WO2017161941A1 - 一体式减温减压装置 - Google Patents

一体式减温减压装置 Download PDF

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Publication number
WO2017161941A1
WO2017161941A1 PCT/CN2016/112269 CN2016112269W WO2017161941A1 WO 2017161941 A1 WO2017161941 A1 WO 2017161941A1 CN 2016112269 W CN2016112269 W CN 2016112269W WO 2017161941 A1 WO2017161941 A1 WO 2017161941A1
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WO
WIPO (PCT)
Prior art keywords
pressure reducing
water
desuperheating
valve
valve core
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Application number
PCT/CN2016/112269
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English (en)
French (fr)
Inventor
王学朋
李元兵
暴沛然
李元亮
蔡炜鑫
陈建强
Original Assignee
吴忠仪表有限责任公司
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Application filed by 吴忠仪表有限责任公司 filed Critical 吴忠仪表有限责任公司
Priority to US16/088,379 priority Critical patent/US20190178450A1/en
Publication of WO2017161941A1 publication Critical patent/WO2017161941A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G5/00—Controlling superheat temperature
    • F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
    • F22G5/123—Water injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/06—Pipe-line systems for gases or vapours for steam
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G5/00—Controlling superheat temperature
    • F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02709—Throttle passages in the form of perforated plates
    • F16L55/02727—Throttle passages in the form of perforated plates placed parallel to the axis of the pipe

Definitions

  • the invention relates to the technical field of valve manufacturing, and in particular to an integrated temperature reducing and pressure reducing device.
  • the temperature-reducing and decompressing device is a steam thermal energy parameter conversion device and an energy-saving device utilizing waste heat, which are widely used in thermal energy engineering in a modern industrial cogeneration, central heating or steam supply, light industry, electric power, chemical industry, textile and other enterprises.
  • the steam parameters provided by the user are reduced to the temperature and pressure required by the user to meet the requirements of the user, and the thermal energy can be fully saved and the thermal energy can be used reasonably.
  • the contact area between the desuperheating water and the primary steam of the existing temperature reducing and decompressing device is small, affecting the effect of temperature reduction and decompression, resulting in inaccurate temperature control and slow reaction, and the temperature reduction is atomized and warmed by the desuperheating water in the desuperheater.
  • the vaporization realizes that the existing temperature reducing and decompressing device has a large installation space, and the primary steam entering and the secondary steam output are horizontal, and the temperature reducing and pressure reducing device is vertically installed between the primary steam and the secondary steam.
  • the technical problem to be solved by the present invention is to provide an integrated temperature reduction and pressure reduction device in order to solve the problem that the contact area between the desuperheating water and the primary steam of the existing desuperheating and decompressing device is small.
  • an integrated temperature reducing and pressure reducing device comprising a secondary steam pipe and a temperature reducing and pressure reducing mechanism disposed in the secondary steam pipe, the temperature reducing and pressure reducing mechanism
  • the upper valve cover and the valve core are provided with a plurality of pressure reducing holes, one end of the valve core is inserted with a valve stem, and the valve stem is provided with a water supply passage near one end of the valve core.
  • the outer peripheral surface of the valve stem is provided with a plurality of water inlet holes communicating with the water delivery passage, and the other end of the valve core is provided with a desuperheating water pipe, and the desuperheating water pipe is provided with a water outlet near one end of the valve stem
  • the water outlet is in communication with the water delivery channel
  • the outer peripheral surface of the one end of the desuperheating water pipe away from the valve core is provided with a plurality of water outlet holes, and the water outlet holes communicate with the water outlet channel, and the desuperheating and decompressing water are simultaneously introduced through the desuperheating water, thereby increasing the desuperheating water.
  • the contact area with the primary steam ensures a good temperature reduction and decompression effect.
  • the sleeve is sleeved on the desuperheating water pipe, and the desuperheating water pipe is formed between the desuperheating water pipe and the casing a cavity, the sleeve is fixedly connected to the valve core, and the pressure reducing hole comprises a main pressure reducing hole and a secondary pressure reducing hole, wherein the main pressure reducing hole is a first pass opened in a plurality of turns of the valve core The secondary pressure reducing hole is a second through hole opened in the valve core, and the second through hole communicates with the cavity.
  • the primary steam passes through the second through hole and After the temperature of the cooling water pipe wall is cooled, it is mixed with the desuperheating water, which can better achieve the effect of desuperheating and depressurizing.
  • the valve core When the valve core is in the fully open state, part of the steam is cooled and contacted by the wall of the desuperheating water pipe, and then reduced. The warm water is mixed, and the other part of the steam is directly decompressed by the valve core and directly mixed with the desuperheating water.
  • annular groove is formed between the valve core and the sleeve contact surface, and the annular groove is in communication with the second through hole, and the sleeve is open to communicate with the annular groove.
  • a third through hole the third through hole being in communication with the cavity.
  • valve core and the valve stem are slidably provided with an upper valve cover matched thereto, and the upper bonnet is matched with the valve shaft and the valve stem.
  • the bonnet controls the flow of desuperheated water into the spool and can be supplied on demand.
  • the secondary steam pipe is provided with a primary steam pipe perpendicular thereto, and one end of the secondary steam pipe is fixedly connected with an executing device, and the fixed connection on the executing device is reduced.
  • the warm water conveying device, the one end of the temperature reducing and pressure reducing mechanism is fixedly connected with the executing device, and the temperature adjustment precision of the temperature reducing and reducing valve is improved due to the change of the installation mode of the original integrated temperature reducing and reducing valve.
  • the installation space of the entire device is reduced, and the structure is more compact.
  • the sleeve In order to fix the sleeve and the valve core firmly and reliably, further, the sleeve is fixedly fixed on the valve core, and the sleeve is fixedly mounted on the valve core, and the sleeve is assembled with the valve core for hot charging. Reduce the processing cost of parts, save materials, and ensure that the casing and spool are fixed firmly and reliably.
  • a metal gasket is disposed between the valve stem and the contact surface of the temperature reducing water pipe, and the valve stem is located on the valve stem and the valve
  • a metal gasket is arranged between the cores, and a metal gasket is arranged between the valve stem and the contact surface of the temperature reducing water pipe, and a metal gasket is arranged on the valve stem between the valve stem and the valve core to prevent the temperature reducing water pipe
  • the valve stem collides with each other and is damaged, ensuring stable and reliable operation of the valve stem and the temperature reducing water pipe.
  • the invention has the beneficial effects that: the integrated temperature reducing and pressure reducing device of the invention passes the desuperheating water during operation, and simultaneously reduces the temperature and pressure, and increases the contact area between the desuperheated water and the primary steam, thereby ensuring a good reduction. Temperature and pressure reduction effect; when the valve core is at a small opening degree, the primary steam is cooled by the second through hole and the wall of the temperature reducing water pipe, and then mixed with the desuperheating water, thereby better achieving the effect of desuperheating and decompressing, in the spool When in the fully open state, a part of the steam is cooled down by the wall of the cooling water pipe, and then mixed with the desuperheating water.
  • the other part of the steam is decompressed by the valve core and directly enters the mixed with the desuperheating water; due to the valve core and the valve stem
  • the sliding setting has an upper bonnet that matches the upper bonnet.
  • the upper bonnet can control the flow of the desuperheated water into the spool, and can be supplied on demand; the installation mode of the original integrated desuperheating and reducing valve is changed, and the temperature reduction and decompression are improved.
  • the temperature adjustment accuracy of the valve also reduces the installation space of the whole equipment, and the structure is more compact; since the casing is hot-mounted on the valve core, the casing and the valve core are produced with hot fitting to reduce the processing of the parts.
  • the utility model saves the material and ensures the fixing of the sleeve and the valve core is firm and reliable; since the metal gasket is arranged between the contact surface of the valve stem and the temperature reducing water pipe, the valve stem is sleeved between the valve stem and the valve core.
  • the metal gasket prevents the temperature reducing water pipe and the valve stem from colliding with each other and damages, and ensures that the valve stem and the temperature reducing water pipe work stably and reliably.
  • the invention improves the contact area between the primary steam and the desuperheated water, and ensures a good temperature reduction and decompression effect. High adjustment accuracy, and Compact structure.
  • Figure 1 is a front elevational view of the integrated temperature reduction and pressure reduction device of the present invention
  • FIG. 2 is a schematic structural view of a desuperheating and pressure reducing mechanism of the integrated desuperheating and pressure reducing device of the present invention
  • Figure 3 is a front elevational view of the desuperheating and pressure reducing mechanism of the integrated desuperheating and pressure reducing device of the present invention
  • Figure 4 is a partial enlarged view of A in Figure 3;
  • Figure 5 is a schematic structural view of an upper valve cover of the integrated temperature reduction and pressure reduction device of the present invention.
  • Figure 6 is a schematic structural view of a valve stem of the integrated temperature reducing and pressure reducing device of the present invention.
  • FIG. 7 is a schematic structural view of a desuperheating water pipe of the integrated temperature reduction and pressure reducing device of the present invention.
  • Figure 8 is a schematic structural view of a valve body of the integrated temperature reducing and pressure reducing device of the present invention.
  • Figure 9 is a schematic view showing the structure of a sleeve of the integrated temperature reduction and pressure reduction device of the present invention.
  • an integrated temperature reduction and pressure reduction device includes a secondary steam pipe 1 and a desuperheating and pressure reducing mechanism disposed in the secondary steam pipe 1,
  • the desuperheating and pressure reducing mechanism comprises an upper valve cover 4 and a valve core 5, the valve core 5 is provided with a plurality of pressure reducing holes, and one end of the valve core 5 is inserted with a valve rod 9 which is close to the valve rod 9
  • One end of the valve body 5 is provided with a water delivery passage 9-1, and an outer peripheral surface of the valve stem 9 is provided with a plurality of water inlet holes 9-2 communicating with the water delivery passage 9-1, and the other end of the valve core 5 a desuperheating water pipe 10 is inserted, and one end of the desuperheating water pipe 10 near the valve stem 9 is provided with a water outlet 10-1, and the water outlet 10-1 is in communication with the water delivery channel 9-1.
  • the outer peripheral surface of the one end of the temperature reducing water pipe 10 remote from the valve body 5 is provided with a water delivery passage 9-1
  • a sleeve 6 is further included, and the sleeve 6 is sleeved on the desuperheating water pipe 10, and a cavity 11 is formed between the desuperheating water pipe 10 and the sleeve 6.
  • the sleeve 6 is fixedly connected to the valve core 5, and the pressure reducing hole comprises a main pressure reducing hole and a secondary pressure reducing hole, and the main pressure reducing hole is opened in several circles of the valve core 5
  • the through hole 7 is a second through hole 8 opened in the valve body 5, and the second through hole 8 is in communication with the cavity 11.
  • annular groove 12 is defined between the valve body 5 and the contact surface of the sleeve 6, and the annular groove 12 communicates with the second through hole 8, the sleeve
  • a third through hole 13 communicating with the annular groove 12 is provided in the upper portion, and the third through hole 13 is in communication with the cavity 11.
  • valve body 5 and the valve stem 9 are slidably disposed with an upper valve cover 4 matched thereto.
  • the secondary steam pipe 1 is provided with a primary steam pipe 1-1 perpendicular thereto, and one end of the secondary steam pipe 1 is fixedly connected with an actuator 2 , and the actuator 2 is fixedly connected There is a desuperheating water conveying device 3, and one end of the desuperheating and decompressing mechanism is fixedly connected with the executing device 2;
  • the sleeve 6 is fixedly attached to the spool 5 .
  • a metal gasket 14 is disposed between the valve stem 9 and the contact surface of the temperature reducing water pipe 10, and the valve stem 9 is located on the valve stem 9 and the valve core 5 A metal spacer 14 is also provided between them.
  • the valve stem 9 is adjusted by the executing device 2, and the upper valve cover 4 is adjusted to control the desuperheating water.
  • the desuperheating water is input by the desuperheating water conveying device 3, and the desuperheating water passes through the water inlet hole 9-2. Entering the water delivery channel 9-1 of the valve stem 9, and entering the water outlet 10-1 of the desuperheating water pipe 10 from the water delivery channel 9-1, and then discharging through the water outlet hole 10-2, and once the steam pipe 1-1 is once delivered.
  • the steam is controlled by the regulating valve core 5 to control the steam input amount.
  • the steam When the steam is cooled by the wall of the desuperheating water pipe 10 at a small opening degree, it is mixed with the desuperheating water to better achieve the cooling effect, and is in a fully open state.
  • the secondary steam pipe 1 When a part of the steam is cooled by the wall of the desuperheating water pipe 10, and then mixed with the desuperheating water, another part of the primary steam is decompressed by the valve core 5 and directly enters mixed with the desuperheating water; the secondary steam pipe 1 is provided with The primary steam pipe 1-1 is perpendicular to one end of the secondary steam pipe 1, and the actuator 2 is fixedly connected to the second steam pipe 1, and the desuperheating water conveying device 3 is fixedly connected to the actuator 2, and one end of the decompression and pressure reducing mechanism is fixedly connected with the executing device 2, Changed the original Reduction Valve style installation, improved conditioning valve temperature regulation accuracy, while also reducing the installation space of the entire apparatus more compact.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Multiple-Way Valves (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种一体式减温减压装置，包括二次蒸汽管道（1）和设置在二次蒸汽管道（1）内的减温减压机构，减温减压机构包括上阀盖（4）和阀芯（5），阀芯（5）上开设有若干降压孔，阀芯（5）的一端插设有阀杆（9），阀杆（9）靠近阀芯（5）的一端开设有输水通道（9-1），阀杆（9）的外周面开设有若干与输水通道（9-1）连通的进水孔（9-2），阀芯（5）另一端插设有减温水管（10），减温水管（10）靠近阀杆（9）的一端开设有出水道（10-1），出水道（10-1）与输水通道（9-1）连通，减温水管（10）远离阀芯（5）的一端的外周面开设有若干出水孔（10-2），出水孔（10-2）与出水道（10-1）连通。该装置提高了一次蒸汽与减温水的接触面积，保证了良好的减温减压效果，调节精度高，且结构紧凑。

Description

一体式减温减压装置 技术领域
本发明涉及阀门制造技术领域，尤其是涉及一种一体式减温减压装置。
背景技术
减温减压装置是现代工业中热电联产、集中供热或供汽及轻工、电力、化工、纺织等企业在热能工程中广泛应用的一种蒸汽热能参数转变装置和利用余热的节能装置，通过减温减压装置，把用户提供的蒸汽参数降到用户需要的温度和压力，以满足用户的要求，并且能够充分节约热能，合理使用热能。
现有减温减压装置的减温水与一次蒸汽的接触面积小，影响减温减压效果，导致温度控制不准确，反应慢，减温是通过减温水在减温器中雾化、升温和汽化来实现的，现有减温减压装置安装空间大，一次蒸汽进入与二次蒸汽输出为水平方向，减温减压装置垂直安装与一次蒸汽与二次蒸汽之间。
发明内容
本发明要解决的技术问题是：为了解决现有减温减压装置的减温水与一次蒸汽的接触面积小的问题，现提供了一体式减温减压装置。
本发明解决其技术问题所采用的技术方案是：一种一体式减温减压装置，包括二次蒸汽管道和设置在二次蒸汽管道内的减温减压机构，所述减温减压机构包括上阀盖和阀芯，所述阀芯上开设有若干降压孔，所述阀芯的一端插设有阀杆，所述阀杆靠近所述阀芯的一端开设有输水通道，所述阀杆的外周面开设有若干与所述输水通道连通的进水孔，所述阀芯另一端插设有减温水管，所述减温水管靠近所述阀杆的一端开设有出水道，所述出水道与所述输水通道连通， 所述减温水管远离所述阀芯的一端的外周面开设有若干出水孔，所述出水孔与所述出水道连通，通过通入减温水，使减温减压同时进行，增加了减温水与一次蒸汽的接触面积，保证了良好的减温减压效果。
为了使阀芯能有更好的减温减压效果，进一步地，还包括套管，所述套管套设在所述减温水管上，所述减温水管与所述套管之间形成空腔，所述套管与所述阀芯固定连接，所述降压孔包括主减压孔和副减压孔，所述主减压孔为开设在所述阀芯的若干圈第一通，所述副减压孔为开设在阀芯上的第二通孔，所述第二通孔与所述空腔连通，当阀芯处于在小开度时，一次蒸汽通过第二通孔与减温水管管壁降温后再与减温水混合，能够更好的达到减温减压效果，在阀芯处于完全打开的状态时，一部分一次蒸汽于减温水管管壁接触降温后，再与减温水混合，另一部分一次蒸汽由阀芯减压后直接进入与减温水混合。
进一步地，所述阀芯与所述套管接触面之间开设有环形凹槽，所述环形凹槽与所述第二通孔连通，所述套管上开设有与所述环形凹槽连通的第三通孔，所述第三通孔与所述空腔连通。
为了能够更好的控制减温水，进一步地，所述阀芯与阀杆上滑动设置有与其相匹配的上阀盖，由于阀芯与阀杆上滑动设置有与其相匹配的上阀盖，上阀盖能够控制减温水进入阀芯的流量，能按需求供给。
为了减小设备的安装空间，进一步地，所述二次蒸汽管道上设置有与其垂直的一次蒸汽管道，所述二次蒸汽管道的一端固定连接有执行装置，所述执行装置上固定连接有减温水输送装置，所述减温减压机构一端与所述执行装置固定连接，由于改变了原有一体式减温减压阀的安装方式，提高了减温减压阀的温度调节精度，同时也减小了整个设备的安装空间，结构更加紧凑。
为了使套管与阀芯固定牢固可靠，进一步地，所述套管热装固定在所述阀芯上，由于套管热装固定在阀芯上，套管与阀芯产用热装配合，降低零件的加工成本，节省材料，同时也保证了套管与阀芯固定牢固可靠。
为了使阀杆与减温水管工作稳定可靠，进一步地，所述阀杆与所述减温水管的接触面之间设有金属垫片，所述阀杆上位于所述阀杆和所述阀芯之间套设有金属垫片，由于阀杆与减温水管的接触面之间设有金属垫片，阀杆上位于阀杆和阀芯之间套设有金属垫片，防止减温水管和阀杆相互碰撞而损坏，保证阀杆与减温水管工作稳定可靠。
本发明的有益效果是：本发明一体式减温减压装置在运行时，通过通入减温水，使减温减压同时进行，增加了减温水与一次蒸汽的接触面积，保证了良好的减温减压效果；当阀芯处于在小开度时，一次蒸汽通过第二通孔与减温水管管壁降温后再与减温水混合，能够更好的达到减温减压效果，在阀芯处于完全打开的状态时，一部分一次蒸汽于减温水管管壁接触降温后，再与减温水混合，另一部分一次蒸汽由阀芯减压后直接进入与减温水混合；由于阀芯与阀杆上滑动设置有与其相匹配的上阀盖，上阀盖能够控制减温水进入阀芯的流量，能按需求供给；改变了原有一体式减温减压阀的安装方式，提高了减温减压阀的温度调节精度，同时也减小了整个设备的安装空间，结构更加紧凑；由于套管热装固定在阀芯上，套管与阀芯产用热装配合，降低零件的加工成本，节省材料，同时也保证了套管与阀芯固定牢固可靠；由于阀杆与减温水管的接触面之间设有金属垫片，阀杆上位于阀杆和阀芯之间套设有金属垫片，防止减温水管和阀杆相互碰撞而损坏，保证阀杆与减温水管工作稳定可靠，本发明提高了一次蒸汽与减温水的接触面积，保证了良好的减温减压效果，调节精度高，且 结构紧凑。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明一体式减温减压装置的主视图；
图2是本发明一体式减温减压装置的减温减压机构的结构示意图；
图3是本发明一体式减温减压装置的减温减压机构的主视图；
图4是图3中A的局部放大图；
图5是本发明一体式减温减压装置的上阀盖的结构示意图；
图6是本发明一体式减温减压装置的阀杆的结构示意图；
图7是本发明一体式减温减压装置的减温水管的结构示意图；
图8是本发明一体式减温减压装置的阀芯的结构示意图；
图9是本发明一体式减温减压装置的套管的结构示意图。
图中：1、二次蒸汽管道，1-1、一次蒸汽管道，2、执行装置，3、减温水输送装置，4、上阀盖，5、阀芯，6、套管，7、第一通孔，8、第二通孔，9、阀杆，9-1、输水通道，9-2、进水孔，10、减温水管，10-1、出水道，10-2、出水孔，11、空腔，12、环形凹槽，13、第三通孔，14、金属垫片。
具体实施方式
现在结合附图对本发明做进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
实施例1
如图1、2、6、7、8和9所示，一种一体式减温减压装置，包括二次蒸汽管道1和设置在二次蒸汽管道1内的减温减压机构，所述减温减压机构包括上阀盖4和阀芯5，所述阀芯5上开设有若干降压孔，所述阀芯5的一端插设有阀杆9，所述阀杆9靠近所述阀芯5的一端开设有输水通道9-1，所述阀杆9的外周面开设有若干与所述输水通道9-1连通的进水孔9-2，所述阀芯5另一端插设有减温水管10，所述减温水管10靠近所述阀杆9的一端开设有出水道10-1，所述出水道10-1与所述输水通道9-1连通，所述减温水管10远离所述阀芯5的一端的外周面开设有若干出水孔10-2，所述出水孔10-2与所述出水道10-1连通。
如图2、3和4所示，还包括套管6，所述套管6套设在所述减温水管10上，所述减温水管10与所述套管6之间形成空腔11，所述套管6与所述阀芯5固定连接，所述降压孔包括主减压孔和副减压孔，所述主减压孔为开设在所述阀芯5的若干圈第一通孔7，所述副减压孔为开设在阀芯5上的第二通孔8，所述第二通孔8与所述空腔11连通。
如图3和4所示，所述阀芯5与所述套管6接触面之间开设有环形凹槽12，所述环形凹槽12与所述第二通孔8连通，所述套管6上开设有与所述环形凹槽12连通的第三通孔13，所述第三通孔13与所述空腔11连通。
如图2、3和5所示，所述阀芯5与阀杆9上滑动设置有与其相匹配的上阀盖4。
如图1所示，所述二次蒸汽管道1上设置有与其垂直的一次蒸汽管道1-1，所述二次蒸汽管道1的一端固定连接有执行装置2，所述执行装置2上固定连接有减温水输送装置3，所述减温减压机构一端与所述执行装置2固定连接；
所述套管6热装固定在所述阀芯5上。
如图3和4所示，所述阀杆9与所述减温水管10的接触面之间设有金属垫片14，所述阀杆9上位于所述阀杆9和所述阀芯5之间也设有金属垫片14。
上述一体式减温减压装置在运行时，首先通过执行装置2调节阀杆9，调节上阀盖4控制减温水，减温水由减温水输送装置3输入，减温水通过进水孔9-2进入阀杆9的输水通道9-1，并由输水通道9-1进入减温水管10的出水道10-1，再由出水孔10-2排出，同时一次蒸汽管道1-1输送一次蒸汽，通过调节阀芯5控制一次蒸汽输入量，当在小开度时候一次蒸汽通过减温水管10管壁降温后在与减温水混合，能够更好的达到降温效果，在处于完全打开的状态时，一部分一次蒸汽于减温水管10管壁接触降温后，再与减温水混合，另一部分一次蒸汽由阀芯5减压后直接进入与减温水混合；所述二次蒸汽管道1上设置有与其垂直的一次蒸汽管道1-1，二次蒸汽管道1的一端固定连接有执行装置2，执行装置2上固定连接有减温水输送装置3，减温减压机构一端与执行装置2固定连接，改变了原有一体式减温减压阀的安装方式，提高了减温减压阀的温度调节精度，同时也减小了整个设备的安装空间，结构更加紧凑。
上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。

Claims (7)

  1. 一种一体式减温减压装置，包括二次蒸汽管道(1)和设置在二次蒸汽管道(1)内的减温减压机构，其特征在于：所述减温减压机构包括上阀盖(4)和阀芯(5)，所述阀芯(5)上开设有若干降压孔，所述阀芯(5)的一端插设有阀杆(9)，所述阀杆(9)靠近所述阀芯(5)的一端开设有输水通道(9-1)，所述阀杆(9)的外周面开设有若干与所述输水通道(9-1)连通的进水孔(9-2)，所述阀芯(5)另一端插设有减温水管(10)，所述减温水管(10)靠近所述阀杆(9)的一端开设有出水道(10-1)，所述出水道(10-1)与所述输水通道(9-1)连通，所述减温水管(10)远离所述阀芯(5)的一端的外周面开设有若干出水孔(10-2)，所述出水孔(10-2)与所述出水道(10-1)连通。
  2. 根据权利要求1所述的一体式减温减压装置，其特征在于：还包括套管(6)，所述套管(6)套设在所述减温水管(10)上，所述减温水管(10)与所述套管(6)之间形成空腔(11)，所述套管(6)与所述阀芯(5)固定连接，所述降压孔包括主减压孔和副减压孔，所述主减压孔为开设在所述阀芯(5)上的若干圈第一通孔(7)，所述副减压孔为开设在阀芯(5)上的第二通孔(8)，所述第二通孔(8)与所述空腔(11)连通。
  3. 根据权利要求2所述的一体式减温减压装置，其特征在于：所述阀芯(5)与所述套管(6)接触面之间开设有环形凹槽(12)，所述环形凹槽(12)与所述第二通孔(8)连通，所述套管(6)上开设有与所述环形凹槽(12)连通的第三通孔(13)，所述第三通孔(13)与所述空腔(11)连通。
  4. 根据权利要求1所述的一体式减温减压装置，其特征在于：所述阀芯(5)与阀杆(9)上滑动设置有与其相匹配的上阀盖(4)。
  5. 根据权利要求1所述的一体式减温减压装置，其特征在于：所述二次蒸 汽管道(1)上设置有与其垂直的一次蒸汽管道(1-1)，所述二次蒸汽管道(1)的一端固定连接有执行装置(2)，所述执行装置(2)上固定连接有减温水输送装置(3)，所述减温减压机构一端与所述执行装置(2)固定连接。
  6. 根据权利要求3所述的一体式减温减压装置，其特征在于：所述套管(6)热装固定在所述阀芯(5)上。
  7. 根据权利要求1所述的一体式减温减压装置，其特征在于：所述阀杆(9)与所述减温水管(10)的接触面之间设有金属垫片(14)，所述阀杆(9)上位于所述阀杆(9)和所述阀芯(5)之间也设有金属垫片(14)。
PCT/CN2016/112269 2016-03-25 2016-12-27 一体式减温减压装置 WO2017161941A1 (zh)

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CN111678047B (zh) * 2020-05-15 2021-11-23 宁波市北仑精诚设备安装有限公司 一种蒸汽管道
CN112484014B (zh) * 2020-11-30 2024-04-26 江苏盐阜电站阀门辅机制造有限公司 一种便于调节的减温减压器
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