Anti-fouling circulating liquid cooler

Abstract

The utility model discloses a kind of anti-fouling circulating liquid coolers, belong to circulating liquid cooler technical field.It include cooler body and desalted water storage tank;Cooler body is connected with desalted water storage tank;Separation part, connect on cooler body;The utility model passes through using desalted water as direct cooling medium, its calcium, magnesium, sodium and other metal ion content is extremely low, and the temperature difference of desalted water temperature and circulating liquid temperature entering cooler body is less than traditional circulating water system, to reduce the risk of fouling inside cooler, reduce equipment maintenance frequency, prolong the service life of circulating liquid cooler;Simultaneously realize gas-liquid separation by separation part, steam generated by high-temperature desalted water after heat exchange is recycled as device heat tracing heat source by steam pipe, unvaporized high-temperature condensate is directly utilized or backflow by circulating pipe through hot water recovery pipe, effectively avoid the energy waste of waste heat direct discharge in traditional circulating water system, improve the energy saving in production process.

Description

Technical Field

[0001] This utility model relates to the field of circulating liquid cooler technology, and in particular to an anti-scaling circulating liquid cooler. Background Technology

[0002] The BDO hydrogenation unit is a key unit that produces 1,4-butynediol by reacting hydrogen with 1,4-butynediol under catalytic, high temperature and high pressure conditions. Since this reaction is exothermic, the catalyst bed temperature will continue to rise. Therefore, the temperature needs to be controlled by the circulating liquid cooling system of the primary reactor. The circulating liquid cooler reduces the temperature of the circulating liquid by heat exchange between the circulating water and the circulating liquid, thereby maintaining the stability of the reactor bed temperature.

[0003] However, existing circulating liquid coolers still have certain shortcomings in actual use: after heat exchange between circulating water and circulating liquid, the return water temperature can reach 80℃-150℃, which is too large a temperature difference with the incoming water temperature. In addition, the circulating water quality is poor, which may cause scale to easily form inside the cooler, shorten the service life of the equipment, and increase the frequency and cost of maintenance. Furthermore, the high-temperature circulating return water in the existing technology is directly returned to the circulating water device without heat recovery, which may cause a large amount of heat loss, and the energy-saving effect needs to be further improved. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose an anti-scaling circulating liquid cooler.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A scale-resistant circulating fluid cooler, comprising:

[0007] Cooler body and demineralized water storage tank;

[0008] The cooler body is connected to the demineralized water storage tank;

[0009] The separation section is connected to the cooler body, and a steam pipe is fixedly connected to the steam discharge port of the separation section. A hot water recovery pipe is fixedly connected to the condensate discharge port of the separation section. A circulation pipe is also connected to the hot water recovery pipe, and the circulation pipe is connected to the demineralized water storage tank.

[0010] Preferably, the system further includes a transfer pump, a suction pipe fixedly connected to the suction end of the transfer pump, and the end of the suction pipe away from the transfer pump being connected to the demineralized water storage tank; a delivery pipe fixedly connected to the discharge end of the transfer pump, and the end of the delivery pipe away from the transfer pump being connected to the cooler body.

[0011] Preferably, a jacket is provided on the side wall of the demineralized water storage tank, and an inlet water pipe and a return water pipe are fixedly connected to the side wall of the demineralized water storage tank, both of which are connected to the jacket.

[0012] Preferably, a water supply pipe is fixedly connected to the top of the desalinated water storage tank.

[0013] Preferably, the separation section is a liquid collection bag.

[0014] Compared with the prior art, this utility model provides an anti-scaling circulating liquid cooler, which has the following beneficial effects:

[0015] 1. This utility model uses demineralized water as the direct cooling medium, which has extremely low content of metal ions such as calcium, magnesium, and sodium. The temperature difference between the demineralized water entering the cooler body and the circulating liquid is smaller than that in traditional circulating water systems, thereby reducing the risk of scaling inside the cooler, lowering the frequency of equipment maintenance, and extending the service life of the circulating liquid cooler. At the same time, gas-liquid separation is achieved through the separation section. The steam generated by the high-temperature demineralized water after heat exchange is recovered through the steam pipe as a heat source for the device. The unvaporized high-temperature condensate is directly utilized through the hot water recovery pipe or returned through the circulation pipe, effectively avoiding the energy waste of direct discharge of waste heat in traditional circulating water systems and improving the energy efficiency of the production process. Attached Figure Description

[0016] Figure 1 This invention provides a structural schematic diagram of an anti-scaling circulating liquid cooler. Figure 1 ;

[0017] Figure 2 This invention provides a structural schematic diagram of an anti-scaling circulating liquid cooler. Figure 2 .

[0018] In the diagram: 1. Cooler body; 2. Transfer pump; 201. Infusion pipe; 202. Extraction pipe; 3. Separation section; 301. Hot water recovery pipe; 302. Steam pipe; 4. Demineralized water storage tank; 401. Water supply pipe; 402. Circulation pipe; 403. Water inlet pipe; 404. Water return pipe; 405. Jacket. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1:

[0021] Reference Figures 1-2 A scale-resistant circulating liquid cooler, comprising:

[0022] Cooler body 1 and demineralized water storage tank 4;

[0023] The cooler body 1 is connected to the demineralized water storage tank 4;

[0024] Separation section 3 is connected to cooler body 1, and steam pipe 302 is fixedly connected to steam discharge port of separation section 3. Hot water recovery pipe 301 is fixedly connected to condensate discharge port of separation section 3. Circulation pipe 402 is also connected to hot water recovery pipe 301 and is connected to demineralized water storage tank 4.

[0025] It also includes a transfer pump 2, on which a liquid extraction pipe 202 is fixedly connected, and the end of the liquid extraction pipe 202 away from the transfer pump 2 is connected to the demineralized water storage tank 4; and a liquid delivery pipe 201 is fixedly connected to the liquid outlet of the transfer pump 2, and the end of the liquid delivery pipe 201 away from the transfer pump 2 is connected to the cooler body 1.

[0026] A jacket 405 is provided on the side wall of the demineralized water storage tank 4. An inlet water pipe 403 and a return water pipe 404 are also fixedly connected to the side wall of the demineralized water storage tank 4. Both the inlet water pipe 403 and the return water pipe 404 are connected to the jacket 405.

[0027] A water supply pipe 401 is fixedly connected to the top of the desalinated water storage tank 4.

[0028] It should be noted that both the inlet water pipe 403 and the return water pipe 404 are equipped with commercially available solenoid valves.

[0029] Separation section 3 is a liquid accumulation bag.

[0030] Reference Figures 1-2 Before use, staff replenish the demineralized water storage tank 4 with demineralized water through water supply pipe 401 to ensure that the demineralized water level in the tank meets the circulation requirements; then connect the water supply pipe 403 and the water return pipe 404 to the external circulating water system.

[0031] In practice, the liquid level can be observed through the liquid level observation window on the demineralized water storage tank 4.

[0032] The circulating water is input through the water inlet pipe 403, flows through the jacket 405, and is discharged from the water return pipe 404. During the flow of the circulating water, the circulating water will exchange heat with the demineralized water in the demineralized water storage tank 4.

[0033] Reference Figures 1-2When in use, the transfer pump 2 is started, and the transfer pump 2 draws demineralized water from the demineralized water storage tank 4 through the extraction pipe 202 and delivers it to the cooler body 1 through the delivery pipe 201. The demineralized water undergoes heat exchange in the circulating liquid after the hydrogenation reaction in the cooler body 1, absorbing the heat of the circulating liquid and lowering the temperature of the circulating liquid, while the temperature of the demineralized water itself rises. The high-temperature demineralized water after heat exchange flows back to the demineralized water storage tank 4 for recycling.

[0034] Meanwhile, since the cooler body 1 is also connected to the separation section 3, the demineralized water after heat exchange will enter the separation section 3 and achieve gas-liquid separation through the separation section 3; the vaporized steam is discharged through the steam outlet and steam pipe 302, which can be used as a heat source for equipment heating and other purposes; the unvaporized high-temperature condensate is discharged through the condensate outlet and hot water recovery pipe 301, some of the hot water can be directly recycled, and the other part is returned to the demineralized water storage tank 4 through the circulation pipe 402 to realize the recycling of demineralized water.

[0035] In practice, because the content of metal ions such as calcium, magnesium, and sodium in the demineralized water is low, and the temperature difference between the demineralized water entering the cooler body 1 and the circulating liquid is smaller than that in the traditional circulating water system, the risk of scaling inside the cooler body 1 is reduced, and the service life of the equipment is extended. At the same time, the recovery and utilization of steam and hot water reduces the energy loss from the direct discharge of waste heat in the traditional circulating water system, thus achieving the goal of energy saving.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A scale-preventing type circulating liquid cooler characterized by comprising: include: Cooler body (1) and demineralized water storage tank (4); The cooler body (1) is connected to the demineralized water storage tank (4); The separation section (3) is connected to the cooler body (1), and a steam pipe (302) is fixedly connected to the steam discharge port of the separation section (3). A hot water recovery pipe (301) is fixedly connected to the condensate discharge port of the separation section (3). A circulation pipe (402) is also connected to the hot water recovery pipe (301). The circulation pipe (402) is connected to the demineralized water storage tank (4).

2. The anti-scaling circulating liquid cooler according to claim 1, characterized in that, It also includes a transfer pump (2), on which a liquid extraction pipe (202) is fixedly connected, and the end of the liquid extraction pipe (202) away from the transfer pump (2) is connected to the demineralized water storage tank (4); and a liquid delivery pipe (201) is fixedly connected to the liquid outlet of the transfer pump (2), and the end of the liquid delivery pipe (201) away from the transfer pump (2) is connected to the cooler body (1).

3. The anti-scaling circulating liquid cooler according to claim 1, characterized in that, The demineralized water storage tank (4) is provided with a jacket (405) on its side wall. A water inlet pipe (403) and a water return pipe (404) are also fixedly connected to the side wall of the demineralized water storage tank (4). The water inlet pipe (403) and the water return pipe (404) are both connected to the jacket (405).

4. The anti-scaling circulating liquid cooler according to claim 1, characterized in that, A water supply pipe (401) is fixedly connected to the top of the desalinated water storage tank (4).

5. The anti-scaling circulating liquid cooler according to claim 1, characterized in that, The separation section (3) is a liquid collection bag.

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