Intelligent heating control method, system and device based on tunnel washer

Abstract

The present invention discloses an intelligent heating control method, system and device based on a tunnel washer. The intelligent heating control method includes obtaining the current working state of the tunnel washer; when the tunnel washer is in the initial startup state, running the second heating cycle of the energy-saving heating device, heating the condenser and replenishing hot water for the heat storage tank until the condenser can produce steam, and then putting the fabrics in according to the washing program of the tunnel washer to perform the normal washing process; when the tunnel washer is in the normal operation state, adjusting the operating load of the heating system according to the steam volume requirements of the fourth and fifth bins of the tunnel washer; adjusting the heat exchange of the energy-saving recovery system according to the sewage discharge and water temperature of the eighth and ninth bins of the tunnel washer. The above-mentioned intelligent heating control method is a heating control based on the energy-saving transformation of the tunnel washer. By judging the working state of the tunnel washer and then adopting different operation modes, the best energy-saving effect can be achieved under the premise of ensuring heating.

Description

Technical Field

[0001] The present invention relates to the technical field of washing industry, and in particular to an intelligent heating control method, system and device based on a tunnel washer. Background Art

[0002] The tunnel washing machine series is referred to as "tunnel washing machine". Compared with traditional washing machines, this equipment adopts water circulation and filtration technology, which greatly reduces water consumption and steam consumption. It can save 50% of water, more than 40% of electricity, and 60% of manpower. Tunnel washing machine has superior performance and high reliability. The bottom transmission design can realize safe and reliable transmission of linens. The combination of single and double drums, high-strength ribs, and the optimal ratio design of transmission and washing chamber capacity create its powerful washing mechanical force and cleaning degree. At the same time, the double drum design is only used in places where detergent needs to be added, such as heating and rinsing, to reduce the number of mechanical parts and maintenance workload.

[0003] The washing principle of the tunnel washer is as follows: each chamber of the tunnel washer washes at the same time, and each chamber section can work according to the pre-wash, main wash, rinse, neutralization and other procedures according to different computer instructions, and convey at the same time. After the fabrics in each washing cage are washed for a set time, they are conveyed to the next washing cage at the same time, that is, the first chamber is pushed to the last chamber at a time, and the last chamber is sent to the press for dehydration. Fabric washing and squeezing and dehydration are carried out simultaneously, and the washed fabrics are sent to the first chamber and the last chamber is sent to the squeeze dryer at the same time, and the dehydrated fabrics are sent to the dryer for drying.

[0004] In the prior art, a heat exchange system and a tunnel washer connected to a main wash heat exchange device and a rinse heat exchange device are disclosed. The heat exchange device uses a main wash heat exchange device, a rinse heat exchange device and other structures to heat the steam generated by the boiler for two rounds, so that the thermal energy of the steam can achieve the best utilization efficiency. However, in fact, there is still a lot of thermal energy that can be utilized in the recovered hot water and the waste water after the tunnel washer, and the best energy-saving effect cannot be achieved. At the same time, if the water volume between the main wash heat exchange device and the rinse heat exchange device is not matched, it is easy to cause the temperature of one side to be too high or the temperature of the other side to be too low, making it difficult to achieve intelligent control. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide an intelligent heating control method based on a tunnel washer to solve the above-mentioned traditional problems.

[0006] A second object of the present invention is to provide an intelligent control system based on a tunnel washer.

[0007] A third object of the present invention is to provide a control device that adopts an intelligent heating control method.

[0008] One of the purposes of the present invention is achieved by the following technical solution:

[0009] An intelligent heating control method based on a tunnel washer, the tunnel washer comprising a washing body and an energy-saving heating device, the energy-saving heating device comprising an energy-saving recovery system and a heating system;

[0010] The intelligent heating control method comprises the following steps:

[0011] S1: Get the current working status of the washing machine;

[0012] S2: When the washing machine is in the initial start-up state, the second heating cycle of the energy-saving heating device is operated to heat the condenser and add hot water to the heat storage tank until the condenser can produce steam, and then according to the washing program of the washing machine, the fabric is put in and the normal washing process is performed;

[0013] S3: When the washing body is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body; the heat exchange of the energy-saving recovery system is adjusted according to the sewage discharge and water temperature of the eighth and ninth bins of the washing body;

[0014] S4: When the washing machine is in a standby state / fault state, within the set standby threshold, the heating system is operated at the lowest load. If the standby time exceeds the set standby threshold, the heating system is shut down.

[0015] S5: When the washing machine body is in the shutdown state, the energy-saving heating device is shut down.

[0016] Preferably, in step S2, the specific operations are:

[0017] Obtain the water temperature requirements of the fourth and fifth bins in the current washing body, the water temperature and liquid level of the condenser, the water temperature and liquid level of the heat storage tank, and the liquid level of the first return water tank. If the liquid level of the heat storage tank does not meet the requirements, add softened water to the condenser, and start the second heating cycle formed by connecting the compressor, condenser, throttling expansion valve, and second evaporator end to end;

[0018] When the water temperature of the condenser meets the water temperature requirement of the heat storage tank, the hot water delivery pump is started to replenish the hot water in the condenser to the heat storage tank; when the water level in the heat storage tank meets the requirement, the hot water delivery pump is stopped, and the second heating cycle is continued until the condenser can produce steam, and then the heat supply pump is started to supply hot water to the thirteenth warehouse;

[0019] When the first return water tank meets the water level requirement, the first return water pump is started to supply hot water to the first bin, and the steam supply valves of the fourth and fifth bins are opened. At this time, according to the washing program of the washing body, the fabrics are put in and the normal washing process is carried out.

[0020] Preferably, in step S3, the specific operation is: obtaining the steam volume requirements of the fourth and fifth bins in the current washing body, adjusting the operating load of the compressor and / or adjusting the water inlet of the condenser to adjust the high-temperature steam volume generated by the condenser;

[0021] The outlet water temperature of the first evaporator is obtained. When the outlet water temperature of the first evaporator is greater than the first set outlet water temperature, the refrigerant amount of the first evaporator is increased and the refrigerant amount of the second evaporator is reduced. Conversely, when the outlet water temperature of the first evaporator is less than the second set outlet water temperature, the refrigerant amount of the first evaporator is reduced and the refrigerant amount of the second evaporator is increased to ensure the waste heat recovery efficiency of the first evaporator to reach the optimal state.

[0022] The softened water outlet temperature of the heat recovery heat exchanger is obtained. When the softened water outlet temperature of the heat recovery heat exchanger is less than the third set outlet temperature, the softened water inlet amount of the heat recovery heat exchanger is reduced. Conversely, when the softened water outlet temperature of the heat recovery heat exchanger is greater than the fourth set outlet temperature, the softened water inlet amount of the heat recovery heat exchanger is increased.

[0023] Preferably, the first set water outlet temperature is 20-25°C, the second set water outlet temperature is 10-15°C, the third set water outlet temperature is 35-40°C, and the fourth set water outlet temperature is 50-55°C.

[0024] Preferably, in step S4, the standby threshold is set to 40 min-60 min.

[0025] Preferably, in step S5, the specific operation of the shutdown process of the energy-saving heating device is:

[0026] Stop the compressor, close the softened water inlet valve, stop the blower and heating pump, start the hot water delivery pump, transfer the hot water from the condenser to the heat storage tank, and after the liquid level of the condenser reaches the minimum level, stop the hot water delivery pump and wait for subsequent startup instructions.

[0027] Preferably, the washing body includes a pre-cleaning mechanism, a main cleaning mechanism, a rinsing neutralization mechanism and a softening mechanism connected in sequence; the pre-cleaning mechanism includes a first bin and a second bin; the main cleaning mechanism includes a third bin, a fourth bin, a fifth bin, a sixth bin, a seventh bin, an eighth bin and a ninth bin, the bottom of the fourth bin is provided with a first air distributor, the bottom of the fifth bin is provided with a second air distributor, the eighth bin is provided with a first drain pipe, and the ninth bin is provided with a second drain pipe; the rinsing neutralization mechanism includes a tenth bin, an eleventh bin, a twelfth bin and a thirteenth bin; the softening mechanism includes a fourteenth bin, a fifteenth bin and a sixteenth bin, the thirteenth bin is provided with a fourth water supply pipe, and the fourteenth bin is provided with a fifth water supply pipe.

[0028] Preferably, the energy-saving recovery system comprises a heat recovery heat exchanger, a heat storage tank and a heat supply pump. The water inlet of the heat exchange end of the heat recovery heat exchanger is used to be connected to the softened water supply pipe, and the water outlet of the heat exchange end of the heat recovery heat exchanger is connected to the heat storage tank; the water inlet of the heat supply end of the heat recovery heat exchanger is connected to the collecting pipe of the first drainage pipe and the second drainage pipe; the water outlet of the heat supply pump is connected to the fourth water supply pipe and the fifth water supply pipe respectively;

[0029] The heating system includes a compressor, a condenser, a throttling expansion valve, a first evaporator, a second evaporator, a blower and a hot water delivery pump. The water inlet of the heat exchange end of the condenser is used to be connected to the softened water supply pipe, and the steam outlet of the heat exchange end of the condenser is connected to the first air distributor and the second air distributor respectively; the air inlet of the heat exchange end of the second evaporator is connected to the blower, and the air outlet of the heat exchange end of the second evaporator is used to be connected to the air supply pipe; the first evaporator and the second evaporator are arranged in parallel, the water inlet of the heat exchange end of the first evaporator is connected to the water outlet of the heat supply end of the heat energy recovery heat exchanger, and the water outlet of the heat exchange end of the first evaporator is used to be connected to a sewage treatment device; a hot water discharge outlet is provided at the bottom of the condenser, the water inlet of the hot water delivery pump is connected to the hot water discharge outlet, and the water outlet of the hot water delivery pump is connected to a heat storage tank.

[0030] The second object of the present invention is achieved by adopting the following technical solution:

[0031] An intelligent heating control system based on a tunnel washer, comprising:

[0032] The acquisition module is used to obtain the current working status of the washing body;

[0033] The judgment and execution module is used to run the second heating cycle of the energy-saving heating device when the washing body is in the initial start-up state, heat the condenser and add hot water to the heat storage tank until the condenser can produce steam, and then put the fabric in according to the washing program of the washing body to perform the normal washing process;

[0034] When the washing body is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body; the heat exchange of the energy-saving recovery system is adjusted according to the sewage discharge and water temperature of the eighth and ninth bins of the washing body;

[0035] When the washing machine is in standby state / fault state, within the set standby threshold, the heating system is operated at the lowest load. If the standby time exceeds the set standby threshold, the heating system is shut down.

[0036] When the washing body is in the shutdown state, the energy-saving heating device is shut down.

[0037] The third object of the present invention is achieved by adopting the following technical solution:

[0038] An intelligent control device includes a storage device and a processor, wherein the storage device stores a program for implementing the above-mentioned intelligent heating control method; the processor loads the program stored in the storage device and executes the steps of the above-mentioned intelligent heating control method.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The intelligent heating control method of the present invention is a heating control method based on energy-saving transformation of a tunnel washer. By judging the working state of the washing body and then adopting different operating modes, the best energy-saving effect can be achieved under the premise of ensuring heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic structural diagram of a tunnel washer of the present invention;

[0042] Figure 2 This is a control logic diagram of the intelligent heating control method of the present invention.

[0043] In the figure: 10, washing body; 11, first water supply pipe; 12, second water supply pipe; 13, first drainage pipe; 14, third water supply pipe; 15, second drainage pipe; 16, third drainage pipe; 17, first return water tank; 18, first return water pump; 19, fourth water supply pipe; 20, fifth water supply pipe; 21, fourth drainage pipe; 22, second return water tank; 23, second return water pump; 24, fifth drainage pipe; 25, third return water tank; 26, third return water pump; 27, heat recovery heat exchanger; 28, heat storage tank; 29, heat supply pump; 30, compressor; 31, condenser; 32, throttling expansion valve; 33, first evaporator; 34, second evaporator; 35, blower; 36, hot water delivery pump. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements. Example

[0047] See also Figure 1 , is a tunnel washer of this embodiment, used for washing fabrics. Specifically, the tunnel washer includes a washing body 10 and an energy-saving heating device connected to the washing body 10. The washing body 10 is used for washing fabrics, and the energy-saving heating device is used for recovering heat from the washing body 10 and providing heat energy for the washing body 10.

[0048] The washing body 10 includes a pre-cleaning mechanism, a main cleaning mechanism, a rinsing and neutralizing mechanism and a softening mechanism connected in sequence. The pre-cleaning mechanism includes a first bin and a second bin, and a first water supply pipe 11 is provided at the feed of the first bin. The main cleaning mechanism includes a third bin, a fourth bin, a fifth bin, a sixth bin, a seventh bin, an eighth bin and a ninth bin, and a first air distributor (not shown) is provided at the bottom of the fourth bin, and a second air distributor (not shown) is provided at the bottom of the fifth bin. The eighth bin is provided with a second water supply pipe 12 and a first drain pipe 13, and the ninth bin is provided with a third water supply pipe 14 and a second drain pipe 15. The rinsing and neutralizing mechanism includes a tenth bin, an eleventh bin, a twelfth bin and a thirteenth bin, and the tenth bin is provided with a third drain pipe 16, a first return water tank 17 connected to the third drain pipe 16 and a first return water pump 18 connected to the first return water tank 17, and the water outlet of the first return water pump 18 is connected to the first water supply pipe 11 of the first bin. Since the water temperature of this part of water is still relatively high, this part of the rinsed water is transported to the first bin for reuse. The thirteenth warehouse is provided with a fourth water supply pipe 19. The compliant mechanism includes the fourteenth warehouse, the fifteenth warehouse and the sixteenth warehouse. The fourteenth warehouse is provided with a fifth water supply pipe 20, a fourth drainage pipe 21, a second return water tank 22 connected to the fourth drainage pipe 21 and a second return water pump 23 connected to the second return water tank 22. The outlet of the second return water pump 23 is connected to the second water supply pipe 12 of the eighth warehouse, and this part of the water is transported to the eighth warehouse for reuse. The fifteenth and sixteenth warehouses both adopt the squeezing, dehydration and drying process. The sixteenth warehouse is provided with a fifth drainage pipe 24, a third return water tank 25 connected to the fifth drainage pipe 24 and a third return water pump 26 connected to the third return water tank 25. The outlet of the third return water pump 26 is connected to the third water supply pipe 14 of the ninth warehouse. The water squeezed out from the sixteenth warehouse is collected through the third return water tank 25, and then transported to the ninth warehouse through the third return water pump 26 for reuse.

[0049] In this embodiment, during the cleaning process, the main washing liquid and emulsifier are added to the first chamber, the emulsifier and alkaline auxiliary agent are added to the second chamber, the alkaline auxiliary agent and oxygen bleaching liquid are added to the third chamber, the neutralizer is added to the thirteenth chamber, and the softener or neutralizer is added to the fourteenth chamber.

[0050] The energy-saving heating device includes an energy-saving recovery system and a heating system. The energy-saving recovery system includes a heat recovery heat exchanger 27, a heat storage tank 28 and a heat pump 29. The water inlet of the heat exchange end of the heat recovery heat exchanger 27 is used to be connected to the softened water supply pipe, and the water outlet of the heat exchange end of the heat recovery heat exchanger 27 is connected to the heat storage tank 28, and the hot water after heat exchange is stored in the heat storage tank 28 for later use. The water inlet of the heat supply end of the heat recovery heat exchanger 27 is connected to the collection pipe of the first drainage pipe 13 and the second drainage pipe 15, and the water outlet of the heat supply end of the heat recovery heat exchanger 27 is connected to the energy-saving recovery system, and the remaining heat energy of the wastewater is used to heat the refrigerant of the energy-saving recovery system, so as to further recover its heat energy. The water outlet of the heat pump 29 is respectively connected to the fourth water supply pipe 19 of the thirteenth warehouse and the fifth water supply pipe 20 of the fourteenth warehouse, providing clean hot water for these two warehouses, which is convenient for later cleaning.

[0051] The heating system includes a compressor 30, a condenser 31, a throttling expansion valve 32, a first evaporator 33, a second evaporator 34 and a blower 35. The water inlet of the heat exchange end of the condenser 31 is used to be connected to the softened water supply pipe, and the steam outlet of the heat exchange end of the condenser 31 is respectively connected to the first air distributor of the fourth warehouse and the second air distributor of the fifth warehouse to provide them with high-temperature steam. The first evaporator 33 and the second evaporator 34 are arranged in parallel, and the water inlet of the heat exchange end of the first evaporator 33 is connected to the water outlet of the heat supply end of the heat recovery heat exchanger 27. The water outlet of the heat exchange end of the first evaporator 33 is used to be connected to a sewage treatment device, and the sewage is discharged to the sewage treatment device, treated, and then discharged. The air inlet of the heat exchange end of the second evaporator 34 is connected to the blower 35, and the air outlet of the heat exchange end of the second evaporator 34 is used to be connected to the air supply duct, which can provide cooling air for production workshops, canteens, dormitories, etc. The heat energy of the first evaporator 33 is preferentially utilized for heat exchange, and then the corresponding heat exchange capacity of the second evaporator 34 is configured according to the inlet refrigerant temperature requirement of the compressor 30. If the cooling effect of the air supply duct is insufficient, other refrigeration equipment is configured according to demand. It can be understood that the compressor 30, the condenser 31, the throttling expansion valve 32, and the first evaporator 33 are connected end to end to form a first heating cycle, and the compressor 30, the condenser 31, the throttling expansion valve 32, and the second evaporator 34 are connected end to end to form a second heating cycle. The heating cycle is filled with refrigerant, such as R245fa, R134a, R22, R142b, R515B, R1233zd, R141B, R407c, R410a, R32, etc., which can be used individually or in combination as needed, such as R22+R142b, R22+R245fa, R32+R515B, R32+R141B, etc., which will not be repeated here.

[0052] In some embodiments, the steam outlet holes of the first air distributor and the second air distributor are both arranged downward, sideways or upward. Optimally, the steam outlet holes of the first air distributor and the second air distributor are both arranged downward to avoid spraying on the fabric and causing other effects on the fabric.

[0053] In the above embodiments, the temperature of the first warehouse is 40℃-50℃; the temperature of the fourth warehouse is 60℃-80℃; the temperature of the fifth warehouse is 60℃-80℃; the temperature of the eighth warehouse is 50℃-60℃; the temperature of the ninth warehouse is 50℃-60℃; the temperature of the thirteenth warehouse is 40℃-50℃; and the temperature of the fourteenth warehouse is 40℃-50℃.

[0054] In another embodiment, the steam supply temperature of the steam outlet at the heat exchange end of the condenser 31 is 100°C-150°C. Preferably, the steam supply temperature of the steam outlet at the heat exchange end of the condenser 31 is 110°C-120°C to avoid the influence of high temperature on the fabric.

[0055] In other embodiments, when the water pressure in the first drain pipe 13 and the second drain pipe 15 is insufficient to be transported to the heat recovery heat exchanger 27 and the second evaporator 34, a water pump can be added to the first drain pipe 13 and the second drain pipe 15 to increase the transport power through the action of the water pump. When the water volume of other water supply pipes is insufficient (such as when starting), fresh softened water can be appropriately added to enable the device to operate normally.

[0056] In this embodiment, the condenser 31, the heat recovery heat exchanger 27, and the first evaporator 33 are all shell and tube heat exchangers, and the second evaporator 34 is a spiral tube heat exchanger. The spiral tube heat exchanger is made of one or more groups of spirally wound tubes placed in a shell. The refrigerant passes through the spiral tubes, and the air passes through the inside of the shell. Heat is exchanged through the wall of the spiral tube to improve the heat exchange effect between the refrigerant and the air. Preferably, the condenser 31 adopts the structure of a condensation and gasification integrated device, so that steam can be directly produced from a device without the need for a superheater. The specific structure is the content of the prior art and will not be repeated here.

[0057] In the above equipment, corresponding control valves and detection instruments are installed according to needs to monitor and control them so that they can provide suitable temperature and related operations for washing.

[0058] In other embodiments, in order to facilitate initial startup or startup after parking, a hot water outlet is provided at the bottom of the condenser 31, and the heating system also includes a hot water delivery pump 36, the water inlet of the hot water delivery pump 36 is connected to the hot water outlet, and the water outlet of the hot water delivery pump 36 is connected to the heat storage tank 28. When the heat storage tank 28 is insufficient or has no hot water, the hot water delivery pump 36 can be started to deliver the hot water in the condenser 31 to the heat storage tank 28.

[0059] The principle of the tunnel washer in this embodiment is:

[0060] The water discharged from the tenth bin is transported to the first bin to pre-clean the fabrics. The fabrics are washed from the first bin to the ninth bin in sequence according to the control program of the tunnel washer. In the fourth bin and the fifth bin, the heat of the high-temperature refrigerant is exchanged by the condenser 31 to prepare appropriate high-temperature steam, which is then transported to the fourth bin and the fifth bin. The steam is then evenly sprayed by the air distributor to heat the water in the bin. When the fabrics are transported to the eighth bin and the ninth bin, they are mixed with the water discharged from the fourteenth bin and the sixteenth bin to wash the fabrics in the bin. The sewage after cleaning is discharged through the drain pipe, and the fresh / purified softened water is heated by the heat recovery heat exchanger 27, and then stored in the heat storage tank 28, and the stored hot water is transported to the thirteenth and fourteenth warehouses as needed; from the tenth to the thirteenth warehouses, the flow is countercurrent, and the cleaning hot water is input from the water inlet pipe of the thirteenth warehouse to rinse the fabric in countercurrent, and then flows out from the drain pipe of the tenth warehouse; the last rinse is carried out in the fourteenth warehouse, and then the pressing, dehydration and drying process is used in the fifteenth and sixteenth warehouses to dehydrate the fabric. Example

[0061] See also Figure 2 , is an intelligent heating control method based on a tunnel washer in this embodiment, the tunnel washer includes a washing body 10 and an energy-saving heating device connected to the washing body 10, the energy-saving heating device includes an energy-saving recovery system and a heating system, and the intelligent heating control method includes the following steps:

[0062] S1: Obtain the current working status of the washing body 10;

[0063] In this step, the working state includes the initial startup state, the normal operation state, the standby state, the fault state and the shutdown state. According to the different states of the washing body 10, the hot water condition of the energy-saving heating device is adjusted to achieve the best energy-saving effect.

[0064] S2: When the washing body 10 is in the initial startup state, the second heating cycle formed by the compressor 30, condenser 31, throttling expansion valve 32 and second evaporator 34 of the energy-saving heating device is operated to heat the condenser 31 and add hot water to the heat storage tank 28 until the condenser 31 can produce steam, and then according to the washing program of the washing body 10, the fabric is put in and the normal washing process is performed.

[0065] The specific operation is: obtaining the water temperature requirements of the fourth and fifth bins in the current washing body 10, the water temperature and liquid level of the condenser 31, the water temperature and liquid level of the heat storage tank 28, and the liquid level of the first return water tank 17; if the liquid level of the heat storage tank 28 does not meet the requirements, add softened water to the condenser 31, and start the second heating cycle formed by connecting the compressor 30, the condenser 31, the throttling expansion valve 32, and the second evaporator 34 end to end; when the water temperature of the condenser 31 meets the water temperature requirement of the heat storage tank 28, start the hot water delivery pump 36 , the hot water in the condenser 31 is replenished into the heat storage tank 28; when the water level of the heat storage tank 28 meets the requirement, the hot water delivery pump 36 is stopped, and the second heating cycle is continued to be started until the condenser 31 can produce steam, and then the heat supply pump 29 is started to supply hot water to the thirteenth bin. When the first return water tank 17 meets the water level requirement, the first return water pump 18 is started to supply hot water to the first bin, and the steam supply valves of the fourth bin and the fifth bin are opened. At this time, according to the washing program of the washing body 10, the fabrics are put in and the normal washing process is carried out.

[0066] In this step, the initial start state refers to the state in which the washing body 10 is started at the initial start or after stopping. If it is the initial start state, some equipment such as the washing body 10 and the heat storage tank 28 are not filled with hot water, and hot water needs to be filled before washing to facilitate the washing work. If it is the state of starting after stopping, most equipment contains hot water, such as the heat storage tank 28, so there is no need to do a large heating treatment. If the liquid level of the heat storage tank 28 meets the requirements, there is no need to start the water replenishment action, and directly wait for the condenser 31 to produce steam, and then the next operation can be carried out. The power of the compressor 30 is automatically adjusted according to the steam temperature requirement of the condenser 31. The normal washing process is the operating principle of the tunnel washing machine in Example 1. In this embodiment, the thresholds such as the liquid level of the heat storage tank 28, the water temperature of the condenser 31, the water level of the first return water tank 17, and the steam temperature of the condenser 31 are all set according to the specific situation, and will not be repeated here. In the second evaporator 34 , the blower 35 is started to heat the second evaporator 34 and deliver the cold air into the air duct.

[0067] S3: When the washing body 10 is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body 10; the heat exchange amount of the energy-saving recovery system is adjusted according to the sewage discharge and water temperature of the eighth and ninth bins of the washing body 10.

[0068] The specific operation is as follows: obtaining the steam volume requirements of the fourth and fifth bins in the current washing body 10, adjusting the operating load of the compressor 30 and / or adjusting the water inlet of the condenser 31 to adjust the high-temperature steam volume generated by the condenser 31; obtaining the outlet water temperature of the first evaporator 33, when the outlet water temperature of the first evaporator 33 is greater than the first set outlet water temperature, increasing the refrigerant volume of the first evaporator 33 and reducing the refrigerant volume of the second evaporator 34; conversely, when the outlet water temperature of the first evaporator 33 is less than the second set outlet water temperature, Reduce the amount of refrigerant in the first evaporator 33 and increase the amount of refrigerant in the second evaporator 34 to ensure the waste heat recovery efficiency of the first evaporator 33 and reach the optimal state; obtain the softened water outlet temperature of the heat recovery heat exchanger 27. When the softened water outlet temperature of the heat recovery heat exchanger 27 is lower than the third set outlet temperature, reduce the softened water inlet amount of the heat recovery heat exchanger 27. Conversely, when the softened water outlet temperature of the heat recovery heat exchanger 27 is higher than the fourth set outlet temperature, increase the softened water inlet amount of the heat recovery heat exchanger 27.

[0069] In this step, the normal operating state means that the equipment does not have any faults or abnormal conditions during operation, and normal heating is the main mode. The method for adjusting the operating load of the compressor 30 is to adjust it according to the program of the compressor 30. For example, when the steam temperature is low, increase the compression load to increase the refrigerant temperature. When the steam temperature is high, reduce the compression load to reduce the refrigerant temperature. The specific adjustment method will not be repeated here. Reduce the water intake of the condenser 31 so that under the same amount of heat, a small amount of water can absorb more heat, making it easier to form steam. Similarly, increase the water intake of the condenser 31 so that the condenser 31 can reduce the steam output and store energy at the same time. In one embodiment, the first set water outlet temperature is 20-25°C, such as 20°C, 21°C, 22°C, 23°C, 24°C, and 25°C; the second set water outlet temperature is 10-15°C, such as 10°C, 11°C, 12°C, 13°C, 14°C, and 15°C. This temperature range can prevent the water temperature in the first evaporator 33 from being too low and freezing, so that the equipment can operate normally; the third set water outlet temperature is 35-40°C, such as 35°C, 36°C, 37°C, 38°C, 39°C, and 40°C; the fourth set water outlet temperature is 50-55°C, such as 50°C, 51°C, 52°C, 54°C, and 55°C; for the adjustment of the above temperatures, the adjustment range of the valve is 1%-5% each time within every 30 seconds, such as 1%, 2%, 3%, 4%, and 5%, so as to achieve a fine-tuning state.

[0070] S4: When the washing body 10 is in the standby state / fault state, within the set standby threshold, the heating system is operated at the minimum load. If the standby time exceeds the set standby threshold, the heating system is shut down.

[0071] In this step, the standby state means that the equipment is in standby state, waiting for the next washing instruction. Most of the equipment contains hot water, such as the heat storage tank 28 stores hot water, so no large heating treatment is required. The minimum load of the heating system is determined by the minimum load requirements of different compressors 30. The requirements of different models of compressors 30 are different, which will not be repeated here. In this embodiment, the standby threshold is set to 40min-60min, such as 40min, 43min, 45min, 48min, 50min, 53min, 55min, 58min, 60min. Similarly, the fault state means that the equipment has a fault and cannot work normally. At this time, it is shut down for maintenance. Most of the equipment contains hot water, such as the heat storage tank 28 stores hot water, so no large heating treatment is required. The shutdown process of the heating system is to stop the operation of the compressor 30, as well as other safety operations, and wait for subsequent startup instructions.

[0072] S5: When the washing body 10 is in the shutdown state, the energy-saving heating device is shut down.

[0073] In this step, the shutdown state means that the device has been turned off and is no longer performing any work.

[0074] In one embodiment, the specific operation of the shutdown process of the energy-saving heating device is:

[0075] Stop the operation of the compressor 30, close the softened water inlet valve, stop the blower 35 and the heat pump 29, start the hot water delivery pump 36, and transfer the hot water from the condenser 31 to the heat storage tank 28. After the liquid level of the condenser 31 reaches the minimum liquid level, stop the hot water delivery pump 36 and wait for subsequent startup instructions.

[0076] In one embodiment, the washing body 10 includes a pre-cleaning mechanism, a main cleaning mechanism, a rinsing and neutralizing mechanism and a softening mechanism connected in sequence; the pre-cleaning mechanism includes a first bin and a second bin; the main cleaning mechanism includes a third bin, a fourth bin, a fifth bin, a sixth bin, a seventh bin, an eighth bin and a ninth bin, the bottom of the fourth bin is provided with a first air distributor, the bottom of the fifth bin is provided with a second air distributor, the eighth bin is provided with a first drain pipe 13, and the ninth bin is provided with a second drain pipe 15; the rinsing and neutralizing mechanism includes a tenth bin, an eleventh bin, a twelfth bin and a thirteenth bin; the softening mechanism includes a fourteenth bin, a fifteenth bin and a sixteenth bin, the thirteenth bin is provided with a fourth water supply pipe 19, and the fourteenth bin is provided with a fifth water supply pipe 20.

[0077] The energy-saving recovery system includes a heat recovery heat exchanger 27, a heat storage tank 28 and a heat supply pump 29. The water inlet of the heat exchange end of the heat recovery heat exchanger 27 is used to be connected to the softened water supply pipe, and the water outlet of the heat exchange end of the heat recovery heat exchanger 27 is connected to the heat storage tank 28; the water inlet of the heat supply end of the heat recovery heat exchanger 27 is connected to the collecting pipe of the first drainage pipe 13 and the second drainage pipe 15; the water outlet of the heat supply pump 29 is respectively connected to the fourth water supply pipe 19 and the fifth water supply pipe 20;

[0078] The heating system includes a compressor 30, a condenser 31, a throttling expansion valve 32, a first evaporator 33, a second evaporator 34, a blower 35 and a hot water delivery pump 36. The water inlet of the heat exchange end of the condenser 31 is used to be connected to the softened water supply pipe, and the steam outlet of the heat exchange end of the condenser 31 is connected to the first air distributor and the second air distributor respectively; the air inlet of the heat exchange end of the second evaporator 34 is connected to the blower 35, and the air outlet of the heat exchange end of the second evaporator 34 is used to be connected to the air supply pipeline; the first evaporator 33 and the second evaporator 34 are arranged in parallel, the water inlet of the heat exchange end of the first evaporator 33 is connected to the water outlet of the heat supply end of the heat energy recovery heat exchanger 27, and the water outlet of the heat exchange end of the first evaporator 33 is used to be connected to the sewage treatment device; a hot water outlet is provided at the bottom of the condenser 31, the water inlet of the hot water delivery pump 36 is connected to the hot water outlet, and the water outlet of the hot water delivery pump 36 is connected to the heat storage tank 28. Example

[0079] An intelligent heating control system based on a tunnel washer, comprising:

[0080] A collection module, used to obtain the current working status of the washing body 10;

[0081] The judgment and execution module is used to run the second heating cycle of the energy-saving heating device when the washing body 10 is in the initial start-up state, heat the condenser 31 and add hot water to the heat storage tank 28 until the condenser 31 can produce steam, and then put the fabric in according to the washing program of the washing body 10 to perform the normal washing process;

[0082] When the washing body 10 is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body 10; the heat exchange of the energy-saving recovery system is adjusted according to the sewage discharge volume and water temperature of the eighth and ninth bins of the washing body 10;

[0083] When the washing machine body 10 is in a standby state / fault state, within the set standby threshold, the heating system is operated at the lowest load. If the standby time exceeds the set standby threshold, the heating system is shut down.

[0084] When the washing body 10 is in the off state, the shutdown process of the energy-saving heating device is performed. Example

[0085] An intelligent control device includes a storage device and a processor, wherein the storage device stores a program for implementing any of the aforementioned intelligent heating control methods; the processor loads the program stored in the storage device and executes the steps of any of the aforementioned intelligent heating control methods.

[0086] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the system of the present invention, the physical devices corresponding to these modules can be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0087] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An intelligent heating control method based on a tunnel washer, characterized in that: The tunnel washer comprises a washing body and an energy-saving heating device, and the energy-saving heating device comprises an energy-saving recovery system and a heating system; The intelligent heating control method comprises the following steps: S1: Get the current working status of the washing machine; S2: When the washing machine is in the initial start-up state, the second heating cycle of the energy-saving heating device is operated to heat the condenser and add hot water to the heat storage tank until the condenser can produce steam, and then according to the washing program of the washing machine, the fabric is put in and the normal washing process is performed; S3: When the washing body is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body; the heat exchange of the energy-saving recovery system is adjusted according to the sewage discharge and water temperature of the eighth and ninth bins of the washing body; S4: When the washing machine is in a standby state / fault state, within the set standby threshold, the heating system is operated at the lowest load. If the standby time exceeds the set standby threshold, the heating system is shut down. S5: When the washing machine body is in the shutdown state, the energy-saving heating device is shut down; In step S2, the specific operations are: Obtain the water temperature requirements of the fourth and fifth bins in the current washing body, the water temperature and liquid level of the condenser, the water temperature and liquid level of the heat storage tank, and the liquid level of the first return water tank. If the liquid level of the heat storage tank does not meet the requirements, add softened water to the condenser, and start the second heating cycle formed by connecting the compressor, condenser, throttling expansion valve, and second evaporator end to end; When the water temperature of the condenser meets the water temperature requirement of the heat storage tank, the hot water delivery pump is started to replenish the hot water in the condenser to the heat storage tank; when the water level in the heat storage tank meets the requirement, the hot water delivery pump is stopped, and the second heating cycle is continued until the condenser can produce steam, and then the heat supply pump is started to supply hot water to the thirteenth warehouse; When the first return water tank meets the water level requirement, the first return water pump is started to supply hot water to the first bin, and the steam supply valves of the fourth and fifth bins are opened. At this time, according to the washing program of the washing body, the fabrics are put in and the normal washing process is carried out.

2. The intelligent heating control method based on tunnel washing according to claim 1 is characterized in that: In step S3, the specific operation is: obtaining the steam volume requirements of the fourth and fifth bins in the current washing body, adjusting the operating load of the compressor and / or adjusting the water inlet of the condenser to adjust the high-temperature steam volume generated by the condenser; The outlet water temperature of the first evaporator is obtained. When the outlet water temperature of the first evaporator is greater than the first set outlet water temperature, the refrigerant amount of the first evaporator is increased and the refrigerant amount of the second evaporator is reduced. Conversely, when the outlet water temperature of the first evaporator is less than the second set outlet water temperature, the refrigerant amount of the first evaporator is reduced and the refrigerant amount of the second evaporator is increased to ensure the waste heat recovery efficiency of the first evaporator to reach the optimal state. The softened water outlet temperature of the heat recovery heat exchanger is obtained. When the softened water outlet temperature of the heat recovery heat exchanger is less than the third set outlet temperature, the softened water inlet amount of the heat recovery heat exchanger is reduced. Conversely, when the softened water outlet temperature of the heat recovery heat exchanger is greater than the fourth set outlet temperature, the softened water inlet amount of the heat recovery heat exchanger is increased.

3. The intelligent heating control method based on tunnel washing according to claim 2 is characterized in that: The first setting water outlet temperature is 20-25°C, the second setting water outlet temperature is 10-15°C, the third setting water outlet temperature is 35-40°C, and the fourth setting water outlet temperature is 50-55°C.

4. The intelligent heating control method based on tunnel washer according to claim 1, characterized in that: In step S4, the standby threshold is set to 40 min-60 min.

5. The intelligent heating control method based on tunnel washer according to claim 1, characterized in that: In step S5, the specific operation of the shutdown process of the energy-saving heating device is as follows: Stop the compressor, close the softened water inlet valve, stop the blower and heating pump, start the hot water delivery pump, transfer the hot water from the condenser to the heat storage tank, and after the liquid level of the condenser reaches the minimum level, stop the hot water delivery pump and wait for subsequent startup instructions.

6. The intelligent heating control method based on tunnel washer according to claim 1, characterized in that: The washing body includes a pre-cleaning mechanism, a main cleaning mechanism, a rinsing and neutralizing mechanism and a softening mechanism which are connected in sequence; the pre-cleaning mechanism includes a first bin and a second bin; the main cleaning mechanism includes a third bin, a fourth bin, a fifth bin, a sixth bin, a seventh bin, an eighth bin and a ninth bin, the bottom of the fourth bin is provided with a first air distributor, the bottom of the fifth bin is provided with a second air distributor, the eighth bin is provided with a first drain pipe, and the ninth bin is provided with a second drain pipe; the rinsing and neutralizing mechanism includes a tenth bin, an eleventh bin, a twelfth bin and a thirteenth bin; the softening mechanism includes a fourteenth bin, a fifteenth bin and a sixteenth bin, the thirteenth bin is provided with a fourth water supply pipe, and the fourteenth bin is provided with a fifth water supply pipe.

7. The intelligent heating control method based on tunnel washing according to claim 6 is characterized in that: The energy-saving recovery system comprises a heat recovery heat exchanger, a heat storage tank and a heat supply pump. The water inlet of the heat exchange end of the heat recovery heat exchanger is used to be connected to the softened water supply pipe, and the water outlet of the heat exchange end of the heat recovery heat exchanger is connected to the heat storage tank; the water inlet of the heat supply end of the heat recovery heat exchanger is connected to the collecting pipe of the first drainage pipe and the second drainage pipe; the water outlet of the heat supply pump is connected to the fourth water supply pipe and the fifth water supply pipe respectively; The heating system includes a compressor, a condenser, a throttling expansion valve, a first evaporator, a second evaporator, a blower and a hot water delivery pump. The water inlet of the heat exchange end of the condenser is used to be connected to the softened water supply pipe, and the steam outlet of the heat exchange end of the condenser is connected to the first air distributor and the second air distributor respectively; the air inlet of the heat exchange end of the second evaporator is connected to the blower, and the air outlet of the heat exchange end of the second evaporator is used to be connected to the air supply pipe; the first evaporator and the second evaporator are arranged in parallel, the water inlet of the heat exchange end of the first evaporator is connected to the water outlet of the heat supply end of the heat energy recovery heat exchanger, and the water outlet of the heat exchange end of the first evaporator is used to be connected to a sewage treatment device; a hot water discharge outlet is provided at the bottom of the condenser, the water inlet of the hot water delivery pump is connected to the hot water discharge outlet, and the water outlet of the hot water delivery pump is connected to a heat storage tank.

8. An intelligent heating control system based on a tunnel washer, characterized in that: include: The acquisition module is used to obtain the current working status of the washing body; The judgment and execution module is used to run the second heating cycle of the energy-saving heating device when the washing body is in the initial start-up state, heat the condenser and add hot water to the heat storage tank until the condenser can produce steam, and then put the fabric in according to the washing program of the washing body to perform the normal washing process; the specific operations are: Obtain the water temperature requirements of the fourth and fifth bins in the current washing body, the water temperature and liquid level of the condenser, the water temperature and liquid level of the heat storage tank, and the liquid level of the first return water tank. If the liquid level of the heat storage tank does not meet the requirements, add softened water to the condenser, and start the second heating cycle formed by connecting the compressor, condenser, throttling expansion valve, and second evaporator end to end; When the water temperature of the condenser meets the water temperature requirement of the heat storage tank, the hot water delivery pump is started to replenish the hot water in the condenser to the heat storage tank; when the water level in the heat storage tank meets the requirement, the hot water delivery pump is stopped, and the second heating cycle is continued until the condenser can produce steam, and then the heat supply pump is started to supply hot water to the thirteenth warehouse; When the first return water tank meets the water level requirement, the first return water pump is started to supply hot water to the first chamber, and the steam supply valves of the fourth chamber and the fifth chamber are opened. At this time, according to the washing program of the washing body, the fabrics are put in and the normal washing process is carried out; When the washing body is in normal operation, the operating load of the heating system is adjusted according to the steam volume requirements of the fourth and fifth bins of the washing body; the heat exchange of the energy-saving recovery system is adjusted according to the sewage discharge and water temperature of the eighth and ninth bins of the washing body; When the washing machine is in standby state / fault state, within the set standby threshold, the heating system is operated at the lowest load. If the standby time exceeds the set standby threshold, the heating system is shut down. When the washing body is in the shutdown state, the energy-saving heating device is shut down.

9. An intelligent control device, characterized in that: It includes a storage device and a processor, wherein the storage device stores a program for implementing the intelligent heating control method as described in any one of claims 1 to 7; the processor loads the program stored in the storage device and executes the steps of the intelligent heating control method as described in any one of claims 1 to 7.

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