CN207197349U - A kind of plate type heat exchanger with on-line cleaning mechanism - Google Patents
A kind of plate type heat exchanger with on-line cleaning mechanism Download PDFInfo
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- CN207197349U CN207197349U CN201721075608.6U CN201721075608U CN207197349U CN 207197349 U CN207197349 U CN 207197349U CN 201721075608 U CN201721075608 U CN 201721075608U CN 207197349 U CN207197349 U CN 207197349U
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- 238000004140 cleaning Methods 0.000 title abstract description 18
- 239000002253 acid Substances 0.000 abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 34
- 239000007788 liquid Substances 0.000 abstract description 17
- 238000001802 infusion Methods 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本实用新型公开了一种具有在线清洗机构的板式换热器，包括换热器本体、在线清洗机构，所述在线清洗机构包括输酸管、排酸管、输水管、排水管、输液管、排液管，所述输酸管一端与制酸系统的排液口连接，另一端通过第一阀门与所述换热器本体的进酸口连接，所述排酸管一端与所述换热器本体的出酸口连接，另一端与制酸系统的回液口连接，所述输水管一端与所述换热器本体的进水口连接，另一端通过第二阀门与冷却塔的出水管连接，所述排水管一端与所述换热器本体的回水口连接，另一端通过第三阀门与所述冷却塔的回水管连接，所述输液管一端通过第四阀门与所述输酸管连接，另一端与所述输水管连接，所述排液管一端通过第五阀门与所述排水管连接。
The utility model discloses a plate heat exchanger with an online cleaning mechanism, which comprises a heat exchanger body and an online cleaning mechanism. A liquid discharge pipe, one end of the acid delivery pipe is connected to the liquid discharge port of the acid making system, the other end is connected to the acid inlet port of the heat exchanger body through the first valve, and one end of the acid discharge pipe is connected to the heat exchange The acid outlet of the heat exchanger body is connected, the other end is connected with the liquid return port of the acid making system, one end of the water delivery pipe is connected with the water inlet of the heat exchanger body, and the other end is connected with the water outlet pipe of the cooling tower through the second valve , one end of the drain pipe is connected to the water return port of the heat exchanger body, the other end is connected to the return pipe of the cooling tower through the third valve, and one end of the liquid infusion pipe is connected to the acid delivery pipe through the fourth valve , the other end is connected to the water delivery pipe, and one end of the liquid discharge pipe is connected to the drain pipe through a fifth valve.
Description
技术领域technical field
本实用新型涉及化工设备技术领域，特别涉及一种具有在线清洗机构的板式换热器。The utility model relates to the technical field of chemical equipment, in particular to a plate heat exchanger with an online cleaning mechanism.
背景技术Background technique
在硫酸生产过程中，制酸系统常依赖板式换热器对系统进行降温除热，从而保证系统的稳定生产，板式换热器是由一系列具有一定波纹形状的金属片叠装而成的一种高效换热器，各种板片之间形成薄矩形通道，通过板片进行热量交换，具有换热效率高、热损失小、结构紧凑轻巧、占地面积小等特点。In the process of sulfuric acid production, the acid system often relies on the plate heat exchanger to cool down and remove heat from the system, so as to ensure the stable production of the system. The plate heat exchanger is a stack of metal sheets with a certain corrugated shape. A high-efficiency heat exchanger, in which thin rectangular channels are formed between various plates, and heat is exchanged through the plates. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, and small footprint.
目前应用最广的可拆卸板式换热器是由许多冲压有波纹薄板按一定间隔，四周通过垫片密封，并用框架和压紧螺旋重叠压紧而成，板片和垫片的四个角孔形成了流体的分配管和汇集管，同时又合理地将冷热流体分开，使其分别在每块板片两侧的流道中流动，通过板片进行热交换。At present, the most widely used detachable plate heat exchanger is made of many punched corrugated thin plates at a certain interval, sealed by gaskets around them, and overlapped and compressed with frames and compression screws. The four corner holes of the plates and gaskets The fluid distribution pipes and collection pipes are formed, and at the same time, the cold and hot fluids are reasonably separated, so that they flow in the flow channels on both sides of each plate, and exchange heat through the plates.
为节约用水，降低生产成本，在工业生产中，板式换热器大多使用循环水，由于循环水长期在生产系统内重复使用，水中含有大量杂质污垢，因此，在板式换热器长时间的运行过程中，会造成其内部结构结垢堵塞，影响换热效果，甚至会造成板片两侧压力不均衡，出现串液现象。In order to save water and reduce production costs, in industrial production, most plate heat exchangers use circulating water. Since the circulating water is repeatedly used in the production system for a long time, the water contains a lot of impurities and dirt. Therefore, the long-term operation of the plate heat exchanger During the process, the internal structure will be fouled and blocked, which will affect the heat exchange effect, and even cause the pressure on both sides of the plate to be unbalanced, resulting in liquid stringing.
为保证系统的稳定生产，需对板式换热器进行不定期的拆除、清理、更换密封垫，此种维护方式，不仅耗费大量的人力、物力，增加了酸水排量和新水用量，还降低了板式换热器的使用寿命。In order to ensure the stable production of the system, the plate heat exchanger needs to be dismantled, cleaned and replaced from time to time. This maintenance method not only consumes a lot of manpower and material resources, but also increases the amount of acid water discharge and new water consumption. The service life of the plate heat exchanger is reduced.
实用新型内容Utility model content
本实用新型针对上述已有维护技术存在的不足，提供一种投资小、环保、使用寿命长、节约成本的一种具有在线清洗机构的板式换热器。The utility model aims at the deficiencies of the above-mentioned existing maintenance technology, and provides a plate heat exchanger with an online cleaning mechanism with low investment, environmental protection, long service life and cost saving.
为了实现上述目的，本实用新型的技术方案具体如下：In order to achieve the above object, the technical scheme of the utility model is specifically as follows:
一种具有在线清洗机构的板式换热器，包括换热器本体、在线清洗机构，所述在线清洗机构包括输酸管、排酸管、输水管、排水管、输液管、排液管，所述输酸管一端与制酸系统的排液口连接，另一端通过第一阀门与所述换热器本体的进酸口连接，所述排酸管一端与所述换热器本体的出酸口连接，另一端与制酸系统的回液口连接，所述输水管一端与所述换热器本体的进水口连接，另一端通过第二阀门与冷却塔的出水管连接，所述排水管一端与所述换热器本体的回水口连接，另一端通过第三阀门与所述冷却塔的回水管连接，所述输液管一端通过第四阀门与所述输酸管连接，另一端与所述输水管连接，所述排液管一端通过第五阀门与所述排水管连接，另一端与所述排酸管连接。A plate heat exchanger with an online cleaning mechanism, including a heat exchanger body and an online cleaning mechanism. One end of the acid delivery pipe is connected to the liquid discharge port of the acid making system, the other end is connected to the acid inlet port of the heat exchanger body through the first valve, and one end of the acid discharge pipe is connected to the acid outlet port of the heat exchanger body. The other end is connected to the liquid return port of the acid making system. One end of the water delivery pipe is connected to the water inlet of the heat exchanger body, and the other end is connected to the outlet pipe of the cooling tower through the second valve. The drain pipe One end is connected to the return water port of the heat exchanger body, the other end is connected to the return water pipe of the cooling tower through the third valve, one end of the liquid infusion pipe is connected to the acid delivery pipe through the fourth valve, and the other end is connected to the water return pipe of the cooling tower. One end of the drain pipe is connected to the drain pipe through the fifth valve, and the other end is connected to the acid discharge pipe.
所述排酸管与所述换热器本体的出酸口连接处设置第六阀门。A sixth valve is provided at the connection between the acid discharge pipe and the acid outlet of the heat exchanger body.
所述输水管与所述换热器本体的进水口连接处设置第七阀门。A seventh valve is provided at the connection between the water delivery pipe and the water inlet of the heat exchanger body.
所述排水管与所述换热器本体的回水口连接处设置第八阀门。An eighth valve is arranged at the connection between the drain pipe and the water return port of the heat exchanger body.
所述输液管与所述输水管连接处设置第九阀门。A ninth valve is arranged at the connection between the infusion tube and the water delivery tube.
所述输液管上设置安装有阀门的第一放液管。A first discharge pipe equipped with a valve is arranged on the infusion pipe.
所述排液管与所述排酸管连接处设置第十阀门。A tenth valve is arranged at the joint between the liquid discharge pipe and the acid discharge pipe.
所述排液管上设置安装有阀门的第二放液管。A second discharge pipe with a valve is arranged on the discharge pipe.
本实用新型的有益效果是：本实用新型不需要对板式换热器进行拆卸，有效减少了密封垫的损耗，增加板式换热器的使用寿命，降低了板式换热器清洗费用，节约了更换密封垫的人工及材料费用，因清洗方便，可增加板式换热器的清洗频次，有效地缓解了水道、酸道因结垢积泥而无法发挥最大效能的问题，增大了板式换热器的换热面积，保证系统稳定生产。The beneficial effects of the utility model are: the utility model does not need to disassemble the plate heat exchanger, which effectively reduces the loss of the sealing gasket, increases the service life of the plate heat exchanger, reduces the cleaning cost of the plate heat exchanger, and saves replacement costs. The labor and material costs of the gasket are easy to clean, which can increase the cleaning frequency of the plate heat exchanger, effectively alleviating the problem that the water channel and acid channel cannot exert their maximum performance due to fouling and mud, and increasing the cost of the plate heat exchanger. The heat exchange area ensures the stable production of the system.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is a structural representation of the utility model.
其中，1.换热器本体，2.输酸管，3.排酸管，4.输水管，5.排水管，6.输液管，7.排液管，8.第一阀门，9.第二阀门，10.第三阀门，11.第四阀门，12.第五阀门，13.第六阀门，14.第七阀门，15.第八阀门，16.第九阀门，17.安装有阀门的第一放液管，18.第十阀门，19.安装有阀门的第二放液管。Among them, 1. Heat exchanger body, 2. Acid delivery pipe, 3. Acid discharge pipe, 4. Water delivery pipe, 5. Drainage pipe, 6. Infusion pipe, 7. Drainage pipe, 8. First valve, 9. The second valve, 10. the third valve, 11. the fourth valve, 12. the fifth valve, 13. the sixth valve, 14. the seventh valve, 15. the eighth valve, 16. the ninth valve, 17. installed The first liquid discharge pipe of valve, 18. the tenth valve, 19. the second liquid discharge pipe that valve is installed.
具体实施方式Detailed ways
如图1所示，一种具有在线清洗机构的板式换热器，包括换热器本体1、在线清洗机构，在线清洗机构包括输酸管2、排酸管3、输水管4、排水管5、输液管6、排液管7，输酸管2一端与制酸系统的排液口连接，另一端通过第一阀门8与换热器本体1的进酸口连接，排酸管3一端通过第六阀门13与换热器本体1的出酸口连接，另一端与制酸系统的回液口连接，输水管4一端通过第七阀门14与换热器本体1的进水口连接，另一端通过第二阀门9与冷却塔的出水管连接，排水管5一端通过第八阀门15与换热器本体1的回水口连接，另一端通过第三阀门10与冷却塔的回水管连接，输液管6一端通过第四阀门11与输酸管2连接，另一端通过第九阀门16与输水管4连接，输液管上设置安装有阀门的第一放液管17，所述排液管7一端通过第五阀门12与所述排水管5连接，另一端通过第十阀门18与所述排酸管3连接，排液管上设置安装有阀门的第二放液管19。As shown in Figure 1, a plate heat exchanger with an online cleaning mechanism includes a heat exchanger body 1 and an online cleaning mechanism. The online cleaning mechanism includes an acid delivery pipe 2, an acid discharge pipe 3, a water delivery pipe 4, and a drainage pipe 5 , infusion pipe 6, liquid discharge pipe 7, one end of the acid delivery pipe 2 is connected to the liquid outlet of the acid system, the other end is connected to the acid inlet of the heat exchanger body 1 through the first valve 8, and one end of the acid discharge pipe 3 passes through The sixth valve 13 is connected to the acid outlet of the heat exchanger body 1, and the other end is connected to the liquid return port of the acid making system. One end of the water delivery pipe 4 is connected to the water inlet of the heat exchanger body 1 through the seventh valve 14, and the other end is Connect the outlet pipe of the cooling tower through the second valve 9, one end of the drain pipe 5 is connected to the water return port of the heat exchanger body 1 through the eighth valve 15, and the other end is connected to the return pipe of the cooling tower through the third valve 10, and the infusion pipe 6. One end is connected to the acid delivery pipe 2 through the fourth valve 11, and the other end is connected to the water delivery pipe 4 through the ninth valve 16. The first discharge pipe 17 equipped with a valve is arranged on the infusion pipe, and one end of the discharge pipe 7 passes through The fifth valve 12 is connected to the drain pipe 5, and the other end is connected to the acid discharge pipe 3 through the tenth valve 18, and a second discharge pipe 19 equipped with a valve is arranged on the discharge pipe.
本实用新型在使用时，当对板式换热器水道进行在线清洗时，关闭第一阀门8、第六阀门13、第二阀门9、第三阀门10，打开第四阀门11、第十阀门18、第九阀门16、第五阀门12，稀酸由输酸管2进入输液管6中，通过输液管6进入输水管4，通过输水管4进入换热器本体1的水道，酸液与水道中的结垢（CaCO3、Mg(OH)2）发生化学反应，从而达到除垢的目的，反应完的酸水经排水管5进入排液管7，通过排酸管3回塔。When the utility model is in use, when the water channel of the plate heat exchanger is cleaned online, the first valve 8, the sixth valve 13, the second valve 9, and the third valve 10 are closed, and the fourth valve 11 and the tenth valve 18 are opened. , the ninth valve 16, and the fifth valve 12, dilute acid enters the infusion pipe 6 from the acid delivery pipe 2, enters the water delivery pipe 4 through the infusion pipe 6, and enters the water channel of the heat exchanger body 1 through the water delivery pipe 4, and the acid liquid and the water channel The scaling (CaCO 3 , Mg(OH) 2 ) in the tank undergoes a chemical reaction to achieve the purpose of descaling. After the reaction, the acid water enters the drain pipe 7 through the drain pipe 5, and returns to the tower through the acid discharge pipe 3.
水道清洗完后，再对板式换热器酸道进行在线清洗，关闭第七阀门14、第八阀门15、第三阀门10、第五阀门12、第十阀门18,打开第二阀门9、第四阀门11、第九阀门16、第一阀门8、第六阀门13，让循环水由输水管4进入输液管6，再从输液管6进入输酸管2，通过输酸管2进入板式换热器酸道，通过对酸道的冲洗来完成板片上积泥的清洗工作，清洗后的水继续通过排酸管3回塔循环利用。After the water channel is cleaned, the acid channel of the plate heat exchanger is cleaned online, the seventh valve 14, the eighth valve 15, the third valve 10, the fifth valve 12, and the tenth valve 18 are closed, and the second valve 9 and the The four valves 11, the ninth valve 16, the first valve 8, and the sixth valve 13 let the circulating water enter the infusion pipe 6 from the water pipe 4, then enter the acid pipe 2 from the infusion pipe 6, and enter the plate exchange through the acid pipe 2. The acid channel of the heater completes the cleaning of the mud accumulated on the plates by flushing the acid channel, and the cleaned water continues to be recycled through the acid discharge pipe 3 times back to the tower.
全部清洗工作结束后，关闭第四阀门11、第五阀门12、第九阀门16、第十阀门18，并打开安装有阀门的第一放液管17、安装有阀门的第二放液管19，排尽管道内残留的液体。After all the cleaning work is finished, close the fourth valve 11, the fifth valve 12, the ninth valve 16, and the tenth valve 18, and open the first discharge pipe 17 with the valve and the second discharge pipe 19 with the valve. , to expel the remaining liquid in the channel.
整个清洗过程，只需人工调节阀门，所有酸水均可回用至系统，降低了酸水排放量，节约了新水，起到环保、节能的作用，因为不需要对板式换热器进行拆卸，有效减少了密封垫的损耗，增加板式换热器的使用寿命，降低了板式换热器清洗费用，节约了更换密封垫的成本费用，节约人力，因清洗方便，可增大板式换热器的清洗频次，有效地防止水道酸道因结垢积泥而起不到最佳的效果，增大了板式换热器的换热面积，保证系统稳定生产。During the whole cleaning process, only the valve needs to be manually adjusted, and all the acid water can be reused in the system, which reduces the discharge of acid water, saves fresh water, and plays the role of environmental protection and energy saving, because there is no need to disassemble the plate heat exchanger , effectively reduces the loss of the gasket, increases the service life of the plate heat exchanger, reduces the cleaning cost of the plate heat exchanger, saves the cost of replacing the gasket, and saves manpower. Because of the convenient cleaning, the plate heat exchanger can be enlarged The frequency of cleaning can effectively prevent the waterway acid channel from not achieving the best effect due to fouling and mud accumulation, and increase the heat exchange area of the plate heat exchanger to ensure the stable production of the system.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721075608.6U CN207197349U (en) | 2017-08-25 | 2017-08-25 | A kind of plate type heat exchanger with on-line cleaning mechanism |
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| CN201721075608.6U CN207197349U (en) | 2017-08-25 | 2017-08-25 | A kind of plate type heat exchanger with on-line cleaning mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797839A (en) * | 2020-12-30 | 2021-05-14 | 卢龙县双益磷化有限责任公司 | Cleaning-free system of sulfuric acid purification plate type heat exchanger and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797839A (en) * | 2020-12-30 | 2021-05-14 | 卢龙县双益磷化有限责任公司 | Cleaning-free system of sulfuric acid purification plate type heat exchanger and use method |
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Address after: No. 31 Beijing Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province 737100 Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee before: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region before: China |