Intermittent poultry house gas sampling and detection device

Abstract

This utility model relates to the field of gas detection technology and provides an intermittent poultry house gas sampling and detection device, including a sampling box installed inside the poultry house, having an inlet pipe and an outlet pipe; at least one gas detection sensor installed inside the sampling box for detecting the concentration of a target component in the gas inside the sampling box; and an air pump connected to the inlet pipe or the outlet pipe. The air pump is configured to draw or force gas from outside the sampling box into the sampling box through the inlet pipe, while simultaneously expelling gas from inside the sampling box through the outlet pipe. Thus, this utility model, by placing the gas detection sensor in a closed sampling box and having the air pump operate intermittently according to the required detection frequency, draws gas from inside the poultry house into the sampling box for detection during the detection period. During non-detection periods, the sampling box is not connected to the gas inside the poultry house, avoiding corrosion and wear of the gas detection sensor and extending its service life.

Description

Technical Field

[0001] This utility model belongs to the field of gas detection technology, and in particular relates to an intermittent poultry house gas sampling and detection device. Background Technology

[0002] Due to factors such as manure fermentation, a certain amount of ammonia gas exists in the air inside poultry houses. Regular testing of ammonia concentration is necessary to provide a basis for accurately assessing the indoor environment and taking timely countermeasures.

[0003] The current method for detecting ammonia concentration in poultry houses involves placing an ammonia concentration sensor inside the house to collect samples. These sensors typically use an electrochemical method to consume ammonia, thus measuring the concentration. However, because the sensors are constantly exposed to the air in the poultry house and continuously consume ammonia, this corrosion and damage shortens their lifespan. According to usage statistics, the lifespan of ammonia concentration sensors is usually around six months, increasing detection costs.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned shortcomings, this utility model primarily provides an intermittent poultry house gas sampling and detection device, solving the technical problem of shortened service life of consumable gas concentration detection equipment in corrosive environments.

[0006] To address the aforementioned problems, this utility model provides an intermittent poultry house gas sampling and detection device, comprising:

[0007] The sampling box, installed inside the poultry house, is equipped with an air inlet pipe and an exhaust pipe;

[0008] At least one gas detection sensor is installed inside the sampling chamber to detect the concentration of the target component in the gas inside the sampling chamber;

[0009] An air pump is connected to an inlet pipe or an outlet pipe; the air pump is configured to draw or pressurize gas outside the sampling box into the sampling box through the inlet pipe, while simultaneously expelling gas inside the sampling box through the outlet pipe.

[0010] According to the intermittent poultry house gas sampling and detection device of this utility model, the gas detection sensor is an ammonia concentration detection sensor and / or a carbon dioxide concentration detection sensor.

[0011] According to the intermittent poultry house gas sampling and detection device of this utility model, the air pump is connected to the air inlet pipe.

[0012] According to the intermittent poultry house gas sampling and detection device of this utility model, the exhaust pipe is connected to a one-way valve.

[0013] According to the intermittent poultry house gas sampling and detection device of this utility model, the port of the exhaust pipe is provided with a baffle; the baffle is provided with a counterweight.

[0014] According to the intermittent poultry house gas sampling and detection device of this utility model, the baffle is a metal plate and the counterweight is a magnetic block.

[0015] According to the intermittent poultry house gas sampling and detection device of this utility model, the air pump is connected to the exhaust pipe; the air inlet pipe is connected to one port of a three-way control valve; the other two ports of the three-way control valve are respectively connected to the displacement gas pipe and the sampling gas pipe; specifically:

[0016] The sampling tube is used to draw in gas from the poultry house;

[0017] The replacement air tube is used to draw in gas from outside the poultry house.

[0018] According to the intermittent poultry house gas sampling and detection device of this utility model, the three-way control valve is a two-inlet-one-outlet three-way valve, with the outlet end connected to the inlet pipe and the two inlet ends connected to the replacement gas pipe and the sampling gas pipe, respectively.

[0019] According to the intermittent poultry house gas sampling and detection device of this utility model, the air inlet pipe and the exhaust pipe are respectively arranged on both sides of the gas detection sensor.

[0020] According to the intermittent poultry house gas sampling and detection device of this utility model, the sampling box is made of plastic.

[0021] In summary, this invention places the gas detection sensor in a sealed sampling box, with the air pump operating intermittently according to the required detection frequency. During the detection period, the gas in the poultry house is drawn into the sampling box for testing. Outside of the detection period, the sampling box is not connected to the gas inside the poultry house, thus preventing corrosion and wear of the gas detection sensor and extending its service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of one embodiment of region A in the middle;

[0024] Figure 3 This is a structural schematic diagram of the working state of the second embodiment of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the working state of the second embodiment of this utility model;

[0026] In the diagram: 1-Sampling box, 11-Inlet pipe, 12-Exhaust pipe, 13-Baffle, 131-Counterweight; 2-Gas detection sensor, 3-Air pump, 4-Three-way control valve, 41-Replacement air pipe, 42-Sampling air pipe. Detailed Implementation

[0027] See Figure 1 This utility model provides an intermittent poultry house gas sampling and detection device, comprising:

[0028] Sampling box 1, set inside the poultry house, has an air inlet pipe 11 and an exhaust pipe 12;

[0029] At least one gas detection sensor 2 is installed inside the sampling box 1 to detect the concentration of the target component in the gas inside the sampling box 1;

[0030] Air pump 3 is connected to air inlet pipe 11 or air outlet pipe 12; the air pump 3 is configured to generate positive or negative pressure in sampling box 1, so that air inlet pipe 11 pressurizes or draws external gas into sampling box 1, while air outlet pipe 12 discharges gas from sampling box 1.

[0031] Optionally, the gas detection sensor 2 of this utility model is an ammonia concentration detection sensor.

[0032] Optionally, depending on the testing requirements and the place of use, the sampling box 1 of this utility model can also be equipped with other component detection sensors, such as carbon dioxide concentration detection sensors.

[0033] The air pump 3 of this invention can operate intermittently according to the required testing frequency, drawing gas from the poultry house into the sampling box 1 for testing. During non-testing periods, the air pump 3 is stopped, and the sampling box 1 is not connected to the gas in the poultry house, thus avoiding corrosion and wear of the gas detection sensor 2 and extending its service life.

[0034] As one implementation method, the operating time of the air pump 3 can be set within a predetermined detection cycle; this ensures the gas detection requirements while reducing the wear and tear on the gas detection sensor 2.

[0035] Optionally, this invention uses a 30-minute detection cycle, with the air pump 3 running for 5 minutes within each cycle. The ratio of the running time to the shutdown time of the air pump 3 is 1:5; that is, the service life of the gas detection sensor 2 is 5 times that of the existing life. The sensor replacement interval is extended from once every six months to once every two and a half years, greatly reducing the detection cost.

[0036] Optionally, this utility model uses a detection cycle of 60 minutes, with the air pump 3 running for 5 minutes in each cycle, and the ratio of the running time to the shutdown time of the air pump 3 is 1:11.

[0037] Those skilled in the art can adapt the testing cycle and the running time of the air pump 3 according to the requirements of specific testing specifications.

[0038] In one embodiment, the air pump 3 is connected to the air inlet pipe 11; when the air pump 3 is running, it can force the gas in the poultry house into the sampling box 1 through the air inlet pipe 11, and at the same time discharge the gas in the box through the exhaust pipe 12. After the air pump 3 has been running for 30-60 seconds, when the concentration of the gas in the box is the same as or similar to that of the gas outside the poultry house, the detection value of the gas detection sensor 2 can be recorded.

[0039] Those skilled in the art can set up a calibration gas detection sensor 2 in the poultry house and compare the values ​​with those of the gas detection sensor 2 inside the box; through multiple tests, they can determine how long after the air pump 3 starts running can an accurate detection value be obtained.

[0040] Furthermore, the exhaust pipe 12 is connected to a one-way valve. When the air pump 3 is running, the compressed gas expels the gas inside the chamber; when the air pump 3 stops, gas from outside the chamber cannot enter, thus protecting the gas detection sensor 2.

[0041] See Figure 2 In one embodiment, a baffle 13 is rotatably provided at the end of the exhaust pipe 12; a counterweight 131 is provided on the baffle 13; when the air pump 3 is running, the gas inside the chamber pushes the baffle 13 open to discharge the gas at a pressure slightly greater than that of the gas outside the chamber. When the air pump 3 stops, the exhaust pipe 12 is sealed by the weight of the baffle 13 itself and the counterweight 131 to prevent gas from outside the chamber from entering.

[0042] Furthermore, the baffle 13 is a metal plate, and the counterweight 131 is a magnetic block; the counterweight 131 is magnetically attracted to the metal plate, which facilitates the adjustment of its position on the baffle 13 and the adjustment of the opening pressure of the baffle 13.

[0043] As one embodiment, the air inlet pipe 11 and the exhaust pipe 12 are respectively arranged on both sides of the gas detection sensor 2; the gas entering from outside the box can flow directly to the gas detection sensor 2 to ensure detection accuracy and precision.

[0044] See Figure 3 In one embodiment, the air pump 3 is connected to the exhaust pipe 12; the air inlet pipe 11 is connected to one port of the three-way control valve 4; the other two ports of the three-way control valve 4 are respectively connected to the displacement air pipe 41 and the sampling air pipe 42; specifically:

[0045] The sampling tube 42 is used to draw in gas from the poultry house;

[0046] The replacement air tube 41 is used to draw in gas from outside the poultry house;

[0047] Optionally, the three-way control valve 4 of this utility model is a two-inlet-one-outlet three-way valve, with the outlet end connected to the inlet pipe 11, and the two inlet ends connected to the replacement gas pipe 41 and the sampling gas pipe 42 respectively.

[0048] During the testing period, the three-way control valve 4 connects the sampling air pipe 42 to the inlet pipe 11 and disconnects the replacement air pipe 41 from the inlet pipe 11; the gas in the poultry house is drawn into the sampling box 1, and at the same time the gas in the box is drawn out from the exhaust pipe 12. The operating time of the air pump 3 is as described above.

[0049] During non-detection periods, the three-way control valve 4 shuts off the sampling air pipe 42 from the inlet pipe 11 and connects the replacement air pipe 41 to the inlet pipe 11; gas from outside the poultry house is drawn into the sampling box 1, while gas inside the box is extracted from the exhaust pipe 12. The air pump 3 can run for 3-5 minutes during this period, using clean gas from outside the poultry house to extract the residual gas to be tested from the box, reducing the wear and tear on the gas detection sensor 2.

[0050] Optionally, the sampling box 1 of this utility model is made of plastic, which is lightweight, has low manufacturing cost, and is not easily corroded.

[0051] In summary, this utility model provides an intermittent poultry house gas sampling and detection device. By placing a gas detection sensor in a closed sampling box, the air pump operates intermittently according to the required detection frequency. During the detection period, gas from the poultry house is drawn into the sampling box for testing. Outside of the detection period, the sampling box is not connected to the gas inside the poultry house, avoiding corrosion and wear of the gas detection sensor and extending its service life.

[0052] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An intermittent poultry house gas sampling and detection device, characterized in that, include: The sampling box, installed inside the poultry house, is equipped with an air inlet pipe and an exhaust pipe; At least one gas detection sensor is installed inside the sampling chamber to detect the concentration of the target component in the gas inside the sampling chamber; An air pump is connected to an inlet pipe or an outlet pipe; the air pump is configured to draw or pressurize gas outside the sampling box into the sampling box through the inlet pipe, while simultaneously expelling gas inside the sampling box through the outlet pipe.

2. The intermittent poultry house gas sampling and detection device as described in claim 1, characterized in that, The gas detection sensor is an ammonia concentration detection sensor and / or a carbon dioxide concentration detection sensor.

3. The intermittent poultry house gas sampling and detection device as described in claim 1, characterized in that, The air pump is connected to the air inlet pipe.

4. The intermittent poultry house gas sampling and detection device as described in claim 3, characterized in that, The exhaust pipe is connected to a one-way valve.

5. The intermittent poultry house gas sampling and detection device as described in claim 3, characterized in that, The exhaust pipe has a baffle at its port position; the baffle has a counterweight.

6. The intermittent poultry house gas sampling and detection device as described in claim 5, characterized in that, The baffle is a metal plate, and the counterweight is a magnetic block.

7. The intermittent poultry house gas sampling and detection device as described in claim 1, characterized in that, The air pump is connected to the exhaust pipe; the air inlet pipe is connected to one port of the three-way control valve; the other two ports of the three-way control valve are respectively connected to the replacement air pipe and the sampling air pipe; specifically: The sampling tube is used to draw in gas from the poultry house; The replacement air tube is used to draw in gas from outside the poultry house.

8. The intermittent poultry house gas sampling and detection device as described in claim 7, characterized in that, The three-way control valve is a two-inlet, one-outlet three-way valve, with the outlet end connected to the inlet pipe and the two inlet ends connected to the replacement gas pipe and the sampling gas pipe, respectively.

9. The intermittent poultry house gas sampling and detection device as described in any one of claims 1 to 8, characterized in that, The intake pipe and exhaust pipe are respectively located on both sides of the gas detection sensor.

10. The intermittent poultry house gas sampling and detection device as described in claim 9, characterized in that, The sampling box is made of plastic.

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