CN205639786U - High temperature high pressure atmospheric valve - Google Patents
High temperature high pressure atmospheric valve Download PDFInfo
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- CN205639786U CN205639786U CN201620456699.7U CN201620456699U CN205639786U CN 205639786 U CN205639786 U CN 205639786U CN 201620456699 U CN201620456699 U CN 201620456699U CN 205639786 U CN205639786 U CN 205639786U
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- valve
- valve body
- high temperature
- high pressure
- packing ring
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Abstract
High temperature high pressure atmospheric valve. The valve rod of mainly having solved present high temperature high pressure atmospheric valve can not be fine to the stroke when promoting control, use inconvenient problem. High temperature high pressure atmospheric valve is equipped with the case in its valve body, be connected with the valve rod on the case, is equipped with electric operating mechanism on the valve rod, is equipped with the media channel of L shape in the valve body, and it has a gland packing to be equipped with demountable installation on the valve body, and inside the valve body was located to the gland packing part, the valve rod passed gland packing and bottom cover and is equipped with and prevents moving back the packing ring, prevents moving back packing ring inner wall bottom the gland packing and corresponds the setting. Under the drive of case at the valve rod in the activity, put in place and move back the packing ring with the rear defence and can touch with the gland packing bottom, reach the effect of bit slice, it is more convenient to use.
Description
Technical field
This utility model relates to valve field, specially High Temperature High Pressure atmospheric valve.
Background technology
Emptying application is a most important application program in combined-cycle power plant.The main steam of waste heat boiler must be walked around turbine exhaust in air by these valves when running and just starting, the fastest to guarantee that unit temperature will not rise.This is done because that process line, before allowing steam to pour to condenser by turbine by pass valve, has warmed up.
Applying at this, high temperature main steam (high pressure/middle pressure/low pressure) is bypassed in air, starts, when pressure and temperature rises to a certain specified point in waste heat boiler igniting.Due to control valve, to bear total head poor, and valve and downstream line can produce high noisy and high vibration.Therefore, downstream would generally be installed such as the current limiter such as bubbler or deafener.So design is to provide a back pressure, to limit pressure drop and the noise produced subsequently and vibration for valve.It can be additionally used in and alleviated noise before the system of leaving is introduced in air.
High Temperature High Pressure atmospheric valve includes valve rod, stem bottom is provided with spool, also include the medium channel of L-shaped, so spool can realize blocking medium channel or circulating under the drive of valve rod, but stroke can not well be controlled promoting when by the valve rod of present High Temperature High Pressure atmospheric valve, in-convenience in use.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides High Temperature High Pressure atmospheric valve, and stroke can not well be controlled promoting when by the valve rod mainly solving present High Temperature High Pressure atmospheric valve, inconvenient problem with use.
This utility model be the technical scheme is that
High Temperature High Pressure atmospheric valve, including valve body, it is provided with spool in described valve body, connecting on described spool has valve rod, described valve rod to be provided with motor-operating mechanism, is provided with the medium channel of L-shaped in described valve body, described valve body is provided with and is detachably provided with stuffing box, described stuffing box part is located at valve inner, and described valve rod is arranged with anti-back packing ring through stuffing box and bottom, and described anti-back packing ring is correspondingly arranged with described stuffing box bottom interior wall.
Being provided with wedge-type seal circle between described stuffing box and described valve interior wall, described wedge-type seal circle upper end is additionally provided with packing ring, and described packing ring upper end is pressed with split annulus, and described valve interior wall and described split annulus are correspondingly provided with the mounting groove of snap-fit engagement.
Described valve outer wall and described medium channel are also correspondingly provided with chiller, and described chiller includes water inlet and outlet, are provided with runner, described water inlet and outlet by described flow passage between described chiller and described valve outer wall outer wall.
It is additionally provided with airtight and watertight padding between described stuffing box and described valve rod.
Described anti-back packing ring is made up of 304 steel.
The beneficial effects of the utility model are: High Temperature High Pressure atmospheric valve, it is provided with spool in its valve body, connect on spool and have valve rod, valve rod is provided with motor-operating mechanism, being provided with the medium channel of L-shaped in valve body, valve body is provided with and is detachably provided with stuffing box, and stuffing box part is located at valve inner, valve rod is arranged with anti-back packing ring through stuffing box and bottom, and anti-back packing ring is correspondingly arranged with stuffing box bottom interior wall.Spool is movable under the drive of valve rod when, after putting in place, anti-back packing ring can touch with bottom stuffing box, reaches the effect limited that puts in place, uses convenient.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of one embodiment of this utility model.
Fig. 2 is enlarged drawing at Figure 1A.
Fig. 3 is the cross-sectional schematic of the chiller of one embodiment of this utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings: as shown in the figure, High Temperature High Pressure atmospheric valve, including valve body 1, it is provided with spool 2 in described valve body 1, connect on described spool 2 and have valve rod 3, described valve rod 3 is provided with motor-operating mechanism, the medium channel 11 of L-shaped it is provided with in described valve body 1, described valve body 1 is provided with and is detachably provided with stuffing box 4, it is internal that described stuffing box 4 part is located at valve body 1, described valve rod 3 is arranged with anti-back packing ring 31 through stuffing box 4 and bottom, and described anti-back packing ring 31 is correspondingly arranged with described stuffing box 4 bottom interior wall.High Temperature High Pressure atmospheric valve, it is provided with spool in its valve body, connect on spool and have valve rod, valve rod is provided with motor-operating mechanism, being provided with the medium channel of L-shaped in valve body, valve body is provided with and is detachably provided with stuffing box, and stuffing box part is located at valve inner, valve rod is arranged with anti-back packing ring through stuffing box and bottom, and anti-back packing ring is correspondingly arranged with stuffing box bottom interior wall.Spool is movable under the drive of valve rod when, after putting in place, anti-back packing ring can touch with bottom stuffing box, reaches the effect limited that puts in place, uses convenient.
In the present embodiment, as shown in the figure, it is provided with wedge-type seal circle 41 between described stuffing box 4 and described valve body 1 inwall, described wedge-type seal circle 41 upper end is additionally provided with packing ring 42, described packing ring 42 upper end is pressed with split annulus 43, and described valve body 1 inwall and described split annulus 43 are correspondingly provided with the mounting groove 12 of snap-fit engagement.Being pressed between seal box and valve interior wall by wedge-type seal circle by split annulus, sealing effectiveness is more preferable.
In the present embodiment, as shown in the figure, described valve body 1 outer wall and described medium channel 11 are also correspondingly provided with chiller 5, described chiller 5 includes water inlet 51 and outlet 52, being provided with runner 54 between described chiller 5 and described valve body 1 outer wall outer wall, described water inlet 51 is connected by described runner 54 with outlet 52.The when of use, coolant is added in water inlet, by water pump, coolant is derived from outlet by runner, it can be lowered the temperature the when of flowing through valve outer wall, be suitable for the environment of High Temperature High Pressure.
In the present embodiment, as it can be seen, be additionally provided with airtight and watertight padding between described stuffing box 4 and described valve rod 3.Strengthen sealing effectiveness further, prevent leakage.
In the present embodiment, as it can be seen, described anti-back packing ring 31 is made up of 304 steel.304 steel have excellent stainless decay resistance and preferable anti intercrystalline corrosion performance, and using effect is more preferable.
Embodiment is not construed as restriction of the present utility model, but any based on spirit improvements introduced of the present utility model, all should be within protection domain of the present utility model.
Claims (5)
1. High Temperature High Pressure atmospheric valve, including valve body (1), spool (2) it is provided with in described valve body (1), the upper connection of described spool (2) has valve rod (3), described valve rod (3) is provided with motor-operating mechanism, the medium channel (11) of L-shaped it is provided with in described valve body (1), it is characterized in that: described valve body (1) is provided with and is detachably provided with stuffing box (4), it is internal that described stuffing box (4) part is located at valve body (1), described valve rod (3) is arranged with anti-back packing ring (31) through stuffing box (4) and bottom, described anti-back packing ring (31) is correspondingly arranged with described stuffing box (4) bottom interior wall.
High Temperature High Pressure atmospheric valve the most according to claim 1, it is characterized in that: between described stuffing box (4) and described valve body (1) inwall, be provided with wedge-type seal circle (41), described wedge-type seal circle (41) upper end is additionally provided with packing ring (42), described packing ring (42) upper end is pressed with split annulus (43), and described valve body (1) inwall and described split annulus (43) are correspondingly provided with the mounting groove (12) of snap-fit engagement.
High Temperature High Pressure atmospheric valve the most according to claim 1, it is characterized in that: described valve body (1) outer wall and described medium channel (11) are also correspondingly provided with chiller (5), described chiller (5) includes water inlet (51) and outlet (52), it is provided with runner (54), described water inlet (51) and outlet (52) between described chiller (5) and described valve body (1) outer wall outer wall to be connected by described runner (54).
High Temperature High Pressure atmospheric valve the most according to claim 1, it is characterised in that: it is additionally provided with airtight and watertight padding between described stuffing box (4) and described valve rod (3).
High Temperature High Pressure atmospheric valve the most according to claim 1, it is characterised in that: described anti-back packing ring (31) is made up of 304 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456699.7U CN205639786U (en) | 2016-05-19 | 2016-05-19 | High temperature high pressure atmospheric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456699.7U CN205639786U (en) | 2016-05-19 | 2016-05-19 | High temperature high pressure atmospheric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639786U true CN205639786U (en) | 2016-10-12 |
Family
ID=57057912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620456699.7U Active CN205639786U (en) | 2016-05-19 | 2016-05-19 | High temperature high pressure atmospheric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639786U (en) |
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2016
- 2016-05-19 CN CN201620456699.7U patent/CN205639786U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |