Direct-current non-thrust sleeve compensator

Abstract

The utility model relates to the technical field of sleeve compensators, and discloses a direct-current non-thrust sleeve compensator which comprises an inner pipe, a sleeve is installed on the surface of the inner pipe in a sliding mode, a communicating pipe is fixedly installed at one end of the sleeve, and a temperature sensor is fixedly installed on the inner side wall of the communicating pipe. According to the direct-current non-thrust sleeve compensator, the temperature sensor and the pressure sensor are arranged in the communicating pipe, the high-temperature alarm and the high-pressure alarm are arranged on the surface of the communicating pipe, and when the temperature of a medium in the communicating pipe exceeds the use range, the high-temperature alarm gives an alarm; when the pressure of the medium in the communicating pipe exceeds the application range, the high-pressure alarm gives an alarm to remind workers to pay attention, the medium state is conveniently adjusted, and the problems that a novel sealing material flexible graphite ring has requirements for the working environment, and the service life of the sleeve compensator is shortened due to the fact that the pressure exceeds the application range are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeve compensators, in particular to a DC thrust-free sleeve compensator. Background Art

[0002] The sleeve compensator is a compensation device for hot fluid pipelines, also known as tubular expansion joints or pipeline expansion joints. It is mainly used to absorb and compensate the axial thermal expansion displacement that occurs after the straight pipeline is installed. It can be installed in any pipeline that transports non-corrosive unidirectional or multi-directional fluids. The sleeve compensator is mainly composed of a sleeve (core tube), a shell and sealing materials. It has the characteristics of small size and large compensation capacity. It is suitable for hot water, steam, grease and other media.

[0003] The DC thrustless sleeve compensator is a special sleeve compensator, which is characterized by the adoption of the Pascal theory in fluid mechanics in the design. Through the ingenious structural design, the thrust on the fixed bracket is reduced or eliminated, thereby achieving the effect of a load-reducing bracket. The working seal chamber and the balance seal chamber use a new type of sealing material, flexible graphite ring, which has the characteristics of low friction coefficient, no aging, good effect, and easy maintenance, ensuring the sealing performance and service life of the compensator.

[0004] Common DC thrustless sleeve compensators use a new type of sealing material, flexible graphite rings, to maintain a good seal. The flexible graphite rings have the characteristics of low friction coefficient, no aging, good effect, and easy maintenance, thereby ensuring the sealing performance and service life of the compensator. However, such sealing materials have requirements for the working environment. If they exceed the applicable scope, the service life of the sleeve compensator will be reduced. In view of this, the present application proposes a DC thrustless sleeve compensator. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a DC thrust-free sleeve compensator, which has the advantages of real-time monitoring of the working environment and increasing the service life of the sleeve compensator. It solves the problem that the new sealing material flexible graphite ring has requirements on the working environment and exceeding the applicable scope will lead to a reduction in the service life of the sleeve compensator.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a DC thrustless sleeve compensator, comprising an inner tube, a sleeve is slidably installed on the surface of the inner tube, a connecting tube is fixedly installed on one end of the sleeve, a temperature sensor is fixedly installed on the inner wall of the connecting tube, a high temperature alarm is fixedly installed on the surface of the connecting tube, a pressure sensor is fixedly installed on the inner wall of the connecting tube, and a high pressure alarm is fixedly installed on the surface of the connecting tube.

[0007] Furthermore, a connector is fixedly mounted on one end of the inner tube located inside the sleeve, a sealing ring is sleeved on the surface of the connector, and an outer surface of the sealing ring contacts the inner wall of the sleeve.

[0008] Furthermore, the connector includes a positioning inner insert tube fixedly installed at one end of the inner tube, a sealing tube fixedly installed at one end of the positioning inner insert tube, two sealing grooves are opened on the surface of the sealing tube, and a sealing ring is sleeved inside the sealing groove.

[0009] Furthermore, the outer diameter of the positioning inner insert tube is equal to the inner diameter of the sleeve, and the outer diameter of the sealing tube is smaller than the inner diameter of the sleeve.

[0010] Furthermore, a fixed internal threaded tube is fixedly mounted on the surface of the sleeve away from one end of the connecting tube, and a mounting plate is sleeved on the surface of the inner tube.

[0011] Furthermore, a mounting bolt is passed through a side of the mounting plate away from the fixed internal threaded barrel, and the mounting bolt is threadedly connected to the fixed internal threaded barrel.

[0012] Furthermore, a spring is placed in the gap between the inner tube and the sleeve, one end of the spring is in contact with one side of the connector, and the other end of the spring is in contact with the mounting plate.

[0013] Furthermore, a first connecting flange is fixedly installed at one end of the inner tube away from the sleeve, and a second connecting flange is fixedly installed at one end of the connecting tube away from the sleeve.

[0014] Furthermore, an anti-slip rod is provided on one side of the first connecting flange, one end of which slides through the second connecting flange, and two limit nuts are threadedly installed on the surface of the anti-slip rod, and the two limit nuts are respectively located on both sides of the first connecting flange and the second connecting flange away from each other.

[0015] Compared with the prior art, the utility model provides a DC thrust-free sleeve compensator, which has the following beneficial effects:

[0016] The DC thrustless sleeve compensator is provided with a temperature sensor and a pressure sensor inside the connecting pipe, and a high-temperature alarm and a high-pressure alarm are provided on the surface of the connecting pipe. When the temperature of the internal medium of the connecting pipe exceeds the use range, the high-temperature alarm sounds an alarm, and when the pressure of the internal medium of the connecting pipe exceeds the use range, the high-pressure alarm sounds an alarm, prompting the staff to pay attention and facilitating the adjustment of the medium state. This solves the problem that the new sealing material flexible graphite ring has requirements on the working environment and the service life of the sleeve compensator will be reduced if it exceeds the applicable range. BRIEF DESCRIPTION OF THE DRAWINGS

[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 front view of the structure of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the inner tube and the connector of the utility model.

[0020] In the figure: 1. inner tube; 2. sleeve; 3. connecting tube; 4. temperature sensor; 5. high temperature alarm; 6. pressure sensor; 7. high pressure alarm; 8. connector; 81. positioning inner tube; 82. sealing tube; 83. sealing groove; 9. sealing ring; 10. fixing inner threaded tube; 11. mounting plate; 12. mounting bolt; 13. spring; 14. first connecting flange; 15. second connecting flange; 16. anti-dropping pull rod; 17. limiting nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 A DC thrustless sleeve compensator comprises an inner tube 1, a sleeve 2 is slidably mounted on the surface of the inner tube 1, a connecting tube 3 is fixedly mounted at one end of the sleeve 2, a temperature sensor 4 is fixedly mounted on the inner wall of the connecting tube 3, a high temperature alarm 5 is fixedly mounted on the surface of the connecting tube 3, a pressure sensor 6 is fixedly mounted on the inner wall of the connecting tube 3, and a high pressure alarm 7 is fixedly mounted on the surface of the connecting tube 3.

[0023] When the DC medium flows through the inner tube 1, the sleeve 2 and the connecting tube 3, the temperature sensor 4 and the pressure sensor 6 detect the temperature and pressure of the medium. When the temperature and pressure of the medium exceed the applicable range, the high temperature alarm 5 and the pressure sensor 6 are activated, prompting the staff to adjust the medium state and increase the service life of the DC thrustless sleeve compensator.

[0024] At the same time, a connector 8 is fixedly installed at one end of the inner tube 1 located inside the sleeve 2 , and a sealing ring 9 is sleeved on the surface of the connector 8 , and the outer surface of the sealing ring 9 contacts the inner wall of the sleeve 2 .

[0025] Among them, the connecting head 8 includes a positioning inner tube 81 fixedly installed at one end of the inner tube 1, and a sealing tube 82 is fixedly installed at one end of the positioning inner tube 81. Two sealing grooves 83 are opened on the surface of the sealing tube 82, and the sealing ring 9 is sleeved inside the sealing groove 83.

[0026] Secondly, the outer diameter of the positioning inner insert 81 is equal to the inner diameter of the sleeve 2, and the outer diameter of the sealing tube 82 is smaller than the inner diameter of the sleeve 2. During installation, the connector 8 at the end of the inner tube 1 is inserted into one end of the sleeve 2, and the positioning inner insert 81 contacts the inner wall of the sleeve 2, which facilitates positioning, so that the inner tube 1 and the sleeve 2 are on the same axis.

[0027] At the same time, a fixed internal threaded tube 10 is fixedly mounted on the surface of the sleeve 2 away from the connecting tube 3 , and a mounting plate 11 is sleeved on the surface of the inner tube 1 .

[0028] A mounting bolt 12 is provided on one side of the mounting plate 11 away from the fixed internal threaded barrel 10 , and the mounting bolt 12 is threadedly connected to the fixed internal threaded barrel 10 .

[0029] Secondly, a spring 13 is placed in the gap between the inner tube 1 and the sleeve 2, one end of the spring 13 contacts one side of the connector 8, and the other end of the spring 13 contacts the mounting plate 11. When the medium pressure is high, the spring 13 has a good compensation effect on the inner tube 1 and the sleeve 2, increasing the safety and service life of the DC thrustless sleeve compensator.

[0030] At the same time, a first connecting flange 14 is fixedly installed on one end of the inner tube 1 away from the sleeve 2 , and a second connecting flange 15 is fixedly installed on one end of the connecting tube 3 away from the sleeve 2 .

[0031] Among them, an anti-slip rod 16 is passed through one side of the first connecting flange 14, and one end of the anti-slip rod 16 slides through the second connecting flange 15. Two limiting nuts 17 are threadedly installed on the surface of the anti-slip rod 16, and the two limiting nuts 17 are respectively located on both sides of the first connecting flange 14 and the second connecting flange 15 away from each other.

[0032] When this embodiment is in use, the DC thrustless sleeve compensator is installed between the pipelines through the first connecting flange 14 and the second connecting flange 15. When the pipeline undergoes axial thermal expansion displacement, the inner pipe 1 and the sleeve 2 are expanded and contracted to maintain the connection between the pipelines. When the temperature and pressure of the medium inside the pipeline exceed the applicable range, the high temperature alarm 5 and the pressure sensor 6 are activated to prompt the staff to adjust the medium status.

[0033] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC thrustless sleeve compensator, comprising an inner tube (1), characterized in that: A sleeve (2) is slidably mounted on the surface of the inner tube (1); a connecting tube (3) is fixedly mounted on one end of the sleeve (2); a temperature sensor (4) is fixedly mounted on the inner wall of the connecting tube (3); a high temperature alarm (5) is fixedly mounted on the surface of the connecting tube (3); a pressure sensor (6) is fixedly mounted on the inner wall of the connecting tube (3); and a high pressure alarm (7) is fixedly mounted on the surface of the connecting tube (3).

2. A DC thrustless sleeve compensator according to claim 1, characterized in that: A connector (8) is fixedly mounted on one end of the inner tube (1) located inside the sleeve (2), a sealing ring (9) is sleeved on the surface of the connector (8), and the outer surface of the sealing ring (9) is in contact with the inner wall of the sleeve (2).

3. A DC thrustless sleeve compensator according to claim 2, characterized in that: The connector (8) comprises a positioning inner insert tube (81) fixedly mounted on one end of the inner tube (1); a sealing tube (82) is fixedly mounted on one end of the positioning inner insert tube (81); two sealing grooves (83) are formed on the surface of the sealing tube (82); and a sealing ring (9) is sleeved inside the sealing groove (83).

4. A DC thrustless sleeve compensator according to claim 3, characterized in that: The outer diameter of the positioning inner insert tube (81) is equal to the inner diameter of the sleeve (2), and the outer diameter of the sealing tube (82) is smaller than the inner diameter of the sleeve (2).

5. A DC thrustless sleeve compensator according to claim 4, characterized in that: A fixed internal threaded tube (10) is fixedly mounted on the surface of the sleeve (2) at one end away from the connecting tube (3), and a mounting plate (11) is sleeved on the surface of the inner tube (1).

6. A DC thrustless sleeve compensator according to claim 5, characterized in that: A mounting bolt (12) is provided on a side of the mounting plate (11) away from the fixed internal threaded barrel (10), and the mounting bolt (12) is threadedly connected to the fixed internal threaded barrel (10).

7. A DC thrustless sleeve compensator according to claim 6, characterized in that: A spring (13) is placed in the gap between the inner tube (1) and the sleeve (2), one end of the spring (13) contacts one side of the connector (8), and the other end of the spring (13) contacts the mounting plate (11).

8. The DC thrustless sleeve compensator according to claim 1, characterized in that: A first connecting flange (14) is fixedly mounted on one end of the inner tube (1) away from the sleeve (2), and a second connecting flange (15) is fixedly mounted on one end of the connecting tube (3) away from the sleeve (2).

9. A DC thrustless sleeve compensator according to claim 8, characterized in that: An anti-slip pull rod (16) is provided on one side of the first connecting flange (14), one end of the anti-slip pull rod (16) slides through the second connecting flange (15), and two limit nuts (17) are threadedly installed on the surface of the anti-slip pull rod (16), and the two limit nuts (17) are respectively located on two sides of the first connecting flange (14) and the second connecting flange (15) that are away from each other.

Images