Heat preservation shell for petrochemical engineering process pump

Abstract

The utility model discloses a heat preservation shell for a petrochemical engineering process pump, which comprises a mounting seat and a petrochemical engineering process pump main body, and fixed heat preservation shells are fixedly mounted at the front end of the petrochemical engineering process pump main body in sequence from front to back; a first detachable heat preservation shell and a second detachable heat preservation shell are movably connected to the two sides of the outer end of the fixed heat preservation shell in an attached mode correspondingly, positioning holes are formed in the outer end of the first detachable heat preservation shell and the outer end of the second detachable heat preservation shell in a penetrating mode correspondingly, and positioning columns are movably connected to the inner walls of the positioning holes in an attached mode. Connecting pull rods are fixedly installed at the outer ends of the positioning columns, supporting springs are fixedly installed on the inner sides of the connecting pull rods, and supporting strips are fixedly installed at the inner side ends of the positioning columns. According to the petrochemical engineering process pump, stable heat preservation is conducted on the petrochemical engineering process pump body in the low-temperature environment, and meanwhile the first detachable heat preservation shell and the second detachable heat preservation shell can be detached conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical process pumps, and specifically relates to a heat preservation shell for a petrochemical process pump. Background Technique

[0002] Petrochemical process pumps refer to the general term for pumps that transport raw materials, semi-finished products, and products in petrochemical plants, generally centrifugal pumps or reciprocating pumps.

[0003] Its functions and characteristics include: strong corrosion resistance: Petrochemical process pumps usually adopt highly corrosion-resistant materials. High temperature and high pressure capacity: Such pumps often have excellent high temperature and high pressure transportation capabilities, can adapt to extreme working conditions in the petrochemical process, and ensure the safe transportation of fluids in high temperature and high pressure environments. Multi-purpose design: The design of petrochemical process pumps usually takes into account various types of liquids, including crude oil, petroleum products, chemicals, etc. High efficiency: Through optimized pump body structures and high-efficiency motors, such pumps have high-efficiency liquid transportation capabilities and reduce energy consumption. Safety performance: The design of petrochemical process pumps pays attention to safety, including leakage control, emergency stop devices, etc., to cope with potential dangerous situations and ensure the safe operation of the production process.

[0004] However, in actual use of the existing technology, in the petrochemical process, the pump is a key device for transporting fluids. However, in a low-temperature environment, the medium in the pump body may condense due to too low temperature, resulting in the pump being unable to work properly. Traditional heat preservation methods such as iron sheet heat preservation have problems such as difficult construction and non-reusability, and cannot meet the requirements of petrochemical process pumps. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat preservation shell for a petrochemical process pump, so as to solve the problem proposed in the above background technique that in the petrochemical process, the pump is a key device for transporting fluids. However, in a low-temperature environment, the medium in the pump body may condense due to too low temperature, resulting in the pump being unable to work properly. Traditional heat preservation methods such as iron sheet heat preservation have problems such as difficult construction and non-reusability, and cannot meet the requirements of petrochemical process pumps.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: including a mounting seat and a petrochemical process pump main body, a fixed heat preservation shell is fixedly installed on the front end of the petrochemical process pump main body in sequence from front to back;

[0007] On both sides of the outer end of the fixed heat preservation shell, a first detachable heat preservation shell and a second detachable heat preservation shell are respectively attached and movably connected. Positioning holes are respectively formed through the outer ends of the first detachable heat preservation shell and the second detachable heat preservation shell. A positioning column is attached and movably connected to the inner wall of the positioning hole. A connecting pull rod is fixedly installed at the outer end of the positioning column. A support spring is fixedly installed inside the connecting pull rod. A support strip is fixedly installed at the inner end of the positioning column. Docking grooves are respectively formed inside the upper and lower ends of the first detachable heat preservation shell. Docking bosses are respectively formed inside the upper and lower ends of the second detachable heat preservation shell. An avoidance groove is formed at the upper end of the first detachable heat preservation shell. An avoidance boss is formed at the upper end of the second detachable heat preservation shell;

[0008] An electric heater is fixedly installed on the outer side of the fixed heat preservation shell. An electric heating pipe is fixedly installed inside the fixed heat preservation shell. A temperature sensor and a temperature controller are respectively fixedly installed inside the lower end of the fixed heat preservation shell.

[0009] Preferably, the petrochemical process pump body is fixedly installed on the upper end of the installation seat. Heat preservation materials are respectively fixedly connected to the inner walls of the first detachable heat preservation shell, the second detachable heat preservation shell and the fixed heat preservation shell.

[0010] Preferably, the number of the positioning holes is several, and they are symmetrically distributed at the outer ends of the first detachable heat preservation shell and the second detachable heat preservation shell respectively.

[0011] Preferably, the ends of the support springs away from the connecting pull rods are respectively fixedly installed on the outer ends of the first detachable heat preservation shell and the second detachable heat preservation shell.

[0012] Preferably, the inner sides of the support strips are respectively attached and movably connected to the outer side edges of the fixed heat preservation shell.

[0013] Preferably, the outer end of the docking boss is press-fitted and connected to the inner wall of the docking groove, and the outer end of the avoidance boss is attached and movably connected to the inner wall of the avoidance groove.

[0014] Preferably, the electric heating pipe extends outwards to communicate with the electric heater, and the temperature sensor and the temperature controller are electrically connected to the electric heater respectively.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] When the temperature sensor monitors that the temperature at the front end of the petrochemical process pump body inside the fixed heat preservation shell is relatively low, the electric heater is controlled to be turned on through the temperature controller. When the electric heater is turned on, the internal environment of the fixed heat preservation shell is heated through the electric heating pipe, so that the temperature at the front end of the petrochemical process pump body is kept relatively stable, thereby realizing the function of stably heat-preserving the petrochemical process pump body in a low-temperature environment;

[0017] The utility model also simultaneously pulls the connecting pull rod outwards. When the connecting pull rod is pulled outwards, while stretching the supporting spring, it drives the positioning column to linearly move outwards along the inner wall of the positioning hole. When the positioning column linearly moves outwards, it drives the supporting strip to linearly move outwards. When the supporting strip linearly moves outwards, the support and fixation of the supporting strip on the first detachable heat preservation shell and the second detachable heat preservation shell can be released. When the support and fixation of the supporting strip on the first detachable heat preservation shell and the second detachable heat preservation shell are released, by pulling the first detachable heat preservation shell and the second detachable heat preservation shell outwards, when the first detachable heat preservation shell and the second detachable heat preservation shell are pulled outwards, the docking boss and the avoidance boss will respectively leave the inner walls of the docking groove and the avoidance groove. When the docking boss and the avoidance boss respectively leave the inner walls of the docking groove and the avoidance groove, the first detachable heat preservation shell and the second detachable heat preservation shell can be disassembled, thereby realizing stable heat preservation of the main body of the petrochemical process pump in a low-temperature environment, and facilitating the disassembly of the first detachable heat preservation shell and the second detachable heat preservation shell, so as to achieve the effect of facilitating the maintenance of the front end of the main body of the petrochemical process pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of a heat preservation shell for a petrochemical process pump of the utility model;

[0019] Figure 2 is a schematic diagram of a partial structure of a heat preservation shell for a petrochemical process pump of the utility model;

[0020] Figure 3 is a schematic cross-sectional view of the overall structure of a heat preservation shell for a petrochemical process pump of the utility model Figure 1 ;

[0021] Figure 4 is a schematic cross-sectional view of the overall structure of a heat preservation shell for a petrochemical process pump of the utility model Figure 2 ;

[0022] Figure 5 is a schematic cross-sectional view of a partial structure of a heat preservation shell for a petrochemical process pump of the utility model.

[0023] In the figure: 1, mounting seat; 2, main body of petrochemical process pump; 3, fixed heat preservation shell; 4, first detachable heat preservation shell; 5, second detachable heat preservation shell; 6, positioning hole; 7, positioning column; 8, connecting pull rod; 9, supporting spring; 10, supporting strip; 11, electric heating tube; 12, docking groove; 13, docking boss; 14, avoidance groove; 15, avoidance boss; 16, electric heater. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution for a heat preservation shell for a petrochemical process pump: including a mounting seat 1 and a petrochemical process pump main body 2, and the petrochemical process pump main body 2 is fixedly installed at the upper end of the mounting seat 1. A fixed heat preservation shell 3 is fixedly installed on the front end of the petrochemical process pump main body 2 in sequence from front to back;

[0026] On both sides of the outer end of the fixed heat preservation shell 3, a first detachable heat preservation shell 4 and a second detachable heat preservation shell 5 are respectively fitted and movably connected. Heat preservation materials are fixedly connected to the inner walls of the first detachable heat preservation shell 4, the second detachable heat preservation shell 5, and the fixed heat preservation shell 3. Positioning holes 6 are respectively formed through the outer ends of the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5, and the number of the positioning holes 6 is several, which are symmetrically distributed on the outer ends of the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5. A positioning column 7 is fitted and movably connected to the inner wall of the positioning hole 6. A connecting pull rod 8 is fixedly installed at the outer end of the positioning column 7. A support spring 9 is fixedly installed at the inner side of the connecting pull rod 8. The outer ends of the support springs 9 are respectively fixedly installed at the outer ends of the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5, so that the connecting pull rod 8 is elastically supported by the support spring 9. A support strip 10 is fixedly installed at the inner end of the positioning column 7, and the inner sides of the support strips 10 are respectively fitted and movably connected to the outer sides of the fixed heat preservation shell 3, so that the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 are supported and fixed by the support strip 10 in cooperation with the positioning column 7, the support spring 9, and the connecting pull rod 8. Docking grooves 12 are respectively formed in the inner sides of the upper and lower ends of the first detachable heat preservation shell 4, and docking bosses 13 are respectively formed in the inner sides of the upper and lower ends of the second detachable heat preservation shell 5. The outer ends of the docking bosses 13 are press-fitted and connected to the inner walls of the docking grooves 12, so that the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 are docked, limited, and sealed by the docking grooves 12 in cooperation with the docking bosses 13. An avoidance groove 14 is formed in the upper end of the first detachable heat preservation shell 4, and an avoidance boss 15 is formed in the upper end of the second detachable heat preservation shell 5. The outer end of the avoidance boss 15 is fitted and movably connected to the inner wall of the avoidance groove 14, so that the connecting pipe at the upper end of the petrochemical process pump main body 2 is avoided and sealed by the avoidance groove 14 in cooperation with the avoidance boss 15;

[0027] An electric heater 16 is fixedly installed on the outside of the fixed heat preservation shell 3, and an electric heating pipe 11 is fixedly installed on the inside of the fixed heat preservation shell 3. The electric heating pipe 11 extends outward and is communicated with the electric heater 16, so that the electric heater 16 heats the electric heating pipe 11. A temperature sensor and a temperature controller are fixedly installed on the inner side of the lower end of the fixed heat preservation shell 3, and the temperature sensor and the temperature controller are electrically connected to the electric heater 16 respectively, so that the temperature of the petrochemical process pump main body 2 inside the fixed heat preservation shell 3 is monitored and controlled through the temperature sensor and the temperature controller.

[0028] Working principle: During use, the front end of the petrochemical process pump main body 2 is thermally insulated and protected by the first detachable heat preservation shell 4, the second detachable heat preservation shell 5 and the fixed heat preservation shell 3. When the temperature sensor monitors that the temperature of the front end of the petrochemical process pump main body 2 inside the fixed heat preservation shell 3 is relatively low, the electric heater 16 is controlled to be turned on through the temperature controller. When the electric heater 16 is turned on, the inside of the fixed heat preservation shell 3 is heated through the electric heating pipe 11, so that the front end of the petrochemical process pump main body 2 maintains a relatively stable temperature, thus realizing the function of stably thermally insulating the petrochemical process pump main body 2 in a low-temperature environment.

[0029] At the same time, when it is necessary to disassemble the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5. By pulling the connecting pull rod 8 outward, when the connecting pull rod 8 is pulled outward, the supporting spring 9 will be stretched, and at the same time, the positioning column 7 will be driven to move linearly outward along the inner wall of the positioning hole 6. When the positioning column 7 moves linearly outward, the supporting strip 10 will be driven to move outward. When the supporting strip 10 moves outward, the supporting and fixing of the supporting strip 10 to the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 can be released. When the supporting and fixing of the supporting strip 10 to the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 are released, by pulling the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 outward, when the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 are pulled outward, the docking boss 13 and the avoidance boss 15 will respectively leave the inner walls of the docking groove 12 and the avoidance groove 14. When the docking boss 13 and the avoidance boss 15 respectively leave the inner walls of the docking groove 12 and the avoidance groove 14, the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5 can be disassembled, thus realizing the stable thermal insulation of the petrochemical process pump main body 2 in a low-temperature environment and facilitating the disassembly of the first detachable heat preservation shell 4 and the second detachable heat preservation shell 5, so as to achieve the function of facilitating the maintenance of the front end of the petrochemical process pump main body 2.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal insulation housing for a petrochemical process pump, characterized in that: It comprises a mounting seat (1) and a petrochemical process pump body (2), wherein a fixed heat-insulating shell (3) is fixedly mounted on the front end of the petrochemical process pump body (2) in sequence from front to back; The first and second detachable heat-insulating shells (4 and 5) are respectively fitted and movably connected to the two sides of the outer end of the fixed heat-insulating shell (3); the first and second detachable heat-insulating shells (4 and 5) are respectively provided with positioning holes (6) at the outer ends thereof; the inner walls of the positioning holes (6) are fitted and movably connected with positioning columns (7); the outer ends of the positioning columns (7) are fixedly provided with connecting rods (8); the inner sides of the connecting rods (8) are fixedly provided with supporting springs (9); the inner sides of the positioning columns (7) are fixedly provided with supporting strips (10); the inner sides of the upper and lower ends of the first detachable heat-insulating shell (4) are respectively provided with docking grooves (12); the inner sides of the upper and lower ends of the second detachable heat-insulating shell (5) are respectively provided with docking bosses (13); the upper end of the first detachable heat-insulating shell (4) is provided with an avoidance groove (14); the upper end of the second detachable heat-insulating shell (5) is provided with an avoidance boss (15); An electric heater (16) is fixedly installed on the outside of the fixed heat-insulating shell (3), an electric heating pipe (11) is fixedly installed on the inside of the fixed heat-insulating shell (3), and a temperature sensor and a temperature controller are respectively fixedly installed on the inside of the lower end of the fixed heat-insulating shell (3).

2. The thermal insulation housing for a petrochemical process pump according to claim 1, characterized in that: The petrochemical process pump body (2) is fixedly mounted on the upper end of the mounting seat (1), and the first detachable thermal insulation shell (4), the second detachable thermal insulation shell (5) and the inner walls of the fixed thermal insulation shell (3) are respectively fixedly connected with thermal insulation materials.

3. The thermal insulation housing for a petrochemical process pump according to claim 2, characterized in that: There are a plurality of positioning holes (6), which are symmetrically distributed at the outer ends of the first detachable heat-insulating shell (4) and the second detachable heat-insulating shell (5).

4. The thermal insulation housing for a petrochemical process pump according to claim 3, characterized in that: The end of the support spring (9) away from the connecting rod (8) is fixedly mounted on the outer ends of the first detachable heat-insulating shell (4) and the second detachable heat-insulating shell (5).

5. The thermal insulation housing for a petrochemical process pump according to claim 4, characterized in that: The inner sides of the support bars (10) are respectively fitted and movably connected to the outer sides of the fixed insulation shell (3).

6. The thermal insulation housing for a petrochemical process pump according to claim 5, characterized in that: The outer end of the docking boss (13) is fitted and interference-connected to the inner wall of the docking groove (12), and the outer end of the avoidance boss (15) is fitted and movably connected to the inner wall of the avoidance groove (14).

7. The thermal insulation housing for a petrochemical process pump according to claim 6, characterized in that: The electric heating tube (11) extends outwardly to communicate with the electric heater (16), and the temperature sensor and the temperature controller are electrically connected to the electric heater (16).

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