Desuperheating water regulating valve

Abstract

The utility model discloses a desuperheating water regulating valve, and relates to the technical field of control valves. Comprising a valve cover and a valve body which are connected with each other through a bolt, a stepped inner cavity is formed in the valve body, a water inlet channel and a water outlet channel are formed in the valve body, the water inlet channel and the water outlet channel are respectively communicated with the stepped inner cavity, a temperature reduction adjusting assembly is arranged in the stepped inner cavity, and the temperature reduction adjusting assembly comprises a valve sleeve part, a guide valve seat part and a temperature reduction adjusting part. The temperature reduction adjusting part is arranged between the water inlet cavity channel and the valve sleeve part in a sliding mode, a plurality of through-flow holes are formed in the temperature reduction adjusting part, the stepped inner cavity and the valve sleeve part are communicated through the through-flow holes, the circulation area is changed by adjusting the volume of the temperature reduction adjusting part extending into the valve sleeve part, and then the flow flowing out of the water outlet cavity channel is adjusted. The structure of the desuperheating water regulating valve is simplified, the complexity is reduced, and the desuperheating effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to control valve technical field, especially relate to a desuperheating water regulating valve. BACKGROUND

[0002] Steam, this in industrial production and daily life widely used energy carrier, its pressure and temperature accurate regulation is important to guarantee system efficiency and safety. Desuperheating water regulating valve, as the core component in the process of steam temperature, pressure regulation, its performance directly influences the quality of steam and system stable operation.

[0003] When the boiler or steam engine runs fluctuation, or need to reduce the temperature of water and steam temperature to the required temperature value, it according to the sensor signal or the temperature signal sent to it by the adjusted medium, automatically open or close desuperheating water regulating valve to adjust the desuperheating water quantity, make the temperature parameter control in the system safety range, or control in the system operation requirement parameter range.

[0004] In the application disclosure no. CN213145538U Chinese utility model application file disclosed a kind of desuperheating water regulating valve, including valve body, valve cover and valve seat, water inlet passage and water outlet passage are set up on valve body, main valve core is installed in valve seat, the upper portion of valve seat is connected with valve sleeve, first through-flow hole is set up on main valve core, pilot valve core is installed in first through-flow hole, valve stem is connected on pilot valve core, the upper portion of first through-flow hole wall is provided with gland, second through-flow hole is set up on valve sleeve, third through-flow hole is set up on main valve core, third through-flow hole is communicated with first through-flow hole by connecting hole, pressure relief valve core is arranged in third through-flow hole, first flow guide hole is set up on valve seat, second flow guide hole is set up on main valve core, throttling sleeve is set up with the third flow guide hole being communicated with water inlet passage. But the structure of the designed desuperheating water regulating valve is complex, and the flow control and desuperheating effect is not good. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of desuperheating water regulating valve, overcome the technical problems existing in background art, simplify desuperheating water regulating valve structure, reduce complexity, and then improve the effect of desuperheating. Specific technical solutions are as follows:

[0006] A kind of desuperheating water regulating valve, including the valve cover and valve body being connected by bolt, the stepped inner cavity is formed in the valve body, water inlet passage and water outlet passage are set up on the valve body, the stepped inner cavity is communicated with the water inlet passage and water outlet passage respectively,

[0007] The stepped inner cavity includes water inlet channel and water outlet channel being communicated with each other from top to bottom, the diameter of the water inlet channel is greater than the diameter of the water outlet channel, the water inlet passage is communicated with the water inlet channel, and the water outlet passage is communicated with the water outlet channel;

[0008] The temperature reducing adjusting assembly is arranged in the stepped inner cavity, and comprises a valve sleeve part, a guide valve seat part and a temperature reducing adjusting part, the guide valve seat part is installed on the valve cover, the valve sleeve part is installed in the water outlet cavity, and the temperature reducing adjusting part is slidingly arranged between the water inlet cavity and the valve sleeve part; the volume of the temperature reducing adjusting part extending into the valve sleeve part is adjusted to adjust the flow rate of water flowing out of the water outlet cavity.

[0009] Preferably, the valve sleeve part comprises a containing end cover, a first-stage flow guide pipe, a second-stage flow guide pipe and a water nozzle connected in sequence, the water nozzle is installed on the second-stage flow guide pipe, the diameter of the first-stage flow guide pipe is larger than that of the second-stage flow guide pipe, and the valve sleeve part is fixed on the water outlet cavity through the containing end cover.

[0010] Preferably, the diameter of the water outlet cavity is equal to that of the second-stage flow guide pipe.

[0011] Preferably, the guide valve seat part is coaxially arranged with the valve sleeve part, and comprises a mounting end cover, adjusting bolts, a guide sleeve rod and a guide shaft sleeve, the guide sleeve rod and the guide shaft sleeve are respectively installed on opposite ends of the mounting end cover, the guide valve seat part is threadedly connected with the valve cover through the guide shaft sleeve, the adjusting bolts are oppositely installed on the mounting end cover, and the bolt heads of the adjusting bolts abut against the upper surface of the valve cover.

[0012] Preferably, the temperature reducing adjusting part comprises a valve rod, a cut-off end cover and a valve core connected in sequence, the valve rod is slidingly arranged on the guide valve seat part, one end of the valve rod extending out of the guide sleeve rod is connected with an actuating mechanism, the inner diameter of the first-stage flow guide pipe is equal to the diameter of the valve core, the diameter of the cut-off end cover is larger than that of the valve core, the valve core is slidingly arranged between the water inlet cavity and the first-stage flow guide pipe through the driving of the actuating mechanism, and the valve core is provided with a plurality of flow-through holes in the length direction.

[0013] Preferably, the valve core is provided with a plurality of flow-through holes, the flow-through holes are spirally arranged on the valve core, and the valve core is connected with the water inlet cavity and the first-stage flow guide pipe through the flow-through holes.

[0014] Preferably, the containing end cover is provided with a groove corresponding to the cut-off end cover.

[0015] Preferably, the cut-off end cover is provided with sealing rubber pads on opposite ends.

[0016] Preferably, the valve sleeve part is made of stainless steel.

[0017] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0018] The utility model provides a desuperheating water regulating valve, through optimizing desuperheating water regulating valve structure, reduced structural complexity, through increasing the number of through -flow hole who arranges on desuperheating regulating part, to improve the effect of desuperheating and the ability of controlling flow.

[0019] The utility model discloses simple structure, convenient operation, through adjusting the volume of desuperheating regulating part to extend into the valve sleeve part to change the area of flow, and then adjust the flow from the water outlet cavity. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment description needed to use the drawing briefly introduce. In all drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0021] Fig. 1 It is the whole installation structure schematic diagram of the utility model.

[0022] Fig. 2 It is the desuperheating regulating assembly structure schematic diagram of the utility model.

[0023] Fig. 3 It is the desuperheating regulating part structure schematic diagram of the utility model.

[0024] Main drawing mark explanation:

[0025] 100-bolt, 200-valve cover, 300-valve body, 310-step inner cavity, 311-water inlet cavity, 312-water outlet cavity, 320-water inlet passage, 330-water outlet passage, 400-desuperheating regulating assembly, 410-valve sleeve part, 411-holding end cover, 412-primary flow guide pipe, 413-secondary flow guide pipe, 414-water nozzle, 420-guiding valve seat part, 421-mounting end cover, 422-adjusting bolt, 423-guiding sleeve rod, 424-guiding shaft sleeve, 430-desuperheating regulating part, 431-valve rod, 432-interception end cover, 433-valve core. DETAILED DESCRIPTION

[0026] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the utility model.

[0030] Embodiment

[0031] As Figs. 1 to 3 shown, a temperature reducing water regulating valve, including through bolt 100 mutually connected valve cover 200 and valve body 300, the valve body 300 is formed with ladder inner chamber 310, the valve body 300 is provided with water inlet channel 320 and water outlet channel 330, the water inlet channel 320 with water outlet channel 330 is communicated with the ladder inner chamber 310 respectively;

[0032] Preferably, the ladder inner chamber 310 includes water inlet channel 311 and water outlet channel 312 that are communicated with each other from top to bottom, the diameter of the water inlet channel 311 is greater than the diameter of the water outlet channel 312, the water inlet channel 320 is communicated with the water inlet channel 311, and the water outlet channel 330 is communicated with the water outlet channel 312;

[0033] In some preferred embodiments, the stepped inner cavity 310 is provided with a temperature reduction adjusting assembly 400, which comprises a valve sleeve part 410, a guide valve seat part 420 and a temperature reduction adjusting part 430. The guide valve seat part 420 is installed on the valve cover 200, the valve sleeve part 410 is installed in the water outlet channel 312, and the temperature reduction adjusting part 430 is slidingly arranged between the water inlet channel 311 and the valve sleeve part 410. The flow rate from the water outlet channel 312 is adjusted by adjusting the volume of the temperature reduction adjusting part 430 extending into the valve sleeve part 410. It is worth mentioning that the valve sleeve part 410 is made of stainless steel.

[0034] In some preferred embodiments, the valve sleeve part 410 comprises a containing end cover 411, a primary flow guide pipe 412, a secondary flow guide pipe 413 and a water nozzle 414 connected in sequence. The water nozzle 414 is installed on the secondary flow guide pipe 413, and the diameter of the primary flow guide pipe 412 is greater than that of the secondary flow guide pipe 413. A clamping groove is provided on the upper end surface of the water outlet channel 312, and the size of the containing end cover 411 is adapted to the clamping groove so that the valve sleeve part 410 can be fixedly placed on the water outlet channel 312. The diameter of the water outlet channel 312 is equal to that of the secondary flow guide pipe 413, so that the secondary flow guide pipe 413 can be inserted into the water outlet channel 312.

[0035] In some preferred embodiments, the guide valve seat part 420 is coaxially arranged with the valve sleeve part 410. The guide valve seat part 420 comprises a mounting end cover 421, adjusting bolts 422, a guide sleeve rod 423 and a guide shaft sleeve 424. The guide sleeve rod 423 and the guide shaft sleeve 424 are respectively installed on opposite ends of the mounting end cover 421 and are in communication with each other. The guide valve seat part 420 is threadedly connected with the valve cover 200 through the guide shaft sleeve 424. The two adjusting bolts 422 are oppositely installed on the mounting end cover 421. The bolt head of the adjusting bolt 422 abuts against the upper surface of the valve cover 200. The distance between the mounting end cover 421 and the valve cover 200 is adjusted by the adjusting bolt 422, and the impact force of subsequent driving can also be borne by the adjusting bolt 422.

[0036] In some preferred embodiments, the temperature reducing adjusting part 430 comprises a valve stem 431, a cut-off end cover 432 and a valve core 433 connected in sequence, the valve stem 431 is slidably arranged on the guide valve seat part 420, one end of the valve stem 431 extending out of the guide sleeve rod 423 is connected with an actuator, the inner diameter of the primary flow guide pipe 412 is equal to the diameter of the valve core 433, the diameter of the cut-off end cover 432 is greater than the diameter of the valve core 433, by driving of the actuator, the valve core 433 slides between the water inlet channel 311 and the primary flow guide pipe 412, the valve core 433 is provided with a plurality of through-flow holes in the length direction, the volume of the valve core 433 extending into the valve sleeve part 410 is adjusted by the actuator, so as to realize the adjustment of the flow. Further, the through-flow holes are arranged in a spiral manner on the valve core 433, the water inlet channel 311 and the primary flow guide pipe 412 are communicated by the through-flow holes of the valve core 433. It is worth mentioning that the number of the through-flow holes is increased by 10% compared with the number of the through-flow holes of a conventional desuperheating water nozzle (desuperheating water regulating valve), thereby successfully increasing the single-machine low-pressure heating capacity from 90 t / h to 125 t / h, and increasing the flexibility of the low-pressure steam operation mode.

[0037] In order to ensure the airtightness between the cut-off end cover 432 and the upper end surface of the water outlet channel 312 when the water outlet channel 312 is closed, a sealing rubber pad is arranged on the end surface of the cut-off end cover 432, and in order to prevent the valve core 433 from colliding with the lower end surface of the guide shaft sleeve 424 when the valve core 433 is lifted to the highest height in the stepped inner cavity 310, the sealing rubber pad is arranged on the opposite surfaces of the cut-off end cover 432. The pouring end cover 411 is provided with a groove corresponding to the cut-off end cover 432

[0038] In summary, the utility model provides a kind of desuperheating water regulating valve, by improving the desuperheating water regulating valve, increase the number of through-flow holes arranged on temperature reducing adjusting part, to improve the effect of desuperheating and the ability of flow control, the structure of the design is simple, easy to operate, by adjusting the volume of temperature reducing adjusting part extending into valve sleeve part to change the area of flow, and then the flow from water outlet channel is adjusted.

[0039] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A desuperheating water regulating valve, comprising a valve cover (200) and a valve body (300) connected with each other by bolts (100), a stepped inner cavity (310) formed in the valve body (300), a water inlet channel (320) and a water outlet channel (330) provided on the valve body (300), and the water inlet channel (320) and the water outlet channel (330) respectively communicating with the stepped inner cavity (310), characterized in that the stepped inner cavity (310) comprises a water inlet cavity (311) and a water outlet cavity (312) communicating with each other from top to bottom, the diameter of the water inlet cavity (311) is greater than that of the water outlet cavity (312), the water inlet channel (320) communicates with the water inlet cavity (311), and the water outlet channel (330) communicates with the water outlet cavity (312). The desuperheating regulating assembly (400) is arranged in the stepped inner cavity (310), the desuperheating regulating assembly (400) comprises a valve sleeve part (410), a guide valve seat part (420) and a desuperheating regulating part (430), the guide valve seat part (420) is installed on the valve cover (200), the valve sleeve part (410) is installed in the water outlet cavity (312), the desuperheating regulating part (430) is slidably arranged between the water inlet cavity (311) and the valve sleeve part (410), and the flow rate of water flowing out of the water outlet cavity (312) is adjusted by adjusting the volume of the desuperheating regulating part (430) extending into the valve sleeve part (410). The valve sleeve part (410) comprises a containing end cover (411), a primary flow guide pipe (412), a secondary flow guide pipe (413) and a water nozzle (414) connected in sequence, the water nozzle (414) is installed on the secondary flow guide pipe (413), the diameter of the primary flow guide pipe (412) is greater than that of the secondary flow guide pipe (413), and the valve sleeve part (410) is fixedly placed on the water outlet cavity (312) through the containing end cover (411).

2. The temperature reducing water regulating valve according to claim 1, wherein The diameter of the water outlet cavity (312) is equal to that of the secondary flow guide pipe (413).

3. A desuperheating water regulating valve according to claim 2, wherein The guide valve seat part (420) is coaxially arranged with the valve sleeve part (410), the guide valve seat part (420) comprises a mounting end cover (421), adjusting bolts (422), a guide sleeve rod (423) and a guide shaft sleeve (424), the guide sleeve rod (423) and the guide shaft sleeve (424) are respectively installed on opposite ends of the mounting end cover (421), the guide valve seat part (420) is threadedly connected with the valve cover (200) through the guide shaft sleeve (424), the two adjusting bolts (422) are oppositely installed on the mounting end cover (421), and the bolt head of the adjusting bolt (422) abuts against the upper surface of the valve cover (200).

4. The tempered water regulating valve according to claim 2, wherein ​ 5. A temperature reducing water regulating valve according to claim 4, wherein The temperature reducing adjusting part (430) comprises a valve stem (431), a cut-off end cover (432) and a valve core (433) connected in sequence, the valve stem (431) is slidably arranged on the guide valve seat part (420), one end of the valve stem (431) extending out of the guide sleeve stem (423) is connected with an actuator, the inner diameter of the primary flow guide pipe (412) is equal to the diameter of the valve core (433), the diameter of the cut-off end cover (432) is greater than the diameter of the valve core (433), the valve core (433) slides between the water inlet cavity (311) and the primary flow guide pipe (412) through the driving of the actuator; the valve core (433) is provided with a plurality of flow-through holes in the length direction.

6. A temperature reducing water regulating valve according to claim 5, wherein The plurality of flow-through holes are arranged in a spiral manner on the valve core (433), the valve core (433) communicates the water inlet cavity (311) with the primary flow guide pipe (412) through the flow-through holes.

7. A temperature reducing water regulating valve according to claim 5, wherein The containing end cover (411) is provided with a groove corresponding to the cut-off end cover (432).

8. A temperature reducing water regulating valve according to claim 7, wherein The opposite ends of the cut-off end cover (432) are provided with sealing rubber pads.

9. The tempered water regulating valve according to claim 1, wherein The valve sleeve part (410) is made of stainless steel.

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