Cooling device for liquefied petroleum gas tank

Abstract

The utility model discloses a liquefied petroleum gas tank cooling device which comprises a spraying pipe and a supporting arm, the spraying pipe is longitudinally designed and formed, the top of the spraying pipe is a tail section which is provided with a water outlet spraying port, and the bottom of the spraying pipe is a front section which is connected with a water conveying pipeline; and the tail section of the spraying pipe is a bent pipe with radian. A plurality of groups of spray cooling devices can be arranged at equal intervals so as to be matched with a gas tank with a certain length to effectively and integrally spray and cool, and remote on-off control and timed spray are realized by arranging an electric stop valve; therefore, the manual operation intensity is reduced, meanwhile, the cost for building the sunshade can be reduced, and the hazard that leakage is not easy to dissipate when the leakage occurs can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquefied natural gas tanks, and particularly relates to a cooling device for liquefied petroleum gas tanks. Background Art

[0002] Recently, liquefied petroleum gas has attracted much attention due to its wide use, high acceptance by the public, clean combustion products, high combustion efficiency, etc. With the increasing maturity of the liquefied petroleum gas industry, liquefied petroleum gas storage and distribution stations and filling stations have also developed to a certain extent. Liquefied petroleum gas storage and distribution stations and filling stations are specialized places for operating liquefied petroleum gas with functions such as storage, loading and unloading, filling, and distribution. The design of liquefied petroleum gas storage and distribution stations and filling stations follows the "Code for Design of Liquefied Petroleum Gas Supply Engineering" GB 51142-2015. However, when the ambient temperature is relatively high, the above-ground storage tanks in liquefied petroleum gas storage and distribution stations and filling stations are affected by the ambient temperature and the pressure rises relatively fast, and artificial pressure reduction or cooling is often required.

[0003] Currently, the main cooling method for storage tanks is to set up a canopy on the top of the storage tanks in liquefied petroleum gas storage and distribution stations and filling stations to reduce the exposure of the storage tanks to sunlight and thus cool down. Although this method effectively reduces the temperature rise of the storage tanks exposed to sunlight in high-temperature weather, it is not conducive to the dissipation of liquefied petroleum gas in case of leakage due to the installation of the canopy.

[0004] Therefore, it is necessary to develop a device that can effectively cool the liquefied petroleum gas storage tanks for the above problems. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a cooling device for liquefied petroleum gas tanks.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A cooling device for liquefied petroleum gas tanks includes a spray pipe and a support arm. The spray pipe is longitudinally designed and formed. Its top is the end section, which is provided with a water spray port, and its bottom is the front section, which is connected to a water delivery pipe; the end section of the spray pipe is designed as a curved pipe with a radian.

[0008] Preferably, the spray pipes can be symmetrically designed to form a spray pipe group.

[0009] Preferably, the two symmetrically arranged spray pipes in the spray pipe group are not connected to each other and are respectively arranged on both sides of the gas tank to be spray-cooled.

[0010] Preferably, the end section of the spray pipe is movably assembled with a support arm with a backing plate.

[0011] Preferably, the support arm is fixedly installed on the end section of the spray pipe through a rotatable fitting.

[0012] Preferably, a plurality of spray holes are provided at the water outlet spray port.

[0013] Preferably, a pressure gauge is installed at the front section of the spray pipe, and an electric stop valve and a drain pipe are provided between the spray pipe and the water conveyance pipeline.

[0014] Advantages of the present utility model:

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] The present utility model can equidistantly arrange multiple groups to cooperate with an air tank of a certain length for effective overall spray cooling. Moreover, the present utility model realizes remote switch control and timed spraying by setting an electric stop valve, thereby reducing the labor operation intensity, subtracting the cost of building a sunshade, and reducing the harmfulness that is not easily dissipated when leakage occurs. Brief Description of the Drawings

[0017] Figure 1 It is a schematic side view structure diagram of the present utility model.

[0018] Figure 2 It is a schematic working diagram of the present utility model for spraying.

[0019] Figure 3 It is Figure 1 a partially enlarged structure diagram of A in

[0020] Figure 4 It is a schematic top view structure diagram of the present utility model when multiple water outlet spray ports are provided. Detailed Description of the Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with / set with", "socket connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a liquefied petroleum gas tank cooling device, mainly composed of a spray pipe 1 and a support arm 3 with a gasket 2. The spray pipe 1 is longitudinally designed and formed. The purpose of this design is to ensure that the end section of the spray pipe 1 with a water spray port can extend to the top of the gas tank based on the shortest distance. Moreover, the end section of the spray pipe 1 is designed as a bent pipe with a curvature, so that it can better fit the gas tank with a cylindrical outer shape. In addition, a plurality of spray holes are provided at the water spray port to make the spraying more uniform and efficient during spraying. The bottom of the spray pipe 1 is the front section, which is connected to a water delivery pipe. It should be noted that a pressure gauge 4 is installed in the front section of the spray pipe 1, and an electric stop valve 5 and a drain pipe are provided between the spray pipe 1 and the water delivery pipe. Such a design can realize pressure monitoring and alarm, remote switch control, and timed spraying, thereby reducing the intensity of manual operation.

[0025] It can be further explained that the spray pipe 1 can be symmetrically designed to form a spray pipe group, but the two symmetrically designed spray pipes 1 in the group are not connected to each other. The first purpose is to ensure the pressure required for spraying, and the second purpose is to be able to be arranged on both sides of the gas tank that needs to be cooled by spraying, so as to spray evenly on the gas tank to the greatest extent and effectively cool the gas tank.

[0026] It can be explained that because the end section of the spray pipe 1 is designed as a bent pipe with a curvature and is easily bent based on gravity and its own mass, a support arm 3 with a backing plate 2 is movably assembled at the end section of the spray pipe 1. It can be rotated downward during work to support the spray pipe 1 on the gas tank, ensuring work efficiency and spraying uniformity, while avoiding the fatigue strength generated by long-term lack of support, which may cause the end section to deform or even break. When not in use, it can be rotated upward and folded for storage to facilitate the smooth placement of the gas tank into the spray pipe group when replacing the gas tank. Such a design can improve the service life to a certain extent.

[0027] In addition, refer to Figure 4, the end section of the spray pipe 1 of the present utility model can be designed to extend as a corridor on the left and right sides parallel to the gas tank, so as to form multiple spray water outlet ports, that is, one water delivery pipe corresponds to multiple water outlet ports, and each port is equipped with a support arm 3 with a backing plate 2, which can reduce costs while surrounding the gas tank with a certain length and further perform overall spray cooling. Based on Figure 4 The planning has also been calculated practically:

[0028] Calculated according to formula 7.2.1-1 of GB50219-2014, the head loss per unit length of the water delivery pipe is 0.003795856343 MPa / m. Calculated based on the 86.6 m of the most unfavorable spray pipe, the head loss of the water delivery pipe is 0.3287 MPa. If a fire pump is used to supply water to the present utility model, its head is 0.5 MPa. After calculation, the water pressure at the end of the most unfavorable spray pipe 1 is 0.1713 MPa. A plurality of spray holes with a diameter of ∅6 are evenly and equidistantly opened on each water outlet port. Taking the backing plate 2 in the middle of the gas tank as the demarcation point, the pipe hole spacing near the water delivery pipe is 300 mm, and the pipe hole spacing far from the water delivery pipe access point in the station is 200 mm. With the horizontal orientation towards the gas tank being 0°, and upwards being positive, the opening angles need to be 15° and 270°, so that the water sprayed out from the water outlet port can cover the top of the gas tank and can cover the entire outer surface of the storage tank from the top. Based on the remote group control, the corresponding spray pipe 1 can also be opened according to the position facing the sunny side, so that the cooling can be changed according to the environment and requirements, increasing the practicability and selectivity. In addition, when the pressure gauge 4 detects that the pressure of the gas tank reaches 1.4 MPa, it will give a feedback for alarm, and then interlock to open the spray pipe 1 corresponding to the pressure gauge of the gas tank to spray water for surface cooling of the storage tank, so as to achieve the work of cooling and depressurizing the storage tank. When the pressure gauge 4 detects that the pressure drops to 1.2 MPa, it will give a feedback signal to interlock and close the just-opened spray pipe 1.

[0029] It should be noted that in this article, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A liquefied petroleum gas tank cooling device, comprising a spray pipe (1) and a support arm (3), characterized in that, The spray pipe (1) is longitudinally designed and formed. Its top is the end section, which is provided with a water outlet spray port, and its bottom is the front section, which is connected to the water delivery pipe; the end section of the spray pipe (1) is designed as a curved pipe with a radian.

2. The temperature reduction device for a liquefied petroleum gas tank according to claim 1, characterized in that, The spray pipe (1) can be symmetrically designed to form a spray pipe group.

3. The temperature reduction device for liquefied petroleum gas tanks according to claim 2, characterized in that, The two symmetric spray pipes (1) in the spray pipe group are not connected to each other and are respectively arranged on both sides of the gas tank that needs to be spray-cooled.

4. A liquefied petroleum gas tank cooling device according to claim 1, characterized in that, A support arm (3) with a backing plate (2) is movably assembled at the end section of the spray pipe (1).

5. The temperature reduction device for liquefied petroleum gas tanks according to claim 4, wherein, The support arm (3) is fixedly installed on the end section of the spray pipe (1) through a rotatable fitting.

6. The cooling device for a liquefied petroleum gas tank according to claim 1, characterized in that, A plurality of spray holes are provided at the water outlet spray port.

7. A liquefied petroleum gas tank cooling device according to claim 1, characterized in that A pressure gauge (4) is installed at the front section of the spray pipe (1), and an electric stop valve (5) and a drain pipe are arranged between the spray pipe and the water delivery pipe.

Images