Double-layer buried storage tank with leakage detection function

Abstract

The double-layer buried storage tank comprises an outer shell, the inner end of the outer shell is fixedly connected with an inner shell, the middle of the upper side of the outer shell and the middle of the upper side of the inner shell are each provided with a feeding pipe and a discharging pipe, the outer shell and the inner shell are each connected with a protection part used for detecting leakage, and each protection part comprises a detection part and a control part, the inner shell is installed in the middle of the outer shell; and the liquid drainage piece is installed on the outer shell and used for judging the leakage position, and the liquid drainage piece comprises a plurality of sets of separation frames installed on the outer side of the inner shell. According to the double-layer buried storage tank with the leakage detection function, cavities of the outer shell and the inner shell are divided into a plurality of flow dividing cavities through the multiple sets of separation frames, leaked liquid in the inner shell flows into the transition cylinder through the liquid discharging pipe, and under the action of gravity, the buffer cylinder moves downwards along the inner wall of the transition cylinder under pushing of the liquid and compresses the spring; the compression spring transmits the force to the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of underground storage tanks, in particular to a double-layer underground storage tank with leakage detection. Background Art

[0002] Underground storage tanks are usually used in the fields of chemical industry, printing and dyeing, gas stations, etc. to store corresponding media. A new type of double-layer buried tank with reference to publication number CN218808011U includes a tank body and a detection riser; the tank body includes an inner shell and an outer shell, which enhances the sealing performance around the detection riser and the lower shell of the inner shell. As described in the above patent, when the existing double-layer buried storage tanks to be leaked are used, most of them fail to judge and process the leakage interval of the inner shell, which is not conducive to subsequent maintenance and is easy to cause the leakage liquid to accumulate between the inner shell and the outer shell, increasing the subsequent processing steps. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a double-layer underground storage tank with leakage detection, which solves the problems that the device fails to effectively determine the leakage range and is not conducive to the inspection and maintenance of the leakage end.

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions: a double-layer underground storage tank with leakage detection, including an outer shell, the inner end of the outer shell is fixedly connected to the inner shell, the outer shell and the middle part of the upper side of the inner shell are both equipped with a feed pipe and a discharge pipe, the outer shell and the inner shell are both connected with a protective member for detecting leakage, and the protective member includes:

[0005] Detection parts, installed in the middle of the outer shell and inner shell for leakage detection;

[0006] A drainage component is installed on the outer shell for draining out leaked liquid and determining the leakage position. The drainage component includes a plurality of groups of partition frames installed on the outer side of the inner shell and fixedly connected to the inner wall of the outer shell. An array of drainage pipes is provided on the side of the partition frames corresponding to the bottom of the outer shell. The bottom of the drainage pipe is fixedly connected and communicated with a transition tube. A pressure sensor is installed at the bottom of the transition tube. A spring is fixedly connected to the top of the pressure sensor. A buffer tube slidably connected to the inner end of the transition tube is fixedly connected to the top of the spring. A conduit is provided on the transition tube near the right side of the buffer tube. A temporary storage box is fixedly connected to the bottom of the conduit.

[0007] Preferably, the detection component comprises a detection tube fixedly connected to the outer shell and the inner shell respectively, buffer frames are provided on both sides of the inner shell close to the detection tube, and a hydraulic sensor is installed at the bottom of the detection tube.

[0008] Preferably, a support frame is installed on the outer side of the outer shell, and a cavity is provided between the inner wall of the outer shell and the outer side of the inner shell.

[0009] Preferably, the drain pipe is communicated with the inner end of the outer shell, and a transition groove is provided on the right side of the transition tube near the end of the conduit.

[0010] Preferably, the pressure sensor is electrically connected to an external controller, and the edge of the buffer cylinder is in contact with the inner wall of the transition cylinder.

[0011] Preferably, the liquid discharge member further comprises a liquid pumping member installed at the front side of the temporary storage box, the liquid pumping member comprises a valve fixedly connected to the left side of the temporary storage box, and a liquid pump assembly is installed at the rear side of the valve.

[0012] Beneficial Effects

[0013] The utility model provides a double-layer underground storage tank with leakage detection. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The double-layer underground storage tank with leakage detection is provided with a drainage device in the device. A plurality of partition frames divide the outer shell and the inner shell cavity into a plurality of diversion chambers. The leaked liquid in the inner shell flows into the transition tube through the drainage pipe. Under the action of gravity, the buffer tube moves down along the inner wall of the transition tube under the push of the liquid and compresses the spring. The pressure sensor spring pressure is forced to transmit an electrical signal to the external controller, reminding the user that the inner shell of the diversion chamber in this section is leaking, which is helpful for subsequent maintenance operations. When the buffer tube moves down to a suitable height, the liquid flows into the temporary storage box along the conduit to prevent liquid accumulation from affecting subsequent maintenance.

[0015] (2) The double-layer underground storage tank with leakage detection is provided with a detection component in the device. Two sets of buffer frames provide buffer protection for the detection tube during the liquid introduction process. The hydraulic sensor monitors the liquid pressure in the inner shell in real time. When the hydraulic sensor detects that the hydraulic pressure at the lower end of the inner shell continues to decrease, it means that the inner shell is leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 This is an enlarged view of the buffer frame of the utility model;

[0018] Figure 3 For this utility model Figure 1 A partial enlarged view of the middle A;

[0019] Figure 4 It is a three-dimensional diagram of the utility model.

[0020] In the figure: 1. outer shell; 2. inner shell; 3. feed pipe; 4. discharge pipe; 5. detection part; 51. detection tube; 52. buffer rack; 53. hydraulic sensor; 6. drainage part; 61. partition frame; 62. drainage pipe; 63. transition cylinder; 64. pressure sensor; 65. spring; 66. buffer cylinder; 67. conduit; 68. temporary storage box; 69. liquid extraction part. 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] like Figure 1-4 The first one shown is an implementation method: a double-layer underground storage tank with leakage detection, including an outer shell 1, an inner shell 2 is fixedly connected to the inner end of the outer shell 1, a feed pipe 3 and a discharge pipe 4 are installed in the middle of the upper side of the outer shell 1 and the inner shell 2, and the outer shell 1 and the inner shell 2 are connected with a protective member for detecting leakage, and the protective member includes: a detection member 5, which is installed in the middle of the outer shell 1 and the inner shell 2 for leakage detection;

[0023] The draining member 6 is installed on the outer shell 1 for draining the leaked liquid and judging the leakage position. The draining member 6 includes a plurality of partition frames 61 installed on the outer side of the inner shell 2 and fixedly connected to the inner wall of the outer shell 1. An array of draining pipes 62 is provided on the side of the partition frame 61 at the bottom of the outer shell 1. The bottom of the draining pipe 62 is fixedly connected and communicated with a transition tube 63. A pressure sensor 64 is installed at the bottom of the transition tube 63. A spring 65 is fixedly connected to the top of the pressure sensor 64. A buffer tube 66 slidably connected to the inner end of the transition tube 63 is fixedly connected to the top of the spring 65. A guide tube 67 is provided on the right side of the transition tube 63 near the buffer tube 66. A temporary storage box 68 is fixedly connected to the bottom of the guide tube 67.

[0024] A support frame is installed on the outer side of the outer shell 1, and a cavity is provided between the inner wall of the outer shell 1 and the outer side of the inner shell 2; the liquid discharge pipe 62 is connected to the inner end of the outer shell 1, and a transition groove is provided on the right side of the transition tube 63 near the end of the guide tube 67; the pressure sensor 64 is electrically connected to the external controller, and the edge of the buffer tube 66 is in contact with the inner wall of the transition tube 63; the liquid discharge member 6 also includes a liquid extraction member 69 installed on the front side of the temporary storage box 68, and the liquid extraction member 69 includes a valve fixedly connected to the left side of the temporary storage box 68, and a liquid pump assembly is installed on the rear side of the valve;

[0025] Several groups of partition frames 61 divide the outer shell 1 and the inner shell 2 into several diversion chambers. The leaked liquid in the inner shell 2 flows into the transition tube 63 through the drain pipe 62. Under the action of gravity, the buffer tube 66 moves down along the inner wall of the transition tube 63 under the push of the liquid and compresses the spring 65. The compression spring 65 transmits the force to the pressure sensor 64. The pressure sensor 64 transmits the electrical signal to the external controller to remind the user that the inner shell 2 of the diversion chamber of this section is leaking. When the buffer tube 66 moves down to a suitable height, the liquid flows into the temporary storage box 68 along the guide tube 67.

[0026] like Figure 1-3 The second embodiment shown is mainly different from the first embodiment in that:

[0027] The detection component 5 includes a detection tube 51 fixedly connected to the outer shell 1 and the inner shell 2 respectively. Buffer frames 52 are provided on both sides of the inner shell 2 close to the detection tube 51. A hydraulic sensor 53 is installed at the bottom of the detection tube 51. The two groups of buffer frames 52 provide buffering protection for the detection tube 51 during the liquid introduction process. The hydraulic sensor 53 monitors the liquid pressure in the inner shell 2 in real time. When the hydraulic sensor 53 detects that the hydraulic pressure at the lower end of the inner shell 2 continues to decrease, it means that the inner shell 2 is leaking.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0029] During use, the user introduces the liquid to be stored into the inner shell 2 through the feed pipe 3. The inner shell 2 and the outer shell 1 provide double protection for the stored liquid. The two groups of buffer frames 52 provide buffer protection for the detection tube 51 during the liquid introduction process. After the liquid is filled, the feed pipe 3 is closed, and the hydraulic sensor 53 and the pressure sensor 64 at the bottom of the detection tube 51 are turned on. The hydraulic sensor 53 monitors the liquid pressure in the inner shell 2 in real time. When the hydraulic sensor 53 detects that the hydraulic pressure at the lower end of the inner shell 2 continues to decrease, it means that the inner shell 2 is leaking. Since several groups of partition frames 61 separate the outer shell 1 from the inner shell 2, the outer shell 1 and the inner shell 2 are separated. The cavity is divided into several diversion chambers, and the leaked liquid flows into the corresponding diversion chamber according to the leakage position. The liquid entering the diversion chamber flows into the transition tube 63 through the discharge pipe 62 of the diversion chamber. Under the action of gravity, the buffer tube 66 moves down along the inner wall of the transition tube 63 under the push of the liquid and compresses the spring 65. The compression spring 65 transmits the force to the pressure sensor 64. The pressure sensor 64 transmits the electrical signal to the external controller to remind the user that the inner shell 2 of the diversion chamber in this section is leaking. When the buffer tube 66 moves down to a suitable height, the liquid flows into the temporary storage box 68 along the conduit 67.

[0030] 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.

[0031] 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 double-layer underground storage tank with leak detection, comprising a shell (1), characterized in that: The inner end of the outer shell (1) is fixedly connected to the inner shell (2), and a feed pipe (3) and a discharge pipe (4) are installed in the middle of the upper side of the outer shell (1) and the inner shell (2). The outer shell (1) and the inner shell (2) are both connected to a protective member for detecting leakage, and the protective member comprises: A detection component (5) is installed in the middle of the outer shell (1) and the inner shell (2) for leakage detection; A liquid discharge member (6) is mounted on the outer shell (1) and is used for draining leaked liquid and determining the leakage position. The liquid discharge member (6) comprises a plurality of groups of partition frames (61) mounted on the outer side of the inner shell (2) and fixedly connected to the inner wall of the outer shell (1). A plurality of liquid discharge pipes (62) are arranged at the bottom of the outer shell (1) on the side corresponding to the partition frames (61). The bottom of the liquid discharge pipes (62) is fixedly connected to and communicates with a transition tube (63). A pressure sensor (64) is installed at the bottom of the transition tube (63). A spring (65) is fixedly connected to the top of the pressure sensor (64). A buffer tube (66) slidably connected to the inner end of the transition tube (63) is fixedly connected to the top of the spring (65). A guide tube (67) is arranged on the right side of the transition tube (63) close to the buffer tube (66). A temporary storage box (68) is fixedly connected to the bottom of the guide tube (67).

2. A double-layer underground storage tank with leakage detection according to claim 1, characterized in that: The detection member (5) comprises a detection tube (51) fixedly connected to the outer shell (1) and the inner shell (2), respectively; buffer frames (52) are provided on both sides of the inner shell (2) close to the detection tube (51); and a hydraulic sensor (53) is installed at the bottom of the detection tube (51).

3. A double-layer underground storage tank with leakage detection according to claim 1, characterized in that: A support frame is installed on the outside of the outer shell (1), and a cavity is provided between the inner wall of the outer shell (1) and the outside of the inner shell (2).

4. A double-layer underground storage tank with leakage detection according to claim 1, characterized in that: The liquid discharge pipe (62) is in communication with the inner end of the outer shell (1), and a transition groove is provided on the right side of the transition tube (63) near the end of the guide tube (67).

5. A double-layer underground storage tank with leakage detection according to claim 1, characterized in that: The pressure sensor (64) is electrically connected to an external controller, and the edge of the buffer tube (66) is in contact with the inner wall of the transition tube (63).

6. A double-layer underground storage tank with leakage detection according to claim 1, characterized in that: The liquid discharge member (6) further comprises a liquid extraction member (69) mounted on the front side of the temporary storage box (68), the liquid extraction member (69) comprising a valve fixedly connected to the left side of the temporary storage box (68), and a liquid pump assembly is mounted on the rear side of the valve.

Images