Gas purifying and discharging device for gas station

Abstract

The utility model relates to the technical field of gas purification and emission, and discloses a gas purification and emission device for a gas station, which comprises a gas station building body, two gas filling devices are fixedly mounted in the gas station building body, and a gas extraction mechanism is arranged in the gas station building body. According to the gas purifying and discharging device for the gas filling station, the gas pumping mechanism is arranged, after gas filling of the gas filling equipment is completed every time, a small gas pumping fan and a second gas pumping fan are controlled to be started through a touch screen controller in the gas filling equipment, and gas volatilized from the side face of the gas filling equipment is sucked into a wind chamber with the thickness far larger than that of the gas filling equipment; the LNG floating at the top of the air extraction box is sucked into the volatilized LNG through the air collection cover, so that most of the LNG is sucked into the air extraction box, filtered and purified by the PP polypropylene layer and the activated carbon layer and then exhausted by the air outlet plate, and the air extraction mechanism can extract the gas in a large range around the air entrapping equipment, so that the volatile gas is prevented from being accumulated, and the explosion danger is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas purification and emission technical field, concretely to a kind of gas station gas purification and emission device. BACKGROUND

[0002] Gas station is used when vehicle needs to supplement petroleum gas, petroleum gas exists in gas depot, is connected to gas machine by pipeline, is added to the air tank of vehicle by gas gun, gas station gas emission refers to the process that gas station in the operation process, waste gas generated in the gas filling process of liquefied petroleum gas or compressed natural gas and other fuels is discharged into the atmosphere, these waste gases mainly include volatile gas, its main component is methane, has greenhouse effect, has certain influence on environment, with the continuous establishment of gas station, various gas purification and emission devices appear, for example, a kind of gas station gas purification and emission device.

[0003] Through retrieval, patent number CN202223101427.X China utility model patent one kind of gas station gas purification and emission device, purification and emission ware include shell, shell one side top is equipped with air outlet, air outlet lower side is equipped with inclined air inlet, air inlet and air outlet are equipped with filter element box between, filter element box and shell are slidably connected, filter element box is equipped with filter layer inside, air inlet is equipped with third fan inside, air outlet one side is equipped with first fan, third fan air extraction and first fan air blowing form ventilation structure, gas station is arranged under rain shelter, the two support columns of rain shelter are supported on gas station, purification and emission ware are arranged on support column, gas station volatilized gas is purified in purification and emission ware, after purification, exhaust, can filter and impurity and purify to the volatile LNG gas, protect environment, device is convenient to install and dismount, whole structure is simple, convenient to use, although the device can filter and impurity and purify to the volatile LNG gas, protect environment, but the purification and emission ware of the device, only install on two support columns, suction port is only aimed at one direction extraction, cannot air suction purification to the air of larger range around gas filling equipment, lead to part of volatile LNG gas emission into environment, have explosion danger, therefore propose one kind of gas station gas purification and emission device that can extract the air of larger range around gas filling equipment, avoid volatile gas accumulation, reduce explosion danger. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a kind of gas station gas purification and emission device, with the advantages of being able to extract the air of larger range around gas filling equipment, avoid volatile gas accumulation, reduce explosion danger, solve the problem that the purification and emission ware of the device in patent number CN202223101427.X is only installed on two support columns, cannot air suction purification to the air around gas filling equipment, lead to part of volatile LNG gas emission into environment, have explosion danger.

[0005] In order to realize the above-mentioned can extract gas filling equipment four around a larger range of gas, avoid volatile gas accumulation, reduce the explosion danger, the utility model provides the following technical scheme: a gas station gas purification and exhaust device, including gas station building body, the inside fixed mounting of gas station building body two gas filling equipment, the inside of gas station building body is provided with suction mechanism;

[0006] The suction mechanism includes a purification box, a PP polypropylene layer, an activated carbon layer, a connecting cover, a fixed plate, a wind collecting cover, a connecting pipe and an air extraction box, the inside of the purification box is fixedly installed in the gas station building body, the inside of the purification box is provided with a PP polypropylene layer and an activated carbon layer, the bottom of the purification box is fixedly connected with the connecting cover, the bottom of the connecting cover is fixedly connected with the fixed plate, the bottom of the fixed plate is provided with the wind collecting cover, the bottom of the fixed plate is fixedly connected with two connecting pipes, and the bottom of the two connecting pipes is fixedly connected with the air extraction box.

[0007] Further, the top of the purification box is fixedly connected with an air outlet plate, air outlets are formed in the left and right sides of the air outlet plate, and rainproof plates matched with the air outlets are arranged on the left and right sides of the air outlet plate.

[0008] Further, the outside of the two gas filling equipment is provided with an odor sensor, and the two odor sensors are located at the top of the two gas filling equipment respectively.

[0009] Further, the inside of the two air extraction boxes is provided with six small air extraction fans, and the outside of the two air extraction boxes is provided with filter screens one.

[0010] Further, the inside of the wind collecting cover is provided with three large air extraction fans, and the bottom of the wind collecting cover is provided with a filter screen two.

[0011] Further, the outside of the two gas filling equipment is provided with a touch screen controller, and the two touch screen controllers are electrically connected with the six small air extraction fans and the three large air extraction fans through wires.

[0012] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0013] The gas station gas purification and exhaust device is provided with the suction mechanism, after the gas filling equipment is filled with gas each time, the small air extraction fan and the air extraction fan two are controlled to be opened through the touch screen controller in the gas filling equipment, the air extraction box far exceeding the thickness of the gas filling equipment sucks the gas volatilized from the side of the gas filling equipment into the air extraction box, the LNG gas floating on the top of the air extraction box is sucked into the wind collecting cover, most of the gas is sucked in, then the PP polypropylene layer and the activated carbon layer filter and purify, and then the air outlet plate discharges, the suction mechanism can extract the gas in a larger range around the gas filling equipment, avoid volatile gas accumulation, and reduce the explosion danger. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure perspective view of the utility model;

[0015] Figure 2 It is a structure front view of the utility model;

[0016] Figure 3 It is a structure right view of the utility model;

[0017] Figure 4 It is a structure partial perspective view of the utility model.

[0018] In the drawing: 1, gas station building body; 2, gas filling equipment; 3, air extraction mechanism; 301, purification box; 302, PP polypropylene layer; 303, activated carbon layer; 304, connecting cover; 305, fixed plate; 306, wind collecting cover; 307, connecting pipe; 308, air extraction box; 4, air outlet plate; 5, rain shield; 6, odor sensor; 7, small air extraction fan; 8, filter screen one; 9, large air extraction fan; 10, filter screen two; 11, touch screen controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-4 The gas station gas purification and discharge device in the embodiment comprises a gas station building body 1, two gas filling equipment 2 are fixedly installed inside the gas station building body 1, and an air extraction mechanism 3 is arranged inside the gas station building body 1.

[0021] The air extraction mechanism 3 comprises a purification box 301, a PP polypropylene layer 302, an activated carbon layer 303, a connecting cover 304, a fixed plate 305, a wind collecting cover 306, a connecting pipe 307 and an air extraction box 308, the purification box 301 is fixedly installed inside the gas station building body 1, the PP polypropylene layer 302 and the activated carbon layer 303 are arranged inside the purification box 301, the connecting cover 304 is fixedly connected to the bottom of the purification box 301, the fixed plate 305 is fixedly connected to the bottom of the connecting cover 304, the wind collecting cover 306 is arranged at the bottom of the fixed plate 305, the two connecting pipes 307 are fixedly connected to the bottom of the fixed plate 305, and the air extraction box 308 is fixedly connected to the bottom of each connecting pipe 307.

[0022] In the case implementation, the top of the purification box 301 is fixedly connected with an air outlet plate 4, air outlets are formed in the left and right sides of the air outlet plate 4, rainproof plates 5 matched with the air outlets are arranged on the left and right sides of the air outlet plate 4, and a ventilation groove is arranged in the air outlet plate 4. The purification box 301 is discharged through the ventilation groove to the air outlet.

[0023] In the case implementation, odor sensors 6 are arranged outside the two gas filling devices 2, and the two odor sensors 6 are respectively arranged at the top of the two gas filling devices 2. By arranging the two odor sensors 6, the volatile gas intensity can be detected at any time.

[0024] In the case implementation, six small air suction fans 7 are arranged in the two air suction boxes 308, and filter screens one 8 are arranged outside the two air suction boxes 308. By arranging the six small air suction fans 7, the suction force can be increased to suck the volatile gas. The thickness of the two air suction boxes 308 is much greater than that of the two gas filling devices 2, so that the gas emitted from the side can also be sucked away. By arranging the filter screens one 8, other sundries can be prevented from being sucked in.

[0025] In the case implementation, an air outlet groove is formed in the fixed plate 305, and the air suction box 308 is connected with the purification box 301 through the connecting pipe 307 and the air outlet groove.

[0026] In the case implementation, the two touch screen controllers 11 are respectively electrically connected with all the electronic elements in the patent through wires, so that all the electronic elements in the patent can be controlled through any one touch screen controller 11.

[0027] In the implementation, the following steps are performed:

[0028] 1) After the gas filling device 2 is filled with gas each time, the small air suction fan 7 and the air suction fan two 9 are turned on by the touch screen controller 11 in the gas filling device 2.

[0029] 2) Then the air suction box 308 with a thickness much greater than that of the gas filling device 2 sucks the gas emitted from the side of the gas filling device 2 into the air suction box 308, and the LNG gas floating on the top of the air suction box 308;

[0030] 3) Then the air suction fan two 9 is turned on by the touch screen controller 11 in the gas filling device 2, and the air suction fan two 9 sucks the volatile LNG gas into the air suction box 308 through the air suction fan one 10 and the air suction fan two 9.

[0031] 4) Finally, the gas is filtered and purified through the PP polypropylene layer 302 and the activated carbon layer 303, and then discharged through the air outlet plate 4.

[0032] In summary, the gas purification and exhaust device of the gas station, by setting the air extraction mechanism 3, after each gas filling equipment 2 finishes filling gas, the small air extraction fan 7 and the air extraction fan 2 are controlled to open by the touch screen controller 11 inside the gas filling equipment 2, the gas volatilized from the side of the gas filling equipment 2 is sucked into the air extraction box 308 through the air extraction box 308 which is much thicker than the gas filling equipment 2, the LNG gas floating on the top of the air extraction box 308 is sucked into the volatilized LNG gas through the air collection cover 306, so that most of the gas is sucked in, then the PP polypropylene layer 302 and the activated carbon layer 303 filter and purify, and then the air outlet plate 4 exhausts, the air extraction mechanism 3 can surround the gas filling equipment 2 around, and the air extraction mechanism 3 can purify the air around the gas filling equipment 2 after gas filling, and reduce the explosion danger.

[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas purification and emission device for a gas filling station, comprising the gas filling station building body (1), characterized in that: The gas station building body (1) has two gas filling devices (2) fixedly installed inside, and the gas station building body (1) has an air extraction mechanism (3) installed inside; The exhaust mechanism (3) includes a purification box (301), a PP polypropylene layer (302), an activated carbon layer (303), a connecting cover (304), a fixing plate (305), an air collecting cover (306), a connecting pipe (307), and an exhaust box (308). The purification box (301) is fixedly installed inside the gas station building body (1). The purification box (301) is provided with a PP polypropylene layer (302) and an activated carbon layer (303). The bottom of the purification box (301) is fixedly connected to the connecting cover (304). The bottom of the connecting cover (304) is fixedly connected to the fixing plate (305). The bottom of the fixing plate (305) is provided with an air collecting cover (306). The bottom of the fixing plate (305) is fixedly connected to two connecting pipes (307). The bottom of each of the two connecting pipes (307) is fixedly connected to an exhaust box (308).

2. The gas purification and emission device for a gas filling station according to claim 1, characterized in that: The top of the purification box (301) is fixedly connected to an air outlet plate (4), and air outlets are provided on both the left and right sides of the air outlet plate (4). Rain shields (5) that are compatible with the air outlets are provided on both the left and right sides of the air outlet plate (4).

3. The gas purification and emission device for a gas filling station according to claim 1, characterized in that: Odor sensors (6) are provided on the outside of both of the gas filling devices (2), and the two odor sensors (6) are located on the top of the two gas filling devices (2).

4. The gas purification and emission device for a gas filling station according to claim 1, characterized in that: The two exhaust boxes (308) are each equipped with six small exhaust fans (7), and the two exhaust boxes (308) are each equipped with a filter screen (8).

5. The gas purification and emission device for a gas filling station according to claim 1, characterized in that: The air collecting hood (306) is equipped with three large exhaust fans (9) inside, and a filter screen (10) is provided at the bottom of the air collecting hood (306).

6. The gas purification and emission device for a gas filling station according to claim 1, characterized in that: Both of the gas filling devices (2) are equipped with a touch screen controller (11) on the outside. The two touch screen controllers (11) are electrically connected to the six small exhaust fans (7) and the three large exhaust fans (9) via wires.

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