CN210119131U - Steam jet vacuumizing device for pressure swing adsorption process - Google Patents
Steam jet vacuumizing device for pressure swing adsorption process Download PDFInfo
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- CN210119131U CN210119131U CN201920299538.5U CN201920299538U CN210119131U CN 210119131 U CN210119131 U CN 210119131U CN 201920299538 U CN201920299538 U CN 201920299538U CN 210119131 U CN210119131 U CN 210119131U
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- swing adsorption
- pressure swing
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a steam jet evacuating device for pressure swing adsorption technology, it includes the steam jet ware, its characteristics are: the device is characterized by further comprising a liquid separation tank, a gas buffer tank and an emptying cylinder, wherein a steam inlet of the liquid separation tank is connected with a steam pipe network, a steam outlet of the liquid separation tank is connected with a steam inlet of a steam ejector, a desorption gas inlet of the steam ejector is connected with a vacuumizing port of a pressure swing adsorption tower, a discharge port of the steam ejector is connected with a first mixed gas inlet of the gas buffer tank, and a mixed gas outlet of the gas buffer tank is connected with a second mixed gas inlet of the emptying cylinder. When the pressure swing adsorption tower is used, the stop valve is opened, low-pressure steam of the steam pipe network is led to the liquid separation tank, the steam ejector and the gas buffer tank, the butterfly valve is opened when the emptying cylinder is emptied and the desorption gas inlet of the steam ejector forms negative pressure, and the pressure swing adsorption tower starts to be vacuumized, so that the vacuum degree in the pressure swing adsorption tower reaches a set value.
Description
Technical Field
The utility model relates to a pressure swing adsorption technology evacuation field is a steam jet evacuating device for pressure swing adsorption technology.
Background
The steam jet pump is a jet vacuum pump which takes steam as a working medium and can directly exhaust air to the atmosphere. The pump has the advantages of quick start, small occupied area, wide working pressure range and large air suction amount, and can pump out dust, corrosive, combustible and explosive gases. It would be economical to be able to utilize the remaining or waste steam.
Industrial injection pumps, also known as jet pumps and injectors, are pumps that deliver a fluid by the injection action of a high-pressure working fluid. The structure is as follows: the device comprises a pump body, wherein the pump body is provided with a vacuum chamber, a mixing chamber, a throat and a diffusion chamber which are communicated from front to back respectively, the front end of the vacuum chamber is provided with a nozzle which is used as a working fluid inlet, the side surface of the vacuum chamber is provided with a conveyed medium inlet, and the rear end of the diffusion chamber is provided with a discharge port. When the device is operated, the working fluid is sprayed out from the nozzle at a high speed, low pressure is formed in the vacuum chamber, the conveyed medium is sucked into the vacuum chamber and then enters the mixing chamber, the high-energy working fluid and the low-energy conveyed medium are fully mixed in the mixing chamber, the energy is mutually exchanged, the speed is gradually consistent, the working fluid enters the diffusion chamber from the throat pipe, the speed is slowed down, and the static pressure is raised, so that the purpose of conveying the medium is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the steam jet vacuum extractor overcomes the defects of the prior art, and provides a steam jet vacuum extractor for a pressure swing adsorption process, so that energy waste caused by direct discharge of surplus steam is prevented.
The utility model provides a technical problem's scheme is: a steam jet vacuum extractor for pressure swing adsorption process, which comprises a steam jet ejector, is characterized in that: also comprises a liquid separating tank, a gas buffer tank and an emptying cylinder, wherein the top of the liquid separating tank is provided with a steam outlet, the bottom of the liquid separating tank is provided with a hydrophobic outlet, the side surface of the liquid separating tank is provided with a steam inlet, the top of the gas buffer tank is provided with a mixed gas outlet, the bottom of the gas buffer tank is provided with a first condensate outlet, the side surface of the gas buffer tank is provided with a first mixed gas inlet, the top of the emptying cylinder is provided with an emptying port, the lower part of the emptying cylinder is provided with a second condensate outlet, a second mixed gas inlet is arranged on the side surface of the emptying cylinder and above the second condensate outlet, a steam inlet of the liquid separating tank is connected with a steam pipe network, a steam outlet of the liquid separating tank is connected with a steam inlet of the steam ejector, a desorption gas inlet of the steam ejector is connected with a vacuumizing port of the pressure swing adsorption tower, a discharge port of the steam ejector is connected with a first mixed gas inlet of a gas buffer tank, and a mixed gas outlet of the gas buffer tank is connected with a second mixed gas inlet of the emptying cylinder.
And a steam drain valve bank is arranged at a drain outlet at the bottom of the liquid separation tank.
A stop valve is arranged at the steam inlet of the liquid separation tank.
A condensate draining and guiding valve is arranged in front of the stop valve at the steam inlet of the liquid separating tank.
And a gate valve is arranged at the steam outlet of the liquid separation tank.
And a first condensate outlet at the bottom of the gas buffer tank and a second condensate outlet at the lower part of the emptying cylinder are respectively provided with a condensate discharging and guiding valve group.
A check valve, a butterfly valve and a replacement discharge valve are sequentially arranged between a desorption gas inlet of the steam ejector and a vacuumizing port of the pressure swing adsorption tower.
A vacuum gauge is provided at the stripping gas inlet of the steam injector.
The utility model discloses during the use, open the stop valve, cause the branch fluid reservoir with the low pressure steam of steam pipe network, open the gate valve after temperature and pressure in the branch fluid reservoir are the same with the anterior temperature of stop valve and pressure, introduce steam ejector and gas buffer tank with steam, at the blowdown section of thick bamboo evacuation, when steam ejector desorption gas entry forms the negative pressure, open the butterfly valve, begin to the vary voltage adsorption tower evacuation, increase the steam introduction volume simultaneously, make the interior vacuum of vary voltage adsorption tower reach the setting value gradually. In the operation process, the condensate at the bottoms of the liquid separating tank, the gas buffer tank and the emptying cylinder needs to be discharged completely.
The utility model discloses a steam jet evacuating device, its steam ejector uses surplus low-pressure steam as the power supply, continuous output jet steam, the velocity of flow is high very much, can change pressure into speed ability, make desorption gas entrance area pressure reduction produce the vacuum, through mixing chamber (venturi tube shrink section) and throat footpath intensive mixing compression, carry out the exchange of molecular diffusion energy, speed is balanced, reduce through the diffusion chamber speed again, pressure increases, be greater than atmospheric pressure, steam and pressure swing adsorption tower desorption gas are mixed the back and are spouted into in the gas buffer tank from the diffusion chamber export, noncondensable gas is appeared and is sent to emptying barrel evacuation, the lime set is drenched the discharge through gas buffer tank bottom is led, accomplish evacuation technology. Can improve the utilization rate of steam, and has the advantages of low energy consumption, safety, stability, low cost and easy operation.
Drawings
Fig. 1 is a schematic structural diagram of a steam jet vacuum extractor for pressure swing adsorption process of the present invention.
In the figure: 1 stop valve, 2 liquid separation tanks, 3 gate valves, 4 steam ejectors, 5 pressure swing adsorption towers, 6 butterfly valves, 7 check valves, 8 gas buffer tanks, 9 emptying cylinders, 10 steam inlets, 11 desorption gas inlets, 12 throats, 13 diffusion chambers and 14 vacuum meters.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to the attached figure 1, the steam jet vacuumizing device for the pressure swing adsorption process of the embodiment comprises a steam jet 4, wherein the steam jet 4 comprises a pump body, the pump body is respectively provided with a vacuum chamber, a mixing chamber, a throat 12 and a diffusion chamber 13 which are communicated from front to back, the front end of the vacuum chamber is provided with a steam inlet 10, the side surface of the vacuum chamber is provided with an analyzed gas inlet 11, the back end of the diffusion chamber 13 is provided with a discharge port, the steam jet further comprises a liquid separation tank 2, a gas buffer tank 8 and a vent cylinder 9, the top of the liquid separation tank 2 is provided with a steam outlet, the bottom of the liquid separation tank is provided with a hydrophobic outlet, the side surface of the liquid separation tank is provided with a steam inlet, the top of the gas buffer tank 8 is provided with a mixed gas outlet, the bottom of the gas buffer tank is provided with a first condensate outlet, the side surface of the gas buffer tank is provided with a first mixed gas inlet, the top of, the steam inlet of the liquid separating tank 2 is connected with a steam pipe network, the steam outlet of the liquid separating tank 2 is connected with the steam inlet 10 of the steam ejector 4, the desorption gas inlet 11 of the steam ejector 4 is connected with the vacuumizing port of the pressure swing adsorption tower 5, the discharge port of the steam ejector 4 is connected with the first mixed gas inlet of the gas buffer tank 8, and the mixed gas outlet of the gas buffer tank 8 is connected with the second mixed gas inlet of the emptying cylinder 9.
A steam trap valve group is arranged at a trap outlet at the bottom of the liquid separation tank 2.
A stop valve 1 is arranged at the steam inlet of the liquid separation tank 2.
A condensate draining and guiding valve is arranged in front of the stop valve 1 at the steam inlet of the liquid separating tank 2.
A gate valve 3 is arranged at the steam outlet of the liquid separation tank 2.
A first condensate outlet at the bottom of the gas buffer tank 8 and a second condensate outlet at the lower part of the emptying cylinder 9 are respectively provided with a condensate discharging and guiding valve group.
A check valve 7, a butterfly valve 6 and a replacement discharge valve are provided in this order between the desorption gas inlet 11 of the steam ejector 4 and the vacuum-pumping port of the pressure swing adsorption column 5.
A vacuum gauge is provided at the stripping gas inlet 11 of the steam injector 4.
This embodiment is made using existing technology, and the vacuum gauge and various valves are commercially available products of the prior art.
In the embodiment, low-pressure steam with the pressure of 0.8-1.7 Mpa is used as a power source, when the steam generator is used, the stop valve 1 is opened, the low-pressure steam of a steam pipe network is led to the liquid separating tank 2, the steam condensate is automatically discharged from the steam trap valve group at the bottom of the liquid separating tank 2, the gate valve 3 is opened after the temperature and the pressure in the liquid separating tank 2 are the same as those in the front of the stop valve 1, the steam is led into the steam ejector 4 and the gas buffer tank 8, the emptying cylinder 9 is emptied, the steam condensate is automatically discharged from the gas buffer tank 8 and the condensate discharge and guide valve group at the bottom of the emptying cylinder 9, when the pressure of a vacuum gauge at a desorption gas inlet of the steam ejector 4 reaches a set value of-0.08 Mpa, the butterfly valve 6 is opened, the pressure swing adsorption tower 5 starts to be vacuumized, the introduced amount of the steam is increased, and the pressure in. In the operation process, the condensate at the bottoms of the liquid separating tank 2, the gas buffer tank 8 and the emptying cylinder 9 needs to be drained. Has the advantages of low energy consumption, safety, stability, low cost and easy operation.
Claims (8)
1. A steam jet vacuum extractor for pressure swing adsorption process, which comprises a steam jet ejector, is characterized in that: also comprises a liquid separating tank, a gas buffer tank and an emptying cylinder, wherein the top of the liquid separating tank is provided with a steam outlet, the bottom of the liquid separating tank is provided with a hydrophobic outlet, the side surface of the liquid separating tank is provided with a steam inlet, the top of the gas buffer tank is provided with a mixed gas outlet, the bottom of the gas buffer tank is provided with a first condensate outlet, the side surface of the gas buffer tank is provided with a first mixed gas inlet, the top of the emptying cylinder is provided with an emptying port, the lower part of the emptying cylinder is provided with a second condensate outlet, a second mixed gas inlet is arranged on the side surface of the emptying cylinder and above the second condensate outlet, a steam inlet of the liquid separating tank is connected with a steam pipe network, a steam outlet of the liquid separating tank is connected with a steam inlet of the steam ejector, a desorption gas inlet of the steam ejector is connected with a vacuumizing port of the pressure swing adsorption tower, a discharge port of the steam ejector is connected with a first mixed gas inlet of a gas buffer tank, and a mixed gas outlet of the gas buffer tank is connected with a second mixed gas inlet of the emptying cylinder.
2. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: and a steam drain valve bank is arranged at a drain outlet at the bottom of the liquid separation tank.
3. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: a stop valve is arranged at the steam inlet of the liquid separation tank.
4. The vapor injection evacuator of claim 3, wherein: a condensate draining and guiding valve is arranged in front of the stop valve at the steam inlet of the liquid separating tank.
5. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: and a gate valve is arranged at the steam outlet of the liquid separation tank.
6. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: and a first condensate outlet at the bottom of the gas buffer tank and a second condensate outlet at the lower part of the emptying cylinder are respectively provided with a condensate discharging and guiding valve group.
7. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: a check valve, a butterfly valve and a replacement discharge valve are sequentially arranged between a desorption gas inlet of the steam ejector and a vacuumizing port of the pressure swing adsorption tower.
8. The vapor jet evacuating device for pressure swing adsorption process of claim 1, wherein: a vacuum gauge is provided at the stripping gas inlet of the steam injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299538.5U CN210119131U (en) | 2019-03-11 | 2019-03-11 | Steam jet vacuumizing device for pressure swing adsorption process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299538.5U CN210119131U (en) | 2019-03-11 | 2019-03-11 | Steam jet vacuumizing device for pressure swing adsorption process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210119131U true CN210119131U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920299538.5U Expired - Fee Related CN210119131U (en) | 2019-03-11 | 2019-03-11 | Steam jet vacuumizing device for pressure swing adsorption process |
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| CN (1) | CN210119131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058402A (en) * | 2021-11-22 | 2022-02-18 | 北京中科诚毅科技发展有限公司 | Dehydration feeding buffer tank, raw oil dehydration process adopting buffer tank and application |
-
2019
- 2019-03-11 CN CN201920299538.5U patent/CN210119131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058402A (en) * | 2021-11-22 | 2022-02-18 | 北京中科诚毅科技发展有限公司 | Dehydration feeding buffer tank, raw oil dehydration process adopting buffer tank and application |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |