CN218671122U - A nozzle connector - Google Patents

Abstract

The utility model discloses a nozzle joint, which comprises an integrally formed stepped fluid section and a diffuser baffle, the interior of the stepped fluid section is a hollow axial through hole; the stepped fluid section includes a flow diversion section, the diffuser The flow baffle is located at the end of the diversion section; the diversion section is provided with a diffuse flow hole passing through in the radial direction; the diffuse flow hole is vertically connected with the axial through hole; the high-speed fluid passes through the axial through hole and the diffuse flow hole In the short process range, the flow direction of the high-velocity fluid can be changed and evenly divided, which can avoid the high-speed fluid from directly flushing the filter membrane in the coolant impurity filter device, effectively alleviate and reduce the impact on the filter membrane, and greatly extend the life of the filter membrane. Long service life; the nozzle joint of the utility model has a simple structure and is easy to use.

Description

A nozzle connector

technical field

The utility model belongs to the technical field of analysis and measurement, and in particular relates to a nozzle joint for alleviating the impact force of high-speed fluid for the analysis and measurement of impurities in reactor coolant.

Background technique

During the recycling process of nuclear reactor coolant, a certain amount of solid impurities will inevitably be produced. In the existing test system, in order to analyze and measure the impurity content in the coolant, the nozzle joint of the hollow shaft structure is generally used to inject the coolant The impurity filtering device is connected to the reactor coolant circulation system. Due to the high pressure of the pipeline of the reactor coolant circulation system, when the coolant is transported to the coolant impurity filtering device, the instantaneous flow rate is often extremely high. In addition, the nozzle and the coolant impurity filter The distance between the filter membranes in the device is relatively close, which is easy to cause impact damage to the filter membranes.

Utility model content

In view of the above-mentioned technical problems existing in the prior art, the purpose of this utility model is to provide a nozzle joint that has a protective effect on the filter membrane, is not easy to be damaged, and has a long service life and can effectively relieve the impact force of high-speed fluid.

In order to achieve the purpose of the above utility model, the technical solution adopted by the utility model is as follows: a nozzle joint, including an integrally formed stepped fluid section and a diffuser baffle, and the inside of the stepped fluid section is a hollow axial through hole; The stepped fluid section includes a flow diversion section, and the diffuser baffle is located at the end of the diversion section; the diversion section is provided with diffuser holes passing through in the radial direction; the diffuser holes communicate vertically with the axial through hole.

Further, the middle part of the diffusion hole communicates with the outlet end of the axial through hole, and the diffusion hole cooperates with the diffusion baffle.

Further, the stepped fluid section further includes a pagoda section, an installation clamping section, and an external thread section that are connected in sequence, and the flow diversion section is connected to the external thread section.

Further, the length of the axial through hole is equal to the sum of the lengths of the pagoda section, the installation clamping section, the external thread section, and the diffuser baffle.

Further, the width of the diffusion hole is not smaller than the diameter of the axial through hole, and not larger than the diameter of the flow splitting section.

Further, the diameter of the diffusion baffle is not smaller than the diameter of the diversion section.

Further, the pagoda section is composed of five identical conical sections and one cylindrical section, and the surface of the installation clamping section is in the shape of an outer hexagon.

Further, the major diameter of the external thread section and the diameter of the cylindrical section are smaller than the diameter of the outer hexagonal inscribed circle of the mounting clamping section.

Further, the outer diameter of the large end of the conical joint is equal to the diameter of the cylindrical joint.

Further, the diffusion baffle is disc-shaped.

The beneficial effect brought by the technical solution of the utility model is that a nozzle joint includes an integrally formed stepped fluid section and a diffuser baffle, and the interior of the stepped fluid section is a hollow axial through hole; the stepped The fluid section includes a diversion section, and the diffuser baffle is located at the end of the diversion section; a diffuser hole penetrates in the radial direction inside the diverter section; the diffuser hole communicates vertically with the axial through hole. The coolant in the reactor coolant circulation system enters the diffuser hole along the axial through hole and then enters the impurity filter device after passing through the diffuser baffle; It is connected to the outlet end of the through hole, and the diffuser hole cooperates with the diffuser baffle, which can change the flow direction of the high-flow rate coolant fluid sprayed from the outlet end of the axial through hole, and make the fluid evenly dispersed into two streams along the diffuse flow The two outlets of the hole flow out, that is, to achieve uniform flow splitting, so that the high-speed fluid can be prevented from directly flushing the filter membrane in the coolant impurity filter device, thereby effectively alleviating and reducing the impact on the filter membrane, and greatly extending the service life of the filter membrane ; The utility model is made of a cylinder as a whole, which saves the mechanical connection and assembly between the internal sections, is easy to use, and is easy to ensure the overall rigidity.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the structure of the nozzle joint of the embodiment of the utility model;

Fig. 2 is a schematic side view of the nozzle joint structure of the embodiment of the present invention;

Fig. 3 is a top view of the nozzle joint structure of the embodiment of the utility model.

Among them, pagoda section 1, conical section 1-1, cylindrical section 1-2, installation and clamping section 2, external thread section 3, diversion section 4, diffuse flow hole 4-1, diffuse flow baffle 5, axial through hole 6.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Referring to accompanying drawing 1, a nozzle joint includes an integrally formed stepped fluid section and a diffuser baffle 5, the interior of the stepped fluid section is a hollow axial through hole 6; the stepped fluid section includes a diverter section 4, The diffuser baffle 5 is located at the end of the diverter section 4; the diverter section 4 is provided with a diffuser hole 4-1 passing through in the radial direction; the diffuser hole 4-1 is perpendicular to the axial through hole 6 connected. The coolant in the reactor coolant circulation system flows to the impurity filter device along the axial through hole 6, and cooperates with the diffuse flow hole 4-1 passing through the radial direction in the flow diversion section 4 to realize uniform flow distribution. The high-velocity fluid sprayed to the outlet of the through hole 6 changes the flow direction, avoiding the high-speed coolant directly hitting the filter membrane in the impurity filter device, thereby effectively alleviating and reducing the impact on the filter membrane, and greatly extending the service life of the filter membrane; The fluid section and the diffuser baffle 5 are integrally processed by a cylinder, which saves the mechanical connection and assembly between the sections, which is convenient to ensure the overall rigidity. Moreover, the nozzle joint of the embodiment of the utility model has a simple structure, is easy to process, and is widely used, and can also be screwed with other devices that need to be filtered.

Preferably, the middle part of the diffuser hole 4 - 1 communicates with the outlet end of the axial through hole 6 , and the diffuser hole 4 - 1 cooperates with the diffuser baffle 5 . Realize uniform flow splitting, change the coolant flow direction, avoid high-speed coolant fluid directly hitting the filter membrane in the coolant impurity filter device, thereby effectively alleviating and reducing the impact on the filter membrane, and greatly extending the service life of the filter membrane.

Preferably, the stepped fluid section further includes a pagoda section 1 , an installation clamping section 2 , and an external thread section 3 which are sequentially connected, and the flow diversion section 4 is connected to the external thread section 3 . The external thread section 3 can be quickly connected to the coolant impurity filtering device; the pagoda section 1 is convenient for plugging in with a hose, and the installation clamping section 2 is convenient for tool clamping during installation.

Preferably, the length of the axial through hole 6 is equal to the sum of the lengths of the pagoda section 1 , the installation clamping section 2 , the external thread section 3 , and the diffuser baffle 5 . Ensure the flow channel of the axial through hole 6 is unimpeded.

Preferably, the width of the diffusion hole 4 - 1 is not smaller than the diameter of the axial through hole 6 , and not larger than the diameter of the flow splitting section 4 . The width of the diffuser hole 4-1 ensures that the fluid at the intersection of the diffuser hole 4-1 and the axial through hole 6 can flow smoothly, and its width is not greater than the diameter of the diversion section 4, ensuring that the integral entity of the stepped fluid section is connected structure.

Preferably, the diffuser baffle 6 is disc-shaped, and the diameter of the diffuser baffle 6 is not smaller than the diameter of the splitter section 4 . The rigidity of the overall structure is guaranteed, and the disc-shaped structure can further buffer the fluid flow rate and reduce the impact on the filter membrane.

Referring to accompanying drawings 2 and 3, preferably, the pagoda section 1 is composed of five identical conical sections 1-1 and one cylindrical section 1-2, and the surface of the mounting clamping section 2 is in an outer hexagonal shape. The flow velocity of the high-speed fluid is buffered by the change of the inner diameter of the cone and the cylinder.

Preferably, the major thread diameter of the external thread section 3 and the diameter of the cylindrical section 1-2 are smaller than the diameter of the outer hexagonal inscribed circle of the mounting clamping section 2 . It is convenient for the tool to be clamped at the installation clamping section 2 .

Preferably, the outer diameter of the large end of the conical section 1-1 is equal to the diameter of the cylindrical section 1-2. It is convenient for the overall processing and forming of the cylinder.

In actual use, first wind the external thread section 3 with a raw material tape of a certain thickness and screw it together with the connecting flange in the impurity filtering device to ensure that the utility model is coaxially installed with the connecting flange of the impurity filtering device, and The diffuser baffle 5 should expose the large plane inside the connecting flange; then plug the pagoda section 1 and fix the hose connected with the reactor coolant circulation system.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the present utility model fall within the scope of the claims of the utility model and equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims (9)

1. A nozzle joint, characterized by: comprising an integrally formed stepped fluid section and a diffuser baffle (5), the inside of the stepped fluid section is a hollow axial through hole (6); the stepped fluid section It includes a diversion section (4), the diffuser baffle (5) is located at the end of the diverter section (4); the diverter section (4) is provided with diffuser holes (4-1) that penetrate in the radial direction; the The diffusion hole (4-1) is vertically connected with the axial through hole (6). 2. A nozzle joint according to claim 1, characterized in that: the middle part of the diffusion hole (4-1) communicates with the outlet end of the axial through hole (6), and the diffusion hole (4-1) -1) Cooperate with the diffuser baffle (5). 3. A nozzle joint according to claim 1, characterized in that: the width of the diffuser hole (4-1) is not smaller than the diameter of the axial through hole (6), not larger than the diameter of the splitter section (4) diameter. 4. A nozzle joint according to claim 1, characterized in that: the diffuser baffle (5) is disc-shaped, and the diameter of the diffuser baffle (5) is not smaller than the diameter of the diverter section (4) . 5. A nozzle joint according to claim 1, characterized in that: the stepped fluid section also includes a pagoda section (1), an installation clamping section (2), and an external thread section (3) connected in sequence, the The split section (4) is connected with the external thread section (3). 6. A nozzle joint according to claim 5, characterized in that: the length of the axial through hole (6) is equal to the pagoda section (1), the installation clamping section (2), and the external thread section (3) , the sum of the lengths of the diffusion baffles (5). 7. A nozzle joint according to claim 5, characterized in that: the pagoda section (1) is composed of five identical conical sections (1-1) and one cylindrical section (1-2), The surface of the mounting clamping section (2) is in the shape of an outer hexagon. 8. A nozzle joint according to claim 5, characterized in that: the major diameter of the external thread section (3) and the diameter of the cylindrical section (1-2) are both smaller than the outer diameter of the mounting and clamping section (2). Hexagonal inscribed circle diameter. 9. A nozzle joint according to claim 7, characterized in that: the outer diameter of the big end of the conical section (1-1) is equal to the diameter of the cylindrical section (1-2).

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