Pipeline temperature detection device and blood purification equipment

Abstract

The utility model discloses a pipeline temperature detection device and blood purification equipment, and relates to the technical field of temperature detection.The pipeline temperature detection device is characterized in that the bottom of a volumetric kettle is connected with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is used for being connected with a liquid outlet of a heater, the liquid outlet pipe is used for being connected with a peristaltic pump, and the top of the volumetric kettle is connected with an exhaust pipe; the exhaust pipe is provided with a conduction plugging mechanism, the fixing device is used for fixing the liquid inlet pipe and the liquid outlet pipe, and a temperature sensor is arranged in the fixing device and used for detecting the temperature of liquid in the liquid outlet pipe in real time. The volume pot is arranged to store treatment liquid, the volume pot guarantees liquid outlet continuity, the liquid outlet discontinuity caused by a peristaltic pump can be avoided, the temperature detected by the temperature sensor is in a stable state, the temperature collecting accuracy of the temperature sensor is improved, and the fluctuation range of collected temperature data is reduced; therefore, the temperature stability of the heated treatment liquid is improved, and the safety in the treatment process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of temperature detection, and in particular to a pipeline temperature detection device and a blood purification device. Background Art

[0002] Peristaltic pumps are extremely important independent units in blood purification equipment. Currently, peristaltic pump technology is used in blood pumps, dialysate pumps, replacement fluid pumps, waste fluid pumps, citrate pumps, calcium pumps and other units in blood purification equipment on the market.

[0003] The heater outlet of the existing blood purification device is connected to the peristaltic pump. During use, since the liquid ejected by the peristaltic pump is not continuous, especially under low flow rate conditions, the liquid discontinuity phenomenon lasts for a long time. When the peristaltic pump does not eject therapeutic liquid, that is, when the therapeutic liquid output is discontinuous, the temperature measured by the temperature sensor is the temperature of the therapeutic liquid stagnant in the pipeline at this time, and there will be a temperature drop phenomenon. When the situation that the peristaltic pump does not eject therapeutic liquid is ignored, it is assumed that the outflowing therapeutic liquid is continuous at all times, but in actual practice, the temperature of the therapeutic liquid measured by the temperature sensor presents a broken line distribution. The control system of the heater regulates the heater according to the temperature detected by the temperature sensor. Therefore, if the temperature data collected by the temperature sensor is inaccurate and fluctuates greatly, it will cause the control system of the heater to be disordered, and cause the temperature fluctuation range of the heated therapeutic liquid to be too large, affecting the patient's treatment safety.

[0004] Therefore, how to improve the accuracy of the temperature collected by the temperature sensor, reduce the fluctuation range of the collected temperature data, improve the temperature stability of the heated treatment fluid, and enhance the safety of the patient during treatment are problems that technical personnel in this field need to solve. Utility Model Content

[0005] The purpose of this application is to provide a pipeline temperature detection device and a blood purification device, which are used to solve the problem that the liquid ejected by the peristaltic pump is not continuous, the temperature data collected by the temperature sensor is inaccurate and fluctuates greatly, resulting in a disorder in the control system of the heater and causing the temperature of the heated treatment fluid to fluctuate too much, affecting the patient's treatment safety.

[0006] In order to solve the above technical problems, the present application provides a pipeline temperature detection device, including: a capacity pot, a liquid inlet pipe, a liquid outlet pipe, an exhaust pipe, a conduction and blocking mechanism, a fixing device and a temperature sensor;

[0007] The bottom of the capacity pot is respectively connected to the liquid inlet pipe and the liquid outlet pipe, the liquid inlet pipe is used to be connected to the liquid outlet of the heater, the liquid outlet pipe is used to be connected to the peristaltic pump, the top of the capacity pot is connected to the exhaust pipe, the exhaust pipe is provided with the conducting and blocking mechanism, the conducting and blocking mechanism is used to block or conduct the exhaust pipe, the fixing device is used to fix the liquid inlet pipe and the liquid outlet pipe, the fixing device is provided with a temperature sensor inside, the temperature sensor is used to detect the temperature of the liquid in the liquid outlet pipe in real time.

[0008] Optionally, the fixing device is a box body, which includes a seat body and a cover that are openably connected, and when the seat body and the cover are closed, a hollow channel that runs through both ends of the box body is formed in the box body.

[0009] Optionally, the inner wall of the cover is provided with a first groove and a second groove, and the inner wall of the base body is provided with a third groove and a fourth groove. When the base body and the cover are closed, the first groove and the third groove form a first channel adapted to the liquid inlet pipe, and the second groove and the fourth groove form a second channel adapted to the liquid outlet pipe.

[0010] Optionally, the end of the liquid inlet pipe connected to the volumetric pot is sleeved with a first sleeve, and one end of the first sleeve is connected to the volumetric pot, the end of the liquid outlet pipe connected to the volumetric pot is sleeved with a second sleeve, and one end of the second sleeve is connected to the volumetric pot, the inner wall of the cover is provided with a fifth groove, and the inner wall of the seat body is provided with a sixth groove, the fifth groove is respectively connected to the first groove and the second groove, the sixth groove is respectively connected to the third groove and the fourth groove, and when the seat body and the cover are closed, the fifth groove and the sixth groove form a third channel for accommodating the first sleeve and the second sleeve.

[0011] Optionally, the bottom of the capacity pot is arranged at a limiting portion, and the limiting portion is used to abut against the edge of the top opening of the hollow channel.

[0012] Optionally, the first side of the base is hinged to the first side of the cover, the second side of the cover is provided with a plug-in portion, the second side of the base is provided with a slot matched with the plug-in portion, and the cover and the base are plugged together through the plug-in portion and the slot.

[0013] Optionally, a detection switch is provided in the slot, and the detection switch is used to detect whether the plug-in portion is plugged in place.

[0014] Optionally, the conducting and blocking mechanism is a stopper clamp, and the stopper clamp is provided on the exhaust pipe.

[0015] Optionally, a receiving cavity is provided in the second groove or the fourth groove, and the receiving cavity is used to receive the temperature sensor.

[0016] The present application also provides a blood purification device, comprising a heater and the pipeline temperature detection device.

[0017] The present application provides a pipeline temperature detection device, including: a volume pot, a liquid inlet pipe, a liquid outlet pipe, an exhaust pipe, a conduction and blocking mechanism, a fixing device and a temperature sensor; the bottom of the volume pot is respectively connected to the liquid inlet pipe and the liquid outlet pipe, the liquid inlet pipe is used to connect with the liquid outlet of the heater, the liquid outlet pipe is used to connect with the peristaltic pump, the top of the volume pot is connected to the exhaust pipe, the exhaust pipe is provided with a conduction and blocking mechanism, the conduction and blocking mechanism is used to block or conduct the exhaust pipe, the fixing device is used to fix the liquid inlet pipe and the liquid outlet pipe, and a temperature sensor is provided inside the fixing device, and the temperature sensor is used to detect the temperature of the liquid in the liquid outlet pipe in real time. By setting the volume pot to store the treatment liquid, the continuity of the liquid discharge of the volume pot can avoid the discontinuous liquid discharge caused by the peristaltic pump, so that the temperature detected by the temperature sensor is in a stable state, the accuracy of the temperature collected by the temperature sensor is improved, and the fluctuation range of the collected temperature data is reduced, thereby improving the temperature stability of the heated treatment liquid and improving the safety of the patient during the treatment process. In addition, the conductive sealing mechanism can discharge the gas discharged by the heater during the pre-charging process; the fixing device can ensure that the capacity pot will not be turned upside down, avoiding the bending of the liquid inlet pipe and the liquid outlet pipe.

[0018] The present application also provides a blood purification device, including a heater and the pipeline temperature detection device, with the effects as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A structural diagram of a pipeline temperature detection device provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the connection between a liquid inlet pipe and a liquid outlet pipe and a fixing device respectively provided in an embodiment of the present application;

[0022] Figure 3 A cross-sectional view of a fixing device provided in an embodiment of the present application;

[0023] Figure 4 A structural diagram of a capacity pot, a liquid inlet pipe, a liquid outlet pipe and an exhaust pipe provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the connection between a pipeline temperature detection device and a heating bag provided in an embodiment of the present application;

[0025] The figure numbers are as follows: 1 is a capacity pot, 2 is a liquid inlet pipe, 3 is a liquid outlet pipe, 4 is an exhaust pipe, 5 is a fixing device, 6 is a first groove, 7 is a second groove, 8 is a fifth groove, 9 is a plug-in part, 10 is a slot, 11 is a limit part, 12 is a temperature sensor, 13 is a detection switch, 14 is a first channel, 15 is a second channel, 16 is a first sleeve, 17 is a second sleeve, 18 is a stop clamp, 19 is a heating bag, 20 is a liquid inlet conduit, 501 is a seat, and 502 is a cover. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The core of this application is to provide a pipeline temperature detection device and a blood purification device, which are used to improve the accuracy of the temperature collected by the temperature sensor, reduce the fluctuation range of the collected temperature data, improve the temperature stability of the heated treatment fluid, and enhance the safety of patients during treatment.

[0028] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Figure 1 A structural diagram of a pipeline temperature detection device provided in an embodiment of the present application, such as Figure 1 As shown, the pipeline temperature detection device includes: a capacity pot 1, a liquid inlet pipe 2, a liquid outlet pipe 3, an exhaust pipe 4, a conduction and blocking mechanism, a fixing device 5 and a temperature sensor 12; the bottom of the capacity pot 1 is respectively connected to the liquid inlet pipe 2 and the liquid outlet pipe 3, the liquid inlet pipe 2 is used to be connected to the liquid outlet of the heater, the liquid outlet pipe 3 is used to be connected to the peristaltic pump, the top of the capacity pot 1 is connected to the exhaust pipe 4, the exhaust pipe 4 is provided with a conduction and blocking mechanism, the conduction and blocking mechanism is used to block or conduct the exhaust pipe 4, the fixing device 5 is used to fix the liquid inlet pipe 2 and the liquid outlet pipe 3, the fixing device 5 is provided with a temperature sensor 12, and the fixing device 5 is located between the peristaltic pump and the capacity pot 1, and the temperature sensor 12 is used to detect the temperature of the liquid in the liquid outlet pipe 3 in real time.

[0030] The embodiment of the present application does not limit the shape and volume of the capacity pot 1. Specifically, the capacity pot 1 can be set to a cylindrical shape, and the volume can be not less than 5 ml. Usually, about 5 ml of therapeutic liquid is stored in the capacity pot 1 to ensure the continuity of the therapeutic liquid in the liquid outlet pipe 3 of the capacity pot 1. The bottom of the capacity pot 1 is connected to the inlet pipe 2 and the outlet pipe 3 respectively, and the top of the capacity pot 1 is connected to the exhaust pipe 4. The exhaust pipe 4 is provided with a conduction and blocking mechanism. The embodiment of the present application does not specifically limit the conduction and blocking mechanism. It can be a stop valve or a stop clamp 18, etc. The stop clamp 18 is sleeved on the exhaust pipe 4. By arranging a conduction and blocking mechanism on the exhaust pipe 4, the gas discharged by the heater during the pre-charging process can be discharged. The embodiment of the present application does not specifically limit the fixing device 5, which mainly ensures that the capacity pot 1 will not be turned upside down, avoids the bending of the inlet pipe 2 and the outlet pipe 3, and ensures the correctness of the pipeline installation. The liquid inlet pipe 2 is connected to the heater, and is used to input the heated therapeutic liquid in the heater into the volume pot 1. The liquid outlet pipe 3 is connected to the peristaltic pump, and the heated therapeutic liquid is input into the weighing system of the blood purification equipment through the peristaltic pump. There are two main ways to flush the heated therapeutic liquid into the volume pot 1. One is to invert the volume pot 1 so that the heated therapeutic liquid is filled into a certain volume in the pot and then placed upright. After being placed upright, the inlet pipe and the liquid outlet pipe 3 are fixed by the fixing device 5; the second way is to open the conduction and blocking mechanism of the exhaust pipe 4 of the volume pot 1, and the liquid level of the heated therapeutic liquid will rise. After the heated therapeutic liquid is filled into a certain volume in the pot, the conduction and blocking mechanism are closed. The embodiment of the present application does not specifically limit how the temperature sensor 12 is arranged inside the fixing device 5. The temperature detected by the temperature sensor 12 is fed back to the control system of the heater so that the control system can adjust the power of the heater, etc.

[0031] A pipeline temperature detection device provided by the embodiment of the present application includes: a volume pot, a liquid inlet pipe, a liquid outlet pipe, an exhaust pipe, a conduction and blocking mechanism, a fixing device and a temperature sensor; the bottom of the volume pot is connected to the liquid inlet pipe and the liquid outlet pipe respectively, the liquid inlet pipe is used to connect with the liquid outlet of the heater, the liquid outlet pipe is used to connect with the peristaltic pump, the top of the volume pot is connected to the exhaust pipe, the exhaust pipe is provided with a conduction and blocking mechanism, the conduction and blocking mechanism is used to block or conduct the exhaust pipe, the fixing device is used to fix the liquid inlet pipe and the liquid outlet pipe, and a temperature sensor is provided inside the fixing device, and the temperature sensor is used to detect the temperature of the liquid in the liquid outlet pipe in real time. By setting the volume pot to store the treatment liquid, the continuity of the liquid discharge of the volume pot can avoid the discontinuous liquid discharge caused by the peristaltic pump, so that the temperature detected by the temperature sensor is in a stable state, the accuracy of the temperature collected by the temperature sensor is improved, and the fluctuation range of the collected temperature data is reduced, thereby improving the temperature stability of the heated treatment liquid and improving the safety of the patient during the treatment process. In addition, the conductive sealing mechanism can discharge the gas discharged by the heater during the pre-charging process; the fixing device can ensure that the capacity pot will not be turned upside down, avoiding the bending of the liquid inlet pipe and the liquid outlet pipe.

[0032] Based on the above embodiments, the fixing device 5 of the embodiment of the present application is a box body, which includes a seat body 501 and a cover 502 that can be opened and closed. When the seat body 501 and the cover 502 are closed, a hollow channel running through the two ends of the top of the box body is formed in the box body.

[0033] The embodiment of the present application does not limit the specific way in which the seat body 501 and the cover 502 can be opened and closed, nor does it limit the specific structure of the hollow channel. The function of the hollow channel is to serve as a channel for the liquid inlet pipe 2 and the liquid outlet pipe 3 to enter and extend out of the fixing device 5.

[0034] Figure 2 A schematic diagram of the connection between a liquid inlet pipe and a liquid outlet pipe and a fixing device provided in an embodiment of the present application, Figure 3 A cross-sectional view of a fixing device provided in an embodiment of the present application, such as Figure 2 and Figure 3 As shown, the first side of the seat body 501 is hinged to the first side of the cover 502, the second side of the cover 502 is arranged on the plug-in portion 9, the second side of the seat body 501 is provided with a slot 10 adapted to the plug-in portion 9, and the cover 502 and the seat body 501 are plugged in through the plug-in portion 9 and the slot 10; the first side of the seat body 501 and the first side of the cover 502 can be hinged through a rotating shaft; a detection switch 13 can be provided in the slot 10, and the detection switch 13 is used to detect whether the plug-in portion 9 is plugged in place. When the slot 10 is plugged in place, the detection switch 13 will be triggered, so that the detection switch 13 detects whether the cover 502 is closed in place. If it is not in place, an alarm prompt can be issued. Accordingly, an alarm device communicating with the detection switch 13 can be added.

[0035] like Figure 2 As shown, the inner wall of the cover 502 is provided with a first groove 6 and a second groove 7, and the inner wall of the seat body 501 is provided with a third groove and a fourth groove. When the seat body 501 and the cover 502 are closed, the first groove 6 and the third groove form a first channel 14 adapted to the liquid inlet pipe 2, and the second groove 7 and the fourth groove form a second channel 15 adapted to the liquid outlet pipe 3. For better fixation, the first channel 14 can be interference fit with the liquid inlet pipe 2, and the second channel 15 can be interference fit with the liquid outlet pipe 3. Based on this, the first channel 14 and the second channel 15 constitute a hollow channel.

[0036] Figure 4 A structural diagram of a capacity pot, a liquid inlet pipe, a liquid outlet pipe and an exhaust pipe provided in an embodiment of the present application is shown in FIG. Figure 4As shown, the end of the liquid inlet pipe 2 connected to the capacity pot 1 is sleeved with a first sleeve 16, and one end of the first sleeve 16 is connected to the capacity pot 1, the end of the liquid outlet pipe 3 connected to the capacity pot 1 is sleeved with a second sleeve 17, and one end of the second sleeve 17 is connected to the capacity pot 1, the inner wall of the cover 502 is provided with a fifth groove 8, and the inner wall of the seat body 501 is provided with a sixth groove, the fifth groove 8 is connected to the first groove 6 and the second groove 7 respectively, and the sixth groove is connected to the third groove and the fourth groove respectively. When the seat body 501 and the cover 502 are closed, the fifth groove 8 and the sixth groove form a third channel for accommodating the first sleeve 16 and the second sleeve 17. In order to better connect the capacity pot 1 with the night inlet pipe and the liquid outlet pipe 3 respectively, the first sleeve 16 and the second sleeve 17 are connected to the bottom of the capacity pot 1 respectively, the first sleeve 16 is sleeved on the night inlet pipe, and the second sleeve 17 is sleeved on the liquid outlet pipe 3. Correspondingly, the inner wall of the cover 502 is provided with a fifth groove 8, and the inner wall of the seat body 501 is provided with a sixth groove, and the fifth groove 8 and the sixth groove form a third channel for accommodating the first sleeve 16 and the second sleeve 17. Based on this, the first channel 14, the second channel 15 and the third channel constitute the hollow channel mentioned above.

[0037] like Figure 4 As shown, the bottom of the capacity pot 1 is provided at a limit portion 11, and the limit portion 11 is used to abut against the edge of the top opening of the hollow channel. The embodiment of the present application does not specifically limit the shape of the limit portion 11, which can be a hollow truncated cone, sleeved on the bottom of the capacity pot 1.

[0038] Based on the above embodiments, the embodiments of the present application provide a method for fixing the temperature sensor 12. A housing cavity may be provided in the second groove 7 or the fourth groove. The housing cavity is used to accommodate the temperature sensor 12. When the liquid outlet pipe 3 is inserted into the second channel 15 formed by the second groove 7 and the fourth groove, the temperature sensor 12 is attached to the liquid outlet pipe 3 and can be used to detect the temperature of the liquid in the liquid outlet pipe 3 in real time. Of course, a fixing member may also be provided in the second groove 7 or the fourth groove, and the temperature sensor 12 may be fixed by the fixing member. The temperature sensor 12 is arranged inside the fixing device 5, which can reduce the interference of the external environment on the temperature sensor 12. The fixing device 5 also has a certain insulation effect on the section of the liquid outlet pipe 3 detected by the temperature detection sensor.

[0039] Finally, the present application also provides a blood purification device, including a heater and the above-mentioned pipeline temperature detection device. The embodiment of the present application does not specifically limit the heater, and the heater includes a heating bag 19, a heating box and a heating sheet, the inner wall of the heating box is provided with a plurality of heating sheets, the heating bag 19 is loaded into the heating box, and the heating sheet is attached to the surface of the heating bag 19 to heat the dialysate in the heating bag 19. Figure 5 A schematic diagram of a pipeline temperature detection device connected to a heating bag provided in an embodiment of the present application is shown in FIG. Figure 5As shown, the liquid outlet pipe 3 is connected to the liquid outlet of the heating bag 19, and the liquid inlet conduit 20 of the heating bag 19 extends into the bottom of the heating bag 19 through the liquid inlet of the heating bag 19. The pipeline temperature detection device has been introduced in detail above and will not be repeated here.

[0040] A blood purification device provided by the embodiment of the present application includes a heater and a pipeline temperature detection device, the pipeline temperature detection device includes: a volume pot, a liquid inlet pipe, a liquid outlet pipe, an exhaust pipe, a conduction and blocking mechanism, a fixing device and a temperature sensor; the bottom of the volume pot is respectively connected to the liquid inlet pipe and the liquid outlet pipe, the liquid inlet pipe is used to connect with the liquid outlet of the heater, the liquid outlet pipe is used to connect with the peristaltic pump, the top of the volume pot is connected to the exhaust pipe, the exhaust pipe is provided with a conduction and blocking mechanism, the conduction and blocking mechanism is used to block or conduct the exhaust pipe, the fixing device is used to fix the liquid inlet pipe and the liquid outlet pipe, and a temperature sensor is provided inside the fixing device, and the temperature sensor is used to detect the temperature of the liquid in the liquid outlet pipe in real time. By setting the volume pot to store the treatment liquid, the continuity of the liquid discharge of the volume pot can avoid the discontinuous discharge caused by the peristaltic pump, so that the temperature detected by the temperature sensor is in a stable state, the accuracy of the temperature collected by the temperature sensor is improved, and the fluctuation range of the collected temperature data is reduced, thereby improving the temperature stability of the heated treatment liquid and improving the safety of the patient during the treatment process. In addition, the conductive sealing mechanism can discharge the gas discharged by the heater during the pre-charging process; the fixing device can ensure that the capacity pot will not be turned upside down, avoiding the bending of the liquid inlet pipe and the liquid outlet pipe.

[0041] The above is a detailed introduction to a pipeline temperature detection device and a blood purification device provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can refer to each other. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0042] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A pipeline temperature detection device, characterized in that: include: A capacity pot (1), a liquid inlet pipe (2), a liquid outlet pipe (3), an exhaust pipe (4), a conducting and blocking mechanism, a fixing device (5), and a temperature sensor (12); The bottom of the volume pot (1) is connected to the liquid inlet pipe (2) and the liquid outlet pipe (3), respectively; the liquid inlet pipe (2) is used to be connected to the liquid outlet of the heater; the liquid outlet pipe (3) is used to be connected to the peristaltic pump; the top of the volume pot (1) is connected to the exhaust pipe (4); the exhaust pipe (4) is provided with the conduction and blocking mechanism; the conduction and blocking mechanism is used to block or conduct the exhaust pipe (4); the fixing device (5) is used to fix the liquid inlet pipe (2) and the liquid outlet pipe (3); a temperature sensor (12) is provided inside the fixing device (5); the temperature sensor (12) is used to detect the temperature of the liquid in the liquid outlet pipe (3) in real time.

2. The pipeline temperature detection device according to claim 1, characterized in that: The fixing device (5) is a box body, which comprises a seat body (501) and a cover (502) that can be opened and closed. When the seat body (501) and the cover (502) are closed, a hollow passage that passes through both ends of the box body is formed in the box body.

3. The pipeline temperature detection device according to claim 2, characterized in that: The inner wall of the cover (502) is provided with a first groove (6) and a second groove (7), and the inner wall of the base (501) is provided with a third groove and a fourth groove. When the base (501) and the cover (502) are closed, the first groove (6) and the third groove form a first channel (14) adapted to the liquid inlet pipe (2), and the second groove (7) and the fourth groove form a second channel (15) adapted to the liquid outlet pipe (3).

4. The pipeline temperature detection device according to claim 3, characterized in that: The end of the liquid inlet pipe (2) connected to the volume pot (1) is sleeved with a first sleeve (16), and one end of the first sleeve (16) is connected to the volume pot (1); the end of the liquid outlet pipe (3) connected to the volume pot (1) is sleeved with a second sleeve (17), and one end of the second sleeve (17) is connected to the volume pot (1); the inner wall of the cover (502) is provided with a fifth groove (8); the inner wall of the base (501) is provided with a sixth groove; the fifth groove (8) is respectively connected to the first groove (6) and the second groove (7); the sixth groove is respectively connected to the third groove and the fourth groove; when the base (501) and the cover (502) are closed, the fifth groove (8) and the sixth groove form a third channel for accommodating the first sleeve (16) and the second sleeve (17).

5. The pipeline temperature detection device according to claim 4, characterized in that: The bottom of the capacity pot (1) is arranged on a limiting portion (11), and the limiting portion (11) is used to abut against the edge of the top opening of the hollow channel.

6. The pipeline temperature detection device according to any one of claims 2 to 5, characterized in that: The first side of the base (501) is hinged to the first side of the cover (502); the second side of the cover (502) is provided with an inserting portion (9); the second side of the base (501) is provided with a slot (10) matched with the inserting portion (9); the cover (502) and the base (501) are plugged together via the inserting portion (9) and the slot (10).

7. The pipeline temperature detection device according to claim 6, characterized in that: A detection switch (13) is provided in the slot (10), and the detection switch (13) is used to detect whether the plug-in portion (9) is plugged in place.

8. The pipeline temperature detection device according to claim 1, characterized in that: The conducting and blocking mechanism is a flow-stopping clamp (18), and the flow-stopping clamp (18) is sleeved on the exhaust pipe (4).

9. The pipeline temperature detection device according to claim 3, characterized in that: A receiving cavity is provided in the second groove (7) or the fourth groove, and the receiving cavity is used to receive the temperature sensor (12).

10. A blood purification device, comprising a heater and the pipeline temperature detection device according to any one of claims 1 to 9.

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