Novel heatable breather valve

Abstract

The utility model discloses a novel heatable breather valve which is applied to the field of valve body equipment and solves the technical problem that the working performance of an existing breather valve body is unstable due to the fact that the existing breather valve body is prone to bonding and icing under the extremely cold low-temperature and heavy oil conditions. According to the technical scheme, the heating device is characterized by comprising a valve body module, a first heating module and a second heating module, the first heating module and the second heating module are arranged on the side portion of the valve body module, the first heating module is a fully-closed jacket cavity block welded and fixed to the side wall of the valve body module, and the second heating module is a double-layer snakelike heat conduction pipe; by means of the multi-module combined layout design of the totally-closed jacket cavity block and the double-layer snakelike heat conduction pipe, the technical effect that the breather valve body can achieve the stable and efficient auxiliary heating effect under the environment of low temperature, heavy oil and the like is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve body equipment field, especially a novel heating formula breathing valve. BACKGROUND

[0002] Breathing valve is a kind of valve that ensures the space of storage tank to be isolated from atmosphere within certain pressure range, and be communicated with atmosphere (breath) when exceeding or being lower than this pressure range, its function is to prevent the damage of storage tank due to overpressure or vacuum, and simultaneously can reduce the evaporation loss of liquid storage.In actual use process, especially heavy oil storage tank body and northern area, when meeting low temperature environmental conditions, the internal or surrounding of breathing valve at the top of oil storage tank is prone to adhesion or icing phenomenon due to too low temperature or too large oil viscosity, resulting in that the valve cannot be normally opened and closed, so it needs to realize efficient heating to guarantee the normal work of valve. SUMMARY

[0003] The utility model aims at providing a novel heating formula breathing valve, and its advantage is that the stable and efficient auxiliary heating effect of breathing valve body can be realized.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a novel heating formula breathing valve, including valve body module, the middle part of valve body module is equipped with valve cavity, the bottom of valve cavity is equipped with through slot, the top of valve body module is equipped with valve cover, the inside of valve cavity is equipped with valve core block, the side of valve body module and valve core block are equipped with air inlet cavity block, the bottom of valve core block is equipped with expiration valve seat, the top of valve core block is equipped with inspiration valve seat, the side of valve body module outside valve cavity is also equipped with heating module, heating module includes heating module one and heating module two, heating module one is full-closed jacket cavity block welded fixed with the side wall of valve body module, the side of full-closed jacket cavity block is equipped with steam heat source injection port, the steam heat source injection port is connected with connecting pipe, the end of connecting pipe is equipped with flange plate, the inner wall of full-closed jacket cavity block is equipped with dredging hole, heating module two is double-layer serpentine heat pipe, the inner wall of one end of double-layer serpentine heat pipe close to through slot at the bottom of valve cavity is equipped with dredging hole, one end of double-layer serpentine heat pipe is communicated with dredging hole, the cavity wall of valve cavity is also equipped with heat source outlet, the end of double-layer serpentine heat pipe away from the end communicated with full-closed jacket cavity block is communicated with heat source outlet.

[0005] Further, the dredging hole is arranged on the cavity wall of the bottom of the full-closed jacket cavity block away from the side where the steam heat source injection port is arranged.

[0006] Further, the heat source outlet is arranged below the vertical direction of the double-layer serpentine heat pipe.

[0007] Further, the end of the air inlet cavity block away from the valve core block is also equipped with a fire barrier.

[0008] Further, the rainproof cover is arranged at the end of the air exchange cavity block away from the valve core block.

[0009] Further, the arc-shaped contact surface block is arranged on the side wall of the fully-closed jacket cavity block connected with the valve cavity.

[0010] Further, the one-way pressure valve block is arranged in the dredging hole.

[0011] Further, the temperature of the steam injected through the steam heat source injection inlet is 120-140 DEG C.

[0012] According to the utility model, the following beneficial effects are achieved:

[0013] Through the arrangement of the heating module, controllable temperature adjustment of the air inflow and outflow in the valve cavity is realized, a large amount of steam heat source is input through the steam heat source injection inlet, and the overall environment of the valve cavity where the valve core is located is continuously and stably adjusted to meet the appropriate working temperature condition. Meanwhile, the multilayer winding of the double-layer serpentine heat conduction pipe directly realizes the direct temperature rising of the air inflow and outflow in the through slot, realizes a stable and efficient temperature rising process, and prevents the valve core block, the air inlet valve seat and the air outlet valve seat at the top of the tank body from being stuck and frozen due to low temperature, and guarantees the working stability and reliability of the breathing valve during the injection and discharge of the storage medium in the tank body under low temperature.

[0014] The heating mode in the breathing valve body adopts air heating instead of direct heating, which effectively reduces the phenomenon that the soft sealing structure of the valve core block is invalid due to local high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a main view structure sectional view of the breathing valve in the embodiment;

[0016] Figure 2 is a partial sectional view in the embodiment;

[0017] Figure 3 is Figure 2 A-A direction sectional view in the embodiment.

[0018] Fig. 1 is a valve body module; 2 is a valve cavity; 3 is a through slot; 4 is a valve cover; 5 is a valve core block; 6 is an air exchange cavity block; 7 is an air outlet valve seat; 8 is an air inlet valve seat; 9 is a rainproof cover; 10 is a fully-closed jacket cavity block; 11 is a double-layer serpentine heat conduction pipe; 12 is a steam heat source injection inlet; 13 is a connecting pipe; 14 is a flange plate block; 15 is a dredging hole; 16 is a heat source outlet; 17 is a fire barrier; 19 is an arc-shaped contact surface block; 20 is a one-way pressure valve block. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example: A novel heatable breather valve, such as Figure 1 As shown, the system includes a valve body module 1, a valve chamber 2 in the middle of the valve body module 1, and a through slot 3 at the bottom of the valve chamber 2 for connecting and fixing to the pipe opening of the petrochemical tank. A valve cover 4 is located at the top of the valve body module 1, a valve core block 5 is located inside the valve chamber 2, and an inlet / exchange chamber block 6 is located between the side of the valve body module 1 and the valve core block 5. An exhalation valve seat 7 is located at the bottom of the valve core block 5, and an inhalation valve seat 8 is located at the top of the valve core block 5. When the pressure inside the tank increases due to continuous injection of the stored medium, the exhalation valve seat 7 opens, and airflow is discharged through the inlet / exchange chamber block 6, thus relieving pressure. When the stored medium is continuously output from the tank, the pressure inside the tank drops sharply. At this time, the inhalation valve seat 8 in the breather valve operates, opening, and external airflow is input through the inlet / exchange chamber block 6 to balance the pressure inside the storage tank, maintaining a balance between the internal and external pressure states of the petrochemical tank.

[0021] The end of the air inlet and outlet chamber block 6 away from the valve core block 5 is also equipped with a rain cover 9 and a flame arrestor 17. The rain cover 9 and the other components effectively ensure the purity of the airflow in and out of the valve chamber 2, preventing rainwater and impurities from entering the tank and affecting the quality of the stored medium. The flame arrestor 17 can effectively isolate and block the spread of fire between the flammable medium stored in the tank and the outside world, ensuring the safety performance of the tank.

[0022] Considering that in extremely cold regions and heavy oil storage tanks where temperature requirements are low, the valve disc in the exhalation valve seat 7 and the inhalation valve seat 8 may easily stick to the valve core block 5 and freeze, affecting the normal inhalation and exhalation operation of the breathing valve, a heating module is also provided on the side of the valve body module 1 located outside the valve cavity 2. The heating module includes heating module one and heating module two. Multiple modules can be flexibly combined and assembled according to the actual equipment usage environment conditions to meet the breathing valve heating function in different low temperature environments.

[0023] Heating module one is a fully enclosed jacketed cavity block 10 fixed to the side wall of valve body module 1, and heating module two is a double-layer serpentine heat conduction pipe 11. The combination of heating module one and heating module two can effectively achieve stable heating and temperature control of the inside of valve cavity 2 under extreme and complex working conditions such as low temperature.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the side of the full-closed jacket cavity block 10 is provided with a steam heat source injection port 12, which is connected with a connecting pipe 13, and the end of the connecting pipe 13 is provided with a flange block 14. When the temperature is too low or other conditions occur, and the temperature in the valve cavity 2 needs to be raised, the user can realize the continuous input of the steam heat source by connecting the flange block 14 on the connecting pipe 13, and the temperature of the steam injected into the steam heat source injection port 12 is controlled at 120-140 degrees Celsius.

[0025] With the heat exchange process between the steam heat source and the valve cavity 2, the temperature of the working environment of the valve core block 5 in the valve cavity 2 is stably raised. The side wall of the side of the full-closed jacket cavity block 10 connected with the valve cavity 2 is provided with an arc-shaped contact surface block 19, which further increases the heat exchange area and improves the efficiency and rapid response of the temperature rising process in the valve cavity.

[0026] In order to further improve the uniformity and gentleness of the temperature rising in the cavity and reduce the damage to the valve flaps in the exhalation valve seat 7 and the inhalation valve seat 8 due to local intense heating, the double-layer serpentine heat conduction pipe 11 in the heating module is arranged on the inner wall of the valve cavity 2 near one end of the through slot 3. The serpentine layout completely avoids the passage, forms a hollow inside the valve body, and can realize the space heating of the part of the airflow entering and exiting the through slot 3, and the uniform and gentle heating ensures that the part of the airflow contacting the valve core block 5 is at a suitable temperature.

[0027] The double-layer serpentine heat conduction pipe 11 is connected with the full-closed jacket cavity block 10, the inner wall of the full-closed jacket cavity block 10 is provided with a drainage hole 15, and the drainage hole 15 is further provided with a one-way pressure valve block 20, which realizes the effect of graded dynamic heating and ensures that when the heat injection amount in the full-closed jacket cavity block 10 reaches the rated and controllable intensity, the one-way pressure valve block 20 opens when the flow valve value is reached, one end of the double-layer serpentine heat conduction pipe 11 is connected with the drainage hole 15, and the steam heat source enters the double-layer serpentine heat conduction pipe 11 to continuously realize heat transfer.

[0028] At the same time, the valve cavity 2 is also fixed with a heat source outlet 16, and when the steam heat source in the double-layer serpentine heat conduction pipe 11 completes the heat exchange with the part of the airflow in the through slot 3 and realizes the overall heating in the cavity, the steam heat source heat value decreases and can be discharged from the valve body through the heat source outlet 16. The end of the double-layer serpentine heat conduction pipe 11 away from the full-closed jacket cavity block 10 is connected with the heat source outlet 16, forming a complete heat exchange circulation path, which guarantees the reliable working performance of the breathing valve under low temperature conditions and can realize self-reliant and reliable heating and temperature regulation.

[0029] In actual use, it is found that the working temperature rising effect of the heating module is greatly affected due to the difference in the layout of the plurality of through holes. Therefore, the through hole 15 in the breather valve is arranged on the bottom cavity wall of the fully-closed jacket cavity block 10 away from the side where the steam heat source injection inlet 12 is located, which can ensure that the steam heat source input along the steam heat source injection inlet 12 is fully and uniformly distributed, achieve the filling effect in the fully-closed jacket cavity block 10, and avoid the phenomenon of excessive local temperature difference in the fully-closed jacket cavity block 10 due to the same side or same height arrangement. The heat source outlet 16 is arranged below the vertical direction of the double-layer serpentine heat conduction pipe 11, which meets the layout requirement of high-in and low-out, effectively solves the liquid residue phenomenon that may occur due to the liquefaction of a large amount of steam heat source when it meets cold, and long-time corrosion of the double-layer serpentine heat conduction pipe 11 and great influence on the working performance of the serpentine heat conduction pipe part, further improves the reliable working performance of the entire breather valve under low-temperature harsh working conditions.

[0030] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the utility model and are protected by the patent law.

Claims

1. A novel heatable breathing valve, comprising a valve body module (1), wherein a valve cavity (2) is provided in the middle of the valve body module (1), a through slot (3) is provided at the bottom of the valve cavity (2), a valve cover (4) is provided at the top of the valve body module (1), a valve core block (5) is provided inside the valve cavity (2), an inlet / exchange chamber block (6) is provided between the side of the valve body module (1) and the valve core block (5), an exhalation valve seat (7) is provided at the bottom of the valve core block (5), and an inhalation valve seat (8) is provided at the top of the valve core block (5), characterized in that: The side of the valve body module (1) outside the valve cavity (2) is also provided with a heating module, which comprises a heating module one and a heating module two, The heating module one is a full-closed jacket cavity block (10) welded with the side wall of the valve body module (1), the side of the full-closed jacket cavity block (10) is provided with a steam heat source injection port (12), the steam heat source injection port (12) is connected with a connecting pipe (13), the end of the connecting pipe (13) is provided with a flange block (14), the inner wall of the full-closed jacket cavity block (10) is provided with a dredging hole (15), The heating module two is a double-layer serpentine heat conducting pipe (11), which is arranged on the inner wall of one end of the valve cavity (2) close to the through slot (3), one end of the double-layer serpentine heat conducting pipe (11) is communicated with the dredging hole (15), the valve cavity (2) cavity wall is also fixed with a heat source guide outlet (16), the end of the double-layer serpentine heat conducting pipe (11) away from the full-closed jacket cavity block (10) is communicated with the heat source guide outlet (16).

2. A novel heatable breather valve according to claim 1, characterized in that: The dredging hole (15) is arranged on the bottom cavity wall of the full-closed jacket cavity block (10) away from the side where the steam heat source injection port (12) is located.

3. A new type of heatable breather valve according to claim 1, characterized in that: The heat source guide outlet (16) is arranged below the vertical direction of the double-layer serpentine heat conducting pipe (11).

4. A new type of heatable breather valve according to claim 1, characterized in that: The end of the air inlet and exchange cavity block (6) away from the valve core block (5) is also provided with a fire barrier (17).

5. A novel heatable breather valve according to claim 1, characterized in that: The end of the air inlet and exchange cavity block (6) away from the valve core block (5) is also provided with a rain cover (9).

6. A new type of heatable breather valve according to claim 1, characterized in that: The side wall of the full-closed jacket cavity block (10) connected with the valve cavity (2) is provided with an arc contact surface block (19).

7. A new type of heatable breather valve according to claim 1 characterized by; The dredging hole (15) is also provided with a one-way pressure valve block (20).

8. A new type of heatable breather valve according to claim 1, characterized in that: The temperature of the steam injected into the steam heat source injection port (12) is 120-140 degrees Celsius.

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