Micro-pressure reducing cocoon cooking machine

Abstract

The application discloses a micro decompression cocoon cooking machine, which comprises a rack (12), a composite pipeline system (4), a water supply pipeline system, a steam system, a main tank (1), a warm water distribution box (2), an auxiliary tank (5) and a water ring vacuum pump (6) arranged on the rack (12), wherein the composite pipeline system (4) comprises an upper composite pipeline system and a lower composite pipeline system, the upper composite pipeline system is connected with the lower composite pipeline system, the warm water distribution box (2), the water supply pipeline system, the steam system and the main tank (1) respectively, and the lower composite pipeline system is connected with the auxiliary tank (5), the water supply pipeline system, the main tank (1), the warm water distribution box (2) and the steam system respectively. When the "decompression+" method is used to cook cocoon, the inside and outside layers of the cocoon can be uniformly cooked, cocoon consumption is reduced, the tens of thousands of meters of cocoon are reduced, the cleaning and cleanness of raw silk are effectively ensured, the grade of raw silk is prevented from being reduced, the quality of cocoon is objectively detected, and the production is guided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cocoon cooking technology, in particular to a micro pressure-reducing cocoon cooking machine. BACKGROUND

[0002] In the production of raw silk, cocoon cooking is an extremely important process. The quality of cocoon cooking directly relates to the yield, quality and consumption of silk reeling production. Cocoon cooking is to properly swell and dissolve the silk gum of cocoon silk by using water, heat or additives, weaken the combination between silk gum particles, reduce the adhesion, and improve the uneven adhesion, so that the cocoon silk can be continuously and sequentially separated according to the adhesion points during silk reeling, and bundled and held into raw silk. The equipment for cocoon cooking is a cocoon cooking machine. Under certain water quality conditions, the cocoon cooking process mainly includes temperature and time.

[0003] The long cage circulating steam cocoon cooking machine is a widely used equipment in modern cocoon cooking engineering. The entire cocoon cooking machine is in a long strip continuous processing form, which is a whole ring structure double chain system connecting more than 100 cocoon cages (each cocoon cage contains 70-100g of cocoon) to form a vertical circulating cocoon processing device. The upper and lower areas of the chain circulation structure are respectively called upper tank and lower tank. All cocoon cages are driven by the chain to experience different zones in the upper and lower tanks, and receive cocoon cooking treatment set in the zone to complete the cocoon cooking process according to the cocoon cooking process requirements. The upper tank has cocoon adding part, immersion part and preheating part. The cocoon cage turning part between the upper tank and the lower tank is a high temperature permeation part. The lower tank has low temperature permeation part, steaming part, adjusting part, protection part and outlet part. The cooked cocoon is discharged from each cocoon cage at the right end outlet of the lower tank to the cocoon bucket transferred, and then sent to the silk reeling machine for silk reeling. The empty cocoon cage is driven by the chain to return to the cocoon adding part of the upper tank, and then a new cycle of cocoon cooking is carried out. The currently widely used machine type is 104 cages, the whole machine length is about 14m, one total steam gate valve is provided for adjusting the steam pressure, which is manually or automatically controlled. Temperature meters are installed in each section. The cooking speed can be adjusted. The permeation adopts external vacuum permeation.

[0004] In the design structure of long cage circulating steam cocoon cooking machine, it is divided into permeation, cooking, adjustment and protection function areas. Permeation is the process of making cocoon cavity absorb water and wet cocoon layer, and the permeation quality is related to the cooking quality of cocoon. At present, the method of vacuum permeation outside the machine is widely used, that is, the cocoon is put into a sealed container, then vacuumed to a certain degree, then a certain temperature water is introduced to reach the specified liquid level while vacuuming, re-pressurized, and the water enters the cocoon cavity to wet the cocoon layer. Cooking is divided into two processes of water discharge and steaming. Through the configuration of steam hole pipe blind pipe in the steaming chamber, the cocoon cavity discharges water when reaching a certain temperature, and then the cocoon layer is cooked to make the sericin swell properly and the cocoon layer fully contain water to reduce the adhesion of sericin. The function of the adjustment and protection part is to further cook the cocoon, remove the hypersensitive sericin, gradually reduce the temperature, solidify the sericin, and protect the outer layer. The structure of the adjustment part is divided into three sections of medium water, dynamic shaking and static cooking, and the temperature decreases in turn. There are water sprinkling pipes and overflow outlets on each section to facilitate the temperature reduction, and the temperature difference of the adjustment part has a very close relationship with the cooking quality of cocoon. With the rapid popularization of automatic reeling machines in China, the method of vacuum permeation outside the machine + long cage circulating cocoon cooking machine is widely used for cooking cocoon.

[0005] The main process parameters of the long cage circulating steam cocoon cooking machine are shown in Table A:

[0006] Table A

[0007]

[0008] In raw silk production process, in order to find out the quality of cocoon, cocoon sample detection is needed, and then process design can be carried out, that is, the quality, yield and cocoon consumption of raw silk production are designed. Unraveling investigation is a key link in cocoon quality investigation, and cocoon quality detection is carried out in production enterprises and inspection and testing institutions. Generally, 200 or 400 cocoon samples are used, several area samples are used, and the main process is cocoon cooking and reeling test. In factory detection, cocoon cooking is cooked in production Zhuangkou, that is, the method of attached cooking, and then the key indexes of cocoon such as cocoon silk length, unraveling rate, unraveling light fold, single silk fineness, per meter suspension roughness, cleanliness and cleanliness are tested through test reeling machine and other equipment to determine the quality of cocoon. The small cocoon cooking machine is used for detection in fiber inspection institutions, which is manually controlled. The quality of cooked cocoon is quite different from that of large sample production, the cocoon cavity bubble is large, and the cooking quality is lower than that of factory level, which cannot objectively and truly reflect the cocoon quality level. SUMMARY

[0009] The purpose of the present application is to provide a micro pressure reduction cocoon cooking machine, which can ensure uniform cooking of the inner and outer layers of cocoon, reduce cocoon consumption, reduce per meter suspension roughness, and effectively protect the cleanliness and cleanliness of raw silk, avoiding the reduction of raw silk grade.

[0010] This invention is achieved through the following technical solution: a miniature decompression cocoon boiling machine, comprising a frame, on which are installed a composite pipeline system, a water supply pipeline system, a steam system, a main tank, a heated water tank, an auxiliary tank, and a water ring vacuum pump. The composite pipeline system includes an upper composite pipeline system and a lower composite pipeline system. The upper composite pipeline system is connected to the lower composite pipeline system, the heated water tank, the water supply pipeline system, the steam system, and the main tank, respectively. The lower composite pipeline system is connected to the auxiliary tank, the water supply pipeline system, the main tank, the heated water tank, and the steam system, respectively. The water ring vacuum pump is connected to the auxiliary tank and the water supply pipeline system. A main tank sight glass is also provided on the side wall of the main tank.

[0011] As a preferred configuration, the miniature decompression cocoon boiling machine is equipped with a frame, a composite pipeline system, a water supply pipeline system, a steam system, a main tank, a heated water tank, an auxiliary tank, and a water ring vacuum pump. The composite pipeline system mainly consists of an upper composite pipeline system and a lower composite pipeline system. The upper composite pipeline system is connected to the lower composite pipeline system, the heated water tank, the water supply pipeline system, the steam system, and the main tank. The lower composite pipeline system is connected to the auxiliary tank, the water supply pipeline system, the main tank, the heated water tank, and the steam system. The water ring vacuum pump is connected to the auxiliary tank and the water supply pipeline system.

[0012] To further improve the implementation of this invention, the following structure is specifically adopted: the upper composite pipeline system includes an upper composite pipe, a vent pipe, and multiple pipes. One end of the vent pipe is connected to the upper composite pipe, and the other end of the vent pipe is placed in the heating water tank (to prevent water from overflowing, which can be collected in the heating water tank). A one-way valve, a gate valve, and a solenoid valve are installed on the vent pipe. The upper composite pipe is also connected to the water supply pipeline system, the steam system, and the lower composite pipeline system through pipes equipped with solenoid valves. The upper connecting pipe of the main tank is connected to the upper composite pipe.

[0013] As a preferred configuration, the upper composite piping system includes an upper composite pipe, a vent pipe, and multiple other pipes. One end of the vent pipe is connected to the upper composite pipe, and the other end is placed inside the heating water tank. A one-way valve G1, a gate valve Q1, and a solenoid valve F4 are installed on the vent pipe. During installation, the one-way valve G1 is positioned closer to the heating water tank, and the solenoid valve F4 is positioned further away from the heating water tank. The gate valve Q1 is installed on the vent pipe between the solenoid valve F4 and the one-way valve G1. The upper composite pipe is also connected to the water supply piping system via a pipe equipped with a solenoid valve F6, to the steam inlet system via a pipe equipped with a solenoid valve F20, and to the lower composite piping system via a pipe equipped with a solenoid valve F1. The upper connecting pipe of the main tank is connected to the upper composite pipe.

[0014] To further improve the implementation of this invention, the following structure is specifically adopted: the lower composite pipeline system includes multiple pipes and two sections of lower composite pipe connected by solenoid valves. One section of the lower composite pipe is connected to the lower composite pipe of the auxiliary tank and the pipe connected to the auxiliary tank through a pipe, and this section of the lower composite pipe is also connected to the upper composite pipeline system through a pipe equipped with a solenoid valve. The other section of the lower composite pipe is connected to the steam system, the bottom pipe of the heating water tank, and the water supply pipeline system through pipes equipped with solenoid valves, and this section of the lower composite pipe is also connected to the lower connecting pipe of the main tank, which can realize upper and lower vacuuming, steam, and water supply to the main tank.

[0015] As a preferred configuration, the lower composite piping system includes multiple pipes and two lower composite pipes connected by solenoid valves F9. One lower composite pipe is directly connected to the lower composite pipe of the auxiliary tank via a pipe, and this lower composite pipe is also connected to the upper composite pipe of the upper composite piping system via a pipe equipped with solenoid valve F1. The other lower composite pipe is connected to the steam system via a pipe equipped with solenoid valve F19, to the bottom pipe of the heating water tank via a pipe equipped with solenoid valve F12, and to the water supply system via a pipe equipped with solenoid valve F7. This lower composite pipe is also connected to the lower connecting pipe of the main tank, which can realize upper and lower vacuuming, steam, and water supply to the main tank.

[0016] To further improve the implementation of this invention, the following structure is specifically adopted: a heating water drainage system is also provided at the end of the pipe connecting the lower composite pipe and the heating water tank.

[0017] As a preferred configuration, a pipe (heated water main b) is led out from the heated water tank. This pipe has a head end and an end end. The head end is connected to the heated water tank, and the end end is equipped with a heated water drainage system. The heated water drainage system mainly consists of a heated water drain outlet D and a gate valve Q3. A pipe equipped with a solenoid valve F12 is also connected to the heated water main b via a pipe assembly, so that the heated water main b can both allow heated water to pass through the lower composite pipe and discharge sewage from the heated water tank.

[0018] To further improve the implementation of this invention, the following structure is specifically adopted: the water supply pipeline system is provided with a main water supply pipe, which is connected to the upper composite pipeline system, the lower composite pipeline system, the upper water supply port of the heating water tank and the water ring vacuum pump through multiple pipes. The water ring vacuum pump is connected to the auxiliary tank and the main water supply pipe through pipes equipped with solenoid valves. A solenoid valve is provided on the pipe connecting the main water supply pipe to the heating water tank.

[0019] As a preferred configuration, the water supply pipeline system includes a main water supply pipe e, which is connected to the upper composite pipe of the upper composite pipeline system via a pipe equipped with a solenoid valve F6, connected to the lower composite pipe of the lower composite pipeline system via a pipe equipped with a solenoid valve F7, connected to the heating water tank via a pipe equipped with a solenoid valve F11 (the main water supply pipe e supplies water to the upper part of the heating water tank via the solenoid valve F11), and connected to the water ring vacuum pump via a pipe equipped with a solenoid valve FS (the main water supply pipe e is connected to the water ring vacuum pump, and the solenoid valve FS is installed to ensure the water required for the water ring vacuum pump to generate vacuum). The interface of the water ring vacuum pump in the direction of vacuum generation is connected to the auxiliary tank via a pipe equipped with a solenoid valve F5. A gate valve Q4 is installed on the main water supply pipe e.

[0020] To further improve the implementation of this invention, the following structure is specifically adopted: the steam system includes a main steam inlet pipe, which is connected to the upper composite pipeline system, the lower composite pipeline system and the heating water tank through multiple pipes. A solenoid valve is also installed on the pipe connecting the main steam inlet pipe to the heating water tank, and a steam sludge discharge system is also installed at the end of the main steam inlet pipe.

[0021] As a preferred configuration, the steam system includes a main steam inlet pipe a, which is connected to the upper composite pipe of the upper composite pipe system through a pipe equipped with a solenoid valve F20, connected to the lower composite pipe of the lower composite pipe system through a pipe equipped with a solenoid valve F19, and connected to the heating water tank through a pipe equipped with a solenoid valve F16. The main steam inlet pipe a is divided into a head end (i.e., steam inlet C) and a tail end. The tail end is also equipped with a steam blowdown system, which is equipped with a gate valve Q2 and a steam blowdown port E.

[0022] To further improve the implementation of this invention, the following configuration structure is adopted: on the frame, the main tank is positioned above the water ring vacuum pump; the auxiliary tank is positioned adjacent to the water ring vacuum pump and is spatially higher than the water ring vacuum pump; the heated water tank is positioned adjacent to the auxiliary tank and is spatially higher than the auxiliary tank; the main tank, heated water tank, and auxiliary tank are arranged in a triangular pattern.

[0023] As a preferred configuration, when arranging the main tank, heating water tank, auxiliary tank, and water ring vacuum pump on the frame, the main tank, heating water tank, and auxiliary tank are arranged in a triangular shape in terms of spatial position (height). In specific configuration, the water ring vacuum pump is placed at the bottom, and the main tank is placed above the water ring vacuum pump via a bracket. The auxiliary tank is placed adjacent to the water ring vacuum pump, and in terms of spatial position (height), the auxiliary tank is also located to the side and above the water ring vacuum pump. The heating water tank is placed adjacent to the auxiliary tank, and in terms of spatial position, the heating water tank is higher than the auxiliary tank, but this is not the only option.

[0024] To further improve the implementation of this invention, the following configuration is adopted: the lower composite pipe is positioned lower than the main tank in space, and the upper composite pipe is positioned in the lower middle part of the heating water tank and the main tank in space.

[0025] To further improve the implementation of this invention, the following configuration is adopted: the water inlet of the water supply pipeline system is positioned lower than the steam inlet of the steam system.

[0026] To further improve the present invention, the following configuration structure is adopted: a drain outlet is also provided on the auxiliary tank, and the drain outlet is located below the auxiliary tank in spatial position.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] (1) The present invention uses PLC program control, which improves the control level.

[0029] (2) This invention adopts a composite pipeline system and uses a PLC to control the solenoid valve to achieve a combination of various methods according to process requirements (i.e., different combinations of vacuum, steam, and water forming on the upper and lower parts of the main tank). This invention uses the "vacuum+" method and, through precise control of temperature and time, can achieve uniform cooking of the inner and outer layers of silkworm cocoons, filling the gap in the technology of miniaturized cocoon cooking machines.

[0030] (3) The quality of the boiled cocoons can be greatly improved by the present invention, which more accurately reflects the quality level of the silkworm cocoons and provides a scientific basis for production decisions.

[0031] (4) This invention saves water, electricity and steam consumption, and achieves energy conservation and emission reduction.

[0032] (5) This invention can optimize the cocoon boiling process, reduce the quality fluctuation of cocoons boiled on the cocoon boiling machine, and achieve the purpose of improving quality and reducing cocoon consumption.

[0033] (6) This invention occupies a small area and the main tank volume can boil up to 1.5 kg of silkworm cocoons, which is the amount of silkworm cocoons that need to be boiled for 400 sample tests in 4 zones. Attached Figure Description

[0034] Fig. 1 This is a schematic diagram of a miniature pressure-reducing cocoon boiling machine.

[0035] Fig. 2 This is a three-dimensional schematic diagram of the piping system of a miniature pressure-reducing cocoon boiling machine.

[0036] Fig. 3 This is a schematic diagram of the piping system of a miniature pressure-reducing cocoon boiling machine.

[0037] Fig. 4 This is a PLC control circuit connection diagram for a miniature pressure-reducing cocoon boiling machine.

[0038] Fig. 5 This is a schematic diagram of the text display interface of a miniature decompression cocoon boiling machine.

[0039] Fig. 6 This is a schematic diagram of the electrical control box panel of the present invention.

[0040] Among them, 1-main tank, 2-heated water tank, 3-main tank sight glass, 4-composite piping system, 5-auxiliary tank, 6-water ring vacuum pump, 7-upper composite pipe, 8-lower composite pipe, 11-vent pipe, 12-frame, A-water inlet, B-drain outlet, C-steam inlet, D-heated water drain outlet, E-steam drain outlet, a-steam main pipe, b-heated water main pipe, e-water main pipe. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to embodiments, but the implementation of the present invention is not limited thereto.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] Example 1:

[0048] This invention designs a miniature decompression cocoon boiling machine. When using the "decompression+" method to boil cocoons, it ensures uniform cooking of the inner and outer layers, reduces cocoon waste, minimizes the amount of silk being washed, and effectively guarantees the cleanliness and purity of the raw silk, preventing a decrease in the grade of the raw silk. Figs. 1-3 As shown, the system includes a frame 12, on which are mounted a composite piping system 4, a water supply piping system, a steam system, a main tank 1, a heated water tank 2, an auxiliary tank 5, and a water ring vacuum pump (S) 6. The composite piping system 4 includes an upper composite piping system and a lower composite piping system. The upper composite piping system is connected to the lower composite piping system, the heated water tank 2, the water supply piping system, the steam system, and the main tank 1. The lower composite piping system is connected to the main tank 1, the auxiliary tank 5, the water supply piping system, the heated water tank 2, and the steam system. The water ring vacuum pump (S) 6 is connected to the auxiliary tank 5 and the water supply piping system. A sight glass for the main tank is also installed on the side wall of the main tank.

[0049] As a preferred configuration, the miniature decompression cocoon boiling machine is equipped with a frame 12, a composite pipeline system, a water supply pipeline system, a steam system, a main tank 1, a heated water tank 2, an auxiliary tank 5, and a water ring vacuum pump (S) 6. The composite pipeline system mainly consists of an upper composite pipeline system and a lower composite pipeline system. The upper composite pipeline system is connected to the lower composite pipeline system, the heated water tank 2, the water supply pipeline system, the steam system, and the main tank 1. The lower composite pipeline system is connected to the main tank 1, the auxiliary tank 5, the water supply pipeline system, the heated water tank 2, and the steam system. The water ring vacuum pump (S) 6 is connected to the auxiliary tank 5 and the water supply pipeline system.

[0050] Example 2:

[0051] This embodiment is a further optimization based on the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3 As shown, to further better realize the present invention, the following structure is specifically adopted: the upper composite pipeline system includes an upper composite pipe 7, a vent pipe 11 and multiple pipes. One end of the vent pipe 11 is connected to the upper composite pipe 7, and the other end of the vent pipe 11 is placed in the heating water tank 2 (to prevent water from overflowing, the heating water tank 2 can collect it). A one-way valve G1, a gate valve Q1 and a solenoid valve F4 are provided on the vent pipe 11. The upper composite pipe 7 is also connected to the water supply pipeline system, the steam system and the lower composite pipeline system through pipes equipped with solenoid valves. The upper connecting pipe of the main tank 1 is connected to the upper composite pipe 7.

[0052] As a preferred configuration, the upper composite piping system includes an upper composite pipe 7, a vent pipe 11, and multiple pipes. One end of the vent pipe 11 is connected to the upper composite pipe 7, and the other end of the vent pipe 11 is placed inside the heating water tank 2 (to prevent water overflow, which the heating water tank 2 can collect). A one-way valve G1, a gate valve Q1, and a solenoid valve F4 are installed on the vent pipe 11. In this configuration, the one-way valve G1 is positioned closer to the heating water tank 2, and the solenoid valve F4 is positioned further away from the heating water tank 2. The gate valve Q1 is positioned on the vent pipe 11 between the solenoid valve F4 and the one-way valve G1. The upper composite pipe 7 is also connected to the water supply piping system via a pipe equipped with a solenoid valve F6, to the steam system via a pipe equipped with a solenoid valve F20, and to the lower composite piping system via a pipe equipped with a solenoid valve F1. The upper connecting pipe of the main tank 1 is connected to the upper composite pipe 7.

[0053] Example 3:

[0054] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3As shown, to further better realize the present invention, the following structure is specifically adopted: The lower composite pipeline system includes multiple pipes and two sections of lower composite pipe 8 connected by solenoid valves. One section of the lower composite pipe 8 is connected to the lower composite pipe of the auxiliary tank 5 and the auxiliary tank through a pipe, and this section of the lower composite pipe 8 is also connected to the upper composite pipeline system through a pipe equipped with a solenoid valve; the other section of the lower composite pipe 8 is connected to the steam system, the bottom pipe of the heating water tank 2 and the water supply pipeline system through pipes equipped with solenoid valves, and this section of the lower composite pipe 8 is also connected to the lower connecting pipe of the main tank 1 through a pipe, which can realize upper and lower vacuuming, steaming and water supply to the main tank.

[0055] As a preferred configuration, the lower composite piping system includes multiple pipes and two lower composite pipes 8 connected by solenoid valves F9. One lower composite pipe 8 is directly connected to the lower composite pipe of the auxiliary tank 5 and the pipe connecting the auxiliary tank. This lower composite pipe 8 is also connected to the upper composite pipe 7 of the upper composite piping system through a pipe equipped with solenoid valve F1. The other lower composite pipe 8 is connected to the steam system through a pipe equipped with solenoid valve F19, to the bottom pipe of the heating water tank 2 through a pipe equipped with solenoid valve F12, and to the water supply piping system through a pipe equipped with solenoid valve F7. This lower composite pipe 8 is also connected to the lower connecting pipe of the main tank 1, which can realize upper and lower vacuuming, steaming, and water supply to the main tank 1.

[0056] Example 4:

[0057] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3 As shown, in order to better realize the present invention, the following structure is specially adopted: a heating water drainage system is also provided at the end of the pipe connecting the lower composite pipe 8 and the heating water tank 2.

[0058] As a preferred configuration, a pipe (heated water main b) is led out from the heated water tank 2. The pipe has a head end and an end end. The head end of the heated water main b is connected to the heated water tank 2, and the end end is equipped with a heated water drainage system. The heated water drainage system mainly consists of a heated water drain outlet D and a gate valve Q3. The heated water main b is also connected to a pipe equipped with a solenoid valve F12 via a pipe assembly, so that the heated water main b can both supply water passing through the heated water tank 2 to the lower composite pipe 8 and discharge sewage from the heated water tank 2.

[0059] Example 5:

[0060] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3As shown, to further better realize the present invention, the following configuration structure is specifically adopted: the water supply pipeline system is provided with a main water supply pipe e, which is connected to the upper composite pipeline system, the lower composite pipeline system, the upper water supply port of the heating water tank 2 and the water ring vacuum pump (S) 6 through multiple pipes. The water ring vacuum pump (S) 6 is connected to the auxiliary tank 5 and the main water supply pipe e through pipes equipped with solenoid valves. A solenoid valve F11 is installed on the pipe connecting the main water supply pipe e to the heating water tank 2.

[0061] As a preferred configuration, the water supply pipeline system includes a main water supply pipe e, which is connected to the upper composite pipe 7 of the upper composite pipeline system via a pipe equipped with a solenoid valve F6, to the lower composite pipe 8 of the lower composite pipeline system via a pipe equipped with a solenoid valve F7, to the heating water tank 2 via a pipe equipped with a solenoid valve F11 (the main water supply pipe e supplies water to the upper part of the heating water tank via the solenoid valve F11), and to the water ring vacuum pump (S) 6 via a pipe equipped with a solenoid valve FS (the main water supply pipe e is connected to the water ring vacuum pump (S) 6, and the solenoid valve FS is installed to ensure the water required for the water ring vacuum pump (S) 6 to generate a vacuum). The interface of the water ring vacuum pump (S) 6 in the direction of vacuum generation is also connected to the auxiliary tank 5 via a pipe equipped with a solenoid valve F5. A gate valve Q4 is installed on the main water supply pipe e.

[0062] Example 6:

[0063] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3 As shown, in order to better realize the present invention, the following structure is specifically adopted: the steam system includes a steam inlet main pipe a, which is connected to the upper composite pipeline system, the lower composite pipeline system and the heating water tank 2 through multiple pipes. A solenoid valve F16 is also installed on the pipe connecting the steam inlet main pipe a to the heating water tank 2. A steam exhaust system is also installed at the end of the steam inlet main pipe.

[0064] As a preferred configuration, the steam system includes a main steam inlet pipe a, which is connected to the upper composite pipe 7 of the upper composite pipe system through a pipe equipped with a solenoid valve F20, to the lower composite pipe 8 of the lower composite pipe system through a pipe equipped with a solenoid valve F19, and to the heating water tank 2 through a pipe equipped with a solenoid valve F16. The main steam inlet pipe a is divided into a head end (i.e., steam inlet C) and a tail end. The tail end is also equipped with a steam blowdown system, which is equipped with a gate valve Q2 and a steam blowdown port E.

[0065] Example 7:

[0066] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3As shown, to further better realize the present invention, the following arrangement structure is specifically adopted: On the frame 12, the main tank 1 is arranged above the water ring vacuum pump (S) 6; the auxiliary tank 5 is arranged adjacent to the water ring vacuum pump (S) 6, and in spatial position the auxiliary tank 5 is higher than the water ring vacuum pump (S) 6; the heated water tank 2 is arranged adjacent to the auxiliary tank 5, and in spatial position the heated water tank 2 is higher than the auxiliary tank 5; in spatial position the main tank 1, the heated water tank 2 and the auxiliary tank 5 are arranged in a triangular pattern.

[0067] As a preferred configuration, when arranging the main tank 1, the heated water tank 2, the auxiliary tank 5, and the water ring vacuum pump (S) 6 on the frame, the main tank 1, the heated water tank 2, and the auxiliary tank 5 are arranged in a triangular shape in terms of spatial position (height direction). In specific configuration, the water ring vacuum pump (S) 6 is placed at the bottom, and the main tank 1 is placed above the water ring vacuum pump (S) 6 by means of a bracket. The auxiliary tank 5 is placed next to the water ring vacuum pump (S) 6, and in terms of spatial position (height direction), the auxiliary tank 5 is also located to the side and above the water ring vacuum pump (S) 6. The heated water tank 2 is placed next to the auxiliary tank 5, and in terms of spatial position, the heated water tank 2 is higher than the auxiliary tank 5, but it is not limited to this configuration.

[0068] Example 8:

[0069] This embodiment is a further optimization based on any of the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figs. 1-3 As shown, in order to better realize the present invention, the following configuration structure is adopted: the lower composite pipe 8 is lower than the main tank 1 in spatial position, and the upper composite pipe 7 is located in the lower middle part of the heating water tank 2 and the main tank 1 in spatial position, but it is not limited to this.

[0070] The water supply inlet A of the water supply pipeline system is spatially lower than the steam inlet (steam inlet C) of the steam system.

[0071] A drain outlet B is also provided on the auxiliary tank 5, and the drain outlet B is located below the auxiliary tank 5 in terms of spatial position.

[0072] Example 9:

[0073] This embodiment is a further optimization based on any of the above embodiments, such as... Figs. 1-3 As shown, this miniature pressure-reducing cocoon boiling machine is preferably controlled by a PLC. To achieve PLC control, a PLC control circuit structure is set up, and the connection diagram of the PLC control circuit is shown below. Fig. 4 As shown in the figure:

[0074] The PLC chip used is FX2N-40MR(T). The water ring vacuum pump (S)6 is connected to the Y00 port of the PLC chip via KM1. Solenoid valves F1 to F12 are connected to the Y01 to Y07 ports and Y10 to Y14 ports of the PLC chip via KA1 to KA12 respectively (the FX2N-40MR(T) PLC model does not have Y08 and Y09 output ports). The COM0 to COM5 ports of the PLC chip are connected to one phase line of the AC power supply (L or N, preferably L phase). The Y15 and Y16 ports of the PLC chip... The port is configured with automatic lights and alarm lights. One phase wire (N or L, preferably N phase wire) of the AC power is connected to the terminal of KM1 connected to the water ring vacuum pump (S) 6, the terminal of KA1~KA12 connected to the solenoid valves F1~F12, the non-PLC chip connection terminal of the automatic light, and the non-PLC chip connection terminal of the alarm light. The other end of the solenoid valves F1~F12 is connected to the L phase wire. That is, the solenoid valves F1~F12 are all connected to two phase wires (L and N respectively). The terminal connected to the N phase wire is connected to KA (KA1~KA12).

[0075] A temperature sensor is installed between the AD0+ and AD0- ports of the PLC chip to detect the temperature of the main tank and the temperature of the distribution water tank. A program reset button, a power-on continuation button, an auto-select button, a start button, an emergency stop button, a water ring vacuum pump button, and various solenoid valve buttons are respectively installed on the X0 to X21 terminals of the PLC chip. Fig. 6 The schematic diagram of the electrical control box panel is shown below.

[0076] Temperature acquisition and control of the miniature vacuum cocoon boiling machine are achieved through a combination of temperature sensors and PLC chips installed in the main tank 1 and the heating water tank 2. The vacuum level and the amount of water required for boiling the cocoons are controlled by a vacuum gauge installed on the main tank 1 and the time it takes for the liquid level to reach the position of the sight glass 3 in the main tank. The vacuum, steam, and water management of the cocoons in the main tank 1 are implemented by the closing of various solenoid valves in the pipeline system, so that the steam heat energy received by the cocoons is mainly completed by convection.

[0077] The miniature depressurized cocoon boiling machine uses PLC technology to set and control temperature and time parameters, operating automatically. Each boiling program has a different operating status, displayed via text.

[0078] Temperature settings include infiltration tank temperature (infiltration water temperature), adjustment tank temperature (adjustment water temperature), discharge temperature, and cooking temperature. Infiltration, adjustment, and protection functions are set using time. Process parameters can be adjusted according to production needs. The setting interface (text display interface) is as follows: Fig. 5As shown, the temperature of the infiltration tank and the temperature of the adjustment tank are achieved by controlling different temperatures of the water in the heating tank (the cocoon boiling process includes infiltration, steaming, and adjustment processes, among which infiltration and adjustment are the processes of water absorption in the cocoon cavity, which require different water temperatures. This invention uses the same water tank (heating tank) to heat the water to the process requirements at different times).

[0079] Table 2 shows the names and functions of the water ring vacuum pump (S)6 and various solenoid valves:

[0080] Table 2

[0081]

[0082]

[0083] The upper composite pipe 7 and lower composite pipe 8 can be used to implement various combined processes on the main tank 1, such as steam inlet and vacuuming at the bottom of the main tank 1, steam inlet and main-auxiliary connection at the bottom of the main tank 1 (main tank and auxiliary tank connection), steam inlet at the bottom of the main tank 1, etc.

[0084] When using a miniature pressure-reducing cocoon boiling machine, there are 7 processes, each of which includes several time periods. The program is set with 25 time sequences, namely T1 to T25. The cocoon boiling process, time periods and functions are shown in Table 3.

[0085] Table 3

[0086]

[0087] In the vacuum adjustment and water absorption protection process section, the temperature of the heating water tank 2 should be set according to the characteristics of the raw materials. During infiltration, the temperature of the heating water tank 2 is heated to 30-38℃ to form infiltration water; during adjustment, the temperature of the heating water tank 2 is automatically heated to 40-50℃ to form adjustment water. On the miniature depressurization cocoon boiling machine, the infiltration water and the adjustment water share a single water tank (heating water tank 2), such as... Fig. 5 (a) According to the process requirements, heating is carried out in different time periods, as shown by the solenoid valve F16 for water tank heating in Tables 2 and 4.

[0088] Water discharge and cooking processes: Water discharge temperature 66-78℃, cooking temperature 95-101℃, with a jump temperature setting for both water discharge and cooking. That is, if the temperature reaches the set requirement within the current operating time range, the process will switch to the next operating sequence.

[0089] All process segment time settings: The setting unit is 0.1 seconds, and the adjustment range for each timing sequence is 0-999 seconds. The setting is based on the running time of each timing process, and is generally 0-120 seconds.

[0090] Open the lid of main tank 1, place the silkworm cocoons into main tank 1, and then tighten and seal the lid. Turn on the "start button" on the electrical control box, and the PLC will automatically control the operation. The schematic diagram of the electrical control box is shown below. Fig. 6 As shown.

[0091] Table 4 shows the sequence and operation of boiling cocoons:

[0092] Table 4

[0093]

[0094]

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A miniature pressure-reducing cocoon boiling machine, comprising a frame (12), on which are installed a composite pipeline system (4), a water supply pipeline system, a steam system, a main tank (1), a heated water tank (2), an auxiliary tank (5), and a water ring vacuum pump (6), characterized in that: The composite pipeline system (4) includes an upper composite pipeline system and a lower composite pipeline system. The upper composite pipeline system is connected to the lower composite pipeline system, the heating water tank (2), the water supply pipeline system, the steam system and the main tank (1) respectively. The lower composite pipeline system is connected to the auxiliary tank (5), the water supply pipeline system, the main tank (1), the heating water tank (2) and the steam system respectively. The water ring vacuum pump (6) is connected to the auxiliary tank (5) and the water supply pipeline system. The upper composite pipeline system includes an upper composite pipe (7), a vent pipe (11), and multiple pipes. One end of the vent pipe (11) is connected to the upper composite pipe (7), and the other end of the vent pipe (11) is placed in the heating water tank (2). A one-way valve, a gate valve, and a solenoid valve are installed on the vent pipe (11). The upper composite pipe (7) is also connected to the water supply pipeline system, the steam system, and the lower composite pipeline system through pipes equipped with solenoid valves. The upper connecting pipe of the main tank (1) is connected to the upper composite pipe (7). The lower composite pipeline system includes multiple pipes and two sections of lower composite pipe (8) connected by solenoid valves. One section of the lower composite pipe (8) is connected to the auxiliary tank (5) through a pipe, and this section of the lower composite pipe (8) is also connected to the upper composite pipeline system through a pipe equipped with a solenoid valve. The other section of the lower composite pipe (8) is connected to the steam system, the heating water tank (2) and the water supply pipeline system through pipes equipped with solenoid valves, and this section of the lower composite pipe (8) is also connected to the lower connecting pipe of the main tank (1).

2. The miniature decompression cocoon boiling machine according to claim 1, characterized in that: A sewage discharge system for heated water is also installed at the end of the pipe connecting the lower composite pipe (8) and the heated water tank (2).

3. The miniature pressure-reducing cocoon boiling machine according to claim 1, characterized in that: The water supply pipeline system is equipped with a main water supply pipe, which is connected to the upper composite pipeline system, the lower composite pipeline system, the heating water tank (2) and the water ring vacuum pump (6) through multiple pipes. The water ring vacuum pump (6) is connected to the auxiliary tank (5) and the main water supply pipe through pipes equipped with solenoid valves. Solenoid valves are installed on the pipes connecting the main water supply pipe to the heating water tank (2).

4. The miniature decompression cocoon boiling machine according to claim 1, characterized in that: The steam system includes a main steam inlet pipe, which is connected to the upper composite pipeline system, the lower composite pipeline system and the heating water tank (2) through multiple pipes. A solenoid valve is also installed on the pipe connecting the main steam inlet pipe to the heating water tank (2), and a steam drainage system is also installed at the end of the main steam inlet pipe.

5. The miniature decompression cocoon boiling machine according to any one of claims 1 to 4, characterized in that: On the frame (12), the main tank (1) is positioned above the water ring vacuum pump (6); the auxiliary tank (5) is positioned next to the water ring vacuum pump (6), and in spatial position the auxiliary tank (5) is higher than the water ring vacuum pump (6); the heated water tank (2) is positioned next to the auxiliary tank (5), and in spatial position the heated water tank (2) is higher than the auxiliary tank (5); in spatial position the main tank (1), the heated water tank (2) and the auxiliary tank (5) are arranged in a triangular pattern.

6. The miniature decompression cocoon boiling machine according to claim 5, characterized in that: The lower composite pipe (8) is lower than the main tank (1) in spatial position, and the upper composite pipe (7) is located in the middle and lower part of the heating water tank (2) and the main tank (1) in spatial position.

7. The miniature decompression cocoon boiling machine according to claim 5, characterized in that: The water inlet of the water supply pipeline system is located lower than the steam inlet of the steam system.

8. The miniature decompression cocoon boiling machine according to claim 5, characterized in that: A drain outlet is also provided on the auxiliary tank (5), and the drain outlet is located below the auxiliary tank (5) in spatial position.

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