzle body comprising an oxygenation shaft for connecting to an oxygenation pump and a spray cover arranged at the end of the oxygenation shaft, the outer wall of the oxygenation shaft is provided with a plurality of ventilation holes connected to the oxygenation shaft, the outer sleeve of the oxygenation shaft is provided with at least two diffusion sheets, the inner circle of the diffusion sheet has an inner slot hole that abuts against the outer wall of the oxygenation shaft and is connected to the ventilation hole, the outer circle has a plurality of diffusion grooves, and a torrent channel is provided between the inner slot hole and the diffusion groove, and a ventilation gap is circumferentially arranged between the diffusion sheet and the spray cover.

[0006] By adopting the above technical scheme, the oxygen pump passes oxygen into the oxygenation shaft. Since the end of the oxygenation shaft is blocked by the spray cover, the oxygen can only be discharged at high speed through the narrow ventilation holes, and the oxygenation shaft is sleeved with multiple diffusion sheets. The oxygen discharged at high speed in the ventilation holes will enter the inner groove hole, and then accelerate again along the narrow and long rapids channel to enter the diffusion groove for diffusion and pass through the ventilation gap to eject the air flow along the circumference of the nozzle, and form oxygen bubbles in the water. After such an arrangement, the oxygen that was originally directly sprayed longitudinally is changed to be horizontally ejected and circumferentially sprayed, that is, the coverage area of ​​oxygen in the water is increased. Due to the increase in stroke, the residence time and coverage area of ​​oxygen in the water are increased, which greatly increases the oxygen content per unit area in the seafood pool, improves the oxygenation efficiency, and prolongs the survival time of seafood.

[0007] The above-mentioned nozzle assembly for seafood pool oxygenation device can be further configured as follows: the diffusion groove is a fan-shaped structure, and its inner arc connected to the rapid flow channel gradually widens toward the outer arc direction.

[0008] By adopting the above technical solution, the fan-shaped structure design of the diffusion groove allows oxygen to quickly move along the inner arc to the outer arc with a larger diameter when passing through the diffusion groove, and can diffuse more evenly to the surroundings, thereby improving the oxygenation efficiency.

[0009] The above-mentioned nozzle assembly for seafood pool oxygenation device can be further configured as follows: the vent hole is arranged at one end of the oxygenation shaft close to the spray cover, the number of the diffusion grooves is not less than 2, and they are arranged around the inner groove hole.

[0010] By adopting the above technical solution, the vent hole is arranged at one end of the oxygenation shaft close to the spray cover, which is conducive to the direct entry of oxygen into the diffuser. The number of diffusion grooves is not less than 2, which are arranged around the inner groove hole to ensure that oxygen can be dispersed into the water body from multiple directions.

[0011] The nozzle assembly for the seafood pool oxygenation device can be further configured as follows: a connecting plate is provided between adjacent diffusion slots, and the width of the connecting plate is smaller than that of the diffusion slot.

[0012] By adopting the above technical solution, this design not only ensures the structural stability of the diffuser, but also enables the connecting plate to partially cover the rapid flow channel, so that high-speed oxygen rapid flow is diffused into the diffusion groove and dispersed to the surroundings along both sides of the diffusion groove.

[0013] The above-mentioned nozzle assembly for seafood pool oxygenation device can be further configured as follows: the number of the diffusion plates is 4, the number of the ventilation holes is 4, the number of the diffusion slots on the diffusion plates is 4, and they are equidistantly distributed around the inner slot holes.

[0014] By adopting the above technical solution, the diffusion sheets and diffusion grooves are evenly distributed, so that oxygen can be evenly diffused to the surroundings, thereby increasing the dissolved oxygen content of the water body.

[0015] The above-mentioned nozzle assembly for a seafood pond oxygenation device can be further configured as follows: the diffusion plates are sleeved on the outer circumferential surface of the oxygenation shaft, and the diameter of the diffusion plates gradually widens from the spray cover toward the oxygenation shaft, and the diameter of the diffusion plates close to the end of the spray cover is not larger than the diameter of the spray cover.

[0016] By adopting the above technical solution, the diameter of the diffuser is not larger than the diameter of the nozzle, so as to avoid the diffuser extending out of the nozzle and directly contacting the aquatic products in the seafood pool and causing damage. The diffuser gradually widens downwards and collects oxygen from wide to narrow to achieve torrent oxygen spraying, which is beneficial to the dispersion of oxygen and maintains the overall beauty and practicality of the nozzle assembly.

[0017] The above-mentioned nozzle assembly for seafood pool oxygenation device can be further configured as follows: the rapid flow channels between adjacent diffusion sheets are staggered.

[0018] By adopting the above technical solution, the rapid flow channels between adjacent diffusers are staggered, so that the oxygen can produce a better mixing effect when passing through the diffusers, and the staggered diffusers enable the ejected oxygen to produce a swirl in the water, which can ensure that the oxygen is in full contact with the water, and help to increase the dissolved oxygen content of the seafood pool water.

[0019] The above-mentioned nozzle assembly for a seafood pool oxygenation device can be further configured as follows: the diffusion plate is made of metal.

[0020] When adopting the above technical solution, the diffuser is preferably made of a metal material with deformation force. The metal material ensures the contact between the diffuser and the metal material of the nozzle, so that it always has a circumferential ventilation gap, and can deform to increase pressure and reduce pressure with the size of the airflow. Compared with other materials, it has better durability and stability. The metal material can withstand long-term use and corrosion in environments such as seawater, ensuring the long-term and effective operation of the nozzle assembly.

[0021] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0023] Figure 2 A three-dimensional schematic diagram of an embodiment of the utility model Figure 2 .

[0024] Figure 3 for Figure 1 Exploded diagram.

[0025] Figure 4 for Figure 1 The explosion Figure 2 .

[0026] Figure 5 for Figure 1 The explosion Figure 3 .

[0027] Figure 6 This is a rendering of the effect of the embodiment of the utility model when used on a seafood pool oxygenation device.

[0028] Figure 7 for Figure 6 Enlarged view of point A. Implementation

[0029] like Figure 1-Figure 5 As shown, a nozzle assembly for an oxygenation device for a seafood pond includes a nozzle body, the nozzle body includes an oxygenation shaft 1 for connecting to an oxygenation pump and a spray cover 2 arranged at the end of the oxygenation shaft 1, the outer wall of the oxygenation shaft 1 close to the spray cover 2 is circumferentially provided with four ventilation holes 11 connected to the oxygenation shaft 1, the outer cover of the oxygenation shaft 1 is provided with four axially stacked diffusion sheets 3, the inner ring of the diffusion sheet 3 has an inner slot hole 31 that abuts against the outer wall of the oxygenation shaft 1 and is connected to the ventilation hole 11, the outer ring has four diffusion grooves 32 equidistantly distributed around the inner slot hole 31, a torrent channel 33 is provided between the inner slot hole 31 and the diffusion groove 32, and there is a diffuser 34 between the diffusion sheet 3 and the spray cover 4. A ventilation gap is arranged circumferentially, and the diffusion groove 32 is a fan-shaped structure. The inner arc 321 connected to the rapid flow channel 33 gradually widens toward the outer arc 322. A connecting plate 34 is provided between adjacent diffusion grooves 32. The width of the connecting plate 34 is smaller than that of the diffusion groove 32. The rapid flow channels 33 are staggered between adjacent diffusion sheets 3. The diffusion sheets 3 are sleeved on the outer peripheral surface of the aeration shaft 1, and the diameter of the diffusion sheets 3 gradually widens from the spray cover 2 to the aeration shaft 1. The diameter of the diffusion sheet 3 near the end of the spray cover 2 is not larger than the diameter of the spray cover 2, which increases the residence time and coverage of oxygen in the water and effectively improves the oxygenation efficiency.

[0030] like Figure 6 , Figure 7As shown, when the nozzle assembly of the utility model is used on the seafood pool oxygenation device, a countersunk hole 41 needs to be opened at the bottom of the glass 4 of the seafood pool, and then the oxygenation shaft 1 of the nozzle body is inserted into the countersunk hole 41 from above the glass 4, the diffuser 3 is arranged in the countersunk hole 41, and the spray cover 2 is arranged outside the countersunk hole 41. After the oxygenation shaft 1 passes through the glass 4, it is threadedly connected with the oxygenation pipe 5 of the oxygenation pump, and the nozzle assembly is locked. Preferably, a sealing ring is arranged on the outer shell of the oxygenation shaft 1 at the bottom to enhance the sealing effect. When the oxygenation pump supplies air, oxygen enters the oxygenation shaft 1. When the oxygen reaches the end of the oxygenation shaft, due to the blocking effect of the spray cover, the oxygen can only be discharged at high speed through these narrow vents 11, and then the axially input oxygen is axially dispersed into the vents 11 around it, and the discharged high-speed oxygen enters the inner slot 31 of the inner circle of the diffuser 3. The inner slot 31 and The vent 11 is connected, and the oxygen is further accelerated here. The accelerated oxygen flows along the rapid flow channel 33 between the inner circle and the outer circle of the diffuser 3. This channel is designed to be narrow and long, which helps to further accelerate the oxygen. After flowing through the rapid flow channel 33, the oxygen enters the diffusion groove 32 of the outer circle of the diffuser. The diffusion groove 32 is designed to be a fan-shaped structure, and the inner arc gradually widens toward the outer arc, so that the oxygen can be diffused more evenly around. The oxygen passing through the diffusion groove is finally ejected into the airflow through the ventilation gap arranged circumferentially between the diffuser 3 and the spray cover 2, and oxygen bubbles are formed in the water. Compared with the prior art, the nozzle assembly changes the oxygen that was originally directly ejected longitudinally into a transverse ejection and circumferential spray, which increases the coverage and residence time of oxygen in the water, thereby increasing the oxygen content per unit area in the seafood pool and increasing the survival time of seafood.

Claims

1. A nozzle assembly for a seafood pool oxygenation device, comprising a nozzle body, characterized in that: The nozzle body includes an oxygenation shaft for connecting to an oxygenation pump and a spray cap arranged at the end of the oxygenation shaft, the outer wall of the oxygenation shaft is provided with a plurality of ventilation holes communicated with the oxygenation shaft, the outer sleeve of the oxygenation shaft is provided with at least two diffusion plates, the inner circle of the diffusion plate has an inner slot hole abutting against the outer wall of the oxygenation shaft and communicated with the ventilation holes, the outer circle has a plurality of diffusion grooves, rapid flow channels are provided between the inner slot holes and the diffusion grooves, and a ventilation gap is circumferentially arranged between the diffusion plate and the spray cap.

2. A nozzle assembly for a seafood pool oxygenation device according to claim 1, characterized in that: The diffusion groove is a fan-shaped structure, and the inner arc connected to the rapid flow channel gradually widens toward the outer arc.

3. A nozzle assembly for a seafood pool oxygenation device according to claim 2, characterized in that: The vent hole is arranged at one end of the oxygenation shaft close to the spray cover, and the number of the diffusion grooves is not less than 2 and is arranged around the inner groove hole.

4. A nozzle assembly for a seafood pool oxygenation device according to claim 3, characterized in that: A connecting plate is provided between adjacent diffusion slots, and the width of the connecting plate is smaller than that of the diffusion slot.

5. A nozzle assembly for a seafood pool oxygenation device according to claim 3, characterized in that: The number of the diffusion sheets is 4, the number of the ventilation holes is 4, the number of the diffusion slots on the diffusion sheets is 4, and they are evenly distributed around the inner slot holes.

6. A nozzle assembly for a seafood pool oxygenation device according to any one of claims 1 to 5, characterized in that: The diffusion sheets are sleeved on the outer peripheral surface of the oxygenation shaft, and the diameter of the diffusion sheets gradually widens from the spray cover to the oxygenation shaft, and the diameter of the diffusion sheets close to the end of the spray cover is not larger than the diameter of the spray cover.

7. A nozzle assembly for a seafood pool oxygenation device according to any one of claims 1 to 5, characterized in that: The rapid flow channels between adjacent diffusion sheets are staggered.

8. A nozzle assembly for a seafood pool oxygenation device according to any one of claims 1 to 5, characterized in that: The diffusion sheet is made of metal.

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