Online filtering device for heat exchange cooler

Abstract

The utility model relates to the technical field of heat exchanger treatment, in particular to an online filtering device for a heat exchange cooler, which comprises a heat exchanger and a four-way valve, a first inlet of the four-way valve is fixedly communicated with a first circulating cooling water inlet pipeline, and a second circulating cooling water inlet pipeline is fixedly communicated between a first outlet of the four-way valve and an inlet of the heat exchanger. The device is reasonable and compact in structure and convenient to use, the filter is arranged on the second circulating cooling water inlet pipeline of the heat exchanger, impurities in an existing circulating cooling water device are effectively filtered, the cleanliness of circulating cooling water is improved, the impurities in the heat exchanger are reduced, the heat exchange efficiency of the heat exchanger is improved, and the continuous operation time of the device is prolonged. The problems of device production halt and production reduction caused by the scaling problem of the heat exchanger in the BDO production process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger treatment, and is an on-line filtering device for a heat exchange cooler. Background Art

[0002] The circulating cooling system is a basic process in chemical production. The 32°C circulating water system is used as a cooling medium in the production of 1,4-butanediol (BDO) to remove the reaction heat and effectively control the operating temperature of the device within the design range. However, during the process operation, due to the flow scouring of the pipeline medium and the process treatment of the circulating water system itself, impurities such as silt are likely to accumulate in the circulating water pipeline, resulting in fouling of the heat exchanger, a decrease in the heat exchange effect, and the inability to meet the requirements of continuous and stable operation of the process.

[0003] Currently, the treatment of the heat exchanger structure basically depends on chemical cleaning or high-pressure physical cleaning. However, no matter which of the above methods is used, it is necessary to shut down the circulating water cooling device for treatment, reducing the operating time of the circulating water cooling device, affecting the production capacity of the normal BOD process, and increasing the labor cost. Summary of the Invention

[0004] The utility model provides an on-line filtering device for a heat exchange cooler, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problem that the entire device stops production or reduces production due to fouling of the heat exchanger in the BDO production device.

[0005] The technical solution of the utility model is realized by the following measures: an on-line filtering device for a heat exchange cooler includes a heat exchanger and a four-way valve. The first inlet of the four-way valve is fixedly connected to a first circulating cooling water inlet pipeline. A second circulating cooling water inlet pipeline is fixedly connected between the first outlet of the four-way valve and the inlet of the heat exchanger. The outlet of the heat exchanger is fixedly connected to a circulating cooling water outlet pipeline. A first treatment pipeline is fixedly connected between the second outlet of the four-way valve and the circulating cooling water outlet pipeline. A filter is fixedly installed on the second circulating cooling water inlet pipeline.

[0006] The following is a further optimization and / or improvement of the above technical solution of the utility model:

[0007] A spare circulating cooling water inlet pipeline is fixedly connected between the third outlet of the four-way valve and the second circulating cooling water inlet pipeline between the filter and the heat exchanger. A spare filter is fixedly installed on the spare circulating cooling water inlet pipeline.

[0008] Bypass pipelines are fixedly connected to the spare circulating cooling water inlet pipeline on the left and right sides corresponding to the spare filter.

[0009] Both the filter and the spare filter are basket filters with a mesh number of 100 meshes.

[0010] A safety valve, a temperature display, and a temperature regulating valve are successively and fixedly installed on the circulating cooling water outlet pipeline between the heat exchanger and the first treatment pipeline.

[0011] Valves are fixedly installed on the above-mentioned first treatment pipeline and the bypass pipeline. A valve is fixedly installed on the second circulating cooling water inlet pipeline between the filter and the four-way valve. A valve is fixedly installed on the second circulating cooling water inlet pipeline between the filter and the heat exchanger. A valve is fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the four-way valve. A valve is fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the second circulating cooling water inlet pipeline.

[0012] The structure of the utility model is reasonable and compact, and it is convenient to use. By arranging a filter on the second circulating cooling water inlet pipeline of the heat exchanger, it effectively filters impurities in the existing circulating cooling water device, improves the cleanliness of the circulating cooling water, reduces impurities in the heat exchanger, improves the heat exchange efficiency of the heat exchanger, extends the continuous operation time of the device, and solves the problems of device shutdown and production reduction caused by heat exchanger scaling in the BDO production process. Description of the Drawings

[0013] Attached Figure 1 is a schematic process flow diagram of the utility model.

[0014] Attached Figure 1 The codes in are respectively: 1 is the heat exchanger, 2 is the four-way valve, 3 is the first circulating cooling water inlet pipeline, 4 is the second circulating cooling water inlet pipeline, 5 is the circulating cooling water outlet pipeline, 6 is the first treatment pipeline, 7 is the filter, 8 is the standby circulating cooling water inlet pipeline, 9 is the standby filter, 10 is the bypass pipeline, 11 is the safety valve, 12 is the temperature display, 13 is the temperature regulating valve, and 14 is the valve. Detailed Embodiments

[0015] The utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solution of the utility model and the actual situation.

[0016] In the utility model, unless otherwise specified, the equipment and devices used are the existing well-known and commonly used equipment and devices in the art. For example, the heat exchanger can be an existing well-known and commonly used equipment.

[0017] In the utility model, for the convenience of description, the description of the relative position relationship of each component is based on the layout mode of the attached drawings of the specification. For example, the position relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the attached drawings of the specification. Figure 1 of the layout. Figure 1 to determine.

[0018] The present utility model will be further described below in conjunction with embodiments and the accompanying drawings:

[0019] Embodiment 1: As shown in the attached Figure 1 figure, the on-line filtering device for the heat exchange cooler includes a heat exchanger 1 and a four-way valve 2. A first circulating cooling water inlet pipeline 3 is fixedly connected to the first inlet of the four-way valve 2. A second circulating cooling water inlet pipeline 4 is fixedly connected between the first outlet of the four-way valve 2 and the inlet of the heat exchanger 1. A circulating cooling water outlet pipeline 5 is fixedly connected to the outlet of the heat exchanger 1. A first treatment pipeline 6 is fixedly connected between the second outlet of the four-way valve 2 and the circulating cooling water outlet pipeline 5. A filter 7 is fixedly installed on the second circulating cooling water inlet pipeline 4.

[0020] By arranging the filter 7 on the second circulating cooling water inlet pipeline 4 of the heat exchanger 1 in the present utility model, the circulating cooling water is filtered and the impurities are removed by the filter 7 and then sent to the heat exchanger 1, effectively filtering the impurities in the circulating cooling water, improving the cleanliness of the circulating cooling water, reducing the impurities in the heat exchanger 1, improving the heat exchange efficiency of the heat exchanger 1, extending the continuous operation time of the device, and solving the problems of device shutdown and production reduction caused by the scaling problem of the heat exchanger 1 in the BDO production process.

[0021] According to actual needs, the above on-line filtering device for the heat exchange cooler can be further optimized and / or improved:

[0022] Embodiment 2: The difference from Embodiment 1 is that: As shown in the attached Figure 1 figure, a spare circulating cooling water inlet pipeline 8 is fixedly connected between the third outlet of the four-way valve 2 and the second circulating cooling water inlet pipeline 4 between the filter 7 and the heat exchanger 1. A spare filter 9 is fixedly installed on the spare circulating cooling water inlet pipeline 8. By such an arrangement, a spare filter 9 is arranged in the spare circulating cooling water inlet pipeline 8. When the filter 7 needs to be replaced and maintained, the spare filter 9 is used. One is in use and the other is in reserve, without affecting the operation of the normal process, which is efficient and convenient.

[0023] Embodiment 3: The difference from Embodiments 1 to 2 is that: As shown in the attached Figure 1 figure, bypass pipelines 10 are fixedly connected to the spare circulating cooling water inlet pipeline 8 on the left and right sides corresponding to the spare filter 9. During use, when both the filter 7 and the spare filter 9 need to be replaced and maintained, the circulating cooling water is conveyed through the bypass pipelines 10 without affecting the operation of the normal process.

[0024] Embodiment 4: The difference from Embodiments 1 to 3 is that, according to needs, both the filter 7 and the spare filter 9 are basket filters with a mesh number of 100 meshes.

[0025] Embodiment 5: The difference from Embodiments 1 to 4 is that: As shown in the attached Figure 1As shown, a safety valve 11, a temperature display 12, and a temperature regulating valve 13 are successively and fixedly installed on the circulating cooling water outlet pipeline 5 between the heat exchanger 1 and the first processing pipeline 6. During use, the temperature of the circulating cooling water outlet is monitored at any time, and the operating temperature of the circulating cooling water device is effectively controlled within the specified range.

[0026] Example 6: The difference from Examples 1 to 5 is that as shown in the appendix Figure 1 As shown, valves 14 are fixedly installed on both the first processing pipeline 6 and the bypass pipeline 10, a valve 14 is fixedly installed on the second circulating cooling water inlet pipeline 4 between the filter 7 and the four-way valve 2, a valve 14 is fixedly installed on the second circulating cooling water inlet pipeline 4 between the filter 7 and the heat exchanger 1, a valve 14 is fixedly installed on the standby circulating cooling water inlet pipeline 8 between the standby filter 9 and the four-way valve 2, and a valve 14 is fixedly installed between the standby circulating cooling water inlet pipeline 8 between the standby filter 9 and the second circulating cooling water inlet pipeline 4.

[0027] As required, on each pipeline and equipment of this on-line filtering device for heat exchange coolers, conventional thermometers, pressure gauges, etc. well-known and commonly used in the art can also be provided according to production needs.

[0028] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effects. Non-essential technical features can be increased or decreased according to actual needs to meet the requirements of different situations.

[0029] The usage process of the embodiments of the present utility model:

[0030] Normal operation process: First, the circulating cooling water passes through the first circulating cooling water inlet pipeline 3 and the second circulating cooling water inlet pipeline 4, is filtered by the filter 7, and then the filtered circulating cooling water is sent to the heat exchanger 1 for heat exchange and then sent out through the circulating cooling water outlet pipeline 5;

[0031] Fault operation process: When both the filter 7 and the standby filter 9 need to be maintained and replaced, the circulating cooling water is sent out through the first circulating cooling water inlet pipeline 3, the bypass pipeline 10, and the circulating cooling water outlet pipeline 5;

[0032] When the heat exchange efficiency of the heat exchanger 1 decreases, the circulating cooling water is sent out through the first circulating cooling water inlet pipeline 3, the first processing pipeline 6, and the circulating cooling water outlet pipeline 5.

Claims

1. An on-line filtering device for a heat exchange cooler, characterized in that It includes a heat exchanger and a four-way valve. The first inlet of the four-way valve is fixedly connected to a first circulating cooling water inlet pipeline. There is a fixedly connected second circulating cooling water inlet pipeline between the first outlet of the four-way valve and the inlet of the heat exchanger. The outlet of the heat exchanger is fixedly connected to a circulating cooling water outlet pipeline. There is a fixedly connected first treatment pipeline between the second outlet of the four-way valve and the circulating cooling water outlet pipeline. A filter is fixedly installed on the second circulating cooling water inlet pipeline.

2. The on-line filtering device for a heat exchange cooler according to claim 1, characterized in that There is a fixedly connected standby circulating cooling water inlet pipeline between the third outlet of the four-way valve and the second circulating cooling water inlet pipeline between the filter and the heat exchanger. A standby filter is fixedly installed on the standby circulating cooling water inlet pipeline.

3. The on-line filtering device for a heat exchange cooler according to claim 2, characterized in that Bypass pipelines are fixedly connected to the standby circulating cooling water inlet pipeline on the left and right sides corresponding to the standby filter.

4. The online filtering device for a heat exchange cooler according to claim 2 or 3, characterized in that Both the filter and the standby filter are basket filters with a mesh number of 100 meshes.

5. The on-line filtering device for a heat exchange cooler according to claim 1 or 2 or 3, characterized in that A safety valve, a temperature display, and a temperature regulating valve are successively fixedly installed on the circulating cooling water outlet pipeline between the heat exchanger and the first treatment pipeline.

6. The on-line filtering device for a heat exchange cooler according to claim 4, characterized in that A safety valve, a temperature display, and a temperature regulating valve are successively fixedly installed on the circulating cooling water outlet pipeline between the heat exchanger and the first treatment pipeline.

7. The on-line filtering device for a heat exchange cooler according to claim 3 or 6, characterized in that Valves are fixedly installed on both the first treatment pipeline and the bypass pipeline. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the four-way valve. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the heat exchanger. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the four-way valve. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the second circulating cooling water inlet pipeline.

8. The on-line filtering device for a heat exchange cooler according to claim 4, characterized in that Valves are fixedly installed on both the first treatment pipeline and the bypass pipeline. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the four-way valve. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the heat exchanger. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the four-way valve. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the second circulating cooling water inlet pipeline.

9. The on-line filtering device for a heat exchange cooler according to claim 5, characterized in that Valves are fixedly installed on both the first treatment pipeline and the bypass pipeline. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the four-way valve. Valves are fixedly installed on the second circulating cooling water inlet pipeline between the filter and the heat exchanger. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the four-way valve. Valves are fixedly installed on the standby circulating cooling water inlet pipeline between the standby filter and the second circulating cooling water inlet pipeline.

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