CN212004304U - Prevent dead air regulation valve of crystallization card - Google Patents
Prevent dead air regulation valve of crystallization card Download PDFInfo
- Publication number
- CN212004304U CN212004304U CN202020591830.7U CN202020591830U CN212004304U CN 212004304 U CN212004304 U CN 212004304U CN 202020591830 U CN202020591830 U CN 202020591830U CN 212004304 U CN212004304 U CN 212004304U
- Authority
- CN
- China
- Prior art keywords
- crystallization
- valve
- baffle
- nipple joint
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 23
- 230000008025 crystallization Effects 0.000 title claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 210000002445 nipple Anatomy 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 20
- 239000013078 crystal Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 206010010904 Convulsion Diseases 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 230000036461 convulsion Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 11
- 238000001914 filtration Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Filtering Of Dispersed Particles In Gases (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a prevent dead air regulation valve of crystallization card, including circular nipple joint, circular nipple joint bottom fixed mounting has centrifugal fan, and circular nipple joint top fixedly connected with muffler, circular nipple joint internally mounted has adjusting device, and the adjusting device outside fixedly connected with seal box, adjusting device internally mounted has pressure regulating mechanism, and pressure regulating mechanism installs filter mechanism in the front below. The utility model discloses in, under filter mechanism's effect, when the staff used the fire to examine the fan, make the fire examine the fan and pass through centrifugal fan and begin convulsions, when the air is more moist, then humid air and pulverized coal boiler inside hot-air contact, make valve department produce the crystallization easily, thereby lead to the valve card to die, to this inside and vent department of valve, the installation filter screen, the filter screen adopts the active carbon adsorption layer, high temperature resistant material can effectually adsorb the moisture in the air, thereby prevent that the valve crystallization card from dying.
Description
Technical Field
The utility model particularly relates to a prevent dead air regulation valve of crystallization card.
Background
The fire detection fan is an important component in a pulverized coal boiler system, is also one of key equipment related to large interlocking of the 'MFT' of the pulverized coal boiler, and plays an important role in long-period operation of the whole boiler device. In the boiler operation process, often because the fan load changes, the fire detection fan overcurrents tripping operation, or the wind pressure is low excessively, leads to boiler interlocking action to jump the car, adjusts the fire detection wind pressure from the fan export and can lead to adjusting the door front suppress pressure, adjusts the door back pressure low in addition, also leads to "fire detection wind pressure low" or fire detection to burn out easily, causes the jump car.
The existing air volume adjusting valve does not have a mechanism capable of quickly and efficiently adjusting the pressure of a boiler, a mechanism capable of protecting the air volume adjusting valve and preventing wet air from entering crystals, and a mechanism capable of ensuring that the air volume adjusting valve and a fire detection fan are sealed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a prevent the dead air regulation valve of crystallization card to reach quick pressure regulating, integral seal, dehumidification and prevent brilliant purpose.
For solving the technical problem, the utility model provides a pair of prevent dead air regulation valve of crystallization card, including circular nipple joint, circular nipple joint bottom fixed mounting has centrifugal fan, and circular nipple joint top fixedly connected with muffler, circular nipple joint internally mounted has adjusting device, and the adjusting device outside fixedly connected with seal box, adjusting device internally mounted has pressure regulating mechanism, and pressure regulating mechanism installs filter mechanism in the front below, seal mechanism is installed on the top of seal box, the inside vent of having seted up of circular nipple joint, filter mechanism is inside including the filter screen, and filter screen outside fixed mounting has the fixture block, fixture block externally connected has the draw-in groove.
Preferably, the filter screen forms a fixing mechanism through the clamping block, the clamping groove and the adjusting device, and the cross-sectional area of the filter screen is larger than that of the vent.
Preferably, the pressure regulating mechanism is internally provided with a regulating plate, the regulating plate is fixedly provided with a regulating connecting rod outside, the bottom end of the regulating connecting rod is fixedly connected with a movable shaft, an opening indicator is arranged below the front side of the regulating connecting rod, and the opening indicator is internally connected with a fixing pin.
Preferably, the adjusting plate forms a movable structure with the circular short section through the adjusting connecting rod, the movable shaft and the adjusting connecting rod, and the transverse axis of the adjusting plate coincides with the transverse axis of the adjusting connecting rod.
Preferably, the sealing mechanism is internally provided with a baffle, a handle is fixedly mounted on the outer side of the baffle, sliders are fixedly connected to two sides of the baffle, sliding grooves are formed in the outer portions of the sliders in a sliding mode, and hand-screwing bolts are connected to threads inside the baffle.
Preferably, the baffle forms fixed knot with the seal box through the hand is twisted the bolt and is constructed, and the baffle passes through slider, spout and seal box constitutes the activity structure.
Compared with the prior art, the utility model provides a pair of prevent dead air regulation valve of crystallization card has following beneficial effect:
1. the utility model discloses in, under filter mechanism's effect, when the staff used the fire to examine the fan, make the fire examine the fan and pass through centrifugal fan and begin convulsions, when the air is more moist, then humid air and pulverized coal boiler inside hot-air contact, make valve department produce the crystallization easily, thereby lead to the valve card to die, to this inside and vent department of valve, the installation filter screen, the filter screen adopts the active carbon adsorption layer, high temperature resistant material can effectually adsorb the moisture in the air, thereby prevent that the valve crystallization card from dying.
2. The utility model discloses in, under the effect of pressure regulating mechanism, when the fan operation is examined to the fire, the wind pressure that the angle of the circular regulating plate in the middle of the circular nipple joint of accessible adjustment comes the adjustment needs, will adjust the connecting rod after the adjustment and pass through the fixed pin and fix on aperture indicator hole, prevent the regulating plate swing, cause the fan overcurrent tripping operation is examined to the fire, or the wind pressure is low excessively, boiler interlocking action skip car, the wind pressure is examined to the adjustment fire that can be nimble stable, the stability of production operation is improved, and principle simple structure, the simple operation easy to carry out, make the inside wind pressure of boiler stable like this, the air permeability of boiler has been guaranteed, thereby prevent the inside crystallization of boiler.
3. The utility model discloses in, under sealing mechanism's effect, when the staff need adjust the position of regulating plate, open the valve seal box and operate, twist the bolt with the hand earlier and unscrew, hold the pulling with the handle again to make the seal box open, operate its adjusting link, the back that finishes operates, closes the seal box again, installs the sealing washer between baffle and seal box, makes whole sealing when closing, prevents to leak out, prevents the valve crystallization.
Drawings
Fig. 1 is a schematic view of an overall structure of an air volume adjusting valve preventing crystallization and seizure provided by the present invention;
fig. 2 is a schematic structural diagram of an adjusting mechanism provided by the present invention;
fig. 3 is a schematic structural view of the filtering mechanism provided by the present invention;
fig. 4 is a schematic structural diagram of the sealing mechanism provided by the present invention.
Reference numbers in the figures: 1. a circular nipple; 2. a centrifugal fan; 3. a muffler; 4. a sealing box; 5. an adjustment device; 6. a vent; 7. a pressure regulating mechanism; 701. an adjusting plate; 702. adjusting the connecting rod; 703. a movable shaft; 704. an opening indicator; 705. a fixing pin; 8. a filtering mechanism; 801. a filter screen; 802. a clamping block; 803. a card slot; 9. a sealing mechanism; 901. a baffle plate; 902. a handle; 903. a slider; 904. a chute; 905. the bolt is screwed by hand.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, wherein fig. 1 is a schematic view of an overall structure of an air volume adjusting valve for preventing crystallization from being locked according to the present invention; fig. 2 is a schematic structural diagram of an adjusting mechanism provided by the present invention; fig. 3 is a schematic structural view of the filtering mechanism provided by the present invention; fig. 4 is a schematic structural diagram of the sealing mechanism provided by the present invention. An air volume adjusting valve preventing crystallization and blocking comprises a circular short section 1, a centrifugal fan 2, a silencer 3, a sealing box 4, an adjusting device 5, a vent 6, a pressure regulating mechanism 7, an adjusting plate 701, an adjusting connecting rod 702, a movable shaft 703, an opening indicator 704, a fixing pin 705, a filtering mechanism 8, a filtering net 801, a clamping block 802, a clamping groove 803, a sealing mechanism 9, a baffle 901, a handle 902, a sliding block 903, a sliding groove 904 and a hand-screwed bolt 905, wherein the centrifugal fan 2 is fixedly arranged at the bottom end of the circular short section 1, the silencer 3 is fixedly connected at the top end of the circular short section 1, the adjusting device 5 is arranged in the circular short section 1, the sealing box 4 is fixedly connected at the outer side of the adjusting device 5, the pressure regulating mechanism 7 is arranged in the adjusting device 5, the filtering mechanism 8 is arranged below the front surface of the pressure regulating mechanism 7, the sealing mechanism 9 is arranged at the top, the inside filter screen 801 that is included of filter mechanism 8, and filter screen 801 outside fixed mounting has fixture block 802, and fixture block 802 external connection has a draw-in groove 803, and wherein the draw-in groove 803 has been seted up to the inner wall of this valve, and fixed welding between the frame of filter screen 801 and fixture block 802.
Furthermore, the filter screen 801 forms a fixing mechanism with the adjusting device 5 through the fixture block 802 and the fixture groove 803, and the cross-sectional area of the filter screen 801 is larger than that of the vent 6, wherein the filter screen 801 is made of an activated carbon adsorption layer and a high-temperature resistant material, so that the wet air is effectively adsorbed, and the high temperature of the boiler can be resisted.
Further, the pressure regulating mechanism 7 includes a regulating plate 701 inside, a regulating connecting rod 702 is fixedly mounted on the outer side of the regulating plate 701, a movable shaft 703 is fixedly connected to the bottom end of the regulating connecting rod 702, an opening indicator 704 is mounted below the front surface of the regulating connecting rod 702, a fixing pin 705 is connected inside the opening indicator 704, multiple groups of holes are formed in the opening indicator 704, and angle regulation of the regulating plate 701 is facilitated.
Further, the adjusting plate 701 forms a movable structure with the circular short section 1 through the adjusting connecting rod 702, the movable shaft 703, and the transverse axis of the adjusting plate 701 coincides with the transverse axis of the adjusting connecting rod 702, wherein the valve is installed inside the circular short section 1, the adjusting plate 701 can block the flow of the internal vent 6, and a sealing layer is installed between the adjusting plate 701 and the vent 6.
Further, the inside baffle 901 that is included of sealing mechanism 9, and baffle 901 outside fixed mounting has handle 902, the both sides fixedly connected with slider 903 of baffle 901, and the outside sliding connection of slider 903 has spout 904, and the inside threaded connection of baffle 901 has hand-screwed bolt 905, and wherein the sealing washer is installed to the junction between baffle 901 and the seal box 4 for integral seal when closing, thereby prevent to leak out, produce the crystallization.
Further, the baffle 901 and the seal box 4 form a fixed structure through a hand-screwed bolt 905, and the baffle 901 and the seal box 4 form a movable structure through a sliding block 903 and a sliding groove 904, wherein thread grooves are formed in the inner part of the baffle 901 and the inner wall of the seal box 4, so that the hand-screwed bolt 905 can be screwed effectively.
The utility model provides a pair of prevent dead air regulation valve of crystallization card's theory of operation as follows:
when a worker uses the fire detection fan, the fire detection fan starts to draw air through the centrifugal fan 2, when the air is relatively humid, the humid air is contacted with the hot air in the pulverized coal boiler, so that the valve is easy to crystallize, and the valve is blocked, and accordingly, a filter screen 801 is arranged in the valve and at the ventilation opening 6, the filter screen 801 adopts an activated carbon adsorption layer, and is made of high-temperature-resistant materials, so that the moisture in the air can be effectively adsorbed, and the valve is prevented from being blocked, when the fire detection fan operates, the required air pressure can be adjusted by adjusting the angle of a circular adjusting plate 701 in the middle of a circular short section 1, after the adjustment, an adjusting connecting rod 702 is fixed on an opening indicator 704 hole through a fixing pin 705, the adjusting plate 701 is prevented from swinging, so that the fire detection fan trips excessively, or the air pressure is too low, the boiler is interlocked to jump, and the fire detection air pressure, improve the stability of production operation, and principle simple structure, the simple operation is easy to carry out, make the inside wind pressure of boiler stable like this, the air permeability of boiler has been guaranteed, thereby prevent the inside crystallization of boiler, when the staff need adjust the position of regulating plate 701, open valve seal box 4 and operate, screw bolt 905 with the hand earlier and unscrew, hold the pulling with handle 902 again, thereby make seal box 4 open, operate its adjusting rod 702, the back of finishing the operation, close seal box 4 again, install the sealing washer between baffle 901 and seal box 4, make whole sealing when closing, prevent leaking wind, prevent the valve crystallization, just so accomplish the device's theory of operation.
Claims (6)
1. The utility model provides a prevent dead air regulation valve of crystallization card, includes circular nipple joint (1), its characterized in that: circular nipple joint (1) bottom fixed mounting has centrifugal fan (2), and circular nipple joint (1) top fixedly connected with muffler (3), circular nipple joint (1) internally mounted has adjusting device (5), and adjusting device (5) outside fixedly connected with seal box (4), adjusting device (5) internally mounted has pressure regulating mechanism (7), and pressure regulating mechanism (7) openly below installs filter mechanism (8), seal mechanism (9) are installed on the top of seal box (4), circular nipple joint (1) inside vent (6) have been seted up, filter mechanism (8) are inside including filter screen (801), and filter screen (801) outside fixed mounting has fixture block (802), fixture block (802) external connection has draw-in groove (803).
2. The air volume adjusting valve preventing the crystallization from being stuck as claimed in claim 1, characterized in that: the filter screen (801) and the adjusting device (5) form a fixing mechanism through the clamping block (802), the clamping groove (803), and the cross-sectional area of the filter screen (801) is larger than that of the vent (6).
3. The air volume adjusting valve preventing the crystal from being stuck as claimed in claim 1, wherein the pressure regulating mechanism (7) comprises a regulating plate (701) inside, a regulating connecting rod (702) is fixedly installed on the outer side of the regulating plate (701), a movable shaft (703) is fixedly connected to the bottom end of the regulating connecting rod (702), an opening indicator (704) is installed below the front surface of the regulating connecting rod (702), and a fixing pin (705) is connected inside the opening indicator (704).
4. The air volume adjusting valve preventing the crystal from being stuck as claimed in claim 3, wherein the adjusting plate (701) forms a movable structure with the round short joint (1) through an adjusting connecting rod (702), a movable shaft (703), and the transverse axis of the adjusting plate (701) is coincident with the transverse axis of the adjusting connecting rod (702).
5. The anti-crystallization-blocking air volume adjusting valve as claimed in claim 1, characterized in that a baffle (901) is included in the sealing mechanism (9), a handle (902) is fixedly installed on the outer side of the baffle (901), sliders (903) are fixedly connected to two sides of the baffle (901), a sliding groove (904) is slidably connected to the outer portion of each slider (903), and a hand-screwed bolt (905) is connected to the inner portion of the baffle (901) in a threaded manner.
6. The air volume adjusting valve preventing the crystallization from being stuck is characterized in that the baffle (901) and the sealing box (4) form a fixed structure through a hand-screwed bolt (905), and the baffle (901) and the sealing box (4) form a movable structure through a sliding block (903), a sliding groove (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591830.7U CN212004304U (en) | 2020-04-20 | 2020-04-20 | Prevent dead air regulation valve of crystallization card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020591830.7U CN212004304U (en) | 2020-04-20 | 2020-04-20 | Prevent dead air regulation valve of crystallization card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004304U true CN212004304U (en) | 2020-11-24 |
Family
ID=73415347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020591830.7U Expired - Fee Related CN212004304U (en) | 2020-04-20 | 2020-04-20 | Prevent dead air regulation valve of crystallization card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004304U (en) |
-
2020
- 2020-04-20 CN CN202020591830.7U patent/CN212004304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |