An ABS plastic tank outlet joint device

Abstract

The utility model discloses an ABS plastic storage tank outlet joint device, is equipped with the connecting sleeve in the bottom side of storage tank, the connecting sleeve is equipped with the end of wearing in the storage tank, is equipped with the end of wearing outside the storage tank, the end of wearing is equipped with the flange, the flange is equipped with the annular groove with the contact side of storage tank inner wall, is equipped with the sealing ring in the annular groove, is equipped with the lock nut outside the end of wearing, is equipped with the threaded connection between the outer wall of the end of wearing, is equipped with the connecting flange in the end of wearing away from the storage tank, is equipped with the hexagonal fastener between the connecting flange and the storage tank outlet flange, is equipped with the annular groove in the side of contact of connecting flange and storage tank outlet flane, is equipped with the sealing ring in the annular groove. The utility model is through " sealing ring + thread + connecting flange " three -fold connection mode, with the storage tank assembly, the connecting flange and the storage tank outlet flange are fixed, and the radial stress is dispersed, and three -layer connection makes the overall anti -loosening ability to promote 50% or more, forms integrated sealing structure and medicament flow device, prevents the storage tank leakage, and the connecting flange is connected with the valve, and the storage tank outlet flow is controlled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical equipment connection technical field, concretely relates to a kind of ABS plastic storage tank outlet joint device. BACKGROUND

[0002] ABS plastic storage tank is widely used in the storage of chemical raw materials, food additives and other media due to its strong corrosion resistance and low cost. However, the existing storage tank outlet joint has the following problems: 1. Traditional rubber sealing ring lacks corrosion resistance and is prone to leakage due to aging; 2. The connection between the joint and the storage tank is mostly single flange connection, which is prone to looseness when subjected to uneven stress; 3. When plastic material is connected with metal parts, gaps are easily generated due to the difference in expansion coefficient. INVENTION CONTENTS

[0003] The utility model aims to provide an ABS plastic storage tank outlet joint device to solve the problems of existing joint sealing failure, loose connection and poor material compatibility.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: An ABS plastic storage tank outlet joint device includes a storage tank and a storage tank outlet flange. A connecting sleeve is provided on the bottom side wall of the storage tank. The penetrating end of the connecting sleeve is provided inside the storage tank, and the penetrating end is provided outside the storage tank. A flange is provided on the penetrating end, and an annular groove is provided on the side of the flange in contact with the inner wall of the storage tank. A sealing ring is provided in the annular groove. A lock nut is provided outside the penetrating end. A thread connection is provided between the nut and the outer wall of the penetrating end. A connecting flange is provided on the end of the penetrating end away from the storage tank. A hexagonal fastener is provided between the connecting flange and the storage tank outlet flange. An annular groove is provided on the side of the connecting flange in contact with the storage tank outlet flange, and a sealing ring is provided in the annular groove.

[0005] To further implement the utility model, the connecting sleeve is made of modified PE or ABS engineering plastic.

[0006] To further implement the utility model, the lock nut is a trapezoidal internal thread nut.

[0007] To further implement the utility model, the sealing ring is an O-shaped fluorine rubber ring.

[0008] To further implement the utility model, the outer diameter of the penetrating end of the connecting sleeve is 100 mm.

[0009] To further implement the utility model, the length of the penetrating end of the connecting sleeve is 15 mm.

[0010] To further implement the utility model, the thread is a trapezoidal internal thread with a length of 25 mm.

[0011] In order to further realize the utility model, the outer diameter of the connecting flange is 140mm.

[0012] In order to further realize the utility model, the length of the connecting sleeve is 98mm.

[0013] The utility model has the beneficial effects that compared with prior art: The utility model discloses a three-layer connection mode of "sealing ring (O type fluorine rubber ring) + thread + connecting flange", which is assembled with the bottom opening of the PE or ABS plastic storage tank, the connecting flange is fixed with the storage tank outlet flange through M12-50 hexagonal fastener, can disperse radial stress, three-layer connection makes the overall anti-loosening ability to improve more than 50%, forms integrated sealing structure and medicament outflow device, can meet the pressure requirement of chemical industry scene, adapts to various medicaments or other liquid storage tank use, prevents the liquid leakage of storage tank, and the connecting flange can be connected with the valve, controls the storage tank outlet flow, and forms the whole device of storage tank outlet joint.

[0014] The connecting sleeve of the utility model adopts the integrated injection molding of modified PE or ABS engineering plastic, and is a hollow stepped tubular structure, and the stepped structure realizes the transition connection of "storage tank inside-outlet-valve", and the design of 15mm wall thickness makes the pressure-bearing capacity reach 1.2MPa, which is far more than the limit value of 0.8MPa of traditional plastic joint.

[0015] The sealing reliability of the utility model is significantly improved, and the requirement of high-risk scene is met: through multiple sealing systems, the device can realize zero leakage sealing, in the conveying of corrosive medium (such as hydrochloric acid, sodium hydroxide solution) in chemical industry and high-cleanliness medium (such as food additive) in food industry, the device can effectively avoid the corrosion of equipment, environmental pollution or product pollution caused by medium leakage, and the safety of medium conveying meets the requirements of GB 50268 "Water Supply and Drainage Pipeline Engineering Construction and Acceptance Specification" and GB 19304 "National Food Safety Standard Packaged Drinking Water".

[0016] The utility model has high connection stability and convenient installation and maintenance: the composite connection mode makes the connection of the joint and the storage tank uniform, under the full load (such as 10m³ medium) condition of the storage tank, the deflection of the connection part is less than or equal to 0.2mm, there is no loosening risk, solves the problem of "stress concentration and easy fracture" of traditional single flange connection, and meanwhile, the threaded and flange connection design can realize simple and convenient disassembly and high adaptability, and reduces downtime cost.

[0017] This utility model has a wide range of applications, combining economy and versatility: the material and structure are compatible with ABS / PE plastic storage tanks, covering storage tanks of different volumes from 5m³ to 50m³, and simultaneously meeting the needs of multiple industries such as chemical (raw material transportation), food (additive storage), and environmental protection (pharmaceutical dosing). It eliminates the need for customized joints for different scenarios, reduces component assembly errors, improves product consistency, facilitates mass production and promotion, and has strong versatility. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the structure of this utility model; Fig. 2 This is a schematic diagram of the lock nut structure in this utility model; The meanings of the reference numerals in the attached drawings are as follows: 1. Storage tank; 2. Connecting sleeve; 3. Flange; 4. Annular groove; 5. Sealing ring; 6. Lock nut; 7. Thread; 8. Connecting flange; 9. Storage tank outlet flange; 10. Hexagonal fastener. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figs. 1-2 As shown, an ABS plastic storage tank outlet connector device includes a storage tank, characterized in that: a connecting sleeve 2 is provided on the bottom side wall of the storage tank 1, the connecting sleeve 1 is made of modified PE or ABS engineering plastic, the length of the connecting sleeve 2 is 98mm, the insertion end of the connecting sleeve 2 is inserted into the inside of the storage tank 1, the outer diameter of the insertion end of the connecting sleeve 2 is 100mm, the exit end is inserted into the outside of the storage tank 1, the length of the exit end of the connecting sleeve 2 is 15mm, a flange 3 is provided at the insertion end, and an annular groove 4 is provided on the side of the flange 3 that contacts the inner wall of the storage tank 1, and a sealing device is provided in the annular groove 4. Ring 5, sealing ring 5 is an O-ring fluororubber ring, a lock nut 6 is provided on the outside of the protruding end, the lock nut 6 is a trapezoidal internal thread nut, the nut 6 is connected to the outer wall of the protruding end by a matching thread 7, the thread 7 is a trapezoidal internal thread with a length of 25mm, a connecting flange 8 is provided at the end of the protruding end away from the storage tank 1, the outer diameter of the connecting flange 8 is 140mm, a hexagonal fastener 10 is provided between the connecting flange 8 and the storage tank outlet flange 9, an annular groove 4 is provided on the side of the connecting flange 8 that contacts the storage tank outlet flange 9, and a sealing ring 5 is provided in the annular groove 4.

[0021] During operation, a hole is made on the bottom side wall of storage tank 1, and the connecting sleeve 2 is inserted into the hole from inside the storage tank. The nut 6 is put into the connecting sleeve 2 from the protruding end and screwed onto the thread 7 so that the sealing ring 5 is pressed against the inner wall of storage tank 1 to ensure a seal. Then, the connecting flange 8 is welded to the connecting sleeve 2, and the storage tank outlet flange 9 is connected and fixed to the connecting flange 8 by M12-50 hexagonal fasteners 10.

Claims

1. An ABS plastic storage tank outlet connector device, comprising a storage tank and a storage tank outlet flange, characterized in that: A connecting sleeve (2) is installed on the bottom side wall of the storage tank (1). The insert end of the connecting sleeve (2) is installed inside the storage tank (1), and the outlet end is installed outside the storage tank (1). A flange (3) is provided at the insert end. An annular groove (4) is provided on the side of the flange (3) that contacts the inner wall of the storage tank (1). A sealing ring (5) is provided in the annular groove (4). A lock nut (6) is provided on the outside of the outlet end. A thread (7) is provided between the nut (6) and the outer wall of the outlet end. A connecting flange (8) is provided at the end of the outlet end that is away from the storage tank (1). A hexagonal fastener (10) is provided between the connecting flange (8) and the outlet flange (9) of the storage tank. An annular groove (4) is provided on the side of the connecting flange (8) that contacts the outlet flange (9) of the storage tank. A sealing ring (5) is provided in the annular groove (4).

2. The ABS plastic storage tank outlet connector device as described in claim 1, characterized in that: The connecting sleeve (1) is made of modified PE or ABS engineering plastic.

3. The ABS plastic storage tank outlet connector device as described in claim 1 or 2, characterized in that: The lock nut (6) is a trapezoidal internal thread nut.

4. The ABS plastic storage tank outlet connector device as described in claim 3, characterized in that: The sealing ring (5) is an O-ring made of fluororubber.

5. The ABS plastic storage tank outlet connector device as described in claim 4, characterized in that: The outer diameter of the insertion end of the connecting sleeve (2) is 100mm.

6. The ABS plastic storage tank outlet connector device as described in claim 5, characterized in that: The length of the protruding end of the connecting sleeve (2) is 15mm.

7. The ABS plastic storage tank outlet connector device as described in claim 6, characterized in that: The thread (7) is a trapezoidal internal thread with a length of 25mm.

8. The ABS plastic storage tank outlet connector device as described in claim 7, characterized in that: The outer diameter of the connecting flange (8) is 140 mm.

9. The ABS plastic storage tank outlet connector device as described in claim 8, characterized in that: The length of the connecting sleeve (2) is 98mm.

Images