CN208221639U - The pneumatic steam converter valve of pressure balance type lower part spray cooling - Google Patents
The pneumatic steam converter valve of pressure balance type lower part spray cooling Download PDFInfo
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- CN208221639U CN208221639U CN201820537287.5U CN201820537287U CN208221639U CN 208221639 U CN208221639 U CN 208221639U CN 201820537287 U CN201820537287 U CN 201820537287U CN 208221639 U CN208221639 U CN 208221639U
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- flap
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- valve body
- bonnet
- valve seat
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Abstract
The utility model discloses a kind of pneumatic steam converter valves of pressure balance type lower part spray cooling, it include: valve body, bonnet, is provided with by upper connection bolt and upper attaching nut in the upper end of the valve body, bottom flange is provided with by lower connection bolt and lower attaching nut in the lower end of the valve body, intake channel and exit passageway are provided in the valve body, side in the valve body close to intake channel is provided with balance set, side in the valve body close to exit passageway is provided with valve seat, several first through hole are evenly arranged in the middle part of the valve seat, flap is provided between the balance set and valve seat, the upper end of the flap is slidably arranged in balance set, the lower end of the flap is slidably arranged in valve seat, several throttle orifices are evenly arranged on the flap in the valve seat, it is arranged inside the lower end of the flap There is slide.
Description
Technical field
The utility model relates to a kind of valve more particularly to a kind of pneumatic pressure and temperature reducings of pressure balance type lower part spray cooling
Valve.
Background technique
The steam for generating high temperature and pressure in the Thermal Power Engineerings such as large power plant and chemical plant after boiler combustion is modernized, but different
The temperature of steam needed for technological process apparatus and air pressure are all different, and in order to guarantee that high saturation conveys, boiler is produced
Raw temperature and air pressure often needed for remote super some position equipments, needs to carry out ability after pressure and temperature reducing by steam converter valve
Normal use.Steam temperature reducing and pressure reducing valve used at present is primarily present following defect: one, flap open during due to
Flap two-way pressure is inconsistent, cannot reach pressure balance, and valve rod needs biggish pulling force that flap could be driven mobile, shortens
The service life of valve rod；Two, the feed flow size of steam is unadjustable, is not able to satisfy the use of distinct device, the scope of application
It is small；Three, the installation of desuperheat (operating) water nozzle is unreasonable, and occupied space is big；Four, the noise of outlet channel is larger.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of good pressure balance type lower part water sprays of using effect
Cool down pneumatic steam converter valve.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: pressure balance type lower part water spray drop
Wet moves steam converter valve, comprising: valve body is provided in the upper end of the valve body by upper connection bolt and upper attaching nut
Valve deck is provided with bottom flange by lower connection bolt and lower attaching nut in the lower end of the valve body, is arranged in the valve body
There are intake channel and exit passageway, the side in the valve body close to intake channel is provided with balance set, in the valve body
Side close to exit passageway is provided with valve seat, and several first through hole are evenly arranged in the middle part of the valve seat, described flat
It is provided with flap between weighing apparatus set and valve seat, the upper end of the flap is slidably arranged in balance set, the lower end sliding of the flap
It is arranged in valve seat, several throttle orifices is evenly arranged on the flap in the valve seat, are set inside the lower end of the flap
It is equipped with slide, desuperheat chamber is provided between the slide and flap, several second through-holes are evenly arranged on the slide,
Be provided with spray boom on the bottom flange, the upper end of the spray boom be slidably arranged in in its mutually matched slide, described
It is evenly arranged with several spray orifices being interconnected with the second through-hole on spray boom in slide, is arranged between the spray boom and valve seat
There is the cavity interconnected with first through hole and desuperheat chamber, pressure is provided with by screw in the balance set of the flap upper end
Plate, filled with flap filler between the pressing plate, flap and balance set, in the balance set between the pressing plate and bonnet,
It is provided with sliding chamber, the third through-hole interconnected with sliding chamber is provided on the pressing plate, is evenly arranged on the flap
Several fourth holes interconnected with third through-hole and desuperheat chamber, the upper end of the flap are connected with valve rod, the valve rod
Upper end stretch out bonnet, be connected with valve rod rotating mechanism, be provided with connection between the valve rod rotating mechanism and bonnet,
The upper end of frame, the connection frame is connected by upper fixing screws with valve rod rotating mechanism, under the lower end of the connection frame passes through
Fixing screws are connected with bonnet, be disposed with from the bottom up between the upper end and valve rod of the bonnet, Packing seat,
Airtight and watertight padding and gland, the gland are connected by fastening screw with bonnet, in the lower end of the bottom flange
Be connected with flange by fixing bolt, desuperheating water water inlet be provided in the flange, be provided in the bottom flange with
The interface channel that desuperheating water water inlet and spray boom are interconnected.
In order to better solve above-mentioned technical problem, the further technical solution that the utility model uses is: the outlet
The bore in channel is greater than the bore of intake channel.
The utility model has the advantages that: the pneumatic steam converter valve of above-mentioned pressure balance type lower part spray cooling, steam can be with
Into flap upper and lower ends, guarantee that two-way pressure balance can be reached when flap is opened, reduces required drawing when valve rod is opened
Power extends the service life of valve rod, can control the feed flow size of steam at any time by several throttle orifices on throat bushing,
Meet the requirement of distinct device, it is applied widely, it is compact-sized using valve body lower portion nozzle desuperheat, it is easy for installation, it saves
Space, the bore of exit passageway are greater than the bore of intake channel, the negotiability of valve are made to become larger, and exit passageway flow velocity is small, full
Sufficient traffic requirement plays the role of the noise reduction that throttles, and using effect is good, and valve seat inputs out the steam after desuperheat using several through-holes
In mouth channel, reinforce the effect of throttling noise reduction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the pneumatic steam converter valve of the utility model pressure balance type lower part spray cooling.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.
In figure: 1, valve body, 2, upper connection bolt, 3, upper attaching nut, 4, bonnet, 5, lower connection bolt, 6, lower connection
Nut, 7, bottom flange, 8, intake channel, 9, exit passageway, 10, balance set, 11, valve seat, 12, first through hole, 13, flap, 14,
Throttle orifice, 15, slide, 16, desuperheat chamber, the 17, second through-hole, 18, spray boom, 19, spray orifice, 20, cavity, 21, screw, 22, pressing plate,
23, flap filler, 24, sliding chamber, 25, third through-hole, 26, fourth hole, 27, valve rod, 28, valve rod rotating mechanism, 29, connection
Frame, 30, upper fixing screws, 31, lower fixing screws, 32, Packing seat, 33, airtight and watertight padding, 34, gland, 35, fastening screw,
36, fixing bolt, 37, flange, 38, desuperheating water water inlet, 39, interface channel.
Specific embodiment
The particular content of the utility model is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the pneumatic steam converter valve of pressure balance type lower part spray cooling, comprising: valve body 1, described
The upper end of valve body 1 is provided with bonnet, 4 by upper connection bolt 2 and upper attaching nut 3, in the case where the lower end of the valve body 1 passes through
Connection bolt 5 and lower attaching nut 6 are provided with bottom flange 7, are provided with intake channel 8 and exit passageway 9 in the valve body 1,
Side in the valve body 1 close to intake channel 8 is provided with balance set 10, close to the one of exit passageway 9 in the valve body 1
Side is provided with valve seat 11, several first through hole 12 is evenly arranged at the middle part of the valve seat 11, in the balance set 10 and valve
It is provided with flap 13 between seat 11, the upper end of the flap 13 is slidably arranged in balance set 10, and the lower end of the flap 13 is sliding
It is dynamic to be arranged in valve seat 11, several throttle orifices 14 are evenly arranged on the flap 13 in the valve seat 11, in the flap 13
Lower end be internally provided with slide 15, desuperheat chamber 16 is provided between the slide 15 and flap 13, on the slide 15
Several second through-holes 17 are evenly arranged with, spray boom 18 is provided on the bottom flange 7, setting is slided in the upper end of the spray boom 18
With its mutually matched slide 15 in, be evenly arranged on the spray boom 18 in the slide 15 several with 17 phase of the second through-hole
Intercommunicated spray orifice 19 is provided between the spray boom 18 and valve seat 11 and is interconnected with first through hole 12 and desuperheat chamber 16
Cavity 20 is provided with pressing plate 22 by screw 21 in the balance set 10 of 13 upper end of flap, in the pressing plate 22, flap 13
It is filled with flap filler 23 between balance set 10, is provided with cunning in the balance set 10 between the pressing plate 22 and bonnet, 4
Chamber 24 is provided with the third through-hole 25 interconnected with sliding chamber 24 on the pressing plate 22, is uniformly arranged on the flap 13
There are several fourth holes 26 interconnected with third through-hole 25 and desuperheat chamber 16, the upper end of the flap 13 is connected with valve rod 27
Connect, the upper end of the valve rod 27 stretches out bonnet, 4 and is connected with valve rod rotating mechanism 28, the valve rod rotating mechanism 28 with it is upper
Connection frame 29 is provided between valve deck 4, the upper end of the connection frame 29 passes through upper fixing screws 30 and 28 phase of valve rod rotating mechanism
Connection, the lower end of the connection frame 29 is connected by lower fixing screws 31 with bonnet, 4, the bonnet, 4 upper end and
Packing seat 32, airtight and watertight padding 33 and gland 34 are disposed between valve rod 27 from the bottom up, the gland 34 is logical
It crosses fastening screw 35 to be connected with bonnet, 4, flange 37 is connected with by fixing bolt 36 in the lower end of the bottom flange 7,
It is provided with desuperheating water water inlet 38 in the flange 37, is provided in the bottom flange 7 and desuperheating water water inlet 38 and spray boom
18 interconnected interface channels 39.
As shown in Figure 1 and Figure 2, in the present invention, the bore of the exit passageway 9 is greater than the bore of intake channel 8.
Spray cooling pneumatic steam converter valve in above-mentioned pressure balance type lower part is in use, steam enters valve from intake channel 8
It in body 1, is moved up by valve rod rotating mechanism 28 with ovable valve stem 27, valve rod 27 drives flap 13 to move up, when flap 13
On several throttle orifices 14 when being gradually interconnected with intake channel 8, steam is entered in desuperheat chamber 16 by throttle orifice 14, steam
It is also entered in sliding chamber 24 by fourth hole 26 and third through-hole 25, it is ensured that 13 upper and lower surface pressure balance of flap, valve
Lifting force needed for bar 27 is smaller, and at the same time, desuperheating water enters from the desuperheating water water inlet 38 in flange 37, successively passes through
Interface channel 39, spray boom 18, spray orifice 19 and the second through-hole 17 are mixed with steam into being injected in desuperheat chamber 16 after desuperheat water atomization
Cooling, the steam after cooling successively passes through cavity 20 and first through hole 12 reaches outside 9 exits valve body 1 of exit passageway.
The pneumatic steam converter valve of above-mentioned pressure balance type lower part spray cooling, steam can enter flap upper and lower ends, protect
Card flap can reach two-way pressure balance when opening, reduce required pulling force when valve rod is opened, and extend valve rod uses the longevity
Life, can be controlled the feed flow size of steam at any time by several throttle orifices on throat bushing, meet the use of distinct device
It is required that it is applied widely, it is compact-sized using valve body lower portion nozzle desuperheat, it is easy for installation, save space, the mouth of exit passageway
Diameter is greater than the bore of intake channel, so that the negotiability of valve is become larger, exit passageway flow velocity is small, meets traffic requirement, plays section
The effect of noise reduction is flowed, using effect is good, and valve seat inputs the steam after desuperheat in exit passageway, reinforces throttling
The effect of noise reduction.
Claims (2)
1. the pneumatic steam converter valve of pressure balance type lower part spray cooling, it is characterised in that: include: valve body (1), in the valve body
(1) upper end is provided with bonnet, (4) by upper connection bolt (2) and upper attaching nut (3), in the lower end of the valve body (1)
Lower connection bolt (5) and lower attaching nut (6) are provided with bottom flange (7), are provided with intake channel in the valve body (1)
(8) and exit passageway (9), the side in the valve body (1) close to intake channel (8) is provided with balance set (10), described
The side of exit passageway (9) is provided with valve seat (11) in valve body (1), in the valve seat (11) if in the middle part of be evenly arranged with
Dry first through hole (12), are provided with flap (13) between the balance set (10) and valve seat (11), the flap (13) it is upper
End is slidably arranged in balance set (10), and the lower end of the flap (13) is slidably arranged in valve seat (11), in the valve seat
(11) several throttle orifices (14) are evenly arranged on the flap (13) in, are internally provided with slide in the lower end of the flap (13)
(15), it is provided with desuperheat chamber (16) between the slide (15) and flap (13), is evenly arranged on the slide (15)
Several second through-holes (17), are provided with spray boom (18) on the bottom flange (7), and the upper end of the spray boom (18) is slidably arranged in
With in its mutually matched slide (15), several and the second through-hole is evenly arranged on the spray boom (18) in the slide (15)
(17) interconnected spray orifice (19) is provided with and first through hole (12) and desuperheat between the spray boom (18) and valve seat (11)
The interconnected cavity (20) of chamber (16), is provided with pressure by screw (21) in the balance set (10) of the flap (13) upper end
Plate (22) is filled with flap filler (23) between the pressing plate (22), flap (13) and balance set (10), in the pressing plate
(22) sliding chamber (24) are provided in the balance set (10) between bonnet, (4), are provided on the pressing plate (22) and sliding chamber
(24) interconnected third through-hole (25) is evenly arranged with several and third through-hole (25) and desuperheat on the flap (13)
The interconnected fourth hole (26) of chamber (16), the upper end of the flap (13) are connected with valve rod (27), the valve rod (27)
Upper end stretch out bonnet, (4) be connected with valve rod rotating mechanism (28), in the valve rod rotating mechanism (28) and bonnet, (4)
Between be provided with connection frame (29), the upper end of the connection frame (29) passes through upper fixing screws (30) and valve rod rotating mechanism (28)
It is connected, the lower end of the connection frame (29) is connected by lower fixing screws (31) with bonnet, (4), in the bonnet,
(4) it is disposed with Packing seat (32), airtight and watertight padding (33) and gland from the bottom up between upper end and valve rod (27)
(34), the gland (34) is connected by fastening screw (35) with bonnet, (4), in the lower end of the bottom flange (7)
Flange (37) are connected with by fixing bolt (36), desuperheating water water inlet (38) are provided in the flange (37), described
The interface channel (39) interconnected with desuperheating water water inlet (38) and spray boom (18) is provided in bottom flange (7).
2. the pneumatic steam converter valve of pressure balance type lower part described in accordance with the claim 1 spray cooling, it is characterised in that: described
The bore of exit passageway (9) is greater than the bore of intake channel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820537287.5U CN208221639U (en) | 2018-04-16 | 2018-04-16 | The pneumatic steam converter valve of pressure balance type lower part spray cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820537287.5U CN208221639U (en) | 2018-04-16 | 2018-04-16 | The pneumatic steam converter valve of pressure balance type lower part spray cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221639U true CN208221639U (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820537287.5U Active CN208221639U (en) | 2018-04-16 | 2018-04-16 | The pneumatic steam converter valve of pressure balance type lower part spray cooling |
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| Country | Link |
|---|---|
| CN (1) | CN208221639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
-
2018
- 2018-04-16 CN CN201820537287.5U patent/CN208221639U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
| 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 |
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