A steam recycling system for a bacterial rod sterilization chamber

Abstract

The application discloses a kind of steam recycling system for sterilization room of fungus stick, comprising: gas-liquid separator;Hot water pump;Atomizer, for the high-temperature water transported by hot water pump atomization;Mixing mechanism, for the water vapor separated by gas-liquid separator and the liquid drop after atomization of atomizer, temperature is uniformly raised to water vapor;Steam heat pump, for the temperature uniform water vapor and liquid drop mixture discharged by mixing mechanism vaporization and pressure, form the water vapor that meets the steam recycling condition;Electric valve, control the flow rate of water vapor separated by gas-liquid separator and high-temperature water, by the setting and common cooperation of gas-liquid separator, hot water pump, atomizer and steam heat pump etc., successfully realize the waste steam discharged from sterilization pot is converted into water vapor that meets the steam recycling condition, greatly improve the utilization efficiency of steam, so that the sterilization energy consumption of sterilization pot is significantly reduced, each component in system is simply and efficiently arranged.

Description

Technical Field

[0001] This invention relates to the field of steam recovery and reuse technology, specifically to a steam recovery and reuse system for a mushroom cultivation sterilization room. Background Technology

[0002] The mushroom substrate sterilization room is a place specifically used to sterilize mushroom substrates, thereby killing all microorganisms that may exist in the substrates, including vegetative cells and spores, to ensure that the substrates are not contaminated by other microorganisms during the subsequent cultivation of edible fungi.

[0003] Currently, the most common sterilization method used in mushroom spawn sterilization rooms is high-pressure steam sterilization. After the mushroom spawn is placed into the sterilizer, high-temperature and high-pressure steam is introduced into it, causing the temperature and pressure inside the sterilizer to rise rapidly. The sterilization process can usually be completed in a short time. Due to its high sterilization efficiency and good sterilization effect, it is widely used.

[0004] However, after sterilization, the waste steam needs to be vented. During this process, the waste steam is often wasted in the sterilization room. The waste steam recovery efficiency is low, resulting in high energy consumption for sterilization, which cannot meet the growing demand for energy conservation and environmental protection. Summary of the Invention

[0005] The purpose of this invention is to provide a steam recovery and reuse system for mushroom substrate sterilization rooms to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A steam recovery and reuse system for a mushroom substrate sterilization chamber includes: a gas-liquid separator for separating waste steam discharged from the sterilizer in the sterilization chamber into high-temperature water and water vapor; a hot water pump for conveying the high-temperature water separated by the gas-liquid separator; an atomizer for atomizing the high-temperature water conveyed by the hot water pump; a mixing mechanism for mixing the water vapor separated by the gas-liquid separator and the high-temperature droplets atomized by the atomizer to uniformly raise the temperature of the water vapor; a steam heat pump for vaporizing and pressurizing the uniformly heated water vapor and droplet mixture discharged from the mixing mechanism to form water vapor that meets the conditions for steam recycling; and an electric valve for controlling the flow rate of the water vapor and high-temperature water separated by the gas-liquid separator.

[0008] The gas-liquid separator is connected to an upper pipe, a lower pipe, and an inlet pipe. The inlet pipe is used to receive waste steam discharged from the sterilizer. The upper pipe is used to transport water vapor separated by the gas-liquid separator. The lower pipe is used to transport high-temperature water separated by the gas-liquid separator. There are two electric valves, one on the upper pipe and one on the lower pipe. The hot water pump is located on the lower pipe and at the front end of the electric valve. The atomizer is located on the lower pipe and at the rear end of the electric valve. The ends of the upper and lower pipes away from the gas-liquid separator are connected to a mixing mechanism. The mixing mechanism is connected to a steam heat pump through a mixing pipe. The steam heat pump is connected to an outlet pipe for transporting water vapor that meets the conditions for steam recycling to the steam inlet pipe of the sterilizer.

[0009] Preferably, the mixing mechanism includes a side column cavity disposed on its inner sidewall, a limiting baffle disposed on the inner top surface of the mixing mechanism facing downward, a bottom connector disposed at the bottom end of the mixing mechanism, an inner column cavity disposed between the side column cavity and the limiting baffle inside the mixing mechanism, a first connecting pipe and a second connecting pipe disposed on the upper sidewall of the inner column cavity, a side connector disposed on the sidewall of the limiting baffle, and a ring head disposed at the bottom end of the side column cavity.

[0010] Preferably, the first connecting pipe passes through the side wall of the mixing mechanism and the side wall of the side column cavity, the second connecting pipe passes through the side wall of the side column cavity to connect the inner column cavity and the side column cavity, and the side connector passes through the inner column cavity, the side column cavity and the side wall of the mixing mechanism.

[0011] Preferably, the lower part of the mixing mechanism is funnel-shaped, the lower part of the side column cavity is funnel-shaped, the lower part of the inner column cavity is closed-ended funnel-shaped, and the lower part of the limiting baffle is funnel-shaped.

[0012] Preferably, the ring head is in communication with the interior of the side column cavity.

[0013] Preferably, the bottom connector is detachably and fixedly connected to the end of the upper pipe away from the gas-liquid separator, and the first connecting pipe is detachably and fixedly connected to the end of the lower pipe away from the gas-liquid separator.

[0014] Preferably, the side connector is detachably fixed to the end of the mixing pipe away from the steam heat pump.

[0015] Preferably, the ring head is set horizontally.

[0016] Preferably, the ring head is tilted upwards.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up and cooperating with gas-liquid separators, hot water pumps, atomizers and steam heat pumps, the waste steam discharged from the sterilizer is successfully converted into water steam that meets the conditions for steam recycling, which greatly improves the utilization efficiency of steam and significantly reduces the sterilization energy consumption of the sterilizer. The various components in the system are simple and efficient, with low operating costs and easy operation.

[0019] 2. Through the design of the mixing mechanism, this system ensures that high-temperature droplets are uniformly ejected from the ring head and mixed with water vapor. Sufficient time is allowed for heat transfer between the high-temperature droplets and water vapor, successfully achieving uniform heating of the water vapor. At the same time, it also prevents water vapor from condensing and agglomerating into large water droplets on the side walls of the inner or side column cavity, thereby enhancing the working intensity of the steam heat pump and greatly improving the stability of the system.

[0020] 3. This system utilizes a horizontally positioned ring head to prevent water vapor from entering the side column cavity. At the same time, when water vapor flows through the bottom connector, the air pressure outside the ring head decreases, causing high-temperature droplets in the side column cavity to be ejected from the ring head. This makes the mixing mechanism operate more smoothly, and the mixing of high-temperature droplets and water vapor is more thorough, further improving the stability of the system and thus enhancing the recovery and utilization of waste steam. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the system structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the mixing mechanism in this invention;

[0024] Figure 3 This is a schematic diagram of the connection between the side column cavity and the ring head in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram showing the connection between the inner column cavity and the first connecting pipe and the second connecting pipe in this invention;

[0026] Figure 5 This is a schematic diagram of the connection between the side column cavity and the ring head in another embodiment of the present invention.

[0027] In the diagram: 1. Gas-liquid separator; 101. Upper pipe; 102. Lower pipe; 103. Inlet pipe; 2. Hot water pump; 3. Atomizer; 4. Mixing mechanism; 401. Bottom connector; 402. Side column cavity; 403. Inner column cavity; 404. First connecting pipe; 405. Second connecting pipe; 406. Limiting baffle; 407. Side connector; 408. Ring head; 5. Steam heat pump; 501. Outlet pipe; 6. Electric valve. Detailed Implementation

[0028] 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 some embodiments of the present invention, and not all embodiments. 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.

[0029] Reference Figure 1-4 As shown, this invention is a steam recovery and reuse system for a mushroom cultivation sterilization chamber, comprising: a gas-liquid separator 1, used to separate waste steam discharged from the sterilizer in the sterilization chamber into high-temperature water and water vapor; a hot water pump 2, used to transport the high-temperature water separated by the gas-liquid separator 1; an atomizer 3, used to atomize the high-temperature water transported by the hot water pump 2; it should be noted that the working principles of the gas-liquid separator 1, the hot water pump 2, and the atomizer 3 are all existing technologies and will not be elaborated here; a mixing mechanism 4, used to mix the water vapor separated by the gas-liquid separator 1 and the high-temperature droplets atomized by the atomizer 3, to uniformly heat the water vapor; and a steam heat pump 5. The mixing mechanism 4 is used to vaporize and pressurize the uniformly heated water vapor and high-temperature droplet mixture discharged from the mixing mechanism 4 to form water vapor that meets the conditions for steam circulation. It should be noted that the steam heat pump 5 can be a motor-driven twin-screw compressor, which is existing technology and will not be elaborated on here. The electric valve 6 controls the flow rate of water vapor and high-temperature water separated by the gas-liquid separator 1, so that the temperature of the water vapor and high-temperature droplets entering the mixing mechanism 4 can meet the requirements of the steam heat pump 5 after uniform mixing, thereby better forming water vapor that meets the conditions for steam circulation through the steam heat pump 5, thereby improving the utilization efficiency of waste gas.

[0030] Reference Figure 1 The gas-liquid separator 1 is connected to an upper pipe 101, a lower pipe 102, and an inlet pipe 103. The inlet pipe 103 is used to receive the waste steam discharged from the sterilizer. The upper pipe 101 is used to transport the water vapor separated by the gas-liquid separator 1. The lower pipe 102 is used to transport the high-temperature water separated by the gas-liquid separator 1. There are two electric valves 6, which are respectively installed on the upper pipe 101 and the lower pipe 102. The hot water pump 2 is installed on the lower pipe 102 and is located at the front end of the electric valve 6. The atomizer 3 is installed on the lower pipe 102 and is located at the rear end of the electric valve 6. The ends of the upper pipe 101 and the lower pipe 102 away from the gas-liquid separator 1 are both connected to the mixing mechanism 4. The mixing mechanism 4 is connected to the steam heat pump 5 through a mixing pipe. The steam heat pump 5 is connected to an outlet pipe 501, which is used to transport water vapor that meets the conditions for steam circulation to the steam inlet pipe of the sterilizer.

[0031] This system, through the setup and collaboration of gas-liquid separator 1, hot water pump 2, atomizer 3, and steam heat pump 5, successfully achieves the rapid and stable conversion of waste steam discharged from the sterilizer into water steam that meets the conditions for steam recycling, greatly improving the utilization efficiency of steam and significantly reducing the sterilization energy consumption of the sterilizer. The various components in the system are simple and efficient, with low operating costs and easy operation.

[0032] Reference Figure 2 As shown, in an optional embodiment, the mixing mechanism 4 includes a side column cavity 402 disposed on its inner sidewall. A limiting baffle 406 is disposed on the inner top surface of the mixing mechanism 4 facing downwards. A bottom connector 401 is disposed at the bottom end of the mixing mechanism 4. An inner column cavity 403 is disposed inside the mixing mechanism 4 between the side column cavity 402 and the limiting baffle 406. A first connecting pipe 404 and a second connecting pipe 405 are disposed on the upper sidewall of the inner column cavity 403. A side connector 407 is disposed on the sidewall of the limiting baffle 406. A ring head 408 is disposed at the bottom end of the side column cavity 402, and the ring head 408 communicates with the interior of the side column cavity 402. It should be noted that the ring head 408 is disposed around the top of the bottom connector 401, and the ring head 408 is composed of upper and lower ring plates. Figure 3 As shown, both the upper and lower ring plates are fixedly connected to the upper and lower ends of the bottom of the side column cavity 402.

[0033] In operation, the waste steam discharged from the sterilizer enters the gas-liquid separator 1 through the inlet pipe 103, where it is separated into high-temperature water and water vapor. The high-temperature water enters the lower pipe 102, and the water vapor enters the upper pipe 101. After passing through the hot water pump 2 and the electric valve 6, the high-temperature water is transformed into high-temperature droplets. Due to the mixing mechanism 4, the high-temperature droplets enter the inner column cavity 403 through the first connecting pipe 404, causing the side wall temperature of the inner column cavity 403 to rise. The high-temperature droplets then enter the side column cavity 402 through the second connecting pipe 405, causing the side wall temperature of the side column cavity 402 to rise as well. Finally, the droplets are uniformly ejected from the ring head 408. Simultaneously, the water vapor injected into the mixing mechanism 4 from the bottom connecting head 401 collides uniformly with the high-temperature droplets ejected from the ring head 408, resulting in heat transfer and carrying the high-temperature droplets into the space between the inner column cavity 403 and the side column cavity 402. In the region, the side walls of the inner column cavity 403 and the side column cavity 402 are at a high temperature due to the flow of high-temperature droplets. This allows sufficient time for heat transfer between the high-temperature droplets and water vapor, while preventing water vapor from condensing on the side walls of the inner column cavity 403 or the side column cavity 402 due to low temperature and agglomerating into large water droplets. This enhances the working intensity of the steam heat pump 5 and greatly improves the stability of the system. The high-temperature droplets and water vapor continue to pass through the gap between the limiting baffle 406 and the inner column cavity 403, and enter the limiting baffle 406 from the bottom. Finally, a uniformly heated mixture of water vapor and droplets is output to the steam heat pump 5 through the side connector 407. The steam heat pump 5 vaporizes and pressurizes the uniformly heated mixture of water vapor and high-temperature droplets discharged from the mixing mechanism 4 to form water vapor that meets the conditions for steam circulation and is transported to the steam inlet pipe of the sterilizer through the outlet pipe 501.

[0034] It should be further explained that the first connecting pipe 404 passes through the side wall of the mixing mechanism 4 and the side wall of the side column cavity 402, the second connecting pipe 405 passes through the side wall of the side column cavity 402 to connect the inner column cavity 403 and the side column cavity 402, and the side connector 407 passes through the inner column cavity 403, the side column cavity 402 and the side wall of the mixing mechanism 4. Meanwhile, the lower part of the mixing mechanism 4 is funnel-shaped, the lower part of the side column cavity 402 is funnel-shaped, and the lower part of the inner column cavity 403 is a closed funnel-shaped structure. (Refer to...) Figure 2 As shown, the bottom of the inner cylindrical cavity 403 is closed, and the lower part of the limiting baffle 406 is configured as a funnel shape, as shown in the figure. Figure 2 As shown, the upper part of the limiting baffle 406 is cylindrical.

[0035] Reference Figure 3As shown, in an optional embodiment, the ring head 408 is horizontally positioned to prevent water vapor from rushing into the side column cavity 402. At the same time, when water vapor flows through the bottom connector 401, the gas flow rate outside the ring head 408 is fast and the gas pressure is reduced, thereby causing the high-temperature droplets in the side column cavity 402 to be ejected from the ring head 408. This makes the operation of the mixing mechanism 4 smoother, the mixing of high-temperature droplets and water vapor more thorough, and further improves the stability of the system, thereby improving the recovery and utilization of waste steam.

[0036] Reference Figure 5 As shown, in an optional embodiment, the ring head 408 is tilted upwards to prevent water vapor from rushing into the side column cavity 402, while also causing the high-temperature droplets ejected from the ring head 408 to tilt upwards. The contact surface between the upward-ejected water vapor and the high-temperature droplets is expanded, thereby promoting temperature transfer between them. This makes the temperature of the water vapor and droplet mixture output from the side connector 407 more uniform, greatly improving the stability of the system and ultimately improving the system's efficiency in recovering and utilizing waste steam.

[0037] It should be noted that the bottom connector 401 is detachably and fixedly connected to the end of the upper pipe 101 away from the gas-liquid separator 1, the first connecting pipe 404 is detachably and fixedly connected to the end of the lower pipe 102 away from the gas-liquid separator 1, and the side connector 407 is detachably and fixedly connected to the end of the mixing pipe away from the steam heat pump 5.

[0038] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A steam recovery and reuse system for a bacterial rod sterilization chamber, characterized by, The utility model relates to a steam recycling device for sterilization pot, which comprises: a gas-liquid separator (1) for separating the exhaust steam discharged by the sterilization pot in the sterilization chamber into high-temperature water and water vapor; a hot water pump (2) for conveying the high-temperature water separated by the gas-liquid separator (1); an atomizer (3) for atomizing the high-temperature water conveyed by the hot water pump (2); a mixing mechanism (4) for mixing the water vapor separated by the gas-liquid separator (1) and the high-temperature liquid droplets atomized by the atomizer (3) to uniformly heat the water vapor; a steam heat pump (5) for vaporizing and pressurizing the mixture of the water vapor and the liquid droplets uniformly heated by the mixing mechanism (4) to form water vapor meeting the conditions for steam recycling; an electric valve (6) for controlling the flow rate of the water vapor and the high-temperature water separated by the gas-liquid separator (1). The gas-liquid separator (1) is connected with an upper pipeline (101), a lower pipeline (102) and an inlet pipeline (103), the inlet pipeline (103) is used for receiving the exhaust steam discharged by the sterilization pot, the upper pipeline (101) is used for conveying the water vapor separated by the gas-liquid separator (1), the lower pipeline (102) is used for conveying the high-temperature water separated by the gas-liquid separator (1), the electric valve (6) is provided with two, which are arranged on the upper pipeline (101) and the lower pipeline (102) respectively, the hot water pump (2) is arranged on the lower pipeline (102) and located at the front end of the electric valve (6), the atomizer (3) is arranged on the lower pipeline (102) and located at the rear end of the electric valve (6), the ends of the upper pipeline (101) and the lower pipeline (102) away from the gas-liquid separator (1) are connected with the mixing mechanism (4), the mixing mechanism (4) is connected with the steam heat pump (5) through a mixing pipeline, and the steam heat pump (5) is connected with an outlet pipeline (501) for conveying the water vapor meeting the conditions for steam recycling to the steam inlet pipeline of the sterilization pot.

2. The steam recovery and reuse system for a bacteria stick sterilization chamber according to claim 1, wherein The mixing mechanism (4) comprises a side column cavity (402) arranged on the inner side wall thereof, the inner top surface of the mixing mechanism (4) is downwardly provided with a limiting baffle (406), the bottom end of the mixing mechanism (4) is provided with a bottom connecting head (401), the inner portion of the mixing mechanism (4) between the side column cavity (402) and the limiting baffle (406) is provided with an inner column cavity (403), the upper side wall of the inner column cavity (403) is provided with a first connecting pipeline (404) and a second connecting pipeline (405), the side wall of the limiting baffle (406) is provided with a side connecting head (407), and the bottom end of the side column cavity (402) is provided with a ring head (408).

3. The steam recovery and reuse system for a bacteria stick sterilization chamber of claim 2, wherein, The first connecting pipeline (404) penetrates through the side wall of the mixing mechanism (4) and the side wall of the side column cavity (402), the second connecting pipeline (405) penetrates through the side wall of the side column cavity (402) to communicate the inner column cavity (403) with the side column cavity (402), and the side connecting head (407) penetrates through the side wall of the inner column cavity (403), the side wall of the side column cavity (402) and the mixing mechanism (4).

4. The steam recovery and reuse system for a bacteria stick sterilization chamber of claim 3, wherein, The lower part of the mixing mechanism (4) is funnel-shaped, the lower part of the side column cavity (402) is funnel-shaped, the lower part of the inner column cavity (403) is closed funnel-shaped, and the lower part of the limiting baffle (406) is funnel-shaped.

5. The steam recovery and reuse system for a bacteria stick sterilization chamber of claim 4, wherein, The ring head (408) is in communication with the inside of the side column cavity (402).

6. The steam recovery and recycling system for a bacteria stick sterilization chamber of claim 5, wherein, The bottom connecting head (401) is detachably fixedly connected with one end of the upper pipeline (101) away from the gas-liquid separator (1), and the first connecting pipe (404) is detachably fixedly connected with one end of the lower pipeline (102) away from the gas-liquid separator (1).

7. The steam recovery and recycling system for a bacteria stick sterilization chamber of claim 6, wherein, The side connecting head (407) is detachably fixedly connected with one end of the mixing pipe away from the steam heat pump (5).

8. The steam recovery and recycling system for a bacteria stick sterilization chamber of claim 5, wherein, The ring head (408) is horizontally arranged.

9. The steam recovery and recycling system for a bacteria stick sterilization chamber of claim 5, wherein, The ring head (408) is arranged upwardly and obliquely.

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