Flowmeter drying bottle and fermentation tail gas analysis system comprising same

Abstract

The utility model provides a flowmeter drying bottle and a fermentation tail gas analysis system comprising the flowmeter drying bottle. A closed space is formed in a bottle body of the flowmeter drying bottle; the air inlet pipe is inserted into the closed space, a first air inlet of the air inlet pipe is located outside the bottle body, and a first air outlet of the air inlet pipe is located in the closed space; the rotor flow meter is vertically arranged in the closed space, and a first air outlet of the rotor flow meter is communicated with the second air inlet; the air outlet pipe is inserted into the closed space, and a third air outlet of the air outlet pipe is located outside the bottle body; the closed space is filled with the filter body, the third air inlet is buried in the filter body, and the second air outlet is located above the filter body. The flowmeter drying bottle can monitor the flow of fermentation tail gas in real time while filtering the fermentation tail gas, so that the quality and flow stability of the fermentation tail gas entering a tail gas analyzer are ensured, and the accuracy of tail gas analysis data of the tail gas analyzer is ensured.

Description

Technical Field

[0001] The utility model relates to a flow meter drying bottle and a fermentation tail gas analysis system comprising the same. Background Art

[0002] The fermentation tail gas analyzer is a device used to monitor and analyze the tail gas composition during the fermentation process. It is mainly used to detect the concentration of carbon dioxide (CO2) and oxygen (O2) in real time, and evaluate the growth and metabolic status of microorganisms by calculating relevant parameters such as CO2 release rate (CER), oxygen uptake rate (OUR) and respiratory quotient (RQ).

[0003] Fermentation tail gas analyzers are widely used, mainly to optimize fermentation processes and improve product quality and yield. By real-time monitoring and analysis of tail gas components, environmental conditions during the fermentation process can be effectively controlled to ensure that microorganisms grow in the best conditions, thereby improving the quality and yield of the final product.

[0004] In order to ensure the accuracy of the analysis data of the fermentation exhaust gas analyzer, the air of the fermentation exhaust gas analyzer needs to be dried and the flow rate needs to be monitored. Therefore, it is necessary to constantly unplug the air intake pipe and put it in water to see if there are bubbles, so as to determine whether the pipe is blocked by condensed water. The operation is very inconvenient. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the fermentation tail gas analyzer in the prior art that the air intake pipe is easily blocked and the flow cannot be monitored, and to provide a flow meter drying bottle and a fermentation tail gas analysis system including the same.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a flow meter drying bottle, which comprises a bottle body, an air inlet pipe, a rotor flowmeter, an air outlet pipe and a filter body, wherein a closed space is formed in the bottle body; the air inlet pipe is inserted into the closed space, and two ends of the air inlet pipe are respectively provided with a first air inlet and a first air outlet, the first air inlet is located outside the bottle body, and the first air outlet is located in the closed space; the rotor flowmeter is vertically arranged in the closed space, and the rotor flowmeter is provided with a second air inlet and a second air outlet, the second air inlet is located below the second air outlet, and the first air outlet is communicated with the second air inlet; the air outlet pipe is inserted into the closed space, and two ends of the air outlet pipe are respectively provided with a third air inlet and a third air outlet, the third air inlet is located in the closed space, and the third air outlet is located outside the bottle body; the filter body is used for filtering gas, the filter body is filled in the closed space, the third air inlet is buried in the filter body, and the second air outlet is located above the filter body.

[0008] In the present technical solution, through the structural setting of the flow meter drying bottle, the flow meter drying bottle can not only filter the fermentation exhaust gas, but also monitor the flow of the fermentation exhaust gas in real time, thereby ensuring the quality and flow stability of the fermentation exhaust gas entering the exhaust gas analyzer.

[0009] Preferably, the filter body comprises a water absorbing layer, and the water absorbing layer is made of a water absorbing material.

[0010] In this technical solution, the water absorption layer is used to absorb moisture from the fermentation tail gas.

[0011] Preferably, the water absorbing material is color-changing silica gel, montmorillonite desiccant, activated carbon or calcium chloride.

[0012] In the present technical solution, when the above-mentioned water-absorbing material is used in the water-absorbing layer, it can achieve a better effect of absorbing moisture from the fermentation tail gas.

[0013] Preferably, the filter body further comprises an oil absorbing layer, which is made of an oil absorbing material and covers the water absorbing layer.

[0014] In this technical solution, the oil absorption layer is used to absorb the oil pollution in the fermentation tail gas.

[0015] Preferably, the oil-absorbing material is wood fiber, bamboo fiber, flax fiber, cotton fiber, kapok fiber, carbon fiber, polylactic acid modified material-zirconium phosphate, kapok fiber polylactic acid or chitosan.

[0016] In the present technical solution, when the above oil absorbing material is used in the oil absorbing layer, it can achieve a better effect of absorbing the oil pollution in the fermentation tail gas.

[0017] Preferably, the volume ratio of the water absorbing material to the oil absorbing material is 1:0.3-0.5.

[0018] In the technical solution, the filter bodies of water-absorbing material and oil-absorbing material are arranged within this ratio range, which can ensure better water-absorbing and oil-absorbing effects.

[0019] Preferably, the bottle body is provided with a transparent area facing the scale of the rotor flowmeter.

[0020] In the present technical solution, the transparent area is set so that the experimenter can observe the flow monitored by the rotor flowmeter at any time.

[0021] Preferably, the distance between the third air inlet and the bottom of the enclosed space is 2-10 mm.

[0022] In the present technical solution, the third air inlet is provided so that the fermentation tail gas can pass through a longer distance in the filter body, so that the fermentation tail gas entering the air outlet pipe can be fully filtered by the filter body.

[0023] Preferably, the second air inlet is located in the filter body.

[0024] In this technical solution, the second air inlet is located inside the filter body, so that the rotor flow body is inserted into the filter body; on the one hand, the filter body can play a role in fixing the rotor flowmeter to a certain extent; on the other hand, the structure of the flowmeter drying bottle can be made more compact, and the volume of the flowmeter drying bottle can be reduced.

[0025] The utility model also provides a fermentation tail gas analysis system, including an air source, a flow meter drying bottle and an exhaust gas analyzer, wherein the air source is used to provide the fermentation tail gas to be analyzed; the flow meter drying bottle is as described in the above technical scheme, and the first air inlet is connected to the air outlet of the air source; the air inlet of the exhaust gas analyzer is connected to the third air outlet of the flow meter drying bottle.

[0026] In this technical solution, the fermentation tail gas generated by the gas source is filtered by the flow meter drying bottle before entering the tail gas analyzer, which ensures the quality of the fermentation tail gas entering the tail gas analyzer and the accuracy of the tail gas analysis data of the tail gas analyzer. At the same time, the rotor flowmeter of the flow meter drying bottle can monitor the flow of the fermentation tail gas at any time, ensuring the stability of the flow of the fermentation tail gas entering the tail gas analyzer.

[0027] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0028] The positive and progressive effects of the utility model are:

[0029] Through the structural setting of the above-mentioned flow meter drying bottle, the flow meter drying bottle can not only filter the fermentation exhaust gas, but also monitor the flow of the fermentation exhaust gas in real time, thereby ensuring the quality and flow stability of the fermentation exhaust gas entering the exhaust gas analyzer; when the flow meter drying bottle is applied to the fermentation exhaust gas analysis system, the accuracy of the exhaust analysis data of the exhaust gas analyzer is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the flow meter drying bottle of the utility model.

[0031] Figure 2 This is a schematic diagram of the structure of the fermentation tail gas analysis system of the utility model.

[0032] Description of Reference Numerals

[0033] Flow meter drying bottle 1

[0034] Bottle 11

[0035] Confined Space 111

[0036] Bottle 112

[0037] Bottle cap 113

[0038] Intake pipe 12

[0039] First air inlet 121

[0040] First air outlet 122

[0041] Rotor flow meter 13

[0042] Second air inlet 131

[0043] Second air outlet 132

[0044] Conical tube 133

[0045] Float 134

[0046] Flow control valve 135

[0047] Exhaust pipe 14

[0048] The third air inlet 141

[0049] The third air outlet 142

[0050] Filter 15

[0051] Water absorption layer 151

[0052] Oil absorbing layer 152

[0053] Gas source 2

[0054] Exhaust gas analyzer 3 DETAILED DESCRIPTION

[0055] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0056] like Figure 1The figure shows an embodiment of the flow meter drying bottle of the utility model. The flow meter drying bottle 1 comprises a bottle body 11, an air inlet pipe 12, a rotor flowmeter 13, an air outlet pipe 14 and a filter body 15. A closed space 111 is formed in the bottle body 11; the air inlet pipe 12 is inserted into the closed space 111, and a first air inlet port 121 and a first air outlet port 122 are respectively provided at both ends of the air inlet pipe 12. The first air inlet port 121 is located outside the bottle body 11, and the first air outlet port 122 is located in the closed space 111; the rotor flowmeter 13 is vertically arranged in the closed space 111, and the rotor flowmeter 13 is provided with a second air inlet port 131, a second air outlet port 132, and a second air inlet port 131 is provided at the bottom of the bottle body 11; the rotor flowmeter 13 is vertically arranged in the closed space 111, and the rotor flowmeter 13 is provided with a second air inlet port 131, a second air outlet port 132, and a second air inlet port 132 is provided at the bottom of the bottle body 11; the rotor flowmeter 13 is vertically arranged in the closed space 111, and the rotor flowmeter 13 is provided with a second air inlet port 131, a second air outlet port 132, and a second air inlet port 131 ... The air inlet 131 is located below the second air outlet 132, and the first air outlet 122 is communicated with the second air inlet 131; the air outlet pipe 14 is inserted into the enclosed space 111, and the third air inlet 141 and the third air outlet 142 are respectively provided at both ends of the air outlet pipe 14, the third air inlet 141 is located in the enclosed space 111, and the third air outlet 142 is located outside the bottle body 11; the filter body 15 is used for filtering gas, the filter body 15 is filled in the enclosed space 111, the third air inlet 141 is buried in the filter body 15, and the second air outlet 132 is located above the filter body 15.

[0057] The fermentation tail gas enters the air intake pipe 12 through the first air inlet 121 of the air intake pipe 12, and enters the rotor flowmeter 13 through the first air outlet 122 of the air intake pipe 12 and the second air inlet 131 of the rotor flowmeter 13. The fermentation tail gas in the rotor flowmeter 13 flows out from the second air outlet 132 of the rotor flowmeter 13 and enters the enclosed space 111. The fermentation tail gas in the enclosed space 111 penetrates downward into the filter body 15, and the filter body 15 plays a role in filtering the fermentation tail gas, such as absorbing oil and water. The fermentation tail gas filtered by the filter body 15 enters the outlet pipe 14 from the third air inlet 141 of the outlet pipe 14 buried in the filter body 15, and is discharged from the third air outlet 142 of the outlet pipe 14, and enters the exhaust gas analyzer.

[0058] The rotor flowmeter 13 also includes a tapered tube 133 that gradually expands from bottom to top and a float 134 that can move freely up and down along the axis of the tapered tube 133. The second air inlet 131 and the second air outlet 132 are arranged on the tapered tube 133 and are connected to the inside of the tapered tube 133. The second air inlet 131 is located below the second air outlet 132. When the fermentation tail gas passes through the tapered tube 133 from bottom to top, the flow of the gas impacts the float 134 and exerts a force on it (the magnitude of this force varies with the magnitude of the flow rate). The position of the float 134 changes continuously with the magnitude of the measured flow until the combined force of the buoyancy of the float 134 at this flow rate and the gravity of the rotor 134 is 0, that is, the contact point between the rotor 134 and the tapered tube 133 remains unchanged. By setting the rotor flowmeter 13, the flow of the fermentation tail gas can be monitored at any time to ensure the stability of the flow entering the tail gas analyzer from the outlet pipe 14.

[0059] Among them, the rotor flowmeter 13 can also be provided with a flow regulating valve 135, which is installed on the conical tube 133. The flow regulating valve 135 is used to adjust the gas flow entering the conical tube 133 from the second air inlet 131, thereby adjusting the flow entering the exhaust gas analyzer from the outlet pipe 14.

[0060] Through the structural setting of the flow meter drying bottle, the flow meter drying bottle can filter the fermentation tail gas and monitor the flow of the fermentation tail gas in real time, thereby ensuring the quality and flow stability of the fermentation tail gas entering the tail gas analyzer.

[0061] The filter body 15 includes a water absorbing layer 151, which is made of a water absorbing material. The water absorbing layer 151 is used to absorb moisture from the fermentation tail gas. In addition, the filter body 15 may also include an oil absorbing layer 152, which is made of an oil absorbing material and covers the water absorbing layer 151. The oil absorbing layer 152 is used to absorb oil from the fermentation tail gas.

[0062] The water-absorbing material can be color-changing silica gel, montmorillonite desiccant, activated carbon or calcium chloride, preferably color-changing silica gel. The oil-absorbing material can be wood fiber, bamboo fiber, flax fiber, cotton fiber, kapok fiber, carbon fiber, polylactic acid modified material-zirconium phosphate, kapok fiber polylactic acid or chitosan, preferably polylactic acid modified material-zirconium phosphate.

[0063] The volume ratio of the water-absorbing material to the oil-absorbing material is preferably 1:0.3 to 0.5. The filter 15 of the water-absorbing material and the oil-absorbing material is arranged within this ratio range to ensure better water-absorbing and oil-absorbing effects.

[0064] The water-absorbing material and the oil-absorbing material can be wrapped with soft cloth and placed separately or mixed together. After the humidity alarm appears in the exhaust gas analyzer 3, the water-absorbing material and the oil-absorbing material can be taken out for drying and degreasing.

[0065] In other embodiments, the filter body 15 may also be configured to be other adsorbent materials according to the requirements of exhaust gas filtering.

[0066] The bottle body 11 may be made of a transparent material so that the experimenter can always observe the flow rate monitored by the rotor flowmeter 13. Alternatively, the bottle body 11 may also be provided with a transparent area facing the scale of the rotor flowmeter 13, thereby facilitating the observation of the experimenter.

[0067] The bottle body 11 may be composed of a bottle body 112 and a bottle cap 113. The bottle cap 113 is covered on the bottle body 112 to form a closed space 111 inside the bottle body 11. The separate design of the bottle cap 113 and the bottle body 112 facilitates the replacement of the filter 15 in the bottle body 11 and the maintenance of various components in the bottle body 11.

[0068] The capacity of the enclosed space 111 in the bottle body 11 is preferably 500ml to 2000ml. The bottle body 11 with this capacity can be better adapted to the filtration of the fermentation tail gas.

[0069] The flow range of the rotor flowmeter 13 is preferably 1-2 L / min. The rotor flowmeter 13 in this range can better match the flow of the fermentation tail gas and can better monitor the flow of the fermentation tail gas.

[0070] In order to ensure that the fermentation tail gas entering the outlet pipe 14 can be fully filtered by the filter body 15, the distance between the third air inlet 141 of the outlet pipe 14 and the bottom of the enclosed space 111 is preferably 2 to 10 mm, so that the fermentation tail gas can pass a longer distance in the filter body 15.

[0071] The second air inlet 131 of the rotor flowmeter 13 is preferably located in the filter body 15, so that the rotor flowmeter 13 is inserted into the filter body 15. On the one hand, the filter body 15 can fix the rotor flowmeter 13 to a certain extent; on the other hand, the structure of the flowmeter drying bottle 1 can be made more compact, and the volume of the flowmeter drying bottle 1 can be reduced.

[0072] The flow meter drying bottle 1 is applied to the fermentation tail gas analysis system, such as Figure 2 The fermentation tail gas analysis system comprises an air source 2, a flow meter drying bottle 1, and an exhaust gas analyzer 3, wherein the air source 2 is used to provide the fermentation tail gas to be analyzed; the first air inlet 121 of the flow meter drying bottle 1 is connected to the air outlet of the air source 2; and the air inlet of the exhaust gas analyzer 3 is connected to the third air outlet 142 of the flow meter drying bottle 1.

[0073] The gas source 2 can be any device such as a bioreactor that produces fermentation tail gas. The fermentation tail gas produced by the gas source 2 is filtered by the flow meter drying bottle 1 before entering the tail gas analyzer 3, which ensures the quality of the fermentation tail gas entering the tail gas analyzer 3 and the accuracy of the tail gas analysis data of the tail gas analyzer 3. At the same time, the rotor flowmeter 13 of the flow meter drying bottle 1 can monitor the flow of the fermentation tail gas at any time, ensuring the stability of the flow of the fermentation tail gas entering the tail gas analyzer 3.

[0074] When in use, the gas flow rate is first adjusted through the flow regulating valve 135 to adjust the flow rate of the fermentation tail gas input into the flow meter drying bottle 1, and the flow rate can be set to about 0.5L / min; then the third gas outlet 142 of the gas outlet pipe 14 is immersed in the liquid, and if bubbles emerge, the third gas outlet 142 of the gas outlet pipe 14 is connected to the gas inlet of the tail gas analyzer 3. Through this operation, on the one hand, it can be confirmed that the air tightness of the flow meter drying bottle 1 meets the requirements, and on the other hand, it can be confirmed that gas enters the tail gas analyzer 3.

[0075] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A flow meter drying bottle, characterized in that: The flow meter drying bottle comprises: A bottle body, wherein a closed space is formed in the bottle body; An air inlet pipe, the air inlet pipe is inserted into the enclosed space, and two ends of the air inlet pipe are respectively provided with a first air inlet and a first air outlet, the first air inlet is located outside the bottle body, and the first air outlet is located in the enclosed space; A rotor flowmeter, the rotor flowmeter is vertically arranged in the enclosed space, the rotor flowmeter is provided with a second air inlet and a second air outlet, the second air inlet is located below the second air outlet, and the first air outlet is connected to the second air inlet; An air outlet pipe, the air outlet pipe is inserted into the enclosed space, and two ends of the air outlet pipe are respectively provided with a third air inlet and a third air outlet, the third air inlet is located in the enclosed space, and the third air outlet is located outside the bottle body; A filter body is used to filter gas. The filter body is filled in the enclosed space. The third air inlet is buried in the filter body. The second air outlet is located above the filter body.

2. The flow meter drying bottle according to claim 1, characterized in that: The filter body comprises a water absorbing layer, and the water absorbing layer is made of a water absorbing material.

3. The flow meter drying bottle according to claim 2, characterized in that: The water absorbing material is color-changing silica gel, montmorillonite desiccant, activated carbon or calcium chloride.

4. The flow meter drying bottle according to claim 2, characterized in that: The filter body further comprises an oil absorbing layer, which is made of an oil absorbing material and covers the water absorbing layer.

5. The flow meter drying bottle according to claim 4, characterized in that: The oil-absorbing material is wood fiber, bamboo fiber, flax fiber, cotton fiber, kapok fiber, carbon fiber, polylactic acid modified material-zirconium phosphate, kapok fiber polylactic acid or chitosan.

6. The flow meter drying bottle according to claim 4, characterized in that: The volume ratio of the water absorbing material to the oil absorbing material is 1:0.3-0.

5.

7. The flow meter drying bottle according to claim 1, characterized in that: The bottle body is provided with a transparent area facing the scale of the rotor flowmeter.

8. The flow meter drying bottle according to claim 1, characterized in that: The distance between the third air inlet and the bottom of the enclosed space is 2 to 10 mm.

9. The flow meter drying bottle according to claim 1 or 8, characterized in that: The second air inlet is located in the filter body.

10. A fermentation tail gas analysis system, characterized in that: include: A gas source, the gas source is used to provide fermentation tail gas to be analyzed; A flow meter drying bottle, wherein the flow meter drying bottle is as described in any one of claims 1 to 9, wherein the first air inlet is connected to the air outlet of the air source; An exhaust gas analyzer, wherein the air inlet of the exhaust gas analyzer is connected to the third air outlet of the flow meter drying bottle.

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