CN219546822U - Oxygenation steady voltage cabinet and oxygenation equipment - Google Patents
Oxygenation steady voltage cabinet and oxygenation equipment Download PDFInfo
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- CN219546822U CN219546822U CN202320224846.8U CN202320224846U CN219546822U CN 219546822 U CN219546822 U CN 219546822U CN 202320224846 U CN202320224846 U CN 202320224846U CN 219546822 U CN219546822 U CN 219546822U
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Abstract
The utility model provides an oxygenation voltage stabilizing cabinet and oxygenation equipment, and relates to the field of boiler oxygenation. The oxygenation voltage-stabilizing cabinet comprises a cabinet body and a voltage-stabilizing main path arranged on the cabinet body, wherein an air inlet end of the voltage-stabilizing main path is communicated with an oxygenation control device, and an air outlet end of the voltage-stabilizing main path is communicated with an oxygenation point; along the direction of oxygen's delivery, set gradually entry stop valve, steady voltage manometer, main way steady voltage valve, oxygenation point manometer and export stop valve on the steady voltage main way, entry stop valve and export stop valve all are used for controlling the break-make of steady voltage main way, and main way steady voltage valve is used for stabilizing the gas pressure in the steady voltage main way, and steady voltage manometer is used for measuring the gas pressure in the steady voltage main way, and oxygenation point manometer is used for measuring the pressure of oxygenation point. The main way pressure stabilizing valve can stabilize the gas pressure between the main way pressure stabilizing valve and the oxygenation device, adjust the pressure stabilizing pressure and enable the pressure stabilizing pressure to be higher than the pressure near the oxygenation point, namely the gas with the pressure stabilizing pressure can be added into the boiler water system at the oxygenation point, and finally the oxygenation accuracy is improved.
Description
Technical Field
The utility model relates to the technical field of boiler oxygenation, in particular to an oxygenation pressure stabilizing cabinet and oxygenation equipment.
Background
The boiler feed water oxygenation treatment is the optimal feed water treatment working condition of the once-through boiler, and can solve a series of problems caused by flow acceleration corrosion of a feed water and high-addition and drainage system. The main current water supply oxygenation mode is a full protection oxygenation technology, and oxygenation points are respectively arranged on a main pipe of a refined treatment outlet, a downpipe of a deaerator and a first high-pressure steam extraction pipeline. The main pipe oxygenation pressure of the condensate outlet of the supercritical (super) once-through boiler is basically set at about 4MPa, the water supply oxygenation pressure of the downpipe of the deaerator is basically set at about 2MPa, and the high water-adding drainage oxygenation pressure is set at 8-12 MPa according to the load condition of the unit. The three oxygenation points are different in pressure and larger in difference, the change amplitude of the high-oxygenation hydrophobic oxygenation pressure is larger, in a word, the oxygenation precision is greatly influenced by the load change of the unit, and the oxygenation precision is lower.
Besides adverse effects of unit load fluctuation on oxygenation precision, when air or oxygen is used as an oxygenation medium, because the air has compressibility, the oxygenation amount is easier to be greatly fluctuated along with the change of the unit load, the accurate oxygenation of a boiler is more difficult to realize, and the problems that the protection effect is reduced due to insufficient oxygenation amount, the steam system is aerobic due to overlarge oxygenation amount, the scale peeling risk is increased and the like are more likely to occur. In addition, the current thermal power generating unit faces the current situation that the annual utilization hours are reduced, so peak regulation and start-up are more frequent, and the like. Therefore, a solution capable of precisely controlling the amount of oxygen addition when the unit load fluctuates greatly in the case of using air or oxygen as an oxygen adding medium is demanded.
Disclosure of Invention
The utility model aims to provide an oxygenation voltage-stabilizing cabinet, which aims to solve the technical problem of low oxygenation accuracy of a boiler in the prior art.
The utility model provides an oxygenation voltage-stabilizing cabinet, which comprises a cabinet body and a voltage-stabilizing main path arranged on the cabinet body, wherein an air inlet end of the voltage-stabilizing main path is communicated with an oxygenation control device, and an air outlet end of the voltage-stabilizing main path is communicated with an oxygenation point; along the direction of oxygen's delivery, set gradually entry stop valve, steady voltage manometer, main way steady voltage valve, oxygenation point manometer and export stop valve on the steady voltage main way, entry stop valve with export stop valve all is used for control the break-make of steady voltage main way, the main way steady voltage valve is used for stabilizing gas pressure in the steady voltage main way, steady voltage manometer is used for measuring gas pressure in the steady voltage main way, oxygenation point manometer is used for measuring the pressure of oxygenation point.
Further, the cabinet body is further provided with a pressure stabilizing bypass, a bypass stop valve is arranged on the pressure stabilizing bypass, a main path stop valve is further arranged between the main path pressure stabilizing valve and the oxygenation point pressure gauge, and the bypass stop valve is connected with the main path pressure stabilizing valve and the main path stop valve in parallel.
Further, along the oxygen conveying direction, a metering valve or a bypass pressure stabilizing valve is arranged at the upstream of the bypass stop valve of the pressure stabilizing bypass.
Further, the cabinet body is also provided with an overhaul pipeline, an overhaul valve is arranged on the overhaul pipeline, and the air inlet end of the overhaul pipeline is communicated with the pressure stabilizing main pipeline or the pressure stabilizing bypass.
Optionally, the cabinet body is further provided with a voltage stabilizing bypass, the voltage stabilizing bypass is provided with a bypass stop valve, and the voltage stabilizing bypass is connected with the voltage stabilizing main path in parallel.
Further, a filter is further arranged between the main path pressure stabilizing valve and the pressure stabilizing pressure gauge, and/or a check valve is further arranged between the main path pressure stabilizing valve and the oxygen adding point pressure gauge.
Further, the pressure stabilizing main circuit is also provided with a regulating valve and a flowmeter, and the filter, the regulating valve, the flowmeter and the main circuit pressure stabilizing valve are sequentially arranged along the conveying direction of oxygen.
Further, a base is arranged in the cabinet body, and the inlet stop valve, the pressure stabilizing pressure gauge, the main path pressure stabilizing valve, the oxygenation point pressure gauge and the outlet stop valve are all arranged on the base.
Further, the oxygenation voltage-stabilizing cabinet further comprises a cabinet door, and the cabinet door can open or close the opening of the cabinet body.
The oxygenation voltage-stabilizing cabinet provided by the utility model has the following beneficial effects:
the main path pressure stabilizing valve can stabilize the gas pressure between the main path pressure stabilizing valve and the oxygenation device, and the pressure stabilizing pressure gauge and the oxygenation point pressure gauge respectively detect the stable pressure in front of the main path pressure stabilizing valve and the pressure near the oxygenation point, so that even if the load of a unit fluctuates greatly, the pressure stabilizing pressure is regulated and is higher than the pressure near the oxygenation point, the gas with the stable pressure can still be added into a boiler water system at the oxygenation point, and finally the oxygenation accuracy of a boiler can be improved. Under the normal working condition, the inlet stop valve and the outlet stop valve are in a normally open state so as to ensure that oxygen can be continuously and stably added into the water system; when the oxygenation voltage stabilizing cabinet needs to be overhauled, the inlet stop valve and the outlet stop valve are closed.
The second object of the present utility model is to provide an oxygenation device, which solves the technical problem of low accuracy of boiler oxygenation in the prior art.
The utility model provides an oxygenation device, which comprises an oxygenation device and the oxygenation voltage-stabilizing cabinets, wherein the number of the oxygenation voltage-stabilizing cabinets is consistent with that of oxygenation points, and the voltage-stabilizing main paths of the oxygenation voltage-stabilizing cabinets are communicated with the oxygenation pipelines of the oxygenation device.
The oxygenation equipment provided by the utility model has all the advantages of the oxygenation voltage-stabilizing cabinet, and each oxygenation point is provided with one oxygenation voltage-stabilizing cabinet, so that the oxygenation accuracy of each oxygenation point can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of one of the oxygenation and voltage regulation cabinets provided by the utility model;
FIG. 2 is a block diagram of a second embodiment of the oxygenation and voltage regulation cabinet provided by the utility model;
FIG. 3 is a block diagram of a third embodiment of the oxygenation and voltage regulator cabinet provided by the utility model;
FIG. 4 is a schematic diagram of an oxygenation voltage regulator cabinet provided by the utility model;
fig. 5 is a block diagram of the structure of the oxygenation device according to the utility model.
Reference numerals illustrate:
110-inlet shutoff valve; 120-a pressure stabilizing gauge; 130-a filter; 140-regulating valve; 150-a flow meter; 160-a main way pressure stabilizing valve; 170-check valve; 180-main shut-off valve; 190-an oxygenation point pressure gauge; 200-outlet shutoff valve;
220-metering valve; 230-a bypass shutoff valve;
310-maintenance valve;
400-oxygenation device;
500-oxygenation point.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The embodiment provides an oxygenation voltage stabilizing cabinet, which comprises a cabinet body and a voltage stabilizing main path arranged on the cabinet body, wherein an air inlet end of the voltage stabilizing main path is communicated with an oxygenation control device, and an air outlet end of the voltage stabilizing main path is communicated with an oxygenation point; along the direction of oxygen delivery, set gradually entry stop valve 110, steady voltage manometer 120, main way steady voltage valve 160, oxygenation point pressure gauge 190 and export stop valve 200 on the steady voltage main way, entry stop valve 110 and export stop valve 200 all are used for controlling the break-make of steady voltage main way, and main way steady voltage valve 160 is used for stabilizing the gas pressure in the steady voltage main way, and steady voltage manometer 120 is used for measuring the gas pressure in the steady voltage main way, and oxygenation point pressure gauge 190 is used for measuring the pressure of oxygenation point.
The main-path pressure stabilizing valve 160 can stabilize the gas pressure between the main-path pressure stabilizing valve 160 and the oxygenation device, and the pressure stabilizing pressure gauge 120 and the oxygenation point pressure gauge 190 respectively detect the stable pressure before the main-path pressure stabilizing valve 160 and the pressure near the oxygenation point, so that even if the unit load fluctuates greatly, the pressure stabilizing pressure is regulated and is higher than the pressure near the oxygenation point, the gas with the stable pressure can still be added into the boiler water system at the oxygenation point, and finally the oxygenation accuracy of the boiler can be improved. Under normal working conditions, the inlet stop valve 110 and the outlet stop valve 200 are in a normally open state so as to ensure that oxygen can be continuously and stably added into the water system; when the oxygenation regulator is required to be overhauled, the inlet stop valve 110 and the outlet stop valve 200 are closed.
Specifically, in one embodiment of the present utility model, as shown in fig. 1, the cabinet body is further provided with a pressure stabilizing bypass, a bypass stop valve 230 is provided on the pressure stabilizing bypass, a main stop valve 180 is further provided between the main pressure stabilizing valve 160 and the oxygenation point pressure gauge 190, and the bypass stop valve 230 is connected in parallel with the main pressure stabilizing valve 160 and the main stop valve 180. In this arrangement, when the pressure stabilizing main passage fails, the main passage stop valve 180 is closed, and the bypass stop valve 230 on the pressure stabilizing bypass passage is opened, so that oxygen can be smoothly supplied to the water system.
Specifically, in the present embodiment, a metering valve 220 is further provided upstream of the bypass shutoff valve 230 of the pressure stabilizing bypass in the oxygen transport direction. The metering valve 220 has a certain pressure stabilizing effect in addition to metering the oxygen adding amount, and has low cost, and the bypass oxygen adding condition is less, so that the metering valve can not only cope with emergency, but also greatly reduce the cost. Of course, in other embodiments of the present utility model, the bypass cut-off valve 230 of the pressure stabilizing bypass may be provided upstream of the bypass pressure stabilizing valve without providing the metering valve 220, so that a sufficiently high accuracy of oxygenation can be ensured even by bypass oxygenation.
Furthermore, in other embodiments of the utility model, a bypass trim pressure gauge may be provided upstream of the trim bypass metering valve 220 to detect bypass trim pressure.
Specifically, in this embodiment, the cabinet body is further provided with an overhaul pipeline, an overhaul valve 310 is arranged on the overhaul pipeline, and an air inlet end of the overhaul pipeline is communicated with the pressure stabilizing bypass. It should be noted that, in other embodiments of the present utility model, the air inlet end of the service pipeline may also be communicated with the pressure stabilizing main pipeline.
As shown in fig. 1, when the oxygenation and voltage stabilizing cabinet provided in this embodiment starts to perform oxygenation, firstly, the inlet stop valve 110 and the main path stop valve 180 are opened, the bypass stop valve 230 is closed, the main path voltage stabilizing valve 160 is adjusted, the pressure of the voltage stabilizing pressure gauge 120 is stabilized at a proper pressure, and then the outlet stop valve 200 is opened, so that oxygenation of the oxygenation medium from the oxygenation device 400 to the oxygenation point 500 can be achieved.
Specifically, in another embodiment of the present utility model, as shown in fig. 2, the cabinet is further provided with a voltage stabilizing bypass, and the voltage stabilizing bypass is provided with a bypass stop valve 230, and the voltage stabilizing bypass is connected in parallel with the voltage stabilizing main circuit. So set up, when the steady voltage main road breaks down, close entry stop valve 110 and export stop valve 200, open the bypass stop valve 230 on steady voltage bypass way, still can add oxygen to the water system smoothly, and can overhaul the steady voltage main road.
Specifically, in this embodiment, as further shown in fig. 2, a filter 130 is further disposed between the main pressure regulator 160 and the pressure regulator 120, and a check valve 170 is further disposed between the main pressure regulator 160 and the oxygen-adding point pressure 190. In this arrangement, the filter 130 can filter the gas, so that the main-way regulator valve 160 can be protected from the upstream of the main-way regulator valve 160, and the failure rate of the main-way regulator valve 160 can be reduced; the check valve 170 can prevent water or gas from flowing backward into the main-path regulator valve 160, and therefore can protect the main-path regulator valve 160 from the downstream of the main-path regulator valve 160. Of course, in other embodiments of the present utility model, the filter 130 and the check valve 170 are not limited to being provided at the same time, i.e., only the filter 130 or the check valve 170 may be provided.
Specifically, in this embodiment, as shown in fig. 3, the pressure stabilizing main path may be further provided with a regulating valve 140 and a flow meter 150, and the filter 130, the regulating valve 140, the flow meter 150 and the main path pressure stabilizing valve 160 are sequentially disposed along the conveying direction of the oxygen. The filter 130 protects the downstream regulating valve 140, the flowmeter 150 and the main pressure stabilizing valve 160, the regulating valve 140 is used for regulating the medium flow, and the flowmeter 150 is used for measuring the medium flow so as to ensure that the medium flow meets the requirement.
Specifically, as shown in fig. 4, a base is disposed in the cabinet, and the inlet stop valve 110, the pressure stabilizing gauge 120, the main path pressure stabilizing valve 160, the oxygenation point pressure gauge 190 and the outlet stop valve 200 are all disposed on the base, wherein the inlet stop valve 110, the pressure stabilizing gauge 120, the main path pressure stabilizing valve 160 and the outlet stop valve 200 are all oriented towards the opening of the cabinet; the oxygen point pressure gauge 190 is disposed on the back of the base and is not shown in fig. 4.
Specifically, the oxygenation voltage-stabilizing cabinet further comprises a cabinet door, and the cabinet door can open or close the opening of the cabinet body.
Specifically, the oxygen-adding voltage-stabilizing cabinet provided by the utility model is required to be arranged nearby relative to an oxygen-adding point in the use process, for example, the distance between the oxygen-adding point and the oxygen-adding point can be 1-3 m, so that the pressure stability of an oxygen-adding medium is ensured.
The embodiment also provides an oxygenation device, as shown in fig. 5, including an oxygenation device and the oxygenation voltage stabilizing cabinets described above, the number of the oxygenation voltage stabilizing cabinets is consistent with the number of oxygenation points, and the voltage stabilizing main paths of the oxygenation voltage stabilizing cabinets are all communicated with the oxygenation pipelines of the oxygenation device.
The oxygenation equipment provided by the embodiment has all the advantages of the oxygenation voltage-stabilizing cabinet, and each oxygenation point is provided with one oxygenation voltage-stabilizing cabinet, so that the oxygenation accuracy of each oxygenation point can be ensured.
Finally, it is further noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The oxygen adding and voltage stabilizing cabinet is characterized by comprising a cabinet body and a voltage stabilizing main path arranged on the cabinet body, wherein an air inlet end of the voltage stabilizing main path is communicated with an oxygen adding control device, and an air outlet end of the voltage stabilizing main path is communicated with an oxygen adding point; along the direction of delivery of oxygen, inlet stop valve (110), steady voltage manometer (120), main way steady voltage valve (160), oxygenation point manometer (190) and export stop valve (200) have set gradually on the steady voltage main way, inlet stop valve (110) with export stop valve (200) all are used for control the break-make in steady voltage main way, main way steady voltage valve (160) are used for stabilizing gas pressure in the steady voltage main way, steady voltage manometer (120) are used for measuring gas pressure in the steady voltage main way, oxygenation point manometer (190) are used for measuring the pressure that adds the oxygenation point.
2. The oxygenation voltage regulator cabinet according to claim 1, wherein the cabinet body is further provided with a voltage regulation bypass, a bypass stop valve (230) is arranged on the voltage regulation bypass, a main path stop valve (180) is further arranged between the main path voltage regulator valve (160) and the oxygenation point pressure gauge (190), and the bypass stop valve (230) is connected in parallel with the main path voltage regulator valve (160) and the main path stop valve (180).
3. The oxygenation surge tank according to claim 2, characterized in that a metering valve (220) or a bypass surge valve is further provided upstream of the bypass shutoff valve (230) of the surge bypass in the conveying direction of oxygen.
4. An oxygenation voltage regulator cabinet according to claim 3, wherein the cabinet body is further provided with an overhaul pipe, an overhaul valve (310) is provided on the overhaul pipe, and an air inlet end of the overhaul pipe is communicated with the voltage regulation main path or the voltage regulation bypass path.
5. The oxygenation voltage regulator cabinet of claim 1, wherein the cabinet body is further provided with a voltage regulation bypass provided with a bypass shut-off valve (230), the voltage regulation bypass being connected in parallel with the voltage regulation main path.
6. The oxygenation surge tank of claim 5, wherein a filter (130) is further provided between the main line surge valve (160) and the surge pressure gauge (120), and/or a check valve (170) is further provided between the main line surge valve (160) and the oxygenation point pressure gauge (190).
7. The oxygenation regulator cabinet according to claim 6, wherein a regulating valve (140) and a flowmeter (150) are further provided on the regulator main path, and the filter (130), the regulating valve (140), the flowmeter (150) and the main path regulator valve (160) are sequentially provided along the conveying direction of oxygen.
8. The oxygenation surge tank of any of claims 1-7, wherein a base is provided within the tank body, and the inlet shutoff valve (110), the surge pressure gauge (120), the main circuit surge valve (160), the oxygenation point gauge (190), and the outlet shutoff valve (200) are all provided to the base.
9. The oxygenation regulator cabinet of claim 8, further comprising a cabinet door capable of opening or closing the opening of the cabinet body.
10. An oxygenation device, characterized by comprising an oxygenation device and the oxygenation voltage-stabilizing cabinets according to any one of claims 1-9, wherein the number of the oxygenation voltage-stabilizing cabinets is consistent with that of oxygenation points, and the voltage-stabilizing main circuits of the oxygenation voltage-stabilizing cabinets are communicated with the oxygenation pipelines of the oxygenation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224846.8U CN219546822U (en) | 2023-02-15 | 2023-02-15 | Oxygenation steady voltage cabinet and oxygenation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224846.8U CN219546822U (en) | 2023-02-15 | 2023-02-15 | Oxygenation steady voltage cabinet and oxygenation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219546822U true CN219546822U (en) | 2023-08-18 |
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ID=87700515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320224846.8U Active CN219546822U (en) | 2023-02-15 | 2023-02-15 | Oxygenation steady voltage cabinet and oxygenation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219546822U (en) |
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- 2023-02-15 CN CN202320224846.8U patent/CN219546822U/en active Active
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