Cooler on-line cleaning device

Abstract

The cooler online cleaning device comprises an alkali liquor cleaning tank, an alkali liquor cleaning pipeline is arranged on one side of the alkali liquor cleaning tank, an alkali liquor cleaning pump is arranged on the alkali liquor cleaning pipeline, one end of the alkali liquor cleaning pipeline is connected into a cooler pipeline, the cooler pipeline is communicated with a first cooler and a second cooler, and the first cooler is communicated with the second cooler. One side of the cooler pipeline is connected into an alkali liquor backflow pipeline, and the alkali liquor backflow pipeline is connected into an alkali liquor cleaning tank. The device can sequentially and circularly clean and strip a catalyst adsorbed on a cooler tube bundle in a reciprocating manner to achieve the purpose of improving the heat efficiency, and can quickly and accurately monitor and prompt the concentration of a cleaning solution, efficiently and conveniently mix the solution, prolong the service life and improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of chemical production, in particular to an on-line cleaning device for a cooler. Background Technique

[0002] In the process of methanol to olefins in the DMTO device, product gas and a large amount of water are generated by reaction. The by-product water is recycled for washing, cooled by a cooler, and sent to a downstream water treatment plant for treatment after reaching the discharge temperature. The by-product water contains a large amount of lost catalysts after recycling. When passing through the cooler, it will adhere to the heat exchanger tube bundle, reducing the heat exchange efficiency of the cooler, causing the temperature of the discharged water to rise and unable to meet the external delivery requirements. Moreover, the operation cycle of the cooler is short, the frequency of manual off-line maintenance is high, the maintenance time is long, which is prone to safety hazards and affects the overall stable production of the device; and the solution inside the used cleaning tank cannot be circulated and cleaned and intelligently monitored, the concentration of the cleaning solution cannot be monitored in real time, and when the solvent and water are mixed inside the cleaning tank, the mixing will be uneven.

[0003] Therefore, there is an urgent need for an on-line cleaning device for a cooler, which can clean in a reciprocating cycle in sequence, peel off the catalysts adsorbed on the cooler tube bundle, achieve the purpose of improving the thermal efficiency, and can quickly and accurately monitor and prompt the concentration of the cleaning solution, efficiently and conveniently mix the solution, increase the service life, and improve the production efficiency. Summary of the Invention

[0004] An on-line cleaning device for a cooler can clean in a reciprocating cycle in sequence, peel off the catalysts adsorbed on the cooler tube bundle, achieve the purpose of improving the thermal efficiency, and can quickly and accurately monitor and prompt the concentration of the cleaning solution, efficiently and conveniently mix the solution, increase the service life, and improve the production efficiency.

[0005] An on-line cleaning device for a cooler includes an alkali solution cleaning tank, wherein:

[0006] An alkali solution cleaning pipe is arranged on one side of the alkali solution cleaning tank, an alkali solution cleaning pump is arranged on the alkali solution cleaning pipe, one end of the alkali solution cleaning pipe is connected to a cooler pipe, the cooler pipe is connected to a first cooler and a second cooler, an alkali solution return pipe is connected to one side of the cooler pipe, and the alkali solution return pipe is connected to the alkali solution cleaning tank.

[0007] Preferably, a fixed baffle is arranged in the alkali solution cleaning tank, a water outlet is arranged at the bottom of the fixed baffle, a filter box is detachably assembled on one side of the alkali solution cleaning tank, a water purification tank is arranged on the other side of the alkali solution cleaning tank, a fixed frame is arranged outside the water purification tank, the motor end of a plastic-lined stirrer is assembled on the fixed frame, the stirring end of the plastic-lined stirrer extends into the water purification tank, an alkali solution concentration measuring instrument is arranged in the water purification tank, a flow outlet of the alkali solution cleaning liquid is arranged at the bottom of the water purification tank, and the flow outlet of the alkali solution cleaning liquid is connected to the alkali solution cleaning pipe.

[0008] Preferably, a movable baffle is provided on one side of the water outlet close to the water purification tank. Rebound springs are provided on both sides of the movable baffle, and the other ends of the rebound springs are connected to the fixed baffle.

[0009] Preferably, the length and width of the movable baffle are both larger than the water outlet.

[0010] Preferably, a number of control valves are provided on the caustic soda cleaning pipeline, the cooler pipeline and the caustic soda return pipeline.

[0011] Preferably, a filter layer is provided at the bottom of the filter box, a stainless steel filter screen is provided below the filter layer, and a portable handle is provided at the top of the filter box.

[0012] Preferably, a cleaning port is provided on one side of the bottom of the water purification tank.

[0013] Preferably, a flow meter is provided on the caustic soda cleaning pipeline.

[0014] Preferably, a buckle is provided at the top of the filter box, and the buckle is assembled with the outer edge slot at the top of the caustic soda cleaning tank.

[0015] The beneficial effects of the present utility model: The on-line cooler cleaning device of the present utility model can clean the cooler during operation, avoiding downtime and improving production efficiency. The structural design of the device is convenient for operation, with a detachable filter box and a direct sewage discharge design, facilitating subsequent maintenance and cleaning. The caustic soda concentration measuring instrument is equipped with a signal transmission module, enabling real-time monitoring of the cleaning situation to ensure the cleaning quality. By recycling the cleaning liquid, the maximum utilization of resources is achieved, reducing waste during the cleaning process and meeting environmental protection requirements. The materials and design adopted reduce the leakage risk during the cleaning process, increase the safety of the operation, extend the service life of the equipment, reduce the cost of equipment maintenance and replacement, and greatly enhance its practical value. Description of the Drawings

[0016] Figure 1 Schematic diagram of an on-line cooler cleaning device of the present utility model;

[0017] Figure 2 Schematic diagram of the caustic soda cleaning tank of an on-line cooler cleaning device of the present utility model;

[0018] Figure 3 Schematic diagram of the fixed baffle of an on-line cooler cleaning device of the present utility model.

[0019] In the figure: caustic solution cleaning tank 1, caustic solution cleaning pipeline 2, caustic solution cleaning pump 3, cooler pipeline 4, first cooler 5, second cooler 6, caustic solution reflux pipeline 7, flowmeter 8, fixed baffle 101, water outlet 102, filter tank 103, filter layer 103-1, stainless steel filter screen 103-2, buckle 103-3, clean water tank 104, plastic-lined stirrer 105, caustic solution concentration measuring instrument 106, caustic solution cleaning liquid outlet 107, movable baffle 108, return spring 109, flowmeter 8, cleaning port 110, fixed bracket 111. Detailed implementation mode

[0020] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model will be clearly and completely described by way of specific embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] As Figures 1 - 3 shown, the Figures 1 - 3 online cooler cleaning device of the present utility model in this embodiment includes a caustic solution cleaning tank 1, wherein:

[0023] One side of the caustic solution cleaning tank 1 is provided with a caustic solution cleaning pipeline 2, the caustic solution cleaning pipeline 2 is provided with a caustic solution cleaning pump 3, one end of the caustic solution cleaning pipeline 2 is connected to the cooler pipeline 4, the cooler pipeline 4 communicates with the first cooler 5 and the second cooler 6, one side of the cooler pipeline 4 is connected to the caustic solution reflux pipeline 7, and the caustic solution reflux pipeline 7 is connected to the caustic solution cleaning tank 1.

[0024] A fixed baffle 101 is arranged in the caustic solution cleaning tank 1, a water outlet 102 is arranged at the bottom of the fixed baffle 101, a filter tank 103 is detachably assembled on one side of the caustic solution cleaning tank 1, the other side of the caustic solution cleaning tank 1 is a clean water tank 104, a fixed bracket 111 is arranged outside the clean water tank 104, the motor end of the plastic-lined stirrer 105 is assembled on the fixed bracket 111, the stirring end of the plastic-lined stirrer 105 extends into the clean water tank 104, a caustic solution concentration measuring instrument 106 is arranged in the clean water tank 104, a caustic solution cleaning liquid outlet 107 is arranged at the bottom of the clean water tank 104, and the caustic solution cleaning liquid outlet 107 is connected to the caustic solution cleaning pipeline 2.

[0025] A movable baffle 108 is arranged on one side of the water outlet 102 close to the clean water tank 104, return springs 109 are arranged on both sides of the movable baffle 108, and the other ends of the return springs 109 are connected to the fixed baffle 101.

[0026] The length and width of the movable baffle 108 are both larger than those of the water outlet 102.

[0027] A number of control valves are arranged on the caustic solution cleaning pipeline 2, the cooler pipeline 4 and the caustic solution reflux pipeline 7.

[0028] A filter layer 103-1 is provided at the bottom of the filter box 103, and a stainless steel filter screen 103-2 is provided below the filter layer 103-1. A portable handle is provided at the top of the filter box 103.

[0029] A cleaning port 110 is provided on one side of the bottom of the water purification tank 104.

[0030] A flow meter 8 is provided on the caustic soda cleaning pipeline 2.

[0031] A buckle 103-3 is provided at the top of the filter box 103, and the buckle 103-3 is fitted with the card slot on the outer edge of the top of the caustic soda cleaning tank 1.

[0032] During the use of this device, first, water is added to the water purification tank on one side of the caustic soda cleaning tank 1 and caustic soda flakes are put into the water purification tank 104. Then, the plastic-lined stirrer 105 is turned on for stirring to make the solution more evenly stirred and accelerate the melting speed. Observe the indication of the caustic soda concentration measuring instrument 106. After reaching the concentration of the cleaning solution, open the valve on the caustic soda cleaning pipeline 2 and start the caustic soda cleaning pump 3 for cleaning activities; when the first cooler 5 and the second cooler 6 are cleaned, the dirty water washed out will enter the filter box 103 in the caustic soda cleaning tank 1 through the caustic soda return pipeline 7. After the dirty water is filtered through the filter layer 103-1, it is filtered a second time through the stainless steel filter screen 103-2. Then, the clean solution will flow into the water purification tank 104 through the water outlet 102 on the fixed baffle 101;

[0033] When the concentration of the caustic soda solution in the water purification tank 104 drops to the preset threshold value, the caustic soda concentration measuring instrument 106 will issue an alarm to remind the staff to add materials; the movable baffle 108 on the water outlet 102 is located on one side of the water purification tank 104. Since the length and width of the movable baffle 108 are both larger than the water outlet 102 and a return spring 109 is provided on the movable baffle 108, when the caustic soda solution in the water purification tank 104 is less, the filtered water will automatically flow into the water purification tank 104. When the caustic soda solution in the water purification tank 104 reaches a certain amount, the movable baffle 108 is closed under the hydraulic action, which can prevent the solution in the water purification tank 104 from flowing back into the filter box 103.

[0034] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementation manners of the present invention. The embodiments are only exemplary, and their functions are only to provide a more intuitive and clear way to understand the content of the present invention, rather than a limitation on the technical solutions of the present invention. Without departing from the concept of the present invention, all other implementation manners that can be thought of by those of ordinary skill in the art without creative labor, as well as other simple replacements and various changes to the technical solutions of the present invention, all fall within the protection scope of the present invention.

Claims

1. An on-line cleaning device for a cooler, characterized in that, Comprising an alkaline solution cleaning tank (1), wherein: One side of the alkaline solution cleaning tank (1) is provided with an alkaline solution cleaning pipeline (2), an alkaline solution cleaning pump (3) is arranged on the alkaline solution cleaning pipeline (2), one end of the alkaline solution cleaning pipeline (2) is connected to a cooler pipeline (4), the cooler pipeline (4) communicates with a first cooler (5) and a second cooler (6), one side of the cooler pipeline (4) is connected to an alkaline solution reflux pipeline (7), and the alkaline solution reflux pipeline (7) is connected to the alkaline solution cleaning tank (1).

2. The on-line cleaning device for a cooler according to claim 1, characterized in that, A fixed baffle (101) is arranged in the alkaline solution cleaning tank (1), a water outlet (102) is arranged at the bottom of the fixed baffle (101), a filter box (103) is detachably assembled on one side of the alkaline solution cleaning tank (1), the other side of the alkaline solution cleaning tank (1) is a water purification tank (104), a fixed frame (111) is arranged outside the water purification tank (104), the motor end of a plastic-lined stirrer (105) is assembled on the fixed frame (111), the stirring end of the plastic-lined stirrer (105) extends into the water purification tank (104), an alkaline solution concentration measuring instrument (106) is arranged in the water purification tank (104), a flow outlet (107) for the alkaline solution cleaning liquid is arranged at the bottom of the water purification tank (104), and the flow outlet (107) for the alkaline solution cleaning liquid is connected to the alkaline solution cleaning pipeline (2).

3. The on-line cleaning device for a cooler according to claim 2, characterized in that, An activity baffle (108) is arranged on one side of the water outlet (102) close to the water purification tank (104), return springs (109) are arranged on both sides of the activity baffle (108), and the other ends of the return springs (109) are connected to the fixed baffle (101).

4. The on-line cleaning device for a cooler according to claim 3, characterized in that, The length and width of the activity baffle (108) are both larger than those of the water outlet (102).

5. The on-line cleaning device for a cooler according to claim 1, wherein, A number of control valves are arranged on the alkaline solution cleaning pipeline (2), the cooler pipeline (4) and the alkaline solution reflux pipeline (7).

6. The on-line cleaning device for a cooler according to claim 2, wherein, A filter layer (103-1) is arranged at the bottom of the filter box (103), a stainless steel filter screen (103-2) is arranged below the filter layer (103-1), and a portable handle is arranged at the top of the filter box (103).

7. The on-line cleaning device for a cooler according to claim 2, characterized in that A cleaning port (110) is arranged at one side of the bottom of the water purification tank (104).

8. The on-line cleaning device for a cooler according to claim 1, characterized in that, A flow meter (8) is arranged on the alkaline solution cleaning pipeline (2).

9. The on-line cleaning device for a cooler according to claim 2, characterized in that, A buckle (103-3) is arranged at the top of the filter box (103), and the buckle (103-3) is assembled with the clamping groove on the outer edge of the top of the alkaline solution cleaning tank (1).

Images