Explosion-proof emptying device for gas-liquid separation tank

Abstract

The utility model discloses an explosion-proof emptying device for a gas-liquid separation tank, which belongs to the field of explosion-proof emptying devices and structurally comprises a tank body and an explosion-proof device, and the explosion-proof device comprises an air inlet hole, a filter plate, a shell, an auxiliary pressure relief head, a first elastic piece, a top cover and an inner groove. The auxiliary pressure relief head comprises a side valve body, an assembly head, a confluence groove, a piston, an auxiliary air hole, a second elastic piece, a sliding groove, an exhaust rod and an exhaust hole, by arranging multiple pressure relief structures, the tank body can achieve the multi-stage pressure relief function on the basis of automatic opening at high pressure and automatic closing at low pressure, the problem that pressure cannot be relieved due to faults and the like caused by single pressure relief is solved, and the service life of the tank body is prolonged. Better pressure relief adjustability can be achieved through the multi-stage auxiliary pressure relief head according to requirements, in a system with frequent pressure fluctuation, the pressure relief amount can be dynamically adjusted, a better pressure relief strategy can be achieved, the conditions of abrasion and the like caused by single pressure relief starting are reduced, pressure relief in more directions can be conducted, inconvenience caused by single-direction pressure relief is reduced, and the situation that pressure relief is affected by environmental factors such as the wind direction is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of explosion -proof emptying device, especially relates to a gas -liquid separation tank explosion -proof emptying device. BACKGROUND

[0002] When gas -liquid separation tank is used, in order to carry out the heat reutilization in gas -liquid, heat exchange use is often carried out to the temperature in the separation tank, but the temperature in the tank is also not same at different time, when the temperature in the tank is higher, the tank body overpressure damage condition is easy to appear, in order to avoid this situation, the pressure relief port is often set on the tank body, but in order to prevent heat from the pressure relief port place and export, lead to the waste of heat, especially when the temperature in the tank is lower, influence heat exchange utilization effect, still assemble the explosion -proof emptying device at the pressure relief port and carry out pressure relief, but the prior art when using, the traditional explosion -proof emptying device only realizes by simple emptying valve or check valve etc. UTILITARY MODEL CONTENTS

[0003] (One) the technical problem to be solved

[0004] In order to overcome the prior art deficiency, present a kind of gas -liquid separation tank explosion -proof emptying device, to solve the prior art when using, traditional explosion -proof emptying device only realizes by simple emptying valve or check valve etc.

[0005] (Two) technical scheme

[0006] The utility model discloses a kind of gas -liquid separation tank explosion -proof emptying device, its structure includes tank body and explosion -proof device;

[0007] The explosion -proof device includes air inlet hole, filter plate, shell, auxiliary pressure relief head, first elastic member, top cover and inner groove, the shell is fixed on tank body, the shell interior is equipped with inner groove, the inner groove top is penetrated shell, the inner groove bottom is penetrated shell by air inlet hole, the air inlet hole is covered by filter plate, the shell top is connected with top cover by first elastic member, the first elastic member is used to make top cover adhere to shell top, the shell side end surface is equipped with auxiliary pressure relief head;

[0008] The side valve body is locked on the assembling head, the side valve body is adjacent to the shell side and is provided with a sliding slot, the sliding slot also penetrates the shell and the assembling head and communicates with the inner groove, the piston is assembled in the sliding slot, the piston is connected with the side valve body through the second elastic member away from the sliding slot, the piston is also assembled with the exhaust rod away from the sliding slot, the exhaust rod penetrates the side valve body away from the piston, the exhaust rod is provided with the exhaust groove inside, the exhaust rod is provided with the exhaust hole away from the piston, the exhaust hole communicates with the exhaust groove, the exhaust hole penetrates the piston and communicates with the exhaust groove and the inner groove.

[0009] Further, the bottom of the top cover is tightly connected with the top of the shell.

[0010] Further, the first elastic member is a tension spring, and the second elastic member is a compression spring.

[0011] Further, the exhaust hole is provided with a plurality of exhaust holes, the exhaust holes are not communicated with the sliding slot, and the exhaust holes are arranged on the side end face and the bottom of the exhaust rod, so that the exhaust holes can be better cleaned when high-pressure exhaust or low-pressure exhaust, and the situation that sundries or rainwater falls and accumulates in the exhaust hole and enters the tank is avoided.

[0012] Further, the auxiliary pressure relief head further comprises a first assembling rod and a first pin rod, one end of the first assembling rod is fixed to the exhaust rod adjacent to the piston, the other end of the first assembling rod penetrates the piston, and the first pin rod is inserted into the first assembling rod for assembly limiting of the piston, so that when the pressure in the tank is too high, the piston can break the first pin rod to separate from the exhaust rod, so that the exhaust rod can be pushed out of the side valve body by the pressure to increase the pressure relief amount.

[0013] Further, the first pin rod can withstand a force higher than the opening force of the top cover, and the first pin rod can withstand a force lower than the elastic limit of the first elastic member.

[0014] Further, the explosion-proof device further comprises a second assembling rod, a blocking rod, a connecting rod, a limiting plate and a second pin rod, the connecting rod is fixed to the middle part of the bottom end of the top cover, the second assembling rod is fixed to the bottom of the connecting rod, the second assembling rod penetrates the limiting plate at the bottom, the second pin rod is inserted into the second assembling rod for assembly limiting of the limiting plate, one end of the blocking rod is fixed to the piston, and the other end of the blocking rod is located between the limiting plate and the top cover, so that the auxiliary pressure relief head is preferentially opened, and when the instantaneous pressure increases to cause the auxiliary pressure relief head to be unable to be opened in time, the limiting plate can break the second pin rod to separate from the connecting rod, so that the top cover can be opened in time.

[0015] Further, the distance between the blocking rod and the top cover is less than the movable distance of the piston in the sliding slot.

[0016] Further, the minimum elastic force of the second elastic member is greater than or equal to the maximum elastic force of the first elastic member.

[0017] Further, the filter plate is used to prevent the first pin rod and the second pin rod from entering the air inlet hole after being broken.

[0018] (III) Advantages

[0019] One of the above technical solutions has the following advantages or beneficial effects:

[0020] 1) The multiple relief structure of the vice relief head in combination with the top cover relief enables the tank body to realize multi-stage relief function on the basis of automatic opening at high pressure and automatic closing at low pressure, avoids the problem of unable to relieve pressure due to failure of single relief, and can set different number and pressure of vice relief heads according to requirements, realizes better relief adjustment, can dynamically adjust the relief amount in a system with frequent pressure fluctuations, realizes better relief strategy, and reduces wear and tear of single relief opening.

[0021] 2) The vice relief head is provided in a telescopic manner, and the vice relief head is provided in a side opening manner, which can relieve pressure in more directions, reduce the inconvenience of single direction relief, and reduce the influence of environmental factors such as wind direction on relief. BRIEF DESCRIPTION OF DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, with reference to the accompanying drawings:

[0023] Figure 1 Fig. 1 is a structural schematic view of a gas-liquid separation tank explosion-proof emptying device according to the present application;

[0024] Figure 2 Fig. 2 is a cross-sectional structural schematic view of an explosion-proof device according to an embodiment of the present application;

[0025] Figure 3 Fig. 3 is a cross-sectional structural schematic view of explosion-proof devices according to embodiments two, three and four of the present application;

[0026] Figure 4 Fig. 4 is a structural schematic view of a vice relief head according to the present application; Figure 3 Fig. 5 is an enlarged structural schematic view of A in Fig. 4;

[0027] Figure 5 Fig. 6 is a structural schematic view of a side view of the vice relief head according to the present application;

[0028] As shown in the figure: tank body - 1, explosion-proof device - 2, air inlet hole - 21, filter plate - 22, shell - 23, auxiliary pressure relief head - 24, first elastic member - 25, top cover - 26, inner groove - 27, second assembly rod - 28, stop rod - 29, connecting rod - 210, limiting plate - 211, second pin rod - 212, side valve body - 2401, assembly head - 2402, flow groove - 2403, piston - 2404, auxiliary air hole - 2405, second elastic member - 2406, sliding groove - 2407, exhaust rod - 2408, exhaust hole - 2409, first assembly rod - 2410, first pin rod - 2411. DETAILED DESCRIPTION

[0029] The utility model makes further detailed description in combination with examples, but the implementation mode of the utility model is not limited to this.

[0030] Example one

[0031] The utility model provides a kind of gas-liquid separation tank explosion-proof emptying device: its structure includes tank body 1 and explosion-proof device 2;

[0032] The explosion-proof device 2 includes air inlet hole 21, filter plate 22, shell 23, auxiliary pressure relief head 24, first elastic member 25, top cover 26 and inner groove 27, the shell 23 is fixed on tank body 1, the shell 23 inside is equipped with inner groove 27, the inner groove 27 top is through shell 23, the inner groove 27 bottom is through shell 23 by air inlet hole 21, air inlet hole 21 is covered by filter plate 22, the top of shell 23 is connected with top cover 26 by first elastic member 25, the first elastic member 25 is used to make top cover 26 adhere to the top of shell 23, the side end surface of shell 23 is equipped with auxiliary pressure relief head 24;

[0033] The auxiliary pressure relief head 24 comprises a side valve body 2401, an assembly head 2402, a converging groove 2403, a piston 2404, an auxiliary air hole 2405, a second elastic member 2406, a sliding groove 2407, an exhaust rod 2408 and an exhaust hole 2409. The assembly head 2402 is arranged at the side end surface of the shell 23, the side valve body 2401 is connected to the assembly head 2402, the side valve body 2401 is adjacent to the side of the shell 23 and is provided with the sliding groove 2407, the sliding groove 2407 penetrates the shell 23 and the assembly head 2402 and communicates with the inner groove 27, the piston 2404 is assembled in the sliding groove 2407, the piston 2404 is connected to the side valve body 2401 through the second elastic member 2406 away from the sliding groove 2407, the piston 2404 is further provided with the exhaust rod 2408 away from the sliding groove 2407, the exhaust rod 2408 penetrates the side valve body 2401 away from the piston 2404, the exhaust rod 2408 is provided with the converging groove 2403 inside, the exhaust rod 2408 is provided with the exhaust hole 2409 away from the piston 2404, the exhaust hole 2409 communicates with the converging groove 2403, and the auxiliary air hole 2405 penetrates the piston 2404 and communicates the converging groove 2403 and the inner groove 27.

[0034] The top of the top cover 26 is in a convex arc shape, which is convenient for the discharge of rainwater and the like, the side edge of the top cover 26 protrudes from the side of the side valve body 2401 away from the shell 23, and the explosion-proof device 2 is protected, so that the falling objects or rainwater falling and adhering on the auxiliary pressure relief head 24 are reduced.

[0035] The bottom of the top cover 26 is in close connection with the top of the shell 23.

[0036] The first elastic member 25 is a tensile spring, and the second elastic member 2406 is a compression spring.

[0037] The minimum elastic force of the second elastic member 2406 is greater than or equal to the maximum elastic force of the first elastic member 25.

[0038] When the pressure in the tank 1 is too high, the pressure will first push the piston 2404 of the secondary pressure relief head 24 to compress the second elastic member 2406 to move, so that the exhaust rod 2408 connected with the piston 2404 is pushed to follow the movement until the exhaust hole 2409 of the exhaust rod 2408 is out of the range of the side valve body 2401 and communicates with the outside, at this time the tank 1 will be relieved through the sequence of the air inlet hole 21→the inner groove 27→the secondary air hole 2405→the converging groove 2403→the exhaust hole 2409, and as the pressure increases, a plurality of secondary pressure relief heads 24 and the exhaust hole 2409 of the secondary pressure relief head 24 can be opened step by step, and when the secondary pressure relief head 24 cannot meet the pressure relief, the top cover 26 can be pushed to open for pressure relief, avoiding the problem that a single pressure relief cannot be relieved due to failure, etc., and different numbers and pressures of the secondary pressure relief head 24 can be set according to the demand to achieve better pressure relief adjustment, in the system with frequent pressure fluctuations, the pressure relief amount can be dynamically adjusted to achieve a better pressure relief strategy, reduce the wear and tear of a single pressure relief opening, etc., at the same time, the secondary pressure relief head 24 adopts a telescopic exhaust pressure relief structure, and the secondary pressure relief head 24 is arranged in a side opening type on the side of the shell 23, which can relieve pressure in more directions, reduce the inconvenience of single-direction pressure relief, and reduce the influence of environmental factors such as wind direction on pressure relief.

[0039] Embodiment Two

[0040] In another embodiment, the exhaust hole 2409 is provided with a plurality of exhaust holes 2409, the exhaust hole 2409 is not communicated with the chute 2407, and the exhaust hole 2409 is arranged on the side end face and the bottom of the exhaust rod 2408, so that the air hole can be better cleaned regardless of high or low pressure exhaust, and the situation that sundries or rainwater falls and accumulates in the air hole and enters the tank is avoided.

[0041] Embodiment Three

[0042] In another embodiment, the secondary pressure relief head 24 further comprises a first assembly rod 2410 and a first pin rod 2411, one end of the first assembly rod 2410 is fixed to the exhaust rod 2408 adjacent to the piston 2404, the other end of the first assembly rod 2410 penetrates the piston 2404, and the first pin rod 2411 is inserted into the first assembly rod 2410 for assembly limiting of the piston 2404.

[0043] Among them, the first pin rod 2411 can withstand a force higher than the opening force of the top cover 26, and the first pin rod 2411 can withstand a force lower than the elastic limit of the first elastic member 25.

[0044] When the pressure in the tank is too high, the piston can break the first pin rod 2411 to disconnect the connection with the exhaust rod 2408, so that the exhaust rod 2408 can be pushed out of the side valve body 2401 by the pressure to increase the pressure relief amount.

[0045] Embodiment Four

[0046] In another embodiment, the explosion-proof device 2 further comprises a second assembling rod 28, a blocking rod 29, a connecting rod 210, a limiting plate 211 and a second pin rod 212, the connecting rod 210 is fixed to the middle of the bottom end of the top cover 26, the second assembling rod 28 is fixed to the bottom of the connecting rod 210, the second assembling rod 28 penetrates through the limiting plate 211, the second pin rod 212 is inserted into the second assembling rod 28 for assembling limiting of the limiting plate 211, one end of the blocking rod 29 is fixed to the piston 2404, and the other end of the blocking rod 29 is located between the limiting plate 211 and the top cover 26.

[0047] The distance between the blocking rod 29 and the top cover 26 is less than the movable distance of the piston 2404 in the sliding groove 2407.

[0048] The filter plate 22 is used for preventing the first pin rod 2411 and the second pin rod 212 from entering the air inlet hole 21 after being broken.

[0049] When the instantaneous pressure increases and causes the auxiliary pressure relief head 24 to fail to open in time, the limiting plate 211 can break the second pin rod 212 to separate from the connecting rod 210, so that the top cover 26 can open in time.

[0050] In the description of the utility model, it should be explained that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0051] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply belong to the common knowledge in the art, and the utility model is mainly used for protecting mechanical devices, so the control mode and wiring arrangement of the utility model will not be explained in detail.

[0052] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0053] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An explosion-proof venting device for a gas-liquid separation tank, comprising a tank body (1) and an explosion-proof device (2). characterized in that The explosion-proof device (2) comprises an air inlet hole (21), a filter plate (22), a shell (23), a secondary pressure relief head (24), a first elastic member (25), a top cover (26) and an inner groove (27). The shell (23) is fixed to the tank body (1), and the inner groove (27) is arranged in the shell (23). The top of the inner groove (27) penetrates the shell (23), and the bottom of the inner groove (27) penetrates the shell (23) through the air inlet hole (21). The air inlet hole (21) is covered by the filter plate (22). The top of the shell (23) is connected with the top cover (26) through the first elastic member (25), and the first elastic member (25) is used to make the top cover (26) fit the top of the shell (23). The side end face of the shell (23) is equipped with the secondary pressure relief head (24). The secondary pressure relief head (24) comprises a side valve body (2401), an assembly head (2402), a converging groove (2403), a piston (2404), a secondary air hole (2405), a second elastic member (2406), a sliding groove (2407), an exhaust rod (2408) and an exhaust hole (2409). The side end face of the shell (23) is equipped with the assembly head (2402), and the side valve body (2401) is locked to the assembly head (2402). The side valve body (2401) is adjacent to the side of the shell (23) and is equipped with the sliding groove (2407). The sliding groove (2407) penetrates the shell (23) and the assembly head (2402) and communicates with the inner groove (27). The piston (2404) is assembled in the sliding groove (2407). The piston (2404) is connected with the side valve body (2401) through the second elastic member (2406) away from the side of the sliding groove (2407). The piston (2404) is also equipped with the exhaust rod (2408) away from the side of the sliding groove (2407). The exhaust rod (2408) penetrates the side valve body (2401) away from the piston (2404). The exhaust rod (2408) is equipped with the converging groove (2403) inside. The exhaust rod (2408) is equipped with the exhaust hole (2409) away from the piston (2404). The exhaust hole (2409) communicates with the converging groove (2403). The secondary air hole (2405) penetrates the piston (2404) to communicate the converging groove (2403) and the inner groove (27).

2. The explosion relief venting device for a gas-liquid separation tank according to claim 1, characterized in that: The bottom of the top cover (26) is in close connection with the top of the shell (23).

3. The explosion relief venting device of a gas-liquid separation tank according to claim 1, characterized in that: The first elastic member (25) is a tension spring, and the second elastic member (2406) is a compression spring.

4. The explosion relief venting device of a gas-liquid separation tank according to claim 1, characterized in that: The exhaust hole (2409) is provided with a plurality of exhaust holes (2409). The exhaust holes (2409) are not communicated with the sliding groove (2407), and the exhaust holes (2409) are arranged on the side end face and the bottom of the exhaust rod (2408).

5. The explosion relief venting device of a gas-liquid separation tank according to claim 1, characterized in that: The auxiliary pressure relief head (24) further comprises a first assembly rod (2410) and a first pin rod (2411), one end of the first assembly rod (2410) is fixed to the exhaust rod (2408) adjacent to the side of the piston (2404), the other end of the first assembly rod (2410) penetrates the piston (2404), and the first pin rod (2411) is inserted into the first assembly rod (2410) for assembly limiting of the piston (2404).

6. The explosion relief venting device of a gas-liquid separation tank according to claim 5, characterized in that: The first pin rod (2411) can withstand a force higher than the opening force of the top cover (26) and lower than the elastic limit of the first elastic member (25).

7. The explosion relief venting device of a gas-liquid separation tank according to claim 1, characterized in that: The explosion-proof device (2) further comprises a second assembly rod (28), a blocking rod (29), a connecting rod (210), a limiting plate (211) and a second pin rod (212), the connecting rod (210) is fixed to the middle of the bottom end of the top cover (26), the second assembly rod (28) is fixed to the bottom of the connecting rod (210), the second assembly rod (28) penetrates the limiting plate (211), the second pin rod (212) is inserted into the second assembly rod (28) for assembly limiting of the limiting plate (211), one end of the blocking rod (29) is fixed to the piston (2404), and the other end of the blocking rod (29) is located between the limiting plate (211) and the top cover (26).

8. The explosion relief venting device of a gas-liquid separation tank according to claim 7, characterized in that: The distance between the blocking rod (29) and the limiting plate (211) and the top cover (26) is less than the movable distance of the piston (2404) in the sliding groove (2407).

9. The explosion relief venting device of a gas-liquid separation tank according to claim 1, characterized in that: The minimum elastic force of the second elastic member (2406) is greater than or equal to the maximum elastic force of the first elastic member (25).

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