CN212566990U - External spraying device of heat exchange tube - Google Patents
External spraying device of heat exchange tube Download PDFInfo
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- CN212566990U CN212566990U CN202021421423.8U CN202021421423U CN212566990U CN 212566990 U CN212566990 U CN 212566990U CN 202021421423 U CN202021421423 U CN 202021421423U CN 212566990 U CN212566990 U CN 212566990U
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Abstract
The scheme discloses a spraying device outside a heat exchange tube in the field of yellow phosphorus slag removal equipment, which comprises a spraying pipe and a spraying tower, wherein the heat exchange tube is positioned in the spraying tower; the top of the spray tower is provided with a steam cooling layer which is communicated with the spray tower, the steam cooling layer is communicated with a cold air circulating pipe, and the cold air circulating pipe is communicated with an air refrigerating device. Adopt the spray column to carry out the water conservancy diversion to the vapor that forms after being heated, at the in-process that vapor upwards flows and cool down gradually and liquefy in the spray column, fall back the cistern again, reduce the evaporation capacity of moisture, moisture reduces more slowly moreover, and the effectual link of this scheme of adoption has had current spray set during continuous operation, and more after the problem that the cooling is slower is more less more.
Description
Technical Field
The utility model belongs to yellow phosphorus slag removal equipment field, in particular to outside spray set of heat exchange tube.
Background
In the yellow phosphorus deslagging and granulating process, tailings at 1200 ℃ are washed by water to be cooled, tailings are granulated and discharged, washing water is continuously and circularly washed, the tailings are cooled, water is heated, a large amount of water is changed into steam in the process, and heat is taken away by the steam.
The furnace gas cooler can be used for cooling the tailings, is a heat exchange device for gas-gas exchange, and comprises four fans, 12 groups of stainless steel heat exchange tubes and 1 set of water spraying device. The steam for flushing the tailings enters the stainless steel heat exchange tube, the cooling of the furnace gas is realized through the radiating fins outside the stainless steel heat exchange tube, the fan plays a role in auxiliary cooling, the gas is forcibly blown to take away the heat in the stainless steel heat exchange tube, and the water spraying device is used for enhancing the heat exchange effect.
The spray set who adopts has reached the cyclic utilization effect of water at present, but owing to spraying the in-process, forms the vapor evaporation after being heated along with water, and the temperature risees gradually moreover, leads to more back water less and cooling more slowly, consequently in order to improve cooling efficiency and water economy resource, now urgently need provide one kind and be used for the heat exchange tube outside to spray the device of cooling.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is anticipated to provide an outside spray set of heat exchange tube to alleviate current spray set during continuous operation, the problem that the cooling is slower more toward the back water is less more.
The spray device outside the heat exchange tube comprises a spray pipe and a spray tower, wherein the heat exchange tube is positioned in the spray tower, the spray pipe comprises a water outlet section provided with a plurality of water outlet holes, the water outlet section is positioned above the heat exchange tube, the bottom of the spray tower is provided with a reservoir, a spray pump is arranged in the reservoir, the spray pipe is communicated with the spray pump, and a refrigerator is arranged in the reservoir; the top of the spray tower is provided with a steam cooling layer which is communicated with the spray tower, the steam cooling layer is communicated with a cold air circulating pipe, and the cold air circulating pipe is communicated with an air refrigerating device.
The working principle of the scheme is as follows: in this scheme, set up the cistern in the bottom of spray column, set up the spray pump in the cistern moreover, spray pump and shower intercommunication, so start the spray pump, can take out the water pumpingly to the shower in the cistern, water blowout from the shower sprays the cooling to the heat exchange tube of spray column inside.
The sprayed water falls into a reservoir at the bottom of the spray tower for accumulation and is refluxed for use. Because the refrigerator is arranged in the reservoir, the water in the reservoir is cooled to a certain degree, and the continuous jet heat exchange tube also enables the subsequent better cooling effect. And this scheme adopts the spray column to be located the top of heat exchange tube, spun water sprays on the heat exchange tube, form vapor after the water that sprays on the heat exchange tube is heated the atomizing, because vapor upflow's in-process also has one section stroke in the spray column, can be gradually the cooling and liquefy, drop in the cistern, also have the part to flow into in the cistern along the spray column wall, partly unliquefied vapor gets into the vapor cooling layer again, it has the cold air to let in the vapor cooling layer, vapor meets liquefaction after the cold, it flows down from the intercommunication department of vapor cooling layer and spray column to form water liquid, reduce the form that moisture passes through vapor and volatilizees.
The beneficial technical effect of this scheme is: in this scheme located the spray column with the heat exchange tube, and set up cistern, refrigerator and spray pump bottom the spray column for when water can cyclic utilization, cool down the water of backward flow, improve the cooling efficiency and the cooling effect of circulating water to the heat exchange tube. And adopt the spray column to carry out the water conservancy diversion to the vapor that forms after being heated, at the in-process that vapor upwards flows and cool down gradually and liquefy in the spray column, fall back the cistern again, reduce the evaporation capacity of moisture, moisture reduces more slowly moreover, and the effectual link of this scheme of adoption has been at continuous operation period, and more backward water is less the problem that cools down more slowly more. Practice proves that the time for effectively cooling the heat exchange pipe by adopting the scheme is more than three times of the cooling time of the existing spraying device.
Further, the refrigerator is a compression refrigerator. The compression type refrigerator utilizes the heat absorption and release phenomena generated in the phase state change process of the refrigerant with a very low boiling point, and achieves the purpose of reducing the temperature of a cooled object by means of the continuous cycle process of the suction compression of a compressor, the heat release condensation of a condenser, the throttling pressure reduction of a throttle valve and the heat absorption vaporization of an evaporator.
Further, the compression refrigerator is a vapor compression refrigerator.
Further, the vapor compression refrigerator is a two-stage vapor compression refrigerator.
Further, the external spraying device of the heat exchange tube further comprises a controller, the controller is arranged outside the spraying tower, a liquid level meter is further arranged in the reservoir, the liquid level meter is in electric signal connection with the controller, and the controller is in electric signal connection with an alarm. In the cistern in this scheme, along with the slow reduction of moisture, the water level can reduce gradually, sets up minimum water level and highest water level in the level gauge, monitors the water level in the cistern through the level gauge, and it is when the water level reaches minimum water level, and the level gauge is to the controller signals, and the controller is received the signal and is handled the back and to the alarm signals and make alarm sound production suggestion staff, and the limit can stop cooling work, adds water to the cistern. When the water is added until the water level reaches the highest water level, the prompt is sent out through signal transmission again, and the staff stops draining the water.
Furthermore, the cistern is external to have the water pipe, and the cistern is equipped with the control valve with the junction of water pipe. After the water in the reservoir is recycled for multiple times, the water volume is inevitably reduced more, under the condition, water can be supplied to the reservoir in time through the tap water pipe to supplement the water volume, the operation is convenient, and the work is not suspended in the process of cooling the heat exchange pipe.
Further, the control valve is an electric valve. The electric operation is convenient, and the valve works more stably.
Further, the electric valve is electrically connected with a driving sensor, and the driving sensor is in electric signal connection with the controller. When the water level reached minimum water level and reached the highest water level, the signal of sending was handled the back through the controller, and the controller is to drive sensor signals, and drive sensor drive motorised valve carries out the function of opening and closing, realizes this scheme heat sink's intellectuality, and it is more convenient to use.
Furthermore, the top of the steam cooling layer is in a bell mouth shape with a downward opening, and the highest position of the steam cooling layer is provided with an air outlet. Is beneficial to the concentration of cold air and improves the refrigeration effect.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the external spraying device of the heat exchange tube of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the heat exchange tube external spraying device of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a vapor cooling layer 1, a cold air circulation pipe 2, a partition plate 3, a circulation port A31, a circulation port B32, a spray pipe 4, a spray tower 5, a heat exchange pipe 6, an electric valve 7, a tap water pipe 8, a controller 9, a spray pump 10, a refrigerator 11, a liquid level meter 12, a reservoir 13 and an air outlet 14.
Example 1: the external spraying device of the heat exchange tube is shown as the attached figure 1: including controller 9 and spray column 5, spray column 5's top is equipped with vapor cooling layer 1, vapor cooling layer 1's top is the bellmouth form that the opening is decurrent, be favorable to the concentration of cold air, improve refrigeration effect, vapor cooling layer 1 highest point is equipped with gas outlet 14, connect through baffle 3 between spray column 5 and the vapor cooling layer 1, baffle 3 in this scheme is the arch, baffle 3's highest point is equipped with circulation opening B32, baffle 3's lowest department is equipped with circulation opening A31, cooling water after circulation opening A31 and the circulation opening B32 supply water vapor liquefaction passes through. The vapor cooling layer 1 is communicated with a cold air circulation pipe 2, and the cold air circulation pipe 2 is externally connected with an air refrigerating device (the scheme adopts a large air conditioner with the model of DAKC-82 of the Dolechi brand).
The heat exchange tube 6 is arranged in the spray tower 5 in an S shape, and two ends of the heat exchange tube 6 penetrate through the spray tower 5 to be communicated with other external process links. A spray pipe 4 is arranged in the spray tower 5, and the water outlet section of the spray pipe 4 is positioned above the heat exchange pipe 6; a plurality of water outlet holes are formed on the water outlet section; the bottom of spray tower 5 is equipped with cistern 13, and cistern 13 and spray tower 5 communicate, are equipped with spray pump 10 in the cistern 13, and the end of intaking of shower 4 communicates with spray pump 10, is equipped with refrigerator 11 in the cistern 13, and the refrigerator 11 of this scheme is two-stage vapor compression formula refrigerator 11 (this scheme adopts the two-stage vapor compression formula refrigerator of model FKH-822P of the all henry cooling equipment limited company of success).
The controller 9 is arranged on the outer wall of the reservoir 13, and the scheme adopts a Siemens programmable controller; the water reservoir 13 is externally connected with a tap water pipe 8, an electric valve 7 (the scheme adopts a stainless steel electric ball valve with the model of Q941F-16P of the NTFM brand) is arranged at the joint of the tap water pipe 8 and the water reservoir 13, the electric valve 7 is electrically connected with a driving sensor (the scheme adopts a driving sensor of MEAN WELL/Ming latitude brand: PSP-600-24), and a liquid level meter 12 (the scheme adopts an ultrasonic liquid level meter MIK-RP with the model of MIK-RP of the MEACON brand) is arranged in the water reservoir 13; the driving sensor and the liquid level meter 12 are in electric signal connection with the controller 9, and the controller 9 is also in electric signal connection with an alarm.
Example 2, a spray device outside the heat exchange pipe, as shown in fig. 2, is different from example 1 in that the partition 3 is a flat plate-like mesh plate.
Taking the embodiment 1 as an example, the specific implementation process in the scheme is as follows: the bottom of the spray tower 5 is provided with a water storage tank 13, a spray pump 10 is arranged in the water storage tank 13, and the spray pump 10 is communicated with the spray pipe 4, so that the spray pump 10 is started to pump water in the water storage tank 13 to the spray pipe 4, and the water is sprayed out from the spray pipe 4 to spray and cool the heat exchange pipe 6 in the spray tower 5.
The sprayed water falls into a reservoir 13 at the bottom of the spray tower 5 to be accumulated and used in a backflow mode. Because the refrigerator 11 is arranged in the reservoir 13, the water in the reservoir 13 is cooled to a certain degree, and the continuous jet heat exchange tube 6 also has better subsequent cooling effect. In addition, the spray tower 5 is positioned above the heat exchange tube 6, sprayed water is sprayed onto the heat exchange tube 6, the water sprayed onto the heat exchange tube 6 is heated and atomized to form water vapor, a stroke is also provided in the spray tower 5 in the process that the water vapor flows upwards, the water vapor can be gradually cooled and liquefied, and falls into the reservoir 13, a part of the water vapor also flows into the reservoir 13 along the wall of the spray tower 5, and the other part of the un-liquefied water vapor enters the steam cooling layer 1 through the flow opening A31 and the flow opening B32 on the partition plate 3 (in the embodiment 2, the un-liquefied water vapor enters the steam cooling layer 1 through meshes on the mesh plate), cold air is introduced into the steam cooling layer 1, the water vapor is liquefied after being cooled, water liquid is formed at the communication position of the steam cooling layer 1 and the spray tower 5, and the evaporation of the water vapor flowing downwards.
Along with the slow reduction of moisture, the water level can reduce gradually, sets up minimum water level and highest water level in level gauge 12, monitors the water level in the cistern 13 through level gauge 12, and it is when the water level reaches minimum water level, and level gauge 12 is to controller 9 signals, and controller 9 accepts the signal and handles back alarm signals and make alarm sound production suggestion staff, and the limit can stop cooling work, adds water to cistern 13. When the water is added until the water level reaches the highest water level, the prompt is sent out through signal transmission again, and the staff stops draining the water.
Claims (9)
1. The spray device outside the heat exchange tube comprises a spray pipe and is characterized by also comprising a spray tower, wherein the heat exchange tube is positioned in the spray tower, the spray pipe comprises a water outlet section provided with a plurality of water outlet holes, the water outlet section is positioned above the heat exchange tube, the bottom of the spray tower is provided with a reservoir, a spray pump is arranged in the reservoir, the spray pipe is communicated with the spray pump, and a refrigerator is arranged in the reservoir; the top of the spray tower is provided with a steam cooling layer which is communicated with the spray tower, the steam cooling layer is communicated with a cold air circulating pipe, and the cold air circulating pipe is communicated with an air refrigerating device.
2. The heat exchange tube external spray device of claim 1, wherein: the refrigerator is a compression refrigerator.
3. The heat exchange tube external spray device of claim 2, wherein: the compression type refrigerator is a vapor compression type refrigerator.
4. The heat exchange tube external spray device of claim 3, wherein: the vapor compression refrigerator is a two-stage vapor compression refrigerator.
5. The heat exchange tube external spraying device as recited in any one of claims 1 to 4, wherein: the external spraying device of the heat exchange tube further comprises a controller, the controller is arranged outside the spray tower, a liquid level meter is further arranged in the reservoir, the liquid level meter is in electric signal connection with the controller, and the electric signal connection with the controller is an alarm.
6. The heat exchange tube external spray device of claim 5, wherein: the cistern is external to have the water pipe, and the cistern is equipped with the control valve with the junction of water pipe.
7. The heat exchange tube external spray device of claim 6, wherein: the control valve is an electric valve.
8. The heat exchange tube external spray device of claim 7, wherein: the electrically operated valve is electrically connected with a driving sensor, and the driving sensor is electrically connected with a controller through an electric signal.
9. The external spraying device for the heat exchange tube of any one of claims 1 to 4 and 6 to 8, which is characterized in that: the top of the steam cooling layer is in a horn mouth shape with a downward opening, and the highest position of the steam cooling layer is provided with an air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421423.8U CN212566990U (en) | 2020-07-17 | 2020-07-17 | External spraying device of heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421423.8U CN212566990U (en) | 2020-07-17 | 2020-07-17 | External spraying device of heat exchange tube |
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| CN212566990U true CN212566990U (en) | 2021-02-19 |
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| CN202021421423.8U Active CN212566990U (en) | 2020-07-17 | 2020-07-17 | External spraying device of heat exchange tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040887A (en) * | 2022-06-18 | 2022-09-13 | 华海(北京)科技股份有限公司 | Air separation system utilizing cold energy of liquefied natural gas and cold energy utilization method |
-
2020
- 2020-07-17 CN CN202021421423.8U patent/CN212566990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040887A (en) * | 2022-06-18 | 2022-09-13 | 华海(北京)科技股份有限公司 | Air separation system utilizing cold energy of liquefied natural gas and cold energy utilization method |
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Address after: 550400 Yinzhan Industrial Park, Weng'an County, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee after: Guizhou Wengfu Chemical Co.,Ltd. Address before: 558000 chuanyandong village, Pingdingying Town, Weng'an county, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province Patentee before: WENGFU P-FOUR (GUIZHOU) LTD. |