CN209387481U - A kind of crust corrosion resistance test device of direct-buried heat insulation pipe - Google Patents

Abstract

The utility model discloses a kind of crust corrosion resistance test devices of direct-buried heat insulation pipe, rectangular enclosure inner wall front and rear sides offer rectangular slot, partition is plugged between two rectangular slots, rectangular enclosure is divided into two test cavitys by the partition, symmetrical fixing assembling has motor in the middle part of the left and right sidewall of the test box, the output end of the motor has stud through test box side wall fixing assembling, insulating tube crust to be tested is socketed on the outside of the stud, the inner wall bottom end of the test cavity offers the first drainage hole, the lower end fixing assembling of the test box has collecting tank, the upper end of the test box, which fastens, upper cover, the left and right sides of the upper cover, which is fixed to run through, inlet tube, the lower end fixing assembling of the inlet tube has shower, direct-buried heat insulation pipe crust can be more accurately obtained by the present apparatus Corrosion resistance.

Description

A kind of crust corrosion resistance test device of direct-buried heat insulation pipe

Technical field

The utility model relates to insulating tube the field of test technology, the crust corrosion resistance of specially a kind of direct-buried heat insulation pipe Test device.

Background technique

It needs to can be carried out test, corrosion resistance to the corrosion resistance of its crust in the production process of direct-buried heat insulation pipe Predominantly acid-resisting corrosion and alkali resistance corrosion, it is existing to be set for direct-buried heat insulation pipe corrosion resistance test device at one It is simulated, cannot be contrasted by the simulation of multiple groups different situations corrosion condition, together just for a kind of corrosive environment in standby When the corrosion condition simulated it is single, cannot be compared and analyzed by a variety of corrosion conditions.

Utility model content

The purpose of this utility model is to provide a kind of crust corrosion resistance test devices of direct-buried heat insulation pipe, to solve The problems mentioned above in the background art.

To achieve the above object, the utility model provides the following technical solutions: a kind of anti-corruption of the crust of direct-buried heat insulation pipe Corrosion test device, including test box, the inside of the test box offer rectangular enclosure, the rectangular enclosure inner wall front and back two Side offers rectangular slot, and partition, and the outer wall of partition and rectangular slot inner wall are plugged between two rectangular slots It fits closely, rectangular enclosure is divided into two test cavitys by the partition, and the left and right sidewall middle part of the test box is symmetrical solid Surely it is equipped with motor, the output end of the motor has stud, the lateral wall set of the stud through test box side wall fixing assembling It connects there are two disk, the lateral wall of the stud is spirally connected, and there are two nuts, and two nuts are located at the outside of two disks, described Insulating tube crust to be tested is socketed on the outside of stud, and insulating tube crust to be tested is located between two disks, it is described The inner wall bottom end of test cavity offers the first drainage hole, and the lower end fixing assembling of the test box has collecting tank, the liquid collecting The right side wall lower end of slot is fixed to be plugged with drain pipe, and the outer wall fixing assembling of the drain pipe has a valve, the test box it is upper End, which fastens, upper cover, and the left and right sides of the upper cover is fixed through there is inlet tube, and the lower end fixing assembling of the inlet tube has Shower.

Preferably, the upper surface of the partition is uniformly provided with groove, and there are four the quantity of groove, the groove it is interior Lateral fixing assembling has grid-shaped baffle plate in the middle part of wall, and the lower end of the groove offers intercommunicating pore, the lower surface of the test box It is uniformly provided with the second drainage hole, and the upper end of the second drainage hole is connected to intercommunicating pore one-to-one correspondence.

Preferably, the outer wall of the stud is socketed with support ring, and support ring is located between two disks, described to be tested Insulating tube crust is socketed on the outside of support ring.

Preferably, the bottom surface of the groove is taper.

Compared with prior art, the utility model has the beneficial effects that the utility model devises a kind of direct burial heat preservation The crust corrosion resistance test device of pipe, the present apparatus separate rectangular chamber by partition, divide in the test chamber of the left and right sides Same side heat preservation to be tested under different corrosive environments under corrosion condition of the same race is observed in the soda acid test for not carrying out corrosion condition of the same race The situation that pipe crust is corroded, (corrosion condition herein refers to insulating tube crust outer side covering acid solution or alkali to be tested Property solution situation, corrosive environment refers to acidic environment either alkaline environment) while phase can be placed in four grooves With the side insulating tube crust fragment to be tested of size, the acid solution of same volume is poured into two grooves, at other two The alkaline solution that same volume is poured into groove observes same side heat preservation to be tested under different corrosion conditions under corrosive environment of the same race The situation that pipe crust fragment is corroded obtains the corrosion resistance of more accurate direct-buried heat insulation pipe crust.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is the utility model structural representation top view.

In figure: 1 test box, 2 rectangular enclosures, 3 rectangular slots, 4 partitions, 41 grooves, 42 partitions, 43 intercommunicating pores, 5 tests Cavity, 6 motors, 7 studs, 8 disks, 9 nuts, 10 support rings, 11 insulating tube crusts to be tested, 12 first drainage holes, 13 liquid collectings Slot, 14 second drainage holes, 15 drain pipes, 16 valves, 17 upper covers, 18 inlet tubes, 19 showers.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of technical solution: a kind of anti-corruption of the crust of direct-buried heat insulation pipe Corrosion test device, including test box 1, the inside of test box 1 offer rectangular enclosure 2, and rectangular enclosure inner wall front and rear sides are equal Rectangular slot 3 is offered, partition 4 is plugged between two rectangular slots 3, and the outer wall of partition 4 and 3 inner wall of rectangular slot are close Rectangular enclosure 2 is divided into two test cavitys 5 by fitting, partition 4, there is symmetrical fixing assembling in the middle part of the left and right sidewall of test box 1 The output end of motor 6, motor 6 has stud 7 through 1 side wall fixing assembling of test box, and there are two disks for the lateral wall socket of stud 7 8, the lateral wall of stud 7 is spirally connected, and there are two nuts 9, and two nuts 9 are located at the outside of two disks 8, the outside socket of stud 7 There is insulating tube crust 11 to be tested, and insulating tube crust 11 to be tested is located between two disks 8, tests the inner wall bottom of cavity 5 End offers the first drainage hole 12, and the lower end fixing assembling of test box 1 has collecting tank 13, and the right side wall lower end of collecting tank 13 is fixed It is plugged with drain pipe 15, the outer wall fixing assembling of drain pipe 15 has valve 16, and the upper end of test box 1, which fastens, upper cover 17, upper cover 17 left and right sides is fixed through there is inlet tube 18, and the lower end fixing assembling of inlet tube 18 has shower 19.

13 homogeneous polyethylene material of the test box 1 and collecting tank, acid-alkali-corrosive-resisting with higher make in this programme Acid solution is hydrochloric acid solution, concentration 80%, and alkaline solution used in this programme is sodium hydroxide solution, dense Degree is 80%.

The test chamber 5 of two sides is connected after extraction partition 4, and the insulating tube crust 11 to be tested that can take, such as Fig. 1 There are gaps between shown 7 inner end of stud and partition 4, avoid partition 4 that stud 7 is hindered to rotate, and collecting tank 13 is protected for collecting The acid solution and alkaline solution being discharged after warm pipe erosion test, periodically carry out discharge cleaning.

Specifically, the upper surface of partition 4 is uniformly provided with groove 41, and there are four the quantity of groove 41, groove 41 Lateral fixing assembling has grid-shaped baffle plate 42 in the middle part of inner wall, and the lower end of groove 41 offers intercommunicating pore 43, the following table of test box 1 Face is uniformly provided with the second drainage hole 14, and the upper end of the second drainage hole 14 is connected to the one-to-one correspondence of intercommunicating pore 43, after test Waste liquid flows into collecting tank 13 along intercommunicating pore 43 and the second drainage hole 14.

It is in the fragment of same size side insulating tube crust shearing to be tested, side insulating tube crust fragment to be tested is placed on On partition 42, the aperture of partition 42 is less than the side insulating tube crust fragment to be tested after shearing, pours into phase in two grooves 41 The acid solution of same volume pours into the alkaline solution of same volume in other two groove 41, observes under corrosive environment of the same race The situation that same side insulating tube crust fragment to be tested is corroded under different corrosion conditions, obtains more accurate direct-buried heat insulation pipe The corrosion resistance of crust, corrosion condition herein refer to that insulating tube crust outer side covering acid solution to be tested or alkalinity are molten The situation of liquid, corrosive environment refer to acidic environment either alkaline environment.

Specifically, the outer wall of stud 7 is socketed with support ring 10, and support ring 10 is located between two disks 8, to be tested Insulating tube crust 11 is socketed on 10 outside of support ring.

Support ring 10 can prop up insulating tube crust 11 to be tested, so that stud 7 drives 11 turns of insulating tube crust to be tested After dynamic, the acid solution and alkaline solution that the shower 19 of 11 outer wall of insulating tube crust covering to be tested sprays are more evenly.

Specifically, the bottom surface of groove 41 is taper, conical design makes waste liquid be easier to be discharged.

Working principle: when using the present apparatus, extracting partition 4, and the nut 9 of inside under spiral shell removes the disk 8 of inside, to 11 sets of insulating tube crust of test covers upper disk 8 in support ring 10, from new, spiral shell top nut 9, while to the spiral shell that is spirally connected in the middle part of screw rod 7 Insulating tube crust 11 to be tested, is clamped in centre by two side discs 8 by mother 9, and motor 6 is electrically connected with external power supply, connects electricity Motor 6 drives screw rod 7 to rotate behind source, and revolving speed is adjusted to 100 revs/min by speed reducer, the drive support ring 10 of screw rod 7 and to 11 uniform rotation of insulating tube crust is tested, connects external hydraulic pump in the outboard end of inlet tube 18, external hydraulic pump powers on It is pressed into acid solution in backward left side inlet tube 18, alkaline solution, two external hydraulic pump works are pressed into right side inlet tube 18 It is disconnected after making one minute, the acid solution of entrance is identical with alkaline solution volume, acid solution or alkali under being spilt by shower 19 In 11 outer wall of insulating tube crust to be tested, corrosion condition herein refers to outside insulating tube crust to be tested property solution uniform fold Side covers the situation of acid solution or alkaline solution, and corrosive environment refers to acidic environment either alkaline environment, observes of the same race The situation that same side insulating tube crust to be tested is corroded under different corrosive environments under corrosion condition；

It is in the fragment of same size side insulating tube crust shearing to be tested, side insulating tube crust fragment to be tested is placed on On partition 42, the aperture of partition 42 is less than the side insulating tube crust fragment to be tested after shearing, pours into phase in two grooves 41 The acid solution of same volume pours into the alkaline solution of same volume in other two groove 41, observes under corrosive environment of the same race The situation that same side insulating tube crust fragment to be tested is corroded under different corrosion conditions, obtains more accurate direct-buried heat insulation pipe The corrosion resistance of crust.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (4)

1. a kind of crust corrosion resistance test device of direct-buried heat insulation pipe, it is characterised in that: including test box (1), the survey The inside of examination case (1) offers rectangular enclosure (2), and rectangular enclosure inner wall front and rear sides offer rectangular slot (3), and two It is plugged with partition (4) between a rectangular slot (3), and the outer wall of partition (4) is fitted closely with rectangular slot (3) inner wall, Rectangular enclosure (2) is divided into two test cavitys (5) by the partition (4), and the left and right sidewall middle part of the test box (1) is symmetrical Fixing assembling has motor (6), and the output end of the motor (6) has stud (7) through test box (1) side wall fixing assembling, described The lateral wall socket of stud (7) is there are two disk (8), and the lateral wall of the stud (7) is spirally connected there are two nut (9), and two Nut (9) is located at the outside of two disks (8), is socketed with insulating tube crust (11) to be tested on the outside of the stud (7), and to It tests insulating tube crust (11) to be located between two disks (8), the inner wall bottom end of test cavity (5) offers first The lower end fixing assembling of drainage hole (12), the test box (1) has collecting tank (13), the right side wall lower end of the collecting tank (13) Fixation be plugged with drain pipe (15), the outer wall fixing assembling of the drain pipe (15) has valve (16), the test box (1) it is upper End, which fastens, to be had upper cover (17), and the left and right sides of the upper cover (17), which is fixed to run through, to be had inlet tube (18), the inlet tube (18) Lower end fixing assembling have shower (19).

2. a kind of crust corrosion resistance test device of direct-buried heat insulation pipe according to claim 1, it is characterised in that: institute The upper surface for stating partition (4) is uniformly provided with groove (41), and there are four the quantity of groove (41), the inner wall of the groove (41) Middle part transverse direction fixing assembling has grid-shaped baffle plate (42), and the lower end of the groove (41) offers intercommunicating pore (43), the test The lower surface of case (1) is uniformly provided with the second drainage hole (14), and the upper end of the second drainage hole (14) and intercommunicating pore (43) are one by one Corresponding connection.

3. a kind of crust corrosion resistance test device of direct-buried heat insulation pipe according to claim 1, it is characterised in that: institute The outer wall for stating stud (7) is socketed with support ring (10), and support ring (10) is located between two disks (8), the guarantor to be tested Warm pipe crust (11) is socketed on the outside of support ring (10).

4. a kind of crust corrosion resistance test device of direct-buried heat insulation pipe according to claim 2, it is characterised in that: institute The bottom surface for stating groove (41) is taper.