Oil mixing pump with steam heat tracing function

Abstract

The utility model discloses an oil mixing pump with steam heat tracing, which belongs to the technical field of oil mixing pumps and comprises a pump casing used for placing the oil mixing pump with the steam heat tracing, a spiral shaft is mounted in the pump casing, a spiral sleeve is arranged on the side edge of the spiral shaft, pump covers used for sealing the oil mixing pump with the steam heat tracing are arranged on two sides of the pump casing, and the pump covers are arranged on the pump casing. A steam inlet is formed in the upper side of the pump cover, a steam outlet is formed in the end, away from the steam inlet, of the pump cover, the end, away from the pump cover, of the steam inlet is connected with an external steam heat tracing system, and a liquid inlet pipe section is installed on the lower side of the pump shell. The two rotary seals are arranged at the two ends of the liquid inlet pipe section, the two layers of seals are arranged in the rotary seals, and the spacer bush is arranged between the seals, so that when oil containing asphalt particle impurities is transported, particles are prevented from abrading threads, and the fault rate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil mixing pumps, in particular to an oil mixing pump with steam tracing. Background Art

[0002] Crude oil is a raw material in the industrial oil production of carbon black. Its main components are: a mixed liquid composed of coal tar, anthracene oil, asphalt, etc., also called carbon black oil. This liquid has the characteristics of increasing viscosity as the temperature decreases and decreasing viscosity as the temperature increases. Generally, it will have a better conveying effect when conveyed between 60-110℃, and the damping is relatively low. Therefore, carbon black oil is prone to adhesion due to the decrease in temperature during pump conveying, which increases the conveying resistance. The oil mixing pump is also a key equipment to ensure the uniformity of the oil in the carbon black raw material tank. However, the conventional types of oil mixing pumps such as screw pumps and centrifugal pumps currently used in the market have problems such as frequent wear and leakage during use, which is a headache for carbon black manufacturers.

[0003] The oil mixing pumps currently used are mostly centrifugal pumps, screw pumps, and gear pumps. Due to the high viscosity and asphalt particle impurities, the equipment failure rate is high. The oil mixing pumps are frequently repaired and replaced, causing serious leakage on site and a dirty and messy environment.

[0004] Therefore, in view of this situation, there is an urgent need to design and produce an oil mixing pump with steam heating to meet the needs of actual use. Utility Model Content

[0005] The utility model aims to provide an oil mixing pump with steam tracing to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixed oil pump with steam heating, comprising a pump casing for placing the mixed oil pump with steam heating, a spiral shaft is installed inside the pump casing, a spiral sleeve is provided on the side of the spiral shaft, pump covers for sealing the mixed oil pump with steam heating are provided on both sides of the pump casing, a steam inlet is opened on the upper side of the pump cover, a steam inlet is provided at one end of the pump cover away from the steam inlet, an external steam heating system is connected to the end of the steam inlet away from the pump cover, and a liquid inlet pipe section is installed on the lower side of the pump casing.

[0007] Preferably, a cylindrical sleeve is installed on the side of the pump cover, and a bearing seat is provided on the side of the sleeve away from the spiral shaft.

[0008] Preferably, a driven shaft is sleeved inside the bearing seat, and a left bearing gland used as a seal for a mixed oil pump with steam heating is installed on the side of the driven shaft.

[0009] Preferably, a liquid outlet pipe section for observing the pump casing is installed on the upper side of the pump casing, and tie rod bolts for fixing the two pump casings are installed on the side of the pump casing.

[0010] Preferably, a lifting ring is fixedly connected to the upper side of the pump housing, and a bracket is fixedly connected to the lower side of the pump housing.

[0011] Preferably, a bearing body is sleeved inside the pump housing, a driving shaft is installed on the side of the bearing body, and a right bearing gland is sleeved outside the driving shaft.

[0012] Preferably, a primary rotary seal is installed inside the pump housing, a sealing spacer is provided on a side of the primary rotary seal, and a secondary rotary seal is installed on a side of the sealing spacer.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The oil mixing pump with steam tracing is sealed by rotating the oil mixing pump and is arranged at both ends of the liquid inlet pipe section. The rotating seal is provided with two layers of seals, and a spacer is provided between the seals to prevent particles from wearing the threads when the oil containing asphalt particle impurities is transported, thereby reducing the failure rate.

[0015] A steam heating chamber is set between the pump cover and the bearing bracket at both ends of the pump. Steam enters the heating chamber from the upper end of the pump and exits the heating chamber from the lower end of the pump. Steam heating can be used to heat the viscous carbon black oil in the insulation mixing oil pump to ensure that the carbon black oil has good fluidity in and out of the pump. At the same time, it prevents the rotating seal from bonding with the shaft or sleeve, reduces the seal friction, and extends the service life of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure inside the pump casing of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the steam inlet of the utility model.

[0020] Description of reference numerals:

[0021] In the figure: 1. left bearing gland; 2. driven shaft; 3. bearing seat; 4. shaft sleeve; 5. pump cover; 6. pump casing; 7. bracket; 8. spiral sleeve; 9. spiral shaft; 10. external steam heating system; 11. liquid outlet pipe section; 12. tie rod bolt; 13. liquid inlet pipe section; 14. lifting ring; 15. primary rotary seal; 16. steam inlet; 17. sealing spacer; 18. secondary rotary seal; 19. steam inlet; 20. bearing body; 21. right bearing gland; 22. driving shaft. DETAILED DESCRIPTION

[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0023] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0024] The connection method can be bonding, welding, bolt connection and other existing methods, depending on actual needs.

[0025] In order to solve the problems of centrifugal pumps, screw pumps and gear pumps, which are mostly used, due to high viscosity and asphalt particle impurities, high equipment failure rate, frequent maintenance and replacement of mixing oil pumps, serious leakage on site, and dirty and messy environment, such as Figures 1 to 3 The oil mixing pump with steam tracing shown in the figure comprises a pump casing 6 for placing the oil mixing pump with steam tracing, a screw shaft 9 is installed inside the pump casing 6, the screw shaft 9 can ensure that the thread is not easy to wear during long-term operation, resulting in reduced efficiency due to failure, a screw sleeve 8 is arranged on the side of the screw shaft 9, and a pump cover 5 for sealing the oil mixing pump with steam tracing is arranged on both sides of the pump casing 6, a steam inlet 16 is opened on the upper side of the pump cover 5, and the external steam tracing system 10 transports the steam to the steam inlet 16, and then discharges it from the steam inlet 19 The viscous carbon black oil has good fluidity. A steam inlet port 19 is arranged at one end of the pump cover 5 away from the steam inlet port 16. An external steam heating system 10 is connected to the one end of the steam inlet port 16 away from the pump cover 5. A liquid inlet pipe section 13 is installed on the lower side of the pump casing 6. A cylindrical shaft sleeve 4 is installed on the side of the pump cover 5. A bearing seat 3 is arranged on the side of the shaft sleeve 4 away from the spiral shaft 9. A driven shaft 2 is sleeved inside the bearing seat 3. A left bearing gland 1 used as a seal for a mixed oil pump with steam heating is installed on the side of the driven shaft 2.

[0026] A liquid outlet pipe section 11 for observing the pump casing 6 is installed on the upper side of the pump casing 6, a tie rod bolt 12 for fixing the two pump casings 6 is installed on the side of the pump casing 6, a lifting ring 14 is fixedly connected to the upper side of the pump casing 6, a bracket 7 is fixedly connected to the lower side of the pump casing 6, a bearing body 20 is sleeved inside the pump casing 6, a driving shaft 22 is installed on the side of the bearing body 20, a right bearing gland 21 is sleeved outside the driving shaft 22, a first-stage rotary seal 15 is installed inside the pump casing 6, the first-stage rotary seal 15 and the secondary rotary seal 18 are separated by a sealing spacer 17 to prevent asphalt particle impurities in the viscous carbon black oil from affecting the transportation of oil products, a sealing spacer 17 is provided on the side of the first-stage rotary seal 15, and a secondary rotary seal 18 is installed on the side of the sealing spacer 17.

[0027] All structures and instruments are heat-resistant and waterproof.

[0028] How it works

[0029] During use, when the oil mixing pump with steam heating is used to transport viscous carbon black oil, the steam is transported to the steam inlet 16 through the external steam heating system 10, and then discharged from the steam inlet 19, so that the viscous carbon black oil has good fluidity. The viscous carbon black oil enters through the liquid inlet pipe section 13 and is transported to the liquid outlet pipe section 11 through the rotation of the spiral shaft 9, and the viscous carbon black oil is discharged. During the transportation process, the primary rotary seal 15 and the secondary rotary seal 18 are separated by the sealing spacer 17 to prevent asphalt particle impurities in the viscous carbon black oil from affecting the transportation of oil products.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A mixed oil pump with steam tracing, comprising a pump casing (6) for accommodating the mixed oil pump with steam tracing, characterized in that: A screw shaft (9) is installed inside the pump housing (6), and a screw sleeve (8) is arranged on the side of the screw shaft (9). Pump covers (5) for sealing a mixed oil pump with steam heating are arranged on both sides of the pump housing (6). A steam inlet (16) is opened on the upper side of the pump cover (5), and a steam inlet (19) is arranged at one end of the pump cover (5) away from the steam inlet (16). An external steam heating system (10) is connected to one end of the steam inlet (16) away from the pump cover (5), and a liquid inlet pipe section (13) is installed on the lower side of the pump housing (6).

2. The oil mixing pump with steam tracing according to claim 1, characterized in that: A cylindrical shaft sleeve (4) is installed on the side of the pump cover (5), and a bearing seat (3) is arranged on the side of the shaft sleeve (4) away from the screw shaft (9).

3. The oil mixing pump with steam tracing according to claim 2, characterized in that: The driven shaft (2) is sleeved inside the bearing seat (3), and a left bearing gland (1) used as a seal for a mixed oil pump with steam heating is installed on the side of the driven shaft (2).

4. The oil mixing pump with steam tracing according to claim 3, characterized in that: A liquid outlet pipe section (11) for observing the pump casing (6) is installed on the upper side of the pump casing (6), and a tie rod bolt (12) for fixing the two pump casings (6) is installed on the side of the pump casing (6).

5. The oil mixing pump with steam tracing according to claim 4, characterized in that: A lifting ring (14) is fixedly connected to the upper side of the pump housing (6), and a bracket (7) is fixedly connected to the lower side of the pump housing (6).

6. The oil mixing pump with steam tracing according to claim 5, characterized in that: The pump housing (6) is sleeved with a bearing body (20), a driving shaft (22) is mounted on the side of the bearing body (20), and a right bearing gland (21) is sleeved with the outside of the driving shaft (22).

7. The oil mixing pump with steam tracing according to claim 6, characterized in that: A primary rotary seal (15) is installed inside the pump housing (6), a sealing sleeve (17) is arranged on the side of the primary rotary seal (15), and a secondary rotary seal (18) is installed on the side of the sealing sleeve (17).

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