Intelligent sampling cooler

Abstract

The utility model belongs to the field of boiler auxiliary equipment, and relates to an intelligent sampling cooler which comprises a cooling unit, a first sampling medium pipeline, a second sampling medium pipeline, a first cooling medium pipeline, a second cooling medium pipeline, a control box and a cable. The cooling unit adopts a shell-and-tube type or plate type heat exchange structure, and the sampling medium is cooled through indirect contact heat exchange. And the sampling medium pipeline and the cooling medium pipeline are respectively provided with a regulating valve, a flow meter and a thermometer for accurately monitoring and controlling the flow and the temperature. The control box is integrated with a PLC and a touch screen, signals are transmitted through a cable, and therefore the opening degree of the valve is automatically adjusted, and intelligent management of the sampling process is achieved. The method is easy and convenient to operate, and sampling can be completed only by inputting parameters into the control box; the safety is high, and high-temperature medium damage is avoided; resources are saved, and waste is reduced by automatically closing the valve after sampling; through heat recovery, the energy utilization rate is increased; sampling is accurate, and data reliability is ensured through real-time monitoring.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of boiler auxiliary equipment, and relates to an intelligent sampling cooler. BACKGROUND

[0002] With the continuous development of industrial technology, thermal energy utilization equipment has been widely used in the fields of energy, chemical industry, power and so on. Among them, the equipment such as boiler and heat exchanger heats the working medium (such as water or other fluid) to a certain parameter (such as temperature and pressure) by burning fuel or other heat source, so as to produce steam, hot water or other heat medium. These heat mediums play a crucial role in industrial production, such as driving steam turbine to generate electricity, providing process heat or heating. However, in order to ensure the operation safety and stability of these equipment, it is usually necessary to regularly sample and test the flowing heat medium (such as steam or hot water) in the system to monitor whether its chemical composition meets the design requirements.

[0003] In the traditional industrial practice, the sampling process usually relies on sampling coolers. The main function of the sampling cooler is to cool the high-temperature heat medium to a temperature range suitable for direct detection, because the temperature of steam or hot water is often as high as hundreds of degrees Celsius, which cannot be directly sampled manually or measured by instrument. The existing sampling coolers mostly use cooling medium (such as circulating water) to reduce the temperature of the sampling medium by heat exchange, and then output the cooled medium to the testing equipment. However, although the sampling cooler has been widely used in industry, its design and operation mode still have many deficiencies, which limit its applicability in modern intelligent and energy-saving production.

[0004] Firstly, the traditional sampling cooler usually adopts manual control mode. The operator needs to manually open or close the valves on the sampling medium pipeline and the cooling medium pipeline at each sampling time. This operation mode not only has complicated steps, increases labor intensity, but also leads to low sampling efficiency due to the uncontrollability of human operation. For example, it is difficult to accurately control the flow and cooling degree of the sampling medium by manual adjustment of the valve, which may lead to inconsistent sampling results, thereby affecting the reliability of the test data.

[0005] Secondly, the safety of the traditional sampling cooler has hidden dangers. Since the sampling medium is usually in a high-temperature and high-pressure state, if the manual adjustment is not proper, it may lead to the conditions of too fast flow rate or too high outlet water temperature. In this case, the high-temperature medium may be directly sprayed or scald the operator, and even cause the risk of equipment damage. In addition, if the temperature of the cooled sampling medium still does not reach the safe range, it will also bring difficulties to the subsequent testing process.

[0006] Third, the existing sampling cooler is low in resource utilization efficiency. For example, in the traditional design, circulating water is often used as the cooling medium, which is directly discharged into the environment through the cooling tower or drainage system after absorbing heat. This heat dissipation not only wastes energy but also increases the operating burden of auxiliary equipment such as cooling towers. Meanwhile, after sampling is completed, if the operator fails to close the valve of the cooling medium pipeline in time, the cooling water will continue to flow, further wasting water resources. This situation is particularly pronounced in industrial scenarios with high-frequency sampling, exacerbating production costs and environmental burdens.

[0007] Fourth, from the perspective of energy saving and environmental protection, the design of the existing sampling cooler lacks consideration of heat recovery. The large amount of heat energy absorbed by the cooling medium during heat exchange is not effectively utilized but is directly dissipated into the atmosphere. With the increasing global demand for energy efficiency and environmental protection, the disadvantages of energy waste are becoming increasingly prominent. For example, in some systems that require continuous heating, if the heat dissipated from the sampling cooler can be recovered and reintroduced into the heating cycle, not only can energy consumption be reduced, but also the overall thermal efficiency of the system can be improved. However, due to the limitations of structure and control method, the traditional sampling cooler is difficult to achieve this goal.

[0008] In summary, the existing sampling cooler has significant defects in terms of operational convenience, safety, resource utilization efficiency, and energy saving and environmental protection. As industrial production moves towards intelligentization, automation, and greenization, there is an urgent need for a new type of sampling cooler that can overcome the above problems, achieve precise control of the sampling medium, simplify the operation process, improve safety, and effectively utilize energy. This demand has driven the development of intelligent sampling cooling technology, laying the technical background and practical foundation for the invention. Practical new type content

[0009] Therefore, the purpose of the present utility model is to provide an intelligent sampling cooler to overcome the defects of the prior art.

[0010] To achieve the above purpose, the present utility model provides the following technical solutions: an intelligent sampling cooler, comprising a cooling unit, a first sampling medium pipeline, a second sampling medium pipeline, a first cooling medium pipeline, a second cooling medium pipeline, a control box, and a cable, wherein a sampling medium pipeline regulating valve is arranged on the second sampling medium pipeline, and a cooling medium pipeline regulating valve is arranged on the cooling medium pipeline; the opening degree and switching time of the sampling medium pipeline regulating valve and the cooling medium pipeline regulating valve are adjusted to precisely control the volume, flow rate, and temperature of the sampling medium.

[0011] Optionally, the cooling unit is a device that provides indirect contact heat exchange between the sampling medium and the cooling medium, and its structure is in the form of a tube-shell or a plate.

[0012] Optionally, the first sampling medium pipeline and the second sampling medium pipeline are placed before and after the cooling unit, respectively. The second sampling medium pipeline is equipped with a sampling medium pipeline regulating valve, a sampling medium pipeline flow meter and a sampling medium pipeline thermometer for monitoring the flow rate and temperature of the sampling medium.

[0013] Optionally, the sampling medium passing through the first sampling medium pipeline and the second sampling medium pipeline is steam or hot water.

[0014] Optionally, the first cooling medium pipeline and the second cooling medium pipeline are respectively placed before and after the cooling unit. The cooling medium pipeline is equipped with a cooling medium pipeline regulating valve, a cooling medium pipeline flow meter and a cooling medium pipeline thermometer for regulating and monitoring the flow rate and temperature of the cooling medium.

[0015] Optionally, the cooling medium passing through the first and second cooling medium pipes is purified water, and the heat absorbed by the cooling medium from the cooling unit can be recovered to the heating system.

[0016] Optionally, the control box includes a housing, control circuit, PLC electrical components, and a touch screen operation display component. It is connected to the sampling medium pipeline regulating valve and the cooling medium pipeline regulating valve via cables to control the flow rate, volume, and temperature of the sampling medium and the cooling medium.

[0017] Optionally, the sampling medium pipeline regulating valve and the cooling medium pipeline regulating valve are electric valves or pneumatic valves.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1) Easy to operate: Intelligent adjustment via the control box eliminates the need for manual valve switching, improving sampling efficiency;

[0020] 2) High safety: Precise control of flow and temperature, combined with monitoring equipment, avoids high-temperature burns or accidents;

[0021] 3) Resource conservation: The cooling medium pipeline regulating valve is automatically closed after sampling to reduce waste;

[0022] 4) Energy saving and environmental protection: The heat from the cooling medium can be recovered to the heating system, improving energy efficiency;

[0023] 5) Precise sampling: Real-time monitoring of flow rate and temperature ensures reliable sample quality.

[0024] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 This is a schematic diagram of an intelligent sampling cooler according to the present invention.

[0027] Reference numerals in the attached drawings: 1. Cooling unit; 2. First sampling medium pipeline; 3. Second sampling medium pipeline; 4. Sampling medium pipeline regulating valve; 5. Sampling medium pipeline flow meter; 6. Sampling medium pipeline thermometer; 7. First cooling medium pipeline; 8. Second cooling medium pipeline; 9. Cooling medium pipeline regulating valve; 10. Cooling medium pipeline flow meter; 11. Cooling medium pipeline thermometer; 12. Control box; 13. Cable. Detailed Implementation

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0030] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Please see Figure 1 This is an intelligent sampling cooler suitable for sampling and cooling steam in industrial boiler systems. Its structure includes a cooling unit 1, a first sampling medium pipeline 2, a second sampling medium pipeline 3, a first cooling medium pipeline 7, a second cooling medium pipeline 8, a control box 12, and cables 13. The components are connected by pipes and electrical connections to form a complete system.

[0032] In this embodiment, the cooling unit 1 adopts a shell-and-tube heat exchanger structure, with a heat exchange tube bundle inside to achieve indirect contact heat exchange between the sampling medium and the cooling medium. The first sampling medium pipeline 2 is connected to the boiler steam outlet, introducing high-temperature steam into the cooling unit 1. The second sampling medium pipeline 3 is connected to the output end of the cooling unit 1, used to output cooled steam or condensate. A sampling medium pipeline regulating valve 4, a sampling medium pipeline flow meter 5, and a sampling medium pipeline thermometer 6 are sequentially installed on the second sampling medium pipeline 3.

[0033] In this embodiment, the sampling medium pipeline regulating valve 4 is an electric ball valve, which can control the steam flow rate by adjusting the opening degree; the sampling medium pipeline flow meter 5 is a vortex flow meter with a measurement range of 0-5L / min; the sampling medium pipeline thermometer 6 is a thermocouple temperature sensor or a PT100 resistance temperature detector with a measurement range of 0-100℃, used to monitor the temperature of the output medium.

[0034] The cooling medium is purified water, which enters the cooling unit 1 through the first cooling medium pipeline 7 and exits through the second cooling medium pipeline 8 after heat exchange. The first cooling medium pipeline 7 is equipped with a cooling medium pipeline regulating valve 9, which is a pneumatic regulating valve used to control the flow rate of the purified water.

[0035] In this embodiment, a cooling medium pipeline flow meter 10 and a cooling medium pipeline thermometer 11 are installed on the second cooling medium pipeline 8. The cooling medium pipeline flow meter 10 is an electromagnetic flow meter with a measurement range of 0-200 L / min. The cooling medium pipeline thermometer 11 is a PT100 resistance thermometer with a measurement range of 0-150℃, used to monitor the temperature change of the cooling water.

[0036] The control box 12 is the core control component of the intelligent sampling cooler, integrating a housing, control circuit, PLC controller, and touch screen display. The control box 12 is connected via cables 13 to the sampling medium pipeline regulating valve 4, the cooling medium pipeline regulating valve 9, the sampling medium pipeline flow meter 5, the sampling medium pipeline thermometer 6, the cooling medium pipeline flow meter 10, and the cooling medium pipeline thermometer 11, respectively, to achieve signal transmission and the issuance of control commands.

[0037] In this embodiment, the sampling personnel first set the target parameters on the touchscreen of the control box 12. Based on the input parameters, the PLC controls the opening of the sampling medium pipeline regulating valve 4 and the cooling medium pipeline regulating valve 9 via cable 13. High-pressure steam enters the cooling unit 1 through the first sampling medium pipeline 2, exchanging heat with the purified water input through the first cooling medium pipeline 7. The cooled condensate is output through the second sampling medium pipeline 3, and its flow rate and temperature are monitored in real time by the sampling medium pipeline flow meter 5 and the sampling medium pipeline thermometer 6, and fed back to the control box 12. Simultaneously, the purified water, after absorbing heat, is output through the second cooling medium pipeline 8, and its status is monitored by the cooling medium pipeline flow meter 10 and the cooling medium pipeline thermometer 11. If the monitored values ​​deviate from the set range, the control box 12 will automatically adjust the opening of regulating valves 4 and 9 until the requirements are met.

[0038] After sampling is completed, control box 12 commands the sampling medium pipeline regulating valve 4 and the cooling medium pipeline regulating valve 9 to close via cable 13, stopping the flow of the medium and preventing waste of cooling water. Furthermore, the heat absorbed by the purified water can be connected to the boiler system's heat recovery device via the second cooling medium pipeline 8, further improving energy efficiency.

[0039] The intelligent sampling cooler in this embodiment achieves automation, precision, and energy saving in the sampling process through the above-described structure and control method, and is suitable for sampling needs of high-temperature media such as boilers and chemical reactors.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An intelligent sampling cooler, characterized in that: It includes a cooling unit, a first sampling medium pipeline, a second sampling medium pipeline, a first cooling medium pipeline, a second cooling medium pipeline, a control box, and cables. A sampling medium pipeline regulating valve is installed on the second sampling medium pipeline, and a cooling medium pipeline regulating valve is installed on the cooling medium pipeline. The volume, flow rate, and temperature of the sampling medium are precisely controlled by adjusting the opening degree and switching time of the regulating valves in the sampling medium pipeline and the cooling medium pipeline.

2. The intelligent sampling cooler according to claim 1, characterized in that: The cooling unit is a device that provides indirect heat exchange between the sampling medium and the cooling medium, and its structure can be shell-and-tube or plate-type.

3. The intelligent sampling cooler according to claim 1, characterized in that: The first sampling medium pipeline and the second sampling medium pipeline are respectively placed before and after the cooling unit. The second sampling medium pipeline is equipped with a sampling medium pipeline regulating valve, a sampling medium pipeline flow meter and a sampling medium pipeline thermometer for monitoring the flow rate and temperature of the sampling medium.

4. The intelligent sampling cooler according to claim 3, characterized in that: The sampling medium passing through the first and second sampling medium pipelines is steam or hot water.

5. The intelligent sampling cooler according to claim 1, characterized in that: The first cooling medium pipeline and the second cooling medium pipeline are respectively placed before and after the cooling unit. The cooling medium pipeline is equipped with a cooling medium pipeline regulating valve, a cooling medium pipeline flow meter and a cooling medium pipeline thermometer for regulating and monitoring the flow and temperature of the cooling medium.

6. The intelligent sampling cooler according to claim 5, characterized in that: The cooling medium passing through the first and second cooling medium pipes is purified water, and the heat absorbed by the cooling medium from the cooling unit can be recovered to the heating system.

7. The intelligent sampling cooler according to claim 1, characterized in that: The control box includes a housing, control circuit, PLC electrical components, and a touch screen operation display component. It is connected to the sampling medium pipeline regulating valve and the cooling medium pipeline regulating valve via cables, and is used to control the flow rate, volume, and temperature of the sampling medium and the cooling medium.

8. The intelligent sampling cooler according to claim 1, characterized in that: The sampling medium pipeline regulating valve and the cooling medium pipeline regulating valve are electric valves or pneumatic valves.

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