Tobacco drying machine condensate collection system

Abstract

The present disclosure provides a condensate collection system for a tow dryer, comprising: at least one condensate source, a device for generating condensate in the tow dryer; a cooling device configured to provide a cooling medium; and at least one condensate treatment device, disposed in correspondence with the at least one condensate source. The condensate treatment device includes a heat exchanger and a first water collector, the heat exchanger being connected to the at least one condensate source and configured to cool condensate generated by the corresponding condensate source using the cooling medium. The first water collector is disposed downstream of the heat exchanger in the direction of condensate flow and configured to collect the cooled condensate. The condensate collection system for a tow dryer provided by the present disclosure can accurately collect condensate.

Description

Technical Field

[0001] The present disclosure relates to the field of tobacco processing equipment, and in particular to a condensate collection system for a tobacco drying machine. Background Art

[0002] The tobacco dryer is a crucial piece of equipment in the cigarette manufacturing process and one of the most energy-intensive. The dryer's primary heat source is steam. A portion of the steam flows through the cylinder walls and the inside of the shavings plate, transferring heat to the tobacco leaves through conduction. The remaining steam flows to the radiator, where it heats the outside air, generating hot air that enters the cylinder. This air then transfers heat through convection, removing moisture generated during the drying process.

[0003] However, the current tofu drying equipment lacks the means to accurately measure the amount of condensate in each pipeline, which brings great inconvenience to the calculation of steam utilization efficiency and evaluation of heat exchange conditions of the tofu drying equipment. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a condensate collection system for a tofu drying machine to accurately collect condensate.

[0005] The present disclosure provides a condensate collection system for a tofu drying machine, comprising:

[0006] at least one condensate source, which is a device for generating condensate in the tofu drying machine;

[0007] a cooling device configured to provide a cooling medium; and

[0008] At least one condensate treatment device is arranged corresponding to the at least one condensate source, and the condensate treatment device includes a heat exchanger and a first water collector. The heat exchanger is connected to the at least one condensate source and is configured to use the cooling medium to cool the condensate generated by the corresponding condensate source. The first water collector is arranged downstream of the heat exchanger along the flow direction of the condensate and is configured to collect the cooled condensate.

[0009] According to some embodiments of the present disclosure, the condensate treatment device includes:

[0010] a weighing device configured to obtain the weight of the condensed water in the first water collector; and / or

[0011] a flow meter, disposed on a pipeline between the heat exchanger and the first water collector and configured to obtain a flow rate of the condensate flowing from the heat exchanger to the first water collector; and / or

[0012] A temperature sensor is configured to obtain the temperature of the condensed water flowing from the heat exchanger to the first water collector.

[0013] According to some embodiments of the present disclosure, the heat exchanger includes:

[0014] a housing connected to the cooling device; and

[0015] A condensate pipeline is arranged in the shell and has two ends connected to the corresponding condensate source and the first water collector respectively. A cavity for accommodating the cooling medium is formed between the shell and the condensate pipeline.

[0016] According to some embodiments of the present disclosure, the condensate pipeline is spiral-shaped.

[0017] According to some embodiments of the present disclosure,

[0018] The condensate collection system for the tow dryer further comprises a cooling medium treatment device, which is disposed downstream of the at least one condensate treatment device along the flow direction of the cooling medium and is configured to perform physical and / or chemical treatment on the cooling medium from the heat exchanger; and / or

[0019] The heat exchanger has a cooling medium inlet and a cooling medium outlet. The condensate treatment device includes a cooling medium heat dissipation module connected to the cooling medium outlet and configured to dissipate heat from the cooling medium flowing out of the cooling medium outlet.

[0020] According to some embodiments of the present disclosure, the cooling medium heat dissipation module includes:

[0021] a cooling medium storage portion configured to store the cooling medium flowing out of the cooling medium outlet; and

[0022] The cooling fan is configured to dissipate heat from the cooling medium stored in the cooling medium storage portion.

[0023] According to some embodiments of the present disclosure, the condensate treatment device includes a first cooling medium control module, which is configured to selectively connect the cooling medium outlet with the cooling medium inlet or the cooling medium treatment device so that the cooling medium flowing out of the cooling medium outlet can selectively flow to the cooling medium inlet or the cooling medium treatment device.

[0024] According to some embodiments of the present disclosure,

[0025] The first cooling medium control module includes a first three-way valve, the first three-way valve having a first valve port, a second valve port, and a third valve port, the first valve port of the first three-way valve being connected to the cooling medium outlet via a pipeline, the second valve port of the first three-way valve being connected to the cooling medium inlet via a pipeline, and the third valve port of the first three-way valve being connected to the cooling medium treatment device via a pipeline, the first cooling medium control module being configured to selectively connect the first valve port of the first three-way valve to one of the second valve port and the third valve port, so that the cooling medium outlet is connected to one of the cooling medium inlet and the cooling medium treatment device; and / or

[0026] The first cooling medium control module includes a first one-way valve and a second one-way valve, the inlet of the first one-way valve is connected to the cooling medium outlet, the outlet of the first one-way valve is connected to the cooling medium treatment device, the inlet of the second one-way valve is connected to the cooling medium outlet, and the outlet of the second one-way valve is connected to the cooling medium inlet, and the first cooling medium control module is configured to connect or disconnect the inlets and outlets of the first one-way valve and the second one-way valve so that the cooling medium outlet is connected to the cooling medium inlet and one of the cooling medium treatment device.

[0027] According to some embodiments of the present disclosure, the condensate treatment device includes a second cooling medium control module, which is configured to selectively connect at least one of the cooling supply device and the cooling medium outlet to the cooling medium inlet so that the cooling medium flowing out of at least one of the cooling supply device and the cooling medium outlet flows to the cooling medium inlet.

[0028] According to some embodiments of the present disclosure,

[0029] The second cooling medium control module includes a second three-way valve, the first three-way valve has a first valve port, a second valve port and a third valve port, the first valve port of the first three-way valve is connected to the cooling device via a pipeline, the second valve port of the first three-way valve is connected to the cooling medium outlet via a pipeline, and the third valve port of the first three-way valve is connected to the cooling medium inlet via a pipeline; and / or

[0030] The second cooling medium control module includes a third one-way valve and a pump, the inlet of the third one-way valve is connected to the cooling device, and the outlet of the third one-way valve is connected to the cooling medium inlet. The pump is arranged on the pipeline between the cooling medium outlet and the cooling medium inlet and is configured to pump the cooling medium from the cooling medium outlet to the cooling medium inlet. The second cooling medium control module is configured to turn the pump on or off, and to connect or disconnect the inlet and outlet of the third one-way valve, so that the cooling medium flowing out of at least one of the cooling device and the cooling medium outlet flows to the cooling medium inlet.

[0031] According to some embodiments of the present disclosure,

[0032] The condensate collection system for the tomato drying machine further includes a second water collector, the second water collector being connected to the at least one condensate source and configured to collect the condensate from the condensate source;

[0033] The condensate treatment device includes a condensate control module, which is configured to selectively connect the condensate source with the corresponding heat exchanger or the second water collector so that the condensate can selectively flow from the condensate source to the corresponding heat exchanger or the second water collector.

[0034] According to some embodiments of the present disclosure,

[0035] The condensate control module includes a third three-way valve, which has a first valve port, a second valve port and a third valve port. The first valve port of the third three-way valve is connected to the corresponding condensate source through a pipeline, the second valve port of the third three-way valve is connected to the second water collector through a pipeline, and the third valve port of the third three-way valve is connected to the corresponding heat exchanger through a pipeline. The condensate control module is configured to selectively connect the first valve port of the third three-way valve with one of its second valve port and the third valve port, so that the condensate source is connected to one of the second water collector and the heat exchanger; and / or

[0036] The condensate control module includes a fourth one-way valve and a fifth one-way valve, the inlet of the fourth one-way valve is connected to the condensate source, the outlet of the fourth one-way valve is connected to the second water collector, the inlet of the fifth one-way valve is connected to the condensate source, and the outlet of the fifth one-way valve is connected to the heat exchanger. The condensate control module is configured to connect or disconnect the inlets and outlets of the fourth one-way valve and the fifth one-way valve so that the condensate source is connected to one of the second water collector and the heat exchanger.

[0037] According to some embodiments of the present disclosure, the cooling medium is water, and the condensate collection system for the tow dryer further includes a cooling medium treatment device, which is disposed downstream of the at least one condensate treatment device along the flow direction of the cooling medium and is configured to perform physical and / or chemical treatment on the cooling medium from the heat exchanger.

[0038] The first water collector is connected to the second water collector and one of the cooling medium treatment device through a pipeline, so that the condensed water collected by the first water collector can be discharged to one of the second water collector and the cooling medium treatment device; and / or

[0039] The second water collector is connected to the cooling medium treatment device through a pipeline, so that the condensed water collected by the second water collector can be discharged to the cooling medium treatment device.

[0040] In the condensate collection system for the wire drying machine provided by the present invention, the condensate treatment device is arranged corresponding to the condensate source, and the condensate from different sources in the wire drying machine can be independently collected. Moreover, considering that the temperature of the condensate is usually still relatively high, the condensate can be heat-exchanged with the cooling medium in the heat exchanger to reduce the temperature of the condensate, which is beneficial to reducing the possibility of the condensate being vaporized during the collection process, and improving the problem of the vaporization of untreated condensate during the collection process affecting the measurement accuracy of the condensate amount, thereby helping to improve the data accuracy of the steam utilization efficiency calculation and heat exchange condition evaluation of the wire drying machine equipment.

[0041] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0043] Figure 1 This is a schematic structural diagram of a condensate collection system for a tofu drying machine according to some embodiments of the present disclosure.

[0044] Figure 2 for Figure 1 The structure diagram of one of the condensate collection devices of the condensate collection system of the tofu drying machine is shown.

[0045] Figure 3 Schematic diagram of the structure of the heat exchanger of some embodiments of the present disclosure.

[0046] In the accompanying drawings, the reference numerals represent:

[0047] 1. Condensate treatment device; 1A, first condensate treatment device; 1B, second condensate treatment device; 1C, third condensate treatment device;

[0048] 11. Condensate control module; 111. Third three-way valve; 1111. First valve port of the third three-way valve; 1112. Second valve port of the third three-way valve; 1113. Third valve port of the third three-way valve; 112. Fourth one-way valve; 113. Fifth one-way valve;

[0049] 12. Second cooling medium control module; 121. Second three-way valve; 1211. First valve port of the second three-way valve; 1212. Second valve port of the second three-way valve; 1213. Third valve port of the second three-way valve; 122. Pump; 123. Third one-way valve; 124. Switch;

[0050] 13. Condensate collection module; 131. Heat exchanger; 1311. Housing; 1312. Condensate pipeline; 132. First water collector; 133. Weighing device; 134. Flow meter; 135. Temperature sensor; 136. Human-machine interface; M1. Cooling medium inlet; M2. Cooling medium outlet; C1. Condensate inlet; C2. Condensate outlet;

[0051] 14. Cooling medium heat dissipation module; 141. Cooling medium storage unit; 142. Cooling fan; 143. First liquid level switch; 144. Second liquid level switch;

[0052] 15. First cooling medium control module; 151. First three-way valve; 1511. First valve port of the first three-way valve; 1512. Second valve port of the first three-way valve; 1513. Third valve port of the first three-way valve; 152. First one-way valve; 153. Second one-way valve;

[0053] 2. Condensate source; 2A. First condensate source; 2B. Second condensate source; 2C. Third condensate source; 21. On / off control valve;

[0054] 3. Cooling device;

[0055] 4. Second water collector;

[0056] 5. Cooling medium treatment device. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0058] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, these techniques, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, rather than as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0059] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0060] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0061] refer to Figures 1 to 3 Some embodiments of the present disclosure provide a condensate collection system for a tofu drying machine, comprising at least one condensate source 2, a cooling device 3, and at least one condensate treatment device 1.

[0062] At least one condensate source 2 is a device that generates condensate in the tow dryer. A cooling device 3 is configured to provide a cooling medium. At least one condensate treatment device 1 is provided corresponding to the at least one condensate source 2. The condensate treatment device 1 includes a heat exchanger 131 and a first water collector 132. The heat exchanger 131 is connected to the at least one condensate source 2 and configured to cool the condensate generated by the corresponding condensate source 2 using a cooling medium. The first water collector 132 is provided downstream of the heat exchanger 131 along the condensate flow direction and is configured to collect the cooled condensate.

[0063] The condensate water source 2 can be a steam pipeline for heating the cylinder wall of the tofu drying machine or a steam pipeline for heating to generate hot air, etc.

[0064] Optionally, the cooling medium is water, and the water source used by the cooling device 3 is the water source used daily at the tobacco cutting site.

[0065] Optionally, in order to meet the collection requirements, the number of condensate water sources 2 and condensate water treatment devices 1 can be two, three or more. Figure 1 The condensate treatment device 1 includes a first condensate treatment device 1A, a second condensate treatment device 1B and a third condensate treatment device 1C, and the condensate source 2 includes a first condensate source 2A, a second condensate source 2B and a third condensate source 2C which are respectively arranged corresponding to the first condensate treatment device 1A, the second condensate treatment device 1B and the third condensate treatment device 1C.

[0066] Optionally, an on-off control valve 21 may be provided on the pipeline between the condensate water source 2 and the corresponding condensate water treatment device 1 , and the on-off control valve 21 is configured to control whether the condensate water source 2 flows to the corresponding condensate water treatment device.

[0067] In the condensate collection system for the wire drying machine provided by the embodiment of the present disclosure, the condensate treatment device is arranged corresponding to the condensate source, and the condensate from different sources in the wire drying machine can be independently collected. Moreover, considering that the temperature of the condensate is usually still relatively high, the condensate can be heat-exchanged with the cooling medium in the heat exchanger to reduce the temperature of the condensate, which is beneficial to reducing the possibility of vaporization of the condensate during the collection process, and improving the problem of the vaporization of untreated condensate during the collection process affecting the measurement accuracy of the condensate amount, thereby helping to improve the data accuracy of the steam utilization efficiency calculation and heat exchange condition evaluation of the wire drying machine equipment.

[0068] The following takes one of the condensate treatment devices 1 as an example to further illustrate its structure and connection relationship with other components or devices.

[0069] In some embodiments, the condensate treatment device 1 includes a weighing device 133 . The weighing device 133 is configured to obtain the weight of the condensate in the first water collector 132 .

[0070] Optionally, the weighing device 133 may be a load cell disposed at the bottom of the first water collector 132. In some embodiments (not shown), the weighing device may not be included, and the first water collector may be detachably connected to the pipeline between the first water collector and the heat exchanger. When the weight of the condensed water in the first water collector needs to be weighed, the first water collector can be removed.

[0071] In some embodiments, the condensate treatment device 1 includes a flow meter 134 . The flow meter 134 is disposed on a pipeline between the heat exchanger 131 and the first water collector 132 and is configured to obtain a flow rate of condensate flowing from the heat exchanger 131 to the first water collector 132 .

[0072] After the condensate has cooled, the condensate volume can be accurately calculated based on the diameter of the flowmeter, the time it has been collected, and the condensate flow rate. The test results from the weighing device and the flowmeter can be compared with each other, helping to reduce measurement errors and improve the accuracy of condensate volume detection.

[0073] In some embodiments, the condensate treatment device 1 includes a temperature sensor 135 . The temperature sensor 135 is configured to obtain the temperature of the condensate flowing from the heat exchanger 131 to the first water collector 132 .

[0074] By setting a temperature sensor, the temperature of the condensed water after being cooled by the cooling medium in the heat exchanger can be detected, so that the cooling device can adjust the flow rate of the cooling medium according to the temperature of the condensed water flowing from the heat exchanger to the first water collector, thereby fully suppressing the vaporization of the condensed water during the collection process.

[0075] Optionally, to enable condensate weight detection, flow rate detection, and temperature detection based on independent collection of condensate from each condensate source, thereby further improving condensate collection accuracy, in some embodiments, the condensate treatment device 1 includes two or all of the aforementioned weighing device 133, flow meter 134, and temperature sensor 135. Optionally, the condensate treatment device 1 includes a human-machine interface 136 configured to display at least one of the following data: the weight of the condensate in the first manifold 132, the flow rate of the condensate flowing from the heat exchanger 131 to the first manifold 132, and the temperature of the condensate flowing from the heat exchanger 131 to the first manifold 132. The aforementioned heat exchanger 131, first manifold 132, weighing device 133, flow meter 134, temperature sensor 135, and human-machine interface 136 constitute the condensate collection module 13.

[0076] In some embodiments, reference Figure 2 and Figure 3Heat exchanger 131 includes a housing 1311 and a condensate pipe 1312. Housing 1311 is connected to cooling device 3. Condensate pipe 1312 is disposed within housing 1311 and connected at both ends to corresponding condensate source 2 and first manifold 132, respectively. A cavity for accommodating the cooling medium is formed between housing 1311 and condensate pipe 1312.

[0077] In some embodiments, reference Figure 2 and Figure 3 The condensate pipe 1312 is spiral.

[0078] By setting up a spiral condensate pipeline, the heat exchange area of ​​the heat exchanger can be increased, the heat exchange efficiency can be improved, the condensate can be fully cooled, and the possibility of condensate vaporization can be further reduced.

[0079] In some embodiments, reference Figure 2 The condensate collection system of the wire drying machine also includes a cooling medium treatment device 5, which is arranged downstream of at least one condensate treatment device 1 along the flow direction of the cooling medium and is configured to perform physical and / or chemical treatment on the cooling medium from the heat exchanger 131.

[0080] By providing a cooling medium treatment device, impurities introduced into the cooling medium during the heat exchange process can be removed, so that the cooling medium, such as cooling water, meets the discharge standards.

[0081] In some embodiments, reference Figure 2 The heat exchanger 131 has a cooling medium inlet M1 and a cooling medium outlet M2. The condensate treatment device 1 includes a cooling medium heat dissipation module 14. The cooling medium heat dissipation module 14 is connected to the cooling medium outlet M2 and is configured to dissipate heat from the cooling medium flowing out of the cooling medium outlet M2.

[0082] Optionally, refer to Figure 2 The shell 1311 is provided with a condensate inlet C1, a condensate outlet C2, a cooling medium inlet M1 and a cooling medium outlet M2. The condensate pipeline 1312 is connected to the corresponding condensate source 2 through the condensate inlet C1, the condensate pipeline 1312 is connected to the first water collector 132 through the condensate outlet C2, the cooling medium inlet M1 is connected to the cooling device, and the cooling medium outlet M2 is connected to the cooling medium heat dissipation module 14.

[0083] By setting up the cooling medium heat dissipation module 14, the temperature of the cooling medium can be lowered, which is beneficial to reducing the risk of damage to downstream pipes or devices caused by excessive cooling medium temperature, and also facilitates the reuse of the cooling medium or entering the cooling medium treatment device for treatment.

[0084] In some embodiments, reference Figure 2The condensate collection system of the tofu drying machine includes the above-mentioned cooling medium treatment device 5, and the condensate treatment device 1 includes the above-mentioned cooling medium heat dissipation module 14.

[0085] In some embodiments, reference Figure 2 The cooling medium heat dissipation module 14 includes a cooling medium storage unit 141 and a cooling fan 142. The cooling medium storage unit 141 is configured to store the cooling medium flowing out of the cooling medium outlet M2. The cooling fan 142 is configured to dissipate heat from the cooling medium stored in the cooling medium storage unit 141.

[0086] In some embodiments, reference Figure 2 The condensate treatment device 1 includes a first cooling medium control module 15, which is configured to selectively connect the cooling medium outlet M2 with the cooling medium inlet M1 or the cooling medium treatment device 5, so that the cooling medium flowing out of the cooling medium outlet M2 can selectively flow to the cooling medium inlet M1 or the cooling medium treatment device 5.

[0087] By setting up the first cooling medium control module, the cooling medium that has dissipated heat can flow back to the cooling medium inlet, which can be recycled and help reduce energy consumption; the cooling medium that has dissipated heat can also directly flow into the cooling medium processing device for processing.

[0088] In some embodiments, the first cooling medium control module 15 includes a first three-way valve 151, the first three-way valve 151 has a first valve port 1511, a second valve port 1512 and a third valve port 1513, the first valve port 1511 of the first three-way valve 151 is connected to the cooling medium outlet M2 through a pipeline, the second valve port 1512 of the first three-way valve 151 is connected to the cooling medium inlet M1 through a pipeline, and the third valve port 1513 of the first three-way valve 151 is connected to the cooling medium treatment device 5 through a pipeline. The first cooling medium control module 15 is configured to selectively connect the first valve port 1511 of the first three-way valve 151 with one of its second valve port 1512 and the third valve port 1513, so that the cooling medium outlet M2 is connected to one of the cooling medium inlet M1 and the cooling medium treatment device 5.

[0089] In some embodiments, the first cooling medium control module 15 includes a first one-way valve 152 and a second one-way valve 153, the inlet of the first one-way valve 152 is connected to the cooling medium outlet M2, the outlet of the first one-way valve 152 is connected to the cooling medium treatment device 5, the inlet of the second one-way valve 153 is connected to the cooling medium outlet M2, and the outlet of the second one-way valve 153 is connected to the cooling medium inlet M1. The first cooling medium control module 15 is configured to connect or disconnect the inlet and outlet of the first one-way valve 152 and the second one-way valve 153 so that the cooling medium outlet M2 is connected to one of the cooling medium inlet M1 and the cooling medium treatment device 5.

[0090] In some embodiments, reference Figure 2 The first cooling medium control module 15 includes a combination of the first three-way valve 151 , the first one-way valve 152 and the second one-way valve 153 .

[0091] Based on the first cooling medium control module of the above embodiment, the cooling medium outlet M2 can be connected to one of the cooling medium inlet M1 and the cooling medium treatment device 5 by changing the communication relationship of the valve ports of the first three-way valve 151, or by changing the on-off mode of the inlet and outlet of the first one-way valve 152 and the second one-way valve 153, so that the cooling medium flows from the cooling medium heat dissipation module 14 to the cooling medium inlet M1, thereby realizing the recycling of the cooling medium, or flows from the cooling medium heat dissipation module 14 to the cooling medium treatment device 5, and the cooling medium is treated to meet the discharge requirements.

[0092] In some embodiments, reference Figure 2 The condensate treatment device 1 includes a second cooling medium control module 12, which is configured to selectively connect at least one of the cooling device 3 and the cooling medium outlet M2 with the cooling medium inlet M1, so that the cooling medium flowing out of at least one of the cooling device 3 and the cooling medium outlet M2 flows to the cooling medium inlet M1.

[0093] By providing a second cooling medium control module, the cooling medium in the heat exchanger can be directly provided by the cooling device or recycled to reduce energy consumption.

[0094] In some embodiments, reference Figure 2 The second cooling medium control module 12 includes a second three-way valve 121. The first three-way valve 121 has a first valve port 1211, a second valve port 1212 and a third valve port 1213. The first valve port 1211 of the first three-way valve 121 is connected to the cooling device 3 through a pipeline, the second valve port 1212 of the first three-way valve 121 is connected to the cooling medium outlet M2 through a pipeline, and the third valve port 1213 of the first three-way valve 121 is connected to the cooling medium inlet M1 through a pipeline.

[0095] In some embodiments, reference Figure 2The second cooling medium control module 12 includes a third one-way valve 123 and a pump 122. The inlet of the third one-way valve 123 is connected to the cooling device 3, and the outlet of the third one-way valve 123 is connected to the cooling medium inlet M1. The pump 122 is arranged on the pipeline between the cooling medium outlet M2 and the cooling medium inlet M1 and is configured to pump the cooling medium from the cooling medium outlet M2 to the cooling medium inlet M1. The second cooling medium control module 12 is configured to open or close the pump 122 and connect or disconnect the inlet and outlet of the third one-way valve 123 so that the cooling medium flowing out of at least one of the cooling device 3 and the cooling medium outlet M2 flows to the cooling medium inlet M1.

[0096] Optionally, refer to Figure 2 The second cooling medium control module 12 includes a switch 124 for controlling the start or stop of the pump 122 .

[0097] In some embodiments, reference Figure 2 The second cooling medium control module 12 includes a combination of the second three-way valve 121 , the third one-way valve 123 and the pump 122 .

[0098] Based on the second cooling medium control module of the above embodiment, the cooling medium inlet M1 can be connected to at least one of the cooling device 3 and the cooling medium outlet M2 by changing the connection relationship of the valve ports of the second three-way valve 121, or by changing the opening and closing of the inlet and outlet of the third one-way valve 123, so that the cooling medium flowing out of the cooling medium outlet M2 flows back to the cooling medium inlet M1, or the cooling medium provided by the cooling device 3 is directly supplied to the cooling medium inlet M1.

[0099] Optionally, refer to Figure 2 The cooling medium heat dissipation module 14 includes a first liquid level switch 143 and a second liquid level switch 144 installed in the cooling medium storage portion 141. The installation position of the first liquid level switch 143 is higher than the installation position of the second liquid level switch 144. Based on the condensate collection system of the tow dryer having the first cooling medium control module 15 and the second cooling medium control module 12 in some embodiments, generally speaking, the flow rate of the cooling medium provided by the cooling device and the flow rate of the cooling medium returning from the cooling medium outlet M2 change dynamically based on factors such as the temperature of the condensate flowing into the first manifold 132. In this case, the cooling medium storage portion 141 can serve as a buffer for the cooling medium. The provision of the first liquid level switch 143 and the second liquid level switch 144 facilitates real-time monitoring of the buffering status of the cooling medium in the cooling medium storage portion 141.

[0100] In some embodiments, reference Figure 2The tow dryer condensate collection system further includes a second water collector 4, which is connected to at least one condensate source 2 and configured to collect condensate from the condensate source 2. The condensate treatment device 1 includes a condensate control module 11, which is configured to selectively connect the condensate source 2 to the corresponding heat exchanger 131 or the second water collector 4, so that condensate can flow from the condensate source 2 to the corresponding heat exchanger 131 or the second water collector 4.

[0101] By setting up a condensate control module, when the condensate volume needs to be measured, the condensate can flow to the heat exchanger for cooling. When the condensate volume does not need to be measured, the condensate can also flow directly into the second water collector for collection.

[0102] In some embodiments, reference Figure 2 The condensate control module 11 includes a third three-way valve 111, which has a first valve port 1111, a second valve port 1112 and a third valve port 1113. The first valve port 1111 of the third three-way valve 111 is connected to the corresponding condensate source 2 through a pipeline, the second valve port 1112 of the third three-way valve 111 is connected to the second water collector 4 through a pipeline, and the third valve port 1113 of the third three-way valve 111 is connected to the corresponding heat exchanger 131 through a pipeline. The condensate control module 11 is configured to selectively connect the first valve port 1111 of the third three-way valve 111 with one of its second valve port 1112 and the third valve port 1113, so as to connect the condensate source 2 with the second water collector 4 and one of the heat exchanger 131.

[0103] In some embodiments, reference Figure 2 The condensate control module 11 includes a fourth one-way valve 112 and a fifth one-way valve 113. The inlet of the fourth one-way valve 112 is connected to the condensate source 2, and the outlet of the fourth one-way valve 112 is connected to the second water collector 4. The inlet of the fifth one-way valve 113 is connected to the condensate source 2, and the outlet of the fifth one-way valve 113 is connected to the heat exchanger 131. The condensate control module 11 is configured to connect or disconnect the inlet and outlet of the fourth one-way valve 112 and the fifth one-way valve 113 so that the condensate source 2 is connected to one of the second water collector 4 and the heat exchanger 131.

[0104] In some embodiments, reference Figure 2 The condensate control module 11 includes a combination of the third three-way valve 111 , the fourth one-way valve 112 and the fifth one-way valve 113 .

[0105] Based on the condensate control module of the above embodiment, the condensate source 2 can be connected to the second water collector 4 and the heat exchanger 131 by changing the connection relationship of the valve ports of the third three-way valve 111, or by changing the connection and disconnection of the inlet and outlet of the fourth one-way valve 112 and the fifth one-way valve 113, so that the condensate flows from the condensate source 2 to the heat exchanger 131 and the first water collector 132, thereby realizing the cooling treatment of the condensate and the measurement of the condensate amount, or the condensate is directly discharged to the second water collector 4.

[0106] In some embodiments, reference Figure 2 The cooling medium is water. The condensate collection system of the tow drying machine also includes a cooling medium treatment device 5. The cooling medium treatment device 5 is arranged downstream of at least one condensate treatment device 1 along the flow direction of the cooling medium and is configured to perform physical and / or chemical treatment on the cooling medium from the heat exchanger 131.

[0107] After the condensate water volume is measured, in order to discharge the condensate water, in some embodiments, the first water collector 132 is connected to the second water collector 4 and one of the cooling medium treatment devices 5 through a pipeline, so that the condensate water collected by the first water collector 132 can be discharged to the second water collector 4 and one of the cooling medium treatment devices 5.

[0108] In some embodiments, reference Figure 2 The second water collector 4 is connected to the cooling medium treatment device 5 through a pipeline so that the condensed water collected by the second water collector 4 can be discharged to the cooling medium treatment device 5.

[0109] In the above embodiment, the condensed water collected by the second water collector can be processed together with the cooling water serving as the cooling medium in the cooling medium treatment device, which helps to simplify the system structure and improve the treatment efficiency.

[0110] The following combination Figures 1 to 3 , further illustrating the process of collecting condensate by the condensate collection system of the tofu drying machine in some embodiments of the present disclosure.

[0111] The condensate collection system of the tofu drying machine includes multiple condensate treatment devices 1, condensate sources 2 corresponding to the multiple condensate treatment devices, a cooling device 3, a second water collector 4 and a cooling medium treatment device 5. The cooling medium is water.

[0112] The condensate treatment device 1 includes a condensate control module 11, a second cooling medium control module 12, a condensate collection module 13, a cooling medium heat dissipation module 14, and a first cooling medium control module 15. An on-off control valve 21 is provided between the condensate source 2 and the condensate treatment device 1. The condensate control module 11 includes a third three-way valve 111, a fourth one-way valve 112, and a fifth one-way valve 113. The second cooling medium control module 12 includes a second three-way valve 121, a pump 122, a third one-way valve 123, and a switch 124. The condensate collection module 13 includes a heat exchanger 131, a first water collector 132, a weighing device 133, a flowmeter 134, a temperature sensor 135, and a human-machine interface 136. The heat exchanger 131 includes a housing 1311 and a condensate pipeline 1312. The housing 1311 has a cooling medium inlet M1, a cooling medium outlet M2, a condensate inlet C1, and a condensate outlet C2. The cooling medium heat dissipation module 14 includes a cooling medium storage unit 141 , a cooling fan 142 , a first liquid level switch 143 , and a second liquid level switch 144 . The first cooling medium control module 15 includes a first three-way valve 151 , a first check valve 152 , and a second check valve 153 .

[0113] The composition, structure and mutual connection relationship of the above-mentioned devices, modules or components can refer to the previous related description.

[0114] The first three-way valve, the second three-way valve, the third three-way valve, the first one-way valve, the second one-way valve, the third one-way valve, the fourth one-way valve, the fifth one-way valve and the on-off control valve mentioned above can all be solenoid valves.

[0115] Before collecting the condensed water, the electrical components of the condensed water collection system of the tow drying machine are in a non-powered and non-started state.

[0116] When condensate needs to be collected and measured, the electrical components in the tow dryer condensate collection system are powered on, and the on-off control valve 21 is opened to connect the pipeline between the condensate source 2 and the condensate treatment device 1. The pump 122 and cooling fan 142 can be powered on but not started, and the weighing device 133, flow meter 134, temperature sensor 135, human-machine interface 136, first liquid level switch 143, and second liquid level switch 144 can be in normal operation.

[0117] The cooling fan 142 is started. The first valve port 1511 and the second valve port 1512 of the first three-way valve 151 are connected, while the third valve port 1513 is disconnected. The first one-way valve 152 is closed to disconnect the pipeline between the cooling medium outlet M2 and the cooling medium processing device 5. The second one-way valve 153 is opened to connect the pipeline between the cooling medium outlet M2 and the cooling medium inlet M1. The cooling medium discharged from the cooling medium storage unit 141 flows to the cooling medium inlet M1.

[0118] The third one-way valve 123 is opened to connect the cooling device 3 and the cooling medium inlet M1, and the cooling medium flows from the cooling device 3 into the heat exchanger 131 to cool the condensed water.

[0119] The pump 122 is started by the switch 124 , and the pump 122 pumps the condensate from the cooling medium outlet M2 to the cooling medium inlet M1 .

[0120] The first valve port 1111 of the third three-way valve 111 is switched from being connected to the second valve port 1112 and disconnected from the third valve port 1113 to being connected to the third valve port 1113 and disconnected from the second valve port 1112. The fourth one-way valve 112 is closed to disconnect the pipeline between the condensate source 2 and the second manifold 4. The fifth one-way valve 113 is opened to connect the pipeline between the condensate source 2 and the heat exchanger 131. Condensate generated by the tow dryer flows from the condensate source 2 through the heat exchanger 131 to the first manifold 132.

[0121] During the condensation water collection process, the measured values ​​of the weighing device 133, the flow meter 134, and the temperature sensor 135, as well as the condensation water collection time, are monitored in real time according to specific measurement requirements. The condensation water collection time can be recorded through a human-machine interface with a timing function.

[0122] Wait for all the condensate remaining in the heat exchanger 131 and its upstream and downstream pipelines to flow into the second water collector 132, and record the final measurement results of the weighing device 133, flow meter 134, and temperature sensor 135 to obtain the amount of condensate.

[0123] The collected condensate is subsequently processed and analyzed according to the test requirements.

[0124] After the condensed water is collected, the third one-way valve 123 is closed to disconnect the pipeline between the cooling device 3 and the heat exchanger 131 .

[0125] The first valve port 1111 of the third three-way valve 111 is switched from a state disconnected from the second valve port 1112 and connected to the third valve port 1113 to a state disconnected from the third valve port 1113 and connected to the second valve port 1112. The fourth one-way valve 112 is opened to connect the pipeline between the condensate source 2 and the second water collector 4, and the fifth one-way valve 113 is closed to disconnect the pipeline between the condensate source 2 and the heat exchanger 131.

[0126] Wait for all the condensed water remaining in the heat exchanger 131 , the cooling medium storage unit 141 and its upstream and downstream pipelines to flow into the cooling medium treatment device 5 .

[0127] The pump 122 is turned off by the switch 124 and the cooling fan 142 is turned off.

[0128] The weighing device 133, the flow meter 134, the temperature sensor 135, the human-machine interface 136, the first liquid level switch 143 and the second liquid level switch 144 are powered off, and the condensate collection system of the tofu drying machine is restored to an inactive state.

[0129] The above-mentioned devices, modules or components can be flexibly arranged according to the actual conditions of the silk production site, and can also flexibly choose centralized control or local control methods. On the one hand, it can facilitate the control operations of production personnel and reduce the labor intensity of production personnel. On the other hand, considering the high temperature of condensate water, it can also reduce the risk of scalding operators by condensate water and its pipelines.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. A condensate collection system for a tofu drying machine, characterized in that: include: at least two condensate water sources (2), which are devices for generating condensate water in the fiber drying machine; A cooling device (3) configured to provide a cooling medium; and At least two condensate treatment devices (1) are provided corresponding to the at least two condensate sources (2), the condensate treatment devices (1) comprising a heat exchanger (131) and a first water collector (132), the heat exchanger (131) being connected to the condensate source (2) and being configured to cool the condensate generated by the corresponding condensate source (2) using the cooling medium, and the first water collector (132) being provided downstream of the heat exchanger (131) along the flow direction of the condensate and being configured to collect the cooled condensate; The condensate treatment device (1) includes a weighing device (133), a flow meter (134) and a temperature sensor (135); the weighing device (133) is configured to obtain the weight of the condensate in the first water collector (132); the flow meter (134) is arranged on the pipeline between the heat exchanger (131) and the first water collector (132) and is configured to obtain the flow rate of the condensate flowing from the heat exchanger (131) to the first water collector (132); and the temperature sensor (135) is configured to obtain the temperature of the condensate flowing from the heat exchanger (131) to the first water collector (132) so as to adjust the flow rate of the cooling medium according to the temperature of the condensate.

2. The condensate collection system for a tofu drying machine according to claim 1, characterized in that: The heat exchanger (131) comprises: A housing (1311) connected to the cooling device (3); and A condensate water pipeline (1312) is arranged in the shell (1311) and its two ends are respectively connected to the corresponding condensate water source (2) and the first water collector (132), and a cavity for accommodating the cooling medium is formed between the shell (1311) and the condensate water pipeline (1312).

3. The condensate collection system for a tofu drying machine according to claim 2, characterized in that: The condensate water pipeline (1312) is spiral-shaped.

4. The condensate collection system for a tofu drying machine according to any one of claims 1 to 3, characterized in that: The condensate collection system for the tow dryer further comprises a cooling medium treatment device (5), wherein the cooling medium treatment device (5) is arranged downstream of the at least two condensate treatment devices (1) along the flow direction of the cooling medium and is configured to perform physical treatment and / or chemical treatment on the cooling medium from the heat exchanger (131); and / or The heat exchanger (131) has a cooling medium inlet (M1) and a cooling medium outlet (M2), and the condensate treatment device (1) includes a cooling medium heat dissipation module (14). The cooling medium heat dissipation module (14) is connected to the cooling medium outlet (M2) and is configured to dissipate heat from the cooling medium flowing out of the cooling medium outlet (M2).

5. The condensate collection system for a tofu drying machine according to claim 4, characterized in that: The cooling medium heat dissipation module (14) comprises: a cooling medium storage portion (141) configured to store the cooling medium flowing out of the cooling medium outlet (M2); and The cooling fan (142) is configured to dissipate heat from the cooling medium stored in the cooling medium storage portion (141).

6. The condensate collection system for a tofu drying machine according to claim 4, characterized in that: The condensate treatment device (1) includes a first cooling medium control module (15), which is configured to selectively connect the cooling medium outlet (M2) to the cooling medium inlet (M1) or the cooling medium treatment device (5), so that the cooling medium flowing out of the cooling medium outlet (M2) can selectively flow to the cooling medium inlet (M1) or the cooling medium treatment device (5).

7. The condensate collection system for a tofu drying machine according to claim 6, characterized in that: The first cooling medium control module (15) comprises a first three-way valve (151), the first three-way valve (151) having a first valve port (1511), a second valve port (1512) and a third valve port (1513), the first valve port (1511) of the first three-way valve (151) being connected to the cooling medium outlet (M2) via a pipeline, the second valve port (1512) of the first three-way valve (151) being connected to the cooling medium inlet (M1) via a pipeline, and the third valve port (1513) of the first three-way valve (151) being connected to the cooling medium treatment device (5) via a pipeline, the first cooling medium control module (15) being configured to selectively connect the first valve port (1511) of the first three-way valve (151) to one of the second valve port (1512) and the third valve port (1513), so as to connect the cooling medium outlet (M2) to one of the cooling medium inlet (M1) and the cooling medium treatment device (5); and / or The first cooling medium control module (15) includes a first one-way valve (152) and a second one-way valve (153), wherein the inlet of the first one-way valve (152) is connected to the cooling medium outlet (M2), and the outlet of the first one-way valve (152) is connected to the cooling medium treatment device (5), the inlet of the second one-way valve (153) is connected to the cooling medium outlet (M2), and the outlet of the second one-way valve (153) is connected to the cooling medium inlet (M1), and the first cooling medium control module (15) is configured to connect or disconnect the inlets and outlets of the first one-way valve (152) and the second one-way valve (153) so that the cooling medium outlet (M2) is connected to one of the cooling medium inlet (M1) and the cooling medium treatment device (5).

8. The condensate collection system for a tofu drying machine according to claim 7, characterized in that: The condensate treatment device (1) includes a second cooling medium control module (12), which is configured to selectively connect at least one of the cooling device (3) and the cooling medium outlet (M2) to the cooling medium inlet (M1) so that the cooling medium flowing out of at least one of the cooling device (3) and the cooling medium outlet (M2) flows to the cooling medium inlet (M1).

9. The condensate collection system for a tofu drying machine according to claim 8, characterized in that: The second cooling medium control module (12) comprises a second three-way valve (121), the second three-way valve (121) having a first valve port (1211), a second valve port (1212) and a third valve port (1213), the first valve port (1211) of the second three-way valve (121) being connected to the cooling device (3) via a pipeline, the second valve port (1212) of the second three-way valve (121) being connected to the cooling medium outlet (M2) via a pipeline, and the third valve port (1213) of the second three-way valve (121) being connected to the cooling medium inlet (M1) via a pipeline; and / or The second cooling medium control module (12) includes a third one-way valve (123) and a pump (122), wherein the inlet of the third one-way valve (123) is connected to the cooling device (3), and the outlet of the third one-way valve (123) is connected to the cooling medium inlet (M1). The pump (122) is arranged on the pipeline between the cooling medium outlet (M2) and the cooling medium inlet (M1) and is configured to pump the cooling medium from the cooling medium outlet (M2) to the cooling medium inlet (M1). The second cooling medium control module (12) is configured to open or close the pump (122) and connect or disconnect the inlet and outlet of the third one-way valve (123) so that the cooling medium flowing out of at least one of the cooling device (3) and the cooling medium outlet (M2) flows to the cooling medium inlet (M1).

10. The condensate collection system for a tofu drying machine according to any one of claims 1 to 3, characterized in that: The condensate collection system for the tomato drying machine further comprises a second water collector (4), the second water collector (4) being connected to the at least two condensate sources (2) and being configured to collect the condensate from the condensate sources (2); The condensate treatment device (1) includes a condensate control module (11), which is configured to selectively connect the condensate source (2) to the corresponding heat exchanger (131) or the second water collector (4), so that the condensate can selectively flow from the condensate source (2) to the corresponding heat exchanger (131) or the second water collector (4).

11. The condensate collection system for a tofu drying machine according to claim 10, characterized in that: The condensate control module (11) comprises a third three-way valve (111), the third three-way valve (111) having a first valve port (1111), a second valve port (1112) and a third valve port (1113), the first valve port (1111) of the third three-way valve (111) being connected to the corresponding condensate source (2) via a pipeline, the second valve port (1112) of the third three-way valve (111) being connected to the second water collector (4) via a pipeline, The third valve port (1113) of the third three-way valve (111) is connected to the corresponding heat exchanger (131) via a pipeline, and the condensate control module (11) is configured to selectively connect the first valve port (1111) of the third three-way valve (111) to one of its second valve port (1112) and third valve port (1113), so as to connect the condensate source (2) to one of the second water collector (4) and the heat exchanger (131); and / or The condensate control module (11) includes a fourth one-way valve (112) and a fifth one-way valve (113), wherein the inlet of the fourth one-way valve (112) is connected to the condensate source (2), the outlet of the fourth one-way valve (112) is connected to the second water collector (4), the inlet of the fifth one-way valve (113) is connected to the condensate source (2), and the outlet of the fifth one-way valve (113) is connected to the heat exchanger (131), and the condensate control module (11) is configured to connect or disconnect the inlet and outlet of the fourth one-way valve (112) and the fifth one-way valve (113) so that the condensate source (2) is connected to one of the second water collector (4) and the heat exchanger (131).

12. The condensate collection system for a tofu drying machine according to claim 11, characterized in that: The cooling medium is water, and the condensate collection system for the tow drying machine further comprises a cooling medium treatment device (5), wherein the cooling medium treatment device (5) is arranged downstream of the at least two condensate treatment devices (1) along the flow direction of the cooling medium and is configured to perform physical treatment and / or chemical treatment on the cooling medium from the heat exchanger (131). The first water collector (132) is connected to the second water collector (4) and one of the cooling medium treatment devices (5) via a pipeline, so that the condensed water collected by the first water collector (132) can be discharged to one of the second water collector (4) and the cooling medium treatment device (5); and / or The second water collector (4) is connected to the cooling medium treatment device (5) via a pipeline, so that the condensed water collected by the second water collector (4) can be discharged to the cooling medium treatment device (5).

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