Pipeline structure for conveying corrosive class A liquid

Abstract

The utility model relates to a pipeline structure for conveying corrosive liquid A. The pipeline structure comprises a conveying inner pipe, the conveying inner pipe is sleeved with a protective outer pipe, a pipeline hanging bracket is arranged outside the protective outer pipe, and a pipe clamp assembly and a supporting rod are arranged in the protective outer pipe; sealing plugs are arranged at the two ends of the protective outer pipe, and an air inlet and an air outlet are formed in the two sealing plugs respectively; an observation window blocked by a transparent plate is formed in the pipe wall of the protective outer pipe; and a heat preservation layer structure is arranged on the periphery of the protective outer pipe. The utility model belongs to the technical field of corrosive liquid conveying pipelines, the pipe clamp assembly is arranged in the protective outer pipe to support the conveying inner pipe to enable the conveying inner pipe to be suspended, so that a heat dissipation cavity is formed between the conveying inner pipe and the protective outer pipe, air or nitrogen is input into the heat dissipation cavity, and heat emitted by the conveying inner pipe is discharged. And local overheating of the conveying inner pipe is avoided, and the heat dissipation effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corrosive liquid conveying pipeline, in particular to a pipeline structure for conveying corrosive Class A liquid. BACKGROUND

[0002] At present, there are few ways to convey small-flow Class A liquid that needs to be insulated on the market. Most of them use two transportation methods: 1) the conveying pipeline is directly in parallel contact with the cold pipe and then wrapped with an insulation package; 2) the hose is sleeved in a stainless steel pipe, and insulation measures are taken around it. However, these two modes still have shortcomings in terms of use demand, safety, energy saving and protection. Local overheating of the corrosive liquid conveying pipeline may still occur, especially due to the reaction of the corrosive liquid leakage with the external sleeve, which produces flammable gas and causes the local temperature of the pipeline to rise rapidly, which may cause combustion.

[0003] Therefore, it is necessary to provide a pipeline structure for conveying corrosive Class A liquid with good safety. CONTENT OF THE INVENTION

[0004] Therefore, it is necessary to provide a pipeline structure for conveying corrosive Class A liquid with good safety.

[0005] A pipeline structure for conveying corrosive Class A liquid, comprising a conveying inner pipe, an outer protective pipe sleeved outside the conveying inner pipe, a pipeline hanger provided outside the protective outer pipe, a pipe clamp assembly provided inside the protective outer pipe for supporting the conveying inner pipe, a support rod provided at the bottom of the pipe clamp assembly and detachably connected with the support seat of the pipeline hanger; two sealing plugs provided at the two ends of the protective outer pipe, an air inlet and an air outlet respectively provided on the two sealing plugs; an observation window provided on the pipe wall of the protective outer pipe, a leakage discharge pipe assembly, a temperature sensor and a flammable gas detector connected to the protective outer pipe; and an insulation layer structure provided around the protective outer pipe.

[0006] Further, the top of the support rod is fixedly connected with the pipe clamp assembly, the bottom of the support rod is provided with a screw rod portion, the screw rod portion is threadedly connected with a sleeve, and the bottom end of the sleeve is provided with a base connected with the support seat of the pipeline hanger.

[0007] Further, the screw rod portion is threadedly connected with a lock nut adapted to the top surface of the sleeve, and the base is provided with a bolt structure connected with the support seat.

[0008] Further, the pipe clamp assembly comprises a lower semicircular pipe clamp and an upper semicircular pipe clamp connected with the supporting rod, and both sides of the lower semicircular pipe clamp and the upper semicircular pipe clamp are provided with an ear plate; the lower semicircular pipe clamp and the upper semicircular pipe clamp are fixedly connected through the bolt structure on the ear plate.

[0009] Further, the transparent plate is a transparent PVC plate, the protective outer pipe is a PVC pipe, the conveying inner pipe is a stainless steel pipe structure, and the pipe clamp assembly is a stainless steel structure.

[0010] Further, the protective outer pipe is a structure formed by butt joint of multiple PVC pipes, the leakage pipe assembly comprises a tee joint for butt joint of two PVC pipes and an outer discharge pipe connected with a branch pipe interface located in the middle of the tee joint, the opening direction of the branch pipe interface of the tee joint is directed to the lower side of the tee joint, and the outer discharge pipe is provided with a valve at the connection position with the tee joint.

[0011] Further, the heat preservation layer structure comprises a heat preservation cotton layer wrapped on the protective outer pipe and an aluminum skin fixing layer structure wrapped on the heat preservation cotton layer, and the aluminum skin fixing layer structure and the heat preservation cotton layer are provided with an observation hole corresponding to the observation window.

[0012] Further, vertical supporting seats of the pipeline hanger are provided with hanger rods connected with external structures at both ends, and an upper beam is connected between the two hanger rods, and the upper beam is provided with an electrical wire slot.

[0013] Further, the bottom end of the hanger rod is provided through the supporting seat and is threadedly connected with a first upper limiting nut and a first lower limiting nut corresponding to the upper and lower surfaces of the supporting seat; the upper beam is arranged above the supporting seat, both ends of the upper beam are provided with through holes for the hanger rods to pass through, and the hanger rods are threadedly connected with a second upper limiting nut and a second lower limiting nut corresponding to the upper and lower surfaces of the upper beam.

[0014] Further, the supporting seat and the upper beam are angle steel structures.

[0015] Compared with the prior art, the pipeline structure for conveying corrosive Class A liquid has the following beneficial effects:

[0016] The pipeline structure for conveying corrosive Class A liquid of the utility model, by setting the pipe clamp assembly in the protective outer pipe to support the conveying inner pipe and arrange the conveying inner pipe in suspension, so that a heat dissipation cavity is formed between the conveying inner pipe and the protective outer pipe, air or nitrogen is input into the heat dissipation cavity, the gas flow in the protective outer pipe is ensured, the heat emitted by the conveying inner pipe is discharged in time, and the safety is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic view of the pipeline structure for conveying corrosive Class A liquid of the present application;

[0019] Figure 2 is an enlarged structural schematic view of the combination of the conveying inner tube, the protective outer tube, the pipe clamp support assembly and the heat preservation layer structure in the present application;

[0020] Figure 3 is an enlarged structural schematic view of the pipe clamp assembly in the present application;

[0021] Figure 4 is an enlarged structural schematic view of the protective outer tube and the leak drainage pipe assembly in the present application;

[0022] Figure 5 is an enlarged structural sectional view of the protective outer tube and the sealing plug in the present application;

[0023] Figure 6 is an enlarged structural schematic view of the sealing plug in the present application.

[0024] Mark explanation: 1, conveying inner tube; 2, protective outer tube; 3, pipeline hanger; 5, pipe clamp assembly; 6, support rod; 7, sealing plug; 8, air inlet; 9, air outlet; 10, transparent plate; 11, observation window; 12, leak drainage pipe assembly; 13, combustible gas detector; 14, heat preservation layer structure; 15, sleeve; 16, base; 17, lock nut; 18, tee joint; 19, outer drainage pipe; 20, valve; 21, heat insulation cotton layer; 22, aluminum skin fixing layer structure; 23, temperature sensor; 24, chamfer structure; 31, support seat; 32, hanger rod; 33, upper beam; 34, electrical wire slot. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0026] The embodiments are described below according to the overall structure of the utility model.

[0027] Referring to Figures 1-6 As shown in the figure, the embodiment provides a pipeline structure for conveying corrosive Class A liquid, which comprises a conveying inner pipe 1, the outer part of the conveying inner pipe 1 is sleeved with a protective outer pipe 2, the outer part of the protective outer pipe 2 is provided with a pipeline hanger 3, the protective outer pipe 2 is internally provided with a pipe clamp assembly 5 for supporting the conveying inner pipe 1 to make it suspended, the pipe clamp assembly 5 is used for clamping the pipe clamp assembly 5 of the conveying inner pipe 1, the bottom of the pipe clamp assembly 5 is provided with a support rod 6 which can be detachably connected to the support seat 31 of the pipeline hanger 3 by passing downward through the protective outer pipe 2, after the support rod 6 passes through the pipe wall of the protective outer pipe 2, it is sealed and fixed by hot melt glue; the two ends of the protective outer pipe 2 are provided with sealing plugs 7 through which the conveying inner pipe 1 passes, the two sealing plugs 7 are respectively provided with air inlets 8 and air outlets 9, the protective outer pipe 2 is a PVC pipe, the sealing plugs 7 are rubber structures, the sealing plugs 7 are pasted on the inner wall of the protective outer pipe 2 by glue; after the conveying inner pipe 1 passes through the sealing plugs 7, it is fixed by pasting and sealing by hot melt glue; the pipe wall of the protective outer pipe 2 is provided with an observation window 11, the protective outer pipe 2 is connected with a leakage discharge pipe assembly 12, a temperature sensor 23 and a combustible gas detector 13, the temperature sensor 23 and the combustible gas detector 13 are electrically connected with the controller of a conventional control box; the periphery of the protective outer pipe 2 is provided with a heat preservation layer structure 14.

[0028] The pipeline structure for conveying corrosive Class A liquid of the utility model, the outer part of the conveying inner pipe 1 is sleeved with the protective outer pipe 2, the inner diameter of the protective outer pipe 2 is greater than the outer diameter of the conveying inner pipe 1, the pipe clamp assembly 5 is arranged in the protective outer pipe 2 to support the conveying inner pipe 1 to make the conveying inner pipe 1 suspended, so that a heat dissipation cavity is formed between the conveying inner pipe 1 and the protective outer pipe 2, the two ends of the protective outer pipe 2 are provided with the air inlets 8 and the air outlets 9 connected with the air compressor through the pipeline, air or nitrogen can be input into the heat dissipation cavity to ensure the gas flow in the protective outer pipe 2 and timely discharge the heat emitted by the conveying inner pipe 1, avoiding the local overheating of the conveying inner pipe 1 caused by conveying corrosive liquid;

[0029] The leakage discharge pipe assembly 12 is arranged on the protective outer pipe 2, which is convenient for discharging the leaked liquid from the liquid in the protective outer pipe 2 in time when the conveying inner pipe 1 leaks;

[0030] A temperature sensor 23 is arranged on the protective outer pipe 2 every 20-30 meters to monitor the temperature in the heat dissipation cavity in real time; a combustible gas detector 13 is arranged on the protective outer pipe 2 every 20-30 meters to monitor whether the conveying inner pipe 1 is combustible, if the conveying inner pipe 1 leaks, the corrosive liquid in the conveying inner pipe 1 contacts the inner wall of the protective outer pipe 2 to generate combustible gas, the combustible gas detector 13 will alarm.

[0031] Specifically, referring to Figure 2 , the top of the support rod 6 is fixedly connected with the pipe clamp assembly 5, and the bottom of the support rod 6 is provided with a screw rod portion, the screw rod portion is threadedly connected with a sleeve 15, the bottom end of the sleeve 15 is provided with a base 16 connected with the support seat 31 of the pipeline hanger 3, and the top of the support rod 6 is fixedly connected with the bottom end of the pipe clamp assembly 5 by welding or through a threaded structure. In the embodiment, the protective outer pipe 2 is composed of a plurality of pipe segments each having a length of three meters and connected by straight pipe joints. The pipe clamp assembly 5 is arranged at one end of each pipe segment close to the pipe opening. The pipe clamp assembly 5 is relatively easy to install in the three-meter-long pipe segment. The pipe clamp assembly 5 is fixedly connected with the pipeline hanger 3 through the support rod 6, the sleeve 15 and the base 16 and the support seat 31 of the pipeline hanger 3, so that the inner conveying pipe 1 clamped by the pipe clamp assembly 5 is fixed in position with the pipeline hanger 3, that is, the inner conveying pipe 1 is not in contact with the protective outer pipe 2. When the protective outer pipe 2 is impacted from the outside, the inner conveying pipe 1 will not be affected, effectively reducing the case of large fluctuations of the corrosive liquid in the inner conveying pipe 1.

[0032] Specifically, referring to Figure 2 and Figure 3 , the screw rod portion is threadedly connected with a lock nut 17 adapted to the top surface of the sleeve 15, and the base 16 is provided with a bolt structure connected with the support seat 31. The lock nut 17 abuts against the top surface of the sleeve 15, which can prevent the support rod 6 from rotating relative to the sleeve 15.

[0033] Specifically, referring to Figure 2 and Figure 3 , the pipe clamp assembly 5 includes a lower semicircular pipe clamp and an upper semicircular pipe clamp connected with the support rod 6. The lower semicircular pipe clamp and the upper semicircular pipe clamp are fixedly connected through a bolt structure on the ear plates on the two sides of the lower semicircular pipe clamp and the upper semicircular pipe clamp.

[0034] Specifically, referring to Figure 2 , the observation window 11 is provided with a transparent plate 10, and the transparent plate 10 is a transparent PVC plate. The protective outer pipe 2 is a PVC pipe. The inner conveying pipe 1 is a stainless steel pipe structure, and the pipe clamp assembly 5 is a stainless steel structure. The main component of the PVC structure is polyvinyl chloride.

[0035] Specifically, referring to Figure 4 , the protective outer pipe 2 is a structure formed by butt joint of a plurality of PVC pipes. The leakage pipe assembly 12 includes a tee joint 18 for butt joint of two PVC pipes and an outer discharge pipe 19 connected with a branch pipe interface located in the middle of the tee joint 18. The tee joint 18 is arranged at a low point of the protective outer pipe 2. The opening direction of the branch pipe interface of the tee joint 18 points downward of the tee joint 18. The tee joint 18 is provided with a valve 20 at the connection position with the outer discharge pipe 19. The valve 20 is a manual stop valve. The leaked liquid in the leakage pipe assembly 12 can be discharged by opening the valve 20.

[0036] Specifically, referring to Figure 2 , the heat preservation layer structure 14 includes a heat preservation cotton layer 21 wrapped around the protective outer pipe 2 and an aluminum skin fixing layer structure 22 wrapped around the heat preservation cotton layer 21, the aluminum skin fixing layer structure 22 and the heat preservation cotton layer 21 are provided with observation holes corresponding to the observation window 11, the situation inside the protective outer pipe 2 can be viewed through the observation holes and the observation window 11, which is convenient for timely discovering whether the conveying inner pipe 1 leaks. The support rod 6 and the sleeve 15 are arranged through the heat preservation cotton layer 21 and the aluminum skin fixing layer structure 22, the base 16 abuts against the aluminum skin fixing layer structure 22, and the heat preservation layer structure 14 and the protective outer pipe 2 are supported by the base 16.

[0037] Specifically, referring to Figure 1 , every 3 meters of the outside of the protective outer pipe 2 is provided with a pipeline hanger 3, the support seat 31 of the pipeline hanger 3 is vertically provided with a hanger rod 32 connected with the external floor at both ends, and an upper beam 33 is connected between the two hanger rods 32, the upper beam 33 is provided with an electrical wire groove 34, and the electrical wire groove 34 is connected with the upper beam 33 between the two pipeline hangers 3; the protective outer pipe 2 and the conveying inner pipe 1 are supported by the pipeline hanger 3; the upper beam 33 of the pipeline hanger 3 can play a reinforcing role, and the electrical wire groove 34 arranged on the upper beam 33 is used for neatly arranging the wires of the temperature sensor 23 and the combustible gas detector 13.

[0038] Specifically, referring to Figure 1 , the support seat 31 and the upper beam 33 are angle steel structures, the bottom end of the hanger rod 32 is arranged through the support seat 31 and is threadedly connected with a first upper limiting nut and a first lower limiting nut corresponding to the upper and lower surfaces of the support seat 31; the upper beam 33 is arranged above the support seat 31, both ends of the upper beam 33 are provided with through holes for the hanger rod 32 to pass through, and the hanger rod 32 is threadedly connected with a second upper limiting nut and a second lower limiting nut corresponding to the upper and lower surfaces of the upper beam 33, the hanger rod 32 is a long screw rod structure, the upper beam 33 can be supported and fixed by the second upper limiting nut and the second lower limiting nut, and the support seat 31 can be supported and fixed by the first upper limiting nut and the first lower limiting nut.

[0039] In the embodiment, referring to Figure 5 and Figure 6 , the front end edge of the sealing plug 7 is provided with a chamfer structure 24, after the sealing plug 7 is connected with the protective outer pipe 2, heat sol can be arranged between the chamfer structure 24 and the inner wall of the protective outer pipe 2 to seal and fix, so as to prevent liquid leakage.

[0040] The technical features of the above embodiments can be combined in any manner, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope recorded in the present specification.

[0041] The above embodiments only express one or several embodiments of the present application, which are described in more detail and specifically, but cannot be understood as limiting the scope of the patent application. It should be noted that for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A pipe structure for conveying corrosive class A liquids, comprising a conveying inner pipe (1), characterized in that, The outer sleeve of the conveying inner tube (1) is provided with a protective outer tube (2), the outer tube of the protective outer tube (2) is provided with a pipeline hanger (3), the protective outer tube (2) is provided with a pipe clamp assembly (5) for supporting the conveying inner tube (1), the bottom of the pipe clamp assembly (5) is provided with a support rod (6) which is detachably connected with the support seat (31) of the pipeline hanger (3); the two ends of the protective outer tube (2) are provided with sealing plugs (7), the two sealing plugs (7) are respectively provided with air inlet (8) and air outlet (9); the pipe wall of the protective outer tube (2) is provided with an observation window (11), the protective outer tube (2) is connected with a leakage pipe assembly (12), a temperature sensor (23) and a combustible gas detector (13); the periphery of the protective outer tube (2) is provided with a heat preservation layer structure (14).

2. A pipe construction for the transport of corrosive class A liquids according to claim 1, characterized in that The top of the support rod (6) is fixedly connected with the pipe clamp assembly (5), the bottom of the support rod (6) is provided with a screw rod part, the screw rod part is threadedly connected with a sleeve (15), the bottom end of the sleeve (15) is provided with a base (16) which is connected with the support seat (31) of the pipeline hanger (3).

3. A pipe construction for the transport of corrosive class A liquids according to claim 2, characterized in that The screw rod part is threadedly connected with a lock nut (17) which is matched with the top surface of the sleeve (15), the base (16) is provided with a bolt structure which is connected with the support seat (31).

4. A pipe construction for the transport of corrosive liquid of category A according to claim 3, characterized in that The pipe clamp assembly (5) comprises a lower semicircular pipe clamp and an upper semicircular pipe clamp which are connected with the support rod (6), the two sides of the lower semicircular pipe clamp and the upper semicircular pipe clamp are provided with ear plates, and the lower semicircular pipe clamp and the upper semicircular pipe clamp are fixedly connected through the bolt structure on the ear plates.

5. A pipe construction for the transport of corrosive class A liquids according to claim 3, characterized in that The observation window (11) is provided with a transparent plate (10), the transparent plate (10) is a transparent PVC plate, and the protective outer tube (2) is a PVC pipe; the conveying inner tube (1) is a stainless steel pipe structure, and the pipe clamp assembly (5) is a stainless steel structure.

6. A pipe construction for the transport of corrosive liquid of category A according to any one of claims 1 to 5, characterized in that The protective outer tube (2) is a structure formed by butt joint of multiple PVC pipes, the leakage pipe assembly (12) comprises a tee joint (18) for butt joint of two PVC pipes and an outer discharge pipe (19) connected with a branch pipe interface located in the middle of the tee joint (18), the opening direction of the branch pipe interface of the tee joint (18) points to the lower side of the tee joint (18), and the outer discharge pipe (19) is provided with a valve (20) at the connection position with the tee joint (18).

7. A pipe construction for the transport of corrosive class A liquids according to claim 6, characterized in that The heat preservation layer structure (14) comprises a heat preservation cotton layer (21) wrapped around the protective outer tube (2) and an aluminum skin fixing layer structure (22) wrapped around the heat preservation cotton layer (21), and the aluminum skin fixing layer structure (22) and the heat preservation cotton layer (21) are provided with observation holes corresponding to the observation window (11).

8. A pipe construction for the transport of corrosive class A liquids according to claim 6, characterized in that The support seat (31) of the pipeline hanger (3) is vertically provided with two hanger rods (32) connected with external structures, and an upper beam (33) is connected between the two hanger rods (32), and the upper beam (33) is provided with an electrical wire slot (34).

9. A pipe construction for the transport of corrosive class A liquids according to claim 8, characterized in that The bottom end of the suspender (32) is arranged through the support base (31) and is threadedly connected with a first upper limiting nut and a first lower limiting nut adapted to the upper and lower surfaces of the support base (31); the upper beam (33) is arranged above the support base (31), and both ends of the upper beam (33) are provided with through holes for the suspender (32) to pass through, and the suspender (32) is threadedly connected with a second upper limiting nut and a second lower limiting nut adapted to the upper and lower surfaces of the upper beam (33).

10. A pipe construction for the transport of corrosive class A liquids according to claim 9, characterized in that The support base (31) and the upper beam (33) are angle steel structures.

Images