A temperature control system for sampling main pipe

Abstract

The present invention relates to the technical field of air sampling. The present invention discloses a sampling main pipe temperature control system, comprising a monitoring terminal and a collection end. The monitoring terminal monitors three temperature parameters of the equipment self-heating temperature, the external temperature and the heating temperature of the collection end, and adjusts the temperature of the collection end based on the temperature parameters. The collection end comprises a sampling main pipe, a temperature controller, and a temperature monitoring component. The sampling main pipe is provided with a temperature enclosure unit, and the temperature enclosure unit is connected to the temperature controller through an equipment self-heating auxiliary shielding channel and an equipment self-heating shielding channel respectively. When the external temperature decreases and has a large temperature difference with the heating temperature, the temperature inside the temperature controller will definitely be higher than the ambient temperature. Therefore, the heat dissipation medium inside the temperature controller can be injected into the temperature enclosure unit to form a protective gas inside the temperature enclosure unit, so as to heat to the same temperature with low energy consumption. The monitoring terminal collects information from multiple collection ends to adjust the heating temperature and reduce energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of air sampling, in particular to a sampling main pipe temperature control system. Background Art

[0002] The temperature difference in the sampling main pipe causes condensation, which causes the liquid to adsorb the gas, eventually resulting in non-standard content of components in the sampled gas. In order to avoid this situation, a temperature controller is required to control the temperature of the sampling main pipe to ensure that the sampling main pipe performs sampling work at a relatively constant temperature.

[0003] Generally, the outer layer of the sampling main pipe is made of stainless steel, and the inner layer is made of plastic material that is not easy to absorb substances. The heating mainly acts on the inner layer. In many places, the temperature difference between day and night is large, and the temperature controller uses electric heating to heat the inner layer. When the difference between the ambient temperature and the required temperature is large, the power consumption and power of the electric heating will also increase. Therefore, the energy consumption used for heating is related to the ambient temperature. Summary of the invention

[0004] The object of the present invention is to provide a sampling main pipe temperature control system to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A sampling main pipe temperature control system, comprising a monitoring terminal and a collection terminal, wherein the monitoring terminal monitors three temperature parameters of the equipment self-heating temperature, the external temperature and the heating temperature of the collection terminal, and adjusts the temperature of the collection terminal based on the temperature parameters;

[0007] The collection end includes a sampling main pipe, a temperature controller, and a temperature monitoring component. The sampling main pipe has a temperature enclosure unit inside, and the temperature enclosure unit is connected to the temperature controller through the equipment self-heating auxiliary shielding channel and the equipment self-heating shielding channel respectively;

[0008] The outer tube temperature detection unit, the inner tube temperature detection unit, and the temperature detection unit of the temperature control device respectively monitor the external temperature, the heating temperature, and the self-heating temperature of the equipment, and transmit the temperature data to the monitoring terminal through the data transmission module. The monitoring terminal controls the self-heating heat dissipation transport unit through the control module according to the temperature parameters, and cooperates with the equipment self-heating auxiliary shielding channel and the equipment self-heating shielding channel to introduce gas or liquid higher than the external temperature into the temperature enclosure unit.

[0009] As a further solution of the present invention: the sampling main pipe includes an outer tube and an inner tube, the inner tube is fixedly connected to an electric heating control unit, the temperature enclosure unit includes a temperature insulation layer, the temperature insulation layer is fixed to the inner wall of the outer tube to form a temperature insulation cavity, the outer wall of the outer tube is fixedly connected to an access tube, the access tube is connected to the temperature insulation cavity, and the electric heating control unit is electrically connected to the temperature controller through an electric heating circuit.

[0010] As a further solution of the present invention: the equipment self-heating shielding channel is connected to the heat dissipation medium delivery pipeline of the temperature controller, the other end of the equipment self-heating shielding channel is connected to the access pipe, part of the pipeline of the equipment self-heating auxiliary shielding channel coincides with the electric heating circuit, the equipment self-heating auxiliary shielding channel is connected to the heat dissipation medium delivery pipeline of the thermostat, the other end of the equipment self-heating auxiliary shielding channel is connected to the equipment self-heating shielding channel, and the heat dissipation medium delivery pipeline of the thermostat is also connected to a heat dissipation channel.

[0011] As a further solution of the present invention: the temperature-insulating chamber is further provided with a discharge pipe, and the discharge pipe flows back to the indoor environment through the bottom end of the outer pipe.

[0012] As a further solution of the present invention, a method for using the sampling main pipe temperature control system includes:

[0013] A: The outside temperature, heating temperature and equipment self-heating temperature collected by the outside tube temperature detection unit, the inside tube temperature detection unit and the temperature control device temperature detection unit in the collection end are transmitted to the monitoring terminal. When the outside temperature is lower than the heating temperature and the equipment self-heating temperature is higher than the outside temperature, the monitoring terminal controls the self-heating heat dissipation transmission unit to start through the control module. The heat dissipation element inside the temperature controller uses the equipment self-heating shielding channel as the transmission channel to transport the air medium or liquid medium to the insulation cavity. The insulation cavity expands to form a temperature-protected interlayer between the outer tube and the electric heating control unit, thereby reducing the heating effect of the outside temperature on the electric heating control unit and the inner tube.

[0014] B: When the outside temperature is lower than the heating temperature and the self-heating temperature of the equipment is close to the outside temperature, the heat dissipation element inside the temperature controller uses the equipment self-heating auxiliary shielding channel as the transmission channel for the air medium or liquid medium, passes through the equipment self-heating auxiliary shielding channel, and passes through the electric heating circuit to increase the heat, and then is sent into the insulation cavity through the equipment self-heating shielding channel;

[0015] C: When the outside temperature is close to the heating temperature, the heat dissipation element inside the thermostat transports the air medium or liquid medium through the heat dissipation channel to perform normal heat exchange and heat dissipation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] A cavity is formed between the inner tubes, and the cavity has a certain insulation function. However, when the outside temperature is too low and the temperature difference is too large, the insulation effect will be reduced, so the energy consumption and heating power will still increase. The outer tube is located outside, so a temperature enclosure unit is set between the outer tube and the inner tube. When the temperature difference is small, the temperature enclosure unit can not work. Normal heating is electrically heated through the electric heating circuit a, and when the outside temperature is reduced and there is a large temperature difference with the heating temperature, the temperature inside the thermostat will definitely be higher than the ambient temperature. Therefore, the heat dissipation medium inside the thermostat can be injected into the temperature enclosure unit to form a protective gas inside the temperature enclosure unit, and the outside temperature will first contact the gas inside the insulation cavity, so that the temperature effect of the outside environment on the inner tube is reduced, so that when heated to the same temperature, the energy consumption is low, and the heating temperature is adjusted by collecting information from multiple acquisition terminals through the monitoring terminal, while reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A diagram of a temperature control system for a sampling main pipe;

[0020] Figure 2 A schematic diagram of a collection end path in a sampling main pipe temperature control system;

[0021] Figure 3 A schematic diagram of the composition of a sampling main pipe in a sampling main pipe temperature control system;

[0022] Figure 4 It is a system diagram of the collection end in a sampling main pipe temperature control system;

[0023] In the figure: 100, monitoring terminal; 200, acquisition terminal; 1, sampling main pipe; 11, outer pipe; 111, access pipe; 12, inner pipe; 13, electric heating control unit; 14, temperature enclosure unit; 141, insulation layer; 142, insulation chamber; 2, temperature controller; 21, self-heating heat dissipation transport unit; 3, temperature monitoring component; 31, outer tube temperature detection unit; 32, inner tube temperature detection unit; 33, temperature control equipment temperature detection unit; 4, data transmission module; 5, control module; a, electric heating circuit; b, equipment self-heating auxiliary shielding channel; c, equipment self-heating shielding channel; d, heat dissipation channel. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 4In this embodiment, a monitoring terminal 100 and a collection terminal 200 are included. The monitoring terminal 100 monitors three temperature parameters of the equipment self-heating temperature, the external temperature and the heating temperature of the collection terminal 200, and adjusts the temperature of the collection terminal 200 based on the temperature parameters.

[0025] In this embodiment, the monitoring terminal 100 is responsible for monitoring multiple collection terminals 200 within the regional range. While collecting the air parameter information collected by the collection terminal 200, it is also necessary to monitor the external temperature, heating temperature and equipment self-heating temperature at the collection terminal 200. Each sampling main pipe 1 is provided with a temperature controller, and the temperature controller itself generates heat when working. Therefore, the equipment self-heating temperature is the internal temperature of the temperature controller equipment, and the external temperature is the ambient temperature. The ambient temperature will affect the inner tube. The lower the ambient temperature, the higher the power and energy consumption used by the inner tube to maintain the same temperature. Therefore, the heating temperature reflects the standard power required for heating by the temperature controller, and the external temperature is a factor that affects the standard power. Therefore, if the influence of the external temperature on the heating temperature is reduced, the actual power and energy consumption of the inner tube heating can be reduced.

[0026] In this embodiment, the collection end 200 includes a sampling main pipe 1, a temperature controller 2, and a temperature monitoring component 3. The sampling main pipe 1 has a temperature enclosure unit 14 inside, and the temperature enclosure unit 14 is connected to the temperature controller 2 through the equipment self-heating auxiliary shielding channel b and the equipment self-heating shielding channel c.

[0027] In this embodiment, the sampling main pipe 1 is arranged outside and at a high place, so it is easily affected by temperature. The temperature controller 2 can be arranged in an indoor environment. The sampling main pipe 1 is generally a double-tube structure. The sampling main pipe 1 includes an outer tube 11 and an inner tube 12. The inner tube 12 is fixedly connected to an electric heating control unit 13. The temperature enclosure unit 14 includes a temperature insulation layer 141. The temperature insulation layer 141 is fixed to the inner wall of the outer tube 11 to form a temperature insulation cavity 142. The outer wall of the outer tube 11 is fixedly connected to an access pipe 111. The access pipe 111 is connected to the temperature insulation cavity 142. The electric heating control unit 13 is electrically connected to the temperature controller 2 through an electric heating circuit a. The outer tube 11 is located outside and can be made of high-strength materials, such as stainless steel materials or other materials with heat preservation effects. The inner tube 12 is located inside. When selecting the material of the inner tube 12, it is necessary to consider the material that will not adsorb the target substance in the gas. A cavity is formed between the outer tube 11 and the inner tube 12, and the cavity has a certain heat preservation function. However, when the outside temperature is too low and the temperature difference is too large, the effect of the heat preservation function will be reduced, so the energy consumption and heating power will still increase. The outer tube 11 is located outside, so a temperature enclosure unit 14 is set between the outer tube 11 and the inner tube 12. When the temperature difference is small, the temperature enclosure unit 14 can not work. Normal heating is electrically heated through the electric heating circuit a, and when the outside temperature is reduced and has a large temperature difference with the heating temperature, the temperature inside the thermostat 2 will definitely be higher than the ambient temperature. Therefore, the heat dissipation medium inside the thermostat 2 can be injected into the temperature enclosure unit 14, and a protective gas is formed inside the temperature enclosure unit 14. The outside temperature will first contact the gas inside the insulation cavity 142, so that the temperature effect of the outside environment on the inner tube is reduced, so that when heated to the same temperature, the energy consumption is low.

[0028] In this embodiment, the outer tube temperature detection unit 31, the inner tube temperature detection unit 32, and the temperature control device temperature detection unit 33 respectively monitor the three temperatures of the external temperature, the heating temperature, and the equipment self-heating temperature, and transmit the temperature data to the monitoring terminal 100 through the data transmission module 4. The monitoring terminal 100 controls the self-heating heat dissipation transport unit 21 through the control module 5 according to the temperature parameters, and cooperates with the equipment self-heating auxiliary shielding channel b and the equipment self-heating shielding channel c to introduce gas or liquid higher than the external temperature into the temperature enclosure unit 14.

[0029] In this embodiment, the monitoring terminal 100 needs to control and adjust the temperature monitored by the outer tube temperature detection unit 31, the inner tube temperature detection unit 32, and the temperature detection unit 33 of the temperature control device. If the temperature difference between the outer tube temperature detection unit 31 and the inner tube temperature detection unit 32 is not large, and it does not affect the energy consumption and power, then the thermostat 2 can dissipate heat normally. If the temperature difference between the outer tube temperature detection unit 31 and the inner tube temperature detection unit 32 is large, if the temperature difference between the inner tube temperature detection unit 32 and the temperature detection unit 33 of the temperature control device is not large or there is no difference, part of the gas can be heated through the electric heating circuit a through the device self-heating auxiliary shielding channel b and then sent to the temperature insulation chamber 142. If the temperature difference between the outer tube temperature detection unit 31 and the inner tube temperature detection unit 32 is large, and the temperature difference between the temperature detection unit 33 of the temperature control device and the outer tube temperature detection unit 31 is large, then the gas or liquid can be directly input into the temperature insulation chamber 142 through the device self-heating shielding channel c.

[0030] In this embodiment, the equipment self-heating shielding channel c is connected to the heat dissipation medium delivery pipeline of the thermostat 2, the other end of the equipment self-heating shielding channel c is connected to the access pipe 111, part of the pipeline of the equipment self-heating auxiliary shielding channel b coincides with the electric heating circuit a, the equipment self-heating auxiliary shielding channel b is connected to the heat dissipation medium delivery pipeline of the thermostat 2, the other end of the equipment self-heating auxiliary shielding channel b is connected to the equipment self-heating shielding channel c, and the heat dissipation medium delivery pipeline of the thermostat 2 is also connected to the heat dissipation channel d.

[0031] In this embodiment, when the difference between the outside temperature and the heating temperature is not large, the heat can be dissipated through the heat dissipation channel d. If the thermostat 2 adopts wind heat dissipation, a powerful fan is used. The powerful fan generates airflow inside the thermostat 2 and transports the high-temperature gas to the outside, thereby using air heat exchange to reduce the temperature inside the thermostat 2, and the high-temperature gas is transported to the outside of the inner tube 12 surrounded by the insulation chamber 142, reducing the impact of the outside temperature on the inner tube 12 through the outer tube 11. If liquid cooling is adopted, the cooling medium is set at the heating element, and a liquid with a certain temperature or higher than the ambient temperature flows into the insulation chamber 142 to seal and protect the inner tube 12. During liquid cooling, the temperature of the liquid is selected to be room temperature rather than an extremely low temperature. If the component heats up seriously, the liquid temperature can be appropriately lowered to ensure the heat dissipation effect.

[0032] In this embodiment, the temperature-insulating chamber 142 is also provided with a discharge pipe, which flows back to the indoor environment through the bottom end of the outer tube 11. In order to avoid the open end of the discharge pipe being located outside, the external temperature directly enters the temperature-insulating chamber 142 to generate heat exchange, thereby failing to play the role of temperature sealing protection.

[0033] Three methods of using the present invention:

[0034] A: The outside temperature, heating temperature and equipment self-heating temperature collected by the outside tube temperature detection unit 31, the inside tube temperature detection unit 32 and the temperature control device temperature detection unit 33 in the acquisition end 200 are transmitted to the monitoring terminal 100. When the outside temperature is lower than the heating temperature and the equipment self-heating temperature is higher than the outside temperature, the monitoring terminal 100 controls the self-heating heat dissipation conveying unit 21 to start through the control module 5. The heat dissipation element inside the temperature controller 2 conveys the air medium or liquid medium to the temperature insulation cavity 142 through the equipment self-heating shielding channel c channel as the conveying channel. The temperature insulation cavity 142 expands to form a temperature-containing surrounding interlayer between the outer tube 11 and the electric heating control unit 13, thereby reducing the heating effect of the outside temperature on the electric heating control unit 13 and the inner tube 12.

[0035] B: When the outside temperature is lower than the heating temperature and the self-heating temperature of the device is close to the outside temperature, the heat dissipation element inside the temperature controller 2 uses the device self-heating auxiliary shielding channel b as the transmission channel, and the air medium or liquid medium passes through the device self-heating auxiliary shielding channel b and the electric heating circuit a to increase the heat, and then is sent into the insulation chamber 142 through the device self-heating shielding channel c;

[0036] C: When the outside temperature is close to the heating temperature, the heat dissipation element inside the thermostat 2 transports the air medium or liquid medium through the heat dissipation channel d to perform normal heat exchange and heat dissipation.

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling main pipe temperature control system, comprising a monitoring terminal (100) and a collection terminal (200), characterized in that: The monitoring terminal (100) monitors three temperature parameters of the equipment self-heating temperature, the external temperature and the heating temperature of the acquisition terminal (200), and adjusts the temperature of the acquisition terminal (200) based on the temperature parameters; The collection end (200) comprises a sampling main pipe (1), a temperature controller (2), and a temperature monitoring component (3); the sampling main pipe (1) has a temperature enclosure unit (14) inside, and the temperature enclosure unit (14) is connected to the temperature controller (2) through a device self-heating auxiliary shielding channel (b) and a device self-heating shielding channel (c); The outer tube temperature detection unit (31), the inner tube temperature detection unit (32), and the temperature control device temperature detection unit (33) respectively monitor the three temperatures of the outside temperature, the heating temperature, and the device self-heating temperature, and transmit the temperature data to the monitoring terminal (100) through the data transmission module (4). The monitoring terminal (100) controls the self-heating heat dissipation conveying unit (21) in cooperation with the device self-heating auxiliary shielding channel (b) and the device self-heating shielding channel (c) according to the temperature parameters through the control module (5) to pass gas or liquid with a temperature higher than the outside temperature into the temperature enclosure unit (14).

2. A sampling main pipe temperature control system according to claim 1, characterized in that: The sampling main pipe (1) comprises an outer tube (11) and an inner tube (12); an electric heating control unit (13) is fixedly connected inside the inner tube (12); the temperature enclosure unit (14) comprises a temperature insulation layer (141); the temperature insulation layer (141) is fixed on the inner wall of the outer tube (11) to form a temperature insulation cavity (142); an access pipe (111) is fixedly connected to the outer wall of the outer tube (11); the access pipe (111) is in communication with the temperature insulation cavity (142); and the electric heating control unit (13) is electrically connected to the temperature controller (2) via an electric heating circuit (a).

3. A sampling main pipe temperature control system according to claim 2, characterized in that: The device self-heating shielding channel (c) is connected to the heat dissipation medium delivery pipeline of the temperature controller (2), the other end of the device self-heating shielding channel (c) is connected to the access pipe (111), part of the pipeline of the device self-heating auxiliary shielding channel (b) overlaps with the electric heating circuit (a), the device self-heating auxiliary shielding channel (b) is connected to the heat dissipation medium delivery pipeline of the temperature controller (2), the other end of the device self-heating auxiliary shielding channel (b) is connected to the device self-heating shielding channel (c), and the heat dissipation medium delivery pipeline of the temperature controller (2) is also connected to the heat dissipation channel (d).

4. A sampling main pipe temperature control system according to claim 2, characterized in that: The temperature-insulating chamber (142) is also provided with a discharge pipe, and the discharge pipe flows back to the indoor environment through the bottom end of the outer tube (11).

5. A method for using a sampling main pipe temperature control system according to any one of claims 1 to 4, characterized in that: include: A: The outside temperature, heating temperature and device self-heating temperature collected by the outside tube temperature detection unit (31), the inside tube temperature detection unit (32) and the temperature control device temperature detection unit (33) in the collection end (200) are transmitted to the monitoring terminal (100). When the outside temperature is lower than the heating temperature and the device self-heating temperature is higher than the outside temperature, the monitoring terminal (100) controls the self-heating heat dissipation transmission unit (21) to start through the control module (5). The heat dissipation element inside the temperature controller (2) transmits the air medium or liquid medium to the temperature insulation cavity (142) using the device self-heating shielding channel (c) as the transmission channel. The temperature insulation cavity (142) expands to form a temperature-containing surrounding layer between the outside tube (11) and the electric heating control unit (13), thereby reducing the heating effect of the outside temperature on the electric heating control unit (13) and the inner tube (12). B: When the outside temperature is lower than the heating temperature and the self-heating temperature of the device is close to the outside temperature, the heat dissipation element inside the temperature controller (2) uses the device self-heating auxiliary shielding channel (b) as a transmission channel for the air medium or liquid medium, passes through the device self-heating auxiliary shielding channel (b) and the electric heating circuit (a) to increase the heat, and then passes through the device self-heating shielding channel (c) into the temperature insulation chamber (142); C: When the outside temperature is close to the heating temperature, the heat dissipation element inside the thermostat (2) transports the air medium or liquid medium through the heat dissipation channel (d) to perform normal heat exchange and heat dissipation.

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