Nozzle assembly of a temperature and pressure reduction device

By using the combination of notches, connecting pipes, conveying pipes, spraying pipes and fixed covers in the temperature and pressure reduction device, combined with the design of rotating blocks and gears, the problems of small spray atomization amount and inability to adjust the flow rate are solved, and the problem of insufficient adjustment of the nozzle spray atomization is achieved. It has better atomization effect and convenient installation and maintenance.

CN112536162BActive Publication Date: 2024-12-13JIANGSU YANFU POWER STATION VALVE AUXILIARY MASCH MFG CO LTD
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Patent Information

Application Number
CN202011353389.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-11-27
Publication Date
2024-12-13
Estimated Expiration
2040-11-27

AI Technical Summary

Technical Problem

The nozzle spray atomization amount of existing temperature and pressure reducing devices is small, the flow rate cannot be adjusted as needed, and the installation is complicated, making it inconvenient for later maintenance.

Method used

Through the coordination of notches, connecting pipes, conveying pipes, spraying pipes, fixing covers and spray ports, combined with the coordination of rotating blocks, rotating rods, gears and limiting mechanisms, the adjustment of water flow rate and installation are simplified, making it easier to maintain.

Benefits of technology

It improves the atomization effect, realizes the adjustability of water flow rate, facilitates installation and post-maintenance, and extends the service life of the fixed cover.

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Abstract

The invention discloses a nozzle assembly of a temperature reduction and pressure reduction device, comprising a connecting block and a temperature reduction and pressure reduction pipeline. A notch is provided on one side of the connecting block, a connecting pipe is connected to one side of the notch, a fixed pipe is fixedly installed on one side of the connecting block, one side of the connecting pipe passes through the connecting block and extends to the connecting pipe and the inner cavity of the fixed pipe. Through the setting of the notch, the invention allows cooling water to enter the interior of the connecting pipe through the notch, and through the operation of the limiting mechanism, the rotation of the cylinder is released, thereby adjusting the angle of the through hole, and completing the control of the water flow size. The cooling water passes through the fixing of the rotating block of the delivery pipe, and the rotating block is rotated. The rotating block drives the rotating rod to rotate, the rotating rod drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the rotating rod to enter the spray pipe and finally spray out through the spray port. The estimation mechanism makes installation simple, achieves a better atomization effect, can adjust the water flow rate, and is convenient for disassembly and later maintenance.
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Description

Technical Field

[0001] The invention belongs to the technical field of temperature reduction and pressure reduction devices, and in particular relates to a nozzle assembly of a temperature reduction and pressure reduction device. Background Art

[0002] The temperature and pressure reduction device is a steam thermal energy parameter (pressure, temperature) conversion device and energy-saving device that utilizes waste heat, which is widely used in thermal energy engineering in modern industry such as cogeneration, centralized heating (or steam supply) and light industry, electric power, chemical industry, textile and other enterprises. Through this device, the steam parameters provided by the user are reduced to the appropriate temperature and pressure required by the user to meet the user's requirements, and it can fully save thermal energy and use thermal energy reasonably.

[0003] The cooling chamber of the temperature reduction and pressure reduction device sprays cooling water in a mist form into the steam in the venturi or steam pipe from nozzles of different forms to reduce the steam temperature. The atomization volume of the existing nozzle spray is small, the flow rate cannot be adjusted as needed, and the installation is complicated and inconvenient for subsequent maintenance. Therefore, we propose a nozzle assembly for the temperature reduction and pressure reduction device to solve the problems existing in the prior art. Summary of the invention

[0004] The object of the present invention is to provide a nozzle assembly for a temperature and pressure reduction device, which can achieve a better atomization effect through the mutual cooperation of a slot, a connecting pipe, a delivery pipe, a spray pipe, a fixed cover and a spray port, and the mutual cooperation of a rotating block, a rotating rod, a second gear, a first gear, a rotating cylinder and a through hole can adjust the flow rate of water, and the fixing mechanism makes the installation simple and convenient for later maintenance, so as to solve the problems in the above background technology that the atomization amount of the nozzle spray in the prior art is small, the flow rate cannot be adjusted according to needs, and the installation is complicated and inconvenient for later maintenance.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a nozzle assembly of a temperature reduction and pressure reduction device, comprising a connection block and a temperature reduction and pressure reduction pipeline, a notch is provided on one side of the connection block, a connection pipe is connected to one side of the notch, a fixed pipe is fixedly installed on one side of the connection block, one side of the connection pipe passes through the connection block and extends to the inner cavity of the fixed pipe, one side of the connection pipe is connected to a delivery pipe, one side of the delivery pipe is connected to a spray pipe, one side of the spray pipe passes through the fixed pipe and extends to the outside of the fixed pipe, a fixed cover is provided on one side of the fixed pipe, spray ports are equidistantly provided on one side of the fixed cover, and a fixed cover is provided on the outer side of the fixed cover. A protective layer is arranged, the inner cavity of the connecting pipe is connected to a rotating drum through a bearing, a through hole is opened on one side of the rotating drum, a first gear is fixedly installed on the upper end of the surface of the rotating drum, the first gear is meshed with a second gear, a rotating rod is fixedly installed on the top of the second gear, the top of the rotating rod passes through the connecting block through a bearing and extends to the outside of the connecting block, a rotating block is fixedly installed on the top of the rotating rod, a limiting mechanism is arranged on the top of the connecting block and below the rotating block, a connecting pipe is connected to one side of the temperature reduction and pressure reduction pipeline, a sleeve is fixedly installed on one side of the connecting block and located on the outside of the fixed pipe, and a fixing mechanism is arranged on one side of the sleeve

[0006] Preferably, the limiting mechanism includes a groove, which is opened at the top of the connecting block, and second springs are fixedly installed on both sides of the bottom of the inner cavity of the groove, and a support plate is fixedly installed on the top of the second spring, and a pressing column is fixedly installed on one side of the top of the support plate, and the top of the pressing column passes through the groove and extends to the outside of the groove.

[0007] Preferably, a limiting column is fixedly installed on the top of the support plate and on one side away from the pressing column, and limiting grooves are equidistantly provided on the bottom of the rotating block, and the top of the limiting column is slidably inserted into the inner cavity of the limiting groove.

[0008] Preferably, the fixing mechanism comprises a support tube, which is sleeved on the outside of the fixing tube, one side of the support tube is in contact with the inner cavity of the sleeve, and the other side of the support tube is in contact with the inner cavity of the connecting tube, and screws are fixedly installed on the top and bottom of the support tube, and a movable plate is slidably connected to the surface of the screw.

[0009] Preferably, a nut is threadedly connected to the surface of the screw rod and located on the outer side of the movable plate, and a first spring is wound around the surface of the screw rod and located on the inner side of the movable plate.

[0010] Preferably, the top and bottom of one side of the connecting tube and the supporting tube are provided with a slot, the inner cavity of the slot is slidably plugged with a protrusion, and the outer side of the protrusion is fixedly mounted to the inner side of the movable plate.

[0011] Preferably, the protective layer includes an anti-corrosion coating, the anti-corrosion coating is coated on the outer side of the fixed cover, and the outer side of the anti-corrosion coating is coated with a high temperature resistant layer.

[0012] Preferably, the thickness of the anti-corrosion coating is 1.5 μm-3 μm, and the thickness of the high temperature resistant layer is 1 μm-2.5 μm.

[0013] Preferably, the inner cavity of the fixing cover is provided with an internal thread, the surface of the fixing tube is provided with an external thread, and the fixing cover and the fixing tube are threadably connected via the internal thread and the external thread.

[0014] Preferably, a sealing gasket is provided at the penetration point between the rotating rod and the connecting block, and anti-slip grooves are equidistantly provided on the outer side of the rotating block.

[0015] Technical effects and advantages of the present invention: Compared with the prior art, the nozzle assembly of the temperature and pressure reduction device proposed by the present invention has the following advantages:

[0016] 1. The present invention sets the notch, and the cooling water enters the interior of the connecting pipe through the notch. By operating the limit mechanism, the fixing of the rotating block is released, and the rotating block is rotated, and the rotating block drives the rotating rod to rotate, the rotating rod drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the rotating drum to rotate, so as to adjust the angle of the through hole and complete the control of the water flow size. The cooling water enters the spray pipe through the delivery pipe and is finally sprayed out through the spray port. The estimation mechanism makes the installation simple, achieves a better atomization effect, and can adjust the water flow rate, which is convenient for disassembly and later maintenance.

[0017] 2. The present invention provides a fixed cover, which plays a protective role. The spray port allows water to be sprayed out from multiple locations to increase the atomization effect. The anti-corrosion coating is a corrosion-resistant ceramic coating, which is safe and environmentally friendly, can be directly coated, has a dense coating, strong wear resistance, low cost, excellent anti-corrosion performance, and is cured at room temperature, easy to spray, has a simple process, and has high insulation. The service life of the fixed cover can be increased. The high-temperature resistant layer is a high-temperature resistant coating, which has very good adhesion to the metal and is very hard. After high-temperature calcination, the strength is more obvious, and it does not crack and is resistant to high temperatures, further increasing the service life of the fixed cover.

[0018] The groove is convenient for storing the second spring. The second spring is elastic, so that the support plate can move a certain distance in the inner cavity of the groove. The pressing column is pressed, and the pressing column transmits force to the support plate. The movement of the support plate causes the second spring to contract under force. The movement of the support plate drives the limiting column to move, so that the limiting column is separated from the inner cavity of the limiting groove, thereby releasing the fixation of the rotating block. When the rotating block needs to be fixed, the pressing column is released, and the reaction of the second spring drives the support plate to move, so that the limiting column is reinserted into the inner cavity of the limiting groove, thereby fixing the rotating block.

[0019] Turn the nut, the nut rotates to move the movable plate, the movement of the movable plate causes the first spring to be forced to contract, the movable plate drives the protrusion to move, the protrusion is inserted into the inner cavity of the slot, thereby completing the fixation between the sleeve and the connecting pipe, and a sealing ring is fixedly installed between the support tube, the sleeve and the connecting pipe. When disassembly and maintenance are required, the nut is twisted and the nut rotates, so that the first spring is not forced, and the reaction force of the first spring drives the movable plate to move, and the movable plate drives the protrusion to disengage from the inner cavity of the slot, thereby releasing the fixation between the sleeve and the connecting pipe. The sealing gasket can increase the sealing between the rotating rod and the connecting block, the anti-slip groove can increase the friction of the rotating block, which is convenient for operating the rotating block, and the setting of the internal thread and the external thread is convenient for fixing and disassembling the fixed cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the enlarged area B in the middle;

[0022] Figure 3 It is a structural schematic diagram of a cross section of a rotary drum of the present invention;

[0023] Figure 4 For the present invention Figure 1 Schematic diagram of the enlarged structure of the middle A area;

[0024] Figure 5 It is a structural schematic diagram of a local cross section of the protective layer of the present invention.

[0025] In the figure: 1. connecting block; 2. notch; 3. rotating block; 4. rotating rod; 5. nut; 6. screw; 7. moving plate; 8. connecting pipe; 9. conveying pipe; 10. spraying pipe; 11. cooling and pressure reducing pipeline; 12. protective layer; 1201. anti-corrosion coating; 1202. high temperature resistant layer; 13. spraying port; 14. fixing cover; 15. fixing pipe; 16. connecting pipe; 17. sleeve; 18. rotating drum; 19. first gear; 20. second gear; 21. supporting pipe; 22. first spring; 23. slot; 24. protrusion; 25. through hole; 26. limit slot; 27. limit column; 28. second spring; 29. ​​supporting plate; 30. groove; 31. pressing column. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] The present invention provides Figure 1-5 The nozzle assembly of the temperature reduction and pressure reduction device shown in the figure comprises a connection block 1 and a temperature reduction and pressure reduction pipeline 11, a notch 2 is provided on one side of the connection block 1, a connection pipe 8 is connected to one side of the notch 2, a fixed pipe 15 is fixedly installed on one side of the connection block 1, one side of the connection pipe 8 passes through the connection block 1 and extends to the inner cavity of the fixed pipe 15, one side of the connection pipe 8 is connected to a delivery pipe 9, one side of the delivery pipe 9 is connected to a spray pipe 10, one side of the spray pipe 10 passes through the fixed pipe 15 and extends to the fixed pipe 15 On the outside of the fixed pipe 15, a fixed cover 14 is provided on one side, spray ports 13 are equidistantly provided on one side of the fixed cover 14, a protective layer 12 is provided on the outside of the fixed cover 14, the protective layer 12 includes an anti-corrosion coating 1201, the anti-corrosion coating 1201 is coated on the outside of the fixed cover 14, a high temperature resistant layer 1202 is coated on the outside of the anti-corrosion coating 1201, the thickness of the anti-corrosion coating 1201 is 1.5 μm-3 μm, and the thickness of the high temperature resistant layer 1202 is 1 μm-2.5 μm;

[0028] Through the setting of the fixed cover 14, the fixed cover 14 plays a protective role, the spray port 13 makes the water flow spray out in multiple places, and increases the atomization effect. The anti-corrosion coating 1201 is a corrosion-resistant ceramic coating, which is safe, environmentally friendly, can be directly coated, has a dense coating, strong wear resistance, low cost, excellent anti-corrosion performance, and is cured at room temperature, easy to spray, has a simple process and high insulation. The service life of the fixed cover 14 can be increased. The high-temperature resistant layer 1202 is a high-temperature resistant coating. The high-temperature resistant coating has very good adhesion to the metal and is very hard. After high-temperature calcination, the strength is more obvious, and it does not crack. It can withstand a high temperature of 1800 degrees, further increasing the service life of the fixed cover 14;

[0029] Further, the inner cavity of the connecting tube 8 is connected to the rotating drum 18 through a bearing, a through hole 25 is opened on one side of the rotating drum 18, a first gear 19 is fixedly installed on the upper end of the surface of the rotating drum 18, the first gear 19 is meshed with a second gear 20, a rotating rod 4 is fixedly installed on the top of the second gear 20, the top of the rotating rod 4 passes through the connecting block 1 through a bearing and extends to the outside of the connecting block 1, a rotating block 3 is fixedly installed on the top of the rotating rod 4, and a limiting mechanism is arranged at the top of the connecting block 1 and below the rotating block 3, and the limiting mechanism includes a groove 30. The groove 30 is provided at the top of the connecting block 1, and the second spring 28 is fixedly installed on both sides of the bottom of the inner cavity of the groove 30, and the support plate 29 is fixedly installed on the top of the second spring 28, and a pressing column 31 is fixedly installed on one side of the top of the support plate 29, and the top of the pressing column 31 passes through the groove 30 and extends to the outside of the groove 30, and the top of the support plate 29 and the side away from the pressing column 31 are fixedly installed with a limiting column 27, and the bottom of the rotating block 3 is equidistantly provided with limiting grooves 26, and the top of the limiting column 27 is slidably inserted into the inner cavity of the limiting groove 26;

[0030] The groove 30 is provided to facilitate the storage of the second spring 28. The second spring 28 is elastic, so that the support plate 29 can move a certain distance in the inner cavity of the groove 30. The pressing column 31 is pressed, and the pressing column 31 transmits the force to the support plate 29. The movement of the support plate 29 causes the second spring 28 to contract under the force. The movement of the support plate 29 drives the limiting column 27 to move, so that the limiting column 27 is separated from the inner cavity of the limiting groove 26, thereby releasing the fixation of the rotating block 3. When the rotating block 3 needs to be fixed, the pressing column 31 is released, and the reaction of the second spring 28 drives the support plate 29 to move, so that the limiting column 27 is reinserted into the inner cavity of the limiting groove 26, thereby fixing the rotating block 3.

[0031] Furthermore, one side of the temperature reduction and pressure reduction pipeline 11 is connected with a connecting pipe 16, and one side of the connecting block 1 and located on the outer side of the fixed pipe 15 is fixedly installed with a sleeve 17, and one side of the sleeve 17 is provided with a fixing mechanism, which includes a supporting tube 21, and the supporting tube 21 is sleeved on the outer side of the fixed tube 15, one side of the supporting tube 21 is in contact with the inner cavity of the sleeve 17, and the other side of the supporting tube 21 is in contact with the inner cavity of the connecting pipe 16, and the top and bottom of the supporting tube 21 are fixedly installed with a screw 6, and the surface of the screw 6 is slidably connected with a moving plate 7, and the surface of the screw 6 and located on the outer side of the moving plate 7 is threadedly connected with a nut 5, and the surface of the screw 6 and located on the inner side of the moving plate 7 is wound with a first spring 22, and the top and bottom of one side of the connecting tube 16 and the supporting tube 21 are provided with a card slot 23, and the inner cavity of the card slot 23 is slidably inserted with a protrusion 24, and the outer side of the protrusion 24 is fixedly installed with the inner side of the moving plate 7;

[0032] By rotating the setting of the nut 5, the nut 5 is rotated, and the nut 5 rotates to move the movable plate 7, and the movement of the movable plate 7 causes the first spring 22 to be contracted under force, and the movable plate 7 drives the protrusion 24 to move, so that the protrusion 24 is inserted into the inner cavity of the card slot 23, thereby completing the fixation between the sleeve 17 and the connecting pipe 16, and a sealing ring is fixedly installed between the support pipe 21 and the sleeve 17 and the connecting pipe 16. When disassembly and maintenance are required, the nut 5 is twisted, and the nut 5 is rotated, so that the first spring 22 is not under force, and the reaction force of the first spring 22 drives the movable plate 7 to move, and the movable plate 7 drives the protrusion 24 to disengage from the inner cavity of the card slot 23, thereby releasing the fixation between the sleeve 17 and the connecting pipe 16;

[0033] Furthermore, the inner cavity of the fixed cover 14 is provided with an internal thread, the surface of the fixed tube 15 is provided with an external thread, the fixed cover 14 and the fixed tube 15 are threadedly connected through the internal thread and the external thread, a sealing gasket is provided at the penetration between the rotating rod 4 and the connecting block 1, and anti-slip grooves are equidistantly provided on the outer side of the rotating block 3;

[0034] By setting the sealing gasket, the sealing gasket can increase the sealing between the rotating rod 4 and the connecting block 1, the anti-skid groove can increase the friction of the rotating block 3, and it is convenient to operate the rotating block 3. The setting of the internal thread and the external thread makes it easy to fix and disassemble the fixed cover 14.

[0035] Working principle: When the present invention is in use, the nut 5 is rotated, and the nut 5 rotates to move the movable plate 7, and the movement of the movable plate 7 causes the first spring 22 to be contracted under force, and the movable plate 7 drives the protrusion 24 to move, so that the protrusion 24 is inserted into the inner cavity of the card slot 23, thereby completing the fixation between the sleeve 17 and the connecting pipe 16, and a sealing ring is fixedly installed between the support pipe 21 and the sleeve 17 and the connecting pipe 16. When disassembly and maintenance are required, the nut 5 is twisted, and the nut 5 rotates, so that the first spring 22 is not stressed, and the reaction force of the first spring 22 drives the movable plate 7 to move, and the movable plate 7 drives the protrusion 24 to disengage from the inner cavity of the card slot 23, thereby releasing the fixation between the sleeve 17 and the connecting pipe 16;

[0036] The cooling water enters the interior of the connecting pipe 8 through the notch 2. When the flow rate needs to be adjusted, the pressing column 31 is pressed, and the pressing column 31 transmits the force to the support plate 29. The support plate 29 moves so that the second spring 28 is forced to contract. The movement of the support plate 29 drives the limiting column 27 to move, so that the limiting column 27 is separated from the inner cavity of the limiting groove 26, thereby releasing the fixation of the rotating block 3, rotating the rotating block 3, and the rotating block 3 drives the rotating rod 4 to rotate. The rotating rod 4 drives the second gear 20 to rotate, and the second gear 20 drives the first gear 19 to rotate. The first gear 19 drives the rotating drum 18 to rotate, thereby adjusting the angle of the through hole 25 and completing the control of the water flow size. When the rotating block 3 needs to be fixed, the pressing column 31 is released, and the reaction of the second spring 28 drives the supporting plate 29 to move, so that the limiting column 27 is reinserted into the inner cavity of the limiting groove 26, thereby fixing the rotating block 3, and the cooling water enters the spraying pipe 10 through the delivery pipe 9, and is finally sprayed out through the spraying port 13.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle assembly for a temperature reduction and pressure reduction device, comprising a connection block (1) and a temperature reduction and pressure reduction pipeline (11), characterized in that: A notch (2) is provided on one side of the connection block (1), one side of the notch (2) is connected to a connection pipe (8), a fixed pipe (15) is fixedly mounted on one side of the connection block (1), one side of the connection pipe (8) passes through the connection block (1) and extends to the inner cavity of the fixed pipe (15), one side of the connection pipe (8) is connected to a delivery pipe (9), one side of the delivery pipe (9) is connected to a spray pipe (10), one side of the spray pipe (10) passes through the fixed pipe (15) and extends to the outside of the fixed pipe (15), a fixed cover (14) is provided on one side of the fixed pipe (15), spray ports (13) are provided at equal intervals on one side of the fixed cover (14), a protective layer (12) is provided on the outer side of the fixed cover (14), and the inner cavity of the connection pipe (8) is connected to a rotating drum via a bearing. (18), a through hole (25) is provided on one side of the rotating drum (18), a first gear (19) is fixedly mounted on the upper end of the surface of the rotating drum (18), the first gear (19) is meshed with a second gear (20), a rotating rod (4) is fixedly mounted on the top of the second gear (20), the top of the rotating rod (4) passes through the connecting block (1) through a bearing and extends to the outside of the connecting block (1), a rotating block (3) is fixedly mounted on the top of the rotating rod (4), a limiting mechanism is provided at the top of the connecting block (1) and below the rotating block (3), a connecting pipe (16) is connected to one side of the temperature reduction and pressure reduction pipeline (11), a sleeve (17) is fixedly mounted on one side of the connecting block (1) and outside the fixed pipe (15), and a fixing mechanism is provided on one side of the sleeve (17); The limiting mechanism comprises a groove (30), wherein the groove (30) is formed at the top of the connecting block (1), second springs (28) are fixedly mounted on both sides of the bottom of the inner cavity of the groove (30), a support plate (29) is fixedly mounted on the top of the second spring (28), a pressing column (31) is fixedly mounted on one side of the top of the support plate (29), and the top of the pressing column (31) passes through the groove (30) and extends to the outside of the groove (30); A limiting column (27) is fixedly installed on the top of the support plate (29) and on a side away from the pressing column (31); limiting grooves (26) are equidistantly provided on the bottom of the rotating block (3); the top of the limiting column (27) is slidably inserted into the inner cavity of the limiting groove (26); the fixing mechanism comprises a support tube (21); the support tube (21) is sleeved on the outer side of the fixing tube (15); one side of the support tube (21) is in contact with the inner cavity of the sleeve (17); the other side of the support tube (21) is in contact with the inner cavity of the connecting tube (16); screws (6) are fixedly installed on the top and bottom of the support tube (21); and a movable plate (7) is slidably connected to the surface of the screw (6); A nut (5) is threadedly connected to the surface of the screw rod (6) and located on the outer side of the movable plate (7); a first spring (22) is wound around the surface of the screw rod (6) and located on the inner side of the movable plate (7); a slot (23) is provided at the top and bottom of one side of the connecting tube (16) and the supporting tube (21); a protrusion (24) is slidably inserted into the inner cavity of the slot (23); and the outer side of the protrusion (24) is fixedly mounted to the inner side of the movable plate (7); The protective layer (12) comprises an anti-corrosion coating (1201), the anti-corrosion coating (1201) is applied to the outside of the fixed cover (14), the outside of the anti-corrosion coating (1201) is coated with a high-temperature resistant layer (1202), the thickness of the anti-corrosion coating (1201) is 1.5 μm-3 μm, and the thickness of the high-temperature resistant layer (1202) is 1 μm-2.5 μm.

2. The nozzle assembly of the temperature and pressure reduction device according to claim 1, characterized in that: The inner cavity of the fixing cover (14) is provided with an internal thread, the surface of the fixing tube (15) is provided with an external thread, and the fixing cover (14) and the fixing tube (15) are threadedly connected via the internal thread and the external thread.

3. The nozzle assembly of the temperature and pressure reduction device according to claim 1, characterized in that: A sealing pad is provided at the penetration point between the rotating rod (4) and the connecting block (1), and anti-slip grooves are provided at equal intervals on the outer side of the rotating block (3).

Citation Information

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