A heat pump heating system for a soybean pressing workshop conditioning tower

Abstract

The utility model discloses a kind of heat pump heating systems for soybean squeezing workshop conditioning tower, including conditioning tower, condensate tank, heat pump unit and PLC controller, conditioning tower includes primary plate heat exchanger and secondary plate heat exchanger, heat pump unit includes heat source import, heat source export, hot water import and hot water export, the water outlet of condensate tank is connected with the import of primary plate heat exchanger, the outlet of primary plate heat exchanger is connected with the water inlet end of heat source import and condensate tank, heat source export is connected with condensate water return pipeline, hot water export is connected with the import of secondary plate heat exchanger, the outlet of secondary plate heat exchanger is connected with hot water import, heat pump unit is connected with PLC controller signal.The utility model provides a kind of heat pump heating systems for soybean squeezing workshop conditioning tower, can recycle and utilize condensate heat and generate high-temperature hot water by heat pump unit to heat conditioning tower and heat soybean, realize energy saving.

Description

Technical Field

[0001] This utility model relates to the technical field of conditioning tower heating systems, and in particular to a heat pump heating system for a conditioning tower in a soybean pressing workshop. Background Technology

[0002] In the soybean oil pressing industry, soybean pretreatment is a crucial process. Soybean pretreatment involves heating and conditioning the soybeans in a conditioning tower to adjust their temperature and moisture content, facilitating subsequent rolling and pressing. Currently, conventional conditioning tower heating systems primarily use industrial steam as the heat source. This traditional method has significant drawbacks: First, generating steam requires large amounts of coal or natural gas, resulting in high energy costs throughout the pretreatment process and increased production costs. Second, steam generates a large amount of condensate after heat exchange; the waste heat carried by this condensate is not fully recovered and utilized in existing systems and is often directly discharged, causing significant energy waste and economic losses. Therefore, it is necessary to develop a new, highly efficient heat pump heating system for conditioning towers in soybean pressing workshops to solve the problems of high energy consumption and low thermal efficiency in existing technologies and to achieve the recovery and utilization of waste heat from the condensate. Utility Model Content

[0003] Given the high energy consumption and waste caused by the failure to fully utilize the heat of the condensate after steam condensation in the current conditioning tower heating system, this utility model provides a heat pump heating system for the conditioning tower in a soybean pressing workshop. This system can recover and utilize the heat of the condensate and generate high-temperature hot water through a heat pump unit to heat the soybeans in the conditioning tower, thereby achieving energy saving.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A heat pump heating system for a conditioning tower in a soybean pressing workshop includes a conditioning tower, a condensate tank, a heat pump unit, and a PLC controller. The conditioning tower includes a primary plate heat exchanger and a secondary plate heat exchanger. The heat pump unit includes a heat source inlet, a heat source outlet, a hot water inlet, and a hot water outlet. The outlet of the condensate tank is connected to the inlet of the primary plate heat exchanger via a condensate supply pipeline. The outlet of the primary plate heat exchanger is connected to the heat source inlet and the inlet of the condensate tank via a waste heat recovery supply pipeline and a condensate return pipeline, respectively. The heat source outlet is connected to the condensate return pipeline via a waste heat recovery return pipeline. The hot water outlet is connected to the inlet of the secondary plate heat exchanger via a high-temperature hot water supply pipeline. The outlet of the secondary plate heat exchanger is connected to the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. The heat pump unit is signal-connected to the PLC controller, which sends setting parameter commands to the heat pump unit and receives its operating status data.

[0006] According to one aspect of this utility model, a buffer water tank is provided on the high-temperature hot water return pipe.

[0007] According to one aspect of this utility model, a liquid level monitoring component and a temperature transmitter are provided inside the buffer water tank.

[0008] According to one aspect of this utility model, a flow transmitter, a temperature transmitter, and a pressure transmitter are installed on the high-temperature hot water return pipe.

[0009] According to one aspect of this utility model, the flow transmitter, temperature transmitter and pressure transmitter are signal-connected to the PLC controller.

[0010] According to one aspect of this utility model, a high-temperature hot water pump, a temperature transmitter, and a pressure transmitter are installed on the high-temperature hot water supply pipeline.

[0011] According to one aspect of the present invention, the high-temperature hot water pump includes a main pump and a standby pump connected in parallel.

[0012] According to one aspect of this utility model, a temperature transmitter and a pressure transmitter are installed on the condensate return pipe and the condensate supply pipe.

[0013] According to one aspect of this utility model, the waste heat recovery return water pipeline is equipped with a waste heat recovery water pump and valves.

[0014] According to one aspect of this utility model, the heat pump unit is a high-temperature industrial water source heat pump.

[0015] Advantages of this invention: A heat pump heating system for a soybean pressing workshop's conditioning tower includes a conditioning tower, a condensate tank, a heat pump unit, and a PLC controller. The conditioning tower includes a primary plate heat exchanger and a secondary plate heat exchanger. The heat pump unit includes a heat source inlet, a heat source outlet, a hot water inlet, and a hot water outlet. Condensate in the condensate tank is transported to the primary plate heat exchanger via a condensate supply pipeline to preheat the soybeans. The preheated low-temperature condensate is connected to the heat source inlet of the heat pump unit and the inlet of the condensate tank. The heat pump unit utilizes the heat in the preheated low-temperature condensate to generate high-temperature hot water. This high-temperature hot water is transported to the secondary plate heat exchanger via a high-temperature hot water supply pipeline to heat the soybeans. The high-temperature hot water then becomes low-temperature water, which returns to the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. Therefore, this heat pump heating system can recover and utilize the heat from the condensate and generate high-temperature hot water from the heat pump unit for heating the soybeans in the conditioning tower, achieving energy savings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a heat pump heating system for a conditioning tower in a soybean pressing workshop, as described in this utility model.

[0018] Figure 1 The components are: 1. Conditioning tower; 2. Heat pump unit; 3. Condensate tank; 4. Buffer tank; 5. Primary plate heat exchanger; 6. Secondary plate heat exchanger; 7. High-temperature hot water pump; 8. Waste heat recovery pump; 9. Condensate pump; 10. Waste heat recovery water supply pipeline; 11. Waste heat recovery water return pipeline; 12. High-temperature hot water supply pipeline; 13. High-temperature hot water return pipeline; 14. Condensate supply pipeline; 15. Condensate return pipeline. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 As shown, a heat pump heating system for a conditioning tower in a soybean pressing workshop includes a conditioning tower, a condensate tank, a heat pump unit, and a PLC controller. The conditioning tower includes a primary plate heat exchanger and a secondary plate heat exchanger. The heat pump unit includes a heat source inlet, a heat source outlet, a hot water inlet, and a hot water outlet. The outlet of the condensate tank is connected to the inlet of the primary plate heat exchanger via a condensate supply pipeline. The outlet of the primary plate heat exchanger is connected to the heat source inlet and the inlet of the condensate tank via a waste heat recovery supply pipeline and a condensate return pipeline, respectively. The heat source outlet is connected to the condensate return pipeline via a waste heat recovery return pipeline. The hot water outlet is connected to the inlet of the secondary plate heat exchanger via a high-temperature hot water supply pipeline. The outlet of the secondary plate heat exchanger is connected to the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. The heat pump unit is signal-connected to the PLC controller, which sends setting parameter commands to the heat pump unit and receives its operating status data.

[0024] During operation, condensate from the condensate tank is transported to the primary plate heat exchanger via a condensate supply pipeline to preheat the soybeans. The preheated, low-temperature condensate is then connected to the heat source inlet of the heat pump unit via a waste heat recovery supply pipeline. The heat pump unit utilizes the heat from the preheated, low-temperature condensate to generate high-temperature hot water. This high-temperature hot water is then transported to the secondary plate heat exchanger via a high-temperature hot water supply pipeline to heat the soybeans. The high-temperature hot water then becomes low-temperature water, which re-enters the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. Therefore, this heat pump heating system can recover and utilize the heat from the condensate, generating high-temperature hot water for use in the conditioning tower to heat the soybeans, thus achieving energy savings.

[0025] In practical applications, a buffer tank is installed on the high-temperature hot water return pipeline. When the condition of the soybeans in the conditioning tower changes, causing a decrease in heating load, the buffer tank can buffer the impact on the normal operation of the heat pump unit, ensuring stable operation of the heat pump unit when facing fluctuations in heating demand. Furthermore, a liquid level monitoring component and a temperature transmitter are installed in the buffer tank, and these components are connected to the PLC controller. The liquid level monitoring component allows for real-time monitoring of the water level in the buffer tank, while the temperature transmitter measures the temperature and converts the temperature signal into an electrical signal, which is then transmitted to the PLC controller, enabling monitoring and control of the temperature within the buffer tank.

[0026] In practical applications, existing equipment can be used for the heat pump unit and conditioning tower, and there are no restrictions on this. For example, a high-temperature industrial water source heat pump can be selected for the heat pump unit, specifically the NT-WS-700DG high-temperature industrial water source heat pump from Norton Technology. The conditioning tower can be a SOLEX C2183AB conditioning tower.

[0027] In practical applications, the heat pump unit and the PLC controller are connected via the Modbus industrial bus protocol, enabling efficient data exchange and control command transmission between them. Through the Modbus protocol, the heat pump heating system can monitor the operating status of the heat pump unit in real time, adjust operating parameters, and ensure the stability and reliability of the heat pump unit's operation. Furthermore, the use of the Modbus protocol simplifies the integration process of the heat pump heating system, reduces maintenance costs, and improves the overall system's flexibility and scalability.

[0028] In practical applications, valves, flow transmitters, temperature transmitters, and pressure transmitters are installed on the high-temperature hot water return pipe. These transmitters are connected to a PLC controller. The flow transmitter measures the flow rate of the high-temperature hot water and converts the flow signal into an electrical signal, which is then transmitted to the PLC controller for real-time monitoring and control of the flow. The pressure transmitter measures the pressure and converts the pressure signal into an electrical signal, which is also transmitted to the PLC controller for real-time monitoring and control of the pressure. Therefore, by installing flow transmitters, temperature transmitters, and pressure transmitters, flow, temperature, and pressure parameters can be monitored in real time, enabling the heat pump heating system to achieve efficient and stable operation.

[0029] In practical applications, the high-temperature hot water supply pipeline is equipped with a high-temperature hot water pump, valves, temperature transmitters, and pressure transmitters. The high-temperature hot water pump consists of two sets: a main pump and a standby pump, which are connected in parallel. In the event of a failure of the main pump, the standby pump can start quickly to maintain the continuous operation of the system, while also facilitating maintenance and repair without affecting system performance.

[0030] In practical applications, the waste heat recovery return water pipeline is equipped with a waste heat recovery water pump and valves. The waste heat recovery water pump is also equipped with two sets of pumps: a main pump and a standby pump. The main pump and the standby pump are connected in parallel. In the event of a failure of the main pump, the standby pump can start quickly to maintain the continuous operation of the system, and it also facilitates maintenance and repair without affecting the system performance.

[0031] In practical applications, the condensate supply pipeline is equipped with a condensate pump and valves. The valves are used to regulate and control the water flow, ensuring that the system can perform precise flow control according to different operating conditions. Temperature transmitters and pressure transmitters are installed on the condensate return pipeline and the condensate supply pipeline.

[0032] Advantages of this invention: A heat pump heating system for a soybean pressing workshop's conditioning tower includes a conditioning tower, a condensate tank, a heat pump unit, and a PLC controller. The conditioning tower includes a primary plate heat exchanger and a secondary plate heat exchanger. The heat pump unit includes a heat source inlet, a heat source outlet, a hot water inlet, and a hot water outlet. Condensate in the condensate tank is transported to the primary plate heat exchanger via a condensate supply pipeline to preheat the soybeans. The preheated low-temperature condensate is connected to the heat source inlet of the heat pump unit and the inlet of the condensate tank. The heat pump unit utilizes the heat in the preheated low-temperature condensate to generate high-temperature hot water. This high-temperature hot water is transported to the secondary plate heat exchanger via a high-temperature hot water supply pipeline to heat the soybeans. The high-temperature hot water then becomes low-temperature water, which returns to the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. Therefore, this heat pump heating system can recover and utilize the heat from the condensate and generate high-temperature hot water from the heat pump unit for heating the soybeans in the conditioning tower, achieving energy savings.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A heat pump heating system for a conditioning tower in a soybean pressing workshop, characterized in that, The system includes a conditioning tower, a condensate tank, a heat pump unit, and a PLC controller. The conditioning tower contains a primary plate heat exchanger and a secondary plate heat exchanger. The heat pump unit includes a heat source inlet, a heat source outlet, a hot water inlet, and a hot water outlet. The outlet of the condensate tank is connected to the inlet of the primary plate heat exchanger via a condensate supply pipeline. The outlet of the primary plate heat exchanger is connected to the heat source inlet and the inlet of the condensate tank via a waste heat recovery supply pipeline and a condensate return pipeline, respectively. The heat source outlet is connected to the condensate return pipeline via a waste heat recovery return pipeline. The hot water outlet is connected to the inlet of the secondary plate heat exchanger via a high-temperature hot water supply pipeline. The outlet of the secondary plate heat exchanger is connected to the hot water inlet of the heat pump unit via a high-temperature hot water return pipeline. The heat pump unit is signal-connected to the PLC controller, which sends setting parameter commands to the heat pump unit and receives its operating status data.

2. The heat pump heating system for the conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, A buffer tank is installed on the high-temperature hot water return pipe.

3. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 2, characterized in that, The buffer tank is equipped with a liquid level monitoring component and a temperature transmitter.

4. The heat pump heating system for the conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, The high-temperature hot water return pipe is equipped with a flow transmitter, a temperature transmitter, and a pressure transmitter.

5. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 4, characterized in that, The flow transmitter, temperature transmitter, and pressure transmitter are connected to the PLC controller via signals.

6. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, The high-temperature hot water supply pipeline is equipped with a high-temperature hot water pump, a temperature transmitter, and a pressure transmitter.

7. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 6, characterized in that, The high-temperature hot water pump includes a main pump and a standby pump connected in parallel.

8. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, Temperature transmitters and pressure transmitters are installed on the condensate return pipe and the condensate supply pipe.

9. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, The waste heat recovery return water pipeline is equipped with a waste heat recovery water pump and valves.

10. A heat pump heating system for a conditioning tower in a soybean pressing workshop according to claim 1, characterized in that, The heat pump unit is a high-temperature industrial water source heat pump.

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