Pressure measuring device for nuclear power pipeline fluid

Abstract

The invention relates to the technical field of pressure measurement, in particular to a pressure measuring device for nuclear power pipeline fluid. The device comprises a protection unit which comprises a protection shell and a pressure sensor detachably arranged on the protection shell; the control unit comprises an air pump arranged on the outer side of the protection shell and a cooling assembly arranged on the air pump, and the protection unit is connected with the control unit; the protection unit is used for preventing radiation influence; and the control unit is used for cooling treatment. The pressure sensor has the beneficial effects that through the design of the protection unit, the pressure sensor is prevented from being influenced by radiation; and through the design of the cooling assembly, cooling treatment of the device is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure measurement, and particularly to a pressure measurement device for nuclear power pipeline fluid. Background Art

[0002] As an efficient and relatively low-carbon energy source, nuclear energy plays an increasingly important role in the energy structure. Nuclear power plants generate heat energy through nuclear fuel fission reactions in nuclear reactors, and then use a series of complex heat exchange and energy conversion systems to convert heat energy into electrical energy. During the operation of this entire set of nuclear power facilities, there are a large number of pipeline systems for transporting various fluids (such as coolants, steam, etc.), and the pressure conditions of the pipeline fluids play a crucial role in the safe and stable operation of the entire nuclear power plant.

[0003] Currently, there are many types of devices for fluid pressure measurement, such as piezoresistive pressure sensors, capacitive pressure sensors, piezoelectric pressure sensors, etc. As is well known, there is a large amount of radiation in nuclear power plants. In a long-term radiation environment, the performance of materials may change. Therefore, in a high-radiation environment, radiation particles interact with components such as sensitive elements and electronic circuits inside the pressure sensor, which may change its physical or chemical properties. When in high radiation for a long time, radiation may break the chemical bonds of some materials and damage their molecular structures, resulting in a decline in the performance of materials such as strength and toughness. For example, after a ceramic sensitive element is exposed to high radiation, microcracks may appear, reducing its mechanical properties and the ability to sense pressure. Therefore, protection needs to be provided for pressure sensors used in the nuclear power field. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a pressure measurement device for nuclear power pipeline fluid, aiming to improve the problem that the pressure sensor lacks protection in a high-radiation environment, resulting in performance degradation.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A pressure measurement device for nuclear power pipeline fluid, which includes a protection unit, including a protective shell and a pressure sensor detachably arranged on the protective shell; a control unit, including an air pump arranged outside the protective shell and a cooling component arranged on the air pump, wherein the protection unit is connected to the control unit;

[0007] The protection unit is used to prevent being affected by radiation;

[0008] The control unit is used to perform temperature reduction treatment.

[0009] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, further comprising a pipe body, a branch pipe is arranged on the outer side of the pipe body; an external thread is arranged at the bottom of the pressure sensor, and the bottom of the pressure sensor is inserted into the branch pipe.

[0010] The protective shell of the present invention includes a first shell body, a second shell body arranged on the first shell body, a plurality of groups of hoop fasteners sleeved on the outer sides of the first shell body and the second shell body, and rubber plates respectively arranged on the inner sides of the first shell body and the second shell body, and the rubber plates are in close contact with the branch pipe.

[0011] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, the protective shell further includes clamping plates, and the clamping plates are arranged at the bottoms of the first shell body and the second shell body respectively. The two clamping plates are spliced and connected and sleeved on the pipe body.

[0012] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, the first shell body includes a side shell and a top plate fixedly arranged at the top of the side shell, and the top plate is in sealed contact with the second shell body; both the side shell and the second shell body are arc-shaped plates with a central angle of 180°.

[0013] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, an arc-shaped groove is arranged on the side shell, a rubber column is arranged on the side wall of the second shell body, and the rubber column is arranged inside the arc-shaped groove; first arc-shaped holes and second arc-shaped holes are respectively arranged on the adjacent edges of the side shell and the second shell body, and the end of the pressure sensor is hermetically penetrated through the first arc-shaped hole and the second arc-shaped hole.

[0014] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, an air inlet pipe is fixedly arranged on the top plate in a communicating manner, and an air outlet pipe is fixedly arranged on the side wall of the side shell in a communicating manner; the air inlet pipe and the air outlet pipe are arranged far away from each other, and the air inlet pipe is communicated with the output end of the air pump.

[0015] As a preferred embodiment of the pressure measuring device for the nuclear power pipeline fluid of the present invention, the cooling assembly includes a frame body, air outlet holes arranged on the frame body, and four groups of semiconductor refrigeration sheets embedded on the four side walls of the frame body.

[0016] As a preferred embodiment of the pressure measuring device for the fluid in the nuclear power pipeline of the present invention, the following is provided: One end of the cooling assembly away from the air pump is sleeved with a rectangular plate. The interior of the rectangular plate is of a cavity structure. A connecting pipe is communicatively arranged on the side of the rectangular plate. A plurality of groups of spray nozzles are communicatively arranged on the four sides of the rectangular plate respectively. And a connecting plate is arranged at the corner of the rectangular plate. The connecting pipe is communicatively connected to the air outlet pipe.

[0017] As a preferred embodiment of the pressure measuring device for the fluid in the nuclear power pipeline of the present invention, the following is provided: A cover body is further arranged on one side of the rectangular plate away from the air pump. The cover body is of a frustum structure. An input pipe is communicatively arranged at the end of the cover body. The air pump includes a fixing plate and a sleeve fixed on the fixing plate. A stud is fixedly arranged on the side of the hoop, and the stud penetrates through the sleeve.

[0018] The beneficial effects of the present invention are as follows: Through the setting of the protective shell, the pressure sensor body located inside it is effectively protected, reducing the influence of radiation on the pressure sensor body, and providing support for effectively and accurately measuring the fluid pressure. By setting the cooling assembly, the gas entering its interior can be cooled. The low-temperature gas formed by cooling flows between the protective shell and the pressure sensor body under the action of the air pump, realizing the cooling treatment of the pressure sensor body and avoiding the increase in the temperature of the pressure sensor body from affecting its accuracy. By setting the rectangular plate, and the rectangular plate is communicatively connected to the air outlet pipe of the protective shell. Therefore, the gas flowing out of the protective shell gathers in the cavity of the rectangular plate and then is output from the spray nozzles on the side of the rectangular plate, realizing the heat dissipation and cooling treatment of the hot end of the semiconductor refrigeration sheet. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0020] Figure 1 is the first structural schematic diagram of the whole of the present invention;

[0021] Figure 2 is the second structural schematic diagram of the whole of the present invention;

[0022] Figure 3 is the structural schematic diagram of the pressure sensor, the protective shell and the cooling assembly of the present invention;

[0023] Figure 4 is the structural schematic diagram of the pressure sensor and the pipe body of the present invention;

[0024] Figure 5 is a schematic structural view of the protective case of the present invention;

[0025] Figure 6 is a schematic structural view of the first housing of the present invention;

[0026] Figure 7 is a schematic structural view of the second housing of the present invention;

[0027] Figure 8 is a schematic structural view of the first housing, the second housing, and the clamping plate of the present invention;

[0028] Figure 9 is a schematic structural view of the hoop of the present invention;

[0029] Figure 10 is a schematic structural view of the cooling component and the air pump of the present invention;

[0030] Figure 11 is the first schematic structural view of the cooling component of the present invention;

[0031] Figure 12 is the second schematic structural view of the cooling component of the present invention. Specific Embodiments

[0032] To make the above objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0033] Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention, but the present invention may be practiced in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0034] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0035] Embodiment 1

[0036] Referring to Figures 1 to 9 , which is the first embodiment of the present invention. This embodiment provides a device for detecting the aging degree of a cable. Through the setting of the protective case 101, the pressure sensor body 102 located inside it is effectively protected, and the influence of radiation on the pressure sensor 102 body is reduced, providing support for effectively and accurately measuring the fluid pressure;

[0037] Specifically, the protection unit 100 includes a protective shell 101 and a pressure sensor 102 detachably disposed on the protective shell;

[0038] The control unit 200 includes an air pump 201 disposed outside the protective shell 101 and a cooling component 202 disposed on the air pump 201, wherein the protection unit is connected to the control unit;

[0039] The protection unit 100 is used to prevent being affected by radiation;

[0040] The control unit 200 is used to perform a cooling process.

[0041] Furthermore, it further includes a pipe body 300, and branch pipes 301 are disposed on the outer side of the pipe body; an external thread 102a is provided at the bottom of the pressure sensor 102, and the bottom of the pressure sensor 102 is inserted into the branch pipe 301.

[0042] Furthermore, the protective shell 101 includes a first shell 101a, a second shell 101b disposed on the first shell 101a, several groups of hoop fasteners 101c sleeved outside the first shell 101a and the second shell 101b, and rubber plates 101d respectively disposed inside the first shell 101a and the second shell 101b, and the rubber plate 101d is in close contact with the branch pipe 301.

[0043] Furthermore, the protective shell 101 further includes clamping plates 101e, and clamping plates 101e are provided at the bottoms of both the first shell 101a and the second shell 101b. The two groups of clamping plates 101e are spliced and connected and sleeved on the pipe body 300.

[0044] Furthermore, the first shell 101a includes a side shell 101a-1 and a top plate 101a-2 fixedly disposed on the top of the side shell 101a-1, and the top plate 101a-2 is in sealed contact with the second shell 101b; both the side shell 101a-1 and the second shell 101b are provided as arc-shaped plates with a central angle of 180°.

[0045] Preferably, an arc-shaped groove 101a-11 is provided on the side shell 101a-1, a rubber post 101b-1 is provided on the side wall of the second shell 101b, and the rubber post 101b-1 is disposed inside the arc-shaped groove 101a-11; first arc-shaped holes 101a-12 and second arc-shaped holes 101b-2 are respectively provided on the adjacent edges of the side shell 101a-1 and the second shell 101b, and the end of the pressure sensor 102 is hermetically penetrated through the first arc-shaped hole 101a-12 and the second arc-shaped hole 101b-2.

[0046] Preferably, the top plate 101a-2 is communicated and fixedly provided with an air inlet pipe 101a-21, and the side wall of the side shell 101a-1 is communicated and fixedly provided with an air outlet pipe 101a-13; wherein the air inlet pipe 101a-21 and the air outlet pipe 101a-13 are arranged far away from each other, and the air inlet pipe 101a-21 is communicated and connected with the output end of the air pump 201.

[0047] It should be noted that the outer shell of the pressure sensor body 102 and the protective shell 101 are both made of anti-radiation materials, such as lead and its alloys, tungsten alloys, boron-containing polyethylene, barium rubber, etc. Utilizing the excellent properties of the above anti-radiation materials, a good working environment is provided for the devices inside the pressure sensor body 102. The outside of the data line of the pressure sensor body 102 can be coated with barium rubber to improve the anti-radiation ability of the data line. Under the action of the hoop 101c, the first housing 101a and the second housing 101b form a stable cylinder with an opening downward, which is convenient for the first housing 101a and the second housing 101b to be stably sleeved outside the pressure sensor body 102. The first rubber plate 101d and the second rubber plate 101d are in close contact with the branch pipe 301 to achieve the sealed contact between the protective shell 101 and the pressure sensor body 102. The two clamping plates 101e are spliced and sleeved on the pipe body 300, and the cooperation of the clamping plates 101e enhances the stability of the installation of the first housing 101a and the second housing 101b relative to the pipe body 300.

[0048] Embodiment 2

[0049] Refer to Figures 10 to 12 , which is the second embodiment of the present invention. Different from the first embodiment, it can also cool the gas entering its inside by setting a cooling component 202; by setting a rectangular plate 202d, and the rectangular plate 202d is communicated and connected with the air outlet pipe 101a-13 of the protective shell 101, the heat dissipation and cooling treatment of the hot end of the semiconductor refrigeration sheet 202c is realized.

[0050] Specifically, the protection unit 100 includes a protective shell 101 and a pressure sensor 102 detachably arranged on the protective shell;

[0051] The control unit 200 includes an air pump 201 arranged outside the protective shell 101 and a cooling component 202 arranged on the air pump 201, wherein the protection unit is connected to the control unit;

[0052] The protection unit 100 is used to prevent radiation effects;

[0053] The control unit 200 is used to perform cooling treatment.

[0054] Furthermore, in order to cool the gas to achieve the cooling process of the pressure sensor body 102, the cooling assembly 202 includes a housing 202a, a thermoelectric cooler 202c, etc. One end of the housing 202a is set to be open, and the other end is set to be a frustum structure. An air outlet 202b is provided at the end of the frustum structure. At the same time, a High-Efficiency Particulate Air (HEPA) filter is provided at the opening to remove minute particles in the air through the HEPA filter, thereby effectively blocking the particles carrying radiation from entering the housing 202a. In addition, the air outlet 202b is connected to the intake pipe of the air pump 201. Therefore, under the operation of the air pump 201, the filtered gas can be controlled to be pumped into the protective housing 101 to achieve the cooling process of the pressure sensor body 102. Four groups of thermoelectric coolers 202c are provided and are respectively embedded on the four side walls of the housing 202a, that is, the cold ends of the thermoelectric coolers 202c are arranged inside the housing 202a. Therefore, under the action of the thermoelectric coolers 202c, the gas entering the housing 202a can be cooled.

[0055] Preferably, in order to effectively achieve the heat dissipation process of the hot end of the thermoelectric cooler 202c, a rectangular plate 202d is sleeved at one end of the housing 202a away from the air pump 201. Connection plates 202g are provided at the end corners of the rectangular plate 202d, and the connection plates 202g are installed on the housing 202a. The inside of the rectangular plate 202d is set to be a cavity structure, and connecting pipes 202e are provided on the side walls in a communicating manner. The connecting pipes 202e are connected to the air outlet pipe 101a-13 in a communicating manner. Therefore, the low-temperature gas output from the protective housing 101 enters the cavity of the rectangular plate 202d. A plurality of nozzles 202f are provided on the four sides of the rectangular plate 202d in a communicating manner to provide a channel for the gas output in the rectangular plate 202d. And the nozzles 202f are arranged facing the thermoelectric cooler 202c. Therefore, the gas output from the nozzles 202f flows on the surface of the thermoelectric cooler 202c, thereby dissipating the heat accumulated at the hot end of the thermoelectric cooler 202c and achieving the cooling process of the hot end of the thermoelectric cooler 202c.

[0056] More preferably, the cables outside the air pump 201 and the thermoelectric cooler 202c can be coated with barium rubber to improve the radiation resistance of the data cables.

[0057] More preferably, a cover 202h can also be provided on the side of the rectangular plate 202d away from the air pump 201. The cover 202h is set to be a frustum structure, and an input pipe 202i is provided at the end in a communicating manner. At the same time, it is installed at the opening of the housing 202a. In addition, the cover 202h is made of radiation-resistant material.

[0058] It should be noted that under the action of the air pump 201, the external gas can be sucked into the cooling component 202, and the temperature of the gas is reduced under the action of the cooling component 202. The gas with reduced temperature enters the protective shell 101 through the air pump 201, reducing the temperature around the pressure sensor body 102, and thus the temperature of the pressure sensor body 102 can be reduced, avoiding the influence of the increase in the temperature of the pressure sensor body 102 on its operation. The housing of the above-mentioned air pump 201 and the cooling component 202 are made of radiation-resistant materials.

[0059] In summary, by setting the cooling component 202, the gas entering its inner side can be cooled. The low-temperature gas formed by cooling flows between the protective shell 101 and the pressure sensor body 102 under the action of the air pump 201, realizing the cooling treatment of the pressure sensor body 102 and avoiding the influence of the increase in the temperature of the pressure sensor body 102 on its accuracy; by setting the rectangular plate 202d, and the rectangular plate 202d is connected to the air outlet pipe 101a-13 of the protective shell 101. Therefore, the gas flowing out of the protective shell 101 gathers in the cavity of the rectangular plate 202d and then is output from the nozzle 202f on the side of the rectangular plate 202d, realizing the heat dissipation and cooling treatment of the hot end of the semiconductor refrigeration sheet 202c.

[0060] Embodiment 3

[0061] Refer to Figures 1 to 12 , which is the third embodiment of the present invention. This embodiment provides a cable aging degree detection device, which can protect the pressure sensor 102 from radiation through the design of the protection unit 100; and realize the temperature reduction treatment of the device through the design of the cooling component 202.

[0062] Specifically, the protection unit 100 includes a protective shell 101 and a pressure sensor 102 detachably arranged on the protective shell;

[0063] The control unit 200 includes an air pump 201 arranged outside the protective shell 101 and a cooling component 202 arranged on the air pump 201, wherein the protection unit is connected to the control unit;

[0064] The protection unit 100 is used to prevent radiation;

[0065] The control unit 200 is used to perform temperature reduction treatment.

[0066] Furthermore, it further includes a pipe body 300, and a branch pipe 301 is arranged on the outer side of the pipe body; an external thread 102a is arranged at the bottom of the pressure sensor 102, and the bottom of the pressure sensor 102 is inserted into the branch pipe 301.

[0067] Further, the protective shell 101 includes a first shell 101a, a second shell 101b disposed on the first shell 101a, a plurality of sets of hoop fasteners 101c sleeved outside the first shell 101a and the second shell 101b, and rubber plates 101d respectively disposed on the inner sides of the first shell 101a and the second shell 101b, and the rubber plates 101d are in fitting contact with the branch pipe 301.

[0068] Further, the protective shell 101 further includes clamping plates 101e, and clamping plates 101e are disposed at the bottoms of both the first shell 101a and the second shell 101b. The two sets of clamping plates 101e are spliced and connected and sleeved on the pipe body 300.

[0069] Further, the first shell 101a includes a side shell 101a-1 and a top plate 101a-2 fixedly disposed at the top of the side shell 101a-1, and the top plate 101a-2 is in sealed contact with the second shell 101b; both the side shell 101a-1 and the second shell 101b are provided as arc-shaped plates with a central angle of 180°.

[0070] Preferably, an arc-shaped groove 101a-11 is provided on the side shell 101a-1, a rubber column 101b-1 is provided on the side wall of the second shell 101b, and the rubber column 101b-1 is disposed inside the arc-shaped groove 101a-11; first arc-shaped holes 101a-12 and second arc-shaped holes 101b-2 are respectively provided on the adjacent edges of the side shell 101a-1 and the second shell 101b, and the end of the pressure sensor 102 is hermetically penetrated through the first arc-shaped hole 101a-12 and the second arc-shaped hole 101b-2.

[0071] Preferably, an air inlet pipe 101a-21 is fixedly disposed in a communicating manner on the top plate 101a-2, and an air outlet pipe 101a-13 is fixedly disposed in a communicating manner on the side wall of the side shell 101a-1; the air inlet pipe 101a-21 and the air outlet pipe 101a-13 are disposed far apart, and the air inlet pipe 101a-21 is in communicating connection with the output end of the air pump 201.

[0072] Preferably, the cooling assembly 202 includes a frame body 202a, air outlet holes 202b provided on the frame body 202a, and four sets of semiconductor refrigeration sheets 202c embedded on the four side walls of the frame body 202a.

[0073] Preferably, the cooling assembly 202 further includes a rectangular plate 202d sleeved at one end far from the air pump 201, and the inside of the rectangular plate 202d is provided with a cavity structure, a connecting pipe 202e is provided in a communicating manner on the side of the rectangular plate 202d, a plurality of sets of spray heads 202f are respectively provided in a communicating manner on the four sides of the rectangular plate 202d, and a connecting plate 202g is provided at the end corner of the rectangular plate 202d; the connecting pipe 202e is in communicating connection with the air outlet pipe 101a-13.

[0074] Preferably, a cover body 202h is further provided on the side of the rectangular plate 202d away from the air pump 202. The cover body 202h is arranged in a frustum structure, and an input pipe 202i is communicatively arranged at the end of the cover body 202h. The air pump 201 includes a fixing plate 201a and a sleeve 201b fixedly arranged on the fixing plate 201a. A stud 101c-1 is fixedly arranged on the side of the hoop 101c, and the stud 101c-1 penetrates through the sleeve 201b.

[0075] During use, the pressure measuring device for the nuclear power pipeline fluid first monitors the pressure change of the fluid in the pipeline in real time through the pressure sensor 102. The pressure sensor 102 is installed on the branch pipe 301 of the pipe body 300, and is tightly connected to the internal thread of the branch pipe 301 by using the external thread 102a to ensure the stability and accuracy of the measurement. In order to resist the influence of the high-radiation environment on the performance of the sensor, the protective shell 101 is made of anti-radiation material, and is fixed on the outside of the pressure sensor 102 by splicing the first shell 101a and the second shell 101b and then using the hoop 101c. At the same time, the rubber plate 101d is attached to the branch pipe 301 to achieve sealing and prevent radiation leakage. In terms of cooling, the air pump 201 in the control unit 200 sucks air from the outside. When the air passes through the frame 202a of the cooling assembly 202, it is cooled by the semiconductor refrigeration sheet 202c. The cooled gas enters the air pump 201 through the air outlet hole 202b, and is conveyed into the protective shell 101 through the air inlet pipe 101a-21 to reduce the temperature around the pressure sensor 102 and avoid the influence of high temperature on its measurement accuracy. The gas after absorbing heat is discharged from the protective shell 101 through the air outlet pipe 101a-13, enters the cavity of the rectangular plate 202d, and is sprayed onto the hot end of the semiconductor refrigeration sheet 202c through the nozzle 202f to realize heat dissipation and cooling of the hot end of the refrigeration sheet and ensure the efficient operation of the cooling assembly 202. Through this design, the device can effectively protect the pressure sensor 102 in a complex environment of high radiation and high temperature, and ensure its stable and accurate measurement of the fluid pressure.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A pressure measuring device for the fluid in a nuclear power pipeline, characterized in that, Comprising: A protection unit (100), including a protective shell (101) and a pressure sensor (102) detachably arranged on the protective shell; A control unit (200), including an air pump (201) arranged outside the protective shell (101) and a cooling component (202) arranged on the air pump (201), wherein the protection unit (100) is connected to the control unit (200); The protection unit (100) is used to prevent being affected by radiation; The control unit (200) is used to perform a cooling process.

2. The pressure measuring device for the fluid of a nuclear power pipeline according to claim 1, wherein, It further includes a pipe body (300), and a branch pipe (301) is arranged on the outer side of the pipe body; an external thread (102a) is arranged at the bottom of the pressure sensor (102), and the bottom of the pressure sensor (102) is inserted into the branch pipe (301).

3. The pressure measuring device for nuclear power pipeline fluid according to claim 2, characterized in that, The protective shell (101) includes a first shell (101a), a second shell (101b) arranged on the first shell (101a), several groups of hoop fasteners (101c) sleeved on the outer sides of the first shell (101a) and the second shell (101b), and rubber plates (101d) respectively arranged on the inner sides of the first shell (101a) and the second shell (101b), and the rubber plate (101d) is in close contact with the branch pipe (301).

4. The pressure measuring device for nuclear power pipeline fluid according to claim 3, characterized in that, The protective shell (101) further includes a clamping plate (101e), and the clamping plate (101e) is arranged at the bottom of both the first shell (101a) and the second shell (101b). The two clamping plates (101e) are spliced and connected and sleeved on the pipe body (300).

5. The pressure measuring device for nuclear power pipeline fluid according to claim 4, characterized in that, The first shell (101a) includes a side shell (101a-1) and a top plate (101a-2) fixedly arranged at the top of the side shell (101a-1), and the top plate (101a-2) is in sealed contact with the second shell (101b); both the side shell (101a-1) and the second shell (101b) are arranged as arc-shaped plates with a central angle of 180°.

6. The pressure measuring device for nuclear power pipeline fluid according to claim 5, wherein An arc-shaped groove (101a-11) is arranged on the side shell (101a-1), a rubber column (101b-1) is arranged on the side wall of the second shell (101b), and the rubber column (101b-1) is arranged inside the arc-shaped groove (101a-11); a first arc-shaped hole (101a-12) and a second arc-shaped hole (101b-2) are respectively arranged on the adjacent edges of the side shell (101a-1) and the second shell (101b), and the end of the pressure sensor (102) is hermetically penetrated through the first arc-shaped hole (101a-12) and the second arc-shaped hole (101b-2).

7. The pressure measuring device for nuclear power pipeline fluid according to claim 6, wherein, The top plate (101a-2) is communicated and fixedly provided with an air inlet pipe (101a-21), and the side wall of the side shell (101a-1) is communicated and fixedly provided with an air outlet pipe (101a-13); the air inlet pipe (101a-21) and the air outlet pipe (101a-13) are arranged far away from each other, and the air inlet pipe (101a-21) is communicated and connected with the output end of the air pump (201).

8. The pressure measuring device for nuclear power pipeline fluid according to claim 7, characterized in that The cooling component (202) includes a frame body (202a), an air outlet hole (202b) arranged on the frame body (202a), and four groups of semiconductor refrigeration sheets (202c) embedded on four side walls of the frame body (202a).

9. The pressure measuring device for the fluid of a nuclear power pipeline according to claim 8, characterized in that, The cooling component (202) further includes a rectangular plate (202d) sleeved at one end far away from the air pump (201), and the inside of the rectangular plate (202d) is of a cavity structure, a connecting pipe (202e) is communicated on the side of the rectangular plate (202d), a plurality of groups of nozzles (202f) are respectively communicated on four sides of the rectangular plate (202d), and a connecting plate (202g) is arranged at the end corner of the rectangular plate (202d); the connecting pipe (202e) is communicated and connected with the air outlet pipe (101a-13).

10. A pressure measuring device for nuclear power pipeline fluid, characterized in that, A cover body (202h) is further arranged on one side of the rectangular plate (202d) far away from the air pump (201), the cover body (202h) is of a frustum structure, and an input pipe (202i) is communicated at the end of the cover body (202h); the air pump (201) includes a fixing plate (201a) and a sleeve (201b) fixedly arranged on the fixing plate (201a); a stud (101c-1) is fixedly arranged on the side of the hoop (101c), and the stud (101c-1) penetrates through the sleeve (201b).

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