CN213515141U - High-efficient vacuum pumping system of area refrigeration - Google Patents
High-efficient vacuum pumping system of area refrigeration Download PDFInfo
- Publication number
- CN213515141U CN213515141U CN202021878595.8U CN202021878595U CN213515141U CN 213515141 U CN213515141 U CN 213515141U CN 202021878595 U CN202021878595 U CN 202021878595U CN 213515141 U CN213515141 U CN 213515141U
- Authority
- CN
- China
- Prior art keywords
- outlet
- inlet
- water
- condenser
- communicated
- 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
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a high-efficiency vacuum pumping system with refrigeration, which comprises a water injection pump, a water tank, a heat exchange tube, a compressor and a heat exchanger, wherein the water injection pump is provided with an air suction port, the heat exchanger comprises a first inlet and a first outlet, an air suction port is used for absorbing gas in the condenser, a second inlet and a second outlet are arranged on the water tank, the second inlet is communicated with the first outlet, the second outlet is communicated with the first inlet, a heat exchange tube is arranged in the water tank, a third inlet and a third outlet are arranged on the compressor, the third inlet is communicated with the outlet end of the heat exchange tube, a fourth inlet, a fourth outlet, a first circulation inlet and a first circulation outlet are arranged on the heat exchanger, the first circulation inlet is communicated with the third outlet, the first circulation outlet is communicated with the inlet end of the heat exchange tube, the fourth outlet is communicated with a first inlet water chamber of the condenser, and the fourth inlet is communicated with a first outlet water chamber of the condenser. Through the technical scheme, the problem of low efficiency of the water injection pump caused by temperature influence is solved.
Description
Technical Field
The utility model relates to an about steam turbine system, indicate a high-efficient evacuation system of area refrigeration especially.
Background
The condenser is a heat exchanger for condensing the exhaust steam of the steam turbine into water, and is also called a water re-condenser. The condenser is mainly used in a steam turbine power device and is divided into a water-cooling condenser and an air-cooling condenser. The water-cooled surface condenser mainly comprises a shell, a tube bundle, a hot well, a water chamber and the like. The exhaust steam of the steam turbine enters the shell through the throat part, is condensed into water on the cooling pipe bundle and is collected in the hot well, and is pumped out by the condensate pump. Cooling water (also called circulating water) enters the cooling tube bundle from the inlet water chamber and is discharged from the outlet water chamber. In order to ensure that high vacuum and good heat transfer effect are maintained in the condenser when steam is condensed, the condenser is also provided with air extraction equipment which continuously extracts air and other non-condensed gases which leak into the condenser.
At present, common vacuum pumping equipment is a water jet air extractor, a matched water jet pump is generally 22 kw-55 kw (a small steam turbine with the power generation power of 3-30 MW), a thermal power plant is even more than 210kw (more than 50 MW), and the power generation efficiency of the steam turbine is low along with the pumped low-temperature steam heating water tank.
In order to ensure that the temperature of the water injection tank is reduced, a large amount of water supplementing methods are generally adopted to ensure that the working temperature of the water injection tank is lower than 35 ℃ as much as possible, and the water overflow of the water tank consumes very serious water; the water quantity wasted by water supplement of a 9MW steam turbine in a water injection tank is more than 300 tons, and a large amount of water enters the external environment through being discharged outside, so that environmental complaints of surrounding villagers are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main purpose, it is provided a high-efficient evacuation system of area refrigeration, solve the water jet pump and cause the problem of inefficiency along with the temperature influence.
For solving the technical problem, the utility model discloses the technical scheme who takes lies in:
an efficient vacuum pumping system with refrigeration, comprising:
the water injection pump is provided with an air suction port, a first inlet and a first outlet, the air suction port is used for absorbing gas in the condenser,
a second inlet and a second outlet are arranged on the water tank, the second inlet is communicated with the first outlet, the second outlet is communicated with the first inlet,
the heat exchange pipe is arranged in the water tank,
the compressor is provided with a third inlet and a third outlet, the third inlet is communicated with the outlet end of the heat exchange tube,
the heat exchanger is provided with a fourth inlet, a fourth outlet, a first circulation inlet and a first circulation outlet, the first circulation inlet is communicated with the third outlet, the first circulation outlet is communicated with the inlet end of the heat exchange tube, the fourth outlet is communicated with a first inlet water chamber of the condenser, and the fourth inlet is communicated with a first outlet water chamber of the condenser.
As a further technical proposal, the method also comprises
A first conduit through which the first recycle outlet communicates with the inlet end of the heat exchange tube,
a first shut-off valve disposed on the first conduit.
As a further technical proposal, the method also comprises
Two ends of the second pipeline are respectively communicated with the water tank and a hot well of the condenser,
a second shut-off valve disposed on the second conduit.
As a further technical proposal, the method also comprises
A third conduit through which the first outlet communicates with the second inlet,
the gas-water separator is arranged on the third pipeline and is provided with an air exhaust port.
As a further technical proposal, the method also comprises
The condenser is provided with a second circulation inlet, a second circulation outlet, a fifth inlet, a fifth outlet and a gas outlet, the second circulation inlet is communicated with a second outlet water chamber of the condenser, the second circulation outlet is communicated with a second inlet water chamber of the condenser, the fifth inlet is communicated with a water outlet of the condenser, the fifth outlet is communicated with a hot well of the condenser, and the gas outlet is communicated with the gas suction port.
As a further technical proposal, the method also comprises
A water discharge pipe, a water discharge port is arranged on the water tank, the water discharge pipe is arranged on the water discharge port,
a third stop valve disposed on the drain pipe.
As a further technical proposal, the method also comprises
And the air outlet is communicated with the air suction port through the fourth pipeline, and the fourth pipeline is provided with a check valve, a stop valve and a ball valve.
The utility model has the advantages that:
the utility model discloses simple structure makes the water tank refrigerate under the effect of heat exchange tube, and this structure has formed a circulative cooling system with the cooling device of water tank and condenser simultaneously, does not need a large amount of moisturizing can guarantee to penetrate water pump work at the optimum temperature point, can accomplish the refrigeration of condenser again, practices thrift the energy consumption.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Description of the reference numerals
0. A condenser, 01, a first inlet water chamber, 02, a first outlet water chamber, 03, a hot well, 04, a steam-water port, 05, a second inlet water chamber, 06, a second outlet water chamber, 1, a water jet pump, 101, a suction port, 102, a first inlet, 103, a first outlet, 2, a water tank, 21, a second inlet, 22, a second outlet, 3, a heat exchange pipe, 4, a compressor, 41, a third inlet, 42, a third outlet, 5, a heat exchanger, 51, a fourth inlet, 52, a fourth outlet, 53, a first circulation inlet, 54, a first circulation outlet, 6, a first pipeline, 7, a first stop valve, 8, a second pipeline, 9, a second stop valve, 10, a third pipeline, 11, a gas-water separator, 111, an air exhaust port, 12, a condenser, 121, a second circulation inlet, 122, a second circulation outlet, 123, a fifth inlet, 124, a fifth outlet, 125, and an air outlet, 13. a drain pipe, 14, a third stop valve, 15, a fourth pipe, 16, a check valve, 17, a ball valve.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in figure 1, the utility model provides a high-efficiency vacuum-pumping system with refrigeration,
comprises a condenser 12, a second circulating inlet 121, a second circulating outlet 122, a fifth inlet 123, a fifth outlet 124 and an air outlet 125 are arranged on the condenser 12, the second circulating inlet 121 is communicated with a second outlet water chamber 06 of a condenser 0, the second circulating outlet 122 is communicated with a second inlet water chamber 05 of the condenser 0, the fifth inlet 123 is communicated with a water outlet of the condenser 0, the fifth outlet 124 is communicated with a hot well 03 of the condenser 0, an air suction port 101, a first inlet 102 and a first outlet 103 are arranged on the water jet pump 1, the air suction port 101 is communicated with the air outlet 125 through a fourth pipeline 15, a check valve 16, a stop valve and a ball valve 17 are arranged on the fourth pipeline 15, a second inlet 21 and a second outlet 22 are arranged on the water tank 2, the second inlet 21 is communicated with the first outlet 103 through a third pipeline 10, a separator 11 is arranged on the third pipeline 10, an air-water separator 11 is provided with an air-water outlet 111, the second outlet 22 is communicated with the first inlet 102, the heat exchange tube 3 is arranged in the water tank 2, the compressor 4 is provided with a third inlet 41 and a third outlet 42, the third inlet 41 is communicated with the outlet end of the heat exchange tube 3, the heat exchanger 5 is provided with a fourth inlet 51, a fourth outlet 52, a first circulation inlet 53 and a first circulation outlet 54, the first circulation inlet 53 is communicated with the third outlet 42, the first circulation outlet 54 is communicated with the inlet end of the heat exchange tube 3 through a first pipeline 6, the first stop valve 7 is arranged on the first pipeline 6, the fourth outlet 52 is communicated with a first inlet water chamber 01 of the condenser 0, and the fourth inlet 51 is communicated with a first outlet water chamber 02 of the condenser 0.
Further, the both ends of second pipeline 8 communicate with water tank 2, condenser 0's hot-well 03 respectively, and second stop valve 9 sets up on second pipeline 8.
Further, the water tank 2 is provided with a drain port, a drain pipe 13 is provided on the drain port, and a third shut-off valve 14 is provided on the drain pipe 13.
In the use process of the present embodiment, the condenser 12 is arranged to form a primary water circulation vacuum pumping system, and the specific principle is as follows: the steam condenser 0 condenses the steam continuously entering from the steam turbine into water, meanwhile, part of the water vapor and the water in the steam condenser 0 continuously enter the condenser 12, the condenser 12 continuously condenses the water vapor therein into water, so that the water vapor in the condenser 12 is continuously reduced, negative pressure is formed in the continuously condensing and continuously circulating process, the air in the steam condenser 0 is sucked, and the steam condenser 0 is subjected to preliminary vacuumizing operation. After the condenser 12 continuously sucks air in the condenser 0, because water with certain pressure continuously passes between the water injection pump 1 and the water tank 2, the air suction port 101 of the water injection pump 1 continuously sucks the air in the condenser 12, the air and the water are separated through the gas-water separator 11, the gas is discharged into the atmosphere through the air exhaust port 111, the separated water flows into the water tank 2 to form a water injection air exhaust circulation system, and therefore the condenser 12 and the water injection air exhaust system jointly perform vacuum pumping treatment on the condenser 0. The water changing pipe arranged in the water tank 2 cools the circulating water in the water tank 2, and the water jet pump 1 is guaranteed to work at the optimal temperature point. This structural design is reasonable, has guaranteed condenser 0's evacuation effect, makes the circulation complete unobstructed, and the water economy resource has reduced penetrating water exhaust apparatus's power output, has improved the generated energy to avoid the waste to the energy.
The arrangement of the heat exchanger 5, the compressor 4 and the heat exchange tube 3 of the water tank 2 provides a refrigeration environment for the water tank 2, so that the whole air exhaust system of the condenser 0 forms a complete cycle. The compressor 4 refrigerates the circulating working condensed water of the heat exchanger 5 and the water tank 2, and ensures the constancy of the water temperature, thereby ensuring the effectiveness of condensation. The working circulating water of the heat exchanger 5 cools the other condensed working water of the condenser 0, so that the condensation effect of the condenser 0 is ensured. Because the gas pumped by the water injection pump 1 may contain a small amount of steam, latent heat of vaporization is released during condensation, and most of the mechanical work consumed by the water injection pump 1 is converted into heat energy of working water, so that the temperature of the working water is increased, the working water is evaporated in an air exhaust system, the pressure is increased, and the vacuum in the condenser 0 is reduced. Therefore, the circulating working condensate pipe of the heat exchanger 5 is communicated with the heat exchange pipe 3 of the water tank 2 to form circulation, the water tank 2 is cooled by the circulating working water of the water injection pump 1, the efficient operation of the water injection air exhaust system is ensured, the water injection pump 1 is ensured to work at the optimal temperature point, the vacuum effect of the condenser 0 is enhanced, and water resources are saved. The circulating medium in the heat exchanger 5, the compressor 4 and the heat exchange tube 3 may be air or water.
And a condensation working water pipe of the condenser 0 is connected with a condensation working water pipe of the condenser 12 end to form circulation, so that the condensation temperatures of the condenser 0 and the condenser 12 are consistent, and energy is saved. The condensed water in the condenser 12 continuously flows into the hot well 03 of the condenser 0, and the second pipeline 8 arranged between the hot well 03 and the water tank 2 can discharge the condensed water in the hot well 03 into the water tank 2 by adjusting the second stop valve 9 when needed, so that the normal water level in the hot well 03 is ensured, and the vacuum effect is ensured. The water drained from the hot well 03 into the water tank 2 can be drained through a drain pipe 13 and be connected to other water circulation processes.
The first conduit 6 is provided with a first shut-off valve 7 to facilitate control of the medium circulating between the heat exchanger 5 and the heat exchange tube 3. The check valve 16, the stop valve and the ball valve 17 are arranged on the fourth pipeline 15 between the air suction port 101 of the water jet pump 1 and the air outlet 125 of the condenser 12, so that the flow of the fourth pipeline 15 is limited and stopped, and the working water is prevented from being sucked into the condenser 12 to cause backflow when the air ejector fails. The water injection pumps 1 can be arranged into two parts, one is normally used, and the other is standby, so that the continuity of the operation of the steam turbine is ensured.
The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a high-efficient vacuum pumping system of area refrigeration which characterized in that includes:
the water injection pump (1) is provided with a gas suction port (101), a first inlet (102) and a first outlet (103), the gas suction port (101) is used for absorbing gas in the condenser (0),
a water tank (2), wherein a second inlet (21) and a second outlet (22) are arranged on the water tank (2), the second inlet (21) is communicated with the first outlet (103), the second outlet (22) is communicated with the first inlet (102),
the heat exchange tube (3), the heat exchange tube (3) is arranged in the water tank (2),
the compressor (4) is provided with a third inlet (41) and a third outlet (42), the third inlet (41) is communicated with the outlet end of the heat exchange tube (3),
the heat exchanger (5) is provided with a fourth inlet (51), a fourth outlet (52), a first circulating inlet (53) and a first circulating outlet (54), the first circulating inlet (53) is communicated with the third outlet (42), the first circulating outlet (54) is communicated with the inlet end of the heat exchange tube (3), the fourth outlet (52) is communicated with a first inlet water chamber (01) of the condenser (0), and the fourth inlet (51) is communicated with a first outlet water chamber (02) of the condenser (0).
2. The high-efficiency vacuum pumping system with refrigeration function as set forth in claim 1, further comprising
A first conduit (6) through which the first recycle outlet (54) communicates with the inlet end of the heat exchange tube (3),
a first shut-off valve (7), said first shut-off valve (7) being arranged on said first conduit (6).
3. A refrigerating high-efficiency vacuum pumping system as recited in claim 2, further comprising
A second pipeline (8), wherein two ends of the second pipeline (8) are respectively communicated with the water tank (2) and a hot well (03) of the condenser (0),
a second shut-off valve (9), the second shut-off valve (9) being disposed on the second conduit (8).
4. A refrigerating high-efficiency vacuum pumping system as recited in claim 3, further comprising
A third duct (10), through which the first outlet (103) communicates with the second inlet (21),
the gas-water separator (11), the gas-water separator (11) is arranged on the third pipeline (10), and an air exhaust port (111) is arranged on the gas-water separator (11).
5. A refrigerating high-efficiency vacuum pumping system as recited in claim 3, further comprising
The condenser (12), be provided with second circulation import (121), second circulation export (122), fifth import (123), fifth export (124) and gas outlet (125) on condenser (12), second circulation import (121) and second export hydroecium (06) of condenser (0) intercommunication, second circulation export (122) and second import hydroecium (05) intercommunication of condenser (0), steam-water mouth (04) intercommunication of fifth import (123) and condenser (0), fifth export (124) and heat well (03) intercommunication of condenser (0), gas outlet (125) with induction port (101) intercommunication.
6. A refrigerating high-efficiency vacuum pumping system as recited in claim 3, further comprising
A water discharge pipe (13), a water discharge port is also arranged on the water tank (2), the water discharge pipe (13) is arranged on the water discharge port,
a third shut-off valve (14), the third shut-off valve (14) being disposed on the drain pipe (13).
7. The high-efficiency vacuum pumping system with refrigeration function as set forth in claim 5, further comprising
And the air outlet (125) is communicated with the air suction port (101) through the fourth pipeline (15), and a check valve (16) and a ball valve (17) are arranged on the fourth pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878595.8U CN213515141U (en) | 2020-09-01 | 2020-09-01 | High-efficient vacuum pumping system of area refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878595.8U CN213515141U (en) | 2020-09-01 | 2020-09-01 | High-efficient vacuum pumping system of area refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213515141U true CN213515141U (en) | 2021-06-22 |
Family
ID=76443285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021878595.8U Active CN213515141U (en) | 2020-09-01 | 2020-09-01 | High-efficient vacuum pumping system of area refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213515141U (en) |
-
2020
- 2020-09-01 CN CN202021878595.8U patent/CN213515141U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201412195Y (en) | Device for directly utilizing condensation heat of steam exhausted from steam turbine of power plant | |
| CN207094731U (en) | A kind of cold end is exhaust heat stepped to utilize heating system | |
| CN206617195U (en) | A kind of large-scale pair of back pressure birotor interchangeable Steam Turbine | |
| CN1924303A (en) | Heat pump condensing type steam power recirculation | |
| CN102748963A (en) | Closed water cooling system with double-evaporative cooling pressure | |
| CN209910427U (en) | Peak cooling system based on indirect air cooling unit | |
| CN213515141U (en) | High-efficient vacuum pumping system of area refrigeration | |
| KR20130101723A (en) | Waste heat recovery system for ship that can remove dissolved oxygen by minimizing steam consumption | |
| CN215598142U (en) | System for improving vacuum pumping efficiency of thermal power plant | |
| CN207112961U (en) | The heating system that a kind of residual heat of condensed water couples with waste water residual heat | |
| CN112797810B (en) | Condensation heat recovery system of power plant | |
| CN102650218B (en) | Turbine generator matched with evaporative hydrogen cooling system | |
| CN205860801U (en) | direct air cooling system with peak cooling device | |
| CN212692569U (en) | Dry quenching air cooling condensing system | |
| CN212133342U (en) | Air-wet series cooling system suitable for air cooling unit | |
| CN209893979U (en) | Peak cooling system of indirect air cooling unit | |
| CN209326399U (en) | Condense island system | |
| CN206256941U (en) | A kind of condensing turbine organic working medium circulating cooling system | |
| CN213331204U (en) | Energy-saving air exhaust device | |
| CN107726878B (en) | Natural ventilation direct air cooling system | |
| CN213808246U (en) | Steam turbine vacuum system | |
| CN207048854U (en) | Natural gas power unit waste-heat recovery device | |
| CN202048615U (en) | Prefabricated radiating and heating system with fully-welded plate pipe condenser | |
| CN205172652U (en) | Turbo generator set unites cooling system | |
| CN104564189B (en) | The Application way of residual heat of electric power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |