CN108533780B - Temperature and pressure reducing valve - Google Patents
Temperature and pressure reducing valve Download PDFInfo
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- CN108533780B CN108533780B CN201810437530.0A CN201810437530A CN108533780B CN 108533780 B CN108533780 B CN 108533780B CN 201810437530 A CN201810437530 A CN 201810437530A CN 108533780 B CN108533780 B CN 108533780B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention belongs to the technical field of valve equipment, and 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, the executing device is connected with the valve core and is used for driving the valve core to move up and down, a gas inlet and a gas 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 gas inlet, the lower valve cavity is communicated with the gas outlet, an inner sleeve is arranged in the outer sleeve in a sliding mode, the upper end of the inner sleeve is closed and is fixedly connected with the valve core, a second gas hole is formed in the inner sleeve, a sliding sleeve is fixedly arranged in the inner sleeve, a temperature reduction water pipe is arranged in the sliding sleeve, a plurality of water outlet holes are uniformly formed in the temperature, the temperature reduction effect is improved, and meanwhile, the damage of water hammer to the valve body is avoided.
Description
Technical Field
The invention belongs to the technical field of valve equipment, and particularly relates to a temperature and pressure reducing valve.
Background
The 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 relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. 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.
The pressure reducing valve is characterized in that the pressure and temperature value at the outlet are kept within a certain range under the condition that the inlet pressure is constantly changed. The pressure reducing valve is an essential accessory of the pneumatic regulating valve and mainly used for reducing the pressure of an air source and stabilizing the pressure to a fixed value, so that the regulating valve can obtain stable air source power for regulating and controlling. However, the opening of the temperature and pressure reducing valve is increased or decreased along with the change of the steam flow, so as to ensure that the steam pressure after the temperature and pressure reducing valve is constant, when the load (flow) is reduced, the temperature and vaporization effect is deteriorated due to the fixed and unadjustable diameter and number of the spray holes of the nozzle of the temperature and pressure reducing valve, and the temperature and vaporization effect is rapidly reduced due to the non-synchronous adjustment of the pressure and the temperature of the steam, so that the drainage quantity of a pipeline system is increased, the water hammer phenomenon with different degrees is generated, and the valve body structure of the temperature and pressure reducing valve is damaged under severe conditions.
Disclosure of Invention
The purpose of the invention is: the temperature and pressure reducing valve can increase or decrease the water spraying amount of the temperature reducing water and the pressure in the exhaust port synchronously, and can enhance the atomization effect of the temperature reducing water through water hammer generated by the temperature reducing water, thereby improving the temperature reducing effect and avoiding damage of the water hammer to the valve body.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a 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 and connected with the valve core to drive the valve core to move up and down, 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, an outer sleeve is fixedly arranged on the isolating layer, a first air hole is formed in the outer sleeve, the upper valve cavity and the lower valve cavity are communicated through the first air hole in the outer sleeve, an inner sleeve penetrates through the outer sleeve in a sliding mode, the upper end of the inner sleeve is sealed and is fixedly connected with the valve core, the second gas pocket has been seted up to first trompil section, fixed mounting has the sliding sleeve in the inner skleeve, install the temperature reduction water pipe in the sliding sleeve, the temperature reduction water pipe includes second trompil section, the temperature reduction water pipe has evenly seted up a plurality of water apertures in second trompil section, the isolation layer can be dismantled in the temperature reduction water pipe outside and be connected with a water attack section of thick bamboo, the water attack section of thick bamboo cover is located outside the second trompil section, a plurality of spherical recesses have evenly been seted up to a water attack section of thick bamboo inner wall, valve body bottom fixed mounting has first flange, install sealed the pad between first flange and the valve body, temperature reduction water pipe fixed mounting is on first flange.
In the technical scheme, the invention is further improved as follows:
further inject, the valve body has seted up the preformed hole in a water hammer lower extreme, the preformed hole internal diameter size is greater than the external diameter size of a water hammer, the isolation layer bottom has seted up the screw thread blind hole, a water hammer spiro union is installed on the isolation layer. Due to the structural design, the water hammer barrel is convenient to disassemble and install, and the water hammer barrel can be directly replaced through the preformed hole after the first flange is disassembled.
Further inject, the first lower flange is provided with a guide block in the reserved hole, the guide block is sleeved on the temperature reduction water pipe, and the top end of the guide block is provided with an annular groove with a U-shaped section. Due to the structural design, steam in the upper valve cavity is sprayed out through the water hammer to drive the temperature-reducing water mist to impact the annular groove, the steam and the water mist are turned under the action of the annular groove, the flowability of the steam is enhanced, the mixing effect of the steam and the temperature-reducing water is favorably improved, and the temperature-reducing effect is further improved.
Further limit, the section of the annular groove is formed by connecting smooth cambered surfaces. The structural design is favorable for gas flowing, and the service life of the guide block is prolonged.
Further, the outer diameter of a circle where the bottom end of the annular groove is located is larger than the inner diameter of the water hammer. Due to the structural design, the bottommost end of the annular groove is located outside the circle of the circle where the water hammer is located, the steam sprayed out of the water hammer is prevented from impacting the bottom of the annular groove at first, and the steam is guided to be diffused towards the outer side of the circle where the guide block is located.
Further limiting, a second lower flange is arranged at the bottom end of the temperature reduction water pipe, an adjusting rod is connected to the second lower flange in a threaded mode, an adjusting cylinder with a closed bottom end is fixedly installed in the temperature reduction water pipe, a communicating hole is formed in the bottom end of the adjusting cylinder outside the circle where the adjusting rod is located, the adjusting cylinder and the temperature reduction water pipe are in clearance fit, a water inlet is formed in the lower portion of the adjusting cylinder on the wall of the temperature reduction water pipe, and a hand wheel is installed at one end, penetrating out of the second lower flange, of the adjusting rod. By means of the structural design, the position of the adjusting cylinder can be changed through the rotary drum hand wheel, the water yield is adjusted again, the proportion between the steam discharge amount and the desuperheating water discharge amount of the upper valve cavity can be changed, the desuperheating effect is controllable, the proportion imbalance between the desuperheating water discharge amount and the steam discharge amount is avoided, and the quality of discharged steam is low after desuperheating.
Further limiting, the fit clearance between the adjusting cylinder and the temperature-reducing water pipe is 0.11-0.13 mm, and the structural design ensures that the adjusting cylinder and the temperature-reducing water pipe can slide freely and have a good sealing effect.
Further limiting, a limiting column is fixedly arranged at the top end of the inner sleeve outside the circle of the valve core, and through the structural design, the ascending range of the inner sleeve can be limited through the limiting column, so that the positions of the first open hole section and the outer sleeve can be well corresponding.
Further defined, the pore size of the first pores is larger than the pore size of the second pores. Such structural design can avoid including the regional a large amount of superposes between second gas pocket and the first gas pocket on the outer sleeve when the sleeve removes, makes steam emission unstable, causes the uncontrollable problem of pressure release.
The invention has the beneficial effects that:
1. the valve core drives the inner sleeve to move, so that the first open area and the outer sleeve are gradually overlapped or separated, the communication quantity of the first air holes and the second air holes is changed, and the opening degree of the valve is adjusted; meanwhile, the sliding sleeve moves along with the inner sleeve to change the exposed number of the small water outlet holes, so that the discharge amount of the temperature-reducing water and the opening degree of the valve are synchronously adjusted, excessive temperature-reducing water is prevented from entering the valve body, and the temperature-reducing capacity is good;
2. the design of a water hammer section of thick bamboo makes intraductal spun desuperheating water of desuperheating produce the water hammer in a water hammer section of thick bamboo is inside, a plurality of spherical recesses have been seted up to a water hammer section of thick bamboo simultaneously, when the desuperheating water strikes a water hammer section of thick bamboo inner wall, the launch area of desuperheating water can be enlarged under the effect of spherical recess, and then the atomization effect of reinforcing spun desuperheating water, be favorable to improving the desuperheating ability, simultaneously, avoid the desuperheating water direct impact valve body under the effect of blockking of a water hammer section of thick bamboo, avoid the valve.
3. The position of the adjusting cylinder can be changed through the rotary drum hand wheel, the water discharge can be adjusted again under the condition that the opening of the valve is not changed, the proportion of the steam discharge and the temperature-reducing water discharge is changed, and the condition that the quality of discharged steam is lower after temperature reduction due to unbalanced proportion of the water discharge and the steam discharge can be avoided.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of a temperature and pressure reducing valve according to the present invention;
FIG. 2 is a schematic longitudinal sectional view of an embodiment of a temperature and pressure reducing valve according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural diagram of an adjusting cylinder in an embodiment of the temperature and pressure reducing valve of the present invention;
the main element symbols are as follows:
the water hammer comprises a valve body 1, an air inlet 21, an air outlet 22, an isolation layer 23, a valve core 31, an inner sleeve 32, a limiting column 321, an outer sleeve 33, a valve cover 4, a first lower flange 5, a guide block 51, an annular groove 52, a temperature reduction water pipe 61, an air inlet 62, a second lower flange 63, an adjusting shaft 64, a hand wheel 65, an adjusting cylinder 66, a communication hole 67, a sliding sleeve 68, a water hammer cylinder 7 and a spherical groove 71.
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 4, a 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, the executing device is connected with the valve core 31 and is used for driving the valve core 31 to move up and down, 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, an outer sleeve 33 is fixedly installed on the isolating layer 23, a first air hole is arranged on the outer sleeve 33, the upper valve cavity and the lower valve cavity are communicated through the first air hole on the outer sleeve 33, an inner sleeve 32 is slidably, the inner sleeve 32 comprises a first open pore section, the length dimension of the first open pore section is equal to the length dimension of the outer sleeve 33, the first open pore section is provided with a second air hole, the aperture dimension of the first air hole is larger than the aperture dimension of the second air hole, a sliding sleeve 68 is fixedly arranged in the inner sleeve 32, a temperature reduction water pipe 61 is arranged in the sliding sleeve 68, the temperature reduction water pipe 61 comprises a second open pore section, the temperature reduction water pipe 61 is uniformly provided with a plurality of water outlet small holes in the second open pore section, the isolation layer 23 is detachably connected with a water hammer cylinder 7 outside the temperature reduction water pipe 61, the water hammer cylinder 7 is covered outside the second open pore section, the inner wall of the water hammer cylinder 7 is uniformly provided with a plurality of spherical grooves 71, the bottom end of the valve body 1 is fixedly provided with a first lower flange 5, a sealing gasket is arranged between the first lower flange 5 and the valve body 1, the temperature reduction water pipe 61 is fixedly arranged on the, the inner diameter of the reserved hole is larger than the outer diameter of the water hammer 7, the bottom end of the isolation layer 23 is provided with a threaded blind hole 24, the water hammer 7 is in threaded connection with the isolation layer 23, the first lower flange 5 is provided with a guide block 51 in the reserved hole, the guide block 51 is sleeved on the temperature reduction water pipe 61, the top end of the guide block 51 is provided with an annular groove 52 with a U-shaped section, the outer diameter of a circle where the bottom end of the annular groove 52 is located is larger than the inner diameter of the water hammer 7, and the section of the annular groove 52 is formed by connecting smooth cambered;
during pressure relief, the valve core 31 is driven to move upwards through the executing device, the inner sleeve 32 is driven to move upwards, the first opening section is gradually overlapped with the outer sleeve 33 in the moving-up process of the inner sleeve 32, the first air hole and the second air hole are communicated to begin pressure relief, meanwhile, the sliding sleeve 68 sleeved outside the temperature reduction water pipe 61 moves upwards synchronously, the second opening section is gradually exposed, temperature reduction water mist is sprayed, the temperature reduction water sprayed out through the water outlet small hole is preliminarily mixed with steam in the water hammer 7 and then sprayed out of the water hammer 7, the steam sprayed out of the water hammer 7 and the temperature reduction water mist impact the guide block 51 to enter the lower valve cavity and finally are discharged from the exhaust port 22, the first opening section is gradually overlapped with the outer sleeve 33 along with the continuous upward movement of the inner sleeve 32, the pressure relief capacity is gradually enhanced, and when the limiting column 321 is in contact with the valve cover 4, the first opening section is completely overlapped;
the bottom end of the temperature-reducing water pipe 61 is provided with a second lower flange 63, the second lower flange 62 is screwed with an adjusting rod 64, the adjusting rod 64 is fixedly provided with an adjusting cylinder 66 with a closed bottom end in the temperature-reducing water pipe 61, the bottom end of the adjusting cylinder 66 is provided with a communicating hole 67 outside the circle of the adjusting rod 64, the adjusting cylinder 66 is in clearance fit with the temperature-reducing water pipe 61, the fit clearance between the adjusting cylinder 66 and the temperature-reducing water pipe 61 is 0.11 mm-0.13 mm, the pipe wall of the temperature-reducing water pipe 61 is provided with a water inlet 62 at the lower part of the adjusting cylinder 66, one end of the adjusting rod 64 penetrating through the second lower flange 63 is provided with a hand wheel 65, when the proportion of the temperature-, the hand wheel 65 is rotated to drive the adjusting shaft 64 to rotate, the adjusting shaft 64 screwed on the second lower flange 63 moves up and down to drive the adjusting cylinder 66 to move synchronously, the shielding amount of the adjusting cylinder 66 to the small water outlet hole is changed, and the water outlet amount of the temperature-reducing water pipe 61 is further changed, so that the purpose of adjusting is achieved.
The 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 (7)
1. The utility model provides a temperature and pressure reduction 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) and is used for driving case (31) and reciprocates, 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 the air inlet (21), the lower valve cavity is communicated with the air outlet (22), an isolation layer (23) is arranged between the upper valve cavity and the lower valve cavity, an outer sleeve (33) is fixedly arranged on the isolation layer (23), a first air hole is formed in the outer sleeve (33), the upper valve cavity and the lower valve cavity are communicated with the first air hole in the outer sleeve (33), an inner sleeve (32) is arranged in the outer sleeve (33) in a sliding and penetrating mode, the upper end of the inner sleeve (32) is sealed and fixedly connected with a valve core (31), the inner sleeve (32) comprises a first opening section, the length size of the first opening section is equal to that of the outer sleeve (33), a second air hole is formed in the first opening section, a sliding sleeve (68) is fixedly arranged in the inner sleeve (32), a temperature reduction water pipe (61) is arranged in the, the temperature reduction water pipe (61) comprises a second open pore section, the temperature reduction water pipe (61) is uniformly provided with a plurality of water outlet small pores in the second open pore section, the isolation layer (23) is detachably connected with a water attack cylinder (7) outside the temperature reduction water pipe (61), the water attack cylinder (7) is covered outside the second open pore section, the inner wall of the water attack cylinder (7) is uniformly provided with a plurality of spherical grooves (71), the bottom end of the valve body (1) is fixedly provided with a first lower flange (5), a sealing gasket is arranged between the first lower flange (5) and the valve body (1), the temperature reduction water pipe (61) is fixedly arranged on the first lower flange (5), the valve body (1) is provided with a reserved hole at the lower end of the water attack cylinder (7), the inner diameter of the reserved hole is larger than the outer diameter of the water attack cylinder (7), the bottom end of the isolation layer (23) is provided with a threaded blind hole (24), the water hammer is characterized in that the water hammer cylinder (7) is installed on the isolation layer (23) in a threaded mode, the first lower flange (5) is provided with a guide block (51) in the reserved hole, the temperature reduction water pipe (61) is sleeved with the guide block (51), and the top end of the guide block (51) is provided with an annular groove (52) with a U-shaped section.
2. A reduced temperature and pressure valve as defined in claim 1, wherein: the section of the annular groove (52) is formed by connecting smooth cambered surfaces.
3. A reduced temperature and pressure valve as defined in claim 2, wherein: the outer diameter of the circle where the bottom end of the annular groove (52) is located is larger than the inner diameter of the water hammer (7).
4. A reduced temperature and pressure valve as defined in claim 3, wherein: the utility model discloses a temperature reduction water pipe, including a temperature reduction water pipe (61), flange (63) under the temperature reduction water pipe (61) bottom ann has the second, the spiro union has regulation pole (64) on flange (63) under the second, regulation pole (64) are installed with end confined regulation section of thick bamboo (66) in temperature reduction water pipe (61) internal fixation, it is equipped with intercommunicating pore (67) to adjust section of thick bamboo (66) bottom and open outside the circle of adjusting pole (64) place circle, adjust for clearance fit between section of thick bamboo (66) and temperature reduction water pipe (61), temperature reduction water pipe (61) pipe wall is equipped with water inlet (62) in regulation section of thick bamboo (66) lower part, adjust pole (64) and install hand wheel (65) in wearing out second flange (63).
5. A valve according to claim 4, wherein: the fit clearance between the adjusting cylinder (66) and the temperature-reducing water pipe (61) is 0.11-0.13 mm.
6. A valve according to claim 5, wherein: and a limiting column (321) is fixedly arranged at the top end of the inner sleeve (32) outside the circle of the valve core (31).
7. A reduced temperature and pressure valve as claimed in any one of the preceding claims, wherein: the pore size of the first pores is larger than the pore size of the second pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437530.0A CN108533780B (en) | 2018-05-09 | 2018-05-09 | Temperature and pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437530.0A CN108533780B (en) | 2018-05-09 | 2018-05-09 | Temperature and pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
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| CN108533780A CN108533780A (en) | 2018-09-14 |
| CN108533780B true CN108533780B (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810437530.0A Active CN108533780B (en) | 2018-05-09 | 2018-05-09 | Temperature and pressure reducing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN108533780B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577949A (en) * | 2020-03-31 | 2020-08-25 | 浙江杭惠阀门有限公司 | Impact atomization type temperature and pressure reducing valve |
| CN111577950B (en) * | 2020-03-31 | 2023-06-09 | 浙江杭惠阀门有限公司 | Pressure reducing valve |
| CN112902024B (en) * | 2021-02-14 | 2022-11-18 | 北京环渤高科能源技术有限公司 | Temperature and pressure reducing device capable of realizing automatic start and stop |
| CN113008586B (en) * | 2021-02-14 | 2023-07-14 | 国能河北龙山发电有限责任公司 | Detection device for temperature and pressure reduction |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2830609C2 (en) * | 1978-07-12 | 1984-09-27 | Welland & Tuxhorn, 4800 Bielefeld | Adjustable throttle valve for steam |
| DE3304523C2 (en) * | 1983-02-10 | 1987-01-08 | Holter Regelarmaturen Gmbh & Co Kg, 4815 Schloss Holte-Stukenbrock | Steam conversion valve |
| CN201818868U (en) * | 2010-06-10 | 2011-05-04 | 杭州杭辅电站辅机有限公司 | High-temperature and high-pressure temperature and pressure relief valve |
| CN103899808B (en) * | 2013-12-20 | 2017-02-08 | 罗林华 | Steam pressure reducing cooling valve |
| CN203797078U (en) * | 2014-02-21 | 2014-08-27 | 浙江鼎耐流体控制科技有限公司 | Integrated pressure and temperature reducing valve |
| CN104455607A (en) * | 2014-12-17 | 2015-03-25 | 杭州华惠阀门有限公司 | Temperature and pressure reducing valve |
| CN207005328U (en) * | 2017-05-15 | 2018-02-13 | 环球阀门集团有限公司 | Hermetically sealed steam converter valve |
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2018
- 2018-05-09 CN CN201810437530.0A patent/CN108533780B/en active Active
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| CN108533780A (en) | 2018-09-14 |
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