The invention relates to a test-tube membrane component and a membrane accumulator with the same, belongs to the technical field of
energy storage, and is intended to effectively solve the problem that an existing accumulator has low energy accumulation density and low practicality and economy. The membrane accumulator comprises fixing bolts, positioning plates, support orifice plates, test-tube membrane components, porous supports, a support framework, a solution, a solution outlet connection tube, a solution inlet connection tube, a steam connection tube, fastening bolts, a lower sealing
orifice plate, sealing filler, an upper sealing
orifice plate, and a housing. When the membrane accumulator experiences inside
crystal,
water vapor may enter the solution via a
semipermeable membrane of the membrane component, the
crystal absorbs the
water vapor so as to be diluted, and heat released increases the
crystal dissolving speed. When enhancing
heat transfer and
mass transfer efficiency is required, more test-tube membrane components can be added in the accumulator via simple operations so as to arrive at enhancement. The test-tube membrane component and the membrane accumulator are simple in structure, good in
operational reliability, good in
crystallization resistance, and high in energy accumulation density, and
mass transfer efficiency can be enhanced via simple operations.