CN210068419U - Cooling water circulation vacuum unit - Google Patents
Cooling water circulation vacuum unit Download PDFInfo
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- CN210068419U CN210068419U CN201920454289.2U CN201920454289U CN210068419U CN 210068419 U CN210068419 U CN 210068419U CN 201920454289 U CN201920454289 U CN 201920454289U CN 210068419 U CN210068419 U CN 210068419U
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- storage tank
- heat exchanger
- vacuum unit
- water storage
- venturi tube
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Abstract
The utility model provides a water circulation vacuum unit cooling device, the device include that water storage tank links to each other with the centrifugal pump import, and the export of centrifugal pump links to each other with the venturi tube, and horizontal condenser passes through the check valve and links to each other with the venturi tube import, and the venturi tube export connects the import of heat exchanger, and the export of heat exchanger links to each other with the water storage tank, and the water storage tank jar body is equipped with the temperature thermocouple to interlock with the pneumatic valve of intaking of heat exchanger, control vacuum unit water storage tank temperature. The utility model discloses well cooling nature hydrologic cycle vacuum unit during the use, opens horizontal condenser cold energy, sets for vacuum unit water storage tank temperature, through temperature regulation heat exchanger cold energy switch, can effectual improvement hydrologic cycle vacuum unit availability factor.
Description
Technical Field
The utility model relates to a cooling nature hydrologic cycle vacuum unit specifically is hydrologic cycle vacuum unit cooling device.
Background
In the petrochemical production process, volatile and corrosive media are pumped by vacuum or vacuum is used for reducing the boiling point for vacuum distillation. The traditional single-pump water circulation vacuum unit has the advantages of simple configuration, low investment cost, convenience, practicability and wide application in the field of petrochemical production. After the water circulation vacuum unit runs for a long time, the heating degree and the vacuum degree of the water body are reduced, so that the running efficiency of the vacuum unit is reduced. In order to ensure the vacuum degree, the water in the vacuum unit is replaced to reduce the temperature, so that the wastewater treatment capacity is greatly increased.
Disclosure of Invention
The utility model aims to improve the device of vacuum unit operating efficiency through feedwater cooling and vacuum gas cooling, the device includes water storage tank, centrifugal pump, venturi tube, vacuum storage tank, temperature thermocouple, horizontal condenser and heat exchanger.
The gas phase outlet of the horizontal condenser is connected with a venturi tube through a pipeline, the outlet of the venturi tube is connected with the inlet of the heat exchanger, the outlet of the heat exchanger is connected with a water storage tank through a pipeline, and the water storage tank is connected with the venturi tube through a centrifugal pump to form a circulation loop.
And a temperature thermocouple is arranged on the water storage tank and is interlocked with a cold energy water inlet pipeline pneumatic valve of the heat exchanger to control the temperature of the water storage tank of the vacuum unit.
The horizontal condenser is a vacuum air storage tank with condensation.
The heat exchanger is a plate heat exchanger or a tube type heat exchanger. The water storage tank is internally provided with a spraying device consisting of at least 3 layers of jacket heat exchange plates, and the cold energy of the heat exchange plates is circulating water or frozen brine.
Each layer of jacket heat exchange plate is composed of a plurality of pore plates with air holes, wherein the distance between the pore plates is DN 10-20; the aperture of the vent hole is DN80-DN 150.
The heat exchange plate is composed of a porous heat exchange plate with air holes, and when absorption liquid passes through the heat exchange plate, on one hand, the absorption liquid and cold energy of the heat exchange plate can fully exchange heat and reduce temperature; on the other hand, when the absorption liquid passes through the plurality of holes, the absorption liquid has a spraying effect and exchanges heat with air to reduce the temperature, the temperature of the absorption liquid is further reduced, and when the concentration and the temperature of the absorption liquid rise, the vacuum degree of the vacuum unit can be stabilized, and the service life of the vacuum unit is prolonged. The vent holes are higher than the heat exchange plates, so that on one hand, absorption liquid can smoothly pass through the heat exchange plates; on the other hand, when the porous heat exchange plate is blocked, the porous heat exchange plate can overflow from the vent hole to ensure normal production.
Drawings
Fig. 1 shows a cooling water circulation vacuum unit, wherein 1, a horizontal condenser, 2, a venturi, 3, a heat exchanger, 4, a temperature thermocouple, 5, a water storage tank, 6, a centrifugal pump, and 7, a jacket heat exchange plate.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
A cooling water circulation vacuum unit comprises a horizontal condenser 1, a venturi tube 2 heat exchanger 3, a temperature thermocouple 4, a water storage tank 5 and a centrifugal pump 6, wherein a gas phase outlet of the horizontal condenser 1 is connected with the venturi tube 2 through a pipeline, an outlet of the venturi tube 2 is connected with an inlet of the heat exchanger 3, an outlet of the heat exchanger 3 is connected with the water storage tank 5 through a pipeline, and the water storage tank 5 is connected with the venturi tube 2 through the centrifugal pump 6 to form a circulation loop.
The water storage tank 5 is provided with a temperature thermocouple 4 which is interlocked with a cold energy water inlet pipeline pneumatic valve of the heat exchanger 3.
The horizontal condenser 1 is a vacuum air storage tank with condensation.
The heat exchanger 3 is a plate heat exchanger or a tube heat exchanger.
The water storage tank 5 is internally provided with a spraying device consisting of at least 3 layers of jacket heat exchange plates 7, and the cold energy of the heat exchange plates is circulating water or frozen brine.
Each layer of jacket heat exchange plate 7 consists of a plurality of pore plates with air holes, wherein the distance between the pore plates is DN 10-20; the aperture of the vent hole is DN80-DN 150.
Example 2
Taking hydrochloric acid tail gas absorption as an example, a cooling water circulation vacuum unit is characterized in that 3/4 volume water is added into a water storage tank 5 before use, a cold energy (circulating water cooling) inlet and outlet valve of a horizontal condenser is set, the temperature of the water storage tank of the vacuum unit is set to be 20 ℃, a cold energy (circulating water cooling) outlet valve of a heat exchanger 3 is opened, and a pneumatic valve at the inlet of the heat exchanger is automatically adjusted according to the temperature. And (3) opening the centrifugal pump 6, returning the water in the water storage tank 5 to the water storage tank through the centrifugal pump 6, the venturi tube 2 and the heat exchanger 3 in sequence, and increasing the running time of the water circulation vacuum unit from the previous 2h to 8 h.
Example 3
Taking distilled methanol as an example, a cooling water circulation vacuum unit is characterized in that 3/4 volume water is added into a water storage tank 5 before use, an inlet valve and an outlet valve of the horizontal condenser cold energy (circulating water cooling) are set, the temperature of the water storage tank of the vacuum unit is set to be 25 ℃, an outlet valve of the heat exchanger 3 cold energy (circulating water cooling) is opened, and a pneumatic valve at the inlet of the heat exchanger is automatically adjusted according to the temperature. And (3) opening the centrifugal pump 6, returning the water in the water storage tank 5 to the water storage tank through the centrifugal pump 6, the venturi tube 2 and the heat exchanger 3 in sequence, and increasing the running time of the water circulation vacuum unit from 1h to 5 h.
Example 4
Taking the absorption of ammonia tail gas as an example, a cooling water circulation vacuum unit is characterized in that 3/4 volume water is added into a water storage tank 5 before use, a cold energy (circulating water cooling) inlet and outlet valve of a horizontal condenser is set, the temperature of the water storage tank of the vacuum unit is set to be 15 ℃, a cold energy (circulating water cooling) outlet valve of a heat exchanger 3 is opened, and a pneumatic valve at the inlet of the heat exchanger is automatically adjusted according to the temperature. And (3) opening the centrifugal pump 6, returning the water in the water storage tank 5 to the water storage tank through the centrifugal pump 6, the venturi tube 2 and the heat exchanger 3 in sequence, and increasing the running time of the water circulation vacuum unit from the previous 2h to 10 h.
Claims (6)
1. The utility model provides a cooling nature water cycle vacuum unit, includes horizontal condenser (1), venturi tube (2) heat exchanger (3), temperature thermocouple (4), water storage tank (5) and centrifugal pump (6), its characterized in that, horizontal condenser (1) gaseous phase export links to each other with venturi tube (2) through the pipeline, venturi tube (2) export meets heat exchanger (3) import, the export of heat exchanger (3) passes through the pipeline and links to each other with water storage tank (5), water storage tank (5) link to each other with venturi tube (2) through centrifugal pump (6), form circulation circuit.
2. The cooling water circulation vacuum unit according to claim 1, characterized in that the water storage tank (5) is provided with a temperature thermocouple (4) interlocked with a cold energy water inlet pipeline pneumatic valve of the heat exchanger (3).
3. The chiller water circulation vacuum machine set according to claim 1, wherein the horizontal condenser (1) is a vacuum storage tank with condensation.
4. The cooling water circulation vacuum unit according to claim 1, wherein the heat exchanger (3) is a plate heat exchanger or a tube heat exchanger.
5. The cooling water circulation vacuum unit according to claim 1, characterized in that a spraying device consisting of at least 3 layers of jacket heat exchange plates (7) is arranged in the water storage tank (5).
6. The cooling water circulation vacuum unit as claimed in claim 5, wherein each layer of jacket heat exchange plate (7) is composed of a plurality of perforated plates with air holes, and the distance between the perforated plates is DN 10-20; the aperture of the vent hole is DN80-DN 150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454289.2U CN210068419U (en) | 2019-04-04 | 2019-04-04 | Cooling water circulation vacuum unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454289.2U CN210068419U (en) | 2019-04-04 | 2019-04-04 | Cooling water circulation vacuum unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068419U true CN210068419U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920454289.2U Active CN210068419U (en) | 2019-04-04 | 2019-04-04 | Cooling water circulation vacuum unit |
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| Country | Link |
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| CN (1) | CN210068419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977053A (en) * | 2021-11-24 | 2022-01-28 | 攀枝花航友新材料科技有限公司 | Rapid cooling device for welding electrode and use method thereof |
-
2019
- 2019-04-04 CN CN201920454289.2U patent/CN210068419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977053A (en) * | 2021-11-24 | 2022-01-28 | 攀枝花航友新材料科技有限公司 | Rapid cooling device for welding electrode and use method thereof |
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