A high temperature resistant pressure sensor

Abstract

The utility model provides a kind of high-temperature-resistant pressure sensor, belong to high-temperature-resistant pressure sensor technical field, including signal transmission connector;Detection shell is equipped in the lateral wall of signal transmission connector;Mounting head is equipped in the side end of signal transmission connector on the detection shell;Pressure inlet is opened in the lateral wall central position of mounting head;High-temperature-resistant heat dissipation component is equipped on the detection shell;The high-temperature-resistant heat dissipation component includes: flow guide disc one, flow guide disc two, flow guide disc three and flow guide disc four are sequentially equipped on the detection shell from front to back;The utility model can form the structure of internal heat absorption and external heat dissipation by high-temperature-resistant heat dissipation component, the heat of fluid is effectively conducted to outside and radiated, and the flow path of fluid is lengthened, better heat dissipation can be realized, and multi-stage cooling is realized, ensure that fluid and internal detection component contact are not in high-temperature state, effectively protect internal detection component.

Description

Technical Field

[0001] This utility model belongs to the technical field of high temperature pressure sensor, and specifically relates to a high temperature pressure sensor. Background Technology

[0002] High-temperature pressure sensors are pressure measurement devices specifically designed for high-temperature environments. They can operate stably under extreme temperature conditions and provide accurate pressure monitoring data for fields such as industrial automation, aerospace, and energy.

[0003] High-temperature pressure sensors detect high-temperature gases or liquids during use. Since most high-temperature pressure sensors dissipate heat through heat sinks on their housings, the heat dissipation effect is poor, making it difficult to effectively reduce the contact temperature between the internal detection components and the detected fluid, which can easily lead to damage. In addition, the impact force during the detection of some high-pressure fluids can easily damage the internal detection components of the high-temperature pressure sensor.

[0004] Therefore, a high-temperature resistant pressure sensor is proposed. Summary of the Invention

[0005] This invention provides a high-temperature resistant pressure sensor, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a high-temperature resistant pressure sensor, including a signal transmission connector; a detection housing disposed on one side wall of the signal transmission connector; a mounting head disposed on the detection housing at the side end away from the signal transmission connector; a pressure inlet opened at the center of one side wall of the mounting head; and a high-temperature resistant heat dissipation assembly disposed on the detection housing. The high-temperature resistant heat dissipation assembly includes: a first guide plate, a second guide plate, a third guide plate, and a fourth guide plate disposed sequentially from front to back on the detection housing; flow diversion holes respectively opened on the outer side walls of the first and second guide plates at positions close to the inside of the detection housing; an inner heat-conducting plate disposed on one side wall of the first and second guide plates at positions close to the inside of the detection housing; and an outer heat exchange plate disposed on one side wall of the first and second guide plates at positions close to the outside of the detection housing; a first guide hole opened on the outer side wall of the third guide plate at a position close to the inside of the detection housing; and a second guide hole opened at the center of the outer side wall of the fourth guide plate.

[0007] Furthermore, the mounting head has an inlet cavity for the buffer damping assembly inside, and a piston cavity and an inlet hole are provided on the side of the mounting head near the inlet cavity. The piston cavity is located on the side of the inlet hole, and a spring is provided on the inner wall of one side of the piston cavity. A piston is provided at one end of the spring.

[0008] Furthermore, the first, second, third and fourth guide plates are all composed of an inner plate and an outer plate;

[0009] By adopting the above technical solution, two parts, inner and outer, can be formed. The inner plate absorbs the heat of the fluid, while the outer plate dissipates the heat of the fluid, thereby cooling the fluid and ensuring that the fluid is not in a high-temperature state when it comes into contact with the internal detection components, effectively protecting the internal detection components.

[0010] Furthermore, the flow-dividing holes on the first and second flow-dividing disks are misaligned, and the first and second flow-dividing holes are misaligned.

[0011] By adopting the above technical solution, the flow path of the fluid between the first and second guide plates can be extended through the staggered flow dividers, thereby improving fluid heat dissipation and effectively reducing the fluid temperature.

[0012] Furthermore, the piston performs piston-like motion inside the piston chamber, and the piston is initially located inside the piston chamber.

[0013] By adopting the above technical solution, the piston movement ensures the stability of the piston's movement inside the piston chamber, and the piston movement plays a buffering and damping role, thereby reducing the instantaneous pressure of fluid entering the detection housing.

[0014] Furthermore, both the pressure inlet and the inlet hole are connected to the inlet cavity;

[0015] By adopting the above technical solution, the fluid can pass through the pressure inlet and enter the inlet cavity, and then enter the inlet hole from the inlet cavity.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model can form a structure of internal heat absorption and external heat dissipation through high temperature heat dissipation components, which facilitates the effective conduction of the fluid's heat to the outside and heat dissipation, and extends the fluid flow path, which can achieve better heat dissipation and multi-stage cooling, ensuring that the fluid is not in a high temperature state when in contact with the internal detection components, and effectively protecting the internal detection components.

[0018] 2. This utility model can absorb part of the pressure when the fluid enters through the buffer damping component, thereby playing a role in buffering resistance, reducing the instantaneous pressure of the fluid entering the detection housing, and better protecting the high-temperature pressure sensor.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a three-dimensional sectional view of an embodiment of the present utility model;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the detection shell according to an embodiment of the present utility model;

[0024] Figure 4 This is a three-dimensional sectional view of the mounting head according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the flow guide plate structure according to an embodiment of the present utility model;

[0026] Reference numerals: 1. Signal transmission connector; 2. Detection housing; 3. Mounting head; 4. Pressure port; 5. High-temperature heat dissipation component; 51. Flow guide plate one; 52. Flow guide plate two; 53. Flow guide plate three; 54. Flow guide plate four; 55. Flow divider hole; 56. Inner heat conduction plate; 57. Outer heat exchange plate; 58. Flow guide hole one; 59. Flow guide hole two; 6. Buffer damping component; 61. Inlet cavity; 62. Piston cavity; 63. Inlet hole; 64. Spring; 65. Piston. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] Reference Figure 1-3 and Figure 5This utility model embodiment proposes a high-temperature resistant pressure sensor, including a signal transmission connector 1. A detection shell 2 is provided on one side wall of the signal transmission connector 1. The detection shell 2 is provided with a high-temperature resistant heat dissipation assembly 5, which includes a first guide plate 51, a second guide plate 52, a third guide plate 53, and a fourth guide plate 54. Each of the guide plates 51, 52, 53, and 54 consists of an inner plate and an outer plate, forming two parts. The inner plate absorbs the heat of the fluid, and the outer plate dissipates the heat of the fluid, thereby cooling the fluid and preventing it from being in a high-temperature state when in contact with the internal detection component, effectively protecting the internal detection component. The guide plates 51, 52, 53, and 54 are arranged sequentially, and all of them are made of high thermal conductivity materials. The outer wall of the first and second guide plates 51 has... Several diversion holes 55 are provided inside the detection housing 2, and these holes are distributed in a "plum blossom" pattern. An inner heat-conducting plate 56 is provided on one side of the outer wall of both the first and second guide plates 51 near the inside of the detection housing 2. An outer heat exchange plate 57 is provided on one side of the outer wall of both the first and second guide plates 51 near the outside of the detection housing 2. Both the inner heat-conducting plate 56 and the outer heat exchange plate 57 are made of high thermal conductivity materials. The outer wall of the third guide plate 53... A flow guide hole 58 is provided at the inner position of the upper detection housing 2, and a flow guide hole 59 is provided at the center of the outer side wall of the flow guide plate 54. The flow diversion holes 55 on the flow guide plate 51 and the flow guide plate 52 are misaligned. The flow guide hole 58 and the flow guide hole 59 are misaligned. Through the misaligned flow diversion hole 55, the flow path of the fluid between the flow guide plate 51 and the flow guide plate 52 can be extended, thereby better heat dissipation of the fluid and effectively reducing the temperature of the fluid.

[0030] Specifically, when the fluid is pressure tested, after the fluid enters the detection housing 2, the fluid first contacts the first guide plate 51. Under the action of the flow distribution hole 55 on the first guide plate 51, the fluid enters the space between the first guide plate 51 and the second guide plate 52. When the fluid flows in this space, the fluid fully contacts the inner heat conduction plate 56. The inner heat conduction plate 56 exchanges heat with the fluid, absorbs its heat, and transfers it to the outer heat exchange plate 57. After the outer heat exchange plate 57 comes into contact with the air, the air carries away the heat, thereby achieving heat dissipation of the fluid inside the detection housing 2.

[0031] As the fluid continues to flow, under the action of the flow-dividing holes 55 on the second guide plate 52, the fluid enters the space between the second guide plate 52 and the third guide plate 53. When the fluid flows in this space, the inner heat-conducting plate 56 and the outer heat exchange plate 57 continue to conduct heat and dissipate heat for the fluid, further reducing the temperature of the fluid. Then, the fluid passes through multiple fourth guide plates 54, and the fourth guide plate 54 is used to cool the fluid again, realizing multi-stage cooling, ensuring that the fluid is not in a high-temperature state when it comes into contact with the internal detection components, and effectively protecting the internal detection components.

[0032] Example 2

[0033] Reference Figure 1 , Figure 2 , Figure 4 This utility model embodiment also proposes a high-temperature resistant pressure sensor, including a signal transmission connector 1. A detection housing 2 is provided on one side wall of the signal transmission connector 1. A mounting head 3 is provided on the side of the detection housing 2 away from the signal transmission connector 1. A pressure inlet 4 is provided at the center of one side wall of the mounting head 3. The pressure inlet 4 and the inlet hole 63 are both connected to the inlet cavity 61, allowing fluid to pass through the pressure inlet 4 and enter the inlet cavity 61, and then enter the inlet hole 63 from the inlet cavity 61. The inlet cavity 61 of the buffer damping assembly 6 is provided inside the mounting head 3, and the mounting head 3... Inside the chamber, near the inlet cavity 61, there is a piston cavity 62 and an inlet hole 63. The piston cavity 62 is located on one side of the inlet hole 63, and a spring 64 is provided on one side of the inner wall of the piston cavity 62. A piston 65 is provided at one end of the spring 64. The piston 65 performs piston-like movement inside the piston cavity 62. In the initial state, the piston 65 is located inside the piston cavity 62. The piston-like movement ensures the stability of the piston 65's movement inside the piston cavity 62 and plays a buffering and damping role, thereby reducing the instantaneous pressure of the fluid entering the detection housing 2.

[0034] Specifically, the mounting head 3 is first installed at the detection point. The fluid enters the inlet chamber 61 through the pressure inlet 4. Under the diversion of the inlet chamber 61, part of the fluid enters the detection housing 2 through the inlet hole 63, and part of the fluid enters the piston chamber 62. Under the action of fluid pressure, the fluid pushes the piston 65 to move inward to the piston chamber 62. The spring 64 is compressed by force. The deformation of the spring 64 absorbs part of the pressure when the fluid enters, which plays a role in buffering resistance and reducing the instantaneous pressure of the fluid entering the detection housing 2, thus better protecting the high-temperature pressure sensor.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant pressure sensor, characterized in that: Includes signal transmission connector (1); A detection housing (2) is provided on one side wall of the signal transmission connector (1); A mounting head (3) is provided on the side of the detection housing (2) away from the signal transmission connector (1); A pressure port (4) is opened at the center of one side wall of the mounting head (3); A high-temperature heat dissipation component (5) is provided on the detection housing (2); The high-temperature heat dissipation component (5) includes: The flow guide plate 1 (51), flow guide plate 2 (52), flow guide plate 3 (53) and flow guide plate 4 (54) are arranged sequentially from front to back on the detection housing (2); Diversion holes (55) are respectively opened on the outer side wall of the first guide plate (51) and the second guide plate (52) near the inside of the detection housing (2); An inner heat-conducting plate (56) is provided on one side wall of the first guide plate (51) and the second guide plate (52) near the inside of the detection housing (2); and An external heat exchange plate (57) is provided on one side wall of the first guide plate (51) and the second guide plate (52) near the outside of the detection housing (2); A flow guide hole (58) is opened on the outer wall of the flow guide plate (53) near the inside of the detection housing (2); The second guide hole (59) is located at the center of the outer side wall of the fourth guide plate (54).

2. The high-temperature pressure sensor according to claim 1, characterized in that: The mounting head (3) has an inlet cavity (61) in the buffer damping assembly (6) inside, and a piston cavity (62) and an inlet hole (63) are provided on the side of the mounting head (3) near the inlet cavity (61). The piston cavity (62) is located on the side of the inlet hole (63), and a spring (64) is provided on the inner wall of one side of the piston cavity (62). A piston (65) is provided at one end of the spring (64).

3. The high-temperature resistant pressure sensor according to claim 1, characterized in that: The first (51), second (52), third (53) and fourth (54) of the flow guide plate are all composed of an inner plate and an outer plate.

4. A high-temperature resistant pressure sensor according to claim 1, characterized in that: The flow divider holes (55) on the first flow guide plate (51) and the second flow guide plate (52) are misaligned, and the first flow guide hole (58) and the second flow guide hole (59) are misaligned.

5. A high-temperature resistant pressure sensor according to claim 2, characterized in that: The piston (65) moves in a piston-like motion inside the piston chamber (62), and the piston (65) is initially located inside the piston chamber (62).

6. A high-temperature resistant pressure sensor according to claim 2, characterized in that: The pressure inlet (4) and the inlet hole (63) are both connected to the inlet cavity (61).

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