Condensate water recovery device for food processing equipment

Abstract

A condensate water recovery device for food processing equipment comprises a hot water tank and a condensate water tank. A collecting opening, a water outlet and a water return opening are formed in the condensate water tank, a first liquid level sensor is arranged in the condensate water tank, the water outlet of the condensate water tank is connected with a heating medium inlet of a heat exchanger through a pipeline, and the other end of a first discharging pump is connected with a heating medium outlet of the heat exchanger through a pipeline; a first temperature sensor is arranged on the pipeline between the heat exchanger and the first one-way valve, the other end of the first one-way valve is connected with the first end of an automatic reversing valve through a pipeline, and the second end of the automatic reversing valve is connected with a water return opening of the condensate water tank through a pipeline. The third end of the automatic reversing valve is communicated with a boiler room condensate water pipeline through a pipeline. According to the condensate water recycling device for the food processing equipment, recycling of condensate water can be achieved, and energy waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of physics, and more particularly to food processing equipment, especially a condensate recovery device for food processing equipment. Background Technology

[0002] Currently, steam energy is frequently used in the heating process of food processing in the food processing industry. Whether it is generated by its own boiler or supplied by municipal steam, the energy consumption is significant. In the process of improving energy utilization efficiency, energy conservation and recycling are particularly important. In existing technologies, condensate from boiler rooms is often directly discharged, making energy recovery impossible and resulting in energy waste. Summary of the Invention

[0003] The purpose of this utility model is to provide a condensate recovery device for food processing equipment. The condensate recovery device for food processing equipment aims to solve the technical problem that condensate is often directly discharged in the prior art, which makes it impossible to recover energy and causes energy waste.

[0004] This utility model discloses a condensate recovery device for food processing equipment, comprising a hot water tank and a condensate tank;

[0005] The condensate tank is equipped with a collection port, an outlet, and a return port. A first liquid level sensor is installed in the condensate tank. The outlet of the condensate tank is connected to one end of a first discharge valve via a pipe. The other end of the first discharge valve is connected to one end of a first discharge pump via a pipe. The first discharge valve is also connected to a first drain valve via a pipe. The other end of the first discharge pump is connected to the heat medium inlet of a heat exchanger via a pipe. The heat medium outlet of the heat exchanger is connected to one end of a first check valve via a pipe. A first temperature sensor is installed on the pipe between the heat exchanger and the first check valve. The other end of the first check valve is connected to the first end of an automatic reversing valve via a pipe. The unidirectional flow direction of the first check valve is from the heat exchanger to the automatic reversing valve. The second end of the automatic reversing valve is connected to the return port of the condensate tank via a pipe. The third end of the automatic reversing valve is connected to the condensate pipe of the boiler room via a pipe.

[0006] The hot water tank is equipped with a water inlet, a water outlet, and a water return outlet. The water inlet of the hot water tank is connected to a water supply pipe via an automatic angle seat valve. The hot water tank is equipped with a second liquid level sensor and a second temperature sensor. The water outlet of the hot water tank is connected to one end of a second discharge valve via a pipe. The other end of the second discharge valve is connected to one end of a second discharge pump via a pipe. The second discharge valve is also connected to a second drain valve via a pipe. The other end of the second discharge pump is connected to the refrigerant inlet of the heat exchanger via a pipe. The refrigerant outlet of the heat exchanger is connected to one end of a second one-way valve. The other end of the second one-way valve is connected to the water return outlet of the hot water tank. The unidirectional flow direction of the second one-way valve is from the refrigerant outlet of the heat exchanger to the water return outlet of the hot water tank. A water point is provided on the pipe between the second one-way valve and the water return outlet of the hot water tank.

[0007] The signal output terminals of the first liquid level sensor, the first temperature sensor, the second liquid level sensor, the second temperature sensor, the first discharge pump, the automatic reversing valve, the automatic angle seat valve, and the second discharge pump are all connected to a controller.

[0008] Furthermore, the heat exchanger is a brazed heat exchanger.

[0009] Furthermore, both the condensate tank and the hot water tank are insulated tanks with a thickness of 100mm.

[0010] Furthermore, both the first temperature sensor and the second temperature sensor are contact sensors.

[0011] Furthermore, both the first liquid level sensor and the second liquid level sensor are hydrostatic liquid level sensors.

[0012] Furthermore, both the first discharge pump and the second discharge pump are centrifugal pumps.

[0013] Furthermore, the first discharge valve, the second discharge valve, the first drain valve, and the second drain valve are all manual butterfly valves.

[0014] Compared with the prior art, the effects of this invention are positive and significant. This invention provides a condensate recovery device for food processing equipment, which utilizes a heat exchanger to exchange heat with the condensate, enabling the recycling of the condensate and reducing energy waste. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a condensate recovery device for food processing equipment according to the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0017] like Figure 1 As shown, the present invention provides a condensate recovery device for food processing equipment, comprising a hot water tank 1 and a condensate tank 10.

[0018] The condensate tank 10 is equipped with a collection port (not shown in the figure), an outlet, and a return port. A first liquid level sensor 17 is installed in the condensate tank 10. The outlet of the condensate tank is connected to one end of a first discharge valve 11 via a pipe. The other end of the first discharge valve 11 is connected to one end of a first discharge pump 13 via a pipe. The first discharge valve 11 is also connected to a first drain valve 12 via a pipe. The other end of the first discharge pump 13 is connected to the heat medium inlet of a heat exchanger 8 via a pipe. The heat exchanger 8... The heat medium outlet is connected to one end of the first one-way valve 15 through a pipe. A first temperature sensor 14 is installed on the pipe between the heat exchanger 8 and the first one-way valve 15. The other end of the first one-way valve 15 is connected to the first end of an automatic reversing valve 9 through a pipe. The unidirectional flow direction of the first one-way valve 15 is from the heat exchanger 8 to the automatic reversing valve 9. The second end of the automatic reversing valve 9 is connected to the return port of the condensate tank 10 through a pipe. The third end of the automatic reversing valve 9 is connected to the boiler room condensate pipe 18 through a pipe.

[0019] The hot water tank 1 is equipped with a water inlet, a water outlet, and a water return outlet. The water inlet of the hot water tank 1 is connected to a water supply pipe through an automatic angle seat valve 16. The hot water tank 1 is equipped with a second liquid level sensor 3 and a second temperature sensor 2. The water outlet of the hot water tank 1 is connected to one end of a second discharge valve 4 through a pipe. The other end of the second discharge valve 4 is connected to one end of a second discharge pump 7 through a pipe. The second discharge valve 4 is also connected to a second drain valve 6 through a pipe. The other end of the second discharge pump 7 is connected to the refrigerant inlet of the heat exchanger 8 through a pipe. The refrigerant outlet of the heat exchanger 8 is connected to one end of a second one-way valve 5. The other end of the second one-way valve 5 is connected to the water return outlet of the hot water tank 1. The one-way flow direction of the second one-way valve 5 is from the refrigerant outlet of the heat exchanger 8 to the water return outlet of the hot water tank 1. A water point 19 is provided on the pipe between the second one-way valve 5 and the water return outlet of the hot water tank 1.

[0020] The signal output terminals of the first liquid level sensor 17, the first temperature sensor 14, the second liquid level sensor 3, and the second temperature sensor 2, as well as the control terminals of the first discharge pump 13, the automatic reversing valve 9, the automatic angle seat valve 16, and the second discharge pump 7, are all connected to a controller.

[0021] Furthermore, the heat exchanger 8 is a brazed heat exchanger, which greatly reduces the failure rate of the heat exchanger while ensuring heat exchange efficiency, thereby reducing later maintenance costs and initial investment costs.

[0022] Furthermore, both the condensate tank 10 and the hot water tank 1 are insulated tanks with a thickness of 100mm. The bottom and top of the insulated tanks are insulated, which effectively improves the utilization rate of condensate water while preventing energy loss due to heat dissipation from the equipment.

[0023] Furthermore, both the first temperature sensor 14 and the second temperature sensor 2 are contact sensors, and the detection probe of the contact sensor is made of SS316L food-grade stainless steel. This allows for accurate feedback of the temperature of hot water and condensate.

[0024] Furthermore, both the first liquid level sensor 17 and the second liquid level sensor 3 are hydrostatic liquid level sensors. Hydrostatic liquid level sensors can provide real-time and accurate feedback on the liquid levels of the hot water tank 1 and the condensate tank 10.

[0025] Furthermore, both the first discharge pump 13 and the second discharge pump 7 are centrifugal pumps.

[0026] Furthermore, the first discharge valve 11, the second discharge valve 4, the first ground valve 12, and the second ground valve 6 are all manual butterfly valves. These valves are only used to close the passage when the discharge pump or heat exchanger 8 is under maintenance. The frequency of use is low. Using manual butterfly valves can effectively reduce the consumption and cost of compressed air used to control the valves.

[0027] Specifically, the water usage point 19 includes the soft water replenishment point of the factory's CIP room (in-situ cleaning workshop) or the domestic water usage point such as the employee dormitory.

[0028] Specifically, the specific structure and principle of the components such as the liquid level sensor, temperature sensor, discharge pump, drain valve, discharge valve, heat exchanger 8, check valve, and controller in this embodiment, as well as other aspects not described in detail, all adopt well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0029] The working principle of this embodiment:

[0030] The first liquid level sensor 17 monitors the liquid level in the condensate tank 10, protecting the first condensate discharge pump 13 from running dry and preventing the condensate tank 10 from overflowing. The first temperature sensor 14 monitors the temperature inside the condensate tank 10. The second liquid level sensor 3 and the second temperature sensor 2 monitor the liquid level and temperature inside the hot water tank 1, respectively. The first one-way valve 15 prevents condensate backflow. The second one-way valve 5 prevents hot water backflow.

[0031] All the condensate from the heat exchanger in the factory boiler room after use is collected in the condensate tank 10 through the collection port.

[0032] Before the equipment is put into operation, the pipes are flushed to prevent welding debris and slag from damaging the equipment. The flushing water is discharged through the first drain valve 12 of the condensate tank 10 and the first drain valve 12 of the hot water tank 1. When the equipment starts to run, the first drain valve 12 is closed and the first discharge valve 11 is opened. The condensate tank 10 begins to collect the condensate from the heat exchanger in the factory boiler room through the collection port. At the same time, the second drain valve 6 is closed and the second discharge valve 4 is opened. Under the control of the controller, when the liquid level in the hot water tank 1 is lower than 50% of the effective liquid level, the automatic angle seat valve 16 opens to start replenishing soft water. When the effective liquid level is reached 100%, the water replenishment stops, realizing automatic water replenishment of the hot water tank 1.

[0033] When the liquid level in the condensate tank 10 exceeds 30%, the first discharge pump 13 is activated, and the condensate enters a self-circulation mode (condensate tank 10 outlet → first discharge valve 11 → first discharge pump 13 → heat exchanger 8 → first check valve 15 → automatic reversing valve 9 → condensate tank 10 return port). The second discharge pump 7 is then activated, initiating heat recovery. Water from the hot water tank 1 passes through the second discharge valve 4 and the second discharge pump 7 into the heat exchanger 8, where it exchanges heat with the condensate, thus receiving heating. After passing through the point of use, it returns to the return port of the hot water tank 1. When there is no water usage at the point of use, hot water circulation continues.

[0034] When the temperature of the first temperature sensor 14 is less than the set value or the condensate tank 10 reaches 100% effective liquid level, the controller switches the automatic reversing valve 9, so that the first end of the automatic reversing valve 9 is connected to the third end. The condensate is then returned to the boiler room for reuse after passing through the reversing valve 9 and the boiler room condensate pipe 18.

[0035] When the liquid level in the condensate tank 10 drops below 70% again, the controller switches the automatic reversing valve 9, connecting the first and second ends of the automatic reversing valve 9, and the condensate re-enters the self-circulation mode.

Claims

1. A condensate recovery device for a food processing appliance, characterized in that, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

2. A condensate recovery device for a food processing appliance as claimed in claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

3. A condensate recovery device for a food processing appliance as claimed in claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

4. The condensate recovery device for a food processing equipment according to claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

5. The condensate recovery device for a food processing equipment according to claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

6. The condensate recovery device for a food processing equipment according to claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank.

7. The condensate recovery device for a food processing equipment according to claim 1, wherein, The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the condensate tank. The condensate tank is provided with a collecting port, a water outlet and a water return port, and a first liquid level sensor is arranged in the cond

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