CN112294351A - Internal temperature adjusting method of CT (computed tomography) machine - Google Patents
Internal temperature adjusting method of CT (computed tomography) machine Download PDFInfo
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- CN112294351A CN112294351A CN202011179894.7A CN202011179894A CN112294351A CN 112294351 A CN112294351 A CN 112294351A CN 202011179894 A CN202011179894 A CN 202011179894A CN 112294351 A CN112294351 A CN 112294351A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000002591 computed tomography Methods 0.000 title description 135
- 238000010438 heat treatment Methods 0.000 claims abstract description 90
- 239000004065 semiconductor Substances 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 238000005057 refrigeration Methods 0.000 claims abstract description 22
- 230000007613 environmental effect Effects 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
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- 239000002784 hot electron Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
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Abstract
The invention discloses a method for adjusting the internal temperature of a CT machine, wherein a temperature sensor detects the internal temperature of the CT machine after being electrified; judging whether a threshold value is reached according to the internal temperature of the CT machine to start the internal circulating fan, starting the internal circulating fan when the threshold value is reached, and not starting the internal circulating fan when the threshold value is not reached; judging whether the working temperature is reached, starting the CT machine to work when the working temperature is reached, and starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; and judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded. The CT machine has the advantages that the temperature is automatically adjusted inside the CT machine, the CT machine is not influenced by the environmental temperature, an air cooling machine is not required to be additionally arranged outside, internal circulation dust cannot enter the CT machine, and the service life is long; the CT machine scanning key component works in a temperature range with a controlled precision value.
Description
Technical Field
The invention relates to the technical field of CT machines, in particular to a method for adjusting the internal temperature of a CT machine.
Background
The CT machine as a high-tech medical device mainly comprises a frame, a hospital bed, an operation console, and a CT bulb and a detector assembly arranged in the frame, wherein the CT bulb is an X-ray source of CT and is a high-value consumable part. The tube core of the CT bulb tube mainly comprises a filament, a rotating target disc and a vacuum cavity. The working principle is that the filament is heated to generate hot electrons, and the heavy metal target disk is bombarded by the high-voltage direct-current electric field to generate X rays. When the CT bulb tube is exposed, 99% of electric energy is converted into heat energy, and 1% of electric energy is converted into ray energy. The heat is absorbed by the insulating oil between the tube core and the tube shell, circulates through an oil circuit, exchanges heat with the air inside the rack where the CT bulb tube is located by the heat exchanger, and is discharged by an air heat exchange system in the rack. The main reason for the damage of the CT bulb tube is overheating, the heat dissipation efficiency of the bulb tube can be obviously improved by reducing the air temperature in the scanning rack, and the service life of the bulb tube is prolonged.
In the prior art, the heat exchange of air in a rack is mainly air cooling, the rack is provided with an air inlet and an air outlet, the heat of a CT bulb tube is subjected to heat exchange with the air in the rack, the rack heat exhausting fan exhausts the heat to a machine room, and then the air conditioner in the machine room exchanges the heat to the outside. The air cooler for the CT is additional refrigeration equipment of the CT and is used for improving the original heat dissipation efficiency of the CT. The air-cooler attaches in original CT machine for further improve the radiating efficiency of original CT machine, the air-cooler is equipped with the air conditioning export, sends into the frame air intake with air conditioning through the pipeline.
The existing CT mainly has the following defects:
1. special CT air coolers need to be configured, the CT air coolers are used as additional equipment of the CT machine, a communication interface is not arranged between the CT air coolers and the CT machine, and the temperature and state data of the rack cannot be directly acquired from the CT machine: if the cold air output of the CT air cooler is excessive, the temperature of the rack is too low, the accuracy of a detector of the CT machine is influenced or other damages are caused; if the CT machine is shut down and the CT air cooler continues to output cold air, the temperature inside the rack is seriously unbalanced, hot air in the rack is cooled to possibly generate condensed water vapor to damage a circuit board, and the CT air cooler needs to be controlled manually;
2. the air cooling system is easy to cause a dust coverage control system inside the CT machine;
3. the air cooling system can not ensure the normal work of the CT machine in a low-temperature or high-temperature environment, and particularly needs to be automatically started when the power is suddenly cut off in the low-temperature environment or the CT machine is started in the high-temperature environment;
4. a CT room where the CT machine is arranged is usually provided with an air conditioner, and needs a clean environment, so that the requirement on the environment is high for ensuring the scanning precision;
5. the environmental temperature has a great influence on the CT scanning precision.
Disclosure of Invention
The invention aims to provide a method for adjusting the internal temperature of a CT machine, which can automatically adjust the internal temperature of the CT machine, is not influenced by the environmental temperature, has low requirement on the environment and does not need an external air cooling machine.
The invention aims to provide a method for adjusting the internal temperature of a CT machine, wherein a temperature sensor detects the internal temperature of the CT machine after being electrified; judging whether a threshold value is reached according to the internal temperature of the CT machine to start the internal circulating fan, starting the internal circulating fan when the threshold value is reached, and not starting the internal circulating fan when the threshold value is not reached; judging whether the working temperature is reached, starting the CT machine to work when the working temperature is reached, and starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine.
Preferably, the internal temperature threshold of the CT machine is 5-55 ℃, the refrigeration and heating semiconductor heating is started at the temperature lower than 5 ℃, and the refrigeration and heating semiconductor cooling is started at the temperature higher than 55 ℃.
Preferably, the internal temperature threshold of the CT machine is 10-45 ℃, the refrigeration and heating semiconductor heating is started at the temperature lower than 10 ℃, and the refrigeration and heating semiconductor cooling is started at the temperature higher than 45 ℃.
More preferably, the internal temperature threshold of the CT machine is 15-38 ℃, the refrigeration and heating semiconductor heating is started when the temperature is lower than 15 ℃, and the refrigeration and heating semiconductor cooling is started when the temperature is higher than 38 ℃.
Preferably, both sides of the refrigerating and heating semiconductor are tightly attached to the radiating fins, the inner radiating fins face the inside of the machine shell and are provided with the internal circulating fan, and the outer radiating fins are arranged on the CT machine and face the outside of the machine shell.
More preferably, the two temperature sensors are respectively arranged in the machine frames at two sides of the inside of the CT machine.
More preferably, the cooling and heating semiconductor is arranged at the bottom or the top of the CT machine.
More preferably, the temperature values of the two temperature sensors are detected and compared with a threshold value, and the cooling and heating semiconductor is started or stopped when the temperature values of the two temperature sensors do not meet the threshold value.
More preferably, the number of the cooling and heating semiconductors is two, and the two cooling and heating semiconductors are respectively arranged at the bottom and the top of the CT machine.
When the CT machine works, the temperature sensor detects the internal temperature of the CT machine after being electrified, whether a preheating or precooling process is carried out is judged, the preheating or precooling is connected with the heating and refrigerating semiconductor in parallel through the temperature control switch, the heating and refrigerating semiconductor is controlled by the control module, whether a threshold value is reached or not is judged according to the internal temperature of the CT machine to start the internal circulating fan, the internal circulating fan is started when the threshold value is reached, the internal circulating fan is not started when the threshold value is not reached, the control is high-efficiency, the heating or cooling speed is higher due to internal circulation, the internal temperature in a closed space formed by the casing is not easy to; circularly judging whether the working temperature is reached, starting the CT machine to work when the working temperature is reached, starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached, easily starting the CT machine to function at normal temperature, and preheating the CT machine to reach the working temperature required by a controller and other parts in winter; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine; by setting the optimal threshold temperature, the CT bulb tube and other components of the CT machine can be ensured to work in the optimal temperature range.
Compared with the prior art, the invention has the following effects:
1. the temperature adjusting method of the invention avoids the arrangement of an air cooling system at the upper opening of the CT machine, does not need to be provided with a special CT air cooler, and can lead the interior of the CT machine to form a proper working environment by internal circulation;
2. the internal circulation system of the CT machine prevents dust from entering, and the working temperature of components in the CT machine is high, so that the service life is long;
3. preheating in cold winter and starting in hot summer;
4. enabling the CT machine scanning key component to work in a temperature range with a relatively controlled precision value;
5. the influence of the environmental temperature on the scanning precision of the CT machine is small, the CT machine can adapt to various environments, and the external environmental temperature does not need to be judged.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following examples are provided to explain the present invention in detail. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example one
In the method for adjusting the internal temperature of the CT machine provided by this embodiment, the temperature sensor detects the internal temperature of the CT machine after being powered on, and determines whether the internal temperature is lower than 5 ℃ for preheating or higher than 55 ℃ for precooling, the preheating or precooling is connected in parallel with the heating and cooling semiconductor PTC or NTC through the temperature control switches at 5 ℃ and 55 ℃, and the heating and cooling semiconductor is controlled by the bridging bidirectional current flow control module composed of the IRF530 and the IRF9530, that is, the current can flow in the forward direction and in the reverse direction, so that the cooling and heating semiconductor can cool and heat, the current flows in the forward direction and the current flows in the reverse direction; whether the threshold value is less than 5 or higher than 55 ℃ is judged according to the internal temperature of the CT machine to start the internal circulating fan, the internal circulating fan is started up when the threshold value is reached, the internal circulating fan is not started up, the control is high-efficiency, the internal circulation enables the heating or cooling speed to be higher, the internal temperature of the CT machine in the closed space formed by the shell is not easy to lose, and the constant temperature can be met only by extremely low energy consumption; circularly judging whether the working temperature is 5-55 ℃, starting the CT machine to work when the working temperature is reached, starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached, easily starting the CT machine at normal temperature, and preheating the CT machine to reach the working temperature required by the controller and other parts when the temperature in the CT machine is lower than 5 ℃ in winter; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine; the CT bulb tube and other components of the CT machine are ensured to work in the optimal temperature range by setting the optimal threshold temperature to be 5-45 ℃; the internal temperature threshold of the CT machine is 5-55 ℃, the refrigeration and heating semiconductor heating is started at the temperature lower than 5 ℃, and the refrigeration and heating semiconductor cooling is started at the temperature higher than 55 ℃; the two sides of the refrigerating and heating semiconductor are tightly attached to the radiating fins, the inner radiating fins face the interior of the machine shell and are provided with inner circulating fans, and the outer radiating fins are arranged on the CT machine and face the exterior of the machine shell; the two temperature sensors are arranged and are respectively installed in the machine frames on the two sides of the interior of the CT machine; the refrigerating and heating semiconductor is arranged at the bottom or the top of the CT machine; the temperature values of the two temperature sensors are detected and compared with a threshold value, and the refrigeration and heating semiconductor is started or stopped when the temperature values of the two temperature sensors do not meet the threshold value; the two refrigerating and heating semiconductors are arranged and are respectively arranged at the bottom and the top of the CT machine.
Example two
As a method for adjusting the internal temperature of a CT machine according to the first embodiment, the method for adjusting the internal temperature of a more preferred CT machine according to the first embodiment includes detecting the internal temperature of the CT machine by a temperature sensor after power-on, determining whether the internal temperature is lower than 10 ℃ for pre-heating or higher than 45 ℃ for pre-cooling, connecting heating and cooling semiconductors, i.e., P-type or N-type semiconductor cooling sheets, in parallel through temperature control switches at 10 ℃ and 45 ℃, controlling the heating and cooling semiconductors by a control module composed of IRF530 and IRF9530, whether the threshold value is less than 10 or higher than 45 ℃ is judged according to the internal temperature of the CT machine to start the internal circulating fan, the internal circulating fan is started when the threshold value is reached, the internal circulating fan is not started, the control is high-efficiency, the internal circulation enables the heating or cooling speed to be higher, the internal temperature of the CT machine in the closed space formed by the shell is not easy to lose, and the constant temperature can be met only by extremely low energy consumption; circularly judging whether the working temperature is 10-45 ℃, starting the CT machine to work when the working temperature is reached, starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached, easily starting the CT machine at normal temperature, and preheating the CT machine to reach the working temperature required by the controller and other parts when the temperature in the CT machine is lower than 10 ℃ in winter; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine; by setting the optimal threshold temperature to be 10-45 ℃, the CT bulb tube and other components of the CT machine are ensured to work in the optimal temperature range; the internal temperature threshold of the CT machine is 10-45 ℃, the refrigeration and heating semiconductor heating is started at the temperature lower than 10 ℃, and the refrigeration and heating semiconductor cooling is started at the temperature higher than 45 ℃.
EXAMPLE III
As in the method for adjusting the internal temperature of the CT machine according to the first or second embodiment, in the method for adjusting the internal temperature of the CT machine provided by this embodiment, the temperature sensor detects the internal temperature of the CT machine after being powered on, and determines whether the internal temperature is lower than 15 ℃ for pre-heating or higher than 38 ℃ for pre-cooling, the pre-heating or pre-cooling is performed by connecting heating and cooling semiconductors, i.e. P-type or N-type semiconductor chilling plates, in parallel via 15 ℃ and 38 ℃ temperature control switches, the heating and cooling semiconductors are controlled by the control module formed by IRF530 and IRF9530, whether the threshold value is less than 15 or higher than 38 ℃ is judged according to the internal temperature of the CT machine to start the internal circulating fan, the internal circulating fan is started up when the threshold value is reached, the internal circulating fan is not started up, the control is efficient, the internal circulation enables the heating or cooling speed to be higher, the internal temperature of the CT machine in the closed space formed by the shell is not easy to lose, and the constant temperature can be met only by extremely low energy consumption; circularly judging whether the working temperature is 15-38 ℃, starting the CT machine to work when the working temperature is reached, starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached, easily starting the CT machine at normal temperature, and preheating the CT machine to reach the working temperature required by the controller and other parts when the temperature in the CT machine is lower than 15 ℃ in winter; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine; by setting the optimal threshold temperature to be 15-38 ℃, the CT bulb tube and other components of the CT machine can be ensured to work in a better temperature range; the temperature adjusting method by parallel control of the temperature sensor and the temperature control switch can play the roles of preheating and precooling; the internal temperature threshold of the CT machine is 15-38 ℃, the refrigeration and heating semiconductor heating is started at the temperature lower than 15 ℃, and the refrigeration and heating semiconductor cooling is started at the temperature higher than 38 ℃.
Example four
As one, two or three embodiments of the method for adjusting the internal temperature of the CT machine, the method for adjusting the internal temperature of the CT machine provided by this embodiment is a more preferable method for adjusting the internal temperature of the CT machine, in which a temperature sensor detects the internal temperature of the CT machine after being powered on, and determines whether the internal temperature is lower than 18 ℃ for preheating or higher than 32 ℃ for precooling, the preheating or precooling is performed by connecting heating and cooling semiconductors, i.e. P-type or N-type semiconductor cooling fins, in parallel through temperature control switches at 18 ℃ and 32 ℃, the heating and cooling semiconductors are controlled by a control module composed of IRF530 and IRF9530, and according to the internal temperature of the CT machine, whether the internal temperature reaches a threshold value smaller than 18 or higher than 32 ℃ for starting the internal circulation fan, the internal circulation fan is started without starting, so that the internal circulation fan has high control efficiency, the internal circulation makes the heating or cooling speed faster, and the internal temperature in the enclosed space, the constant temperature can be met only by extremely low energy consumption; circularly judging whether the working temperature is 18-32 ℃, starting the CT machine to work when the working temperature is reached, starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached, easily starting the CT machine at normal temperature, and preheating the CT machine to reach the working temperature required by the controller and other parts when the temperature in the CT machine is lower than 18 ℃ in winter; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine; by setting the optimal threshold temperature to be 18-32 ℃, the CT bulb and other parts of the CT machine can work in the optimal temperature range, the semiconductor material can not be interfered, and the power is low.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for adjusting the internal temperature of a CT machine is characterized in that a temperature sensor detects the internal temperature of the CT machine after being electrified; judging whether a threshold value is reached according to the internal temperature of the CT machine to start the internal circulating fan, starting the internal circulating fan when the threshold value is reached, and not starting the internal circulating fan when the threshold value is not reached; judging whether the working temperature is reached, starting the CT machine to work when the working temperature is reached, and starting the refrigeration and heating semiconductor and the internal circulating fan to work when the working temperature is not reached; judging whether the working temperature is reached again, starting the CT machine to work when the working temperature is reached, and continuing to work the refrigerating and heating semiconductor and the internal circulating fan if the working temperature is not reached; judging whether the working temperature threshold is exceeded or not, and stopping the work of the refrigerating and heating semiconductor and the internal circulating fan if the working temperature threshold is exceeded; the temperature sensor circularly detects the internal temperature of the CT machine, and judges whether to start or stop the work of the cooling and heating semiconductor and the internal circulating fan according to the detected internal environmental temperature of the CT machine.
2. The method for adjusting the internal temperature of the CT machine as claimed in claim 1, wherein the internal temperature threshold of the CT machine is 5-55 ℃, the cooling and heating semiconductor heating is started below 5 ℃, and the cooling and heating semiconductor cooling is started above 55 ℃.
3. The method for adjusting the internal temperature of the CT machine as claimed in claim 1, wherein the internal temperature threshold of the CT machine is 10-45 ℃, the cooling and heating semiconductor heating is started at a temperature lower than 10 ℃, and the cooling and heating semiconductor cooling is started at a temperature higher than 45 ℃.
4. The method for adjusting the internal temperature of the CT machine as claimed in claim 1, wherein the internal temperature threshold of the CT machine is 15-38 ℃, the cooling and heating semiconductor heating is started below 15 ℃, and the cooling and heating semiconductor cooling is started above 38 ℃.
5. The method of claim 1, wherein the cooling and heating semiconductor is attached to the heat sink on both sides, the inner heat sink faces the inside of the casing and is installed with an internal circulation fan, and the outer heat sink is disposed outside the casing of the CT apparatus.
6. The method as claimed in claim 1, wherein the temperature sensor is disposed in two parts and is respectively installed in the machine frame at two sides of the inside of the CT machine.
7. The method of claim 1, wherein the cooling and heating semiconductor is disposed at the bottom or top of the CT machine.
8. The method for adjusting the internal temperature of the CT machine according to claim 1, wherein the temperature values of the two temperature sensors are detected and compared with a threshold value, and the cooling and heating semiconductor is started or stopped when the temperature values of the two temperature sensors do not meet the threshold value.
9. The method as claimed in claim 1, wherein the cooling and heating semiconductors are disposed in two, and disposed at the bottom and the top of the CT machine respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179894.7A CN112294351A (en) | 2020-10-29 | 2020-10-29 | Internal temperature adjusting method of CT (computed tomography) machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179894.7A CN112294351A (en) | 2020-10-29 | 2020-10-29 | Internal temperature adjusting method of CT (computed tomography) machine |
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| Publication Number | Publication Date |
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| CN112294351A true CN112294351A (en) | 2021-02-02 |
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|---|---|---|---|
| CN202011179894.7A Withdrawn CN112294351A (en) | 2020-10-29 | 2020-10-29 | Internal temperature adjusting method of CT (computed tomography) machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146278A (en) * | 2021-11-23 | 2022-03-08 | 中国人民解放军西部战区总医院 | Artificial nose suitable for different tracheal cannula interfaces and capable of automatically controlling temperature and sucking phlegm |
-
2020
- 2020-10-29 CN CN202011179894.7A patent/CN112294351A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146278A (en) * | 2021-11-23 | 2022-03-08 | 中国人民解放军西部战区总医院 | Artificial nose suitable for different tracheal cannula interfaces and capable of automatically controlling temperature and sucking phlegm |
| CN114146278B (en) * | 2021-11-23 | 2024-06-04 | 中国人民解放军西部战区总医院 | Artificial nose suitable for automatic temperature control sputum aspiration of different tracheal cannula interfaces |
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