Jet flow structure and denitrification device

Abstract

The utility model provides a jet flow structure and a denitrification device. The jet flow structure is provided with a water inlet, a mixing cavity, a water outlet, a first gas guide groove and a first gas guide channel; the mixing cavity is communicated with the water inlet and the water outlet, the water inlet is used for being communicated with a water pump structure, the water outlet is used for being communicated with a water tank structure, the first air guide groove is communicated with the first air guide channel, a plurality of air inlet hole sets are formed in the inner wall of the mixing cavity, and the first air guide channel is communicated with the mixing cavity through each air inlet hole set. The jet flow structure has a good removal effect on nitrogen in water.

Description

Technical Field

[0001] The present disclosure relates to the technical field of denitrification devices, and in particular to a jet structure and a denitrification device. Background Art

[0002] The denitrification device is a water treatment device used to reduce the nitrogen content in water. In the field of aquaculture, the denitrification device is a commonly used water treatment device. The denitrification device is composed of a water pump structure, a jet structure and a water tank structure. The jet structure is connected to the water pump structure and the water tank structure respectively; the water pump structure is used to pump water with high nitrogen content (i.e., water to be treated) into the jet structure, and the jet structure is used to introduce air and mix the water to be treated to form water with low nitrogen content (i.e., mixed water). The oxygen content in the mixed water is high and the nitrogen content is low, thereby reducing the nitrogen content in the mixed water to remove the nitrogen in the water. The water tank structure is used to buffer the mixed water.

[0003] In the prior art, the traditional jet structure includes a structural cylinder, a first baffle and a second baffle. One end of the structural cylinder is provided with a water inlet end for connecting to a water pump structure, and the other end of the structural cylinder is provided with a water outlet end for connecting to a water tank structure. The first baffle and the second baffle are sequentially arranged between the water inlet end and the water outlet end. The first baffle and the second baffle are both connected to the structural cylinder to form a mixing chamber together. The first baffle is provided with a water inlet hole, which is respectively connected to the water inlet end and the mixing chamber. The second baffle is provided with a water outlet hole, which is respectively connected to the water outlet end and the mixing chamber. The structural cylinder is provided with an air inlet hole, which is connected to the mixing chamber, such as the Chinese patent No. CN201921619953.0.

[0004] However, since the water inlet hole and the air inlet hole are both connected to the mixing chamber, one end of the structural cylinder is provided with a water inlet end for connecting to the water pump structure, so that the water pump structure is used to pump the water to be treated into the structural cylinder along the water inlet end, and the water inlet end is connected to the water inlet hole, so that the water to be treated flows into the mixing chamber along the water inlet hole, and the air inlet hole is used to introduce air into the mixing chamber, and the air and the water to be treated are mixed in the mixing chamber, so that the water to be treated is mixed with the air once when flowing through the mixing chamber, that is, the air and the water to be treated are mixed once in the mixing chamber to form mixed water, so that the number of times the air and the water to be treated are mixed in the mixing chamber is small, so that the number of times the oxygen in the air contacts with water is small, so that the degree of combination of oxygen and water is low, resulting in a low content of oxygen dissolved in water in a single contact with water, so that the oxygen content in the mixed water of a single mixing treatment is low, which is not conducive to the removal of nitrogen in the water, and thus the jet structure has a poor effect on removing nitrogen from the water. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a jet structure and a denitrification device with better removal effect on nitrogen in water.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A jet structure is provided with a water inlet, a mixing chamber and a drain outlet, wherein the mixing chamber is communicated with the water inlet and the drain outlet respectively, the water inlet is used to communicate with a water pump structure, and the drain outlet is used to communicate with a water tank structure.

[0008] The jet structure is further provided with a first air guide groove and a first air guide channel which are connected to each other. The inner wall of the mixing chamber is provided with a plurality of air inlet hole groups. The first air guide channel is connected to the mixing chamber through each of the air inlet hole groups.

[0009] In one embodiment, the axis line of the water inlet, the axis line of the mixing chamber and the axis line of the drain outlet are arranged on the same line.

[0010] In one embodiment, a plurality of the air inlet hole groups are arranged at intervals along the axial direction of the mixing chamber.

[0011] In one embodiment, each of the air inlet hole groups includes a plurality of air inlet holes, and the plurality of air inlet holes are arranged around and spaced apart along the inner wall of the mixing chamber, so that the first air guide channel is connected to the mixing chamber through each of the air inlet holes.

[0012] In one embodiment, the inner wall of the mixing chamber is further provided with a plurality of mixing grooves, and the plurality of mixing grooves are arranged at intervals around the axis of the mixing chamber to form a spiral air guide channel, and the spiral air guide channel is respectively connected to the mixing chamber and each of the air inlet holes.

[0013] In one of the embodiments, a plurality of air inlet grooves are provided around the end side of the spiral air guide channel, the plurality of air inlet grooves are arranged at intervals, each of the air inlet grooves is connected to the mixing chamber, and at least one air inlet groove is provided between two adjacent air inlet holes, so that the spiral air guide channel is connected to the corresponding air inlet hole through at least one of the air inlet grooves.

[0014] In one embodiment, each of the mixing grooves includes a first curved groove and a second curved groove that are connected to each other, the first curved groove and the second curved groove are both connected to the mixing chamber, and the second curved groove is connected to the corresponding air intake groove; the cross-sectional diameter of the first curved groove is greater than or equal to the cross-sectional diameter of the second curved groove.

[0015] In one embodiment, the inner wall profile of each of the first curved surface grooves is in a spherical shape; and / or the inner wall profile of each of the second curved surface grooves is in a cylindrical shape.

[0016] In one embodiment, the cross section of the first air guiding channel is in the shape of a circular ring.

[0017] A denitrification device comprises a water pump structure, a water tank structure and the jet structure described in any of the above embodiments, wherein the two ends of the jet structure are respectively connected to the water pump structure and the water tank structure, the water inlet is connected to the water pump structure, and the drain outlet is connected to the water tank structure.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] 1. Since the water inlet is used to communicate with the water pump structure, so that the water pump structure is used to pump the water to be treated into the mixing chamber along the water inlet, the first air guide groove is used to introduce ozone, the first air guide groove is connected with the first air guide channel, and the inner wall of the mixing chamber is provided with a plurality of air inlet hole groups, and the first air guide channel is connected with the mixing chamber through each air inlet hole group, so that ozone enters the mixing chamber along the first air guide channel and each air inlet hole group, and the ozone and the water to be treated are mixed and treated in the mixing chamber;

[0020] 2. The inner wall of the mixing chamber is provided with a plurality of air inlet hole groups, each of which is used to introduce ozone into the mixing chamber. The water to be treated flows through the plurality of air inlet hole groups in sequence along the mixing chamber, so that the water to be treated is mixed with the ozone introduced by the plurality of air inlet hole groups in sequence during the process of flowing through the mixing chamber, so that the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber; therefore, the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber, that is, the ozone and the water to be treated are mixed multiple times in the mixing chamber to form mixed water, so that the number of times the ozone and the water to be treated are mixed in the mixing chamber is large, so that the number of times the ozone contacts the water is large, and ozone is easily soluble in water, so that the combination between ozone and water is relatively close, so that the degree of combination between ozone and water is relatively high, so that the content of ozone dissolved in water after multiple contacts with water is relatively high, so that the ozone content in the mixed water after multiple mixing treatments is relatively high, so that the ozone can better oxidize the nitrogen in the water, which is beneficial to the removal of nitrogen in the water, and thus the jet structure has a better effect on the removal of nitrogen in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic structural diagram of a jet structure according to an embodiment;

[0023] Figure 2 for Figure 1 A schematic structural diagram of the jet structure from another perspective shown;

[0024] Figure 3 for Figure 2 The AA line cross-sectional view of the jet structure shown;

[0025] Figure 4 for Figure 1 A schematic diagram of the three-dimensional exploded structure of the jet structure shown;

[0026] Figure 5 It is a schematic structural diagram of a denitrification device according to an embodiment. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present invention provides a jet structure, which is provided with a water inlet, a mixing chamber and a drain outlet, wherein the mixing chamber is respectively connected with the water inlet and the drain outlet, the water inlet is used to be connected with a water pump structure, and the drain outlet is used to be connected with a water tank structure.

[0031] Furthermore, the jet structure is also provided with a first air guide groove and a first air guide channel which are connected to each other, and the inner wall of the mixing chamber is provided with a plurality of air inlet hole groups, and the first air guide channel is connected with the mixing chamber through each air inlet hole group.

[0032] The jet structure described above has a water inlet that is connected to a water pump structure, so that the water pump structure is used to pump the water to be treated into the mixing chamber along the water inlet, the first air guide groove is used to introduce ozone, the first air guide groove is connected to the first air guide channel, and the inner wall of the mixing chamber is provided with a plurality of air inlet hole groups, and the first air guide channel is connected to the mixing chamber through each air inlet hole group, so that ozone enters the mixing chamber along the first air guide channel and each air inlet hole group, and the ozone and the water to be treated are mixed and treated in the mixing chamber;

[0033] The inner wall of the mixing chamber is provided with a plurality of air inlet hole groups, each of which is used to introduce ozone into the mixing chamber. The water to be treated flows through the plurality of air inlet hole groups in sequence along the mixing chamber, so that the water to be treated is mixed with the ozone introduced by the plurality of air inlet hole groups in sequence during the process of flowing through the mixing chamber, so that the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber; therefore, the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber, that is, the ozone and the water to be treated are mixed multiple times in the mixing chamber to form mixed water, so that the number of times the ozone and the water to be treated are mixed in the mixing chamber is large, so that the number of times the ozone contacts the water is large, and ozone is easily soluble in water, so that the combination between ozone and water is relatively tight, so that the degree of combination between ozone and water is relatively high, so that the content of ozone dissolved in water after multiple contacts with water is relatively high, so that the ozone content in the mixed water after multiple mixing treatments is relatively high, so that the ozone can better oxidize the nitrogen in the water, which is beneficial to the removal of nitrogen in the water, and thus the jet structure has a better effect on the removal of nitrogen in the water.

[0034] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0035] like Figures 1 to 4 As shown, the jet structure 10a of one embodiment is provided with a water inlet 110, a mixing chamber 221 and a drain 310. The mixing chamber 221 is respectively connected to the water inlet 110 and the drain 310. The water inlet 110 is used to communicate with the water pump structure 20a, and the drain 310 is used to communicate with the water tank structure 30a. In this embodiment, the two ends of the jet structure 10a are respectively used to connect with the water pump structure 20a and the water tank structure 30a.

[0036] Furthermore, the jet structure 10a is further provided with a first air guide groove 211 and a first air guide channel 212 which are connected to each other. The inner wall of the mixing chamber 221 is provided with a plurality of air inlet hole groups 2211 . The first air guide channel 212 is connected to the mixing chamber 221 through each air inlet hole group 2211 .

[0037] In this embodiment, the first air guide groove 211 is used to connect with an external ozone device (not shown), so that the first air guide groove 211 is used to communicate with the external ozone device, so that the first air guide groove 211 is used to introduce ozone. The water inlet 110 is used to communicate with the water pump structure 20a, so that the water pump structure 20a is used to pump the water to be treated into the mixing chamber 221 along the water inlet 110.

[0038] The jet structure 10a described above, since the water inlet 110 is used to communicate with the water pump structure 20a, so that the water pump structure 20a is used to pump the water to be treated into the mixing chamber 221 along the water inlet 110, the first air guide groove 211 is used to introduce ozone, the first air guide groove 211 is communicated with the first air guide channel 212, and the inner wall of the mixing chamber 221 is provided with a plurality of air inlet hole groups 2211, and the first air guide channel 212 is communicated with the mixing chamber 221 through each air inlet hole group 2211, so that ozone enters the mixing chamber 221 along the first air guide channel 212 and each air inlet hole group 2211, and the ozone and the water to be treated are mixed and treated in the mixing chamber 221;

[0039] The inner wall of the mixing chamber 221 is provided with a plurality of air inlet hole groups 2211, each of which is used to introduce ozone into the mixing chamber 221. The water to be treated flows through the plurality of air inlet hole groups 2211 in sequence along the mixing chamber 221, so that the water to be treated is mixed with the ozone introduced by the plurality of air inlet hole groups 2211 in sequence during the process of flowing through the mixing chamber 221, so that the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber 221; therefore, the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber 221, that is, the ozone and the water to be treated are mixed in the mixing chamber 221. Multiple mixing treatments form mixed water, so that ozone and the water to be treated are mixed and treated for more times in the mixing chamber 221, so that the number of times ozone and water are in contact is more. Ozone is easily soluble in water, so that the combination between ozone and water is tighter, so that the degree of combination between ozone and water is higher, so that the content of ozone dissolved in water after multiple contacts and combinations with water is higher, and the ozone content in the mixed water after multiple mixing treatments is higher, so that ozone can better oxidize nitrogen in water, which is beneficial to the removal of nitrogen in water, and then the jet structure 10a has a better effect on removing nitrogen from water.

[0040] Furthermore, when the water to be treated passes through the mixing chamber 221, the water to be treated can bring ozone into the water and mix with each other. After the water to be treated and the ozone are mixed with each other, the nano-scale ozone content in the mixed water can reach more than 20 mg / L; since ozone exists in the water in the form of nano-scale bubbles, ozone has a strong oxidizing ability, so that ozone can oxidize various forms of nitrogen in the water, such as ammonia nitrogen, nitrite, nitrate and other forms of nitrogen.

[0041] like Figures 1 to 3As shown, in one embodiment, the axis line of the water inlet 110, the axis line of the mixing chamber 221 and the axis line of the drain outlet 310 are arranged in a colinear manner, so that the water inlet 110, the mixing chamber 221 and the drain outlet 310 are sequentially connected along the axial direction of the mixing chamber 221, so that the water to be treated can flow smoothly into the mixing chamber 221, so that the ozone and the water to be treated can be better mixed in the mixing chamber 221.

[0042] like Figure 4 As shown, in one embodiment, a plurality of air inlet hole groups 2211 are arranged at intervals along the axial direction of the mixing chamber 221, so that the water to be treated is mixed with ozone multiple times when flowing through the mixing chamber 221, so that the ozone content in the mixed water treated by multiple mixing is higher.

[0043] like Figure 4 As shown, in one embodiment, each air inlet hole group 2211 includes a plurality of air inlet holes 2211a, and the plurality of air inlet holes 2211a are arranged around and spaced along the inner wall of the mixing chamber 221, so that the first air guide channel 212 is connected to the mixing chamber 221 through each air inlet hole 2211a. In this embodiment, ozone enters the mixing chamber 221 along the first air guide channel 212 and each air inlet hole 2211a, so that ozone and the water to be treated are mixed and treated in the mixing chamber 221, and the plurality of air inlet holes 2211a are arranged around and spaced along the inner wall of the mixing chamber 221, so that the ozone and the water to be treated can be quickly and evenly mixed in the mixing chamber 221.

[0044] like Figure 3 to Figure 4 As shown, in one embodiment, the inner wall of the mixing chamber 221 is further provided with a plurality of mixing grooves 2212, and the plurality of mixing grooves 2212 are arranged around the axis of the mixing chamber 221 to form a spiral air guide channel 222, and the spiral air guide channel 222 is respectively connected to the mixing chamber 221 and each air inlet hole 2211a. In this embodiment, ozone enters each mixing groove 2212 along each air inlet hole 2211a, so that ozone and the water to be treated are mixed and treated in each mixing groove 2212, and the inner wall of the mixing chamber 221 is provided with a plurality of mixing grooves 2212, so that ozone and the water to be treated can be quickly and evenly mixed in the mixing chamber 221.

[0045] like Figure 3 to Figure 4As shown, in one embodiment, a plurality of air inlet grooves 2221 are provided around the end side of the spiral air guide channel 222, and the plurality of air inlet grooves 2221 are arranged at intervals, and each air inlet groove 2221 is connected to the mixing chamber 221, and at least one air inlet groove 2221 is provided between two adjacent air inlet holes 2211a, so that the spiral air guide channel 222 is connected to the corresponding air inlet hole 2211a through at least one air inlet groove 2221. In this embodiment, ozone enters the corresponding mixing groove 2212 along each air inlet hole 2211a and the corresponding air inlet groove 2221 in turn, so that ozone and the water to be treated are mixed and treated in each mixing groove 2212, and a plurality of mixing grooves 2212 are provided around the inner wall of the mixing chamber 221, so that ozone and the water to be treated can be quickly and evenly mixed in the mixing chamber 221.

[0046] like Figure 3 to Figure 4 As shown, in one embodiment, each mixing groove 2212 includes a first curved groove 2212a and a second curved groove 2212b that are connected to each other, the first curved groove 2212a and the second curved groove 2212b are both connected to the mixing chamber 221, and the second curved groove 2212b is connected to the corresponding air inlet groove 2221; the cross-sectional diameter of the first curved groove 2212a is greater than or equal to the cross-sectional diameter of the second curved groove 2212b. In this embodiment, the extension direction of each mixing groove 2212 is parallel to the axial direction of the mixing chamber 221, so that the flow direction of each mixing groove 2212 is consistent with the flow direction of the mixing chamber 221, avoiding turbulence of the water to be treated in the mixing chamber 221, so that the ozone and the water to be treated can be better mixed in the mixing chamber 221.

[0047] like Figure 3 to Figure 4 As shown, in one embodiment, the inner wall profile of each first curved groove 2212 a is spherical to increase the contact area of ​​each first curved groove 2212 a so that ozone and the water to be treated can be better mixed in the mixing chamber 221 .

[0048] In one embodiment, the inner wall profile of each second curved groove 2212 b is in the shape of a cylindrical curved surface, so as to increase the contact area of ​​each second curved groove 2212 b , so that ozone and the water to be treated can be better mixed in the mixing chamber 221 .

[0049] like Figure 4As shown, in one embodiment, the cross section of the first air guide channel 212 is in a circular ring shape. In this embodiment, the first air guide channel 212 is connected to the mixing chamber 221 through each air inlet hole group 2211, so that the first air guide channel 212 is connected to the mixing chamber 221 through each air inlet hole 2211a, so that each air inlet hole 2211a is used to introduce ozone into the mixing chamber 221, so that the ozone and the water to be treated can be well mixed in the mixing chamber 221.

[0050] like Figure 3 As shown, in one embodiment, the cross-sectional area of ​​the water inlet 110 and the cross-sectional area of ​​the drain outlet 310 are both larger than the cross-sectional area of ​​the mixing chamber 221, so that the negative pressure is better formed in the mixing chamber 221, thereby making the ozone entering the mixing chamber 221 through the first air guide groove 211 better mixed with the water. In this embodiment, the cross-sectional area is the area of ​​the end face after the cross section is cut. The cross section is perpendicular to Figure 3 The plane of the section shown.

[0051] like Figure 3 As shown, in one embodiment, the cross-sections of the water inlet 110, the mixing chamber 221 and the drain outlet 310 are all circular, which reduces the processing difficulty of the water inlet 110, the mixing chamber 221 and the drain outlet 310, and at the same time better mixes ozone in the water.

[0052] like Figures 1 to 4 As shown, in one embodiment, the jet structure 10a includes a water inlet section 100, a mixing section 200 and a drainage section 300 connected in sequence, the water inlet section 100 is used to connect with the water pump structure 20a, the water inlet 110 is used to communicate with the water pump structure 20a, the drainage section 300 is used to connect with the trough structure 30a, and the drainage outlet 310 is used to communicate with the trough structure 30a; the water inlet 110 is opened in the water inlet section 100, the mixing chamber 221, the first air guide groove 211 and the first air guide channel 212 are all opened in the mixing section 200, and the drainage outlet 310 is opened in the drainage section 300.

[0053] like Figure 3 to Figure 4 As shown, in one embodiment, the mixing section 200 includes an outer section body 210 and an inner section body 220, the first air guide groove 211 and the first air guide channel 212 are both opened in the outer section body 210, the mixing chamber 221 is opened in the inner section body 220, the inner section body 220 is located in the first air guide channel 212 and is nested with the outer section body 210, the two ends of the outer section body 210 are respectively connected to the water inlet section 100 and the drainage section 300, and the two ends of the inner section body 220 are respectively connected to the water inlet section 100 and the drainage section 300.

[0054] like Figure 3As shown, in one embodiment, the axis of the outer segment 210 and the axis of the inner segment 220 are arranged on the same line.

[0055] like Figure 5 As shown, the present disclosure also provides a denitrification device 10, including a water pump structure 20a, a water tank structure 30a and the jet structure 10a described in any of the above embodiments, the two ends of the jet structure 10a are respectively connected to the water pump structure 20a and the water tank structure 30a, the water inlet 110 is connected to the water pump structure 20a, and the drain outlet 310 is connected to the water tank structure 30a.

[0056] Compared with the prior art, the present invention has at least the following advantages:

[0057] 1. Since the water inlet 110 is used to communicate with the water pump structure 20a, so that the water pump structure 20a is used to pump the water to be treated into the mixing chamber 221 along the water inlet 110, the first air guide groove 211 is used to introduce ozone, the first air guide groove 211 is connected with the first air guide channel 212, and the inner wall of the mixing chamber 221 is provided with a plurality of air inlet hole groups 2211, and the first air guide channel 212 is connected with the mixing chamber 221 through each air inlet hole group 2211, so that ozone enters the mixing chamber 221 along the first air guide channel 212 and each air inlet hole group 2211, and the ozone and the water to be treated are mixed and treated in the mixing chamber 221;

[0058] 2. The inner wall of the mixing chamber 221 is provided with a plurality of air inlet groups 2211, each of which is used to introduce ozone into the mixing chamber 221. The water to be treated flows through the plurality of air inlet groups 2211 in sequence along the mixing chamber 221, so that the water to be treated is mixed with the ozone introduced by the plurality of air inlet groups 2211 in sequence during the process of flowing through the mixing chamber 221, so that the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber 221; therefore, the water to be treated is mixed with the ozone multiple times when flowing through the mixing chamber 221, that is, the ozone and the water to be treated are mixed in the mixing chamber 221. Multiple mixing treatments are performed to form mixed water, so that ozone and the water to be treated are mixed for more times in the mixing chamber 221, so that the number of times ozone and water are in contact is more, and ozone is easily soluble in water, so that the combination between ozone and water is tighter, thereby making the degree of combination between ozone and water higher, so that the content of ozone dissolved in water after multiple contacts and combinations with water is higher, and the ozone content in the mixed water after multiple mixing treatments is higher, so that ozone can better oxidize nitrogen in water, which is beneficial to the removal of nitrogen in water, and then the jet structure 10a has a better effect on the removal of nitrogen in water.

[0059] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A jet structure, having a water inlet, a mixing chamber and a drain, wherein the mixing chamber is connected to the water inlet and the drain respectively, the water inlet is used to communicate with a water pump structure, and the drain is used to communicate with a water tank structure, characterized in that: The jet structure is further provided with a first air guide groove and a first air guide channel which are connected to each other. The inner wall of the mixing chamber is provided with a plurality of air inlet hole groups. The first air guide channel is connected to the mixing chamber through each of the air inlet hole groups.

2. The jet structure according to claim 1, characterized in that: The axis center line of the water inlet, the axis center line of the mixing chamber and the axis center line of the drain outlet are arranged on the same line.

3. The jet structure according to claim 1, characterized in that: The plurality of air inlet hole groups are arranged at intervals along the axial direction of the mixing chamber.

4. The jet structure according to claim 3, characterized in that: Each of the air inlet hole groups includes a plurality of air inlet holes, and the plurality of air inlet holes are arranged around and spaced apart along the inner wall of the mixing chamber, so that the first air guide channel is connected to the mixing chamber through each of the air inlet holes.

5. The jet structure according to claim 4, characterized in that: The inner wall of the mixing chamber is also provided with a plurality of mixing grooves, which are arranged at intervals around the axis of the mixing chamber to form a spiral air guide channel, and the spiral air guide channel is respectively connected to the mixing chamber and each of the air inlet holes.

6. The jet structure according to claim 5, characterized in that: A plurality of air intake grooves are provided around the end side of the spiral air guide channel, and the plurality of air intake grooves are arranged at intervals. Each of the air intake grooves is connected to the mixing chamber, and at least one air intake groove is provided between two adjacent air intake holes, so that the spiral air guide channel is connected to the corresponding air intake hole through at least one of the air intake grooves.

7. The jet structure according to claim 6, characterized in that: Each of the mixing grooves includes a first curved groove and a second curved groove that are connected to each other. The first curved groove and the second curved groove are both connected to the mixing chamber, and the second curved groove is connected to the corresponding air intake groove; the cross-sectional diameter of the first curved groove is greater than or equal to the cross-sectional diameter of the second curved groove.

8. The jet structure according to claim 7, characterized in that: The inner wall profile of each of the first curved surface grooves is in a spherical shape; and / or the inner wall profile of each of the second curved surface grooves is in a cylindrical shape.

9. The jet structure according to claim 1, characterized in that: The cross section of the first air guiding channel is in a circular ring shape.

10. A denitrification device, characterized in that: It comprises a water pump structure, a water tank structure and the jet structure described in any one of claims 1 to 9, wherein the two ends of the jet structure are respectively connected to the water pump structure and the water tank structure, the water inlet is connected to the water pump structure, and the drain outlet is connected to the water tank structure.

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