CN111577949A - Impact atomization type temperature and pressure reducing valve - Google Patents

Impact atomization type temperature and pressure reducing valve Download PDF

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Publication number
CN111577949A
CN111577949A CN202010242776.XA CN202010242776A CN111577949A CN 111577949 A CN111577949 A CN 111577949A CN 202010242776 A CN202010242776 A CN 202010242776A CN 111577949 A CN111577949 A CN 111577949A
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CN
China
Prior art keywords
valve
groove
cavity
impact
pressure reducing
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CN202010242776.XA
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Chinese (zh)
Inventor
陈立龙
陈卫平
张明
谢小白
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Zhejiang Hanghui Valve Co ltd
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Zhejiang Hanghui Valve Co ltd
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Application filed by Zhejiang Hanghui Valve Co ltd filed Critical Zhejiang Hanghui Valve Co ltd
Priority to CN202010242776.XA priority Critical patent/CN111577949A/en
Publication of CN111577949A publication Critical patent/CN111577949A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20Excess-flow valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00Means in valves for absorbing fluid energy
    • F16K47/02Means in valves for absorbing fluid energy for preventing water-hammer or noise

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention belongs to the technical field of valve equipment, and relates to an impact atomization type temperature and pressure reducing valve, which comprises a valve body, a valve core and a valve cover, wherein the valve core is arranged in the valve body, the valve body comprises an upper valve cavity and a lower valve cavity, a first communicating groove is formed in the side wall of a communicating pipe, the upper valve cavity is communicated with the lower valve cavity through the first communicating groove, a valve clack is arranged at the bottom end of the valve core, the valve clack comprises a valve clack column and a valve clack barrel fixedly arranged on the valve clack column, an exhaust groove is axially formed in the side wall of the valve clack barrel, an accommodating cavity is axially formed in the valve cover, an adjusting barrel is arranged in the accommodating cavity of the valve core, a threaded sliding groove is formed in the adjusting barrel, an adjusting shaft is slidably penetrated in the adjusting barrel, an actuating device is connected with the adjusting shaft and used for moving the adjusting shaft up and down, the, the service life of the valve clack cylinder is prolonged, and the atomization effect is good.

Description

Impact atomization type temperature and pressure reducing valve
Technical Field
The invention belongs to the technical field of valve equipment, and particularly relates to an impact atomization type temperature and pressure reducing valve.
Background
Along with the further implementation of the national strategy of energy conservation and emission reduction, various pressure equipment develops rapidly, particularly the pressure equipment of a large-capacity unit taking steam as a power source develops rapidly, and the temperature and pressure reducing valve, particularly the high-temperature and high-pressure temperature and pressure reducing valve of a power station taking steam as a medium, has wider and wider application.
The temperature and pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by depending on the energy of a medium. From the viewpoint of hydrodynamics, the temperature and pressure reducing valve is a throttling element with variable local resistance, that is, the flow rate and the kinetic energy of the fluid are changed by changing the throttling area, so as to cause different pressure losses, thereby achieving the purpose of reducing the pressure. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range, and meanwhile, cooling water is sprayed into the valve body or the back of the valve to reduce the temperature of the medium.
Traditional temperature-reducing relief pressure valve is the structure of simple valve clack and valve rod, and the valve rod is connected the valve clack and provides the power of opening and close for the operation of valve clack, but because the effect of medium force for the closing power that the valve clack pushed down is great, and the power of opening on is less, thereby leads to the operation unstable. In order to solve the problem, the space that the balanced hole passageway was cut apart with the intercommunication valve clack has been set up on the valve clack, make partial medium can flow through balanced hole passageway, balance the medium power, the power of opening and closing of valve clack has been reduced, but because the existence of balanced hole passageway, make the medium can flow by balanced hole passageway, when not needing balanced medium power, the condition that the medium still can reveal still exists, the loss of pressure has been caused, simultaneously in the moment that the valve opened and closed, the velocity of flow transient increase, the impact that causes sealed face is very big, it leads to the case impaired very seriously to erode, short service life, cause the valve to leak outward easily, simultaneously cooling water pours into nothing in the relief pressure valve into, its atomization effect is relatively poor, influence the cooling ability.
Disclosure of Invention
In view of the problems mentioned in the background, the object of the invention is: the impact atomization type temperature and pressure reducing valve can avoid the influence of medium force on opening and closing force, so that the valve is convenient to open and close, pressure loss is avoided, the impact force of high-pressure gas on a valve clack cylinder in the moment of opening the valve is weakened, the service life of the valve clack cylinder is prolonged, and the atomization effect is good.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an impact atomization type temperature and pressure reducing valve comprises a valve body, a valve core and a valve cover, wherein the valve core is arranged in the valve body, the valve cover is fixedly arranged on the valve body, an executing device is arranged on the valve cover, an air inlet and an air outlet are arranged on the valve body, the valve body comprises an upper valve cavity and a lower valve cavity, the upper valve cavity is communicated with the air inlet, the lower valve cavity is communicated with the air outlet, an isolating layer is arranged between the upper valve cavity and the lower valve cavity, a communicating pipe is arranged on the isolating layer, a first communicating groove is formed in the side wall of the communicating pipe, the upper valve cavity is communicated with the lower valve cavity through the first communicating groove, a valve clack is arranged at the bottom end of the valve core, the valve clack comprises a valve clack column and a valve clack barrel fixedly arranged on the valve clack column, an exhaust groove corresponding to, the opposite-flushing groove comprises an upper chute and a lower chute, the upper chute is arranged obliquely downwards, the lower chute is arranged obliquely upwards, a water outlet sleeve is arranged in the valve flap column, an atomization groove is formed in the outer wall of the water outlet sleeve, the angle of the atomization groove corresponds to the angle of the opposite-flushing groove, the atomization groove is communicated with the inside of the water outlet sleeve, a water inlet pipe is arranged on the valve body in a penetrating manner, one end of the water inlet pipe is arranged in the water outlet sleeve in a penetrating manner, a liquid outlet is formed in the water inlet pipe, a limiting plate is arranged between the valve body and the valve cover, the valve core is arranged in the limiting plate in a penetrating manner and is in clearance fit with the limiting plate, a containing cavity is axially formed in the valve cover, an adjusting cylinder is arranged in the containing cavity, a threaded chute is formed in the adjusting cylinder, an adjusting shaft is arranged in the adjusting cylinder in a penetrating manner, and a, the clamp column sliding clamp is arranged in the threaded sliding groove, the sealing plate is arranged at the top end of the valve cover, the sealing plate is sleeved on the adjusting shaft in a sliding mode, the executing device is arranged on the sealing plate, and the executing device is connected with the adjusting shaft and used for driving the adjusting shaft to move up and down.
In the technical scheme, the invention is further improved as follows:
further inject, go up the crossing point of chute and lower chute place straight line and be located the atomizing inslot, make by last chute and lower chute spun gas in the atomizing inslot offset, when reducing gaseous impact force through the offset, impact the atomizing to the cooling water that flows out by the atomizing groove 361, very big reduction gas is favorable to improving the life of valve clack section of thick bamboo to the impact of valve clack section of thick bamboo, improves the atomizing cooling effect of cooling water simultaneously.
Further limiting, the range of the central angle of the circular arc where the first connecting groove is located is 90-120 degrees, and due to the structural design, the angle of the closed area on the valve clack cylinder is larger than that of the first connecting groove, so that the valve clack cylinder can be closed through the first connecting groove well.
Further inject, the ring channel that corresponds each other is all seted up with the limiting plate bottom in valve clack capital end, be equipped with in the ring channel with ring channel assorted steel ball, such structural design becomes rolling friction through the steel ball between valve lamella post and the limiting plate by sliding friction to the rotation of valve lamella post is convenient for.
Further inject, the isolation layer has seted up the screw thread blind hole with the axle center in communicating pipe lower extreme, screw thread blind hole internal thread is connected with the inner tube, the inner tube is the ladder tubular construction, inner tube bottom spiro union is in the screw thread blind hole, the valve clack section of thick bamboo is worn to locate in the upper end, for clearance fit, and axial between the upper end of inner tube and the valve clack section of thick bamboo set up with first connecting groove assorted third intercommunication groove, such structural design protects the valve body through the inner tube, and steam direct impact valve body when avoiding first connecting groove to open reduces valve body damage extension valve life.
Further inject, the preformed hole has been seted up to the valve body bottom, the aperture size in preformed hole is greater than the aperture size of screw thread blind hole, the lower flange is installed to the valve body bottom, be equipped with the sealing washer between lower flange and the valve body, such structural design, the accessible preformed hole is direct to be changed the inner tube.
Further inject, inlet tube and lower flange integrated into one piece, integrative the striking platform that has become on the inlet tube, the last arc wall of having seted up of striking platform, the arc wall corresponds with the lower part opening of inner tube, the last intercommunicating pore of having seted up of striking platform, intercommunicating pore and the inside intercommunication of inlet tube make in the inlet tube partly cooling water get into the arc wall through the intercommunicating pore, because the arc wall corresponds with the lower part opening of inner tube, the valve is opened the back and is penetrated the arc wall directly through inner tube bottom spun high temperature high pressure gas, with the cooling water atomization in the arc wall, improve the atomizing cooling effect, can need not to pressurize when pouring into the cooling water and pour into and can keep better atomizing effect, convenient to use is favorable to the energy saving simultaneously.
Further limiting, the number of turns of the thread line where the thread-shaped sliding groove is located is 0.5, and due to the structural design, when the clamping column slides from the bottom end to the top end of the thread-shaped sliding groove, the rotation angle of the valve clack is 180 degrees, and the invalid rotation stroke of the valve clack is shortened under the condition that the valve clack cylinder can be well sealed in the first connecting groove.
The invention has the beneficial effects that:
1. the valve clack is arranged in the communicating pipe, and cannot move up and down under the action of the limiting plate and the adjusting cylinder, the adjusting cylinder cannot move up and down due to the fixed connection of the adjusting cylinder and the valve clack, the inner wall of the adjusting cylinder is provided with a thread-shaped sliding groove, when the adjusting shaft moves up and down, the clamping column moves along the thread-shaped sliding groove, and the adjusting cylinder can be forced to rotate under the action of the clamping column, so that the valve core and the valve clack are driven to rotate, the first communicating groove, the exhaust groove and the second communicating groove correspondingly open the valve, the up and down movement of the adjusting shaft is not influenced by medium force, and the problem of inconvenient opening and closing control of the valve due to; meanwhile, a balance through hole is not required to be formed, so that pressure loss is avoided;
2. when the valve clack is rotated, firstly, the opposite flushing groove and the first connecting groove are coincided to open the valve, high-pressure gas is obliquely sprayed into the valve clack cylinder under the guidance of the upper chute and the lower chute at the moment of opening the valve, the upper chute is obliquely and downwards arranged, the lower chute is obliquely and upwards arranged, and the intersection point of the straight lines of the upper chute and the lower chute is positioned in the atomization groove, so that the gas sprayed by the upper chute and the lower chute is oppositely flushed in the atomization groove, the impact force of the gas is reduced through the opposite flushing, and meanwhile, the cooling water flowing out of the atomization groove is subjected to impact atomization, so that the impact of the gas on the valve clack cylinder is greatly reduced, the service life of the valve clack cylinder is prolonged, and the atomization cooling effect of the cooling water;
3. the design of the arc-shaped groove on the impact table enables a cooling water outlet to flow into the arc-shaped groove, and high-temperature and high-pressure gas sprayed out from the bottom end of the inner cylinder directly penetrates into the arc-shaped groove to atomize cooling water in the arc-shaped groove, so that the atomization cooling effect is improved, a better atomization effect can be kept without pressurizing and injecting when the cooling water is injected, the use is convenient, and meanwhile, the energy is saved;
4. the valve clack can not move up and down, so that the vibration of the valve clack when the valve is opened can be avoided, and the service life of the valve is prolonged while the noise is weakened.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic longitudinal sectional view of an embodiment of an impingement atomization type pressure and temperature reducing valve of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic longitudinal sectional view of a valve body of an embodiment of an impingement atomization type pressure and temperature reducing valve of the present invention;
FIG. 4 is a schematic cross-sectional view of an embodiment of an impact atomizing type temperature and pressure reducing valve according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4;
FIG. 6 is a schematic view of a connection structure between a valve core and an inner cylinder in an embodiment of an impact atomization type temperature and pressure reducing valve of the present invention;
FIG. 7 is a schematic longitudinal sectional view of a valve core portion of an embodiment of an impact atomizing type temperature and pressure reducing valve according to the present invention;
FIG. 8 is a schematic view of a water inlet pipe in an embodiment of an impact atomization type temperature and pressure reducing valve of the present invention;
the main element symbols are as follows:
the valve comprises a valve body 1, a communication pipe 11, a first communication groove 12, a threaded blind hole 13, an air inlet 21, an air outlet 22, an isolation layer 23, a valve core 31, an adjusting cylinder 32, an adjusting shaft 33, a valve clack column 34, a valve clack cylinder 341, an air exhaust groove, an annular groove 343, an upper inclined groove 3441, a lower inclined groove 3442, an inner cylinder 35, a third communication groove 351, a water outlet sleeve 36, an atomizing groove 361, a valve cover 4, a sealing plate 41, a limiting plate 42, a lower flange 5, a threaded sliding groove 6, a water inlet pipe 7, an impact table 71, an arc-shaped groove 711, a communication hole 72 and a.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1 to 8, an impact atomization type temperature and pressure reducing valve comprises a valve body 1, a valve core 31 and a valve cover 4, wherein the valve core 31 is installed in the valve body 1, the valve cover 4 is fixedly installed on the valve body 1, an executing device is installed on the valve cover 4, an air inlet 21 and an air outlet 22 are arranged on the valve body 1, the valve body 1 comprises an upper valve cavity and a lower valve cavity, the upper valve cavity is communicated with the air inlet 21, the lower valve cavity is communicated with the air outlet 22, an isolating layer 23 is arranged between the upper valve cavity and the lower valve cavity, a communicating pipe 11 is installed on the isolating layer 23, a first communicating groove 12 is formed in the side wall of the communicating pipe 11, the central angle of the circular arc where the first communicating groove 12 is located ranges from 90 degrees to 120 degrees, the upper valve cavity is communicated with the lower valve cavity through the first communicating groove 12, a valve flap is installed at the bottom end of the valve core 31, the valve flap, the exhaust groove comprises a second communicating groove 342 and a plurality of groups of opposite-flushing grooves 344, the opposite-flushing grooves 344 comprise an upper inclined groove 3441 and a lower inclined groove 3442, the upper inclined groove 3441 is obliquely and downwards arranged, the lower inclined groove 3442 is obliquely and upwards arranged, a water outlet sleeve 36 is installed in the valve clack column 34, an atomization groove 361 is formed in the outer wall of the water outlet sleeve 36, the angle of the atomization groove 361 corresponds to that of the opposite-flushing grooves 344, the atomization groove 361 is communicated with the inside of the water outlet sleeve 36, a water inlet pipe 7 is arranged on the valve body 1 in a penetrating mode, one end of the water inlet pipe 7 is arranged in the water outlet sleeve 36, a water injection device is externally connected with the other end of the water inlet pipe 7, a liquid outlet 73 is formed in the water inlet pipe 7, wherein the intersection point of the straight lines where the upper inclined groove 3441 and the lower inclined groove 3442 are located is located in the atomization groove 361, so that gas sprayed from the upper inclined groove 3441 and the lower inclined groove 3442 is oppositely flushed in, the very big impact that reduces gas to valve clack cylinder 341 is favorable to improving valve clack cylinder 341's life, improves the atomizing cooling effect of cooling water simultaneously.
A limit plate 42 is arranged between the valve body 1 and the valve cover 4, the top end of the valve clack column 34 and the bottom end of the limit plate 42 are both provided with annular grooves 343 corresponding to each other, steel balls matched with the annular grooves 343 are arranged in the annular grooves 343, the valve core 31 is arranged in the limit plate 42 in a penetrating way and is in clearance fit with the limit plate 42, a containing cavity is axially arranged on the valve cover 4, an adjusting cylinder 32 is arranged in the containing cavity of the valve core 31, a threaded sliding groove 6 is arranged in the adjusting cylinder 32, the number of turns of a thread line where the threaded sliding groove 6 is located is 0.5 turn, an adjusting shaft 33 is arranged in the adjusting cylinder 32 in a sliding way, a clamping column is fixedly arranged on the outer part of the adjusting shaft 33 and is arranged in the threaded sliding way, a seal plate 41 is arranged at the top end of the valve cover 4, the seal plate 41 is sleeved on the adjusting, the lower end of the communicating pipe 11 of the isolating layer 23 is coaxially provided with a threaded blind hole 13, the threaded blind hole 13 is internally threaded with an inner barrel 35, the inner barrel 35 is of a stepped pipe structure, the bottom end of the inner barrel 35 is screwed in the threaded blind hole 13, the upper end of the inner barrel 35 is arranged in the valve clack barrel 341 in a penetrating manner, the upper end of the inner barrel 35 is in clearance fit with the valve clack barrel 341, a third communicating groove 351 matched with the first communicating groove 12 is axially arranged, the bottom end of the valve body 1 is provided with a reserved hole, the aperture size of the reserved hole is larger than that of the threaded blind hole 13, the bottom end of the valve body 1 is provided with a;
specifically, the water inlet pipe 7 and the lower flange 5 are integrally formed, the impact table 71 is integrally formed on the water inlet pipe 7, the arc-shaped groove 711 is formed in the impact table 71, the arc-shaped groove 711 corresponds to a lower opening of the inner cylinder 35, the communication hole 72 is formed in the impact table 71, the communication hole 72 is communicated with the inside of the water inlet pipe 7, a part of cooling water in the water inlet pipe 7 enters the arc-shaped groove 711 through the communication hole 72, the arc-shaped groove 711 corresponds to the lower opening of the inner cylinder 35, after the valve is opened, high-temperature high-pressure gas sprayed from the bottom end of the inner cylinder 35 directly penetrates the arc-shaped groove 711, cooling water in the arc-shaped groove 711 is atomized, the atomized cooling water is improved, a good atomization effect can be kept without pressurization injection when the cooling water is.
When pressure is relieved, firstly, the water injection device box valve body 1 externally connected with the water inlet pipe 7 is opened, cooling water is injected, the cooling water respectively flows into the arc-shaped groove 711 and the atomization groove 361, then the execution device drives the adjusting shaft 33 to vertically move upwards, the clamping column slides along the thread-shaped sliding groove 6 when the adjusting shaft 33 moves upwards, the valve core 31 cannot move upwards under the action of the limiting plate 42, at the moment, the adjusting cylinder 32 is forced to rotate due to the fact that the adjusting shaft 33 vertically moves and the clamping column is not rotated, and the adjusting cylinder 32 drives the valve clack to rotate through the valve core 31; in the process of the rotation of the valve clack, the exhaust groove on the valve clack cylinder 341 is gradually close to the first connecting groove 12 on the communicating pipe 11, at this time, the valve is still in a closed state without the first connecting groove 12 and the exhaust groove, and the moving stroke of the adjusting shaft 33 is an idle stroke in the process; then, the exhaust groove and the first connecting groove 12 are overlapped gradually, the valve is opened to start pressure relief, high-pressure gas is obliquely sprayed into the valve clack cylinder 341 under the guidance of the upper chute 3441 and the lower chute 3442 at the moment when the valve is opened, the upper chute 3441 is obliquely arranged downwards, the lower chute 3442 is obliquely arranged upwards, so that the gas sprayed from the upper chute 3441 and the lower chute 3442 is oppositely flushed in the atomizing groove 361, the impact force of the gas is reduced by the opposite flushing, simultaneously, the cooling water flowing out from the atomizing groove 361 is impacted and atomized, the impact force on the valve clack cylinder 341 is weakened, the service life of the valve is prolonged, the atomizing effect of the cooling water is favorably improved, the cooling effect is improved, the high-temperature high-pressure gas sprayed from the bottom end of the inner cylinder 35 directly penetrates the arc-shaped groove 711, the cooling water in the arc-shaped groove 711 is atomized, the atomizing cooling effect is improved, and the better atomizing effect can be maintained without pressurizing and, convenient to use is favorable to the energy saving simultaneously, and when the card post removed the top of screw thread form spout 6, upper chute 3441, lower chute 3442 and second intercommunication groove 342 coincided with first connecting groove 12 completely, and the valve was in maximum aperture this moment.
The impact atomization type temperature and pressure reducing valve provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (9)

1. The utility model provides an impact atomizing type temperature and pressure reducing valve, includes valve body (1), case (31) and valve gap (4), install in valve body (1) case (31), valve gap (4) fixed mounting is on valve body (1), install final controlling element on valve gap (4), final controlling element is connected with case (31) transmission, be equipped with air inlet (21) and gas vent (22) on valve body (1), its characterized in that: the valve body (1) comprises an upper valve cavity and a lower valve cavity, the upper valve cavity is communicated with an air inlet (21), the lower valve cavity is communicated with an air outlet (22), an isolation layer (23) is arranged between the upper valve cavity and the lower valve cavity, a communicating pipe (11) is installed on the isolation layer (23), a first communicating groove (12) is formed in the side wall of the communicating pipe (11), the upper valve cavity is communicated with the lower valve cavity through the first communicating groove (12), a valve flap is installed at the bottom end of the valve core (31), the valve flap comprises a valve flap column (34) and a valve flap cylinder (341) fixedly installed on the valve flap column (34), an exhaust groove corresponding to the first communicating groove (12) is axially formed in the side wall of the valve flap cylinder (341), the exhaust groove comprises a second communicating groove (342) and a plurality of opposite flushing grooves (344), and the opposite flushing groove (344) comprises an upper inclined groove (3441) and a lower inclined groove (34, go up chute (3441) slope and set up downwards, lower chute (3442) slope upwards sets up, install out water sleeve (36) in valve lamella post (34), it has atomizing groove (361) to set up on the outer wall of water sleeve (36), the angle of atomizing groove (361) is corresponding with the angle to dashing groove (344), atomizing groove (361) and the inside intercommunication of water sleeve (36), wear to be equipped with inlet tube (7) on valve body (1), inlet tube (7) one end is worn to locate in water sleeve (36), liquid outlet (73) have been seted up on inlet tube (7).
2. An impact atomizing type temperature and pressure reducing valve as set forth in claim 1, wherein: the intersection point of the straight lines of the upper inclined groove (3441) and the lower inclined groove (3442) is positioned in the atomization groove (361).
3. An impact atomizing type temperature and pressure reducing valve as set forth in claim 2, wherein: a limit plate (42) is arranged between the valve body (1) and the valve cover (4), the valve core (31) is arranged in the limit plate (42) in a penetrating way, and the valve core (31) is in clearance fit with the limit plate (42), the valve cover (4) is axially provided with an accommodating cavity, the valve core (31) is provided with an adjusting cylinder (32) in the accommodating cavity, a thread-shaped chute (6) is arranged in the adjusting cylinder (32), an adjusting shaft (33) is arranged in the adjusting cylinder (32) in a sliding and penetrating way, a clamping column is fixedly arranged on the outer part of the adjusting shaft (33), the clamping column is slidably clamped in the thread-shaped sliding groove (6), a sealing plate (41) is arranged at the top end of the valve cover (4), the sealing plate (41) is sleeved on the adjusting shaft (33) in a sliding manner, the actuating device is arranged on the sealing plate (41), and the actuating device is connected with the adjusting shaft (33) and used for moving the adjusting shaft (33) up and down.
4. An impact atomizing type temperature and pressure reducing valve according to claim 3, wherein: the central angle of the arc where the first connecting groove (12) is located ranges from 90 degrees to 120 degrees.
5. An impact atomizing type temperature and pressure reducing valve according to claim 4, wherein: the top end of the valve clack column (34) and the bottom end of the limiting plate (42) are provided with annular grooves (343) corresponding to each other, and steel balls matched with the annular grooves (343) are arranged in the annular grooves (343).
6. An impact atomizing type temperature and pressure reducing valve according to claim 5, wherein: the isolating layer (23) is provided with a threaded blind hole (13) in the same axis as the lower end of the communicating pipe (11), the threaded blind hole (13) is internally connected with an inner barrel (35), the inner barrel (35) is of a stepped pipe structure, the bottom end of the inner barrel (35) is in threaded blind hole (13), the upper end of the inner barrel is arranged in the valve clack barrel (341) in a penetrating mode, and a third communicating groove (351) matched with the first communicating groove (12) is axially formed between the upper end of the inner barrel (35) and the valve clack barrel (341) in a clearance fit mode.
7. An impact atomizing type temperature and pressure reducing valve according to claim 6, wherein: the valve body (1) bottom has been seted up the preformed hole, the aperture size in preformed hole is greater than the aperture size of screw thread blind hole (13), lower flange (5) are installed to valve body (1) bottom, be equipped with the sealing washer between lower flange (5) and valve body (1).
8. An impact atomizing type temperature and pressure reducing valve as set forth in claim 7, wherein: the water inlet pipe (7) and the lower flange (5) are integrally formed, an impact table (71) is integrally formed on the water inlet pipe (7), an arc-shaped groove (711) is formed in the impact table (71), the arc-shaped groove (711) corresponds to an opening in the lower portion of the inner cylinder (35), a communication hole (72) is formed in the impact table (71), and the communication hole (72) is communicated with the interior of the water inlet pipe (7).
9. An impingement atomization type pressure and temperature reducing valve as claimed in claim 8, wherein: the number of turns of the thread line where the thread-shaped sliding groove (6) is located is 0.5.
CN202010242776.XA 2020-03-31 2020-03-31 Impact atomization type temperature and pressure reducing valve Pending CN111577949A (en)

Priority Applications (1)

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CN202010242776.XA CN111577949A (en) 2020-03-31 2020-03-31 Impact atomization type temperature and pressure reducing valve

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Application Number Priority Date Filing Date Title
CN202010242776.XA CN111577949A (en) 2020-03-31 2020-03-31 Impact atomization type temperature and pressure reducing valve

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CN111577949A true CN111577949A (en) 2020-08-25

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CN108533780A (en) * 2018-05-09 2018-09-14 杭州华惠阀门有限公司 A kind of pressure and temperature reducing valve

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CN108533780A (en) * 2018-05-09 2018-09-14 杭州华惠阀门有限公司 A kind of pressure and temperature reducing valve

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Application publication date: 20200825

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