CN220792779U - Air injection prevention device for overflow port of deaerator - Google Patents
Air injection prevention device for overflow port of deaerator Download PDFInfo
- Publication number
- CN220792779U CN220792779U CN202322440445.9U CN202322440445U CN220792779U CN 220792779 U CN220792779 U CN 220792779U CN 202322440445 U CN202322440445 U CN 202322440445U CN 220792779 U CN220792779 U CN 220792779U
- Authority
- CN
- China
- Prior art keywords
- deaerator
- floating ball
- overflow port
- air injection
- water
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 230000002265 prevention Effects 0.000 title claims description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 67
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000009172 bursting Effects 0.000 abstract description 2
- 239000000571 coke Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 239000012528 membrane Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Float Valves (AREA)
Abstract
The utility model discloses an air injection preventing device for an overflow port of a deaerator, and belongs to the technical field of coke oven heat recovery. The device comprises a device body, wherein a cavity is formed in the device body, a floating ball is arranged in the cavity, and a floating ball lifting device is arranged on the floating ball in a penetrating mode. The device solves the problems that the U-shaped water seal of the deaerator is insufficient in water column pressure caused by insufficient space position, when the internal pressure of the deaerator fluctuates or is too high, the water seal is broken by the danger of bursting, a large amount of steam leaks to cause steam leakage, and the deaerator is increased in water outlet and dissolved oxygen and potential safety hazard in a period of time.
Description
Technical Field
The utility model belongs to the technical field of coke oven heat recovery, and relates to an air injection preventing device for an overflow port of a deaerator.
Background
The atmospheric deaerator water seal also becomes a u-shaped overflow pipe, and the water seal plays roles of a safety valve and a water level high alarm, and has the specific roles as follows: when the water level of the deaerator water tank is too high, the deaerator water tank can overflow through the water seal cylinder; when the deaerator exceeds normal working pressure, the water seal is damaged, so that the stored water pressure can be removed firstly, then steam is discharged, and the function of preventing the deaerator from being overpressurized is realized through the operation.
The water tank of the atmospheric thermal deaerator is communicated with the deaerating head, and when the deaerating head is overpressurized, the water tank still has danger because of the large volume of the deaerating water tank although the working pressure of the deaerator is very low. Further, the operation of the safety valve of the atmospheric deaerator is not reliable due to the low operating pressure. Therefore, the water seal is adopted to replace the safety valve, so that the structure is simple, the work is reliable, and the high maintenance cost is not required. The atmospheric thermal deaerator widely adopts a water seal to prevent the deaerator from being overpressurized, and some deaerators which are more advanced are simultaneously provided with a safety valve and the water seal.
The overflow port of the atmospheric deaerator in the prior art is designed by adopting a U-shaped water seal, and the U-shaped water seal can generate corresponding pressure only by depending on the height of a water column, so that certain requirements on the space and the height of an installation position are met. The U-shaped water seal (U-shaped overflow pipe) of the existing atmospheric deaerator is affected by the height of the overflow port of the deaerator device, the common height is low or the water seal section is not fully filled with water in the operation process, a water seal pipe water column with the height of 2m is usually adopted, the static pressure of the water seal pipe water column is only equal to the gauge pressure of 0.02MPa, and when the internal pressure of the deaerator fluctuates or is too high, the water seal is possibly broken, so that a large amount of steam leaks, and the problem of water and steam leakage is caused. In general, the deaerator is difficult to be arranged in a higher water column on the installation site. Improper water seal treatment is easy to break down, and steam leakage is caused, so that the normal operation of the deaerator is affected by the above conditions, the water injection process is complicated, and the problem of increase of dissolved oxygen in the water outlet of the deaerator in a period of time and potential safety hazards are often caused. The overflow port of the deaerator is selectively sealed in part of the installation site to prevent possible steam leakage, but the operation can lead to the overflow port not reaching the normal overflow and overpressure prevention functions.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the air injection preventing device for the overflow port of the deaerator, which solves the problems that the pressure of a water column is insufficient due to insufficient space position of a U-shaped water seal of the deaerator, when the internal pressure of the deaerator fluctuates or is too high, the water seal is broken, a large amount of steam leaks to cause steam leakage, the dissolved oxygen of the water outlet of the deaerator is increased within a period of time, and the potential safety hazard is caused.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides an air injection preventing device for an overflow port of a deaerator, which comprises a device body, wherein a cavity is formed in the device body, a floating ball is arranged in the cavity, and a floating ball lifting device is arranged on the floating ball in a penetrating manner.
In a specific implementation process, the device body is provided with an inlet and an outlet.
In a specific implementation process, the inlet of the device body is provided with a filter.
In a specific implementation process, the outlet is arranged at the bottom of the device body.
In the implementation process, the caliber of the outlet is smaller than the diameter of the floating ball.
In the specific implementation process, the floating ball lifting device comprises a connecting rod, a diaphragm plate and a spring;
the upper end of the connecting rod is connected with the lower surface of the diaphragm plate, and the spring is arranged in a space between the upper surface of the diaphragm plate and the top plate of the device body.
In the implementation process, a through hole is formed in the middle of the floating ball, and the connecting rod penetrates through the through hole.
In the specific implementation process, a limiting structure is arranged at the lower end of the connecting rod, and the floating ball cannot fall off due to the limiting structure.
In the specific implementation process, a first sealing gasket is arranged between the floating ball and the connecting rod.
In the specific implementation process, the outer ring of the diaphragm plate is provided with a second sealing gasket.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides an anti-jet device for an overflow port of a deaerator, which utilizes the buoyancy principle to ensure that a floating ball in the device can rise and fall along with the change of the water level according to the quantity of the condensate water and continuously discharge the condensate water; when the condensed water stops entering, the floating ball descends to the bottom, returns to the closing position, and the drainage stops. Because the water outlet of the funnel-shaped water seal is always below the condensed water level, water and gas can be naturally separated, and the aim of no steam leakage during normal operation is fulfilled. Meanwhile, when the deaerator is overpressured, the floating ball lifting device can release steam, so that the deaerator overpressure is prevented, the problem that the pressure of a water column is insufficient due to insufficient space position of the U-shaped water seal of the deaerator is solved, and when the pressure in the deaerator fluctuates or is overhigh, the risk of bursting the water seal exists.
The device is designed to overcome the defect that the deaerator u-shaped water seal needs too high water column to provide pressure, has no requirement on the installation position and height, but can achieve the aim of discharging water and not discharging steam in normal operation, and can timely discharge steam in overpressure to ensure operation safety.
Drawings
FIG. 1 is a schematic diagram of an anti-jet device for an overflow port of a deaerator of the utility model;
wherein: 1-a filter; 2-floating ball; 3-connecting rod; 4-a membrane plate; 5-a spring; 6-a device body; 7-a first gasket; 8-a second sealing gasket.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides an air injection preventing device for an overflow port of a deaerator, which comprises a filter 1, a floating ball 2, a connecting rod 3, a membrane plate 4, a spring 5, a device body 6, a first sealing gasket 7 and a second sealing gasket 8.
Wherein, the connecting rod 3, the diaphragm plate 4 and the spring 5 form a floating ball lifting device.
The device body 6 is provided with an inlet and an outlet, and a cavity is arranged in the device body; the floating ball 2 is arranged in the cavity, the filter 1 is arranged at the inlet of the device body 6, and the outlet is arranged at the bottom of the device body 6; the diameter of the floating ball 2 is larger than the caliber of the outlet; the floating ball lifting device is arranged on the floating ball 2 in a penetrating way, the upper end of a connecting rod 3 in the floating ball lifting device is connected with the lower surface of the membrane plate 4, and a spring 5 is arranged in a space between the upper surface of the membrane plate 4 and the top plate of the device body 6; further, a through hole is formed in the middle of the floating ball 2, and the connecting rod 3 penetrates through the through hole; a limiting structure is arranged at the lower end of the connecting rod 3, and the floating ball 2 cannot fall off due to the limiting structure; specifically, the limiting structure arranged on the lower end of the connecting rod 3 is a limiting block fixedly connected (welded), the bottommost part of the connecting rod 3 protrudes out to be larger than the hole diameter of the floating ball 2, the structure of the connecting rod 3 is similar to a reverse spike, and the device is similar to a valve in function.
In a specific implementation process, in order to obtain a better sealing effect, a first sealing gasket 7 is arranged between the floating ball 2 and the connecting rod 3, and a second sealing gasket 8 is arranged on the outer ring of the diaphragm plate 4.
Specifically, the first sealing gasket 7 is an annular sealing gasket with a hole in the middle and is connected with the floating ball 2.
The types of the first sealing gasket 7 and the second sealing gasket 8 are changed along with the valve size, and rubber materials are preferable.
The utility model is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, the utility model provides an air injection preventing device for an overflow port of a deaerator, which is used as follows: from the inlet of the device, the fluid passes through the filter 1, and when the entering fluid is in a liquid state (overflow water or condensed water), the floating ball 2 floats under the influence of buoyancy, and the overflow water or condensed water can leave through the bottom opening. When steam is introduced, the floating ball 2 cannot move to form a water seal, so that natural separation of water and steam is realized, and the aim of preventing air leakage is fulfilled. When the steam pressure entering the device is too high and reaches the preset jump pressure, after the diaphragm plate 4 is compressed, the spring 5 is compressed, the floating ball 2 is driven to leave by the connecting rod 3, the outlet of the device is leaked, and the steam is released, so that the problem that the steam leakage and potential safety hazard can be caused due to insufficient water column pressure caused by insufficient space position of the U-shaped water seal of the deaerator is solved.
Examples
The embodiment provides an air injection preventing device for an overflow port of a deaerator, which comprises a replaceable filter 1 arranged at an inlet of a device body 6, a floating ball 2 and a connecting rod 3 which are arranged at the center of the device body 6, and a diaphragm plate 4 and a spring 5 which are arranged at the other side of the connecting rod 3, wherein a through hole is formed in the center of the floating ball 2, the connecting rod 3 penetrates through the through hole, the bottommost part of the connecting rod 3 protrudes out of the hole diameter of the floating ball 2, and the top of the connecting rod 3 is connected with the diaphragm plate 4. The other side of the membrane plate 4 is provided with a spring 5.
The filter 1 is positioned at the position where the inlet of the device body 6 is necessary, and the external structure of the device body 6 is designed to be detachable, so that the filter 1 can be conveniently overhauled and replaced at any time; a sealing gasket is arranged between the floating ball 2 and the connecting rod 3; the lowest part of the internal cavity of the device body 6 is provided with an outlet, and the size of a pipe orifice of the outlet is smaller than that of the floating ball 2; the outer ring of the diaphragm plate 4 is provided with a second sealing gasket 8; the spring 5 is disposed between the diaphragm 4 and the inner wall of the device body 6.
The utility model provides an overflow port air injection preventing device of a deaerator, which utilizes the buoyancy principle, a floating ball 2 is lifted along with the change of water level according to the quantity of the condensate, the opening degree of a valve seat hole is automatically adjusted, the condensate is continuously discharged, when the condensate stops entering, the floating ball 2 is lowered to the bottom, the floating ball returns to a closing position, and the water discharge stops. The funnel-shaped water seal water outlet is always below the condensed water level, so that water and gas are naturally separated, the aim of no steam leakage during normal operation is fulfilled, and meanwhile, the membrane plate 4 and the spring 5 in the floating ball lifting device are utilized, so that steam can be released when the deaerator is overpressurized, and the aim of preventing the deaerator from being overpressurized is fulfilled.
The above is only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the claims of the present utility model.
Claims (9)
1. The anti-jet device for the overflow port of the deaerator is characterized by comprising a device body (6), wherein a cavity is formed in the device body (6), a floating ball (2) is arranged in the cavity, and a floating ball lifting device is arranged on the floating ball (2) in a penetrating manner;
the floating ball lifting device comprises a connecting rod (3), a diaphragm plate (4) and a spring (5);
the upper end of the connecting rod (3) is connected with the lower surface of the diaphragm plate (4), and the spring (5) is arranged in a space between the upper surface of the diaphragm plate (4) and the top plate of the device body (6).
2. The deaerator overflow port air injection preventing device according to claim 1, wherein the device body (6) is provided with an inlet and an outlet.
3. The deaerator overflow port jet protection device according to claim 2, characterized in that the inlet of the device body (6) is provided with a filter (1).
4. The deaerator overflow port jet protection device according to claim 2, characterized in that the outlet is arranged at the bottom of the device body (6).
5. The deaerator overflow port air injection preventing device according to claim 4, wherein the diameter of the outlet is smaller than the diameter of the floating ball (2).
6. The deaerator overflow port air injection preventing device according to claim 1, wherein a through hole is formed in the middle of the floating ball (2), and the connecting rod (3) penetrates through the through hole.
7. The deaerator overflow port air injection preventing device according to claim 1, wherein a limiting structure is arranged at the lower end of the connecting rod (3), and the floating ball (2) cannot fall off due to the limiting structure.
8. The deaerator overflow port air injection preventing device according to claim 1 or 6, wherein a first sealing gasket (7) is arranged between the floating ball (2) and the connecting rod (3).
9. The deaerator overflow port air injection prevention device according to claim 1, characterized in that the outer ring of the diaphragm plate (4) is provided with a second sealing gasket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322440445.9U CN220792779U (en) | 2023-09-07 | 2023-09-07 | Air injection prevention device for overflow port of deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322440445.9U CN220792779U (en) | 2023-09-07 | 2023-09-07 | Air injection prevention device for overflow port of deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220792779U true CN220792779U (en) | 2024-04-16 |
Family
ID=90656465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322440445.9U Active CN220792779U (en) | 2023-09-07 | 2023-09-07 | Air injection prevention device for overflow port of deaerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220792779U (en) |
-
2023
- 2023-09-07 CN CN202322440445.9U patent/CN220792779U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107137982A (en) | A kind of marine high-pressure compressed air is released protection device | |
| CN102563358A (en) | Self-closing type water drain apparatus for gas and service method of self-closing water drain apparatus | |
| CN104373646A (en) | Pilot-operated air pressure safety valve | |
| CN220792779U (en) | Air injection prevention device for overflow port of deaerator | |
| CN207153284U (en) | A kind of marine high-pressure compressed air is released protection device | |
| CN202065686U (en) | Drainer capable of preventing gas leakage at low altitude | |
| CN201351811Y (en) | Gas-leakage preventive device for gas conduit drainer | |
| CN201141515Y (en) | Anti-leakage drainer of gas pipeline | |
| CN209354971U (en) | A kind of novel gas condensed water drainer | |
| CN211309644U (en) | Closed discharge system of sealed white oil tank of pump | |
| CN213954976U (en) | Full-pressure gas drainer without water-feeding pipeline | |
| CN210567570U (en) | Anti-leakage device of gas drainer | |
| CN201802879U (en) | Highly-sealed cylindrical quick exhaust valve | |
| CN207906533U (en) | Double containment type emergency relief valve | |
| CN213872233U (en) | Overpressure protection breakdown-preventing device of water-sealed gas drainer | |
| CN207394045U (en) | Critical gate gurgle valve | |
| CN207893428U (en) | A kind of coal gas drainer automatic gas leakage preventing device | |
| CN218117842U (en) | Drainage device for gas extraction pipeline in goaf | |
| CN211951622U (en) | Air release valve | |
| CN201487533U (en) | Air passage drain valve | |
| CN219063071U (en) | Low-pressure wet type single-section vertical-lift gas holder roof-falling prevention device for combustible gas storage | |
| CN216383629U (en) | Double float type leakage-proof gas drainer | |
| CN2898559Y (en) | Self-shutting drainer | |
| CN218378944U (en) | Gas drainer with external anti-leakage device | |
| CN216431221U (en) | Steam trap not easy to leak steam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |