CN115265237A - Heat exchange method - Google Patents
Heat exchange method Download PDFInfo
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- CN115265237A CN115265237A CN202210884856.4A CN202210884856A CN115265237A CN 115265237 A CN115265237 A CN 115265237A CN 202210884856 A CN202210884856 A CN 202210884856A CN 115265237 A CN115265237 A CN 115265237A
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- slurry
- water flow
- water
- tank
- heated
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002002 slurry Substances 0.000 claims abstract description 222
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 165
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000012163 sequencing technique Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 56
- 238000001816 cooling Methods 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 210000004911 serous fluid Anatomy 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present solution relates to a heat exchange method. The method comprises the following steps: pouring the slurry to be cooled from a slurry inlet arranged at the top of the slurry tank, and simultaneously pouring the water flow to be heated from a water flow inlet arranged at the bottom of the jacket layer; the jacket layer is arranged outside the tank body of the slurry tank; moving the slurry to be cooled in the slurry tank from top to bottom; the water flow to be heated moves from bottom to top in the jacket layer; carrying out heat exchange with the water flow to be heated in the flowing process of the slurry to be cooled to obtain cooled slurry and heated water flow; the cooled slurry flows out from a slurry outlet at the bottom of the slurry tank; the heated water stream flows out of the water outlet at the top of the jacket layer. Because the flow direction of rivers is opposite with the flow direction of thick liquid, makes water heat up gradually, makes thick liquid cool down gradually, need not to use the cooler can cool off thick liquid, and need not to use heating device can heat up the temperature, reasonable recovered energy.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to a heat exchange method.
Background
In a calcium plant, large quantities of slurry are typically produced. In the production process of the slurry, the temperature of the slurry is relatively high, and therefore, the slurry needs to be cooled to lower the temperature of the slurry. In order to use the slurry, the temperature of the slurry needs to be cooled to 20 ℃, the temperature of the input slurry is at least 80-90 ℃, the conventional slurry cooling is to introduce the slurry into a cooling tank, and the temperature of the slurry is reduced through the circulating flow of a cooling liquid outside the cooling tank, so that the purpose of cooling the slurry is achieved; alternatively, a cooler is used, with water or air as the coolant to remove heat from the slurry. In the calcium manufacturing plant, a large amount of hot water is also needed, the temperature of common tap water is about less than or equal to 11 ℃, and the temperature of the hot water needed to be used in the calcium manufacturing plant is about 75 ℃, so that the tap water needs to be heated to meet the requirements of the calcium manufacturing plant. The conventional heating method of tap water is to heat tap water by using a heating device.
However, the conventional cooling or heating method has a problem of low cooling or heating efficiency.
Disclosure of Invention
In order to solve the above-described problems, a heat exchange method is provided that can improve the efficiency of cooling or heating.
A method of exchanging heat, the method comprising:
pouring the slurry to be cooled from a slurry inlet arranged at the top of the slurry tank, and simultaneously pouring the water flow to be heated from a water flow inlet arranged at the bottom of the jacket layer; the jacket layer is arranged outside the tank body of the slurry tank;
the slurry to be cooled moves from top to bottom in the slurry tank through the slurry inlet; the water flow to be heated moves from bottom to top in the jacket layer through the water flow inlet;
the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled, and the slurry to be cooled exchanges heat with the water flow to be heated in the flow process to obtain cooled slurry and heated water flow;
the cooled slurry flows out from a slurry outlet arranged at the bottom of the slurry tank; the heated water flows out from a water outlet arranged at the top of the jacket layer.
In one embodiment, the slurry tank is provided with a plurality of slurry tanks; the method further comprises the following steps:
sequencing all the slurry tanks in parallel;
connecting the water flow outlet of the jacket layer with the water flow inlet of the adjacent jacket layer through a water flow transmission pipe;
the water flow to be heated flows into the water flow transmission pipe through the water flow outlet and then flows into the adjacent jacket layer through the water flow inlet of the adjacent jacket layer.
In one embodiment, a slurry storage tank is arranged at the slurry tank; the method further comprises the following steps:
connecting the slurry outlet on the slurry tank with the slurry storage tank;
the cooled slurry flows through the slurry outlet into the slurry storage tank for storage.
In one embodiment, a water flow storage tank is further arranged at the slurry tank arranged at the tail end; the method further comprises the following steps:
connecting the water outlet arranged on the extreme jacket layer with the water storage tank through the water conveying pipe;
the heated water stream flows through the water stream outlet into the water stream storage tank for storage.
In one embodiment, valves are arranged at the slurry inlet, the slurry outlet, the water inlet and the water outlet; the method further comprises the following steps:
controlling the flowing direction of the slurry to be cooled in each slurry tank through the valve;
the flowing direction of the water flow to be heated in each jacket layer is controlled by the valve.
In one embodiment, the water flow transmission pipes are all steel pipes.
In one embodiment, the slurry tank is cylindrical in shape.
In one embodiment, the slurry tank is made of steel.
In the heat exchange method, the slurry to be cooled is poured from a slurry inlet arranged at the top of the slurry tank, and meanwhile, the water flow to be heated is poured from a water flow inlet arranged at the bottom of the jacket layer; the jacket layer is arranged outside the tank body of the slurry tank; the slurry to be cooled moves from top to bottom in the slurry tank through the slurry inlet; the water flow to be heated moves from bottom to top in the jacket layer through the water flow inlet; the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled, and the slurry to be cooled exchanges heat with the water flow to be heated in the flow process to obtain cooled slurry and heated water flow; the cooled slurry flows out from a slurry outlet arranged at the bottom of the slurry tank; the heated water flows out from a water outlet arranged at the top of the jacket layer. Heated water flows are input from a water flow inlet and flow out from a water flow outlet after passing through a jacket layer outside a slurry tank; meanwhile, the slurry to be cooled flows into the slurry tank from the slurry inlet, and the cooled slurry flows out from the slurry outlet; because the flow direction of rivers is opposite with the flow direction of thick liquid, makes water heat up gradually, makes thick liquid cool down gradually, need not to use the cooler can cool off thick liquid, and need not to use heating device can heat up the temperature, reasonable recovered energy.
Drawings
FIG. 1 is a diagram of an exemplary heat exchange process;
FIG. 2 is a schematic flow diagram of a heat exchange process according to one embodiment;
FIG. 3 is a diagram of an environment in which a heat exchange method according to another embodiment is applied;
FIG. 4 is an environmental diagram illustrating a heat exchange method according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The heat exchange method provided by the embodiment of the application can be applied to the application environment shown in fig. 1. As shown in fig. 1, the application environment includes a slurry tank 100 and an interlayer 200, and the interlayer 200 is disposed outside a tank body of the slurry tank 100. Pouring the slurry to be cooled from a slurry inlet 110 arranged at the top of the slurry tank 100, and simultaneously pouring the water flow to be heated from a water flow inlet 220 arranged at the bottom of the jacket layer 200; the jacket layer 200 is arranged outside the tank body of the slurry tank 100; the slurry to be cooled moves from top to bottom in the slurry tank 100 through the slurry inlet 110; the water to be heated moves from bottom to top in the jacket layer 200 through the water inflow port 220; the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled, and the slurry to be cooled exchanges heat with the water flow to be heated in the flow process to obtain cooled slurry and heated water flow; the cooled slurry flows out from a slurry outlet 120 arranged at the bottom of the slurry tank 100; the heated water stream exits through a water outlet 210 provided at the top of the jacket layer 200.
In one embodiment, as shown in FIG. 2, a heat exchange method is provided, comprising the steps of:
step 202, pouring slurry to be cooled from a slurry inlet arranged at the top of a slurry tank, and simultaneously pouring water flow to be heated from a water flow inlet arranged at the bottom of a jacket layer; the jacket layer is arranged outside the tank body of the slurry tank.
The temperature of the slurry to be cooled may be greater than or equal to 80 ℃ and the temperature of the water stream to be heated may be less than or equal to 11 ℃. The slurry inlet may be provided at a position at the top of the slurry tank, and the slurry to be cooled may flow into the slurry tank through the slurry inlet.
The external part of the slurry tank body can be provided with a jacket layer, wherein the jacket layer can be provided with a water flow inlet. Specifically, the water flow inlet may be provided at a position at the bottom of the jacket layer, and the water flow to be heated may flow into the jacket layer through the water flow inlet.
The slurry inlet is arranged at the top of the slurry tank, and the water flow inlet is arranged at the bottom of the jacket layer, namely the slurry inlet and the water flow inlet are arranged at two positions, namely an upper position and a lower position, and are respectively used for pouring slurry to be cooled and water flow to be heated.
Step 204, moving the slurry to be cooled in the slurry tank from top to bottom through a slurry inlet; the water to be heated moves from bottom to top in the jacket layer through the water inflow port.
When waiting to cool off the thick liquid and get into the thick liquid jar through thick liquid entry, because thick liquid entry setting is in thick liquid jar top position department, wait to cool off the thick liquid can be from last down removal in the thick liquid jar.
When the water flow to be heated enters the jacket layer through the water flow inlet, the water flow to be heated can move from bottom to top in the jacket layer because the water flow inlet is arranged at the bottom of the jacket layer.
In step 206, the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled, and the slurry to be cooled exchanges heat with the water flow to be heated in the flow process to obtain cooled slurry and heated water flow.
In this embodiment, the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled; because the temperature of the slurry to be cooled is greater than or equal to 80 ℃, the temperature of the water flow to be heated is less than or equal to 11 ℃, and the temperature difference between the slurry to be cooled and the water flow to be heated is large, the slurry to be cooled can exchange heat with the water flow to be heated in the flowing process, so that the temperature of the slurry to be cooled is gradually reduced, and the temperature of the water flow to be heated is gradually increased, thereby obtaining the cooled slurry and the heated water flow.
Wherein the temperature of the cooled slurry may be 20 ℃ and the temperature of the heated water stream may be 75 ℃.
208, the cooled slurry flows out from a slurry outlet arranged at the bottom of the slurry tank; the heated water flows out from a water outlet arranged at the top of the jacket layer.
In the embodiment, slurry to be cooled is poured from a slurry inlet arranged at the top of the slurry tank, and simultaneously, water flow to be heated is poured from a water flow inlet arranged at the bottom of the jacket layer; the jacket layer is arranged outside the tank body of the slurry tank; the slurry to be cooled moves from top to bottom in the slurry tank through the slurry inlet; the water to be heated moves from bottom to top in the jacket layer through the water inflow port; the flowing direction of the water flow to be heated is opposite to the flowing direction of the serous fluid to be cooled, and the serous fluid to be cooled exchanges heat with the water flow to be heated in the flowing process to obtain cooled serous fluid and heated water flow; the cooled slurry flows out from a slurry outlet arranged at the bottom of the slurry tank; the heated water flows out from a water outlet arranged at the top of the jacket layer. Heated water flow is input from a water flow inlet and flows out from a water flow outlet after passing through a jacket layer outside a slurry tank; meanwhile, the slurry to be cooled flows into the slurry tank from the slurry inlet, and the cooled slurry flows out from the slurry outlet; because the flow direction of rivers is opposite with the flow direction of thick liquid, makes water heat up gradually, makes thick liquid cool down gradually, need not to use the cooler can cool off thick liquid, and need not to use heating device can heat up the temperature, reasonable recovered energy.
In one embodiment, as shown in fig. 3, the slurry tank 100 may be provided in several numbers. In this embodiment, taking the example that the slurry tank 100 is provided with 3, the provided heat exchange method may further include: sequencing the slurry tanks 100 in parallel; connecting the water outlet 210 of the jacketed layer 200 with the water inlet 220 of the adjacent jacketed layer 200 via the water transport pipe 600; the water to be heated flows into the water flow delivery pipe 600 through the water flow outlet 210 and then flows into the adjacent jacket layer 200 through the water flow inlet 220 of the adjacent jacket layer 200.
During slurry cooling, the slurry tanks 100 can be arranged in parallel, the water outlet 210 of the jacket layer 200 on the first slurry tank 100 can be connected with the water inlet 220 of the jacket layer 200 on the second slurry tank 100 through the water conveying pipe 600, and similarly, the water outlet 210 of the jacket layer 200 on the second slurry tank 100 can be connected with the water inlet 220 of the jacket layer 200 on the third slurry tank 100 through the water conveying pipe 600, so that the water to be heated can be conveyed among the jacket layers 200.
Wherein, after the slurry in the slurry tank 100 is cooled down by the water flow in the jacket layer 200, the cooled slurry can be discharged through the slurry outlet 120; because the water flow in the jacket layer 200 on the surface of the second slurry tank 100 flows out from the jacket layer 200 on the surface of the first slurry tank 100, and the temperature of the water flow is already raised at this time, a water flow with a lower temperature can be added at the water flow inlet 220 of the jacket layer 200 on the surface of the second slurry tank 100, so that the slurry in the second slurry tank 100 is cooled, and the temperature of the water flow is raised at the same time.
In this embodiment, the sequence between the slurry tanks can be changed at any time, after the slurry in the first slurry tank is cooled down under the action of the water flow in the jacket layer, the first slurry tank can be moved to the third slurry tank to be used as a new third slurry tank, and at this time, the water flow in the jacket layer on the surface of the new third slurry tank can be transmitted from the jacket layer on the surface of the new second slurry tank. Similarly, the first slurry tank can be moved to a position behind the second slurry tank to serve as a new second slurry tank, and the second slurry tank can be moved to a position ahead of the first slurry tank to serve as a new first slurry tank, namely, the sequence of the slurry tanks is changed at any time according to the temperature of slurry in the slurry tanks.
In this embodiment, by providing a plurality of slurry tanks 100, and providing the jacket layers 200 on the slurry tanks 100, the water flow to be heated is transmitted between the jacket layers 200, the temperature of the slurry to be cooled is gradually reduced, and the temperature of the water flow to be heated is gradually increased.
As shown in fig. 4, in one embodiment, a slurry storage tank 400 may be provided at the slurry tank 100; the slurry outlet 120 on the slurry tank 100 can be connected to a slurry storage tank 400; the cooled slurry flows through the slurry outlet 120 into the slurry holding tank 400 for storage.
Through setting up thick liquid storage jar 400 and being used for the storage to cool off thick liquid, when needing to use the slurry that has cooled off, can directly take convenient and fast from thick liquid storage jar 400.
In one embodiment, as shown in fig. 4, a water flow storage tank 300 is further provided at the endmost slurry tank 100; connecting a water outlet 210 arranged on the extreme jacket layer 200 with a water storage tank 300 through a water transfer pipe; the heated water stream flows into the stream storage tank 300 for storage through the stream outlet 210.
The use of the heated water stream is facilitated by providing a water stream storage tank 300 for storing the heated water stream.
As shown in fig. 3, in one embodiment, valves 700 are disposed at the slurry inlet 110, the slurry outlet 120, the water inlet 220, and the water outlet 210; the flow direction of the slurry to be cooled in each slurry tank 100 is controlled by a valve 700; the flow direction of the water flow to be heated in each jacket layer 200 is controlled by a valve 700.
The valve 700 can be used to control the order of the flows of the slurry to be cooled and the water to be heated, and can also be used to determine the use of several slurry tanks 100.
In one embodiment, the water transport pipes are all steel pipes.
In one embodiment, the slurry tank is cylindrical in shape.
In one embodiment, the slurry tank is made of steel.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method of exchanging heat, the method comprising:
pouring the slurry to be cooled from a slurry inlet arranged at the top of the slurry tank, and simultaneously pouring the water flow to be heated from a water flow inlet arranged at the bottom of the jacket layer; the jacket layer is arranged outside the tank body of the slurry tank;
the slurry to be cooled moves from top to bottom in the slurry tank through the slurry inlet; the water flow to be heated moves from bottom to top in the jacket layer through the water flow inlet;
the flow direction of the water flow to be heated is opposite to the flow direction of the slurry to be cooled, and the slurry to be cooled exchanges heat with the water flow to be heated in the flow process to obtain cooled slurry and heated water flow;
the cooled slurry flows out from a slurry outlet arranged at the bottom of the slurry tank; the heated water flows out from a water outlet arranged at the top of the jacket layer.
2. The heat exchange method according to claim 1, wherein the slurry tank is provided in plurality; the method further comprises the following steps:
sequencing all the slurry tanks in parallel;
connecting the water flow outlet of the jacket layer with the water flow inlet of the adjacent jacket layer through a water flow transmission pipe;
the water flow to be heated flows into the water flow transmission pipe through the water flow outlet and then flows into the adjacent jacket layer through the water flow inlet of the adjacent jacket layer.
3. The heat exchange method according to claim 1, wherein a slurry storage tank is provided at the slurry tank; the method further comprises the following steps:
connecting the slurry outlet on the slurry tank with the slurry storage tank;
the cooled slurry flows through the slurry outlet into the slurry storage tank for storage.
4. The heat exchange method according to claim 2, wherein a water flow storage tank is further provided at the slurry tank arranged at the endmost; the method further comprises the following steps:
connecting the water outlet arranged on the extreme jacket layer with the water storage tank through the water conveying pipe;
the heated water stream flows into the water stream storage tank for storage through the water stream outlet.
5. The heat exchange method according to claim 2, wherein valves are provided at the slurry inlet, the slurry outlet, the water flow inlet, and the water flow outlet; the method further comprises the following steps:
controlling the flowing direction of the slurry to be cooled in each slurry tank through the valve;
the flowing direction of the water flow to be heated in each jacket layer is controlled by the valve.
6. The heat exchange method according to claim 2, wherein the water flow transmission pipes are all steel pipes.
7. The heat exchange method according to claim 1, wherein the slurry tank is cylindrical in shape.
8. The heat exchange method according to claim 1, wherein the slurry tank is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210884856.4A CN115265237A (en) | 2022-07-26 | 2022-07-26 | Heat exchange method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210884856.4A CN115265237A (en) | 2022-07-26 | 2022-07-26 | Heat exchange method |
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| CN115265237A true CN115265237A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210884856.4A Pending CN115265237A (en) | 2022-07-26 | 2022-07-26 | Heat exchange method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482479U (en) * | 2009-07-07 | 2010-05-26 | 龙岩卓越生物质材料发展有限公司 | Epoxy fatty acid methyl ester synthetic cooling device |
| JP2011038728A (en) * | 2009-08-12 | 2011-02-24 | Tlv Co Ltd | Heat exchanger |
| CN205146198U (en) * | 2015-11-04 | 2016-04-13 | 玉门油田科达化学有限责任公司 | Reation kettle heats cooling system |
| CN206262534U (en) * | 2016-10-28 | 2017-06-20 | 福建六九环保科技有限公司 | Lubricating oil preparation facilities |
-
2022
- 2022-07-26 CN CN202210884856.4A patent/CN115265237A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482479U (en) * | 2009-07-07 | 2010-05-26 | 龙岩卓越生物质材料发展有限公司 | Epoxy fatty acid methyl ester synthetic cooling device |
| JP2011038728A (en) * | 2009-08-12 | 2011-02-24 | Tlv Co Ltd | Heat exchanger |
| CN205146198U (en) * | 2015-11-04 | 2016-04-13 | 玉门油田科达化学有限责任公司 | Reation kettle heats cooling system |
| CN206262534U (en) * | 2016-10-28 | 2017-06-20 | 福建六九环保科技有限公司 | Lubricating oil preparation facilities |
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Application publication date: 20221101 |
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