CN213555858U - Gypsum dehydration zero-position gas-liquid separation device of thermal power plant - Google Patents
Gypsum dehydration zero-position gas-liquid separation device of thermal power plant Download PDFInfo
- Publication number
- CN213555858U CN213555858U CN202022364954.4U CN202022364954U CN213555858U CN 213555858 U CN213555858 U CN 213555858U CN 202022364954 U CN202022364954 U CN 202022364954U CN 213555858 U CN213555858 U CN 213555858U
- Authority
- CN
- China
- Prior art keywords
- cabin
- valve
- liquid
- communicated
- communicating
- 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
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a gypsum dehydration zero-position gas-liquid separation device of a thermal power plant, a tank body is divided into an upper cabin and a lower cabin by a partition plate, wherein, the front end of the upper cabin is provided with a gas-liquid inlet, the top of the upper cabin is provided with a vacuum suction port, a vacuum pump is communicated with the vacuum suction port, the bottom liquid outlet of the upper cabin is communicated with the liquid inlet of the lower cabin through an upper cabin one-way valve and a sealing access door, and the liquid outlet of the lower cabin is communicated with an external filtrate water tank through a lower cabin one-way valve; an atmosphere communicating valve is arranged at the opening at the top of the lower cabin, the top of the lower cabin is communicated with the top of the upper cabin through a communicating pipe, and an upper cabin communicating valve and a lower cabin communicating valve are arranged on the communicating pipe; go up the cabin indoor and be provided with low level sensor and high level sensor, the device can the effectual action number of times that reduces the valve, improves the life-span of valve, avoids appearing the untimely risk of flowing back.
Description
Technical Field
The utility model relates to a gas-liquid separation device, concretely relates to gypsum dehydration zero-position gas-liquid separation device of thermal power factory.
Background
In order to improve the quality of atmospheric environment, national and local governments have made increasingly strict emission standards for the thermal power industry, which require atmospheric pollutants such as NOx and SO generated by combustion of coal-fired boilers2And dust and the like are treated by denitration, dust removal and desulfurization measures.
At present, limestone-gypsum wet desulphurization is dominant in desulphurization process of thermal power plants, and limestone slurry absorbs SO in flue gas through an absorption tower2Injecting oxidizing air into the slurry pond, oxidizing to produce water-containing gypsum, and pumping the gypsum slurry into a dehydrator through a gypsum discharge pump to form finished gypsum. At present, the dehydration mode is mainly vacuum dehydration, namely a vacuum pump is adopted to be connected with a gas-liquid separation device, and the gas-liquid separation device is connected with a vacuum gypsum dehydrator to dehydrate the hydrous gypsum.
Because the inside vacuum state that is close of during operation gas-liquid separation device, current gas-liquid separation device bottom fluid-discharge tube need have about 8 ~ 10 meters water seals, just can maintain jar internal vacuum degree in the flowing back, not only has the restriction to gas-liquid separation device's arrangement height, and this part water seal is in the promotion state during the working period all the time moreover, has brought extra consumption for the vacuum pump. In order to reduce the operating power consumption of the vacuum pump and the arrangement height of the dehydrator and the gas-liquid separation device, a valve is generally arranged at a liquid discharge port at the lower part of the gas-liquid separation device to replace a water seal. Traditional gas-liquid separation adopts vertical jar of body, and to large-scale thermal power factory, especially 1000MW unit, gas-liquid separation and hydroextractor interface height are more than 2 meters, and the hydroextractor needs the lifting to be from arranging more than 3 meters of floor, and the building layer height of dewatering machine room also needs corresponding lifting about 3 meters, has increased the civil engineering cost. The existing gas-liquid separation device is easy to scale after long-term operation, liquid drainage and device sealing are affected, and further the vacuum degree of a system is affected. The existing gas-liquid separation device generally adopts a time control valve to act for liquid drainage, the valve opening time is set according to the liquid drainage quantity of the unit maximum load vacuum dehydrator, and the risk of untimely liquid drainage exists when the maximum liquid drainage quantity is exceeded. And when the unit is in low load and the liquid discharge amount is reduced, the valve acts too frequently, and the service life of the valve is shortened. In addition, the traditional zero-position gas-liquid separation device also has the problem that the internal valve is inconvenient to overhaul.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a gypsum dehydration zero-bit gas-liquid separation of thermal power factory device, the device can effectual reduction valve's action number of times, improves the life-span of valve, avoids appearing the untimely risk of flowing back.
In order to achieve the purpose, the gypsum dehydration zero-position gas-liquid separation device of the thermal power plant comprises a tank body, a vacuum pump, a communicating pipe and a controller;
the tank body is divided into an upper chamber and a lower chamber by a partition plate, wherein the front end of the upper chamber is provided with a gas-liquid inlet, the top of the upper chamber is provided with a vacuum suction port, a vacuum pump is communicated with the vacuum suction port, a liquid outlet at the bottom of the upper chamber is communicated with a liquid inlet of the lower chamber through an upper chamber one-way valve and a sealing access door, and a liquid outlet of the lower chamber is communicated with an external filtrate water tank through a lower chamber one-way valve;
an atmosphere communicating valve is arranged at the opening at the top of the lower cabin, the top of the lower cabin is communicated with the top of the upper cabin through a communicating pipe, and an upper cabin communicating valve and a lower cabin communicating valve are arranged on the communicating pipe;
the upper cabin is internally provided with a low liquid level sensor and a high liquid level sensor, wherein the controller is connected with the low liquid level sensor, the high liquid level sensor, an upper cabin communicating valve, a lower cabin communicating valve and an atmosphere communicating valve.
The device also comprises a flushing water pipe, wherein the outlet of the flushing water pipe is divided into two paths, one path is communicated with the flushing water inlet on the front end surface of the upper cabin through an upper cabin flushing water valve, and the other path is communicated with the flushing water inlet on the front end surface of the lower cabin through a lower cabin flushing water valve.
The bottom of the tank body is provided with a tank body supporting leg.
The utility model discloses following beneficial effect has:
thermal power factory gypsum dehydration zero-bit gas-liquid separation equipment when concrete operation, the gas-liquid mixture gets into the upper deck, liquid gets into the bottom in upper deck under the action of gravity, gaseous discharge from the vacuum suction mouth, the liquid of upper deck bottom gets into in the lower deck through upper deck check valve and sealed access door, liquid in the lower deck is discharged from lower deck check valve, the controller measures the liquid level data who obtains according to high level sensor and low level sensor, cabin intercommunication valve and atmosphere intercommunication valve switch under the automatic control, realize going up the pressure between cabin and the lower deck and the pressure balance between cabin and the atmosphere down, realize continuous automatic gas-liquid separation, the system need not to set up the water seal, realize same floor's zero-bit flowing back, avoid the hour intercommunication valve of leakage volume to frequently move, extension intercommunication valve life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention.
Wherein, 1 is a tank body, 2 is a partition plate, 3 is an upper cabin, 4 is a lower cabin, 5a is an upper cabin one-way valve, 5b is a lower cabin one-way valve, 6 is a sealed access door, 7 is a gas-liquid inlet, 8 is a vacuum suction port, 9 is a tank body supporting leg, 10a is a high liquid level sensor, 10b is a low liquid level sensor, 11 is a communicating pipe, 12a is an upper cabin communicating valve and a lower cabin communicating valve 1, 12b is an atmosphere communicating valve, 13a is an upper cabin flushing water valve, 13b is a lower cabin flushing water valve, 14 is a flushing water pipe, and 15 is a controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1 and 2, the gypsum dehydration zero-position gas-liquid separation device of the thermal power plant of the present invention includes a tank 1, a vacuum pump, a communicating pipe 11 and a controller 15; the inside of the tank body 1 is divided into an upper chamber 3 and a lower chamber 4 by a partition plate 2, wherein the front end of the upper chamber 3 is provided with a gas-liquid inlet 7, the top of the upper chamber 3 is provided with a vacuum suction port 8, a vacuum pump is communicated with the vacuum suction port 8, a liquid outlet at the bottom of the upper chamber 3 is communicated with a liquid inlet of the lower chamber 4 through an upper chamber one-way valve 5a and a sealing access door 6, and a liquid outlet of the lower chamber 4 is communicated with an external filtrate water tank through a lower chamber one-way valve 5 b; an atmospheric communicating valve 12b is arranged at the opening of the top of the lower cabin 4, the top of the lower cabin 4 is communicated with the top of the upper cabin 3 through a communicating pipe 11, and an upper cabin communicating valve 12a and a lower cabin communicating valve 12a are arranged on the communicating pipe 11; a low level sensor 10b and a high level sensor 10a are provided in the upper chamber 3, and the controller 15 is connected to the low level sensor 10b, the high level sensor 10a, the upper and lower chamber communication valves 12a, and the atmosphere communication valve 12 b.
The utility model discloses still include wash pipe 14, wash pipe 14's export is divided into two the tunnel, wherein is linked together through the sparge water entry of last cabin washing water valve 13a and last cabin 3 preceding terminal surface all the way, and another way is linked together through the sparge water entry of cabin washing water valve 13b and cabin 4 preceding terminal surface down, and the bottom of jar body 1 is provided with jar body landing leg 9.
The gas-liquid mixture extracted by the dehydrator enters the upper chamber 3, the mixture enters the lower part of the upper chamber 3 under the action of gravity, the gas is discharged from the vacuum suction port 8 and enters the vacuum pump, the liquid at the bottom of the upper chamber 3 enters the lower chamber 4 through the upper chamber one-way valve 5a and the sealed access door 6, the liquid in the lower chamber 4 is discharged into the filtrate water tank from the lower chamber one-way valve 5b, the controller 15 controls the opening and closing of the upper chamber communication valve 12a and the lower chamber communication valve 12b according to the amount detected by the high liquid level sensor 10a and the low liquid level sensor 10b in the lower chamber 4, the pressure balance between the upper chamber 3 and the lower chamber 4 and the pressure balance between the lower chamber 4 and the atmosphere are realized, the continuous automatic gas-liquid separation is realized, the system does not need to be provided with a water seal, and the zero. And an upper cabin flushing water valve 13a and a lower cabin flushing water valve 13b are arranged at the same time, so that the interiors of the upper cabin 3 and the lower cabin 4 are flushed, and the device is prevented from scaling.
The top of the upper chamber 3 is communicated with the top of the lower chamber 4 through a communication pipe 11, and the communication pipe 11 is provided with an upper chamber communication valve 12a and a lower chamber communication valve 12b, wherein the upper chamber communication valve 12a is used for pressure balance, and the atmosphere communication valve 12b is used for communicating the lower chamber 4 with outdoor atmosphere for pressure balance.
The utility model discloses a working process does:
the gas-liquid inlet 7 is connected with a vacuum suction pipe of the dehydrator, the vacuum suction port 8 is connected with the vacuum pump, a gas-liquid mixture from the dehydrator enters the upper cabin 3 from the gas-liquid inlet 7, gas enters the vacuum pump from the vacuum suction port 8 on the upper part of the upper cabin 3, and liquid enters the lower part of the upper cabin 3 under the action of gravity, so that the gas-liquid separation function is realized.
The upper and lower cabin communication valve 12a is in an open state, the atmosphere communication valve 12b is in a closed state, at the moment, the pressure between the upper cabin 3 and the lower cabin 4 is in a balanced state, the upper cabin one-way valve 5a is in a one-way openable state, the pressure in the lower cabin 4 is smaller than the outdoor atmospheric pressure, and the lower cabin one-way valve 5b is in a tight-suction and unopened-resistant state. At this time, the whole device except the gas-liquid inlet 7 and the vacuum suction port 8 is in a sealed and isolated state with the outside. The liquid in the upper chamber 3 flows into the lower chamber 4 through the upper chamber check valve 5a and the seal access door 6, and the liquid in the upper chamber 3 continuously flows into the lower chamber 4 at this time because the lower chamber check valve 5b is in the tight-suction sealed state, and the liquid in the lower chamber 4 is not discharged and is always accumulated in the lower chamber 4.
When the liquid in the lower chamber 4 reaches the maximum level, the controller 15 controls the upper and lower chamber communication valves 12a to close and the atmosphere communication valve 12b to open. At this time, the pressure inside the upper chamber 3 is lower than the pressure in the lower chamber 4, and the upper chamber check valve 5a is in a tight suction state. The pressure in the lower chamber 4 is balanced with the outdoor atmospheric pressure, and the lower chamber check valve 5b is in a one-way openable state. The upper chamber 3 is in a sealed and isolated state except the gas-liquid inlet 7 and the vacuum suction port 8, the vacuum state is continuously maintained in the upper chamber 3, the gas-liquid separation process is continuously carried out, the liquid is temporarily reserved at the lower part of the upper chamber 3, and at the moment, the lower chamber check valve 5b is opened to discharge liquid outwards due to the liquid pressure in the lower chamber 4.
When the liquid drainage of the lower chamber 4 is finished, namely the liquid level in the lower chamber 4 reaches the lowest liquid level height, the controller 15 controls the upper and lower chamber communicating valves 12a to be opened and the atmosphere communicating valve 12b to be closed, and at the moment, one liquid drainage process is finished and the next liquid drainage process is started.
The utility model discloses guarantee that vacuum is not destroyed in flowing back in-process device, do not influence the dewatering ability of hydroextractor when guaranteeing the flowing back.
The utility model discloses well sealed access door 6 is in encapsulated situation at ordinary times, has sealed, overhauls, liquid channel's function. During the during operation, go up cabin 3 and get into sealed access door 6 through last cabin check valve 5a, during liquid got into cabin 4 down from sealed access door 6, under the unit maintenance state, can open sealed access door 6, overhauls last cabin check valve 5a, need not additionally occupy the device inner space, solves the inconvenient problem of device inner valve maintenance.
The utility model discloses be equipped with jar body landing leg 9, make jar body 1 rear end be a little higher than the front end, guaranteed that last cabin 3 and lower cabin 4 all have by the device rear end to the drainage slope of device front end, effectively prevent under the operating condition and shut down the thick liquid deposit problem when overhauing.
The rear ends of the upper cabin 3 and the lower cabin 4 are respectively provided with flushing water, and the upper cabin flushing water valve 13a and the lower cabin flushing water valve 13b can be respectively opened in a working state and a shutdown maintenance state to respectively flush the upper cabin 3 and the lower cabin 4, so that the deposition of slurry in the device is further prevented.
Finally, need explain, the utility model discloses gas-liquid separation device lower part water seal has been saved for gypsum vacuum dehydration machine and gas-liquid separation device's arrangement is more nimble, can be realizing gypsum dehydration machine zero-bit flowing back. In addition, the upper cabin and the lower cabin are adopted to respectively and alternately store liquid, so that the vacuum gypsum dehydrator at the front end of the device can continuously discharge liquid, and the vacuum degree is not influenced by the opening and closing of the valve of the gas-liquid separation device in the continuous liquid discharge process.
Claims (3)
1. A gypsum dehydration zero-position gas-liquid separation device for a thermal power plant is characterized by comprising a tank body (1), a vacuum pump, a communicating pipe (11) and a controller (15);
the tank body (1) is internally divided into an upper cabin (3) and a lower cabin (4) by a partition plate (2), wherein the front end of the upper cabin (3) is provided with a gas-liquid inlet (7), the top of the upper cabin (3) is provided with a vacuum suction port (8), a vacuum pump is communicated with the vacuum suction port (8), a liquid outlet at the bottom of the upper cabin (3) is communicated with a liquid inlet of the lower cabin (4) through an upper cabin one-way valve (5a) and a sealed access door (6), and a liquid outlet of the lower cabin (4) is communicated with an external filtrate water tank through a lower cabin one-way valve (5 b);
an atmosphere communicating valve (12b) is arranged at the opening of the top of the lower cabin (4), the top of the lower cabin (4) is communicated with the top of the upper cabin (3) through a communicating pipe (11), and an upper cabin communicating valve and a lower cabin communicating valve (12a) are arranged on the communicating pipe (11);
a low liquid level sensor (10b) and a high liquid level sensor (10a) are arranged in the upper cabin (3), wherein the controller (15) is connected with the low liquid level sensor (10b), the high liquid level sensor (10a), an upper cabin communicating valve (12a) and a lower cabin communicating valve (12b) and an atmosphere communicating valve (12 b).
2. The gypsum dehydration zero-position gas-liquid separation device of the thermal power plant as claimed in claim 1, further comprising a flushing water pipe (14), wherein the outlet of the flushing water pipe (14) is divided into two paths, one path is communicated with the flushing water inlet on the front end face of the upper chamber (3) through an upper chamber flushing water valve (13a), and the other path is communicated with the flushing water inlet on the front end face of the lower chamber (4) through a lower chamber flushing water valve (13 b).
3. The gypsum dehydration zero-position gas-liquid separation device of the thermal power plant as claimed in claim 1, characterized in that the bottom of the tank (1) is provided with tank legs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022364954.4U CN213555858U (en) | 2020-10-21 | 2020-10-21 | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022364954.4U CN213555858U (en) | 2020-10-21 | 2020-10-21 | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213555858U true CN213555858U (en) | 2021-06-29 |
Family
ID=76527280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022364954.4U Active CN213555858U (en) | 2020-10-21 | 2020-10-21 | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213555858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206587A (en) * | 2020-10-21 | 2021-01-12 | 西安西热锅炉环保工程有限公司 | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant |
-
2020
- 2020-10-21 CN CN202022364954.4U patent/CN213555858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206587A (en) * | 2020-10-21 | 2021-01-12 | 西安西热锅炉环保工程有限公司 | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202595088U (en) | Desulfurization and dehydration tank | |
| CN103047101B (en) | Slurry pump exclusively for bauxite ore washing tailing slurry dry method processing and processing system and method thereof | |
| CN213555858U (en) | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant | |
| CN206290281U (en) | A kind of mine gas extraction pipe negative pressure automatic drainage device | |
| CN102506028B (en) | Water filling device of pump station floating ball valve type automatic sealing water tank | |
| CN106422734A (en) | Bubbling flue gas desulfurizing device | |
| CN112206587A (en) | Gypsum dehydration zero-position gas-liquid separation device of thermal power plant | |
| CN116554938A (en) | Mixed transportation strong exhaust gas liquid treatment system and operation method thereof | |
| CN217103231U (en) | Sewage treatment equipment using pipeline to replace impeller and not generating excessive sludge | |
| CN206722059U (en) | A kind of monoblock type sewage lifter of anti-return | |
| CN212656246U (en) | Automatic drainage box | |
| CN202010458U (en) | Fiber ball filtering tank | |
| CN211816642U (en) | Energy-conserving effectual no negative pressure water supply equipment | |
| CN209654078U (en) | A kind of continuous negative pressure automatic water drainage device | |
| CN2507912Y (en) | Float box type automatic gate for overfall dam | |
| CN207376762U (en) | A kind of flood control electricity row station | |
| CN111962540A (en) | Automatic drainage box | |
| CN206924617U (en) | A kind of double slurry pool circulating desulfurization devices | |
| CN206934846U (en) | Lower resistance water filtering device | |
| CN220003535U (en) | Slurry circulation back flushing system of siphon desulfurization absorption tower | |
| CN204298946U (en) | Sewage lifter | |
| CN209701866U (en) | A kind of blanc fixe production environment-friendly type dust suppression conveying device | |
| CN207288270U (en) | A kind of vacuum pump flusher and sealing vacuum box device | |
| CN212454786U (en) | High-efficient gas accuse pump | |
| CN205101848U (en) | Natural gas trap of continuous drainage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |