Displacement heat exchanger with upper coil pipe and lower coil pipe

Abstract

The displacement heat exchanger comprises an outer shell of the heat exchanger, a transverse upper coil pipe assembly is inserted into the upper portion of the outer shell, the outer end of the upper coil pipe assembly is fixedly connected to an upper flange connector, and a heating medium inlet and a heating medium output connecting pipe are formed at the outer end of the upper coil pipe assembly. The lower portion of the outer shell is inserted into a longitudinal lower coil pipe assembly, the outer end of the lower coil pipe assembly is fixedly connected to the lower flange connector and provided with a heating medium input connecting pipe and a heating medium outlet, a horizontal connecting pipe is inserted into the outer shell between the upper coil pipe assembly and the lower coil pipe assembly, and the ends of the connecting pipe are fixedly inserted into the outer shell. Two adjacent ports on the connecting pipe respectively extend out of the outer shell and are respectively screwed and fixed with a bent pipe joint; and the bent pipe joints at the two ends of the bent pipe joint are respectively connected with a heating medium output connecting pipe and a heating medium input connecting pipe. According to the heat exchanger, the built-in connecting pipeline is arranged to connect the upper heat exchange coil pipe and the lower heat exchange coil pipe, the heat loss of the outer side can be improved, and meanwhile the connecting pipeline can provide the strength of the shell of the heat exchanger.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat exchanger, more particularly to a volume heat exchanger with upper and lower double coil pipes. BACKGROUND

[0002] The volume heat exchanger unit is a model of heat exchanger unit, which is characterized by adopting the volume heat exchanger, stable water outlet temperature, safe and reliable water supply, simple and reasonable design, long service life, good heat exchange effect, energy saving, etc. It has horizontal and vertical forms, and is suitable for heat exchange of high-temperature water, low-temperature water and steam. The core of the volume heat exchanger unit is the volume heat exchanger, and the main components of the volume heat exchanger are the outer shell and the heat exchange coil. Some heat exchangers are provided with two groups of heat exchange coil pipes staggered on the upper and lower parts, that is, one group of horizontal upper coil pipes and one group of vertical lower coil pipes. The heat medium outlet of the upper coil pipe and the heat medium inlet of the lower coil pipe are connected by an external connecting pipeline. The external connecting pipeline is relatively long, which can easily cause heat loss. Therefore, it is necessary to improve the heat exchange efficiency. SUMMARY

[0003] The utility model discloses a volume heat exchanger with upper and lower double coil pipes, which is provided with an internal connecting pipeline to connect the upper and lower two groups of heat exchange coil pipes, so as to improve the heat loss on the outer side. At the same time, the connecting pipeline can also provide the strength of the heat exchanger shell.

[0004] A volume heat exchanger with upper and lower double coil pipes, comprising a heat exchanger shell, a water outlet pipe formed on the top of the shell, a water inlet pipe formed on the bottom of the shell, a horizontal upper coil pipe assembly inserted into the upper part of the shell, an outer end of the upper coil pipe assembly fixed to an upper flange interface and formed with a heat medium inlet and a heat medium outlet pipe, a vertical lower coil pipe assembly inserted into the lower part of the shell, an outer end of the lower coil pipe assembly fixed to a lower flange interface and formed with a heat medium inlet pipe and a heat medium outlet, the upper flange interface and the lower flange interface formed on the shell, a horizontal and cross-shaped connecting pipe inserted into the shell between the upper coil pipe assembly and the lower coil pipe assembly, the ends of the connecting pipe respectively inserted and fixed to the shell, two adjacent ports of the connecting pipe respectively extending out of the shell and respectively screwed with elbow joints, the elbows of the two ends of the elbow joints respectively connected with the heat medium outlet pipe and the heat medium inlet pipe, and the other two ends of the connecting pipe respectively screwed with sealing plugs.

[0005] Preferably, one end of the elbow joint is formed with a retaining ring and inserted with a locking sleeve, the locking sleeve is screwed and fixed to the port of the connecting pipe, a sealing washer is clamped and fixed between the port of the connecting pipe and the retaining ring of the elbow joint, the other end of the elbow joint is formed with a flange and fixed with the heat medium outlet pipe or the heat medium inlet pipe through a bolt assembly.

[0006] The elbow joint is sleeved with a heat preservation sleeve.

[0007] Preferably, the adapter pipe comprises a middle "cross" communication joint, four ends of the communication joint are respectively inserted and fixed with longitudinal or transverse connecting pipes, and the elbow joint and the sealing plug are arranged on the connecting pipes.

[0008] Preferably, the connecting pipes of the adapter pipe are respectively sleeved with adapter supports, the adapter support comprises an adapter sleeve sleeved on the connecting pipe, a boss is formed on the outer wall of the adapter sleeve, a vertical screw rod is screwed on the boss, one end of the screw rod is pressed against the outer wall of the connecting pipe, and the other end of the screw rod is fixedly connected with a circular adapter ring, and the upper coil pipe assembly and the lower coil pipe assembly are respectively inserted in the adapter ring.

[0009] Preferably, an internal thread sleeve is formed on the outer wall of the adapter ring, the internal thread sleeve is screwed on the screw rod, two fastening nuts are screwed on the screw rod, and the fastening nuts are respectively pressed against the boss and the internal thread sleeve.

[0010] Preferably, the adapter ring above the adapter pipe is longitudinal, the adapter ring below the adapter pipe is transverse, and the adapter ring below the adapter pipe is located directly below the longitudinal connecting pipe; and the adapter ring above the adapter pipe is located directly above the transverse connecting pipe.

[0011] The heat exchanger is provided with built-in connecting pipes to connect the upper and lower heat exchange coil pipes, so that the heat loss on the outer side can be improved, and meanwhile the connecting pipes can also provide the strength of the heat exchanger shell.

[0012] The heat exchanger is provided with built-in connecting pipes to connect the upper and lower heat exchange coil pipes, so that the heat loss on the outer side can be improved, and meanwhile the connecting pipes can also provide the strength of the heat exchanger shell. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view position schematic diagram of the utility model;

[0014] Fig. 2 It is a three-dimensional structure schematic diagram of the inner adapter pipe of the utility model;

[0015] Fig. 3 It is a formal structure schematic diagram of the inner adapter pipe of the utility model.

[0016] In the drawing: 1, outer shell; 2, upper coil pipe assembly; 21, heat medium inlet; 22, heat medium output connecting pipe; 3, lower coil pipe assembly; 31, heat medium input connecting pipe; 32, heat medium outlet; 4, adapter pipe; 5, elbow joint; 6, sealing plug; 7, adapter support; 71, adapter sleeve; 711, boss; 72, screw rod; 73, adapter ring; 731, internal thread sleeve; 74, fastening nut. DETAILED DESCRIPTION

[0017] Embodiment: see Figs. 1 to 3As shown, a volumetric heat exchanger with upper and lower double coil pipes comprises an outer shell 1 of the heat exchanger, the top of the outer shell 1 is formed with a water outlet pipe 11, the bottom of the outer shell 1 is formed with a water inlet pipe 12, the upper part of the outer shell 1 is inserted with a transverse upper coil pipe assembly 2, the outer end of the upper coil pipe assembly 2 is fixed on an upper flange interface and is formed with a heat medium inlet 21 and a heat medium outlet pipe 22, the lower part of the outer shell 1 is inserted with a longitudinal lower coil pipe assembly 3, the outer end of the lower coil pipe assembly 3 is fixed on a lower flange interface and is formed with a heat medium inlet pipe 31 and a heat medium outlet 32, the upper flange interface and the lower flange interface are formed on the outer shell 1, a horizontal and "cross" shaped connecting pipe 4 is inserted in the outer shell 1 between the upper coil pipe assembly 2 and the lower coil pipe assembly 3, the ends of the connecting pipe 4 are respectively inserted and fixed on the outer shell 1, two adjacent ports of the connecting pipe 4 respectively extend out of the outer shell 1 and are respectively screwed and fixed with elbow joints 5, the two ends of the elbow joints 5 are respectively connected with the heat medium outlet pipe 22 and the heat medium inlet pipe 31, and the other two ends of the connecting pipe 4 are respectively screwed and fixed with sealing plugs 6.

[0018] One end of the elbow joint 5 is formed with a retaining ring and is inserted with a locking sleeve, the locking sleeve is screwed and fixed on the port of the connecting pipe 4, a sealing washer is clamped and fixed between the port of the connecting pipe 4 and the retaining ring of the elbow joint 5, the other end of the elbow joint 5 is formed with a flange and is fixed with the heat medium outlet pipe 22 or the heat medium inlet pipe 31 through a bolt assembly, the elbow joint 5 with the above structure is convenient and fast to install and connect.

[0019] The elbow joint 5 is inserted with a heat preservation sleeve, the heat preservation sleeve can adopt a sponge sleeve with a circular arc cross section, the sponge sleeve is wrapped on the elbow joint 5 and is bound with a winding belt.

[0020] The connecting pipe 4 comprises a middle "cross" shaped communication joint 41, four ends of the communication joint 41 are respectively inserted and fixed with longitudinal or transverse connecting pipes 42, the elbow joint 5 and the sealing plug 6 are respectively arranged on the connecting pipe 42, and the connecting pipe 4 with the above structure is convenient to install and connect on the outer shell 1.

[0021] The connecting pipe 42 of the connecting pipe 4 is respectively sleeved with a connecting support 7, the connecting support 7 comprises a connecting sleeve 71 sleeved on the connecting pipe 42, a boss 711 is formed on the outer wall of the connecting sleeve 71, a vertical screw rod 72 is screwed on the boss 711, one end of the screw rod 72 abuts against the outer wall of the connecting pipe 42 and the other end is fixed with a circular ring-shaped connecting ring 73, the upper coil pipe assembly 2 and the lower coil pipe assembly 3 are respectively inserted in the connecting ring 73, and the connecting support 7 can be used to support the upper coil pipe assembly 2 and the lower coil pipe assembly 3.

[0022] The outer wall of the adapter ring 73 is formed with an internally threaded sleeve 731, the internally threaded sleeve 731 is screwed on the screw rod 72, two fastening nuts 74 are screwed on the screw rod 72, the fastening nuts 74 are pressed on the boss 711 and the internally threaded sleeve 731 respectively, the internally threaded sleeve 731 can adjust the height of the adapter ring 73, and the fastening nuts 74 can prevent loosening.

[0023] The adapter ring 73 above the adapter pipe 4 is longitudinal, the adapter ring 73 below the adapter pipe 4 is transverse, and the adapter ring 73 below the adapter pipe 4 is located directly below the longitudinal connecting pipe 42; the adapter ring 73 above the adapter pipe 4 is located directly above the transverse connecting pipe 42.

[0024] Working principle: the structure is a volumetric heat exchanger, and the technical point is that an adapter pipe 4 is installed in the middle of a shell 1 of the heat exchanger, the adapter pipe 4 can be used as a connecting pipeline between an upper coil pipe assembly 2 and a lower coil pipe assembly 3, and heat loss outside the shell 1 is small;

[0025] Meanwhile, the adapter pipe 4 strengthens the strength of the middle part of the shell 1, and an adapter support 7 can also be installed and arranged, and the adapter support 7 can support heat exchange coil pipes in the shell 1.

[0026] The embodiments are used to illustrate the utility model, and are not used to limit the utility model. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the utility model, and therefore the protection scope of the utility model should be as listed in the claims of the utility model.

Claims

1. A volumetric heat exchanger with upper and lower double coil pipes, comprising an outer casing (1) of the heat exchanger, a water outlet pipe (11) is formed on the top of the outer casing (1), a water inlet pipe (12) is formed on the bottom of the outer casing (1), an upper coil pipe assembly (2) is inserted into the upper part of the outer casing (1) in a transverse direction, the outer end of the upper coil pipe assembly (2) is fixed on an upper flange interface and is formed with a heat medium inlet (21) and a heat medium outlet pipe (22), a lower coil pipe assembly (3) is inserted into the lower part of the outer casing (1) in a longitudinal direction, the outer end of the lower coil pipe assembly (3) is fixed on a lower flange interface and is formed with a heat medium inlet pipe (31) and a heat medium outlet (32), the upper flange interface and the lower flange interface are formed on the outer casing (1); characterized in that: The outer shell (1) is provided with a horizontal and "cross" shaped connecting pipe (4) between the upper coil assembly (2) and the lower coil assembly (3), the ends of the connecting pipe (4) are respectively inserted and fixed on the outer shell (1), two adjacent ports of the connecting pipe (4) respectively extend out of the outer shell (1) and are respectively screwed with elbow joints (5), the two ends of the elbow joint (5) are respectively connected with the heat medium output pipe (22) and the heat medium input pipe (31); the other two ends of the connecting pipe (4) are respectively screwed with sealing plugs (6).

2. A volumetric heat exchanger with upper and lower double coils according to claim 1, characterized in that: One end of the elbow joint (5) is formed with a check ring and is inserted with a locking sleeve, the locking sleeve is screwed and fixed on the port of the connecting pipe (4), a sealing washer is clamped and fixed between the port of the connecting pipe (4) and the check ring of the elbow joint (5); the other end of the elbow joint (5) is formed with a flange and is fixed with the heat medium output pipe (22) or the heat medium input pipe (31) through a bolt assembly; The elbow joint (5) is inserted with a heat preservation sleeve.

3. A volumetric heat exchanger with upper and lower double coils according to claim 1, characterized in that: The connecting pipe (4) comprises a middle "cross" shaped communication joint (41), four ends of the communication joint (41) are respectively inserted and fixed with longitudinal or transverse connecting pipes (42), the elbow joint (5) and the sealing plug (6) are respectively arranged on the connecting pipe (42).

4. A volumetric heat exchanger with upper and lower double coils according to claim 3, characterized in that: The connecting pipe (42) of the connecting pipe (4) is respectively sleeved with a connecting bracket (7), the connecting bracket (7) comprises a connecting sleeve (71) sleeved on the connecting pipe (42), a boss (711) is formed on the outer wall of the connecting sleeve (71), a vertical screw rod (72) is screwed on the boss (711), one end of the screw rod (72) is pressed against the outer wall of the connecting pipe (42) and the other end is fixed with a circular annular connecting ring (73), the upper coil assembly (2) and the lower coil assembly (3) are respectively inserted in the connecting ring (73).

5. A volumetric heat exchanger with upper and lower double coils according to claim 4, characterized in that: An inner threaded sleeve (731) is formed on the outer wall of the connecting ring (73), the inner threaded sleeve (731) is screwed on the screw rod (72), two fastening nuts (74) are screwed on the screw rod (72), the fastening nuts (74) are respectively pressed against the boss (711) and the inner threaded sleeve (731).

6. A volumetric heat exchanger with upper and lower double coils according to claim 4, characterized in that: The connecting ring (73) above the connecting pipe (4) is longitudinal, the connecting ring (73) below the connecting pipe (4) is transverse, the connecting ring (73) below the connecting pipe (4) is located directly below the longitudinal connecting pipe (42); the connecting ring (73) above the connecting pipe (4) is located directly above the transverse connecting pipe (42).

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