Isolation sleeve with heat preservation function

Abstract

The utility model relates to the technical field of material pumping, in particular to an isolation sleeve with a heat preservation function, which comprises a sleeve, the sleeve is integrally formed by a first round pipe and a second round pipe, the outer diameter of the first round pipe is larger than that of the second round pipe, and the inner diameter of the first round pipe is consistent with that of the second round pipe. The first round pipe and the second round pipe are coaxially arranged, the interior of the pipe wall of the first round pipe is hollow, a first threaded hole and a second threaded hole are axially formed in the outer side of the first round pipe at equal intervals and communicate with the interior of the pipe wall of the first round pipe, and one end of an air inlet pipeline is in threaded connection with the interior of the first threaded hole; and one end of an exhaust pipeline is screwed in the second threaded hole, a check valve is arranged in the air inlet pipeline, the air inlet pipeline is used for pouring high-temperature steam into the pipe wall of the first circular pipe, the high-temperature steam enters the pipe wall of the first circular pipe and then conducts heat to the first circular pipe, and therefore the internal temperature of the sleeve is constant.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump material technology field especially relates to a spacer sleeve with heat preservation function. BACKGROUND

[0002] The spacer sleeve plays a vital role in the magnetic drive pump, mainly reflected in the following aspects: preventing leakage: the spacer sleeve, as a stationary sealing spacer between the inner rotor and the outer rotor, can ensure that the magnetic torque of the magnetic drive is transmitted to the impeller without contact, and prevent the leakage of high-temperature, high-pressure and even toxic and explosive medium inside the magnetic drive pump. Protect the inner layer: the outer layer of the spacer sleeve is made of continuous carbon fiber composite material, which can withstand high pressure environment and provide strength protection for the inner layer of fluoroplastic, preventing the spacer sleeve from being damaged by the pressure inside the pump body, thereby ensuring that the pump will not be damaged due to pressure during normal operation. Withstand pressure: the spacer sleeve needs to withstand a working pressure of 3 megapascals, which requires it to have high strength and high temperature resistance in material selection and design to ensure stability and safety in harsh working environment. In summary, the spacer sleeve is not only a key component for achieving leak-free operation in the magnetic drive pump, but also an important guarantee for protecting the internal structure of the pump and maintaining its long-term stable operation.

[0003] The above prior art scheme has the following defects: using pump cover heat preservation or coupling frame heat preservation, the cost is relatively high, and the heat preservation effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a spacer sleeve with heat preservation function to solve the problems existing in the prior art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A spacer sleeve with heat preservation function, comprising a sleeve, the sleeve is integrally formed by a first circular tube and a second circular tube, the outer diameter of the first circular tube is larger than that of the second circular tube, and the inner diameter of the first circular tube is consistent with that of the second circular tube, the first circular tube and the second circular tube are coaxially arranged, the tube wall of the first circular tube is hollow inside, first screw holes and second screw holes are arranged on the outer side of the first circular tube at equal intervals in the axial direction, the first screw holes and the second screw holes are both in communication with the inside of the tube wall of the first circular tube, one end of an air inlet pipeline is screwed into the first screw hole, one end of an air outlet pipeline is screwed into the second screw hole, a check valve is arranged in the air inlet pipeline, and the air inlet pipeline is used for injecting high-temperature steam into the inside of the tube wall of the first circular tube.

[0007] By adopting the technical scheme, the high-temperature steam enters the inside of the pipe wall of the first circular pipe and then conducts heat to the first circular pipe, and because the first circular pipe and the second circular pipe are integrally formed to form a sleeve, the heat is further conducted to the second circular pipe, because the first circular pipe and the second circular pipe are subjected to heat transfer for a long time, the internal temperature of the sleeve is constant, and the sleeve plays a role of heat preservation for the inside of the sleeve.

[0008] In a further embodiment, the end of the air inlet pipeline connected with the first threaded hole is provided with a sealing structure, the sealing structure comprises a locking nut, a first sealing ring and a second sealing ring, the outside of the end of the air inlet pipeline connected with the first threaded hole is provided with a threaded surface, the locking nut is screwed on the threaded surface, the first sealing ring is arranged between the locking nut and the outer wall of the first circular pipe, the end of the first sealing ring close to the outer wall of the first circular pipe is arranged as a conformal structure consistent with the curvature of the outer wall of the first circular pipe, and the second sealing ring is sleeved on the end of the air inlet pipeline located in the first threaded hole.

[0009] In a further embodiment, the inside of the pipe wall of the first circular pipe is provided with a closed protrusion, the protrusion is used for blocking the flow speed of the gas, so that the gas flows in a turbulent flow in the inside of the first circular pipe, and the heat in the gas is left on the first circular pipe as much as possible.

[0010] In a further embodiment, the periphery of the sleeve is provided with an acute angle rounding structure.

[0011] In a further embodiment, the exhaust pipeline is provided with a module consistent with the sealing structure at the second threaded connection.

[0012] In a further embodiment, the outside of the air inlet pipeline is covered with a heat preservation layer.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. By adopting the technical scheme, the high-temperature steam enters the inside of the pipe wall of the first circular pipe and then conducts heat to the first circular pipe, and because the first circular pipe and the second circular pipe are integrally formed to form a sleeve, the heat is further conducted to the second circular pipe, because the first circular pipe and the second circular pipe are subjected to heat transfer for a long time, the internal temperature of the sleeve is constant, and the sleeve plays a role of heat preservation for the inside of the sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2This is a schematic diagram illustrating the internal structure of the intake pipe, exhaust pipe, sealing structure, and the first circular pipe of this utility model.

[0017] In the diagram, 1 is the sleeve; 11 is the first round tube; 12 is the second round tube; 2 is the intake pipe; 3 is the exhaust pipe; 4 is the sealing structure; 41 is the locking nut; 42 is the first sealing ring; and 43 is the second sealing ring. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0020] Example 1:

[0021] like Figures 1-2As shown, an isolation sleeve with heat preservation function, including sleeve 1, sleeve 1 is integrally formed by first circular tube 11 and second circular tube 12, the outer diameter of first circular tube 11 is larger than the outer diameter of second circular tube 12, and the inner diameter of first circular tube 11 is consistent with the inner diameter of second circular tube 12, first circular tube 11 and second circular tube 12 are coaxially arranged, the inside of the wall of first circular tube 11 is hollow, the outer side of first circular tube 11 is axially and equally spaced to be provided with first threaded hole and second threaded hole, the first threaded hole and the second threaded hole are both communicated with the inside of the wall of first circular tube 11, one end of air inlet pipeline 2 is screwed in the first threaded hole, one end of exhaust pipeline 3 is screwed in the second threaded hole, a check valve is arranged in air inlet pipeline 2, air inlet pipeline 2 is used for injecting high-temperature steam into the inside of the wall of first circular tube 11, the end of air inlet pipeline 2 connected with the first threaded hole is provided with sealing structure 4, sealing structure 4 includes locking nut 41, first sealing ring 42 and second sealing ring 43, the outer side of the end of air inlet pipeline 2 connected with the first threaded hole is provided with a threaded surface, locking nut 41 is screwed on the threaded surface, first sealing ring 42 is arranged between locking nut 41 and the outer wall of first circular tube 11, the end of first sealing ring 42 close to the outer wall of first circular tube 11 is arranged as a conformal structure consistent with the curvature of the outer wall of first circular tube 11, second sealing ring 43 is sleeved on the end of air inlet pipeline 2 located in the inside of the first threaded hole, the inside of the wall of first circular tube 11 is provided with a closed protrusion, the circumference of sleeve 1 is provided with an acute angle rounding structure, the connection between exhaust pipeline 3 and the second threaded hole is provided with a module consistent with sealing structure 4, the outer side of air inlet pipeline 2 is covered with a heat preservation layer.

[0022] Specific implementation process: after high-temperature steam enters the inside of the wall of first circular tube, heat is conducted to first circular tube, and because first circular tube and second circular tube are integrally formed to form sleeve, heat is further conducted to second circular tube, because first circular tube and second circular tube are subjected to heat transfer for a long time, the internal temperature of sleeve is constant, which plays a role of heat preservation for the inside of sleeve, the isolation sleeve adopts heat preservation structure, eliminates the crystallization phenomenon caused by too low temperature when the material passes through the isolation sleeve, and ensures the normal operation of the whole pump.

[0023] In the embodiments disclosed in the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, detachable connection or integral connection. "Connection" can be direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the utility model can be understood according to specific circumstances.

[0024] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a modification without creative contribution can be made to the embodiment according to needs by a person skilled in the art after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

Claims

1. An insulating sleeve with heat preservation function, characterized in that: Includes a sleeve (1), which is integrally formed from a first round tube (11) and a second round tube (12). The outer diameter of the first round tube (11) is larger than the outer diameter of the second round tube (12), and the inner diameter of the first round tube (11) is the same as the inner diameter of the second round tube (12). The first round tube (11) and the second round tube (12) are coaxially arranged. The inner wall of the first round tube (11) is hollow. The outer side of the first round tube (11) is axially spaced with a first threaded hole and a second threaded hole. The first threaded hole and the second threaded hole are both connected to the inner wall of the first round tube (11). One end of the air inlet pipe (2) is screwed into the first threaded hole, and one end of the exhaust pipe (3) is screwed into the second threaded hole. A check valve is provided in the air inlet pipe (2). The air inlet pipe (2) is used to inject high-temperature steam into the inner wall of the first round tube (11).

2. The insulating sleeve with heat preservation function according to claim 1, characterized in that: The intake pipe (2) is provided with a sealing structure (4) at one end connected to the first threaded hole. The sealing structure (4) includes a locking nut (41), a first sealing ring (42), and a second sealing ring (43). The outer side of the end of the intake pipe (2) connected to the first threaded hole is provided with a threaded surface. The locking nut (41) is screwed onto the threaded surface. The first sealing ring (42) is provided between the locking nut (41) and the outer wall of the first round tube (11). The end of the first sealing ring (42) near the outer wall of the first round tube (11) is set as a conformal structure with the curvature of the outer wall of the first round tube (11). The second sealing ring (43) is sleeved on the end of the intake pipe (2) located inside the first threaded hole.

3. The insulating sleeve with heat preservation function according to claim 1, characterized in that: The inner wall of the first circular tube (11) is provided with a sealed protrusion.

4. The insulating sleeve with heat preservation function according to claim 1, characterized in that: The sleeve (1) has a rounded acute-angle structure around its periphery.

5. The insulating sleeve with heat preservation function according to claim 1, characterized in that: The exhaust pipe (3) is connected to the second threaded connection with a module that is consistent with the sealing structure (4).

6. The insulating sleeve with heat preservation function according to claim 1, characterized in that: The outer side of the air intake pipe (2) is covered with a heat insulation layer.

Images