CN213657568U - Down-blowing type in-pipe spray evaporation condensing device - Google Patents
Down-blowing type in-pipe spray evaporation condensing device Download PDFInfo
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- CN213657568U CN213657568U CN202022276296.3U CN202022276296U CN213657568U CN 213657568 U CN213657568 U CN 213657568U CN 202022276296 U CN202022276296 U CN 202022276296U CN 213657568 U CN213657568 U CN 213657568U
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Abstract
The utility model relates to a down-blowing type in-pipe spray evaporation condensing device, which comprises a condensing device body, wherein an upper clapboard and a lower clapboard are arranged in the condensing device body, a working medium cavity is formed between the upper clapboard and the lower clapboard, a plurality of unit heat exchange pipes are arranged in the working medium cavity, the unit heat exchange pipes are inserted and fixed between the upper clapboard and the lower clapboard, spray pipes are coaxially inserted in the unit heat exchange pipes, and cooling water is uniformly sprayed on the inner surfaces of the heat exchange pipes through cooling water spray pipes in the heat exchange pipes, so that the heat exchange is more sufficient, and the heat exchange effect of an evaporation surface is effectively improved; the lower blowing structure enables the turbulence degree of cold air to be higher when the cold air is in contact with cooling water, heat and mass transfer between air and water is facilitated, the air quantity can be directly adjusted according to a simulation result, so that the cooling water is completely evaporated in the pipe, a lower water storage tank and a circulating water pump are not required to be arranged, and the power consumption of the water pump is further reduced.
Description
Technical Field
The utility model belongs to the energy comprehensive utilization field relates to the heat transfer technique, especially a intraductal spraying evaporation condensing equipment of formula of blowing down.
Background
ORC geothermal power generation, refrigeration and heating by using medium-low temperature geothermal resources are currently better energy-saving means, a cooling system is a key part in refrigeration (heat pump) circulation and ORC circulation, and currently, most air cooling and water cooling are applied, so that the energy consumption of the cooling system is overhigh due to respective defects of the air cooling and water cooling. The evaporative condenser utilizes heat and moisture exchange between water and air, has small heat exchange area, small water consumption and energy saving because of latent heat exchange, and has obvious advantages compared with air-cooled and water-cooled condensers. The existing evaporative condenser is that working medium flows in a pipe, and spray water is sprayed outside to cool the working medium.
In the prior art, the working medium of the traditional evaporative condenser flows in a pipe, and the following defects exist: the change of the specific volume of the working medium from the dead steam to the liquid state is large, and the pipe arrangement of a cooling device is difficult; the flow resistance caused by the flow in the working medium pipe is increased and is generally about 10 times of the flow resistance of the shell side, so that the pump work of the working medium side is inevitably required to be improved to keep the circulation working medium flowing, and further the energy consumption required by a heat pump system is increased; and the change of the condenser structure has influence on the heat exchange efficiency, so that the existing evaporative condenser has energy-saving improvement space.
The existing spray evaporation type condensing device mostly carries out spray evaporation outside a heat exchange pipe, and because the heat exchange pipe is exposed in the air for a long time, cooling water used for spraying outside the pipe can be doped with impurities in the air, so that the cooling water cannot be recycled, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a cooling water spray pipe in the accessible heat exchange tube with even spraying of cooling water make the heat transfer more abundant at the heat exchange tube internal surface to effectively improve the intraductal spraying evaporation condensing equipment that sprays of downdraught of evaporating surface heat transfer effect.
The utility model provides a its technical problem take following technical scheme to realize:
the utility model provides an intraductal spraying evaporation condensing equipment of formula of blowing down, includes the condensing equipment body, is provided with baffle and lower baffle in the body, goes up the baffle and forms the working medium chamber down between the baffle, is provided with a plurality of unit heat exchange tubes at the working medium intracavity, and unit heat exchange tube cartridge is fixed at last baffle under and between the baffle, and coaxial cartridge has the injection spray pipe in unit heat exchange tube.
And a plurality of through holes which are uniformly distributed are arranged on the spray pipe.
A cooling water inlet for supplying cooling water to the apparatus is provided at an upper portion of the main body, and a fan is provided at a lower portion of the main body.
And the two fans are respectively arranged at two sides of the condensation cavity at the lower part of the body and send cold air upwards into the heat exchange tube through the air inlet.
And a working medium inlet and a working medium outlet are respectively arranged on two sides of the working medium cavity.
The utility model has the advantages that:
1. this device is at the inside trompil of heat exchange tube, and the internal surface that cooling water permeates the heat exchange tube through the aperture forms the liquid film and carries out the heat transfer, nevertheless because the action of gravity, liquid film thickness is inhomogeneous during the use, and the heat transfer is incomplete, and the even internal surface that sprays at the heat exchange tube of cooling water is sprayed to the cooling water spray pipe in the atomizing structure accessible heat exchange tube for the heat transfer is more abundant, compares with seepage flow evaporation formula condensing equipment, and the atomizing can improve the heat transfer effect of evaporation surface.
2. Compared with the situation of upward blowing, the downward blowing structure of the device has the advantages that the air is uniform, the turbulence degree is higher when the downward blowing is in contact with cooling water, and the heat transfer and mass transfer between the air and the water are facilitated. In addition, the air valve is positioned in front of the fan in the upper air inducing mode, if the air inducing amount is changed through the valve, the air valve is not easy to accurately control, and the air valve of the condenser in the lower air inducing mode is positioned behind the outlet of the fan, and the air inlet amount is easy to change through adjusting the valve.
3. Compared with an upper blowing structure, the lower blowing structure of the device has the advantages that as the fan is positioned at the upper part of the condenser in the upper air induction mode, cooling water flows from top to bottom, and the excessive air volume can cause cooling water droplets to be directly taken away from the upper part by the fan; and the adjustable range of the air quantity in the downward blowing mode is enlarged, and the heat in the condensation heat exchange is taken away by the air, so that the downward blowing mode is favorable for increasing the heat exchange quantity of a single machine compared with the upward air induction.
4. This device sets up down the structure of blowing, can make the cooling water complete in intraductal evaporation according to the simulation result directly regulated amount of wind, need not set up down cistern and circulating water pump, and then reduce the power consumption of water pump.
5. The device has scientific and reasonable design, the spray pipes are coaxially inserted in the unit heat exchange pipes, and the cooling water is uniformly sprayed on the inner surfaces of the heat exchange pipes through the cooling water spray pipes in the heat exchange pipes, so that the heat exchange is more sufficient, and the heat exchange effect of the evaporation surface is effectively improved; the lower blowing structure enables the turbulence degree of cold air to be higher when the cold air is in contact with cooling water, heat and mass transfer between air and water is facilitated, the air quantity can be directly adjusted according to a simulation result, so that the cooling water is completely evaporated in the pipe, a lower water storage tank and a circulating water pump are not required to be arranged, and the power consumption of the water pump is further reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged structure diagram of the spray evaporation tube in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A downdraft type spray evaporation condensing device in a pipe comprises a condensing device body 1, an upper partition plate 10 and a lower partition plate 8 are arranged in the condensing device body, a working medium cavity is formed between the upper partition plate and the lower partition plate, a plurality of unit heat exchange pipes 4 are arranged in the working medium cavity and are inserted and fixed between the upper partition plate and the lower partition plate, and spray pipes 4-1 are coaxially inserted in the unit heat exchange pipes.
As shown in figure 2, a plurality of through holes 4-1-1 which are uniformly distributed are arranged on the spray pipe, the spray is inserted in the heat exchange pipe, and cooling water provided by the cooling water pipe is atomized by an external high-pressure pump and uniformly sprayed on the inner wall of the heat exchange pipe.
The upper part of the body is provided with a cooling water inlet 2 for supplying cooling water to the device, the lower part of the body is provided with two fans 6, the two fans are respectively arranged at two sides of a condensation cavity 7 at the lower part of the body, and cold air is upwards fed into the heat exchange tube through an air inlet 7-1.
Working medium inlets 3 and working medium outlets 9 are respectively arranged on two sides of the working medium cavity.
The working principle of the device is as follows:
when the spraying device is used, the fan is started, air is blown into the heat exchange tube from bottom to top, then water is injected into the spraying tube from the cooling water inlet, cooling water in the spraying tube forms spraying through high pressure and is sprayed to the inner surface of the heat exchange tube from the spraying holes, and a liquid film is formed. The working medium enters a working medium cavity outside the heat exchange tube of the condenser from the working medium inlet, a working medium liquid level 5 is formed in the working medium cavity and flows out from the working medium outlet, and cooling water inside the heat exchange tube and air inside the tube perform heat and humidity exchange to realize the cooling process of the working medium outside the heat exchange tube. When the condensing device stops working, the cooling water is firstly closed, and then the fan is closed, so that the cooling water is prevented from flowing into the fan from the lower part of the heat exchange tube.
The spray evaporation type condensing device of the device adjusts the spray water amount through the adjusting valve, and can automatically adjust the evaporation amount in the condensing device according to the change of environmental conditions, thereby saving the cooling water amount for heat exchange and reducing heat loss.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (5)
1. The utility model provides an intraductal spraying evaporation condensing equipment of formula of blowing down, includes the condensing equipment body, is provided with baffle and lower baffle in the body, goes up the baffle and forms the working medium chamber down between the baffle, is provided with a plurality of unit heat exchange tubes at the working medium intracavity, and unit heat exchange tube cartridge is fixed at last baffle and between the baffle down, its characterized in that: the spraying pipe is coaxially inserted in the unit heat exchange pipe.
2. The downdraft, in-pipe spray evaporative condenser apparatus of claim 1, wherein: a plurality of through holes which are uniformly distributed are arranged on the spray pipe.
3. The downdraft, in-pipe spray evaporative condenser apparatus of claim 1, wherein: the upper part of the body is provided with a cooling water inlet for providing cooling water for the device, and the lower part of the body is provided with a fan.
4. The downdraft, in-pipe spray evaporative condenser apparatus of claim 3, wherein: the two fans are respectively arranged at two sides of the condensation cavity at the lower part of the body and send cold air upwards into the heat exchange tube through the air inlet.
5. The downdraft, in-pipe spray evaporative condenser apparatus of claim 1, wherein: and a working medium inlet and a working medium outlet are respectively arranged on two sides of the working medium cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022276296.3U CN213657568U (en) | 2020-10-14 | 2020-10-14 | Down-blowing type in-pipe spray evaporation condensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022276296.3U CN213657568U (en) | 2020-10-14 | 2020-10-14 | Down-blowing type in-pipe spray evaporation condensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213657568U true CN213657568U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022276296.3U Active CN213657568U (en) | 2020-10-14 | 2020-10-14 | Down-blowing type in-pipe spray evaporation condensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213657568U (en) |
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2020
- 2020-10-14 CN CN202022276296.3U patent/CN213657568U/en active Active
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