A centralized hydrogen peroxide evaporation device for reducing energy consumption

Abstract

The present invention discloses a centralized hydrogen peroxide evaporation device for reducing energy consumption, which includes a liquid storage tank for storing hydrogen peroxide liquid, a gas storage tank for storing compressed air, an evaporation mechanism for heating and evaporating hydrogen peroxide liquid into hydrogen peroxide gas, and a mixer communicated with the evaporation mechanism. The evaporation mechanism is provided with a nozzle and an air inlet pipe. Along the air inlet direction, the air inlet pipe is successively provided with an air inlet fan, a gas distribution mechanism and a heater. The gas distribution mechanism is connected to the mixer by a branch pipe. A supply pipe is connected between the nozzle and the liquid storage tank, and the nozzle is connected to the gas storage tank. This centralized hydrogen peroxide evaporation device has the advantages of being able to avoid condensation of hydrogen peroxide gas during transmission, being able to improve the hydrogen peroxide yield, being able to reduce the power requirement for heating, and being able to reduce energy consumption, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of food and drug packaging machinery and equipment, and in particular to a centralized hydrogen peroxide evaporation device with reduced energy consumption and its use method. Background Art

[0002] As a new type of sterilization method, hydrogen peroxide sterilization is widely used due to its good sterilization effect, environmental protection, and non-corrosive properties. Especially in the pharmaceutical industry, aseptic preparations are increasingly relying on hydrogen peroxide sterilization, such as aseptic inspection, aseptic culture, instrument and equipment sterilization, space sterilization, etc. In the field of aseptic filling production, due to the particularity of some products (such as intolerance to high temperatures), the terminal sterilization method cannot be used. Therefore, aseptic production has emerged, that is, by adding an aseptic isolator to the production line and sterilizing the inside of the isolator before production, and the most common sterilization method is hydrogen peroxide sterilization. And hydrogen peroxide sterilization is inseparable from a hydrogen peroxide generating device.

[0003] Traditional hydrogen peroxide evaporation devices mostly adopt the method of being integrated inside the isolator, that is, one or more hydrogen peroxide evaporation devices are configured inside each isolator. This integrated sterilization method still follows the past sterilization method of aseptic inspection isolators, and this method is suitable for occasions with a small sterilization space. However, for the sterilization of an aseptic production line, there are often many isolators and the sterilization space is very large. In this case, the number of evaporation devices required is often very large and the reliability is very low; moreover, the evaporation devices are often located in the static pressure chamber of the isolator, making maintenance inconvenient. In order to replace the disadvantages brought by integrated evaporation, the current common practice is to use a centralized evaporation device to centrally evaporate hydrogen peroxide and then separately transport it to each isolator cavity. However, in the existing centralized evaporation device, the concentration of the transported hydrogen peroxide gas is relatively high, which is easy to condense into liquid droplets when encountering cold, reducing the hydrogen peroxide recovery rate. At the same time, it increases the risk of equipment corrosion, and moreover, the power requirement for heating is relatively high, resulting in high energy consumption. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a centralized hydrogen peroxide evaporation device that can avoid condensation of hydrogen peroxide gas during transmission, can improve the hydrogen peroxide recovery rate, can reduce the power requirement for heating, and can reduce energy consumption.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A centralized hydrogen peroxide evaporation device for reducing energy consumption, comprising a liquid storage tank for storing hydrogen peroxide liquid, a gas storage tank for storing compressed air, an evaporation mechanism for heating and evaporating hydrogen peroxide liquid into hydrogen peroxide gas, and a mixer communicated with the evaporation mechanism. The evaporation mechanism is provided with a nozzle and an air inlet pipe. Along the air inlet direction, the air inlet pipe is sequentially provided with an air inlet fan, a gas distribution mechanism and a heater. The gas distribution mechanism and the mixer are connected with a branch pipe. A supply pipe is connected between the nozzle and the liquid storage tank, and the nozzle is connected with the gas storage tank.

[0007] As a further improvement of the above technical solution:

[0008] An air inlet valve is provided at the air inlet section of the air inlet pipe of the gas distribution mechanism, and a switching valve is provided on the branch pipe; a first temperature sensor is provided between the heater and the evaporation mechanism of the air inlet pipe, and a third temperature sensor is provided on the branch pipe.

[0009] A plurality of nozzles and supply pipes are provided and are connected in one-to-one correspondence. A liquid supply pump is provided on each supply pipe. One end of each supply pipe away from the nozzle is convergently connected with a needle tube that can be inserted into the liquid storage tank. One side of the needle tube is provided with a plugging and unplugging mechanism for plugging and unplugging the needle tube.

[0010] The plugging and unplugging mechanism includes a guide frame, a plugging and unplugging rod slidably arranged on the guide frame, and a plugging and unplugging driver for driving the plugging and unplugging rod to move. The plugging and unplugging rod is fixedly connected with the needle tube.

[0011] A weighing mechanism is supported below the liquid storage tank.

[0012] The centralized hydrogen peroxide evaporation device for reducing energy consumption further includes a box body. A partition plate is provided in the box body. The partition plate divides the interior of the box body into an upper installation chamber and a lower installation chamber. The evaporation mechanism and the mixer are arranged in the upper installation chamber, and the liquid storage tank, the gas storage tank and the liquid supply pump are arranged in the lower installation chamber.

[0013] An air inlet and an air outlet are provided at the top of the box body. The air inlet pipe is connected with the air inlet, and the air outlet is communicated with the mixer.

[0014] The mixer includes a shell and a filter arranged in the middle of the shell. The filter divides the interior of the shell into a first chamber and a second chamber. The evaporation mechanism and the branch pipe are both communicated with the first chamber, and an air outlet pipe is provided on the second chamber.

[0015] A second temperature sensor is arranged in the second chamber, and a connector for connecting with a hydrogen peroxide depth probe is provided on the shell.

[0016] The evaporation mechanism is communicated with the top of the first chamber, and the branch pipe is communicated with the bottom of the first chamber.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] In the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention, since the air distribution mechanism and the branch pipes are used to send normal-temperature air into the mixer, it can avoid the mixing of air with high-concentration hydrogen peroxide gas in the evaporation mechanism after being heated by the heater, reduce the energy consumption of the heater, and reduce energy waste and production costs; the air in the branch pipes enters the mixer in a normal-temperature state, and the branch pipes are not heated because after the high-temperature hydrogen peroxide gas is mixed for the first time in the evaporation mechanism, the dew point is reduced, which can effectively reduce the condensation at the moment of contact between the high-temperature hydrogen peroxide gas and the normal-temperature gas during the second mixing in the mixer. At the same time, the adoption of the mixer scheme can also effectively reduce the generation of condensation at the moment of contact between the two gases. This centralized hydrogen peroxide evaporation device can avoid the condensation of hydrogen peroxide gas during the transmission process, improve the hydrogen peroxide yield, reduce the power requirement for heating, and reduce energy consumption. Brief Description of the Drawings

[0019] Figure 1 is a perspective structural schematic diagram of the first perspective of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0020] Figure 2 is a perspective structural schematic diagram of the second perspective of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0021] Figure 3 is an internal structural schematic diagram of the first perspective of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0022] Figure 4 is an internal structural schematic diagram of the second perspective of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0023] Figure 5 is Figure 4 an enlarged view of part A in

[0024] Figure 6 is a structural schematic diagram of the mixer of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0025] Figure 7 is a schematic diagram of the principle of the centralized hydrogen peroxide evaporation device for reducing energy consumption of the present invention.

[0026] Each label in the figure represents:

[0027] 1. Liquid storage tank; 11. Gas storage tank; 2. Evaporation mechanism; 21. Nozzle; 22. Intake pipe; 221. Intake valve; 222. Intake fan; 223. Heater; 224. First temperature sensor; 225. Branch pipe; 226. On-off valve; 227. Third temperature sensor; 228. Air distribution mechanism; 3. Mixer; 31. Housing; 32. Filter; 33. First chamber; 331. Air outlet pipe; 34. Second chamber; 4. Supply pipe; 41. Liquid supply pump; 42. Syringe; 5. Insertion and extraction mechanism; 51. Guide frame; 52. Insertion and extraction rod; 53. Insertion and extraction driver; 6. Weighing mechanism; 7. Box body; 71. Partition board; 72. Upper installation chamber; 73. Lower installation chamber; 74. Intake port; 75. Air outlet; 8. Second temperature sensor; 9. Connector. Detailed implementation manners

[0028] The present invention will be further described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0029] Figures 1 to 7 An embodiment of the centralized hydrogen peroxide evaporation device for reducing energy consumption according to the present invention is shown. The centralized hydrogen peroxide evaporation device for reducing energy consumption includes a liquid storage tank 1 for storing hydrogen peroxide liquid, a gas storage tank 11 for storing compressed air, an evaporation mechanism 2 for heating and evaporating hydrogen peroxide liquid into hydrogen peroxide gas, and a mixer 3 communicated with the evaporation mechanism 2. A nozzle 21 and an intake pipe 22 are provided on the evaporation mechanism 2. Along the intake direction, an intake fan 222, an air distribution mechanism 228, and a heater 223 are sequentially provided on the intake pipe 22. A branch pipe 225 is connected between the air distribution mechanism 228 and the mixer 3, and a supply pipe 4 is connected between the nozzle 21 and the liquid storage tank 1. The nozzle 21 is connected to the gas storage tank 11. Specifically, the intake end of the evaporation mechanism 2 is connected to the intake pipe 22, and the outlet end of the evaporation mechanism 2 is connected to the mixer 3.

[0030] Clean air enters the air distribution mechanism 228 through the intake fan 222 and is divided into two paths by the air distribution mechanism 228. One path enters the evaporation mechanism 2 after being heated by the heater 223, and the other path enters the mixer 3 at room temperature through the branch pipe 225. The hydrogen peroxide solution in the liquid storage tank 1 is sprayed into the evaporation mechanism 2 through the nozzle 21 and evaporates in the evaporation mechanism 2 to form high-temperature and high-concentration hydrogen peroxide gas (with a very high dew point, assumed to be H1). After mixing with the air entering through the intake pipe 22, the concentration of the hydrogen peroxide gas decreases and the dew point also decreases. The reason for heating the air entering the evaporation mechanism 2 is to prevent condensation from occurring at the moment when the high-temperature and high-concentration hydrogen peroxide gas in the evaporation mechanism 2 comes into contact with the low-temperature air, and the temperature after mixing must be higher than the dew point value of the mixed gas (assumed to be H2). The mixed gas in the evaporation mechanism 2 continues to reach the mixer 3. The mixer 3 also has air coming from the branch pipe 225, and the air in the branch pipe 225 is not heated, and the air temperature is the indoor temperature. To ensure that the hydrogen peroxide gas does not condense after mixing with the gas coming from the branch pipe 225 in the mixer 3, it is necessary to ensure that the temperature of the mixed gas after mixing in the mixer 3 is higher than the dew point value after re-mixing (assumed to be H3).

[0031] The branch pipe 225 is not heated because after the high-temperature hydrogen peroxide gas is first mixed in the evaporation mechanism 2, the dew point decreases, which can effectively reduce the condensation at the moment when the high-temperature hydrogen peroxide gas comes into contact with the normal-temperature gas during the second mixing in the mixer 3. At the same time, adopting the scheme of the mixer 3 can also effectively reduce the generation of condensation when the two gases come into contact. The specific method is to first pass the hot air of the heater 223 to preheat the mixer 3 before the evaporation mechanism 2 works, and keep the connection point between the mixer 3 and the evaporation mechanism 2 and the connection point between the mixer 3 and the branch pipe 225 as far away as possible to prevent the two gases from directly contacting, which can effectively reduce the generation of condensation. At the same time, preheating the mixer 3 and each transmission pipeline by the air heated by the heater 223 can also reduce the condensation generated when the hydrogen peroxide gas contacts the pipe wall and the inner wall of the mixer 3.

[0032] Since the air distribution mechanism 228 and the branch pipe 225 are used to send normal-temperature air into the mixer 3, it is possible to avoid mixing the air that has all been heated by the heater 223 with the high-concentration hydrogen peroxide gas in the evaporation mechanism 2, reduce the energy consumption of the heater 223, and reduce energy waste and production costs. This centralized hydrogen peroxide evaporation device can avoid condensation of hydrogen peroxide gas during the transmission process, improve the hydrogen peroxide recovery rate, reduce the power requirement for heating, and reduce energy consumption.

[0033] In this embodiment, as Figure 1 、 Figure 3 and Figure 4As shown in the figure, an intake valve 221 is provided at the intake section of the intake pipe 22 in the air distribution mechanism 228, and a switching valve 226 is provided on the branch pipe 225; a first temperature sensor 224 is provided between the heater 223 and the evaporation mechanism 2 in the intake pipe 22, and a third temperature sensor 227 is provided on the branch pipe 225. Before the evaporation mechanism 2 operates, close the switching valve 226, open the intake valve 221, and turn on the heater 223 and the intake air blower 222 to introduce hot air into the evaporation mechanism 2 and the mixer 3 for preheating; when the evaporation mechanism 2 operates, open the switching valve 226, and at the same time, the nozzle 21 sprays hydrogen peroxide solution into the evaporation mechanism 2.

[0034] In this embodiment, as Figure 3 shown, both the nozzle 21 and the supply pipe 4 are provided with a plurality of them and are connected in one-to-one correspondence. A liquid supply pump 41 is provided on each supply pipe 4. One end of each supply pipe 4 away from the nozzle 21 converges and is connected to a syringe needle 42 that can be inserted into the liquid storage tank 1. A plugging and unplugging mechanism 5 for plugging and unplugging the syringe needle 42 is provided on one side of the syringe needle 42. The nozzle 21 is provided with a plurality of them, which can increase the supply amount of hydrogen peroxide to improve the evaporation efficiency of the evaporation mechanism 2. At the same time, it can avoid the blockage of the nozzle 21 resulting in shutdown, and only one nozzle 21 needs to work properly. A plugging and unplugging mechanism 5 for plugging and unplugging the syringe needle 42 is provided on one side of the syringe needle 42, which is convenient for replacing the liquid storage tank 1.

[0035] In this embodiment, as Figure 5 shown, the plugging and unplugging mechanism 5 includes a guide frame 51, a plugging and unplugging rod 52 slidably arranged on the guide frame 51, and a plugging and unplugging driver 53 for driving the movement of the plugging and unplugging rod 52. The plugging and unplugging rod 52 is fixedly connected to the syringe needle 42. The driver 53 is used to drive the plugging and unplugging rod 52 to move up and down, so that the plugging and unplugging rod 52 is pulled out from the top cover of the liquid storage tank 1 or inserted into the top cover of the liquid storage tank 1. The plugging and unplugging mechanism 5 has a simple structure and is convenient to operate.

[0036] In this embodiment, as Figure 4 shown, a weighing mechanism 6 is supported below the liquid storage tank 1. The weighing mechanism 6 is used to weigh the liquid storage tank 1 in real time, so as to calculate the discharge amount of hydrogen peroxide in the liquid storage tank 1.

[0037] In this embodiment, as Figure 1 shown, the centralized hydrogen peroxide evaporation device for reducing energy consumption further includes a box body 7. A partition plate 71 is provided in the box body 7. The partition plate 71 divides the interior of the box body 7 into an upper installation chamber 72 and a lower installation chamber 73. The evaporation mechanism 2 and the mixer 3 are arranged in the upper installation chamber 72, and the liquid storage tank 1, the gas storage tank 11, and the liquid supply pump 41 are arranged in the lower installation chamber 73. The partition plate 71 can prevent the heat in the upper installation chamber 72 from being dissipated into the lower installation chamber 73, which may affect the liquid storage tank 1, the gas storage tank 11, and the liquid supply pump 41, and improve safety.

[0038] In this embodiment, as Figure 1As shown, an air inlet 74 and an air outlet 75 are provided at the top of the box body 7. The air inlet pipe 22 is connected to the air inlet 74, and the air outlet 75 is communicated with the mixer 3. The air inlet 74 and the air outlet 75 are arranged at the top of the box body 7, forming a top-in and top-out air inlet and outlet mode, which has a compact structure, reasonable design, and can reduce wind resistance.

[0039] In this embodiment, as Figure 6 shown, the mixer 3 includes a housing 31 and a filter 32 provided in the middle of the housing 31. The filter 32 divides the inside of the housing 31 into a first chamber 33 and a second chamber 34. The evaporation mechanism 2 and the branch pipe 225 are both communicated with the first chamber 33, and an air outlet pipe 331 is provided on the second chamber 34. A second temperature sensor 8 is provided in the second chamber 34, and a connector 9 for connecting with a hydrogen peroxide depth probe is provided on the housing 31. The evaporation mechanism 2 is communicated with the top of the first chamber 33, and the branch pipe 225 is communicated with the bottom of the first chamber 33.

[0040] The using method of the centralized hydrogen peroxide evaporation device includes the following steps:

[0041] S1) Preheating: Before the evaporation mechanism 2 works, close the switch valve 226, open the intake valve 221 and turn on the heater 223 and the intake air blower 222 to introduce hot air into the evaporation mechanism 2 and the mixer 3 for preheating;

[0042] S2) Mixing: The evaporation mechanism 2 works, open the switch valve 226, and at the same time, the nozzle 21 sprays hydrogen peroxide liquid into the evaporation mechanism 2.

[0043] In step S2, the air volume q0 sent from the air inlet pipe 22 into the evaporation mechanism 2 is 40m 3 / h, the air volume q2 in the branch pipe 225 is 80m 3 / h, the air volume q1 of the compressed air sent from the gas storage tank 11 into the evaporation mechanism 2 is 10m 3 / h, the concentration n of hydrogen peroxide in the evaporation mechanism 2 is 35%, the evaporation rate v0 of hydrogen peroxide in the evaporation mechanism 2 is 45g / min, the air temperature entering the intake air blower 222 and the air temperature in the gas storage tank 11 are both set as Tc, Tc = 22°C, the air density ρ air = 1.197Kg / m 3 , the water density ρ1 = 1130Kg / m 3 , the specific heat of air C air = 1006 (J / (kg*°C)), and the specific heat of the hydrogen peroxide solution C2 = J / (kg*°C).

[0044] Theoretical calculation process:

[0045] I. Main parameters:

[0046] q0——The air volume sent into the evaporation mechanism 2 from the air inlet pipe 22, m 3 / h

[0047] q1——The air volume q1 of the compressed air sent from the air storage tank 11 into the evaporation mechanism 2, m 3 / h

[0048] q2——The air volume in the branch pipe 225, m 3 / h

[0049] ρ air ——Air density. At one standard atmosphere and 22°C, ρ air =1.197 Kg / m3

[0050] ρ1——The density of the 35% hydrogen peroxide solution. At 22°C, ρ1 = 1130 Kg / m 3

[0051] C air ——Specific heat of air, C air =1006 J / (kg*°C)

[0052] C1——Specific heat of the hydrogen peroxide solution, C1 = 3720 J / (kg*°C)

[0053] W c ——Moisture content of the clean gas, g / Kg

[0054] W o ——Moisture content of the gas heated by the heater 223, g / Kg

[0055] W1——Moisture content of the air discharged from the evaporation mechanism 2, g / Kg

[0056] W2——Moisture content of the gas in the evaporation mechanism 2 during the first mixing, g / Kg

[0057] W3——Moisture content of the gas in the mixer 3 during the second mixing, g / Kg

[0058] H1——Dew point value of the air discharged from the evaporation mechanism 2, °C

[0059] H2——Dew point value of the gas in the mixer 3, °C

[0060] H3——Dew point value of the gas in the mixer 10, °C

[0061] T c ——Temperature of the air entering the air distribution mechanism 228, taken as 22°C

[0062] T0——Temperature of the gas heated by the heater 223, assumed to be 100°C

[0063] T1——Temperature value of the air outlet of the evaporation mechanism 2, °C

[0064] T2——Temperature value of the gas inside the evaporation mechanism 2, °C

[0065] T3——Temperature value of the gas inside the mixer 3, °C

[0066] v0——Evaporation rate of hydrogen peroxide, g / min

[0067] Q1——Power required by the heater 223, KW

[0068] Q2——Power required by the evaporation mechanism 2, KW

[0069] First, set the following initial parameters:

[0070] Table 1 Initial parameters

[0071] <![CDATA[q1:]]> 10 <![CDATA[m 3 / h]]> <![CDATA[q0:]]> 40 <![CDATA[m 3 / h]]> <![CDATA[q2:]]> 80 <![CDATA[m 3 / h]]> <![CDATA[T c :]]> 22 ℃ Relative humidity: 55 %RH Hydrogen peroxide: 35 ％ <![CDATA[v0:]]> 45 g / min

[0072] Table 2 Basic physical parameters

[0073]

[0074] II. Anti-condensation calculation

[0075] The air in the gas storage tank 11 and the air provided by the intake air blower 222 are both clean air. According to the air temperature of 22 °C and the relative humidity of 55%, the moisture content W of the clean gas can be found on the psychrometric chart c = 9.1 g / Kg. Since the air is heated and the moisture content remains unchanged, so W0 = W c = 9.1 g / Kg.

[0076] Assume that the air volume flowing in and out of the evaporation mechanism 2 is constant, that is, equal to the air volume of the compressed air. Then the air outlet volume of the evaporation mechanism 2 is q1, q1 = 10 m 3 / h, and the evaporation rate v0 of hydrogen peroxide is 45 g / min. The moisture content W1 of the air outlet of the evaporator can be calculated according to the formula:

[0077] W1 = v0·60 / (v0·60 / 1000 + q1·ρ air ) + W0

[0078] It is obtained that: W1 = 193.1 g / Kg. Checking the psychrometric chart, the dew point H1 = 74.4 °C.

[0079] The temperature T1 of the gas = 150 °C, which is greater than the dew point value and will not condense.

[0080] The mixed gas inside the evaporation mechanism 2 is composed of the air outlet and the inlet air of the evaporation mechanism 2. The moisture content W2 of the mixed gas can be calculated according to their respective moisture contents and air volumes.

[0081] W2 = (W0q0 + W1q1) / (q0 + q1)

[0082] It is obtained that: W2 = 45.9 g / Kg. By referring to the psychrometric chart, the dew point H2 = 38.1 °C is obtained.

[0083] The temperature T2 of the mixed gas = (T0q0 + T1q1) / (q0 + q1) = 110 °C, which is higher than the dew point value H2, so condensation will not occur.

[0084] The mixed gas in the mixer 3 consists of the outlet air and the inlet air of the mixer 3. The moisture content W3 of the mixed gas can be calculated based on their respective moisture contents and air volumes.

[0085] W3 = (W2(q0 + q1) + W0q2) / (q0 + q1 + q2)

[0086] It is obtained that: W3 = 23.3 g / Kg. By referring to the psychrometric chart, the dew point H3 = 27.1 °C is obtained.

[0087] The temperature T3 of the mixed gas = (T c q3 + T2(q0 + q1)) / (q0 + q1 + q3) = 56 °C, which is higher than the dew point value H3, so condensation will not occur.

[0088] The calculation results are summarized as follows:

[0089] Table 3 Dew Point Calculation

[0090]

[0091] III. Function of the branch pipe 225: Calculation of the thermal power with and without a bypass

[0092] The total thermal power of the equipment consists of two parts: one is the power Q1 required by the heater 223; the other is the power Q2 required by the evaporation mechanism 2.

[0093] The heat Q2 required for the evaporation of the hydrogen peroxide solution is the same whether there is a branch pipe 225 or not. Among them, Q2 includes the sensible heat Q s absorbed by the compressed air and the latent heat Q L required for the hydrogen peroxide solution to change from liquid to gas:

[0094] Q2 = Q s + Q L

[0095] = q1·ρ air ·C air / 3600·(T1 - T c ) + 3·q1·1000 / 3600·(W1 - W c )

[0096] Obtained: Q2 = 1.96 KW.

[0097] 1. Power calculation of heater 223 with branch pipe 225:

[0098] Q1 = q0·ρ air ·C air / 3600·(T0 - T c )

[0099] Obtained: Q1 = 1.04 KW.

[0100] 2. Power calculation of heater without branch pipe 225:

[0101] Q′1 = (q0 + q2)·ρ air ·C air / 3600·(T0 - T c )

[0102] Obtained: Q′1 = 3.12 KW.

[0103] It can be seen that when there is no branch pipe 225, the power of heater 223 is 3 times that when there is branch pipe 225.

[0104] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above-disclosed technical content, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A centralized hydrogen peroxide evaporation device for reducing energy consumption, characterized in that: It includes a liquid storage tank (1) for storing hydrogen peroxide solution, a gas storage tank (11) for storing compressed air, an evaporation mechanism (2) for heating and evaporating the hydrogen peroxide liquid into hydrogen peroxide gas, and a mixer (3) communicated with the evaporation mechanism (2). The evaporation mechanism (2) is provided with a nozzle (21) and an air inlet pipe (22). Along the air inlet direction, the air inlet pipe (22) is successively provided with an air inlet fan (222), a gas distribution mechanism (228), and a heater (223). The gas distribution mechanism (228) and the mixer (3) are connected by a branch pipe (225). A supply pipe (4) is connected between the nozzle (21) and the liquid storage tank (1). The nozzle (21) is connected to the gas storage tank (11). One way of air from the gas distribution mechanism (228) enters the evaporation mechanism (2) after being heated by the heater (223), and the other way of air enters the mixer (3) through the branch pipe (225).

2. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 1, wherein: An air inlet valve (221) is provided at the air inlet section of the air inlet pipe (22) for the gas distribution mechanism (228), and a switch valve (226) is provided on the branch pipe (225). A first temperature sensor (224) is provided between the heater (223) and the evaporation mechanism (2) on the air inlet pipe (22), and a third temperature sensor (227) is provided on the branch pipe (225).

3. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 1, characterized in that: Both the nozzle (21) and the supply pipe (4) are provided with a plurality of them and are connected in one-to-one correspondence. A liquid supply pump (41) is provided on each supply pipe (4). The ends of each supply pipe (4) far from the nozzle (21) are convergently connected with a syringe needle (42) that can be inserted into the liquid storage tank (1). A plugging and unplugging mechanism (5) for plugging and unplugging the syringe needle (42) is provided on one side of the syringe needle (42).

4. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 3, wherein: The plugging and unplugging mechanism (5) includes a guiding frame (51), a plugging and unplugging rod (52) slidably arranged on the guiding frame (51), and a plugging and unplugging driver (53) for driving the plugging and unplugging rod (52) to move. The plugging and unplugging rod (52) is fixedly connected to the syringe needle (42).

5. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 1, wherein: A weighing mechanism (6) is supported below the liquid storage tank (1).

6. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 1, characterized in that: The centralized hydrogen peroxide evaporation device for reducing energy consumption further includes a box body (7). A partition plate (71) is provided in the box body (7). The partition plate (71) divides the interior of the box body (7) into an upper installation chamber (72) and a lower installation chamber (73). The evaporation mechanism (2) and the mixer (3) are arranged in the upper installation chamber (72), and the liquid storage tank (1), the gas storage tank (11), and the liquid supply pump (41) are arranged in the lower installation chamber (73).

7. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 6, characterized in that: An air inlet (74) and an air outlet (75) are provided at the top of the box body (7). The air inlet pipe (22) is connected to the air inlet (74), and the air outlet (75) is communicated with the mixer (3).

8. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to any one of claims 1 to 7, characterized in that: The mixer (3) includes a housing (31) and a filter (32) arranged in the middle of the housing (31). The filter (32) divides the interior of the housing (31) into a first chamber (33) and a second chamber (34). The evaporation mechanism (2) and the branch pipe (225) are both communicated with the first chamber (33), and an air outlet pipe (331) is provided on the second chamber (34).

9. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 8, wherein: A second temperature sensor (8) is provided in the second chamber (34), and a connector (9) for connecting to a hydrogen peroxide depth probe is provided on the housing (31).

10. The centralized hydrogen peroxide evaporation device for reducing energy consumption according to claim 8, wherein: The evaporation mechanism (2) communicates with the top of the first chamber (33), and the branch pipe (225) communicates with the bottom of the first chamber (33).

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